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Reliability Test of Automotive Materials

In recent years, the applications of automotive electronics have impacted almost every system in the car, with the percentage of electronics products in the full car cost reaching 40%~50%. Automotive electronics products operate in an environment in constant movement and operation and they are subject to pronouncedly different environmental stresses. As a result, a relatively high standard is demanded for the environmental tests of automotive electronics products. The products are expected to pass various kinds of tests associated with harsh environments to ensure their normal operation within their projected lifetimes.


 Different standards of environmental tests exist over all automakers 
Currently, various automakers in different countries have their own testing standards. For example, the ISO standard system is widely accepted by the automakers in Europe and US, while the requirements for Japanese automakers deviate significantly from the ISO standard. Therefore, to ensure they can meet minimum standards, the internal environmental standards of each automaker are usually stricter than those required by ISO. For the built-in products by the automaker, the manufacturers conduct tests as required by the associated automakers. For the add-on products, however, to meet market demand, manufacturers must have a full understanding of the related standards and corresponding requirements and set up projects accordingly for environmental tests with suitable conditions. 

 Factors to consider in environmental tests: 
   
Geographic and climatic factors. 
   
Vehicle model. 
   
Voltage of power supply in vehicle. 
   
Operating conditions and modes. 
   
Life cycle of electronic equipment. 
   
Locations of electronic equipment in vehicle. 
   
The impact on the safety of life of electronic equipment (airbag and entertainment system). 

 Localized professional service by us 
As China has become the third largest country for automotive manufacturing, the major global automakers all have factories in China. To reduce costs, the majority of these automakers are gradually migrating to the local production of parts originally exported from abroad. Over the past few years, We have completed comprehensive tests for numerous projects for many manufacturers of automotive electronics products. With its leading role in testing technique and capability in East Asia, We can readily provide complete product testing plans for clients in China, conduct test simulations, and verify product defects. In addition to identifying the problems, We can help its clients solve issues and render higher customer satisfaction for their clients. 

 Automotive electronics products testing by Us come in six major systems 
   
Power control system: including engine management and control system, power steering, AT control and ACC. 
   
Safety control system: including air bag, ABS/ASR, and SAFE-BY-WIRE. 
   
Body control system: including electronics control such as switch control, light control, antitheft system, door lock system, window control, and wipers. 
   
Driving control system: including dashboard, AC, and chassis control system. 
   
Information system: including entertainment, mobile communication, GPS, and information processing. 

ADAS(Advanced Driver Assistant System) :include Radar sensor、Lidar sensor、Adaptive Cruise Control (ACC)、Lane Departure Warning(LDW)、Blind Spot Detection(BSD).


 Service Item 
   
Test of power supply environment(ISO 16750-2 / ISO 7637 / ISO 11452 / CISPR 25): 
Includes DC, over voltage, AC voltage superposition, voltage ramp down/up, interruption of power supply, reverse voltage, open circuit test, short circuit protection, withstand voltage, insulation resistance, and EMC. 
   
Mechanical environmental test(ISO 16750-3): 
Includes sinusoidal vibration, random vibration, mechanical shock, free fall. According to different test combinations are designed for equipment in business cars and passenger cars by the individual usage and locations of electronics products. The associated test conditions and limits are different. 
   
Climate environmental test(ISO 16750-4): 
Includes constant temperature test, variable temperature test, temperature cycle/shock test, ice water shock test, salt spray test, temperature and humdity cycle test, constant humidity test, corrosion test with mixed gases, and solar radiation test. 
   
Chemical environmental test(ISO 16750-5): 
Refers to the resistance to corrosion by the reagents of the original components in contact with regulated chemicals. The test is conducted by placing the product covered with the reagent at the designated temperature for 10 mins to 24 hours. Up to nearly 20 chemicals are used as reagents, including automotive diesel, automotive biodiesel, oil/unleaded gasoline, FAM test fuel, battery liquid, brake fluid, additive (undiluted), protection paint, and engine oil (various grades). The actual reagents can be determined by consulting with the associated automakers. 
   
Material Test: 
UV test, xenon light test, cross cut test, artificial sweat test, surface wear/scratch/hardness test and coating layer measurement, surface roughness test, flammability test, ozone test, solvent resistance test, chip stone test. 

 The Superiority of Us 
   
We are the only laboratory in this field can provide the one-stop solution from automotive modules, parts to IC supplier chain in product reliability analysis and IATF 16949、ISO/TS16949 quality management system certification. 
   
Received certifications issued by major clients such as Continental Automotive and DELPHI. 
     Received recognition by the ISO/IEC 17025 lab accreditation systems such as A2LA, CNAS, TAF and IECQ. 
   
Mastering requirements such as BENZ MBN LV 124、BMW GS 95003、FIAT/ALFA ROMEO 9.90110、FORD CETP 00.00E412、WDS 00.00EA-D11-1、GM GMW3172、HAITEC TES-76001、HYUNDAI/KIA ES 90000、ES 91500-00、MAZDA MES PW 67601、MITSUBISHI ES-X82113、NISSAN 28401NDS01、SMTC 3 800 001、TOYOTA TSC 0511G、TSC 7000G、VOLKSWAGEN VW 80000、VW 80101 by integrated automotive factories (OEMs). 
   
Established project team for automotive electronics by senior engineers, providing customers with the performance evaluation and analysis after aging test. 
   
Integrating physical and chemical inspection techniques and equipment; strengthening techniques for preparation, inspection and analysis of sample materials. 


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