Patent ID: 6668795
Filing Date: 2003-12-30
Classification: F02D

Abstract:
An engine controller for controlling an engine condition adjusting device in an engine in consideration of an actual engine condition measured by an engine condition measuring sensor, comprisingan interface device for generating an input signal corresponding to a desired engine condition, and an instruction signal generator for determining an instruction signal to be input to the engine condition adjusting device for controlling an operation degree of the engine condition adjusting device on the basis of a comparison between the input signal and an actual engine condition signal corresponding to the actual engine condition so that a difference between the desired engine condition and the measured actual engine condition is decreased, wherein the instruction signal for controlling the engine condition adjusting device is determined on the basis of the comparison between the input signal and the actual engine condition changing device and the engine condition measuring sensor are detected, and is determined on the basis of the input signal while preventing the instruction signal from being determined on the basis of the comparison between the input signal and the actual engine condition signal when an abnormality of at least one of the engine condition changing device and the engine condition measuring sensor is detected, the engine condition adjusting device is at least one of a throttle valve and fuel injector, and the engine condition measuring sensor is at least one of an intake air mass flow meter and an output torque sensor.