JPH0315388Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to a fender mirror control device that automatically moves a fender mirror installed in an automobile. 2. Description of the Related Art In recent years, there has been a device for moving a fender mirror (usually one on each side of the front of the vehicle) to a predetermined position while the driver is riding in the vehicle. Proposed examples of such devices include a device that operates the fender mirror when the driver operates a control switch for the fender mirror, and a device that operates the fender mirror according to the movement of the seat on which the driver sits (electronic control seat). . By the way, in addition to the fender mirror, an automobile is provided with a rearview mirror. The driver needs to move both the fender mirror and the rearview mirror so that they match the driver's line of sight. Conventionally, the driver manually operates the rearview mirror to move it to the desired position.
For this reason, the driver operates the fender mirrors using a control switch, and also manually operates the rearview mirror. Furthermore, as described above, the device in which the fender mirror moves automatically in accordance with the movement of the seat has the disadvantage that the positional accuracy of the fender mirror is lower than that of a manually operated rearview mirror. This idea was made in view of the above circumstances.
The purpose is to provide a fender mirror control device that can move the fender mirror in response to the movement of a manually operated room mirror and reliably move the fender mirror to a position that matches the driver's line of sight. It is in. That is, in the present invention, as shown in FIG. 1, the left and right (arrow 2a) and up and down (arrow 2b) moving positions of the rearview mirror 1 are detected by position sensors 3a and 3b such as potentiometers. It is composed of Based on the detection signals from the position sensors 3a, 3b, the fender mirror control circuit 4 calculates the amount of movement of each of the fender mirrors 5a, 5b in the left and right directions and up and down, and outputs a control signal corresponding to each amount of movement. By this control signal, each of the left and right fender mirrors 5a, 5b is controlled by the rearview mirror 1.
It operates according to the movement position of the driver, and is controlled so that it is moved to a position that matches the driver's line of sight. An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a circuit diagram showing the configuration of the fender mirror control device according to the present invention. In the figure, 10 is a controller, which is composed of a microprocessor (CPU) that operates based on a pre-stored program. Reference numerals 11a and 11b are potentiometers which are attached to the rearview mirror (1 in FIG. 1) and detect the horizontal and vertical movement positions of the rearview mirror. The controller 10 receives detection signals from potentiometers 11a and 11b corresponding to the horizontal and vertical movement positions of the rearview mirror. As a result, the controller 10
Based on a pre-stored program, the amount of horizontal and vertical movement of the fender mirror (5a, 5b in FIG. 1) is calculated in accordance with the movement position of the room mirror, and a control signal corresponding to the movement amount is output. That is, the controller 10 operates the left and right fender mirrors by controlling the operations of the transistors 12a to 12d. These transistors 12a to 12d are connected to relay circuits 13a to 13d.
A driving current is passed through each coil Ca to Cd,
It constitutes an amplifier circuit for driving relay circuits 13a to 13d. Reference numerals 14a and 14d are vertical drive circuits that respectively drive each fender mirror, and relay circuits 13a and 14d
The configuration is such that a drive current for forward or reverse rotation is supplied to each motor 15a, 15b according to the operation of motors 13d, 13c, and 13d. Each drive circuit 14a, 14b also includes a motor rotation sensor 16a, 16b (for example, generates two pulses per rotation of the motor 15a, 15b), a limit switch 17a, which detects the limit position of each fender mirror in the horizontal and vertical directions. 17b and 17
c, 17d, and electromagnetic clutches 18a, 18b for switching the rotational drive of the motors 15a, 15b to horizontal or vertical movement. Sensors 16a, 16b are connected to motors 15a, 1
5b is detected and a detection signal thereof is output to the controller 10. As a result, the sensor 16
a and 16b constitute a movement amount detection section that detects the movement amount of each fender mirror 5a and 5b. Further, the limit switches 17a and 17b detect the limit positions of the respective fender mirrors 5a and 5b in the horizontal and vertical directions, and transmit the detection signals to the controller 10.
