| 摘要 |
PURPOSE:To provide an air-fuel ratio control device of a hydrogen engine which generates no water drop even in a cold condition. CONSTITUTION:A flow regulating valve 25 to regulate the flow amount of a hydrogen gas to a rotary piston engine, and a control unit (ECU) 27 are provided. The ECU 27 has a flow control means 271 and a correcting means 272. The correcting means 272 discriminates the temperature of the combustion gas in a cylinder from the temperature of the cooling water detected by a water temperature sensor 32, the exhaust gas temperature detected by an exhaust gas temperature sensor 33, and the like, and when the temperature of the combustion gas is in the cold condition, the value of the air excessive rate lambda extracted from a map of the flow control means 271 is corrected to a larger value. |
