200948642 九、發明說明： 【發明所屬之技術領域】 本發明是關於一種車用控制器區域網路之檢測裝置 及方法’尤指一種藉由擷取來自車輛之各別系統於路上實 測之資料訊號，並透過一訊號分析儀針對一待測元件進行 雙向資料訊號之檢測。 【先前技術】 〇 大致於幾十年前’汽車電子資料便開始利用汽車内部 匯流排通訊系統傳輸資料’發展至今有四十幾種以上汽車 通訊協定。在發展初期，美國汽車電子工程協會（SAE)200948642 IX. Description of the Invention: [Technical Field] The present invention relates to a device and method for detecting a regional network of a vehicle controller, particularly a data signal that is actually measured on the road by capturing individual systems from the vehicle. And a two-way data signal is detected by a signal analyzer for a component to be tested. [Prior Art] 大致 About a few decades ago, 'automotive electronic data began to use the internal bus communication system to transmit data.' There have been more than 40 kinds of automobile communication agreements. In the early days of development, the American Automotive Electronics Engineering Association (SAE)
將車内通訊協定，概括粗分為：Ciass a、Class B、Class C 等三項規範，以不同的傳輸速率，分別應用在不同的車内 電子纽’如：電動椅、空調、車身電子診n统、汽車 動力系統。The in-vehicle communication protocol is broadly divided into three specifications: Cias a, Class B, and Class C. They are applied to different in-vehicle electronic buttons at different transmission rates, such as electric chairs, air conditioners, and body electronics. , car power system.
隨著通訊、網路技術向上發展，加上新的車用通訊協 ❹定不斷被開發出來，過去這三項規範（class A 、Class B、With the upward development of communication and network technologies, and the development of new automotive communication protocols, these three specifications (class A, Class B,
ClassC)已不符合目前車内龐大電控系統所需 ，並逐漸開 枝散葉衍生出各式不同車用電子式設備，如：行動多媒體 系統平台（MobileMedia)、安全匯流排(；SafetyBus)、電 子線圈操控（Χ-by-wire )及車内偵測網路系統 (Diagnostics) ...等等。 要能在日趨複雜化的車用電控系統中準確又穩當地 控制車子’車用電子設備與主要汽車電腦控制台（汽車電 6 200948642 控系統中心）之間無礙的通訊（資料傳輸）環境也格外重 要。由於電子元件之間資料傳輸量越來越大，過去的線纜 串聯技術已不敷使用，過多的線纜連接只會增加安裝的困 難’也讓車内電子控制單元ECU(Electr〇nic control Unit) 變得更加複雜。 目剛所使用的汽車線束（hard-wired)在車内形成高 複雜度的車内網路，雖然解決大部分車上基本傳輸需求， 不過在線束數量增加後，不僅造成整車成本提高，也出現 車體重量、成本提高等問題，都會導致燃油費用及車輛性 能的不良影響》 因此’於二十多年前德國汽車廠，便提出了匯流排控 制器Q域網路（Controller Area Network ; CAN)通訊協 定，這也是目前車用網路領域中被最常用到的技術。簡言 之，CAN是一項多工串列通訊協定，串聯趑分散在車内 電子模組資訊，是一種多主控、多重播送的車内通訊協 及，主要控制車内各電子系統裝置及電子控制單元ECU 之間交換資訊，構成一道緊密的汽車電子控制網路。而控 制區域網路匯流排CAN Bus為聯繫車内所有電腦系統的 嫖介’利用「匯流排」傳輸方式，可以更快速、更正確的 傳達電腦與電腦間的訊息’是一種多主方式的串行通訊匯 流排，有很高的抗干擾能力，以網路分享器的概念，藉此 減少線路的安裝費用’可靠度也比較高。以車内較短的傳 輸距離，控制區域網路匯流排CAN Bus更能提供快速的 傳輸速率。另外’控制區域網路匯流排CAN Bus還有優 7 200948642 先等級控制可以滿足即時通訊，相較於其它匯流排系統， 控制區域網路匯流排CAN Bus的這些特性，很自然地在 現今n*車電控傳輸系統中受到廣泛應用。 舉例來說，現今汽車與傳統車輛之差異在於：傳統在 車輛引擎上會有兩組冷卻水溫度感知器分別告知引擎控 制電腦與透過儀錶板的水溫錶告知駕駛人，而在配備有控 制區域網路匯流排CAN bus的車輛則是採取一個冷卻水 溫度感知器經引擎控制電腦也就是其電子控制單元Ecu 轉換成訊號，再送至儀錶板的水溫錶；例如，在傳統的車 上會有額外的線路由冷卻水溫度感知器接到儀錶板上以 提供水溫錶所須的資訊，然而於現今以控制區域網路匯流 排CAN bus作為資料傳輸協定之汽車即可減少這些多餘 的纜線以及不必要的接頭，進而大幅降低其故障產生的可 能。 現今市售之車用電子通訊分析儀大多還是侷限於傳 統不波器形式的分析儀，僅能用於現場即時桧測，無法進 行長時間收錄及重播收錄訊號，因此無法對開發階段不定 期出現的錯誤訊號進行分析與除錯，這對車用電子元件的 穩定性是一大隱憂。 同樣的，在車輛電子控制單元的研發階段，車用電子 元件必須連接實車訊號進行反覆測試，以驗證其車用電子 疋件之正確性與穩定性’但由於現在市售的分析儀尚無長 時間收錄資料訊號的功能，因此無法讓研發人員取得大量 f測路況之資料訊號作為測試之數據，增加其研發的困難 200948642 度’也較無法確切掌握測試元件於模擬實測路況之狀態下 所產生之品質變化。 故本發明將針對現有市售示波器類型分析儀的缺點 進行改進’以期能發展出一同時具備長時間收錄與重複發 送實車訊號至車輛電子元件的分析儀，協助車用電子元件 廠商縮鉅其電子控制單元ECU研發與品管測試之時間。 【發明内容】 本發明的主要目的在於提供一種車用控制器區域網 路之檢測裝置及方法，其藉由一訊號分析儀長時間擷取來 自車輛之各別系統之資料訊號，並同步儲存於一外接式儲 存媒體中，以提供一待測元件進行模擬檢測。 本發明的次要目的在於藉由在實際路況進行實測來 收集並加以轉換成之模擬控制訊號，以作為日後於生產線 或實驗室巾執行控制n區細路CAN檢啦序時的模擬 控制訊號，使糊n區軸路CAN^_程序能更貼近 於實際操作態樣。 為達上述目的，本發明所提供之車用控制器區域網路 之檢測裝置主要是針對現有車用控制器區域網路can的 檢測方法及裝置進行改良。本發明在檢測裝置上整合了與 制7G件肖喊溝通魏，可具有產生模擬控制訊 號’並透過控彻區翻紅必雜狀魏行測試、 以及，過鋪H區域網路CAN，接收來自於該待測元件 之測試訊號並加以分析等等的雙向功能。 9 200948642 該車用控制器區域網路之檢測裝置係包括有：一車輛 各別系統、一訊號分析儀、一終端機、一外接式儲存媒體、 以及一待測元件。該車輛各別系統係擷取路上實測之一資 料訊號，透過控制器區域網路CAN將資料訊號傳送給該 訊號分析儀後，由該訊號分析儀將資料訊號轉換成一模擬 控制訊號，利用該模擬控制訊號針對該訊號分析儀上所連 接之該待測元件進行雙向資料訊號溝通之檢測分析，並同 步儲存於該外接式儲存媒體之内》 藉由路況實測所獲得之該模擬控制訊號透過控制區 域網路CAN (Controller Area Network)對該待測元件反 覆檢測，其程序更趨近於實際操作態樣，大幅改善了現有 控制區域網路CAN檢測方法及裝置的功能及準確性，同 時更可以協助車用電子元件廠商縮短其研發與品管之時 間。 