Patent ID: 6170587
Filing Date: 2001-01-09
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
A hybrid propulsion system for use in vehicle operations, said propulsion system comprising:(a) a power splitting mechanical transmission for coupling to a final drive of the vehicle;(b) a first drive unit arranged for regenerative operation and coupled to the power splitting mechanical transmission;(c) a second drive unit arranged for regenerative operation and coupled, independently of said first drive unit, to the power splitting mechanical transmission;(d) a non-regenerative third drive unit arranged in parallel to said power splitting mechanical transmission, for coupling to the final drive; and(e) propulsion control means for coordinating operation of the drive units in accordance with a plurality of predetermined modes corresponding to a driving cycle of said vehicle;wherein each of the first, second and third drive units includes a different type of energy storage means.