ISO 7637-1

 

ISO 7637-1 defines general considerations, mostly when testing to ISO 7637-2 (Electrical transient conduction along supply lines only) or ISO 7637-3 (Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines)

 

ISO 7637-2

 

ISO 7637-2 "specifies test methods and procedures to ensure the compatibility to conducted electrical transients of equipment installed on passenger cars and commercial vehicles fitted with 12 V or 24 V electrical systems. It describes bench tests for both the injection and measurement of transients."

 

Typically, you'll need perform transient immunity testing using an NSG 5500, provide the battery voltage with a Battery Simulator like the PA 5840, and measure transient emissions with the AES 5501. An NSG 5600 controls the Battery Simulator and provides many necessary accessories.

 

ISO 7637-3

 

Part 3 of this standard defines immunity testing for "transient transmission by capacitive and inductive coupling via lines other than supply lines". You'll generally use a transient generator and one of many types of available CDNs for coupling on signal lines.

 

ISO 10605

 

Road Vehicles - Test Methods For Electrical Disturbances From Electrostatic Discharge. Users typically use an ESD gun like the NSG 438 on a defined workbench for this test.

 

ISO 11452-2

 

This standard is the reference standard in automotive EMI, defining component test methods for electrical disturbances from narrowband radiated electromagnetic energy in absorber-lined shielded enclosures.

 

ISO 11452-8

 

This standard is for testing for immunity to magnetic fields. One typically uses an NSG 5600 equipped with a DS 5630, a battery simulator and a radiating loop (for high field strengths) or helmholtz coil for larger test volume but lower field strengths.

 

ISO 16750-2

 

This standard defines many immunity tests to be performed. While the title, "Electrical loads" is not particularly descriptive, one can consider this a type of power quality test for vehicle electronics. Inside this standard, various dropout tests, ripple tests and other simulations are defined that require an NSG 5600 and a Battery Simulator. Recently, Pulse 4 (starting impulse) and Pulse 5 (Load Dump) have been moved to this standard.

 

JASO D001-94

 

Written by the Japanese Automotive Standards Organization in 1994, this standard is mostly obsolete, but some users perform these tests for legacy standards. The latest JASO standards are identical to ISO 7637.

 

The NSG 5500 can contain modules (JT 5510, JT 5550) for performing these tests.

 

SAE J1113-2

 

This standard defines ripple testing that is effectively transformer sine wave noise. It has been described as "ground shift" by some. The NSG 5602 contains the necessary transformer.

 

SAE J1113-11

 

Very similar to ISO 7637-2, this standard "defines methods and apparatus to evaluate electronic devices for immunity to potential interference from conducted transients along battery feed or switched ignition inputs. Test apparatus specifications outlined in this procedure were developed for 12-V passenger cars and light trucks, 12-V heavy duty trucks, and vehicles with 24-V systems."

 

Typically, you'll need perform transient immunity testing using an NSG 5500, provide the battery voltage with a Battery Simulator like the PA 5840, and measure transient emissions with the AES 5501. An NSG 5600 controls the Battery Simulator and provides many necessary accessories.

 

SAE J1113-12

 

Virtually identical to ISO 7637-3, this standard serves as a "common basis for the evaluation of devices and equipment in vehicles against transient transmission by coupling via lines other than the power supply lines."

 

You'll generally use a transient generator and one of many types of available CDNs for coupling on signal lines. We recommend at least a CDN 500.

 

SAE J1455

 

This standard is relevant heavy-duty vehicle applications. Besides a huge list of environmental tests, this standards also a suite of EMC tests for transients and voltage a variations and ESD. Users of the latest NSG 5500 and NSG 5600 and a Teseq battery simulator and ESD gun will find the requirements well-covered.