فایل ورد کامل تحقیقات در سیستم تست عملکرد دریچه ی گاز الکترونیکی

توجه : به همراه فایل word این محصول فایل پاورپوینت (PowerPoint) و اسلاید های آن به صورت هدیه ارائه خواهد شد

این مقاله، ترجمه شده یک مقاله مرجع و معتبر انگلیسی می باشد که به صورت بسیار عالی توسط متخصصین این رشته ترجمه شده است و به صورت فایل ورد (microsoft word) ارائه می گردد

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فایل ورد این مقاله بسیار خوب تایپ شده و قابل کپی و ویرایش می باشد و تنظیمات آن نیز به صورت عالی انجام شده است؛ به همراه فایل ورد این مقاله یک فایل پاور پوینت نیز به شما ارئه خواهد شد که دارای یک قالب بسیار زیبا و تنظیمات نمایشی متعدد می باشد

توجه : در صورت مشاهده بهم ریختگی احتمالی در متون زیر ،دلیل ان کپی کردن این مطالب از داخل فایل می باشد و در فایل اصلی فایل ورد کامل تحقیقات در سیستم تست عملکرد دریچه ی گاز الکترونیکی،به هیچ وجه بهم ریختگی وجود ندارد

تعداد صفحات این فایل: ۱۰ صفحه

۱ – سیستم تست می تواند آزمون دقیقی برای عملکرد داشته بنابراین به عنوان ارزیابی کیفیت دریچه گاز الکترونیکی می تواند در نظر گرفته شود .
۲ – ارتباط بین کامپیوتر و انسان هوشمندانه و آسان بوده و چرخه توسعه کوچک است .
۳ – نتایج آزمون نشان می دهد که طراحی سیستم آسان و استفاده از آن راحت بوده و می تواند در تولید دریچه گاز الکترونیکی کار بردی باشد . و همچنین میزان ۴۰% از زمان آزمون در آن ذخیره سازی می شود .

عنوان انگلیسی:Research on Electronic Throttle Performance Test System~~en~~

INTRODUCTION Electronic throttle, which adjusts the flow of air into the engine and directly affects the performances of vehicles, such as power, reliability, comfort, convenience and fuel thrift etc, is an essential control part of automotive engines [1]. A few figures can be adopted to make the evaluation of electronic throttle, such as the response time, the location accuracy, the synchronization error and the linearity of position sensors, the drive motor torque, the durability as well as reliability of return spring. Based on virtual instrument technology, an opening time parameter and impulsion performance test system of electronic throttle is introduced in literature [2]; a position sensor, idle speed actuator and valve test system of electronic throttle is designed in literature [3]; and a durability performance test system is developed in literature [4]. In order to ensure the quality of electronic throttle, manufacturers urgently wish to make the quality evaluation of the overall product performances. To satisfy the demand, a new system is proposed and developed. In this system, under C + + builder environment, PID controller and NI PCI-6259 data acquisition card are gathered to achieve the performance detection and the quality evaluation of electronic throttle. II. AN OPENING PERFORMANCE TEST METHOD OF ELECTRONIC THROTTLE The electronic throttle consists of drive motor, reduction gear, return spring, throttle valve and position sensor etc [5]. Functioned by ECU driving signals, the drive motor adjusts the opening of electronic throttle through reduction gears; the return spring keeps the opening of the valve plate in a very small neighborhood to ensure the safety of driving. The position sensor, commonly a linear sliding potentiometer, is located to detect the opening of electronic throttle and obtain the value. The resistance of the potentiometer linearly changes with the position of electronic throttle, and then the corresponding voltage signal, which is produced by the sensor and symbolizes the value of the opening, is sent into ECU [6]. There are five positions to locate the valve plate of electronic throttle: the minimum mechanical cutoff position OMA, the highest mechanical cutoff position UMA, the lowest electrical cutoff position OEA, the highest electrical cutoff position UEA and the initial position NLP. The position distribution is shown in Figure 1. The roundtrip response times (UEA to OEA, OEA to UEA, NLP to OEA, OEA to NLP, UEA to NLP) under three different temperature environments (- 40 °C , -48 °C , and 120 °C ) absolutely reflect the comprehensive performances of the position sensor, the drive motor, the return spring and the mechanism. Therefore, the response times can be reckoned as criteria for determining whether an electronic throttle is qualified. As is shown in table 1, standard roundtrip response times of certain type of electronic throttle are listed. To begin with the opening performance test of electronic throttles, simulate control commands and signals of ECU to make the valve plate of electronic throttles commute in several above positions. Then, collect the output signals of the position sensor, calculate the response times in all positions, and compare them with standard roundtrip times of corresponding type of electronic throttle. Then the result of the quality evaluation is obtained. According to the manufactures’ requirements of the products, the major functions and performances of the test system are as follows. a) Realize the precise control of electronic throttles and measure five response times under certain temperatures -48 °C , -40 °C , and 120 °C . b) Simultaneously run a test on four different types of products c) Add a new function that the system can test new types of electronic throttles d) Display real-time curves and test results, output test results in report forms, and inquire current and historical test data. e) Test condition: Motor supply voltage is 13.5V±۰۱V, Sensor supply voltage is 5V±۰۱V. f) Time accuracy: ±۰۱ms. g) Temperature accuracy: ±۱ °C h) Relative humidity accuracy: ±۱۰%. III. THE DESIGN OF ELECTRONIC THROTTLE PERFORMANCE TEST SYSTEM A. The achievement of hardware platform The system mainly consists of the high-low temperature test case, PID controller, PCI-6259 data acquisition card and the industrial personal computer. The structure of system hardware platform is shown in figure 2. As is shown in figure 2, terminal 1 and 2 of electronic throttle respectively stand for power (+) and (-) of the drive motor. Terminal 3 and 5 are the power terminal and ground terminal of the position sensor in the electronic throttle. Terminal 4 and 6 respectively stand for positive output and negative output (TPS1 and TPS2) of position signals.

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