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Vehicle driving automatic control method and device

A vehicle driving and vehicle technology, applied in the direction of control devices, vehicle components, transportation and packaging, etc., can solve the problem of poor recognition of lane lines, wrong braking or braking delay, and possible recognition of target vehicles that are not in the lane For problems such as in this lane

Active Publication Date: 2020-02-21
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, for the situation where multiple target vehicles are driving in the tunnel, ranging sensors such as millimeter-wave radar cannot identify lane lines well
Therefore, the subject vehicle equipped with only millimeter-wave radar 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 adaptive cruise system of the subject vehicle to perform Incorrect braking or braking delay, low driving safety of the subject vehicle

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 millimeter-wave radar is mounted on the front, side, or rear of the vehicle to complete different functions such as forward-looking collision avoidance, side-view collision avoidance, and rear-view collisio...

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Abstract

The invention discloses a vehicle driving automatic control method and device, wherein the method includes: according to the first image and the second image of the environment in front of the subject vehicle acquired from the front 3D camera, identifying the front target vehicle and the rear target vehicle; acquiring the tunnel information and speed limit information; change the setting of the cruising speed limit and cruising safety distance of the subject vehicle according to the tunnel information and speed limit information; adjust the focal length of the front 3D camera according to the tunnel information, according to the motion parameters of the target vehicle in front, and the target vehicle behind Cruise control in the tunnel is performed on the motion parameters of the subject vehicle. As a result, the driving safety of vehicles in the tunnel is improved.

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): B60W30/14G06K9/00
CPCB60W30/14B60W2420/42B60W2420/52B60W2554/80B60W2555/60G06V20/582G06V20/584G06V20/588
Inventor 黄忠伟姜波
Owner BYD CO LTD
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