JPH06286525A - Rear view mirror drive control device and method - Google Patents

Abstract

PURPOSE:To eliminate difference in the downward position and in the returning position of a rear view mirror surface caused by an error in control of the position of the mirror surface when the downward operation and the returning operation are repeated, and to stably control a reverse interlocking rear view mirror by setting the downward position of the mirror surface at the time of withdrawal according to the normal position of the mirror surface. CONSTITUTION:When a downward instruction is output from an instruction output means, a rear view mirror surface is moved to an aimed downward position by an driving means 1, and when a returning instruction is output, the rear view mirror surface is moved to an aimed returning position by the driving means 1, by means of a control means 5. When the returning position of the rear view mirror surface is within a specific range around the aimed returning position, the aimed downward position and the aimed returning position stored in a memory means 4 are held. When the returning position of the rear view mirror surface is not within the specific range around the aimed returning position, the returning position is stored as a new aimed returning position and the memory is revised. A new aimed downward position is thus determined based on the returning position, and the content of the memory is revised.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive control device for adjusting the direction of the mirror surface of a rearview mirror of a vehicle vertically and horizontally.

[0002]

2. Description of the Related Art When a vehicle retreats, an outside rear-view mirror on the passenger side (hereinafter simply referred to as a rear-view mirror) is automatically turned downward so that it is easy to check a road gutter or a white line on a parking frame. There is known a rear-view mirror drive control device that improves the rear visibility.

In this type of drive control device, a left / right changeover switch for selecting the side of the rearview mirrors provided on the driver's side and the passenger's side of the vehicle for adjusting the direction of the mirror surface is set to the right or left, When the shift lever is in the retracted position, the mirror surface on the side selected by the left / right changeover switch is directed downward and inward by a predetermined angle. In this state, if the shift lever is set to a position other than reverse or the left / right selector switch is returned to the neutral position, the mirror surface is returned to the original position, and the rear view during normal operation is secured.

Hereinafter, such control will be referred to as reverse interlocking rearview mirror control. Further, the up and down and inward / outward directions of the mirror surface are referred to as up / down and inward / outward mirror surface positions, respectively, the mirror surface position during normal operation is referred to as a normal position, and the mirror surface position during reverse movement by the reverse interlocking rearview mirror control is referred to as a downward position. Further, the inward and outward directions of the mirror surface are called the left and right directions.

[0005]

By the way, some passengers may set the mirror surface during normal operation sufficiently inward. In such a case, the reverse interlocking rearview mirror control may be used to set the mirror surface further inside. The mirror surface may face inward when facing toward.

Therefore, it can be considered to select whether or not the mirror surface is directed inward when the vehicle retreats in accordance with the normal position of the mirror surface. That is, when the normal position of the mirror surface is within a predetermined range from the inside, the mirror surface is only directed downward and not toward the inside when retracting. On the other hand, if the normal position of the mirror surface is outside the predetermined range, the mirror surface is directed downward and inward when retracting.

FIG. 9 shows an operation regulation range of the mirror surface of the rearview mirror. The rear-view mirror is provided with a sensor for detecting the vertical and horizontal mirror surface positions, and outputs a signal of a frequency corresponding to each mirror surface position, as shown in the figure. Further, the outermost frame in the drawing shows the drive limit position, and the mirror surface is not driven beyond the limit position.

In the range X in the figure, the mirror surface is sufficiently inward, so when the normal position of the mirror surface is in this range X,
When the reverse linkage rear-view mirror control is performed, the mirror surface is only directed downward and not inward. Also,
In the range Y, the mirror surface is sufficiently downward and inward, so when the normal position of the mirror surface is in this range Y, the mirror surface is not directed downward or inward when the reverse linkage rearview mirror control is performed. Further, when the normal position of the mirror surface is in the range Z, the mirror surface is turned downward and inward when the reverse linkage rearview mirror control is performed. The broken line S is a boundary line between the range X and the range Z.

