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US 12,025,064 B2Granted
Controller for hydrogen engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorAkira Yamashita
Life of this patent
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Abstract
The ECM calculates a peak value of an in-cylinder pressure before ignition based on the operating state of the hydrogen engine. When the peak value of the in-cylinder pressure before ignition exceeds a threshold value, the ECM performs an advancement correction of the ignition timing such that the peak value becomes less than or equal to the threshold value.
Claims8
A controller for a hydrogen engine that uses hydrogen gas as fuel, the controller comprising a processor configured to:
- calculate a peak value of an in-cylinder pressure before ignition based on an operating state of the hydrogen engine;
- set an upper limit value of the in-cylinder pressure before ignition to the in-cylinder pressure in which a hydrogen partial pressure in a combustion chamber is a specified allowable limit value;
- and
- when the peak value is greater than the upper limit value, change a control content of the hydrogen engine such that the peak value becomes less than or equal to the upper limit value.
1 more element
Dependencies are inferred from the claim text.