Curtis Dynamometer Services

Curtis Instruments provides a comprehensive set of expert dynamometer services to motor speed controller/inverter customers, in-house in our major engineering centers. OEM customers can rely on Curtis EV specialists to perform these critical services quickly, efficiently, and accurately. EV motor and vehicle manufacturers benefit from decades of Curtis EV expertise.

Curtis has full-time, dedicated staff for dynamometer services and a complete set of state-of-the-art equipment, including:

• High accuracy and precision measurement devices from HBM, Himmelstein, LEM, and Yokogawa.
• Regulated power supplies allow stiff voltage control or battery emulation.
• Many dynamometers of different ranges available so that Curtis can optimize measurements for motors of widely varying characteristics.
  - Max torque ratings from 10Nm to 1800Nm
  - Max speeds to 15000rpm
  - 12V to 850V DC bus voltage
• Liquid or air motor and controller cooling

Curtis Dynamometer Services Include:

Stage 1: Motor/Controller Matching ▶

Stage 2: Performance Measurements
(Torque-Speed Curves) ▶

Stage 3: Extended Performance Measurements
(Efficiency Contour Curves) ▶

Stage 4: PMAC Motor Analysis ▶

Additional Services ▶