自動變速器換檔規(guī)律的研究中英文翻譯

1、<p><b>　　外文翻譯</b></p><p>　　the researchs of</p><p>　　amt shifting schedules</p><p>　　Vehicular Automatic Transmission can be divided into three types: Automatic Tra

2、nsmission (AT), Automated Mechanical Transmission (AMT) and Continuously Variable Transmission (CVT). AMT has become a kind of transmission that is full of potentiality, due to its high transfer efficiency, low cost and

3、easiness to manufacture.</p><p>　　The research on AMT shifting performance is key technology in the developing. Shifting performance directly influence the market competition and industrialization of AMT.<

4、;/p><p>　　AMT has good market expectation, but during the shifting procedure, the power must be cut off which causes the poor shifting performance than AT and CVT. Only through improving the shifting performanc

5、e can the commercial competence be established. So the virtual important thing is to find the way to improve shifting performance.</p><p>　　The development of AMT can be divided into three phases: semi-autom

6、atic, automatic and intelligent. The two major part of AMT are: the hardware including the mastered object, executor, sensors and TCU; and the software performing the control strategy.</p><p>　　The performan

7、ce of AT shift influences greatly the performance of the vehicle. So the research on at shift quality is an important problem in the domain of AT researching. Shift quality control of AT is accomplished by electronic and

8、 hydraulic system. To shift smoothly, according the real time throttle valve opening and vehicle speed signal, the controller sends electronic signals to control oil pressure changing curve of the applying elements. this

9、 paper analyzes and research detailed shift qua</p><p>　　Firstly this paper summarizes the existing evaluated quota of shift quality, and fully analyzes and introduces the existing control manner of AT shift

10、 quality.</p><p>　　To meet the needs of research of vehicle starting and the real time control of shift, this paper puts forward a simplified model of engine-torque and a dynamics model of AT shifting proces

11、s. Through the applying of the established model, this paper fully analyzes the process of the AT shifting.</p><p>　　This paper drafts the proper oil pressure changing curve of the applying elements which ca

12、n improve the AT shift quality, and gives the material calculated methods of the AG4 AT. This paper simulates the AG4 AT’s shifting process of 2H to 3H.The results of the simulation validate the established simplified mo

13、dels and the expected oil pressure changing curve.</p><p>　　This paper fully analyzes the mechanism of the pressure regulating and flow controlling system of the AG4 AT, and preparatory discusses the design

14、of the block-diagram of the shift quality control. This paper test the control system and hydraulic system of the AG4 AT by the AT hydraulic-electronic testing-bed. The result of the test validates the correction of thes

15、e analyses.</p><p>　　Automated Mechanical Transmission, as so called AMT, is a new-style transmission system. AMT technology applies the automatic technology to the manual mechanical transmission and makes

16、the selection-gear, shift, clutch and throttle implement automatically. AMT technology is suitable for the situation of our country, and has an expansive market and development foreground. Shift schedules decide the time

17、 to shift and are the soul of the AMT. When the AMT is working, by comparing the states of the</p><p>　　Shifting performance is defined as the extent of swiftness and softness during the procedure of non-pow

18、er shifting and to extend the life of the power train. The index is comfort of passenger, time duration and shock, nine factors maybe influence the shifting performance, and two experimental methods can be used to invest

19、igate the nature of this performance: one is collecting real-time data during road experiment and analyzing them, the other is the simulation of the operation conditions of the </p><p>　　The core of the AMT

20、system is the control strategy, the principle of the clutch engagement, shifting procedure, the choice of control method and the CAN communication between TCU and ECU can influence the shifting performance.</p>&l

21、t;p>　　Shifting schedule is the schedule of auto shifting time between two shifts with controlling parameters. It includes economical and dynamical shifting schedule. At present, shifting schedule of two controlling pa

22、rameters (vehicle speed and opening on throttle) is mainly used. If shifting schedule is not good, shifting will not happen at right time and the working condition of engine will be severe. It will make the sound of engi

23、ne abnormally and stability badly through the whole shifting processi</p><p>　　Controlling goals are engaging quantity and engaging speed. The engaging control of clutch is mainly referred to the control of

24、engaging speed. It is divided into three stages: fast, slow, fast. Shifting quality is directly influenced by the second stage. If engaging harder, it will make shifting concussion, even flame out; if engaging more slow

