Nexteer Enhances Precision with Sakor’s Advanced Dynamometer Tester

Sakor Technologies has delivered a dynamometer test system to Nexteer Automotive to help with the development of high-speed motors and inverters for hybrid and electric vehicles. Nexteer, specializing in steering and driveline systems, will use this dynamometer to test their new electric vehicle propulsion systems.

The system features a 164kW AccuDyne four-quadrant AC dynamometer, capable of delivering the necessary torque and reaching speeds up to 12,000 rpm. Additionally, it includes a 17kW battery simulator with ±500 V DC and 500A capacity. The setup can be upgraded later to handle higher speeds and power densities.

Designed specifically for testing electric vehicle motors, the system is automated by Sakor’s DynoLab test automation controller. This allows engineers and technicians to devise and run complex test procedures easily, without needing to learn programming. Thanks to the menu-driven interface, operators can quickly set up and execute tests.

The dynamometer excels at both driving and braking the test device, providing full torque even at zero speed. It features regenerative, non-resistive power absorption with 360Nm constant torque from stall to 4356 rpm and maintains a constant power of 164kW from 4356 to 12,000 rpm for continuous operation.

Randal Beattie, the president of Sakor, emphasizes that this new system is invaluable for validating designs and assessing the performance and durability of different motors and inverters. It will aid in designing hybrid and electric vehicle drivetrains that maximize efficiency and power density while optimizing the use of limited space.

Sakor Technologies has been in the business for 35 years, developing automated test systems for various industries including automotive, military, aerospace, marine, and more.