JPH0589771U - Window regulator controller - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate fine adjustment when opening and closing the window slightly, and to move it quickly near its position when opening and closing relatively large. [Constitution] The controller 1 determines the duty according to the ON duration of the operation switch 2, and instructs the driver circuit 3 of the motor 4 to output the motor based on the duty and the input signal from the operation switch. By controlling conduction of Tr ₀ of the triber circuit and conduction or non-conduction of relays R1 and R2 in accordance with this command, the motor is driven to rotate and the window is opened and closed. For motor output, for example, first drive at a low speed with a duty of 20%,
After that, the duty is increased by 10% every 0.3 seconds, and PWM control is performed so as to shift to high speed. As a result, it is possible to easily make fine adjustments by opening and closing a little at the initial stage of turning on the operation switch, and can quickly move the switch to a position where it is opened and closed greatly by pressing and holding it.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a window regulator control device for a vehicle capable of easily adjusting opening and closing of a power window.

[0002]

[Prior art and its problems]

 When operating the power window switch, it was difficult to make adjustments to open and close the window glass a little. For example, for ventilation, when the window glass is opened by about 0.5 to 1 cm, the opening and closing is repeatedly adjusted many times. As a countermeasure against this, as shown in Fig. 5a, after turning on the switch and turning it off near the open / closed position, the open switch or the close switch is turned on / off momentarily, and the desired opening degree is obtained by one pulse output at this time. There is a one-shot control method by pressing the adjustment to adjust, and as shown in Fig. 5b, the switch is operated at a low speed for a predetermined time from ON and at a constant duty ratio, and after that time, a high speed operation is performed at a duty ratio of 100%. There is a pulse control method that enables it. However, the one-shot control method moves a fixed amount with one pulse, and is not suitable for fine adjustment for performing a slight opening / closing operation of about 0.5 to 1 cm. In addition, the pulse control method had a problem that it took time to operate at high speed.

An object of the present invention is to provide a window regulator control device that facilitates fine adjustment when opening and closing the window a little and can quickly move to a position near the position when the window is opened and closed relatively large. is there.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the window regulator control device of the present invention determines the duty according to the ON duration of an operation switch in a vehicle having a power window regulator device that controls a motor that opens and closes a window. And a driver circuit for driving the motor in response to the motor output command.

According to another invention, in the above invention, the driver circuit includes a motor drive relay that switches rotation driving of the motor according to a motor output command, and a transistor connected to a power supply side of the motor drive relay. The transistor is switched according to the determined duty, and the motor is PWM-controlled.

[0006]

[Action]

 When the UP side or DOWN side of the operation switch is pressed, the duty calculation means determines the duty according to the ON duration of the operation switch, and the motor output command based on this duty is issued from the motor output means to the driver circuit. The driver circuit PWM-controls the motor output based on the motor output command, gradually increases the motor speed, and opens and closes the window. In addition, in the driver circuit configuration in which a transistor is connected to the power supply side of the motor drive relay, the relay is operated by the motor output command from the motor output means, and after switching the power supply direction to the motor, the transistor is turned on. Control to perform PWM control of the motor output. The motor output is controlled so that the duty is first reduced and started at low speed, then gradually increased to shift to high speed. In particular, since it is driven at a very low speed within a predetermined time (eg, 0.3 seconds) from the start of pressing the operation switch, the fine adjustment can be easily performed by pressing the operation switch when opening and closing a little. Also, pressing and holding the operating switch for a long time gradually increases the speed, so when opening and closing relatively large, it can be quickly moved to the vicinity of that position.

[0007]

【Example】

 Embodiments of the present invention will be described below. FIG. 1 shows the circuit configuration of the window regulator control device of the present invention. The controller 1 is composed of a CPU system, and is used to perform predetermined multi-step speed control of the power window motor based on the duration of the input signal when the driver operates the window operation switch 2. It has a duty calculation function for determining the duty and a motor output function for instructing the motor output for driving the motor from the determined duty and the input signal to the driver circuit 3 of the power window motor.

The power window (P / W) operation switch 2 is opened (DOWN) for opening and closing the driver side (D seat) side window or the auxiliary seat and the rear seat (P seat) side window only while being pressed. ) P / W switch (D seat SW, P seat SW) that issues a signal or a close (UP) signal, and an auto switch (AUTO SW) that issues a signal for fully closing or fully opening from the window position when pressed. And a P / W lock switch (P / W lock SW) that issues a signal for prohibiting the opening / closing operation of the window from the P seat.

The driver circuit 3 of the power window motor drives the power window motors of the P seat and the D seat to rotate in a predetermined direction. Specifically, the controller circuit 1 issues an instruction according to the ON duration of the P / W switch. The PWM control signal gradually increases the speed in a predetermined direction, and the motor is driven to rotate at a constant speed after a lapse of a predetermined time, or the ON signal from the auto switch rotates the motor at a constant speed. To open and close the window. In this example, since the D and P seats have the same circuit configuration, only the D seat will be described here.

The driver circuit in the D seat operates by the output command of the power window motor 4 according to the opening / closing operation of the window issued from the controller 1, and is composed of two relays R1 and R2 that switch the power supply direction to the motor. ing. That is, one end of the power window motor 4 is connected to the movable contact a of the relay R1 and the other end of the motor is connected to the movable contact d of the relay R2, and the movable contacts a and d are switched and connected. The contacts b and e are connected to the power supply (12V) via the switching transistor Tr ₁ . For example, when the ignition key switch is at a predetermined position, the transistor Tr ₀ is turned to 0N by a signal from the controller 1, and Tr1 is turned on under this Tr ₀ ON condition to energize the motor. PWM control signal based on the determined duty controls Tr _0, the Tr ₀ to Tr ₁ to ON-OFF operation by, controls the energization time of the motor.

