JP3458147B2 - Power window device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window device used for automatically moving a windshield of an automobile.

[0002]

2. Description of the Related Art Conventionally, in a power window device for automatically moving a windshield of an automobile, rotational power of an armature shaft provided in a motor is transmitted to a window regulator via a reduction mechanism, a damper member and an output shaft. By moving the window regulator, the window glass connected to the window regulator is moved to the open side / closed side. A sensor is attached to the armature shaft, and the rotation speed of the armature shaft is converted into a pulse signal by the sensor and transferred to the controller as current position data.
The controller recognizes the stroke of the window glass by the number of pulse signals from the sensor generated in response to the movement of the window glass, and determines the reversal permission area by the count value from the intermediate position to near the fully closed position in this stroke. It is set and the reversal prohibition area is set from near the fully closed position to the end of the fully closed stroke. When the window glass is moving to the closing side, the controller recognizes that some kind of pinch has occurred in the window glass when the count is lost from the sensor when it is in the reversal permission area, and the opening side opposite to the closing side is recognized. Current is supplied to the motor to eliminate pinching by the windshield. A motor used in such a power window device is a utility model Sho 61-3987.
No. 3 publication.

[0003]

In the above-described conventional power window device, since it has a structure in which the current position of the window glass is detected by the sensor attached to the armature shaft, the power window device moves toward the fully closed position. When something is caught in the windshield, the windshield is blocked from moving, and because the windshield is blocked from moving, the wind regulator is also blocked from moving. , Torsional deformation within elastic limit. Until the torsional deformation of the damper member is completed, the armature shaft is not completely in the restrained state.Therefore, from the timing when the windshield is blocked to the timing when the rotation of the armature shaft is completely restrained. There is a problem that there is a possibility that a time lag will occur between them and the detection timing of entrapment will be delayed, and there has been a problem to solve this problem.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a power window device capable of performing a quick reversing operation by eliminating a time lag after the occurrence of pinching by the wind glass. .

[0005]

[Constitution of the invention]

[0006]

SUMMARY OF THE INVENTION A power window device according to the present invention is a motor in which an armature shaft rotates so that a window glass can be moved to an open side or a closed side by supplying a current to a positive side or a reverse side, and A power window actuator having a reduction mechanism that reduces the rotation of the armature shaft, a damper member that is connected to the reduction mechanism, and an output shaft that is connected to the damper member, and one of which is connected to the output shaft and the other of which is A window regulator connected to the window glass for moving the window glass to the open side or the closed side by the power of the output shaft, a rotation detecting means for generating a pulse signal from the power window actuator according to the movement of the window glass, and a power window actuator. Drive means electrically connected to In addition, the current position of the windshield is detected based on the pulse signal from the rotation detection means, the load applied to the windshield is estimated, and the current position is moving to the closed side. And the estimated load on the windshield is greater than a predetermined value,
In a power window device including a control means for supplying a current on the window opening side opposite to the window closing side to the power window actuator via the driving means, the rotation detecting means is provided on the output shaft. It is characterized by having done.

In the power window device according to claim 2 of the present invention, in the power window device including the rotation detecting means for generating a pulse signal in response to the movement of the window glass, the rotation detecting means is a damper of the power window actuator. It is characterized in that it is provided between the member and the window regulator.

In the power window device according to claim 3 of the present invention, in the power window device including the rotation detecting means for generating a pulse signal in response to the movement of the window glass, the rotation detecting means is the output of the power window actuator. It is characterized in that it is arranged so as to detect a pulse according to the rotation of the shaft.

In the power window device according to the fourth aspect of the present invention, the rotation detecting means for generating a pulse signal in response to the movement of the window glass, the driving means for supplying a current to the power window actuator, and the window glass on the closing side. While it is moving, it has a reversal permission area detection means for detecting that it is in the reversal permission area based on the pulse signal from the rotation detection means, and is in the reversal permission area by the reversal permission area detection means. In this state, the current position of the windshield is detected based on the pulse signal from the rotation detecting means, the load on the windshield is estimated, and the estimated load on the windshield is a predetermined value. Is larger than the power window, the current on the window opening side opposite to the window closing side is applied to the power window via the drive means. In the power window device including the control means for supplying the actuator, the rotation detecting means is arranged so as to detect a pulse corresponding to the rotation of the output shaft of the power window actuator. .

