To cool and warm up a battery with a simple system configuration.SOLUTION: A battery cooling system uses oil for lubricating a transaxle to cool a battery. The battery cooling system includes: a first electric oil pump provided in a first oil passage for supplying the oil to the transaxle and the battery without passage through an oil cooler, in a circulation circuit; a second electric oil pump provided in a second oil passage for supplying the oil to the transaxle and the battery through the oil cooler, in the circulation circuit; and a controller for controlling the first electric oil pump and the second electric oil pump. When the temperature of a battery cell is equal to or lower than a prescribed value (Step S1: Yes), the controller operates the first electric oil pump and stops the second electric oil pump (Step S2). When the temperature of the battery cell is higher than the prescribed value (Step S1: No), the controller stops the first electric oil pump and operates the second electric oil pump (Step S3).SELECTED DRAWING: Figure 4

    【課題】簡素なシステム構成で電池の冷却と暖機とを行うこと。【解決手段】トランスアクスルを潤滑するためのオイルを電池の冷却に用いる電池冷却システムであって、循環回路内で、オイルクーラを経由せずに、トランスアクスルと電池とへオイルを供給する第1油路に設けられた第1電動オイルポンプと、循環回路内で、オイルクーラを経由して、トランスアクスルと電池とへオイルを供給する第2油路に設けられた第2電動オイルポンプと、第1電動オイルポンプおよび第2電動オイルポンプを制御する制御部と、を備え、制御部は、電池セルの温度が所定値以下の場合(ステップS1:Yes)、第1電動オイルポンプを作動させ、かつ第2電動オイルポンプを停止させ(ステップS2)、電池セルの温度が所定値よりも高い場合(ステップS1:No)、第1電動オイルポンプを停止させ、かつ第2電動オイルポンプを作動させる(ステップS3)。【選択図】図4


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    Title :

    BATTERY COOLING SYSTEM


    Additional title:

    電池冷却システム


    Contributors:

    Publication date :

    2020-04-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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