CN-122009022-A - Control method and device for vehicle rearview mirror

CN122009022ACN 122009022 ACN122009022 ACN 122009022ACN-122009022-A

Abstract

The application provides a control method and a control device for a vehicle rearview mirror, which are applied to the technical field of automobiles, wherein the method comprises the steps of detecting whether a current vehicle meets rearview mirror adjusting conditions or not in the turning process of the current vehicle; when the current vehicle is detected to meet the rearview mirror adjusting condition, the first position information of the current vehicle at a target time point is predicted, the second position information of the straight-going vehicle at the target time point is predicted, the third position information of the rearview mirror in the current vehicle is determined according to the first position information, the relative position of the rearview mirror to the straight-going vehicle is determined according to the second position information and the third position information, the target angle of the rearview mirror is determined according to the relative position, and the rearview mirror is controlled to be adjusted to the target angle, so that the angle of the rearview mirror is adjusted based on the prediction of the vehicle position when the vehicle turns, the driver can acquire the visual field information of the rear coming vehicle as early as possible, the reaction time is reserved for the driver, and the collision risk is reduced.

Inventors

YANG YANG
YE SONGLIN
WANG JUNLIN
WU WEI

Assignees

重庆赛力斯凤凰智创科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260320

Claims (10)

1. A method of controlling a vehicle rearview mirror, the method comprising: Detecting whether the current vehicle meets the rearview mirror adjusting condition or not in the turning process of the current vehicle; when the current vehicle is detected to meet the rearview mirror adjustment condition, predicting first position information of the current vehicle at a target time point, and predicting second position information of a straight vehicle at the target time point; Determining third position information of a rearview mirror in the current vehicle according to the first position information, and determining a relative position of the rearview mirror to the straight-going vehicle according to the second position information and the third position information; and determining a target angle of the rearview mirror according to the relative position, and controlling the rearview mirror to be adjusted to the target angle.
2. The method of claim 1, wherein predicting first location information of the current vehicle at a target point in time during a turn of the current vehicle comprises predicting first location information of the current vehicle at the target point in time based on a turn angle speed and a turn radius of the current vehicle; the predicting the second position information of the straight-moving vehicle at the target time point comprises predicting the second position information of the straight-moving vehicle at the target time point according to the initial relative position information of the straight-moving vehicle and the current vehicle, the speed of the straight-moving vehicle and the acceleration of the straight-moving vehicle.
3. The method according to claim 1, wherein determining third position information of a mirror in the current vehicle from the first position information comprises: and determining a current course angle of the current vehicle, and determining third position information of a rearview mirror in the current vehicle according to the current course angle and the first position information.
4. The method of claim 1, wherein the relative position includes a relative transverse component and a relative longitudinal component, and determining the relative position of the mirror to the straight-going vehicle based on the second position information and the third position information includes: Determining a relative lateral component of the rearview mirror to the straight-ahead vehicle according to the abscissa information in the second position information and the abscissa information in the third position information; And determining the relative longitudinal component from the rearview mirror to the straight-moving vehicle according to the ordinate information in the second position information and the ordinate information in the third position information.
5. The method of claim 1, wherein the relative position includes a relative transverse component and a relative longitudinal component, the target angle is a target relative azimuth angle of the mirror to the straight ahead vehicle, determining the target angle of the mirror from the relative position includes: a target relative azimuth angle of the rearview mirror to the straight ahead vehicle is determined from the relative transverse component and the relative longitudinal component.
6. The method of claim 1, wherein the target point in time is an intermediate point in time of a turn completion time of the current vehicle, the turn completion time being determined from a speed of the current vehicle, a turn path length, the turn path length being determined from a turn angle, a turn radius.
7. The method according to any one of claims 1-6, wherein detecting whether the current vehicle meets a rearview mirror adjustment condition during a turn of the current vehicle comprises: Predicting collision time of the current vehicle and the straight vehicle; determining collision probability of the current vehicle and the straight vehicle according to the collision time; and when the collision probability is larger than a probability threshold value, determining that the current vehicle meets a rearview mirror adjustment condition.
8. The method of claim 7, wherein predicting the collision time of the current vehicle and the straight vehicle comprises: Predicting the average relative speed of a straight vehicle relative to the current vehicle in the turning completion time; and predicting the collision time of the current vehicle and the straight vehicle according to the average relative speed and the initial relative position information of the straight vehicle and the current vehicle.
9. The method of claim 7, wherein determining the probability of collision of the current vehicle and a straight vehicle based on the collision time comprises: and comparing the collision time with the turning completion time and the driver reaction time of the current vehicle, and determining the collision probability of the current vehicle and the straight vehicle according to a comparison result.
10. A control device for a vehicle rearview mirror, the device comprising: The rearview mirror adjusting condition detection module is used for detecting whether the current vehicle meets the rearview mirror adjusting condition or not in the turning process of the current vehicle; The position information prediction module is used for predicting first position information of the current vehicle at a target time point and predicting second position information of the straight vehicle at the target time point when the current vehicle is detected to meet rearview mirror adjustment conditions; The relative position determining module is used for determining third position information of the rearview mirror in the current vehicle according to the first position information and determining the relative position from the rearview mirror to the straight-going vehicle according to the second position information and the third position information; And the rearview mirror adjusting module is used for determining a target angle of the rearview mirror according to the relative position and controlling the rearview mirror to be adjusted to the target angle.

