초록 ▼

A hybrid propulsion system (100) for use in road vehicle operations, which propulsion system includes a power splitting mechanical transmission (108), suitably a three shaft epicyclic gearbox (117, 118, 119), for coupling to a tailshaft (115) of the vehicle; a first drive unit (105) arranged for reg

A hybrid propulsion system (100) for use in road vehicle operations, which propulsion system includes a power splitting mechanical transmission (108), suitably a three shaft epicyclic gearbox (117, 118, 119), for coupling to a tailshaft (115) of the vehicle; a first drive unit (105) arranged for regenerative operation and coupled to the power splitting mechanical transmission (108); a second drive unit (110) arranged for regenerative operation and coupled, independently of said first drive unit, to the power splitting mechanical transmission (108); a non-regenerative third drive unit (113) for coupling, in parallel to said power splitting mechanical transmission, to the tailshaft; and a propulsion control system (122) for coordinating operation of the drive units in accordance with a plurality of predetermined modes corresponding to a drive cycle of the vehicle. Two forms of the invention are disclosed, being suited to non-transit and transit operations, respectively. Methods for the optimal control of the hybrid propulsion system of each form of the invention are also disclosed.

대표청구항 ▼

[ What is claimed is:] [1.] 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 split

[ What is claimed is:] [1.] 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.