Automotive Transient Generators
ATEC offers affordable rental rates for ISO 7637 transient generators and carries a broad inventory of automotive transient test systems and automotive EMC test equipment.
What is an Automotive Transient Generator?
An automotive transient generator is designed for testing automotive components for their susceptibility to automotive EMI, surges, or drops in current. These problems can possibly shut off or damage electrical components built into the car, such as digital speedometers or turn signals. Automotive component transient immunity is primarily regulated by the test standard ISO 7637.The advancement of technology in the automotive industry has led to higher quality and more complex electrical systems integrated into cars, which rely on successful communication between sensors and control systems. New electrical components are new potential victims of automotive EMI, meaning the conducted immunity testing of cars is becoming more and more of a complex process.
Testing with an ISO 7637 transient generator
An ISO 7637 transient generator simplifies the process of automotive EMC testing and is designed to produce waveforms that simulate real-world car troubles. Components in a vehicle can become overloaded, sending surges from the ignition that can affect the stereo, turn signals, battery, or alternator. Another problem, referred to as a load dump, occurs when the battery disconnects from the alternator in the middle of being charged, resulting in the car's engine dying. A variety of conducted immunity tests are performed to reproduce these conditions.How Does an ISO 7637 Transient Generator work?
ISO 7637 test equipment uses voltage and current during the testing process. The device produces waveforms that simulate real-world car problems. Technicians can change variables on the ISO 7637 transient generator using the unit’s interface to run specific tests, including load dump testing, voltage drop testing, and more. Test engineers look to International Standards Organization (ISO) and Original Equipment Manufacturer (OEM) test standards for guidance in achieving automotive EMC compliance.
Automotive Conducted Immunity Tests
- Electrical Fast Transient (EFT/Burst)
- Load Dump
- Micropulse (Surge)
- Power Fail Simulators
- Transient Emissions
- Voltage Drop Simulation
ISO Generator Standards
- ISO 7637-1 | General considerations for electrical disturbances from conduction & coupling
- ISO 7637-2 | Transient conduction along supply lines
- ISO 7637-3 | Transient conduction by capacitive/inductive coupling via non-supply lines
- ISO 16750-2 | Electrical load testing
OEM Standards
OEM standards vary depending on the manufacturer. Contact us for further details.- Audi
- BMW
- Chrysler
- Ford
- Hyundai
- Nissan
- Toyota
- + Many more OEMs
Other Essential Standards
- SAE J1113
- GMW3172
- JASO D001-94
- OEM LV 123/OEM LV 148 (Contact us for further details)