Patent ID: 6938591

Claim:
An electromagnetically driven valve control apparatus for an electromagnetically driven valve which has a movable element that is driven by cooperation of a spring force and an electromagnetic force, and a valve body engageable with the movable element, and which causes an open-close motion of the valve body due to the movable element engaging with the valve body in accordance with the driving of the movable element, comprising: a controller which detects positional information regarding the movable element, and which performs adjustment of an electromagnetic force for driving the movable element so that the movable element reaches a target operation state based on the positional information detected and a model of the electromagnetically driven valve obtained as a spring-mass vibration system, wherein the controller determines whether the movable element is operating in a first state in which the movable element is engaged with the valve body or in a second state in which the movable element is disengaged from the valve body based on the positional information detected, and wherein the controller sets a modes parameter regarding mass based on a total mass of the movable element and the valve body if the determined state is the first state, and the controller changes the model parameter regarding mass by setting the model parameter regarding mass based on a mass of the movable element without the mass of the valve body if the determined state is the second state.