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Standard Overview Products Used in Testing Related Compliance Standards

Standard Overview

ISO 16750 applies to electric and electronic systems and components for vehicles. ISO 16750-2 more specifically refers to road vehicles and their environmental conditions and electrical equipment testing. 

ISO 16750

ISO 16750 focuses on the potential environmental consequences and highligh
ts tests and requirements that are recommended for the specific mounting location on the vehicle. Several environmental factors were considered in the creation of the ISO 16750 series including world geography and climate, type of vehicle, vehicle use conditions and operating modes, equipment life cycle, vehicle supply voltage, and mounting location.

Types of Testing for ISO 16750 Complience 

  • Testing generator regulator failure
  • Simulating jump start 
  • Superimposing voltage
  • Superimposing sinusoidal voltage
  • Evaluating the effect of momentary drop in supply voltage
  • Completeing frequency sweeping
  • Verifing the DUT reset behaviour at different voltage drops
  • Checking the resistance of the DUT
  • Running other supply voltage tests

ISO 16750-2

ISO 16750-2 is a subsection of the ISO 16750 standard in the general category of road vehicles for environmental conditions, electrical equipment testing, and electronic equipment testing. ISO 16750-2 describes the potential environmental stresses and specifies tests and requirements recommended for the specific mounting location on/in the road vehicle. Independent of the mounting location, electrical loads vary based on a vehicle wiring harness and connection system's electrical resistance.

Direct current supply voltage

Direct current supply voltage is something to consider when authenticating equipment functionality at the minimum and maximum supply voltage:

Table 1 - Supply voltage for system devices with 12 V nominal voltage

 

Code

Minimum supply voltage (UsminV)

Maximum supply voltage, (UsmaxV)

A

6

16

B

8

16

C

9

16

D

10.5

16
 

Table 2 - Supply voltage for system devices with 24 V nominal voltage

 

Code

Minimum supply voltage (UsminV)

Maximum supply voltage, (UsmaxV)

E

10

32

F

16

32

G

22

32

H

18

32

 

Load Dump Transient of ISO 16750-2

The Load Dump pulse, as seen above, is specified to simulated an automotive system in which the battery is disconnected, while the alternator is providing a charging current in circuit.

Reversed Voltage

This test is to verify functionality of an automotive system in which the battery is connected at the opposite terminals. Transient Generators are not required to accomplish this, but a DC Source or Battery would be required.

ISO 16750-2 Test Equipment

ISO 16750-2 is approved by the Technical Committee ISO/TC 22 and Subcommittee SC 3. For more information please contact our technical experts at Advanced Test Equipment Corporation to discuss your testing requirements. Further testing is required per ISO 16750-2 and can be found by purchasing the standard here. 

Products Used in Testing
EM Test VDS 200N30 Voltage Drop Simulator | 60 V, 30 A

EM Test VDS 200N30 Voltage Drop Simulator | 60 V, 30 A

  • Voltage up to 60 V
  • Current up to 30A
  • Bipolar-amplifier models available
AE Techron DSR 100-200 | Pulse 2B and 4

AE Techron DSR 100-200 | Pulse 2B and 4

  • 4-Quadrant – Can source and sink current.
  • ±80V – DC supply for 12V to 48V systems; meets 80V surge requirements.
  • 300 kHz Sine – DC ripple tests for all major standards.
EM Test LD 200N Load Dump Generator for ISO 7637

EM Test LD 200N Load Dump Generator for ISO 7637

  • Generates clipped load dump pulses (optional built-in module).
  • Built-in 0.5 - 38 ohm source impedance, selectable in 0.1 ohm steps.
Teseq NSG 5500 Automotive Transient Immunity Tester for ISO 7637

Teseq NSG 5500 Automotive Transient Immunity Tester for ISO 7637
Front image of AE Techron 8704

AE Techron 8704 Linear Power Amplifier | 250 kHz, 60 ARMS

  • Bandwidth: DC to 250 kHz.
  • Maximum Continuous Output Current: 60 ARMS.
  • Capable for ISO 61000 and aviation testing, and DC automotive dropout testing.
AE Techron 7228 Linear Power Amplifier | 1 MHz, 1000 W

AE Techron 7228 Linear Power Amplifier | 1 MHz, 1000 W

  • DC to 1 MHz bandwidth and improved performance at frequencies above 100 kHz.
  • AC Power (up to 20 kHz): 1000 watts RMS.
  • For FMC 1278, DO-160, and MIL STD 461 testing.
AE Techron 7782 RMS Power Amplifier | DC-50kHz, 3.3kW

AE Techron 7782 RMS Power Amplifier | DC-50kHz, 3.3kW

  • Bandwith: DC to 50 kHz at rated power into 8 ohms; DC to 100 kHz at reduced power.
  • Output: 500 volts and 200 amperes maximum are possible with multiple, interconnected amplifiers.
  • For MIL-STD-461 and DO-160 testing.
AE Techron 7136 AC/DC Amplifier with Precision DC Power Supply | 400 kHz, 900 W

