Automotive systems such as seat heaters and EV batteries generate and redistribute heat in complex ways, directly affecting passenger comfort, energy efficiency, and thermal safety. The EKO HF-01S heat flux sensor provides a practical method for evaluating how heat moves through seat surfaces and surrounding vehicle structures. By measuring both the magnitude and direction of heat transfer, HF-01S helps engineers understand thermal behavior that cannot be clearly identified from temperature data alone.
For seat heater evaluation, multiple HF-01S sensors can be installed across the seat back, cushion, and nearby surfaces to map local heat transfer during heater operation. In the case study, heater ON/OFF events produced immediate changes in heat flux at different seat locations, including positive and negative heat-transfer directions even between nearby points. This enables engineers to identify uneven heating, heat loss paths, residual heat behavior, and how effectively heat is delivered toward the passenger.
HF-01S can also be used to study heat transfer near EV battery locations, where cabin heating, battery operation, and vehicle structure interact. Measurements taken on the seat above the battery showed how local heat balance changed during EV operation and after cabin heating was stopped. These insights support improved seat heater design, battery thermal management, cabin comfort optimization, and more efficient use of vehicle heating energy.
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