Internal combustion engine control methods

摘要

A control apparatus controls an actual output engine RPM close to a target RPM that is based on an operational amount of an operating member independent of engine load fluctuations. The control apparatus temporarily increases the target RPM relative to a basic target RPM previously determined according to the operational amount. An acceleration control gradually increases the target RPM equal to or greater than a predetermined increase rate. When the temporary increase and acceleration controls are performed simultaneously, and the temporary increase control is later canceled, an increase rate of the target RPM is set equal to or greater than an increase rate of a basic target RPM corresponding to the operational amount so the target RPM does not become lower than a present RPM. The target RPM and the basic target RPM are thereby gradually matched with each other.

主权项

1. An internal combustion engine control method comprising:
a control apparatus for determining a target RPM of the internal combustion engine based on an operational amount of an operating member independent of fluctuations in a load of the internal combustion engine; the control apparatus performing control such that an actual output RPM is close to the target RPM; the control apparatus performing a temporary increase control in which the target RPM is temporarily increased with respect to a basic target RPM previously determined in correspondence with the operational amount; the control apparatus performing an acceleration control in which the target RPM is gradually increased at an increase rate equal to or greater than a predetermined increase rate; and in a state in which the temporary increase control and the acceleration control are performed simultaneously, when the temporary increase control is canceled, the control apparatus setting an increase rate of the target RPM at a level less than an increase rate of the basic target RPM corresponding to the operational amount so that the target RPM does not become lower than a present RPM, and the control apparatus gradually matching the target RPM with the basic target RPM.