發(fā)布時(shí)間：2018-12-28 15:37

【摘要】：現(xiàn)階段,主動(dòng)和半主動(dòng)懸架系統(tǒng)技術(shù)應(yīng)用日益普遍。由于傳統(tǒng)的被動(dòng)式液壓減振器存在油液易乳化、臨界速度低、噪聲大等缺點(diǎn),不再適用于新型懸架系統(tǒng),可調(diào)阻尼減振器的研究便獲得了前所未有的重視。在諸多技術(shù)中,充氣技術(shù)的應(yīng)用使得減振器的工作效果得到了很大的改善,綜合性能更為強(qiáng)大,從而受到了更多人的喜愛。充氣式減振器在高端品牌汽車中被應(yīng)用的比較普遍,使得汽車的性能得到了很大的改善。本文對(duì)一種雙筒充氣式減振器進(jìn)行研究,通過(guò)分析該減振器的結(jié)構(gòu)和工作原理,研究其阻尼特性,對(duì)控制方法進(jìn)行仿真,從而為電控技術(shù)的實(shí)現(xiàn)打下基礎(chǔ)。此外,本文的研究將在一定程度上對(duì)我國(guó)自主研發(fā)的車用減振器起到借鑒作用。本文首先對(duì)可調(diào)阻尼減振器作了充分的介紹,闡述了其發(fā)展歷史和目前對(duì)該減振器的研究現(xiàn)狀,并對(duì)不同種類的減振器的優(yōu)缺點(diǎn)進(jìn)行了分析。其中,重點(diǎn)對(duì)雙筒手動(dòng)可調(diào)減振器進(jìn)行了研究和闡述,并對(duì)該減振器的主要性能以及技術(shù)參數(shù)進(jìn)行了介紹。其次,本文在研究過(guò)程中,充分借鑒流體力學(xué)理論知識(shí),建立了雙筒手動(dòng)阻尼可調(diào)減振器的數(shù)學(xué)模型,并進(jìn)行MATLAB仿真分析,通過(guò)得到的一系列數(shù)據(jù)和曲線圖,分析了減振器各個(gè)結(jié)構(gòu)參數(shù)變化對(duì)減振器阻尼值的影響,確定了可控量,從而為模糊PID控制器及電子控制單元設(shè)計(jì)奠定理論基礎(chǔ)。最后針對(duì)雙筒充氣式減振器,設(shè)計(jì)模糊PID控制器,并進(jìn)行Simulink仿真測(cè)試其控制效果,在以上研究?jī)?nèi)容的基礎(chǔ)上,最后提出電控單元設(shè)計(jì)方案,完成了部分硬件電路的設(shè)計(jì)。
[Abstract]:At present, active and semi-active suspension systems are increasingly widely used. Because the traditional passive hydraulic shock absorber has the disadvantages of easy emulsification, low critical speed and high noise, it is no longer suitable for the new suspension system, so the research of adjustable damping damper has been paid more attention than ever. In many technologies, the application of inflatable technology has greatly improved the working effect of shock absorber, and the comprehensive performance is more powerful, so it has been loved by more people. Inflatable shock absorber is widely used in high-end brand cars, which greatly improves the performance of cars. In this paper, a double cylinder inflatable shock absorber is studied. By analyzing the structure and working principle of the damper, the damping characteristic of the damper is studied, and the control method is simulated, thus laying a foundation for the realization of electronic control technology. In addition, the research in this paper will be used as a reference for vehicle shock absorber developed independently in our country to some extent. In this paper, the adjustable damping damper is introduced, its development history and current research status are described, and the advantages and disadvantages of different kinds of shock absorbers are analyzed. The main performance and technical parameters of the double cylinder manual adjustable shock absorber are introduced. Secondly, in the course of the research, the mathematical model of double cylinder manual damping adjustable shock absorber is established by referring to the theory of hydrodynamics, and the MATLAB simulation analysis is carried out, and a series of data and curves are obtained. The influence of the structural parameters of the damper on the damping value of the absorber is analyzed, and the controllable quantity is determined, which lays a theoretical foundation for the design of the fuzzy PID controller and the electronic control unit. Finally, the fuzzy PID controller is designed for the double cylinder inflatable shock absorber, and the control effect is tested by Simulink simulation. Based on the above research content, the design scheme of the electronic control unit is put forward, and some hardware circuits are designed.
【學(xué)位授予單位】：長(zhǎng)春工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：U463.33

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