Method and device for vehicle speed guidance at intersection

A technology of intersection and speed guidance, which is used in the control of traffic signals, traffic flow detection, traffic control systems, etc., can solve problems such as inability to provide speed guidance, and achieve the effect of improving driving safety and reliable speed guidance.

Active Publication Date: 2022-04-01
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, speed guidance is not possible without traffic lights

Method used

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  • Method and device for vehicle speed guidance at intersection
  • Method and device for vehicle speed guidance at intersection
  • Method and device for vehicle speed guidance at intersection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0069] In one embodiment, if ① the included angle of the driving direction, ② the current vehicle distance, and ③ the variation trend of the vehicle distance all meet the corresponding sub-recommendation conditions, it means that the first vehicle speed recommendation condition is satisfied; otherwise, the first vehicle speed recommendation condition is not satisfied. Of course, in the specific implementation process, it is also possible to only judge whether the above-mentioned ① driving direction angle and ③ vehicle distance change trend meet the corresponding sub-recommendation conditions, without paying attention to the current vehicle distance; Satisfying the corresponding sub-recommendation condition indicates that the first vehicle speed recommendation condition is satisfied; otherwise, the first vehicle speed recommendation condition is not satisfied.

[0070] Next, if the first vehicle speed recommendation condition is not met, then the subsequent steps are not perform...

specific Embodiment approach

[0072] In a specific embodiment, based on the position information of the main vehicle and the position information of the target remote vehicle, the first straight-line distance between the main vehicle and the target remote vehicle is determined; using the first straight-line distance and the direction angle information of the main vehicle, Predict the second straight-line distance between the main vehicle and the driving intersection, and predict the first time based on the second straight-line distance and the speed information of the main vehicle; use the first straight-line distance and the direction angle information of the target distant vehicle to predict The third straight-line distance between the target distant vehicle and the driving intersection, and the second time is predicted based on the third straight-line distance and the vehicle speed information of the target distant vehicle.

[0073] Specifically, the first time from the host vehicle to the driving inters...

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Abstract

The invention discloses a vehicle speed guidance method and device at an intersection, which are applied in the field of vehicle operation control. The method includes: obtaining basic safety information of a main vehicle and a target remote vehicle; , to determine whether the first vehicle speed recommendation condition is satisfied; if yes, then determine the first time when the host vehicle arrives at the driving intersection and the first time when the target remote vehicle arrives at the driving intersection according to the basic safety information of the host vehicle and the target remote vehicle Second time: according to the first time and the second time, a single recommended speed for the main vehicle is determined. Through the present invention, more accurate and reliable vehicle speed guidance can be realized at intersections without traffic lights.

Description

technical field [0001] The invention belongs to the field of vehicle operation control, and in particular relates to a vehicle speed guidance method and device at an intersection. Background technique [0002] V2X technology mainly involves V2I and V2V technologies. V2I means that the on-board equipment OBU communicates with roadside infrastructure (such as traffic lights, traffic cameras, roadside units, etc.), and the roadside infrastructure can also obtain information about vehicles in the nearby area and release various real-time information. V2V refers to the communication between vehicles through vehicle-mounted terminals. Vehicle-mounted terminals can provide real-time information on the speed, location, and driving conditions of surrounding vehicles. Vehicles can also form an interactive platform to exchange text, pictures, and videos in real time. In the prior art, when the vehicle approaches the traffic light intersection, it receives the light phase and time info...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/08G08G1/09
CPCG08G1/0104G08G1/0137G08G1/09G08G1/08
Inventor 刘鹏徐欣奕赵奕铭夏彪张宇探
Owner DONGFENG MOTOR CORP HUBEI
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