Output speed dependent throttle control system for internal combustion engine
US4671235A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1985 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Feb 6, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A throttle valve control system for an internal combustion engine electrically controls throttle valve angular position in order to control intake air flow rate through an air induction passage of an engine. The system employs an accelerator to produce a signal representative of a required or demanded output speed. Actual output speed is monitored by means of a speed sensor. The actual speed is compared with the output speed demand derived from the accelerator signal to obtain the difference therebetween. Feedback control is performed on the basis of the calculated difference so as to control the throttle valve angular position to increase or decrease the actual output speed toward the speed demand value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.