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车辆线缆瞬态电磁脉冲耦合仿真与抑制技术

王震 蔡金良 秦风 扈泽正

王震, 蔡金良, 秦风, 等. 车辆线缆瞬态电磁脉冲耦合仿真与抑制技术[J]. 强激光与粒子束. doi: 10.11884/HPLPB202133.210227
引用本文: 王震, 蔡金良, 秦风, 等. 车辆线缆瞬态电磁脉冲耦合仿真与抑制技术[J]. 强激光与粒子束. doi: 10.11884/HPLPB202133.210227
Wang Zhen, Cai Jinliang, Qin Feng, et al. Vehicle cable electromagnetic pulse coupling simulation and suppression[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202133.210227
Citation: Wang Zhen, Cai Jinliang, Qin Feng, et al. Vehicle cable electromagnetic pulse coupling simulation and suppression[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202133.210227

车辆线缆瞬态电磁脉冲耦合仿真与抑制技术

doi: 10.11884/HPLPB202133.210227
基金项目: 国防预研项目(30105140302)
详细信息
    作者简介:

    王震:王 震(1991—),男,硕士,研究实习员,从事电子系统电磁环境适应性评估研究

    通讯作者:

    蔡金良(1987—),女,博士,助理研究员,从事电子系统电磁脉冲效应研究

  • 中图分类号: TN97

Vehicle cable electromagnetic pulse coupling simulation and suppression

  • 摘要: 瞬态电磁脉冲可通过车辆互联线缆耦合至电子系统内部,造成电子设备受扰甚至损毁,研究瞬态防护器件对电磁脉冲的抑制特性可为车辆电磁防护设计与实施提供有力支撑。本文以发动机电控系统为研究对象,考虑关键金属结构、线缆与电子设备,建立发动机电磁仿真模型,计算获取了瞬态电磁脉冲作用下线缆端口耦合干扰特性;基于电磁脉冲注入方法设计并搭建了瞬态防护器件测试平台,获取了瞬态电压抑制器与压敏电阻两类典型瞬态防护器件的响应时间、钳位电压、尖峰泄露等响应特性;在仿真与测试结果的基础上,选取一型瞬态电压抑制器应用于凸轮轴位置传感器信号线的电磁防护。研究结果表明,该型瞬态电压抑制器对线缆瞬态电磁脉冲耦合干扰抑制能力接近20 dB,置于滤波器前端可有效抑制线缆耦合干扰,保护终端设备。
  • 图  1  车辆发动机电磁仿真模型

    Figure  1.  Electromagnetic simulation model of vehicle engine

    图  2  核电磁脉冲时域和频域波形

    Figure  2.  HEMP waveform and spectrum

    图  3  线缆端口耦合电压时域波形

    Figure  3.  Coupling disturb of cable end

    图  4  线缆端口耦合电压频域波形

    Figure  4.  Spectrum of disturb of at cable ends

    图  5  电快速瞬变脉冲时域波形和频域波形

    Figure  5.  Electrical fast transient waveform and spectrum

    图  6  瞬态防护器件测试夹具

    Figure  6.  Test fixture of transient protection device

    图  7  试验布置

    Figure  7.  Experimental layout

    图  8  不同EFT脉冲峰值电压下TVS泄露电压波形

    Figure  8.  TVS leakage voltage under EFT

    图  9  不同EFT脉冲峰值电压下MOV泄露电压波形

    Figure  9.  MOV leakage voltage under EFT

    图  10  PCI试验布置

    Figure  10.  PCI experimental layout

    图  11  TVS对凸轮轴位置传感器信号线耦合抑制

    Figure  11.  Camshaft position sensor signal cable coupling suppress of PCI

    表  1  受试瞬态器件型号

    Table  1.   Transient device under test

    type.model
    MOVV130LA1P
    VGAH121026H560
    TVS1.5KE27CA
    TP5.0SMDJ15A
    下载: 导出CSV

    表  2  瞬态器件EFT响应特性对比

    Table  2.   Transient device response character under EFT

    No.response time@4 kV/nsclamp voltage@4 kV/Vleak voltage peak value@4 kV/V
    V130LA1P6.4356.0558.4
    VGAH121026H5606.382.4129.0
    1.5KE27CA3.244.3372
    TP5.0SMDJ15A4.716.549.3
    下载: 导出CSV

    表  3  不同电压下TVS抑制效果

    Table  3.   TVS suppress efficiency under different PCI peak value

    PCI set voltage/kVcable coupling peak voltage/Vleak peak voltage/Vsuppress efficiency/dB
    56869017.6
    10136020216.6
    16221343514.1
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-06-08
  • 修回日期:  2021-08-13
  • 网络出版日期:  2021-09-06

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