JPH07180433A - Power window controller - Google Patents

Abstract

PURPOSE:To inform a driver of a fact that an initial setup is not yet performed and simultaneously to perform a relative positional detection of a windowpane which made its full-close position a base point after the initial setting. CONSTITUTION:When a close switch 3 is turned on before the initial setting, an initial setting output generating means 16, generating an initial setting output, is installed in a control means 7. In this constitution, a position counter 8 is reset at a full-close position of a windowpane 30 after making it perform an inching movement by the initial setting out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window control device used for controlling the operation of a windshield by detecting the current position of the windshield driven by a motor.

[0002]

2. Description of the Related Art Conventionally, as a power window control device for controlling the operation of the window glass by relatively detecting the current position of the window glass, a controller for opening the window glass when an open switch is turned on. It is known that a current is supplied to the motor, and conversely, when the close switch is turned on, the controller supplies the motor with a current for closing the window glass. When the motor rotates, a pulse signal proportional to the number of rotations is generated from the motor rotation sensor.Therefore, the controller uses the value corresponding to the fully closed position of the window glass as the base point according to the number of pulse signals The current position is detected, and the load on the windshield is detected relatively by detecting the period of the pulse signal within a certain period of time. Since, the area below that is set as the inversion area. If the window glass is caught in the reversing area when the window is moving toward the fully closed position due to the closing switch being turned on, the controller will detect that the window glass is in the reversing area. In order to detect the entrapment by detecting the load on the glass, the reversed current for opening the window glass is supplied to the motor to eliminate the entrapment. When the windshield reaches the fully closed position by turning on the close switch, the controller indicates that the current position of the windshield is the fully closed position, and the windshield is prevented from moving at the fully closed position by the vehicle body. By doing so, the current supply for closing the windshield is stopped to detect that the windshield is under load.

[0003]

In the conventional power window control device described above, the read / write memory (RAM) built in the controller is erased by shutting off the supply of a predetermined current to the controller when the battery runs down. If this is done, it may cause a deviation in the value of the inversion area of the windshield that is relatively recognized, and when the battery is newly connected after that, the occupant is informed that the initial setting has not been made. Since there is no means, there is a problem that it is difficult to say that an accurate reversing operation can be performed even if pinching occurs by the wind glass in the reversing region in the state where the initial setting is not made, and the above-mentioned problems are solved. That was a challenge.

[0004]

SUMMARY OF THE INVENTION A power window control device according to the present invention notifies an occupant that an initial setting has not been made when the initial setting has not been made, and also causes the occupant to perform the initial setting to detect the relative position of the windshield. It is an object of the present invention to provide a power window control device that accurately performs detection of pinching.

[0005]

[Constitution of the invention]

[0006]

A power window control device according to the present invention is connected to a window glass and an open switch for generating an open command signal by an on operation, a close switch for generating a close command signal by an on operation. The motor that has an output shaft and that rotates the output shaft to move the window glass within the stroke between the fully closed position and the fully open position, and the current for opening the window glass based on the ON operation of the open switch. A drive means for supplying the motor with a current for closing the window glass on the basis of the ON operation of the close switch, and a pulse generating means for generating a pulse signal corresponding to the rotation of the output shaft of the motor, The current position of the windshield is relatively monitored by the pulse signal from the pulse generator. A current position memory having a pulse position counter, a pulse cycle timer for detecting the current cycle time of the output shaft by a pulse signal, and a jogging timer for setting a jogging time for intermittently supplying a current to the motor, and Position reference value storage means for presetting a position reference value corresponding to the vicinity of the fully closed position within the stroke of the window glass, and preset reference time storage for a pulse cycle reference time corresponding to the reference rotation speed of the output shaft. And a control means having an initial setting output generating means for generating an initial setting output when a close command signal is generated from the close switch before the initial setting. When the initial setting output is generated from the output generating means, the window closing output for closing the window glass for the driving means is inching. When the window glass reaches the fully closed position due to the inching time set by the timer, the current supply to the motor is stopped, the position counter is reset, and the position counter is reset by the initial setting output, then closed. When the close command signal is generated from the switch, the count of the position counter is larger than the position reference value of the position reference value storage means and the current cycle time of the pulse cycle timer is larger than the pulse cycle reference time of the reference time storage means. It is characterized in that a window opening output for opening the window glass is generated in the driving means when they become equal or equal to each other. In the embodiment adopted as necessary, the control means is the initial setting output generating means. When more initial setting output occurs, the window closing output for closing the window glass on the drive means Further, the window opening output for opening the window glass on the driving means is generated within the inching time set by the inching timer.

