Sakor develops customized starter/alternator test system for major OEM

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Sakor Technologies has delivered a dynamometer testing system to a major OEM for testing starter/alternators for hybrid and electric vehicle applications.

The unit consists of a 42kW AccuDyne AC motoring dyno and Sakor’s DynoLab test automation controller. AccuDyne dynamometers offer full four-quadrant operation with seamless transition between loading and motoring modes. The system communicates with the customer’s ECU via CANbus technology.

This particular test system is capable of operating at speeds as high as 18,000rpm and as low as 0rpm, providing full torque in a stall condition. Furthermore, the dynamometer can run in motoring or loading modes at maximum rated torque/power in either direction at any time, and can switch between these modes instantaneously.

The unit offers the ability to test the maximum power, speed, and generator capacity of starter/alternators. In addition, it enables operators to run road load cycles to simulate real-world conditions, including engine start-up, dynamic braking, power assist and battery charging modes.

It features two battery simulators that are also regenerative DC power supplies. One simulator can supply power at up to 120V and 400A; the other unit can supply up to 40V and 1,200A. As a result, it can be used to test the full range of components at a relatively low cost.

“This system is a uniquely configured solution to our customer’s very specific needs,” said Randal Beattie, president of Sakor.

“The OEM may have needed to purchase two to three different off-the-shelf machines to perform this testing, however the Sakor system is capable of meeting a broad range of test requirements in a single machine.

“The cost of operations of the test cell is also greatly reduced because the system is capable of power recapture and therefore uses much less electrical energy over the testing cycle.”

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Rachel's career in journalism began around five years ago when she started working for UKi Media & Events, having recently graduated from Coventry University where she studied the subject. Her favourite aspect of the job is interviewing industry experts, including researchers, scientists, engineers and technicians, and learning more about the groundbreaking technologies and innovations that are shaping the future of the automotive and tire industries.

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