JP2001262937A - Submerged condition detection power window device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a submerged condition detection power window device, wherein submerged condition detection circuit 5 and a drive circuit operating at the time of submerged condition detection 9, and a motor 1 is automatically driven by operations of the circuits 5, 9 to thereby open a window surely. SOLUTION: This device comprises a driving circuit 8 operating at the time of submerged condition detection and a submerged condition detection circuit 5 including a motor 1, motor driving parts 2U, 2D, a switch control part 3, a window opening/closing switch 6D, a control part 4 and a submerged condition detection sensor 51. At the time of non-operation of the circuit 5, the control part 4 puts ON a corresponding control switch through operation of a window opening/closing switch 6D. Then through the switch a control voltage is supplied to the motor drive parts 2U, 2D to thereby open/close a window through the motor 1 driven. Upon operation of the circuit 5 in which the sensor 51 detects a submerged condition, switch ON of the control switch is made ineffective, then the control voltage is supplied to the motor drive part 2D via the circuit 8, and the window is opened by the motor 1 driven.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a submersion detection power window device, and more particularly to a window opening / closing switch for a vehicle and a window opening switch exclusively for submersion. The present invention relates to a submergence detection power window device which enables a window to be opened by operating the power window.

[0002]

2. Description of the Related Art Generally, a power window device of a motor vehicle includes a motor for opening and closing a window, a relay driving unit for selectively rotating the motor in a window opening direction or a window closing direction, a window opening control switch and a window closing control. A switch control unit for supplying a control voltage to the reactor drive unit through a window open control switch or a window close control switch; a window open switch and a window close switch; and a window open control switch when the window open switch is operated. And a control unit that switches on the window close control switch when the switch is turned on and the window close switch is operated.
In addition to the above, in addition to the above-described components, there is also provided a window pinch detection circuit.

FIG. 2 is a circuit diagram showing an example of a configuration of a main part of a known power window device, and shows a configuration portion of a driver side window operation unit in the power window device. is there.

As shown in FIG. 2, a driver-side window operation unit 20 in a power window device includes a window opening / closing motor 21 and a window closing direction relay 22U.
, Window opening relay 22D, switch control unit 2
3, a control unit (CPU) 24, and a window closing switch 2
5U, window open switch 25D, passenger side window open / close switch 26A, right rear seat side window open / close switch 26R, left rear seat side window open / close switch 26L
A window opening / closing auto switch 27, a pinch detection circuit 28, an interface circuit (I / F) 29,
A power supply terminal 30 and an external connection terminal 31 are provided.

In this case, the window closing direction relay 22U and the window opening direction relay 22D each include a relay winding and its contact. The switch control unit 23 includes a first window-closing control transistor 23U _1, a second window-closing control transistor 23U _2, a first window-opening control transistor 23D _1, and the second window-opening control transistor 23D _2, a plurality of resistors (Each without a figure number). Each of the window close switch 25U and the window open switch 25D is a switch having one contact and two contacts, and a window open / close switch 26A on the passenger seat side,
The right rear seat side window opening / closing switch 26R and the left rear seat side window opening / closing switch 26L are also each a switch of one contact and two contacts. Further, the window opening / closing auto switch 27 is a switch having one contact and one contact.

The window opening / closing motor 21 has one end connected to the movable contact of the window closing direction relay 22U and the other end connected to the movable contact of the window opening direction relay 22D. Window close direction relays 22U, one end of the winding is connected to the first collector of the window-closing control transistor 23U ₁ of the switch control unit 23, the other end of the winding is connected to ground, the power supply terminal is the fixed contact 30 and the other fixed contact is connected to a ground point. The window opening direction relay 22D is configured such that one end of the winding is
Is connected to the first collector of the window-opening control transistor 23D _1, the other end of the winding is connected to the ground point, the fixed contact is connected to the power supply terminal 30, the other fixed contact is connected to ground .

