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Novel vehicle following system and method

A car-following and car-following technology, applied in the field of car-following, can solve the problems of high sensor price and cost, and delay

Active Publication Date: 2018-09-21
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This sensor-based car-following technology has certain disadvantages. First, this technology can only guarantee longitudinal car-following, and there is a delay. Second, the price of the sensor is relatively high.

Method used

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  • Novel vehicle following system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A new vehicle following system, such as figure 1 As shown, the vehicle following system includes a first vehicle 1 and a second vehicle 2, the first vehicle 1 includes a first controller 11, a first positioning device 12 and a first vehicle-vehicle V2V vehicle communication device 13, the second vehicle 2 including a second controller 21, a second positioning device 22 and a second V2V vehicle communication device 23;

[0046] The first positioning device 12 is used for positioning the first vehicle 1; the second positioning device 22 is used for positioning the second vehicle 2;

[0047] The first controller 11 is configured to share the basic information of the first vehicle 1 with the second V2V vehicle communication device 23 through the first V2V vehicle communication device 13;

[0048] The second controller 21 is configured to perform automatic driving control on the second vehicle 2 according to the positioning information of the second vehicle 2 and the basic in...

Embodiment 2

[0084] A new type of vehicle following method. It should be noted that any of the above-mentioned system embodiments can be applied to this method embodiment, and will not be described here one by one. image 3 As shown, the method may include S201-S203:

[0085] S201. Positioning the first vehicle and the second vehicle respectively;

[0086] S202. Share the basic information of the first vehicle with the second vehicle;

[0087] S203. Perform automatic driving control on the second vehicle according to the positioning information of the second vehicle and the basic information shared by the second vehicle, so that the second vehicle automatically follows the first vehicle.

[0088] Optionally, the basic information includes: driving trajectory, driving speed and acceleration; wherein, the driving trajectory includes: a plurality of continuous trajectory coordinates marked according to the positioning information of the first vehicle and preset time intervals; each trajector...

Embodiment 3

[0103] A new type of car-following method, which is applicable to the second vehicle side. It should be noted that any of the above-mentioned system embodiments can be applied to this method embodiment, and will not be described here one by one. Figure 4 As shown, the method may include S301-S302:

[0104] S301. Positioning the second vehicle;

[0105] S302. According to the positioning information of the second vehicle and the basic information shared by the second vehicle, perform automatic driving control on the second vehicle, so that the second vehicle automatically follows the first vehicle; wherein, the basic information is the first vehicle's information.

[0106] Optionally, the basic information includes: driving trajectory, driving speed and acceleration; wherein, the driving trajectory includes: a plurality of continuous trajectory coordinates marked according to the positioning information of the first vehicle and preset time intervals; each trajectory coordinat...

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Abstract

The embodiment of the invention discloses a novel vehicle following system and method. The system includes a first vehicle and a second vehicle, the first vehicle includes a first controller, a firstpositioning device and a first V2V vehicle-mounted communication device, and the second vehicle includes a second controller, a second positioning device and a second V2V vehicle-mounted communicationdevice; the first positioning device conducts positioning on the first vehicle; the second positioning device conducts positioning on the second vehicle; the first controller shares basic informationof the first vehicle to the second V2V vehicle-mounted communication device through the first V2V vehicle-mounted communication device; the second controller performs automatic driving control on thesecond vehicle according to the positioning information of the second vehicle and the shared basic information, so that the second vehicle automatically follows the first vehicle to run. By adoptingthe system, vehicles can simultaneously achieve automatic driving control in the transverse and longitudinal directions, and low cost, low delay and reliability of the entire vehicle following systemare ensured.

Description

technical field [0001] The embodiments of the present invention relate to car-following technology, especially a novel vehicle-following system and method. Background technique [0002] At present, control schemes based on high-precision maps and multi-sensor fusion are the two mainstream unmanned driving technology schemes. However, both of these solutions cost a lot of money, making the cost of a single vehicle very high, so such systems can only be used for research in the laboratory. In addition, the current car-following technology is mainly automatic adaptive cruise (ACC), which uses the data sensed by vehicle sensors, such as the distance from the vehicle in front, to adjust the driving strategy of the vehicle, such as speed. This sensor-based car-following technology has certain disadvantages. First, this technology can only guarantee longitudinal car-following, and there is a delay. Second, the price and cost of the sensor are relatively high. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/165
CPCB60W30/165
Inventor 张毅丁季时雨封硕许惠乐裴华鑫
Owner TSINGHUA UNIV