JP3220036B2 - Power window device with safety device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window apparatus for opening and closing a window glass applied to a vehicle by a drive source such as a motor, and more particularly, to a power window apparatus having a hand or a head interposed between the window glass and a sash. The present invention relates to a power window device with a safety device that detects a state and performs a safety control operation.

[0002]

2. Description of the Related Art A motor vehicle is equipped with a power window device for automatically opening and closing a window glass. In this power window device, a foreign object such as a hand or a head is often sandwiched between the window glass and the sash. In this case, a vehicle is equipped with a safety device that detects the entrapment of a foreign object, stops the opening / closing operation of the window glass, and performs a safety control operation to prevent an accident from occurring.

In this safety device, for example, a rotation speed of a motor for driving a window glass is detected by a speed detection unit, and when the rotation speed of the motor decreases, it is detected that a foreign object is caught in the window glass. In addition, a safety control operation for opening the window glass is performed to prevent pinching.

In this safety device, if the load of the opening / closing operation of the window glass increases for some reason, the state of the increase in load is erroneously detected as a pinching state. For this reason, the safety control operation was performed, and the window glass could not be closed.

Therefore, conventionally, a release window 109 for releasing the safety control operation is provided in a power window device with a safety device as shown in FIG. This power window device with a safety device transmits a switching operation signal from a driver's seat unit 1a to a passenger seat unit 2a, a left rear seat unit 3a and a right rear seat unit 4a through a harness 101 including a power supply line and a communication line to remotely control the driver. The operation is being performed.

A power supply 5 V is supplied to the CPU 103 in the driver's seat unit 1 a via the resistor 105, and the CPU 1 in the other units 2 a to 4 a is supplied via the harness 107.
03 is supplied with a power supply of 5 V, and when a foreign object is caught in the window glass, the CPU 103 performs a safety control operation.

When the release switch 109 is turned on, the CPU 103 in each unit is grounded.
The CPU 103 becomes inactive, and the safety control operation is released. While the release switch 109 is functioning, the safety control operation is stopped, and it is possible to prevent the window glass from being completely closed due to erroneous detection of entrapment.

[0008]

However, in order to cancel the safety control operation, it is necessary to add a release switch 109 to the driver's seat unit 1a and also to add a harness 107, thereby increasing the cost.

Also, while the safety control operation is canceled,
Since the normal operation is performed, the user may not notice that the safety control operation has been released, such as when the release switch 109 is kept functioning or the safety device is stopped due to a failure. In this case, the safety control operation is not performed when the jamming occurs, which is dangerous.

Further, there is a power window device that detects a position of a window glass by a two-phase pulse, determines whether or not the position of the window glass is in a safety control area, and detects pinching. This device has 3 window glasses by safety control operation.
If the motor is repeatedly inverted and lowered three times (automatic return three times), it is considered that the position of the window glass is indefinite due to an abnormality of the pulse sensor or the like, the safety control operation is canceled, and the normal operation (backup mode) is started. However, the user was unaware that the safety control operation was canceled, which was dangerous.

SUMMARY OF THE INVENTION The present invention provides a power window device with a safety device that prevents a window glass from being completely closed due to erroneous detection of a pinch, and that is low in cost and reduces the danger caused by releasing the safety device. The task is to provide

[0012]

The present invention employs the following means in order to solve the above-mentioned problems. The invention of claim 1 is
Door lock switch means for controlling a door lock in a power window device with a safety device for operating a window glass of a vehicle up and down by a driving source and performing a safety control operation when a foreign object is caught in the window glass; Based on a lock switch signal from the switch means, it is determined whether or not the door lock switch means has been pressed for a safety control operation release time exceeding a predetermined time. And a release determining means for releasing the safety control operation.

According to the present invention, the release determination means presses the safety control operation release time exceeding a predetermined time based on the lock switch signal from the door lock switch means for controlling the door lock. It is determined whether the operation has been performed, and the safety control operation is released when the door lock switch means is pressed for the safety control operation release time.

Therefore, it is possible to prevent the window glass from being completely closed due to the erroneous detection of the entrapment, to use the door lock switch means already provided in the vehicle, and to provide the release determination means to the central processing unit already provided in the vehicle. Since it can be constituted by a device, it is not necessary to use a conventional release switch specially, and the cost can be reduced. Furthermore, since the backup mode is entered by the user's special operation, the user recognizes that the safety control operation has been released and is safe.

