IPET Systems highlights the I Series integrated propulsion system, overcoming the limitations of traditional battery technology by focusing on maximizing overall propulsion efficiency.
Integrated Shared-Housing Architecture
Traditional Unmanned Aerial Vehicle (UAV) propulsion systems utilize separate motor and ESC modules, which introduce structural weight, external wiring, larger arm profiles, and transmission losses. To address these inefficiencies, an innovative integrated shared-housing architecture has been developed, combining the motor and ESC into a single structural and electrical platform. By utilizing the motor housing as the ESC enclosure, the system volume has been significantly reduced, resulting in a slimmer UAV arm profile. This design delivers lower aerodynamic drag, reduced power consumption during hover and cruise, improved flight efficiency, and enhanced stability in turbulent airflow conditions. Furthermore, integration shortens the electrical connection path, which reduces cable losses, minimizes connector-related failure points, improves power transmission efficiency, and increases long-term reliability.
Advanced Thermal Management
To maintain stable propulsion performance and prevent efficiency loss, winding aging, or shortened operational life from excessive heat, a multi-physics coupled triple-airflow cooling architecture has been implemented. This system integrates three coordinated airflow paths: an air intake flow directing cooling air into the motor assembly, an internal airflow removing heat from internal components, and an external airflow improving heat dissipation around the motor housing.
The cooling architecture features a modular high-density fin design to increase the effective heat transfer area and optimize airflow utilization. An optimized thermal conduction path utilizing a specialized thermal compression structure minimizes interface thermal resistance, allowing heat from the stator windings to transfer rapidly into the cooling system. Combined with a centrifugal fan design, heat extraction performance has been significantly improved.
Simulation-Driven Optimization and Performance Verified
Coupled thermal, fluid, and structural simulations have been used to establish a comprehensive thermal-performance database for continuous optimization. Under a 3500 gf thrust load, continuous operation for 15 minutes has verified a temperature rise of ≤ 56°C, ensuring stable power output and reduced component degradation.
The system delivers a 10,000+ hours service life and provides over two hours of flight endurance on a 10.5 kg-class UAV platform. Engineers and operators are encouraged to explore these technical advancements further.
Read I Series Motors: The Core Power Behind 2+ Hours of Flight Endurance for more information.