[0007]

The power window control device according to the present invention sets the window closing output for closing the window glass for the driving means by the inching timer when the closing switch is turned on in the state where the initial setting is not made. When the windshield reaches the fully closed position for a certain period of time, the current supply to the motor is stopped and the position counter is reset.Therefore, the initial setting is not made when the close switch is turned on. The position counter is set to zero count based on the fully closed position of the windshield, and thereafter the relative position of the windshield is detected by counting from the fully closed position of the windshield. After the position counter is reset, the close command signal is sent from the close switch. When the count of the position counter is larger than the position reference value of the position reference value storage means and the current cycle time of the pulse cycle timer is larger than or equal to the pulse cycle reference time of the reference time storage means, the window is displayed. The window opening output for opening the window glass, which is contrary to the close command signal, is sent to the drive means by recognizing that the glass is caught.

[0008]

1 to 5, there is shown an embodiment of a power window control device according to the present invention. FIG. 1 is a functional block configuration diagram, and FIGS. It is a flow chart explaining operation. 5 is an interrupt routine executed when a motor pulse signal is generated while the routines shown in FIGS. 2, 3 and 4 are being executed.

The power window control device 1 according to the present invention is mainly composed of an open switch 2, a close switch 3, a motor 4, a driving means 5, a motor pulse generating means 6 and a control means 7. Is a position counter 8, a pulse cycle timer 9, an inching timer 10,
A current value memory 12 having a position buffer 11, a position reference value storage means 13, a reference value memory 15 having a reference time storage means 14, and an initial setting output generating means 16 are provided.

The open switch 2 is attached to the armrest portion of the driver's door and the center console,
When turned on by an occupant, an open command signal for opening the window glass 30 is generated. The open command signal generated by the ON operation of the open switch 2 is replaced by the input interface a and sent to the control means 7, and is written in a predetermined address in a microcomputer, which will be described later, provided in the control means 7.

The close switch 3 is the open switch 2
Like the above, it is attached to the armrest portion of the driver's door and the center console, and when it is turned on by an occupant, it generates a close command signal for closing the window glass 30. The close command signal generated by the ON operation of the close switch 3 is replaced by the input interface a and sent to the control means 7, and written in a predetermined address in the microcomputer provided in the control means 7.

Since the motor 4 is provided with the output shaft 4a connected to the window glass 30, when the output shaft 4a rotates in the forward direction by supplying a current in the forward direction, the window glass 30 is moved from the fully closed position to the fully opened position. During this period, the window glass 30 is moved toward the fully open position, and when the output shaft 4a is reversely rotated by supplying the electric current in the opposite direction, the window glass 30 is moved toward the fully closed position. A motor pulse generating means 6 corresponding to a pulse generating means is coupled to the output shaft 4a of the motor 4,
Is supplied with a current from the driving means 5 described later.

The motor pulse generator 6 generates a pulse signal proportional to the rotation speed of the output shaft 4a when the output shaft 4a of the motor 4 rotates, and does not generate a pulse signal unless the output shaft 4a of the motor 4 rotates. . The pulse signal generated by the motor pulse generation means 6 is replaced by the input interface a and sent to the control means 7, and is recognized by the control means 7.

The driving means 5 is a power source connecting means including a relay and the like, and supplies a forward current to the motor 4 by replacing the window opening output generated by the control means 7 described later via the output interface b. On the contrary, the window closing output generated by the control means 7 is replaced via the output interface b, thereby supplying the motor 4 with a reverse current.