【實施方式】 為了能更清楚地描述本發明所提出之車用控制器區 域網路之檢測裝置及方法，以下將配合圓式詳細說明之。 請參閱圖一，其中，圖一為本發明之車用控制器區域 網路之檢測裝置之硬體示意圖。該車用控制器區域網路之 檢測裝置1係包括有：一車輛各別系統11、一訊號分析 儀12、一終端機13、一外接式儲存媒體14、以及一待測 元件15。 該車輛各別系統11係擷取路上實測之一資料訊號， 200948642 例如：來自於車内之引擎/傳動系統、懸吊/底盤系統、車 身系統、駕駛資訊系統、安全保全系統以及汽車電子通訊 系統上之各別資料訊號，透過控制器區域網路CAN將資 料訊號傳送給該訊號分析儀後，由該訊號分析儀12轉換 成一模擬控制訊號，利用該模擬控制訊號針對該訊號分析 儀12上所連接之該待測元件15進行雙向資料訊號溝通之 檢測分析，並同步儲存於該外接式儲存媒體14之内。且 透過該訊號分析儀12所連接之該終端機13提供使用者自 行編輯儲存於該外接式儲存媒體14内之模擬控制訊號， 提供更多變化之實測資料訊號以測試該待測元件15。 藉由將該車輛各別系統11所收集之路況實測資料訊 號，透過該訊號分析儀加以轉換成該模擬控制訊號，並經 由控制區域網路CAN (Controller Area Network)對該待 測元件15反覆檢測，其程序更近似於實際路況操作態 樣。且於該訊號分析儀12上整合了與待測元件15間之雙 向訊號溝通功能’可具有產生模擬控制訊號給待測元件 15進行測試、以及接收來自待測元件15之測試訊號並加 以分析等等的雙向功能。 因此’本發明之車用控制器區域網路之檢測裝置及方 法，不僅整合了「產生模擬控制訊號」及「接收與分析 CAN測試訊號」雙重功能’且更藉由路況實測所獲得之 模擬控制訊號’來使控制器區域網路CAN之檢測程序更 貼近於實際操作態樣，確實大幅改善了現有CAN檢測方 法及裝置的功能及準確性’大幅縮短車用電子元件薇商的 200948642 研發與品管時間。 本發明之車用控制器區域網路之檢測裝置1係為同 時具有擴充彈性以及系統穩定性之檢測裝置；其中，該訊 號分析儀12係採用當前穩定度最高之工業等級控制器並 搭配模組化之儀器模組來建構整個系統，另該訊號分析儀 12符合控制區域網路CAN國際通訊協定，可作為與車用 電子控制單元ECU(Electronic Control Unit)間資訊雙向溝 通之平台。 請參閱圖二所示，圖二為本發明之車用控制器區域網 路之檢測裝置之架構示意圖。其中，該車用控制器區域網 路之檢測裝置1之訊號分析儀12更包括有：一示波器模 組122、一任意波形產生器模組123、一 CAN控制卡124、 以及一主機125。 該車輛各別系統11以及該待測元件15係分別與訊號 分析儀12之示波器模組122、任意波形產生器模組123 及CAN控制卡124予以電性連接。該示波器模組122， 係以至少10MHz的速度’將該車輛各別系紇丨〗所擷取之 資料訊號發送至主機125，並以軟體撰寫特殊存檔技術， 將收錄的資料同步存放到該外接式儲存媒體14内，如此 收錄時間長短不受儀器暫存記憶體大小而限制。該任意波 形產生器模組123,係具有訊號播放之功能，可將主機 之暫存s己憶體或外接式儲存媒體14内經由該示波器模組 122所擷取或是經過修改的模擬控制訊號發送至該待測 元件15。 12 200948642 該CAN控制卡以係可同時連接車輛各別系統n 以及該待献件15。該瞻_卡124，健該車輛各 別系統η所擷取之資料訊號發送至主機125，並以軟體 撰寫特殊存微如將收錄的資料同步存放到該外接式儲 存媒體14 β，故收錄時間長短亦不受儀器暫存記憶體大 小而限制。該CAN控制卡124亦具有訊號播放之功能， 可將主機I25之暫存記憶體或外接式儲存媒邀M内經由 該CAN控制卡124所擷取或是經過修改的模擬控制訊號 發送至該待測元件15 ^ 該主機125係包括一中央處理器1251、複數個擴充 槽1252、-控制器1253、-操作介面1254、-記憶單元 1255、以及一電源模組1256 ^該示波器模組122、任意波 形產生器模組123、以及CAN控制卡124係分別嵌附於 該主機125之擴充槽1252之内，並分別透過該控制器 1253與該令央處理器1251進行數據溝通，以提供穩定及 高效能之通訊及運算作業平台。 該控制器1253係為符合pxi(pCI eXtensi〇ns for Instrumentation)工業等級之控制器，用以操控各模組間之 匯流排資料連接。所謂PXI也就是一款以PC為基礎的平 台，疋一款兼具尚效能和低價位的佈署平台，提供量測和 自動化系統使用，更廣泛應用於製造测試、軍事及航太、 機器監督、汽車，以及工業測試。該控制器1253係分別 與該中央處理器1251、複數個擴充槽1252、操作介面 Π54、記憶單元1255、以及電源模組1256傲電性連接。 200948642 該#作介面1254係提供該終端機13予以電性連接， 透過該推作介面1254所連接之該終端機13，提供使用者 自行編輯儲存於該外接式儲存媒體14内之模擬控制訊 號，並藉由該CAN控制卡124或該任意波形產生器模組 123 ’將該模擬控制訊號發送到控制區域網路CAN中， 進而測試連接於該訊號分析儀12上之該待測元件η。 該記憶單元1255係為一暫存記憶體，用以暫時儲存 該車輛各別系統11及該待測元件15所操取之資料訊號， 該記憶單元1255可以是可重複讀寫之非揮發性記憶趙 (Non-VolatileMemory)、快閃記憶體（FlashMemory；)、 電氣可程式唯讀記憶體（Electric Programmable Read Only Memory ; EPROM)、以及微型硬碟（Micro-HD)其中之 一。由於該記憶單元1255之數據記憶容量有限，無法容 納該車用控制器區域網路之檢測裝置1於車輛實測時長 時間所擷取收錄之大量資料訊號，故可另與該外接式儲存 媒體14相連接，並以特殊之軟髏將該實測之資料訊號儲 存至該外接式儲存媒體14中，以提供研發或品管之基礎 測試數據。 該電源模組1256係提供該訊號分析儀12運作時所需 之電力，其可以是透過一變壓器與外界之110或220伏特 之電源插座連接並進行供電、也可以包括一電池模組例 如：鋰電池、鎳氫電池、氫氧電池、碳鋅電池、鎳鎘電池、 燃料電池、或可充電電池等。由於此所述之該電源模組 1256亦屬習知技術且非屬本案之技術特徵，故不贅述其 200948642 詳細構咸。 該外接式儲存媒體14係可以是硬碟機、可讀寫式光 確機、記憶體、以及磁碟陣列等等具有相對較大容量之記 憶裝置。一般來說’該外接式儲存媒體14至少具備2〇〇gb 以上的倚存空間，以每秒40MB的儲存量估算，至少可以 大致存放一小時的資料訊號檔案，達到符合模擬實際路況 變數之需求。 ❹ 該待測元件15係符合控制區域網路CAN國際通訊 協定，且可以是裝置於車内之引擎/傳動系統、懸吊/底盤 系統、車身系統、駕駛資訊系統、安全保全系統以及汽車 電子通訊系統上之電子控制單元ECU。 參閱圖二所示，該車輛各別系統u以及該待測元件 b係分別具有一訊號連接端A、B，且該車輛各別系統 11與該待測元件15其中之一的訊號連接端（A或B)皆 可連接到該CAN控制卡124之一訊號連接端c上，以便 ❹ 把訊號傳遞到CAN控制卡124上以供判斷該車輛各別系 統11及該待測元件15之運作，或是接受由CAN控制卡 124所發送控制區域網路CAN訊號。 同樣的，該車輛各別系統11以及該待測元件15其中 之一的訊號連接端（A或B)，亦可以連接到該示波器模 紐122之一訊號連接端d上以便把訊號傳遞到該示波器 模組122上’以供顯示波形並判斷該車輛各别系統u及 該待測元件15之運作。 另，該待測元件15之訊號連接端B亦可以連接到該 200948642 任意波形產生器模組123之一訊號連接端E上以便接受 由該任意波形產生器模組123發送之模擬控制訊號，用來 控制該待測元件15進行模擬化的檢測分析。 參閱圖三所示，圖三為本發明之車用控制器區域網路 之檢測方法流程圖，其包括有下列步驟： 步驟21 ·由一車輛各別系統來收集來自車輛各系統 於道路實測之資料訊號； 步驟22 :對收集到之資料訊號加以整理，並藉由一 訊號分析儀產生一模擬控制訊號；以及 步驟23 :以該模擬控制訊號測試其他待測元件。 綜上所述’本發明一種車用控制器區域網路之檢測裝 置1係包括有：一車輛各別系統u、一訊號分析儀12、 一終端機13、一外接式儲存媒體14、以及一待測元件15。 