Vehicle and charging method of vehicle

Patent metadata

Field	Value
Publication number	US-12355292-B2
Application number	US-202217876066-A
Country	US
Kind code	B2
Filing date	Jul 28, 2022
Priority date	Sep 24, 2021
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

A vehicle includes an electrical component electrically connected to a transmission path of supply electric power, a temperature sensor configured to detect a temperature of the electrical component, a control device configured to suppress the supply electric power when the temperature detected by the temperature sensor is equal to or higher than a threshold temperature, as compared with a case where the temperature detected by the temperature sensor is lower than the threshold temperature. The control device is configured to lower the threshold temperature when the external charging is executed again after the external charging is stopped, as compared with a case before the external charging is stopped.

First claim

What is claimed is:

1. A vehicle configured to execute external charging that charges an in-vehicle power storage device with supply electric power from charging equipment, the vehicle comprising:
an electrical component electrically connected to a transmission path of the supply electric power;
a temperature sensor configured to detect a temperature of the electrical component; and
a control device configured to suppress the supply electric power when the temperature detected by the temperature sensor is equal to or higher than a threshold temperature, as compared with a case where the temperature detected by the temperature sensor is lower than the threshold temperature,
wherein the control device is configured to lower the threshold temperature when the external charging is executed again after the external charging is stopped, as compared with a case before the external charging is stopped.

2. The vehicle according to claim 1 , wherein the control device is configured to raise the threshold temperature until the threshold temperature reaches a value before the stop of the external charging after lowering the threshold temperature.

3. The vehicle according to claim 2 , wherein the control device is configured to raise the threshold temperature as time elapses after the supply electric power falls below a predetermined value.

4. The vehicle according to claim 3 , wherein the control device is configured to raise the threshold temperature as time elapses from when the external charging is stopped.

5. The vehicle according to claim 1 , wherein as a temperature difference between the temperature detected by the temperature sensor and a temperature of a portion of the electrical component, which is not detected by the temperature sensor, becomes larger, a lowering amount of the threshold temperature at the time when the external charging is stopped becomes larger.

6. The vehicle according to claim 1 , wherein the electrical component includes charging relays configured to cut off the supply electric power according to a command by the control device.

7. The vehicle according to claim 1 , wherein the electrical component includes an inlet to which a charging cable extending from the charging equipment is connected.

8. A charging method of a vehicle, the vehicle being configured to execute external charging of an in-vehicle power storage device with supply electric power from charging equipment and including a control device, the charging method comprising:
as a detection step, detecting, by the control device, a temperature of an electrical component electrically connected to a transmission path of the supply electric power in the vehicle;
suppressing, by the control device, the supply electric power when the temperature detected in the detection step exceeds a threshold temperature, as compared with a case where the temperature detected in the detection step is lower than the threshold temperature; and
lowering, by the control device, the threshold temperature by the control device when the external charging is executed again after the external charging is stopped, as compared with a case before the external charging is stopped.

Assignees

• Toyota Motor Co Ltd

Inventors

• Kamikihara Daisuke
• Aoki Tomoya

Classifications

• H02J7/65

  against overtemperature · CPC title

• H02J7/975 Primary

  in response to temperature · CPC title

• B60L53/62 Primary

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

• B60L53/302

  Cooling of charging equipment · CPC title

• Y02T90/14

  Plug-in electric vehicles · CPC title