本文選題：自動變速箱 + 變速箱控制單元��； 參考：《電子科技大學(xué)》2013年碩士論文

【摘要】：液力自動變速箱是目前裝備在國內(nèi)車輛上最多的自動變速箱。一般來說，液力自動變速箱采用變矩器和輔助齒輪作為動力傳動的部件，且其換擋的速比主要依靠不同齒輪的嚙合來達(dá)到；與發(fā)動機直接相連的部分則采用變矩器作為傳動裝置。而本文所要涉及的AT(Automatic Transmission)采取變矩器和耦合器物理并聯(lián)，工作方式串聯(lián)；且變矩器部分無鎖止機構(gòu)。 本文所要設(shè)計開發(fā)的TCU(Transmission Control Unit)是為了匹配MA4229液力變速箱而開發(fā)。該自動變速箱的TCU是電子科技大學(xué)智能機電實驗室和貴州凱星液力傳動公司聯(lián)合開發(fā)，同時該項目也是本課題的來源。本論文主要對MA4229TCU進(jìn)行了以下方面的工作： 首先，對國內(nèi)外的變速箱的產(chǎn)業(yè)現(xiàn)狀及應(yīng)用及車輛ECU進(jìn)行了概述。因MA4229工作機械結(jié)構(gòu)和目前現(xiàn)在自動變速箱不同，故對其各個部件的資料進(jìn)行了搜集與整理，，并整合以充分認(rèn)識該變速箱系統(tǒng)。給出了變速箱電子控制部分中最重要的執(zhí)行單元，電磁閥單元的數(shù)學(xué)模型，為將來探究電磁閥制動埋下了伏筆。 其次，為MA4229TCU設(shè)計了一套基于微處理器MC9S12XEP100的嵌入式系統(tǒng)。該嵌入式系統(tǒng)包括硬件和軟件兩大部分。硬件電路包含輸入模塊，輸出執(zhí)行模塊、通信模塊及電源模塊等。在硬件電路部分，對現(xiàn)有電路的設(shè)計存在的問題，提出了改進(jìn)電路。在軟件部分，給出了UCOS-II在MCU上的移植。對于硬件各模塊，設(shè)計實現(xiàn)了相應(yīng)的驅(qū)動。最終，結(jié)合驅(qū)動及相應(yīng)的策略，對MA4229變速箱實現(xiàn)了控制的功能。 最后，通過相關(guān)模塊及聯(lián)機調(diào)試，給出了調(diào)試結(jié)果。 一直以來，國外自動變速箱企業(yè)對國內(nèi)都是實行技術(shù)封鎖的，以實現(xiàn)對國內(nèi)變速箱產(chǎn)業(yè)的壟斷，同時也限制國內(nèi)變速箱產(chǎn)業(yè)的發(fā)展。目前，國內(nèi)車輛的變速箱主要依賴于進(jìn)口；現(xiàn)在國內(nèi)許多車輛，特別是大功率的運輸車輛都急需裝配自動變速箱。而MA4229是一款大功率自動變速箱，其傳動的最大功率可以達(dá)到350KW，該變速箱系統(tǒng)的開發(fā)，對于發(fā)展民族自主品牌，打破國外壟斷具有重要意義。
[Abstract]:Hydraulic automatic gearbox is currently equipped with the most automatic transmission on domestic vehicles. Generally speaking, the torque converter and auxiliary gear are used as the components of the power transmission in the hydraulic automatic transmission, and the speed ratio of the gear shift mainly depends on the meshing of different gears. The parts directly connected with the engine use torque converter as the transmission device. The AT(Automatic transmission in this paper adopts the physical parallel connection of the torque converter and the coupler, the working mode is in series, and the torque converter part has no locking mechanism. The TCU(Transmission Control Unit designed in this paper is developed to match the MA4229 hydraulic transmission. The TCU of the automatic gearbox is developed jointly by the Intelligent Electromechanical Laboratory of the University of Electronic Science and Technology and the Guizhou Kaixing hydraulic Transmission Company, and the project is also the source of this subject. The main work of this thesis is about MA4229TCU in the following aspects: Firstly, the industrial status and application of gearbox at home and abroad and vehicle ECU are summarized. Because the working mechanical structure of MA4229 is different from that of the present automatic gearbox, the data of its components are collected and arranged, and the gearbox system can be fully understood. The mathematical model of the solenoid valve unit, the most important executive unit in the electronic control part of the gearbox, is given. Secondly, an embedded system based on microprocessor MC9S12XEP100 is designed for MA4229TCU. The embedded system includes two parts: hardware and software. The hardware circuit includes input module, output execution module, communication module and power supply module. In the part of hardware circuit, an improved circuit is put forward to solve the problems existing in the design of the current circuit. In the software part, the porting of UCOS-II on MCU is given. For the hardware modules, the corresponding drivers are designed and implemented. Finally, the control function of the MA4229 gearbox is realized by combining the driver and the corresponding strategy. Finally, the debugging results are given through related modules and on-line debugging. In order to realize the monopoly of domestic transmission industry, foreign automatic gearbox enterprises have been carrying out the technology blockade in order to restrict the development of domestic gearbox industry. At present, the gearboxes of domestic vehicles mainly depend on imports, and many domestic vehicles, especially high-power transport vehicles, are in urgent need of assembling automatic gearboxes. MA4229 is a high-power automatic transmission, the maximum power of its transmission can reach 350 KW, the development of the transmission system is of great significance for the development of national independent brand and breaking the foreign monopoly.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TH132.46;TP273

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