JP3533653B2 - Opening / closing body control device for vehicles - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open / close control device for a vehicle, and more particularly to open / close control of a power window or the like. 2. Description of the Related Art Hitherto, many vehicle opening / closing body control devices for controlling a power window and the like have been proposed. For example, as disclosed in Japanese Unexamined Patent Publication No. 5-95694, a CPU operating a window glass transmits a rotation pulse (ripple current) output from a rotation sensor incorporated in a motor in a fully closing operation of the window glass. The change in the pulse width is measured, and it is determined whether a normal full closing operation is being performed or an abnormal operation is being performed in which a foreign object is interposed. A vehicle opening / closing device that reversely drives a motor so as to quickly open a window glass when a foreign object is caught has been proposed. [0003] The present invention is, however, in the conventional example constructed as described above, will extend the wire aging to drive the window glass vertically, or increased bus Tsu crash of the motor However, in order to actually bring the window glass to the fully closed state, the number of rotation pulses for driving the motor must be increased to cause the window glass to be in the fully closed state. Further, when the window glass is fully closed, the hardness of a rubber called a weatherstrip provided on the door frame so as to maintain the sealing property varies due to changes in seasons, temperatures, and the like. When the temperature is high, the rubber softens and the number of rotation pulses until the fully closed state increases, and when the winter temperature is low, the rubber hardens and the number of rotation pulses until the fully closed state occurs. As a result, there is a problem that the sealing property cannot be secured. Further, recent vehicles equipped with a power window include:
When foreign matter is caught in the window closing operation,
It is stipulated by security standards or the like that a sensor or the like is provided and controlled so that the operation is reversed. That is, in the power window device, a predetermined reference position of the window glass is determined, the closing operation is performed within the region (reversal region), and the foreign matter is reversed when the foreign material is sandwiched. It is controlled so as to continue operation until it is fully closed. However, since the fully-closed position changes according to the above-mentioned temperature and the reason for the secular change and the models shown in FIGS. 6 and 7, for example, as shown in FIG. If the number of pulses is set, the fully closed position φ 'of the window glass will be higher at high temperatures than at low temperatures because the weatherstrip will be softer. Non-inversion area X
1 is expanded to the non-inversion region X2 at high temperature, and consequently, it is predicted that foreign matter is sandwiched in the non-inversion region, which is not preferable in terms of security. On the other hand, as shown in FIG. 7, when the number of rotation pulses of the fully closed position φ is set at a high temperature of the weatherstrip, the weatherstrip becomes hard at a low temperature, so that the fully closed position φ ′ of the window glass is lower than at a high temperature. In other words, since the non-inversion region is set by the number of pulses, the fully closed position at the time of high temperature is reduced at the time of low temperature. Is erroneously determined to be reversed, and is expected to be inverted, which is not preferable for convenience. Accordingly, a vehicle opening / closing body control device according to the present invention has been made in view of the above circumstances, and an object thereof is to enlarge a non-reversal region due to aging of a power window mechanism or to make an erroneous determination. It is an object of the present invention to provide a vehicular opening / closing body control device capable of improving the reliability of the vehicle. [0007] In order to solve the above-mentioned problems and achieve the object, a vehicle opening / closing body control device of the present invention has the following configuration. That is, a vehicle opening and closing member control apparatus for controlling the rotation number of pulses of the drive motor of the vehicular opening and closing member opening and closing operations of a closure for a vehicle such as a window glass, optionally closed state of the vehicle opening and closing member Set
Means for detecting the number of rotation pulses of a drive motor of the vehicle opening / closing body when the vehicle opening / closing body is opened / closed between a fully closed state and a fully open state by a switch operation for;
The vehicle opening / closing body operates between a fully open state and a fully closed state.
The number of rotation pulses of the drive motor required for
The vehicle opening / closing body must be fully open or fully closed, or
When operating continuously from the closed state to the fully open state
The stored number of rotation pulses is
Means for updating the number of rotation pulses; and the updated rotation pallet.
The vehicle opening / closing body is within a predetermined area based on the number of
Reversal when a foreign object is detected during the closing operation
Control means for determining a reversal area for performing the operation and controlling the opening / closing operation of the vehicle opening / closing body. [0010] As described above, the vehicle opening / closing body control device according to the present invention is configured, so that the opening / closing operation is performed by the operation switch of the window glass. By counting the number of rotation pulses of the drive motor from the fully open position to the fully closed position of the glass, it can be updated to a new fully closed position suitable for the operating environment, and the non-reversal area can be expanded due to aging of the power window mechanism. Inconvenience such as erroneous determination can be improved, and reliability can be improved. Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic diagram of a power window device of the present embodiment according to the present invention. FIG. 2 is a diagram showing an output waveform of a ripple current of a drive motor for driving a window glass. Further, FIG.
