Hybrid electric propulsion system

Motor vehicles – Power – Electric

Patent

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Details

180 658, 180 76, 290 1A, 310126, B60L 1112

Patent

active

051727846

ABSTRACT:
A hybrid electric vehicle propulsion system having an external combustion free-piston engine is provided with an integral linear electric current generator and a pulse frequency controller. The system includes a power integration processor, a frequency modulator circuit and a pulse width modulator circuit, the power integration processor controls the frequency modulator circuit and the pulse width modulator circuit to produce both a frequency modulated pulsed current and an auxiliary power current which varies in pulse width. Both the frequency modulated pulsed current and the pulse width modulated auxiliary current are combined to power an electric drive motor having an integral electronic differential. A small auxiliary power source, such as a rechargeable battery pack, is provides the auxiliary current for acceleration and hill climbing power. The external combustion engine may burn any pollution free fuel (such as natural gas, alcohol, propane, etc.) and runs at a constant peak efficiency speed to generate constant frequency electric current from coils integrated into the engine. The generator current is sufficient to propel the vehicle in ordinary driving situations with smooth speed control of the drive motor. The propulsion motor combines one fixed stator, and two axially opposed permanent magnet or induction-type rotors, one for each output propulsion shaft.

REFERENCES:
patent: 887483 (1908-05-01), Ledwinka
patent: 1348539 (1920-08-01), Breitenbach
patent: 2900592 (1958-10-01), Baruch
patent: 3234395 (1966-02-01), Colgate
patent: 3551685 (1970-12-01), Corry
patent: 3675031 (1972-07-01), Lavigne
patent: 3837419 (1974-09-01), Nakamura
patent: 4113045 (1978-09-01), Downing
patent: 4119861 (1978-10-01), Gocho
patent: 4306156 (1981-12-01), Monaco
patent: 4444285 (1984-04-01), Stewart
patent: 4454426 (1984-06-01), Benson
patent: 4511805 (1985-04-01), Boy Marcotte
patent: 4644207 (1987-02-01), Catterfield
patent: 4649283 (1987-03-01), Berchowitz
patent: 4811563 (1989-03-01), Furuishi
patent: 4824149 (1989-06-01), Renchlein
patent: 4924956 (1990-05-01), Deng et al.
patent: 4951769 (1990-08-01), Kawamura
Ayres, Robert U., Alternatives to the Internal Combustion Engine, 1973.
Miner, Richard J., A Status Study of Hybrid and Related Vehicle Projects, May 1990, DOE.
Brusaglino, G., Overview of European Research and Development of Electric Hybrid Vehicles, EVD, Oct. 1988.
Renner, Roy A., An Assessment of Hybrid Electric Propulsion Systems, EPRS, EPRI EM-4700, Sep. 1986.

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