該車輛各別系統11係擷取來自車輛之各別系統於道路上 實測之一資料訊號，並透過該訊號分析儀12轉換成一模 擬控制訊號，利用該模擬控制訊號針對該訊號分析儀12 上所連接之該待測元件15進行雙向資料訊號溝通之檢測 分析’並以軟體撰寫特殊存檔技術同步儲存於該外接式儲 存媒體14之内。 藉由路況實測所獲得之該模擬控制訊號透過控制區 域網路CAN對該制元件15反覆檢測，更可藉由該分 析儀12所連接之該終端機13針對儲存於該外接式儲存媒 體14内之模擬控制訊號進行編輯，使其程序更趨近於實 際道路操作態樣’不僅大幅改善了現有控制區域網路 200948642 CAN檢測方法以及裝置的功能及準確性，同時更可以協 助車用電子元件廠商縮短其研發與品管之時間。 唯以上所述之實施例不應用於限制本發明之可應用 範圍’本發明之保護範園應以本發明之申請專利範園内容 所界定技術精神及其均等變化所含括之範圍為主者。即大 凡依本發明申請專利範園所做之均等變化及修飾，仍將不 失本發明之要義所在，亦不脫離本發明之精神和範圍，故 都應視為本發明的進一步實施狀況。 〇 【圖式簡單說明】 圓一係為本發明之車用控制器區域網路之檢測裝置 之硬體示意圖。 圓二係為本發明之車用控制器區域網路之檢測裝置 之架構示意圖。 圖三係為本發明之車用控制器區域網路之檢測方法 流程圖。 〇 【主要元件符號說明】 1〜車用控制器區域網路之檢測裝置 11〜車輛各別系統 12〜訊號分析儀 122〜示波器模組 123〜任意波形產生器模組 124〜CAN控制卡 125〜主機 17 200948642 1251〜中央處理器 1252〜擴充槽 1253〜控制器 1254〜操作介面 1255〜記憶單元 1256〜電源模組 13〜終端機 14〜外接式儲存媒體 〇 15〜待測元件 步驟21〜23 :車用控制器區域網路之檢測方法流程 18ClassC) is no longer in line with the current large electronic control system in the car, and gradually develops various electronic devices for vehicles, such as: MobileMedia System (MobileMedia), Safety Bus (SafetyBus), Electronics Coil control (Χ-by-wire) and in-vehicle detection network system (Diagnostics) ... and so on. It is necessary to accurately and steadily control the communication (data transmission) environment between the vehicle's electronic equipment and the main vehicle computer console (Automotive 6 200948642 Control System Center) in the increasingly complicated vehicle electronic control system. It is also very important. Due to the increasing amount of data transmission between electronic components, the past cable serial technology is no longer sufficient. Excessive cable connections will only increase the difficulty of installation. Also, the electronic control unit ECU (Electr〇nic control unit) It has become more complicated. The hard-wired used in the car has formed a highly complex interior network in the car. Although it solves the basic transmission needs of most cars, the increase in the number of wire bundles not only causes an increase in the cost of the entire vehicle, but also occurs in the car. Problems such as weight and cost increase will lead to adverse effects on fuel costs and vehicle performance. Therefore, in the German automobile factory more than 20 years ago, the Q-area controller (Controller Area Network; CAN) communication was proposed. Agreement, which is also the most commonly used technology in the field of automotive networks. In short, CAN is a multiplexed serial communication protocol. It is a multi-master, multi-broadcast in-vehicle communication protocol. It mainly controls various electronic system devices and electronic control units in the car. Information is exchanged between ECUs to form a close electronic electronic control network. The CAN bus of the control area network bus is used to communicate with all computer systems in the car. By using the "bus" transmission method, the message between the computer and the computer can be communicated more quickly and correctly. It is a multi-master serial. The communication bus has high anti-interference ability and the concept of network sharer, thereby reducing the installation cost of the line' reliability. With the short transmission distance in the car, the control area network bus CAN Bus can provide a fast transmission rate. In addition, the control area network bus CAN Bus also has excellent 7 200948642. The first level control can meet the instant communication. Compared with other bus systems, these characteristics of the control area network bus CAN Bus are naturally in today's n* It is widely used in vehicle electronic control transmission systems. For example, the difference between today's cars and traditional vehicles is that there are two sets of cooling