25、ly, it will make the friction time longer and reduce its longevity. The main controlling parameters are difference between initiative and passive and t</p><p>　　Shifting procedure is the procedure through w

26、orking harmoniously among engine, clutch and transmission. Their cooperation will affect shifting time heavily. In order to decrease the shifting time, the time that is spent on the friction of the clutch should be de

27、creased first. If we intend to increase the time of non-load stage, which helps to minimize the difference of the rotary speed between the driving disc and the driven disc. If we intend to shorten the time of the non-lo

28、ad stage, engag</p><p>　　Influence on shifting performance by hardware</p><p>　　The elements in hardware system are the basis of proper functions of AMT. Executors, sensors, electronic component

29、s, hydraulic systems have influences on shifting performance, the choice of hardware parameters is of vital important to improvement of shifting performance. </p><p>　　With the development of the theory and

30、technology of vehicle, the technical increasingly mature of microprocessor and the extensive application of electronic technique on the car, people have no limit at satisfying the automotive means of transportation only,

31、 facing gradually from the request of the car power, economy and easily manipulating, flexibility, safety, an d the intelligent type of car becomes the focus in the vision of people increasingly. Company’s publicity slog

32、an of" person, car, l</p><p>　　In the development direction of the car intelligence, the intelligence of the automatic gearbox has important effect. But the intelligence of the automatic gearbox embodie

33、s at the establishment of the shift regulation. For the fashion, for satisfying people to the new automotive request, for competitive advantage of the car type, at present, each big factory in world worked very much in s

34、hift regulation of new car type. Among those, the most arresting is AL4 automatic gearbox developed by PEUGE</p><p>　　1. The intelligence degree of the current intelligent gearbox needs to be increased, and

35、 it expresses at that accurate degree to identify environment is not high and to identify the driver’s driving can't give satisfaction.</p><p>　　2. The intelligence function is still not perfect. The int

36、elligent automatically shift system is an open system; it must be continuously perfect and plentiful on the current foundation. Only this way, it can adapt to the driving request of the different drivers, reducing the dr

37、iver’s labor strength, increasing the performance of the whole vehicle.</p><p>　　Conventional design method which used in the structure parameters' design of automobile gear box and synchronizer is a tim

38、e-wasting job and hard work, and it is difficult to get idea design parameters and no good to the enhancement of products qualities. The optimum design of automobile gearbox and synchronizer which take the advantage of c

39、omputers seeking the best structure parameters within constrains is a perfect and high-quality design method. The main target of this article is to set up a o</p><p>　　Synchronizer is a important part of aut

40、omobile gearbox, it make drive gear and driven gear engaged after their synchronized, so it can decrease engaged shock and noise, it can decrease shift forcing and make it comfort to gear shift and increase the life of s

41、ynchronizer. The synchronized process of synchronizer is analyzed in this article; we can receive a satisfaction result through optimizing its influence parameter for instance when the synchronized time is the shortest.

42、 The optimum toolbox </p><p>　　自動變速器換檔規(guī)律的研究</p><p>　　車輛自動變速器通常分為液力機械式自動變速器（簡稱AT）、電控機械式自動變速器（簡稱AMT）和機械式無級變速器（簡稱CVT）。AMT以其傳動效率高、成本低和易于制造等優(yōu)點成為一種具有極具發(fā)展?jié)摿Φ淖詣幼兯倨鳌MT 換檔品質(zhì)的研究則是AMT技術(shù)體系研究中關(guān)鍵的一環(huán)，換檔品質(zhì)的好壞真接

43、影響到AMT產(chǎn)業(yè)化進程及在市場上的競爭能力。</p><p>　　AMT有很好的市場前景，但由于AMT 的換檔過程必需切斷動力，所以其換檔品質(zhì)較AT和CVT要差一些。只有提高AMT的換檔品質(zhì)，使之接近或超過AT、CVT的換檔品質(zhì)，方能在市場上形成競爭力。所以對AMT換檔品質(zhì)的研究就成為AMT 技術(shù)體系研究中關(guān)鍵的一環(huán)。</p><p>　　AMT發(fā)展分為三個階段：半自動的SAMT階段、全自

