System and method for determining the speed and direction of rotation of a vehicle wheel
US11262375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Apr 22, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B27/0068
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for determining the speed and direction of rotation of a wheel in a vehicle are provided. The system includes a tone wheel configured for rotation with the vehicle wheel and a wheel speed sensor facing the tone wheel. The sensor generates different pluralities of phase-shifted signals responsive to rotation of the tone wheel depending on the direction of rotation of the vehicle wheel. A controller receives one of the pluralities of phase-shifted signals from the sensor, receives a direction signal indicative of the direction of rotation of the vehicle wheel from a source other than the sensor, and associates the plurality of phase-shifted signals with the direction of rotation of the vehicle wheel indicated by the direction signal in a memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.