Method and system for controlling machine power
AssigneeCaterpillar Inc.
InventorsAndrew N. Schifferer, John D. Baus
Life of this patent
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Abstract
In one aspect, the present disclosure is directed to a method for controlling power distribution. The method includes monitoring at least one parameter associated with a power source including a fuel limit proximity of the power source, generating a control signal based on the at least one parameter, and reducing a load associated with the power source based on a characteristic of the control signal.
Claims17
A system for controlling power distribution, the system comprising:
- a variable displacement hydraulic pump;
- a power source operatively connected to drive the variable displacement hydraulic pump;
- a flow control assembly configured to control an output of the variable displacement hydraulic pump;
- and
- a controller configured to monitor a proximity of a power source parameter to a fuel limit of the power source and regulate operation of the flow control assembly based on the proximity.
A system for controlling power distribution of an engine, the system comprising:
- a hydraulic actuator;
- a variable displacement pump driven by the engine to generate a flow of pressurized fluid directed to move the hydraulic actuator;
- a flow control assembly configured to control an output of the variable displacement pump;
- and
- a controller in communication with the flow control assembly and configured to:
- monitor a load signal associated with the hydraulic actuator and regulate the flow control assembly to adjust an output of the variable displacement hydraulic pump based on the load signal;
- and
- monitor a proximity of an engine parameter to a fuel limit and regulate the flow control assembly to modify the output adjustment of the variable displacement hydraulic pump based on the proximity.
A system for controlling power distribution of an engine, the system comprising:
- an implement;
- a implement actuator configured to move the implement;
- a variable displacement pump driven by the engine to generate a flow of pressurized fluid directed to the implement actuator;
- and
- a controller configured to:
- monitor a load of the implement actuator and determine a corresponding flow adjustment of the variable displacement pump based on the load;
- monitor a proximity of an engine parameter to a fuel limit that will result from implementation of the flow adjustment;
- determine a modification of the flow adjustment based on the proximity;
- and
- implement the modification when the proximity corresponding to the flow adjustment will be less than a threshold amount.
Dependencies are inferred from the claim text.