JPH0813908A - Control device for vehicle power window regulator - Google Patents

Abstract

PURPOSE:To concurrently improve safety and operability by normally holding the locked state prohibiting the operation of power window regulators at seats other than the operator's seat, simply releasing the locked state, and returning the released state to the locked state. CONSTITUTION:Motors 3-5 of power window regulators can be operated by actions of power window switches 7-9 and operation switches 11-13 in a power window master switch unit 6. This operation can be controlled when a relay switch 29a is turned on, however it is prohibited when the relay switch 29a is turned off. A timer circuit 32 normally keeps the relay switch 23a off in the locked state through a transistor 30, and it turns the relay switch 29a on to allow the operation of the motors 3-5 in the unlocked state only during the prescribed timer operation period when an unlocking switch l is turned on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle power window regulator control device having a function of selectively prohibiting the operation of a power window regulator provided other than a driver's door.

[0002]

2. Description of the Related Art Conventionally, in a control device for a general automobile power window regulator, a driver seat and other doors are provided at a position where a driver can operate (for example, a driver seat). A configuration in which a collective switch having a plurality of operation switches for operating the power window regulator is arranged, and a dedicated switch for operating the power window regulator provided in the door is arranged on a door other than the driver seat. It has become.

In this case, in order to prevent a situation in which the power window regulator is operated unnecessarily by operating the special switch by an infant or the like, a wind lock switch is provided in association with the collective switch. When the switch is off, the power window regulator provided on the door other than the driver's seat is cut off, for example, to switch to a lock state in which the operation of the power window regulator is prohibited,
When the window lock switch is turned on, the power window regulator is allowed to operate in an unlocked state.

[0004]

By the way, it is desirable from the safety point of view that the window lock switch as described above is always switched to the locked state, but in reality, the window lock switch is locked. Since it is often forgotten to operate it for a long time, the fact is that the function of prohibiting the operation of the power window regulator by the window lock switch has not been fully utilized. Further, conventionally, in order to back up such forgetfulness of operation of the wind lock switch, it is detected that the driver gets off the vehicle by using a seat belt buckle switch, a driver's door courtesy switch, etc. , It is also possible to prohibit the operation of the power window regulator regardless of the wind lock switch, but since such a prohibition function does not work when the vehicle is running, forgetting to operate the wind lock switch cannot be sufficiently backed up. Met.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to always keep a power window regulator other than for the driver's seat in a locked state in which the operation is prohibited, thereby improving safety. Moreover, the power window regulator for a vehicle can be released from the locked state as needed and can be automatically returned from the released state to the locked state to improve operability. It is to provide the control device.

[0006]

In order to achieve the above-mentioned object, the present invention provides a power window regulator for a vehicle configured so that the operation of the power window regulator other than the driver's seat can be selectively prohibited. In the control device, an unlock switch provided at a position operable by a driver, a timer means for performing a timer operation of a preset time each time the unlock switch is operated, and a device other than a driver seat at all times And a switching means for holding the power window regulator in a locked state in which the operation of the power window regulator is prohibited and switching to an unlocked state in which the operation of the power window regulator is permitted while the timer means is performing the timer operation. (Claim 1).

In this case, the signal generating means for outputting the operation signal indicating the operation state of the power window regulator other than for the driver's seat and giving it to the timer means is provided, and the timer means is operated by the operation signal. The timer operation may be ended in response to the stop of the output of (2).

The signal generating means detects a current flowing through a motor for driving a power window regulator other than that for the driver's seat, and a current detection circuit for outputting an operation signal during a period in which the current detection circuit is in the current detection state. And a signal processing circuit for outputting (claim 3).

Further, the signal generating means includes a current detection circuit for detecting a current flowing in a motor for driving a power window regulator other than that for the driver's seat, and a detection current from the time when the current detection circuit enters the current detection state. Can be constituted by a signal processing circuit that outputs an operation signal during a period until the motor current exceeds the lock current level of the motor (claim 4).

