In the RE test process of EMC, these three values respectively represent the meaning of: average detection: its characteristics are the same number of detector charge and discharge, especially suitable for continuous wave measurement. Peak detection: The number of charging intervals even narrow pulses can quickly charge stable values. Quasi-peak detection: the number between the burst points of the geophone is between the average value and the peak value, and the transmission of the geophone during the measurement period is consistent with the pulse amplitude and the pulse repetition frequency.
In the RE test process of EMC, the peak value, quasi-peak value, and average value are respectively representedDegree test, EMI conducted emission test, transient emission conduction test, transient immunity test, high current injection test, TEM chamber test, strip line test, electrostatic discharge immunity test, etc.
In the validation test, BMW EMC tests the electromagnetic "immune system" of the new BMW 5 Series with nearly 5 times the industry standard limit test. Aviation-level EMC testing ensures safe operation of vehicle electronic systems in strong magnetic fields and reduces electromagnetic effects on the human body.
Electric drive system, mainly including motor, motor controlBrake and reducer. In a system that is not highly integrated, there is also a high-voltage power cable between the motor control, so that the input cable is also added.
In the rapid development of the automotive industry, electromagnetic compatibility (EMC) problems are becoming more and more prominent, and the strategic position of laboratory construction can not be ignored. EMC LABS are built in two levels, parts and vehicles, and their core elements include rigorous testing environment and efficient working systems. The careful creation of the test environment is first and foremost the dark room design, which requires absolute electromagnetic interference shielding to ensure the accuracy of the test results.
EMC realThe final part of the media tour was the EMC Lab. It is understood that BYD began to build an EMC laboratory in Shanghai in 2004, and is an early EMC test enterprise in the domestic automotive industry. At present, the EMC laboratory has perfect electromagnetic harassment and anti-interference testing capabilities of automotive electronic parts and systems, which meet the requirements of national standards, international standards and regulations, and can carry out EMC research and development tests and certification tests of fuel vehicles and electric vehicle parts.