Review and analysis of thermal management for proton exchange membrane fuel cell hybrid power system

With the advancement of low-carbon process, fuel cell vehicle has emerged as a promising solution for heavy-duty trucks. Thermal management is a crucial factor affecting the performance of fuel cell hybrid power systems (FCHPS). However, there is currently a lack of comprehensive reviews on both component and system level thermal management, especially in the area of oil cooling. To explore the development status and trend of FCHPS thermal management system in fuel cell vehicle, this paper summarizes the FCHPS architecture, reviews the progress in key components and hybrid system thermal management, and evaluates the feasibility of applying oil cooling in FCHPS. It is found that indirect water cooling remains the dominant cooling method for FCHPS, and integrated thermal management systems are a growing focus of research. The application of high-efficiency and energy-saving components, such as heat pumps, has also received attention. Looking forward, integrated thermal management systems based on oil cooling are expected to achieve high efficiency and compactness, and the research on multi-scale combined thermal management of components and systems is an important research direction. This review fills the current gap in thermal management studies of FCHPS and provides valuable insights for the development of advanced thermal management technologies.