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Indirect tire pressure monitoring calibration method based on speed interval interpolation

A speed range and tire pressure monitoring technology, applied in tire measurement, tire parts, transportation and packaging, etc., can solve the problem that the iTPMS system cannot provide the alarm function, and achieve the effect of ensuring accuracy

Active Publication Date: 2022-01-04
偌轮汽车科技(武汉)有限公司
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Problems solved by technology

This method can realize the interpolation judgment of TDA and FDA collected in real time across speed intervals, and solve the problem that the iTPMS system cannot provide due data in unlearned speed intervals when the iTPMS system of the vehicle cannot complete the learning of all main speed intervals during the learning phase. The problem with the alarm function

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  • Indirect tire pressure monitoring calibration method based on speed interval interpolation
  • Indirect tire pressure monitoring calibration method based on speed interval interpolation
  • Indirect tire pressure monitoring calibration method based on speed interval interpolation

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Experimental program
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Embodiment

[0066] Such as figure 1 As shown, an indirect tire pressure monitoring calibration method 100 based on speed interval interpolation includes the following steps:

[0067] S1. When the vehicle enters the self-learning stage, the iTPMS system collects the analysis results of Time Domain Analysis (hereinafter referred to as TDA) and frequency domain analysis (hereinafter referred to as FDA) as the original calibration value.

[0068] In this step, the original calibration values ​​of TDA and FDA collected by the iTPMS system during the vehicle self-learning phase are stored in different speed ranges. After the vehicle self-learning is completed, the real-time calculated TDA and FDA analysis results are also compared with the original calibration values ​​in the same speed range. However, the method can realize the interpolation judgment of the TDA and FDA calibration values ​​collected in real time across speed intervals. It is worth noting that this method needs to collect eno...

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Abstract

The invention discloses an indirect tire pressure monitoring calibration method based on speed interval interpolation. The method comprises the following steps of: dividing the speed of the same vehicle into different speed intervals according to the size, and fitting the relationship among the speed intervals through an original calibration value in a learning stage, calculating the calibration value of an insertable interval according to the speed interval to which the current speed of the vehicle belongs, and comparing the calculated value with the original calibration value of the speed interval, so that whether the tire is abnormal or not is judged. By means of the mode, the problem that the iTPMS (indirectTirePressureMonitoringSystem)of the vehicle cannot provide the due alarm function in the unlearned speed interval when the learning of all main speed intervals cannot be completed in the learning stage can be solved, the monitoring alarm function of the current iTPMS system is perfected, and the wide market prospect is achieved.

Description

technical field [0001] The invention relates to the technical field of tire pressure indirect monitoring, in particular to an indirect tire pressure monitoring calibration method based on speed interval interpolation. Background technique [0002] With the continuous advancement of the level of science and technology, various vehicles have become an indispensable means of transportation in people's lives. In recent years, the problem of vehicle safety has become more and more serious, and people have paid more and more attention to the safety performance of vehicles. Among them, the active safety concept based on ABS / ESC has attracted the attention of more and more automobile manufacturers and consumers. In the automotive field, tire safety issues have always occupied an extremely important position. Statistics show that in high-speed driving, if the speed of the vehicle exceeds 160 km / h, when the front tire blows out, the chances of survival of the occupants in the car ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/04
CPCB60C23/0474Y02T10/40
Inventor 宗培亮
Owner 偌轮汽车科技(武汉)有限公司
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