Environmental Reliability Test of Automotive Electronic Products
February 26, 2021
Automobiles are complex products composed of up to thousands of electronic components. Especially with the development of the automobile industry, more and more control electronics, entertainment multimedia electronics, navigation and in-vehicle communications, etc., make vehicles more complex. Increase. The reliability of these electronic components is very important, which directly determines the safety and operational reliability of the entire vehicle. In particular, strict environments (transportation, storage, work, climate, etc.) are testing the reliability of automotive electronics.
At present, there are many environmental reliability testing requirements and standards for automotive electronic products around the world, and the commonly used standards are mainly ISO 16750 series, EIA-364 series, etc.
Different test environmental conditions will have different effects on the product and produce different failures.
Under high temperature test conditions, the following effects will occur on the components of the product: aging, vaporization, cracking, softening, melting, expansion and evaporation, etc. Corresponding cars will experience poor circuit system insulation, mechanical failure, and increased mechanical stress.
Under the low-temperature test conditions, the following effects will occur on the components of the product: embrittlement, icing, shrinkage and solidification, and decrease in mechanical strength. Corresponding automobiles will have poor circuit system insulation, cracked mechanical failures, and sealing failures.
List of automotive electronic product testing standards:
1. High temperature test
2. Low temperature test
3. Temperature and humidity test
4. Temperature and humidity cycle test
5. Salt spray test
6. Sand and dust (dustproof) test
7. Rain (waterproof) test
8. Thermal shock test
9. Weather resistance test
10. High rate of change temperature cycle test
11. Water immersion/water seepage test