CHARGE/DISCHARGE CONTROL DEVICE OF ON-VEHICLE SECONDARY BATTERY

• Main Authors: ISHIOROSHI AKIO, IWATA TOSHIHIRO, KOGA TATSUYA, MANO AKIRA
• Format: Patent
• Language: English; Japanese
• Published: 20.06.2016
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To suppress the deviation of an ion concentration in an electrolytic solution caused by discharge, and to suppress discharge deterioration, in a secondary battery having such as a characteristic that the ion concentration in the electrolytic solution is deviated by discharge.SOLUTION: In the case that power supply from an engine 18 to a power accumulation device 20 is stopped in a vehicle which is mounted with the engine 18, rotating electric machines 15, 16, and the power accumulation device 20 being a secondary battery, the power accumulation device 20 acquires an index value E indicating a degree of the deviation of an ion concentration in an electrolytic solution by discharge, and also acquires a shift position from a shift lever mechanism 12 of the vehicle, the acquired shift position is a neutral position, and the acquired index value E exceeds a battery deterioration generation threshold, a charge/discharge control device 40 of the on-vehicle secondary battery makes notification means 14 notify an alarm having a content for changing the neutral position to the other shift position.SELECTED DRAWING: Figure 1 【課題】電解液中のイオン濃度が放電により偏る性質を有する二次電池について、放電による電解液中のイオン濃度の偏りを抑制し、放電劣化の発生を抑制することである。【解決手段】車載二次電池の充放電制御装置４０は、エンジン１８と回転電機１５，１６と二次電池である蓄電装置２０を搭載する車両においてエンジン１８から蓄電装置２０への電力供給が停止しており、蓄電装置２０が放電によって電解液中のイオン濃度が偏る程度を示す指標値Ｅを取得し、車両のシフトレバー機構１２からシフトポジションを取得し、取得されたシフトポジションがニュートラルポジションであり、取得された指標値Ｅが電池劣化発生閾値を超えるときに、報知手段１４に対し、ニュートラルポジションを他のシフトポジションに変更する内容の警告の報知を行わせる。【選択図】図１