Vehicle safety system parameter optimization method based on micro-traffic simulation model

A technology of traffic simulation and system parameters, which is applied in the field of automotive safety system parameter optimization, can solve problems such as limited quantity, inability to adapt to the rapid application requirements of intelligent technology, and difficulty in obtaining accident data, so as to achieve the effect of convenient application

Active Publication Date: 2016-12-21
TSINGHUA UNIV
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Problems solved by technology

However, because the accident data is difficult to obtain and the quantity is limited, the optimization method based on the re-simulation of the accident reproduction data in the past can no longer meet the rapid application requirements of intelligent technology.

Method used

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  • Vehicle safety system parameter optimization method based on micro-traffic simulation model
  • Vehicle safety system parameter optimization method based on micro-traffic simulation model
  • Vehicle safety system parameter optimization method based on micro-traffic simulation model

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Embodiment Construction

[0031] Adopt the automobile safety system parameter optimization method based on the micro-traffic simulation model of the present invention, generally comprise the following steps:

[0032] 1. Establish a micro-traffic model composed of multiple vehicles;

[0033] 2. Change the parameters of different control systems of the same vehicle, and find the relationship between the set parameters and the risk of occupant injury through long-term random simulation;

[0034] 3. Establish an optimization function, use modern optimization methods to solve the function, and obtain the optimal control system parameters.

[0035] In the above step 1, the establishment method of the micro-traffic model composed of multiple vehicles is as follows:

[0036] When building a model, the number of vehicles does not need to be specifically determined, it is determined by the scenario considered by the designer. For example, if the designer only cares about not colliding with the car in front, th...

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Abstract

The present invention discloses a vehicle safety system parameter optimization method based on a micro-traffic simulation model, applicable to reasonably selecting a control system parameter by an automobile manufacturer, to obtain an optimal effect. According to the method, a micro-traffic model consisting of multiple vehicles is established, a relationship between a set parameter and an occupant injury risk is found by changing parameters of different control systems by means of long-time random simulation, an optimization function is established, and then the function is solved by using a modern optimization method, to obtain an optimal control system parameter. According to the present invention, only natural driving data is required, and a great deal of accident data is unnecessary, so that the method is convenient in application.

Description

technical field [0001] The invention relates to a method for optimizing parameters of an automobile safety system based on a micro-traffic simulation model, in particular to a method for optimizing safety parameters of an emergency collision avoidance system for an automobile. Background technique [0002] With the development of electronic control technology, modern vehicles are becoming increasingly intelligent. The intelligentization of automobiles requires a long process, which results in the mixed driving of intelligent vehicles and non-intelligent vehicles in traffic. In order to adapt to this complex situation, vehicle manufacturers need to optimize the design of vehicle safety systems to obtain the minimum probability of accidents or the probability of occupant injury risk. However, because the accident data is difficult to obtain and the quantity is limited, the optimization method based on the re-simulation of the accident reproduction data in the past has not bee...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20G06F2111/06
Inventor 罗禹贡陈龙李克强边明远张书玮秦兆博解来卿罗剑张东好连小珉王建强杨殿阁郑四发
Owner TSINGHUA UNIV
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