Output to. This causes the limit switch 17
a, 17b and the controller 10 constitute a movement stop section that stops the movement of each fender mirror 5a, 5b when the movement position of each fender mirror 5a, 5b goes outside a predetermined range. Further, the operation of the electromagnetic clutches 18a and 18b is controlled by the controller 10. Note that 20 is a switch circuit for manual operation by the driver. That is, the switch circuit 20 connects each fender mirror 5
Relay circuits 13a to 13 depending on the state of manual operation for the purpose of moving left and right and directions of a and 5b.
Each coil Ca to Cd of d is excited, and the relay circuit 13
It constitutes a switch circuit for driving a to 13d. Further, 21a to 21h are diodes, 22a to 22e are resistors, 23 is a battery,
24 is a key switch, and 25a and 25b are fuses. The operation of this configuration will be explained. Now, as shown in FIG. 3, the driver 30
Assume that you get in the car 31 and manually operate the rearview mirror 1 so that it matches your line of sight. The controller 10 is informed of the horizontal and vertical movement positions of the rearview mirror 1 detected by potentiometers 11a and 11b shown in FIG. As a result, the controller 10 controls the left and right fender mirrors 5a,
5b (shown in FIG. 3) will be calculated. Now, for example, assume that the rearview mirror 1 is moved to the left. The controller 10 outputs a control signal to the transistors 12a and 12c based on the detection signal of the potentiometer 11a to control the transistors 12a and 12c into an operating state. These transistors 12a, 12
When c operates, current flows through the coils Ca and Ce of the relay circuits 13a and 13c, and the contacts Sa and Sc are turned on. As a result, in the drive circuits 14a, 14b of the left and right fender mirrors 5a, 5b, the motors 15a, 15b are supplied with, for example, a drive current in the normal rotation direction. Here, the electromagnetic clutches 18a, 18b operate in response to control signals from the controller 10 so that the respective fender mirrors 5a, 5b are driven in the left-right direction by the rotational drive of the motors 15a, 15b. That is, the electromagnetic clutch 18a,
By the operation of the motor 18b, the rotational drive of the motors 15a and 15b is transmitted to a mechanical system (not shown) that drives the motors 15a and 15b in the left-right direction. The rotational drive of the motors 15a, 15b is detected by rotation sensors 16a, 16b, and each detection signal is notified to the controller 10. The controller 10 calculates the fender mirrors 5a, 5 in advance.
Based on the amount of movement of b and the detection signals of sensors 16a and 16b, it is determined whether the fender mirrors 5a and 5b have moved to the required positions (in this case, in the left-right direction). When it is determined that the motors 15a and 15b have been moved to the required position, the motors 15a and 15b are controlled to stop.
That is, the controller 10 controls the transistor 12
a, 12c are turned off. At this time, if each fender mirror 5a, 5b moves to a preset limit position, the limit switch 17
a, 17c turn on and send a signal to the controller 10.
LS2 and LS4 are given. Even in this case, the controller 10 will stop the motors 15a and 15b. Next, if the rearview mirror 1 is moved to the right, the controller 10
b, 12d are controlled to be in the on state. Thereafter, the fender mirrors 5a, 5b are moved rightward by the same operation as in the leftward direction and stopped at a predetermined position. Further, when the rearview mirror 1 is moved in the vertical direction, the controller 10 turns on the transistors 12a and 12c if the rearview mirror 1 is moved upward or downward, and turns on the transistors 12b and 12d, respectively, based on the detection signal of the potentiometer 11b. Make it. In this case, the controller 10 operates the electromagnetic clutches 18a, 18b in the opposite direction to the left and right direction. That is, the electromagnetic clutch 18a,
By the operation of 18b, the fender mirrors 5a, 5b
The rotational drive of the motors 15a and 15b is transmitted to a mechanical system (not shown) that drives the motors 15a and 15b in the vertical direction. Here, when the fender mirrors 5a and 5b are moved in the horizontal and vertical directions under the control of the controller 10, the operating states of the circuits are summarized in the table below.

