JPH0675900U - Vehicle rear view device - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a rear visual recognition device for a vehicle that can change the visual field range in association with the movement of the vehicle when the vehicle moves backward. A rear view device for a vehicle according to the present invention includes a camera 9 mounted on a vehicle 10 so that a rear view can be captured, and a camera 9
Control drive circuits 6 and 7 for changing the rear visual field range and a television monitor 13 for displaying an object photographed by the camera 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle rear view device capable of reducing a rear blind spot of a vehicle as much as possible.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, there is a vehicle rear visual recognition device provided with a camera on a vehicle such as a passenger car. The camera is mounted on the vehicle so as to project the area directly behind the vehicle. A TV monitor is set on the vehicle, and the object displayed on the camera is displayed on the TV monitor. The driver as an occupant can confirm the rear blind spot by visually observing this TV monitor, which improves safety when the vehicle moves backward.

[0003]

[Problems to be solved by the device]

 However, in this conventional vehicle rear-viewing device, the visual field range of the camera is limited, and the visual field range cannot be changed in association with the movement of the vehicle when the vehicle moves backward. There was a problem.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle rear visual recognition device capable of changing a visual field range in association with movement of a vehicle when the vehicle moves backward. It is in.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a vehicle rear-viewing apparatus according to the present invention includes a camera mounted on a vehicle so that a rear view can be captured, a control drive circuit for changing a rear view range of the camera, and It is characterized by including a television monitor for displaying an object photographed by a camera.

[0006]

[Action]

 According to the vehicle rear view device of the present invention, the control drive circuit changes the rear view range of the camera. The TV monitor displays the object captured by the camera. Therefore, the rear blind spot can be eliminated.

[0007]

【Example】

 An embodiment of a vehicle rear visual recognition device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a drive control circuit of a rear visual recognition device for a vehicle according to the present invention. In FIG. 1, 1 is a battery, 2 is a manual switch, 3 is a steering angle sensor, 4 is a vehicle speed sensor, 5 Is a select switch. The select switch 5 includes N (means the shift lever neutral range), D (means the shift lever drive range), R (means the shift lever reverse range) terminals, and the movable switch piece 5a. Have. The positive side of the battery 1 is connected to one side of the manual switch 2, the input side of the steering angle sensor 3, the input side of the vehicle speed sensor 4, and the input side of the select switch 5. The fixed terminal 2a of the manual switch 2 is connected to the first controller 6. The steering angle sensor 3 detects whether the steering wheel is operated to the right, to the left, or when the steering wheel is not operated, and the vehicle speed sensor 4 detects the vehicle speed. That is, the steering angle sensor 3 outputs a pulse corresponding to how many times the steering wheel is turned left and right to the second controller 7, and the vehicle speed sensor 4 outputs a pulse corresponding to the vehicle speed to the second controller 7. . The output side of the steering angle sensor 3, the output side of the vehicle speed sensor 4, the N terminal, the D terminal and the R terminal are connected to the second controller 7. The outputs of the controllers 6 and 7 are input to the camera actuator 8, and the camera actuator 8 controls the camera 9 based on the output conditions of the first controller 6 and the second controller 7. The camera 9 is rotatably mounted on a door mirror 11 on the side far from the driver's seat of the passenger car 10, as shown in FIGS.

The manual switch 2 is used to preferentially manually set the camera 9 by closing it, and by the on / off control of the manual switch 2, the first controller 6 manually drives the camera 9 in the up, down, left and right directions. .

When the manual switch 2 is off and the movable switch piece 5a of the select switch 5 is connected to the N terminal and the D terminal, the second controller 7 sets the output conditions of the steering angle sensor 3 and the vehicle speed sensor 4 as follows. Regardless, as shown in FIG. 2, the camera 9 is fixed at the rear emmetropic position and the visual field range of the camera 9 is H.

Then, when the manual switch 2 is off and the movable switch piece 5a of the select switch 5 is connected to the R terminal, the second controller 7 causes the controller 7 to move the camera 9 to the rear as shown in FIG. The camera 9 is moved as described below based on the output conditions of the steering angle sensor 3 and the vehicle speed sensor 4 while being moved from the normal viewing position H to the near-down visual field position H '.

(1) When the rudder angle sensor 3 detects that the steering wheel is operated to the left, the camera 9 changes the near-down visual field position H to the left (the direction of arrow C shown in FIG. 4) so that the second position is changed. The rotation speed of the camera 9 increases as the vehicle speed is controlled by the controller 7 and increases.

(2) When the steering angle sensor 3 detects that the steering wheel is operated to the right, the camera 9 is controlled by the second controller 7 so that the visual field range H is changed to the right, and The rotation speed of the camera 9 increases as the vehicle speed increases.

(3) When the steering angle sensor 3 detects the non-operation of the steering wheel, the camera 9 stays in the near-down visual field position and its visual field range is not changed.

The video signal of the camera 9 is input to the television monitor 13 via the signal processing circuit 12, and the television monitor 13 displays an image of an object in the visual field of the camera 9.

That is, FIG. 4 shows the field of view of the camera when the vehicle is backed up. As shown in FIG. 4A, the shift lever is in the reverse range and immediately before the vehicle starts to move backward and immediately before the steering wheel is turned to the left. 4B, the field of view of the camera 9 is in the near-down field position H'and looking toward the rear of the vehicle. As shown in FIG. 4B, the shift lever is in the reverse range and the vehicle is When the camera is moved backwards and the steering wheel is turned to the left, the field of view of the camera 9 is changed from the near-down field of view position H'to the left (direction of arrow C) and the left side of the vehicle is seen, as shown in FIG. As shown in (4), when the shift lever is in the reverse range and the handle is turned to the right, it returns to the near-down visual field position H'as shown in FIG.

According to this embodiment, since the camera mounted on the door mirror 11 on the side far from the driver's seat is driven and controlled to change the field of view range, the blind spot when the vehicle moves backward can be eliminated, and The structure that automatically changes the field of view range so that blind spots do not occur in association with the steering wheel operation when the vehicle is moving backward is adopted, which improves safety when the vehicle is moving backward.

[0018]

[Effect of device]

 Since the rear visual recognition device for a vehicle according to the present invention is configured as described above, it has an effect that the visual field range can be changed in association with the movement of the vehicle when the vehicle moves backward.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of a rear visual recognition device for a vehicle according to the present invention.

FIG. 2 is a diagram showing a visual field range at a rear emmetropic position when the vehicle rear visual recognition apparatus according to the present invention is advanced and stopped.

FIG. 3 is a view showing a visual field range of the rear visual recognition device for a vehicle according to the present invention when the vehicle is retreated.

FIG. 4 is a view for explaining the operation of the rear visual recognition device for a vehicle according to the present invention.

[Explanation of symbols]

 2 ... Manual switch 3 ... Rudder angle sensor 4 ... Vehicle speed sensor 5 ... Select switch 6 ... First controller 7 ... Second controller 9 ... Camera 10 ... Passenger car 13 ... TV monitor

Claims (1)

[Scope of utility model registration request] 1. A camera comprising a camera mounted on a vehicle so that a rear image can be captured, a control drive circuit for changing a rear view range of the camera, and a television monitor for displaying an object captured by the camera. A device for visually recognizing the rear of the vehicle, which is characterized in that