AE Techron 7136 AC/DC Amplifier with Precision DC Power Supply | 400 kHz, 900 W

  • Bandwith: 400 kHz
  • Output: 900 watts RMS
  • For DO-160 Section 16
AE TECHRON 9110 front of unit

AE Techron 9110 Amplifier | DC to 250 kHz, 5 kW

  • Bandwith: DC to 250 kHz
  • Power Output: 5 kW
  • For conducted immunity testing in the automotive and aviation markets
Front of AE Techron 7796

AE Techron 7796 DC Power Amplifier | DC to 100 kHz, 6.6 kW

  • DC to 50 kHz at rated power, DC to 100 kHz at reduced power.
  • Output Power: 6.6 kW.
  • For ANSI-T1-315-2001 or MIL-STD-704. 
Front of AE Techron 7794

AE Techron 7794 4-Quadrant Power Amplifier | DC to 100 kHz, 5 kW

  • Bandwith: DC to 100 kHz.
  • Output Power: 5 kW.
  • For military, aviation and automotive test standards.
AE Techron 7224 Power Amplifier

AE Techron 7224 Linear Power Amplifier | DC – 300 kHz, 900 W

  • Frequency bandwidth of DC to 300 kHz at rated power.
  • Continuous output of over 1,100 watts RMS at 4 ohms.
  • 40 mSec pulses of up to 52 amperes peak into a 0.5 ohm load.
Front of AE Techron 7796HC DC

AE Techron 7796HC DC Power Amplifier | 30 kHz, 6600 Watts

  • Frequency bandwidth of DC to 75 kHz at rated power, DC to 150 kHz at reduced power.
  • System output of over 600 amperes maximum are possible with multiple, interconnected amplifiers.
  • For DO-160, MIL 461, and MIL 704.
AE Techron 8500 Series Amplifiers | DC to 50 kHz, 60 to 300 ARMS

AE Techron 8500 Series Amplifiers | DC to 50 kHz, 60 to 300 ARMS

  • Bandwidth: DC to 50 kHz
  • Current: 60 to 300 ARMS
  • For Mil-PRF capacitor tests, DC automotive dropout testing, and as a variable AC source for ISO 61000, Aviation and Power Quality Measurements.
Front of Bolab 100-TS

BOLAB 100-TS Series | DC up to 1 MHz, 400 W – 18000 W

  • Bandwith: DC up to 1 MHz
  • Output: 400 W – 18000 W
  • For LV124 / VW80000, LV148, ISO 16750, ISO 7637, DIN 40839, and GS 95024
Front image of the BOLAB Systems BLS-130-70N-TS

BOLAB Systems BLS-130-70N-TS 4-Quadrant Voltage Amplifier

  • DC up to 1 MHz (small signal -3 dB)
  • Ouput: 3,000 W
  • For LV124 / VW80000, LV148, ISO 16750, ISO 7637, DIN 40839, GS 95024

