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Science and Technology Partnerships and Outreach Directorate

System for cooling hybrid vehicle electronics, method for cooling hybrid vehicle electronics (IN-14-005)

Efficient and low cost subcooled boiling cooling system designed for applications in hybrid electric vehicles and high-density power electronics
Intellectual Property Available to License
US Patent 9,826,666
  • System for cooling hybrid vehicle electronics, method for cooling hybrid vehicle electronics

The invention provides a single radiator cooling system for use in hybrid electric vehicles, the system comprising a surface in thermal communication with electronics, and subcooled boiling fluid contacting the surface. The invention also provides a single radiator method for simultaneously cooling electronics and an internal combustion engine in a hybrid electric vehicle, the method comprising separating a coolant fluid into a first portion and a second portion; directing the first portion to the electronics and the second portion to the internal combustion engine for a time sufficient to maintain the temperature of the electronics at or below 175° C.; combining the first and second portion to reestablish the coolant fluid; and treating the reestablished coolant fluid to the single radiator for a time sufficient to decrease the temperature of the reestablished coolant fluid to the temperature it had before separation.