Title:
ELECTRICAL POWER SYSTEM
Document Type and Number:
Japanese Patent JP2021018066
Kind Code:
A
Abstract:
To measure electric energy used for charging a power storage device of an electric vehicle separately from electric energy used for other applications without increasing the number of watt-hour meters in an electrical power system.SOLUTION: An electrical power system includes a watt-hour meter for measuring a total used amount of electrical power used in a plurality of applications. One of the plurality of applications is charging of a power storage device included in an electric vehicle. The electrical power system further includes: execution means for performing the charging; interruption means for interrupting the charging; and measurement means for measuring a used amount of electrical power used by the charging using a measurement value of the watt-hour meter when the charging is performed and a measurement value of the watt-hour meter when the charging is interrupted.SELECTED DRAWING: Figure 4
Inventors:
NAKAMURA TORU
Application Number:
JP2019131870A
Publication Date:
February 15, 2021
Filing Date:
July 17, 2019
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
G01R22/06; B60L53/14; B60L53/68; H02J3/14; H02J7/00
Attorney, Agent or Firm:
Fukami patent office