JP2001310679A - Rearview mirror device - Google Patents

Abstract

(57) [Summary] An object of the present invention is to realize a rearview mirror device in which the appearance near the vehicle is improved when the course is changed or when the vehicle is stopped. A turning unit is capable of turning left and right rearview mirrors of a vehicle independently up, down, left and right, and when the vehicle speed is equal to or lower than a predetermined value, the rearview mirrors are directed downward and inward from a standard position by a predetermined amount. When the course change operation is detected at this time, only the rearview mirror on the side related to the course change is returned to the standard position. Further, when the vehicle is stopped and a vehicle start operation is detected, the rearview mirror can be returned to the standard position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rearview mirror device, and more particularly to a rearview mirror for automatically changing the angle of a rearview mirror to prevent a driver from overlooking an obstacle such as a pedestrian. It concerns the device.

[0002]

2. Description of the Related Art Pedestrians and two-wheeled vehicles are afraid of approaching a vehicle when the speed of the vehicle is high (hereinafter referred to as vehicle speed). However, when the speed of the vehicle is low, they can approach without much fear. Therefore, it is preferable that the rearview mirror can be viewed closer to the vehicle when the vehicle speed is low, and it is preferable that the outside of the vehicle can be visually recognized when the vehicle speed is high.

[0003] In order to improve the visibility of the tractor that constitutes the connected vehicle together with the trailer, the applicant of the present application disclosed in Japanese Patent Application No. A rear-view mirror device has been proposed in which the vicinity of a vehicle is imaged to reduce oversight of an obstacle by a driver. However, in cab-over-type vehicles such as trucks, tractors, and buses, the driver's seat is located at a high position, and the rearview mirror is also mounted at a high position. It has been found by the present inventor that the appearance of has not changed much.

If there is a pedestrian or the like in this portion, there is a danger of contact with the vehicle body due to the driver's oversight of obstacles when turning while traveling forward. There is a risk that pedestrians or the like may be involved in the front wheels. In addition, some models have an auxiliary mirror for viewing the underside, but the mirror area is too small to provide sufficient visibility. When a moving object is captured, the driver's attention is concentrated on the main mirror, and there is also a problem that the auxiliary mirror is neglected.

On the other hand, in Japanese Utility Model Laid-Open Publication No. 2-86839, many proposals have been made to control the mirror downward when the gear is in the reverse position. Such a technique aims at visually recognizing the periphery of the rear wheel when the vehicle is traveling backward, and there is a problem that oversight of an obstacle near the front wheel cannot be reduced. Therefore, the present inventor has filed patent application 2000-762.
In No. 72, when the vehicle speed is low or the gear position is in the reverse position, the rearview mirror is turned so as to face inward and downward, thereby improving the visibility of obstacles especially near the front wheels of the vehicle. It reduces the risk of accidents.

[0006]

However, in the case of Japanese Patent Application No. 2000-76272, when traveling in the left lane at a low speed, for example, when an obstacle or the like is in front, even when it is desired to move to the right lane, Since the rearview mirror is facing inward and downward, there is a problem that the right lane cannot be seen in a wide range, which involves danger.

[0007] In Japanese Patent Application No. 2000-76272, the rearview mirror is returned to the standard position when the vehicle is stopped. Therefore, when the vehicle is stopped, the vehicle is stopped, for example, on the road shoulder. If you are looking backwards in the rearview mirror to enter the main road, you may not be able to see other vehicles traveling in the driving lane unless you can see not only the outside but also the outside direction. Will accompany.

However, since a pedestrian or the like normally comes close to the vehicle when the vehicle is stopped, it is desirable that an obstacle near the vehicle is not easily overlooked. It was not satisfactory in terms of compatibility. On the other hand, Japanese Patent Laid-Open No. 6-166358 discloses a technique of detecting the operation of a flasher and a steering angle, and, when the flasher is operated, rotating a rearview mirror related to a course change outward according to the steering angle. However, in this technology, since the rearview mirror is not inwardly controlled at low speed traveling, the basic control contents are different, and the expected accident of contact or entrainment near the vehicle is prevented. Not intended.

Accordingly, it is an object of the present invention to realize a rearview mirror device in which an oversight of an obstacle near the vehicle is reduced as much as possible when changing course or stopping.