44、動階段和智能階段。AMT 結(jié)構(gòu)分為硬件和軟件兩部分，硬件系統(tǒng)包括被控對象、執(zhí)行機構(gòu)、傳感器、TCU等；軟件系統(tǒng)由實現(xiàn)控制策略的軟件組成。</p><p>　　自動變速器(AT)的換檔性能的優(yōu)劣對整車性能有很大的影響。自動變速器換檔品質(zhì)問題研究是自動變速箱研究領(lǐng)域中的一個重要研究課題。換檔品質(zhì)的控制通過電液系統(tǒng)來完成?？刂破鞲鶕?jù)實時的油門開度、車速等信號，發(fā)出操縱指令控制換檔結(jié)合元件的油壓變化規(guī)律，實現(xiàn)平穩(wěn)換檔。本

45、文對自動變速器的換檔品質(zhì)控制系統(tǒng)、換檔過程結(jié)合元件油壓變化規(guī)律進行了較深入的分析和研究。</p><p>　　文中首先對換檔品質(zhì)的現(xiàn)有評價方法和指標(biāo)進行了分析和總結(jié)，并對現(xiàn)有AT換檔品質(zhì)的控制方式進行了較為全面的介紹和分析。</p><p>　　提出了一種自動變速器換檔過程分析的等效力學(xué)模型和發(fā)動機一變矩器動力學(xué)簡化模型，以適應(yīng)車輛起步、換檔實時控制研究的需要。應(yīng)用所建立的數(shù)學(xué)模型，對自動

46、變速器的換檔過程進行了詳細(xì)的分析。</p><p>　　制定了適當(dāng)?shù)膿Q檔過渡過程結(jié)合元件的油壓變化規(guī)律，可改變自動變速器的換檔品質(zhì)。對AG4自動變速箱的油壓控制給出了具體的計算方法?？筛纳谱詣幼兯倨鞯膿Q檔品以AG4自動變速箱2H檔到3H檔為例進行了模擬仿真，仿真的結(jié)果對所建立的簡化模型和提出的期望油壓規(guī)律進行了驗證。</p><p>　　詳細(xì)分析了AG4液壓操縱系統(tǒng)的供油調(diào)壓和換檔品質(zhì)控制

47、工作原理。并對換檔品質(zhì)控制的框圖設(shè)計做了初步的探討。利用自動變速器電液控制試驗臺對AG4自動變速箱的控制系統(tǒng)和液壓系統(tǒng)進行了測試。通過試驗驗證了本文所建立的數(shù)學(xué)模型及其分析結(jié)論。</p><p>　　電控機械式自動變速器(Automated Mechanical Transmission, AMT)是一種新型的自動變速系統(tǒng)，其通過對手動固定軸式變速器和干式摩擦離合器的自動化改造從而實現(xiàn)了選檔、換檔以及離合器和油門

48、的自動操縱。AMT技術(shù)適合我國國情，有著廣泛的市場和發(fā)展前途。換檔規(guī)律是電控機械式自動變速器的靈魂，它是判斷換檔時機的依據(jù)。在應(yīng)用中，通過將采集的車輛行駛狀態(tài)與換檔規(guī)律相對比，從而判斷是否達到最佳的換檔點并自動執(zhí)行換檔操作，這樣大大減輕了駕駛員的疲勞，提高行駛安全，同時使整車具有較好的動力性及燃油經(jīng)濟性。本論文選擇電控機械式自動變速器換檔規(guī)律這一關(guān)鍵性問題作為研究對象，研究目的是為AMT制定最佳的換檔規(guī)律以提高車輛的動力性和燃油經(jīng)濟性。

49、通過對影響車輛動力性和燃油經(jīng)濟性的因素進行分析，本論文推導(dǎo)了最佳動力性和最佳燃油經(jīng)濟性換檔規(guī)律的制定方法。為解決質(zhì)量影響問題，提出了一種變結(jié)構(gòu)的最佳換檔系統(tǒng)，豐富了換檔規(guī)律理論。鑒于計算機仿真技術(shù)與實車測試相比可以節(jié)省大量的人力物力，本論文在進行換檔規(guī)律的設(shè)計中，采用Matlab/Simulate仿真工具箱建立了最佳換檔規(guī)律的仿真模型，利用此</p><p>　　換檔品質(zhì)是指在保證動力傳動系統(tǒng)壽命的前提下，能夠迅

