本文選題：混合動(dòng)力客車(chē) + AMT�。� 參考：《吉林大學(xué)》2016年碩士論文

【摘要】：在我國(guó)主要城市中,公交客車(chē)盡管在汽車(chē)總量中占有量較少,但排放的污染物卻相當(dāng)大,而混合動(dòng)力公交車(chē)具有高效節(jié)能、環(huán)保減排的優(yōu)勢(shì),因而對(duì)其的大力發(fā)展具有十分深遠(yuǎn)的意義�？蛙�(chē)運(yùn)行工況較復(fù)雜,行駛過(guò)程中換擋頻繁,駕駛強(qiáng)度較大,況且一般的混合動(dòng)力客車(chē)裝備電機(jī)系統(tǒng)與發(fā)動(dòng)機(jī)系統(tǒng),其在不同模式下會(huì)有不同換擋策略,這進(jìn)一步增加了手動(dòng)換擋的難度。裝有自動(dòng)變速器的客車(chē)可以根據(jù)道路條件、車(chē)輛行駛狀況自動(dòng)變換擋位,減輕了駕駛員的負(fù)擔(dān)。就多種自動(dòng)變速器而言,機(jī)械式自動(dòng)變速器(Automated Mechanical Transmission,簡(jiǎn)稱AMT)不但具有結(jié)構(gòu)簡(jiǎn)單、成本低及傳動(dòng)效率高的優(yōu)勢(shì),而且優(yōu)秀控制策略下的AMT傳動(dòng)系統(tǒng)還能極大改善客車(chē)節(jié)能效益與尾氣排放,因此是混合動(dòng)力客車(chē)?yán)硐氲倪x擇。由于AMT本身結(jié)構(gòu)的限制,其換擋時(shí)存在動(dòng)力中斷,換擋沖擊等缺陷會(huì)嚴(yán)重影響乘坐舒適性。因此,本文以單行星排動(dòng)力耦合的并聯(lián)混合動(dòng)力客車(chē)為研究平臺(tái),對(duì)其AMT換擋過(guò)程的控制進(jìn)行研究,以改善其換擋品質(zhì)。本文主要內(nèi)容如下:(1)分析單行星排動(dòng)力耦合混合動(dòng)力系統(tǒng)的結(jié)構(gòu)特點(diǎn)。運(yùn)用模擬杠桿法得出行星齒輪機(jī)構(gòu)的轉(zhuǎn)速和轉(zhuǎn)矩特性。在此基礎(chǔ)上對(duì)該混合動(dòng)力系統(tǒng)的8種工作模式分別進(jìn)行了具體分析,為AMT換擋控制策略的制定奠定基礎(chǔ)。(2)該結(jié)構(gòu)混合動(dòng)力客車(chē)可以根據(jù)有無(wú)濕式離合器參與操作,將不同驅(qū)動(dòng)模式下?lián)Q擋控制分為兩類。本文針對(duì)轉(zhuǎn)速耦合驅(qū)動(dòng)模式(換擋無(wú)離合器操作)與發(fā)動(dòng)機(jī)單獨(dú)驅(qū)動(dòng)模式(換擋有離合器操作)分別建立了傳動(dòng)系統(tǒng)的動(dòng)力學(xué)模型,并對(duì)換擋過(guò)程各個(gè)階段進(jìn)行了詳細(xì)的動(dòng)力學(xué)分析。根據(jù)相應(yīng)的換擋評(píng)價(jià)指標(biāo),指出了換擋過(guò)程各階段影響換擋品質(zhì)的因素。(3)確定上述兩種模式下?lián)Q擋控制策略。其中轉(zhuǎn)速耦合模式下,通過(guò)對(duì)發(fā)動(dòng)機(jī)節(jié)氣門(mén)開(kāi)度的控制與電機(jī)主動(dòng)調(diào)速來(lái)保證較好的換擋品質(zhì);在發(fā)動(dòng)機(jī)單獨(dú)驅(qū)動(dòng)模式下,換擋過(guò)程涉及濕式離合器操作,通過(guò)分析濕式離合器的工作特性,本文對(duì)其建立了模糊控制法則來(lái)改善其結(jié)合品質(zhì)。另外,還利用Stateflow建立自動(dòng)換擋邏輯控制系統(tǒng)。(4)本文基于Matlab/Simulink與AMESim聯(lián)合仿真平臺(tái),分別建立發(fā)動(dòng)機(jī)單獨(dú)驅(qū)動(dòng)模式一、二擋之間升、降的仿真模型和轉(zhuǎn)速耦合驅(qū)動(dòng)模式三、四擋之間升、降的仿真模型,然后對(duì)仿真結(jié)果進(jìn)行分析。離線仿真完成后,通過(guò)搭建Moto Tron實(shí)時(shí)仿真平臺(tái)進(jìn)行硬件在環(huán)測(cè)試,驗(yàn)證控制策略的可靠性和仿真模型的準(zhǔn)確性。
[Abstract]:In the major cities of our country, although the bus has a small share in the total amount of vehicles, but the emission of pollutants is quite large, and hybrid electric buses have the advantages of high efficiency, energy saving, environmental protection and emission reduction. Therefore, its vigorous development has a very profound significance. The running condition of the bus is more complicated, the shift is frequent and the driving intensity is high. Besides, the general hybrid electric bus equipped with motor system and engine system will have different shifting strategies in different modes. This further increases the difficulty of manual shift. The passenger car equipped with automatic transmission can automatically change the gear according to the road conditions and reduce the burden on the driver. For many kinds of automatic transmission, mechanical automatic transmission (AMTT) not only has the advantages of simple structure, low cost and