On the other hand, the control means 7 includes a read / write memory (RAM) and a read-only memory (RO) as needed.
M) is provided, and the current value memory 12 including the position counter 8, the pulse period timer 9, the inching timer 10, and the position buffer 11 is a write / read memory at any time in the microcomputer. A reference value memory 15 having a position reference value storage means 13 and a reference time storage means 14 is a read-only memory, and an initialization output generating means 16 is built in the microcomputer.

The position counter 8 is a motor pulse generating means 6
Pulse signal generated by the input interface a
When the data is sent via, the count number is written in a predetermined address. The count at this time is set to a zero count corresponding to the base point when the window glass 30 reaches the fully closed position, and when the window glass 30 moves from the fully closed position to the fully open position. The pulse signal number is counted up at any time, and the pulse signal number is counted down when the window glass 30 moves from the fully open position to the fully closed position.

The pulse cycle timer 9 detects the cycle of the pulse signal generated by the motor pulse generator 6 within a predetermined time to write the current cycle time of the window glass 30 into a predetermined address in the microcomputer.

The inching timer 10 starts its operation when an initial setting output is generated from an initial setting output generating means 16 which will be described later, and the first timer time is exceeded after a predetermined first timer time T1 is exceeded. It has a function of intermittently supplying a current to the motor 4 until it reaches a second timer time T2 that is predetermined as longer than T1. When the initial setting output is generated by the initial setting output generating means 16, the inching timer 10 repeats its operation while the initial setting output is generated.

The position buffer 11 has a function of temporarily storing the count of the pulse signal written by the position counter 8 in the microcomputer.

The position reference value storage means 13 sets a value corresponding to the vicinity of the fully closed position within the stroke between the fully closed position and the fully opened position of the window glass 30 as a position reference value in a predetermined storage area in the microcomputer. I remember. Here, the value corresponding to the vicinity of the fully closed position is a dimension that occurs on the fully closed position side of the window glass 30 when a finger or the like is caught in the window glass 30 while moving toward the fully closed position. Corresponds to a smaller value. Since the position reference value stored by the position reference value storage means 13 is a value corresponding to the vicinity of the fully closed position in the stroke of the window glass 30, the position reference value is set at an almost intermediate position in the stroke from the fully closed position to the fully opened position. A range from the corresponding value to the position reference value is set as a reversal region for reversing and driving the motor 4 when a pinch occurs.

The reference time storage means 14 stores a pulse period reference time, which is predetermined as a value corresponding to the reference rotation speed when the output shaft 4a of the motor 4 rotates in a steady state, in a predetermined storage area in the microcomputer. is doing.

The initial setting output generating means 16 generates a close command signal by turning on the close switch 3 by an occupant when the initialization flag is not written at a predetermined address in the microcomputer and the close command signal is generated in the microcomputer. When it is written to a predetermined address of, the initial setting output is generated.

The control means 7 issues a close command by turning on the close switch 3 by the occupant after the power for program execution is turned on in a state where the initialization flag is not written at a predetermined address in the microcomputer. When a signal is generated and written to a predetermined address in the microcomputer, the initialization output generation means 16 generates an initialization output, so that the inching timer 10 is started to operate and the initialization output is generated. A window closing output for closing the window glass 30 is repeated by repeating an operation in which the inching timer 10 is reset after a predetermined first timer time T1 and a second timer time T2 have elapsed in correspondence with time. Since the motor 4 is intermittently supplied through a predetermined rest time, the wind When the window glass 30 reaches the fully closed position by intermittently moving the window 30 toward the fully closed position, the current cycle time written at a predetermined address in the microcomputer by the pulse cycle timer 9 is the reference time. When the pulse period reference time stored in the storage means 14 becomes smaller than the reference time, the current supply to the motor 4 is stopped, and the position counter 8 resets the count written in the predetermined address of the microcomputer until that time. At the same time, the initialization flag is written by writing the initialization flag to a predetermined address. At this time, the window closing output for closing the window glass 30 and the window opening output for opening the window glass 30 are intermittently applied to the motor 4 by the inching timer 10 for a predetermined pause time by the initial setting output. It may be supplied, and in this case, it is preferable to set the window closed output for a longer time than the window open output. Due to the generation of the initial setting output, the window closing output for closing the window glass 30 and the window opening output for opening the window glass 30 cause the window glass 30 to be slightly moved to the fully closed position and then slightly toward the fully opened position. The window glass 30 reaches the fully closed position by repeating this operation.

