JPH061026B2 - Vehicle equipment drive - Google Patents

Description

TECHNICAL FIELD The present invention relates to control of a motor for driving vehicle equipment.

[Conventional technology]

Conventionally, as disclosed in Japanese Unexamined Patent Publication No. 56-146442, a driver's door is opened within a predetermined time after the ignition switch is turned off in order to prevent the battery from going up when the ignition switch is turned off. Techniques are known that enable the power window to operate only when.

[Problems to be solved by the invention]

However, according to the one described in the above publication, when the door is closed while the power window is operating, or when the timer expires, the window that is being opened and closed stops halfway. There is a feeling that something is wrong with the passengers.

In order to solve the above-mentioned inconvenience, the present invention has a technical problem that once the motor starts operating, it continues to operate even if the door is closed until it stops at the position intended by the occupant.

[Means for solving problems]

Therefore, the present invention provides a motor for driving equipment provided in a vehicle, a relay means for supplying power to the motor by closing, a command means for outputting a drive command for the equipment, and In the vehicle equipment drive device including a control means for driving and controlling the motor in accordance with the drive command of, a detection means for detecting an open / closed state of a vehicle door, and the detection means for detecting an open state of the door. When
Power supply means for closing the relay means to supply power to the motor, and supplying an operating current in the forward direction flowing to the motor to the relay means to close the relay means. First to do
Second diode means and a reverse-direction operating current flowing through the motor to the relay means to bring the relay means into a closed state.
The above-mentioned diode means is used, and a vehicle equipment drive device is adopted.

[Action]

With the above-described configuration, the power supply means closes the relay means by the detection means detecting the open state of the door, so that power is supplied to the motor. Then, the first and second diode means cause the relay means to be supplied with the operating currents flowing in the motor in the forward rotation direction and the reverse rotation direction, thereby closing the relay means.

Therefore, in particular, since the power supply means is configured to close the relay means when the door of the vehicle is open, the closed state of the relay means should be opened when the door of the vehicle is closed. However, when the operating current is flowing to the motor, the relay means can be closed by the first and second diode means independently of the power supply means. The equipment can be driven even when the is closed.

〔Example〕

The present invention will be described in detail below based on the embodiments shown in the drawings.

FIG. 1 shows a first embodiment of the present invention, in which an operation switch section 1 of a power window is provided inside a door (not shown), and four known operation modes are selected for this switch section 1. Auto lift switch 1a,
A manual raising switch 1b, a manual lowering switch 1c, and an automatic lowering switch 1d are provided. Of the above-mentioned operation switches, the automatic raising switch 1a and the automatic lowering switch 1d are those which, once pushed, do not stop operating until the window is fully closed / opened, and the manual raising switch 1b and the manual lowering switch 1c are the switches. It is for opening and closing the window only while it is pressed.

The operation switches 1a, 1b, 1c, 1d are connected to a control circuit 20 that controls the operation of the window according to each selected operation mode, and the control circuit 20 outputs signals from the operation switches 1a to 1d. In response to this, the transistors 21 and 22 are turned on / off to control the opening / closing of the window. The collectors of the transistors 21 and 22 are connected to the relays 3 and 5, respectively, and
The energization to 5 is controlled. Relay 3,5
Are switched to the contacts 3b and 5b when they are not energized, and they are switched to the contacts 3a and 5a when they are energized.
Is switched to. By switching the contacts of the relays 3 and 5, the direction of energization to the motor 8 that drives the window to open and close is changed. The rotation direction of the motor 8 is reversed depending on the energization direction.

In FIG. 1, a relay 4 is a normally open contact type relay, and is connected via a diode 13 to a key switch 2 that functions as an ignition switch of the vehicle. The key switch 2 is connected to a vehicle-mounted battery 6 that is a DC power source. There is. Reference numeral 30 in FIG. 1 denotes a power supply circuit after the ignition key switch 2 is turned off, and is configured to be set when the ignition key switch 2 is turned on and reset when turned off. The power supply circuit 30 is provided with a door switch 9 which is turned on when the door is opened and turned off when the door is closed, an RS flip-flop 10 formed of a NOR gate, a NOR gate 11, and a diode 14. The diode 14 of the power supply circuit 30 is connected to the window driving motor 8 via the diodes 7 and 12.

Next, the operation of the first embodiment having the above configuration will be described.

First, when the key switch 2 is turned on, the coil of the relay 4 is energized through the diode 13, so that the contact of the relay 4 is closed and power is supplied to the power window control circuit 20 and the operation switch unit 1. Further, the flip-flop 10 is set, and when the door switch 9 is OFF (door closed), the output of the NOR 11 is at LO level.

At this time, if the automatic raising switch 1a is turned on, a base current flows from the power window control circuit 20 to the transistor 21, so that the transistors 21 and 22 are turned on and off, respectively, and the relay 3 is switched to the contact 3a side. A current flows in the window drive motor 8 in the direction of arrow U in FIG. 1, and the window rises until it is fully closed.

