BATTERY REPLACEMENT SYSTEM

• Main Author: TERASHIMA DAIKI
• Format: Patent
• Language: English; Japanese
• Published: 05.04.2018
• Subjects: BASIC ELECTRIC ELEMENTS; 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; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To enable even a secondhand secondary battery whose deterioration has advanced to be provided as a battery for replacement.SOLUTION: In replacing a secondary battery 16 mounted on a vehicle 12 with a secondhand secondary battery, input/output limitation values (Winout limitation values) for the secondhand secondary battery after replacement are set to the vehicle 12. First, an input/output limitation start temperature of the input/output limitation values is determined on the basis of: a reference input/output limitation start temperature according to a battery rank showing the degree of deterioration of the secondhand secondary battery after the replacement; and a battery temperature distribution (Tb frequency data 42) of the secondary battery 16 before the replacement, the distribution having been acquired in the vehicle 12. An input/output control start SOC of the input/output limitation values is determined on the basis of: a reference input/output limitation start SOC according to the battery rank; and a SOC distribution (SOC frequency data 44) of the secondary battery 16 before the replacement, the distribution having been acquired in the vehicle 12. The determined input/output limitation values are, then, set to the vehicle 12.SELECTED DRAWING: Figure 1 【課題】劣化が進んだ中古二次電池であっても、交換用の電池として提供できるようにする。【解決手段】車両１２に搭載された二次電池１６を中古二次電池に交換する際に、交換後の中古二次電池の入出力制限値（Ｗｉｎｏｕｔ制限値）を車両１２に設定する。まず、交換後の中古二次電池の劣化度合いを示す電池ランクに従った基準入出力制限開始温度と、車両１２において取得された交換前の二次電池１６の電池温度の分布（Ｔｂ頻度データ４２）とに基づいて、入出力制限値のうち入出力制限開始温度を決定する。また、上記電池ランクに従った基準入出力制限開始ＳＯＣと、車両１２において取得された交換前の二次電池１６のＳＯＣの分布（ＳＯＣ頻度データ４４）とに基づいて、入出力制限値のうち入出力制限開始ＳＯＣを決定する。そして、決定された入出力制限値を、車両１２に設定する。【選択図】図１