When the closing command signal generated by turning on the closing switch 3 by the occupant after the initial setting is replaced by the input interface a and written in the microcomputer, the closing switch 3 is turned on. In order to supply a reverse current to the motor 4 from the driving means 5 through the output interface b at a time corresponding to the time, the output shaft 4a of the motor 4 is reversely rotated, so that the window glass 30 is moved toward the fully closed position. Let

At this time, when the window glass 30 moves in the fully closed position in response to the ON operation of the close switch 3, if a pinch occurs in the inversion region of the window glass 30, the position reference The count of the position counter 8 is larger than the position reference value of the value storage means 13, and the current cycle time of the pulse cycle timer 9 is the reference time storage means 1
Since the pulse period is larger than or equal to the pulse period reference time of 4, an inversion flag is written at a predetermined address in the microcomputer and a window opening output for opening the window glass 30 contrary to the closing command signal is generated to drive the driving means. In order to supply the electric current in the forward direction to the motor 4, the output shaft 4a of the motor 4 is rotated in the forward direction to reversely move the window glass 30 toward the fully opened position.

When the close command signal generated by turning on the close switch 3 is replaced by the input interface a and written in the microcomputer, the output interface b is output at a time corresponding to the on time of the close switch 3. In order to supply a reverse current to the motor 4 from the driving means 5 via
Since the output shaft 4a of the motor 4 is rotated in the reverse direction, the window glass 30 is moved toward the fully closed position.
When 0 reaches the fully closed position and is blocked from moving, the motor 4
Since the rotation of the output shaft 4a is also restricted, the current cycle time of the pulse cycle timer 9 becomes greater than or equal to the pulse cycle reference time of the reference time storage means 14 and the position reference value of the position reference value storage means 13 However, since the count of the position counter 8 is increased, the fact that the window glass 30 has reached the fully closed position is recognized, the current supply to the motor 4 is stopped, and the window glass 30 is stopped at the fully closed position.

Further, when the open command signal generated by turning on the open switch 2 is replaced by the input interface a and written in the microcomputer, the output interface is output at a time corresponding to the on time of the open switch 2. Since the drive means 5 supplies the electric current in the positive direction to the motor 4 via b, the output shaft 4a of the motor 4 is rotated in the positive direction, so that the window glass 30 is moved toward the fully opened position, and the window glass 30 is moved to the fully opened position. When it reaches and is blocked from moving, the output shaft 4a of the motor 4 is also restrained from rotating, so that the current cycle time of the pulse cycle timer 9 becomes greater than or equal to the pulse cycle reference time of the reference time storage means 14. For,
Recognizing that the window glass 30 has reached the fully open position, the current supply to the motor 4 is stopped, and the window glass 30 is stopped at the fully closed position.

A motor control device 1 having such a structure
Performs control operation based on the programs shown in FIGS. 2, 3 and 4. It should be noted that these programs show a routine for moving the window glass 30 to the fully closed position by the initial setting output.

While the window glass 30 is between the fully closed position and the fully open position, if the power supply for program execution is cut off due to battery exhaustion or the like, the initialization flag is reset and the initial setting is not made. Then, when a new power source is turned on, the program is started at the same time, a new battery is attached, and then the occupant turns on the close switch 3,
From reset in step 100 to step 101
Open switch 2 in step 101.
And whether there is data written by the ON operation of the close switch 3 and the data written by the ON operation of the close switch 3, and the process proceeds to step 102.
In step 102, the value written by the position buffer 11 is stored in the position counter 8 and the process proceeds to step 103. Since it is determined in step 103 that the close switch 3 is on, the process proceeds to step 104, and at step 104. Since the initialization flag has not been set in the determination, the process proceeds to step 105, the inching timer 10 is incremented in step 105 and the process proceeds to step 106, and the inching timer 10 that started to operate after being reset in the determination in step 106 Since the first timer time T1 has not been exceeded, the routine proceeds to step 107, and the current cycle time of the pulse cycle timer 9 is determined by the determination in step 107 and the reference time storage means 1
Since the pulse period reference time of 4 is not larger than or equal to the pulse period reference time of 4, the routine proceeds to step 108, and at step 108, a routine for supplying a reverse current to the motor 4 is performed.