[0010]

In the power window device according to the first to fourth aspects of the present invention, if some kind of pinch occurs in the reversal permission area while the window glass is moving to the closing side,
Since the window glass is prevented from moving, the window regulator is also prevented from moving, and the movement of the window regulator is blocked. The rotation detecting means provided in the connecting portion detects the blockage of the movement of the window regulator.
Therefore, it is possible to detect the blockage of the movement of the window regulator without using the damper member. Therefore,
The entrapment detection timing is almost the same as when the window regulator is prevented from moving.

[0011]

1 to 4 show one embodiment of a motor control method for a power window device according to the present invention.

In the illustrated power window device 1, the window switch 2 is provided with an auto switch 2a, an up switch 2b, and a down switch 2c. The auto switch 2a is electrically connected to the control means 3 via an auto signal line 2a1. It is connected. The auto signal generated by turning on the auto switch 2a is transferred to the control means 3 through the auto signal line 2a1. The auto signal transferred from the auto signal line 2a1 to the control means 3 has a function for continuous instruction of a manual up signal and a down signal, which will be described later. The up switch 2b provided in the window switch 2 is for manual operation, and is electrically connected to the control means 3 via the up signal line 2b1. The up signal generated by turning on the up switch 2b is transferred to the control means 3 through the up signal line 2b1. When the up switch 2b is turned on and the auto switch 2a is also turned on, the up signal and the auto signal are transferred through the up signal line 2b1 and the auto signal line 2a1. Make them recognize. The down switch 2c provided in the window switch 2 is for manual operation, and is electrically connected to the control means 3 via the down signal line 2c1. The down signal generated by turning on the down switch 2c is transferred to the control means 3 through the down signal line 2c1. When the down switch 2c is turned on and the auto switch 2a is turned on, the down signal and the auto signal are transferred through the down signal line 2c1 and the auto signal line 2a1. Therefore, a continuous command on the open side is given to the control means 3. Make them recognize.

The control means 3 to which the window switch 2 is electrically connected includes an ignition switch 4 and a power supply 5.
Are connected.

The control means 3 includes a power supply circuit 6, a reset circuit 7, a power supply voltage detection circuit 10, and a microcomputer 1.
1, a drive means 12 is provided.

One of the power supply circuits 6 provided in the control means 3 is connected to the power supply 5 and the other is connected to the power supply input section of the microcomputer 11, and a current is constantly supplied to the memory in the microcomputer 11. We are supplying.

One of the reset circuits 7 provided in the control means 3 is connected to the power source 5 and the other is connected to the reset input section of the microcomputer 11. The reset circuit 7 is connected to the reset input section of the microcomputer 11 every time the ignition switch 4 is turned on. The computer 11 is set to the initial state.

One of the power supply voltage detection circuits 10 provided in the control means 3 is connected to the ignition switch 4 and the other is connected to the power supply voltage detection portion of the microcomputer 11, so that the ignition switch 4 is turned on. Microcomputer 1 for overcurrent generated when
It has the function of not flowing to 1.

The microcomputer 11 provided in the control means 3 has a built-in position counter 11a and a pulse cycle timer 11b, and the position counter 11a constantly counts pulse signals generated by a rotation detection means 13 described later. The microcomputer 11 recognizes the current position of the window glass 14 based on the count number of the position counter 11a. Since the pulse cycle timer 11b counts the current cycle time of the pulse signal generated by the rotation detection means 13 described later, the microcomputer 11 determines whether the current cycle time of the pulse cycle timer 11b is longer than the predetermined reference cycle time. By determining whether or not there is a load, it is determined.

The driving means 12 is a power source connecting means such as a relay, which is connected to the output part of the microcomputer 11 and is connected to a motor 16 provided in a power window actuator 15 described later by a signal generated from the output part. The current of the power supply 5 is switched between the auto close side, the auto open side, the manual close side, and the manual open side to be supplied.

