Abstract: A start control device of a vehicular direct injection engine provided in a vehicle is configured to execute an ignition start to raise rotation of the direct injection engine at a start of the direct injection engine by fuel injection and multiple sparking performed for a predetermined cylinder in an expansion stroke out of multiple cylinders of the direct injection engine, the start control device of a vehicular direct injection engine reduces the number of times of sparking for the predetermined cylinder at the time of an ignition start of the direct injection engine as compared to an ignition start performed before the current ignition start based on ignition timing of the ignition start performed before the current ignition start.

Abstract: A control device of a vehicle drive device includes a direct injection engine, an electric motor, and a clutch selectively coupling the direct injection engine to a power transmission path from the electric motor to drive wheels, the control device slips the clutch and starts the direct injection engine by an ignition start with fuel injected into a cylinder of the direct injection engine and ignited from a start of rotation of the direct injection engine if the direct injection engine is started during a running mode using only the electric motor as a drive source, the control device weakens an engagement force of the clutch if a shaft torque of the direct injection engine goes through a first negative torque extreme value after initiation of a start of the direct injection engine and becomes zero from a negative torque as compared to before becoming the zero.

Abstract: Provided is a technology for enabling smooth execution of a plurality of pieces of application software which perform communication via a communication path.

Abstract: An object of the invention is to provide a technology that enables to make the feed pressure as low as possible without inviting a misfire or a deviation of the air-fuel ratio, in a fuel injection control system for an internal combustion engine equipped with a low pressure fuel pump and a high pressure fuel pump. According to the invention, to achieve the object, in a fuel injection control system for an internal combustion engine in which fuel discharged from a low pressure fuel pump is supplied to a fuel injection valve with its pressure boosted by a high pressure fuel pump, while a lowering process of lowering feed pressure or the discharge pressure of a the low pressure fuel pump, the lowering process is suspended and restarted with reference to the tendency of change in an integral term used in a proportional-integral control of the duty cycle of the high pressure fuel pump.

Abstract: When the temperature in a cylinder of an engine is low, the fuel injection amount of fuel that has a low vapor pressure and is less likely to be vaporized is increased, and the fuel injection amount of fuel that has a high vapor pressure and is more likely to be vaporized is reduced, so that the start timing of the engine can be kept constant. When the temperature in the cylinder is high, the fuel injection amount of the fuel that has a low vapor pressure and is more likely to be decomposed is reduced, and the fuel that has a high vapor pressure and is less likely to be burned (decomposed) is increased, so that the start timing of the engine can be kept constant. Thus, the start timing of the engine is kept constant irrespective of the fuel property, and deterioration of the drivability can be curbed.

Abstract: A control device of a cylinder direct injection type internal combustion engine controls a fuel injection device and an ignition device, executes injection of the fuel and ignition over multiple times, and executes a control of varying an interval between a timing of the injection of the fuel and a timing of the ignition, at the time of an ignition start in which the fuel is injected into a combustion chamber in an expansion stroke with rotation of an output shaft is stopped state and the fuel is ignited to start the rotation of the output shaft. The control device varies the interval between the timing of the injection of the fuel and the timing of the ignition by adjusting a correlation of a pitch of the injection of the fuel over multiple times and a pitch of the ignition over multiple times.

Abstract: A control apparatus for an internal combustion engine that can be a four-cycle engine including cylinders into which fuel is directly injected, the control apparatus includes an electronic control unit. The electronic control unit is configured to execute a fuel injection and an ignition for the cylinder in an expansion stroke on a condition that a stop of the piston in any one of the cylinders at vicinity of a top dead center after a compression stroke is predicted when the electronic control unit is configured to stop the fuel injection and the ignition for the internal combustion engine upon fulfillment of a predetermined stop condition.

Abstract: Inherent terminal identification information and a terminal unique key are stored in an on-board terminal, and server-side terminal identification information and a server-side terminal unique key, which are same information as the above terminal identification information and terminal unique key are stored in a server. And, the on-board terminal transmits the terminal identification information to the server via a communication terminal, and the server performs terminal authentication according to the server-side terminal identification information, and if the authentication is success, transmits encrypted software for the on-board terminal of which authentication was success to the communication terminal.

Abstract: The hybrid vehicle has a motor generator disposed in a power transmission path and performing as an electric motor and an electric generator, a direct injection engine configured to execute an ignition start in which fuel is injected into any cylinder with a piston stopped in an expansion stroke and ignited for the start, and an engine connecting/disconnecting clutch of friction engagement type directly connecting and interrupting the direct injection engine to/from the motor generator.

Abstract: A fuel feed system which causes liquid fuel to evaporate so as to feed gaseous fuel, provided with an evaporator which includes a heater which heats the liquid fuel to vaporize it and an electric heater which adjusts the temperature of the heater. The heater has a heat conduction surface which supplies heat to the liquid fuel. A difference between the temperature of the heat conduction surface of the heater and the boiling point of the fuel at the evaporator is used as the basis to change the temperature of the heater and adjust the heat flux at the heat conduction surface.

Abstract: A vehicle control device includes a direct-injection engine and an electric rotating machine connected to the engine, wherein the vehicle control device stops the engine after opening a throttle while maintaining an engine speed by the electric rotating machine at the time there is a request to stop the engine. The engine speed is preferably maintained by an output torque of the electric rotating machine at the time fuel supply to the engine is stopped and the throttle is opened. At the time the throttle is opened while fuel is continuously supplied to the engine, it is preferable to maintain the engine speed by allowing the electric rotating machine to generate electric power.

