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SAKOR Technologies, Okemos, MI, offers the Accudyne™ family of AC Motoring Dynamometers that are compatible with a range of testing applications including conventional engine and power-train systems, hybrid vehicle drives, electric motors, and rotary components, such as alternators, generators, pumps, and compressors. Accudyne dynamometers are available in sizes ranging from fractional to over 2,000 horsepower, and offers speeds in excess of 30,000 rpm. Modern vector drive technology allows the Accudyne system to provide 4-quadrant capability, with crossover between motoring and loading modes. It also offers speed and torque control in low speed applications where full torque can be applied all the way to stall (zero speed).

The Accudyne can simulate the inertia of the target device, eliminating the need for adding physical weights and flywheels to the test system. Utilizing DSP technology, the Accudyne can simulate the firing pulses of a wide variety of engines. It can perform real-world testing of drive-trains and auxiliary components in a laboratory environment without having an entire engine cell.

Water cooled versions of the Accudyne are quiet and therefore appropriate for NVH testing applications. Utilizing dynamic frequency shifting capability, the Accudyne can change its operating frequency, eliminating conflict with target frequencies being measured.

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Defense Tech Briefs Magazine

This article first appeared in the August, 2007 issue of Defense Tech Briefs Magazine.

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