Abstract: The present invention is provided to suppress the power consumption, the calorific value, and the volume of an ignition device in an internal combustion engine while suppressing failures in igniting fuel by an ignition plug. To achieve this, a control device 1 for the internal combustion engine includes an ignition control unit that controls energization of an ignition coil 300 that gives electric energy to an ignition plug 200 that discharges in a cylinder 150 of an internal combustion engine 100 to ignite fuel. The ignition control unit controls energization of the ignition coil 300 so that first electric energy is released from the ignition coil 300 while second electric energy is released as electric energy superposed on the first electric energy, the second electric energy changing based on a gas state around the ignition plug 200.

Abstract: To suppress a failure of ignition of a fuel caused by a spark plug while suppressing wear of an electrode of the spark plug in an internal combustion engine. A control device 1 for an internal combustion engine includes an ignition control unit that controls energization of an ignition coil 300 that applies electric energy to a spark plug 200 that discharges in a cylinder 150 of an internal combustion engine 100 to ignite a fuel. The ignition control unit continuously transmits a first pulse signal (pulse signal for corona discharge) to an igniter connected to the ignition coil 300 before dielectric breakdown between electrodes of the spark plug 200, and continuously transmits a second pulse signal (pulse signal for arc discharge) to the igniter after the dielectric breakdown between the electrodes of the spark plug 200 to control the energization of the ignition coil 300. At this time, a period of the pulse signal for corona discharge is shorter than a period of the pulse signal for arc discharge.

Abstract: The present invention is provided to suppress the power consumption, the calorific value, and the volume of an ignition device in an internal combustion engine while suppressing failures in igniting fuel by an ignition plug. To achieve this, a control device 1 for the internal combustion engine includes an ignition control unit that controls energization of an ignition coil 300 that gives electric energy to an ignition plug 200 that discharges in a cylinder 150 of an internal combustion engine 100 to ignite fuel. The ignition control unit controls energization of the ignition coil 300 so that first electric energy is released from the ignition coil 300 while second electric energy is released as electric energy superposed on the first electric energy, the second electric energy changing based on a gas state around the ignition plug 200.

Abstract: To appropriately adjust a pressure of a fuel according to a valve closing force of a fuel injection valve. To that end, a control device for an internal combustion engine includes a fuel pressure control unit that controls a pressure of a fuel supplied to a fuel injection valve that injects the fuel to an internal combustion engine. The fuel injection valve includes a plunger rod that is a valve body, a solenoid coil that is a drive unit for driving the plunger rod, and an orifice cup in which a fuel injection hole that is opened and closed according to drive of the plunger rod is formed. A cylinder pressure sensor that detects an in-cylinder pressure is attached to the internal combustion engine.

Abstract: An internal combustion engine control device includes an ignition control unit which executes an ignition control for controlling an ignition plug which discharges electricity in a cylinder of an internal combustion engine to ignite fuel. The ignition control unit executes the ignition control such that a predetermined ignition electric energy is supplied to the ignition plug when the ignition plug performs ignition, and a predetermined pre-heating electric energy smaller than the ignition electric energy is supplied to the ignition plug before the ignition plug performs ignition.

Abstract: Ignitability of a fuel by a spark plug is improved while an increase in the number of ignition coils is suppressed. A control device for an internal combustion engine includes an ignition control unit 83 which controls energization of an ignition coil 300a and an ignition coil 300b which each provide electric energy to a spark plug which discharges in a cylinder of an internal combustion engine to ignite a fuel, and a discharge amount detection unit which detects an inter-electrode voltage of the spark plug.

Abstract: To appropriately adjust a pressure of a fuel according to a valve closing force of a fuel injection valve. To that end, a control device for an internal combustion engine includes a fuel pressure control unit that controls a pressure of a fuel supplied to a fuel injection valve that injects the fuel to an internal combustion engine. The fuel injection valve includes a plunger rod that is a valve body, a solenoid coil that is a drive unit for driving the plunger rod, and an orifice cup in which a fuel injection hole that is opened and closed according to drive of the plunger rod is formed. A cylinder pressure sensor that detects an in-cylinder pressure is attached to the internal combustion engine.

Abstract: To suppress a failure of ignition of a fuel caused by a spark plug while suppressing wear of an electrode of the spark plug in an internal combustion engine. A control device 1 for an internal combustion engine includes an ignition control unit that controls energization of an ignition coil 300 that applies electric energy to a spark plug 200 that discharges in a cylinder 150 of an internal combustion engine 100 to ignite a fuel. The ignition control unit continuously transmits a first pulse signal (pulse signal for corona discharge) to an igniter connected to the ignition coil 300 before dielectric breakdown between electrodes of the spark plug 200, and continuously transmits a second pulse signal (pulse signal for arc discharge) to the igniter after the dielectric breakdown between the electrodes of the spark plug 200 to control the energization of the ignition coil 300. At this time, a period of the pulse signal for corona discharge is shorter than a period of the pulse signal for arc discharge.

Abstract: Generation of hydrocarbons in an internal combustion engine is suppressed, and a manufacturing cost of exhaust catalysts is reduced. Therefore, an internal combustion engine control device 1 includes an ignition control unit which executes an ignition control for controlling an ignition plug 200 which discharges electricity in a cylinder 150 of an internal combustion engine 100 to ignite fuel. The ignition control unit executes the ignition control such that a predetermined ignition electric energy is supplied to the ignition plug 200 when the ignition plug 200 performs ignition, and a predetermined pre-heating electric energy smaller than the ignition electric energy is supplied to the ignition plug 200 before the ignition plug 200 performs ignition.

Abstract: Ignitability of a fuel by a spark plug is improved while an increase in the number of ignition coils is suppressed. A control device for an internal combustion engine includes an ignition control unit 83 which controls energization of an ignition coil 300a and an ignition coil 300b which each provide electric energy to a spark plug which discharges in a cylinder of an internal combustion engine to ignite a fuel, and a discharge amount detection unit which detects an inter-electrode voltage of the spark plug.