water temperature sensors on the vehicle engine that tell the engine to control the computer and the water temperature gauge through the instrument panel to inform the driver, and in the control area. The bus of the CAN bus is a water temperature meter that uses a cooling water temperature sensor to be converted into a signal by the engine control unit Ecu, and then sent to the instrument panel; for example, in a conventional car. Additional lines are connected to the dashboard by the cooling water temperature sensor to provide the information needed for the water temperature meter. However, these extra cables can be reduced by using the CAN bus as the data transmission protocol. And unnecessary joints, which greatly reduce the possibility of its failure. Most of the commercially available electronic communication analyzers in the market are still limited to the analyzers in the form of traditional non-waveless devices. They can only be used for on-site real-time speculation, and cannot be recorded for a long time and replayed. Therefore, it is impossible to appear irregularly during the development phase. The error signal is analyzed and debugged, which is a major concern for the stability of automotive electronic components. Similarly, in the development phase of the vehicle's electronic control unit, the vehicle's electronic components must be connected to the actual vehicle signal for repeated testing to verify the correctness and stability of the vehicle's electronic components. 'But the commercially available analyzers are not yet available. The function of collecting data signals for a long time, so it is impossible for R&D personnel to obtain a large number of data signals for measuring road conditions as test data, and increasing the difficulty of research and development of 200948642 degrees is also less able to accurately grasp the state of test components in the state of simulated measured road conditions. The quality changes. Therefore, the present invention will improve the shortcomings of the existing commercially available oscilloscope type analyzers, in order to develop an analyzer that has both long-term recording and repeated transmission of real vehicle signals to vehicle electronic components, and assists automotive electronic component manufacturers to shrink their capabilities. The time of electronic control unit ECU development and quality control testing. SUMMARY OF THE INVENTION The main object of the present invention is to provide a device and method for detecting a regional network of a vehicle controller, which uses a signal analyzer to extract data signals from respective systems of the vehicle for a long time and simultaneously store them in the data. In an external storage medium, an element to be tested is provided for analog detection. The secondary object of the present invention is to collect and convert the analog control signals into actual control signals by using the actual road conditions as an analog control signal for controlling the n-area CAN detection in the production line or the laboratory towel. Make the paste n area axis CAN^_ program closer to the actual operation. In order to achieve the above object, the detection device for the area network of the vehicle controller provided by the present invention is mainly for improving the detection method and apparatus of the existing vehicle controller area network can. The invention integrates the communication with the 7G component on the detecting device, and can have the analog control signal generated by the control unit and the red zone must pass the test, and the over-the-area H area network CAN receives the The bidirectional function