JP2008291590A - Opening/closing body control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing body control device for protecting a driving element without giving an overload to held-in foreign matters by controlling a time before driving a motor to be reversed depending on an operating environment of the motor. <P>SOLUTION: A power window device 1 comprises the motor 20 for driving window glass 11 to be open and closed, and a controller 31 for detecting the holding of foreign matters in the window glass 11 when driven to be open and closed. The motor 20 is driven to be reversed when the controller 31 detects the holding thereof. The controller 31 detects the operating environment of the motor 20 and detects the holding thereof depending on the detected operating environment, and then controls a time to be variable before driving the motor 20 to be reversed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an opening / closing body control device, and more particularly, to an opening / closing body control device capable of detecting foreign object pinching by the opening / closing body.

  Conventionally, in a device that opens and closes an opening / closing body such as a power window device or a sunroof device of a vehicle, when the foreign object is caught by the opening / closing body, the opening / closing body is reversed by reversing the motor for driving the opening / closing body. A pinching prevention function that operates and prevents pinching is provided (for example, see Patent Document 1).

JP 2006-307636 A (page 10-11)

  In such a device, when the motor is instantaneously reversely driven when pinching is detected, a braking current is added to the starting current, resulting in a large reverse starting current that is about twice the normal starting current, and relays, FETs, etc. However, there is a problem that the drive element may be deteriorated or destroyed in an extreme case.

  To protect the drive element, if it is reversely driven with a certain interval after detecting pinching, an excessive load is applied to the trapped foreign object during the constant interval. It was inconvenient. Therefore, it is conceivable to set the interval from pinching detection to the start of reverse rotation driving of the motor to such an extent that an excessive load is not applied to the foreign matter, but the load generated by the motor depends on the amount of current flowing to the motor, but in reality Since the amount of current increases / decreases depending on the environmental conditions such as the temperature, the load generated according to the environmental conditions becomes variable, and there is a problem that it is difficult to set an appropriate interval.

  In view of the above problems, an object of the present invention is to control the time until the motor is driven in reverse rotation according to the operating environment of the motor, and to control the opening and closing body that can protect the driving element without applying an excessive load to the caught foreign matter To provide an apparatus.

  According to the opening / closing body control device according to claim 1, the object includes: a motor that drives the opening / closing body to open / close; and a pinching detection unit that detects pinching of foreign matter by the opening / closing body during opening / closing driving, and the pinching detection In the opening / closing body control device that reversely drives the motor when the pinching is detected by the means, the pinching detection unit detects the operating environment of the motor and detects the pinching according to the detected operating environment, and then the motor is operated. This can be solved by controlling the time until the reverse drive is made variable.

  Thus, the opening / closing body control device according to claim 1 detects the operating environment of the motor and variably controls the time from the pinching detection to the reverse rotation driving of the motor according to the detected operating environment. Depending on the operating environment, the current to be applied to the motor drive elements such as relays and FETs differs, but the switch control device is configured in this way, so it can be pinched by changing the timing to reversely drive the motor according to the operating environment. The load can be prevented from increasing more than necessary, and the motor drive elements can be protected.

  At this time, the operating environment is preferably a drive voltage of the motor. Since the voltage applied to the drive element is low when the drive voltage is low, the timing of reverse rotation driving of the motor can be made variable according to the drive voltage in this way, and the energization start for reverse rotation drive when the drive voltage is low can be accelerated. , Damage to the driving element can be reduced. Accordingly, it is possible to immediately avoid the foreign object from being caught while suppressing the deterioration of the driving element.

  The operating environment may be an outside air temperature. When the outside air temperature is low, the sliding loss between the weatherstrip and the window glass increases, and the current flowing to the motor and drive elements increases and the operating speed decreases. By making the timing for reverse driving variable and making the energization of the reverse driving slow when the outside air temperature is low, damage to the drive element can be reduced. Further, since the operating speed is also reduced, the reverse drive can be performed without increasing the foreign object pinching load even if the reverse drive energization is delayed.

  Furthermore, the operating environment may be the temperature of the motor. When the motor temperature is low, the current that flows to the drive element increases and the operating speed also decreases. Thus, when the motor is driven in reverse according to the motor temperature, the motor temperature is low. In this case, the energization of the reverse drive is delayed to reduce damage to the drive element. Further, since the operating speed is also reduced, the reverse drive can be performed without increasing the foreign object pinching load even if the reverse drive energization is delayed.

