Abstract: An AC/DC converter is configured to perform voltage conversion on power supplied from an AC power supply and supply the power to an auxiliary load during external charging in which a main power storage device is charged by the AC power supply. An auxiliary power storage device stores power to be supplied to the auxiliary load. A diode permits discharging of the auxiliary power storage device while preventing charging of the auxiliary power storage device during the external charging. A current sensor detects discharging of the auxiliary power storage device. A controller adjusts an output voltage of the AC/DC converter while confirming whether or not the auxiliary power storage device discharges, based on a detection value of the current sensor.

Abstract: A hybrid vehicle (100) includes a voltage step-up device (17). The voltage step-up device (17) is provided between driving devices (18, 20) and an electrical storage device (16), and steps up input voltages of the driving devices (18, 20) to a voltage of the electrical storage device (16) or above. An HV-ECU (36) determines whether it is possible to reduce a CO2 emissions for a predetermined travel route by increasing the voltage of the electrical storage device (16). Then, when it is determined that it is possible to reduce the CO2 emissions, the HV-ECU (36) controls an SOC of the electrical storage device (16) so as to increase the SOC at a start of the travel route.

Abstract: A power supply system for a vehicle includes: first and second power lines connected to a PCU; first and second power storage devices each configured to be rechargeable; a capacitor connected between the first power line and the second power line; a switching unit configured to be able to switch between a first state in which one of the first and second power storage devices is connected between the first power line and the second power line, and a second state in which the first and second power storage devices are connected in series between the first power line and the second power line; and a control device for setting the switching unit in the first state to charge the capacitor, and thereafter setting the switching unit in the second state to charge the capacitor.

Abstract: A charge device converting electric power from an external power supply into a charging electric power for a power storage device is configured to allow power conversion bidirectionally. An AC/DC converter of an external charging system converts AC power of a power line into a charging electric power for an auxiliary battery. A DC/DC converter of the vehicle running system converts the electric power from the power storage device into the charging power for the auxiliary battery. When charging of the auxiliary battery is requested, a control device selectively executes a first charge of converting the electric power of the power storage device by the DC/DC converter to charge the auxiliary battery, and a second charge of converting the electric power of the power storage device by a charge device and the AC/DC converter to charge the auxiliary battery, according to an output state of the auxiliary battery.

Abstract: An electric load is electrically connected to a path between an external power supply and a power storage device. An ECU executes temperature-rise control, when the temperature of the power storage device is low, ensuring power consumption of the electric load in association with charging/discharging of the power storage device. During execution of temperature-rise control, the ECU sets a power command value of the external charger, alternately causing a discharging mode having the output power of the external charger positively controlled and in which power consumption of the electric load is ensured in association with discharging of the power storage device, and a charging mode having the output power of the external charger negatively controlled and in which power consumption of the electric load is ensured in association with charging of the power storage device.

Abstract: A vehicle includes a PCU controlling electric power supplied to a motor, a first power storage device, a second power storage device, an ECU, a charger, system main relays SMR1 to SMR4, SMRA, SMRB, and charging relays CR1 to CR4. The first power storage device is formed such that a first module and a second module which are separately disposed are connected in series through SMRA and SMRB. The first power storage device is connected to the PCU through SMR1 and SMR2. The second power storage device is connected to the PCU through SMR3 and SMR4. The charger has a capacitor that is connected to the first power storage device through CR1 and CR2 and also connected to the second power storage device through CR3 and CR4. When charging is completed, the ECU turns on CR1, CR2, SMR1, and SMR2, and turns off SMRA, SMRB, CR3, CR4, SMR3, and SMR4.

Abstract: A charger (200) electrically charges a main battery via (10) an electric power conversion path extending through an isolation transformer (260) and providing electrical isolation between an external power supply (400) and the main battery (10) when first and second relays (RL1, RL2) are turned off and a relay (RL3) is turned on. In contrast, the charger (200) electrically charges the main battery (10) via an electric power conversion path bypassing the isolation transformer (260) and providing electrical connection between the external power supply (400) and the main battery (10) when the first and second relays (RL1, RL2) are turned on and the third relay (RL3) is turned off.

Abstract: During external charging, a charger converts AC electric power from an external power supply into electric power for charging a main battery. An AC/DC converter converts the AC electric power on the power line into auxiliary electric power. The charger is further capable of executing power conversion for converting output electric power of the main battery into AC electric power for output to the power line. While a vehicle is running, normally, the charger and the AC/DC converter are stopped, and the auxiliary electric power obtained by converting the output electric power of the main battery by a main DC/DC converter is output. At the time of regenerative braking of the vehicle, where charging of the main battery is prohibited or restricted, the charger and the AC/DC converter are further operated to intentionally increase loss power, thereby generating auxiliary electric power.

Abstract: In a charging system for a vehicle for charging a power storage device, including the vehicle having the power storage device, and a charging cable for transmitting electric power supplied from an external power supply outside of the vehicle to the power storage device, charging information about charging performed by a charging device is set based on a signal generated by operation of an operation switch provided on a charging connector. This configuration can improve operability during charging.

