Ignition system for internal combustion engines

Details Ignition system for internal combustion engines Ignition system for internal combustion engines

1980-12-31

1982-07-06

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123422, 123423, 36443107, F02P 504

Patent

active

043377440

ABSTRACT:
Clock pulses are counted to provide a count indicative of speed in a counter that is reset with every revolution of a reference mark. The difference between successive counts is multiplied by a fractional factor, which is not necessarily the same for acceleration and deceleration, then added algebraically to the current count value. The acceleration-corrected speed value is then multiplied by a parameter-dependent digital value obtained from a summing circuit to which various engine condition parameters are supplied and the output of the last-mentioned multiplier is supplied to a comparator to which the current count of clock pulses beginning with the reference mark passage is compared. When the comparator finds the match, spark ignition takes place. Another counter counts the clock pulses following each reference mark for sequencing multiplexers that enable some components to serve in more than one operation, in effect controlling the flow of digital values around various loops in the circuit.

REFERENCES:
patent: 4015565 (1977-04-01), Aono et al.
patent: 4063539 (1977-12-01), Gorille et al.
patent: 4099495 (1978-07-01), Kiencke et al.
patent: 4133323 (1979-01-01), Adler
patent: 4168682 (1979-09-01), Gartner et al.
patent: 4174688 (1979-11-01), Honig et al.
patent: 4225925 (1980-09-01), Hattori et al.

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