Preignition restraining device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9470155
APP PUB NO 20150361914A1
SERIAL NO

14735616

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Abstract

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An ECU has an output-value obtaining portion, a preignition estimating portion and a valve-opening-time controller. The output-value obtaining portion obtains the output value of the knock sensor, which corresponds to an intensity of an engine knocking. A preignition estimating portion estimates that a preignition will be generated in an internal combustion engine, when the obtained output value is greater than or equal to the specified threshold. When the preignition estimating portion estimates that a preignition will be generated, the exhaust-valve timing control mechanism advances the opening time of the exhaust valve to suppress the preignition.

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Patent Owner(s)

  • DENSO CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Oka, Kuniaki Obu, JP 10 39

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