Description

Control method and device for vehicle rearview mirror Technical Field The application relates to the technical field of automobiles, in particular to a control method and a control device for a vehicle rearview mirror. Background In a vehicle, a rearview mirror is an auxiliary component for a driver to observe road conditions behind and beside the vehicle and avoid running risks, and the adjustment angle and the position of the rearview mirror are related to driving safety and running convenience. When the vehicle turns, most of the driver's attention is focused on the front, but the focus on the rear-side vehicle position in the rearview mirror is lacking, which easily causes problems such as collision. Disclosure of Invention In view of the above problems, it is proposed to provide a control method and apparatus for a vehicle mirror that overcomes or at least partially solves the above problems, comprising: A method of controlling a vehicle rearview mirror, the method comprising: Detecting whether the current vehicle meets the rearview mirror adjusting condition or not in the turning process of the current vehicle; when the current vehicle is detected to meet the rearview mirror adjustment condition, predicting first position information of the current vehicle at a target time point, and predicting second position information of a straight vehicle at the target time point; Determining third position information of a rearview mirror in the current vehicle according to the first position information, and determining a relative position of the rearview mirror to the straight-going vehicle according to the second position information and the third position information; and determining a target angle of the rearview mirror according to the relative position, and controlling the rearview mirror to be adjusted to the target angle. Optionally, predicting first position information of the current vehicle at a target time point in the turning process of the current vehicle, wherein the first position information of the current vehicle at the target time point is predicted according to the turning angular speed and the turning radius of the current vehicle; the predicting the second position information of the straight-moving vehicle at the target time point comprises predicting the second position information of the straight-moving vehicle at the target time point according to the initial relative position information of the straight-moving vehicle and the current vehicle, the speed of the straight-moving vehicle and the acceleration of the straight-moving vehicle. Optionally, determining third position information of the rearview mirror in the current vehicle according to the first position information includes: and determining a current course angle of the current vehicle, and determining third position information of a rearview mirror in the current vehicle according to the current course angle and the first position information. Optionally, the relative position includes a relative transverse component and a relative longitudinal component, and determining the relative position of the rearview mirror to the straight-ahead vehicle according to the second position information and the third position information includes: Determining a relative lateral component of the rearview mirror to the straight-ahead vehicle according to the abscissa information in the second position information and the abscissa information in the third position information; And determining the relative longitudinal component from the rearview mirror to the straight-moving vehicle according to the ordinate information in the second position information and the ordinate information in the third position information. Optionally, the relative position includes a relative transverse component and a relative longitudinal component, the target angle is a target relative azimuth angle of the rearview mirror to the straight-ahead vehicle, and determining the target angle of the rearview mirror according to the relative position includes: a target relative azimuth angle of the rearview mirror to the straight ahead vehicle is determined from the relative transverse component and the relative longitudinal component. Optionally, the target time point is an intermediate point of a turning completion time of the current vehicle, the turning completion time is determined according to a speed of the current vehicle and a turning path length, and the turning path length is determined according to a turning angle and a turning radius. Optionally, during turning of the current vehicle, detecting whether the current vehicle meets a rearview mirror adjustment condition includes: Predicting collision time of the current vehicle and the straight vehicle; determining collision probability of the current vehicle and the straight vehicle according to the collision time; and when the collision probability is larger than a probability threshold value, determining that