汽車引擎控制器之CAN BUS存取介面設計

Design of a CAN BUS Interface Access of Electronic Control Unit for Automobile Engine

林炳煌(Bing-Huang Lin)

指導教授 ： 王之政 阮岱珈

國立虎尾科技大學/工程學院/機械與機電工程研究所/碩士(2011年)

https://doi.org/10.6827/NFU.2011.00010

摘要

本文的研究主要目的在於發展出一套簡易與快速的方法存取汽車引擎管理系統（EMS）記憶體之介面系統。此系統使用電子控制器區域網路(CAN BUS)作為與EMS之間的傳輸橋樑，藉由車上具有的CAN BUS系統為介面，進行讀取和寫入汽車引擎管理系統中之各種資料表，希望藉此介面能夠迅速修改各參數曲線，例如：噴油曲線表、點火時間曲線表以及其他曲線表格之內容等，以達到改良汽車引擎性能之目標。而研究對象則選擇瑞典LAWICEL AB公司所生產的CAN BUS控制器來當作本介面系統之裝置。

對於使用MC68332這類不具備線上燒錄(ISP)功能的微處理器，進行線上燒錄設計必須具備一些基本條件作為其橋樑，本論文即運用汽車上既有之CAN介面和簡單文件傳輸協定之存取方法為傳輸橋樑，以從汽車引擎管理系統中接收程式並進行CRC校驗。

本論文的架構分為硬體、韌體和軟體三大部分，硬體即使用USB to CAN為介面硬體，韌體使用V B編譯器來撰寫，軟體部分則是使用C編譯器來開發視窗介面的程式，並撰寫一裝置安裝資訊檔以提供裝置在作業系統上的驅動程式安裝，且經測試本CAN BUS存取介面系統已能成功而安全的達成讀寫功能。

關鍵字

引擎管理系統 ； 控制器區域網路 ； 線上燒錄

並列摘要

The purpose of this thesis is developing an easier and faster method to access the interface system of the vehicle engine controller’s EMS memory. By using CAN bus system on the vehicle as the interface to read or write software each kind of graph, it can rapidly correct every graph curve line, such as distributive value graph, ignition time graph, and the other graphs. This system uses CAN bus as the transmission to EMS. USB CAN controller, produced by LAWICEL AB from Sweden, is chosen to use in this interface system.

To those using MC68332 kind of MCU system, which do not have ISP (In System Program) function, the ISP design must have some basic condition. This thesis provides methods to satisfy it.

This thesis is classified into three parts: hardware, firmware, and software. Hardware is about the usage of USB to CAN interface. Firmware is written by VB complier. The software part is using C language complier to develop the program for interface windows, and a device information file providing a driver, which is able to successfully and safely complete writing and loading, for the operating system.

並列關鍵字

Engine Managaement System ； Controller Area Network ； In System Program

參考文獻

[1] Robert Bosch Gmbh, “Gasoline Engine Management”, 3

editions November 20, 2006.

MANUAL”, January 1st, 1999.

from Motorola, 2000.

[5] Thomas L. Harman, “The Motorola MC68332