Patent ID: 7086978
Filing Date: 2006-08-08
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
1. A power transmission system for vehicles including a main drive wheel and an auxiliary drive wheel, the system comprising: a main power transmission system configured to transmit main drive power to the main drive wheel via a first train of torque transmitters; and an auxiliary power transmission system configured to transmit auxiliary drive power from an electric motor to the auxiliary drive wheel via an interruptive second train of torque transmitters including: a differential; a combination of a plurality of reduction gears and a clutch disposed between the electric motor and the differential; a casing configured to accommodate the differential, a plurality of gear stages of the plurality of reduction gears and the clutch; and a seal disposed between the casing and a power transmission member provided through the casing, wherein the clutch is disposed in opposition to the electric motor relative to the plurality of reduction gears.