Electro-Magnetic Compatibility, EMC
Mainly includes the following 3 parts
◎Electromagnetic immunity (EMI)
This part mainly studies the ability of the car to resist interference from external electromagnetic sources. The main purpose is to add a "firewall" to the car to shield the external electromagnetic interference signals to protect the internal circuits, display devices and dashboards of the car. This part also studies the problem of mutual interference between on-board electronic products so that the various devices can coordinate with each other.
◎Electromagnetic shielding (EMQ)
This part mainly studies the interference of electromagnetic waves emitted by automotive electronic equipment on the surrounding environment. Many electronic devices in the car, such as wipers, generators, etc., will generate a large amount of electromagnetic waves, which will interfere with and damage the precision electronic equipment in the surrounding environment. The main purpose of this part is to find a way to eliminate the electromagnetic garbage generated by the car.
◎Radio frequency coordination
The radio, navigation system and TV system inside the car all need a certain frequency to receive external signals. This part is mainly used to optimize the frequency allocation problem between automotive electronic equipment. So that they will not conflict and interfere with each other.
In the future, all new models of Renault will be tested in this laboratory to provide the best electromagnetic compatibility performance. And because of the alliance between Renault and Nissan, the development of Nissan's new models will also be completed with the help of this laboratory.
Introduction to automotive electromagnetic compatibility terms
◎Electromagnetic interference (EMI): Any electromagnetic phenomenon that may reduce the performance of a device, equipment or system, or may have adverse effects on organisms or substances. Generally speaking, electromagnetic interference can be divided into two types: radiated interference and conducted interference.
◎Electromagnetic tolerance (EMS): The degree to which the performance of a device, equipment or system will not be degraded in an electromagnetic environment.
◎Electromagnetic compatibility (EMC): The ability of a device or system to operate normally in an electromagnetic environment and not to produce unbearable electromagnetic interference to any equipment in this environment. Applying this explanation to vehicles, electromagnetic interference (EMI) refers to the electromagnetic energy emitted by various electrical and electronic components on the vehicle under normal operation, which affects other objects; electromagnetic tolerance (EMS) refers to the ability of the vehicle to operate normally without its performance being affected by external electromagnetic energy and causing significant changes (such as unexpected acceleration).
