Patent ID: 7841432
Filing Date: 2010-11-30
Classification: B60K,B60L,F02N,F03C,F04B,Y02T

Abstract:
1. A hybrid electro-hydraulic drive system for a motor vehicle having at least one pair of drive wheels, said drive system comprising: a hydraulic transmission including a first hydraulic machine and at least one second hydraulic machine drivingly mechanically connected to at least one of said drive wheels of said motor vehicle for driving thereof; said first hydraulic machine hydraulically connected to said at least one second hydraulic machine for selectively supplying hydraulic fluid under pressure to said at least one second hydraulic machine so as to hydraulically drive said at least one second hydraulic machine; said at least one second hydraulic machine being a reversible hydraulic pump/motor unit capable to function both as a hydraulic pump and a hydraulic motor; an electric motor/generator operatively mechanically connected to said first hydraulic machine; and at least one energy storage device operable to store and release one of a hydraulic fluid energy and an electrical energy; said at least one energy storage device operatively connected to one of said hydraulic transmission and said electric motor/generator.