CONTROL DEVICE OF HYDROGEN ENGINE
To compensate for deviation of output of an air-fuel ratio sensor due to unburned hydrogen.SOLUTION: An ECU 21 for controlling an air-fuel ratio of a hydrogen engine 10, comprises a processing circuit 23 that performs processes of: calculating an amount of fluctuation in combustion pressure based on...
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Zusammenfassung: | To compensate for deviation of output of an air-fuel ratio sensor due to unburned hydrogen.SOLUTION: An ECU 21 for controlling an air-fuel ratio of a hydrogen engine 10, comprises a processing circuit 23 that performs processes of: calculating an amount of fluctuation in combustion pressure based on a detection result of an in-cylinder pressure sensor 18; and calculating a correction amount for correcting rich deviation in output of an air-fuel ratio sensor 20 due to unburned hydrogen in exhaust based on the amount of fluctuation in combustion pressure.SELECTED DRAWING: Figure 1
【課題】未燃水素による空燃比センサの出力のずれを補償する。【解決手段】水素エンジン10の空燃比制御を行うECU21は、筒内圧センサ18の検出結果に基づき燃焼圧の変動量を算出する処理と、排気中の未燃水素による空燃比センサ20の出力のリッチずれを補正するための補正量を燃焼圧の変動量に基づき算出する処理と、を行う処理回路23を備えている。【選択図】図1 |
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