[0010]

According to the structure of claim 1, the switching means is normally kept in the locked state in which the operation of the power window regulator other than the driver's seat is prohibited. From this state, when the unlock switch is operated, the timer means starts the timer operation for the preset time,
During the timer operation period, the switching means switches to an unlocked state which allows the operation of the power window regulator other than the driver seat. Therefore, it is possible to operate the power window regulator other than the driver's seat for a predetermined time from the time when the unlock switch is operated, and after that time, the power window regulator other than the driver's seat is locked in the locked state. It will be automatically returned, and safety and operability can be improved at the same time.

According to the structure of claim 2, when the switching means is switched to the unlocked state as described above in accordance with the operation of the unlock switch, that is, the operation of the power window regulator other than the driver seat is possible. In this state, during the period when the power window regulator is operated, the operation signal output from the signal generation unit is supplied to the timer unit that starts the timer operation according to the operation of the unlock switch. Will be given.
The timer means ends the timer operation when the output of the operation signal as described above is stopped, that is, when the operation of the power window regulator ends, and the switching means accordingly responds to the driver seat. It returns to the locked state that prohibits the operation of other power window regulators.

According to the configuration of claim 3, when the power window regulator is operated when the switching means is switched to the unlocked state in response to the operation of the unlock switch, the current detection circuit causes the power window regulator to operate. While the current flowing through the driving motor is detected, the operation signal is output, and thereafter, the operation signal is stopped in response to the operation stop of the power window regulator. Then, the timer means ends the timer operation in response to the stop of the output of the operation signal as described above, and accordingly, the switching means is returned to the locked state in which the operation of the power window regulator other than the driver seat is prohibited. Be done.

According to the structure of claim 4, when the power window regulator is operated when the switching means is switched to the unlocked state in response to the operation of the unlock switch, the current detection circuit causes the power window regulator to operate. When a current flowing in the driving motor is detected and an operation signal is output, and thereafter the power window regulator is moved to the fully open position or the fully closed position of the window, a lock current flows in the motor. As a result, the output of the operation signal is stopped accordingly. Then, the timer means ends the timer operation in response to the stop of the output of the operation signal as described above, and accordingly, the switching means is returned to the locked state in which the operation of the power window regulator other than the driver seat is prohibited. Be done.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to a 4-door type automobile will be described below with reference to FIG.
In FIG. 1, an unlock switch 1 is provided at a position where it can be operated by a driver, for example, on a door for a driver's seat, and is configured as a momentary type that is turned on only when a knob (not shown) is pressed.

The DC motor 2 is for driving a power window regulator provided on the driver's door of the automobile, and corresponds to the window glass of the driver's door when a current flows in the direction of arrow A in the figure. Up (close direction)
And the window glass is moved downward (opening direction) while a current flows in the direction opposite to the arrow A. The DC motors 3, 4 and 5 are for driving power window regulators provided on the passenger door and the rear right and left doors of the vehicle, respectively. The window glass of the corresponding door is selectively moved in the vertical direction according to the energization direction.

In this case, the DC motor 2 is connected to, for example, a power window master switch unit 6 provided on the driver's door, and the motors 3, 4, 5 are passenger doors, rear right and left doors. Are connected to power window switches 7, 8 and 9, respectively.

The power window master switch unit 6 has an operation switch 10 for controlling the motor 2.
Operation switch 11 for controlling the motors 3, 4, 5
It is configured by including 12, 13 and the like, and a specific configuration thereof will be described later. Further, the power window switches 7, 8 and 9 provided on each door are two sets of momentary type changeover switches 7a, 7b, 8a,
8b, 9a, 9b, each changeover switch 7a, 7b,
8a, 8b, 9a, 9b are the corresponding motors 3, 4,
5, connected to the operation switches 11, 12, 13 and the power supply line 14 as shown.

The power line 14 is connected to the positive terminal of the vehicle battery 15 whose negative terminal is grounded.
The relay 16 is connected via a normally open relay switch 16 a and a fuse 17. The exciting coil 16b of the relay 16 is configured to be energized by the on-vehicle battery 15 when the ignition switch 18 is on.
Therefore, the ignition switch 1 is connected to the power line 14.
Power is supplied only in the ON state of 8.

