Patent ID: 11946225
Assignee: CATERPILLAR INC.
Field: Civil engineering (Other fields)
Classification: CPC E  F | IPC E  F

Claim 21:
22. The machine of claim 20, further comprising:
a first pressure sensor configured to determine a first pressure of fluid on a first side of the pump;
a second pressure sensor configured to determine a second pressure of the fluid on a second side of the pump;
an electric motor speed sensor configured to determine a speed of the first electric motor and to generate a signal indicative of the determined speed of the first electric motor,
wherein the controller is communicatively coupled to the first and second pressure sensors and to the electric motor speed sensor and further configured to:
determine a pressure drop across the pump based on a difference between the first and second pressures;
determine, based at least in part on an efficiency map for the pump, the pressure drop along a range of speeds including the determined speed of the first electric motor to identify a corresponding range of pump displacements; and
select, as the target displacement for the second pump, a pump displacement in the range of pump displacements that corresponds to the greatest efficiency.