Vehicle driving automatic control method and device

A vehicle driving and vehicle technology, applied in control devices, vehicle parts, transportation and packaging, etc., can solve the problems of low driving safety of the main vehicle, wrong braking or braking delay, and inability to recognize lane lines well

Active Publication Date: 2020-11-06
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the case of multiple target vehicles driving in a tunnel, ranging sensors such as lidar cannot identify lane lines well
Therefore, the main vehicle equipped with only lidar is likely to recognize the target vehicle in its own lane as being in a non-own lane, and may recognize the target vehicle in a non-own lane as being in its own lane, which may cause the execution error of the adaptive cruise system of the main vehicle braking or braking delay, the driving safety of the subject vehicle is low

Method used

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  • Vehicle driving automatic control method and device
  • Vehicle driving automatic control method and device
  • Vehicle driving automatic control method and device

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] The following describes the vehicle automatic control method and device according to the embodiments of the present invention with reference to the accompanying drawings.

[0031] figure 1 It is a flow chart of a vehicle automatic control method according to an embodiment of the present invention.

[0032] Usually, the laser radar is assembled on the front, side, or rear of the vehicle to complete different functions such as front-view collision avoidance, side collision avoidance, and rear-view collision avoidance. In pr...

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Abstract

The invention a vehicle driving auto-control method and device, wherein the method comprises: acquiring first and second images of an environment in front of a main vehicle through a front 3D camera,and recognizing a front target vehicle and a rear target vehicle; acquiring tunnel information and speed limit information; changing settings of cruise speed upper limit and cruise safety distance ofthe main vehicle according to the tunnel information and the speed limit information; adjusting focal length of the front 3D camera according to the tunnel information; performing intra-tunnel cruisecontrol on motion parameters of the main vehicle according to motion parameters of the front target vehicle and motion parameters of the rear target vehicle. Therefore, driving safety of vehicles in atunnel is ensured.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a method and device for automatic control of vehicle running. Background technique [0002] At present, more and more attention is being paid to the vehicle adaptive cruise system. In the vehicle adaptive cruise system, the user sets the desired vehicle speed, and the system uses low-power radar or infrared beams to obtain the exact position of the vehicle in front. When the vehicle decelerates or detects a new target, the system will send an execution signal to the engine or braking system to reduce the speed of the vehicle to maintain a safe driving distance between the vehicle and the vehicle in front. When there is no car on the road ahead, it will accelerate back to the set speed, and the radar system will automatically monitor the next target. The vehicle's adaptive cruise control system replaces the user's control of the vehicle speed, avoiding frequent cancellati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/18B60W30/14B60W30/09B60W40/04B60W40/06
CPCB60W10/18B60W30/09B60W30/146B60W40/04B60W40/06B60W2050/0014B60W2050/0043B60W2050/0075B60W2552/00B60W2554/80B60W2555/60B60W2710/18
Inventor 黄忠伟姜波
Owner BYD CO LTD
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