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TPMS (Tire Pressure Monitoring System) technical defect improving scheme

A defect and solution technology, applied in the field of tire pressure monitoring system technical defect improvement plan, to achieve the effect of eliminating major technical defects

Inactive Publication Date: 2014-06-04
傅黎明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The more serious problem is that TPMS not only cannot perceive and judge the severe lack of air (hidden lack of air) caused by the change of tire load, but also provides false information that the tire pressure is normal when the tire pressure is severely lack of air, misleading the driver However, it has become a major accident hazard for driving safety, which completely deviates from the original intention of TPMS technology research and development and technical efficacy demands. Therefore, TPMS technical defects are major technical defects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Embodiment 1 of the present invention is an embodiment of the pre-installation working conditions of a passenger car factory. In the specific model design stage, the dynamic tire pressure benchmark data of different axle positions and different wheel positions can be obtained through the tire manual and the actual measurement calibration method. Still taking the Audi A6 2.8 passenger car as an example, the front wheels are nominally inflated with no load The pressure of 2.3 bar and the full load of 2.8 bar are the two characteristic points of the tire dynamic tire pressure benchmark of this model. If the unloaded mass of the model is 1500Kg and the full load mass is 1800Kg, 1500Kg corresponds to 2.3 bar and 1800Kg corresponds to 2.8 bar That is, the dynamic tire pressure reference lower endpoint array and upper endpoint array of the front axle wheel position of the model, and then according to the tire manual and actual measurement calibration, you can obtain several arr...

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Abstract

The invention discloses a TPMS (Tire Pressure Monitoring System) technical defect improving scheme. With a dynamic tyre pressure datum as a TPMS tyre pressure criterion, namely, when a wheel load is changed, a TPMS data processing center uses tyre inflation pressure data corresponding to a real-time load as a real-time dynamic tyre pressure datum to replace a static tyre pressure datum of tyre inflation pressure (no-load cold-state inflation pressure) data corresponding to a static load in the prior art of TPMS, and then real-time tyre pressure data transmitted by a TPMS tyre pressure monitoring module and the real-time load dynamic tyre pressure datum are analyzed and compared, and thus a judgment whether the tyre pressure is abnormal or not and a prompt of real-time tyre pressure prewarning information are made.

Description

technical field [0001] The invention relates to the technical field of automobile driving safety, in particular to a technical defect improvement scheme of a tire pressure monitoring system (TPMS). Background technique [0002] The tire inflation pressure and load characteristics show that the tire inflation pressure changes with the load. According to the actual working conditions of the car, the tire cold inflation pressure is divided into the inflation pressure of the no-load condition and the inflation pressure of the full-load condition. Taking the Audi A62.8 times Taking a car as an example, the working air pressure of the front wheels is 2.3 bar at no load, and the working air pressure at full load is 2.8 bar. The full load inflation pressure ratio is 100:134.8. [0003] The load in the actual working conditions of the car changes frequently. Taking a passenger car as an example, the increase or decrease of the car occupants (changing between 1-5 people) and the load...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/02
CPCB60C23/0474B60C23/02B60C23/061B60C23/0401B60C23/04B60C23/0488
Inventor 傅黎明
Owner 傅黎明