Here, the microcomputer 11 is an auto switch 2a provided in the window switch 2,
Each signal from the up switch 2b and the down switch 2c is discriminated, and as a result of the discrimination, a drive signal for the automatic closing side, the automatic opening side, the manual closing side, and the manual opening side is sent to the driving means 12. The drive means 12 supplies the motor 16 of the power window actuator 15 with currents on the automatic close side, the automatic open side, the manual close side, and the manual open side in response to the drive signal sent. In addition, the microcomputer 1
The position counter 11a counts the pulse signal from the rotation detecting means 13 and the window glass 14
From the value Pcd corresponding to approximately the middle of the fully open position and the fully closed position within the full stroke of P to the value P immediately before the fully closed position.
Set the count number Pc up to cu as the inversion permission area,
A value corresponding to the fully closed position of the window glass 14 on the fully closed side of the inversion permitted area is set as the inversion prohibited area. When there is a pulse signal from the rotation detecting means 13, the count Pc of the position counter 11a is updated to start a new count, and based on the pulse signal from the rotation detecting means 13, from the previous pulse signal to the current pulse signal. The current cycle time Tp is calculated from the elapsed time, and the expected cycle time Tref when the window glass 14 is loaded is calculated based on the current cycle time Tp. Then, the value of the pulse cycle timer 11b is equal to the expected cycle time Tref.
And the drive signal to the drive means 12 is on the automatic close side or the manual close side, and the position counter 11a
In order to recognize that some kind of pinch has occurred in the window glass 14 based on the fact that the count number is within the reversal permission area, control is performed to switch the drive signal to the drive means 12 to the open side. When the value of the pulse period timer 11b has passed the value TL corresponding to the locked state, it is recognized that the window glass is at the stroke end, and therefore control is performed to cut the drive signal to the drive means 12.

On the other hand, a power window actuator 15 is also connected to the control means 3, and the power window actuator 15 has a motor 16, a rotation detecting means 13,
A damper member 18 and a speed reduction mechanism 17 are provided. The brush terminals 16b and 16c provided in the motor 16 are connected to the drive means 12 of the control means 3, and the drive means 1
The armature shaft 16a by the current supplied from
Rotates. The armature shaft 16a is connected to the input side of the reduction mechanism 17, and the rotation of the armature shaft 16a is reduced by the reduction mechanism 17 and transmitted from the output side of the reduction mechanism 17 to the damper member 18. An output shaft 20 is connected to the damper member 18 and a rotation detecting means 13 is connected to the output shaft 20, and the rotational power of the armature shaft 16a transmitted to the damper member 18 is predetermined by the damper member 18. The elastic twist amount is given and transmitted to the output shaft 20 and the rotation detecting means 13. The rotation detecting means 13 is composed of a plurality of Hall elements, and the rotation of the armature shaft 16a transmitted to the rotation detecting means 13 is converted into a pulse signal and transferred to the microcomputer 11 of the control means 3. The transferred pulse signal is the microcomputer 11
The position counter 11a and the pulse cycle timer 11b are counted therein. The output shaft 20 to which the rotational power is transmitted from the damper member 18 has a window regulator 1
The input side of 9 is connected, and the window regulator 1
Since the rotational power of the output shaft 20 transmitted to 9 is converted into the movement of the window crow 14 connected to the output side of the window regulator 19, the window glass 14 is moved within the stroke between the fully closed position and the fully open position. Move with.

Here, the damper member 18 has the characteristics shown in FIG. That is, since the damper member 18 has a large elastic twist amount in proportion to the increase in the rotation torque of the armature shaft 16a, as shown by the line A in the figure, the rotation torque of the armature shaft 16a rises in a short time. Even if so, the rotational torque transmitted to the output shaft 20 gradually increases in a relatively long time with respect to the increase in the torque of the armature shaft 16a, and as a result, the rotational torque output is higher than that shown by the line B in the figure. A slight time delay is added to the rotational power transmitted to the shaft 20. Since the damper member 18 has a large elastic twist amount in proportion to the increase of the rotation torque of the armature shaft 16a, the force applied to the pinch becomes gentle and the occurrence of the pinch is detected with respect to the damper member 18. The rotation detection means 13 connected to the output shaft 20 on the side of the window glass 14 detects the rotation, so that the rotation is quickly performed.

