HYBRID DRIVE DEVICE

摘要

When an engine is started by an electric motor in one speed stage of an automatic transmission, lubricating oil is directly supplied to certain friction elements that control slip. A switching valve (50) branches from a lubricating oil passage (J), and is interposed on a second lubricating oil passage (J2) guided to a brake (B-2) that provides slip control when the engine starts or when a battery is charging while traveling at low speed. A hydraulic servo (39) for the brake (B-2) is linked to a control oil chamber (50a) of the switching valve (50), and when an engagement control pressure and a slip control pressure are supplied to the hydraulic servo, the switching valve (50) is switched to a linked state.