[0007] In the switch control section 23, a first window-closing control transistor 23U _1, the base is connected to the second collector of the window-closing control transistor 23U ₂ through a resistor, the emitter is connected to the power supply terminal 30. The second window-closing control transistor 23U _2, the base is connected to the control unit 24 through a resistor, the emitter is connected to ground. First window open control transistor 23D ₁
Has a base connected to the second collector of the window-opening control transistor 23D ₂ through a resistor, the emitter is connected to the power supply terminal 30. The second window-opening control transistor 23D _2, the base is connected to the control unit 24 through a resistor, the emitter is connected to ground. The window close switch 25U has a movable contact connected to the control unit 24, one fixed contact connected to the power supply terminal 30, and the other fixed contact opened. The window open switch 25D has a movable contact connected to the control unit 24, one fixed contact connected to the power supply terminal 30, and the other fixed contact opened.

In the passenger seat side window opening / closing switch 26A, the right rear seat side window opening / closing switch 26R, and the left rear seat side window opening / closing switch 26L, the movable contact is connected to the ground point, and one and the other fixed contact are controlled. Unit 24. The window open / close auto switch 27 has a movable contact connected to a ground point and a fixed contact connected to the control unit 24. The pinch detection circuit 28 is connected to the control unit 24. One end of the interface circuit 29 is
And the other end is connected to the external connection terminal 31.

Although not shown in FIG. 2, the power window device includes a driver side window operation unit 20.
In addition, a passenger seat side window operation unit, a right rear seat side window operation unit, and a left rear seat side window operation unit are provided. Each configuration of the passenger side window operating unit, the right rear seat side window operating unit, and the left rear seat side window operating unit includes a passenger side window opening / closing switch 26A and a right rear seat side window opening / closing switch 26.
The configuration is the same as that of the driver-side window operation unit 20 except that R, the left rear seat side window opening / closing switch 26L, and the window opening / closing auto switch 27 are not provided. The connection between the driver-side window operation unit 20, the passenger-side window opening / closing switch 26A, the right rear seat-side window opening / closing switch 26R, and the left rear seat-side window opening / closing switch 26L is a connection connected between external connection terminals. Done by line.

The driver-side window operation unit 20 having the above-described structure operates as follows.

When the window close switch 25U and the window open switch 25D are not operated, as shown in FIG. 2, their movable contacts are respectively connected to the other fixed contacts, and the control unit 24 controls the second window close control. transistor 23U ₂ and the second window-opening control transistor 23
It does not supply the control signal to the D _2. At this time, in the first window-closing control transistor 23U ₁ and the first window-opening control transistor 23D ₁ is turned off, window-closing-direction relay 2
The 2U and window opening direction relay 22D are not driven, and their movable contacts are respectively connected to the other fixed contacts as shown in FIG. The ground potential is applied to both ends of the motor 21 so that the motor 21 is not driven to rotate, and the window does not move in any direction.

Here, when the window close switch 25U is operated, the movable contact is switched and connected to one fixed contact,
A power supply voltage is supplied to the control unit 24 through the movable contact. Control unit 24, a second window-closing supplies a control signal to the control transistor 23U ₂ in response to the supply of power supply voltage, turn on the window-closing control transistor 23U _2, at the same time the first
To turn on the window-closing control transistor 23U _1. By the first window-closing on the control transistor 23U _1,
Supply voltage is supplied to the window-closing-direction relay 22U through the first window-closing control transistor 23U _1, connected switched to the fixed contact the movable contact to drive the window-closing-direction relay 22U. At this time, the power supply voltage is applied to one end and the ground voltage is applied to the other end, and the motor 21 rotates in one direction, and moves the window in the closing direction.

When the window open switch 25D is operated when the window close switch 25U is not operated,
The movable contact is switchably connected to one fixed contact, and supplies a power supply voltage to the control unit 24 through the movable contact. Control unit 24
The second provides control signals to the window-opening control transistor 23D ₂ in response to the supply of power supply voltage, the window opening control transistor 23D ₂ is turned on to turn on the first window-opening control transistor 23D ₁ simultaneously. By turning on the first window-opening control transistor 23D _1, a power supply voltage is supplied to the window opening direction relay 22D through the first window-opening control transistor 23D _1, to the fixed contact the movable contact to drive the window-closing-direction relay 22D Switch connection. At this time, the power supply voltage is applied to the other end, and the ground voltage is applied to one end, and the motor 21 rotates in the other direction to move the window in the opening direction.