Since the rotation detecting means 13 is connected to the output shaft 20 which is the connecting portion of the power window actuator 15 on the window regulator side, the rotation detecting means 13 is directly connected to the movement of the window glass 14. The rotation is detected at. Since the rotation detecting means 13 is directly connected to the movement of the windshield 14, as shown in FIG. 3, the relationship between the operating speed v of the windshield 14 and the lapse of time t is as follows.
Starts moving from the fully open position to the fully closed position, and if the window glass 14 is caught in the window glass 14 while the operating speed v is stable, the window glass 14 is prevented from moving and the operating speed v is instantaneous. Will decline in time. The rotation detecting means 13 no longer generates a pulse signal because the operating speed v has decreased, and the microcomputer 11 recognizes that the windshield 14 is sandwiched.

At this time, the rotation detecting means 13 as in the conventional case.
Is attached to the movement of the window glass 14 via the damper member 18, the elastic twist amount of the damper member 18 is reduced after the movement of the window glass 14 is restrained as shown by the broken line in the figure. Accordingly, the rotation detecting means 1
Until the pulse signal of No. 3 disappears, a delay time occurs due to the amount of elastic twist, which delays the recognition of the pinching by the microcomputer 11 and prolongs the time for which the pinching continues. According to the embodiment, such a drawback does not occur.

The rotation detecting means 13 is not limited to the above-mentioned one, but the rotation in the state where it is directly connected to the movement of the window glass 14 even if it is connected to the connecting portion of the window regulator 19 on the power window actuator 15 side. Detect.

The power window device 1 having such a structure performs the control operation shown in FIG. When the ignition switch 4 is turned on, the control means 3 is in an operation standby state, and when the down switch 2c of the window switch 2 is turned on from the state where the window glass 14 is fully closed, it is determined in step 30. Step 31
Since the auto signal from the auto switch 2a is not confirmed, the process proceeds to step 32. Since the up signal from the up switch 2b is not confirmed in the determination in step 32, the process proceeds to step 33, and the determination in step 33 is performed. Since the down signal is confirmed, the routine proceeds to step 34, where the drive means 12 supplies current to the power window actuator 15 on the manual opening side and then proceeds to step 35. In step 35, sampling is performed by motivating the generation of the pulse signal, so that the process proceeds to step 36 and the expected cycle time which is a value when the window glass 14 is loaded based on the current cycle time Tp of the pulse cycle timer 11b. It is determined whether or not Tref has elapsed, and the expected cycle time Tref has not elapsed, so the process returns to step 30. Since the electric current on the manual opening side is supplied from the drive means 12 to the power window actuator 15, the armature shaft 16a of the motor 16 starts to rotate, and the reduction mechanism 17, the damper member 18, the rotation detection means 13, and the output shaft 20 are connected to the armature. Since the rotational power of the shaft 16a is transmitted,
The window glass 14 is moved to the open side via the window regulator 19. Since the rotation detecting means 13 generates a pulse signal when the armature shaft 16a starts rotating, the determination step 3 in step 35
7, the count number Pc of the position counter a is updated in step 37, the process proceeds to step 38, the current cycle time Tp is calculated from the value of the pulse period timer in step 38, and the process proceeds to step 39, step 39. Based on the current cycle time Tp, the expected cycle time Tref when the window glass 14 is loaded is calculated based on the current cycle time Tp, and the process returns to step 30. Since the pulse signal continues to be generated, the routine proceeds to step 36 by the determination of step 35 and returns to step 30, and the routine proceeds to step 37, step 38 and step 39 by the determination of step 35, The routine of shifting to 30 is repeated.

