JPH0639866B2 - Automatic opening and closing device for opening coverings - Google Patents

Description

Description: TECHNICAL FIELD The present invention closes openings such as windows, doorways, ridge openings, and the like.
The present invention relates to an automatic opening / closing device that opens and closes a light-transmitting plate, an opaque plate, a panel, etc. (hereinafter referred to as an opening covering material or a panel) in response to a switch operation. Automatic switchgear.

[Prior art]

For example, a sunroof of an automobile is provided with an automatic opening / closing device that opens / closes a tilt or a slide of a sunroof (roof panel) according to a switch operation of a driver. In order to improve the operability of opening and closing, there is also an automatic opening / closing device that automatically drives (one-touch automatic drive) until fully closed or fully opened in response to a momentary switch operation (one-touch operation).

Also, the motor load is detected with a resistor for motor current detection,
There is also a drive control device for a vehicle sunroof that compares this with an overload reference value and automatically stops the motor when overloaded.

For example, Japanese Unexamined Patent Publication No. 57-29112 discloses a drive device that gives a full-close instruction and a full-open instruction with a one-touch switch and stops driving when the motor becomes overloaded.

The motor is energized only while the switch is closed, and the motor energization is automatically stopped when the panel opening reaches a predetermined value (for example, JP-A-58-58).
No. 43823).

Japanese Utility Model Laid-Open No. 58-112135, which discloses an electric moving rack device
In the gazette, when the aisle switch 13A generates a first signal, a signal for instructing the movement of the shelving device that closes the aisle to open the aisle is generated, and the aisle switch 13A generates a second signal.
Passage control circuit 15 that generates a stop signal when a signal is generated
A is disclosed in one block.

[Problems to be Solved by the Invention]

Manual operation drive (for example, the above-mentioned JP-A-58-4382)
3), the switch may be opened when the panel drive is abnormal, but in the case of one-touch automatic drive (for example, Japanese Patent Laid-Open No. 57-29112),
In response to the one-touch operation of the switch, the motor continues to be energized until it is fully closed or fully opened, so if an object is caught between the panel and the window frame, the drive of the panel will be disturbed.
If the motor continues to be energized, the motor heats up. Therefore, conventionally, a resistance for detecting a motor load (for example, the above-mentioned Japanese Patent Laid-Open No. 57-57) is used.
No. 29112) or a motor temperature detecting resistor or the like to detect a motor load, and when an overload is detected, an automatic protection operation for stopping the energization of the motor is performed.

However, before waiting for the increase of the motor load, the operator may recognize the abnormal condition and try to stop the panel, and may make a mistake in the switch operation and immediately perform the switch operation again. There is also a switch operation in which a hand or an object accidentally touches the one-touch switch to start the panel drive and hurry to stop it. In such a case, it is preferable that the driving of the panel can be stopped by a simple switch operation without needing to think about a stop switch or the like.

However, JP-A-57-29112, JP-A-58-43823, and JP-A-58-11213 have been disclosed.
No. 5 gazette discloses a combination circuit of electric logic elements, a relay circuit, and a block whose contents are unknown (path control circuit 15).
A) is shown, and it is not easy to configure a control device that satisfies the above demands based on these disclosures. In addition, even if an opening / closing control device that satisfies the above-mentioned demand is realized, an object is already caught or caught in the opening in the state where the overload response is automatically stopped or the emergency stop is performed by a simple switch operation. It is possible that it is pinched. It is preferable to quickly release the clamping pressure.

The first object of the present invention is to further improve the safety of the one-touch automatic slide closing drive, and the second object is to automatically and quickly release the pinching pressure when an object is caught in the opening. To do.

[Means for Solving the Problems]

The automatic opening / closing device for an opening covering material according to the present invention is an electric drive mechanism including an electric motor (11) and an opening / closing mechanism for opening and closing the opening covering material (23) in accordance with forward and reverse rotations of the electric motor (11); Motor driver (2
Opening detection means (200a, 200b) for generating an opening signal indicating the open / closed state of the opening / closing mechanism; One-touch automatic slide closing instruction switch (SWC) for instructing opening / closing of the opening covering (23) ) Including open / close instruction switch means (SWMO, SWO, SWMC, SWC); load detection means (240) for detecting the load of the opening / closing mechanism; and an overload reference value for the load detected by the load detection means (240). Overload detection means (110) for detecting presence or absence of overload and detecting presence of overload by setting overload information (overload flag) in comparison with An open / close control means (11) for determining the forward rotation drive, the reverse rotation drive and the stop of the electric motor by referring to the instruction and the presence / absence of the overload presence information and giving a signal instructing this to the motor driver (11
0); The one-touch automatic slide closing after the closing instruction by the one-touch automatic slide closing instruction switch (SWC) disappears during driving of the opening covering material corresponding to the closing instruction by the one-touch automatic slide closing instruction switch (SWC). A first protection control that gives a signal to the motor driver to stop driving the electric motor and to drive the electric motor in a direction to open the opening covering in response to a reclosing instruction from the instruction switch (SWC). Means (110): Driving the electric motor in response to the detection of an overload by the overload detection means during the driving of the opening covering material corresponding to the closing instruction by the one-touch automatic slide closing instruction switch (SWC). Second protection control means (110) for giving a signal to the motor driver instructing to drive the electric motor in a direction to stop and open the opening covering; and, In response to the operation of any switch (SWMO, SWO, SWMC) other than the one-touch automatic slide close instruction switch (SWC) while the opening cover material corresponding to the close instruction by the one-touch automatic slide close instruction switch (SWC) is being driven. Third protection control means (110) for stopping the drive of the electric motor and giving a signal to the motor driver to drive the electric motor in the direction to open the opening cover. Symbols in parentheses indicate corresponding elements, corresponding functions, etc. of the embodiment shown in the drawings.

The function of the opening / closing control means (110) is specifically shown in FIG. 6a and subsequent figures in the embodiment shown in the drawings. The function of the first protection control means (110) is, in the embodiment shown in the drawing, the diamond block "SWO SW" of S61A of FIG. 16h.
MO SWC or SWMC on? Is YES when SWC is turned on.
Then, the procedure goes to S68A, and from S68A to S78A, the route to S89A in FIG. 16i is specifically shown. Also, the second protection control means
The function of (110) is the 16th function in the embodiment shown in the drawings.
Diamond block "SWO SWC or SWMC" of S61A in the figure i
on? Is NO, goes through S62A to S64A and goes through SI5 and S68A
The route from S78A to S89A in FIG. 16i is specifically shown. Further, in the embodiment shown in the drawings, the function of the third protection control means (110) is that the judgment of the diamond block "SWO SWMO SWC or SWMC on?" In S61A of FIG. 16h is ON of SWO SWMO or SWMC. To YES to S68A, S
It is specifically shown in the route from 68A to S78A to S89A in FIG. 16i.

[Action]

According to this, after the slide closing automatic drive is started in response to the first momentary closing of the one-touch automatic slide closing instruction switch, the second momentary closing of the one-touch automatic slide closing instruction switch (SWC) is performed. If so, the first protection control means (110) gives a signal to the motor driver to stop driving the electric motor and to drive the electric motor in the direction of opening the opening covering. As a result, the slide closing drive is stopped and the opening covering is driven in the opposite direction, that is, in the direction to open the opening. Therefore, when an object is pushed by the opening cover by the slide closing automatic drive and the one-touch auto slide closing instruction switch (SWC) is pressed in a hurry, the situation where the object is pinched immediately stops, and it has already been pinched to some extent. Even
It is released.

In addition, when the slide close automatic drive is started in response to the closing of the one-touch auto slide close instruction switch, and the object is sandwiched by the opening covering material, when the motor load reaches the overload reference value, that is, the object is When the pressure is applied to a certain degree, the overload detection means (110) detects that there is an overload, and in response to this, the second protection control means (110) stops the drive of the electric motor and opens the opening covering material. A signal for instructing the driving of the electric motor in the opening direction is given to the motor driver. As a result, even if the operator does not recognize that the object is pinched, the slide closing drive is automatically stopped, and the opening covering material is automatically opened to release the pinching pressure.

In addition, the first one-touch automatic slide closing instruction switch
One-touch auto slide close instruction switch (SWC) after the slide close automatic drive is started according to the momentary closing.
When the switch (SWO SWMO or SWMC) other than the above is operated, the third protection control means (110) stops the driving of the electric motor and outputs a signal instructing the driving of the electric motor to open the opening covering. To the motor driver. As a result, the slide closing drive is stopped and the opening covering is driven in the opposite direction, that is, in the direction to open the opening. Therefore, when an object is pushed by the opening covering material by the slide closing automatic drive and the other switch (SWO SWMO or SWMC) is pressed in a hurry, the situation of pinching the object is immediately stopped, and the pinching has already been done to some extent. But it is released.

Due to the functions of the first protection control means and the third holding control means described above, for example, when the operator rolls and hits the operation board in a hurry to operate any of the switches, the slide closing drive stops there, and The opening covering is driven in the opposite direction, that is, in the direction of opening the opening, and has a high ability to deal with emergencies.