[Table] Here, in the above table, the circle mark indicates that the corresponding transistor and relay circuit are in the on state. In addition, the electromagnetic clutch (18a in Fig. 2,
18b) indicates that the rotational drive of the motors 15a, 15b is transmitted to a left-right mechanical system or a vertical mechanical system. Incidentally, when the driver manually operates the fender mirrors 5a and 5b, this can be done by turning on the key switch 24 shown in FIG. 2 and operating the switch circuit 20. In this way, the moving position of the rearview mirror in each direction is detected by the potentiometers 11a and 11b, and based on the detection results, the controller 1
0, the amount of movement of the fender mirror in each direction is calculated. Then, under the control of the controller 10 based on the calculated movement amount, the fender mirror is moved to a predetermined position in the horizontal and vertical directions. Therefore, as shown in Figure 3,
A driver 30 in a car looks at the rearview mirror 1.
When the fender mirrors 5a and 5b are manually operated so as to match the line of sight of the driver 30, the fender mirrors 5a and 5b can be moved to a position that matches the line of sight of the driver 30 in accordance with the operation of the rearview mirror 1. in this case,
In the present invention, since a movement amount detection section (sensors 16a, 16b) that detects the amount of movement of the fender mirror is provided, so-called feedback control is executed by the controller based on the detection signal of this movement amount detection section. . Therefore, even if, for example, fluctuations in power supply voltage or changes in friction occur,
It becomes possible to move the fender mirror with high precision to a position corresponding to the moving position of the room mirror.
Furthermore, in the present invention, the limit switch 17a,
Since the movement stop part consisting of 17b is provided,
It is possible to stop the fender mirror from moving outside the predetermined range. Therefore, it is possible to reliably prevent the motor, clutch, etc. for driving the fender mirror from being damaged due to the fender mirror exceeding its movement limit.
Further, in the present invention, a switch circuit is provided for driving the relay circuit in accordance with the state of manual operation for moving the fender mirror in the horizontal and vertical directions. Therefore, when a deviation occurs in the relative positional relationship between the rearview mirror and the fender mirror, it is possible to drive the fender mirror and eliminate the positional deviation by manually operating the switch circuit. As described in detail above, according to the present invention, the fender mirror can be automatically moved to a predetermined position in accordance with the operation of the manually operated rearview mirror. Therefore, it is possible to reliably move the fender mirror together with the room mirror to a position that matches the driver's line of sight. Furthermore, since the fender mirror moves automatically, driver operations are performed only on the rearview mirror, making it possible to easily set the entire mirror in the desired position. be.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the basic configuration of a fender mirror control device according to an embodiment of the present invention, and FIG.
1 is a specific circuit diagram of the fender mirror control circuit shown in FIG. 1, and FIG. 3 is a plan view of an automobile for explaining the operation of the circuit shown in FIG. 2. 10... Controller (CPU), 11a, 11
b... Potentiometer, 14a, 14b... Drive circuit.

Claims (1)

[Scope of Claim for Utility Model Registration] A position sensor that detects the horizontal and vertical movement positions of the rearview mirror, a drive circuit that moves the fender mirror horizontally and vertically based on a predetermined drive signal, and detects the amount of movement of the fender mirror. and a movement amount detection section that detects the amount of movement of the fender mirror in the left and right directions and the movement amount of the fender mirror in accordance with each of the left and right and up and down movement positions of the room mirror based on the detection signal of the position sensor and the detection signal of the movement amount detection section. A controller that calculates and outputs control signals corresponding to each movement amount, a coil that is excited in accordance with the control signals output from this controller, and a contact that is activated by the excitation of the coil, and the actuation state of the contact is a relay section that outputs a corresponding drive signal to the drive circuit; a switch circuit that excites a coil of the relay section according to the state of manual operation for moving the fender mirror horizontally and vertically; A fender mirror control device comprising: a movement stop section that detects the horizontal or vertical movement position of the fender mirror and stops the movement of the fender mirror when the movement position is outside a predetermined range.