Windshield 14 being moved to the open side
Reaches the fully open position, the process proceeds to step 40 by the determination in step 36, the drive signal from the drive means 12 is recognized in step 40, and the drive signal from the drive means 12 is the drive signal on the window open side. If the value of the pulse period timer 11b has passed the value T corresponding to the locked state in the determination in step 41, the process proceeds to step 42 and the driving means 1
The drive signal from 2 is cut off, and the process returns to step 30.

When the down switch 2c of the window switch 2 is turned on while the window glass 14 is fully closed, the window glass 14 is moved to the open side in response to the on time of the down switch 2c, and the window glass 14 is in the fully open position. When the window glass 14 reaches, the current supply to the power window actuator 15 is turned off and the window glass 14 is stopped at the fully open position.

Here, when the down switch 2c is turned on after the auto switch 2a of the window switch 2 is turned on while the window glass 14 is fully closed, the process proceeds to step 43 by the determination in step 30, and the step is performed. When it is determined in step 43, the process proceeds to step 44, and when determined in step 44, the process proceeds to step 45, where the drive means 12 supplies current to the power window actuator 15 on the automatic opening side, and then proceeds to step 35.
After step 35, control is performed in the same manner as described above.

When the window glass 14 is fully closed and the auto switch 2a and the down switch 2c of the window switch 2 are turned on, the window crow 14 is continuously moved to the open side, and when the window glass 14 reaches the fully opened position. The current supply to the power window actuator 15 is turned off and the window glass 14 is stopped at the fully open position.

When the up switch 2b of the window switch 2 is turned on while the window glass 14 is at the fully open position, the determination in step 30 results in step 3
1 and there is no auto signal from the auto switch 2a, the process moves to step 32. Since the up signal from the up switch 2b is confirmed by the discrimination in step 32, the process moves to step 46, and the driving means in step 46. A current is supplied from 12 to the power window actuator 15 on the manual closing side, and the routine proceeds to step 35. In step 35, the determination in step 35
When the shift is made to, it is judged whether or not the expected cycle time Tref, which is the value when the window glass 14 is loaded, has elapsed based on the current cycle time Tp of the pulse cycle timer 11b. Since it has not elapsed, the process returns to step 30. Since electric current is supplied from the drive means 12 to the power window actuator 15 on the manual closing side, the armature shaft 16a of the motor 16 starts to rotate, and the reduction mechanism 17 and the damper member 1 are started.
Since the rotational power of the armature shaft 16a is transmitted to the output shaft 8, the rotation detecting means 13, and the output shaft 20, the window glass 14 is moved to the closing side via the window regulator 19. Since the rotation detecting means 13 generates a pulse signal when the armature shaft 16a starts rotating, the process proceeds to the determination step 37 in step 35, the count number Pc of the position counter a is updated in step 37, and the procedure goes to step 38. Transition, step 3
In 8 the current cycle time Tp from the value of the pulse cycle timer
Is calculated, the process proceeds to step 39, and in the determination in step 39, the expected cycle time Tref when the windshield 14 is loaded is calculated based on the current cycle time Tp, and the process returns to step 30. Then, since the pulse signal continues to be generated, the routine proceeds to step 36 by the determination in step 35 and returns to step 30, and the routine proceeds to step 37, step 38, and step 39 by the determination in step 35. Then, the routine of shifting to step 30 is repeated.

The window glass 14 being moved to the closed side
When reaches the fully closed position, the process proceeds to step 40 by the determination in step 36, and the drive signal from the drive means 12 is recognized in step 40. Since the drive signal from the drive means 12 is the drive signal on the window closing side, the routine proceeds to step 47, where it is determined whether or not the window glass is within the reversal permission area based on the current position data of the position counter 11a in the determination at step 47. If the current position data of the position counter 11a indicates that the window glass is not within the reversal permission area, then step 48 is skipped and the process proceeds to step 41, where the value of the pulse period timer 11b is locked in the determination in step 41. Value T corresponding to
Since it is determined that it has not passed L,
In step 42, the drive signal from the drive means 12 is cut off, and the process returns to step 30.

When the up switch 2b of the window switch 2 is turned on while the window glass 14 is fully open, the window glass 14 is moved to the closed side in response to the on time of the up switch 2b, and the window glass 14 is in the fully closed position. When the window glass 14 reaches, the current supply to the power window actuator 15 is turned off and the window glass 14 is stopped at the fully closed position.

