Method and apparatus for varying the spacing of ignition control

Details Method and apparatus for varying the spacing of ignition control Method and apparatus for varying the spacing of ignition control

1980-12-08

1982-10-12

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123419, F02D 504

Patent

active

043533418

ABSTRACT:
A method of varying the phase spacing of sequential ignition pulses emitted by an ignition pulse transducer and an apparatus for performing the method are proposed, in which with the aid of a phase control circuit a corrected ignition control pulse train of average frequency is formed on the basis of an actual ignition control pulse train. The corrected pulse train being held constant so long as a given phase difference is maintained between the two control pulse trains. As a result, brief rpm fluctuations, which in an rpm range in the vicinity of idling rpm are perceived as jerking, are compensated for. When there are changes in rpm which cause larger phase deviations, the corrected ignition control pulse train is synchronized with the actual ignition control pulse train.

REFERENCES:
patent: 4104990 (1978-08-01), Frobenius
patent: 4133323 (1979-01-01), Adler
patent: 4134374 (1979-01-01), Latsch et al.
patent: 4232368 (1980-11-01), Hill et al.
patent: 4236085 (1980-11-01), An et al.

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