Now, in the following, a specific structure of the power window master switch unit 6 will be described. That is, the operation switch 10 has two sets of momentary type changeover switches 10a and 10b, and the motor 2 is connected between the common contacts c of the changeover switches 10a and 10b. Also, the changeover switches 10a, 1
In 0b, each normally open contact a is connected to the power supply line 14, and each normally closed contact b is connected to the ground terminal via the shunt resistor 19 for current detection in common. As a result, the load current of the motor 2 flows through the shunt resistor 19, and from the load side terminal of the shunt resistor 19,
The detection voltage Vd having a level proportional to the load current flowing through the motor 2 is output.

The common contacts c of the changeover switches 10a and 10b are electromagnetic solenoids 21 and np mechanically associated with the diode OR circuit 20 and the operation switch 10.
It is connected to the ground terminal through the collector and emitter of the n-type transistor 22. The electromagnetic solenoid 21
A diode 23 for protecting the transistor 22 is connected to both ends of the.

Here, an operation knob (not shown) of the operation switch 10 can be operated to a manual up position and a manual down position in the opposite direction to the manual up position, and is set further back from each of these positions. It is configured such that it can be operated to the auto-up position and the auto-down position, respectively, and in each state in which the operation knob is operated to the manual-up position and the auto-up position, the contact point (ca) of the changeover switch 10a is turned on, In each state in which the operation knob is operated to the manual down position and the automatic down position, the contact point (ca) of the changeover switch 10b is turned on. In addition, the operation switch 10
When the electromagnetic knob 21 is energized when the operation knob (not shown) is in either the auto-up position or the auto-down position, the contact of the changeover switch 10a or 10b (the switch is in the on state at that time) ( c-
The configuration is such that the interval a) is maintained in the ON state as it is.

The first comparator 24 compares the detection voltage Vd from the shunt resistor 19 with the first reference voltage Vs1 from the first reference voltage generating circuit 25, and Vd> Vs1
And outputs a high level signal (for example, a voltage signal of the same potential level as the power supply line 14) in the state of
A low level signal (ground level voltage signal) is output in a state of d≤Vs1, and the output is given to the capacitor 26 via the resistor 26a. In this case, the first reference voltage Vs1
Is set to a value slightly lower than the level of the detection voltage Vd output from the shunt resistor 19 when a lock current flows through the motor 2.

The second comparator 27 includes a capacitor 2
The terminal voltage Vc of No. 6 and the second reference voltage Vs2 from the second reference voltage generation circuit 28 are compared, and a low level signal is output in the state of Vc> Vs2, and Vc ≦ Vs2
Is configured to output a high-level signal in a state related to the above, and its output is given to the base of the transistor 22. In this case, the second reference voltage Vs2 is set to a value lower than the maximum value of the terminal voltage Vc of the capacitor 26.

The time required for the terminal voltage Vc of the capacitor 26 to reach the second reference voltage Vs2 in response to charging through the resistor 26a is a relatively short time required for so-called retightening of the window glass. The charge of the capacitor 26 is set to the diode 26 when the output of the first comparator 24 is inverted to a low level signal.
It is configured to be instantly discharged through b.

The operation switches 11, 12, 13 are 2
Momentary type switch 11a, 11b,
12a, 12b, 13a, 13b, and these changeover switches 11a, 11b, 12a, 12b, 13a, 13
Each common contact c of b is the power window switch 7,
8 and 9 are connected as shown. Further, the changeover switches 11a, 11b, 12a, 12b, 13
In a and 13b, each normally open contact a is connected to the power supply line 14, and each normally closed contact b is connected to the ground terminal via the normally open relay switch 29a of the relay 29 corresponding to the switching means in the present invention. ing.

The exciting coil 29b of the relay 29 has one end connected to the power supply line 14 and the other end connected to the ground terminal via the collector-emitter of the npn transistor 30. A diode 31 for protecting the transistor 30 is provided at both ends of the exciting coil 29b.
Is connected.

The timer circuit 32 corresponding to the timer means in the present invention is supplied with power from the power supply line 14 and is in an operable state, and its trigger terminal T is connected to the ground terminal via the unlock switch 1. In addition, the output terminal Q is connected to the base of the transistor 30. This timer circuit 32 has its trigger terminal T
Each time the input signal to the output signal falls, that is, each time the unlock switch 1 is turned on, the timer operation for a preset time (for example, about 20 to 30 seconds) is performed from the initial state. A high level signal is output from the output terminal Q during the operation period.
The timer circuit 32 outputs a low level signal from the output terminal Q while the timer operation is stopped.