[0010]

In order to achieve the above object, a rearview mirror device according to the present invention comprises: a turning portion for turning left and right rearview mirrors of a vehicle independently up, down, left, and right;
A vehicle speed detection unit, a course change operation detection unit, and, when the vehicle speed is equal to or less than a predetermined value, when the rearview mirror is turned inward and downward by a predetermined rotation amount from the standard position and the course change operation is detected, A control unit that controls the rotating unit so that only the rearview mirror on the side related to the course change returns to the standard position.

That is, in the present invention, as shown in principle in FIG. 1, the upper and lower sides of a rearview mirror 3 of a vehicle (shown as a connected vehicle of a tractor 1 and a trailer 2, but may be an ordinary truck or the like). (Vertical) has a structure that can control the viewing angle β, and when the vehicle speed detected by the vehicle speed detection unit is running at a low speed below a certain value, the control unit controls the rearview mirror 3 via the rotating unit, as shown in FIG. It is turned downward from the position by a predetermined amount of turning to reach the position shown in FIG.

At the same time, the left and right (horizontal) viewing angles α of the rearview mirror 3 can be controlled. As shown in principle in FIG.
By rotating inward from the standard position shown in (1) by a predetermined amount of rotation, the position shown in FIG.

Therefore, when the vehicle is running at a low speed, the downward rotation and the inward rotation of the rearview mirror 3 are simultaneously performed. As a result, it is possible to prevent a collision accident or a collision accident with the obstacle OBS near the vehicle during low-speed traveling.

Up to this point, it is the same as the above-mentioned Patent Application No. 2000-76272, but in the present invention, when a course change operation is further detected by the course change operation detecting section, the control section controls the course change. The rotation unit is controlled so that only the rear mirror on the side returns to the standard position.

Therefore, in the vertical direction of FIG.
From the downward rotation position in (2), it is returned to the standard mirror position in FIG. In the horizontal direction, only the rearview mirror on the side related to the course change, for example, only the left rearview mirror 3, is returned from the rotational position in FIG. 2B to the standard mirror position in FIG. .

Further, in the present invention, in addition to the above configuration, the vehicle further includes a vehicle start operation detecting unit, and the control unit controls the rearview mirror to move a predetermined amount of rotation from the standard position even when the vehicle speed indicates a stopped state. Only when the vehicle is turned inward and downward and the vehicle start operation is detected from this state, the rotating portion can be controlled so that the rearview mirror returns to the standard position.

That is, when the vehicle is stopped, the rearview mirror is directed inward and downward, so that oversight of obstacles near the vehicle is reduced. In addition, when the vehicle starts from this stopped state, the rearview mirror is returned to the standard position. Outside the vehicle, a wider range can be visually recognized, so that safety is improved.

Here, when the vehicle is a connected vehicle of a tractor and a trailer, as shown in FIGS. 1 and 2, the rearview mirror 3 is provided on the tractor 1 and the connection angle detecting means of the connected vehicle is provided. Provided, according to the connection angle, the rearview mirror 3
The control unit may control the rotation unit so that the standard position of the rotation unit changes.

Alternatively, a rearview mirror 3 is provided on the tractor 1 and a camera is mounted so as to rotate together with the rearview mirror 3 so as to photograph the rear side of the trailer 2. The control unit controls the output of the camera. The image is processed to detect the rear end position 2a of the rear side surface of the trailer 2, and the predetermined position when the rotating portion is controlled so that the rear end position 2a comes to the predetermined position of the image of the camera is backed up. The standard position of the mirror 3 may be used.

Therefore, in the case of a connected vehicle including the tractor 1 and the trailer 2, the connection angle of the trailer 2 and the trailer rear end position 2a are detected by an image method, a radar method, a mechanical method, or the like, and the trailer 2 may be bent. The up, down, left, and right angles of the rearview mirror 3 can be controlled in the same manner as described above so that the rear end of the trailer 2 is always located at a predetermined position (standard position) of the rearview mirror 3.

This will be described with reference to FIG. 3 in the case of the horizontal direction. When the vehicle travels in a substantially straight state as shown in FIG. 1A, the position of the rearview mirror 3 is also the same as in FIGS. Although the standard position is shown as shown in (1), as shown in FIG. 3 (2), a bending angle occurs between the tractor 1 and the trailer 2 and the rearview mirror 3 performs control to follow this. If
As shown in FIG. 3 (3), when the vehicle speed falls below a certain value, the rearview mirror is rotated inward based on the following angle, but in this state, a course change operation is detected. In this case, the rear-view mirror is returned to the state shown in FIG.

