KR19980048733A - Drive control device of electric side mirror - Google Patents

Abstract

The present invention relates to an electric side mirror, and more particularly, to a drive control apparatus for an electric side mirror that is capable of automatically opening and closing the side mirror in accordance with whether or not the vehicle is started.

To this end, the present invention adjusts the up and down and left and right positions of the side mirror by driving the motor in proportion to the user's switch operation amount, so that the side mirror can be completely folded or opened by controlling the driving of the motor according to the on / off switch. In the electric side mirror,

Start detection unit 23 for detecting the on-off state of the start, obstacle detection unit 30 for detecting the obstacles present in the left and right sides of the vehicle, the detection result of the start detection unit 23 is turned off the side mirror Each motor 26 controls the driving of the motors 26 and 28 so as to be completely folded, and controls the opening and closing of each side mirror according to the presence or absence of an obstacle according to the detection result of the obstacle detecting unit 30 when the starting is on. And a control unit 20 for outputting a driving signal.

Description

Drive control device of electric side mirror

The present invention relates to an electric side mirror, and more particularly, to a drive control apparatus for an electric side mirror that is capable of automatically opening and closing the side mirror in accordance with whether or not the vehicle is started.

In general, an outside amirror is installed at the front of the left and right doors of the car so that the driver can grasp the vehicle and the driving environment behind the driver. Make it easy to identify the situation behind you.

However, such an outside mirror (hereinafter referred to as a side mirror) has a mounting position outside the vehicle, and a side mirror set to an appropriate position by the driver's operation is not fixed to the side mirror, so the setting position may be changed due to external impact. It was easily assumed that the driver had to reposition the side mirrors every time or while riding. In addition, the left side mirror mounted adjacent to the driver's seat can be easily operated by the driver while riding or riding, but the side mirror mounted on the right side is out of reach of the driver, so There was a difficulty.

Therefore, recently, an electric side mirror for automatically positioning a side mirror by driving a motor has been disclosed. As shown in the control block diagram shown in FIG. 1, the positions of the left and right side mirrors are respectively controlled to the left and right and up and down. The horizontal control switch 11 and the vertical control switch 12 provided so as to be fully closed, the opening and closing switch 13 which opens each side mirror completely or to an appropriate position, and a vertical moving motor for driving the side mirrors provided on the left and right sides up and down, respectively. (17) and the horizontal motor 15 to drive left and right, the horizontal motor 15 and the vertical motor driver 16 for controlling the driving of the horizontal motor 15 and the vertical motor 17, Receiving the operation signal of the horizontal and vertical control switch (11) (12) to determine the up and down and left and right directions to output a drive signal to the horizontal motor driver 14 and the vertical motor driver 16, respectively. And a fisherman 10.

At this time, the horizontal motor 15 and the vertical motor 17 is preferably implemented by a stepping motor, respectively, which is driven in proportion to the operation amount of the vertical control switch 12 and the horizontal control switch (11). The control unit 10 receives the operation signals of the vertical control switch 12 and the horizontal control switch 11 to determine the up, down, left and right, and accordingly reverses each vertical movement motor 17 and the horizontal movement motor 15. It rotates to control the position of the side mirrors.

However, in the conventional electric side mirror, the left and right side mirrors can be easily and easily operated by the operation of the switch. However, when the driver is traveling in a narrow alley according to the road situation, the side switch is operated by operating the open / close switch. Since the mirror was folded and unfolded, the previous position of the side mirror was not remembered, and the driver had to operate each control switch to reset the position of the side mirror.

In addition, during parking, there were cases where the side mirror was damaged or the setting position was changed due to an external shock or contact with another person.

Therefore, the present invention has been devised to solve the problems of the conventional electric side mirror, and the drive control apparatus of the electric side mirror capable of automatically controlling the driving of the side mirror in accordance with the on-off of the start and the presence of obstacles. The purpose is to provide.

1 is a control block diagram showing a drive control apparatus of a conventional electric side mirror;

2 is a control block diagram showing a drive control apparatus for an electric side mirror according to the present invention;

3 is a flowchart illustrating a driving control method of an electric side mirror according to the present invention.

Explanation of symbols on the main parts of the drawings

20 control unit, 21 horizontal control switch,

22.Vertical control switch, 23.Startup sensor,

24 ... open / close switch, 25 ... horizontal motor drive,

26 horizontal motor, 27 vertical motor drive,

28 vertical movement motor, 29 position detection,

30 ... obstacle detection unit.

In order to realize the above object, the drive control apparatus of the electric side mirror according to the present invention adjusts the up and down and left and right positions of the side mirror by driving the motor in proportion to the user's switch operation amount, and drives the motor according to the on / off switch. An electric side mirror capable of completely folding or opening the side mirror by controlling a power supply, comprising: a start detection unit detecting an on / off state of a start, an obstacle detection unit detecting an obstacle present in left and right sides of the vehicle, and the start detection unit When the start of the detection is off, the driving of the motor is controlled to completely fold the side mirror, and when the start is on, the driving of each motor is controlled to control the opening and closing of each side mirror according to the presence or absence of an obstacle according to the detection result of the obstacle detecting unit. And a control unit for outputting a signal.

Hereinafter, the configuration and the effect according to the preferred embodiment of the present invention will be described in detail.

