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Intersection vehicle speed guiding method and device

A technology for vehicle speed guidance and intersections, applied in traffic control systems, traffic flow detection, traffic signal control, etc., can solve problems such as inability to guide vehicle speed, and achieve the effect of improving driving safety and reliable vehicle speed guidance

Active Publication Date: 2021-03-16
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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  • Intersection vehicle speed guiding method and device
  • Intersection vehicle speed guiding method and device
  • Intersection vehicle speed guiding method and device

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 an intersection vehicle speed guiding method and device, and is applied to the field of vehicle operation control, and the method comprises the steps: obtaining the basic safety information of a main vehicle and a target far vehicle; judging whether a first vehicle speed recommendation condition is met or not according to the basic safety messages of the main vehicle and the target far vehicle; if yes, according to the basic safety information of the main vehicle and the target far vehicle, determining the first time when the main vehicle arrives at the driving intersection point and the second time when the target far vehicle arrives at the driving intersection point; and determining a single recommended vehicle speed for the main vehicle according to the first time and the second time. According to the invention, more accurate and reliable vehicle speed guidance at the intersection without traffic lights is realized.

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 Applications(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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