System and method for controlling auxiliary system of work machine

Abstract

A system for controlling an auxiliary system of a work machine includes a controller including at least one memory and at least one processor. The at least one processor is configured to determine a current amount of power available at the battery system, determine a requested power consumption of the auxiliary system, and an expected power consumption of the auxiliary system, compare each of the current amount of power available with a threshold amount of power for the battery system, the requested power consumption with the current amount of power available, and the expected power consumption with the current amount of power available, and adjust, based on the comparison, an operating parameter of one or more auxiliary components of the auxiliary system to reduce power draw by the auxiliary system from the battery system.

What is claimed is: 
     
         1 . A system for controlling an auxiliary system of a work machine, wherein the auxiliary system receives a supply of operating power from a battery system of the work machine, the system comprising: 
 a controller including at least one memory and at least one processor in communication with the at least one memory, the at least one processor is configured to: 
 determine a current amount of power available at the battery system; 
 determine a requested power consumption of the auxiliary system; 
 determine an expected power consumption of the auxiliary system; 
 compare each of the current amount of power available with a threshold amount of power for the battery system, the requested power consumption with the current amount of power available, and the expected power consumption with the current amount of power available, wherein the threshold amount of power is prestored in the at least one memory; and 
 adjust, if the current amount of power available is lesser than the threshold amount of power for the battery system, the requested power consumption is greater than the current amount of power available, and/or the expected power consumption is greater than the current amount of power available, an operating parameter of one or more auxiliary components of the auxiliary system to reduce power draw by the auxiliary system from the battery system, wherein the auxiliary system includes a thermal management system, a power conversion system, a traction system, and/or a hydraulic system. 
   
     
     
         2 . The system of  claim 1  further comprising at least one sensor associated with a machine component of the work machine, wherein the machine component is operated by the auxiliary system, wherein the at least one sensor is configured to generate an input signal indicative of a current operating value of the machine component that is being operated by the auxiliary system, wherein the at least one sensor is in communication with the at least one processor, and wherein the at least one processor is configured to receive the input signal to determine the requested power consumption of the one or more auxiliary components. 
     
     
         3 . The system of  claim 2 , wherein the at least one sensor includes a temperature sensor, a pressure sensor, a speed sensor, and/or a position sensor. 
     
     
         4 . The system of  claim 1 , wherein, when the auxiliary system includes the thermal management system, the operating parameter of the one or more auxiliary components includes a minimum temperature setpoint as provided by the thermal management system, a maximum temperature setpoint as provided by the thermal management system, a speed range of one or more blowers of the thermal management system, a speed range of one or more motors of the thermal management system, and/or a speed range of one or more pumps of the thermal management system. 
     
     
         5 . The system of  claim 1 , wherein, when the auxiliary system includes the thermal management system, the at least one processor is further configured to activate a passive cooling technique to cool one or more machine components of the work machine if the current amount of power available is lesser than the threshold amount of power for the battery system, the requested power consumption is greater than the current amount of power available, and/or the expected power consumption is greater than the current amount of power available. 
     
     
         6 . The system of  claim 1 , wherein, when the auxiliary system includes the traction system, the operating parameter of the one or more auxiliary components includes a speed range of a traction motor of the traction system. 
     
     
         7 . The system of  claim 1 , wherein, when the auxiliary system includes the hydraulic system, the operating parameter of the one or more auxiliary components includes a pressure range of one or more hydraulic actuators of the hydraulic system, a speed range of one or more motors of the hydraulic system, and/or a speed range of one or more pumps of the hydraulic system. 
     
     
         8 . A work machine comprising: 
 a battery system;   an auxiliary system that operates based on receipt of a supply of operating power from the battery system, wherein the auxiliary system includes a thermal management system, a power conversion system, a traction system, and/or a hydraulic system; and    a system for controlling the auxiliary system, the system including: 
 a controller including at least one memory and at least one processor in communication with the at least one memory, the at least one processor is configured to: 
 determine a current amount of power available at the battery system; 
 determine a requested power consumption of the auxiliary system; 
 determine an expected power consumption of the auxiliary system; 
 compare each of the current amount of power available with a threshold amount of power for the battery system, the requested power consumption with the current amount of power available, and the expected power consumption with the current amount of power available, wherein the threshold amount of power is prestored in the at least one memory; and 
 adjust, if the current amount of power available is lesser than the threshold amount of power for the battery system, the requested power consumption is greater than the current amount of power available, and/or the expected power consumption is greater than the current amount of power available, an operating parameter of one or more auxiliary components of the auxiliary system to reduce power draw by the auxiliary system from the battery system, wherein the auxiliary system includes a thermal management system, a power conversion system, a traction system, and/or a hydraulic system. 
 