First, Figure 2 shows a control block diagram of the drive control apparatus of the electric side mirror according to the present invention. As shown in FIG. 2, the motorized side mirror driving control apparatus of the present invention has horizontal control switches 21 and vertical control switches 22 provided to manipulate left and right side mirror positions left and right and up and down, respectively, Vertical movement motors 28 for driving the side mirrors provided up and down, and horizontal movement motors 26 for driving the left and right side mirrors, and the vertical movement motors 28 and the horizontal movements so as to completely fold each side mirror or to a proper position. An opening / closing switch 24 for driving the motor 26, a horizontal motor driving part 25 and a vertical motor driving part 27 for controlling the driving of the horizontal moving motor 26 and the vertical moving motor 28; The control unit 20 is provided with a control switch and an operation signal of the open / close switch 24 to determine the vertical direction and the left and right directions, and outputs a drive signal to the horizontal motor driver 25 and the vertical motor driver 27, respectively. . In addition, the start detection unit 23 for detecting the on-off of the start and the position detection unit 29 for detecting the current position of each side mirror, and the obstacle detection unit for detecting the presence of obstacles in front of the vehicle while driving ( 30) and an automatic / manual selection switch 31 for selecting whether to automatically drive the side mirror according to the detection result of the obstacle detecting unit 30 from the driver.

In such a configuration, when the key is input by the protruding switch formed in the inside of the key assembly, the start detection unit 23 inputs a high signal because the contact is turned on when the driver releases the key from the vehicle. When it is separated, the contact of the protruding switch is turned off by the spring restoring force on the inner side, so that the low signal is inputted, thereby detecting whether the current startup is on or off.

In addition, the position detection unit 29 is preferably implemented as a hall IC, which is the horizontal movement motor 26 and the vertical movement motor 28 in accordance with the operation amount of each of the horizontal control switch 21 and the vertical control switch 22. ) Rotates forward and reverse. At this time, the magnetic flux that is changed by the magnet inserted into each motor shaft is detected by Hall IC. When each motor rotates by a certain angle, it outputs one pulse signal to detect the position of each side mirror. do.

The obstacle detecting unit 30 is implemented as an optical sensor and a wheel sensor, the optical sensor is preferably mounted on the side mirror to detect the presence of an obstacle in front of the side mirror to input a detection signal to the control unit 20 Since the wheel sensor detects the vehicle speed of the vehicle and inputs it to the controller 20, the controller 20 determines the driving and the temporary stop of the host vehicle in the state where the starting is on.

In this configuration, the control unit 20 counts the pulse signal output from the position detection unit 29 to determine the current position of the side mirror, which, for example, adds the number of pulses when the motor rotates forward, If the motor rotates in reverse, the position of the current side mirror can be determined by subtracting the number of pulses. In this case, when the side mirror is completely folded, the reference value is determined by setting the value counted by the controller 20 to 0.

3 is a flowchart showing a drive control method for an electric side mirror according to the present invention having such a configuration. Hereinafter, the electric side mirror driving control method of the present invention will be described in detail with reference to the flowchart shown in FIG. 3. First, a case in which the driver selects the auto mode by operating the auto / manual selection switch 31 will be described below. In the case of the manual mode, the opening / closing switch 24 is operated as in the conventional drive control method of the electric side mirror. According to the operation, the position of each side mirror can be manipulated by controlling the driving degree of the horizontal moving motor 26 and the vertical moving motor 28.

On the other hand, in the automatic mode, it is determined whether the start of the current vehicle is turned on in step s10. If the start of the vehicle is turned off, it is determined that the current vehicle is being parked. After storing the position of the current side mirror through 29), the side mirror is folded by driving the horizontal motor 26 until each side mirror is completely folded. If the ignition is subsequently turned on, the position of each side mirror is returned to the previously stored position when the ignition is turned off.

However, when the start of the host vehicle is turned on as a result of the determination of step S10, the process proceeds to step S12 to drive the horizontal moving motor 26 for a predetermined time to expand the side mirror. At this time, the driver can readjust the desired angle of each side mirror by manipulating the horizontal control switch 21 and the vertical control switch 22.

In addition, in step S14, the presence or absence of an obstacle in front of the host vehicle is detected through the obstacle detecting unit 30. If it is determined that there is an obstacle, the process proceeds to step S18 to drive the horizontal moving motor 26. By doing so, the side mirror can be completely folded, and then the step S10 or less is repeated. At this time, the control unit 20 stores the current position of the side mirror through the position detection unit 29 before driving the horizontal movement motor 26, and if it is determined that the obstacle is removed afterwards, the horizontal movement motor 26 The drive will be reactivated and the side mirror will return to its original position.

As described above, when the start is turned off by the drive control apparatus of the electric side mirror according to the present invention, by folding each side mirror automatically, it is possible to prevent the damage and the change of position by the impact from the outside. Even when the ignition is turned on, the side mirror can be automatically folded or opened according to the presence of obstacles, which provides an advantage to the driver while driving.

Claims (4)

In the motorized side mirror, the motor is operated in proportion to the amount of switch operation by the user to adjust the up and down and left and right positions of the side mirror, and the side mirror can be fully folded or opened by controlling the driving of the motor according to the on / off switch. , Start detection unit 23 for detecting the on-off state of the start, An obstacle detecting unit 30 for detecting an obstacle present in left and right sides of the vehicle; As a result of the detection of the start detection unit 23, when the start is turned off, the driving of the motors 26 and 28 is controlled to completely fold the side mirror, and when the start is on, the start detection unit 23 controls the driving of the obstacle detection unit 30 according to the detection result. And a control unit (20) for outputting a driving signal to each of the motors (26) and (28) to control the opening and closing of each side mirror in accordance with the presence or absence of an obstacle. The method of claim 1, wherein the controller 20 stores the current position of the side mirror when the obstacle is detected while the engine is turned on, drives the motor to fold the side mirror, and stores the side mirror when the obstacle is removed. Drive control device for an electric side mirror, characterized in that for driving the motor to open up to the position. The drive control apparatus of claim 1, further comprising an auto / manual selection switch (31) to select whether the side mirror is automatically opened or closed by the user. 2. The drive control apparatus of claim 1, wherein the obstacle detecting unit is an optical sensor.