Engine control system
US6799110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Aug 29, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/602
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Evacuation operation performance is improved when any abnormality occurs in an electronic throttle control system.When any serious abnormality occurs, a first abnormality storage element (133) operates, a load relay for a power supply circuit (104a) of a throttle valve open/close controlling motor (103) is de-energized to operate a first alarm and display (109a). Thus a first device carries out the evacuation operation by a fuel cut control.When any slight abnormality occurs, a second abnormality storing element (136) comes to actuate thereby a second alarm and display (109b) being operated. Thus a second device carries out the evacuation operation using together a throttle valve opening control by the motor 103 and the fuel cut control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.