Toyota Jidosha Kabushiki Kaisha

Tomoya Ono

Shigeki Kinomura

Yamato Niwa

Toru Ando

Koichi Kojima

Akito Motohira

Takeshi Aridome

Hidetoshi Kusumi

Yoshihiko Hiroe

Yuya Aoki

Michiaki Arasu

Noritake Mitsutani

Osamu Yumita

Kensuke Kamichi

Shingo Yumoto

Yoshiyuki Igarashi

Shintaro Kosetsu

A charging controller carries out charging control of a power storage mounted on a vehicle. The vehicle includes a DC charging inlet. The charging controller carries out first charging control when a charging cable which is not a prescribed charging cable is connected to the DC charging inlet and carries out second charging control when the prescribed charging cable is connected to the DC charging inlet. For example, a time period for ground fault detection carried out during charging of the power storage is set differently between first charging control and second charging control. Alternatively, a response delay margin of a charging command is set differently between first charging control and second charging control.

Charging controller and vehicle

A portable charger includes: an AC input unit; a DC output unit; a power conversion circuit; and a controller. The DC output unit includes a start switch. When the start switch is operated by a user, the start switch instructs the controller to control the power conversion circuit such that the DC output unit outputs DC power. However, when at least one of the AC input unit and the DC output unit is unconnected, the start switch is disabled.

Portable charger

A charging inlet, to which a charging connector provided external to a vehicle is connected, includes a housing and a terminal unit provided in the housing. The terminal unit includes a first DC pin, a second DC pin, a first communication pin, a second communication pin, and a ground pin. The housing includes a blocking member. When an AC/DC charging connector complying with CCS and supporting AC charging and DC charging is to be connected to the charging inlet, blocking members interfere with at least one of a first AC terminal, a second AC terminal, a third AC terminal, and a neutral point terminal that are provided in the AC/DC charging connector, to block connection between the AC/DC charging connector and the charging inlet.

Charging inlet

A vehicle performs external charging in which a battery mounted on the vehicle is charged with power supplied from a charger provided external to the vehicle in accordance with a prescribed charging standard. The vehicle includes: a short-distance communication module and a navigation screen that provide a user of the vehicle with information on the external charging; and an ECU that controls the short-distance communication module and the navigation screen. The ECU controls the short-distance communication module and the navigation screen, when failure to perform the external charging in accordance with the charging standard is caused by the charger, to provide the user with at least one of information that the failure is caused by the charger and information that it is recommended to use another charger other than the charger.

Vehicle and method of controlling the same

A charging apparatus includes a plurality of batteries, a changeover relay that can be changed over between a first state where the plurality of the batteries are connected in series to one another and a second state where the plurality of the batteries are connected in parallel to one another, an electric storage device, a main relay that is provided between the electric storage device and an electric load of a vehicle, and a control device that controls the opening/closing of the changeover relay. The control device renders the changeover relay in the first state when the main relay is in an open state.

Charging apparatus

A battery system including: a plurality of battery modules; a plurality of switches arranged in a circuit including the plurality of the battery modules, the plurality of the switches being configured to switch connection of the battery modules between a series state and a parallel state; a storage device that stores at least one abnormality pattern; and a control device configured to: i) control switching of each of the plurality of the switches; and ii) control switching of the switches other than the predetermined switch such that the battery modules rue not in a short-circuited state using the abnormality pattern when the predetermined switch is unable to be controlled.

Battery system

An ECU executes a charge preparation communication sequence after a connector is connected to an inlet and before external charging is performed, and counts a response time (message transmission and reception time) of a charging station to a prescribed event. A memory stores a message transmission and reception time of a specific charging station. The ECU does not perform external charging when the message transmission and reception time counted during the charge preparation communication sequence is equal to the message transmission and reception time stored in the memory.

Vehicle charge controller for preventing external charging from charging facility based on response time of charging facility

An ECU included in a vehicle performs a first charging control when a minimum output voltage of a direct-current (DC) charger obtained through an information exchange process is less than or equal to a lower limit charging voltage for a power storage device, and performs a second charging control when the minimum output voltage is higher than the lower limit charging voltage of the power storage device. In the second charging control, initially, the ECU electrically connects a pre-charge circuit to a charging path from the DC charger to the power storage device, starts DC charging, and checks a voltage that is actually applied from the DC charger to the vehicle. If a voltage applied from the DC charger to the vehicle is a value corresponding to the voltage of the power storage device, the ECU permits the DC charging and performs the first charging control.

