Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Motors electrically connected in cascade or tandem
Patent
1993-02-26
1994-09-06
Roskoski, Bernard
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Motors electrically connected in cascade or tandem
318 35, 318 51, 318 60, 318 67, 318 87, 318139, 318140, 318150, 318161, 318432, 318803, H02P 767
Patent
active
053451546
ABSTRACT:
A heat engine operates an alternator that supplies electrical power to an electric continuously variable transmission for driving at least one ac motor through a differential to multiple wheels or to multiple independent ac wheel motors in an automobile, bus or truck. A heat engine control operates in a closed-loop power mode and decouples heat engine speed from motor speed, allowing the heat engine to produce required power at an operating speed and throttle position, or fuel injector duty cycle, that maximizes fuel economy and minimizes engine emissions. An energy storage unit (e.g., a battery, flywheel, ultracapacitor, superconducting magnetic energy storage device, or combination thereof) provides electrical energy to the electric drive system during vehicle accelerations and further reduces peak power demands on the heat engine. Advantageously, energy is recovered during vehicle deceleration and braking; and the recovered energy is used to recharge the energy storage unit. Emissions during cold starting and idling are minimized by a closed-loop temperature-controlled catalyst electric heater which is operated by the battery or the alternator.
REFERENCES:
patent: 3745441 (1973-07-01), Soffer et al.
patent: 4187436 (1980-02-01), Etienne
patent: 4495451 (1985-01-01), Barnard
patent: 4631455 (1986-12-01), Taishoff
patent: 5166593 (1992-11-01), De Doncker et al.
Hybrid Vehicle Program Final Report, Contract No. 955190, General Electric Corporate Research and Development, Nov. 30, 1983, SRD-83-031.
Technical Note: New Engine for Saab 900, International Journal of Vehicle Design, vol. 10, 1989, pp. 262-267.
R. D. King et al., "High-Performance ETX-11 70-hp Permanent Magnet Motor Electric Drive System", Electric Vehicle Assoc. of Canada, Toronto, Ontario, Canada, Nov. 13-16, 1988.
Breedlove Jill M.
General Electric Company
Martin David
Roskoski Bernard
Snyder Marvin
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