of the test signal of the device under test and analysis and the like. 9 200948642 The detection device of the vehicle controller area network includes: a vehicle individual system, a signal analyzer, a terminal, an external storage medium, and a device to be tested. The vehicle system takes a data signal measured on the road and transmits the data signal to the signal analyzer through the controller area network CAN. The signal analyzer converts the data signal into an analog control signal, and uses the simulation. The control signal performs detection and analysis of the two-way data signal communication on the device to be tested connected to the signal analyzer, and is simultaneously stored in the external storage medium. The analog control signal obtained by the road condition measurement passes through the control area. The CAN (Controller Area Network) repeatedly detects the component to be tested, and the program is closer to the actual operation mode, which greatly improves the function and accuracy of the existing CAN control method and device in the control area network, and can also assist Automotive electronics manufacturers shorten their R&D and quality control time. [Embodiment] In order to more clearly describe the apparatus and method for detecting the area network of the vehicle controller proposed by the present invention, the following will be described in detail in conjunction with the circular form. Referring to FIG. 1, FIG. 1 is a hardware schematic diagram of a detecting device for a vehicle controller area network according to the present invention. The detection device 1 of the vehicle controller area network includes: a vehicle individual system 11, a signal analyzer 12, a terminal unit 13, an external storage medium 14, and a device under test 15. The vehicle's individual system 11 draws one of the measured data signals on the road, 200948642. For example: from the engine/drive system, suspension/chassis system, body system, driving information system, safety and security system, and automotive electronic communication system. The respective data signals are transmitted to the signal analyzer through the controller area network CAN, and then converted into an analog control signal by the signal analyzer 12, and the analog control signal is connected to the signal analyzer 12 by using the analog control signal. The device under test 15 performs detection and analysis of bidirectional data signal communication, and is synchronously stored in the external storage medium 14. The terminal 13 connected to the signal analyzer 12 provides a user to edit the analog control signal stored in the external storage medium 14 to provide more measured measured data signals to test the device under test 15. The measured data signal of the road condition collected by the vehicle individual system 11 is converted into the analog control signal by the signal analyzer, and the component to be tested 15 is repeatedly detected via the control area network CAN (Controller Area Network). The program is more similar to the actual road operation. And integrating the two-way signal communication function with the device under test 15 on the signal analyzer 12, which can have the analog control signal generated for testing the device under test 15 and the test signal from the device under test 15 and analyzed. Two-way function. Therefore, the detection device and method for the vehicle controller area network of the present invention not only integrates the dual functions of "generating analog control signals" and "receiving and analyzing CAN test signals" but also obtaining analog control by road condition measurement. The signal 