Other objects and features of the present invention will become apparent from the embodiments described below with reference to the drawings.

〔Example〕

FIG. 1 shows an outline of an electric drive mechanism according to an embodiment of the present invention. In this embodiment, a roof panel 23 that opens and closes an opening 22 of a roof 21 of an automobile is driven and controlled.
An opening 22 is formed in a roof 21 of an automobile, and the opening 22 is slid and opened and tilted by a roof panel 23. The panel 23 includes a drive cable 24,
25. Sunroof panel 23 has opening 2
It is fixed to the brackets arranged on both sides of the two (only one side is shown in FIG. 1).

As shown in FIG. 2, a long hole 27 that descends toward the front of the vehicle is provided on the front edge side of the bracket 26, and a pin 28a of the front guide 28 is engaged with this long hole 27.

A front shoe 29 is attached to a lower portion of the front guide 28. Further, one end of a front ring 30 is rotatably attached to the front guide 28 by a shaft 31, and the other end of the front ring 30 is attached to a bracket 26. , Axis 3
It is pivoted at 2.

As shown in FIG. 4, an engaging pin 38 is arranged on the rear edge side of the bracket 26, and a plate 33 is fixed by locking pins 34, 35. A guide slot 36 is formed in the plate 33, and the slot 36 has a horizontal portion provided on the front side of the vehicle and an inclined portion which rises from the rear end of the horizontal portion toward the rear of the vehicle. The tilt pin 3 is attached to the front end of the plate 33.
7 have been planted.

The link 39 has a roller pin 40 at the front end, a rear shoe 41 at the rear end, which is rotatably attached to the link 39, and an arc shape centered on the front end portion of the guide slot 36, which is engageable with the tilt pin 37 at the upper end. It has a notch groove 42 and a guide pin 43 formed. The guide pin 43 is engaged with and guided by the guide slot 36.

The end portions of the drive cables 24 and 25 are connected to the rear shoe 41 as shown in FIG. Therefore, when the drive cables 24 and 25 move forward and backward, the rear shoe 41 and the guide link 3
9, through the guide pin 43 of the guide link 39, and the guide slot 36 with which the guide pin 43 is engaged,
It is transmitted to the bracket 26 and further to the front guide 28.

As shown in FIGS. 4 and 5, the front shoe 29
The rear shoe 41 is engaged with and guided by guide rails 44 arranged on both sides of the roof opening 22. Further, the foot portion 40a of the roller pin 40 is engaged and guided in a rail groove 44a on the vehicle passenger compartment side of the guide rail 44.

On the other hand, in the rail groove 44b outside the passenger compartment of the guide rail 44,
Engagement guide is provided between the engaging pin 38 and the intermediate portion 38a.

Further, as shown in FIG. 4 and FIG. 6, a block 45 is fixedly arranged in the guide rail 44, and a roller pin 40 provided on a guide link 39 is provided on the inside of the block 45.
An inclined groove 46 that guides the head portion 30 of the vehicle is formed, and an inclined groove 47 that guides the head portion 38 of the engagement pin 38 fixed to the bracket 26 is formed outside the vehicle compartment. Further, notches are formed in the flange portions 48 and 49 of the guide rail 44 at the locations where the blocks 45 are arranged. Therefore, when the engaging pin 38 moves up the inclined groove 47 of the block 45, the leaf spring 51 pressed by the lower end 26a of the bracket 26 moves upward and engages with the opening 50a of the block 45 (FIG. 4). reference).

An arm 52 is arranged on the windshield 28, and a rain gutter 53 is connected to the rear end of the arm 52. Therefore rain gutter 53
Can always completely catch raindrops from the rear end of the roof panel 23 (see FIGS. 1, 4, and 7).

The operation of the configuration described above will be described. Normally, the panel 23 closes the opening 22 as shown in FIG. This is the "fully closed" position. In this “fully closed” position, the guide pin 40 of the guide link 39 is aligned with the inclined groove 46 of the block 45.
A little to the left of the lower end of the guide slot 43, the guide pin 43 is located at the intersection of the horizontal portion of the guide slot 36 and the upper right inclined portion.

When the drive cable is actuated and the rear shoe 41 is moved to the rear of the vehicle (to the left in FIG. 5), the guide link 39 is also retracted. The guide pin 43 is engaged and guided to the inclined portion from the intersection of the horizontal portion and the inclined portion of the guide slot 36 of the plate 33, and the panel 23 is pulled rearward through the plate 33, that is, the bracket 26, and the rear edge of the panel 23 is pulled. It is urged downward. Therefore, the engaging pin 38 fixed to the bracket 26 descends along the inclined groove 47 of the block 45, and the movable panel 23 descends while moving backward (FIGS. 7 and 8). At this time, in the “fully closed” position, as shown in FIGS. 2 and 5, the pin 31 is slightly lower than the pin 32, but the front link 30 is moved downward as shown in FIGS. 3 and 8 as it descends. As shown in FIG. 3, the panel is horizontal, and thus can be accommodated in the lower rear portion of the roof 21 of the automobile, and the opening 22 is opened by sliding the panel 23 (slide opening). The state where the panel 23 is moved to the limit position at the rear of the vehicle (to the right in FIG. 5) by this slide is “slide fully open”. As will be described later, the area from the “fully closed” position to the “slide fully open” position is set to the “operation mode” from the “fully closed” position to the position just before fully closed.
It is divided into an area of "II" and an area of "operation mode I (IA + IB + IC)" from the position immediately before the fully closed position to the fully open position of the slide.

On the other hand, from the "fully closed" position shown in FIG.
When 5 is driven to move the rear shoe 41 forward (to the left in FIG. 5), first, the guide pin 40 and the guide pin 43 arranged at the front end of the guide link 39 also move forward horizontally, and 40 is the inclined groove 4 of the block 45
It reaches the upper left slope at the lower end of 6 (Fig. 4). This is the "tilt down complete" position. As will be described later, the region from the “fully closed” position to the “tilt down completed” position is set as the “operation mode III” region.

When the rear shoe 41 is further moved forward (leftward in FIG. 5) from the “tilt down completed” position, the pin 40 rises along the inclined groove 46 of the block 45, whereby the guide link 39 moves forward. It rotates clockwise and rises accordingly (see Fig. 9). This makes the panel 23
Tilts up. By the time the guide pin 40 crosses the upper end of the inclined groove 46, the pin 43 reaches the left end of the horizontal portion of the guide slot 36 of the plate 33, and the guide link 39 rotates clockwise around the pin 43 to guide the guide link 39.
Of the tilt pin 3 in which the notch groove 42 of FIG.
Engage with 7. When the rear shoe 41 further moves forward, the panel 23 becomes the "tilt up completed" position shown in FIG. As will be described later, the area from the “tilt down completion” position to the “tilt up completion” position is the “operation mode IV” area.

As described above, since all the panels 23 are driven through the brackets 26, after the panels 23 are mounted on the roof 21 of the automobile, the brackets 26 are attached to the openings 22 in the "fully closed" position shown in FIG. Is fitted and fixed to the bracket 26 by bending the weather strip.

As described above, the “fully closed” position (see FIGS. 5 and 11b).
When the shoe 45 is slid toward the vehicle rear side (to the right in the drawing) from the figure, the panel 23 slides downward while opening (FIG. 11c), and further slides to the full open (11d).
(Fig.) Panel 23 from the "slide fully open" position,
When the shoe 45 is driven forward of the vehicle (to the left in the drawing), the state shown in FIG. 11c is followed by the state shown in FIG. 11b, the panel 23 closes the opening 22, and the weather strip at the front edge thereof opens the opening 22. Close. This "fully closed"
When the shoe 45 is further driven from the position to the front of the vehicle (to the left in the drawing), the "tilt down completion" position is first reached (Fig. 4), and the rear end of the panel 23 rises to "tilt up completion". It is in the position (FIGS. 10 and 11a).

Conversely, the "tilt up complete" position (see FIG. 10 and the first
When the shoe 45 is driven rearward (to the right in the drawing) from FIG. 1a), the panel 23 first moves to the “tilt down completed” position (FIG. 4) and then to the “fully closed” position (FIG. 5). The opening 22 is completely closed, followed by a slide open and then in the "slide full open" position.

In this way, the shoe 45 simply slides backward (to the right).
By driving and driving the slide forward (to the left), the panel 23 completes the tilt-up-tilt partial opening-.
Tilt down complete-Fully closed-Slide partial open-Slide fully open, and vice versa, slide full open-Slide partial open-Full close-Tilt down complete-Tilt partial open-
Tilt up is completed, and the status changes.

The cables 24 and 25 for driving the respective shoes (45) on the vehicle side are connected to a cable drive mechanism mainly composed of the speed reducer 9 and the motor 11, and
Depending on the forward and reverse bias of the cables 24 and 25,
The 9 parts of the speed reducer move in opposite directions and drive backward.

