Internal-combustion engines – High tension ignition system – Having dwell control
Patent
1990-12-31
1991-10-08
Wolfe, Willis R.
Internal-combustion engines
High tension ignition system
Having dwell control
123643, F02P 345
Patent
active
050544616
ABSTRACT:
A method and apparatus is disclosed for controlling the duration of ionization of spark plugs in an internal combustion engine. Generally, the ionization times of the spark plugs are individually measured and compared against a reference ionization time to develop an error signal representing an undesired deviation from the reference ionization time. Then, the duration of current dwell time in the engine's ignition coil is adjusted so as to change ionization time and reduce the size of the error signal.
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Deutsch Robert W.
Sun Koushun
Moore John H.
Motorola Inc.
Wolfe Willis R.
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