HaoSi Power's GaN Range-Extending Generator System Certified by CATARC, Set for Debut at Beijing Auto Show

Aurora Bay Technology, a subsidiary of Haos Power, recently announced that its self-developed gallium nitride (GaN)-based range-extended power generation system has passed the China Automotive Technology & Research Center’s (CATARC) “Ultra-High Efficiency Generator System Special Verification.” Test data shows that the system’s GaN embedded-packaged power module motor controller achieves a peak efficiency of 99.79%, while the overall generator system reaches a peak efficiency of 96.57%. Built upon Haos Power’s “Ice Blade” series of embedded GaN power modules, the system features a generator with a ten-layer flat-wire and Umini-pin winding structure. It innovatively adopts a direct-drive design connected to the engine crankshaft, shortening the energy transmission path. The motor controller employs an embedded architecture to reduce current path length, thereby enhancing electrical conversion efficiency and power density. The entire system is highly integrated, with an axial length approximately 20% shorter than conventional solutions, and the controller’s thickness is less than the combined height of two Chinese one-yuan coins. The system’s energy efficiency already meets the 2040 target outlined in the “Energy Saving and New Energy Vehicle Technology Roadmap 3.0.” A methanol-flex-fuel range-extender system incorporating this technology will make its public debut at the Beijing International Automotive Exhibition from April 24 to May 3, 2026.