FIG. 12a shows a plan view of the cable drive mechanism and FIG.
A cross-sectional view is shown in the figure.

The speed reducer 9 includes a worm 14 ₁ fixed to the rotary shaft of the motor 11 and a worm wheel gear 14 ₂ meshed with the worm 14 ₁ and pivotally mounted on the rotary shaft 15 and a friction including a disc spring 16 ₁ on the gear 14 _2. A gear 14 ₃ coupled via a clutch 16 ₂ and fixed to the rotary shaft 15, a gear 14 ₅ meshed with the gear 14 ₃ and fixed to the rotary shaft 18, and a rotary shaft 18
Gear 10 fixed to and meshing with toothed cables 24, 25
Etc. form a gear train.

As shown in FIG. 13, an eccentric bearing 19 having an eccentric circumferential surface 19a is fitted to the tip of the rotary shaft 15, and a cam 20 is pivotally attached to the circumferential surface 19a. .
A planetary gear 201 is pivotally attached to the eccentric bearing 19.
The planetary gear 201 meshes with the internal teeth 210 of the housing, and a pin 202 is formed on the planetary gear 201. A cam 20 is pivotally attached to the tip of the rotary shaft 15. A through groove is formed in the cam 20, and the pin 202 is engaged with this groove. As a result, the rotary shaft 1
5, the bearing 19 rotates, the planetary gear 201 meshes with the internal teeth 210 of the housing to rotate differentially, the pin 202 moves, and the pin 202 pushes the cam 20 to rotate.

On the peripheral surface of the cam 20, one groove 20b is formed on the upper stage and two grooves 20a and 20c are formed on the lower stage. The limit switch 200b is arranged on the upper stage of the peripheral surface, and the limit switch 20b is formed.
0a are arranged so as to face each other on the lower stage of the peripheral surface.
In this embodiment, the open / closed state of the panel 23 is roughly indicated by a slide open state (mode I), a slide closed state from immediately before slide fully closed to fully closed (mode II), and a tilt closed state from full closed to completion of tilt down. State (Mode III), and
The tilt closed state (mode IV) is detected as four states, and the panel opening / closing control mode is specified in each state.
More specifically, the switches 200a and 200 for detecting the opening degree
The number of b is two, and only four states are roughly represented by the combination of open and closed, but in the lower stage of the peripheral surface of the cam 20,
In addition to the groove 20a, a groove 20c is formed so that the switch 200a is opened at an opening degree ("immediately before closing") in which the panel 23 is opened about 10 cm toward the slide opening side from the fully closed state. . The mode in which the switch 200a opens in the groove 20c (temporary stop instruction state; mode IB) is in the section of the above-mentioned mode I.

FIG. 14 shows the relationship between the rotation angle of the cam 20, the open / closed states of the limit switches 200a and 200b, and the panel open / close control operation mode. (IB) of mode I is the temporary stop instruction mode, and mode II is the mask section. The cam 20 is in the tilt-up completed state (14th
(The state shown at the left end of the figure: corresponding to FIG. 11a), the electric motor 11 is normally rotated to rotate counterclockwise in FIG. 14, and the panel 23 is completely tilted down, fully closed, and immediately before fully closed. The limit switches 200a and 200b are opened and closed as shown in FIG. 14 as they are driven to the position, fully closed 10 cm before, and fully opened. The cam 20 rotates clockwise in FIG. 14 by urging the electric motor 11 in the reverse direction from the fully closed state (state shown at the rightmost end in FIG. 14: corresponding to FIG. 11d), and the panel 23 is fully closed. The limit switches 200a and 200b are driven to open and close as shown in FIG. 14 as they are driven 10 cm before, just before full closing, fully closed, tilt down completed, and tilt up completed. In this embodiment, the overload detection (particularly the trapping of the human body) and the motor stop at the time of overload are performed, and it is mode I and the panel 23 is fully opened that the motor is temporarily stopped 10 cm before fully closing for safety. It is when the slide drive is performed toward the fully closed position.

Referring again to Figures 12a and 12b. When the cable 24 or 25 is stopped and restrained with a certain amount of force,
The friction clutch 16 ₂ causes slippage, and the gear 14 ₂ is rotationally driven by the motor 11, but the shaft 15 and the gear 14 ₃ fixed to the shaft do not rotate. That is, the clutch 16 ₂ is provided as one mechanical safety mechanism.

FIG. 15 shows an electric circuit for performing forward and reverse drive energization and energization control of the motor 11.

Referring to FIG. 15, one end of the motor 11 is connected to the power supply voltage +12 via the relay contact piece 231 of the motor driver 230.
V or shear ground, and the other end is connected to the power supply voltage + via the load detecting resistor 240 and the relay contact piece 232.
Connected to 12v or shear earth. Relay contacts 231 and 232 that make this connection are driven by relay coils 233 and 234, respectively. In this embodiment, the resistor 240 is used as the load detecting means.

The relay coils 233 and 234 are connected to the drive transistors 251 and 252 of the relay drive circuit 250, respectively. The relay drive circuit 250 is connected to output ports 0 ₀ and 0 _{7 of the} microprocessor 110 of the electric control device 100 described later.

When the transistor 251 is turned on, the relay coil 2
When 33 is energized, the relay contact piece 231 is switched to the chassis ground side, and the power source voltage + 12v-contact piece 232-resistor 2
40-motor 11-contact piece 231-current flows through the path of shear earth, the motor 11 rotates in the forward direction, and the sunroof panel 23 opens. When the transistor 252 is turned on, the relay coil 234 is energized, the relay contact piece 232 is switched to the ground side, and the power supply voltage + 12v-contact piece 231-.
A current flows through the path of the motor 11-the resistor 240-the contact piece 232, the motor 11 reversely rotates, and the panel 23 closes.

The constant voltage power supply circuit 310 applies a constant voltage Vcc to each part of the circuit.

The filter circuit 260 uses a motor load detection voltage (resistor 24
This is a filter that removes high fluctuations (high frequency components) of the frequency component of 0 voltage). In addition to the filter elements (resistors and capacitors), the input voltage higher than the voltage Vcc is Vcc + Vr.
(Vr is a forward voltage drop of the diode), and diodes 261 and 262 are provided to cut an input voltage lower than the ground potential to -Vr to protect the operational amplifier in the subsequent stage.

The amplifier circuit 270 amplifies the output of the filter circuit 260 to a required level. The output Vs of the amplifier circuit 270 is subsequently treated as a load detection voltage.

The analog output Vs of the amplifier circuit 270 is applied to the 8-bit A / D converter 280 and 8-bit digital data indicating Vs is given to the microprocessor 110.

The power-on reset circuit 290 is connected to the reset terminal of the microprocessor 110 and resets the microprocessor 110 when power is supplied to each circuit.

Input ports I _{22 to} I _{27 of the} microprocessor 110
Includes a tilt-down instruction switch SWD, a tilt-up instruction switch SWU, as an opening / closing instruction means for the panel 23.
Manual slide open instruction switch SWMO, automatic slide fully open instruction switch SWO, manual slide close instruction switch S
WMC and automatic slide fully closing instruction switch SWC are connected. These switches are closed only while they are pressed, and return to open when the switches are released. Table 1 summarizes the meaning of closing each switch.

The reading of the opening and closing of these switches by the microprocessor 110 is defined by the mode described above.

FIG. 14 shows a section in which each switch is opened and closed. In FIG. 14, a section in which a specific switch is not written means that reading is not performed. Therefore, even if the switch is operated, the panel open / close drive assigned to the switch is not performed. Absent.

Input ports I ₂₀ and I of microprocessor 110
₂₁ are connected to limit switches 200a and 200b of the panel position detecting device 300, respectively. Both of these limit switches 200a, 200b are normally open type,
When the switch is closed, the L level signal is input to the input port, and when the switch is open, the H level signal is input.

In the internal ROM of the microprocessor 110, the 16th
A program for performing slide opening / closing control and tilt opening / closing control of the panel 23 shown in FIGS. 16 to 16m is stored.

The control operation of the microprocessor 110 will be described below with reference to the flow charts shown in FIGS. 16a to 16m.

First, refer to FIG. 16a. When the power is turned on (S1)
The microprocessor 110 includes internal registers, flags,
A timer (program timer) and the like are initialized (set to the contents of the waiting state), and input / output ports are initialized (set to the contents of the waiting state: the motor 11 is stopped, the input port is readable). This is the initialization of step S2. Next, the microprocessor 110 reads the signal level (H or L) of the input ports I ₂₁ and I ₂₀ in step S3 and sets (memorizes) it in the mode register [A, B].
[A, B] is data (opening signal) indicating the mode (FIG. 14) in outline, and A means the signal level of the input port I ₂₁ and B means the signal level of the input port I ₂₀ .

Next, in step S4, the microprocessor 110 reads the levels of the input ports I _{22 to} I ₂₇ and sets (memorizes) them in the switch read register (significant 6 bits). If all 6 significant bits of this register are H, it means that none of the switches (Table 1) have been operated.
If either of them is L, the switch connected to the input port I ₂ i corresponding to the bit storing it is closed.

