CHARGER AND CHARGING METHOD OF THE SAME

• Main Author: HIROSE SAYUMI
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2015
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide a charger capable of suppressing stratification of an electrolyte and excessive rise of temperature even in a state where SOC rises during charging.SOLUTION: A charging circuit provides a power storage device with a charging current. A voltage sensor measures an inter-terminal voltage of the power storage device. A control device detects generation of gassing at the power storage device on the basis of a measurement result of the voltage sensor. When generation of gassing is detected, a charging circuit is controlled and a charging current is lowered. 【課題】 充電中にＳＯＣが上昇した状態でも、電解液の成層化を抑制し、かつ過度の温度上昇を抑制することが可能な充電装置を提供する。【解決手段】 充電回路が、蓄電装置に充電電流を供給する。電圧センサが、蓄電装置の端子間電圧を測定する。制御装置が、電圧センサの測定結果に基づいて、蓄電装置でのガッシングの発生を検出する。ガッシングの発生が検出されると、充電回路を制御して充電電流を低下させる。【選択図】 図２