US 12,253,039 B2
Controller for hydrogen engine
Yoshihiro Okada, Susono (JP); Makoto Yamazaki, Gotenba (JP); and Toshiki Mikami, Susono (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Apr. 1, 2024, as Appl. No. 18/623,671.
Claims priority of application No. 2023-062658 (JP), filed on Apr. 7, 2023.
Prior Publication US 2024/0337226 A1, Oct. 10, 2024
Int. Cl. F02D 41/14 (2006.01)
CPC F02D 41/1454 (2013.01) [F02D 41/146 (2013.01); F02D 2200/024 (2013.01)] 4 Claims
OG exemplary drawing
 
1. 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.