汽車燃油噴射系統訊號擷取器的設計與製作

The Development of Data Acquisition for a Vehicle Fuel Injection System

蘇育漢(Yu-han Su)

指導教授 ： 褚文和

國立虎尾科技大學/工程學院/機械與機電工程研究所/碩士(2009年)

https://doi.org/10.6827/NFU.2009.00062

摘要

現今車輛對於引擎管理系統中各感知器訊號量測，普遍仍以各廠牌所提供的專用檢測儀器為主，但這些檢測儀器常受限於硬體本身記憶容量限制，造成車輛維修人員無法長時間觀察引擎管理系統中各感知器發生間歇性故障時的頻率與時間。本文目標為製作一套能在Windows視窗程式的作業系統環境下，且操作容易的中文化資料擷取系統應用軟體，研究內容分成硬體架構與軟體架構兩個部份探討。
本文的硬體架構，係使用ADVANTECH USB-4711A資料擷取卡、Fluke 98 automotive scope，以作為兩種系統之功能與量測精確性之比較。
在軟體架構方面，係利用程式發展軟體Microsoft Visual Studio 2005 的MFC來製作資料擷取系統的視窗介面與測量功能性。而應用程式的視窗介面包含: 波形的顯示、參數設定、電壓與時間刻度調整..等。資料擷取之功能包含: 靜態檔案與即時動態引擎感知器訊號擷取與資料的存取。
經實車量測結果顯示，資料擷取系統較Fluke 98 automotive scope準確。而本文所發展之資料擷取系統無論在解析度、資料傳送速度等功能都比Fluke 98 automotive scope更優越且更具彈性。
藉由本文所發展之資料擷取系統的研究成果，除可滿足引擎檢修及動力性能分析之需求外，亦可節省車輛檢修所需之費用，包括時間、物料的節省，以及更具彈性的優點等。是一套功能強大且快速的引擎檢修、量測、監控及教學系統。對於現場車輛維修人員而言除了能夠加速維修作業之外，更可提高引擎故障診斷的正確性。

關鍵字

資料擷取系統 ； Fluke 98 automotive scope ； 引擎管理系統 ； Microsoft Visual Studio 2005 MFC

並列摘要

Nowadays the measurements of the sensor signal of the engine management system in the vehicle are special purpose diagnostic tools which are primarily provided by the trade car makers. However, these instruments are often limited by the memory size of the hardware itself. This is the reason why the vehicle servicemen fail to monitor the frequency and time instant of the intermittent faults of the various sensors in engine management system over a long period of time. The objective of this research is to develop a data acquisition application program with Chinese human interface which runs in the Windows operating system environment. The research divides into two aspects: the hardware and the software.
The hardware of the research mainly consists of the USB - 4711A data acquisition card produced by ADVANTECH and the Fluck 98 automotive scope. By comparing the functionality and the accuracy of measurement we can estimate the performances of the two equipments.
In the software aspect, we develop the functionalities and human interfaces of the application program by using MFC of Microsoft Visual Studio 2005. The windows of the application program consist of the Profile demonstration, the parameters configuration, and the setting of voltage scale as well as time base. The functionalities of the data acquisition includes: loading from the files and displaying the results which are measured real-time from the various sensor signals.
The experiment results demonstrate that the data acquisition system developed in the research is more accurate than the Fluck 98 automotive scope. The developed data acquisition system is more excellent than the Fluke 98 automotive scope in resolution, transmitting speed and flexibility.
According to the results of the research, the developed data acquisition system except can satisfy the demands of the engine repair and the performance analysis. It can also save the expenses the vehicles repair needed including the repair time, spare parts, as well as has the elastic merit and so on. It’s not only a powerful and quick engine repair system but it is also a new learning system. It not only helps the servicemen speeding up the services but also increases the accuracy when diagnosis a fault engine.

並列關鍵字

Data Acquisition System ； Fluke 98 automotive scope ； Engine Management System ； Microsoft Visual Studio 2005 MFC

參考文獻

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