  Alternatively, the operating environment may be a vehicle ignition switch signal. When the ignition switch is OFF, the drive voltage is lower than when the engine is running, so the voltage across the drive element is also low. In this way, even if the timing for reversely driving the motor is made variable in accordance with the ignition switch signal and the energization of the reverse drive is accelerated when the ignition switch is off, damage to the drive element can be reduced. Further, when the ignition switch is turned on, the drive voltage is high and the voltage applied to the drive element is high, so that the reverse drive energization can be delayed to reduce damage to the drive element.

  The operating environment may be the current of the motor. In this way, if the timing of reverse rotation driving of the motor is made variable according to the motor current, the current flowing through the drive element is small when the motor current is small. , Damage to the driving element can be reduced.

  According to the opening / closing body control device of the present invention, the reverse drive timing of the motor is controlled according to the environment such as temperature, voltage, current, etc. The drive element can be protected without applying an excessive load.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the configurations, procedures, and the like described below do not limit the present invention, and various modifications can be made according to the spirit of the present invention.
1 to 4 relate to an embodiment of the present invention, FIG. 1 is an explanatory diagram of a power window device, FIG. 2 is an electrical configuration diagram of the power window device of FIG. 1, and FIG. 3 is a temperature characteristic of a motor current. 4 is a graph showing the inversion delay time according to the temperature, FIG. 4 is a graph showing the voltage characteristic of the motor current and the inversion delay time according to the voltage, and FIG. 5 is the motor output, current, and pinching when the motor is instantaneously reversed. FIG. 6 is a graph showing changes in load, FIG. 6 is a graph showing changes in motor output, current, and pinching load when the motor is reversely rotated at a constant interval, and FIG. 7 is a processing flow of reverse delay time control.

Hereinafter, an embodiment in which the present invention is applied to a power window device will be described.
FIG. 1 is an explanatory diagram of the power window device 1 of this example, and FIG. The power window device 1 of this example is configured to move up and down (open and close) a window glass 11 as an opening and closing body disposed on a door 10 of a vehicle by rotational driving of a motor 20. The power window device 1 includes a drive means 2 for opening and closing the window glass 11, a control means 3 for controlling the operation of the drive means 2, an operation switch 4 for commanding the operation of the occupant, and a vehicle engine. An ignition switch 6 for starting and a second temperature sensor 7 for detecting the outside air temperature are main components.

In this example, the window glass 11 moves up and down between an upper fully closed position and a lower fully opened position along a rail (not shown).
The driving means 2 of this example includes a motor 20 having a speed reduction mechanism fixed to the door 10, a lifting arm 21 having a fan-shaped gear 21 a driven by the motor 20, and a pivoting support that crosses the lifting arm 21. The main component is a driven arm 22, a fixed channel 23 fixed to the door 10, and a glass side channel 24 integrated with the window glass 11.

  The motor 20 of this example is supplied with electric power from the control means 3 to energize the windings of the rotor, thereby causing a magnetic attraction action between the rotor and the stator having the magnet, It is configured to rotate forward and reverse. In the driving means 2 of this example, when the elevating arm 21 and the driven arm 22 are swung in accordance with the rotation of the motor 20, these end portions are subjected to sliding restriction by the channels 23 and 24 and are driven as X links. Then, the window glass 11 is moved up and down.

  The motor 20 of this example is integrally provided with a rotation detection device 27. The rotation detection device 27 outputs a pulse signal (rotation speed signal) synchronized with the rotation of the motor 20 to the control means 3. The rotation detection device 27 of this example is configured to detect a magnetic change of a magnet that rotates together with the output shaft of the motor 20 by a plurality of Hall elements. That is, the pulse signal is output for each predetermined movement amount of the window glass 11 or for each predetermined rotation angle of the motor 20. Thereby, the rotation detection device 27 can output a signal corresponding to the movement of the window glass 11 which is substantially proportional to the rotation speed of the motor 20. Then, the control means 3 calculates the moving speed of the window glass 11 (or the rotating speed of the motor 20 proportional to this) by the pulse signal from the rotation detecting device 27.

  In this example, a device using a Hall element is used for the rotation detection device 27. However, the present invention is not limited to this, and an encoder may be used as long as the rotation speed of the motor 20 can be detected. Moreover, in this example, in order to detect the rotational speed of the output shaft of the motor 20 according to the movement of the window glass 11, the rotation detection device 27 is integrally provided in the motor 20. You may make it detect the moving speed of the window glass 11 directly by a means.

