Method and apparatus for engine control module wake-up test
US8560158B2 · kind B2 · utility
6Cited by
0References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2010 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Aug 10, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/224
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel system diagnostic wakeup system for a vehicle includes a first control module. The first control module generates a wakeup request, powers off when the vehicle powers off, and powers on and performs a fuel system diagnostic in response to a wakeup signal while the vehicle is powered off. A second control module independent of the first control module receives the wakeup request and generates the wakeup signal after the vehicle powers off based on the wakeup request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.