Here, if the up switch 2b is turned on after the auto switch 2a of the window switch 2 is turned on while the window glass 14 is fully open, the process proceeds to step 43 by the determination in step 30, and step 43. In step 49, the drive means 12 supplies the power window actuator 15 with the current on the automatic closing side in step 49, and the process proceeds to step 35. After step 35, the same control as described above is performed. .

Auto switch 2a of window switch 2
When the up switch 2b is turned on, the windshield 14 is continuously moved to the closed side and the windshield 14 is closed.
When reaches the fully closed position, the window glass 14 stops the current supply to the power window actuator 15 and is stopped at the fully closed position.

During this time, the up switch 2b of the window switch 2 is moved from the state where the window glass 14 is in the fully open position.
Is turned on, or the up switch 2b and the auto switch 2a are turned on at the same time, the electric current is supplied to the motor 16 of the power window actuator 15 on the manual closing side and the automatic closing side, and the windshield 14 is closed. If a pinch occurs on the moving side of the window glass 14 when the window glass is moving to the closing side, the determination in step 35 proceeds to step 36, the determination in step 36 proceeds to step 40, and in step 40. When it is determined that the current position of the window glass 14 is within the reversal permission region after the determination of step 47, the process proceeds to step 48. Therefore, at step 48, the manual closing of the power window actuator 15 from the driving means 12 is performed. Side current supply, auto-close side current supply For switching to automatic opening side of the current supply by inverting the motor 16 armature shaft 16
The rotation direction of a is reversed, and the window glass 14 is continuously moved toward the open side. While the window glass 14 is moved to the open side and it is determined in step 41 that the value of the pulse period timer 11b has not exceeded the value TL corresponding to the locked state, the power window actuator 15 is instructed. When it is determined that the current on the window opening side is supplied and the value of the pulse period timer 11b has exceeded the value TL corresponding to the locked state, the process proceeds to step 42 and the driving means for the power window actuator 15 is executed. The drive signal from 12 is cut off.

That is, when pinching occurs when the window glass 14 is in the inversion permission area while the window glass 14 is moving to the closed side, the window glass 14 is inverted to move to the open side and reaches the fully open position. By the way, it will be stopped.

The rotation detecting means 13 detects the rotation of the window glass 14 when it is directly connected to the movement of the window glass 14 when the window glass 14 is caught in the reversal permission area while the window glass 14 is moving to the closing side. To do, wind glass 1
The time from the occurrence of the pinching of No. 4 to the disappearance of the pulse signal by the rotation detecting means 13 is instantaneous.

[0039]

As described above, the power window device according to the present invention is provided with the rotation provided on the output shaft which is the window regulator side connecting portion of the power window actuator or the power window actuator side connecting portion of the window regulator. The detection means detects that the window regulator has stopped moving. Therefore, the trapping can be detected without using the damper member, so that the trapping detection timing is almost the same as when the movement of the window regulator is blocked. Therefore, there is an excellent effect that a quick reversal operation can be performed after the pinching by the wind glass occurs.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a power window device according to the present invention.

FIG. 2 is a flowchart illustrating an operation of the power window device shown in FIG.

FIG. 3 is a relationship diagram between the passage of time and the operating speed in the power window device shown in FIG.

FIG. 4 is a characteristic diagram of the torque of the armature shaft and the twist amount of the damper member in the power window device shown in FIG.

