To curb temperature rises in a control device for a supercharger and extend the life of the control device for the supercharger, a work vehicle includes a variable geometry supercharger with variable boost pressure, and a working device driven by pressure oil discharged from a working hydraulic pump, the work vehicle further including: a supercharger control device adapted to control the supercharger; a temperature detection device adapted to detect temperature of the supercharger control device; and a main control device adapted to limit at least one of maximum rotational speed of an engine and maximum vehicle speed of the work vehicle in case the temperature of the supercharger control device is above a predetermined temperature as compared to case the temperature of the supercharger control device is below the predetermined temperature.

The energization control apparatus can select a supercharging mode in which the energization control apparatus controls energization to an electric compressor so as to rotate the electric compressor to supercharge an intake air and an electric power consumption mode in which the energization control apparatus controls the energization to the electric compressor so as to deteriorate efficiency of a motor of the electric compressor than the supercharging mode to increase electric power consumption of the electric compressor. The energization control apparatus supplies regenerated electric power to the electric compressor and control the energization to the electric compressor with the electric power consumption mode when regenerative braking is performed by a generator and regenerated electric power for obtaining demand regenerative braking force is more than an input limiting level of a battery.

A chiller system includes an intercooler configured to cool compressed charge air received from a turbocharger or a supercharger, a low temperature cooling circuit fluidly coupled to the intercooler, the low temperature cooling circuit circulating a coolant to provide cooling to the intercooler and including a low temperature radiator configured to cool the coolant, a chiller-accumulator loop having a combined chiller-accumulator, a chiller bypass line bypassing the chiller-accumulator, and a charging valve configured to selectively provide coolant to at least one of the chiller-accumulator loop and the chiller bypass line, and an air conditioner circuit circulating a refrigerant and having a primary circuit and a bypass circuit. Refrigerant is selectively supplied to the chiller-accumulator to further cool the coolant in the chiller-accumulator loop after the coolant is cooled by the low temperature radiator, thereby providing increased cooling to the intercooler and the compressed charge air to increase engine performance.

An electrified vehicle includes a transmission system including a differential and an electrically powered heating device configured to selectively warm a differential fluid of the differential. The electrically powered heating device is selectively powered to warm the differential fluid.

According to the present invention, there is provided a control device for an internal combustion engine which includes a motor driving a WG valve (waste gate valve), and in which a target opening degree of the WG valve is set in accordance with a running state of an internal combustion engine and a valve opening degree of the WG valve is controlled by controlling electrification of the motor. While the internal combustion engine is starting or is running with the target opening degree set to a fully-closed opening degree, an electrification duty ratio of the motor is controlled such that the electrification duty ratio meets a predetermined value allowing the WG valve to be pressed to a fully-closed position, and electrification of the motor stops after the WG valve is driven to the fully-closed position while the internal combustion engine is in a stop state.

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 coolant circulation system for turbochargers is provided. The coolant circulation system includes a turbocharger provided with a coolant outlet line and a coolant inlet line. The coolant is discharged from the turbocharger through the coolant outlet line. The coolant outlet line is connected to a first flow path connecting an inlet port of a radiator to an outlet port of a heater core. The coolant is supplied into the turbocharger through the coolant inlet line. The coolant inlet line is connected to a second flow path connecting a first end of a water pump to an inlet port of the heater core.

Methods, systems, and apparatus for acceleration event prediction. A system includes one or more external databases connected through a network to a vehicle. The vehicle includes a navigation unit, one or more sensors and an electronic control unit coupled to at least the navigation unit and the one or more sensors. The electronic control unit is configured to obtain navigational map information and vehicle information, determine a predicted route set including a destination location based on the the navigational map information and the vehicle information, determine one or more predicted acceleration events for the predicted route set, detect a respective acceleration event of the one or more predicted acceleration events based on the predicted route set and a first location of the vehicle and send or transmit a signal to a turbocharger that is coupled to an engine to prepare for the respective acceleration event.

In order to address turbo lag at altitude, a vehicle boosts output torque of an internal combustion engine with electric motor torque generated from a battery. The residual charge of the battery is increased at altitude to provide a sufficient reserve for the corresponding increase in turbo lag. The invention is typically applied to a parallel hybrid vehicle.

Methods and systems for delivering powertrain torque of a hybrid vehicle are disclosed. In one example, torque is supplied to vehicle wheels from a piston engine, an electric machine, and a turbine engine via a planetary gear set. The planetary gear set may be configured with at least one sun gear and two ring gears.