In this state, when the UP side or DOWN side of the D seat SW is pressed, the motor output command from the controller 1 causes Tr ₀ to conduct and the relays R1 and R2 to energize or de-energize. Is controlled. For example, when the relay R1 is controlled to be energized and the relay R2 is de-energized by pressing the DOWN side, the movable contact a is connected to the fixed contact b, the movable contact d is connected to the fixed contact f, Power is supplied in the direction to rotate the motor in the direction to open the window. On the other hand, when the relay R1 is controlled to be de-energized and the relay R2 is energized by pressing the UP side, the movable contact a is connected to the fixed contact b and the movable contact d is connected to the fixed contact f. , Power is supplied in the direction and the motor is driven to rotate in the direction to close the window.

As shown in FIG. 2, when the operation switch SW is turned on, the output of the power window motor is reduced in duty at the beginning to start at low speed, and gradually increased in duty to increase to high speed. Is controlled to shift to. In this example, the duty is first set to 20% at a low speed, and thereafter, the speed is increased by 10% every 0.3 seconds, and the full speed is set in 8 stages (2.4 seconds). Therefore, when the operation switch is turned ON-OFF within 0.3 seconds (section s in FIG. 2), the motor output has a duty of 20% (section v in FIG. 2), and the motor is driven at extremely low speed. Therefore, fine adjustment can be easily performed. Next, the operation of the controller will be described. FIG. 3 is a flow chart for duty calculation, and FIG. 4 is a flowchart of motor output when the D (close) switch is operated.

In FIG. 3, first, it is determined whether or not the operation switch SW is pressed (S1), and when it is in the OFF state where it is not pressed, the duty (DUTY) 20% is set to the initial value (S2). The motor output is processed by this duty ratio. When the operation switch SW is pressed to be in the ON state, it is checked whether or not 0.3 second has elapsed (S3). If NO, the process returns to S1. After 0.3 seconds, it is determined whether the duty is 100% (S4), and if Yes, the process returns to S1. In the case of No, the current duty 20% is increased by 10% and the duty 30% is newly set, and then the process returns to S1. Here, if the operation switch SW is continuously pressed, the duty is increased by 10% every 0.3 seconds, and the duty becomes 100% in 2.4 seconds to reach full speed.

The motor output processing based on the duty determined by the ON time of the operation switch SW will be described with reference to the UP operation of the D seat shown in FIG. The ON counter measures the output ON time, and the OFF counter measures the output OFF time. For example, if the frequency f = 1 kH _Z, when the duty 20%, ON counter = 20 0 .mu.s, becomes OFF counter = 800 s. First, it is determined whether or not the UP SW of the D seat is pressed (S10), and if it is not pressed, the UP output OFF signal is output to the driver circuit 3. In this case, the motor is not driven. On the other hand, if it is pressed, it is determined that the duty is 100% (S11). Since the motor control is performed by the PWM output here, it is determined as No. Next, the time corresponding to the duty set by the ON counter is measured (S13), the ON counter is incremented by 1 (S14) until, for example, 200 μs has elapsed, and the UP output is turned ON (S12). That is, the power window motor in the D seat is energized for 200 μs, and the window closing operation starts with a slow movement.

Thereafter, when 200 μs elapses, the OFF counter operates, and the OFF counter measures a time corresponding to a duty obtained by subtracting the set duty from the duty 100, for example, 800 μs. During this period, the OFF counter is incremented by 1 (S16) and the UP output is turned off (S17). When both the ON counter and the OFF counter have finished measuring the duty time, both the ON and OFF counters are cleared (S18). After that, the process returns to S10 and S13 to S17 are repeated until the duty becomes 100%, and the motor speed is gradually increased.

Therefore, when the window is slightly opened / closed, the switch can be pressed and then stopped at the target position while observing the movement of the window. When it is opened and closed greatly, the window is operated at the motor speed with 100% duty after a lapse of a predetermined time to quickly reach the target position. The power window regulator control device of the present invention adjusts the opening and closing of the window glass, but it can also be applied to the one that adjusts the opening and closing of the roof panel having the same problem.

[0017]

[Effect of the device]

 As described above, according to the present invention, since the duty ratio is made small to drive at the initial stage of turning on the operation switch, the fine adjustment can be made when the operation switch is pushed and closed a little to open and close. It is easy to operate, and by holding down the operation switch for a long time, you can quickly move to that position when you want to open and close it greatly, enabling window operation that suits the sensitivity of the driver.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a window regulator control device of the present invention.

FIG. 2 is a timing chart showing the relationship between operation switches and motor output.

FIG. 3 is a flowchart of a duty calculation process.

FIG. 4 is a flowchart of a motor output process.

FIG. 5 is a timing chart showing the relationship between the operation switch of the conventional window regulator and the motor output.

[Explanation of symbols]

1 controller, 2 window operation switch, 3
Power window driver circuit, 4 power window motor

Claims (2)

[Scope of utility model registration request] 1. In a vehicle having a power window regulator device for controlling a motor for opening and closing a window, a duty calculating means for determining a duty according to an ON duration of an operation switch, and energization of a power window motor by the duty. A window regulator control device including a motor output means for PWM control of the motor and a driver circuit for driving the motor according to the motor output command. 2. The driver circuit includes a motor drive relay that switches the rotational drive of the motor according to a motor output command, and a transistor connected to the power source side of the motor drive relay, and switches the transistor according to the determined duty. The window regulator device according to claim 1, wherein the motor is PWM-controlled.