JP2020033765A - Opening/closing member control device and motor with control device - Google Patents

Abstract

To provide an opening/closing member control device that can prevent a full close failure for an opening/closing member.SOLUTION: A control unit performs origin setting processing to set a position where the rotation of a motor is constrained during close operation as an origin Ps, blockage determination processing to determine the occurrence of foreign matter being caught in areas (blockage detection section A2) other than a mask section A1, and soft stop processing to stop supplying electricity to the motor on the basis of a decrease in the speed of the motor before the rotation of the motor during close operation is constrained in a soft stop section A3. The control unit nullifies the soft stop processing for the next close operation in a case where a constraint position when the rotation of the motor during close operation is constrained in the mask section A1 deviates, by a set value or more, to the open direction from the origin Ps that is stored at that point.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an opening / closing member control device for a vehicle and a motor with a control device.

  For example, as disclosed in Patent Literature 1, there is a power window device for a vehicle that has an anti-entrapment function for preventing an entrapment of foreign matter by a window glass at the time of a closing operation. In such a power window device, it is detected that the operation of the window glass is obstructed by a foreign matter from a change in the rotation speed of the motor as a drive source or the like, and the motor is stopped or reversely driven based on the foreign matter detection. Thus, the load on the foreign matter is reduced.

  By the way, in the above-described power window device, the position where the rotation of the motor is restricted during the closing operation (mechanical lock position) is recognized as the origin position (fully closed position). Then, in order to prevent the determination of the pinching of foreign matter when the window glass during the closing operation comes into contact with the weather strip or the like on the upper portion of the window frame, a predetermined position on the opening direction side (lower side) from the origin position. The section up to is a mask section in which the entrapment determination is not performed.

JP 2014-34831A

  In the power window device as described above, in order to prevent the upper end of the window glass from colliding with the window frame each time the window glass is closed, a section near the origin position (a section included in the mask section). It is desirable to perform a stop process (so-called soft stop process) for stopping the power supply to the motor based on the decrease in the speed of the motor. By performing this processing, while the upper end of the window glass enters the weather strip (that is, the window frame is closed with the window glass), the motor is moved before the upper edge of the window glass collides with the window frame. Can be stopped.

  However, in the control device for performing the soft stop process, when a foreign object is caught in the mask section, the constraint position of the motor due to the caught is updated as the origin position, so the soft stop process set based on the origin position is performed. Is shifted toward the opening direction from the desired position. Then, the operation of the window glass is stopped by the soft stop process, for example, in a state where a part of the upper end of the window glass does not enter the weather strip (that is, the window frame is not completely closed). There is a possibility that poor closing failure may occur.

  SUMMARY An advantage of some aspects of the invention is to provide an opening / closing member control device and a motor with a control device that can suppress a closing failure of the opening / closing member.

  An opening / closing member control device for solving the above-mentioned problem includes a control unit (6) that controls driving of a motor (M) for opening and closing an opening / closing member (WG) of a vehicle, and the control unit is configured to perform the control during the closing operation. An origin position setting process for setting the position where the rotation of the motor is restricted as the origin position (Ps), and a section excluding the mask section (A1) from the origin position to the first set position (P1) on the opening direction side ( A2), a pinch determination process for determining the occurrence of a pinch of a foreign object based on the drive information of the motor during the closing operation, and a second set position (P2) set between the origin position and the first set position. ) To the origin position (A3), before the rotation of the motor during the closing operation is restrained, a soft stop process of stopping the power supply to the motor based on a decrease in the speed of the motor is executed. Do When the rotation of the motor is constrained in the mask section during the closing operation, the constrained position is preset with respect to the origin position stored at that time. If it is shifted to the opening direction by more than the set value (Py), the soft stop process is invalidated at the next closing operation.

  According to the above aspect, when the original point position is shifted to the opening direction side and updated due to pinching of a foreign substance in the mask section, the soft stop processing can be invalidated at the next closing operation. For this reason, it is possible to suppress the occurrence of a closing failure in which the closing operation of the opening / closing member is stopped by the soft stop process before the closing of the opening / closing member.

According to a motor with a control device for solving the above-mentioned problems, the above-mentioned opening / closing member control device is provided integrally with a motor (M) for opening and closing the opening / closing member (WG).
According to the above aspect, in the motor with the control device integrally including the opening / closing member control device, it is possible to suppress the occurrence of the closing failure in which the closing operation of the opening / closing member is stopped by the soft stop process before the closing of the opening / closing member.

