Patent ID: 8825323

Claim:
A machine control system for use with a machine having an engine and a transmission, the machine control system comprising: a clutch configured to connect an output of the engine with an input of the transmission; a sensor configured to generate an engine speed signal; a controller in communication with the clutch and the sensor, the controller being configured to vary an actuating force of the clutch as a function of the engine speed signal; an operator input device configured to indicate an operator desired reduction in an amount of torque transferred from the engine to the transmission, wherein the controller is in communication with the operator input device and configured to vary the actuating force of the clutch as a function of the operator desired reduction, the operator input device being movable through a range from a neutral position to a maximum displaced position; wherein the controller is configured to vary the actuating force of the clutch such that the actuating force when the operator input device is at a first position within the range is lower for lower engine speeds compared to that for higher engine speeds, and the actuating force when the operator input device is at a second position of greater displacement than the first position is lower for higher engine speeds compared to that for lower engine speeds.