Since the motor 4 is supplied with an electric current in the opposite direction, the window glass 30 is moved toward the fully closed position,
When the output shaft 4a of the motor 4 starts to rotate, the interrupt routine is executed. Since the close switch 3 is on in the determination in step 200, step 201
The position buffer 11 is decremented in step 201, the process proceeds to step 202, and step 2
In 02, the elapsed time from the occurrence of the previous interrupt is stored in the pulse cycle timer 9, the process returns to step 101, the process proceeds from step 101 to step 102, and step 10
The routine proceeds from step 2 to step 103, and in the determination in step 103, the close switch 3 is on, so the procedure proceeds to step 104. In the determination in step 104, the initialization flag is not set, so the procedure proceeds to step 105, and step 105 Inching timer 1
When 0 is incremented, the process proceeds to step 106, and when the inching timer 10 that has started to operate after being reset in the determination in step 106 exceeds the first timer time T1, the process proceeds to step 109, and the determination is made in step 109. Since the dynamic timer 10 has not exceeded the second timer time T2, the process proceeds to step 110, in which the current supply to the motor 4 is stopped and step 101
A routine for returning to is performed.

The motor 4 is stopped when the windshield 30 is slightly moved to the fully closed position by stopping the supply of electric current.

From step 101 to step 102, from step 102 to step 103, since the close switch 3 is ON in the determination in step 103, the process proceeds to step 104, and the initialization flag is set in the determination in step 104. Since it is not set, the routine proceeds to step 105, where the inching timer 10 is incremented at step 105
In step 6, the inching timer 10 started to operate after being reset in the determination in step 106 exceeds the first timer time T1, so the process proceeds to step 109, in which the inching timer 10 is determined by the determination in step 109. When the second timer time T2 is exceeded, the routine proceeds to step 110, where the inching timer 10 is reset at step 111 and the routine returns to step 101.

When the current supply to the motor 4 is stopped, the inching timer 10 is reset. Therefore, in the routine of the next time, the routine proceeds from step 101 to step 102, from step 102 to step 103, and step 103. At step 104, the close switch 3 is on, and therefore the procedure goes to step 104. At step 104, since the initialization flag is not set, the procedure goes to step 105. In step 105, the inching timer 10 is incremented and the step is performed. 10
6, the inching timer 10 which started to operate after being reset in the determination in step 106 has not exceeded the first timer time T1. Therefore, the process proceeds to step 107, and the pulse cycle timer 9 is determined in the determination in step 107. Since the current cycle time is not shorter than the pulse cycle reference time of the reference time storage means 14, the routine proceeds to step 108, and a routine for supplying a reverse current to the motor 4 at step 108 and step 1 according to the determination at step 106.
In order to repeat the routine of shifting to 09 and proceeding to step 110 to stop the current supply to the motor 4 and the routine of shifting to step 111 upon determination of step 109 to reset the inching timer 10, the windshield 30 Is intermittently moved toward the fully closed position while repeating the inching operation to stop when is slightly moved to the fully closed position.

After that, when the window glass 30 reaches the fully closed position and its movement is blocked and the motor 4 is restrained from rotating the output shaft 4a, the current cycle time of the pulse cycle timer 9 is determined by the determination in step 107. Is greater than or equal to the pulse period reference time of the reference time storage means 14, the process proceeds to step 112 and step 11
In 2, the current supply to the motor 4 is stopped, and the initialization flag is written to a predetermined address.
The position counter 8 is reset and the process returns to step 101.