When the downward condition is satisfied, that is, when the left / right selector switch selects either the left or right rearview mirror and the shift lever is set to the retracted position, if the normal position of the mirror surface is within the range Z, the current normal position is set. A downward target position is set as a reference, and the mirror surface is driven downward and inward to move to the downward target position. If the normal position of the mirror surface is within the range X, the downward target position is set based on the current normal position, and the mirror surface is driven downward to move to the downward target position. When the normal position of the mirror surface is within the range Y, the mirror surface is not driven in either the downward direction or the inward direction. When the downward condition is not satisfied, that is, when the shift lever is set to a position other than the reverse position or the left / right changeover switch is returned to the neutral position, the original normal position is used as the return target position to drive the mirror surface to return.

However, there are errors in the position control of the mirror surface due to control errors of the drive control device and stop accuracy of the drive mechanism, and even if the mirror surface is restored with the original normal position as the return target position. Can't stop exactly. Therefore, in the reverse interlocking rear-view mirror control that determines whether or not the mirror surface is directed inward when retreating according to the normal position of the mirror surface, when the normal position of the mirror surface is near the boundary line S, the mirror surface moves to the downward position. Each time the return to the normal position is repeated, the return position becomes the range X or the range Z. At the time of the next retreat, the downward target position is set based on the return position, so the drive control to the inside of the mirror surface is performed at one time, and the drive control to the inside of the mirror surface is not performed at some time. There is a problem that the rearview mirror control becomes unstable.

An object of the present invention is to cause a position control error of the mirror surface when the downward position of the mirror surface at the time of retreating is set according to the normal position of the mirror surface and the downward movement and the returning operation of the rearview mirror surface are repeated. The purpose of this is to eliminate variations in the downward position and the return position and to perform stable reverse-linked rearview mirror control.

[0012]

The invention of claim 1 will be described with reference to FIG. 1, which is a diagram corresponding to claims, and a driving means 1 for driving a rearview mirror and a position detection for detecting a position of a mirror surface of the rearview mirror. Means 2 and a command output means 3 for outputting a downward command for setting the mirror surface of the rearview mirror to the downward position and a return command for returning from the downward position.
In response to the downward command output from the command output unit 3, the storage unit 4 stores the downward target position and the return target position of the rear-view mirror mirror surface determined based on the detected mirror-surface position of the rear-view mirror. The rearview mirror surface is moved to the downward target position stored in the storage means 4 by the means 1, and in response to the return command output from the command output means 3, the driving means 1 stores the storage means 4 in the storage device 4.
And a control means 5 for moving the rear-view mirror surface to a return target position stored in the rear-view mirror drive control device. If the detected return position of the rear-view mirror surface is within a predetermined range around the return target position stored in the storage unit 4, the downward target position and the return target position stored in the storage unit 4 are held. Then, the position detecting means 2 after the returning operation of the rear-view mirror surface
When the return position of the rear-view mirror surface detected in step 4 is not within a predetermined range around the return target position stored in the storage means 4, the storage position of the rear-view mirror surface is set as a new return target position. The above-mentioned object is achieved by updating the stored contents of the above, determining the downward target position again based on the return position, and updating the stored contents of the storage means 4. According to a second aspect of the present invention, a first process of detecting the position of the mirror surface of the rearview mirror, a second process of determining a downward target position and a return target position based on the mirror surface position of the rearview mirror, and downward processing of the rearview mirror surface A third process of storing the target position and the return target position, a fourth process of outputting a downward command for setting the rear-view mirror surface to the downward position, and a downward target position stored in response to the downward command. To a stored return target position in response to the return command, and a fifth process for moving the rear-view mirror surface to the rear mirror, a sixth process for outputting a return command for returning the rear-view mirror from the downward position. The seventh process of moving the rear-view mirror surface and the return position of the rear-view mirror surface detected after the rear-view mirror surface return operation are stored in the third return process. If it is within the predetermined range around the position, this stored content is retained, and if the return position of the rear-view mirror surface is not within the predetermined range around the return target position, the return position of the rear-view mirror surface is newly returned. The above-described object is achieved by setting the target position and executing the eighth processing for determining the downward target position again based on the return position. The control means 5A of the rear-view mirror drive control device according to claim 3 has a first downward target position for directing the rear-view mirror surface downward by a predetermined angle, and a rear-view mirror surface downward for a predetermined angle and inward for a predetermined angle. The second downward target position to face is selected based on the mirror surface position of the rearview mirror, and the downward target position is determined. The control means 5B of the rear-view mirror drive control device according to claim 4 drives the rear-view mirror surface to the return target position by the driving means 1 while feeding back the rear-view mirror surface position detected by the position detection means 2. When the mirror surface position is within a predetermined range around the return target position, the driving means 1 stops driving the rear-view mirror surface. The control means 5C of the rear-view mirror control device according to claim 5 drives the rear-view mirror surface to the downward target position by the driving means 1 while feeding back the rear-view mirror surface position detected by the position detection means 2, and When the mirror surface position falls within a predetermined range around the downward target position, the driving of the rear-view mirror surface by the driving means 1 is stopped. The command output means 3A of the rear-view mirror control device according to claim 6 outputs the downward command at least when the shift lever is set to the backward position. The command output means 3B of the rear-view mirror drive control device according to claim 7 outputs a return command at least when the shift lever is set to a position other than the backward movement.