Next, when the window opening / closing auto switch 27 is operated immediately after the window closing switch 25U is operated, the motor 21 rotates in one direction to move the window in the closing direction, as in the case described above. At this time, the window close switch 25U is controlled by the control unit 24.
And / or the operation of the window opening / closing auto switch 27 is terminated, the window continues to move in the closing direction. The movement of the window in the closing direction continues until the window reaches the fully closed position.

The same applies to the case where the window opening / closing auto switch 27 is operated immediately after the operation of the window opening switch 25D. Even if the operation of the window opening switch 25D and / or the operation of the window opening / closing auto switch 27 is terminated, the window is not changed. Is continued in the opening direction and stops when the window reaches the fully opened position.

Further, a window opening / closing switch 2 for the passenger side
When the movable contact 6A is operated and the movable contact is switched and connected to the window opening side, the control unit 24 detects the operation and generates a window opening signal to a passenger side window operation unit (not shown in FIG. 2). . This window opening signal is supplied to the external connection terminal 31 through the interface circuit 29, transmitted from the external connection terminal 31 to the front passenger seat window operating unit through the connection line, and moves the front passenger seat window in the opening direction. Passenger side window open / close switch 2
The same applies to the case where the movable contact is switched and connected to the window closing side by the operation of 6A, and the passenger side window moves in the closing direction.

A window opening / closing switch 2 for the right rear seat side
The same is true when the 6R or the left rear window opening / closing switch 26L is operated, and the right rear window or the left rear window is opened and closed according to the operation state.

In addition, when the pinch detection circuit 28 detects that an object is pinched in the moving window while the window is moving in the closing direction, the pinch detection signal is sent to the control unit 24. Supply. At this time, the control unit 24 immediately controls the switch control unit 23, the window closing direction relay 22U, and the window opening direction relay 22D,
It works to stop or reverse the rotation of the motor 21.

Since the specific configuration and operation of the power window device having such a pinch detection circuit 28 are well known, further description is omitted.

[0020]

The known driver's seat side window operating unit 20 is arranged in the automobile, especially inside the driver's seat side door, and the whole structure needs to be reduced in size. For this reason, components that are as small as possible are used. In this case, the window closing switch 25U
Although a small switch is used for the window open switch 25D, the smaller window close switch 25D is used.
U and the window open switch 25D are used when the vehicle falls into the water for some reason and the vehicle body is submerged, and water enters the window close switch 25U or the window open switch 25D, the contact between the contacts due to the water. Insulation is no longer maintained, and the contacts are brought into conduction regardless of the switching connection position of the movable contact. When this happens,
Even if the window open switch 25D is operated, the motor 21 does not normally rotate, and the window may not be able to be opened, which may delay the escape from the submerged automobile.

The present invention has been made in view of such technical background, and has as its object to provide a submergence detection circuit and a submersion detection drive circuit, and to provide a submergence detection circuit and a submersion detection drive circuit when a vehicle is submerged. It is an object of the present invention to provide a submersion detection power window device that can reliably open a window by automatically driving a motor by operation of a circuit.

[0022]

In order to achieve the above object, a submersion detection power window device according to the present invention includes a motor for opening and closing a window, a motor driving unit for selectively driving the motor, and a control switch. A switch control unit for supplying a control voltage to the unit, a window open / close switch,
A control unit that switches on a control switch corresponding to the operation of the window open / close switch, a submergence detection circuit including a submergence detection sensor, and a drive circuit at the time of submergence detection are provided. Then, the control section turns on the corresponding control switch, supplies the control voltage to the motor drive section through the turned on control switch, drives the motor to open and close the window, and the submergence detection sensor detects the submersion of the car. When the detected submergence detection circuit operates, the control switch is turned off, the control voltage is supplied to the motor drive unit through the submergence detection drive circuit, and the window is opened by driving the motor.