If the occupant turns on the close switch 3 after a new power source is turned on in a state where the initial setting is not made, the inching operation of stopping the window glass 30 when the window glass 30 is slightly moved to the fully closed position is performed. While repeating, the window glass 30 is intermittently moved toward the fully closed position, and the initial setting is performed at the same time when the window glass 30 reaches the fully closed position.

After that, when the open switch 2 is turned on by the occupant while the window glass 30 has reached the fully closed position, steps 101 to 102 are performed.
Then, the process proceeds from step 102 to step 103, and since the close switch 3 is not on in the determination in step 103, the process proceeds to step 113. In the determination in step 113, the open switch 2 is on, so the process proceeds to step 114. After the shift, the current cycle time of the pulse cycle timer 9 is not greater than or equal to the pulse cycle reference time of the reference time storage means 14 in the determination in step 114, so step 115
Then, the routine for supplying the electric current in the forward direction to the motor 4 is performed, and the motor 4 causes the output shaft 4a to rotate in the forward direction by supplying the electric current in the forward direction to move the window glass 30 toward the fully open position. An interrupt routine is executed by rotating the output shaft 4a.

When the open switch 2 is turned on and the window glass 30 reaches the fully open position, the window glass 30 is prevented from moving, and the output shaft 4a of the motor 4 is prevented from rotating, the process proceeds from step 101 to step 102. Then, the process proceeds from step 102 to step 103, the process proceeds to step 113 by the determination in step 103, the process proceeds to step 114 by the determination in step 113, and the current cycle time of the pulse period timer 9 is determined by the determination in step 114. Since the pulse period is greater than or equal to the pulse period reference time of the reference time storage means 14, the process proceeds to step 116 and the current supply to the motor 4 is stopped. Therefore, the window glass 30 is stopped at the fully open position.

When the open switch 2 is turned off after the window glass 30 has stopped at the fully open position, the routine proceeds from step 101 to step 102, and step 1
02 to step 103, the process proceeds to step 113 according to the determination in step 103, and step 113
Since the process proceeds to step 117 by the determination in step 117, the current is not supplied to the motor 4 in step 117, so the window glass 30 remains stopped at the fully open position.

When the close switch 3 is turned on while the window glass 30 is stopped at the fully open position,
The process proceeds from step 101 to step 102, from step 102 to step 103, and after determining in step 103, proceeds to step 104, step 10
Since the initialization flag has been set in the determination in step 4, the process proceeds to step 118. Since the inversion flag has not been written in the determination in step 118, the process proceeds to step 119, and the pulse period timer 9 of the pulse period timer 9 is determined in the determination in step 119. Since the current cycle time is neither larger than nor equal to the pulse cycle reference time of the reference time storage means 14, the process proceeds to step 120, and in step 120, the output current 4a of the motor 4 is supplied in order to supply the electric current in the reverse direction to the motor 4. Wind glass 30 by rotating it in reverse
Move toward the fully closed position.

If the window glass 30 moving toward the fully closed position enters the reversal region by the ON operation of the close switch 3 and if the window glass 30 is caught on the moving side, in step 119 Since the current cycle time of the pulse cycle timer 9 is greater than or equal to the pulse cycle reference time of the reference time storage means 14 in the determination, the process proceeds to step 121, and the current position of the window glass 30 is the position counter in the determination in step 121. Since the count of 8 is larger than the position reference value of the position reference value storage means 13, the process proceeds to step 122 and step 1
In step 22, a reversal flag is written, the current supply to the motor 4 is reversed from the reverse direction to the forward direction, and the routine returns to step 101, and the reversal flag is written in step 118 of the next routine. In step 123, the current cycle time of the pulse cycle timer 9 is smaller than the pulse cycle reference time of the reference time storage means 14 as determined in step 123. Is continuously supplied and the routine returns to step 101, and when the window glass 30 that has been moved in the reverse direction toward the fully open position reaches the fully open position, the current cycle time of the pulse cycle timer 9 of the reference time storage means 14 is reached. Pulse period is greater than or equal to the reference time Shifts from 23 to step 125, the routine returns to stop the current supply to the motor 4 in step 101 is performed while erasing the inversion flag that had in already written in step 125.