[0013]

When the downward command is output, the rear-view mirror surface is moved to the downward target position, and when the return command is output, the rear-view mirror surface is moved to the return target position. And
When the return position of the rear-view mirror surface is within a predetermined range around the return target position, the stored downward target position and return target position are held, and the return position of the rear-view mirror surface is set at a predetermined range around the return target position. If not within range,
The stored contents are updated by setting the returning position of the rear-view mirror surface as a new returning target position, and the downward target position is determined again based on the returning position to update the stored contents. As a result, variations in the downward position and the return position are reduced, and stable reverse interlocking rearview mirror control is performed.

[0014]

2 to 4 show the configuration of an embodiment for performing reverse interlocking rearview mirror control via a multiplex communication device. Before describing the configuration of the rear-view mirror drive control device of one embodiment, a multiplex communication device will be described. This multiplex communication device includes a master station 10 and slave stations 100, 200, 250, 30.
0,350,400,450,500,550,60
0, 700, 800, 900, each having a communication line L
Connected by L.

The master station 10 is installed near the driver's seat, for example, and has a communication section 11, a logic section 12, and the like. Communication unit 11
Communicates with each slave station by polling the slave stations 100 to 900. The logic unit 12 is composed of a microcomputer and peripheral components such as a memory, determines the control of the corresponding terminal device based on the operation information of the operation members obtained from the slave stations 100 to 900, and reverse linkage rearview mirror control. I do. In the logic section 12,
Ignition key switch 13 and reverse switch 1
4 is connected. The ignition key switch 13 is closed when the ignition key is in the ON position and supplies a voltage signal from the battery power supply BAT to the logic unit 12.
Further, the reverse switch 14 is closed when the shift lever (not shown) is set to the backward position, and the battery power source BAT
Supplies a voltage signal from the logic unit 12 to the logic unit 12.

The slave station 100 is installed in the vicinity of the driver's seat and is provided with a communication section 101 for communicating with the master station 10 and a plurality of operating members. These operation members include the small lamp switch 102 and the headlamp switch 10.
3, a turn signal switch 104, a hazard switch 105, a horn switch 106, and the like.

The slave station 200 is installed near the driver's seat and includes a communication section 201 for communicating with the master station 10 and a plurality of operating members. These operation members include a passenger seat power window switch 205, a rear seat right power window switch 206, a rear seat left power window switch 207, a central door lock switch 208, and the like.

The slave station 250 is installed in the vicinity of the driver's seat and is provided with a communication section 251 for communicating with the master station 10 and a plurality of operation members. These operation members include a left / right changeover switch 252, a mirror up / down adjustment switch 253, a mirror left / right adjustment switch 254, and the like. The left / right selector switch 252 is a switch for selecting one of the rearview mirrors provided on the driver's seat side and the passenger's seat side for adjusting the direction of the mirror surface. The mirror up / down adjustment switch 253 and the mirror left / right adjustment switch 254 are switches for adjusting the up / down and left / right directions of the rear-view mirror surface selected by the left / right changeover switch 252, respectively.

The slave station 300 is provided on the front left side of the vehicle,
A communication unit 301 that communicates with the master station 10 and a plurality of terminal devices are provided. These terminal devices include a clearance lamp 302, a head lamp 303, a turn signal lamp 304, a horn 305, and the like.

