CYLINDER INJECTION ENGINE CONTROLLER

摘要

PROBLEM TO BE SOLVED: To provide a cylinder injection engine controller capable of maximizing transient responsiveness without deteriorating a combustion state in a transient state in which a quantity of intake air increases.SOLUTION: An ECU 50 constituting a cylinder injection engine controller 1 comprises: an additional-air-quantity prediction unit 51 predicting a quantity of additional air to be drawn in additionally to a quantity of intake air detected by an air flow meter 14 if it is assumed that a throttle valve 13 is driven in proportion to depression of an accelerator pedal; a required-additional-injection-quantity computing unit 52 calculating a required additional injection quantity corresponding to the quantity of the additional air; and a possible-additional-injection-quantity acquisition unit 53 acquiring a quantity of possible additional injection that can be additionally injected on the basis of an operating state of an engine 10. A throttle control unit 55 suppresses a valve opening amount of the throttle valve 13 with respect to the depression of the accelerator pedal on the basis of a deviation between the required additional injection quantity and the possible additional injection quantity if the possible additional injection quantity is smaller than the required additional injection quantity.