3 is a diagram showing the maximum value of the output current and the period when the ripple waveform shown in FIG. 2 is driven stably and when the glass is fully closed. The configuration of the vehicle opening / closing body control device of the present embodiment will be described with reference to FIGS. As shown in FIG. 1, the vehicle opening / closing body control device used in the present embodiment is a power window device 10 for a vehicle, and is generally provided on a door of a vehicle one by one. The power window device 10 is provided inside a door 7 that is normally covered, and includes guides 1 and 2, a regulator 3, a wire 4, a drive motor 5, a glass support bracket 6, and a power window main switch of the illustrated window glass W. 8 is provided. The driving motor 5 transmits a driving force to the wire 4 based on a command from the main switch 8. Wire 4
Rotates in the direction of arrow S3 or S4 when the drive motor 5 rotates. The wire 4 is wound around the regulator 3 and connected to the bracket 6. Regulator 3
Is provided to give the wire 4 a certain amount of tension. The bracket 6 supports the window glass W and is slidably mounted at two positions of the rail-shaped guides 1 and 2. When the wire 4 rotates, the bracket 6 is turned on the guide 1 in the direction of arrow S1 and on the guide 2. In the direction of arrow S2. With the movement of the bracket 6, the window glass W is stored inside the door 7 and moves in the opening direction and also rotates in the arrow S4 direction by the wire 4 rotating in the arrow S3 direction. As a result, the door 7 moves in the closing direction from the inside. The power window main switch 8 is provided near the handles (not shown) inside all the doors. In particular, the driver's seat door includes a passenger seat for a two-door vehicle and a passenger seat for a four-door vehicle. It is provided so that all the window glasses of both rear seats can be opened and closed collectively. Next, a rotation pulse for controlling the rotation of the drive motor will be described. FIG. 2 is a diagram showing an output waveform of a ripple current of a drive motor used to drive a window glass.
FIG. 3 is a diagram showing the output current and the maximum value of the cycle when the ripple waveform shown in FIG. 2 is driven stably and when the glass is fully closed. As shown in FIG. 2, a rotation pulse generated by rotation of the motor is called a ripple current, and the ripple current is detected by monitoring a current output from the motor. Further, the ripple current I _P is monitored by the calculation unit of the power window main switch 8. As shown in FIG. 3, this ripple current I _P
, During normal opening and closing operation of the window glass, the period T at the maximum value is 3.1 ms, the pulse width I _P outputs a stable ripple waveform 2.4A, during the opening and closing operation of the window glass in the full-closed or foreign matter jamming state, At the maximum value, the period T is 60.5 ms,
Pulse width I _P outputs a lock when the ripple waveform of 5.5A. The drive motor 5 of the present embodiment outputs eight ripple pulses per rotation. In addition, the output pulse from the fully opened state to the fully closed state of the window glass is usually set to about 1600 pulses by a dealer, so if the length from the fully opened state to the fully closed state is about 40 cm,
It is 0.25 mm per pulse. As described in the conventional example, the power window device is stipulated by security standards or the like to control by providing a sensor or the like so as to reverse the operation when a foreign object is caught in the window closing operation. The predetermined reference position for performing the reversing operation is a position obtained by subtracting 4 mm (16 pulses) from the fully closed state. Therefore, in terms of the number of pulses, the fully closed position is determined to be 1600 pulses, the inversion area is determined to be 1584 pulses, and the non-inversion area is determined to be 1584 to 1600 pulses. Also,
The control by the rotation pulse of the drive motor 5 is realized by the following switches in FIG. FIG. 4 is a block diagram showing a circuit configuration of the main switch 8 of the power window device 10 of the present embodiment. As shown in FIG.
Shows only the power window device 10a on the driver's seat side, and omits the power window device on the passenger side and the rear seat side. Hereinafter, the circuit configuration of the switch on the driver's seat side will be described with reference to FIG. In FIG. 4, a CPU 20 is a central processing unit for executing arithmetic processing, and includes a window control switch SW1 provided on the driver's seat side.
