Test Items
- Testing Based on In-House Developed Dynamometer Motor
Main Components
- Motor, Spindle, Torque sensor, Accelerometer
- Lubrication System, Motor Cooling System
As a core component of electric vehicles, the traction motor plays a vital role in determining driving performance and energy efficiency. Therefore, accurate evaluation and optimization using dynamometers is essential. Through comprehensive testing, automotive manufacturers can measure and assess key parameters such as output power, torque, efficiency, and durability of the traction motor—ensuring high-quality development and reliable performance across various driving conditions. Among KNR Systems testing solutions, the electrically driven NVH Dynamo stands out with world-class specifications of up to 20,000 rpm and 400 kW. It can be used not only for electric vehicle motor testing, but also for a wide range of systems including battery test platforms.
KNR Systems develops its own state-of-the-art dynamo motors, engineered with advanced technology for electric vehicle motor testing. These high-performance machines feature low inertia, low vibration, and high-speed rotation, making them ideal for precise evaluation of EV powertrains. The end rings are reinforced with carbon fiber, effectively resisting deformation caused by strong centrifugal forces at high speeds. Additionally, the bearings utilize an oil mist lubrication system, ensuring both excellent cooling efficiency and enhanced durability.
Motor speed
Max. 15,000 rpm
Rated torque
400Nm @ 3,820 rpm
Torque sensor measuring range
±500Nm
Acceleration sensor measuring range
10g
Motor speed
Max. 20,000 rpm
Rated torque
495Nm @ 4,820 rpm
Torque sensor measuring range
±500Nm
Acceleration sensor measuring range
10g