Systems and methods for genset coolant control

A control device for regulating an outlet coolant temperature of a genset and an inlet coolant temperature of the genset, the control device comprising:

• a non-transitory machine-readable storage medium having instructions stored thereon;
• and
• a processing circuit configured to execute the instructions to:
• determine a load condition of the genset;
• select an operating mode from between a first mode associated with a first load condition and a second mode associated with a second load condition responsive to determining the load condition of the genset, wherein the first mode and the second mode are configured to determine a target inlet coolant temperature using one or more control loops;
• determine, using the selected operating mode, the target inlet coolant temperature using a difference between the target outlet coolant temperature and the outlet coolant temperature;
• and
• regulate the outlet coolant temperature based on the determined target inlet coolant temperature and the inlet coolant temperature by adjusting an operation of one or more coolant valves.

A genset comprising:

• an engine;
• a generator coupleable to a load;
• and
• a cooling system configured to adjust a temperature of the engine, the cooling system comprising:
• a heat exchanger;
• a radiator;
• one or more coolant valves;
• one or more temperature sensors;
• and
• at least one controller configured to regulate an outlet coolant temperature of the genset and an inlet coolant temperature of the genset, the controller comprising:
• a non-transitory machine-readable storage medium having instructions stored thereon;
• and
• a processing circuit configured to execute the instructions to:
• determine a load condition of the genset;
• select an operating mode from between a first mode associated with a first load condition and a second mode associated with a second load condition responsive to determining the load condition of the genset, wherein the first mode and the second mode are configured to determine a target inlet coolant temperature using one or more control loops;
• determine, using the selected operating mode, the target inlet coolant temperature using a difference between the target outlet coolant temperature and the outlet coolant temperature;
• and
• regulate the outlet coolant temperature based on the determined target inlet coolant temperature and the inlet coolant temperature by adjusting an operation of the one or more coolant valves.