FIG. 1 is a schematic configuration diagram of a power window device according to an embodiment. FIG. 3 is a schematic diagram for explaining drive control of the window glass in the same embodiment. Explanatory drawing for demonstrating the soft stop process in the same form. FIG. 4 is a flowchart for explaining processing of a control unit when the window glass of the same form is closed.

Hereinafter, an embodiment of an opening / closing member control device and a motor with a control device will be described.
As shown in FIG. 1, a window glass WG as an opening / closing member is provided on the vehicle door D so as to be vertically movable. The motor M of the power window device 1 is drivingly connected to the window glass WG via a regulator R such as a wire type or an X arm type. Further, the motor M is a motor with a control device integrally provided with a control device 5 such as a power window ECU for controlling the motor M.

  The power window device 1 includes a rotation detection sensor 2 such as a Hall IC that detects the rotation of the motor M. The control device 5 includes a control unit 6 that supplies power of the vehicle battery 4 to the motor M based on a signal from the rotation detection sensor 2 and a signal from the operation switch 3. The rotation detection sensor 2 outputs a pulse signal corresponding to the rotation of the motor M to the control unit 6. The control unit 6 performs various controls while grasping the position and speed of the window glass WG based on the input pulse signal, and controls the driving of the motor M.

  More specifically, when the operation switch 3 provided on the vehicle door D is operated, the control unit 6 controls the driving of the motor M so as to open and close (ie, move up and down) the window glass WG in accordance with the operation.

  Here, the control unit 6 determines whether or not foreign matter has been caught in the window glass WG during the closing operation based on the drive information of the motor M (for example, the rotation speed and the current value). Is performed, a pinch detection process for controlling the driving of the motor M to stop or reverse the window glass WG is performed.

  Further, when the window glass WG is closed (ie, moved upward), the control unit 6 reaches the fully closed position (ie, the mechanical limit position at the end of the movable range) and restricts the rotation of the motor M. Then, the lock current due to the restraint is detected, and the energization to the motor M is stopped (lock stop processing).

  As shown in FIG. 2, the control unit 6 performs an origin position setting process of setting a position where the rotation of the motor M is restricted and the lock current is detected as the origin position Ps. Then, as the position information of the window glass WG recognized by the control unit 6, as the window glass WG is operated in the opening direction, the count number based on the pulse signal from the rotation detection sensor 2 is added to the origin position Ps. Go.

  The control unit 6 sets a section from the origin position Ps to the first set position P1 on the opening direction side (that is, the lower side) as a mask section A1 in which the entrapment detection process is not performed. Note that the length of the mask section A1 is constant even when the origin position Ps changes. In addition, even when the origin position Ps is changed, the lower end position of the mask section A1 is set to be located several millimeters below the lower end, which is the opening-side end of the weather strip Da above the window frame. Note that the origin position Ps that is reset (updated) by the lock stop process may fluctuate according to a change in temperature or a voltage value of the vehicle battery 4. Further, the control unit 6 executes the entrapment detection process in a section other than the mask section A1 (entrapment detection section A2).

  Further, when the window glass WG in the closing operation approaches the origin position Ps, the control unit 6 stops energizing the motor M before the window glass WG reaches the upper part of the window frame (the mechanically movable limit position). Execute the soft stop process.

  To describe the soft stop processing in detail, the control unit 6 sets a section from the origin position Ps to the second set position P2 on the opening side (ie, the lower side) as a soft stop section A3. Further, a section between the first set position P1 and the origin position Ps set at a position separated from the origin position Ps with respect to the second set position P2 (a position on the opening side of the second set position P2) is a mask section. A1. Therefore, the length of the soft stop section A3 is shorter than the length of the mask section A1, and the second set position P2 which is the lower end position of the soft stop section A3 is shorter than the first set position P1 which is the lower end position of the mask section A1. Are also set on the closing direction side (upper side). Note that the length of the soft stop section A3 is constant even when the origin position Ps changes.

  As shown in FIG. 3, in the soft stop section A3, the control unit 6 stops the energization to the motor M in response to a decrease in the rotation speed of the motor M during the closing operation based on a signal from the rotation detection sensor 2. . As a result, the power supply to the motor M is stopped by the deceleration of the motor M due to the resistance when the window glass WG slides on the weather strip Da, so that the window glass WG reaches the end of the movable range and the rotation of the motor M is stopped. The power supply to the motor M can be stopped before being restrained. Therefore, the upper end of the window glass WG collides with the window frame (the end of the movable range) while the entire upper end of the window glass WG enters the weather strip Da (the state in which the window glass WG has completely closed the window frame). Before the operation, the motor M is stopped to suppress generation of abnormal noise.

