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Key Points of the ISO 21780:2020 Standard for Automotive Electronics

Release time:2026-08-27 15:35

ISO 21780:2020

国际标准化组织(International Organization for Standardization,简称ISO)于2020年8月发布了ISO 21780:2020《道路车辆-48V供电电压-电气要求和试验》。

本标准规定了安装在标称电压48 V DC电气系统的道路车辆中的电气和电子组件的要求和试验,包括48V DC电气系统的一般要求、电压范围以及缓慢的电压瞬变和波动(不包括EMC)。

标准中定义了功能状态的5个等级:

·  功能状态1(FS1)- 功能应满足规定的性能,无偏差。不允许性能降低或关闭。

·  功能状态2(FS2)- 该功能应满足规定性能,其规定变化低于或高于FS1的规定性能。允许性能降低,不允许关断。

·  功能状态3(FS3)- 功能可能无法提供规定的性能。允许性能降低或关闭。如果满足必要的操作条件,功能应自动恢复并恢复到规定的性能水平。

·  功能状态4(FS4)- 功能可能无法提供规定的性能。允许性能降低或关闭。只有在车辆运行状态发生变化(例如点火状态改变、车辆重新启动)且满足必要的运行条件后,功能才能恢复并恢复到规定的性能。

·  功能状态5(FS5)- 在应用试验参数时,DUT不能执行一个或多个功能, DUT没有自燃。

试验终止后,除非修理或更换,否则DUT不能继续使用。

上述功能状态,与ISO 16750-2中的5个等级定义所表达的意思基本一致。

标准中,还规定有16个试验项目,分别为:

ISO 21780:2020 16个试验项目

<b>EA-PS800系列 48V系统双极性可编程电源</b>

EA-PS800 系列汽车电子可编程电源可满足ISO 21780:2020标准


RCETEST is a hightech enterprise focusing on electromagnetic compatibility (EMC) testing including independent R&D, manufacturing, sales and fulllifecycle supporting services, and provides professional EMC test instruments and systematic turnkey testing solutions for global customers.
Civilian field: Electrostatic discharge generator, EFT/Burst generator, lightning surge generator, radio frequency conduction anti-interference test system, industrial frequency magnetic field generator, damping oscillation magnetic field generator, alternating voltage drop generator, etc.
Automotive field: Electrostatic discharge generator, 7637 test system, automotive low-voltage electrical performance test system, automotive high-voltage electrical performance test system, high current injection test system, automotive low-frequency magnetic field immunity, radio frequency radiation immunity test system, etc.
Military field: Electrostatic discharge generator, low-frequency conduction immunity test system, onboard power supply characteristics, cable bundle injection test system, low-frequency magnetic field immunity test system, high-speed damping oscillation test system, etc.

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