When the windshield 30 is caught in the reversal region while the close switch 3 is turned on to move toward the fully closed position, the windshield 30 moves toward the fully opened position. It is automatically inverted, moved to the fully open position, and stopped.

When the windshield 30 is moved to the fully closed position and reaches the fully closed position by turning on the close switch 3 while the windlass 30 has reached the fully opened position, the step 101 is started. The process proceeds to step 102, the process proceeds from step 102 to step 103, and the determination in step 103 proceeds to step 10
4, the initialization flag is set in the determination in step 104, so the process proceeds to step 118. The determination in step 118, the inversion flag is not written, so the process proceeds to step 119, and the determination in step 119. Then, the current cycle time of the pulse cycle timer 9 becomes greater than or equal to the pulse cycle reference time of the reference time storage means 14, so the process proceeds to step 121, and the position counter 8 is determined by the determination in step 121.
Is smaller than the position reference value of the position reference value storage means 13, the current supply to the motor 4 is stopped in step 126 to stop the window glass 30 at the fully closed position.

[0043]

As described above, since the power window control device according to the present invention has the above-mentioned configuration, it is not to be set to the initial setting that the occupant is informed when the close switch is turned on. In addition, the position counter's count is set to zero based on the fully closed position of the windshield, so when the jam occurs, the relative position of the windshield is detected accurately and The excellent effect of being able to detect

[Brief description of drawings]

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

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

FIG. 3 is a flowchart illustrating an operation of the power window control device shown in FIG.

FIG. 4 is a flowchart illustrating an operation of the power window control device shown in FIG.

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

[Explanation of Codes] 1 power window control device 2 open switch 3 close switch 4 motor 4a output shaft 5 driving means 6 motor pulse generating means 7 control means 8 position counter 9 pulse period timer 10 inching timer 12 current value memory 13 position reference Value storage means 14 Reference time storage means 15 Reference value memory 16 Initial setting output generation means 30 Wind glass

Claims (2)

[Claims] 1. An open switch for generating an open command signal by an on operation, a close switch for generating a close command signal by an on operation, and an output shaft connected to a window glass, and by the rotation of the output shaft. A motor for moving the window glass within a stroke between a fully closed position and a fully open position; and a current for opening the window glass based on an operation of turning on the open switch to the motor and turning on the close switch. Driving means for supplying a current to the motor for closing the window glass based on the operation, pulse generating means for generating a pulse signal corresponding to the rotation of the output shaft of the motor, and pulse signal from the pulse generating means. A position counter that relatively counts the current position of the windshield, and the Within the stroke of the current value memory and pulse window timer for detecting the current cycle time of the output shaft by the pulse signal, and the inching timer for setting the inching time for intermittently supplying the current to the motor. A reference having a position reference value storage means for presetting a position reference value corresponding to the vicinity of the fully closed position and a reference time storage means for presetting a pulse cycle reference time corresponding to the reference rotation speed of the output shaft. The control means has a value memory and an initial setting output generating means that generates an initial setting output when a close command signal is generated from the close switch before the initial setting. When the set output is generated, the window closing output for closing the window glass for the driving means is set by the inching timer. When the windshield has reached the fully closed position during the operation time, the current supply to the motor is stopped, the position counter is reset, the position counter is reset by the initial setting output, and then the close command signal is output from the close switch. Is occurring, the count of the position counter is larger than the position reference value of the position reference value storage means and the current cycle time of the pulse cycle timer is larger than or equal to the pulse cycle reference time of the reference time storage means. A power window control device characterized by generating a window opening output for opening a window glass to a drive means at times. 2. The control means, when the initial setting output is generated by the initial setting output generating means, inching the window closing output for closing the window glass on the driving means and the window opening output for opening the window glass on the driving means. The power window control device according to claim 1, wherein the power window control device occurs within an inching time set by a timer.