Featured Product
This Week in Quality Digest Live
Metrology Features
Bryan Christiansen
Calibration is the key to accurate measurement
David L. Chandler
Greater sensitivity and speed for industrial inspection, airport security, and communications
Tim Mouw
Visual evaluation isn’t enough
NIST
Breakthrough could help Nobel-winning tech measure distances and timing with pinpoint precision
S. Heather Duncan
Getting the most out of X-ray computed tomography

More Features

Metrology News
High accuracy to +/– 0.00005 in. and IP67 protection from hostile shop environments
Specially designed for automated SMT/SMD assembly and solder reflow mounts
Complete NDT solution measures thickness loss on corroded, industrial, complex geometry
Eastern Applied Research now has ISO 17034 certification in addition to ISO/IEC 17025
Features include flexible installation and fast measurement
Approved for use in Class 1, Zone 0, and Zone 2 locations
Guidance for deploying digital twins safely and securely

More News

Quality Digest

Metrology

Dynamometer System for Testing Electric Vehicle Motors and Inverters

System will be used to test Nexteer Automotive’s new line of EV propulsion systems

Published: Tuesday, August 23, 2022 - 11:01

(SAKOR: Owossso, MI) -- SAKOR Technologies, a recognized leader in the area of high-performance dynamometer systems, announces that it recently provided Nexteer Automotive with a dynamometer test system designed to test high speed motors and inverters in hybrid and electric vehicle designs. Nexteer, a multibillion-dollar global steering and driveline business, will use the dynamometer system to test its new line of complete electric vehicle propulsion systems.

The system will feature a 164 kilowatt (kW) AccuDyne four quadrant AC dynamometer to provide the required torque and maximum speed of 12,000 revolutions per minute (rpm). The test system also includes a 175 kW, ±500 Vdc, 500 amp battery simulator. The system can be easily upgraded at a later date to support higher speeds and greater power densities if future designs require it.

The dynamometer and other subsystems are configured for electric vehicle motor testing and the entire system will be automated by SAKOR's DynoLAB test automation controller, a powerful system that enables test engineers and/or technicians to design and implement complex test procedures without the need to learn a programming language. Operators can quickly configure and run tests using the easy to use, menu driven interface.

The dynamometer is capable of full bi-directional braking or driving of the device under test. It can also provide full rated torque at stall (zero speed). The dynamometer features regenerative, non-resistive, power absorption, with 360 newton meters (Nm) constant torque from stall to 4,356 rpm. It offers a constant power of 164 kW from 4,356 to 12,000 rpm (continuous duty).

“This new system will be extremely useful for performing design validation, as well as determining performance, and durability characteristics of various motor and inverter designs,” says Randal Beattie, president of SAKOR. “It will contribute to understanding of how to design hybrid and electric vehicle drive trains that maximize efficiency and power density while making the best use of limited physical space.”

Discuss

About The Author

Quality Digest’s picture

Quality Digest

For 40 years Quality Digest has been the go-to source for all things quality. Our newsletter, Quality Digest, shares expert commentary and relevant industry resources to assist our readers in their quest for continuous improvement. Our website includes every column and article from the newsletter since May 2009 as well as back issues of Quality Digest magazine to August 1995. We are committed to promoting a view wherein quality is not a niche, but an integral part of every phase of manufacturing and services.