Patent ID: 11897359
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. An electric power system comprising:
a vehicle that performs
external charging of charging a battery with electric power supplied from outside the vehicle, and
external discharging of supplying electric power of the battery to outside the vehicle;

a charging stand that transfers electric power between an AC power supply outside the vehicle and the vehicle in the external charging and the external discharging; and
a server that communicates with the vehicle and the charging stand, wherein
in the external charging and the external discharging, when electric power transferred between the vehicle and the charging stand is AC power,
the vehicle includes
a first charger that converts AC power supplied from the charging stand into DC power and converts DC power supplied from the battery into AC power, and
a first detector that detects electric power input to and output from the first charger, and

the vehicle measures charging power supplied from the charging stand or discharging power supplied to the charging stand using a detection value of the first detector, and transmits, to the server, a first measurement value that is a result of the measurement, and

in the external charging and the external discharging, when the electric power transferred between the vehicle and the charging stand is DC power,
the charging stand includes
a second charger that converts AC power supplied from the AC power supply into DC power and converts DC power supplied from the vehicle into AC power, and
a second detector that detects electric power input to and output from the second charger, and

the charging stand measures charging power supplied to the vehicle or discharging power supplied from the vehicle using a detection value of the second detector, and transmits, to the server, a second measurement value that is a result of the measurement.