Patent ID: 8652008

Claim:
A power transmission apparatus that is mounted to a vehicle that includes a motor, the power transmission apparatus transmits power from the motor to an axle through a friction engagement element, the power transmission apparatus comprising: a mechanical pump that uses the power from the motor to pressure-feed fluid to a fluid pressure servo for the friction engagement element and pressure-feed fluid to a component to be lubricated; an electric pump that receives a supply of electricity and pressure-feeds fluid to the fluid pressure servo of the friction engagement element; a lubrication supply passage that is connected to a flow passage, the lubrication supply passage extending from the electric pump to the fluid pressure servo and fluid in the flow passage is supplied to the component to be lubricated via the lubrication supply passage; and a first valve that switches between opening and closing the lubrication supply passage, wherein during a stop of the motor, the first valve: closes the lubrication supply passage so as to supply fluid from the electric pump to the fluid pressure servo when a shift lever is shifted to a driving position, and opens the lubrication supply passage so as to supply fluid from the electric pump to the component to be lubricated when the shift lever is shifted to a neutral position.