PROBLEM TO BE SOLVED: To provide a lubrication device which can suppress a decrease in the operation efficiency of an electric motor even if the cooling of a lubricating oil by an oil cooler becomes impossible.SOLUTION: The lubrication device includes a first lubricating oil supply part 21 which supplies lubricating oil accumulated in an oil pan 7 to motor generators MG1, MG2 via an oil cooler 24, and a second lubricating oil supply part 31 which supplies the lubricating oil to a gear train 11 via an oil heater 34. The first lubricating oil supply part 21 includes a bypass pipe 25 which makes the lubricating oil flow while making it bypass the oil cooler 24, and a three-way valve 26. The second lubricating oil supply part 31 includes a bypass pipe 47 which makes hot water flow while making it bypass the oil heater 34, and a three-way valve 48. The lubrication device further includes a valve operation control part 53 which controls an opening of the three-way valve 48 of the hot water at a heating side so that the hot water flows to the bypass pipe 47 while bypassing the oil heater 34 when the three-way valve 26 at a cooling side is failed while the cooling of the lubricating oil is impossible.
【課題】オイルクーラでの潤滑油の冷却が不能となった場合でも、電動機の運転効率の低下を抑制できる潤滑装置を提供することを目的とする。【解決手段】オイルパン7に溜まった潤滑油を、オイルクーラ24を介してモータジェネレータMG1,MG2に供給する第1潤滑油供給部21と、オイルヒータ34を介してギヤトレイン部11に供給する第2潤滑油供給部31とを備え、第1潤滑油供給部21は、オイルクーラ24をバイパスして潤滑油を流すバイパス管25と三方弁26とを備え、第2潤滑油供給部31は、オイルヒータ34をバイパスして温水を流すバイパス管47と三方弁48とを備え、冷却側の三方弁26が潤滑油の冷却が不能な状態で故障した場合には、温水がオイルヒータ34をバイパスしてバイパス管47に流れるように、加熱側の温水の三方弁48の開度を制御する弁動作制御部53を備えた。【選択図】図1
LUBRICATION DEVICE
潤滑装置
2015-12-07
Patent
Electronic Resource
Japanese
IPC: | F16H Getriebe , GEARING / 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 / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES |