Sakor Technologies develops starter-alternator dynamometer system

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Michigan-based Sakor Technologies has designed a dynamometer testing system consisting of a 42kW AccuDyne AC motoring dynamometer and a DynoLAB test automation controller for an OEM.

 The new system, which was developed to test starter-alternators for hybrid/electric vehicle (H/EV) applications, communicates with the customer’s ECU via CANbus technology.

Capable of operating at speeds as high as 18,000rpm and as low as 0rpm, the system provides full torque in a stall condition. Furthermore, the dynamometer can run in motoring or loading modes at maximum-rated torque in either direction at any time and can switch between modes instantaneously.

The system can also test the maximum power, speed and generator capacity of starter-alternators. It enables operators to run road load cycles to simulate real-world conditions, including starting the engine, dynamic braking, power assist and battery charging modes.

Two battery simulators function as regenerative DC power supplies. One simulator can supply power at up to 120V and 400A, while the other unit can supply up to 40V and 1200 amps.

“This system is a uniquely configured solution to our customer’s very specific needs,” said Randal Beattie, president of Sakor. “Whereas this OEM may have needed to purchase two to three different off-the-shelf machines to perform this testing, the Sakor system is capable of meeting a broad range of test requirements in a single machine.”

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Sam joined the UKi Media & Events automotive team in 2017, having recently graduated from the University of Brighton with a degree in journalism. For the newest addition to the editorial team, stepping into the assistant editor position signalled the start of a career in the subject he studied. In addition to his work on UKi’s automotive titles, Sam also contributes to Stadia, writing content for the magazine and website.

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