The slave station 350 is built in the outside rearview mirror on the driver's seat side, and is provided with a communication section 351 for communicating with the master station 10 and a plurality of terminal devices. These terminal devices include a mirror surface vertical position detection sensor 352, a mirror surface vertical direction driving actuator 353, a mirror surface horizontal position detection sensor 354, and a mirror surface horizontal direction driving actuator 3.
55 etc. The mirror surface vertical position detection sensor 352 and the mirror surface horizontal position detection sensor 354 detect the vertical position and the horizontal position of the mirror surface, respectively. Further, the mirror surface vertical drive actuator 353 and the mirror surface horizontal drive actuator 355 move the mirror surface in the vertical direction and the horizontal direction, respectively.

The slave station 400 is provided on the front right side of the vehicle,
A communication unit 401 for communicating with the master station 10 and a plurality of terminal devices are provided. These terminal devices include a clearance lamp 402, a head lamp 403, a turn signal lamp 404, a horn 405, and the like.

The slave station 450 is built in the outside rear-view mirror on the passenger side, and includes a communication unit 451 for communicating with the master station 10 and a plurality of terminal devices. These terminal devices include a mirror surface vertical position detection sensor 452, a mirror surface vertical direction drive actuator 453, a mirror surface horizontal position detection sensor 454, and a mirror surface horizontal direction drive actuator 4.
55 etc. The mirror surface vertical position detection sensor 452 and the mirror surface horizontal position detection sensor 454 respectively detect the vertical position and the horizontal position of the mirror surface. The mirror surface vertical drive actuator 453 and the mirror surface horizontal drive actuator 455 move the mirror surface in the vertical direction and the horizontal direction, respectively.

The slave station 500 is provided inside the passenger seat door, and includes a communication section 501 for communicating with the master station 10, a plurality of terminal devices, and operation members. The terminal device includes a power window actuator 502 and a door lock actuator 503, and the operation member includes a power window switch 504.

The slave station 550 is provided inside the driver's seat door, and is provided with a communication section 551 for communicating with the master station 10, a plurality of terminal devices, an operating member and the like. The terminal device includes a power window actuator 552 and a door lock actuator 553, and the operation member includes a power window switch 554.

The slave station 600 is provided inside the left door of the rear seat, and is provided with a communication section 601 for communicating with the master station 10, a plurality of terminal devices, an operating member and the like. The terminal device includes a power window actuator 602 and a door lock actuator 603, and the operation member includes a power window switch 604.

The slave station 700 is provided inside the right door of the rear seat, and is provided with a communication unit 701 for communicating with the master station 10, a plurality of terminal devices, operation members and the like. The terminal device includes a power window actuator 702 and a door lock actuator 703, and the operation member includes a power window switch 704.

The slave station 800 is provided on the rear left side of the vehicle,
A communication unit 801 that communicates with the master station 10 and a plurality of terminal devices are provided. These terminal devices include a tail lamp 802, a turn signal lamp 803, a license lamp 804, and the like.

The slave station 900 is provided on the rear right side of the vehicle,
A communication unit 901 that communicates with the master station 10 and a plurality of terminal devices are provided. These terminal devices include a tail lamp 902, a turn signal lamp 903, a license lamp 904, and the like.

Each of the slave stations 100 to 900 transmits the operation information of the operation member to the master station 10 via the respective communication units 101 to 901. The master station 10 that has received the operation information is the slave station 1
The control of the corresponding terminal device is determined based on the operation information of the operation unit obtained from 00 to 900, and the drive information of the terminal device is transmitted to each slave station 100 to 900 via the communication unit 11. It should be noted that detailed communication protocols and communication frame formats between the master station 10 and the slave stations 100 to 900 are not directly related to the present invention, and a description thereof will be omitted. In addition, the slave stations 100, 200, 300, 4
00,500,550,600,700,800,90
The terminal device 0, the operating member, etc., which are 0, are not directly related to the present invention, and therefore their description is omitted.

