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Method for estimating and calculating curve risk based on vehicle-vehicle communication

A calculation method and vehicle-to-vehicle communication technology, which is applied in the traffic control system of road vehicles, vehicle components, traffic control systems, etc., can solve the problems of difficult quantification of subjective dangers, and achieve low environmental interference, complete and efficient transmission, and dry road surface Effect

Inactive Publication Date: 2018-12-07
BEIHANG UNIV
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Problems solved by technology

Therefore, in the process of driving behavior analysis, both objective risk and subjective risk need to be considered. Compared with objective risk, subjective risk is more difficult to quantify

Method used

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  • Method for estimating and calculating curve risk based on vehicle-vehicle communication
  • Method for estimating and calculating curve risk based on vehicle-vehicle communication
  • Method for estimating and calculating curve risk based on vehicle-vehicle communication

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0038] The present invention is based on the vehicle-to-vehicle communication, selects the risk quantification index, designs the risk state estimation and calculation method, judges the risk state of the vehicle in the curve process, and provides real-time risk judgment for the vehicle driving under the curve condition. Specific steps are as follows:

[0039] (1) Determine the quantitative index set of car-following risk:

[0040] RQI=(TH n (t),1 / TTC n (t),SM(t))

[0041] In the formula, RQI refers to the risk quantification indicator (Risk quantification indicator).

[0042] (2) Citing the calculation formulas of risk degree ξ(τ,t) and safety margin SM(t):

[0043]

[0044] In order to ensure safety, it is necessary to ensure that ξ(τ,t)≤1.0, so there are:

[0045]

[0046] So, the safety margin is:

[0047] SM(t)=1.0-ξ(τ 2 ,t)...

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Abstract

Disclosed is a method for estimating and calculating the curve risk based on vehicle-vehicle communication. A vehicle travelling under the curve working condition obtains real-time vehicle driving risk state judgment. According to the technical scheme, under the vehicle-vehicle communication environment, vehicle state information and environmental information of the vehicle in the curve vehicle-following process are sensed and obtained, risk perception quantification of a driver is analyzed, and the method for estimating and calculating the curve risk is put forward. According to the method for estimating and calculating the curve risk, the vehicle can learn the risk state in the environment where the vehicle is located in advance, the vehicle is operated in advance according to the driving habit of the driver, the safety and comfort of the vehicle passing through the curve are guaranteed, and technical support is provided for safety control methods in the fields of self-adaption cruise control, autonomous driving and the like of the vehicle.

Description

technical field [0001] The present invention relates to a method used in the technical field of vehicle control and traffic safety. Specifically, in the environment of vehicle-vehicle communication, the vehicle status information and environmental information are sensed and acquired during the process of following the vehicle on a curve, and the driver's behavior is analyzed. Hazard perception quantification, a curve risk estimation calculation method is proposed to provide real-time risk judgment for vehicles driving under curve conditions. This method can be widely used in adaptive cruise control, automatic driving and other fields. Background technique [0002] With the rapid development of highway traffic in our country, the problem of road traffic safety is becoming more and more serious, and people pay more and more attention to safety research. The occurrence of traffic accidents is inseparable from the road and traffic conditions. Compared with the straight road sect...

Claims

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Application Information

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IPC IPC(8): B60W50/00B60W50/14G08G1/01
CPCB60W50/0097B60W50/14B60W2555/20G08G1/0104G08G1/0133G08G1/0137
Inventor 鲁光泉刘倩王云鹏陈鹏丁川
Owner BEIHANG UNIV
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