According to a second aspect of the present invention, the lock side of the door lock switch means and the release determination means are provided in a driver's seat unit having a driver's seat switch. And transmitting a safety control operation release signal to a plurality of other-seat units having other-seat switches via a multiplex communication line.

According to the present invention, the release determination means in the driver's seat unit sends the safety control operation release signal to the plurality of other seat units having the other seat switch via the multiplex communication line. The seat unit can also release the safety control operation to prevent the window glass from completely closing and use the multiplex communication line already provided in the car, so it is necessary to use a special harness to release the safety control operation Cost can be reduced.

According to a third aspect of the present invention, there is provided a pulse generating means for generating a pulse signal having a frequency corresponding to the rotation speed of the drive source based on the output of the drive source, wherein the safety control operation is canceled and the window glass is removed. A pulse counting means for counting the number of pulses of the pulse signal output from the pulse generating means when the up operation is performed; and determining whether or not the pulse count value of the pulse counting means has exceeded a predetermined value. A stop determining means for stopping the operation of increasing the window glass by a predetermined amount when the value exceeds the value is provided.

According to the present invention, the pulse generating means generates a pulse signal having a frequency corresponding to the rotation speed of the driving source based on the output of the driving source, the pulse counting means cancels the safety control operation, and When the glass is moved up, the number of pulses of the pulse signal output from the pulse generation means is counted, and the stop determination means determines whether the pulse count value has exceeded a predetermined value, and the pulse count value has exceeded the predetermined value. In this case, the operation of raising the window glass by a predetermined amount is stopped.

That is, when the safety control operation is cancelled, the window glass is raised by a predetermined amount in one up operation and then stopped, so that the safety control operation is canceled by this operation. Since the user can recognize, the danger of being accidentally pinched by the window glass can be reduced.

According to a fourth aspect of the present invention, the predetermined amount-up operation is repeatedly performed each time an up-switch signal for turning on an up switch for operating the window glass is input, and the stop determination means is provided. And stopping the predetermined amount up operation each time the up switch signal is input.

According to the present invention, the up operation is repeated every time the up switch is turned on, so that the user can clearly recognize that the safety control operation has been released by this repetition operation. The risk of being pinched can be reduced.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the power window device with a safety device according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an automobile in which a power window device with a safety device according to the present invention is mounted on each unit.

In FIG. 1, a driver's seat unit 1 is connected to a passenger seat unit 2, a left rear seat unit 3 and a right rear seat unit 4 via a multiplex communication line 5, and these units are connected to a window glass. A power window device with a safety device that detects a state in which a foreign object is sandwiched and performs a safety control operation.

The driver's seat unit 1 includes a switch unit 11 for opening and closing the window glass, a microcomputer 21 for performing processing based on an operation signal from the switch unit 11, a motor 25 for receiving the operation signal and opening and closing the window glass, It has a pulse generator 24 as pulse generating means.

The switch unit 11 includes a driver switch 12 for opening and closing the window glass of the driver seat unit, a passenger seat switch 13 for opening and closing the window glass of the passenger seat unit from the driver seat unit, and a window for the left rear seat unit from the driver seat unit. Left rear seat switch 14 for opening and closing the glass, right rear seat switch 15 for opening and closing the window glass of the driver's seat unit to the right rear seat unit, and a door lock switch for controlling the locking of the door lock (lock operation or unlock operation). 16, a lock switch 17 for determining the presence / absence of P / W operation. When the door lock switch 16 is pushed to the lock side, a lock switch signal is output to the microcomputer 21.

The microcomputer 21 performs a safety control operation, and comprises a central processing unit (CPU) 22, a memory 23 for storing various information and a control program for the CPU 22 to execute.

The passenger seat unit 2 has a passenger seat switch 13 for manually opening and closing the window glass, a microcomputer 21, a motor 25, and a pulse generator 24.
The left rear seat unit 3 has a left rear seat switch 14 for manually opening and closing the window glass, a microcomputer 21, a motor 25, and a pulse generator 24. The right rear seat unit 4 manually opens and closes the window glass. A left rear seat switch 15, a microcomputer 21, a motor 25, and a pulse generator 24 are provided.

