Patent ID: 6527074
Filing Date: 2003-03-04
Classification: B60K,B60L,F01M,F16H,Y02T,Y10S

Abstract:
A lubricating structure for a hybrid vehicle including a transmission disposed along a power train path between an engine and a drive wheel and an electric motor capable of driving the drive wheel in a state that the engine is stopped,the lubricating structure comprising: a primary oil pressure supply source driven by the engine; a pressure governing valve governing oil pressure from the primary oil pressure supply source to supply operation oil into the transmission, and discharging an extra oil at the time of governing pressure into a lubrication oil path for at least one of the transmission and the electric motor; a secondary oil pressure supply source driven by a drive source different from the engine, the primary and secondary oil pressure supply source supplying oil pressure into the transmission; and a relief valve provided on the secondary oil pressure supply source for governing the discharge pressure thereof, wherein a drain circuit of the relief valve is connected to the lubricating oil path.