Fluid delivery system

A system for delivering a fluid in a machine, the system comprising:

• a main line;
• a pump configured to provide a flow of the fluid via the main line;
• a first valve in fluid communication with the flow of fluid provided by the pump via a first fluid connection disposed in the main line downstream of the pump, wherein the first valve is configured to move between a first position and a second position;
• a check valve in fluid communication with the pump and disposed downstream of the first fluid connection to the first valve;
• at least one accumulator disposed downstream of the check valve to receive fluid from the pump via the main line, wherein the at least one accumulator is associated with a brake of the machine;
• an auxiliary system for receiving the flow of fluid from the pump via a second fluid connection disposed in the main line upstream of the check valve, wherein the auxiliary system comprises a traction control system employing a hydraulically operated cross axle differential;
• and
• a control unit communicably coupled to the first valve and the auxiliary system, and configured to:
• receive a signal indicative of a fluid demand from the auxiliary system;
• and
• control the first valve, selectively, in the first position to limit the flow of the fluid from the pump to the auxiliary system, and in the second position to allow the flow of the fluid from the pump to the auxiliary system based on the received signal, wherein the check valve limits a flow of a fluid from the at least one accumulator to the auxiliary system;
• a third valve arranged between the second fluid connection and the auxiliary system and communicably coupled to the control unit, wherein:
• a working pressure of the auxiliary system is lower than a working pressure of the at least one accumulator;
• and
• the third valve is configured to move in a first position to limit the flow of the fluid from the pump to the auxiliary system, and in a second position to allow the flow of fluid from the pump to the auxiliary system based on the received auxiliary fluid demand signal indicative of the fluid demand from the auxiliary system,
• an orifice disposed in the main line downstream of the second fluid connection to the auxiliary system and upstream of the check valve and the first fluid connection to the first valve;
• and
• a pressure sensor in fluid communication with the at least one accumulator and communicably coupled to the control unit, and configured to generate an accumulator pressure signal indicative of a pressure of the fluid in the at least one accumulator, wherein the control unit is further configured to:
• receive the signal indicative of the pressure from the pressure sensor;
• and control the first valve, selectively, in the first position to limit the flow of the fluid from the pump to the at least one accumulator, and in the second position to allow the flow of fluid from the pump to the at least one accumulator based on the received accumulator pressure signal.