FIG. 2 is a block diagram showing the configuration of a power window device with a safety device in the driver's seat unit. The up switch 18 shown in FIG. 2 closes (ups) the window glass 7 of the door 6, the down switch 19 opens (down) the window glass 7, and the auto switch 19
Causes the fully closing operation and the fully opening operation to be performed automatically.

The limit switch 8 is connected to the window glass 7
This is a position switch that is turned on when the window glass 7 moves to a position near a predetermined fully closed position (an entrapment non-detection area) within a stroke of the window glass 7 and outputs a position detection signal. . The pulse generator 24 detects the rotation speed of the rotation shaft of the motor 25,
The rotation detection sensor generates a pulse signal having a frequency corresponding to the rotation speed of the motor 25.

The safety control area judging section 31 detects the entrapment detection area (except for the fully closed area, that is, the safety control operation cancellation area) where the open / close position of the window glass 7 is close to the fully closed position by the position detection signal from the limit switch 8. (Safety control area), and a safety control operation is performed in this safety control area.

The limit switch 8 is connected to the window glass 7
Is turned on when reaching near the fully-closed position when moving to the fully-closed position, and generates a position detection signal. While the window glass 7 moves from the fully-opened position to just before the fully-closed position,
It turns off and does not generate a position detection signal. The safety control area determining unit 31 cancels the safety control operation when the position detection signal is input, and performs the safety control operation when the position detection signal is not input.

The speed detector 33 detects the interval time from the rise of the pulse signal from the pulse generator 24 to the next rise to detect the rotation speed (absolute speed) of the motor. The entrapment detection unit 35 detects entrapment of a foreign object when the rotation speed of the motor 25 detected by the speed detection unit 33 is equal to or less than a predetermined value.

During the up output, for example, the absence of a pulse edge for 0.7 seconds or more is detected, and when the limit switch 8 is on, the output is stopped assuming that the fully closed position has been detected. For example, when the absence of a pulse edge for 0.7 seconds or more is detected during the down output, the output is stopped because the fully open position is detected.

The safety control operation command section 37 controls the operation command section 39 based on the output from the safety control area determination section 31 and the pinch detection signal from the pinch detection section 35 to perform the safety control operation. As the safety control operation, the window glass is stopped at the sandwiching position, and thereafter, the window glass is opened, for example, by 15 cm from the sandwiching position. The driver 41 rotationally drives the motor 25 based on the output from the operation command unit 39.

The limit switch 8, the safety control area determination unit 31, the speed detection unit 33, the entrapment detection unit 35, the safety control operation instruction unit 37, and the operation instruction unit 39 perform the safety control operation when a foreign object is interposed in the window glass. Used to do.

The safety control operation release determination section 43 constitutes release determination means, and determines whether the door lock switch 16 has been pressed for a safety control release time exceeding a predetermined time based on a lock switch signal from the door lock switch 16. If the door lock switch 16 is pressed for the safety control operation release time, the operation command unit 39 is controlled to release the safety control operation.

FIG. 3 shows a timing chart of the door lock switch signal. The lock signal of the door lock switch 16 indicates that the door lock switch 16 has a time Ts (for example,
3 seconds) safety control operation release time
This signal indicates that the safety control operation is canceled.

The safety control operation cancellation determination section 43 sends a start signal to the pulse counter 45 and the pulse timer 49 when the safety control operation is canceled and the up switch 18 is operated to raise the window glass 7. Output.

The pulse counter 45 constitutes a pulse counting means, and receives a start signal from the window glass 7 when the start signal is inputted.
Counts the number of pulses of the pulse signal output from the pulse generator 24 during the up operation. The pulse timer 49 operates when the window glass 7 is operating up and a start signal is input.
When the pulse signal is not detected from 4, the timer time is counted.

The up output stop judging section 47 constitutes a stop judging means, judges whether or not the pulse count value of the pulse counter 45 has exceeded a predetermined value. If the pulse count value has exceeded the predetermined value, an operation command is issued. The section 39 is controlled to stop the up output.

The up output stop judging section 47 judges whether or not the timer time of the pulse timer 49 has exceeded a predetermined full-closed detection time. Is reached, the operation command unit 39 is controlled to stop the up output.

The safety control operation release determination section 43, the pulse counter 45, the up output stop determination section 47, the pulse timer 4
9 and the operation command unit 39 are used to cancel the safety control operation.

