Control apparatus

A control apparatus that controls an internal combustion engine mounted in a vehicle to directly inject fuel into a cylinder, the control apparatus comprising:

• a PM-PN exhaust determination part that determines whether or not an operation state of the internal combustion engine is a PM-PN exhaust state in which a particulate matter generated due to a fuel combustion in the cylinder is increased as compared with other operation states;
• and
• a control value calculation part that calculates a control value of an actuator to regulate at least one of a fuel injection timing, a number-of-injections of the fuel, a fuel injection pressure, an intake valve timing, and an exhaust valve timing of the internal combustion engine,
• wherein
• the control value calculation part includes an in-cylinder state estimation part that estimates a state to which the cylinder belongs between a plurality of PM-PN generation states, the plurality of PM-PN generation states being states in which the particulate matter is easily generated as compared with the other state, and being different from each other in a cause to generate the particulate matter, and
• in a case where the operation state of the internal combustion engine is determined to be the PM-PN exhaust state, the control value calculation part calculates the control value in such a way to eliminate the PM-PN generation state according to the PM-PN generation state to which the state in the cylinder belongs.