The control means 3 of this example includes a controller 31, a drive circuit 32, and a first temperature sensor 33. The controller 31, the drive circuit 32, and the first temperature sensor 33 are supplied with electric power necessary for operation from the battery 5 mounted on the vehicle.
The controller 31 of this example is configured by a microcomputer including a CPU, a memory such as a ROM and a RAM, an input circuit, an output circuit, and the like. The CPU is connected to the memory, input circuit, and output circuit via a bus. The controller 31 is not limited to this, and may be configured by a DSP or a gate array.

  The controller 31 normally opens and closes the window glass 11 by rotating the motor 20 forward and backward via the drive circuit 32 based on the operation signal from the operation switch 4. Further, the controller 31 receives a pulse signal from the rotation detection device 27, and can detect the trapping of a foreign substance between the upper end portion of the window glass 11 and the window frame based on the pulse signal. When it is detected that a foreign object is caught, the controller 31 rotates the motor 20 in the opening direction via the drive circuit 32 to drive the window glass 11 to open. Thus, the controller 31 of this example functions as a pinch detection unit.

  The drive circuit 32 of this example is configured by an IC having an FET, and switches the polarity of power supply to the motor 20 based on an input signal from the controller 31. That is, when receiving a forward rotation command signal from the controller 31, the drive circuit 32 supplies power to the motor 20 so as to rotate the motor 20 in the forward rotation direction, and receives a reverse rotation command signal from the controller 31. Supplies electric power to the motor 20 so as to rotate the motor 20 in the reverse rotation direction. The drive circuit 32 may be configured to switch the polarity using a relay circuit. Alternatively, the drive circuit 32 may be incorporated in the controller 31.

  The controller 31 detects the rising and falling portions (pulse edges) of the pulse signal from the input pulse signal, and calculates the rotational speed (rotation cycle) of the motor 20 based on the interval (cycle) of the pulse edges. At the same time, the rotational direction of the motor 20 is detected based on the phase difference between the pulse signals. That is, the controller 31 indirectly calculates the movement speed of the window glass 11 based on the rotation speed (rotation period) of the motor 20 and specifies the movement direction of the window glass 11 based on the rotation direction of the motor 20. . The controller 31 counts pulse edges. This pulse count value is added or subtracted with the opening / closing operation of the window glass 11. The controller 31 specifies the opening / closing position of the window glass 11 based on the magnitude of the pulse count value.

  The first temperature sensor 33 of this example is provided in the peripheral circuit of the control means 3 and detects the temperature of the motor. An output signal from the first temperature sensor 33 is output to the controller 31, and the controller 31 determines whether or not the temperature of the motor exceeds a predetermined temperature based on the output signal.

The operation switch 4 of this example is composed of a swing type switch that can be operated in two stages, and has an open switch, a close switch, and an auto switch. When the occupant operates the operation switch 4, a command signal for opening and closing the window glass 11 is output to the controller 31.
Specifically, when the operation switch 4 is operated one step toward one end, the opening switch is turned on, and a normal opening command signal for causing the window glass 11 to perform a normal opening operation (that is, an opening operation only during the operation). Is output to the controller 31. Further, when the operation switch 4 is operated one step to the other end side, the closing switch is turned on, and a normal close command signal for causing the window glass 11 to be normally closed (that is, only closed during operation) is a controller. To 31.

  Further, when the operation switch 4 is operated in two steps toward one end, both the opening switch and the auto switch are turned on, and the auto switch for automatically opening the window glass 11 (that is, opening to the fully opened position even if the operation is stopped). An open command signal is output to the controller 31. Further, when the operation switch 4 is operated in two steps to the other end side, both the closing switch and the auto switch are turned on, and the window glass 11 is automatically closed (that is, closed to the fully closed position even if the operation is stopped). Is output to the controller 31.

While receiving the normal opening command signal from the operation switch 4 (while the operation switch 4 is being operated), the controller 31 drives the motor 20 via the drive circuit 32 to normally open the window glass 11. Let On the other hand, the controller 31 drives the motor 20 via the drive circuit 32 while receiving the normal close command signal from the operation switch 4 (while the operation switch 4 is being operated), so that the window glass 11 is normally operated. Close operation.
When the controller 31 receives an auto-open command signal from the operation switch 4, the controller 31 drives the motor 20 via the drive circuit 32 to automatically open the window glass 11 to the fully open position. On the other hand, when receiving an auto close command signal from the operation switch 4, the controller 31 drives the motor 20 via the drive circuit 32 to cause the window glass 11 to automatically close to the fully closed position.