In steps S3 and S4 above, the limit switch 20
It means that the mode data (opening signal) indicated by 0a and 200b open and closed are set in the mode register [A, B], and the panel 23 open and close instruction data is set in the switch reading register.

Here, the microprocessor 110 refers to the contents of the mode register [A, B] and the contents of the switch read register, 16b when switch SWD is closed in mode IV
In the tilt down control shown in the figure, B. When the switch SWU is closed in the modes IV and III, it is checked whether or not there is an overload flag. If there is no overload flag, the tilt-up control shown in FIG. 16c is shown in FIG. 16k if there is an overload flag. The overload manual response drive control shown in FIG. When the switch SWMO is closed in the modes III to I and whether or not there is an overload flag, if there is no overload flag, the slide opening control shown in FIG. 16d is shown in FIG. The overload manual response drive control shown in FIG. If the switch SWO is closed in mode III and whether there is an overload flag or not, if there is no overload flag, the first
If there is an overload flag in the slide fully open control shown in FIG. 6e, the overload manual response drive control shown in FIG.
Also, if the switch SWO is closed in mode II or I, the on flag is set to see if there is an overload flag.
If there is no overload flag, the slide fully open control shown in FIG. 16e is used. If there is an overload flag, the overload manual response drive control shown in FIG. 16l is used. If the switch SWMC is closed in modes II and I and whether there is an overload flag or not, if there is no overload flag, the slide closing control shown in FIG. The overload manual response drive control shown in FIG. When the switch SWC is closed in the modes II and I, the ON flag is set, and the mode is referred to by the mode II or I.
At the time of B [switch 200a open (H), 200b close (L)], the above E. The same as when the switch SWMC of No. is turned on, and in the mode IA or IB, it is checked whether or not there is an overload flag. If there is no overload flag, the slide fully closing control shown in FIG. If so, the process proceeds to the overload manual response drive control shown in Fig. 16m. If neither switch is closed, the process returns to step S3. The above is steps S5 to S15b in FIG. 16a.

The tilt down control will be described with reference to FIG. 16b. When this tilt down control is performed, the microprocessor 110
First instructs the forward rotation bias of the motor 11 to the transistor circuit 250 of the motor driver (step S16).

This is done by setting H at output port 0 ₀ and L at 0 ₇ . Since the tilt-down instruction is read only in the mode IV, the normal rotation of the motor 11 drives the panel 23 from the tilt-closed state to the tilt-down completion, and further toward the fully closed state. Since the end of the tilt-down control is the fully closed state (mode III), the open / closed states of the limit switches 200a and 200b are read in step S17 to set the mode data in the mode register, and the open / close state is opened in step S18. Read the state of the instruction switch (Table 1), set it in the switch read registers, refer to the contents of those registers, and if the mode is not III and the other switches are not closed, the timer d
The operation of setting t (program timer) and waiting for its time-out and returning to step S17 again when time-out is repeated. During this time, the motor 11 is rotating normally.

Becomes the mode III, the microprocessor 110, both the instructions to give to the transistor circuit 250 (the output port _{0 0 0 7} to the motor 11 and stopped at step S23 H
Set), and the process returns to step S3 in FIG. 16a.

By this tilt down control, when the switch SWD is temporarily closed while the panel 23 is in the tilt open state, the panel 2
The motor 11 is urged in the forward direction until 3 is fully closed, and the motor 11 is stopped when the panel 23 is fully closed. If other switches are closed before the panel 23 is fully closed,
This is read in step S17, the process proceeds from step S20 to step S23, the motor 11 is stopped, and the control of the microprocessor 110 proceeds to step S3. S3
Since the newly closed switch is read by,
Control corresponding to the newly closed switch is performed. However, in mode IV, S is placed outside the switch SWD.
Since the response is made only to the closing of the WU, the motor 11 remains stopped unless the newly closed switch is the SWU.

Next, the tilt-up control will be described with reference to FIG. 16c. Upon proceeding to this tilt-up control, the microprocessor 110 first instructs the reverse rotation energization of the motor 11 to the transistor circuit 250 of the motor driver (step S2).
4).

This is done by setting L to output port 0 ₀ and H to 0 ₇ .

The tilt-up instruction can be read only in modes IV and III. The panel 23 by the reverse rotation of the motor 11
Is driven toward the fully open tilt (tilt up completion: FIG. 11a).

The tilt-up control ends when the motor is overloaded in mode IV, but an excessive starting current flows when the motor 11 is started, and if this is detected as an overload, the motor cannot be driven. 110 is
The timer ts is set (step S25), the time is waited for (step S26), and when the time is over, the open / closed states of the limit switches 200a, 200b are read and the mode data [A, B] are set in step S27. , Read input port I ₂₂ of the open / close instruction switch in step S28
Set the state of ~I ₂₇ to switch the reading register, it clears the detection set flag referenced in later-described overload detection.

ts is the time from the start of the motor energization until the starting current subsides and the motor becomes a load for driving the panel. When the time is over, the motor 11 finishes starting and the current is low, and the panel drive value is reached. stable.

Next, in step S29, the microprocessor 110 reads from the contents of the switch reading register whether or not the switches other than SWU are closed, and if Yes (switches other than SWU are closed), the motor 11 is stopped in step S30. Is set and the process returns to step S3.

If NO (switches other than SWU open), refer to whether or not the contents of the mode register [A, B] indicate mode IV (step S32). If not mode IV, Since it is not necessary to detect the tilt-up completion yet, the process returns to step S27 to continue the reverse rotation energization of the motor 11,
Repeat the mode reading and the status reading of the open / close instruction switch.

If it is in mode IV, overload detection (details are shown in FIG. 16j and will be described later) is performed in step S33, and if it is overload, the tilt-up has been completed, so the motor is stopped in step S30. move on. If no overload is detected, the process proceeds to step S37. In step S37, open,
Read the status of the close instruction switch. Next, it is read whether or not the switches other than SWU are closed (S38), and if the switches other than SWU are closed, the motor 11 of step S30 is read.
Go to stop, otherwise set timer dt (s34)
Return to. After that, returning to step S33, overload detection is performed. When the overload is detected, the motor 11 is stopped (S3
Go to 0).

With the above tilt-up control, when the tilt-up instruction switch is temporarily closed in mode IV or III, the motor 11 is biased in the reverse direction and then switches other than the SWU are closed, or the panel 23 is closed. The reverse rotation of the motor 11 is continued until the tilt-up is completed.

Next, the slide opening control will be described with reference to FIG. 16d.
When the slide open control is performed, the microprocessor 110
First instructs the forward rotation bias of the motor 11 to the transistor circuit 250 of the motor driver (step S39).

This is done by setting H at output port 0 ₀ and L at 0 ₇ . The instruction to open the slide can be read only in III to I. By the normal rotation of the motor 11, the panel 23 is driven toward the fully open slide (Fig. 11d). Then, the slide opening control ends when the motor is overloaded in mode I (more accurately, mode IC). However, when an excessive starting current flows at the time of starting the motor 11, if this is detected as an overload, the motor is overloaded. Since it cannot be driven, the microprocessor 110 sets the timer ts (step S40), waits for its time out (step S41), and when the time is over, reads the open / closed state of the limit switches 200a, 200b in step S42. The mode data [A, B] is set, and the states of the read input ports I _{22 to} I ₂₇ of the open / close instruction switch are set in the switch read register in step S43, and the detection set flag referred to in overload detection described later is set. clear.

The microprocessor 110 then reads in step S44 from the contents of the switch read register whether the SWMO is closed or not, and if No (SWMO is open), sets the motor 11 stop output in step S45, Return to S3.

If Yes (SWMO is closed), refer to whether the contents of the mode register [A, B] indicate mode I.
(Step S47) If the mode I is not set, it is not necessary to detect the slide fully open state. Therefore, the process returns to step S42, the forward rotation bias of the motor 11 is continued, and the mode reading and the state reading of the open / close instruction switch are read. repeat.

If the mode I is set, the overload is detected in step S48. If an overload is detected here, since the panel is fully open, the process proceeds to step 45, where the motor is stopped. If no overload is detected, the process proceeds to step S52. In step S52, the state of the open / close instruction switch is read, and SWMO
Read whether is still closed (S53), SW
If the MO is open, the motor 11 is stopped in step S45. If not, the process returns to the overload detection in step S48.
After that, whether SWMO is detected in step S48 or not
It goes around S48-S52-S53-S48 until it turns off. When the load becomes excessive, the motor 11 is stopped (S4
Proceed to 5).

With the above slide opening control, when the manual slide opening instruction switch SWMO is closed in the modes III to I, the motor 11 is normally biased only while it is closed, and when the SWMO returns to open, or When the panel 23 slides to the full open position (Fig. 11d) while is closed, the motor 11 is stopped.