The units other than the driver's seat unit 1 also have the power window device with the safety device shown in FIG. 2 and have the safety control operation canceling judgment unit 43, the pulse counter 45, the pulse timer 49, the up output stop judgment. It has a portion 47.

Next, the processing of the power window device with the safety device configured as described above will be described with reference to the flowcharts shown in FIGS. First, as shown in FIG.
Initial setting is performed (step S11), and then a door lock switch input process is performed (step S13). This door lock switch input processing is performed by the above-described door lock switch 16, lock switch 17, and safety control operation release determination unit 43.

This door lock switch input processing will be described in detail with reference to FIG. First, the input logic is confirmed (step S131). For example, here, a process of determining an output flag for the door lock is performed according to the input of the door lock switch.

It is determined whether the three-second flag is on (step S133). If the three-second flag is on, it is determined whether the door lock switch 16 is on (step S135). . If the door lock switch 16 is ON, the safety control operation is canceled (step S136).

On the other hand, if the 3 second flag is not on,
It is determined whether the door lock switch 16 is on for more than 3 seconds (step S137), and the door lock switch 1 is turned on.
If the switch 6 is ON for more than 3 seconds, the ON time of the lock switch signal corresponds to the safety control operation release time as shown in FIG. 3, so the 3 second flag is turned ON (step S13).
9) The safety control operation is released. If the door lock switch 16 is not on, the 3 second flag is turned off (step S141), and the safety control operation is not canceled.

The safety control operation release signal from the safety control operation release determination section 43 is sent to the operation command section 39 and also sent to the other seat units 2 to 4 via the multiplex communication line 5. The safety control operation of the unit 1 and the other seat units 2 to 4 can be canceled.

Next, returning to FIG. 4, a power window switch input process is performed (step S15). Here, as shown in FIG. 6, switch input logic confirmation is performed (step S151), and further, switch input determination processing is performed (step S153).

Next, power window switch output processing is performed by the microcomputer 21 (step S1).
7). Here, as shown in FIG.
Is determined to be up (step S171). If the window glass 7 is up, it is determined whether the 3-second flag is on (step S173).

If the three-second flag is on, the safety control operation is cancelled. When the safety control operation has been canceled, it is determined whether or not the up input by the up switch 18 is on (step S175). If the up input is on, a pulse signal is input from the pulse generator 24. It is determined whether it is (Step S177).

When a pulse signal is input, the pulse counter 45 increments the pulse count value,
The pulse timer 49 is reset (Step S17)
9). The up output stop determination unit 47 determines whether or not the incremented pulse count value has exceeded a predetermined value (step S181).

When the incremented pulse count value exceeds a predetermined value, the up output stop judging section 47 controls the operation command section 39 to stop the up output.
That is, when the safety control operation is released, 1
The window glass 7 is stopped by raising the window glass 7 by a predetermined amount, for example, 10 cm, by the number of up operations.

Then, after resetting the pulse timer 49 and incrementing the pulse counter 45 (step S183), the up input inhibition flag is turned on (step S185).

On the other hand, if no pulse signal is input in step S177, it is determined whether or not the timer time has exceeded the fully closed detection time (step S187). By controlling the operation command unit 39 to stop the up output, the pulse timer 49
Is reset, and the pulse counter 45 is incremented (step S189). Step S
If it is determined in 171 that the up output is not being performed, the normal process of down or stop is performed (step S19).
1).

Further, in step S173, if the three-second flag is not on, it is determined whether or not the previous three-second flag is on (step S193). If the last three-second flag is on, operation is performed. The command section 39 is controlled to stop the up output, the pulse timer 49 is reset, and the pulse counter 45 is incremented (step S195). If the previous three-second flag has not been turned on, a normal process at the time of up output is performed (step S197).

In the normal processing of the up / down stop in steps S191 and 197, the safety control operation is performed by the limit switch 8, the safety control area determination unit 31, the speed detection unit 33, the pinch detection unit 35, and the safety control operation command unit 37.
And the operation command unit 39 is used.

The power window output processing is completed by the above processing, and the other processing shown in FIG. 4 is performed (step S1).
9), and return to the process of step S13. That is, every time the up switch 18 is turned on, an up operation in which the window glass 7 rises and stops by a predetermined amount is repeatedly performed as shown in FIG.