According to this configuration, the driver-side window operating unit is provided with the submergence detection circuit and the submersion detection drive circuit, so that when the vehicle is submerged, the submersion detection circuit detects submersion and detects submersion. When a signal is output, the rotation of the motor is immediately stopped by the submergence detection signal, and a driving current is output from the drive circuit at the time of submergence detection so that the motor can be moved in the window opening direction. Even if a part of the window operation unit is affected by the submergence, the motor can be automatically driven when the submergence detection circuit outputs the submergence detection signal, and the window can be reliably opened.

[0024]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a submersion detection power window device according to the present invention, and is a circuit diagram showing a main part of the submersion detection power window device. It shows the components of the side window operation unit.

As shown in FIG. 1, the driver's seat side window operating unit 13 according to this embodiment includes a window opening / closing motor 1, a window closing direction relay 2U (motor drive unit), and a window opening direction relay 2D ( Motor drive)
A switch control unit 3, a control unit (CPU) 4, a submergence detection circuit 5, a driver-side window open / close switch 6D,
A passenger seat side window opening / closing switch 6A, a right rear seat side window opening / closing switch 6R, a left rear seat side window opening / closing switch 6L, a window opening / closing auto switch 7, a submergence detection drive circuit 8, a pinch detection circuit 9, An interface circuit (I / F) 10, a power supply terminal 11, and an external connection terminal 12 are provided.

In this case, each of the window closing direction relay 2U and the window opening direction relay 2D comprises a relay winding and its contact. The switch control unit 3, a first window-closing control transistor 3U _1, a second window-closing control transistor 3U _2, first window-opening control transistor 3
And D _1, a second window-opening control transistor 3D _2, consisting of a plurality of resistors (without respective drawing number). Submergence detection circuit 5, a submergence detection sensor 5 _1, a switching transistor 5 _2, and collector resistors 5 _3, a base bias resistor _4, consisting of a base series resistor 5 _5. Submergence detection time of driving circuit 8, a switching transistor _81, a base bias resistor 8 _2, a base series resistor 8 _3, a buffer diode 8 _4. The driver's seat side window open / close switch 6D, the passenger side window open / close switch 6D
A, the right rear seat side window open / close switch 6R and the left rear seat side window open / close switch 6L each comprise a switch of one contact and two contacts.
It consists of a switch with one contact per circuit. In addition, submergence detection sensor 5 ₁ consists those opposed disposed close pair of conductors.

The window opening / closing motor 1 has one end
Is connected to the movable contact of the window closing direction relay 2U.
The end is connected to the movable contact of the window opening direction relay 2D.
You. In the window closing relay 2U, one end of the winding has a first window.
Indian closed control transistor 3U ₁ Connected to the collector
The other end of the winding is connected to ground, and one fixed contact is
The other fixed contact is connected to the ground point
Continued. The window opening relay 2D has one end of the winding.
First window open control transistor 3D₁ Contact collector
The other end of the winding is connected to the ground point and one fixed connection
Point is connected to the power terminal 12 and the other fixed contact is the ground point.
Connected to.

[0029] In the switch control unit 3, the first window-closing control transistor 3U _1, the base is connected to the second collector of the window-closing control transistor 3U ₂ through a resistor, and an emitter connected to the collector of the switching transistor 5 _2. Second window closing control transistor 3
U _2, the base is connected to the control unit 4 through a resistor, the emitter is connected to ground. The first window-opening control transistor 3D _1, the base is connected to the second collector of the window-opening control transistor 3D ₂ through a resistor, and an emitter connected to the collector of the switching transistor 5 _2. The second window-opening control transistor 3D _2, the base is connected to the control unit 4 through a resistor, the emitter is connected to ground.

[0030] In submergence detection circuit 5, submergence detection sensor 5 ₁ has one end connected to the power supply terminal 11, the switching transistor 5 ₂ other end through the base series resistor 5 ₅
Connected to the base. Switching transistor 5 ₂
Has its base connected to ground through a base bias resistor _4, a collector connected to the power supply terminal 12 through a collector resistor 5 _3, and an emitter connected to ground. In submergence detection time of driving circuit 8, the switching transistor ₈₁ has a base is connected to the collector of the switching transistor 5 ₂ through the base series resistor 8 ₃ is connected to the power supply terminal 11 through the base bias resistor _82, the collector buffer It is connected to the anode of the diode 8 _4. Buffer diode 8 ₄ and a cathode connected to one end of the window-opening-direction relay 2D windings.

