Secondary cooling system for control modules

A cooling system comprising:

• a fluid tank containing a fluid;
• a solute reservoir disposed within the fluid tank and containing an endothermic solute;
• a thermally managed control module having a coolant channel extending through the thermally managed control module and the coolant channel configured to receive a coolant;
• and
• an actuator configured to, when a temperature of the thermally managed control module is greater than a predetermined temperature, release the endothermic solute from the solute reservoir into the fluid tank and cause the endothermic solute to mix with the fluid to create a second coolant via an endothermic reaction, and the second coolant enters the thermally managed control module via a coolant supply channel.

A cooling system comprising:

• a fluid tank at least partially filled with a fluid;
• the fluid has a fluid temperature;
• a thermally managed control module disposed within the fluid tank;
• a coolant channel extending through the fluid tank and configured to receive a coolant to cool the fluid in the fluid tank;
• and
• an actuator configured to, when the fluid temperature of the fluid is greater than a predetermined temperature, cool the fluid temperature to less than the predetermined temperature by at least one of evaporating the fluid and mixing the fluid with an endothermic solute.