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汽车安全与节能学报

汽车安全与节能学报 ›› 2013, Vol. 4 ›› Issue (1): 41-47.DOI: 10.3969/j.issn.1674-8484.2013.01.006

• 汽车节能与环保 • 上一篇    下一篇

汽车电控执行器的充能释能过程与驱动器的电路设计

李建秋，王金力，宋子由，徐梁飞，杨福源，欧阳明高   

  1. 清华大学 汽车安全与节能国家重点实验室，北京 100084
  • 收稿日期:2013-02-02 出版日期:2013-03-25 发布日期:2013-03-27
  • 通讯作者: 李建秋（1972—），男（汉），北京, 教授。E-mail: lijianqiu@tsinghua.edu.cn E-mail:lijianqiu@tsinghua.edu.cn
  • 作者简介:李建秋（1972—），男（汉），北京, 教授。E-mail: lijianqiu@tsinghua.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(51275264); 科技部国际合作项目（2012DFA81190）

Energy charging and discharging process and the drive circuits
design of automotive EC actuators

LI Jianqiu, WANG Jinli, SONG Ziyou, XU Liangfei, YANG Fuyang, OUYANG Minggao   

  1. State Key Laboratory of Automotive Energy and Safety, Tsinghua University, Beijing 100084, China
  • Received:2013-02-02 Online:2013-03-25 Published:2013-03-27

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摘要： 柴油机高压共轨系统的喷射控制电磁阀直接影响多次喷射的性能。因输入/ 输出或者网络传
输等原因，造成时间延迟，因而严重影响汽车电子控制系统的响应性和稳定性。为了缩短执行器驱动
响应时间，本文分析了典型高速强力执行器的充能和释能过程；并给出了释能功率的粗略估计公式。
设计了一种高压驱动电路。在该电路中，为执行器在工作工程的各个阶段，配置不同的续流回路。结
果表明：该电路明显地缩短了执行器的充能和储能过程：将高压共轨系统的喷油器电流上升和下降的
响应时间由原来的500~1 000 μs，缩短到100~300 μs ；从而，加快了控制系统的实时性和灵活性。

关键词: 汽车电子控制(AEC) 系统, 执行器驱动电路, 响应延迟, 续流回路

Abstract: The injector solenoid valve of a diesel common rail system determines the performance of multiinjections.
Time delays caused by the inputs /outputs or the network communications strongly influence the
responsibility and stability of automotive electronic control (EC) systems. This paper analyzes the energizing
and dis-energizing processes of a typical high speed actuator, and presents an equation to estimate the energy
release rate. A drive circuit with high voltage was designed, in which different freewheel circuits were disposed
in different drive stages. The results show that the driver circuit with high voltages obviously shortens the
energizing and release processes. The current response during the build-up and fall-down of the common-rail
system injector-valve were shorten to 100-300 μs from original 500-1 000 μs. Therefore, the circuit ensures the
real-time performance and flexibility of the control system.

Key words: automotive electronic control (AEC) systems, drive circuit for actuator, response delay, freewheel
circuit

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