ISO 7637-2:2011
Road vehicles — Electrical disturbances from conduction and coupling — Part 2: Electrical transient conduction along supply lines only
ISO 7637-2:2011 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. It is applicable to all types of road vehicles independent of the propulsion system (e.g. spark ignition or diesel engine, electric motor).
Function performance status classification for immunity to transients is also provided.
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1 Scope
2 Normative references
3 Terms and definitions
4 Test procedure
4.1 General
4.2 Test temperature and supply voltages
4.3 Voltage transient emissions test
4.3.1 General
4.3.2 Test set-up for slow pulses
4.3.3 Test set-up for fast pulses
4.4 Transient immunity test
4.4.1 Location of the DUT
4.4.2 Location of the power supply lines
4.4.3 Location of the load simulator
4.4.4 Test set-up
5 Test instrument description and specifications
5.1 Artificial network
5.2 Shunt resistor Rs
5.3 Switch S
5.4 Power supply
5.5 Measurement instrumentation
5.6 Test pulse generator for immunity testing
5.6.1 Test pulse 1
5.6.2 Test pulses 2a and 2b
5.6.3 Test pulses 3a and 3b
5.6.4 Note on test pulses 4, 5a, and 5b
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1 Scope
2 Normative references
3 Terms and definitions
4 Test procedure
4.1 General
4.2 Test temperature and supply voltages
4.3 Voltage transient emissions test
4.3.1 General
4.3.2 Test set-up for slow pulses
4.3.3 Test set-up for fast pulses
4.4 Transient immunity test
4.4.1 Location of the DUT
4.4.2 Location of the power supply lines
4.4.3 Location of the load simulator
4.4.4 Test set-up
5 Test instrument description and specifications
5.1 Artificial network
5.2 Shunt resistor Rs
5.3 Switch S
5.4 Power supply
5.5 Measurement instrumentation
5.6 Test pulse generator for immunity testing
5.6.1 Test pulse 1
5.6.2 Test pulses 2a and 2b
5.6.3 Test pulses 3a and 3b
5.6.4 Note on test pulses 4, 5a, and 5b