'to make the controller area network CAN detection procedure closer to the actual operation mode, has greatly improved the function and accuracy of the existing CAN detection method and device' greatly shortened the 200948642 R&D and product of the vehicle electronic component Weishang Tube time. The detecting device 1 for the vehicle controller area network of the present invention is a detecting device having both expansion flexibility and system stability; wherein the signal analyzer 12 adopts the industrial grade controller with the highest stability at present and is matched with the module. The instrument module is used to construct the whole system, and the signal analyzer 12 conforms to the control area network CAN international communication protocol, and can serve as a platform for two-way communication with the electronic control unit ECU (Electronic Control Unit). Referring to FIG. 2, FIG. 2 is a schematic structural diagram of a device for detecting a regional area of a vehicle controller according to the present invention. The signal analyzer 12 of the detecting device 1 of the vehicle controller area network further includes an oscilloscope module 122, an arbitrary waveform generator module 123, a CAN control card 124, and a host 125. The vehicle individual system 11 and the device under test 15 are electrically connected to the oscilloscope module 122, the arbitrary waveform generator module 123 and the CAN control card 124 of the signal analyzer 12, respectively. The oscilloscope module 122 sends a data signal captured by the vehicle system at a speed of at least 10 MHz to the host computer 125, and writes a special archiving technology in software, and simultaneously stores the collected data to the external device. In the storage medium 14, the length of the recording time is not limited by the size of the instrument temporary storage memory. The arbitrary waveform generator module 123 has a function of playing a signal, and can capture the modified analog control signal of the host through the oscilloscope module 122 or the modified storage control signal in the external storage medium 14 Send to the device under test 15 . 12 200948642 The CAN control card is capable of simultaneously connecting the vehicle respective system n and the to-be-supplied item 15. The data card captured by the vehicle system η is sent to the host computer 125, and the special memory is written in software, and the collected data is synchronously stored in the external storage medium 14β, so the recording time is collected. The length is also not limited by the size of the instrument's temporary memory. The CAN control card 124 also has a function of signal playback, and can send the simulated control signal captured by the CAN control card 124 or the modified analog control signal of the host I25 to the temporary storage memory or the external storage medium to the waiting The measuring unit 15 ^ includes a central processing unit 1251, a plurality of expansion slots 1252, a controller 1253, an operation interface 1254, a memory unit 1255, and a power module 1256. The oscilloscope module 122, any The waveform generator module 123 and the CAN control card 124 are respectively embedded in the expansion slot 1252 of the host 125, and communicate with the command processor 1251 through the controller 1253 to provide stable and efficient data. Communication and computing platform. The controller 1253 is a pxi (pCI eXtensi〇ns for Instrumentation) industrial grade controller for controlling bus data connections between modules. The so-called PXI is also a PC-based platform, a deployment platform with both performance and low price, providing measurement and automation system, more widely used in manufacturing test, military and aerospace, Machine supervision, automotive, and industrial testing. The controller 1253 is electrically connected to the central processing unit 1251, the plurality of expansion slots 1252, the operation interface 154, the memory unit 1255, and the power module 1256, respectively. 