FIG. 5 is a diagram for explaining the movement of the mirror surface in the reverse interlocking rearview mirror control of one embodiment. now,
It is assumed that the mirror surface is in the normal position A. When the left / right selector switch 252 is set to L or R, and the reverse switch 14 is closed to establish the downward condition, the current position of the mirror surface, that is, the normal position A is detected, and the normal position A is in any range in FIG. To determine. If the normal position A is within the range Z, the downward target position B for directing the mirror surface downward and inward is calculated with reference to the normal position A. Here, the downward target position B is, for example, a position that is inclined 8 degrees downward and 1 degree inward (to the right) from the normal position A. Also, the normal position A
9 is in the range X in FIG. 9, the downward target position where the mirror surface is directed downward is calculated with reference to the normal position A. Here, the downward target position is, for example, a position tilted downward by 8 degrees from the normal position A. When the normal position A is in the range Y,
Even if the downward condition is satisfied, the mirror surface is not turned downward.

Here, the description will be continued assuming that the normal position A is within the range Z. After the downward target position B is calculated, the current normal position A is set as the return target position when returning from the downward position to the original normal position. Next, the stop accuracy range K2 is set around the downward target position B, and the stop accuracy range K1 is set around the return target position A (= normal position). As described above, since the position control of the mirror surface has an error due to the control error of the drive control device or the stop accuracy of the drive mechanism, if the mirror surface is within the stop accuracy range K2 centered on the downward target position B. , The mirror surface is at the downward target position B, and the mirror surface is at the return target position A.
If it is within the stop accuracy range K1 centered at, the mirror surface is assumed to be at the return target position A. The stop accuracy range K1
And the stop accuracy range K2 may be the same range.

After setting the downward target position B and the return target position A, the mirror surface is directed downward along the route R1.
Drive to. When driving the mirror surface, feedback control is performed based on the mirror surface positions detected by the mirror surface vertical position detection sensors 352, 452 and the mirror surface horizontal position detection sensors 354, 454, and the mirror surface position is within the stop accuracy range K2 of the downward target position B. When it reaches, the drive of the mirror surface is stopped. Here, it is assumed that the mirror surface stops at the position C within the stop accuracy range K2. When the left / right changeover switch 252 is set to the neutral position or the reverse switch 14 is opened to release the downward condition, the mirror surface is driven to the return target position A along the route R2, and the mirror surface position is returned to the return target position. When the stop accuracy range K1 of A is reached, the mirror surface drive is stopped. Here, it is assumed that the mirror surface stops at the position D within the stop accuracy range K1.

Although the mirror surface position D after the return is deviated from the original normal position A, it is considered that the mirror surface position is at the return target position A because it is within the stop accuracy range K1. The reverse interlocking rearview mirror control is performed using the downward target position and the return target position set based on the normal position A.

Here, when the normal position A is near the boundary line S in the range Z shown in FIG. 9, the return position D may deviate from the range Z and enter the range X. In such cases,
When the next downward target position is calculated with reference to the mirror surface position D within the range X, the position where the mirror surface is moved only downward is set as the downward target position. That is, in the next reverse interlocking rearview mirror control, the mirror surface is moved to a position different from the last time. Further, when the mirror surface is returned to the original position, it is not determined whether the mirror surface stops in the range Z or the range X within the stop accuracy range K1. In this way, when the next downward target position and the next return target position are calculated based on the position D after the return and the reverse interlocking rearview mirror control is performed,
Each time, the downward position of the mirror surface varies, and control may become unstable.

Therefore, in the present invention, the normal position A is set to the return target position, the stop accuracy range K1 is set around the return target position, and if the mirror surface position after the return is within the stop accuracy range K1, When the downward condition is satisfied next time, the downward target position and the return target position set with reference to the normal position A last time are used as they are. At the time of returning, the position of the mirror surface is controlled so that the mirror surface position is within the stop accuracy range K1 around the return target position A, so that the reference position in the reverse interlocking rearview mirror control becomes almost constant, and the downward position variation. Disappears.

6 to 7 show a reverse interlocking rearview mirror control program of the microcomputer. Master station 1
When the ignition key switch 13 is closed, the microcomputer of the logic unit 12 of 0 starts executing this control program. In step S1, the downward target position and the return target position set in the target position memory are cleared, the downward middle flag, the downward end flag, and the returning flag are cleared, and the return end flag is set. In a succeeding step S2, it is determined whether the left / right changeover switch 252 is set to R or L and the reverse switch 14 is closed, that is, the downward condition is satisfied. If the downward condition is satisfied, the step is performed. S
If the left / right selector switch 252 is set to the neutral position or the reverse switch 14 is opened and the downward condition is released, the routine proceeds to step S21 in FIG.