Related ISO Standards

Explore All Standards
ISO 7196:1995 Acoustics — Frequency-weighting characteristic for infrasound measurements
Methods have already been standardized for the description and assessment of noise from various sources and with respect to various effects on human subjects (risk of hearing damage, annoyance reactions, loudness, perceived noisiness, interference with speech communication). In all these cases, the bandwidth of the noise is either considered to lie within the conventional audio frequency limits from 20 Hz to 20,000 Hz or within a specified narrower band (for example, 45 Hz to 11,200 Hz in the case of perceived noisiness of aircraft). The band limits of 20 Hz and 20,000 Hz also define the frequency range for which the characteristics of sound level meters are fully specified (see IEC 651). In practice, some noises consist of, or contain components at, frequencies below 20 Hz. At present, there are no standardized methods for sound pressure measurements of these noises, nor for their description and assessment with respect to human response. Although research in this field is comparatively sparse, there is evidence of infrasonic effects which are potentially harmful or unpleasant to human subjects and some authorities may desire to extend their regulations or codes of practice governing noise emissions to cover sources of infrasound. For this reason, it is considered to be highly desirable to standardize measurement and description methods in order to facilitate the exchange of information and to avoid proliferation of incompatible procedures. Many types of human response can be distinguished and, correspondingly, different description methods are, in principle, appropriate. The method described in this International Standard corresponds to the direct perception of infrasound. At present, this is the only human response for which there is an ample research base. Some literature on annoyance from infrasound suggests that annoyance may be closely related to the direct perception. On that precondition, levels measured according to this International Standard would
ISO 7637: Road Vehicles – Electrical Disturbances from Conduction and Coupling
ISO 7637 is an automotive EMC test standard that outlines testing requirements for simulating electrical transients in road vehicles with 12V or 24 V electrical systems. ATEC carries EMC test equipment designed to meet the test specifications of ISO 7637-2, the latest version of the standard. Read on for more information about ISO 7637, applicable test pulses, and recommended ISO 7637 test equipment. What is ISO 7637? ISO 7637 defines test parameters for the EMC testing of road vehicles, specifically the simulation of electrical disturbances, or transients, in vehicle power supply lines. The standard, which covers both susceptibility and emissions testing, defines proper waveforms for test pulses and lists necessary electrical components. ISO 7637 also offers performance classifications for test pulses based on their frequency, strength, and burst cycle; ratings vary between pulses, and for the 12V or 24V electrical systems of commercial vehicles. Automotive manufacturers across the world rely on ISO 7637 to ensure the electromagnetic compatibility of their electrical systems; it is a common requirement for vehicle component development. Discovering a vulnerability to transients early on in automotive design is essential, as failures during formal EMC testing waste companies’ time and money. ISO 7637 is designed to protect car electronics that are vulnerable to surges from automotive power supplies. Since the advent of EMC testing, manufacturers have developed their own EMC standards in response to the myriad of electrical disturbances to which road vehicles fall victim. ISO, the International Organization for Standardization, developed ISO 7637 as a universal standard that covers as many varieties of automotive transients as possible.   ISO 7637 Subsections ISO 7637 is composed of five parts: ISO 7637-1 Definitions and general considerations ISO 7637-2 Electrical transient conduction along supply lines
ISO 7637-2: Electrical Transient Conduction Along Supply Lines Only
The purpose of ISO 7637-2 is to ensure electromagnetic compatibility of passenger and commercial vehicles operating on 12V or 24V electrical systems. ISO 7637-2 requires multiple conducted transients to be coupled onto DC lines to test the compatibility of vehicles. This standard is applicable to both internal combustion engine and electric motor vehicles.   Equipment Required: Transient Generator - HILO CAR TEST 14 Oscilloscope - Tektronix MDO4104C Differential Probe - Probe Master 4234 ISO 7637-2 Test Pulses The following tables show data that highlights Pulse 1, Pulse 2a, Pulse 2b, Pulse 3a, and Pulse 3b. Pulse 1 ISO 7637-2 Pulse 1 is used to simulate the transients created in the case that a motor, or inductive load, is disconnected from the circuit.    Parameters of this pulse can be verified using an oscilloscope and differential probe to meet the specifications below. Pulse 2a ISO 7637-2 Pulse 2a is used to simulate transients that occur when there is a current interruption on a device in parallel with the DUT and caused by the wiring harness inductance. Pulse 2b ISO 7637-2 Pulse 2b is used to simulate transients when a vehicle is turned off, but electric DC motors remain active and serve as a generator. Pulse 3a The pulse 3a is similar to an EFT pulse as seen in IEC 61000-4-4 (HYPERLINK THIS), this transient waveform is simulating switching occuring in a system connected by a wiring harness, in which the load is capacitive or inductive. Pulse 3b Similar to pulse 3a, except opposite polarity. Pulse 3b is another EFT waveform representing switching within a wire harness. These pulses also simulate the scenario in which a fuse is blown.   Pulse 4, 5a, & 5b ISO 7637 Pulse 4, Pulse 5a/5b were removed from the most recent revision of ISO 7637-2 and can be found now in ISO 16750-2.   ISO 7637-2 Test Equipment ATEC recommends the following products for testing
ISO 10605: Road Vehicles—Test Methods for Electrical Disturbances from Electrostatic Discharge
ISO 10605 covers testing procedures involving electrostatic discharge within road vehicles. ISO 10605  ISO 10605 is accredited by the Technical Committee ISO/TC 22 and Subcommittee SC 3. This test methods needed for electrical disturbances, which is caused by electrostatic discharge, are specified with ISO 10605 requirements. For example, charge build-ups made from movement inside a vehicle or during exiting can result in electrostatic discharge. ESD Tests  Tests that simulate an electrostatic discharge (ESD) into a vehicle electrical system are based on the human ESD model. Sensitive electrical devices can be adversely affected by energy either coupled or radiated from electrostatic discharges. This International Standard describes ESD tests that apply to both automotive electronic modules and vehicles.    ESD Waveforms for ISO 10605  There a four different discharge networks used to accomplish each waveform as required by ISO 10605. The different Resistance and Capacitance values affect the discharge output timing typically measured at 30 and 60ns. When changing networks, the decay time of the waveform changes and results are measured as listed in the table above.   Waveform 1 is the ESD discharge using a 330 pF/330 Ω network Waveform 2 is the ESD discharge using a 150 pF/330 Ω network Waveform 1 here is using a 330 pF/2000 Ω discharge network Waveform 2 here is using a 150 pF/2000Ω discharge network Starting Profile Waveform of ISO 10605-2 The starting profile waveform is created from from a Load Dump Simulator and a DC Source to simulate an automotive system during start up. This is traditionally seen in Internal Combustion Engine (ICE's) vehicles where cranking occurs upon startup. ISO 10605 Test Equipment  ATEC carries several products for ISO 10605 from industry-leading companies, including Haefely and Teseq. Please,