200948642 The interface 1254 is provided to electrically connect the terminal device 13 to the terminal device 13 connected through the push interface 1254, and the user can edit the analog control signal stored in the external storage medium 14 by itself. The analog control signal is sent to the control area network CAN by the CAN control card 124 or the arbitrary waveform generator module 123', and then the device under test η connected to the signal analyzer 12 is tested. The memory unit 1255 is a temporary memory for temporarily storing the data signals acquired by the vehicle system 11 and the device under test 15, and the memory unit 1255 can be a non-volatile memory that can be repeatedly read and written. One of Non-Volatile Memory, Flash Memory, Electric Programmable Read Only Memory (EPROM), and Micro-HD. Because the data memory capacity of the memory unit 1255 is limited, the detection device 1 of the vehicle controller area network cannot capture a large amount of data signals collected for a long time during the actual measurement of the vehicle, so the external storage medium 14 can be additionally used. The measured data signals are stored in the external storage medium 14 in a special soft case to provide basic test data for R&D or quality control. The power module 1256 provides the power required for the operation of the signal analyzer 12, which may be connected to and powered by a 110 or 220 volt power outlet through a transformer, or may include a battery module such as a lithium battery. Pool, nickel-hydrogen battery, hydrogen-oxygen battery, carbon zinc battery, nickel-cadmium battery, fuel cell, or rechargeable battery. Since the power module 1256 described herein is also a prior art and is not a technical feature of the present invention, the detailed configuration of the 200948642 is not described. The external storage medium 14 can be a relatively large-capacity memory device such as a hard disk drive, a readable and writable optical printer, a memory, and a disk array. In general, the external storage medium 14 has at least 2 〇〇 gb of storage space, estimated at 40 MB per second, and can store at least one hour of data signal files to meet the requirements of simulating actual road conditions. . ❹ The component under test 15 conforms to the control area network CAN international communication protocol, and can be an engine/drive system, a suspension/chassis system, a body system, a driving information system, a security system, and an automotive electronic communication system installed in the vehicle. Electronic control unit ECU. Referring to FIG. 2, the vehicle respective system u and the device under test b respectively have a signal connection end A, B, and a signal connection end of the vehicle individual system 11 and one of the device under test 15 ( A or B) can be connected to one of the signal terminals c of the CAN control card 124 for transmitting the signal to the CAN control card 124 for judging the operation of the respective vehicle system 11 and the device under test 15, Or accept the control area network CAN signal sent by the CAN control card 124. Similarly, the signal connection terminal (A or B) of the vehicle individual system 11 and one of the components to be tested 15 may also be connected to a signal connection terminal