ISO11452-5 ：Road vehicles-Component test methodsfor electrical disturbances from narrowbandradiated electromagnetic energy

ISO 11452-5 is a standard related to the electromagnetic compatibility (EMC) of vehicles and their components. Specifically, ISO 11452-5:2017 defines the test methods for the radiated immunity of components of vehicles. It is part of a larger set of standards that assess the susceptibility of vehicles to electromagnetic fields.

Main Contents of ISO 11452-5:

Scope:
- The standard is intended for testing the immunity of vehicle components to electromagnetic fields in the frequency range of 1 GHz to 18 GHz.
- It applies to components within the vehicle that are exposed to radiated electromagnetic fields, such as sensors, electronic control units (ECUs), and other devices sensitive to electromagnetic interference.
Test Setup:
- It provides the setup for the test environment, including the antenna placement, the distance between the transmitter and the device under test (DUT), and the alignment to ensure accurate exposure to the electromagnetic field.
- The field strength and frequency range are carefully controlled during the test.
Test Procedure:
- Details the procedure for conducting the immunity test, ensuring that the test signal is applied at various power levels to see at what point the vehicle component becomes susceptible to interference.
- The test can include various levels of field strength, typically expressed in volts per meter (V/m).
Performance Criteria:
- Specifies the acceptance criteria for the test, which could include whether the component continues to function normally during or after the exposure to electromagnetic fields.
- Functionality of the DUT during and after the test is the key measure of success. If the component continues to function within the required parameters, it passes the test.
Test Levels:
- Details the radiated test levels to ensure the components can withstand expected field strengths. The test levels and conditions should be appropriate for the specific component and its operating environment.
Documentation and Reporting:
- Requires proper documentation of the test conditions, the test setup, and the results.
- Test reports must include details like the test equipment used, the field strength levels, the frequencies, and the observed effects on the DUT.

Key Points:

Purpose: To verify that automotive electronic components are resistant to electromagnetic interference from external sources.
Frequency Range: 1 GHz to 18 GHz.
Importance: Ensures the functionality and safety of electronic systems in vehicles in environments with strong electromagnetic fields.

If you’re looking for detailed technical information on the test procedures and specifications, the full text of the standard would be required.