Patent ID: 6692395
Filing Date: 2004-02-17
Classification: B60K,F16H

Abstract:
A system for transmitting power from an engine shaft to a PTO shaft, comprising:a transmission having a first input member coupled to the engine shaft, a second input member and an output member coupled to the PTO shaft, the output member having a rotation speed which is a function of a rotation speed of the first and second input members; a variable speed drive unit connected to the second input member; a ground speed sensor generating a ground speed signal; an operator controlled ratio setting unit generating a ratio signal; and a control unit operatively coupled to the variable speed drive unit, the control unit receiving the ground speed signal and the ratio signal, and the control unit generating control signals which cause a rotation speed of the variable speed drive unit to vary so as to maintain a desired ratio between a ground speed and the rotation speed of the output member.