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Automatic vehicle driving method and electronic equipment

A technology of automatic driving and vehicles, applied in the field of vehicles

Active Publication Date: 2019-01-15
DONGFENG MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, it is necessary to provide a vehicle automatic driving method and electronic equipment for the technical problems existing in existing automatic driving.

Method used

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  • Automatic vehicle driving method and electronic equipment
  • Automatic vehicle driving method and electronic equipment
  • Automatic vehicle driving method and electronic equipment

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Experimental program
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Embodiment Construction

[0068] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0069] like figure 1 Shown is a working flow chart of a vehicle automatic driving method of the present invention, including:

[0070] Steps S101-S105 are executed at each preset decision-making time period:

[0071] Step S101, expand the position of each lane in the displacement direction in the preset decision-making road area of ​​the vehicle along time, obtain the position-time map of each lane, and divide all vehicles in each lane in the decision-making road area The motion process of is mapped on the displacement time map of the lane;

[0072] Step S102, according to the displacement time diagrams of multiple lanes, use the collection of all arrival positions that the vehicle can reach at the next time node at the time node to be calculated, starting from the position to be calculated, and reachable at the next time node as th...

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Abstract

The invention discloses an automatic vehicle driving method and electronic equipment. The method comprises the following steps executed at an interval of a preset decision-making time period: S101, developing the position of each lane in a preset decision-making road region of a present vehicle in a displacement direction along time to obtain a position time diagram of each lane; S102, determininga set of all arrival positions where the present vehicle starting from a position to be calculated at a time node to be calculated can arrive at a next time node as a search region according to the displacement time diagrams of a plurality of lanes; S103, calculating cost in arrival at each arrival position in the search region, and adding the arrival positions of which the corresponding cost meets a requirement to a selected set as selected positions; S104, if a termination condition is reached, executing S105, otherwise executing S102; and S105, controlling the present vehicle to arrive atthe corresponding selected positions at time nodes corresponding to the selected positions in the selected set. According to the method and the electronic equipment, a reasonable running operation iscalculated according to movement laws of the vehicle and other traffic participants in a dynamic environment and a rule.

Description

technical field [0001] The present invention relates to the technical field related to vehicles, in particular to a vehicle automatic driving method and electronic equipment. Background technique [0002] Autonomous driving technology can reduce the labor intensity and safety responsibilities of vehicle users related to driving. It is generally believed in the industry that vehicle autonomous driving technology is divided into four key parts: global path planning, environment perception and positioning, local motion planning, and motion execution. Among them, the local motion planning is responsible for determining the motion mode of the vehicle according to the vehicle itself and the environmental conditions. [0003] The motion of an autonomous vehicle includes two parts, lateral motion and longitudinal motion, which correspond to the state changes of the vehicle's driving direction and driving speed, respectively. [0004] In some technical solutions, the lateral moveme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02G01C21/34
CPCG05D1/0212G05D1/0221G05D1/0223G05D1/0229G05D1/0246G05D1/0255G05D1/0257G05D1/0278G01C21/34
Inventor 张昭刘杰
Owner DONGFENG MOTOR CO LTD