Charging system

Patent metadata

Field	Value
Publication number	US-12427886-B2
Application number	US-202217895484-A
Country	US
Kind code	B2
Filing date	Aug 25, 2022
Priority date	Aug 27, 2021
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

A charging system includes a charging device that includes a plug and a charger which supplies electric power to the plug, a vehicle that includes an inlet to which the plug is connected and a power storage device to which electric power is supplied through the inlet, and a notification device that notifies a user of information. The charging device is capable of switching a charging mode from a normal charging mode to a power limited mode in which the charging power is smaller than the normal charging mode. When the charge fee required to complete the charging in the power limited mode is higher than the charge fee required to complete the charging in the normal charging mode, the notification device inquires the user about whether or not to switch the charging mode to the power limited mode.

First claim

What is claimed is:

1. A charging system comprising:
a charging device that includes a plug and a charger which supplies electric power to the plug;
a vehicle that includes an inlet to which the plug is connected and a power storage device to which electric power is supplied through the inlet; and
a notification device that notifies a user of information,
the charging device being capable of switching a charging mode from a normal charging mode to a power limited mode in which the charging power is smaller than that in the normal charging mode, and
when the charge fee required to complete the charging in the power limited mode is higher than the charge fee required to complete the charging in the normal charging mode, the notification device inquiring the user about whether or not to switch the charging mode to the power limited mode.

2. The charging system according to claim 1 , wherein
the notification device includes an input unit that allows the user to input whether or not the user permits to switch the charging mode to the power limited mode,
the notification device transmits a stop signal for stopping the charging by the charging device when the user does not permit to switch the charging mode to the power limited mode.

3. The charging system according to claim 1 , wherein
the notification device inquires the user about whether or not to switch the charging mode to the power limited mode if the charge fee increases as the charge time becomes longer.

4. The charging system according to claim 1 , wherein
the vehicle includes a first temperature sensor that measures a temperature of the inlet,
when the temperature of the inlet becomes equal to or higher than a first predetermined temperature, the vehicle transmits a first notification to the charging device, and
upon receiving the first notification, the charging device switches the charging mode to the power limited mode when the charge fee required to complete the charging in the power limited mode is equal to or lower than the charge fee required to complete the charging in the normal charging mode.

5. The charging system according to claim 1 , wherein
the charging device includes a second temperature sensor that measures a temperature of the plug, and
the charging device switches the charging mode to the power limited mode when the temperature of the plug is equal to or higher than a second predetermined temperature and the charge fee required to complete the charging in the power limited mode is equal to or lower than the charge fee required to complete the charging in the normal charging mode.

Assignees

• Toyota Motor Co Ltd

Inventors

• Aoki Yuya

Classifications

• B60L53/16

  Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles · CPC title

• B60L53/62

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

• Y02T90/12

  Electric charging stations · CPC title

• Y02T90/14

  Plug-in electric vehicles · CPC title

• Y02T10/7072

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