Abstract: The hybrid vehicle has a motor generator disposed in a power transmission path and performing as an electric motor and an electric generator, a direct injection engine configured to execute an ignition start in which fuel is injected into any cylinder with a piston stopped in an expansion stroke and ignited for the start, and an engine connecting/disconnecting clutch of friction engagement type directly connecting and interrupting the direct injection engine to/from the motor generator.

Abstract: A skew adjustment circuit, provided in an integrated circuit device having a plurality of signal lines transmitting a plurality of signals respectively, and a plurality of buffer circuits to which a plurality of signals transmitted through the signal lines are respectively input, has: a plurality of delay circuits, respectively provided in stages preceding the buffer circuits; a monitoring circuit monitoring changes in the signals of the plurality of signal lines; and a delay adjustment circuit, which decides delay amounts for the plurality of delay circuits based on a monitoring result output of the monitoring circuit, and sets the delay amounts in the plurality of delay circuits. The monitoring circuit detects, as the monitoring result, a number of signal changes in the signal lines in which a signal change occurs in a monitoring period, and the delay adjustment circuit decides the delay amounts based on the number of signal changes.

Abstract: Provided is a control device for a hybrid vehicle capable of attaining an assist torque generated by a clutch mechanism at an appropriate timing, upon starting the engine. Since an electronic control device outputs an engagement command for engaging a clutch (clutch mechanism) at a time preceding an (ignition) start command time for igniting an engine by a preceding-sending time, the clutch becomes engaged when the engine speed starts to increase, and the assist torque generated by the clutch mechanism can thus be obtained at an appropriate timing. Because the engine speed that was once increased upon starting the engine is not decreased, the energy that was consumed for starting the engine can be effectively used.

Abstract: An object of the invention is to detect, in a fuel injection control system for an internal combustion engine equipped with a low pressure fuel pump and a high pressure fuel pump, a failure in the fuel injection system including the high pressure fuel pump with high accuracy. To achieve the object, in the fuel injection control system for an internal combustion engine equipped with a low pressure fuel pump and a high pressure fuel pump according to the invention, when a discharge failure in the high pressure fuel pump is detected, the discharge pressure of the low pressure fuel pump is increased. Then, it is determined whether a discharge failure in the high pressure fuel pump occurs or not. If occurs, it is concluded that the fuel injection system including the high pressure fuel pump is in failure.

Abstract: In a fuel injection control system for an internal combustion engine provided with a low pressure fuel pump and a high pressure fuel pump, proportional plus integral control of a high pressure fuel pump is carried out to make a pressure of fuel come close to a target value between the high pressure fuel pump and fuel injection valves. In cases where the high pressure fuel pump is in operation, a feed pressure, which is a pressure of fuel between a low pressure fuel pump and the high pressure fuel pump, is caused to go down when an integral term in the proportional plus integral control does not change or is decreasing, and the feed pressure is caused to go up when the integral term is increasing. In cases where the high pressure fuel pump is in a stopped state, the feed pressure is made higher than before the high pressure fuel pump is stopped.

Abstract: In a hybrid vehicle, when using an ignition start to start a direct injection engine while any one of the cylinders has stopped near top dead center, engine revolutions are raised by producing a first explosion in a first cylinder, which is situated before a second cylinder in an ignition sequence and is in an expansion stroke and in which an exhaust value is not open, by directly injecting fuel into the first cylinder and igniting the fuel. Furthermore, assistance in increasing the engine revolutions is started by transmitting assist torque output from a motor-generator to the direct injection engine via a clutch, in a peak section immediately after the start of increase in the engine revolutions.

Abstract: A control device of a hybrid vehicle has an engine and an electric motor used as a drive source and an electric storage device supplying electric energy to the electric motor, the control device of a hybrid vehicle selectively performing electric motor running using the electric motor as the drive source and engine running using the engine as the drive source, the control device being configured to raise a rotation speed of the engine by directly injecting fuel into a cylinder of the engine and causing an explosion when the engine is started, and after raising the rotation speed of the engine, the electric motor assisting the raising of the rotation speed of the engine, the control device including a clutch mechanism disposed between the engine and the electric motor, the clutch mechanism separating the engine and the electric motor from each other during the electric motor running, after raising the rotation speed of the engine, the electric motor assisting the raising of the rotation speed of the engine via

Abstract: An engine stop control device of a hybrid vehicle has a direct injection engine directly injecting fuel into a cylinder, a clutch connecting/disconnecting the direct injection engine to/from a power transmission path, and a rotating machine at least acting as an electric motor. The hybrid vehicle uses the direct injection engine and the rotating machine as a drive power source for running, and the once interrupted clutch is temporarily connected at the time of the engine stop or immediately after the engine stop when the clutch is interrupted to stop the direct injection engine during running.

Abstract: A vehicle engine start control device in a vehicle includes a direct injection engine directly injecting fuel into a cylinder as a drive power source for running. The vehicle engine start control device is configured to start rotation of the direct injection engine when the direct injection engine is started from a stop state of the direct injection engine in which a first cylinder of a plurality of cylinders is in an expansion stroke while a second cylinder next to the first cylinder in an ignition order is located at a top dead center. Further, the device directly injects fuel into the second cylinder and ignites the fuel while a piston of the second cylinder is moving away from the top dead center toward a bottom dead center in a first expansion stroke in the second cylinder after the start of the rotation.