Patent ID: 7779943
Filing Date: 2010-08-24
Classification: B60K,B60L,B60Y,Y02T

Abstract:
1. An improved battery-electric slow-speed vehicle, whereas the improvement comprising an auxiliary-powertrain, said auxiliary powertrain comprising (i) an engine, (ii) an at least one non-steering rear road-wheel, (iii) a means for controllably coupling rotational force from said engine to said at least one non-steering rear road-wheel, the means comprising a predetermined distal powerwheel operably coupling to a wheel-barrel of the road-wheel, the powerwheel positioning in an auxiliary-driveline operational space, the space urged by a hub-coaxial rear-wheel positioner; and (iv) an auxiliary-drive operational-controller; whereby, the auxiliary powertrain performing compatibly, cooperatively, and controllably with the primary powertrain, the auxiliary powertrain providing opportunity to extend battery life through reduced depths of battery-discharges, while extending vehicle travel-range and preserving many solely-electric-vehicle advantages.