Next, the slide fully open control will be described with reference to FIG. 16e. This slide full-open control is almost the same as the slide open control described above, but the automatic slide full-open instruction switch SWO is used.
Is temporarily closed, the forward rotation of the motor 11 for opening the panel 23 is started, and thereafter, overload (full open) is detected in Mode I, or an open / close instruction other than SWO is issued. The difference is that the forward rotation bias of the motor 11 is continued until the switch is closed. Another difference is that when the SWO is opened and then that switch or another switch is closed again, the motor is stopped there. In FIG. 16e, the step corresponding to the step in FIG. 16d is marked with a symbol (for example, S39A) obtained by further adding A to the step symbol (for example, S39) in FIG. 16d. The flow of FIG. 16e is different from the flow of FIG. 16d only in steps S44A and S53A.

In step S44A, it is determined whether or not the switch SWO has been closed once and then returned to the open state. If the switch SWO has not been returned to the open state (there is an ON flag), the switches SWO and SWO are determined.
When the opening and closing of C is read, the on flag is cleared when both are open, and the on flag is left as it is when one is still closed. Then, if there is an on-flag, the switch SWO is closed once to set the on-flag (16th
(S10a or S12a in the figure) Since the switch SWO has not been completely opened yet, the other switches SWD, SW
It is checked whether U, SWC or SWMC is on. If it is on, the motor 11 is stopped. If there is no on-flag, SWO has already closed and then returned to open, so all switches SWD, SWU, SWC, SWMC,
Referring to the opening and closing of SWO and SWMO, if any one of them is closed, the process proceeds to motor stop.

In addition, SWMO is used to determine whether SWO is open.
As shown in FIG. 15, when the switch SWO is closed, the switch SWMO is closed first, and when the switch SWO is returned to the open position, SW is also referred to.
Since the SWMO is opened after the O is opened, it is considered that the SWO is opened when both the SWO and the SWMO are opened.

An unintended switch is operated by the switch opening / closing reading in step S44A described above and the motor stop control at the time of closing the other switch while SWO is closed or at the time of operating the switch again after SWO is once opened. when the switch operation again in a hurry after, as well as, once was the desired switch operation, urgent when you operate any of the switch to the such as stop, in other words at the time of emergency or correction at the time of the switch operation, the motor Is stopped. When the motor is stopped, the process proceeds to the next step of initialization shown in FIG. 16a, and the control corresponding to the newly operated switch is started this time.

As described above, this slide fully-open control allows Mode III
When the switch SWO is temporarily closed by ~ I, the forward rotation bias of the motor 11 that opens the panel 23 is started, and thereafter, in Mode I, whether overload (full open) is detected, Alternatively, the motor 1 is operated until the switch is changed.
The forward rotation bias of 1 is continued, the slide fully open drive is started by the one-touch switch operation, and if the switch operation is not performed again, the motor 1 is operated when the panel 23 is fully opened.
1 automatically stops.

The tilt-up control (FIG. 16c), the slide opening control (FIG. 16d), and the slide fully opening control (first) explained above.
In Fig. 6e), the overload detection and the motor stop control at the time of overload are performed, but these are designed and designed, and it is detected that the panel 23 has reached a predetermined position (up complete, slide fully open). , I'm doing so to stop the motor there. That is, the limit switch is omitted, and the fixed position stop control is performed by these overload detection / stop controls.

Next, the slide closing control will be described with reference to FIG. 16f. When the panel 23 is driven to slide and close, obstruction of the closing slide (abnormal load) may occur.
In order to prevent such a phenomenon, in the slide close control and the slide full close control described below, load detection is performed during slide close driving in mode I (more accurately, mode IC and mode IA), and an overload is detected. Panel 23
After stopping temporarily, the panel 23 is opened to the opposite side to open it for a safety stop to completely stop the panel 23, and the panel 23 is opened at about 10 cm before it is fully closed (Fig. 11b). I am trying to pause 23.

When proceeding to the slide closing control, the microprocessor 110
First, the reverse rotation bias of the motor 11 is instructed to the transistor circuit 250 of the motor driver (step S54).

This is done by setting L to output port 0 ₀ and H to 0 ₇ .

The slide closing instruction can be read only in modes I and II.

Due to the reverse rotation of the motor 11, the panel 23 is fully closed (No. 11b
Drive toward).

The slide closing control is performed when the switch SWMC is opened, when the mode is changed from II to III, or when the overload is monitored during steady closing drive, and the motor is stopped once when overload is detected. After a predetermined short time, the motor is stopped and ended. However, when the motor 11 is started, an excessive starting current flows, and if this is detected as an overload, the motor cannot be driven.

Therefore, the microprocessor 110 sets the timer ts (step S55) and waits for the time-out (step S56).

When the time is over, the contents of the mode register [A, B] are changed to the previous mode register [A ₀ , B ₀ ] in step S57.
Set to. Then, in step S58, the open / closed states of the limit switches 200a and 200b are read and updated and set in the mode register [A, B].

Next, open at step S59, the set state of the input port I ₂₂ ~I ₂₇ of closing command switches the switch read register, clears the detection set flag referenced in later-described overload detection.

Next, in step S60, the microprocessor 110 refers to the contents of the mode register [A, B] to see if it is mode III. If it is mode III, the process proceeds to step S89 (Fig. 16g) to stop the motor 11. And Mode II
If not I, in step S61 the contents of the switch read register are referenced to read whether the SWMC is closed, and No (SWM
If C is closed), the process proceeds to step S89 to stop the motor 11. If Yes (open), the process proceeds to step S62 to refer to the contents of the previous mode register [A ₀ , B ₀ ]. If the contents of the previous mode register [A ₀ , B ₀ ] are not [L, L], the previous mode is IB or II (because it may be necessary to switch to mode IA and pause), Next, in mode III, since it may be necessary to stop the motor, the process proceeds to step S79 in FIG. 16g. If the content of the previous mode register is [L, L] (if the previous mode is IC or IA), the content of the mode register [A, B] is referred to in step S63, and that is [L, L].
If so, the overload detection is executed in step S64. If the overload is detected by this, the overload flag is set in step S14, and the process is stopped in step S68. If no overload is detected, the process proceeds to step S74 shown in FIG. 16g.

When the motor 11 is stopped due to overload, the microprocessor 110 next sets the timer ts (S69) and waits for the time to expire (S70).
The forward rotation bias of 1 (slide open) is output and set (S7
1) Further, the timer at is set (S72) and the time-out is waited (S73). When the time is over, the motor 11 is stopped in step S89 shown in FIG. 16g, and then the process returns to step S3 in FIG. 16a.

By the above control of overload detection-motor stop-motor forward rotation-motor stop, when the overload is equal to or more than the steady load that normally slides and closes the panel 23 during the slide close drive in the mode IC and IA, the motor is After the motor 11 is stopped once and the movement of the panel 23 is stopped, the motor 11 is forwardly biased for a predetermined time at and the panel 23 is slightly opened.
After that, the motor 11 is stopped.

When returning to step S3, since the overload flag is set, if any of the switches except SWD is operated again, steps S7b and S10 shown in FIG. 16a are performed.
From b, S11b, S12c, S13b, S14d or S15b, see FIG. 16k, FIG. 16l or FIG.
Proceed to the overload manual response drive control shown in FIG.

In this manual response drive control, the motor is rotationally energized in the direction corresponding to the operation switch only after the switch is continuously closed for 10 seconds, the overload is not detected, and the motor is energized only while the switch is closed. Continues, and the energization of the motor is stopped at the same time when the switch is opened.

Therefore, when the panel is abnormally stopped due to an overload by the slide closing control (Fig. 16f) or the slide fully closing control (Fig. 16g) described later (steps S64 to S73 or S64).
A to S73A), the overload flag is set, the panel stops in modes III to I, and then the switch SW.
The driving of the panel is started only when U, SWO, SWMO, SWC or SWMC is continuously closed for 10 seconds or more, and the panel is stopped immediately when the operated switch is returned to the open state.

In this way, after stopping the panel due to abnormal overload, it starts driving the panel in response to a long-time switch-on, and when the switch is turned off, the panel is stopped immediately even if the load increases. If yes, it is for enabling the panel drive with the operator's safety confirmation.

By the way, if the overload is not detected in step S69 and the process proceeds to step S74 of FIG.
Reads the open / closed state of the limit switches 200a, 200b and sets them in the mode register [A, B], and at the next step S
At 75, the state of the open / close instruction switch is read and set in the switch reading register. Next, in step S76, refer to the opening and closing of the switch SWMC, and if it is open, the process proceeds to step S89 to stop the motor 11. Since it is instructed to close the slide when it is closed, it is referred to in step S77 whether or not the contents of the mode register indicate IB and II. It does not indicate this (that is, mode IC, I
A) and the process returns to step S65 of FIG. 16f. IB, II
Timer dt is set to indicate that (S79),
Wait for time-out (S80), and when time-out occurs, open limit switches 200a and 200b again in step S81.
Read the closed state and set it in the mode register [A, B],
In the next step S82, the state of the open / close instruction switch is read and set in the switch reading register. Then step S
At 83, it is referred to whether the switch SWMC is open or closed. If it is open, the process proceeds to step S89 to stop the motor 11. Since it is instructed to close the slide if it is closed, step S
At 84, it is referred to whether or not the contents of the mode register indicate IA. Unless this is shown, Mode III
(S88), and see if it indicates mode III
If so, the process proceeds to step S89 to stop the motor 11. If neither mode III nor mode II or IB, the process returns to step S79.

