Vehicle speed control method and system

Abstract

The embodiment of the invention discloses a vehicle speed control method and a vehicle speed control system and belongs to the field of automobile control. The method comprises the following steps that: the distance from the current position of a vehicle to a traffic light expected to pass is obtained; the traffic light information of the traffic light expected to pass is obtained; and the current vehicle speed is controlled according to the distance and the traffic light information so that the traffic light is green when the vehicle reaches the traffic light expected to pass. The system comprises a distance obtaining module, a traffic light information obtaining module and a vehicle speed feedback module. The embodiment of the invention has the advantages that through the comprehensive processing on the traffic light information, the absolute position of the traffic light and the vehicle and parameters of the vehicle per se, the vehicle is automatically controlled, the vehicle speed regulation is realized, the condition of crowding at traffic light crossings is avoided to a certain degree, and the traffic condition is optimized.

Description

technical field [0001] The invention relates to the field of vehicle control, in particular to a method and system for vehicle speed control. Background technique: [0002] In recent years, more and more intersections have added traffic light devices. While enhancing the road traffic safety of non-motor vehicles and citizens, the interval between existing traffic lights is very long, and drivers often have to queue for a long time at an intersection. Waiting for a long time is not only a waste of time, but also causes a certain degree of road congestion. Even if the interval is short, dense traffic lights in a certain area make the vehicle decelerate too frequently, and the stopping and accelerating processes also reduce time efficiency and user experience. [0003] Existing situation driver is in the process of traveling to crossing traffic lights, is mechanized to slow down and stop when seeing red light at crossing mostly in the scope of eyesight, and passes through at n...

AI Technical Summary

Problems solved by technology

[0005] In the speed control of traffic lights at intersections, due to sight distance, weather, reaction and other reasons, drivers may make misjudgments or react slowly on traffic lights, for example, they fail to stop in time when green turns red, or it is difficult to see traffic lights in rainy and snowy weather, etc. Happening

As far as long-distance judgment is concerned, there will be errors in judgment due to various errors caused by road conditions, experience, and traffic conditions at that time.

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