Next, a control mode of the control unit 6 during the closing operation of the window glass WG will be described with reference to a flowchart of FIG.
When starting the closing operation of the window glass WG based on the signal from the operation switch 3, the control unit 6 calculates the rotation speed of the motor M in step S1, and counts the position information of the window glass WG in the next step S2. I do.

  Thereafter, in step S3, the control unit 6 determines whether or not the window glass WG is located within the mask section A1. Here, when the window glass WG is located in the mask section A1, the process of the control unit 6 proceeds to step S4. On the other hand, when the window glass WG is positioned outside the mask section A1 (that is, positioned in the pinch detection section A2), the process of the control unit 6 proceeds to step S13.

In step S13, the control unit 6 performs the above-described pinch detection process. Here, if the detection of the foreign object is not detected, the process returns to step S1.
On the other hand, when the foreign matter is detected to be caught, the driving of the motor M is temporarily stopped in step S14, and the motor M is driven in reverse to open the window glass WG in the next step S15. Thereafter, when the moving amount of the opening operation of the window glass WG reaches a predetermined amount in step S16, the driving of the motor M is stopped in step S12.

  In step S4 after it is determined in step S3 that the window glass WG is positioned within the mask section A1, the control unit 6 turns on the reset flag Fr for invalidating the soft stop process described above. It is determined whether or not. Here, when the reset flag Fr is on, the process skips step S5 of the necessity determination of the soft stop process described later and shifts to step S6 of the necessity determination of the lock stop process.

  On the other hand, if the reset flag Fr is off in step S4, the process proceeds to step S5 for determining whether or not the soft stop process is necessary. In step S5, when the window glass WG is in the soft stop section A3, the control unit 6 determines whether or not the soft stop processing is necessary based on the speed decrease of the motor M. When it is determined that the soft stop process is necessary, the process proceeds to step S12, and the control unit 6 stops driving the motor M.

  On the other hand, if it is determined in step S5 that the soft stop process is not necessary, the control unit 6 proceeds to step S6 and determines whether the lock stop process is necessary based on the detection of the lock current. Here, when it is determined that the lock stop processing is unnecessary, the control unit 6 returns to the step S4.

  On the other hand, if it is determined in step S6 that the lock stop process is necessary, the control unit 6 proceeds to step S7, and performs a process of resetting (updating) the position of the window glass WG at that time as the origin position Ps.

  Thereafter, in step S8, the control unit 6 calculates a shift amount Px between the reset origin position Ps and the origin position Ps immediately before the reset. When the shift amount Px is a positive value, it indicates that the origin position Ps after reset is shifted toward the opening direction with respect to the original position Ps before reset.

  Thereafter, in step S9, the control unit 6 determines whether or not the deviation amount Px is equal to or larger than a preset value Py. That is, the control unit 6 determines whether or not the home position Ps after the reset is displaced from the home position Ps before the reset to the opening direction side by the set value Py or more. The set value Py is set to a value larger than the displacement of the constraint position of the motor M (that is, the reset position of the origin position Ps) which may be caused by the voltage fluctuation of the vehicle battery 4.

  If the deviation amount Px is equal to or greater than the set value Py in step S9, the control unit 6 turns on the reset flag Fr (step S10). On the other hand, if the deviation amount Px is smaller than the set value Py in step S9, the control unit 6 turns off the reset flag Fr (step S11).

  After turning on the reset flag Fr in step S10 or turning off the reset flag Fr in step S11, the control unit 6 proceeds to step S12 to stop driving the motor M.

The operation of the present embodiment will be described.
During the closing operation of the window glass WG, in the section from entering the mask section A1 to entering the soft stop section A3, the lock stop processing is executed based on the rotation constraint of the motor M due to the pinching of the foreign matter, and the origin position Ps May be reset. At this time, if the origin position Ps after the reset deviates from the origin position Ps before the reset by more than the set value Py in the opening direction, the reset flag Fr is turned on. Thus, at the next closing operation of the window glass WG, the soft stop process (step S5) is invalidated in step S4. Then, in the closing operation in which the soft stop processing is disabled, when the window glass WG reaches the fully closed position (that is, the mechanical limit position at the end of the movable range) and the lock stop processing is executed, the origin position is set. Ps is reset to an appropriate position, and the reset flag Fr is turned off.

