Vehicle

Patent metadata

Field	Value
Publication number	US-11738657-B2
Application number	US-202117220262-A
Country	US
Kind code	B2
Filing date	Apr 1, 2021
Priority date	Apr 2, 2020
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

A vehicle includes an electric-device temperature acquisition unit, a charging controller, and a predicted charging time deriving unit. The electric-device temperature acquisition unit acquires a temperature of an electric device disposed in a current path for external charging for supplying electric power from a power supply external to the vehicle to a battery mounted in the vehicle. The charging controller pauses a supply of electric power to the battery in response to the temperature of the electric device becoming greater than or equal to a first threshold during the external charging, and resumes the supply of electric power to the battery in response to the temperature of the electric device becoming less than a second threshold lower than the first threshold. The predicted charging time deriving unit derives a predicted charging time predicted to be taken for the external charging in accordance with an instruction for the external charging.

First claim

The invention claimed is:

1. A vehicle comprising:
an electric-device temperature acquisition unit configured to acquire a temperature of an electric device disposed in a current path for external charging for supplying electric power from a power supply external to the vehicle to a battery mounted in the vehicle;
a charging controller configured to
pause a supply of electric power to the battery in response to the temperature of the electric device becoming greater than or equal to a first threshold during the external charging, and
resume the supply of electric power to the battery in response to the temperature of the electric device becoming less than a second threshold lower than the first threshold; and

a predicted charging time deriving unit configured to derive a predicted charging time that is a time predicted to be taken for the external charging in accordance with an instruction for the external charging, the predicted charging time being a sum of a total supply time and a pause time, the total supply time being a total time during which electric power is supplied to the battery, the pause time being a period of time from when the supply of electric power to the battery is paused to when the supply of electric power to the battery is resumed.

2. The vehicle according to claim 1 , wherein when an expected temperature of the electric device at a time of completion of the external charging is predicted to be greater than or equal to a travel-preparation threshold, the predicted charging time deriving unit derives a travel-preparation time and extends the predicted charging time by the travel-preparation time, the travel-preparation time being a period of time from the time of completion of the external charging until the temperature of the electric device becomes less than the travel-preparation threshold.

3. The vehicle according to claim 2 , further comprising
a travel-preparation threshold deriving unit configured to derive the travel-preparation threshold on a basis of an amount of increase in the temperature of the electric device in a previous travel cycle.

4. A vehicle comprising:
circuitry configured to
acquire a temperature of an electric device disposed in a current path for external charging for supplying electric power from a power supply external to the vehicle to a battery mounted in the vehicle,
pause a supply of electric power to the battery in response to the temperature of the electric device becoming greater than or equal to a first threshold during the external charging,
resume the supply of electric power to the battery in response to the temperature of the electric device becoming less than a second threshold lower than the first threshold, and
derive a predicted charging time that is a time predicted to be taken for the external charging in accordance with an instruction for the external charging, the predicted charging time being a sum of a total supply time and a pause time, the total supply time being a total time during which electric power is supplied to the battery, the pause time being a period of time from when the supply of electric power to the battery is paused to when the supply of electric power to the battery is resumed.

Assignees

• Subaru Corp

Inventors

• Nanbu Kohei
• Furuta Kazuki
• Uwai Kenta

Classifications

• B60L53/62 Primary

  in response to charging parameters, e.g. current, voltage or electrical charge · CPC title

• B60L53/65

  involving identification of vehicles or their battery types · CPC title

• B60L2240/545

  Temperature · CPC title

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title

• Y02T10/7072

  Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors · CPC title