Based on the connection state of SW4, the connection state is input to the CPU 20 via the wiring l, k, i, h. The connection patterns of the window control switches SW1 to SW4 include an auto-up mode in which the switch SW1 is connected to the fully closed state with one touch, a manual up mode in which the switch is arbitrarily raised in the closing direction when the switch SW2 is connected, and SW3. Is connected, there are four modes: a manual down mode that arbitrarily descends in the opening direction; SW1 is turned on via SW2,
When SW1 is turned on, SW2 is simultaneously turned on. Since SW4 is turned on via SW3, SW4
Is turned on, SW3 is also turned on at the same time. [0018] CPU20 is the + B power from the bus Tsu <br/> Teri is supplied through a fuse F2. Lines j and g connected to SW1 to SW4 are supplied with power from an ignition power supply IG through a fuse F1. Drive motor 5a
Is supplied from an ignition power supply IG via relay circuits l1 and l2. Relay circuit 11 is switch 2
2. It has a coil 24, and when power is supplied to the coil,
The switch 22 is connected to the line s and is turned on. on the other hand,
The relay circuit 12 includes a switch 23 and a coil 25. When power is supplied to the coil, the switch 23 is connected to the line r and turned on. Each of the switches 22 and 23 is grounded via the ground line e in a state where the coil is not energized. The energization of the line coils 24 and 25 is set by terminals o and p of the CPU 20. Also,
The power window cut switch 21 provided on the ground line e cuts operations on the front passenger seat and the rear seat. In such a circuit configuration, when it is desired to raise the window glass, the switch 24 is turned on and the terminal p of the CPU 20 is grounded to energize the coil 24, and the switch 22 is connected to the ignition power supply. You. The ignition power supply enters the motor 5a from the line b, and is supplied to the ground line e from the line c via the switch 23 and the shunt resistor R1. At this time, the CPU 20 detects a ripple pulse output from the motor 5a via the line n branched from the switch 23. Conversely, when it is desired to lower the window glass, the coil 25 is energized by turning on the switch SW3 or SW4 and grounding the terminal o of the CPU 20.
The switch 23 is connected to an ignition power supply. The ignition power supply enters the motor 5a from the line c, and from the line b via the switch 22 and the shunt resistor R1.
Power is supplied to the ground line e. When a foreign object is caught during the closing operation in the inversion area, the ripple pulse is input to the CPU 20 as a lock-time ripple waveform shown in FIG. Is set to the connection state of the relay circuit l1 or l2. Next, a procedure for updating the ripple pulse will be described. Since the opening and closing of the power window device of this embodiment is controlled by the ripple pulse, as described in the problem, the wire for driving the window glass up and down is elongated by aging.
Or increasing bus Tsu crash of the motor is actually the case and the window glass which is not fully closed unless increase the number of rotation pulses for driving the motor to the window glass is fully closed is in the fully closed state, the seal Because the hardness of the rubber called the weatherstrip provided on the door frame to maintain the characteristics varies due to changes in the season and temperature, for example, when the summer temperature is high, the rubber becomes soft and it will be fully closed. The number of rotation pulses of
Conversely, when the temperature in winter is low, when the rubber becomes hard and the number of rotation pulses until the fully closed state decreases, it is necessary to change the set number of pulses. The procedure for changing the number of pulses will be described with reference to the flowchart shown in FIG. FIG.
8 is a flowchart showing a procedure for updating the number of operation pulses of the power window device. In FIG. 5, when the process is started, first, in step S1, it is determined whether or not a pulse number updating mode is set. If a number of pulses update mode in step S1 (YES in Step S 1), the process proceeds to step S2. When the instruction is not to pulse changing mode in step S1 (NO in Step S 1), the process returns to the beginning. In step S2, it is determined whether or not the window glass is in a fully opened state. If the window glass is fully open in step S2, the process proceeds to step S 3. If it is not in the fully opened state in step S2 (NO in step S2), the process returns to the start time. In step S 3, it determines whether the power window main switch 8 is turned on. When the main switch 8 is turned on in step S 3 (YES at Step S 3), the process proceeds to step S 4. Further, if the switch is not on in step S 3 (NO in Step S 3), the process returns to the beginning. [0023] In step S 4, CPU 20 by starting the counting of the number of the ripple pulse. Determining thereafter, in step S8, the switch operation is turned on in step S 3 is whether auto or manual. If the switch operation is automatic in step S8, the process proceeds to step S10. In step S10, it is determined whether or not the window glass is stopped at the fully closed position. When the window glass is stopped at the fully closed position in step S10 (step S1
(YES at 0), the process proceeds to step S18, and the CPU 20 ends counting the number of ripple pulses and temporarily stores the number. Then, in step S20, the CPU 20 rewrites the previously registered pulse number to a new pulse number,
The update of the number of ripple pulses ends. On the other hand, if the window glass is not stopped at the fully closed position in step S10 (N in step S10)
O), proceeding to step S12, if the window glass stops halfway and is not turned on again within a predetermined time,
Return to the starting point. If the switch is turned on within a predetermined time, the process returns to step S8. If the switch operation is manual in step S8, the process proceeds to step S14. In step S14, it is determined whether the window glass has stopped at the fully closed position. If the window glass has stopped at the fully closed position in step S14 (YES in step S14), the process proceeds to step S18, where the CPU 20 ends counting the number of ripple pulses and temporarily stores the number. Then, in step S20, the CPU 20 rewrites the previously registered pulse number to a new pulse number, and ends the update of the ripple pulse number. On the other hand, if the window glass is not stopped at the fully closed position in step S14 (N in step S14)
O), proceeding to step S16, if the window glass stops halfway and is not switched on again within a predetermined time,
Return to the starting point. If the switch is turned on within a predetermined time, the process returns to step S8.