If the mode is IA [L, L] in step S84, the mode IB is detected in step S77, and the mode IA is detected in step S84 this time.
Since 3 has reached 10 cm before fully closed, the motor 11 is stopped in step S85, but SWM
Since C is closed, the panel is also driven to be closed, and seemingly continuously driven to be closed.

The slide closing control described above (Figs. 16f, 16g).
As a result, if the panel 23 is fully opened (FIG. 11d) (mode IC) and the SWMC is closed, and the closing is continued, the reverse rotation of the motor 11 is started and the panel 23 is closed. It starts moving in the fully closed direction, and overload detection is started ts after the start of reverse rotation. In the mode IB, overload detection is not performed. When the mode IB is switched to the mode IA, the motor 11 is stopped.
Since the WMC is closed, the reverse rotation of the motor 11 is started again. Overload detection is started again ts after this start. When the mode IA is changed to the mode II, the overload is not detected. That is, mode II is the mask section. Mode II
From mode to mode III (slide fully closed),
The motor 11 is stopped.

When an overload is detected during the above-described overload detection, the motor 11 is temporarily stopped, then forwardly energized during at, the panel 23 is slightly opened, and then stopped. In mode II, the panel 23 hits the weather strip and the motor load increases, so that overload detection is not performed. Mode IB
Is represented by the same status signal as in mode I,
Even in B, overload detection is not performed. The amount of movement of the panel 23 in mode IB is negligible. That is, the groove 20c is extremely short. When the switch SWMC is opened, the motor 11 is stopped immediately.

Next, the slide fully closed control will be described with reference to FIGS. 16h and 16i. This slide full-close control is almost the same as the above-mentioned slide close control, but when the automatic slide full-close instruction switch SWC is temporarily closed, the forward rotation bias of the motor 11 for sliding the panel 23 is started, After that, the mode 11 is continued or the reverse rotation of the motor 11 is continued until another switch or the SWC is closed again, and when the SWC is closed again or the other switch is closed there. The difference is that the panel 23 is stopped once, and then the panel is driven to open during at and stopped there.

In FIGS. 16h and 16i, steps corresponding to those in FIGS. 16f and 16g are marked with the same numerical symbols with an additional A added. In the flow of FIG. 16h and FIG. 16i, FIG.
The difference from the flow of FIG. 6g is steps S61A and S76.
In A and S83A, when the switches other than the switch SWC are closed, or when the SWC returns to open and then closes again, the motor is stopped for an emergency stop, and then the panel 23 is driven to open during at. The point is to stop the motor. Therefore, when the switch SWC is temporarily closed in the modes IA, IC by this slide full-close control, the motor 11 reverse rotation energization for fully closing the panel 23 is started, and thereafter, the mode IC, Whether overload is detected in IA, mode III, or SW
Until the open / close command switches other than C are closed, or the SWC is returned to open and closed again, the reverse rotation of the motor 11 is continued, and the slide full-close drive is started by one-touch switch operation, resulting in an overload. Without further operation of the switch again, the motor 11 automatically stops when the panel 23 is fully closed.

In the slide closing control (Fig. 16g) described above, the SWMC continues to be closed even if the motor is temporarily stopped 10 cm before the full closing, so the panel closing drive continues, but the slide closing control (Fig. In Fig. 16h and Fig. 16i), the motor is stopped 10 cm before and the switch SWC is opened (one-action response control, so the normal switch S
The WC is only momentarily closed) The panel remains stopped. Therefore, if the switch SWC is closed again for a moment, S14a-S14b-S14c in FIG.
After-S14d, the process proceeds to the slide fully closing control of FIG. 16h, the urging of the motor is restarted, and the panel is driven to close.
This closing drive continues automatically until an overload is detected in mode IA, mode III is entered, or a switch other than SWC is closed, or SWC is returned to open and closed again. As described above, the temporary stop in the slide full-close mode in which the drive is automatically performed to the full-close with one touch is for alerting the operator there. Even if you stop
When the automatic slide fully closed instruction switch SWC is closed again, it is automatically closed completely.

Among the various controls described above, steps S33, S48, S48
The overload detection logic and the overload detection control of A, S64, and S64A are the same, and only the content of the allowable value ΔL is different.

FIG. 16j shows the details of overload detection. When proceeding to the overload detection step, the microprocessor 110 refers to the detection set flag (S90), and if there is not it, it means that the overload detection is started for the first time, so the detection set flag is set (S91) and the motor current is set. Read Vs (S9
2). Next, registers Vsm and Vsp for holding the average value
Vs is stored in o (S93), and Vr = Vs + ΔL / 2 is stored in the register Vr for holding the overload reference value. If Vr is the initial value of the reference value and Vs is the point A in FIG. 17b, this initial value Vr is the point B, which is higher than the point A by ΔL / 2.

Next, the contents of the pitch counter (program counter) that determines the cycle for calculating the load change rate are cleared (set to 0), and the gradient register Kr for holding the calculated load change rate Ks is cleared (0 is stored in the memory). ) (S95), and a timer ddt for setting the load value sampling period for calculating the average value is set (S96). ddt is a time limit value, and this value determines the sampling period. When the timer ddt is set, the main routine is executed in the output loop without overload (for example, step S32 in FIG. 16c).
When entering from, the process returns to step S37). When the overload detection is returned (advanced) from the main routine (eg, S32) again, since the detection set flag is present this time, the process proceeds to step S97, and it is referred to whether or not the timer ddt has timed out. If not, the process returns to the main routine (S37). When the time-out of the timer ddt is detected in step S97 during the loop, the motor current Vs is read (S98) and the average value Vsp is calculated (S98) because the sampling period ddt has elapsed. . In order to obtain the average value (smooth value) of the four sampling values as the load detection, the average value Vsp is calculated by the calculation of Vsp = (Vs + 3Vsm) / 4 (Vsm is the content of the register Vsm and the average value calculated last time). .

The obtained average value Vsp is updated and stored in the register Vsm (S1
00), the pitch counter is incremented by 1 (S1
01). Here, it is referred to whether or not the content of the pitch counter has reached 4 (S102), and if it is not 4, the overload determination timing (4 times the load value sampling period ddt) has not yet come, so the timer is restarted. Set (S9
6) To the main routine (for example, when the overload detection is started from step S32 in FIG. 16c, step S32).
Return to 37). The process proceeds from the main routine (eg, S32) to overload detection again, and if the timer ddt has not timed out in S97, the process returns to the main routine. This loop is repeated until the time is over, and when the time is over, the process proceeds from step S97 to S98, and thereafter, the load value is read, the average value is updated, the update memory to the register Vsm and the pitch counter are counted up. Then, in step S101, the contents of the counter are referred to, and it is 4
If it is, the pitch counter is cleared (set to 0), the timer ddt is set again (S103), and the load change rate Ks is calculated (S104). This calculation is ks = (Vsp + Vspo) / 4ddt, where Vsp is the value updated and stored in the average value register Vsm in step S100, and Vspo is 4ddt.
This is the value previously stored in the register Vspo (the average load value when the previous change rate calculation & overload determination was made).

Next, referring to the change rate Ks (S105), Ks is larger than 0 (for example, (i) and (iv) tail of FIG. 17b).
Then, since the load is increasing, the gradient register Kr = Ks /
2 is stored (S106), and the overload reference value Vr + 4dd
t · Kr is calculated and updated and stored in the register Vr, and Vsp is stored in the register Vspo (S107).

In Vr + 4ddt · Kr, Vr is the value stored in the register Vr by that time (the previously calculated overload reference value)
And Kr is the value stored in the register Kr this time.
From the above, the load value this time is stored in the average value Vsm,
The load change rate detected this time is stored in the register Kr,
Further, the overload reference value calculated this time is stored in the register Vr.

Next, the contents of the register Vr (overload reference value) and the contents of the average value register Vsm (load value) are compared (S108). If the latter is more than the former, it is an overload, so the motor of the main routine is stopped ( For example, if the overload detection is performed in the flow of FIG. 16c, the process proceeds to step S30). If the latter is less than the former, the allowable maximum load value Lmax, which is a fixed value, is compared with the content (load value) of the average value register Vsm (S109). If the latter is more than the former, it is abnormal. Proceed to the motor stop of the main routine. When the content (load value) of the average value register Vsm is less than the overload reference value and less than Lmax, the process returns to the main routine.

