Caterpillar Inc.

Darshan C Patel

Wesley Thomas Payne

Peter O'Brien

Barry E James

In some implementations, a hydraulic system may include a tank, a hydraulic pump, an actuator, and an unloading valve positioned between the pump and the tank. The hydraulic system may receive one or more inputs associated with the hydraulic system. The hydraulic system may determine, based on the one or more inputs, one or more desired system pressures associated with the hydraulic system. The hydraulic system may proportionally regulate an opening of the unloading valve to operate the hydraulic system at the one or more desired system pressures.

Enhanced electrical control of a hydraulic system

A method of controlling the temperature of a brake arrangement for a machine is disclosed. The method includes providing a flow of pressurized fluid to the brake arrangement and sensing a first temperature of the fluid downstream of the brake arrangement. The method also includes determining a first temperature range for the brake arrangement and determining if the first sensed temperature falls in the first temperature range. The method also includes requesting an adjustment of at least one fluid parameter of the flow of pressurized fluid in response to determining that the first sensed temperature does not fall within the first temperature range such that the sensed temperature moves to the first temperature range.

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Des Plaines, IL, United States of America

Darshan C Patel