Parallel hybrid drivetrain

Details Parallel hybrid drivetrain Parallel hybrid drivetrain

1998-02-05

2000-08-29

Wright, Dirk

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

130 653, B60K 4128

Patent

active

061100668

ABSTRACT:
A hybrid vehicle includes an internal combustion engine, an electric motor/generator and a battery. The drivetrain includes a planetary gear in which the engine is coupled to the sun gear, the motor/generator to the ring gear and the vehicle wheels to the carrier of the planetary. A controller switches the vehicle between electric, assist, charge and regenerative modes of operation and substantially decouples the engine speed from the vehicle speed, enabling the engine to operate at peak efficiency. Additional overdrives are included to enable the engine to operate at optimum speed in the various modes of operation.

REFERENCES:
patent: 3566717 (1971-03-01), Berman et al.
patent: 4305254 (1981-12-01), Kawakatsu et al.
patent: 4407132 (1983-10-01), Kawakatsu et al.
patent: 4470476 (1984-09-01), Hunt
patent: 5433282 (1995-07-01), Moroto et al.
patent: 5643119 (1997-07-01), Yamaguchi et al.

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