Driver-side window opening / closing switch 6D, passenger side window opening / closing switch 6A, right rear seat-side window opening / closing switch 6R, left rear seat-side window opening / closing switch 6L.
In each case, the movable contact is connected to the ground point, and one and the other fixed contacts are connected to the control unit 4. The window opening / closing auto switch 7 has a movable contact connected to a ground point and a fixed contact connected to the control unit 4. Entrapment detection circuit 9
Are connected to the control unit 4. Interface circuit 10
Has one end connected to the control unit 4 and the other end connected to the external connection terminal 1.
2 is connected.

Although not shown in FIG. 1 like the known power window device, this submergence detection power window device includes, in addition to the driver side window operation unit 13, a passenger side window operation unit, It has a right rear seat window operation unit and a left rear seat window operation unit. In this case, the configuration of the passenger side window operation unit, the right rear seat side window operation unit, and the left rear seat side window operation unit is different from the configuration of the driver side window operation unit 13 in that the driver side window opening / closing switch 6D is provided. Are respectively changed to window opening / closing switches on the passenger seat side, and are provided with a passenger side window opening / closing switch 6A, a right rear seat side window opening / closing switch 6R, a left rear seat side window opening / closing switch 6L, and a window opening / closing auto switch 7, respectively. The only difference is that there is no
Other configurations are the same. The connection between the driver's seat side window operating unit 13 and the front passenger seat side window operating unit, the right rear seat side window operating unit, and the left rear seat side window operating unit are all performed by connecting lines between corresponding external connection terminals. This is done by connecting

The passenger-side window operating unit, the right rear seat-side window operating unit, and the left rear seat-side window operating unit may be replaced by one or more of the above-mentioned components. Alternatively, a known power window device that does not include the submersion detection circuit 5 or the submersion detection drive circuit 8 may be used.

The driver-side window operation unit 13 having the above-described structure operates as follows.

First, the operation when the vehicle is used in a normal state will be described.

When the driver's seat window opening / closing switch 6D is not operated, as shown in FIG. 1, the movable contacts are not connected to the one and the other fixed contacts, respectively, and the controller 4 controls the second window closing control. Transistor 3U ₂
And it does not supply the control signal to the second window-opening control transistor 3D _2. At this time, the first window closing control transistor 3U ₁ and the first window opening control transistor 3D ₁
Is off, the window closing relay 2U and the window opening relay 2D are not driven, and their movable contacts are connected to the other fixed contacts, respectively, as shown in FIG. The ground potential is applied to both ends of the motor 1 so that the motor 1 is not driven to rotate, and the window does not move in any direction.

[0037] At this time, submergence detection circuit 5, submergence detection sensor 5 ₁ does not detect the submersion, since its impedance is very large, the switching transistor 5 ₂ is off, the power supply voltage of the power supply terminal 11 the first window-closing control transistor 3U through the collector resistor 5 ₃
It is supplied to the _first and the first respective emitters of the window-opening control transistor 3D _1. The submergence detection time of driving circuit 9 is turned off because the base voltage of the switching transistor ₈₁ is raised to a voltage close to the power supply voltage, the power source voltage switching transistor ₈₁ and the buffer diode 8
_No driving voltage is supplied to the window opening direction relay 2D through the switch ₄ .

Here, the driver's seat side window open / close switch 6
When D is operated in the window closing direction, the movable contact is switched and connected to one fixed contact, and a ground voltage is supplied to the control unit 4 through the movable contact. Control unit 4 supplies a control signal to the second window-closing control transistor 3U ₂ in response to the supply of a ground voltage, a window-closing control transistor 3U ₂ is turned on to turn on the first window-closing control transistor 3U ₁ simultaneously I do. By turning on the first window-closing control transistor 3U _1, a power supply voltage is supplied to the window closing direction relay 2U through collector resistor 5 ₃ and first window-closing control transistor 3U _1, the movable contact by driving the window-closing-direction relay 2U Switch connection to one fixed contact. At this time, the power supply voltage is applied to one end and the ground voltage is applied to the other end, and the motor 1 rotates in one direction to move the window in the closing direction.

