Toyota Jidosha Kabushiki Kaisha

Fujitsu Ten Limited

Fumiyoshi Kuribara

Shigetaka Asano

Daisuke Okajima

Yu Shimizu

Daisuke Kamikihara

Akira Umemoto

Takuya Itoh

Daiki Takayama

Takaharu Hori

Yusuke Furuhashi

Tomohiro Narematsu

Ippei Takesue

Tomoya Aoki

Yasuyuki Morishita

Yutaka Kuboyama

A vehicle includes: a first power line configured to connect an inlet and an energy storage device via a power conversion device; a second power line configured to connect the inlet and the energy storage device without via the power conversion device; a first relay configured to switch between a first electrically connected state in which the second power line is electrically connected and a first electrically disconnected state in which the second power line is electrically disconnected; and a first control device. The first control device is configured to switch the first relay to the first electrically disconnected state when a voltage that can be supplied from the external power supply is lower than a voltage range in which the energy storage device can be charged.

Vehicle, vehicle control device, and charging system

A relay drive control device is configured to control drive of a relay for connecting a battery mounted on a vehicle and an external power supply. The relay drive control device includes a controller configured to, when driving the relay, supply an output voltage of the battery to the relay after increasing the output voltage to a voltage value at which the relay is drivable.

Relay drive control device, control method, and storage medium

A vehicle comprises a motor configured to output a power for driving; a power storage device configured to supply electric power to the motor; a main relay provided between the motor and the power storage device; a power receiving connector configured to be connectable with a power feed connector of an external charger; and a charging relay connected with the power receiving connector and connected with the power storage device via the main relay. This vehicle further comprises a control device configured to determine whether electric power from the external charger is supplied to the power receiving connector during charging of the power storage device with the electric power from the external charger in closed positions of the main relay and the charging relay and to open the main relay when it is determined that the electric power from the external charger is not supplied to the power receiving connector.

Vehicle and control method thereof

A motor vehicle is configured to include a first battery; a second battery; a first converter configured to step-down an electric power of the first power line and supply the stepped-down electric power to a second power line with which the second battery is connected; a third battery; a solar charging device configured to generate electric power using sunlight and supply the generated electric power to the third battery; and a second converter configured to transmit electric power accompanied with a change in a voltage between the second power line and a third power line with which the third battery is connected. The motor vehicle of this configuration is configured to provide permission for relief charging that is charging of the third battery using an electric power on a first power line side, when a voltage of the second battery is not lower than a predetermined voltage.

Motor vehicle electrical system with solar powered battery charging

A vehicle is equipped with a power storage device configured to transmit electric power to and from a motor for driving, and a solar power generation system configured to generate electric power using sunlight and to perform solar charging that charges the power storage device with the generated electric power. The vehicle is configured to perform external charging that charges the power storage device with electric power from an external power supply apparatus. The vehicle prohibits the solar charging until a standby time has elapsed since an off operation of an ignition switch and permits the solar charging when the standby time has elapsed.

Vehicle

An automotive vehicle on which a motor for traveling, a battery configured to supply electric power to the motor, and a charging system configured to charge the battery, are installed. The automotive vehicle includes an abnormality informing unit configured to immediately inform occurrence of an abnormality regarding the charging system when the abnormality is detected, on a condition that the abnormality is a first abnormality that affects traveling, and inform occurrence of an abnormality when a next trip is started, on a condition that the abnormality is a second abnormality that does not affect traveling.

Abnormality informing automotive vehicle

In a low power charging mode, when a predetermined time has elapsed from the start of external charging, the external charging ends. With this, it is possible to suppress excessive extension of a power feeding time from an external power supply, and to secure a charging amount of a high voltage battery at least to some extent.

Control device and control method for vehicle

A vehicle includes a motor, a high voltage battery, a charger; an accessory; a first DC/DC converter, a second DC/DC converter, and an electronic control unit configured to: end the external charging, when a power storage ratio of the high voltage battery reaches a target ratio or when charged electric power of the high voltage battery becomes equal to or less than predetermined electric power before the power storage ratio of the high voltage battery reaches the target ratio, while external charging for charging the high voltage battery with the charger using electric power from the external power supply is being performed; and limit a drive of the accessory compared to when the electric power from the external power supply is greater than the predetermined electric power, when the electric power from the external power supply is equal to or less than predetermined electric power.

A vehicle includes a high voltage battery, a charger and an ECU. When electric power from an external power supply is equal to or less than first predetermined electric power and first power feeding control to feed electric power to a low voltage system power line is performed, the ECU is configured to control the charger to: continue the drive of the charger when a first predetermined time has not elapsed from a start of the first power feeding control or when charged electric power of the high voltage battery is greater than second predetermined electric power that is smaller than the first predetermined electric power after the first predetermined time has elapsed; and stop the drive of the charger when the charged electric power of the high voltage battery is equal to or less than the second predetermined electric power after the first predetermined time has elapsed.

Growing community of inventors

Toyota, Japan

Fumiyoshi Kuribara