Patent ID: 9719586
Date: 2017-08-01
CPC Classifications: B60W,E02F,F16H

Claim:
1. A method for controlling a machine with a dual path electronically controlled hydrostatic transmission, the method comprising: providing a machine having an engine and an electronically controlled hydrostatic transmission, the electronically controlled hydrostatic transmission including an input device, a first drive system and a second drive system, each of the first drive system and the second drive system having at least one pump and at least one motor, the input device providing a speed setting value for the first drive system and the second drive system; generating at least one command for the at least one pump and the at least one motor of each of the first drive system and the second drive system with a controller; determining a change in the at least one generated command using the controller; determining a ramping parameter controlling the rate of change of the pump displacement to avoid abrupt commands to the said at least one pump based on the speed setting value provided by the input device; applying the determined ramping parameter to the at least one generated command to generate at least one modified command in response to the determination of a change in the at least one generated command; and applying the at least one modified command to the at least one pump and the at least one motor of each of the first drive system and the second drive system.