【摘要】：隨著我國(guó)工業(yè)制造業(yè)和信息技術(shù)的飛速發(fā)展，汽車(chē)已經(jīng)成為人們生活中的必需品。而隨著人們對(duì)于汽車(chē)各方面性能的不斷提升以及法律法規(guī)對(duì)汽車(chē)尾氣排放等要求的日益嚴(yán)格，發(fā)動(dòng)機(jī)控制技術(shù)得到越來(lái)越廣泛和深入的發(fā)展。針對(duì)目前最先進(jìn)的高壓共軌燃油噴射系統(tǒng)國(guó)內(nèi)并沒(méi)有自主的知識(shí)產(chǎn)權(quán)這一問(wèn)題，本文對(duì)該系統(tǒng)軟件國(guó)產(chǎn)化中的噴油控制策略實(shí)現(xiàn)進(jìn)行了開(kāi)創(chuàng)性的設(shè)計(jì)。 文章針對(duì)高壓共軌燃油噴射系統(tǒng)實(shí)現(xiàn)中需要涉及的問(wèn)題，研究了高壓共軌系統(tǒng)的相關(guān)知識(shí)。在闡述了高壓共軌系統(tǒng)的基本概念、原理和方法的基礎(chǔ)上，，介紹了該系統(tǒng)的相關(guān)技術(shù)；針對(duì)噴油控制分析了PID控制算法，分別利用位置型PID和增量型PID對(duì)系統(tǒng)的數(shù)據(jù)和過(guò)程進(jìn)行建模；給出了系統(tǒng)的控制策略設(shè)計(jì)，并設(shè)計(jì)了噴油控制結(jié)構(gòu)的實(shí)現(xiàn)方法，對(duì)工況識(shí)別的狀態(tài)轉(zhuǎn)移進(jìn)行了仿真；實(shí)現(xiàn)了硬件在回路仿真。 基于高壓共軌燃油噴射系統(tǒng)仿真結(jié)果表明，經(jīng)過(guò)中心算法修正的增量型PID控制策略能夠很好的實(shí)現(xiàn)對(duì)燃油的利用率以及降低尾氣排放，達(dá)到了預(yù)期目的。為今后整體系統(tǒng)的臺(tái)架實(shí)驗(yàn)以及商業(yè)化生產(chǎn)提供了理論依據(jù)與實(shí)際的支持。
[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.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：U464.136

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