When an acceptance unit accepts an advance notice, a control unit, controls inflow amount of the air, an air fuel ratio derived from an injection amount of a fuel, and an advance of an ignition timing of an ignition device to temporarily increase a power that can be supplied by a generator. The control unit is determines whether a margin of an opening of a throttle is not less than a predetermined threshold. If the margin of the opening of the throttle is less than the predetermined threshold, the control unit inhibits a temporarily increase of the power. If the margin of the opening of the throttle is not less than the predetermined threshold, the control unit permits the temporarily increase of the power.

A vehicle includes an air-conditioning (AC) compressor, an engine, a belt-integrated starter generator (BISG), and a controller. The controller, responsive to detecting a first AC compressor engagement condition, compares a first AC torque demand that is required to engage the AC compressor with an available torque from the BISG. The controller further, responsive to the available torque being insufficient to engage the AC compressor, engages the AC compressor using the available torque from the BISG and an engine torque from the engine to compensate a torque shortfall between the AC torque demand and the available torque by retarding spark timing and increasing air intake.

Methods and systems are described for engine idle speed optimization. A system may include determining whether a fuel intake rate indicative of an amount of fuel consumed by an idling engine over time satisfies a threshold in comparison to a reference fuel intake rate. The reference fuel intake rate may be indicative of a predetermined amount of fuel consumed by the idling engine over time. The system may adjust a predetermined minimum speed at which the engine idles in response to determining that the fuel intake rate satisfies the threshold.

A vehicle includes an engine including a forced induction device, a knock sensor and a crank angle sensor that detect an occurrence of LSPI, a battery that supplies electric power to a second motor generator, and an ECU. When an occurrence of the LSPI is detected, the ECU restricts a maximum torque, which can be output by the engine with the forced induction device, more than when an occurrence of the LSPI is not detected to prevent an engine operating point from being included in an LSPI area, and when an output of the engine becomes insufficient along with the restriction on the maximum torque, the engine compensates for an amount of the insufficient output with electric power supplied from the battery.

A two-stroke combustion engine comprising a user-operated throttle control, an adjustable valve arranged to control one or more air intakes of the combustion engine, and a control unit arranged to control a state of the adjustable valve, wherein the combustion engine is arranged to operate in a first idle mode at an idle engine speed below a clutch engagement engine speed when the user-operated throttle control is not engaged, wherein the combustion engine is arranged to operate in a second idle mode at a target engine speed above the clutch engagement engine speed when the user-operated throttle control is engaged and when the engine is not subject to an external load, the control unit being arranged to control the state of the adjustable valve to maintain engine speed at the target engine speed when the engine operates in the second idle mode.

A hydrogen fueled powerplant including an internal combustion engine that drives a motor-generator, and has a two-stage turbocharger, for an aircraft. A control system controls the operation of the motor-generator to maintain the engine at a speed selected based on controlling the engine equivalence ratio. The control system controls an afterburner, an intercooler and an aftercooler to maximize powerplant efficiency. The afterburner also adds power to the turbochargers during high-altitude restarts. The turbochargers also include motor-generators that extract excess power from the exhaust.

A method for setting an idling speed of an internal combustion engine of a motor vehicle, in which the idling speed of the internal combustion engine is increased if a predetermined power request within an on-board power system of the motor vehicle is detected, wherein a generator for electrically supplying the on-board power system is driven by the internal combustion engine, and wherein the internal combustion engine is connected to a transmission of the motor vehicle, wherein the connection between the internal combustion engine and the transmission is disconnected, and/or a predetermined braking force is made available by means of at least one brake of the motor vehicle if the predetermined power request is detected.

The invention relates to a method for controlling a turbocharger system (10) fluidly connected to an exhaust manifold (102) of a combustion engine (100). The turbocharger system (10) comprises a turbocharger turbine (22) operable by exhaust gases from said exhaust manifold, and a tank (40) with pressurized gas, said tank being fluidly connectable to said turbocharger turbine. The method comprises the steps of: determining an engine operational mode in which the combustion engine runs below a predetermined speed, determining an external load requiring engine torque which at said engine operational mode would cause the combustion engine to stall, and subsequently injecting pressurized gas from said tank to drive said turbocharger turbine such that the turbocharger turbine is at least partly driven by said pressurized gas, thereby preventing stalling of the combustion engine.

A vehicle control device controls a vehicle that includes an internal combustion engine, an electric motor, and a drive wheel driven that is capable of starting the internal combustion engine by cranking of the electric motor. When the internal combustion engine is started by cranking of the electric motor, the vehicle control device is configured to: control a power running torque of the electric motor based on an intake pressure of the internal combustion engine until the internal combustion engine goes into a complete combustion state; and control a regenerative torque of the electric motor based on a fuel injection amount of the internal combustion engine until a rotation speed of the internal combustion engine converges within a predetermined range including a target rotation speed, after the internal combustion engine goes into the complete combustion state.

In an approach to active engine idle control, an apparatus comprises: an accelerator module interface; an engine control module (ECM) interface; a computer readable storage media; and a controller. The controller is configured to: determine an engine speed target for a vehicle engine in revolutions per minute (RPM) based on an electrical load on the vehicle; determine a voltage curve for one or more position sensors of an accelerator module in the vehicle; determine a voltage target for the ECM for each position sensor of the one or more position sensors; and responsive to a first signal that the apparatus is engaged and a second signal that the vehicle is stopped, set an input voltage to the ECM at the voltage target for each of the one or more position sensors.