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Method for Determining Vehicle Braking Deceleration Based on Steady State Evaluation of Blowout Vehicle

A technology of braking deceleration and steady state, applied in the direction of brakes, etc., can solve the problems of many signals, difficult to realize, and easy to generate errors.

Active Publication Date: 2017-02-15
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the patent can realize the dynamic stability control of the tire burst vehicle, but the calculation signal of the patent is relatively large, it is difficult to realize and error is easy to occur, so the patent has certain limitations

Method used

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  • Method for Determining Vehicle Braking Deceleration Based on Steady State Evaluation of Blowout Vehicle
  • Method for Determining Vehicle Braking Deceleration Based on Steady State Evaluation of Blowout Vehicle
  • Method for Determining Vehicle Braking Deceleration Based on Steady State Evaluation of Blowout Vehicle

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Embodiment Construction

[0030] The following are specific embodiments of the present invention and combined with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0031] like figure 1 As shown in the figure, the method for determining the braking deceleration of the vehicle based on the steady state evaluation of the punctured vehicle, the main steps are as follows:

[0032] A. Realize the steady state evaluation of tire puncture vehicle through two-dimensional fuzzy controller: take the actual value of vehicle yaw rate deviation E and the yaw rate deviation change rate EC as input variables, and take tire puncture vehicle state evaluation S as output variable; The 2D fuzzy controller fuzzifies a pair of input variables, and then performs fuzzy inference and defuzzification to output the current stable state evaluation value of the flat tire.

[0033] B. Determine the graded braking deceler...

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Abstract

The invention provides a vehicle braking deceleration determining method based on tire-burst vehicle stability state estimation, belongs to the technical field of vehicle tire burst, and soles the problems that signals of tire-burst vehicle power stability control calculation are more, implementation is difficulty, and errors are easy to occur. The method mainly includes A, completing tire-burst vehicle stability state estimation through a first two-dimensional fuzzy controller; B, determining tire-burst vehicle graded braking deceleration through a second two-dimensional fuzzy controller. By the aid of the method, the current stability of a tire-burst vehicle can be estimated simply and accurately, and corresponding braking deceleration can be determined according to the current stability.

Description

technical field [0001] The invention belongs to the technical field of automobile tire puncture, and relates to a method for determining vehicle braking deceleration based on the steady state evaluation of a punctured vehicle. Background technique [0002] With more and more cars on the road, traffic accidents are increasing year by year. There are many reasons for traffic accidents. Among them, the consequences of traffic accidents caused by puncture are very serious, which seriously threatens people's life and property safety. Data show that the number of deaths caused by puncture accounts for About half of the fatalities in highway accidents, therefore, puncture is recognized as the number one killer of driving safety at high speed. [0003] The rolling radius, vertical stiffness, longitudinal stiffness, lateral stiffness and other characteristics of the tire change greatly after the tire is punctured, resulting in changes in the vertical load, rolling resistance moment,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/1755
Inventor 魏顺成朱小镇陈钰键朱建胜李博孟香刘巍潘之杰吴成明冯擎峰
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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