A method and device for expanding the viewing angle of a vehicle exterior rearview mirror

Abstract

The invention discloses a device for expanding a visual angle of an outside rear-view mirror of a vehicle. The device comprises an assistant rear-view mirror which is arranged above the outside rear-view mirror of the vehicle, a sensor group which is used for collecting motion signals of the vehicle, and a controller which is used for controlling rotation of the assistant rear-view mirror through a transmission execution mechanism, wherein the controller is used for receiving data collected by the sensor group, judging the running state of the vehicle according to the collected data, and generating a control command to control the transmission execution mechanism to rotate, so that the assistant rear-view mirror is driven to rotate to reduce the dead zone of the visual angle of the vehicle. The invention further provides a method for expanding the visual angle of the outside rear-view mirror of the vehicle. The device and method can be used for adaptively adjusting the angle of the assistant rear-view mirror according to the running state of the vehicle, thereby enlarging the view of a driver and reducing the dead zone.

Description

technical field [0001] The invention relates to an optical observation device for a motor vehicle, in particular to a method and a device for expanding the viewing angle of a vehicle exterior rearview mirror. Background technique [0002] The vehicle rearview mirror provides the driver with the rear and side rear vehicle status during vehicle driving, including the interior rearview mirror and the exterior rearview mirrors on both sides. Usually, the interior rearview mirror observes the state behind the car, and the exterior rearview mirrors on both sides are used to observe the state on both sides, and are also used for reversing into the garage, side parking, etc. During driving, if you need to change lanes, you need to observe the status of the vehicles behind and on the sides in advance, but the vehicles that are almost parallel to the body are invisible to the rearview mirror and side rearview mirror (such as image 3 ), this invisible area is called a blind spot, whic...

AI Technical Summary

Problems solved by technology

Although the miniature rearview mirror can see that there is nothing in the blind spot, but because it is too small, the imaged scene will be small and the image will be seriously distorted; when the main mirror angle of the rearview mirror is adjusted, the miniature rearview mirror will be adjusted together, resulting Functional decline

Although the double-curvature rearview mirror increases the viewing angle, the effect is not good, and the blind area is also large

Images