Power Transients for Testing Automotive Electronics
应用文章
Electronic control units (ECUs) and other automotive electronic devices must be immune to the harsh power systems in which they operate. Power system surges, drop-outs, and other types of transients are common, so automotive ECUs and electronic devices need to be thoroughly validated to assure proper and reliable operation.
To assist validation, standard ISO test specifications have been developed that replicate the power transients seen in automotive applications. These specifications are rigorous, and the test equipment required to generate these transients is specialized and expensive. A couple of issues arise as a result:
- This equipment typically remains in the quality control lab, limiting its availability.
- Most companies have their own adaption of the ISO standard, which usually evolves over time with the increasing electrification of automobiles. The specialized equipment may not keep up with, or provide the flexibility, to address these evolving needs of individual companies.