On the other hand, when the vehicle is stopped, the mirror is turned inward as shown in FIG. 3 (3) when the connected vehicle is stopped while bending and when there is no start operation. Therefore, the obstacle OBS near the vehicle can be visually recognized, but when the vehicle starts operation, the inward turning state is returned to the standard mirror position as shown in FIG. The outside of the vehicle can be visually recognized well.

Although the vertical direction is not shown, the same control may be performed.

[0024]

FIG. 4 shows an electric circuit example (1) of a rearview mirror device according to the present invention. In this circuit example, a calculation unit 11 as a control unit is connected so as to input an output signal from a detection unit 12 and a vehicle speed sensor 13 as a vehicle speed detection unit with respect to a course change operation signal such as a flasher signal or a steering wheel angle signal. Have been.

The arithmetic section 11 supplies an output signal to a vertical rotation motor drive circuit 14 and a horizontal rotation motor drive circuit 15, and the vertical rotation motor drive circuit 14 receives the output signal via a vertical rotation motor drive circuit 16. To rotate the rearview mirror 3 up and down, and a motor drive circuit for left and right rotation.
15 is connected via a left / right rotation motor drive circuit 17 so as to rotate the rearview mirror 3 in the left / right direction.

The starting operation detecting unit 18 is connected to the calculating unit 11. Note that, as the vehicle start operation detecting unit 18, a unit that generates a signal indicating a conventionally well-known state as described below can be used. Stop of emergency stop flashing light Start of right flasher operation Release of parking brake When the gear position changes from the neutral position to the running position (for automatic transmission) With clutch depressed (for manual transmission) With clutch depressed + gear running When the gear is shifted to the position (in the case of a manual transmission) The driving circuits 14 and 15 and the motors 16 and 17 constitute a rotating unit.

FIG. 5 is a block diagram showing the operation unit in the circuit example shown in FIG.
11 shows a flowchart of a control program stored and executed in FIG. Hereinafter, the operation of the embodiment of FIG. 3 will be described along this flowchart. Step S1 : First, the calculation unit 11 determines whether or not the vehicle is stopped based on the output signal of the vehicle speed sensor 13. As a result, if the vehicle is in the stopped state, the process proceeds to step S3, and if not, the process proceeds to step S2.

Step S2 : The vehicle speed detected in step S1 is
Judge whether the speed is 8km / h or less. When the speed is 8 km / h or less, it is determined that the vehicle is traveling at a low speed, and the process proceeds to step S4. Otherwise, the process proceeds to step S9.

Step S3 : If it is determined in step S1 that the vehicle is stopped, it is further determined based on the output signal of the start operation detecting section 18 whether or not the vehicle has started. As a result, if there is a start operation, the process proceeds to step S9,
Otherwise, go to step S2.

Step S4 : It is determined whether there is a course change to the left side of the vehicle. As a result, if there is a course change, the process proceeds to step S6; otherwise, the process proceeds to step S5. Step S5 : It is determined from the output signal of the course change operation detecting section 12 whether or not there is a course change operation to the right side of the vehicle. As a result, if there is a course change operation to the right, the process proceeds to step S7; otherwise, the process proceeds to step S8.

Step S6 : The number of rotating steps of the right rear mirror is determined to be one step downward and one step inward, and the number of rotating steps of the left rear mirror is determined to be zero step both downward and inward, ie, the standard position.

Step S7 : The number of rotation steps of the left rear mirror is determined to be one step downward and one step inward, and the number of rotation steps of the right rear mirror is determined to be zero step both downward and inward, ie, the standard position.

Step S8 : The number of rotation stages of the left and right rear mirrors is determined to be one downward and one inward. Step S9 : The number of rotation stages of the left and right rear mirrors is directed downward
It is determined to be 0 step and 0 step inward, that is, the standard position.

Step S10 : The arithmetic unit 11 sends the left-right rotation motor 17 via the left-right rotation motor drive circuit 15 so that the number of inward rotation steps of the rear-view mirror 3 becomes the number of steps determined in steps S6 to S9. , The rearview mirror 3 is turned inward or outward, or the current position is maintained, and the process proceeds to step S11.

Step S11 : The arithmetic unit 11 operates the vertical rotation motor drive circuit 14 via the vertical rotation motor drive circuit 14 so that the number of downward rotation stages of the rearview mirror 3 becomes the number of stages determined in steps S6 to S9. By giving a control signal to 16, the rearview mirror 3 is turned downward or upward, or the current position is maintained.

