An integrated measurement system and method for vehicle stability and tire surface force

A measurement system and stability technology, used in force/torque/work measuring instruments, measuring devices, and measuring forces applied to control elements, etc., can solve problems such as inapplicability of evaluation methods, and achieve high theoretical value.

Active Publication Date: 2020-03-27
BEIJING INFORMATION SCI & TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, for the special field of vehicle stability and tire surface force analysis and performance evaluation, traditional evaluation methods are no longer applicable

Method used

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  • An integrated measurement system and method for vehicle stability and tire surface force
  • An integrated measurement system and method for vehicle stability and tire surface force
  • An integrated measurement system and method for vehicle stability and tire surface force

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Embodiment Construction

[0050] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0051] At present, through indoor static and dynamic tests, the magnitude and change characteristics of tire force based on the point contact model can be measured and verified, and the dynamic characteristics of the tire can be comprehensively analyzed through fitting. Its main function is to analyze the stability of the vehicle, but the vehicle is The change of dynamic characteristics of the tire during operation cannot be accurately measured through indoor tests; the tire surface internal stress test equipment (Tirescan) can be used to analyze the three-way force in the tir...

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Abstract

The invention discloses a vehicle stability and tread internal acting force integrated measuring system and method. The system comprises a positioning system, a vehicle stability measuring system, a tire dynamic strain measuring system and a data collecting and processing system; the positioning system is used for recording driving position information, movement time and time base information of vehicles in real time; the vehicle stability measuring system is used for measuring vehicle mass center stability parameters, steering wheel steering angle parameters and brake pedal force parameters in real time; the tire dynamic strain measuring system is used for measuring the tie rotation speed and acceleration and hub and tread strain information in real time; the data collecting and processing system is used for collecting data recorded by the positioning system, the vehicle stability measuring system and the tire dynamic strain measuring system for processing and storing. Accordingly, the stability parameters and tread internal acting force time-variant characteristics under unsteady input of the vehicles can be rapidly, accurately and synchronously detected.

Description

technical field [0001] The invention relates to the field of vehicle testing, in particular to an integrated measurement system and method for vehicle stability and tire surface internal force. Background technique [0002] The tire traces at the accident scene reflect the trajectory, driving speed, tire status and braking measures of the vehicle before and after the accident. By analyzing the tire traces, the instantaneous speed, collision characteristics, contact parts and collision point positions of the vehicle before and after the collision can be determined. Therefore, surveying and analyzing on-site tire tracks has become the most common means of accident handling. However, the tire tracks at the scene of road traffic accidents often show certain obvious and hidden characteristics, such as figure 1 shown. This kind of tire marks with obvious and hidden characteristics is caused by the coupling of multiple factors such as load, contact stress and frictional heat when...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/04G01M1/12G01L3/00G01L5/22
CPCG01L1/04G01L3/00G01L5/225G01M1/122
Inventor 马彬陈勇龚国庆
Owner BEIJING INFORMATION SCI & TECH UNIV
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