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Comparing In-house and Commercial Load Solutions for Automotive Test

Published with kind permissions of Auto Electronics


The functional testing of automotive electronic control modules (ECMs) presents many challenges, mainly due to the physical loads connected to ECMs: solenoids, motors, spark plugs, electromechanical transducers and so on. These represent an array of inductive and resistive loads that must be simulated in the production test environment to ensure proper testing of the ECM.

To accomplish these tests, a test engineer faces a “make vs. buy” decision: Design a load solution in-house or purchase a commercially available solution. Each approach has strengths and weaknesses. This article uses two key criteria—cost-of-test and time-to-production—to evaluate the load strategies that can be applied to functional testing in a production environment. It also presents key strategies to consider when planning for production testing. For the full story, please click here.

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