ISO 7637

ISO 7637 is an international electromagnetic compatibility vehicle standard that relates to 12 and 14 volt electrical systems made by the International Organization for Standardization (ISO). The most up to date ISO 7637 revision was published in July of 2016 and cancels out the second edition (ISO 7637–3:2007) which has been technically updated.[1] There are currently 5 parts of ISO 7637 [2] that is designed to cover "Road vehicles - electrical disturbances from conduction and coupling"[3]

  • ISO 7637-1 Definitions and general considerations
  • ISO 7637-2 Electrical transient conduction along supply lines only
  • ISO 7637-3 Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
  • ISO 7637-4 Electrical transient conduction along shielded high voltage supply lines only
  • ISO 7637-5 Enhanced definitions and verification methods for harmonization of pulse generators according to ISO 7637

There are several distinct electrical transient waveforms that are required from this testing to ISO 7637-2. These pulses or waveforms include very high rise or fall times often in the nanosecond and microseconds range.[4] These transients are designed to simulate electrical occurrences in operational environments, including a Load dump simulation. ISO 7637 is referenced by many vehicle manufacturer standards and individual waveforms are modified to meet specific requirements[5]. ISO 7636 includes both immunity and emissions components of Electromagnetic compatibility testing.Transient Emission Analysis..using Simulation (PDF) (Report). EMC Europe 2013. p. 2. Retrieved September 6, 2013. This standard, including ISO 7637-2 places specific requirements on test equipment that can be used to replicate electrical occurrences.[6]

See also

References

  1. ↑ ISO 7637-3:2016 Part 3 Forward
  2. ↑ "1.2 ISO7637 and related standards overview". Texas Instruments. Texas Instruments. June 2016. Retrieved June 1, 2016.
  3. ↑ ISO 7637-2:2011 Part 2 Scope "Road vehicles - electrical disturbances from conduction and coupling"
  4. ↑ Brorein, Edward (2018-01-31). "Mathematically Defining Test Pulse 2b of the ISO-7637-2 Section 5.6.2 Automotive Test Standard". InCompliance Maganzine. Retrieved January 31, 2018.
  5. ↑ "ISO 7637-2:2011 Road vehicles -- Electrical disturbances from conduction and coupling -- Part 2: Electrical transient conduction along supply lines only". Transient Specialists. Retrieved 24 September 2018.
  6. ↑ Eddleman, Dan (2017-10-22). "Robust Automotive Supply Protection for ISO 7637-2 and ISO 16750-2 Compliance". EE News Automotive. Retrieved October 22, 2017.
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