Systems and methods for electronic throttle control
US7997251B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2009 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Nov 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine control system includes a status determination module that determines states of first and second throttle position sensors (TPSs), wherein a fault state includes when one of the first and second TPSs is one of outside of a predetermined range and out of correlation with the other of the first and second TPSs, for greater than a first predetermined period. A throttle actuation module opens a throttle when an engine manifold absolute pressure (MAP) is less than a predetermined MAP threshold, at least one of the first and second TPSs is in the fault state, and the other one of the first and second TPSs is within a second predetermined period from transitioning to the fault state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.