Vehicle charging system

An electrified vehicle includes a system main relay attached to an electric power line for motive power and a charging relay attached to a charging electric power line through which a portion of the electric power line for motive power positioned between the system main relay and a drive circuit and a vehicle-side connection portion connected to a station-side connection portion of a direct current charging station are connected to each other. When the vehicle-side connection portion and the station-side connection portion are disconnected from each other while an electric storage device is being charged with electric power from the direct current charging station, diagnosis about double-pole welding abnormality of the charging relay is performed after the charging relay is turned off with the system main relay being in a turned-on state and the system main relay is turned off after the diagnosis.

Electrified vehicle

An electrically powered vehicle includes electric power lines through which electric power supplied from external charger flows, an electric power storage device electrically connected to the electric power lines, a charging circuit electrically connected to the electric power lines, and an electronic control unit. The electric power storage device is configured to be charged with the electric power from the external charger. The charging circuit is configured to charge the electric power storage device in either a first state or a second state. The electronic control unit is configured to acquire charger information indicating information related to electric power to be suppliable from the external charger, generate the command by using the acquired charger information, and output the command to the charging circuit.

Electrically powered vehicle and control method for electrically powered vehicle

A battery system including: a plurality of battery modules; a plurality of switches configured to switch a connection state of the plurality of battery modules between a series state and a parallel state; and an electronic control unit configured: to control switching of the plurality of switches; and to fix ON-OFF states of the plurality of switches such that the connection state of the plurality of battery modules is the series state or the parallel state when a deterioration parameter indicating a degree of deterioration of a predetermined battery module out of the plurality of battery modules reaches a threshold value, the ON-OFF state representing a state in which a switch is open or closed.

Battery system for switching connection states of battery modules

A motor-driven vehicle includes a system main relay that is attached to a running electric power line connecting a power storage device to a drive circuit, a capacitor that is attached to the running electric power line between the system main relay and the drive circuit, and a charging relay that is attached to a charging electric power line connecting a vehicle-side connector to the running electric power line between the system main relay and the drive circuit. When a stand-side connector is disconnected from the vehicle-side connector while the power storage device is being charged with electric power from a direct-current charging stand, the charging relay and the system main relay are turned off, a two-pole welding abnormality of the charging relay is diagnosed using a voltage of the capacitor, and then the capacitor is discharged.

Motor-driven vehicle

A charging and discharging system includes a vehicle, a cable, and a charging and discharging device. The vehicle includes an electric storage device, a first fuse, and an inlet. The cable includes a connector, a second fuse, and a power line. The charging and discharging device is configured to convert AC power supplied from a commercial AC power source into DC power and to supply the DC power to the electric storage device via the cable in a charging mode. The charging and discharging device is configured to convert DC power supplied from the electric storage device via the cable into AC power and to supply the AC power to a load in a discharging mode. The first fuse is configured to be melted and cut earlier than the second fuse when the power line causes a short circuit in the discharging mode.

Charging and discharging system for a vehicle including a first fuse in the vehicle and a second fuse in a cable connected to the vehicle

A power extraction device is an extraction device configured to extract electric power from a vehicle by being connected to a first connecting portion of the vehicle, the vehicle including a storage battery and the first connecting portion to which a plug is connected so that the first connecting portion is able to perform at least one of supplying of electric power to the storage battery and discharging of electric power accumulated in the storage battery to its outside. The extraction device includes: a second connecting portion to be connected to the first connecting portion provided on an outer peripheral surface of the vehicle; and a third connecting portion to which an external connection plug configured to connect an external device to the extraction device is connectable. The third connecting portion includes a connection surface to which the external connection plug is connected.

Extraction device

An external power supply connector attached to a vehicle-side connecting portion and control unit controlling the supply power to the vehicle-side connecting portion, supplying power from the vehicle to outside. The external power supply connector includes a body including an external connecting portion to an electric plug supplying power to a connected external device; a restricting member enables switching between restricting state wherein the electric plug is restricted from being attached and detached to and from the external connecting portion, and allowing state enabling the electric plug to attach and detach to and from the external connecting portion. A signal outputting portion outputs a signal to the control unit and detecting portion. The detecting portion detects the restricting state and allowing state of the restricting member. In allowing state, the signal outputting portion outputs a prohibiting signal from being supplied to the external power supply connector to the control unit.

Growing community of inventors

Toyota, Japan

Tomoya Ono