Preliminary HVAC design for EVs

Conventional ICE vehicles use coolant to capture heat from the engine, dissipating it into the cabin through a heater core, while a belt-driven compressor handles cooling. In EVs, high-voltage heaters and compressors replace these components.

Initially designed for cabin heating and cooling, the system was later integrated to also manage battery heating and cooling. A Restomod HVAC unit, Mitsubishi High Voltage AC compressor, and Webasto High Voltage heater were used in a closed-loop system to regulate the temperature in the cabin.