d of the oscilloscope module 122 to transmit signals to the signal. The oscilloscope module 122 is configured to display waveforms and determine the operation of the respective vehicle system u and the device under test 15. In addition, the signal connection terminal B of the device under test 15 can also be connected to one of the signal connection terminals E of the 200948642 arbitrary waveform generator module 123 to receive the analog control signal sent by the arbitrary waveform generator module 123. The device under test 15 is controlled to perform simulated detection analysis. Referring to FIG. 3, FIG. 3 is a flow chart of a method for detecting a regional network of a vehicle controller according to the present invention, which includes the following steps: Step 21: Collecting a vehicle from each vehicle system on a road. Data signal; Step 22: sorting the collected data signals and generating an analog control signal by a signal analyzer; and step 23: testing the other components to be tested with the analog control signal. In summary, the detecting device 1 for a vehicle controller area network of the present invention includes: a vehicle individual system u, a signal analyzer 12, a terminal unit 13, an external storage medium 14, and a Element to be tested 15. The vehicle system 11 is configured to retrieve a data signal from a vehicle on a road and convert it into an analog control signal through the signal analyzer 12, and use the analog control signal for the signal analyzer 12 The connected component 15 is connected to the detection and analysis of bidirectional data signal communication and is stored in the external storage medium 14 in a software-written special archival technology. The analog control signal obtained by the actual measurement of the road condition is repeatedly detected by the control area network CAN, and the terminal 13 connected to the analyzer 12 is stored in the external storage medium 14 The analog control signal is edited to make the program closer to the actual road operation mode' not only greatly improved the function and accuracy of the existing control area network 200948642 CAN detection method and device, but also assisted the automotive electronic component manufacturer. Shorten the time for R&D and quality control. The embodiments described above are not intended to limit the scope of application of the present invention. The protection scope of the present invention should be based on the technical spirit defined by the content of the patent application of the present invention and the scope of its equal changes. . It is to be understood that the scope of the present invention is not limited by the spirit and scope of the present invention. 〇 [Simple diagram of the diagram] The circle is a hardware diagram of the detection device of the vehicle controller area network of the present invention. The circular second is a schematic diagram of the structure of the detecting device of the vehicle controller area network of the present invention. Figure 3 is a flow chart of the method for detecting the area network of the vehicle controller of the present invention. 〇[Main component symbol description] 1~ Vehicle controller area network detection device 11 to vehicle individual system 12 to signal analyzer 122 to oscilloscope module 123 to arbitrary waveform generator module 124 to CAN control card 125~ Host 17 200948642 1251 ~ central processor 1252 ~ expansion slot 1253 ~ controller 1254 ~ operation interface 1255 ~ memory unit 1256 ~ power module 13 ~ terminal 14 ~ external storage medium 〇 15 ~ components to be tested steps 21 ~ 23: Vehicle controller area network detection method flow 18