高压共轨燃油喷射系统设计与实现
发布时间：2018-12-19 17:50
【摘要】：随着我国工业制造业和信息技术的飞速发展，汽车已经成为人们生活中的必需品。而随着人们对于汽车各方面性能的不断提升以及法律法规对汽车尾气排放等要求的日益严格，发动机控制技术得到越来越广泛和深入的发展。针对目前最先进的高压共轨燃油喷射系统国内并没有自主的知识产权这一问题，本文对该系统软件国产化中的喷油控制策略实现进行了开创性的设计。 文章针对高压共轨燃油喷射系统实现中需要涉及的问题，研究了高压共轨系统的相关知识。在阐述了高压共轨系统的基本概念、原理和方法的基础上，，介绍了该系统的相关技术；针对喷油控制分析了PID控制算法，分别利用位置型PID和增量型PID对系统的数据和过程进行建模；给出了系统的控制策略设计，并设计了喷油控制结构的实现方法，对工况识别的状态转移进行了仿真；实现了硬件在回路仿真。 基于高压共轨燃油喷射系统仿真结果表明，经过中心算法修正的增量型PID控制策略能够很好的实现对燃油的利用率以及降低尾气排放，达到了预期目的。为今后整体系统的台架实验以及商业化生产提供了理论依据与实际的支持。
[Abstract]:With the rapid development of industrial manufacturing and information technology in China, automobile has become a necessity in people's life. With the continuous improvement of vehicle performance and the increasingly stringent requirements of laws and regulations on vehicle exhaust emissions, engine control technology has been more and more extensive and in-depth development. Aiming at the problem that the most advanced high pressure common rail fuel injection system does not have independent intellectual property right at home, this paper has carried on the pioneering design to the injection control strategy in the software localization of this system. In this paper, the knowledge of high pressure common rail system is studied in view of the problems that need to be involved in the realization of high pressure common rail fuel injection system. Based on the introduction of the basic concepts, principles and methods of the high voltage common rail system, the related technologies of the system are introduced. The PID control algorithm is analyzed for fuel injection control. The data and process of the system are modeled by position PID and incremental PID respectively. The control strategy design of the system is given, and the realization method of the injection control structure is designed, the state transition of the working condition identification is simulated, and the hardware in-circuit simulation is realized. The simulation results based on high pressure common rail fuel injection system show that the incremental PID control strategy modified by the central algorithm can achieve good fuel utilization and reduce exhaust emissions, and achieve the desired purpose. It provides the theoretical basis and practical support for the whole system bench test and commercial production in the future.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U464.136
本文编号：2387256
[Abstract]:With the rapid development of industrial manufacturing and information technology in China, automobile has become a necessity in people's life. With the continuous improvement of vehicle performance and the increasingly stringent requirements of laws and regulations on vehicle exhaust emissions, engine control technology has been more and more extensive and in-depth development. Aiming at the problem that the most advanced high pressure common rail fuel injection system does not have independent intellectual property right at home, this paper has carried on the pioneering design to the injection control strategy in the software localization of this system. In this paper, the knowledge of high pressure common rail system is studied in view of the problems that need to be involved in the realization of high pressure common rail fuel injection system. Based on the introduction of the basic concepts, principles and methods of the high voltage common rail system, the related technologies of the system are introduced. The PID control algorithm is analyzed for fuel injection control. The data and process of the system are modeled by position PID and incremental PID respectively. The control strategy design of the system is given, and the realization method of the injection control structure is designed, the state transition of the working condition identification is simulated, and the hardware in-circuit simulation is realized. The simulation results based on high pressure common rail fuel injection system show that the incremental PID control strategy modified by the central algorithm can achieve good fuel utilization and reduce exhaust emissions, and achieve the desired purpose. It provides the theoretical basis and practical support for the whole system bench test and commercial production in the future.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U464.136
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