Here, in the embodiment shown in FIG. 4 and FIG. 5, as shown in FIG. 1 and FIG. 2, an embodiment in which the vehicle is applied to a truck or a connected vehicle which is not in a bent state. As described above, in practice, the tractor 1 and the trailer 2 often travel with some bending angle, and the embodiment shown in FIGS. 6 and 7 is used to cope with such a situation.

That is, as shown in a circuit example (2) of FIG.
The difference from the circuit example (1) shown in FIG. 4 is that the connection angle detection device 19 is used and this output signal is provided to the calculation unit 11. Also,
The flowchart shown in FIG. 7 is different from the flowchart shown in FIG. 5 in that step S0 is provided before step S1 in the flowchart shown in FIG.

In such a step S0, when the connection angle between the tractor 1 and the trailer 2 is detected by the connection angle detecting device 19, the arithmetic unit 11 having received this detects the connection angle of the rearview mirror 3 corresponding to the connection angle. Determine the standard position. Steps S1 to S9 are performed in the same manner as in the embodiment of FIG. 5, but in step S10, the left and right angles of the rearview mirror determined in step S0 are used as standard positions, and only the angle corresponding to the determined number of steps is used. The rearview mirror is rotated left and right.

Therefore, step S11 is executed in the same manner as in FIG. The mirror control based on the connection angle is described in, for example,
A known technique disclosed in JP-A-10-81174 may be used. In step S0 in the above embodiment, the angle of the rearview mirror is controlled to the standard position by detecting the connection angle between the tractor and the trailer, but as described in Japanese Patent Application No. 20000-3351 according to the present inventors, the connection is performed. A method of controlling the angle of the rearview mirror to a standard position without detecting the angle is also possible.

That is, in this embodiment, a camera is used, the output image thereof is processed to detect the trailing end position of the trailer, and the trailer position of the tractor is always set at a predetermined position in the camera image. The rearview mirror is rotating. Since the camera is mounted together with the rearview mirror so as to photograph the rear side of the trailer, when the rearview mirror rotates, the camera also rotates and the rear end position of the trailer comes to a predetermined position of the image. Become like

This will be specifically described with reference to the principle diagram shown in FIG. First, when the connected vehicle is in a state of zero bending (straight running) as shown in FIG. 1A, it is assumed that the viewing angle α of the camera 4 and the viewing angle β of the mirror 3 have a relationship as illustrated.
In such a state, when turning at a bending angle θ as shown in FIG. 2B, the control unit (not shown) detects the trailing end position 2a of the trailer 2 from the output image of the camera 4. The rear-view mirror 3 is rotated by controlling a rotating unit (not shown) so that the rear end position 2a is located at a predetermined position in the image.

When the rearview mirror 3 rotates, the camera 4 rotates together with the rearview mirror 3, so that the trailing end position 2 a of the trailer 2 in the image of the camera 4
Corresponds to a predetermined position (following line L1 shown in FIG. 9) = standard position. When the bending angle further increases from the state of FIG. 8 (2) and changes to the state of FIG. 8 (3) (the bending angle θ ′), the rearview mirror 3 is similarly rotated based on the output image of the camera 4. As a result, the camera 4 is also rotated. As a result, as shown in FIG. 9, the trailing end position 2a of the trailer 2 is controlled to coincide with the following line L2.

In this manner, it is possible to control the trailing end position 2a of the trailer 2 to be always at the window of the camera image, that is, a predetermined position of the rearview mirror, without attaching any component to the trailer 2. Further, in this case, the predetermined position of the camera image can be set to the center of the horizontal coordinate of the image (the example in FIG. 9).

As a result, if, for example, the viewing angle of the rearview mirror 3 and the camera 4 is the same, the rear end position 2a of the trailer 2 is always visible in the center of the rearview mirror 3 from the driver's seat. Note that this center position may be offset left and right. FIG. 10 shows an electrical circuit example (3) of a rearview mirror device that realizes the principle of FIGS. 8 and 9, in which a CCD camera is used as a camera and the output of the CCD camera 4 is shown. The image is stored in the image memory 6a, and the image processing unit 6b performs a differentiation process, an edge process, a binarization process, and the like based on the data stored in the image memory 6a, and gives the processing result to the calculation unit 6c.

The calculation unit 6c determines the shape of the trailing surface of the trailer, detects the coordinates of the trailing end position, determines the relationship between the trailing end position and a predetermined position, and determines the result as described later. This is given to the step motor drive circuit 7a. The step drive circuit 7a rotates the step motor 7b, whereby the camera 4 and the mirror 3 rotate together.