Abstract: A charger converting electric power from an external power supply into charging power for a power storage device converts AC power on a power line into charging power for an auxiliary battery. A CHR connects or disconnects a path between the charger and the power storage device. A DC/DC converter converts DC power on a power line connected to a smoothing capacitor into charging power for the auxiliary battery and outputs the power onto a power line. An ECU discharges the smoothing capacitor even if the voltage on the power line is lower than a determination voltage by causing the DC/DC converter to operate to charge the auxiliary battery in a discharging mode where the CHR is set OFF.

Abstract: An outlet is provided to output power stored in a power storage device as commercial power, and the outlet receives power supply from the power storage device via a voltage converter. A car navigation device is configured to store information about traveling of a vehicle to a destination. An ECU obtains the information about traveling to the destination from the car navigation device, and controls a state of charge of the power storage device based on the information up to the destination and a usage status of the outlet up to the destination.

Abstract: A power supply system for a vehicle includes: a first power storage device; a second power storage device; a voltage converter performing voltage conversion between a first node and a second node; a first switching unit capable of connecting the first node to any one of the first power storage device and a third node; and a second switching unit capable of connecting the second node to any one of the second power storage device and the third node. To the third node, a power supply device is connected. Preferably, the power supply device includes a solar cell mounted on the vehicle.

Abstract: A power supply device includes: a magnetic-coupling-type multi-phase converter having first and second chopper circuits that respectively adjust respective currents flowing in first and second reactors magnetically coupled to each other, and performing voltage conversion between a DC power supply and a load; and a control circuit. The control circuit includes a determination unit and a current control unit. The determination unit determines whether the temperature of the power supply is lower than a reference temperature. In the case where the power supply temperature is lower than the reference temperature, the current control unit uses a value determined by adding an offset amount to a detected value of the reactor current to set a duty command value for the first chopper circuit and uses a detected value of the reactor current to set a duty command value for the second chopper circuit.

Abstract: A vehicle is equipped with a main battery, an auxiliary machinery battery, a high-capacitance DC/DC converter which converts power on an electric path between the main battery and a motor-generator for traveling to supply the converted power to the auxiliary machinery battery, a low-capacitance sub power supply which converts power on an electric path between the main battery and an external power supply to supply the converted power to the auxiliary machinery battery, and a control device which controls the sub power supply. The control device determines whether or not the DC/DC converter has an abnormality, and operates the sub power supply to perform precharging when it is determined that the DC/DC converter is abnormal. An auxiliary machinery battery voltage V2 when precharging has been performed is set to a value which is higher by a predetermined voltage a than an auxiliary machinery battery voltage V1 when precharging has not been performed.

Abstract: A first opening/closing device is configured to include a precharging relay and a limiting resistor connected in series between a first power storage unit and a first pair of power lines. A second opening/closing device is configured not to include the precharging relay and the limiting resistor. When precharging a capacitor using a second power storage unit, a control device controls opening/closing of first to fourth opening/closing devices so as to form an electric conduction path extending between the second power storage unit and the capacitor via the precharging relay and the limiting resistor.

Abstract: A first opening/closing device is connected between a power storage device and a first pair of power lines. A second opening/closing device is connected between the power storage device and a second pair of power lines. A third opening/closing device opens and closes an electric conduction path between the power storage device and each of the first opening/closing device and the second opening/closing device. When starting to externally supply electric power, a control device charges a first capacitor connected between the first pair of power lines by closing the first opening/closing device and the third opening/closing device, and thereafter charges a second capacitor connected between the second pair of power lines by closing the second opening/closing device and opening the third opening/closing device.

Abstract: An adapter includes a signal generation unit. By connection between the adapter and a plug of a charging cable used when performing external charging with electric power from an external power supply, the signal generation unit supplies a signal instructing power feeding to a vehicle. In response to the signal instructing power feeding, the vehicle drives a power conversion device, thereby supplying electric power from the vehicle to an external electrical device through the charging cable.

Abstract: An adapter includes a signal generation unit and a leakage generation circuit. The signal generation unit provides a signal instructing power feeding to a vehicle when the adapter is connected to a plug of a charging cable used for external charging with electric power from an external power supply. When the plug and the adapter are not completely fitted to each other, the leakage generation circuit electrically connects the power transmission path to a ground to cause a leakage state. In the vehicle, in response to a signal instructing power feeding, a power conversion device is driven to supply electric power from the vehicle to an external electrical device through the charging cable. Then, when the leakage state is caused by the leakage generation circuit, power feeding to the electrical device is stopped.

Abstract: The present invention provides an adapter including a first connection portion that corresponds in geometry to an inlet and a second connection portion that corresponds in geometry to a power supply plug of electrical equipment external to a vehicle. The adapter includes a second control device capable of outputting a signal to a first control device of the vehicle. When the first connection portion is connected to the inlet, the second control device outputs a power supply instruction signal, which is indicative of an instruction to supply electric power, to the first control device to cause the first control device to control a power conversion device of the vehicle to supply electric power from the power conversion device to the electrical equipment.

Abstract: An outlet is provided to output power stored in a power storage device as commercial power, and the outlet receives power supply from the power storage device via a voltage converter. A car navigation device is configured to store information about traveling of a vehicle to a destination. An ECU obtains the information about traveling to the destination from the car navigation device, and controls a state of charge of the power storage device based on the information up to the destination and a usage status of the outlet up to the destination.