Abstract
Hybrid Electric Vehicles (HEVs) are rapidly gaining popularity due to their potential to reduce
greenhouse gas emissions and fuel consumption. However, the high-power density of HEV motors and
batteries generates substantial heat during operation, which, if not effectively managed, can reduce
system efficiency and shorten component lifespans. Efficient thermal management is critical for ensuring
the optimal performance of HEV powertrains, specifically motors and batteries. Liquid cooling systems,
with their superior heat transfer capabilities, have emerged as an effective solution for managing the
thermal loads in HEV systems.