EN 62368 Durability Testing of Audio and Infotainment Electronics in Vehicles
The European standard EN 62368-1 is pivotal for ensuring the safety of audio and infotainment electronics installed in vehicles. This test evaluates the durability of these components under conditions that simulate real-world usage, including temperature changes, mechanical stresses, and electrical surges. The primary goal is to guarantee that any electronic component meeting this standard will perform reliably throughout its expected lifespan without failure.
Component durability testing aligns with broader automotive safety standards like ISO 26262, which focuses on functional safety within the vehicle's electronic system. The EN 62368-1 test specifically targets audio and infotainment electronics, covering a wide range of potential failure modes that could arise from improper handling or environmental stressors during use.
The testing procedure involves exposing the electronic components to various stresses over time, including:
- Temperature cycling from -40°C to 85°C
- Vibration at frequencies between 10 Hz and 2 kHz
- Humidity levels up to 93% relative humidity
- Electrical stress testing including transient voltage surges
After each cycle, the integrity of the electronic components is assessed. This includes checking for physical damage and verifying that all functionalities remain intact after exposure.
The standard also specifies detailed procedures for preparing test specimens, such as ensuring proper insulation, grounding, and shielding to mimic real-world vehicle configurations accurately.
Scope and Methodology
| Test Parameters | Description |
|---|---|
| Temperature Cycling | The test subjects are subjected to cycles of temperature variation between -40°C and 85°C, simulating the extreme climates a vehicle might encounter. |
| Vibration Testing | The components undergo mechanical stress by being placed on a shaker table that produces vibrations within the range of 10 Hz to 2 kHz. This mimics the dynamic environment inside a moving vehicle. |
| Humidity Exposure | Components are exposed to humidity levels up to 93% relative humidity, replicating conditions that might be encountered in tropical or coastal regions. |
| Electrical Stress Testing | The electronic components are subjected to transient voltage surges and other electrical stressors to evaluate their robustness against unexpected power fluctuations. |
Why Choose This Test
Compliance with EN 62368-1 is essential for manufacturers seeking to meet stringent regulatory requirements and ensure the safety of their products. By adhering to this standard, automotive manufacturers can:
- Ensure long-term reliability of audio and infotainment systems
- Avoid product recalls and associated costs due to failures in harsh environments
- Increase customer satisfaction by delivering products that are robust against environmental stresses
- Promote brand reputation for commitment to safety standards
The test also provides valuable insights into the durability of components under real-world conditions, enabling manufacturers to optimize designs and improve performance. This leads to more efficient production processes and ultimately contributes to cost savings.
Competitive Advantage and Market Impact
Adhering to EN 62368-1 can provide significant competitive advantages for automotive manufacturers. By demonstrating compliance with this standard, companies:
- Enhance their market credibility by showcasing a commitment to safety and quality
- Achieve easier regulatory compliance in multiple jurisdictions
- Increase customer trust through transparent product specifications
- Gain a strategic edge over competitors who may not meet these stringent standards
Furthermore, this testing ensures that products are not only safe but also reliable and consistent across different market segments. This reliability is crucial in the highly competitive automotive industry, where trust and safety are paramount.