  The ignition switch 6 is an engine ignition device switch and is provided integrally with a steering lock mechanism (not shown), and a vehicle key (not shown) is inserted into a key insertion port (not shown) of a key cylinder (not shown). By turning in and turning, the position is switched to any one of the LOCK position, the OFF position, the ACC (accessory) position, the ON position, and the START position. The ignition switch 6 outputs a switch signal corresponding to the switch position to the controller 31 when switched to any one of these positions. Therefore, the switch position of the ignition switch 6 can be detected by the controller 31.

  Note that the LOCK position of the ignition switch 6 is a position where the steering is locked while the engine is stopped and the steering is locked by the steering lock mechanism. The OFF position is a position where power is not supplied to the electric system of the vehicle while the engine is stopped. The ACC position is a position where the engine is stopped and power for operating accessories such as a car audio is supplied to the electric system of the vehicle. The ON position is a position where electric power is supplied to all electric systems of the vehicle while the engine is operating. The START position is a position for driving the starter motor.

  The second temperature sensor 7 of this example is provided outside the motor 20 and detects the outside air temperature. An output signal from the second temperature sensor 7 is input to the controller 31, and the controller 31 determines whether or not the temperature outside the motor exceeds a predetermined temperature based on this input signal.

When the window glass 11 is closed (normally closed or auto-closed), the controller 31 monitors whether the window glass 11 is caught. That is, when the pinching occurs, the moving speed of the window glass 11 and the rotational speed of the motor 20 are reduced in relation to this (the rotational cycle becomes longer). For this reason, the controller 31 of this example constantly monitors fluctuations in the rotational speed of the motor 20.
The controller 31 of this example first detects the start of pinching based on the fluctuation of the rotation speed, and then determines that pinching has occurred when it detects that the rotation speed fluctuates by a predetermined amount after the start of pinching is detected. (Determine.

  And when it determines with pinching, the controller 31 reversely rotates the motor 20 in order to release the foreign material pinched by the window glass 11, and controls to open the window glass 11 by a predetermined amount.

Next, the characteristics of the motor current will be described with reference to FIGS. FIG. 3A is a graph showing the temperature characteristics of the motor current, P is a change in current, Q is a change in motor rotation speed and idling load, and T is a change in reverse delay time. As shown in the graph, in general, when the motor temperature and the outside air temperature are low, the current is large, and the current decreases as the temperature increases (right side in FIG. 3A). At this time, the rotational speed of the motor 20 and the idling load increase as the temperature increases.
FIG. 4A is a graph showing the voltage characteristics of the motor current, where R represents a change in current, motor rotation speed, and idling load, and T represents a change in reverse delay time. As shown in the graph, generally, when the motor drive voltage increases (right side in FIG. 4A), the current, the rotational speed of the motor 20 and the idling load increase.

5 and 6 show the motor output, current, and pinching load when the motor 20 is reversely rotated instantaneously and when the motor 20 is reversely rotated at regular intervals, respectively. I ₁ is the starting current, I ₂ is the brake current, I ₃ is the reverse starting current, T is the reverse delay time, F ₁ is the load at the time of pinching detection (determination), and F ₂ is the empty after the pinching detection (determination). It is a running load, when point A is detected to start pinching, point B is when pinching is detected (determined), and point C is when rotation reverse driving is started.
As shown in FIG. 5, when reversed the entrapment detection (B point) immediately after the motor 20 it can be seen to approximately 2 times the reverse starting current I ₃ of the starting current I ₁ is generated. On the other hand, as shown in FIG. 6, when the motor 20 is rotated reversely (point C) after a certain interval (reverse delay time T) after pinching detection (point B), the brake current I is stopped by stopping the motor 20. occurs ₂ slightly, then current becomes zero, but reversed starting current I ₃ to reverse the motor 20 is generated, the reverse starting current I ₃ is substantially the same size as the startup current I _1. That is, it is possible to reduce the reverse starting current I ₃ by increasing the inverted delay time T, it is possible to reduce the damage to the drive element of the motor 20.

However, since the empty run operate the power window device 1 between the inverting delay time T, the window glass 11 continues the closing operation, idling-run load F ₂ jamming occurs. Thus the empty run load F ₂ will give an excessive load to those sandwiched become excessive, it is necessary to set the empty run load F ₂ is inverted delay time so as not to excessively T. The size of the free running load F ₂ is the motor temperature and the outside temperature, to increase or decrease by a motor operating environments such as a motor driving voltage, if that has been set the inverted delay time T to reverse the motor 20 at a constant an empty run load F ₂ fluctuates.

