JPH0228664B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power window control device for a vehicle that allows the power window to continue operating even after a predetermined time has elapsed after the ignition switch is turned off.

As a power window control device for vehicles, it is equipped with an auto-operated switch that activates the relay by temporarily pushing it to the UP or DOWN side, and automatically opens and closes when fully open or fully closed, and after turning on the ignition switch. A device that improves operability by allowing the power window to operate for a predetermined period of time is being considered. FIG. 1 shows this vehicle power window control device, which consists of a battery 1, an ignition switch 2, a relay coil 3a, and a contact 3b.The relay 3 turns on the contact 3b when the ignition switch 2 is turned on. and automatic operation and the first one that opens and closes the front right window.
a second switch _4b that opens and closes the front left window, a third switch 4c that opens and closes the rear right window, and a fourth switch 4d that opens and closes the rear left window. , a fifth switch 4a ₂ (the first and fifth switches 4a ₁ ,
_4a2 as the main switch), and a timer that turns on when ignition switch 2 is turned on, and then turns on for a predetermined period of time, for example, 30 seconds, to turn on relay 5a. 5
and a first drive unit that drives to open and close the front right and left windows, and the rear right and left windows, respectively.
4th motors 6a, 6b, 6c, 6d, a hold circuit 7 that is turned on for a predetermined time when the first switch _4a1 is activated for automatic operation, and a fifth switch 4a. Lock switch 8 that interrupts the ground circuit of ₂ and disables its operation.
The first switch _4a1 and the fifth switch _4a2 constitute a main switch, and a relay 5
When switch a is turned on, power is supplied, and the second to fourth switches 4b, 4c, and 4d are configured to receive power via relay 3.

Incidentally, an example of the structure of the hold circuit 7 is shown in FIG. 3, and a terminal 15 connects the battery and the hold circuit 7 via a relay 5a.
It is configured to have terminals 11, 12, 13 connected to terminals ₁ , 2, 3 of the first switch 4a1, respectively, and terminals 14, 17 connected to the motor 6a.

In the above configuration, when the ignition switch 2 is turned on, the contact 3b of the relay 3 is turned on and the relay 5a is also turned on.
via the second switch 4b and the third switch 4
c and terminal 4 of the fourth switch 4d;
The first switch _4a1 is connected via the relay 5a and the hold circuit 7, and the fifth switch is connected via the relay 5a.
Connect battery 1 to terminal 5 of switch 4a and ₂ respectively.
power is supplied. Therefore, when the ignition switch 2 is on, all of the first switch _4a1 to the fifth switch 4a2 are ready to operate, so it is necessary to turn on the lock switch ₈ to release the interruption of the ground circuit. Then, by operating the first to fourth switches 4a ₁ , 4b, 4c, and 4d, the front, rear, left, and right windows can be opened and closed separately, and the driver's seat can be opened and closed by operating the fifth switch 4a ₂ . You can open and close the windows on the front left, rear left and right doors while staying inside. In this state, the lock switch 8 is turned off and the second to fifth switches 4b, 4c,
When 4d and 4a ₂ are cut off from the ground circuit, it becomes impossible to open and close the windows of the front left and rear left and right doors, and only the front right window can be opened and closed by operating the first switch 4a ₁ . Next, when the ignition switch 2 is turned off, the timer 5 is turned on from that point on, for example, for 30 seconds.
The relay 5a continues to be on, but since the relay 3 is off, the second to fourth switches 4b, 4c, 4
The supply of battery power to d is cut off, making it impossible to open and close the front left window, rear left and right windows by operating these switches 4b, 4c, and 4d. However, since the hold circuit 7 and the fifth switch _4a2 are connected to the battery 1 via the relay 5a, the fifth switch _4a2 is operated by turning on the first switch _4a1 and the lock switch 8. This allows you to open and close the front right side windows, front left side windows, rear left and right windows while in the driver's seat.
In other words, after turning off ignition switch 2, the main switch operated from the driver's seat,
In other words, each window cannot be opened or closed unless the first and fifth switches 4a ₁ and 4a ₂ are operated.

Here, when opening and closing the front left window,
The second switch 4b and the fifth main switch
An example using the first switch 4a ₂ and the first switch 4a ₁ will be shown.

(1) When operating the second switch 4b In this case, it is necessary that the ignition switch 2 is on and the relay 3 is on. Since battery power is supplied to the terminal 4 of the second switch 4b via the relay 3,
When operating D (opening operation), terminal 2 → motor 6b
→ terminal 3 → terminal 5 → terminal 6 on the front left side (FRONT LH) of the fifth switch 4a ₂ → lock switch 8 → a closed circuit of ground circuit is formed to drive the motor 6b. Regarding the U operation (closing operation), a closed circuit for the U operation is also formed, and the motor 6b is driven in the opposite direction.

(2) When operating the fifth switch _4a2, which is the main switch, even after the ignition switch 2 is turned off, the relay 5a remains on for a certain period of time, for example, 30 seconds. , battery power is supplied to the terminal 5 of the fifth switch _4a2 . When the U operation (blocking operation) is performed on the front left side (FRONT LH) of the fifth switch _4a2 ,
A closed circuit is formed from terminal 5→terminal 6 to terminal 5 of second switch 4b→terminal 3→motor 6b→terminal ₂ →terminal 1 to terminal 7 of fifth switch 4a2→earth circuit. to drive. Regarding the D operation (closing operation), a closed circuit for the D operation is also formed, and the motor 6b is driven in the opposite direction.

