Internal-combustion engines – Combustion chamber means combined with air-fuel mixture...
Patent
1981-01-28
1983-12-20
Cox, Donald B.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
123435, F02P 504
Patent
active
044210868
ABSTRACT:
Ignition timing is changed within a predetermined range at a slow frequency and the fluctuations in vibrations of the engine block at that slow frequency are detected. By monitoring the phase of the vibrations with the phase of the slow frequency, whether the timing is on the advanced side or delayed side with respect to the optimum ignition timing can be determined. Ignition timing is controlled based on the result of the determination so that the ignition timing can approach the optimum ignition timing. As a result, shifts from the optimum ignition timing can be reliably corrected, so that the engine always operates at the best condition.
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Shigematsu Takashi
Watanabe Tomoyuki
Cox Donald B.
Toyota Jidosha Kogyo Kabushiki Kaisha
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