The light emitting diodes 33 to 37 are for indicating the positions of the operation switches 10 to 13 and the unlock switch 1 at night, for example, and the light emitting diodes 33 for the operation switch 10 and the unlock switch 1 are used. The light emitting diode 34 of is connected between the power supply line 14 and the ground terminal, and the light emitting diodes 35 to 37 for the operation switches 11 to 13 are provided between the power supply line 14 and the ground terminal via the relay switch 29a. It is connected.

Next, the operation of the above configuration will be described.
Now, when the ignition switch 18 is on, the exciting coil 16b of the relay 16 is energized to turn on the relay switch 16a, so that the power supply line 14 is supplied with power.

In this state, when the operation knob (not shown) of the operation switch 10 is operated to, for example, the auto-up position, the motor 2 is turned on in response to turning on the contact (ca) of the changeover switch 10a. A current flows in the direction indicated by arrow A, and the windshield of the driver's door is moved upward in response to this.

At this time, since only the steady load current flows through the motor 2, the detection voltage Vd output from the shunt resistor 19 and the first reference voltage Vs1 from the first reference voltage generating circuit 25 are Vd ≦. Due to the relationship of Vs1, the low level signal is output from the first comparator 24. Therefore, the terminal voltage Vc of the capacitor 26 and the second reference voltage Vs2 from the second reference voltage generating circuit 28 are Vd ≦ V.
The relationship of s2 is maintained, and the high level signal is output from the second comparator 27 and the transistor 22
Is held on.

Therefore, when the operation knob is operated to the auto-up position as described above, the diode is connected to the electromagnetic solenoid 21 in response to the operation of turning on the contact (ca) of the changeover switch 10a. Since electricity is supplied through the OR circuit 20 and the transistor 22, the changeover switch 10a is held in the ON state between the contacts (ca) even after the operation of the operation knob is released, and the changeover switch 10a remains on the windshield. The movement in the direction continues.

After this, when the window glass is moved to the fully closed position, the motor 2 is locked. Then, a lock current flows through the motor 2 and the shunt resistor 19
Detection voltage Vd from the first reference voltage Vs1 is Vd> V
Since the relationship is s1, the output of the first comparator 24 is inverted to a high level signal. Therefore, the capacitor 26
Is started and the terminal voltage Vc reaches the second reference voltage Vs2, the wind glass is retightened, and when the relationship of Vc> Vs2 is satisfied,
The output of the second comparator 27 is inverted into a low level signal, and the transistor 22 is turned off.

As a result, the electromagnetic solenoid 21 is cut off, and the changeover switch 10a returns to the ON state between the contacts (c-b), so that the motor 2 is cut off and the window glass is stopped at the fully closed position. Like

On the other hand, when the operation knob of the operation switch 10 is operated to the auto-down position, the contact between the contacts (ca) of the changeover switch 8b is turned on.
A current flows in the direction opposite to the arrow A in the motor 2 to move the window glass downward. In this case as well, the electromagnetic solenoid 21, the first comparator 24, the second comparator 27, the transistor 22, etc. The same function as described above allows the motor 2 to continue to be energized until the window glass is moved to the fully open position even after the operation knob is released.

Further, in a period in which the operation knob of the operation switch 10 is operated to the manual up position or the manual down position while the power supply line 14 is supplied with power,
Depending on whether the contact point (ca) of the changeover switch 10a or the contact point (ca) of the changeover switch 8b is turned on, a current flows in the direction of arrow A or in the direction opposite to arrow A in the motor 2. Accordingly, the window of the driver's seat door is moved upward or downward accordingly. Even in this case, the electromagnetic solenoid 21 is energized, but when the operation knob is operated to the manual up position or the manual down position, the changeover switch 10a or 10
Since the electromagnetic solenoid 21 does not maintain the ON state between the contacts (ca) of b, the movement of the window glass is immediately stopped in response to the operation release of the operation knob.

