Speed control system and method for driverless vehicle passing through intersections

Abstract

The invention provides a speed control system and method for a driverless vehicle passing through intersections. The speed control system comprises three sub-systems, that is, an automobile AVCS, a road information acquisition system and an intersection area control center system. The control and data transmission among the three sub-systems are connected and processed by a wireless computer. Thespeed control system and method realize the information interaction between the driverless vehicle and a vehicle and between the vehicle and a road, the factors of road surface texture, a vehicle running state, a road surface weather environment and a road intersection shape are considered, and the running speed of the driverless vehicle passing through the intersections on a dry road surface is measured and controlled, and at the same time, the driving behavior between vehicles in the intersection areas with large traffic flow is early warned. The speed control system can rapidly process thesafe driving behavior of urban road intersections, and can make real-time decision on the driving strategy of the intersections according to the changing state of road alignment to ensure the safety of vehicles in the process of passing through the road intersections.

Description

technical field [0001] The invention belongs to the field of unmanned driving technology and intelligent transportation engineering, and in particular relates to a speed control system and method when an unmanned vehicle passes through an intersection. Background technique [0002] Unmanned vehicles and their sensing technology for the road environment are currently a hot topic in the field of transportation research. Realize the automatic control of the driving behavior of the vehicle, avoid the potential risk of traffic accidents caused by subjective factors during manual driving, so as to realize the safe driving of the car and promote the efficient and safe development of the transportation industry. At this stage, the research on driverless environment perception mainly stays in the field of vehicle automatic control and simulation control system, while there is little research on the field of road environment information perception. At the intersection of urban arteri...

AI Technical Summary

Problems solved by technology

At the same time, at road intersections controlled by no signal lights, timely control of vehicle speed is an important means to prevent vehicles from slipping when turning or going straight, and the adhesion coefficient between the tire and the road surface changes nonlinearly with the speed of the vehicle, which cannot be artificially guaranteed. Vehicle Safety

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