Method and device of processing a signal sensed on board a vehicle from one of its wheels, and corresponding learning method
US6385511B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2001 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Feb 13, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/0416
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Detection and transmission modules respectively fitted on several wheels of the vehicle are set up to transmit a detection signal incorporating an indication of a state of the wheel. The sensed signal is compared with several waveforms, respectively stored in relation to wheel positions, in order to select a wheel position for which the stored waveform matches the sensed signal. After pre-processing the sensed signal and identifying extrema of the pre-processed signal, the comparison between the sensed signal and a waveform comprises applying a time transform to the pre-processed signal to align first and second extrema of the pre-processed signal with first and second extrema of said waveform and computing a distance between the transformed signal and said waveform. The wheel position selected is the one for which the computed distance is minimum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.