Subaru Corporation

Takahito Fujino

Shogo Yoshida

Naohiro Imamura

Kohei Nanbu

Takahiro Akaba

Misako Kuwahara

Suguru Inoue

A charging device includes a charging port, an onboard battery, and a control device. The charging port can be electrically coupled to an external power source. The onboard battery can be electrically coupled to the charging port. The control device is configured to charge the onboard battery with power supplied through the charging port. The control device includes one or more processors and one or more memories. The one or more processors are configured to execute a process including suspending the charging of the onboard battery at a prescribed timing during the charging of the onboard battery, discharging at least some of the power in the onboard battery from the onboard battery when the charging of the onboard battery is suspended, measuring a voltage of the onboard battery after the discharging, and deriving a state of charge of the onboard battery, based on the measured voltage of the onboard battery.

Charging device

A charging device to be applied to a vehicle includes a charging inlet and a charging controller. The charging inlet is to be disposed in the vehicle and is configured to be coupled to a charging connector outside the vehicle. The charging controller is configured to execute charging of an in-vehicle battery disposed in the vehicle with power fed from an outside of the vehicle through the charging inlet. The charging controller is configured to limit a charging current so as to reduce an amount of decrease in charging time resulting from an increase in how many times the charging is executed.

A charging control device includes an acquirer, a first deriver, a second deriver, and an executer. The acquirer is configured to acquire battery information regarding a battery. The first deriver is configured to derive an estimated charging time estimated as time to be taken to charge the battery in external charging of the battery. The estimated charging time is derived based on the battery information. The second deriver is configured to derive a difference time between the estimated charging time and a set charging time set as time for which the external charging of the battery is to be performed. The executer is configured to perform the external charging of the battery such that the battery is to be cooled throughout the difference time and the battery is to be charged throughout the estimated charging time.

Charging control device

A cooling system includes air intakes, air intake fans, a duct, and an intake-air controller. The air intakes are separately formed near seats disposed side by side inside a vehicle. The air intake fans individually take in air through the air intakes. The duct guides the air taken in by the air intake fans to a battery. The intake-air controller controls a ratio of intake air flow rates in the air intake fans according to the state of a seated occupant.

Cooling system

An electric vehicle includes drive systems, a control apparatus that controls the drive systems, and wheels. Each drive system includes a motor and an inverter coupled by wires. The wires of the drive systems are coupled by first bypass lines. Each inverter converts direct current power supplied from a corresponding power supply into alternating current power and supplies the alternating current power to the corresponding motor. Each motor drives the corresponding wheel. When an abnormality occurs in the supply of the alternating current power from the inverter to the motor in one drive system, the control apparatus performs control (i) to stop the supply of the alternating current power from the inverter of the one drive systems, and (ii) to supply the alternating current power supplied from the inverter to the motor in another drive system, to the motor of the one drive system via the first bypass lines.

Growing community of inventors

Tokyo, Japan

Takahito Fujino