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US 2010/0161186 A1Published application
Adaptive underspeed control
AssigneeCaterpillar Inc.
InventorsTerrence A. Quinn, Michael K. Oudyn, Igor M. Strashny, Christian Poulet
Life of this patent
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AssigneeCaterpillar Inc.
InventorsTerrence A. Quinn, Michael K. Oudyn, Igor M. Strashny, Christian Poulet
Estimating the term…
A machine (100) includes an engine (102) connected to an implement pump (204) operating an actuator and to a propel pump operating a motor (106). An electronic controller (218) is disposed to receive at least one parameter selected from the group of: a pressure of fluid at the at least one motor (106), a pressure of fluid at the at least one implement actuator, a rate of rotation of the engine (102), a rate of rotation of the at least one motor (106), and a torque output of the engine (102). The electronic controller (218) monitors the at least one parameter for a predetermined period, and determines an operating mode of the machine (100). The electronic controller (218) then adjusts an underspeed setting for the engine (102) based on the operating mode.
A machine having at least one motor operable to propel the machine and to at least one implement actuator, the machine having an engine operative at a speed controlled by an underspeed setting, the machine comprising:
A method for operating a machine having a tractive system and one or more power consuming systems, comprising:
A control algorithm for improving productivity and power utilization of a machine, the machine being propelled by a propel circuit and performing tasks with an implement powered by an implement circuit, the control algorithm being executed within an electronic controller associated with the machine, the electronic controller disposed to receive information from the propel circuit and the implement circuit, the control algorithm performing the computer implemented steps of:
Dependencies are inferred from the claim text.