Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1983-12-02
1988-08-09
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Fuel injection system
123472, 123569, 123571, F02M 2506, F02D 3500
Patent
active
047621079
ABSTRACT:
An electronic control device is proposed for manipulated variables of an internal combustion engine having self-ignition. In this device, an injection duration signal is utilized as a load signal. While the injection onset signal can be satisfactorily detected via the opening speed, the hysteresis signal is efficaciously utilized to detect the signal for the end of injection. The proposed solution makes it possible to detect and regulate both the injection onset and the fuel quantity, using only a single transducer in the injection valve, on or in the fuel line, or on the pumping element, and this load signal is available for generalized uses in the control device. It is furthermore possible to obtain an rpm signal on the basis of the signal for injection onset and/or end, and to process it further.
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Schoneck Gunter
Stumpp Gerhard
Wessel Wolf
Greigg Edwin E.
Nelli Raymond A.
Robert & Bosch GmbH
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