Controlling engine coolant fluid temperature

Abstract

Examples of techniques for controlling temperature of a coolant fluid at an inlet of an internal combustion engine are disclosed. In one example implementation, a method includes receiving, by a processing device, total fuel burned data indicating a total amount of fuel burned by the internal combustion engine. The method further includes receiving, by a processing device, engine speed data indicating an engine speed of the internal combustion engine. The method further includes calculating, by the processing device, a radiator flow rate to achieve a temperature set-point at an inlet of the engine based at least in part on the total fuel burned data and the engine speed data. The method further includes adjusting, by the processing device, a radiator flow based at least in part on the radiator flow rate.

1 . A computer-implemented method for controlling a temperature of a coolant fluid at an inlet of an internal combustion engine, the method comprising:
 receiving, by a processing device, total fuel burned data indicating a total amount of fuel burned by the internal combustion engine;   receiving, by the processing device, engine speed data indicating an engine speed of the internal combustion engine; and   calculating, by the processing device, a radiator flow rate to achieve a temperature set point at an inlet of the engine based at least in part on the total fuel burned data and the engine speed data; and   adjusting, by the processing device, a radiator flow based at least in part on the radiator flow rate, wherein adjusting the radiator flow of the coolant fluid further comprises controlling a valve to adjust the radiator flow of the coolant fluid, the valve comprising an inlet connected to an outlet of an engine block and an outlet of an engine head, a first outlet connected to a radiator bypass, and a second outlet connected to a radiator.   
     
     
         2 . The computer-implemented method of  claim 1 , wherein
 adjusting the radiator flow further comprises increasing flow of the coolant fluid to the radiator and decreasing flow of the coolant fluid through the radiator bypass.   
     
     
         3 . The computer-implemented method of  claim 1 , wherein adjusting the radiator flow further comprises decreasing flow of the coolant fluid to the radiator and increasing flow of the coolant fluid through the radiator bypass. 
     
     
         4 . (canceled) 
     
     
         5 . The computer-implemented method of  claim 1 , wherein calculating the radiator flow rate is further based at least in part on a radiator temperature. 
     
     
         6 . The computer-implemented method of  claim 1 , wherein calculating the radiator flow rate is further based at least in part on an engine outlet temperature. 
     
     
         7 . The computer-implemented method of  claim 1 , wherein calculating the radiator flow rate is further based at least in part on an ambient pressure. 
     
     
         8 . A system for controlling temperature of a coolant fluid at an inlet of an internal combustion engine, the system comprising:
 a memory comprising computer readable instructions; and   a processing device for executing the computer readable instructions for performing a method, the method comprising:
 receiving, by the processing device, total fuel burned data indicating a total amount of fuel burned by the internal combustion engine; 
 receiving, by the processing device, engine speed data indicating an engine speed of the internal combustion engine; and 
 calculating, by the processing device, a radiator flow rate to achieve a temperature set point at an inlet of the engine based at least in part on the total fuel burned data and the engine speed data; and 
 adjusting, by the processing device, a radiator flow based at least in part on the radiator flow rate, wherein adjusting the radiator flow of the coolant fluid further comprises controlling a valve to adjust the radiator flow of the coolant fluid, the valve comprising an inlet connected to an outlet of an engine block and an outlet of an engine head, a first outlet connected to a radiator bypass, and a second outlet connected to a radiator. 
   
     
     
         9 . The system of  claim 8 , wherein adjusting the radiator flow further comprises increasing flow of the coolant fluid to the radiator and decreasing flow of the coolant fluid through the radiator bypass. 
     
     
         10 . The system of  claim 8 , wherein adjusting the radiator flow further comprises decreasing flow of the coolant fluid to the radiator and increasing flow of the coolant fluid through the radiator bypass. 
     
     
         11 . (canceled) 
     
     
         12 . The system of  claim 8 , wherein calculating the radiator flow rate is further based at least in part on a radiator temperature. 
     
     
         13 . The system of  claim 8 , wherein calculating the radiator flow rate is further based at least in part on an engine outlet temperature. 
     
     
         14 . The system of  claim 8 , wherein calculating the radiator flow rate is further based at least in part on an ambient pressure. 
     
     
         15 . A computer program product for controlling temperature of a coolant fluid at an inlet of an internal combustion engine, the computer program product comprising:
 a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a processing device to cause the processing device to perform a method comprising:
 receiving, by the processing device, total fuel burned data indicating a total amount of fuel burned by the internal combustion engine; 
 receiving, by the processing device, engine speed data indicating an engine speed of the internal combustion engine; and 
 calculating, by the processing device, a radiator flow rate to achieve a temperature set point at an inlet of the engine based at least in part on the total fuel burned data and the engine speed data; and 
 adjusting, by the processing device, a radiator flow based at least in part on the radiator flow rate, wherein adjusting the radiator flow of the coolant fluid further comprises controlling a valve to adjust the radiator flow of the coolant fluid, the valve comprising an inlet connected to an outlet of an engine block and an outlet of an engine head, a first outlet connected to a radiator bypass, and a second outlet connected to a radiator. 
   
     
     
         16 . The computer program product of  claim 15 , wherein adjusting the radiator flow further comprises increasing flow of the coolant fluid to the radiator and decreasing flow of the coolant fluid through the radiator bypass. 
     
     
         17 . The computer program product of  claim 15 , wherein adjusting the radiator flow further comprises decreasing flow of the coolant fluid to the radiator and increasing flow of the coolant fluid through the radiator bypass. 
     
     
         18 . (canceled) 
     
     
         19 . The computer program product of  claim 15 , wherein calculating the radiator flow rate is further based at least in part on a radiator temperature, an engine outlet temperature, and an ambient pressure.