【摘要】：隨著科學(xué)技術(shù)的發(fā)展,無(wú)級(jí)變速器(CVT)越來(lái)越多的應(yīng)用于現(xiàn)代汽車(chē)。本課題以純機(jī)械電子式無(wú)級(jí)變速器EMCVT (Electronic Mechanical Continuously Variable Transmission)為研究對(duì)象,拋棄了不夠理想的液壓系統(tǒng),具有很大的研究?jī)r(jià)值和發(fā)展空間。為了能夠使EMCVT發(fā)揮其功效,需要開(kāi)發(fā)一套使EMCVT汽車(chē)具有良好操控性、駕駛舒適并具有理想的動(dòng)力性和燃油經(jīng)濟(jì)性的控制系統(tǒng)。根據(jù)EMCVT機(jī)械結(jié)構(gòu)和變速原理,控制系統(tǒng)就是要控制速比控制電機(jī)和離合器控制電機(jī)。 EMCVT控制系統(tǒng)調(diào)試最簡(jiǎn)單有效的方式,就是將EMCVT直接安裝到試驗(yàn)臺(tái)架和汽車(chē)上進(jìn)行實(shí)驗(yàn),但是臺(tái)架試驗(yàn)和車(chē)載試驗(yàn)的試驗(yàn)周期都比較長(zhǎng),需要的試驗(yàn)設(shè)備多,成本很高,不利于控制系統(tǒng)的改進(jìn),而且現(xiàn)場(chǎng)試驗(yàn)難實(shí)現(xiàn)一些極端情況,甚至?xí)幸恍┪ｋU(xiǎn)發(fā)生。因此,本文根據(jù)現(xiàn)場(chǎng)試驗(yàn)情況通過(guò)對(duì)硬件在環(huán)仿真(Hardware-in-the-loop Simulation-HILS)理論的研究,開(kāi)發(fā)了用于EMCVT控制系統(tǒng)初期調(diào)試的硬件在環(huán)仿真試驗(yàn)平臺(tái)(HILSP),它為控制系統(tǒng)提供了虛擬調(diào)試環(huán)境,使得控制系統(tǒng)初期調(diào)試只需要在實(shí)驗(yàn)室就能夠完成。 本課題來(lái)源于遼寧省科學(xué)技術(shù)計(jì)劃工業(yè)攻關(guān)重點(diǎn)項(xiàng)目：車(chē)用無(wú)級(jí)變速器實(shí)驗(yàn)與控制關(guān)鍵技術(shù)攻關(guān),并根據(jù)EMCVT的控制系統(tǒng)和現(xiàn)場(chǎng)的臺(tái)架試驗(yàn)和車(chē)載試驗(yàn),本文首先分析了EMCVT的機(jī)械結(jié)構(gòu),同時(shí)根據(jù)機(jī)械結(jié)構(gòu)和試驗(yàn)數(shù)據(jù)建立了發(fā)動(dòng)機(jī)模型、EMCVT模型、汽車(chē)負(fù)載模型,并在Matlab/Simulink中驗(yàn)證這些模型的可行性,用數(shù)學(xué)模型實(shí)現(xiàn)控制系統(tǒng)的離線(xiàn)調(diào)試。 其次,通過(guò)對(duì)硬件在環(huán)仿真理論的研究,本文編寫(xiě)了基于LabVIEW的硬件在環(huán)仿真程序,使仿真程序與控制系統(tǒng)實(shí)現(xiàn)實(shí)時(shí)通訊,具有控制系統(tǒng)調(diào)試功能。 最后,編寫(xiě)友好的硬件在環(huán)仿真程序人機(jī)交互界面,方便、清晰的顯示出當(dāng)前車(chē)載試驗(yàn)狀態(tài),并通過(guò)仿真試驗(yàn)分析了開(kāi)發(fā)的硬件在環(huán)仿真平臺(tái)能夠滿(mǎn)足控制系統(tǒng)需求,達(dá)到控制系統(tǒng)初期調(diào)試目的。
[Abstract]:With the development of science and technology, continuously variable transmission (CVT) is more and more used in modern automobile. This subject takes the pure mechanical electronic stepless transmission EMCVT (Electronic Mechanical Continuously Variable Transmission) as the research object, abandons the not ideal hydraulic system, has the great research value and the development space. In order to enable EMCVT to play its role, it is necessary to develop a set of control system which can make EMCVT car have good handling, comfortable driving and ideal power and fuel economy. According to EMCVT mechanical structure and variable speed principle, the control system is to control the speed ratio control motor and clutch control motor. The simplest and effective way to debug the EMCVT control system is to install the EMCVT directly on the test bench and the automobile to carry on the experiment, but the test period of the bench test and the on-board test is relatively long, the test equipment required is more, and the cost is very high. It is not conducive to the improvement of the control system, and the field test is difficult to achieve some extreme situations, and even some dangers occur. Therefore, according to the field test, the hardware-in-the-loop simulation (Hardware-in-the-loop Simulation-HILS) theory is studied, and the hardware-in-loop simulation test platform (HILSP),) is developed for the initial debugging of EMCVT control system. It provides a virtual debugging environment for the control system, so that the initial debugging of the control system only needs to be completed in the laboratory. This topic comes from the key project of Liaoning province science and technology plan industrial key problem: vehicle CVT experiment and control key technology, and according to EMCVT control system and field bench test and on-board test, In this paper, the mechanical structure of EMCVT is firstly analyzed, and the engine model, EMCVT model and vehicle load model are established according to the mechanical structure and test data, and the feasibility of these models is verified in Matlab/Simulink. The off-line debugging of control system is realized by mathematical model. Secondly, through the research of hardware-in-loop simulation theory, the hardware-in-the-loop simulation program based on LabVIEW is compiled in this paper, which makes the simulation program communicate with the control system in real time and has the debugging function of the control system. Finally, the friendly man-machine interface of hardware-in-the-loop simulation program is compiled to display the current vehicle test status conveniently and clearly. The hardware-in-the-loop simulation platform developed can meet the requirements of the control system through simulation experiments. Achieve the purpose of initial debugging of the control system.
【學(xué)位授予單位】：東北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類(lèi)號(hào)】：TH132.46;TP273

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