The driver side window open / close switch 6D
Is operated in the window opening direction, the movable contact is switched and connected to the other fixed contact, and the ground voltage is supplied to the control unit 4 through the movable contact. Control unit 4 in response to the supply of the ground voltage supply second window-opening control transistor 3D ₂ to the control signal, the window-opening control transistor 3D ₂ is turned on, at the same time the first window-opening control transistor 3D ₁
Turn on. First window open control transistor 3D ₁
The ON, a power supply voltage is supplied to the window opening direction relay 2D through collector resistor 5 ₃ and first window-opening control transistor 3D _1, connected switched to the fixed contact the movable contact to drive the window-closing-direction relay 2D .
At this time, the power supply voltage is applied to the other end, and the ground voltage is applied to one end, and the motor 1 rotates in the other direction and moves the window in the opening direction.

Next, the driver's seat side window open / close switch 6D
When the window opening / closing auto switch 7 is operated immediately after operating in either direction, the motor 1 rotates in one direction or the other direction to move the window in the closing direction or the opening direction, as in the case described above. In this case, under the control of the control unit 4, the driver-side window open / close switch 6D
And / or the operation of the window opening / closing auto switch 7 is terminated, the movement of the window in the closing direction or the opening direction is continued. The movement of the window in the closing direction or in the opening direction continues until the window reaches the fully closed or fully opened position.

Subsequently, the passenger side window open / close switch 6
When A is operated in the window closing direction and the movable contact is switched and connected to one of the fixed contacts, the control unit 4 detects the operation and sends a window closing signal to a passenger side window operation unit (not shown). appear. This window closing signal is
It is supplied to the external connection terminal 12 through the interface circuit 10 and transmitted to the passenger side window operation unit from the external connection terminal 12 through the connection line to move the passenger side window in the closing direction. The same applies when the passenger side window opening / closing switch 6A is operated in the window opening direction, and the control unit 4 moves the passenger side window in the opening direction according to the window opening signal generated.

Further, the same is true when the right rear seat side window opening / closing switch 6R or the left rear seat side window opening / closing switch 6L is operated in the window closing direction or the window opening direction. A window closing signal or a window opening signal is generated, and the right rear seat side window or the left rear seat side window is moved in the opening direction or the closing direction according to the signal.

Next, the operation when the state of the automobile becomes abnormal will be described.

The first is an operation when an object, for example, a finger, is caught in the window when the window is moving in the closing direction. A pinch detection signal is generated by detecting pinch into the window, and supplied to the control unit 4. Control unit 4, immediately second window-closing control transistor 3U ₂ outputs a control signal to turn off, therewith to output a control signal to turn on the second window-opening control transistor 3D ₂ simultaneously. Then, the second window closing control transistor 3U
₂ turns off the first window closing control transistor 3U ₁
Is turned off, the drive of the window closing direction relay 2U is stopped, and at the same time, the second window opening control transistor 3D
By turning on ₂ , the first window open control transistor 3U ₁
Is turned on, and the window opening direction relay 2D is driven. For this reason, the motor 1 suddenly changes from rotation in one direction to rotation in the other direction, and moves the window moving in the closing direction to the opening direction. When the pinch detection circuit 9 generates a pinch detection signal, the motor 1
Instead of changing the rotation from one direction to the other direction, the rotation of the motor 1 may be stopped immediately.