The image memory 6a, the image processing unit 6b, and the calculation unit 6c in FIG. 10 form a control unit, and the step motor drive circuit 7a and the step motor 7b form a rotation unit. FIG. 11 is a flowchart showing an embodiment (1) of the arithmetic processing executed by the arithmetic unit 6c shown in FIG. 10. The operation of the circuit example of FIG. 10 will be described below with reference to this flowchart.

First, the calculation unit 6c determines whether or not the trailing surface of the trailer 2 has been detected from the image of the camera 4 output after performing the differentiation processing, edge extraction, and binarization processing in the image processing unit 6b. (Step S21). Regarding the trailing surface detection of the trailer 2, reference can be made to JP-A-5-313736, JP-A-8-320999, JP-A-9-16782, and JP-A-10-97699.

That is, edge detection is performed from the camera image, and the shape of the detected edge as shown in FIG. 12 is compared with a previously stored U-shaped shape having an open mouth. As a result of this comparison, when it is determined that they match, it is determined that the rear side surface 2b of the trailer 2a has been detected, and the X-axis coordinate Xt of the vertical edge in the trailer 2a is detected as the rear end position 2a (step S22).

Thereafter, the coordinates Xt are set in advance to -Xa
It is determined whether or not the distance is between Xa and Xa (step S23). That is, as shown in FIG. 12, in this embodiment, the rear end position 2a, which is a vertical edge, is controlled to be at the X-axis coordinate "0", which is the center position (standard position) of the image. In order to prevent frequent rotation of the step motor 7b, a tolerance of -Xa to Xa is provided for the center coordinate "0" as described above,
When the coordinates Xt are within this range, the camera 4 is not rotated. Note that -Xa to Xa can be set to ± 5 °.

In step S23, when the coordinate Xt is within the above range, the process exits the flowchart. When the coordinate Xt is not in the range, the process proceeds to step S24. Step S24
Then, it is determined whether the position of the coordinate Xt is off on the plus side (outward) or off on the minus side (inward).

As a result, when it is off to the plus side (Xt> X
In a), the step motor 7b is turned outward by one step in step S25, and the process proceeds to step S26. In step S26, the coordinates Xt in the camera image are detected, and the process proceeds to step S27. In step S27, it is determined whether or not the coordinate Xt has become “0”. In this case, if Xt = 0 has not been reached, the process returns to step S25, and steps X25 to S2 are performed until Xt = 0.
Repeat 7. On the other hand, when Xt = 0, the process exits this flowchart.

When it is determined in step S24 that the motor is deviated to the inside (Xt <-Xa), steps S28 to S30 are executed in the same manner as steps S25 to S27, so that the step motor 7b is Rotate in the direction. Step S21
When it is determined that the rear side surface 2b of the trailer 2 has not been detected, the process proceeds to step S31, in which the step motor 7b is rotated to the maximum outward step position, and the process proceeds to step S32.

In step S32, the step motor 7b is turned inward by one step, and the flow advances to step S33. In step S33, it is determined whether or not the camera 4 has detected the trailing surface 2b of the trailer 2.If the trailing surface 2b of the trailer 2 is detected, as in step S21, the process proceeds to step S22. Proceed to S34.

In step S34, it is determined whether or not the step motor 7b has reached the most inward position (the number of steps is zero). If not, the process returns to step S32, and the step motor 7b is further shifted by one step. Only rotate inward. In this way, the rear side 2b of the trailer 2
Steps S32 to S34 are repeated until is detected, and the process proceeds to step S22 when the rear side surface 2b of the trailer 2 is detected.

In step S34, the step motor 7
When it is determined that b has reached the most inward position, the process proceeds to step S35. In step S35, the step motor 7b is held at the most inward position, and the process proceeds to step S36. The most inward position is a normal mirror adjustment position (see FIG. 8 (1)) in which the rotation control of the rear-view mirror 3 is not performed.

In step S36, it is determined whether or not a camera (not shown) installed together with the rear-view mirror 3 and the rotating unit on the opposite side of the tractor 1 has detected the rear side surface 2b of the trailer 2. If this is the case, the trailer 2 is bent to the opposite side and it is not abnormal, and the process exits this flowchart. If not, it is determined that an abnormality has occurred in the apparatus, and a failure warning is generated in step S37.

In this way, as shown in FIG. 9, the trailing end position 2a of the trailer 2 is controlled to the center line L1 as a follow-up line. In the above step S36,
When the rear surface 2b is detected by the camera provided on the opposite side, steps S21 to S30 may be executed in the same manner.

