Abstract: An electrically powered vehicle includes a target battery that is externally chargeable and externally power feedable, a sensor that detects a temperature of the target battery, and a controller that performs charging control, discharging control, and temperature increase control of the target battery. The temperature increase control is control for increasing a temperature of the target battery by selecting any of external electric power and battery power and generating heat with the selected electric power. The controller receives a leveling signal that requests for power leveling. When the temperature of the target battery is lower than a first temperature during external power feed requested by the leveling signal, the controller performs the temperature increase control by using battery power before the external power feed requested by the leveling signal.

Abstract: A notification controller controls a notification apparatus that gives a notification to a user of a mobile body. The notification controller controls the notification apparatus to carry out at least one of first notification to control the notification apparatus to give a notification about start of external charging, second notification to control the notification apparatus to give a notification about end of external charging, third notification to control the notification apparatus to give a notification about start of external power feed, and fourth notification to control the notification apparatus to give a notification about end of external power feed. The notification controller can carry out suppression control to restrict a frequency of notification by the notification apparatus by suppressing notification by the notification apparatus.

Abstract: A notification controller controls a notification apparatus that gives a notification to a user of a mobile body. The notification controller controls the notification apparatus to carry out at least one of first notification to control the notification apparatus to give a notification about start of external charging, second notification to control the notification apparatus to give a notification about end of external charging, third notification to control the notification apparatus to give a notification about start of external power feed, and fourth notification to control the notification apparatus to give a notification about end of external power feed. The notification controller can carry out suppression control to restrict a frequency of notification by the notification apparatus by suppressing notification by the notification apparatus.

Abstract: An electrically powered vehicle includes a target battery that is externally chargeable and externally power feedable, a sensor that detects a temperature of the target battery, and a controller that performs charging control, discharging control, and temperature increase control of the target battery. The temperature increase control is control for increasing a temperature of the target battery by selecting any of external electric power and battery power and generating heat with the selected electric power. The controller receives a leveling signal that requests for power leveling. When the temperature of the target battery is lower than a first temperature during external power feed requested by the leveling signal, the controller performs the temperature increase control by using battery power before the external power feed requested by the leveling signal.

Abstract: A power conversion device provided between a DC power supply and an AC electric path, including: a breaking device provided to at least one line of an output electric path in the power conversion device; a first voltage sensor provided on a primary side of the breaking device; a second voltage sensor provided on a secondary side of the breaking device; and a determination unit which calculates a primary-side voltage and a secondary-side voltage, and a primary-side phase and a secondary-side phase and determines that the breaking device is opened, by occurrence of an event in which an absolute value of a voltage difference between the primary-side voltage and the secondary-side voltage is greater than a voltage difference threshold value and an absolute value of a phase difference between the primary-side phase and the secondary-side phase is greater than a phase difference threshold value.

Abstract: A power conversion device provided between a DC power supply and an AC electric path, including: a breaking device provided to at least one line of an output electric path in the power conversion device; a first voltage sensor provided on a primary side of the breaking device; a second voltage sensor provided on a secondary side of the breaking device; and a determination unit which calculates a primary-side voltage and a secondary-side voltage, and a primary-side phase and a secondary-side phase and determines that the breaking device is opened, by occurrence of an event in which an absolute value of a voltage difference between the primary-side voltage and the secondary-side voltage is greater than a voltage difference threshold value and an absolute value of a phase difference between the primary-side phase and the secondary-side phase is greater than a phase difference threshold value

Abstract: A start-up assisting degree by a motor is set at an appropriate level on the basis of a catalyst condition represented by a catalyst temperature, an oxygen storage (degree) in the catalyst, a change in combustion control represented by an air-fuel ratio for combustion, an ignition timing, or an engine condition such as an engine stopping time period, an engine cooling water temperature, a crank stopping position or rotational load.

Abstract: A start-up assisting degree by a motor is set at an appropriate level on the basis of a catalyst condition represented by a catalyst temperature, an oxygen storage (degree) in the catalyst, a change in combustion control represented by an air-fuel ratio for combustion, an ignition timing, or an engine condition such as an engine stopping time period, an engine cooling water temperature, a crank stopping position or rotational load.

Abstract: A method and system for starting an internal combustion engine by utilizing combustion energy produced by injecting and igniting fuel in an engine cylinder under the expansion stroke, which can eliminate the necessity of precisely computing the combustion energy, can minimize an amount of energy, other than the combustion energy, supplied from a second energy supply unit, and can realize stable engine startup without causing a startup failure due to a combustion failure. At startup of the engine, energy is supplied to the engine from both a first energy supply unit performing direct injection and ignition of fuel, etc. and a second energy supply unit employing, e.g., a starter motor, thereby starting the engine. After the engine has started motion, the motion status of the engine is determined based on, e.g., the engine revolution speed, and the energy supply to the engine from the second energy supply unit is stopped based on a determination result.