Controller for hydrogen engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsYoshihiro Okada, Makoto Yamazaki, Toshiki Mikami
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Abstract
A controller for a hydrogen engine that includes an in-cylinder pressure sensor and an air-fuel ratio sensor includes processing circuitry. The processing circuitry is configured to execute a process that calculates a fluctuation amount of a combustion pressure based on an output of the in-cylinder pressure sensor and a process that calculates a correction amount based on the fluctuation amount. The correction amount is used to correct a rich deviation of an output of the air-fuel ratio sensor due to unburned hydrogen in exhaust gas.
Claims4
A controller for a hydrogen engine configured to operate using hydrogen gas as fuel, the hydrogen engine including an in-cylinder pressure sensor and an air-fuel ratio sensor,
- the controller comprising processing circuitry configured to execute:
- a process that calculates a fluctuation amount of a combustion pressure based on an output of the in-cylinder pressure sensor;
- and
- a process that calculates a correction amount based on the fluctuation amount, the correction amount being used to correct a rich deviation of an output of the air-fuel ratio sensor due to unburned hydrogen as the fuel in exhaust gas.
Dependencies are inferred from the claim text.