To provide a cooling oil circulation system that is able to shorten a warm-up time.SOLUTION: A cooling oil circulation system 10 includes: an oil pan 31 that stores cooling oil; an oil tank 32 that stores the cooling oil; an oil pump that sucks the cooling oil from the oil pan 31 and feeds it to an electric drive mechanism 2; a first flow passage A1 through which the cooling oil discharged from the electric drive mechanism 2 is allowed to flow to the oil pan 31; a second flow passage A2 that branches from the first flow passage A1 and allows the cooling oil to flow to the oil pan 31 via the oil tank 32; a valve 11 that switches between a first state in which a flow of the cooling oil through the second flow passage A2 is blocked and a second state in which the flow of the cooling oil through the second flow passage A2 is allowed to communicate; and a control unit 40 that executes a control for switching the valve to the first state or the second state.SELECTED DRAWING: Figure 1
【課題】暖機時間の短縮化を図ることが可能な冷却油循環システムを提供すること。【解決手段】冷却油循環システム10は、冷却油を貯蔵するオイルパン31と、冷却油を貯蔵するオイルタンク32と、オイルパン31から冷却油を吸引して電動駆動機構2に送出するオイルポンプと、電動駆動機構2から排出された冷却油をオイルパン31に流す第1流路A1と、第1流路A1から分岐し、冷却油をオイルタンク32を介してオイルパン31に流す第2流路A2と、第2流路A2の冷却油の流れを遮断する第1状態と第2流路A2の冷却油の流れを連通する第2状態とを切換えるバルブ11と、バルブを第1状態又は第2状態に切換える制御を実行する制御部40と、を備える。【選択図】図1
COOLING OIL CIRCULATION SYSTEM
冷却油循環システム
2023-12-12
Patent
Electronic Resource
Japanese
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 / F16H Getriebe , GEARING / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES |
European Patent Office | 2015
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