智能MOSFET在汽车电子系统中的应用

吉林大学学报(信息科学版)

智能MOSFET在汽车电子系统中的应用

张金鹏¹，隋建鹏²，江进¹，刘鹏飞¹，孙鹏¹，王莹¹

1．中国第一汽车集团有限公司解放事业本部商用车开发院电子电气开发部，长春130011;2．中国第一汽车股份有限公司研发总院，长春130011

收稿日期:2018-03-06 出版日期:2018-07-24
作者简介:张金鹏( 1984— ) ，男，长春人，中国第一汽车集团有限公司工程师，主要从事电路及硬件设计研究，( Tel) 86- 15904400204( E-mail) zhangjinpeng@ rdc． faw． com． cn。
基金资助:
中国一汽CA6DM3 国VI 发动机开发基金资助项目( A1601)

Application of Smart MOSFET in Automotive Electronic Systems

ZHANG Jinpeng¹，SUI Jianpeng²，JIANG Jin¹，LIU Pengfei¹，SUN Peng¹，WANG Ying¹

1． China FAW Corporation Limited Jiefang Business Division，Commercial Vehicle Development Institute Electric /Electronic Dept，Changchun 130011，China; 2． General Ｒ＆ D Institute，China FAW Corporation Limited，Changchun 130011，China

Received:2018-03-06 Online:2018-07-24

摘要/Abstract

摘要： 针对智能MOSFET( Metal-Oxide-Semiconductor Field-Effect Transistor) 在汽车电子系统应用中遇到的问题，提出了相应的技术解决方案: 针对智能MOSFET 在电源反接、短路、过载以及抛负载工况下的损坏问题，提出了硬件保护电路及软件控制策略; 针对智能MOSFET 的电流反馈精度差，无法满足控制精度，提出通过标定提高检测精度的方法。通过并联智能MOSFET 降低导通电阻，提高了回路的通流能力。通过在负载两端并联TVS( Transient Voltage Suppressor) ，解决了智能MOSFET 钳位能量能力不足问题。通过试验及实车测试，验证了方案的可行性和有效性。

关键词: 机械式继电器, 短路保护, 通流能力, 钳位能量, 智能MOSFET

Abstract: In view of problems encountered in the application of intelligent MOSFET ( Metal-Oxide-Semiconductor Field-Effect Transistor) in automotive electronic system，the corresponding technical solutions are put forward． Aiming at the damage problems of Smart MOSFET under the condition of power reverse，short circuit，over load and load dump，the hardware protection circuit and software control strategy are put forward．Aiming at the low current feedback accuracy of Smart MOSFET，which can not meet the control accuracy，the method of improving the sensing accuracy through calibration is put forward． The on-resistance is reduced by parallel Smart MOSFET to improve the current capacity． To increase the capacity of the clamping energy，a TVS (Transient Voltage Suppressor) is connected with smart MOSFET in parallel． The feasibility and validity of the schemes are verified by experiments and real automotive tests．

Key words: electromechanical relay, shortcircuit protection, flow capacity, smart metal-oxide-semiconductor field-effect transistor( MOSFET) , clamping energy capacity

中图分类号:

TP206． 3

张金鹏，隋建鹏，江进，刘鹏飞，孙鹏，王莹. 智能MOSFET在汽车电子系统中的应用[J]. 吉林大学学报(信息科学版), 2018, 36(4): 392-397.

ZHANG Jinpeng，SUI Jianpeng，JIANG Jin，LIU Pengfei，SUN Peng，WANG Ying. Application of Smart MOSFET in Automotive Electronic Systems[J]. Journal of Jilin University(Information Science Ed, 2018, 36(4): 392-397.