Fail-safe system for multiple control systems having at least one common sensor for monitoring common control parameter
US5170343A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 1990 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | May 10, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2720/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fail-safe system for a multiple task control system which has a plurality of control channels for performing mutually independent and mutually distinct control functions detects failure in one of the control channels. In response, the fail-safe system discriminates between a failure which occurs at a common sensor which is commonly utilized for more than one control channels or a common control channel which are commonly used for more than one control channels, and a failure at other sensors for monitoring parameters to be used for a singular control channel or individual control channel for single control function. The fail-safe system performs mutually distinct modes of fail-safe operation depending upon the result of the discrimination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.