Performance optimizing control system for an internal combustion engine
US4242995A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1978 |
| Grant date | Jan 6, 1981 |
| Priority date | — |
| Expiry date | Jul 19, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
To match the control adjustment speed of an internal combustion engine control system to operating speed thereof, a control loop is provided which includes an operating parameter sensor, a correlator comparing a sensed signal with an oscillating command signal, a controller responsive to a consequent error signal and which then controls operation of the engine; a speed transducer provides speed-dependent output signals which control (a) the frequency of oscillation of the oscillator and (b) the operating speed of the controller. If the controller is an integrating-type controller, then the time constant of the integrator thereof is changed, for example by varying a resistance value of an R/C circuit as a function of engine speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.