Method and system for the reduction of the jerk caused by...

Details Method and system for the reduction of the jerk caused by... Method and system for the reduction of the jerk caused by...

2008-05-13

2008-05-13

Pang, Roger (Department: 3681)

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

C477S050000, C475S209000

Reexamination Certificate

active

07371204

ABSTRACT:
A method and a system for reducing a jerk produced by the range shift of a transmission with a power division arrangement. The transmission includes a variable speed drive in the form of a continuously variable transmission, and a pair of planetary gear sets and a pair of shift clutches to enable power to be divided between two branches within the transmission. During a range shift between two operating ranges the variable speed drive is acted upon by a short-term transmission ratio adjustment impulse in such a way that a cancellation jerk caused thereby the adjustment impulse weakens the jerk caused by the range shift.

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www.worldingo.com, english translation of DE19642503, Jan. 25, 2007.

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