The effect of the present embodiment will be described.
(1) The controller 6 performs an origin position setting process of setting a position where the rotation of the motor M is restricted during the closing operation as the origin position Ps. In addition, the control unit 6 closes in the section excluding the mask section A1 from the origin position Ps to the first setting position P1 on the opening direction side (that is, the entrapment detection section A2 set on the opening direction side of the mask section A1). An entrapment determination process is performed to determine the occurrence of entrapment of a foreign object based on the drive information of the operating motor M. Further, the control unit 6 restricts the rotation of the motor M during the closing operation in the soft stop section A3 from the second set position P2 set between the origin position Ps and the first set position P1 to the origin position Ps. Before the operation, a soft stop process for stopping the power supply to the motor M based on the decrease in the speed of the motor M is performed.

  When the rotation of the motor M is restricted in the masking section A1 during the closing operation, the control unit 6 determines that the restricted position is equal to or more than the set value Py with respect to the origin position Ps stored at that time, and is in the opening direction. If it is shifted to, the soft stop processing is invalidated at the next closing operation. Accordingly, when the origin position Ps is updated to be shifted to the opening direction side due to pinching of a foreign substance in the mask section A1, the soft stop processing can be invalidated at the next closing operation. For this reason, it is possible to suppress the occurrence of a closing failure in which the closing operation of the window glass WG is stopped by the soft stop process before the closing of the window glass WG.

  (2) The set value Py is set to a value larger than the deviation of the restraint position (reset position of the origin position Ps) of the motor M, which may be caused by the voltage fluctuation of the vehicle battery 4 supplying power to the motor M. Thereby, it is possible to prevent the soft stop process from being invalidated when the origin position Ps is shifted due to the voltage fluctuation of the vehicle battery 4.

This embodiment can be implemented with the following modifications. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
The flow of the control unit 6 of the above embodiment is an example, and if the flow is such that the next soft stop process can be invalidated when the deviation amount Px is equal to or greater than the set value Py, the flow is changed to a mode other than the above embodiment. It is possible.

  -In the flow of the control part 6 of the said embodiment, steps S14-S16 may be omitted. That is, when the foreign matter is detected in step S13, the motor M may be stopped without being driven in reverse.

  In the lock stop processing of the above embodiment, the restriction on the rotation of the motor M is detected based on the lock current. However, the restriction on the rotation of the motor M may be detected based on the rotation speed of the motor M. For example, when a state where there is no change in the pulse signal input from the rotation detection sensor 2 continues for a predetermined time, the control unit 6 may recognize that the rotation of the motor M is restricted.

  In the above embodiment, the control device 5 including the control unit 6 is provided integrally with the motor M and fixed to the vehicle door D. However, the present invention is not limited to this. May be provided at a position separated from each other to drive and control the motor M.

  In the above embodiment, the present invention is embodied in the power window device 1 of the vehicle. However, the present invention is not limited to this, and may be embodied in a sunroof device or a sliding door device of the vehicle.

  WG: window glass (opening / closing member), M: motor (motor with control device), 4: vehicle battery, 5: control device (opening / closing member control device), 6: control unit, Ps: origin position, Py: set value, P1: first setting position, P2: second setting position, A1: mask section, A2: pinch detection section, A3: soft stop section.

Claims (3)

A control unit (6) for controlling driving of a motor (M) for opening and closing an opening / closing member (WG) of the vehicle;
The control unit includes:
Origin position setting processing for setting a position where the rotation of the motor is restricted during the closing operation as an origin position (Ps);
In the section (A2) excluding the mask section (A1) from the origin position to the first set position (P1) on the opening direction side, it is determined whether foreign matter has been caught based on the drive information of the motor during the closing operation. Entrapment determination processing,
In a section (A3) from the second set position (P2) set between the origin position and the first set position to the origin position, before the rotation of the motor during the closing operation is restrained, A soft-stop process for stopping energization of the motor based on a decrease in the speed of the motor; and
When the rotation of the motor is restrained in the mask section during the closing operation, the control unit determines that the restrained position is equal to or more than a set value (Py) preset with respect to the origin position stored at that time. An opening / closing member control device for disabling the soft stop processing at the time of the next closing operation when the opening / closing member is displaced toward the opening direction.   2. The opening / closing member control device according to claim 1, wherein the set value is set to a value larger than a shift of the restrained position that may be caused by a voltage change of a vehicle battery (4) that supplies power to the motor.   A motor with a control device, wherein the motor (M) for opening and closing the opening and closing member (WG) is provided integrally with the opening and closing member control device according to claim 1 or 2.