Title:
METHOD AND SYSTEM FOR MEASURING ROTATIONAL SPEED OF A MOTOR VEHICLE WHEELS
Document Type and Number:
WIPO Patent Application WO2003038447
Kind Code:
A3
Abstract:
The invention concerns a system comprising an assembly of pressure sensors (12) for the wheel tyres (11) and transmitters (13) mounted on the wheels, signal processing means (17) for retrieving the modulation envelopes of the signals derived from the transmitters, and for calculating the period of said envelopes and deducing therefrom the rotational speeds.
Inventors:
PINARD THIERRY (FR)
MICHEL NICOLAS (FR)
DELAPORTE FRANCIS (FR)
HERNANDO SERGE (FR)
MICHEL NICOLAS (FR)
DELAPORTE FRANCIS (FR)
HERNANDO SERGE (FR)
Application Number:
PCT/FR2002/003744
Publication Date:
October 16, 2003
Filing Date:
October 30, 2002
Export Citation:
Assignee:
JOHNSON CONTR AUTOMOTIVE ELECT (FR)
PINARD THIERRY (FR)
MICHEL NICOLAS (FR)
DELAPORTE FRANCIS (FR)
HERNANDO SERGE (FR)
PINARD THIERRY (FR)
MICHEL NICOLAS (FR)
DELAPORTE FRANCIS (FR)
HERNANDO SERGE (FR)
International Classes:
B60C23/04; G01P3/44; G01P3/48; (IPC1-7): G01P3/48; G01P3/44; B60C23/04
Foreign References:
| US6215393B1 | 2001-04-10 | |||
| FR2774178A1 | 1999-07-30 |
Other References:
See also references of EP 1442306A2
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