Vehicle speed control method and system

A vehicle speed control and vehicle speed technology, applied in the field of vehicle control, can solve problems such as failure to stop in time, personal judgment error, driver's misjudgment response, etc., to optimize traffic conditions, improve automatic control level and intelligence level, and avoid intersection congestion Effect

Active Publication Date: 2012-08-29
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Vehicle speed control method and system
  • Vehicle speed control method and system

Examples

Experimental program
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Effect test

Embodiment 1

[0057] see figure 1 , the present embodiment provides a vehicle speed control method related to vehicle control, the method is as follows:

[0058] Step 101: Obtain the distance between the current position of the vehicle and the desired traffic light;

[0059] Step 102: Obtain the traffic light information that you want to pass;

[0060] Step 103: Control the current vehicle speed according to the distance and traffic light information, so that the traffic light is green when the vehicle reaches the desired traffic light.

[0061] The technology provided by the present invention has beneficial effects: obtain the distance between the current position of the vehicle and the desired traffic light; obtain the information of the desired traffic light; control the current vehicle speed according to the distance and traffic light information, so that the traffic light is green when the vehicle reaches the desired traffic light. Through the comprehensive processing of traffic ligh...

Embodiment 2

[0063] see figure 2 , the present embodiment provides a vehicle speed control method related to vehicle control, the method is as follows:

[0064] Step 201: Obtain the distance between the vehicle's current location and the traffic light it wishes to pass;

[0065] Specifically, GPS obtains the location information of the vehicle to the traffic lights that the vehicle wants to pass in real time, that is, the location coordinates of the traffic lights and the current vehicle location information, that is, the vehicle location coordinates at the current time point, so as to obtain the distance S between the two ;

[0066] Among them, GPS is the global positioning system. Using this system, users can realize all-weather, continuous, real-time three-dimensional navigation positioning and speed measurement around the world; in addition, using this system, users can also perform high-precision time transmission and high-precision Precision positioning. In real life, GPS positio...

Embodiment 3

[0099] see image 3 , the present embodiment provides a vehicle speed control method related to vehicle control, the method is as follows:

[0100] The steps of front 301, 302, 303 are the same as 201, 202, 203 of embodiment 2;

[0101] Step 304: Obtain the speed range Va-Vb required for the vehicle to reach the last green light according to the distance and the start time and end time of the last green light of the traffic light, and compare whether the current speed is in the speed range;

[0102] The vehicle's own status information is read through the vehicle-related software and other display devices, the current speed V is obtained, and the current distance S is read. According to the current distance and according to the time interval Tb-Ta between the start time of the latest green light and the current time and the time interval Tb-Ta between the end time and the current time, the required speed range Va-Ta required to reach the next green light at the current speed ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60W40/04B60W40/105
Inventor 王友振寇小丰汤新宁
Owner CHERY AUTOMOBILE CO LTD
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