   
     
     
         9 . The work machine of  claim 8 , wherein the system further includes at least one sensor associated with a machine component of the work machine, wherein the machine component is operated by the auxiliary system, wherein the at least one sensor is configured to generate an input signal indicative of a current operating value of the machine component that is being operated by the auxiliary system, wherein the at least one sensor is in communication with the at least one processor, and wherein the at least one processor is configured to receive the input signal to determine the requested power consumption of the one or more auxiliary components. 
     
     
         10 . The work machine of  claim 9 , wherein the at least one sensor includes a temperature sensor, a pressure sensor, a speed sensor, and/or a position sensor. 
     
     
         11 . The work machine of  claim 8 , wherein, when the auxiliary system includes the thermal management system, the operating parameter of the one or more auxiliary components includes a minimum temperature setpoint as provided by the thermal management system, a maximum temperature setpoint as provided by the thermal management system, a speed range of one or more blowers of the thermal management system, a speed range of one or more motors of the thermal management system, and/or a speed range of one or more pumps of the thermal management system. 
     
     
         12 . The work machine of  claim 8 , wherein, when the auxiliary system includes the thermal management system, the at least one processor is further configured to activate a passive cooling technique to cool one or more machine components of the work machine if the current amount of power available is lesser than the threshold amount of power for the battery system, the requested power consumption is greater than the current amount of power available, and/or the expected power consumption is greater than the current amount of power available. 
     
     
         13 . The work machine of  claim 8 , wherein, when the auxiliary system includes the traction system, the operating parameter of the one or more auxiliary components includes a speed range of a traction motor of the traction system. 
     
     
         14 . The work machine of  claim 8 , wherein, when the auxiliary system includes the hydraulic system, the operating parameter of the one or more auxiliary components includes a pressure range of one or more hydraulic actuators of the hydraulic system, a speed range of one or more motors of the hydraulic system, and/or a speed range of one or more pumps of the hydraulic system. 
     
     
         15 . A method for controlling an auxiliary system of a work machine, wherein the auxiliary system receives a supply of operating power from a battery system of the work machine, the method comprising: 
 determining, by at least one processor of a controller, a current amount of power available at the battery system;   determining, by the at least one processor, a requested power consumption of the auxiliary system;   determining, by the at least one processor, an expected power consumption of the auxiliary system;   comparing, by the at least one processor, each of the current amount of power available with a threshold amount of power for the battery system, the requested power consumption with the current amount of power available, and the expected power consumption with the current amount of power available, wherein the threshold amount of power is prestored in at least one memory of the controller, and wherein the at least one memory is in communication with the at least one processor; and   adjusting, by the at least one processor, an operating parameter of one or more auxiliary components of the auxiliary system to reduce power draw by the auxiliary system from the battery system if the current amount of power available is lesser than the threshold amount of power for the battery system, the requested power consumption is greater than the current amount of power available, and/or the expected power consumption is greater than the current amount of power available, wherein the auxiliary system includes a thermal management system, a power conversion system, a traction system, and/or a hydraulic system.   
     
     
         16 . The method of  claim 15  further comprising: 
 generating, by at least one sensor associated with a machine component of the work machine, an input signal indicative of a current operating value of the machine component, wherein the at least one sensor is in communication with the at least one processor, and wherein the machine component is operated by the auxiliary system; and 
 receiving, by the at least one processor, the input signal to determine the requested power consumption of the one or more auxiliary components. 
 
     
     
         17 . The method of  claim 15 , wherein, when the auxiliary system includes the thermal management system, the step of adjusting, by the at least one processor, the operating parameter of the one or more auxiliary components further includes adjusting a minimum temperature setpoint as provided by the thermal management system, a maximum temperature setpoint as provided by the thermal management system, a speed range of one or more blowers of the thermal management system, a speed range of one or more motors of the thermal management system, and/or a speed range of one or more pumps of the thermal management system. 
     
     
         18 . The method of  claim 15 , wherein, when the auxiliary system includes the thermal management system, the step of adjusting, by the at least one processor, the operating parameter of the one or more auxiliary components further includes activating a passive cooling technique to cool one or more machine components of the work machine. 
     
     
         19 . The method of  claim 15 , wherein, when the auxiliary system includes the traction system, the step of adjusting, by the at least one processor, the operating parameter of the one or more auxiliary components further includes adjusting a speed range of a traction motor of the traction system. 
     
     
         20 . The method of  claim 15 , wherein, when the auxiliary system includes the hydraulic system, the step of adjusting, by the at least one processor, the operating parameter of the one or more auxiliary components further includes adjusting a pressure range of one or more hydraulic actuators of the hydraulic system, a speed range of one or more motors of the hydraulic system, and/or a speed range of one or more pumps of the hydraulic system.