ENGINE CONTROL METHOD

摘要

An engine control method comprising the steps of: detecting an actual value of oxygen concentration in exhaust gas (S101); detecting an actual value of a mixture gas flow rate and an actual value of a fuel control valve aperture (S101); detecting an actual value of a theoretical air-fuel ratio changing according to a calorific value, based on the actual value of the oxygen concentration, the actual value of the mixture gas flow rate, and the actual value of the fuel control valve aperture (S102); controlling the fuel control valve aperture determining the air-fuel ratio so that the actual value of the air-fuel ratio coincides with the actual value of the theoretical air-fuel ratio (S103-S106); setting a target value of a generator output to a generator output limit value (S112); detecting an actual value of the generator output (S110); and controlling a throttle aperture so that the actual value of the generator output coincides with the target value of the generator output, wherein the output limit value is a size of the output acquired when the air-fuel ratio is maintained at the theoretical air-fuel ratio and the throttle aperture is maintained at a predetermined throttle aperture.