The second is that, for some reason, automobiles
Falls into the water and water enters the car and becomes submerged.
In this operation, the submergence detection circuit 5
Submersion detection sensor 5₁ Is covered with water, and between the pair of conductors
If the impedance drops significantly, the switching
Transistor 5_Two Turns on and the switching transformer
Vista 5_Two Collector voltage close to the previous power supply voltage
Voltage to ground voltage, and this ground voltage is submerged.
It is output as a detection signal. And the submergence detection signal is
First window closing control transistor 3U₁ And the first win
Open control transistor 3D₁ Is supplied to each emitter of
First window closing control transistor 3U₁Or the first ui
Open control transistor 3D₁ Whether or not was turned on
Regardless of the first window closing control transistor 3U₁ as well as
First window open control transistor 3D₁ Turn off.
At the same time, the submersion detection signal is transmitted to the submersion detection drive circuit 8.
Switching transistor 8₁ Supplied to the base of
Switching transistor 8 that was off until then₁ To
Turn on the power supply voltage and set the switching transistor 8 ₁ Passing
And buffer diode 8_Four Through the wind opening direction relay
-2D. Window opening relay 2D is activated
The contact is switched, and the other end of the motor 1
Pressure is supplied, the motor 1 rotates in the other direction and the window
Is moved in the opening direction. For this reason, the driver must
It is possible to escape from the car quickly through India
You.

Although the driver-side window operation unit 13 of the above embodiment has been described by way of example in which the pinch detection circuit 9 is provided, the submergence detection power window device according to the present invention is not necessarily limited to the pinch detection circuit. The pinch detection circuit 9 is not limited to the one provided with the pinch detection circuit 9.

[0047]

As described above, according to the present invention, the submersion detection circuit and the drive circuit at the time of submersion detection are provided in the driver's seat side window operation unit, so that the submersion detection circuit detects the submersion when the vehicle is submerged. When it detects and outputs the submergence detection signal,
The rotation of the motor is immediately stopped by the submergence detection signal, and a driving current is output from the driving circuit at the time of submergence detection so that the motor can be moved in the window opening direction. Even if the part is affected by submersion, the motor is automatically driven when the submersion detection circuit outputs the submergence detection signal,
There is an effect that the window can be reliably opened.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing one embodiment of a submersion detection power window device according to the present invention and showing a main configuration of the submergence detection power window device.

FIG. 2 is a circuit diagram showing an example of a configuration of a main part of a known power window device.

[Explanation of symbols]

Reference Signs List 1 window opening / closing motor 2U window closing direction relay (motor driving unit) 2D window opening direction relay (motor driving unit) 3 switch control unit 3U ₁ first window closing control transistor 3U ₂ second window closing control transistor 3D ₁ first window Open control transistor 3D ₂ Second window open control transistor 4 Control unit (CPU) 5 Submergence detection circuit 5 ₁ Submergence detection sensor 52 ₂ , 8 ₁ Switching transistor 5 ₃ Collector resistance 5 ₄ , 8 ₂ Base bias resistance 5 ₅ , 8 ₃ Base series resistance 6D Driver side window open / close switch 6A Passenger side window open / close switch 6R Right rear seat side window open / close switch 6L Left rear seat side window open / close switch 7 Window open / close auto switch 8 Submersion detection drive circuit 8 ₄ Buffer diode 9 Pinching Detection circuit 10 inter Eisu circuit (I / F) 11 power terminals 12 external connection terminal 13 the driver's seat side window operating unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H02P 3/08 H02P 3/08 Z F-term (Reference) 2E052 AA09 BA02 BA08 CA06 EB01 EC01 GA00 GA08 GB00 GB06 GC06 GD03 GD09 HA01 KA08 KA12 KA13 LA07 3D127 AA01 BB01 DF35 DF36 FF06 FF18 5H001 AB10 AB11 AC01 5H530 AA12 BB17 CC06 CC21 CD34 CD40 CF01 DD13

Claims (1)

[Claims] 1. A motor for opening and closing a window, a motor drive unit for selectively driving the motor, a switch control unit for supplying a control voltage to the motor drive unit, a window open / close switch, and the window open / close switch A control unit for turning on the control switch corresponding to the operation of the switch, a submersion detection circuit including a submersion detection sensor,
A submersion detection drive circuit, when the submersion detection circuit is not operating, when the window open / close switch is operated,
The control unit turns on the corresponding control switch, supplies the control voltage to the motor drive unit through the turned on control switch, drives the motor to open and close the window, and the submergence detection sensor During operation of the submersion detection circuit that detects submersion of the vehicle, while turning on the control switch, the control voltage is supplied to the motor driving unit through the submersion detection drive circuit, and the motor is driven. A submergence detection power window device, wherein the window is opened.