【摘要】：隨著人們對(duì)汽車性能要求的提高,各汽車生產(chǎn)商和零部件制造商都在積極將新材料新技術(shù)應(yīng)用到汽車中,電流變技術(shù)在汽車中具有巨大的應(yīng)用潛力,特別是電流變離合器具有可控性好、易于實(shí)現(xiàn)自動(dòng)化、接合柔和等諸多優(yōu)勢(shì),將會(huì)使汽車的整體性能得到大幅度提升。本文結(jié)合吉林省科技廳重大科研項(xiàng)目“經(jīng)濟(jì)型轎車電流變液自動(dòng)離合器的研究開(kāi)發(fā)”,在課題組原有的研究基礎(chǔ)上對(duì)電流變液離合器進(jìn)行了進(jìn)一步的深入研究。本文將行星排引入到了電流變離合器的設(shè)計(jì)中,利用行星排的功率分流作用,大大減輕了電流變液傳遞轉(zhuǎn)矩的負(fù)擔(dān),克服了目前市場(chǎng)上電流變液力學(xué)性能不足的缺點(diǎn),使得本文所設(shè)計(jì)的電流變離合器滿足汽車傳動(dòng)的實(shí)際要求。本文的主要研究?jī)?nèi)容如下:首先根據(jù)電流變液的力學(xué)特性、行星排的運(yùn)動(dòng)學(xué)和力學(xué)特性,分析了在電流變離合器中引入行星排的可行性及優(yōu)勢(shì),設(shè)計(jì)了電流變離合器的總體結(jié)構(gòu)方案,并詳細(xì)闡述了其工作原理。接著根據(jù)汽車傳動(dòng)系統(tǒng)的轉(zhuǎn)矩需求和變速器中實(shí)際空間的大小,設(shè)計(jì)了行星排和電流變傳動(dòng)機(jī)構(gòu)的具體結(jié)構(gòu),主要包括行星排中各個(gè)構(gòu)件主要參數(shù)的計(jì)算、齒輪的接觸強(qiáng)度和彎曲強(qiáng)度的校核;分析了電流變傳動(dòng)機(jī)構(gòu)的尺寸參數(shù)對(duì)其轉(zhuǎn)矩傳遞能力和漏電流等性能的影響,并據(jù)此設(shè)計(jì)了電流變傳動(dòng)機(jī)構(gòu)的具體結(jié)構(gòu),主要包括基本傳動(dòng)裝置、高壓加載裝置和輔助裝置,在此基礎(chǔ)上,完成了電流變離合器的結(jié)構(gòu)集成設(shè)計(jì)。然后根據(jù)汽車發(fā)動(dòng)機(jī)參數(shù)、整車相關(guān)參數(shù)、電流變離合器的結(jié)構(gòu)參數(shù),建立了整車動(dòng)力學(xué)數(shù)學(xué)模型;確定在汽車起步和換擋過(guò)程中采用模糊控制策略對(duì)電流變離合器進(jìn)行控制,并在Matlab/Simulink軟件中對(duì)所制定的控制策略進(jìn)行了仿真分析,以驗(yàn)證控制策略的有效性。最后加工制作了電流變離合器的全尺寸樣機(jī),并搭建了電流變離合器的試驗(yàn)臺(tái)架,通過(guò)試驗(yàn)研究電流變離合器的相關(guān)性能,主要研究了電流變離合器的接合特性、零場(chǎng)轉(zhuǎn)矩特性和溫升特性,以驗(yàn)證電流變離合器能夠滿足實(shí)際使用要求。電流變離合器具有傳統(tǒng)摩擦式離合器無(wú)法比擬的優(yōu)點(diǎn),具有非常廣闊的應(yīng)用前景,在電流變離合器中引入行星排,克服了目前電流變液力學(xué)性能不足的缺陷,對(duì)實(shí)現(xiàn)電流變離合器商品化有一定的意義。
[Abstract]:With the improvement of vehicle performance requirements, automobile manufacturers and component manufacturers are actively applying new materials and new technologies to automobiles, and electrorheological technology has great application potential in automobiles. Especially, the electrorheological clutch has many advantages, such as good controllability, easy to realize automation, soft joint and so on, which will greatly improve the overall performance of the automobile. Based on the important scientific research project of Jilin Provincial Science and Technology Department, "Research and development of electrorheological fluid automatic clutch of economical car", this paper makes further research on electrorheological fluid clutch on the basis of the original research by the research group. In this paper, the planet row is introduced into the design of the electrorheological clutch. By using the power shunt of the planetary row, the burden of the transmission torque of the electrorheological fluid is greatly reduced, and the shortcomings of the mechanical properties of the electrorheological fluid in the market are overcome. The electrorheological clutch designed in this paper can meet the actual requirements of the automobile transmission. The main contents of this paper are as follows: firstly, according to the mechanical properties of electrorheological fluids, the kinematics and mechanical properties of planetary row, the feasibility and advantages of introducing planetary row into ERF clutch are analyzed. The general structure of electrorheological clutch is designed and its working principle is described in detail. Then according to the torque requirement of the automobile transmission system and the actual space in the transmission, the specific structure of the planetary row and the electrorheological transmission mechanism is designed, which mainly includes the calculation of the main parameters of each component in the planetary row. Check the contact strength and bending strength of gear; This paper analyzes the influence of the dimension parameters of the electrorheological transmission mechanism on its torque transfer capacity and leakage current, and designs the specific structure of the electrorheological transmission mechanism, which includes the basic transmission device, the high-voltage loading device and the auxiliary device. On this basis, the structure integration design of electrorheological clutch is completed. Then, according to the parameters of the engine, the related parameters of the whole vehicle and the structural parameters of the electrorheological clutch, the mathematical model of the vehicle dynamics is established. In order to verify the effectiveness of the control strategy, the fuzzy control strategy is used to control the ERF clutch in the starting and shifting process of the vehicle. The simulation analysis of the control strategy is carried out in Matlab/Simulink software to verify the effectiveness of the control strategy. Finally, the full-size prototype of electrorheological clutch is made, and the test stand of electrorheological clutch is set up. Through the experiment, the correlativity of electrorheological clutch is studied, and the joint characteristic of ER clutch is mainly studied. The zero-field torque and temperature-rise characteristics are used to verify that the ERF clutch can meet the practical requirements. The electrorheological clutch has the advantages that the traditional friction clutch can not compare, and has a very broad application prospect. The introduction of planetary row in the electrorheological clutch overcomes the deficiency of the mechanical properties of the electrorheological fluid at present. It has certain significance to realize the commercialization of electrorheological clutch.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：U463.2

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