A method for determining the width of a straight line segment of a dedicated lane for autonomous vehicles

A technology of automatic driving and special lanes, applied in the traffic control system of road vehicles, roads, roads, etc., can solve problems such as inadaptability, and achieve the effect of simplifying complex combinations

Active Publication Date: 2022-07-01
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

As autonomous vehicles are mixed into the traffic flow of human driving vehicles (HDV), especially autonomous vehicles can be divided into single-vehicle intelligent autonomous vehicles (Autonomous Vehicle, AV) and intelligent network-linked autonomous vehicles (Connected Autonomous Vehicles). ,CAV), the existing capacity algorithm has shown its inadaptability

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  • A method for determining the width of a straight line segment of a dedicated lane for autonomous vehicles
  • A method for determining the width of a straight line segment of a dedicated lane for autonomous vehicles
  • A method for determining the width of a straight line segment of a dedicated lane for autonomous vehicles

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Embodiment Construction

[0055] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0056] like Figure 1-3 As shown, the method for determining the width of a straight line segment of a dedicated lane for an automatic driving vehicle of the present invention includes the following steps:

[0057] S1. Install the vehicle-mounted ranging device 1 in the center of the front of the vehicle, and calibrate the measurement accuracy of the device, as follows:

[0058] S101. Install the equipment in the center of the front of the car, which can be confirmed with a steel ruler with millimeter-level precision, so that the installation error of the equipment should be less than 0.5cm;

[0059]S102, calibrate the measurement accuracy of the equipment, and automatically calculate that the error of the distance x from the equ...

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Abstract

The invention relates to a method for determining the width of a straight line section of a dedicated lane for an automatic driving vehicle, comprising the steps of: S1, installing a vehicle-mounted ranging device in the center of the front of the vehicle, and calibrating the measurement accuracy of the device; S2, driving the automatic driving vehicle in the lane , measure the lateral swing amplitude of the vehicle; S3. Use statistical methods to obtain the functional relationship between the lateral swing amplitude of the autonomous vehicle in the lane and the influencing factors; S4. The probability that the vehicle edge line is enveloped by the lane line is the lateral motion of the vehicle Reliability, inversely obtain lane widths with different lateral motion reliability; S5, check the free flow speed and traffic capacity of autonomous vehicles with different widths; S6, determine the width of the straight section of the expressway dedicated lane for autonomous vehicles. The invention takes into account seven influencing factors of the automatic driving vehicle laterally swinging in the lane, and can more scientifically determine the width of the straight line section of the special lane for the expressway automatic driving vehicle.

Description

technical field [0001] The invention relates to the technical field of traffic design, in particular to a method for determining the width of a straight line segment of a dedicated lane for an automatic driving vehicle. Background technique [0002] Traffic capacity is one of the core concepts of traffic engineering and the theoretical cornerstone of traffic planning, traffic design, and traffic management and control. With the mixing of autonomous vehicles into human driving vehicle (HDV) traffic flow, especially autonomous vehicles can be divided into single-vehicle intelligent autonomous vehicles (Autonomous Vehicle, AV) and intelligent networked autonomous vehicles (Connected Autonomous Vehicles) , CAV), existing capacity algorithms have shown their incompatibility. Since highways are free-flowing and the traffic environment is relatively simple compared to urban roads, the current promotion of autonomous vehicles often starts from highways. Therefore, it is of great t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/34G08G1/01G01B21/02
CPCE01C1/002G01B21/02G08G1/0125
Inventor 江泽浩刘聪健陈珂骆汉宾丁烈云
Owner HUAZHONG UNIV OF SCI & TECH
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