PROBLEM TO BE SOLVED: To provide a temperature increasing system for a battery, which restricts cost increase and detects welding of a relay.SOLUTION: A temperature increasing system for a battery, comprises: a driving battery 20 that supplies power to a motor generator MG2; a heater 32 that warms the driving battery 20; an auxiliary battery 30 that supplies power to the heater 32; a relay 33 that connects or disconnects the power passage of the auxiliary battery 30 and heater 32; and a DC/DC converter 22 that connects/disconnects the power path of the drive battery 20 and auxiliary battery 30. The controller 40 that controls the relay 33 and the DC/DC converter 22 stops the DC/DC converter 22 after the temperature of the driving battery 20 has increased. In this state, if the voltage of the auxiliary battery 30 is decreasing and, at the same time, the temperature of the heater 32 is increasing, it is determined that relay 33 has been welded.SELECTED DRAWING: Figure 1

    【課題】コストの増加を抑制するとともに、リレーの溶着を検出するバッテリの昇温システムを提供することである。【解決手段】モータジェネレータMG2に電力供給する駆動用バッテリ20と、駆動用バッテリ20を温めるヒータ32と、ヒータ32に電力供給する補機用バッテリ30と、補機用バッテリ30とヒータ32との電力経路を接続または切断するリレー33と、駆動用バッテリ20と補機用バッテリ30との電力経路を接続または切断するDC/DCコンバータ22とを備えたバッテリの昇温システムであって、リレー33及びDC/DCコンバータ22を制御するコントローラ40は、駆動用バッテリ20の昇温完了後、DC/DCコンバータ22を停止して、この状態において、補機用バッテリ30の電圧が低下しつつ、かつ、ヒータ32の温度が上昇している場合、リレー33が溶着していると判断する。【選択図】図1


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    Title :

    TEMPERATURE INCREASING SYSTEM FOR BATTERY


    Additional title:

    バッテリの昇温システム


    Contributors:

    Publication date :

    2017-08-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY




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