Therefore, the power window device 1 of the present example makes the reverse delay time T variable according to the operating environment of the motor, and controls so that the idling load F does not become excessive. Regarding the change in temperature, as shown in FIG. 3B, the inversion delay time T is decreased in accordance with the increase in the motor temperature and the outside air temperature. When the temperature is low, the current flowing to the motor and the drive element increases and the operating speed also decreases. Therefore, the damage to the drive element can be reduced by slowing the energization of the reverse drive. That is, by increasing the inversion delay time T, the inversion starting current is reduced and the drive element can be protected. In this case, the trapping load according to the idling operation of the power window device 1 is concerned, when the temperature is low because the rotation speed of the motor 20 is small, not to increase free running load F ₂ is also excessive.

On the other hand, when the temperature is high, the reverse activation current is small even if the inversion delay time T is reduced, so that the drive element can be protected. Also, it does not increase excessively even empty run load F ₂ by the air-fuel run operation of the power window device 1.
In the power window device 1 of this example, the controller 31 receives the output signal from the first temperature sensor 33 and detects the motor temperature. Further, the controller 31 receives an output signal from the second temperature sensor 7 and detects the outside air temperature.

Regarding the change of the drive voltage, as shown in FIG. 4B, the inversion delay time T is increased as the voltage increases. When the drive voltage is low, the voltage applied to the drive element is also low, so that damage to the drive element can be reduced even if the start of energization for reverse driving is accelerated.
In the power window device 1 of this example, the power supplied from the battery 5 is supplied to the motor 20 via the controller 31 and the drive circuit 32. The voltage and current supplied to the motor 20 are supplied by the controller 31. To detect.

In general, when the engine is running, that is, the battery voltage is high, the driver (adult) is often in or near the vehicle. In contrast, the engine is not applied, i.e. in a state in the battery voltage is low, since there is a possibility that children are alone in the vehicle, to reduce empty run load F ₂ by reducing the inverted delay time T, By suppressing the increase in the pinching load, it is possible to improve the safety against a child pinching accident.

  Instead of switching the inversion delay time T by voltage, switching by an ignition switch signal may be performed. The ignition switch signal is detected by the controller 31. When the ignition switch 6 is in the OFF position, the drive voltage is lower than when the engine is running, and the voltage applied to the drive element is also low. Therefore, even if the inversion delay time T is reduced, damage to the drive element can be reduced. Conversely, when the ignition switch is in the ON position, the driving voltage is high and the voltage applied to the driving element is also high, so that the inversion delay time T can be increased to reduce damage to the driving element.

Next, the inversion delay time control process by the controller 31 of this example will be described with reference to FIG. The controller 31 repeats this process every predetermined time.
First, the controller 31 detects a drive voltage based on electric power supplied from the battery 5 and signals input from the first temperature sensor 33 and the second temperature sensor 7 (step S1). Information on the detected voltage and temperature is stored in the memory of the controller 31. In the power window device 1 of this example, two temperature sensors, a first temperature sensor 33 that detects the motor temperature and a second temperature sensor 7 that detects the outside air temperature, are provided as temperature sensors. In this case, a signal from one of the temperature sensors provided is detected in step S1.

  Next, it is determined whether or not the operation switch 4 is turned on (step S2). If the operation switch 4 is not turned on (step S2; No), the processing is ended as it is. On the other hand, when the operation switch 4 is on (step S2; Yes), the motor 20 is driven to rotate forward, and the window glass 11 as the opening / closing body is raised (closed) (step S3).

  Then, it is determined whether or not there is a foreign object in the window glass 11 (step S4). The determination of the presence or absence of pinching is determined to be pinching when it is detected that the rotational speed of the motor 20 has changed by a predetermined amount. When there is no pinching (step S4; No), it progresses to step S9. If it is determined that there is jamming (step S4; Yes), the voltage and temperature detected in step S1 are compared with the judgment voltage and judgment temperature set in advance for judgment criteria (step S5).

  The preset judgment voltage and judgment temperature are values serving as a reference for determining the inversion delay time T. This is a reference value for determination to set the inversion delay time T small when the current driving voltage is smaller than the determination voltage, and to set the inversion delay time T large when the driving voltage is larger than the determination voltage. . Further, when the current motor temperature or the outside air temperature is smaller than the judgment temperature, the inversion delay time T is set large. When the motor temperature or the outside air temperature is larger than the judgment temperature, the inversion delay time T is set small. This is the reference value for judgment. In this example, a small set value of the inversion delay time T is T1, and a large set value is T2.

