Hybrid power transmission with power take-off apparatus

Details Hybrid power transmission with power take-off apparatus Hybrid power transmission with power take-off apparatus

1996-04-29

1997-09-23

Ta, Khoi Q.

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

180 652, 180 696, 74 1586, F16H 372, B60K 100

Patent

active

056698429

ABSTRACT:
A power transmission has an internal combustion engine and motor/generators which are combined through a summing planetary gearing. The planetary gearing cooperates with downstream gearing to provide a hybrid power transmission. A plurality of auxiliary or power take-off (PTO) shafts are included to permit the operation of auxiliary devices, such as main hydraulic pumps, air conditioners or power steering pumps. A fluid operated clutch is incorporated between the engine and the gearing so that the motor/generators can drive the PTO shafts independently of the engine. The main pump fluid output can be directed to engage the clutch when the engine input is desired. The motor/generators are controlled to provide output speed resulting in one member of the gearing being driven at a speed equal to the idle speed of the engine, such that the clutch can be synchronously engaged.

REFERENCES:
patent: 4588040 (1986-05-01), Albright, Jr. et al.
patent: 5492189 (1996-02-01), Kriegler et al.
patent: 5558588 (1996-09-01), Schmidt

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