The set mode in step S1 may be set by a switch provided separately from the power window switch, or may be set by a power window switch. For example, when performing a power window switch, up to the step S1~ step S 3, the auto-up switch can be realized by replacing the step of determining whether it is turned on in a fully open state of the window glass. (Effects of Embodiment) As described above, according to the power window device of this embodiment, by counting and updating the number of pulses from fully open to fully closed, a new window suitable for the season and use environment can be obtained. It can be updated to the fully closed position,
Unless the window glass is stopped halfway in the update mode, the pulse number can be updated accurately without being affected by backlash of the wire or the like. The present invention can be applied to a modification or a modification of the above embodiment without departing from the spirit of the invention. For example, in the present embodiment, the number of pulses from fully open to fully closed is counted and updated, but on the contrary, updating by counting the number of pulses from fully closed to fully open is also possible. As described above, according to the opening / closing body control device for a vehicle of the present invention, when the opening / closing operation is performed by the operation switch of the window glass, from the fully open position to the fully closed position of the glass. By counting the number of rotation pulses of the drive motor, it can be updated to a new fully closed position suitable for the operating environment, and the inconvenience such as expansion of the non-reversal area and erroneous determination due to aging of the power window mechanism can be improved, Performance can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view of a power window device used in the present embodiment. FIG. 2 is a diagram showing an output waveform of a ripple current of a drive motor for driving a window glass. 3 is a diagram showing the maximum value of the output current and the period when the ripple waveform shown in FIG. 2 is driven stably and when the glass is fully closed. FIG. 4 is a block diagram showing a circuit configuration of a main switch of the power window device of the present embodiment. FIG. 5 is a flowchart showing a procedure for updating the number of operation pulses of the power window device. FIG. 6 is a model diagram for explaining the reason why the number of pulses up to the fully closed position varies due to changes in season, temperature, and the like. FIG. 7 is a model diagram illustrating the reason why the number of pulses to the fully closed position varies due to changes in season, temperature, and the like. [Description of Signs] 1, 2 Guide 3 Regulator 4 Wire 5 Drive motor 6 Window support bracket 7 Door 8 Power window switch 10 Power window device 20 CPU 21 Power window cut switches 11 and 12 … Relay circuit

Claims (1)

(1) A vehicle opening / closing body control device for controlling the opening / closing operation of a vehicle opening / closing body such as a window glass by the number of rotation pulses of a drive motor of the vehicle opening / closing body. A switch for arbitrarily setting the open / close state of the vehicle opening / closing body.
Means for detecting the number of rotation pulses of a drive motor of the vehicle opening / closing body when the vehicle opening / closing body is opened / closed between a fully closed state and a fully open state by a switch operation ; Operate between state and fully closed state
The number of rotation pulses of the drive motor required for
The vehicle opening / closing body must be fully open or fully closed, or
When operating continuously from the closed state to the fully open state
The stored number of rotation pulses is
Means for updating to the number of rotation pulses , and the opening for the vehicle based on the updated number of rotation pulses.
During the closing operation of the closing body within the predetermined area,
Determines the inversion area for performing the inversion operation when detected.
Constant to, a closure for a vehicle control apparatus characterized by comprising a control means for controlling the opening and closing operation of the vehicle opening and closing member.