  As a result of comparing the voltage and the temperature with the judgment voltage and the judgment temperature in step S5, respectively, if the voltage is lower than the judgment voltage or the temperature is higher than the judgment temperature (step S5; Yes), the inversion delay time T is set. Wait until T1 has elapsed as T1 (step S6). On the other hand, when the voltage exceeds the determination voltage and the temperature is lower than the determination temperature (step S5; No), the inversion delay time T is set to T2 and the process waits until T2 elapses (step S7). These T1 and T2 are predetermined times, and T1 is an operating environment in which the reverse starting current does not damage the drive element even if the reverse delay time T is reduced. This is the inversion delay time. T2 is an inversion delay time in an operating environment in which the inversion delay time is increased to suppress the reverse rotation starting current so that the amount of current does not damage the drive element.

  After the reverse delay time T1 or T2 has elapsed in step S6 or step S7, the motor 20 is driven in reverse to operate the window glass 11 to be lowered (opened) (step S8). Thereafter, for example, it is determined whether or not a drive stop condition is satisfied, for example, the window operation switch 4 is turned off or the opening operation is performed by a predetermined amount by reverse rotation driving (step S9). If the drive stop condition is satisfied (step S9; Yes), the drive of the motor is stopped (step S10) and the process is terminated. On the other hand, when the drive stop condition is not satisfied (step S9; No), the motor is continuously driven until the drive stop condition is satisfied (step S11), and the process is terminated.

  As described above, in the power window device 1 of this example, the operating environment of the motor, such as the driving voltage, the motor temperature, and the outside air temperature, is detected, and the motor is reversed after detecting pinching according to the operating environment. Time (inversion delay time T) is variable. By setting the reverse delay time T according to the operating environment in this way, it is possible to suppress an excessive amount of reverse starting current, to suppress the pinching load at the time of pinching detection, and not to damage the driving element. It is possible to achieve both protection.

  In the above embodiment, the drive voltage, the motor temperature, and the outside air temperature are detected and compared with the determination criteria as detection of the operating environment of the motor. However, even if the inversion delay time T is determined by the ignition switch signal. Good. Further, the reverse delay time T may be determined by detecting the amount of current flowing through the motor. For detection of these operating environments, the inversion delay time T may be determined based on any one of the detection results, or the inversion delay time T may be determined by detecting a combination of a plurality of detection results. In the case where a plurality of operating environments are detected in combination, the inversion delay time T can be determined when at least one of the plurality of operating environments reaches a predetermined determination reference value.

It is explanatory drawing of the power window apparatus which concerns on one Embodiment of this invention. It is an electrical block diagram of the power window apparatus of FIG. It is a graph showing the inversion delay time according to the temperature characteristic of motor current, and temperature. It is a graph showing the inversion delay time according to the voltage characteristic and voltage of a motor current. It is a graph showing the change of motor output, electric current, and pinching load when a motor is reversely rotated instantaneously. It is a graph showing the change of a motor output, an electric current, and a pinching load when a motor is reversely rotated at fixed intervals. It is a processing flow of inversion delay time control.

Explanation of symbols

1. Power window device 2. Drive means 3. Control means 4. Operation switch
5 ... Battery, 6 ... Ignition switch, 7 ... Second temperature sensor,
10 ... door, 11 ... window glass,
20... Motor, 21... Lifting arm, 21a... Gear, 22.
23 ... Fixed channel, 24 ... Glass side channel, 27 ... Rotation detector,
31 ... Controller, 32 ... Drive circuit, 33 ... First temperature sensor

Claims (6)

An opening / closing body control device comprising: a motor that drives the opening / closing body to open / close; and a pinching detection means that detects pinching of foreign matter by the opening / closing body during opening / closing driving, and reversely drives the motor when pinching is detected by the pinching detection means In
The pinching detection means detects an operating environment of the motor, and controls to vary the time from when pinching is detected until the motor is driven in reverse rotation according to the detected operating environment. Opening and closing body control device.   2. The opening / closing body control device according to claim 1, wherein the operating environment is a driving voltage of the motor.   The opening / closing body control device according to claim 1, wherein the operating environment is an outside air temperature.   The opening / closing body control device according to claim 1, wherein the operating environment is a temperature of the motor.   The opening / closing body control device according to claim 1, wherein the operating environment is an ignition switch signal of a vehicle.   The opening / closing body control device according to claim 1, wherein the operating environment is a current of the motor.

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