Study of Electrical Transient Conduction Pulses Along Power Lines based on Centralized Electrical and Electronic Architecture
For the electromagnetic transient conduction immunity test of automotive electronics along the power line,ISO 7637-2 standard specifies typical pulse waveforms and test requirements for various modes,but it cannot cover all types of transients in vehicles.With the development of new energy vehicles,the automotive electronic electrical architecture has shifted from a distributed architecture to a centralized domain control architecture,and the power supply method is also different from the traditional one.This paper first analyzes the impact of the centralized architecture on the typical pulse waveforms specified in the standard,then collects some transient pulse waveforms on the power line under the domain control architecture in real vehicles,and fits these pulse waveforms.Finally,the fitted waveforms are injected into the entire vehicle electrical components using the autowave device,verifying that these pulse waveforms can cause interference problems for some electrical components.Therefore,it is necessary to design preventive measures for abnormal pulses during product development,and eliminate potential risks from the source.Automobile manufacturers and component suppliers should also pay more attention to the electromagnetic compatibility risks under the new electrical architecture.
万方数据
维普
