Vehicle electronic systems are now immensely complicated and a typical wire harness will contain upwards of 2500 interconnects, with the number rising with each new model. Traditional methods of designing harnesses, even using simple CAD tools, are no longer sufficient to ensure right-first-time outcomes. In addition, the further down the development path a project goes, the more time-consuming and expensive it becomes to correct errors. In order to detect potential errors as early as possible, two main strategies need to be adopted: regular simulation of the design and frequent design rule checking (DRC). Sophisticated EDA tools are now available to make these processes easier and more automated for engineers and designers. This article looks at these two vital aspects of vehicle wire harness design and references.
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