System and method for controlling power in machine having electric and/or hydraulic devices

A method for controlling power in a machine comprising an electric device configured to provide electric power and consume electric power, and a hydraulic device configured to provide hydraulic power and consume hydraulic power, the method comprising:

• receiving, via a controller, request signals indicative of requested operation of the electric and hydraulic devices;
• receiving, via the controller, operation signals from the electric and hydraulic devices, the operation signals being indicative of a status of the electric and hydraulic devices;
• determining, via the controller, a level of power to be provided or consumed by the electric and hydraulic devices based on the request signals, the operation signals, and a control strategy for controlling electric and hydraulic power for the machine;
• and
• providing, via the controller, control signals for controlling operation of the electric and hydraulic devices,
• wherein the control strategy includes subsystem controls and a supervisory control,
• wherein the subsystem controls include an electric subsystem control for controlling operation of the electric device and a hydraulic subsystem control for controlling operation of the hydraulic device,
• wherein the subsystem controls are configured to provide range signals for the electric and hydraulic devices to the supervisory control, the range signals being indicative of a range of acceptable electric and hydraulic power levels associated with operation of the electric and hydraulic devices, and
• wherein the supervisory control is configured to receive the range signals from the subsystem controls and determine the control signals for controlling operation of the electric and hydraulic devices based on the operation signals, the range signals, and the request signals indicative of requested operation of the electric and hydraulic devices.

A machine comprising:

• a chassis;
• an operator interface for controlling operation of the machine;
• an electric device coupled to the chassis;
• a hydraulic device coupled to the chassis;
• and
• a controller configured to:
• receive request signals indicative of requested operation of the electric and hydraulic devices;
• receive operation signals from the electric and hydraulic devices, the operation signals being indicative of a status of the electric and hydraulic devices;
• determine a level of power to be provided or consumed by the electric and hydraulic devices based on the request signals, the operation signals, and a control strategy for controlling electric and hydraulic power for the machine;
• and
• provide control signals for controlling operation of the electric and hydraulic devices,
• wherein the control strategy comprises subsystem controls and a supervisory control,
• wherein the subsystem controls include an electric subsystem control for controlling operation of the electric device and a hydraulic subsystem control for controlling operation of the hydraulic device,
• wherein the subsystem controls are configured to provide range signals for the electric and hydraulic devices to the supervisory control, the range signals being indicative of a range of acceptable electric and hydraulic power levels associated with operation of the electric and hydraulic devices, and
• wherein the supervisory control is configured to receive the range signals from the subsystem controls and determine the control signals for controlling operation of the electric and hydraulic devices based on the operation signals, the range signals, and the request signals indicative of requested operation of the electric and hydraulic devices.