Control system for an internal combustion engine
US6216669A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control system for an internal combustion engine adapted to precisely control an ignition position of the internal combustion engine in accordance with a revolution of the engine detected from an output of a pick up coil generating a signal in synchronism with a rotation of a crank shaft and an opening degree of a throttle valve by use of a microcomputer. Whenever an output of a throttle sensor is sampled, a three-dimensional map providing a relation among the revolution of the engine, the opening degree of the throttle valve and the ignition position is transferred into a two-dimensional map providing a relation between the revolution of the engine and the ignition position whereby the ignition position is determined by the two-dimensional map as soon as the revolution of the engine is detected so that the ignition is operated when the determined ignition position is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.