Sensor error detection in a dual sensor system
US6485114B2 · kind B2 · utility
1Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2001 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Apr 23, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/416
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for determining the operating integrity of a dual sensor system takes in signals from each of the sensors in the dual sensor system. The signals are preferably generally on the same cycle, and the control evaluates whether a single sensor has sent two consecutive cycle signals to the control without a corresponding cycle from the other of the sensors. If so, an indication is made that the other of the sensors may be failing, or is intermittent. Preferably the sensors are associated with wheel speed indicators and the control is an ABS control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.