Patent ID: 7953535
Filing Date: 2011-05-31
Classification: B60K,F16H,Y10T

Abstract:
1. A method of controlling a machine drive having an engine linked to a driveline PTO via a transmission, wherein the transmission has an output and is adapted to selectively provide at least two neutral conditions and the driveline PTO is adapted to shift between a first mode wherein the transmission output is linked to one or more wheels of the machine for movement of the machine, and a second mode wherein the transmission output is linked to an auxiliary device rather than to the one or more wheels of the machine, the method comprising: receiving a request from an operator of the machine to shift the driveline PTO from a current one of the first and second modes to a requested one of the first and second modes; determining whether the current mode is the first or second mode; and automatically modulating the transmission between a first neutral condition and a second neutral condition if the current mode is the first mode and shifting the driveline PTO from the current one of the first and second modes to the requested one of the first and second modes while modulating the transmission between the first neutral condition and the second neutral condition.