Power transmission device for hybrid vehicle

Details Power transmission device for hybrid vehicle Power transmission device for hybrid vehicle

2006-04-25

2006-04-25

Martin, David (Department: 2837)

Electricity: motive power systems

Braking

Dynamic braking

C318S009000, C318S011000, C318S034000, C318S051000, C318S067000, C123S200000, C123S319000, C180S337000, C180S338000

Reexamination Certificate

active

07034481

ABSTRACT:
To provide a power transmission device that can increase the range of speed variation between an engine and a power output shaft and effectively achieve reduction in size and cost of the device arrangement. The speed reduction ratios from an engine1to first output shaft4c, 5cof first and second power distributors4, 5are different from each other. A speed change unit10is provided between the first output shaft4cof the first power distributor4and a power output shaft11linked with driving wheels2, 2of the vehicle, and rotation transmission therebetween is achieved at a plurality of stages of speed reduction ratio. The rotation transmission from the first output shaft5cof the second power distributor5to the power output shaft11is achieved via gears20, 15bor rotation transmission mechanisms15, 14of a speed change unit10at a plurality of stages of speed reduction ratio. The vehicle runs at a variable speed using the power from the engine1while motors6and7apply a driving torque or regenerative torque to a second output shaft4sof the first power distributor4and a second output shaft5sof the second power distributor5, respectively.

REFERENCES:
patent: 6007443 (1999-12-01), Onimaru et al.
patent: 6081042 (2000-06-01), Tabata et al.
patent: 6131538 (2000-10-01), Kanai
patent: 6389807 (2002-05-01), Suzuki et al.
patent: 6520879 (2003-02-01), Kawabata et al.
patent: 6563230 (2003-05-01), Nada
patent: 6566826 (2003-05-01), Imai et al.
patent: 11-301291 (1999-11-01), None

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