In this embodiment, after executing the modified example of step S0 in FIG. 7 in this way, the same steps S1 to S1 are executed.
2 will be executed.

[0059]

As described above, according to the rearview mirror device of the present invention, the turning portion can turn the left and right rearview mirrors of the vehicle independently up, down, left and right, and the vehicle speed is constant. In the following cases, the rearview mirror is turned downward and inward by a predetermined amount from the standard position, but when a course change operation is detected at this time, only the rearview mirror on the side related to the course change is returned to the standard position. Therefore, the safety at the time of lane change or right or left turn during low-speed running including the stopped state is improved. Further, when the vehicle is stopped and a vehicle start operation is detected, the rearview mirror can be configured to return to the standard position. In this case, oversight near the vehicle while the vehicle is stopped is reduced, and safety is improved. At the time of start, a wide range outside the vehicle can be visually recognized, so that safety is improved.

[Brief description of the drawings]

FIG. 1 is a side view for explaining the operation principle of a rearview mirror device according to the present invention.

FIG. 2 is a plan view for explaining the operation principle of the rearview mirror device according to the present invention.

FIG. 3 is a plan view for explaining an operation principle when a connected vehicle is used in the rearview mirror device according to the present invention.

FIG. 4 is a block diagram showing an electric circuit example (1) of the rearview mirror device according to the present invention.

FIG. 5 is a flowchart of a control program stored and executed in an arithmetic unit in the circuit example shown in FIG. 4;

FIG. 6 is a block diagram showing an electric circuit example (2) used in another embodiment of the rearview mirror device according to the present invention.

FIG. 7 is a flowchart of a control program stored and executed in an arithmetic unit in the circuit example shown in FIG. 6;

FIG. 8 is a plan view for explaining the principle of still another embodiment of the rearview mirror device according to the present invention.

FIG. 9 is a diagram showing the trailing surface of the trailer in the final camera image controlled by the embodiment shown in FIG. 8;

FIG. 10 is a block diagram showing an electric circuit example (3) of the rearview mirror device according to the present invention.

11 is a flowchart of a control program stored and executed in an arithmetic unit in the circuit example shown in FIG. 10;

12 is a diagram showing a relationship between a camera image and a trailer rear surface in the circuit example shown in FIG. 10;

[Explanation of symbols]

 1 Tractor 2 Trailer 2a Rear end position 2b Trailer rear side 3 Rearview mirror 4 Camera 5 Driver's seat 6a Image memory 6b Image processing unit 6c Operation unit 7a Step motor drive circuit 7b Step motor 11 Operation unit 12 Track change operation detection unit 13 Vehicle speed sensor 14 Motor drive circuit for up and down rotation 15 Motor drive circuit for left and right rotation 16 Motor for up and down rotation 17 Motor for left and right rotation 18 Vehicle start operation detection unit 19 Connection angle detection device OBS obstacle .

Claims (4)

[Claims] A turning unit for independently turning left and right rearview mirrors of the vehicle up and down, left and right, a vehicle speed detection unit, a course change operation detection unit, and the rearview mirror when the vehicle speed is lower than a predetermined value. Is turned inward and downward by a predetermined rotation amount from the standard position, and when the course change operation is detected, a control unit that controls the rotation unit so that only the rearview mirror on the side related to the course change returns to the standard position. And a rearview mirror device comprising: 2. The vehicle according to claim 1, further comprising a vehicle start operation detecting section, wherein the control section controls the rearview mirror to inward and downward by a predetermined amount of rotation from a standard position even when the vehicle speed indicates a stopped state. A rearview mirror device that controls the rotating portion so that the rearview mirror returns to the standard position only when the vehicle start operation is detected from this state. 3. The vehicle according to claim 1, wherein the vehicle is a connected vehicle including a tractor and a trailer, the rearview mirror is provided on the tractor, and a connection angle detecting device for the connected vehicle is provided. A rearview mirror device, wherein the control unit controls the rotating unit such that a standard position of the rearview mirror changes according to an angle. 4. The vehicle according to claim 1, wherein the vehicle is a connected vehicle including a tractor and a trailer, wherein the rearview mirror is provided on the tractor and is mounted so as to rotate together with the rearview mirror. A camera for photographing the trailing surface of the trailer, the control unit processes the output image of the camera to detect the trailing end position of the trailing surface of the trailer, and the trailing end position of the image of the camera is A rearview mirror device, wherein the predetermined position when the rotating portion is controlled to be at a predetermined position is a standard position of the rearview mirror.