On the other hand, when power is supplied to the power supply line 14, the timer circuit 32 comes to be in an operable state, but the timer circuit 32 always outputs a low level signal from the output terminal Q when the operation is stopped. Because
The transistor 30 is held in the off state. Therefore, since the exciting coil 29b of the relay 29 is normally disconnected and the relay switch 29a is turned off, the motor 3 is operated through the operation switches 11, 12, 13 or the power window switches 7, 8, 9. It becomes impossible to control the energization of Nos. 4, 5 and thus, the operation of the power window regulators provided respectively on the passenger door and the right and left doors of the rear seats is prohibited.

When the unlock switch 1 is turned on from such a locked state, the timer circuit 32 starts the timer operation for a preset time, and during the timer operation period, the timer circuit 32 concerned. A high level signal is output from the output terminal Q of the transistor 30 to turn on the transistor 30. Then, the exciting coil 29b of the relay 29 is energized and the relay switch 29a is turned on, so that the energization control of the motors 3, 4, 5 through the operation switches 11, 12, 13 or the power window switches 7, 8, 9 is performed. As a result, the operation of the power window regulators provided on the passenger door and the right and left doors of the rear seat can be switched to the unlocked state which is permitted.

In short, according to the above-described embodiment, the power window regulator other than the driver's seat can be kept in the locked state at all times to improve the safety, and the unlocking can be realized. Switch 1
The power window regulators other than those for the driver's seat can be operated for a predetermined time from the time when the power switch is turned on, and after that time, the power window regulators other than those for the driver's seat are automatically locked and locked. As a result, the safety and operability can be improved at the same time.

FIG. 2 shows a second embodiment of the present invention, and only the parts different from the first embodiment will be described below. In this embodiment, the timer circuit 32 'is used as the timer means instead of the timer circuit 32 in the first embodiment.
This timer circuit 32 'has a trigger terminal T
In addition to the output terminal Q and the reset terminal R, the timer operation is terminated when the input signal to the reset terminal R falls while the timer operation is being performed.

The diode OR circuit 38 as the signal generating means has the changeover switches 11a, 11b, 12a, 12b, 13a, 13 included in the operation switches 11, 12, 13.
The operation signal Sv consisting of a high level signal is output during the period when the potential of any one of the common contacts c of b is raised to the level of the power supply line 14.
Is applied to the reset terminal R of the timer circuit 32 '.

Therefore, according to this embodiment having such a configuration, the operation is performed when the relay switch 29a is turned on in response to the ON operation of the unlock switch 1, that is, in accordance with the timer operation of the timer circuit 32 '. When the power window regulator other than the seat is in the unlocked state in which the operation is possible, the diode OR circuit 38 outputs the operation signal Sv during the period when the power window regulator is operated. When the operation of the power window regulator is stopped, the output of the operation signal Sv is stopped.

Then, the input signal to the reset terminal R of the timer circuit 32 'falls and the timer circuit 3 concerned
Since 2'ends the timer operation, the relay switch 29a is turned off according to the turning off of the transistor 30, and accordingly, the locked state in which the operation of the power window regulator other than the driver's seat is prohibited. Returned to. Therefore, according to this embodiment, the locked state is returned before the timer circuit 32 'performs the timer operation for the set time, and the safety can be further improved.

FIG. 3 shows a third embodiment of the present invention, and only the parts different from the first and second embodiments will be described below. This embodiment is characterized in that a timer circuit 32 'similar to that in the second embodiment is used and an operation signal generating circuit 39 is used as the signal generating means in place of the diode OR circuit 38 in the second embodiment. .

This operation signal generating circuit 39 has a shunt resistor 40 as a current detecting circuit interposed in the energizing path to the DC motors 3, 4, 5 in the subsequent stage of the relay switch 29a, and a current is applied across the shunt resistor 40. Is provided, a comparator 41 is provided as a signal processing circuit for generating an operation signal Sv consisting of a high level signal and supplying it to the reset terminal R of the timer circuit 32 '.