As described above, in the present embodiment, the safety control operation release determination unit 43 determines that the door lock switch 16 has pressed the safety control operation release time exceeding a predetermined time based on the lock switch signal from the door lock switch 16. If the door lock switch 16 is pressed for the safety control operation release time, the safety control operation is released, and the safety control operation release signal is transmitted to the other seat units 2 to 4 via the multiplex communication line 5. Therefore, it is possible to prevent the window glass from being completely closed due to erroneous detection of the entrapment.

In this case, the existing door lock switch 16
And the safety control operation release determination unit 43 can be configured by the existing CPU 22, so that the conventional release switch 1
09 and the harness 107 do not need to be specially used, and the cost can be reduced. Furthermore, since the backup mode is entered by the user's special operation, the user recognizes that the safety control operation has been released, and is safe.

When the safety control operation is cancelled, the window glass 7 is raised by a predetermined amount by one up operation and then stopped, and this up operation is repeated every time the up switch 18 is turned on. Therefore, the user can recognize that the safety control operation has been canceled by this operation, so that the risk of being erroneously pinched by the window glass 7 can be reduced.

The present invention is not limited to the embodiment. For example, the speed detection unit 33 detects a change (relative speed) of the rotation speed of the motor by detecting the front-back ratio of the interval time of the pulse signal from the pulse generator 24, and the entrapment detection unit 35 detects the change in the speed detection unit 33. Motor 25 detected at
May be compared with a predetermined value, and when the relative speed is equal to or less than the predetermined value, the trapping of foreign matter may be detected.

Further, instead of providing the speed detection unit 33,
A reference time determination unit is provided. The reference time determination unit determines whether an edge of the pulse signal from the pulse generator 24 is detected within the reference time. If the signal edge is not detected within the reference time, foreign object entrapment may be detected.

Further, in the embodiment, the pulse generator 2
Reference numeral 4 denotes a one-phase rotation detection sensor. As the pulse generator 24, for example, the first and second pulses are shifted by 90 ° in the circumferential direction of a magnet fixed to a rotating shaft of a motor 25. May be used, and a two-phase pulse generator that generates a pulse signal having a frequency corresponding to the rotation speed of the motor 25 by detecting the magnetic field of the magnet by each Hall element may be used.

In this case, when the window glass 7 is up, the phase of the pulse signal from the first Hall element is advanced by 90 ° from the phase of the pulse signal from the second Hall element, and when the window glass 7 is down. The phase of the pulse signal from the second Hall element is advanced by 90 ° from the phase of the pulse signal from the first Hall element.

Further, the rotation direction of the motor 25 is detected by detecting the advance / delay of the mutual phase of the pulse signals from the first and second Hall elements of the pulse generator 24, and the opening and closing of the window glass 7 according to the rotation direction. An opening / closing direction detecting unit for detecting the direction, a count value when the window glass 7 is fully closed is set to 0, a pulse signal when the motor rotates forward is counted in a negative direction, and a pulse when the motor rotates reversely. An opening / closing position detector for counting signals in the positive direction and detecting the opening / closing position of the window glass based on the count value is provided.

The safety control area judging section 31 detects a safety control area (sandwiching) except for a safety control operation canceling area provided in a predetermined range on the fully closed position side of the window glass 7 by a detection signal from the open / close position detecting section. If the detection region is determined, the safety control operation can be performed in this safety control region. That is, the safety control operation can be performed by using the two-phase pulse generator 24 instead of using the one-phase pulse generator 24 and the limit switch 8.

Instead of using the pulse generator 24 of the embodiment, the entrapment may be detected by opening and closing the window glass for a predetermined period of time determined by a timer.

[0069]

According to the present invention, the release determining means cancels the safety control operation in which the door lock switch means exceeds a predetermined time based on the lock switch signal from the door lock switch means for controlling the door lock. It is determined whether the button has been pressed for a time, and when the door lock switch is pressed for the safety control operation release time, the safety control operation is released.

Therefore, it is possible to prevent the window glass from being completely closed due to erroneous detection of entrapment, to use the door lock switch means already provided in the vehicle, and to use the central processing unit already provided in the vehicle for the release determination means. Because it is possible, there is no need to use the conventional release switch specially,
Cost can be reduced. Furthermore, since the backup mode is entered by the user's special operation, the user recognizes that the safety control operation has been released, and is safe.