[Explanation of symbols]

1 Power window device 3 control means 12 Drive means 13 Rotation detecting means 14 wind glass 15 Power window actuator 16 motor 16a armature shaft 17 Reduction mechanism 18 Damper member 19 wind regulator 20 output shaft

Continuation of the front page (56) Reference JP-A-63-165682 (JP, A) Actual development 60-68282 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E05F 15 / 16 B60J 1/17 H02P 3/08 H02P 5/06

Claims (4)

(57) [Claims] 1. A motor in which an armature shaft rotates so that a window glass can be moved to an open side or a closed side by supplying a current to a positive side or a reverse side, a reduction mechanism for reducing rotation of an armature shaft of the motor, and A power window actuator having a damper member connected to the speed reduction mechanism and an output shaft connected to the damper member, one of which is connected to the output shaft and the other of which is connected to a window glass. A window regulator that moves the window glass to the open side or the closed side by power, a rotation detection unit that generates a pulse signal from the power window actuator according to the movement of the window glass, and is electrically connected to the power window actuator. It has a driving means and the rotation detection The current position of the windshield is detected based on the pulse signal from the output means, the load applied to the windshield is estimated, and the windshield is moving to the closing side. When the estimated load on the glass is larger than a predetermined value, a control means for supplying a current on the window opening side opposite to the window closing side to the power window actuator via the driving means. In the power window device, the rotation detecting means is provided on the output shaft. 2. A motor in which an armature shaft rotates so as to move a window glass to an open side or a closed side by supplying a current to a positive side or a reverse side, a reduction mechanism for reducing the rotation of an armature shaft of the motor, and A power window actuator having a damper member connected to the speed reduction mechanism and an output shaft connected to the damper member, one of which is connected to the output shaft and the other of which is connected to a window glass. It has a window regulator for moving the window glass to an open side or a closed side by power, a rotation detecting means for generating a pulse signal according to the movement of the window glass, and a driving means electrically connected to the power window actuator. In addition, based on the pulse signal from the rotation detecting means, The current position of the windshield is detected, and the load applied to the windshield is estimated.When the windshield is moving to the closed side, the current position is within the reversal permission area and the estimated load on the windshield is A power window device comprising: a control means for supplying a current on the window opening side opposite to the window closing side to the power window actuator via the driving means when the value is larger than a predetermined value. The power window device, wherein the rotation detecting means is provided between the damper member of the power window actuator and the window regulator. 3. A motor in which an armature shaft rotates so that a window glass can be moved to an open side or a closed side by supplying a current to a positive side or a reverse side, a reduction mechanism for reducing the rotation of an armature shaft of the motor, and A power window actuator having a damper member connected to the speed reduction mechanism and an output shaft connected to the damper member, one of which is connected to the output shaft and the other of which is connected to a window glass. It has a window regulator for moving the window glass to the open side or the closed side by power, a rotation detecting means for generating a pulse signal according to the movement of the window glass, and a driving means for supplying a current to the power window actuator. Along with the pulse signal from the rotation detecting means, The current position of the lath is detected and the load applied to the windshield is estimated.While the windshield is moving to the closed side, the current position is within the reversal permission area and the estimated load on the windshield is A power window device comprising: a control means for supplying a current on the window opening side opposite to the window closing side to the power window actuator via the driving means when the value is larger than a predetermined value. The power window device, wherein the rotation detecting means is arranged so as to detect a pulse corresponding to the rotation of the output shaft of the power window actuator. 4. A motor in which an armature shaft rotates so that a window glass can be moved to an open side or a closed side by supplying a current to a positive side or a reverse side, a reduction mechanism for reducing the rotation of an armature shaft of the motor, and A power window actuator having a damper member connected to the speed reduction mechanism and an output shaft connected to the damper member, one of which is connected to the output shaft and the other of which is connected to a window glass. A window regulator that moves the window glass to the open side or the closed side by power, a rotation detection unit that generates a pulse signal according to the movement of the window glass, a drive unit that supplies a current to the power window actuator, and a window glass While moving to the closed side, based on the pulse signal from the rotation detection means And a reversal permission area detecting means for detecting that the reversal permission area is present, and when the reversal permission area detecting means detects that the reversal permission area is within the reversal permission area, a pulse signal from the rotation detecting means is used. And detect the current position of the windshield,
The load applied to the windshield is estimated, and when the estimated load applied to the windshield is greater than a predetermined value, the wind opening side of the wind opening side opposite to the wind closing side is driven via the drive means. In a power window device comprising a control means for supplying a current to the power window actuator, the rotation detecting means is arranged to detect a pulse according to rotation of an output shaft of the power window actuator. Characteristic power window device.