Honda Motor Co., Ltd.

Mutsuji Suzuki

Naoki Maruno

Yoshikazu Nishida

Kazuaki Takizawa

Atsushi Shibutani

Yoshihiro Sunaga

Yoshikazu Ohnuma

Satoru Komoda

There is provided a charge controller capable of charging a capacitor while suppressing the progress of deterioration of the capacitor without unnecessary charge/discharge of the capacitor. The charge controller includes a voltage sensorthat detects the voltage of a capacitor, a current sensorthat detects the charge/discharge current of the capacitor, a battery ECUthat estimates the SOC of the capacitorbased on the detected voltage, and a management ECU. The management ECUcalculates the charge/discharge amount from the start of charging of the capacitorby integrating the charge/discharge currents detected by the current sensorand controls the charging of the capacitorbased on the estimated SOC and the calculated charge/discharge amount. The management ECUupdates and sets the estimated SOC to an actual use upper limit SOC based on the state characteristics of the capacitor

Charge controller

Growing community of inventors

Saitama, Japan

Mutsuji Suzuki