JPH02234858A - Electric ally driven mirror device for automobile - Google Patents

Abstract

PURPOSE:To improve the convenience by following and rotating one mirror body by a control circuit when a control signal is given to the driving mechanism of the other mirror body of left and right mirror bodies in the on-state of an automatic mode selecting switch. CONSTITUTION:When a driving switch 14 is operated, for example, to vertically rotate a mirror body 2 in the on-state of an automatic mode selecting switch, a microcomputer 15 gives the driving mechanism 3 of the left door mirror 1 according to the operation signal of the driving switch 14 to vertically rotate the mirror body 2. At that time, a position detection signal by a position detector 4 is inputted to the microcomputer 15, which calculates the vertical rotating displacement quantity x and aiso a vertical rotating displacement quantity 'x to the right mirror body 6 determined by a determined ratio relation corresponding to the rotating displacement quantity x, and makes the right mirror body 6 vertically follow and rotate according to the rotating displacement quantity 'x.

Description

[Detailed Description of the Invention] [Purpose of the Invention (Industrial Application Field) The present invention provides a method for controlling the
The present invention relates to an electric mirror device for an automobile that selectively rotates mirror bodies arranged on the left and right sides.

(Prior Art) Conventionally, for example, in an electric car door mirror,
In order to change the field of view reflected on the mirror body by remote control from the driver's seat, a drive mechanism for rotating each mirror body by a motor is provided in the mirror housings arranged on the left and right sides. In this case, each of the left and right drive mechanisms is configured to rotate the corresponding mirror body independently of each other.

(Problem to be Solved by the Invention) However, with the conventional configuration as described above, when the user changes and the position of the mirror body is readjusted to suit the user, the left and right mirrors must be adjusted separately. The adjustment had to be made in accordance with the main body, which was very troublesome.

The present invention has been made in view of the above circumstances, and its purpose is to eliminate the need to perform a rotation operation for each of the left and right mirror bodies when rotating the left and right mirror bodies to adjust their positions. An object of the present invention is to provide an electric mirror device for an automobile that can improve usability.

[Structure of the Invention] (Means for Solving the Problems) The present invention includes a left-side and right-side drive mechanism for rotating mirror bodies arranged on the left and right sides, and a remote-controlled drive mechanism arranged on the driver's seat side. The present invention is intended for an electric mirror device for an automobile in which a control signal is given from the device to each drive mechanism to selectively rotate the left and right mirror bodies, and an auto mode selection switch is provided on the driver's seat side. The selection switch is turned on, and when one mirror body is rotated by the control signal, the other mirror body is also caused to follow the rotation by the drive mechanism, and the control circuit is configured to cause the following rotation to occur. The present invention is characterized in that the amount of rotational displacement of the mirror body rotated by the control signal is controlled so as to have a predetermined ratio relationship with the amount of rotational displacement of the mirror body rotated by the control signal.

(Function) According to the electric mirror device for automobiles of the present invention, when one mirror body is rotated by the remote control device with the auto mode selected by the auto mode selection switch, the control circuit causes the other mirror body to be rotated. The mirror body is also given a control signal to its drive mechanism to follow the rotation, and since the follow-up rotation 2 at this time is determined by a predetermined ratio relationship, this allows the user to By rotating only the mirror body, the positions of both mirror bodies can be determined without rotating the other mirror body.

(Example) Hereinafter, an example in which the present invention is applied to an electric door mirror device for an automobile will be described with reference to the drawings.

First, in FIG. 1 showing an outline of the electrical configuration, reference numeral 1 denotes a left side door mirror provided on the left side door of an automobile (not shown) for viewing the left rear side from the driver's seat side. In this door mirror 1, 2 is a mirror body, which is rotatably provided so that the angle of its reflection can be varied. Reference numeral 3 denotes a drive mechanism including two motors for rotating the mirror body 2 vertically and horizontally, and 4 a position detector that detects the rotational position of the mirror body 2.

Reference numeral 5 designates a right-side door mirror constructed in exactly the same manner as the left-side door mirror described above, and is comprised of a mirror body 6, a drive mechanism 7, and a position detector 8, and is provided on the right door.

