US 6,009,371 A · Control apparatus and method for an internal combustion engine installed in a vehicle

Abstract

Vehicle-installed internal combustion engine control apparatus and method maintain a good operating condition of the internal combustion engine even if the opportunity of control learning is limited. To adjust the closed-state opening of a throttle valve, that is, opening of the throttle valve under a non-load condition, feedback control of the opening of the throttle valve is performed so that the idle speed approaches a target revolution speed, while the non-load idling of the engine is being performed. A feedback correction amount for the feedback control is stored as a learned value. The learned correction value is reflected in the next and later operations of the closed-state opening control of the throttle valve, so that a proper closed-state opening of the throttle valve is set. During the learning of the feedback correction amount, the engine is inhibited from being stopped.

Claims16

Dependent claims

A control apparatus for an internal combustion engine installed in a vehicle, the control apparatus comprising:

an engine stopper that stops the internal combustion engine in accordance with a running condition of the vehicle;
control value learning means for learning a control value for control of the internal combustion engine during operation of the internal combustion engine;
and
stop inhibiting means for inhibiting the internal combustion engine from being stopped by the engine stopper until the learning of the control value by the control value learning means is completed.

1 more element

Dependencies are inferred from the claim text.

Control apparatus and method for an internal combustion engine installed in a vehicle

Life of this patent

Control apparatus and method for an internal combustion engine installed in a vehicle

Life of this patent

Abstract

Claims16