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.