Further, the release determination means in the driver's seat unit sends the safety control operation release signal to the plurality of other seat units having the other seat switch via the multiplex communication line, so that the plurality of other seat units also perform the safety control. By canceling the operation, it is possible to prevent the window glass from completely closing due to erroneous detection of entrapment, and it is necessary to use a special harness to release the safety control operation because it uses the multiplex communication line already provided in the car Cost can be reduced.

Further, the pulse counting means counts the number of pulses of the pulse signal output from the pulse generating means when the safety control operation is canceled and the window glass is moved up, and the stop judging means operates as the pulse counting means. It is determined whether the count value has exceeded a predetermined value. If the pulse count value has exceeded the predetermined value, the operation of increasing the window glass by a predetermined amount is stopped. That is, when the safety control operation is cancelled, the window glass is raised by a predetermined amount by one up operation and then stopped, so that the user is notified that the safety control operation has been canceled by this operation. It can be recognized and the danger of being accidentally pinched by the window glass can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of an automobile in which a power window device with a safety device according to the present invention is mounted on each unit.

FIG. 2 is a block diagram showing a configuration of a power window device with a safety device in a driver seat unit.

FIG. 3 is a timing chart of a door lock switch signal.

FIG. 4 is a flowchart showing a process of the power window device with a safety device.

FIG. 5 is a flowchart illustrating an input process of a door lock switch.

FIG. 6 is a flowchart showing a power window input process.

FIG. 7 is a flowchart showing a power window output process.

FIG. 8 is a block diagram of a configuration of an automobile having a conventional power window device with a safety device in each unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Driver's seat unit 2 Passenger's seat unit 3 Left rear seat unit 4 Right rear seat unit 5 Multiple communication line 7 Window glass 8 Limit switch 12 Driver's seat switch 13 Passenger's seat switch 14 Left rear seat switch 15 Right rear seat switch 16 Door lock switch 17 Lock Switch 21 Microcomputer 22 CPU 24 Pulse Generator 25 Motor 31 Safety Control Area Judgment Unit 33 Speed Detection Unit 35 Entrapment Detection Unit 37 Safety Control Operation Command Unit 39 Operation Command Unit 43 Safety Control Operation Release Judgment Unit 45 Pulse Counter 47 Up Output stop judgment unit 49 pulse timer

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazutaka Fujii No. 8 Tsuchiya, Fujisawa-shi, Kanagawa Isuzu Motors Corporation Fujisawa Plant (56) References JP-A-8-86147 (JP, A) JP-A-6 JP-A-321029 (JP, A) JP-A-8-199909 (JP, A) JP-A-9-279939 (JP, A) JP-A-4-41079 (JP, U) JP-A-7-32170 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) E05F 15/00-15/20 B60J 1/00 B60J 1/17

Claims (4)

(57) [Claims] 1. A power window system with a safety device for operating a window glass of a vehicle up and down by a driving source and performing a safety control operation when a foreign object is caught in the window glass, wherein a door lock switch means for controlling a door lock. It is determined whether or not the door lock switch is pressed for a safety control operation release time exceeding a predetermined time based on the lock switch signal from the door lock switch means, and the door lock switch is pressed for the safety control operation release time. And a release determining means for releasing the safety control operation in the case of being performed, and a power window device with a safety device. 2. The lock side of the door lock switch means and the release determination means are provided in a driver's seat unit having a driver's seat switch, and the release determination means in the driver's seat unit outputs a safety control operation release signal. 2. The power window device with a safety device according to claim 1, wherein the power window is transmitted to a plurality of other seat units having the other seat switch via a multiplex communication line. 3. A pulse generating means for generating a pulse signal having a frequency corresponding to a rotation speed of the driving source based on an output of the driving source, and when the safety control operation is canceled and the window glass is moved up. Pulse counting means for counting the number of pulses of the pulse signal output from the pulse generating means; and determining whether the pulse count value of the pulse counting means has exceeded a predetermined value, and determining whether the pulse count value has exceeded the predetermined value. And a stop determining means for stopping the operation of raising the window glass by a predetermined amount.
A power window device with a safety device according to claim 2. 4. The predetermined amount increasing operation is repeatedly performed each time an up switch signal for turning on an up switch for operating the window glass is input, and the stop determination unit determines whether the up switch signal is input. The power window device with a safety device according to claim 3, wherein the predetermined amount increasing operation is stopped every time the operation is performed.