50、速、平穩(wěn)換檔的程度，其評價的指標(biāo)主要是舒適性，量化指標(biāo)包括換檔時間和沖擊度。換檔品質(zhì)的影響因素包括軟、硬件兩方面九大因素，并且可用兩種實驗方法對換檔品質(zhì)進行研究，一種是整車道路實驗實時采集數(shù)據(jù)進行分析；第二種方法就是通過做模擬整車工況的臺架實驗。</p><p>　　AMT的控制策略是AMT控制的全部控制思想，控制策略里換檔規(guī)律、離合器結(jié)合規(guī)律、換檔時序、控制方法的選擇、以及近來比較熱門的通過CAN總線實現(xiàn)的TC

51、U和ECU通訊策略都對檔品質(zhì)有影響，控制策略制訂得是否合理，將直接決定AMT 的換檔品質(zhì)。</p><p>　　換檔規(guī)律是指兩排檔間自動換檔時刻隨控制參數(shù)變化的規(guī)律，包括經(jīng)濟性和動力性換檔規(guī)律。目前汽車上多用兩控制參數(shù)（車速和油門開度）的換檔規(guī)律。換檔規(guī)律沒做好，就會使汽車在不該換檔的時候換檔，該換檔的時候不換檔，使發(fā)動機工況嚴(yán)重不好，造成整個換檔過程中發(fā)動機聲音的異常和平順性的不良，有時還可能使發(fā)動機熄火。離合

52、器結(jié)合規(guī)律受離合器釋放行程、油門開度、發(fā)動機轉(zhuǎn)速、檔位和車速、載荷等素影響，主要控制目標(biāo)是結(jié)合量和結(jié)合速度。而離合器接合控制主要指接合速度的控制，大體上分快、慢、快三個階段。其中直接影響換檔品質(zhì)的是第二階段，如果接合過快將造成換檔沖擊，甚至熄火；若過慢將使離合器滑磨時間過長，有損其壽命?？刂频膮?shù)主要是離合器主從動片轉(zhuǎn)速差及兩邊扭矩值,實驗表明在扭矩值大致相同，轉(zhuǎn)速差小于一定值時接合離合器既能保證換檔時間又不會產(chǎn)生沖擊，離合器磨損也不太

53、嚴(yán)重。</p><p>　　換檔時序是發(fā)動機、離合器、變速器三者協(xié)調(diào)動作的時序 ,它們的配合情況對換檔時間有很大的影響。減小換擋時間最重要的是盡可能地縮小離合器滑摩時間。如果延長空載階段時間，將減小離合器主從動盤轉(zhuǎn)速差。有利于縮短滑摩時間。如果盡可能縮短空載時間，掛上新?lián)鹾罅⒓唇雍想x合器，如果離合器接合速度控制的新方法可行，也可以在較短的時間內(nèi)完成離合器的接合。其次是減小齒輪同步時間，這可以通過兩種方式實現(xiàn)：1.

54、減小齒輪間轉(zhuǎn)速差；2.增大換擋力。</p><p>　　運用TCU和ECU通訊策略，通過CAN總線實現(xiàn)發(fā)動機和變速器之間的聯(lián)合控制，AMT能夠達到最優(yōu)控制，獲得最理想的換檔品質(zhì)。</p><p>　　硬件系統(tǒng)元器件性能對換檔品質(zhì)的影響：</p><p>　　硬件系統(tǒng)元器件實現(xiàn)AMT功能的基礎(chǔ)，硬件系統(tǒng)里執(zhí)行機構(gòu)、傳感器、電子元器件、液壓系統(tǒng)等都對換檔品質(zhì)有影響，硬件

55、參數(shù)的選擇對AMT換檔品質(zhì)的提高是至關(guān)重要的。</p><p>　　伴隨汽車?yán)碚摷夹g(shù)的發(fā)展，微處理器的技術(shù)的日益成熟和電子技術(shù)在汽車上的廣泛應(yīng)用，人們已經(jīng)不再只局限于滿足汽車的代步功能，對汽車動力性、經(jīng)濟性的要求逐步向易操縱性、機動性、安全性轉(zhuǎn)移，智能型汽車日益成為人們目光中的焦點。商家的“人、車、生活”,“以人為本”等宣傳口號也側(cè)面體現(xiàn)了人們對汽車的個性化、人性化的期望。</p><p>

