Electric hybrid vehicle and method of controlling it

Details Electric hybrid vehicle and method of controlling it Electric hybrid vehicle and method of controlling it

1990-06-06

1992-01-14

Pellinen, A. D.

Prime-mover dynamo plants

Traction

290 50, F02B 7300, B60L 1100

Patent

active

050813650

ABSTRACT:
A method of operating a vehicle having an electric hybrid power system comprising a battery powered electric motor connected to drive the wheels of the vehicle and a combustion engine which may be releasably coupled mechanically to the electric motor. When so coupled the combustion engine may drive the vehicle and the electric motor may act as a generator to maintain a desired charge level in the batteries. In operation the power train is automatically controlled by a process controller to produce maximum fuel economy for the engine and to maintain the batteries at an acceptable charge level. Means are provided to apply the combined power of the electric motor and the combustion engine to the drive wheels for short duration peaking power. Means are also provided whereby the combustion engine may drive the electric motor to function as a generator and charge the batteries when the vehicle is stationary.

REFERENCES:
patent: 3888325 (1975-06-01), Reinbeck
patent: 3904883 (1975-09-01), Horwinski
patent: 4305254 (1981-12-01), Kawakatsu et al.

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