(3) When operating the first switch 4a ₁ In the case of automatic operation, battery power is supplied to the terminal 15 of the hold circuit 7 via the relay 5a, so if you operate U, for example, the terminal 15 → RC ₁ → terminal 13→Switch _4a Current flows to ground through terminal 3→terminal 4 of switch 4a 1, and RC ₁ (relay coil) attracts RL ₁ (relay). On the other hand, since RL ₁ is interlocked with RL ₃ , a circuit is established, and current flows from terminal 15 → RL ₃ → terminal 17 of motor 6a → same terminal 14 → RL ₄ → to ground through the primary side of the transformer, causing motor 6a to rotate. do. On the other hand, at the end of the U operation, the rotation of the motor 6a decreases, the voltage fluctuation occurring between the motor brushes decreases, and RL ₁ , RL ₃
is restored and the rotation of the motor 6a automatically stops.

In the case of manual operation, for example, when the U operation is performed, current flows to ground through terminal 15 of hold circuit 7 → RC ₁ → terminal 13 → terminal 3 of switch 4a ₁ → terminal 4, and in the same way as above, terminal 15 → RL ₃ → Terminal 17 of motor 6a → Terminal 14 → RL ₄ → Current flows from the primary side of the transformer to the ground, and the motor 6a rotates. At the same time, current flows from terminal 15 → R ₁ → R ₂ → R ₇ → Tr ₄ to ground, turning Tr ₄ on. At this time, a current flows from terminal 15 to R18 to Tr ₁ to R ₃ to Tr ₄ , and Tr ₃ is turned off, so the current that maintains RL ₁ does not flow. Therefore, when the switch 4a ₁ is turned off, RL ₁ returns immediately and the rotation of the motor 6a stops.

However, with conventional devices, if the predetermined time set by the timer 5 has passed after the ignition switch is turned off, the power supply may be cut off while the power windows are operating, making it impossible to operate them to the end. It was hot.

The present invention has been made in view of the above,
To provide a power window control device for a vehicle which allows a power window to continue operating even after a predetermined time has elapsed after an ignition switch is turned off when the power window is operating.

That is, the vehicle power window control device according to the present invention includes: a timer circuit that is turned on when an ignition switch is turned on and turned off when a predetermined time has elapsed since the ignition switch is turned off; and the timer circuit is turned on. a power window switch that supplies power to the power window motor when the predetermined time has elapsed, and detects the drive of the power window motor when it is running even after the predetermined time has elapsed and issues a command to the timer circuit to continue turning on the power window motor. It is equipped with a circuit for outputting.

The vehicle power window control device according to the present invention will be explained in detail below.

FIG. 2 shows an embodiment of the invention. Here, since the same parts as in FIG. 1 are indicated by the same reference numerals, repeated explanations will be omitted. In this example,
In addition to the configuration shown in FIG. 1, a detection circuit 10 is provided which is inserted in series with the relay 5a and detects the load current when the power window is operated by turning on the relay 5a. The detection circuit 10 is configured to detect the load current, provide a detection signal to the timer 5, and control the timer 5 to keep the relay 5a on when the load current is flowing.

In the above configuration, when the ignition switch 2 is turned on, the relay 3 is turned on, and when the timer 5 is turned on, the relay 5a is turned on, so that the first to fifth switches 4a ₁ , 4a ₂ , b,
Each window can be opened and closed by operating c and d. Also, even if ignition switch 2 is turned off,
relay 5 for a predetermined period of time on timer 5.
Since the switch a is on, each window can be opened and closed from the driver's seat by operating the first and fifth switches 4a ₁ and 4a ₂ , which are the main switches. However, even if the window does not close completely within a predetermined period of time after turning off the ignition switch 2, the detection circuit 10 detects the load current and starts the timer 5. Since a signal is given to keep the relay 5a on, the window closing operation can be carried out to the end.

As explained above, according to the power window control device for a vehicle according to the present invention, since the load current is detected and the timer is controlled, the power window is not turned on even after the predetermined time of the timer has passed after the ignition switch is turned off. It can be operated continuously.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a conventional vehicle power window control device. FIG. 2 is an explanatory diagram showing an embodiment of the present invention, and FIG. 3 is an explanatory diagram showing a hold circuit of a conventional vehicle power window control device. Explanation of symbols 1... Battery, 2... Ignition switch, 3... Relay, 4, 4a ₁ , 4a ₂ , 4
b, 4c, 4d...Power window switch, 5
...Timer, 5a...Relay, 6, 6a, 6b, 6
c, 6d...Motor, 7...Hold circuit, 8...Lock switch, 10...Current detection circuit.

Claims (1)

[Scope of Claims] 1. A timer circuit that is turned on when an ignition switch is turned on and turned off when a predetermined time has elapsed since the ignition switch is turned off; The power window switch is equipped with a power window switch that supplies power, and a circuit that detects the drive of the power window motor when it is running even after the predetermined time and outputs a command to the timer circuit to keep it on. A vehicle power window control device characterized by: