Method for upshifting of a parallel shaft gear

Details Method for upshifting of a parallel shaft gear Method for upshifting of a parallel shaft gear

2007-01-23

2007-01-23

Marmor, Charles A (Department: 3681)

Interrelated power delivery controls, including engine control

Plural engines

Electric engine

C074S329000, C074S340000, C074S664000

Reexamination Certificate

active

10905571

ABSTRACT:
In a method for upshifting a parallel shift transmission having two input shafts, each of which is coupleable via a clutch to the drive shaft of a driving engine, an output shaft, which may be brought into rotationally fixed engagement with the input shafts via different transmission gear sets, and at least one electric machine that is rotationally fixedly connectable to an input shaft for output of a boost torque, which boosts the drive torque of the driving engine, the boost torque produced by the electric machine during the phase in which the speed of the driving engine drops when shifting from an old gear into a new, higher gear is at least approximately replaced by the torque produced by the driving engine as a result of the drop in speed.

REFERENCES:
patent: 6634247 (2003-10-01), Pels et al.
patent: 2002/0189397 (2002-12-01), Sakamoto et al.
patent: 19945473 (2000-04-01), None
patent: 19950679 (2001-04-01), None
patent: 10133695 (2002-03-01), None
patent: 1270301 (2003-01-01), None

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