Reference numeral 9 denotes a remote control device provided on the driver's seat side, which is composed of an operation switch section 10 and a control circuit 11. The operation switch unit 10 is provided with a left/right changeover switch 12, an auto mode selection switch 13, and a drive zoom switch 14. It is designed to output operation signals. In addition, in the control circuit 11, 15 is a microcomputer that operates as described later, and the human-powered boat! . are connected to the respective switches 12, 13 and 14 of the operation switch unit via an interface circuit 16, and input interface circuits 17 and 1 are connected to the human-powered boats IL and Ill, respectively.
The position detectors 4 and 8 are connected via 8.

In addition, drive circuits 1 are provided at the output ports OL and OR, respectively.
The drive mechanisms 3 and 7 are connected via 9 and 20.

Next, the operation of this embodiment will be described with reference to FIG. 2. Furthermore, this figure 2 shows the microcomputer 1.
The part directly related to the gist of the present invention among the control contents of 5.
In other words, it shows the control contents when the auto mode selection switch 13 is turned on.

First, a case will be described in which the left and right mirror bodies 2 and 6 are rotated separately. In this case, while the auto mode selection switch 13 is kept off, the left and right mirror bodies 12 are switched by the left and right changeover switch 12 of the remote control device 9.
and 6 to be rotated, and then output an operation signal to rotate the mirror body 2 or 6 vertically or horizontally using the drive switch 14. This operation signal is output to the interface. The signal is applied to the microcomputer 15 via the Ace circuit 16. As a result, when the left mirror body 2 is selected, for example, the microcomputer 15 comes to give a drive signal from the output port OL to the drive circuit 19, and thereby the drive circuit 19 drives the drive mechanism 3. The mirror body 2 is rotated in the corresponding direction, that is, in the vertical or horizontal direction.

At this time, the position detector 4 detects the rotational position of the mirror body 2 and supplies the position detection signal to the input port IL of the microcomputer 15 via the human interface circuit 17.

In addition, the right side mirror body 6 can be
is selected, the microcomputer 1 is activated based on the operation signal of the drive switch 14 in exactly the same manner as described above.
5 operates a drive mechanism 7 via a drive circuit 20 to rotate the mirror body 6. This allows the user to rotate the left and right mirror bodies 2 and 6 to desired positions.

By the way, when rotating the left and right mirror bodies 2 or 6 in this way, the user must do so. In some cases, the adjustment is made in response to the current situation, and apart from this, when a user changes, the +li adjustment may be made in accordance with the seating position or driving posture of the user. In the former case, it is necessary to rotate the left and right mirror bodies 2 and 6 to the desired position according to the situation as described above, but in the latter case, the user needs to rotate the left and right mirror bodies 2 and 6 to the desired position. Normally, the rotational positions of both the mirror bodies 2 and 6 are adjusted so that the left and right rear of the car can be seen from the outside. The amount of rotational displacement of and 6 is determined geometrically. Therefore, the left and right mirror bodies 2 and 6
Corresponding to the amount of rotational displacement of one, the amount of rotational displacement of the other is also determined by a predetermined ratio relationship determined by the geometrical relationship.

When the user turns on the auto mode selection switch 13, the microcomputer 15 starts the auto mode program according to the flowchart shown in FIG. That is, first, in judgment step S1, it is judged whether or not the auto mode selection switch 1' is turned on. 1 waits for the drive switch 14 to be operated. For example, when the drive switch 14 is operated to rotate the mirror body 2 or 6 in the vertical direction,
In this step S2, it is determined that rYESJ, and in the next determination step S, it is also determined as "YES", leading to the subsequent determination step S4. At this time, the microcomputer 15 gives a control signal to the left side door mirror 1 in the same manner as described above in response to the operation signal of the drive switch 14, thereby rotating the mirror body 2 in the vertical direction. At the same time, the position detection signal from the position detector 4 is transmitted to the input port I via the human interface circuit 17 in the same manner as described above.
It will be given to L. Thereby, the microcomputer 15 calculates and stores the amount of rotational variation ΔX in the vertical direction. Therefore, in step S4, since the rotational displacement amount ΔX has been displaced as described above, rYESJ is determined, and the process proceeds to the next processing step S5. In this step S, the microcomputer 15 generates a rotational displacement amount ΔX for the right mirror body 6, which is determined based on the above-mentioned predetermined ratio relationship, in response to the rotational displacement amount ΔX of the left mirror body 2.
In addition to calculating the value of X', a drive signal corresponding to the amount of rotational offset ΔX' is supplied to the drive circuit 20 from the output port OR. As a result, the mirror body 6 of the right side door mirror 5 is rotated in the vertical direction by the drive mechanism 7. After this, the process returns to step S1.

