Home Testing Electromagnetic Compatibility (EMC)

Electromagnetic Compatibility (EMC) Lab

An important element in the design and development of today's complex vehicles is to assure the compatibility of the electrical system and its numerous subsystems with itself and the environment in which it is used. To assure electrical system compatibility, we must understand and control the Radio Frequency (RF) emission and immunity characteristics of all components and systems in the vehicle. This also includes fully characterizing these systems with regard to their immunity to Electrostatic Discharge (ESD) and other transient voltages. Furthermore, inductive components, such as motors and solenoids, must be evaluated to determine their potential to generate transient voltages within the vehicle's electrical system.

Vehicle Anechoic Test Chamber
Vehicle Anechoic Test Chamber showing vehicle and automated antenna cart

Laboratory Overview

  • Designed as an integrated vehicle and component EMC test facility, with a staff that can provide EMC solutions
  • Test facilities are backed by EMC test experts who develop tests and keep the facilities current
  • Capable of performing developmental verification, and certification tests
  • Component lab is ISO17025 Certified
  • Vehicle Immunity Chamber tests are ISO17025 Certified
  • Test capability includes immunity, emissions, and electrostatic discharge (ESD) evaluation

RF Immunity

In the presence of high electromagnetic fields created by radio transmitters (whether portable, mounted on the vehicle, or roadside installations), the electronic subsystems on the vehicle could malfunction, cease to function temporarily, or experience a catastrophic failure.

RF Emissions

Each electronic subsystem can create radio frequency energy, which, even at low levels, can cause poor radio reception and create a variety of electrical noises within audio electronics.

Voltage Levels and Transient Immunity

Inadequate electrical voltage to the subsystems on the vehicle can create detrimental effects such as lamp dimming, poor motor or solenoid operation, and interruptions to electronic subsystem operation. Transient voltages caused by sudden changes to the electrical loads on the system or electro-static discharges can disrupt or damage electronic modules. With proper design and appropriate testing, Chrysler Vehicle Engineering can assure that competitive performance will be provided to the owners of our vehicles. The Electrical/ Electronic Systems Compatibility Group provides expertise and guidance to each of the Platforms in this important area of vehicle design. The testing we do here provides the measure of performance for electronic modules and complete vehicles relative to established performance requirements.

Vehicle Reverberation Chamber
Vehicle Reverberation Chamber

Module EMC Immunity Tests

  • Anechoic Test Chamber (200 MHz to 18 GHz)
  • Bulk Current Injection (10 kHz to 500 MHz)
  • Module TEM (10 kHz to 200 MHz)

Module EMC Emissions Tests

  • Conducted RF Emissions (10 kHz to 200 MHz)
  • Magnetic Emissions (DC to 250 kHz)
  • Radiated Emissions (15 Hz to 18 GHz)
  • Conducted Transient Emissions

Other Module Tests

  • Electro-Static Discharge, ESD
  • Transient Immunity
  • Electrical Testing

Vehicle EMC Immunity Tests

  • Vehicle TEM (10 kHz to 30 MHz)
  • Anechoic Test Chamber (30 MHz to 18 GHz)
  • Reverberation Test Chamber (800 MHz to 18 GHz)

Vehicle EMC EmissionsTests

  • Magnetic Emissions (DC to 250 kHz)
  • Radiated Emissions (15 Hz to 18 GHz)
  • Conducted Transient Emissions

Other Vehicle Tests

  • Open Area Test Site (OATS) at proving grounds for emissions measurement
  • Regulatory testing (Canadian Certification and European Homologation)
  • Electrical loads distribution
  • Circuit Protection and Noise Coupling analysis
  • Electro-Static Discharge and Transients
  • Ability to test large vehicles such as bus, heavy truck, and military applications
  • Antenna pattern measurement
Vehicle Shielded Test Room
Vehicle Shielded Test Room

  • Vehicle TEM (10 kHz to 30 MHz)