When the downward condition is satisfied, it is determined in step S3 whether the returning flag is set, that is, whether the mirror surface is being driven to return. If the returning is in progress, the process proceeds to step S5. The returning flag is cleared and the process proceeds to step S9. If not returning, the process proceeds to step S6.
In step S6, it is determined whether or not the downward middle flag is set, that is, whether the mirror surface is being driven downward. If downward, the process proceeds to step S10, and if not, the process proceeds to step S7. In step S7, it is determined whether or not the downward end flag is set, that is, whether or not the downward drive of the mirror surface is completed. If the downward drive of the mirror surface is completed, the process returns to step S2, and if not, the process proceeds to step S8.

In step S8, the target position memory setting routine shown in FIG. 8 is executed. In step S31, it is determined whether or not the return target position memory has been cleared. If the return target position memory has been cleared, the process proceeds to step S33, and if not, the process proceeds to step S32.
The return target position memory is cleared in step S1 of FIG. In step S32, the mirror surface vertical position detection sensors 352 and 452 and the mirror surface horizontal position detection sensor 3
It is determined whether or not the current position of the mirror surface detected by 54, 454 is within the preset stop accuracy range K1 around the return target position A, and the present position is the stop accuracy range K1.
If the current position is within the stop accuracy range K1, the process returns to step S9 in FIG.

If the return target position memory is cleared or the current position of the mirror surface is not within the stop accuracy range K1 of the return target position A, the downward target position and the return target position are again determined with reference to the current position in step S33. Set the position. When the return target position memory is not cleared and the current position of the mirror surface is within the stop accuracy range K1 of the return target position A, step S33 is skipped and the process returns to step S9 in FIG. The downward target position and the return target position are used as they are for the next reverse interlocking rearview mirror control.

At step S33, the current position of the mirror surface detected by the mirror surface vertical position detection sensors 352, 452 and the mirror surface horizontal position detection sensors 354, 454 is stored in the return target position memory as the return target position A, and as described above. Then, the downward target position is calculated based on the current position and stored in the downward target position memory.

In step S9 after returning from the target position memory setting routine shown in FIG. 8, the mirror surface of the right or left rear-view mirror set by the left / right selector switch 252 is moved by the actuators 352, 354 (or 452, 454). While driving to the downward target position B, the downward middle flag F2 is set and the return end flag is cleared. In the following step S10, it is determined whether or not the mirror surface position has reached the stop accuracy range K2 of the downward target position B. If it is within the stop accuracy range K2, the process proceeds to step S11, and if not, the process returns to step S2. Step S1
In 1, the downward middle flag is cleared and the downward end flag is set, and the process proceeds to step S12. In step S12, the actuators 352, 354 (or 45
2, 454) is stopped, the downward movement of the mirror surface is completed, and the process returns to step S2.

On the other hand, when it is determined in step S2 that the left / right selector switch 252 is set to the neutral position or the reverse switch 14 is opened to cancel the downward satisfaction condition, step S21 of FIG. Go to
It is determined whether or not the returning flag is set. If the mirror surface is in the returning operation and the returning flag is set, the process proceeds to step S26, and if not, the step S22.
Go to. If not returning, it is determined in step S22 whether or not the downward middle flag is set. If the downward middle flag is set and downward, the process proceeds to step S23.
If not, the process proceeds to step S24. If it is neither returning nor downward, it is determined in step S24 whether or not the return end flag is set. If the return operation is completed and the return end flag is set, the process returns to step S2 in FIG. Otherwise, it proceeds to step S25.

In step S25, the mirror surface of the right or left rear-view mirror set by the left / right selector switch 252 is moved to the actuator 352, 354 (or 4).
52, 454) to drive to the return target position A, set the returning flag, and clear the downward end flag. In a succeeding step S26, it is determined whether or not the current position of the mirror surface reaches the stop accuracy range K1 of the return target position A, and if the current position is in the stop accuracy range K1, step S26.
If not, the process returns to step S2 of FIG. In step S27, the in-return flag is cleared and the return end flag is set, and the flow advances to step S12 in FIG. 6 to set the actuators 352, 354 (or 452, 452).
The driving of step 454) is stopped and the mirror surface returning operation is completed.
Then, it returns to step S2 and continues the above-mentioned processing.

