BATTERY COOLING SYSTEM

To appropriately detect an abnormality in a switching valve in a battery cooling system.SOLUTION: A vehicle 10 includes a battery pack 2, a cooling system 1 that cools the battery pack 2 by circulating a coolant, and an ECU 5 that controls the cooling system 1. The cooling system 1 includes a water...

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Hauptverfasser:	FUKUYA KAZUYA, TSURUTA HARUKA, HIYOSHI MASATOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING COOLING OF INTERNAL-COMBUSTION ENGINES COOLING OF MACHINES OR ENGINES IN GENERAL ELECTRICITY ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	To appropriately detect an abnormality in a switching valve in a battery cooling system.SOLUTION: A vehicle 10 includes a battery pack 2, a cooling system 1 that cools the battery pack 2 by circulating a coolant, and an ECU 5 that controls the cooling system 1. The cooling system 1 includes a water pump 76 that discharges the coolant, a five-way valve 8 configured to form a battery cooling circuit in which a coolant flows through the battery pack 2, and a temperature sensor 94 that detects the temperature of the coolant in a cooling path 6 downstream of the battery pack 2. When the water pump 76 is driven and the five-way valve 8 is controlled so as to form the battery cooling circuit, the ECU 5 detects an abnormality of the five-way valve 8 when the coolant temperature detected by the temperature sensor 94 is higher than a threshold temperature.SELECTED DRAWING: Figure 3 【課題】電池冷却システムにおいて切替弁の異常を適切に検知する。【解決手段】車両１０は、電池パック２と、冷却液が流通することで電池パック２を冷却する冷却システム１と、冷却システム１を制御するＥＣＵ５とを備える。冷却システム１は、冷却液を吐出するウォータポンプ７６と、冷却液が電池パック２を流通する電池冷却回路を形成可能に構成された五方弁８と、冷却経路６のうち電池パック２よりも下流の経路における冷却液の温度を検出する温度センサ９４とを含む。ＥＣＵ５は、ウォータポンプ７６が駆動され、かつ、電池冷却回路が形成されるように五方弁８が制御された状態において、温度センサ９４により検出された冷却液の温度が閾値温度よりも高い場合に五方弁８の異常を検知する。【選択図】図３