Next, when the drive switch 14 is operated to rotate the mirror body 2 or 6 in the left-right direction, the microcomputer 15 passes through steps 81 and S2, and then determines rNOJ in step S, as described above. Similarly, based on the rotational displacement amount Δy of the left mirror body 2 rotated in the left-right direction, the rotational displacement amount Δy'' of the right mirror body 6 is calculated from a predetermined ratio relationship. Then, rYES in step S7
After determining J, in the subsequent step S7, a drive signal corresponding to this rotational displacement amount Δy' is given to the drive circuit 20 from the output boat OR. As a result, the mirror body 6 of the right side door mirror 5. is rotated in the left-right direction by the drive mechanism 7. Thereafter, the process returns to step S, and the process waits for the drive switch 14 to be operated.

According to this embodiment, when the auto mode is selected by the auto mode selection switch 13, the mirror body 2 of the left side door mirror 1 is controlled by the remote control device 9.
When a rotation operation is performed on the mirror body 2, the control circuit 11 calculates and follows the rotational displacement amount of the right side door mirror 5 with respect to the mirror body 6 from a predetermined ratio relationship based on the rotational displacement amount of the mirror body 2. Since the mirror body is rotated, it is not necessary for the user to make rotation settings for both the left and right mirror bodies 2 and 6, and the device is easy to use.

In the above embodiment, the rotation of the right mirror body 6 is controlled based on the amount of rotational displacement of the left mirror body 2, but the present invention is not limited to this. The rotation of the left mirror main body 2 may be controlled based on the amount, and other modifications may be made as appropriate.

[Effects of the Invention] As explained above, according to the electric mirror device for an automobile of the present invention, when the auto mode selection switch is turned on, one of the left and right mirror bodies can be operated from the remote control device. When a control signal is given to the driving machine {1I1 and the rotation operation is performed, the other mirror bodies are also caused to follow the rotation by the control circuit, and the rotational displacement 2 at that time is set according to a predetermined ratio relationship. Unlike the conventional method, the user does not have to rotate the left and right mirror bodies individually, which has the excellent effect of improving usability. It is something.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a schematic diagram of the electrical configuration, and FIG. 2 is a flowchart showing the contents of the auto mode program. In the drawings, 1 and 2 are right and left side door mirrors 2 and 6 are mirror bodies, 3 and 7 are drive mechanisms, 9 is a remote control device,
11 is a control circuit, 13 is an auto mode selection switch, 1
4 is a drive switch, 15 is a microcomputer, 19
and 20 is a drive circuit.

Claims (1)

[Claims] 1. It is equipped with left and right drive mechanisms for rotating the mirror bodies arranged on the left and right, and a control signal is given to each of the drive mechanisms from a remote control device arranged on the driver's seat side to rotate the left and right mirrors. In an automobile electric mirror device that selectively rotates the main body, one mirror body is rotated by an auto mode selection switch provided on the driver's seat side and the control signal when this selection switch is turned on. and a control circuit that causes the other mirror body to follow and rotate when the other mirror body is rotated by the drive mechanism, and the control circuit adjusts the amount of rotational displacement of the mirror body that is rotated to follow the rotation of the mirror that is rotated by the control signal. An electric mirror device for an automobile, characterized in that the electric mirror device for an automobile is configured to be controlled to have a predetermined ratio relationship with the amount of rotational displacement of the main body.