System for detecting a failure in a vehicle velocity detector and a wheel velocity detector
US4125825A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 27, 1976 |
| Grant date | Nov 14, 1978 |
| Priority date | — |
| Expiry date | Apr 27, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/416
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In an automatic brake controller having a vehicle velocity detector for detecting vehicle velocity and a wheel velocity detector for detecting wheel velocity, a failure detecting system is provided for the vehicle velocity detector and the wheel velocity detector. A comparator which makes a comparison between the vehicle velocity signal obtained from said vehicle velocity detector and the wheel velocity signal obtained from said wheel velocity detector generates a predetermined output signal when the difference between both the output signals of said detectors exceeds a predetermined value, and a logical circuit is responsive to said output signal from said comparator to provide a failure signal when a signal representative of a normal transit condition is being generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.