To provide a generator control device that, even when communication with an external control device is interrupted, evaluates independently, and can increase an amount of power generated so that a drop in DC voltage can be restricted preemptively, while restricting a fluctuation of rotational speed. A generator control device determines that a voltage drop prediction time control is executed when it is predicted that a drop of the DC voltage will be large; generates a rectangular pulse wave such that a duty ratio increases gradually during the excitation time when determining that the excitation control rotational speed condition was fulfilled, and the voltage drop prediction time control is executed; and changes the duty ratio so that the detected value of the DC voltage nears the increased target voltage when determining that the excitation control rotational speed condition was not fulfilled, and the voltage drop prediction time control is executed.

A supercharging system to be mounted in a vehicle including an engine serving as an internal combustion engine, and a chargeable and dischargeable electric power storage unit includes an exhaust turbine, an electrically powered intake compressor, and an electric power converter. The exhaust turbine is configured to generate electric power in response to receipt of exhaust from the engine. The intake compressor is configured to feed compressed intake air to the engine. The electric power converter is configured to accumulate the electric power generated by the exhaust turbine in the electric power storage unit and supply the electric power accumulated in the electric power storage unit to the intake compressor. At least one of the exhaust turbine or the intake compressor is of an axial-flow type.

Described is a system that includes a solid-state switch in series with a battery and a controller. The system also includes a capacitor coupled between a source and a gate of the solid-state switch and a resistor coupled between the gate of the solid-state switch and ground. The solid-state switch gradually transitions from an open state to a closed state over a time constant of the capacitor and the resistor upon application of power from the battery to the solid-state switch. The system further includes a first switching device that controls the application of power from the battery to the solid-state switch. Additionally, the system includes a second switching device that provides a discharge path of the capacitor upon completion of a task by the controller.

A charging system for a vehicle and a battery charging stop method thereof may provide a charging system for a vehicle and a battery charging stop method thereof, which may stop the charging of a battery upon failure of a current sensor applied to a three-phase coils of a motor configured for driving a vehicle, preventing the occurrence of the torque caused by operation of the motor.

A charging system for a vehicle and a battery charging stop method thereof may provide a charging system for a vehicle and a battery charging stop method thereof, which may stop the charging of a battery upon failure of a current sensor applied to a three-phase coils of a motor configured for driving a vehicle, preventing the occurrence of the torque caused by operation of the motor.

A hybrid vehicle includes: a power generation device including an engine, a first rotating electric machine, and a first inverter; a drive device including a second rotating electric machine that outputs driving force, and a second inverter; an electric storage device that exchanges electric power with the power generation device and the drive device; a switching device that switches electrical connection of the electric storage device and the power generation device between parallel connection and series connection; and a control device that at least controls the switching device. Further, the control device controls the switching device in such a manner as to switch the electric storage device and the power generation device from the parallel connection to the series connection in a case where a combination of a vehicle speed and driving force satisfies a predetermined condition while the hybrid vehicle is traveling.

A hybrid vehicle includes: a power generation device including an engine, a first rotating electric machine, and a first inverter; a drive device including a second rotating electric machine that outputs driving force, and a second inverter; an electric storage device that exchanges electric power with the power generation device and the drive device; a switching device that switches electrical connection of the electric storage device and the power generation device between parallel connection and series connection; and a control device that at least controls the switching device. Further, the control device controls the switching device in such a manner as to switch the electric storage device and the power generation device from the parallel connection to the series connection in a case where a combination of a vehicle speed and driving force satisfies a predetermined condition while the hybrid vehicle is traveling.

A communication system in vehicle according to an aspect includes a transmission unit and a receiving unit. The transmission unit includes a modulation unit that generates a PWM signal having a predetermined duty ratio, an output unit that outputs the PWM signal, a feedback unit that feedbacks the PWM signal, and a transmission controller that controls the modulation unit using the feedbacked signal. The receiving unit includes a reception controller that determined whether to drive a load based on the PWM signal and a switching unit that is turned on or turned off based on the determination of the reception controller.

The invention relates to a charging device for charging a battery of a motor vehicle having an electric drive motor. The charging device has an inductor and a drive converter, which converts a direct voltage of the battery for the electric drive motor during drive operation of the motor vehicle and which has a DC link center point. The inductor, together with the drive converter, is used as a step-up converter for charging operation of the battery. The aim of the invention is to provide a compact and economical charging device This aim is achieved in that the charging device has a controllable switching device, which is designed to charge and/or discharge the DC link center point to a voltage.

The invention relates to a charging device for charging a battery of a motor vehicle having an electric drive motor. The charging device has an inductor and a drive converter, which converts a direct voltage of the battery for the electric drive motor during drive operation of the motor vehicle and which has a DC link center point. The inductor, together with the drive converter, is used as a step-up converter for charging operation of the battery. The aim of the invention is to provide a compact and economical charging device This aim is achieved in that the charging device has a controllable switching device, which is designed to charge and/or discharge the DC link center point to a voltage.