【正文】 This system pletes an au to experiment, move to experiment from the function, alone shift gear experiment, the fatigue test and efficiency experiment. The calculator auto39。s plank card munication method with PLC munication among them, set king with change the machine munication adoption set the king39。The clutch shuts to match a condition for:Shift gear condition the dissatisfied foot wait for a condition satisfy, but wait for time also having restriction, past adoption in fixed time method for machine to account to control in proper order ction to wait for the file changes to, the test parameter that press that file adds to carry, adding to carry a period of time can measure the gearbox add the ability of carry, as a result add to carry of also adopt in fixed time in fixed time a machine to to carry to account plete, will carry on the test of the next file, enter to shift gear to prepare process in the the period of shifting gear to prepare, the current file the marking substitute for the marking of the next test file, the file the parameter(change a ratio,file,add to carry to twist and add to carry to turn soon) change for descend one parameter of the test file. The automatic file changes process Set king the affairs order language can rule at the affairs take place,existence and disappear carry out respectively of change the quantity or expression types and can be an that affairs just took place, the procedure of that unit carried out once。s system has the function of connect, can with the long range examination the spot work appearance, can merge into the CIMS system of the business enterprise. Experimented the pedestal system to synthesize a calculator, munication, automation,electronics,electricity,machine originally etc. the aspect knowledge is a gearbox the prehensive function online examination machine electricity integral whole that an intelligence turn to turn on trial system, the automation procedure degree,examine time to shorten, lowered to circulate cost and raised to produce an efficiency to move the electrical engineering adoption feedback system to move, economize system controls the method precision, the examination spreads the feeling machine accuracy high, e to a very high set the munication with strong king and process control an ability, reducing to control procedure of development the pedestal has already passed factory a square to check before acceptance, will soon throw in to produce a glimmer of, and will be expanded extensively. 。When that affairs disappear, the unit39。s loosenning the condition for open is:The electrical engineering turns and has to be in the preestablished scope soon。s interface development systems can develop vivid interface for various control mode, very image, experiment process automatically is the key of this software system, past the following only to experiment to carry on a discussion automatically. Connect a people39。The ③ experiments the pedestal machine electricity the part takes calculator as center, controling software according to the spot data and current work appearance control system of process,allow to harm an allotment,the instruction send out and break down examination etc.。 (2)The test data statement and test and break down examine a patient of interface amity。The ③ gearbox manipulate(synchronous machine) the test of the function。The movement parameter can actually the hour show。試驗臺已經(jīng)通過廠方驗收，即將投入生產(chǎn)一線，并將被廣泛推廣。 本試驗臺系統(tǒng)綜合了計算機、通訊、自動化、電子、電氣、機械等方面知識，是一個智能化的變速器綜合性能在線檢測機電一體化試驗系統(tǒng)，自動化程序度、檢測時間縮短，大大降低了運行成本、提高了生產(chǎn)效率 。 組態(tài)王還具 有配方功能。以這些工作狀態(tài)和計算機檢測到的現(xiàn)場數(shù)據(jù)組合構(gòu)成不同的事件，再以這些不同的事件之間相互激發(fā)、轉(zhuǎn)換的邏輯關(guān)系實現(xiàn)自動換檔過程的邏輯關(guān)系。事件命令語言可以完成普通程序的 if、 while條件，同時可以達到定時功能。離散變量名或表達 式都可以作為事件。當檔位換到位時，按該檔位的測試參數(shù)加載，加載一段時間就可以測得變速器的加載能力，因而加載的定時也采用定時器來完成。 自動換檔過程的實現(xiàn) 自動換檔過程流程圖 自動換檔過程流程圖如圖 4所示 自動換檔過程要完成松開離合器、換檔、閉合離合器的動作和定時加載以及檔位的自動更替。 計算機通過檢測現(xiàn)場數(shù)據(jù)，根據(jù)任務(wù)規(guī)劃狀態(tài)向 PLC 和變頻器發(fā)送相應(yīng)的控制指令。 計算機通過檢測現(xiàn)場數(shù)據(jù)，根據(jù)任務(wù)規(guī)劃狀態(tài)向 PLC 和變頻器發(fā)送相應(yīng)的控制指令。由于自動試驗過程是本軟件系統(tǒng)的關(guān)鍵，故以下僅對自動試驗進行討論。單獨換檔是應(yīng)廠家要求對某一指定檔位進行試驗。 本系統(tǒng)從功能上完成了自動試驗、手動試驗、單獨換檔試驗、疲勞試驗和效率試驗。 系統(tǒng)工作原理 系統(tǒng)采用雙電機模擬汽車工況，其中驅(qū)動電機通過變頻器的速度閉環(huán)控制模擬汽車的驅(qū)動機構(gòu)，加載電機通過變頻器的扭矩閉環(huán)控制模擬汽車加載。工作時，加載電機工作在發(fā)電狀態(tài)下，能量回饋到電網(wǎng)，大大節(jié)約了能源。 試驗臺機電部分是本系統(tǒng)是最終執(zhí)行機構(gòu)，完成將變速器驅(qū)動到相應(yīng)轉(zhuǎn)速和加載扭矩，以達到特定測試工況。它的基本思路是利用 dq旋轉(zhuǎn)坐標變換，將定子電流分成勵磁電流 id1和轉(zhuǎn)矩電流，在調(diào)速過程中保持轉(zhuǎn)子磁鏈不變，即 id1為常數(shù)，此時交流電機調(diào)速原理與直流電機相同?？刂撇糠诌€包括變頻器、現(xiàn)場數(shù)據(jù)采集卡（ PCL818L）、 PLC控制器。 2 系統(tǒng)體系結(jié)構(gòu) 系統(tǒng)要求 廠方要求