Method for monitoring tire burst or severe air leakage of vehicle

A puncture and violent technology, used in tire measurement, vehicle parts, tire parts, etc., can solve problems such as low accuracy, low cost, and easy false alarms

Inactive Publication Date: 2010-06-02
ZHEJIANG ASIA PACIFIC MECHANICAL & ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method only needs to be implemented by software, and the cost is low, but the accuracy is low and it is easy to false alarm

Method used

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  • Method for monitoring tire burst or severe air leakage of vehicle
  • Method for monitoring tire burst or severe air leakage of vehicle
  • Method for monitoring tire burst or severe air leakage of vehicle

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] The method for monitoring a vehicle tire blowout or severe air leakage utilizes the characteristics of a sharp decrease in the natural frequency of a tire blowout or severe air leakage and a sharp decrease in the effective radius of the tire, by analyzing the vibration characteristics of each wheel speed signal and Effective radius characteristic analysis, obtain the natural frequency characteristics and effective radius characteristics of each tire of the vehicle, and determine the threshold (criterion) of tire blowout or severe air leakage related characteristics on the basis of empirical formulas and experiments If the tire is within the range of the air criterion, then according to the current turning and braking conditions of the vehicle, the weighted judgment of the tire blowout or severe air leakage will be carried out to determine whether ...

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Abstract

The invention discloses a method for monitoring a tire burst or severe air leakage of a vehicle. The electronic control unit (ECU) of a tire burst or severe air leakage monitoring system comprises a wheel speed signal vibration performance analysis module and an effective radius performance analysis module, wherein the wheel speed signal vibration performance analysis module monitors and calculates a natural frequency threshold and a natural frequency of a tire in real time; the effective radius performance analysis module calculates a variation rate and a threshold of a wheel speed, a specific value and a threshold of a wheel speed product between diagonal wheels; and the ECU combines the criterions to judge the tire burst or the severe air leakage. The monitoring method of the invention reasonably simplifies and combines in the criterion algorithm thereof, can timely and accurately monitor the tire burst or the severe air leakage in a mode of indirectly combining a plurality of criterions after the tire burst or the severe air leakage occurs, informs a driver of related information or drives a related tire burst braking control system at the same time, improves the safety performance of the accident tire burst or severe air leakage of the vehicle and is low in monitoring cost.

Description

technical field [0001] The invention relates to a vehicle tire blowout or severe air leakage monitoring method. Background technique [0002] A tire blowout or severe air leakage is an emergency failure caused by a sudden burst or severe air leakage due to the severe weakening of the mechanical strength of a certain part of the tire and the loss of balance in tire pressure. However, due to the driver's concentration, sound insulation and the noise of the vehicle itself, it is difficult to obtain the information of the vehicle's tire burst or severe air leakage in time, resulting in the loss of the best time for vehicle braking and stable control. Relevant studies have shown that the handling of the vehicle does not change much within 2-3 seconds after a tire blowout. This period of time is the best time for the vehicle with a blowout to reduce the speed. Reduce the speed of the vehicle to the safe speed range within the time. Therefore, the monitoring and judgment of tire ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/06
Inventor 陈庆樟施正堂郭立书鲍庆坤黄胜波
Owner ZHEJIANG ASIA PACIFIC MECHANICAL & ELECTRONICS
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