Title:
VEHICLE AND VEHICLE CHARGING METHOD
Document Type and Number:
Japanese Patent JP2022136405
Kind Code:
A
Abstract:
To improve an accuracy of estimating a full charge capacity of a battery.SOLUTION: An ECU 90 estimates a full charge capacity of a battery 10 based on a first OCV determined from a voltage detected by a voltage sensor 21 before a start of an external charging and a second OCV determined from a voltage detected by the voltage sensor 21 after an end of the external charging. The ECU 90 predicts whether the external charging is completed by a departure time, when assuming that the external charging is started after waiting for a polarization elimination time required for eliminating polarization of the battery 10. When the external charging is predicted to be completed by the departure time, the ECU 90 starts the external charging after waiting for the polarization elimination time, and uses a voltage detected by the voltage sensor 21 after waiting for the polarization elimination time and before starting the external charging as the first OCV, and when the external charging is predicted not to be completed by the departure time, the ECU 90 starts the external charging without waiting for the polarization elimination time.SELECTED DRAWING: Figure 4
Inventors:
YOSHIDA HIROSHI
FUJIMOTO KENTA
FUJIMOTO KENTA
Application Number:
JP2021035994A
Publication Date:
September 21, 2022
Filing Date:
March 08, 2021
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B60L53/14; B60L3/00; B60L50/60; B60L58/12; H01M10/44; H01M10/48; H02J7/00
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office
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