Internal combustion engine control device and ignition device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11603819
APP PUB NO 20220325687A1
SERIAL NO

17634820

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Abstract

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In an engine including an auxiliary chamber having an ignition plug therein, an amount of heat generated in the auxiliary chamber tends to be large, and thus it is necessary to suppress abnormal combustion. However, when a sensor is added to the ignition plug, a manufacturing cost of the ignition plug tends to increase. An ECU 2 includes an auxiliary chamber temperature estimation unit 21 that estimates a temperature of the auxiliary chamber 42, and an ignition control unit 22 that delays an ignition timing at a first decrease degree defined in accordance with a change amount of the ignition timing with respect to the temperature of the auxiliary combustion chamber as the temperature of the auxiliary chamber 42 increases in a case where the estimated temperature of the auxiliary chamber 42 is included in a middle temperature region equal to or lower than a first set temperature.

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Patent Owner(s)

  • HITACHI ASTEMO, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kumano, Kengo Tokyo, JP 23 184
Oryoji, Kazuhiro Tokyo, JP 29 32
Saruwatari, Masayuki Hitachinaka, JP 62 192

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