Now, in step S105, the change rate Ks of the load is 0 or less (the load is constant or decreasing: (i in FIG. 17b).
i), (iii) and (iv) first half), and in step S110,
Value obtained by subtracting the load value from the overload reference value (Vr + 4ddt
· Kr) -Vsp, which is greater than 0 and ΔL / 2
If it is within the smaller range [(ii) and (iii) in FIG. 17b], the process directly proceeds to step S107 to calculate the overload reference value of this time, and register Vr. To memory. Then, overload determination (S108,
Go to 109). In this case, Kr is the previous reference value change rate stored in the register Kr, and the change rate of the overload reference value is not changed this time.

Value obtained by subtracting the load value from the overload reference value (Vr + 4ddt
When referring to (Kr) -Vsp, if it is not in the range larger than 0 and smaller than ΔL / 2, step S1
Proceed to 11, and (Vr + 4ddt · Kr) −Vsp is ΔL /
See if it is greater than or equal to 2.

If ΔL / 2 or more (boundary points of (ii) and (iii) in FIG. 17b and the first half of (iv)), Kr = Ks is updated and stored in the gradient register Kr (S112), and the process proceeds to step S107.
In this case, the overload reference value is calculated using the same change rate Kr as the load change rate Ks. And overload judgment (S10
8, S109). When it is less than ΔL / 2, the process directly proceeds to step S107 to calculate the current overload reference value and store it in the register Vr. Then, the process proceeds to overload determination (S108, 109). In this case, Kr is the previous reference value change rate stored in the register Kr, and the change rate of the overload reference value is not changed this time.

The load increases within the allowable range ΔL by the average value calculation of the detected load, the change rate calculation of the detected load, the change rate calculation setting of the overload reference value, the calculation of the overload reference value, and the overload determination described above. , When the load is decreasing, the overload reference value also fluctuates while keeping a level that is approximately ΔL / 2 higher than the load value, and when the load continuously increases, at a rate of change of half that rate. When the overload reference value also increases and the load reaches the overload reference value, that is, the load has an initial value Va (point A in FIG. 17a).
When the value becomes a value obtained by adding ΔL to, the “overload” is detected and the motor 11 is stopped. The rate of change of the overload reference value when the load increases is the value obtained by multiplying the rate of change of the load by a (0 <a <1, a = 1/2 in the above example). When the load is normal, refer to the load and the overload. Since the difference from the value is maintained at approximately aΔL, “overload” is detected at a substantially constant load value and the motor is stopped, regardless of the rising gradient of the load. Therefore, the problem that the load value detected as "overload" varies greatly depending on the hardness of the obstacle that obstructs the movement of the panel is solved.

In the conventional delay circuit of the overload detection circuit disclosed in, for example, Japanese Patent Application No. 58-035870, the rising of the detection load is delayed,
Although the fall is not delayed, when an analog delay circuit of this type is used, the delay time constant is fixed, so even if there is an overload, closing the sunroof is a relatively hard obstacle. When disturbed, the load increases rapidly as shown in FIG. 17a, and the load (motor current) reaches the overload detection reference value level at a relatively early point, and overload is detected. Although an overload will be detected at a relatively low overload value, for example, when a relatively soft obstacle obstructs the closing of the sunroof,
As shown in (a) of the figure, since the increase of the load is gentle, the overload is detected at a late point from the rise of the load, and the overload is detected at a relatively high overload value. This means that the load value detected as "overload" will vary depending on the hardness of the obstacle, and it is sufficient for the intended purpose of detecting any overload as an overload with a predetermined value. is not. However, in the overload detection of the above-described embodiment, the overload is detected with a substantially constant load.

The main points of the control operation of the embodiment described above are summarized as follows.

(1) Switch SW for opening mode IA or IC
In response to the momentary closing of C, the panel 23 is automatically driven until it is completely closed, and the mode IC and IA detect the overload. When the overload is detected, the drive of the panel 23 is stopped. Since it is a mask section, overload detection and stop during overload are not performed. Therefore switch 20
If the same mode signal as in mode II is generated in modes IA, IB, etc. due to disconnection, short circuit, etc. of 0a, 200b or the lead or electric circuit connected thereto, overload detection and protection operation will not be performed.

Therefore, when the SWC is closed, as shown in FIG. 16a, it is checked whether the panel 23 is in the mode II or not, and in the mode II, steps S14c to S1.
5b, the operation proceeds to the dual operation slide closing control (FIG. 16f) in which the panel 23 is driven to be closed only while the SWMC is closed. As shown in FIG. 15, since the SWMC is closed immediately before the switch SWC is closed, the slide closing drive only during the closing of the SWC is similar to the slide closing drive during the closing of the SWMC. . However, in this case, the mode signal (opening signal) from the switches 200a and 200b
Since it indicates II (or IB), it does not proceed to the overload detection step of step S64 shown in FIG. 16f.
That is, when the signal indicating the opening degree of the panel 23 indicates the mode II, the automatic slide fully closing instruction switch SWC
Is closed, the slide close drive is driven only while it is closed,
When it opens (condition that SWMC also opens), the panel 23 is stopped there. Thereby, for example, even if the switch SWC is momentarily closed when the switch 200a is welded and the same opening signal as in the mode II is generated in the mode IA or the IC, the panel 23 is not substantially automatically and fully closed.
It is closed only while the switch SWC or SWMC is closed. As a result, when the opening signal is abnormal, the abnormal drive such that the panel is driven to close without overload detection until the end in response to the momentary closing of the automatic slide fully closing instruction switch SWC does not occur.

It should be noted that when the SWC is closed when the panel 23 is at the opening of the mode IB, the closing drive of the manual response is similarly performed, but the mode IB is a very short section, and the mode is passed after this section. When it becomes IA, it stops there, so there is no particular problem even if the overload detection protection operation is not performed in mode IB.

(2) In the one-touch automatic opening control (FIG. 16e) in which the automatic slide fully open instruction switch SWO is closed for a moment to automatically open the panel 23 until the slide is fully opened,
In steps S44A and S53A, the switch S
When the WO returns to open and then closes again, or another switch closes, the panel 23 is stopped there. Then, returning to FIG. 16a, the control corresponding to the newly closed switch is started.

Therefore, when the switch operation is mistakenly performed again,
And, in the case of an emergency stop, a switch different from the switch operated the first time may be closed. If the switch that was closed later is SWD, it will only respond in mode IV, so the panel will remain stopped. If the switch that was closed later is SWU, the panel is driven up only if it is closed in mode III.

When the SWO is operated again, the panel 23 is driven to open until it is fully opened. If the switch that is closed later is SWMO, the panel 23 is driven to slide open only while the switch is closed. When the switch that is closed later is SWC, automatic driving until the slide is fully closed is started. If the switch closed later is SWMC, the slide closing drive is started during the switch closing until the slide is fully closed.

As described above, when the switch that is closed first is SWO, when the switch is newly closed, the motor 11 is stopped once, and then the panel is driven according to the instruction of the newly closed switch. Since the SWO is the automatic full-open instruction switch, it is possible to prevent the object from jamming in the panel 23 when the panel 23 is fully opened, and the subsequent switch re-operation is to be redone. This is because the probability is high, and there is no problem even if the control according to the newly operated switch is started.

On the other hand, in the one-touch automatic closing control (FIG. 16e) in which the automatic slide fully closing instruction switch SWC is momentarily closed to automatically close the panel 23 until the slide is fully closed (FIG. 16e), steps S61A, S71A and S83A are performed. ,
When the switch is re-operated, as in the case of the abnormal overload detection, the fully closed driving of the panel 23 is stopped, and then the panel 23 is driven to be opened for a short period of time at the panel 23.
Is stopped and the process returns to the flow of FIG. 16a. As a result, when the switch is operated again, whichever switch is newly operated, the panel 23 is stopped first, and then is opened and stopped a little, and the switch is closed after the stop. In the state, the control corresponding to the switch which is still closed is started according to the flow shown in FIG. 16a. If the re-operation switch is returned to the open state by the time the opening drive of the panel 23 is slightly finished, that is, if the re-operation is one-touch, there is no switch that is closed when the flow returns to the flow of FIG. 16a. Therefore, the panel 23 remains stopped.

As described above, when the switch is re-operated during the automatic slide fully-closed drive, not only the panel 23 is stopped once, but the panel 23 is driven a little further to stop again.
In the automatic slide fully-closed drive, an object may be sandwiched between the panel 23 and the window frame, and it may be necessary to stop urgently. This is for safety in this case. After the switch SWC is closed with one touch and returned to open, when any of the switches is closed with one touch and returned to open, the panel 23 is once stopped by the slide closing drive and then stopped by being slightly opened by the slide drive. , Then, it remains stopped until the switch is operated.

(3) If an overload is detected in step S64 in the slide closing control (Fig. 16f), and if an overload is detected in step S64A in the slide fully closing control (Fig. 16h), both are abnormal Since it is a load, the overload flag is set, the panel 23 is stopped once, and a little later opened to stop. Then, returning to the flow of FIG. 16a, when a certain switch is closed when or after returning to this, there is an overload flag.
Proceed to the overload manual response drive shown in Fig. 16, Fig. 16l or Fig. 16m, and in any case, the switch is continuously closed for 10 seconds, that is, the switch is continuously closed for 10 seconds. For the first time, the panel drive is started and the open / close drive corresponding to the switch is performed only while the switch is closed, and the overload detection is not performed in the open / close drive.

