Supervisory diagnostics for integrated vehicle stability system
US7136729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2004 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Nov 26, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/413
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A supervisory diagnostics system and related method for providing vehicle diagnostics for an integrated vehicle stability system that monitors the state of health of sensors, actuators, vehicle sub-system and communication sub-systems that are used in the stability control system. The diagnostics system employs an algorithm to determine whether the various sensors, actuators and sub-systems are operating properly. The algorithm determines whether the components and sub-systems are outputting valid signals at a component level. The algorithm also determines whether a bias of the sensors is below a predetermined limit. The algorithm further determines whether a comparison between the outputs of redundant sensors is below a predetermined threshold for a predetermined period of time. The system also performs a state of health analytical comparison of all the system signals. The system will go in to a fail-safe mode if a fault is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.