Knocking suppression apparatus for an internal combustion engine

Details Knocking suppression apparatus for an internal combustion engine Knocking suppression apparatus for an internal combustion engine

1989-05-19

1990-11-13

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

73 35, F02P 515

Patent

active

049694405

ABSTRACT:
A knocking suppression apparatus for an internal combustion engine has a noise removal circuit which is disposed between an acceleration sensor, which senses engine knocking, and a phase shifter, which controls the ignition timing of the engine. The noise removal circuit includes a switch which can be opened and closed to prevent signals from being input to the phase shifter, and a window comparator. When the window comparator determines that the output of the acceleration sensor contains high-level noise signals, the noise removal circuit opens the switch for a prescribed period to prevent the high-level noise signals from being input to the phase shifter and influencing the ignition timing.

REFERENCES:
patent: 4319480 (1982-03-01), Yamguchi et al.
patent: 4467634 (1984-08-01), Rohde et al.
patent: 4583175 (1986-04-01), Abe et al.
patent: 4607602 (1986-08-01), Komurasaki
patent: 4637245 (1987-01-01), Iwata et al.

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