Patent ID: 8308595
Filing Date: 2012-11-13
Classification: B60K,B60L,F16H,Y02T

Abstract:
1. A hybrid drive device, comprising: an electric motor; an automatic transmission that transfers rotation of an input portion to an output portion with a speed of the rotation changed using one of a plurality of shift speeds established by changing a power transfer path using a plurality of friction elements; a first lubricating oil passage that guides lubricating oil to a location where lubrication is necessary; and a second lubricating oil passage that is branched from the first lubricating oil passage and that directly guides the lubricating oil to a predetermined friction element that is engaged for establishment of at least a first speed of the plurality of shift speeds, wherein an orifice is provided in a portion of the first lubricating oil passage downstream of a point at which the second lubricating oil passage is branched, a switching valve for the predetermined friction element is provided in the second lubricating oil passage to be switched between a communicated state and a blocked state, a hydraulic servo for the predetermined friction element is supplied with a predetermined hydraulic pressure regulated by a pressure regulation unit on the basis of a line pressure to control the predetermined friction element to one of a completely engaged state, a disengaged state, and a slip state, and the switching valve for the predetermined friction element includes a control oil chamber that communicates with the hydraulic servo for the predetermined friction element, and is switched into the blocked state in the case where the predetermined friction element is in the disengaged state and into the communicated state in the case where the predetermined friction element is in the completely engaged state or the slip state.