Patent ID: 7163480
Filing Date: 2007-01-16
Classification: B60K,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
1. A hybrid-electric powertrain for an all-wheel drive vehicle with forward and rearward sets of traction wheels, comprising: an engine; an electric generator; an electric motor; a geared transmission having a first torque delivery element connected drivably to the engine, a second torque delivery element connected drivably to the generator and a torque output element connected drivably to the rearward set of traction wheels; the electric motor being drivably connected to the forward set of traction wheels and being electrically coupled to the generator; a multiple ratio gear unit drivably connecting the torque output element of the geared transmission to the rearward set of traction wheels, whereby mechanical energy is distributed to the rearward set of traction wheels and electrical energy is distributed to the forward set of traction wheels; the multiple ratio gear unit comprising a first element connected to the torque output element of the geared transmission and a second element connected drivably to the rearward set of traction wheels; and a clutch and brake friction element sub-assembly selectively connecting a third element of the multiple ratio gear unit to ground and to another one of the first and second elements of the multiple ratio gear unit, whereby multiple gear ratios for the multiple ratio gear unit are established.