Circuit arrangement for electronic control of an internal combus

Details Circuit arrangement for electronic control of an internal combus Circuit arrangement for electronic control of an internal combus

1991-11-15

1993-04-06

Dolinar, Andrew M.

Internal-combustion engines

Starting device

Auxiliary fuel supply device

1231795, 123414, 123476, 123491, 123615, 123 9011, F02D 4300

Patent

active

051993945

ABSTRACT:
The invention provides a circuit for electronic control of an internal combustion engines including injection valves that can be activated electrically as a function of regulated variables such as crankshaft position, engine speed, exhaust-gas composition and engine torque. The circuit includes an electronic control unit with means to activate the intake valves, exhaust valves, injection valves and ignition device as a function of ignition duration and ignition timing. The control unit also includes a start-up program with which ignition sequences of the engine cylinders, intake valves, injection valves and ignition device can be activated for any desired cylinder position of an engine-start-up process. The circuit further includes a program memory, an engine-standstill detection circuit, and an absolute-value angle transmitter to which the engine-standstill detection circuit is responsive. The absolute-value angle transmitter includes a coding disk that is integrally connected with the crankshaft of the engine, circuitry for generating signals corresponding to the crankshaft position during standstill and during rotational movement, and circuitry for generating electrical signals corresponding to engine temperature, engine load and engine knocking. The signals are fed as regulated variables to the electronic control unit.

REFERENCES:
patent: 3757755 (1973-09-01), Carner
patent: 4494519 (1985-01-01), Masuno
patent: 5101780 (1992-04-01), Jones

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