Vehicle speed sensor abnormality detection device
US4928242A · kind A · utility
22Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | May 26, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P21/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to detect a sensor malfunction, the outputs of two sensors which sense the same operational parameter are both compared with a predetermined value. When the outputs of the sensors fall on either side of the predetermined value the one having the lower value is assumed to be inoperative. The comparison is continually repeated and the operative/inoperative status of the sensors continually updated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.