In the above embodiment, an example in which the reverse interlocking rearview mirror control is performed via the multiplex communication device is shown.
The present invention can be applied to a rear-view mirror drive control device that does not use a multiplex communication device.

In the above embodiment, when either the left or right rearview mirror is selected by the left and right selector switch and the shift lever is set to the retracted position, the rearview mirror surface is turned downward and the left and right selector switch is returned to the neutral position. However, if the shift lever is set to a position other than the reverse position, the rear-view mirror surface is returned to the normal position, but the downward condition and the return condition are not limited to those in the above embodiment. For example, once the left / right selector switch has been operated, except when a predetermined time has elapsed after the shift lever was set to the retracted position or the neutral position, or when the parking brake was activated and the predetermined time has elapsed, Even if the left / right changeover switch is not operated again, it may be determined that the downward condition and the return condition are satisfied only by the position of the shift lever.

Further, in the above embodiment, only the rearview mirror on the side selected by the left / right changeover switch is made to face downward when moving backward, but both the left and right rearview mirrors may be made to face downward when moving backward.

In the structure of the above embodiment, the mirror surface vertical direction drive actuators 353, 453 and the mirror surface horizontal direction drive actuators 355, 455 serve as driving means, and the mirror surface vertical position detection sensors 352, 452 and the mirror surface horizontal position detection sensors 354, 454. Is a position detecting means, the left / right changeover switch 252 and the reverse switch 14 are command outputting means, a memory built in the logic unit 12 of the master station 10 is a storage means, and a microcomputer built in the logic unit 12 of the master station 10. Respectively constitute the control means.

[0048]

As described above, according to the present invention, the rearview mirror surface is moved to the downward target position stored when the downward command is output, and the stored return is output when the return command is output. In reverse interlocking rearview mirror control that moves the rearview mirror surface to the target position, if the rearview mirror surface return position is within a predetermined range around the stored return target position, the stored downward target position and return target position are stored. If the position is held and the return position of the rear-view mirror surface is not within a predetermined range around the stored return target position, the return position is set as a new return target position and the stored content is updated. Based on the above, the downward target position is determined again and the stored contents are updated, so when the reverse linked rearview mirror control is repeated. Variations in the downward position and the return position caused by position control error of the surface is reduced, it is possible to stable reverse linking rearview mirror control. In addition, a first downward target position for directing the rear-view mirror surface downward by a predetermined angle and a second downward target position for directing the rear-view mirror surface downward by a predetermined angle and further inward by a predetermined angle are set. Since the selection is made based on the return position and the downward target position is determined, the optimum downward position is set, and it becomes easy to confirm the gutter or the white line of the parking frame when reversing.

[Brief description of drawings]

FIG. 1 is a complaint correspondence diagram.

FIG. 2 is a block diagram showing the configuration of an embodiment.

FIG. 3 is a block diagram showing a configuration of one embodiment following FIG.

FIG. 4 is a block diagram showing the configuration of one embodiment following FIG.

FIG. 5 is a diagram for explaining movement of a mirror surface in reverse interlocking rearview mirror control.

FIG. 6 is a flowchart showing a reverse interlocking rearview mirror control program.

FIG. 7 is a flowchart showing a reverse interlocking rearview mirror control program following FIG. 6;

FIG. 8 is a flowchart showing a target position memory setting routine.

FIG. 9 is a diagram showing an operation restriction range of a rear-view mirror surface.