Therefore, after the panel 23 is stopped due to abnormal overload,
Holding the switch for 10 seconds will energize the motor. In a state where the panel drive mechanism can move, such as an overload due to freezing or an overload due to the trapping of sand grains, etc., where it can move with a strong force (light abnormality), the panel is driven by this motor bias and the switch opens. Stop when it becomes.
When the panel drive mechanism cannot move, for example, when the mechanism cannot be moved by a strong force such as damage (serious abnormality), the panel 23 does not move even if the motor is energized, but the operator returns the switch to the open state. And the motor energization stops.

Therefore, the forced driving of the panel drive mechanism can be tried under the operator's supervision, and in the case of a slight abnormality, the panel can be driven to a predetermined position for the time being, and thereafter, inspection, foreign matter removal, repair, etc. can be performed. In the case of a serious abnormality, the panel position must be left as it is and repairs must be performed.

(4) Panel full-close drive in response to the momentary closing of the automatic slide fully-close instruction switch SWC (Figs. 16h and 16i)
At the opening that is safe even if you pinch an object (10 cm before fully closed)
Then, the panel is temporarily stopped, the process returns to the flow shown in FIG. 16a, and the panel is driven to be fully closed in response to the momentary closing of the switch SWC. Therefore, even with the one-touch automatic full-closed drive, the operator's attention is evoked during the temporary stop, and an abnormality such as pinching an object between the panel and the window frame is unlikely to occur. In addition, since the operation instruction for the fully closed drive can be given by one-touch operation of the automatic slide fully closed instruction switch SWC when the operation is temporarily stopped, the operability is not particularly impaired.

〔The invention's effect〕

Operator's one-touch auto slide closing instruction switch
(SWC) is closed for a moment, and after this, the slide closing automatic drive is started, then the object is caught in the opening covering material and the operator rushes to the one-touch automatic slide closing instruction switch (SWC)
When is pressed, the slide closing automatic drive is stopped and the opening covering is automatically opened, so that the situation of pinching the object is immediately stopped, and even if the pinching is already performed to some extent, it is released.

In addition, if the operator momentarily closes the one-touch automatic slide close instruction switch (SWC), and the slide close automatic drive is started by this, an object is pinched by the opening covering material and the operator does not recognize this, When the motor load reaches the overload reference value, that is, when the object is clamped to some extent, the slide closing automatic drive is stopped and the opening covering is automatically opened, so that the serious clamping of the object is prevented. It is released even if it has been evaded and already clamped to some extent.

Furthermore, the operator momentarily closes the one-touch automatic slide close instruction switch (SWC), and after this starts the slide close automatic drive, an object is caught in the opening covering material and the operator rushes to another switch (SWO SWMO or When SWMC) is pressed, the situation of pinching the object is immediately stopped, and even if it is already pinched to some extent, it is released. For example, when the operator rolls over and hits the operation board, which causes one of the switches (SWO SWMO or SWMC) to be operated, the slide closing drive stops there and the opening covering moves in the opposite direction, that is, in the direction to open the opening. It is driven and has high performance to deal with emergencies.

[Brief description of drawings]

FIG. 1 is a perspective view showing a panel drive mechanism of an embodiment of the present invention, and shows an outline of an opening / closing mechanism of a sunroof panel mounted on a roof of an automobile. 2 and 3 are enlarged side views showing a mechanism for supporting the front portion of the panel 23. FIG. 2 shows a fully closed state, and FIG. 3 shows a slide opened state. FIG. 4 is an enlarged side view showing a mechanism for supporting the rear portion of the panel 23. FIG. 5 corresponds to a section taken along line IX-IX in FIG. 1, but is a sectional view showing a state where the panel is fully closed. FIG. 6 is a sectional view taken along line VI-VI in FIG. FIG. 7 corresponds to a section taken along line IX-IX in FIG. 1, but is a sectional view showing a state in which the panel is slightly lowered due to slide opening. FIG. 8 corresponds to a section taken along line IX-IX in FIG. 1, but is a sectional view showing a state in which the panel is slightly lowered and further slid open. FIG. 9 is a sectional view taken along line IX-IX in FIG. 1 and is a sectional view showing a state in which the panel is slightly tilted up. FIG. 10 corresponds to a section taken along line IX-IX in FIG. 1, but is a sectional view showing a state in which the panel is completely tilted up. FIG. 11a is a side view schematically showing a state in which the panel has completed the tilt-up, FIG. 11b is a schematic side view showing a fully closed state of the panel, and FIG. 11c shows a state in which the panel is lowered to enter the slide open state. Schematic side view, FIG. 11d is a schematic side view when the panel is fully opened. FIG. 12a is an enlarged plan view of the cable drive mechanism,
A part is shown broken. Figure 12b shows XIIB in Figure 12a.
-XIIB line sectional drawing, FIG. 13 is an exploded perspective view of the rotating shaft 15 shown in FIG. 12b. FIG. 14 shows the cam 20 shown in FIGS. 12a and 12b.
And the limit switches 200a and 200b in the panel open / closed state, the rotation of the cam 20 and the limit switch 200
It is explanatory drawing which shows opening and closing of a and 200b. FIG. 15 is a circuit diagram showing an electric circuit for energizing the panel opening / closing drive motor in response to an operation mode signal according to opening / closing of the limit switches 200a and 200b, and according to operation of an opening / closing instruction switch. is there. 16a to 16m are flow charts showing the control operation of the microprocessor 110 of the electric circuit. FIG. 17a is a graph showing overload detection timing by the conventional overload protection device, and FIG. 17b is a graph showing overload detection timing in one embodiment of the present invention. Reference numeral of mechanical element 9: reducer, 10,14 _{2 to} 14 ₅ : gear 11: electric motor, 14: worm 15,17,18: rotating shaft, 19: eccentric bearing 20: cam, 20a to 20c: groove 21: Roof, 22: Opening 23: Roof panel (opening covering material) 24,25: Drive cable, 26: Bracket 28: Front guide, 29: Front shoe 36: Guide slot, 39: Guide link 41: Riashiyou, 43: Guide Pin 44: Guide rail, 45: Block 47: Inclined groove, 52: Stopper piece 201: Planetary gear, 210: Casing internal tooth 202: Pin 200a, 200b: Limit switch (opening detection means) Electrical circuit element code 110: Microprocessor (Open / close control means) 231,232: Relay contact piece, 233,234: Relay coil 240: Resistor (means for detecting load) 230,250: Motor driver SWMO, SWO, SWMC, SWC, SWD, SWU: Open / close instruction switch ( SWC:
One-touch slide fully closed instruction switch) 260: Filter circuit, 270: Amplifier circuit 290: Power-on reset circuit 310: Constant voltage circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Matsuzaki 1 Toyota-cho, Toyota-shi, Aichi Toyota Motor Corporation (56) Reference JP-A-57-29112 (JP, A) JP-A-58-43823 (JP, A) JP 59-23727 (JP, A) Actual development 58-112135 (JP, U) JP 54-42129 (JP, B2)

Claims (1)

[Claims] 1. An electric drive mechanism comprising an electric motor and an opening / closing mechanism for opening / closing driving an opening covering member according to forward / reverse rotation of the electric motor; a motor driver for urging the electric motor forward / reverse rotation; an open / closed state of the opening / closing mechanism. Opening detection means for generating an opening signal indicating that the opening / closing instruction switch means including a one-touch automatic slide closing instruction switch for instructing opening / closing of the opening cover member; load detection for detecting the load of the opening / closing mechanism Means for comparing the load detected by the load detecting means with an overload reference value to detect presence or absence of overload, and set overload presence information when detecting presence of overload; The forward / reverse drive and stop of the electric motor are determined by referring to the instruction of the open / close instruction switch means and the presence / absence of the overload presence information, and a signal instructing this is determined by the motor drive. Opening / closing control means for giving to the one-touch automatic slide closing instruction switch after the closing instruction by the one-touch automatic slide closing instruction switch disappears during driving of the opening covering material corresponding to the closing instruction by the one-touch automatic slide closing instruction switch. First protection control means for stopping the drive of the electric motor and giving a signal to the motor driver to drive the electric motor in a direction to open the opening covering in response to a reclosing instruction from the switch; A direction in which the driving of the electric motor is stopped and the opening cover is opened in response to the detection of an overload by the overload detection unit during the driving of the opening cover corresponding to the closing instruction by the automatic slide closing instruction switch. Second protection control means for giving to the motor driver a signal instructing to drive the electric motor, In response to the operation of a switch other than the one-touch automatic slide close instruction switch during the operation of the opening cover material corresponding to the close instruction by the one-touch automatic slide close instruction switch, the drive of the electric motor is stopped and the opening is performed. An automatic opening / closing device for an opening covering material, comprising: a third protection control means for giving a signal for instructing the motor driver to drive the electric motor in a direction of opening the covering material.