When the automatic lowering switch 1d is turned on, a base current flows from the power window control circuit 20 to the transistor 22, so that the transistors 21 and 22 are turned off and on, respectively. Therefore, the contacts of the relays 3 and 5 are switched to 3b and 5a, respectively, and a current flows through the motor 8 in the direction opposite to the arrow U in FIG. Therefore, the motor 8
Rotates in the opposite direction to the upward movement, and the window descends until it is fully opened.

Next, when the key switch 2 is turned off, the relay 4 turns off.
Therefore, since the power window circuit 20 is disconnected from the power source, the drive motor 8 for the power window becomes inactive. Here, when the door switch 9 is turned on (the door is opened), the output of the NOR gate 11 becomes Hi and the relay 4 is energized via the power supply circuit 30, so the relay 4 is turned on and the operation switches 1a to 1d are operated. For example, in the same manner as described above, a current flows through the motor 8 and the window can be opened and closed. Here, when the diodes 7 and 12 are not provided, the auto UP switch 1 is turned on, and when the door is closed while the window is rising, the switch 9 is turned off and the flip-flop 10 is reset, so that the output of 11 is output. Becomes Lo, and the window stops halfway.

However, according to the present embodiment, since the diodes 7 and 12 are provided, in this case, even if the output of the NOR gate 11 is Lo,
While the motor 8 is rotating, power is supplied from the motor terminal to the coil of the relay 4, so that the power window circuit can operate. In this case, when the window rises, the diode 7
Power is supplied to the relay 4 through the relay 4, and power is supplied to the relay 4 by the diode 12 when the window descends.

Further, even when the ignition switch 2 is turned off during the operation of the power window, power is supplied to the relay 4 by the diode 7 or 12 in the same manner as described above, and the window is fully closed or fully opened so that the window drive motor 8 can be operated. The power window is operable until stopped and the power window control circuit is reset.

The switch operation has been described with the automatic switches 1a and 1d, but the same applies to the manual switches 1b and 1c, and the opening / closing operation of the window is interrupted until the switch is once released and the motor is stopped.

Next, a second embodiment of the present invention will be described. In the second embodiment, as shown in FIG. 2, a timer circuit 50 is used instead of the power supply circuit 30 of the first embodiment. The timer circuit 5 starts from OFF of the key switch 2 and outputs a Hi signal for a fixed time (for example, 30 seconds). Further, even when the timer is operating, if the door switch 9 is turned off, the timer output can be reset to the Lo signal. Note that, in FIG. 2, the other configurations are the same as those in the above first
The description is omitted because it is similar to the embodiment.

Next, the operation of the second embodiment will be described. When the key switch 2 is turned on, the relay 4 is turned on and power is supplied to the power window control circuit 20. If any of the operation switches 1a to 1d is turned on, the window drive motor 8 rotates to open and close the window.

Next, when the key switch 2 is turned off, the output of the timer circuit 50 becomes Hi for a certain period of time, and the relay 4 is energized via the diode 14. Therefore, the power window is operable while the timer output is Hi. If the diodes 7 and 12 are not provided and the timer output has passed during the rotation of the motor 8 and the timer output has become Lo (or the door has closed and reset), the window may be opened or closed during the operation. It will stop. However, as in the case of the first embodiment, while the motors 8 are being energized by the diodes 7 and 12, the relays 4 are energized from the diodes 7 and 12, so that the problem that the window stops midway does not occur. Further, when the key switch 2 is turned off during the operation of the power window, the power window is normally stopped, but the problem that the diodes 7 and 12 stop on the way is solved.

〔The invention's effect〕

As described above, in the present invention, when the relay means is closed by the power supply means, the relay means is closed by the first and second diode means independently of the power supply means. Therefore, the equipment can be driven even when the door of the vehicle is closed.

Therefore, when the motor is operating, it is possible to maintain the closed state of the relay means regardless of the operation control of the relay means by the power supply means, eliminating the strange feeling in the operation of the occupant, and It has the excellent effect of increasing the trust of the.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram of the first embodiment of the present invention, and FIG. 2 is an electric circuit diagram of the second embodiment of the present invention. 1 ... Operation switch (command means), 4 ... Relay (relay means), 6 ... Battery, 7 ... Diode (first diode means), 8 ... Motor, 9 ... Door switch (detection means), 12 ... Diode (first) 2 diode means), 2
0 ... Power window control circuit (control means), 30 ... Power supply circuit (power supply means).

Claims (1)

[Claims] 1. A motor for driving equipment provided in a vehicle, a relay means for supplying power to the motor by closing the motor, a command means for outputting a command for driving the equipment, and the command means. In the vehicle equipment drive device including a control means for driving and controlling the motor in accordance with the drive command of, a detection means for detecting an open / closed state of a vehicle door, and the detection means for detecting an open state of the door. When
Power supply means for closing the relay means to supply power to the motor, and supplying an operating current in the forward direction flowing to the motor to the relay means to close the relay means. First to do
Second diode means and a reverse-direction operating current flowing through the motor to the relay means to bring the relay means into a closed state.
And a diode unit of the above.