high transmission efficiency, but also has the advantages of simple structure, low cost and high transmission efficiency. Moreover, the AMT transmission system with excellent control strategy can greatly improve the energy efficiency and exhaust emission of passenger cars, so it is an ideal choice for hybrid electric passenger cars. Because of the limitation of the structure of AMT, there is a power outage in its shift, and some defects, such as shift impact, will seriously affect the ride comfort. Therefore, in order to improve the shift quality, the control of the AMT shift process is studied on the platform of the parallel hybrid electric bus with single planet and row power coupling. The main contents of this paper are as follows: 1) the structural characteristics of a single planetary exhaust dynamic coupled hybrid power system are analyzed. The rotational speed and torque characteristics of the planetary gear mechanism are obtained by using the simulation lever method. On the basis of this, the 8 working modes of the hybrid power system are analyzed in detail, which lays a foundation for the formulation of AMT shift control strategy.) the hybrid electric bus with this structure can be operated according to the wet clutch or not. The shift control in different driving modes is divided into two categories. In this paper, the dynamic models of transmission system are established for speed coupling drive mode (shift clutch free operation) and engine single drive mode (shift clutch operation). The dynamics of the shift process is analyzed in detail. According to the corresponding gearshift evaluation index, the paper points out the factors that affect the shift quality in each stage of the shift process) and determines the shift control strategy under the above two modes. In the rotating speed coupling mode, the throttle opening of the engine is controlled and the motor actively regulates the speed to ensure the better shift quality. In the single drive mode of the engine, the shift process involves the operation of the wet clutch. By analyzing the working characteristics of wet clutch, a fuzzy control rule is established to improve its binding quality. In addition, the automatic shift logic control system is established by using Stateflow.) based on the Matlab/Simulink and AMESim joint simulation platform, the simulation model of the single drive mode, the rise and fall between the second gear and the speed coupling drive mode 3 are established respectively in this paper. The simulation model of rise and fall between four gears, and then analyze the simulation results. After the off-line simulation is completed, the reliability of the control strategy and the accuracy of the simulation model are verified by setting up the Moto Tron real-time simulation platform for hardware in-loop testing.
【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)】：U469.7

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