Electric Motor Dynamometer Testing Services
At a glance
Millbrook runs high-speed e-motor testing programs in its electric vehicle propulsion systems test facilities in the USA and the UK. It offers dynamometer testing of electric motors for optimization and characterization.


Millbrook prides itself on providing high-speed, high-accuracy measurements from its electric motor test stands/benches and expert test engineers. Its teams in the USA and the UK, in addition to offering electric motor dynamometer testing services for characterization and optimization, run electric drive unit (EDU) test facilities for homologation, development and durability tests.

Electric Motor Dynamometer Testing Services Case Study
A supplier to the heavy duty industry approached Millbrook for high-speed electric motor testing on a dynamometer in order to characterize the design requirements against target torque, speed and power values.
Millbrook provided efficiency measurements from the DC-BUS to mechanical output of the machine, thermal characterization and heat balance and UN/ECE Regulation 85 power measurements with witnessed sign off.
The customer also required testing of a new power electronics and motor pairing; the inverter and motor system were baselined for future development. Millbrook conducted the tests against UN/ECE Regulation 85 and the customer’s power density mapping requirements. It issued a report detailing the efficiency and peak performance of the system.