[Explanation of symbols]

1 Drive Means 2 Position Detecting Means 3, 3A, 3B Command Output Means 4 Storage Means 5, 5A, 5B, 5C Control Means 10 Master Station 11, 251, 351, 451 Communication Section 12 Logic Section 13 Ignition Key Switch 14 Reverse Switch 100 , 200, 250, 300, 350, 400, 4
50,500,550,600,700,800,90
0 Slave station 252 Left / right selector switch 253 Mirror up / down adjustment switch 254 Mirror left / right adjustment switch 352,452 Mirror surface vertical position detection sensor 353,453 Mirror surface vertical direction drive actuator 354,454 Mirror surface horizontal position detection sensor 355,455 Mirror surface horizontal direction drive actuator LL Communication line A Normal position (Return target position) B Downward target position K1, K2 Stop accuracy range

Claims (7)

[Claims] 1. A driving unit for driving a rearview mirror, a position detecting unit for detecting a position of a mirror surface of the rearview mirror, a downward command for setting a rear surface of the rearview mirror in a downward position, and a return from the downward position. Command output means for outputting a return command for causing the rear-view mirror surface of the rear-view mirror to be determined based on the detected mirror-surface position of the rear-view mirror, and storage means for storing the return target position. In response to the downward command output from the means, the drive means moves the rear-view mirror surface to the downward target position stored in the storage means, and in response to the return command output from the command output means. The drive means to move the rear-view mirror surface to the return target position stored in the storage means. A rear-view mirror drive control device including means, wherein the control means stores the rear-view mirror surface return position detected by the position detection means after the rear-view mirror surface return operation in the storage means. When it is within a predetermined range around the stored return target position, the downward target position and the return target position stored in the storage unit are held, and the position detection is performed after the returning operation of the rear-view mirror surface. When the return position of the rear-view mirror surface detected by the means is not within a predetermined range around the return-target position stored in the storage means, the return position of the rear-view mirror surface is set as a new return-target position. And updating the stored content of the storage means, determining the downward target position again based on the return position, and updating the stored content of the storage means. Rearview mirror drive control device according to claim. 2. A first process of detecting the position of the mirror surface of the rearview mirror, a second process of determining a downward target position and a return target position based on the mirror surface position of the rearview mirror, and a downward process of the rearview mirror surface. A third process of storing a target position and a return target position, a fourth process of outputting a downward command for setting the rear-view mirror surface to a downward position, and the stored process in response to the downward command. Fifth processing for moving the rear-view mirror surface to the downward target position, sixth processing for outputting a return instruction for returning the rear-view mirror from the downward position, and stored in response to the return instruction. A seventh process of moving the rear-view mirror mirror surface to the return target position, and the rear-view mirror mirror detected after the rear-view mirror mirror surface return operation. If the return position of is within a predetermined range around the return target position stored in the third processing, this stored content is held, and the return position of the rear-view mirror surface is around the return target position. If it is not within the predetermined range, it comprises the eighth processing of setting the return position of the mirror surface of the rearview mirror as a new return target position and determining a downward target position again based on the return position. A characteristic rearview mirror drive control method. 3. The rear-view mirror drive control device according to claim 1, wherein the control means sets a first downward target position for directing the rear-view mirror mirror surface downward by a predetermined angle and the rear-view mirror mirror surface at a predetermined angle. A rear-view mirror drive control device, characterized by selecting a second downward target position facing downward and inward by a predetermined angle based on the mirror surface position of the rear-view mirror, and determining the downward target position. 4. The rear-view mirror drive control device according to claim 1, wherein the control unit controls the drive unit while feeding back the mirror surface position of the rear-view mirror detected by the position detection unit. The rear-view mirror surface is driven to the return target position, and when the mirror surface position of the rear-view mirror is within a predetermined range around the return target position, driving of the rear-view mirror surface by the driving means is stopped. Rearview mirror drive control device. 5. The rear-view mirror drive control device according to claim 1, wherein the control unit feeds back the mirror surface position of the rear-view mirror detected by the position detection unit. Driving the rear-view mirror surface to the downward target position by the driving means, and stopping the driving of the rear-view mirror surface by the driving means when the mirror surface position of the rear-view mirror falls within a predetermined range around the downward target position. A rear-view mirror drive control device characterized by: 6. The rear-view mirror drive control device according to claim 1, wherein the command output means outputs the downward command at least when the shift lever is set to the retracted position. A rearview mirror drive control device characterized by outputting. 7. The rear-view mirror drive control device according to claim 1, wherein the command output means is at least when the speed change lever is set to a position other than a reverse position. A rear-view mirror drive control device that outputs the return command.