56、;　　在汽車智能化的發(fā)展方向上，自動變速器的智能化占有重要一席。而自動變速器的智能化又集中體現(xiàn)在換擋規(guī)律的制定上。為順應(yīng)潮流，為滿足人們對汽車的新要求，加強各自車型的競爭優(yōu)勢，目前，世界各大廠商在新車型的換擋規(guī)律上大做文章，最引人注意的是標(biāo)致—雪鐵龍集團和雷諾公司開發(fā)的AL4 自動變速器竟內(nèi)置了10 種換擋規(guī)律之多。在人—車—路的大系統(tǒng)中，汽車控制的優(yōu)劣，主要反映在車輛與環(huán)境（路）的協(xié)調(diào)、車輛與人的協(xié)調(diào)，故電子自動控制系統(tǒng)可存儲多種規(guī)律

57、供駕駛員選用，不僅有經(jīng)濟性規(guī)律、動力性（又稱運動型）規(guī)律，而且還有一般（日常）規(guī)律、環(huán)境溫度以及隨外界條件變化的規(guī)律等。 即換擋點可以自由設(shè)定為各種規(guī)律。在換擋規(guī)律智能化的方向上，各方面至今已作了不少的工作，其中部分成果已開始在汽車上應(yīng)用。但是開發(fā)此項智能換擋規(guī)律的工作依然艱巨，這主要因為：</p><p>　　1.現(xiàn)有的智能變速器的智能程度有待提高，它表現(xiàn)在對環(huán)境的識別判斷的準(zhǔn)確度不高，對駕駛員的意圖識別不能令

58、人滿意。</p><p>　　2.智能功能還不完善。智能自動變速系統(tǒng)是開放的系統(tǒng)，它應(yīng)在現(xiàn)有的基礎(chǔ)上不斷完善、豐富，只有這樣才能適應(yīng)不同駕駛員的駕駛要求，減少駕駛員的</p><p>　　勞動強度，提高汽車的整體性能。適應(yīng)駕駛員個性的換擋規(guī)律是研究項目中的重要一項，為了使汽車能夠在選換擋時體現(xiàn)不同駕駛員的風(fēng)格特點，適應(yīng)不同駕駛員的對加速的不同要求，前人工作的基礎(chǔ)上對適應(yīng)駕駛員風(fēng)格的換擋規(guī)律

59、作了較為深入的研究，對駕駛員的駕駛意圖、風(fēng)格特點提出了新的識別策略，并系統(tǒng)地提出了換擋智能調(diào)整控制的解決方案。</p><p>　　傳統(tǒng)設(shè)計方法設(shè)計汽車變速器與同步器結(jié)構(gòu)參數(shù)是一項非常費時和艱苦的工作，而且難以求得較理想的設(shè)計參數(shù)，不利于產(chǎn)品性能的提高。變速器與同步器的優(yōu)化設(shè)計則可利用計算機在約束域內(nèi)按預(yù)定目標(biāo)高速有效地優(yōu)選出最佳的結(jié)構(gòu)參數(shù)，是一種理想的高質(zhì)量的設(shè)計方法。研究的主要目標(biāo)是建立一個載貨汽車變速器與同

60、步器結(jié)構(gòu)參數(shù)的優(yōu)化設(shè)計數(shù)學(xué)模型，采用基于K-T(Kuhn-Tucker)方程解的方法進行優(yōu)化計算，以期提高汽車變速器與同步器的設(shè)計水平。汽車傳動系是汽車的主要組成部分，變速器又是傳動系的重要部件，因此汽車變速器的優(yōu)化設(shè)計十分重要。以輕型載貨汽車為例，根據(jù)汽車變速器的設(shè)計要求與特點，在保證零件的強度、剛度、使用壽命等條件下，以減少重量和體積作為追求目標(biāo)，分析建立了載貨汽車變速器優(yōu)化設(shè)計的數(shù)學(xué)模型，并通過實例對其進行了參數(shù)優(yōu)化，獲得了滿意的

61、設(shè)計效果。</p><p>　　同步器是汽車變速器的重要部件，它使變速器主、從動部分同步后再接合，從而減少接合沖擊和噪聲，減輕換檔力，使換檔平順，從而延長了變速器的壽命。通過對同步器同步過程的分析，在保證同步時間最短的前提下，對影響同步性能的參數(shù)進行了優(yōu)化計算，獲得了滿意的設(shè)計效果。MATLAB的優(yōu)化工具箱，是現(xiàn)代優(yōu)化設(shè)計中的一個很方便的軟件，運算速度快，功能強大。它將不同數(shù)學(xué)分支的算法以函數(shù)的形式分類成庫，使用