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Vehicle-road cooperative auxiliary driving system and method

A vehicle-road coordination and assisted driving technology, which is applied to the traffic control system of road vehicles, traffic control systems, vehicle components, etc., to achieve the effects of reducing costs, improving accuracy, and improving traffic efficiency

Active Publication Date: 2022-04-26
SICHUAN DEPT OF TRANSPORTATION HIGHWAY PLANNING PROSPECTING & DESIGN RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the inability to implement high-precision control of road vehicles in the prior art, and provide a vehicle-road cooperative driving assistance system and method

Method used

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  • Vehicle-road cooperative auxiliary driving system and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as figure 1 As shown, a vehicle-road coordination assisted driving system includes several roadside vehicle-road coordination terminals and several vehicle-mounted vehicle-road coordination terminals arranged on smart roads. The smart road is dedicated to vehicles with automatic driving and vehicle-road coordination capabilities, and vehicles that do not have automatic driving and vehicle-road coordination capabilities are not allowed to enter and drive.

[0057] Each of the roadside vehicle-road coordination terminals is assigned a certain range of management roads, and a preset distance is set according to the range, and the roadside vehicle-road coordination terminals are uniformly arranged on one side of the intelligent road. There is an overlapping area in the management road range of each adjacent roadside vehicle-road coordination terminal, so that the entire smart road is in the management road range of the roadside vehicle-road coordination terminal, and t...

Embodiment 2

[0062] Such as figure 2 As shown, this embodiment is a vehicle-road cooperative assisted driving method based on the system described in Embodiment 1, and the specific steps are as follows:

[0063] S0: The on-board computing unit of the vehicle to be assisted acquires and stores the outer contour data of the vehicle to be assisted.

[0064] S1: After the vehicle to be assisted enters the control range of the roadside vehicle-road coordination terminal, automatically send the outline data of the vehicle to be assisted to the roadside vehicle-road coordination terminal, and the roadside vehicle-road coordination terminal will The auxiliary vehicles to be numbered and recorded in the management list;

[0065] When the auxiliary vehicle enters the vehicle-road coordination road, it establishes contact with the roadside vehicle-road coordination device through the vehicle-mounted communication terminal and the roadside communication terminal. The coordination device is marked a...

Embodiment 3

[0079] This embodiment is a specific calculation process of the driving speed adjustment value and the direction adjustment value described in Embodiment 2. Include the following steps:

[0080] S431: Determine the driving control reference vehicle of each lane in the current control cycle;

[0081] Obtain the vehicle to be assisted at the front position on lane i within the control range of the vehicle-road coordination device as the leading vehicle of lane i; and determine whether there are other vehicles within the distance of s(i) ahead of the leading vehicle Vehicle; Wherein, s (i) is the adjacent vehicle longitudinal spacing threshold of i lane;

[0082] If there are other vehicles in front of the first vehicle in the handover area, a vehicle to be assisted directly in front of the first vehicle is used as the driving control reference vehicle of lane i;

[0083] If not, then take the first vehicle as the driving control reference vehicle of lane i;

[0084] S432: Det...

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Abstract

The invention relates to the field of vehicle-road cooperation, in particular to a vehicle-road cooperation auxiliary driving system and method. According to the invention, the precise positioning technology and the high-precision map technology are comprehensively applied, the positioning data monitored by the vehicle-mounted positioning sensing assembly is taken as the reference, and the outer contour data of the vehicle and the precise high-precision map are superposed, so that the vehicle-road cooperation system can rapidly, accurately and comprehensively master the condition of the road space occupied by the vehicle, and the vehicle-road cooperation system can be used for the vehicle-road cooperation system. Therefore, high-precision auxiliary control of the vehicle-road cooperation system on road vehicle driving is achieved, and traffic safety and road passing efficiency are improved. According to the technical scheme of the invention, the roadside vehicle-road cooperation terminal does not need to be provided with vehicle detection and positioning equipment, and the to-be-assisted vehicle does not need to be provided with equipment such as a distance measuring sensor, so that the cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of vehicle-road coordination, in particular to a vehicle-road coordination auxiliary driving system and method. Background technique [0002] Vehicle-road coordination is the use of advanced wireless communication and new-generation Internet technologies to implement vehicle-vehicle and vehicle-road dynamic real-time information interaction in an all-round way, and to carry out vehicle active safety control and road coordination on the basis of full-time and spatial dynamic traffic information collection and fusion. Management, fully realize the effective coordination of people, vehicles and roads, ensure traffic safety, improve traffic efficiency, and form a safe, efficient and environmentally friendly road traffic system. Different from purely autonomous driving based on the vehicle itself, vehicle-road coordination requires the road to be able to interact with the vehicle. Highly intelligent roads using vehicle-ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/052G08G1/123B60W60/00
CPCG08G1/052G08G1/123B60W60/001B60W2556/45
Inventor 蒋贵川林莉吴宏伊冯光宇易雷汪正勇刘勇健刘刚孙琦刘裕贵李海燕
Owner SICHUAN DEPT OF TRANSPORTATION HIGHWAY PLANNING PROSPECTING & DESIGN RES INST
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