RPM-Governing system for an internal combustion engine with auto-ignition
US4425888A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1982 |
| Grant date | Jan 17, 1984 |
| Priority date | — |
| Expiry date | Jun 24, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/1422
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An rpm-governing system for an internal combustion engine with auto-ignition is proposed, in which the fuel quantity to be injected at least in the event of idling is subject to the influence of an electromagnetic final control element, in which the control unit for forming the final control element trigger signal includes a regulator having PID behavior and in which the regulation signal is formed in accordance with the actual rpm/set-point rpm deviation. This rpm-governing system has an increase in rpm set-point value, with a retarded drop, this increase in set-point being made to follow up the increase in actual value. The PID regulator furthermore has a non-linear and preferably rpm-dependent P component. The signal end stage includes a pulse length modulator, the output signal of which triggers an electromagnetic final control element while there is a simultaneous current regulating action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.