Electrical control of a hydraulic system
A hydraulic system controller is disclosed. The hydraulic system controller may determine a maximum active circuit pressure of a set of active hydraulic circuits of the hydraulic system, wherein the hydraulic system includes a hydraulic pump to cause fluid to flow throughout the set of active hydraulic circuits; determine a circuit pressure of a hydraulic circuit of the hydraulic system; determine, based on a hydraulic flow command for the hydraulic circuit and the circuit pressure, a desired circuit delta-pressure for the hydraulic circuit; determine, based on the desired circuit delta-pressure and a pressure difference between the maximum active circuit pressure and the circuit pressure, a circuit valve setting for a circuit valve of the hydraulic circuit; and cause a control device to set a position of the circuit valve according to the circuit valve setting.
1. A method for controlling a hydraulic system, comprising:
determining that a hydraulic flow command, for a hydraulic circuit of the hydraulic system, is not associated with a prioritized hydraulic circuit;
determining, after determining that the hydraulic flow command is not associated with a prioritized hydraulic circuit, a desired circuit delta-pressure for the hydraulic circuit based on the hydraulic flow command; and
controlling the hydraulic system based on the desired circuit delta-pressure.
2. The method of claim 1 , further comprising:
determining, based on the desired circuit delta-pressure, a circuit valve setting for a circuit valve of the hydraulic circuit,
wherein controlling the hydraulic system comprises:
causing a control device to set a position of the circuit valve according to the circuit valve setting.
3. The method of claim 1 , further comprising:
determining, based on the desired circuit delta-pressure and based on a flow rate limit associated with the hydraulic circuit, a circuit valve setting for a circuit valve of the hydraulic circuit,
wherein controlling the hydraulic system comprises:
causing a control device to set a position of the circuit valve according to the circuit valve setting.
4. The method of claim 1 , further comprising:
determining an operating condition associated with the hydraulic circuit; and
determining, based on the operating condition, a flow rate limit associated with the hydraulic circuit,
wherein the hydraulic system is controlled further based on the flow rate limit.
5. The method of claim 1 , wherein determining the desired circuit delta-pressure comprises:
determining the desired circuit delta-pressure based on the hydraulic flow command and based on a circuit pressure of the hydraulic circuit.
6. The method of claim 5 , wherein the circuit pressure corresponds to an operating pressure received from a pressure sensor of the hydraulic circuit.
7. The method of claim 1 , wherein the desired circuit delta-pressure is based on a difference between an operating pressure, received from a pressure sensor of the hydraulic circuit, and a desired pressure that is based on the hydraulic flow command.
8. The method of claim 1 , further comprising:
determining the hydraulic flow command based on an operating condition of the hydraulic circuit, the hydraulic system, or a machine that includes the hydraulic system.
9. A hydraulic system controller, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
determine a desired circuit delta-pressure for a hydraulic circuit, of a hydraulic system, based on a hydraulic flow command; and
control, based on the desired circuit delta-pressure, a control device to set a position of a circuit valve of the hydraulic circuit.
10. The hydraulic system controller of claim 9 , wherein the one or more processors are further configured to:
determine, based on the desired circuit delta-pressure, a circuit valve setting for the circuit valve,
wherein the one or more processors, to control the control device, are configured to:
control the control device to set the position of the circuit valve according to the circuit valve setting.
11. The hydraulic system controller of claim 9 , wherein the one or more processors are further configured to:
determine, based on the desired circuit delta-pressure and based on a flow rate limit associated with the hydraulic circuit, a circuit valve setting for the circuit valve,
wherein the one or more processors, to control the hydraulic system, are configured to:
control the control device to set the position of the circuit valve according to the circuit valve setting.
12. The hydraulic system controller of claim 9 , wherein the one or more processors are further configured to:
determine an operating condition associated with the hydraulic circuit; and
determine, based on the operating condition, a flow rate limit associated with the hydraulic circuit,
wherein the hydraulic system is controlled further based on the flow rate limit.
13. The hydraulic system controller of claim 9 , wherein the one or more processors, to determine the desired circuit delta-pressure, are configured to:
determine the desired circuit delta-pressure based on the hydraulic flow command and based on a circuit pressure of the hydraulic circuit.
14. The hydraulic system controller of claim 13 , wherein the circuit pressure corresponds to an operating pressure received from a pressure sensor of the hydraulic circuit.
15. The hydraulic system controller of claim 9 , wherein the desired circuit delta-pressure is based on a difference between an operating pressure, received from a pressure sensor of the hydraulic circuit, and a desired pressure that is based on the hydraulic flow command.
16. The hydraulic system controller of claim 9 , wherein the one or more processors are further configured to:
determine the hydraulic flow command based on an operating condition of the hydraulic circuit, the hydraulic system, or a machine that includes the hydraulic system.
17. A non-transitory computer-readable medium storing a set of instructions, the set of instructions comprising:
one or more instructions that, when executed by one or more processors, cause the one or more processors to:
determine that a hydraulic flow command, for a hydraulic circuit of a hydraulic system, is not associated with a prioritized hydraulic circuit;
determine, after determining that the hydraulic flow command is not associated with a prioritized hydraulic circuit, a desired circuit delta-pressure for the hydraulic circuit based on the hydraulic flow command; and
control the hydraulic system based on the desired circuit delta-pressure.
18. The non-transitory computer-readable medium of claim 17 , wherein the one or more instructions further cause the one or more processors to:
determine an operating condition associated with the hydraulic circuit; and
determine, based on the operating condition, a flow rate limit associated with the hydraulic circuit,
wherein the hydraulic system is controlled further based on the flow rate limit.
19. The non-transitory computer-readable medium of claim 17 , wherein the one or more instructions, that cause the one or more processors to determine the desired circuit delta-pressure, cause the one or more processors to:
determine a desired circuit delta-pressure for the hydraulic circuit based on the hydraulic flow command and based on a pressure associated with the hydraulic circuit.
20. The non-transitory computer-readable medium of claim 19 , wherein the pressure associated with the hydraulic circuit is an operating pressure received from a pressure sensor of the hydraulic circuit.