Therefore, according to this embodiment having such a structure, the operation is performed when the relay switch 29a is turned on in response to the ON operation of the unlock switch 1, that is, in accordance with the timer operation of the timer circuit 32 '. When the power window regulator other than the seat is in the unlocked state in which the operation is possible, the operation signal generating circuit 39 outputs the operation signal Sv during the period in which the power window regulator is operated. When the operation of the power window regulator is stopped later, the output of the operation signal Sv is stopped. As a result, similarly to the second embodiment, when the operation of the power window regulator is stopped, the timer operation of the timer circuit 32 'is ended and the relay switch 29a is turned off. It is returned to the locked state that prohibited the operation of the power window regulator of. Therefore, according to this embodiment, the same effect as that of the second embodiment can be obtained.

In the third embodiment, the comparator is used.
In place of the switch 41, the operation signal Sv is output during the period from the time when the shunt resistor 40 enters the current detection state until the detected current becomes equal to or higher than the lock current level of the DC motors 3, 4, 5 and the timer circuit. A configuration may be provided in which a signal processing circuit applied to the reset terminal R of 32 'is provided. In such a configuration, after the power window regulator is operated, when the power window regulator is moved to the fully open position or the fully closed position of the window, the lock current is applied to the DC motors 3, 4, and 5. And the signal processing circuit stops outputting the operation signal Sv, the timer operation of the timer circuit 32 'is terminated and the power window regulator other than the driver's seat is returned to the locked state in which the operation is prohibited. Will be

[0048]

As is apparent from the above description, according to the present invention, an unlock switch operable by a driver and a timer for performing a timer operation of a preset time each time the unlock switch is operated. With the provision of the means, the power window regulator other than the driver's seat is always held in a locked state in which the operation is prohibited, and the operation of the power window regulator is permitted while the timer means is operating the timer. Since the switching means for switching to the unlocked state is provided, the power window regulator other than for the driver's seat can be held in the locked state at all times to improve the safety, and the locked state can be achieved. Can be released if necessary, and automatically returns from such a released state to the locked state. Bets are made, in which achieve the beneficial effects of improving operability also can be realized simultaneously.

[Brief description of drawings]

FIG. 1 is an overall circuit configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a circuit configuration diagram of a main part showing a second embodiment of the present invention.

FIG. 3 is a circuit configuration diagram of a main part showing a third embodiment of the present invention.

[Explanation of symbols]

In the drawing, 1, an unlock switch, 2, 3, 4, 5 are DC motors, 6 is a power window master switch unit, 7, 8 and 9 are power window switches 10, 1
1, 12 and 13 are operation switches, 18 is an ignition switch, 19 is a shunt resistor, 21 is an electromagnetic solenoid, 29 is a relay (switching means), 29a is a relay switch, 32 and 32 'are timer circuits (timer means), 38 Is a diode OR circuit (signal generation means), 39 is an operation signal generation circuit (signal generation means), 40 is a shunt resistor (current detection circuit), and 41 is a comparator (signal processing circuit).

Claims (4)

[Claims] 1. An unlock switch provided at a position operable by a driver in a control device for a vehicle power window regulator configured to selectively prohibit operation of a power window regulator other than a driver seat. And a timer means for performing a timer operation for a preset time each time the unlock switch is operated, and a lock state in which the operation of the power window regulator other than the driver seat is prohibited at all times and A control device for a vehicle power window regulator, comprising: switching means for switching to an unlocked state that allows the operation of the power window regulator while the timer means is performing the timer operation. 2. A signal generating means for outputting an operation signal indicating an operation state of a power window regulator other than for the driver's seat and giving it to the timer means, wherein the timer means responds to a stop of the output of the operation signal by a timer. The control device for a vehicle power window regulator according to claim 1, wherein the control device is configured to terminate the operation. 3. The signal generating means includes a current detection circuit for detecting a current flowing through a motor for driving a power window regulator other than the driver's seat, and an operation signal throughout a period in which the current detection circuit is in the current detection state. 3. The control device for the vehicle power window regulator according to claim 2, further comprising a signal processing circuit that outputs the signal. 4. The signal generating means detects a current flowing through a motor for driving a power window regulator other than a driver's seat, and a current detecting circuit that detects the current from a time when the current detecting circuit enters a current detecting state. 3. The control device for a vehicle power window regulator according to claim 2, further comprising a signal processing circuit that outputs an operation signal during a period until a current exceeds a lock current level of the motor.