Power transmission device and vehicle with this

Power transmission device that is installed in a vehicle and having a clutch that transmits power from a motor to an axis, comprising: which is driven by a power of the motor to generate a fluid pressure and outputting a first pump; a second pump, which receives a supply of electric power and is driven by this, in order to generate a fluid pressure and outputting; regulates a line pressure generating valve, which is operated by an operating fluid input to an operation input port, and the fluid pressure output from the first pump to generate a line pressure for engaging the clutch; and a switching valve that switches between a first connection state, wherein when the first pump is operating, a signal output from the second pump operating fluid is supplied to the operation input connection of the line pressure generating valve, and a supply of operating fluid from the second pump to the clutch is interrupted and a second connection state switches, wherein when the first pump is not driven, a ...