Toyota Jidosha Kabushiki Kaisha

Daisuke Ueo

Osamu Yumita

Tomokazu Masuda

Keisuke Kanamaru

Takahiro Ito

Ryota Tanabe

Kensuke Kamichi

Yohei Imai

Disclosed herein is a power supply device and a control method for the power supply device. The power supply device includes: a battery; an external interface electrically connected to the battery and electrically attachable to or detachable from an external device; a voltage converter provided between the battery and the external interface; a low-voltage circuit that branches from an interface connection circuit connecting the external interface and the voltage converter and is connected to a low-voltage load having a rated voltage lower than a voltage of the battery; an interrupt circuit provided in the low-voltage circuit and configured to electrically interrupt the low-voltage circuit and the interface connection circuit; and an electronic control unit configured to control operations of the voltage converter and the interrupt circuit. The electronic control unit operates the interrupt circuit when a voltage of the interface connection circuit exceeds the rated voltage of the low-voltage load.

Power supply device and control method for power supply device

An electrically powered vehicle includes a power supply device, a first outlet, a second outlet, and an electronic control unit. The first outlet configured to be connected to an external equipment that is not constituent equipment of the electrically powered vehicle. The second outlet is configured to be connected to an external equipment that is not constituent equipment of the electrically powered vehicle. While first power feed and second power feed are being executed simultaneously, in a case where first power feed electric power exceeds a first threshold or in a case where total electric power of the first power feed and the second power feed exceeds a second threshold, the electronic control unit is configured to temporarily stop the second power feed and continue the first power feed.

Electrically powered vehicle

An electrically powered vehicle includes a power supply device, a first outlet configured to be connectable to external equipment that is not constituent equipment of a vehicle, a second outlet configured to be connectable to external equipment that is not constituent equipment of the vehicle, a display device configured to display a first image representing that first power feed is in progress and a second image representing that second power feed is in progress, and an electronic control unit configured to control an image to be displayed on the display device. In a case where the first power feed and the second power feed are being executed, the electronic control unit is configured to perform control such that a display form of the first image is more noticeable than a display form of the second image.

A power source device for a vehicle may include: a power source; a DC outlet which may feed power from the power source to an external device external to the vehicle; a service receptacle which may be provided, within a vehicle interior, separately from the DC outlet; an operator by which a user may request power feed from the DC outlet to the external device; and a vehicle ECU which may control power supply from the power source to the DC outlet and the service receptacle. When the vehicle ECU receives, from the operator, an input requesting the power feed to the external device, the vehicle ECU may stop the power supply to the service receptacle and cause the DC outlet to perform the power supply. With the configuration described above, the possibility of failure to turn off an in-vehicle electric apparatus is reduced.

Power source device for vehicle

A vehicle which a predetermined mode of the vehicle can be selected by a user. The vehicle including an electric power supply, a socket, an input device, and an electronic control unit. The input device is configured to receive, from the user, a selection indication to select an external supply mode. The external supply mode is a mode corresponding to a case where a position of the electrical device is outside the vehicle. The electrical device is configured to receive electric power from the electric power supply via the socket. The electronic control unit is configured to control the vehicle such that traveling of the vehicle is in a suppressed state when the external supply mode is selected by receiving the selection indication.

Vehicle and control method for vehicle

A charging system includes a vehicle, a charging/discharging connector, a detector, and an informing portion. The vehicle is equipped with an electric power storage device, and also includes an inlet for charging the electric power storage device. The charging/discharging connector is a connector that is attached to and detached from the inlet and that is connected to the inlet in a fully fitted state, in which charging can be performed, and a half-fitted state, in which charging is not allowed. The detector includes an electronic control unit for detecting whether a connecting state of the charging/discharging connector is the fully fitted state or the half-fitted state. The informing portion includes an indicator for informing a user of abnormal connection of the charging/discharging connector on the basis of a detection result of the electronic control unit when connection of the charging/discharging connector is the half-fitted state.

Charging system, vehicle, and charging facility

A detector may be a device for detecting insulation decrease of an electric system included in a vehicle. An external terminal may be configured to be connectable with a terminal of a power supply cable connected to a power supply device. A power supply relay, which may be provided between the external terminal and a power line, may be controlled by a vehicle ECU to be in a closed state during external power supply from the electrically powered vehicle to the power supply device. When the insulation decrease of the electric system is detected by the detector, the vehicle ECU may control the power supply relay to come into an open state.

Electrically powered vehicle and power supply system

A PLG-ECU for external charging is provided separately from an HV-ECU for vehicle running, and configured to be capable of controlling external charging relays to be turned on/off. A sub DC/DC converter converting the output voltage of a charger into an auxiliary system voltage at the time of external charging is provided separately from a main DC/DC converter of large capacity used at the time of vehicle running. At the time of external charging, PLG-ECU can execute external charging without starting a vehicle running system while sub DC/DC converter can generate an auxiliary system voltage. Since external charging can be executed while system main relays each are kept turned off, a high voltage is not applied to components at the succeeding stage. Consequently, a main battery can be externally charged without exerting any influence on the durability and the life of each component of the vehicle running system.

Power source system for electric powered vehicle

At the time of external charging, an external charging relay is turned on, and a system main relay is turned off. Therefore, a main battery can be charged by electric power from an external power source, without applying an output voltage of the main battery to a PCU. At the time of external charging, basically, a power supply voltage for an auxiliary system (low voltage system) is generated by a sub DC/DC converter of a small capacity, while a main DC/DC converter of a large capacity used when vehicle is running is stopped. Only when the output of sub DC/DC converter is insufficient to cover the power consumption by the auxiliary system, an ECU operates the main DC/DC converter. Therefore, ECU and auxiliary load group can be operated reliably while efficiency of external charging is improved.

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Nagoya, Japan

Daisuke Ueo