Method and apparatus for closed-loop ignition time control

Details Method and apparatus for closed-loop ignition time control Method and apparatus for closed-loop ignition time control

1980-09-29

1983-03-22

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123425, F02P 504

Patent

active

043771408

ABSTRACT:
A closed-loop control of the instant of ignition is proposed, in which, with the aid of an ionic current sensor, the end of the ignition phase of an operational mixture of an internal combustion engine is ascertained as an actual value and the instant of ignition is corrected in accordance with the deviation of this actual value from a set-point value relating to the crankshaft angle. In this manner, the instant of ignition in externally ignited internal combustion engines, or the instant of injection in compression ignition engines, can be optimized by simple means, without expensive adjusting devices for the ignition angle or for the instant of injection. In addition, it is possible with a closed-loop control of this kind to perform an optimal adaptation of the ignition to varying peripheral circumstances such as the thermal status of the engine, characteristics of the fuel and of the combustion air, engine wear, and so forth.

REFERENCES:
patent: 4130097 (1978-12-01), Ford
patent: 4186692 (1980-02-01), Kawamura et al.
patent: 4232545 (1980-11-01), Dobler et al.
patent: 4233943 (1980-11-01), Rogora et al.
patent: 4244339 (1981-01-01), Gorille
patent: 4257373 (1981-03-01), McDougal et al.
patent: 4304203 (1981-12-01), Garcea et al.

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