T/CSAE 151-2020 in English
VALIDElectromagnetic compatibility test methods for electric vehicles
- Issued on:2020-08-07
- Implemented on:2020-08-07
- File Format:PDF
- Delivery:Via email within 5 business days
$437.00
Introduction
Analysis of the core content of the standard
This standard systematically specifies the EMC test requirements for pure electric, hybrid and fuel cell vehicles, focusing on:
- 9 types of emission tests: including 30MHz-1GHz radiated emission, 150kHz-30MHz conducted emission, etc.
- 7 types of immunity tests: including 80MHz-2GHz radiated immunity, electrostatic discharge, etc.
- Special working condition verification: Charging mode needs to distinguish between AC/DC for special testing
Comparison of key technical indicators
| Test type | Frequency band range | Limit requirements | Detection method |
|---|---|---|---|
| Radiated emission | 30MHz-1GHz | QP:32-43dBμV/m | Peak/Quasi-Peak |
| Conducted Emission | 150kHz-30MHz | AV:56-60dBμV | Average |
| Harmonic Current | 50Hz-2kHz | THD≤23%(≤16A) | RMS |
Typical Test Case Analysis
Charging Mode Conducted Emission Test
A certain model in anechoic chamber, it was found that the 150kHz frequency exceeded the standard:
- Problem location: On-board charger DC-DC converter switching frequency interference
- Corrective measures: Add common mode choke + adjust PCB layout
- Verification result: The test value dropped from 68dBμV to 52dBμV
Standard implementation recommendations
Enterprise response strategy
- Design phase: Refer to Appendix A for functional classification for EMC risk classification
- Test preparation: A dry test vehicle needs to be prepared 72 hours in advance
- Resource guarantee: Recommended configuration3m semi-anechoic chamber and 100kHz-3GHz receiver
Common non-conformities
Statistics show that 80% of the problems are concentrated in:
- EFT immunity failure of DC charging port
- Radiation of 30MHz frequency band of driving motor exceeds the standard
- Insufficient anti-interference of GSM frequency band of in-vehicle entertainment system
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