Device for determining a fuel metering signal for an internal combustion engine
US4275695A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1979 |
| Grant date | Jun 30, 1981 |
| Priority date | — |
| Expiry date | Sep 11, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/187
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device is proposed for determining a fuel metering signal for an internal combustion engine comprising a tachometer, a load detector, as well as a storage element and a summing member. The load signal is preferably selected at certain times and then stored temporarily, wherafter the load signal is optionally corrected, multiplied with a time interval, and the sum total of the multiplication results represent a value with respect to the metering signal. Preferably, the signals are processed in a digital fashion, and the load signal is corrected after having been digitized. This is done because for example, in case of a hot-wire air flowmeter, there is no linearity between air flow (air mass flow) and the output signal of the air flowmeter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.