Robustness Testing against Low Voltage Transients - A Novel Approach

Paper #:
  • 2010-01-0195

Published:
  • 2010-04-12
Citation:
Dhadyalla, G., McMurran, R., Amor-Segan, M., Li, W. et al., "Robustness Testing against Low Voltage Transients - A Novel Approach," SAE Technical Paper 2010-01-0195, 2010, https://doi.org/10.4271/2010-01-0195.
Pages:
9
Abstract:
The increasing use of distributed functions in vehicles can introduce unexpected and undesirable emergent behavior. This can be as a result of transient events such as sudden drops in the supply voltage. In this situation system behavior is often not adequately specified or controlled. This paper presents a novel approach to automotive electronic systems testing addressing robustness against low voltage transient conditions. The paper will discuss the technical output as well as performance in real-world test usage. The proposed approach uses a combination of pseudo-random number generator algorithms to generate parameterized supply voltage waveforms simulating low voltage transient conditions, used to drive the system-under-test (SUT). Two measures are used to judge whether the SUT has passed or failed the test; the detection of unintended recorded Diagnostic Trouble Codes (DTCs) from the error memory of each Electronic Control Unit (ECU) and the detection of unexpected system functionality by a human observer or automated vision system.
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