Method of and system for controlling idling speed in electronically controlled engine
US4718016A · kind A · utility
8Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Jul 14, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a method of and system for controlling an idling speed in an electronically controlled engine, wherein the idling speed is feedback-controlled in accordance with the operating condition of the engine, an idling speed feedback process and an engine speed upper limit setting process are prohibited when a vehicle speed detecting system has failed, so that erroneous control of the idling speed can be prevented from occurring during running of a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.