姐迷：Comparative Summary of Test Data (Inferred) While specifi

Comparative Summary of Test Data (Inferred)

While specific numerical test data comparing an iBEE motor to a rare earth motor directly isnt widely available, the reported characteristics suggest the following:

Feature/Metric	iBEE Motor (Magnet-Free EESM)	Rare Earth Motor (PMSM)
Power Efficiency	Comparable to PMSMs, especially for peak power and efficiency.	High power density and excellent efficiency, especially at variable loads.
Torque Density	Aims to match PMSMs, but might require different design optimization.	High torque density, compact for given output.
Materials	No rare earth elements, uses copper coils and electrical steel.	Requires rare earth elements (neodymium, dysprosium).
Environmental Impact	Significantly lower carbon footprint (up to 40% reduction).	Higher environmental impact due to rare earth mining/processing.
Cost	Potentially lower BOM cost due to no rare earths.	Higher material cost due to expensive rare earths.
Supply Chain	Less susceptible to supply chain disruptions or geopolitical issues.	Vulnerable to supply chain disruptions and price volatility.
Thermal Management	Simpler; no risk of demagnetization at high temperatures.	Critical to prevent demagnetization at high temperatures.
Durability/Maintenance	Potentially higher durability due to fewer wear parts.	Robust, but permanent magnets can be prone to demagnetization if overloaded.
Control Complexity	More complex control systems required for excitation.	Simpler control of the magnetic field (inherent in magnets).