can模塊

控制局域網CAN (controller area network)是國際上應用最廣泛的現場總線之一.它作汽車環境中的微控制訊,在車載各電子控制裝置ECU之間交換信息，形成汽車電子控制網絡，CAN幾乎成了汽車設計領域一種必須採用的技術手段。

當車載各電子控制裝置在不具有CAN功能（如果是不具有CAN通訊能力的電控裝置，使得其與其它電控裝置相互之間不能進行數據通訊，這樣造成各電控裝置的電控能力差，功能單一，可擴展性差），不能直接進行通訊的情況下，採用“CAN模塊”產品就可以實現具有CAN功能的車載電控網絡系統，各電控裝置相互之間可以相互傳遞所需的電控信號，使得整車的電控系統作用更加強大。

◆ 2路5V電壓輸出，可提供100毫安電流；

◆ 2路數字轉模擬信號輸出，12位轉換精度；

◆ 4路開關量輸出；

◆ 1路轉速信號輸入（磁電信號）；

◆ 8路模擬信號輸入，12位轉換精度；

◆ 3路開關量輸入檢測，可實現對有源和無源傳感器的信號捕捉；

◆ 接口信息：1個RS232接口，2個K線接口，2個CAN總線接口；

◆ 可以通過CAN總線網絡方便地實現整車中各節點的數據信息的接收和發送；

◆ 可以實時採集發動機各傳感器信息，及時瞭解發動機的運行狀態；

◆ 可以對系統進行診斷；

◆ 具有多樣的輸入和輸出接口，可靈活地實現信號功能的轉換；

此產品其主要功能是發動ECU通過CAN模塊連接到CAN總線，實現與TCU、HCU、IC等模塊的數據轉輸及數據轉換控制ECU．CAN模塊連接上水温、油機壓力、轉速等傳感器，將傳感器數據與ECU控制時的數據發送給TCU、HCU、IC，且又把TCU、HCU的控制功能信息通過CAN模塊傳遞給ECU。

Brief introduction

Control Local area network (Controller area network) is the one of the widest application for the total line in the world. As the mini-controller communication of the automotive environment, it can change the information between the ECUs installed on the vehicles, and become to the automotive electronic control network. CAN is almost the obligatory technology method adopted in automotive design field.

CAN module device is an intelligent electronic control device which can achieve communication data transferred among each electronic control device installed in the automobile, thereby, it can make the automobile become a network control system of on-vehicle electronic control device area. Adopt powerful 16-bit micro-controllers with two way, Support protocols of CAN 2.0 A and CAN 2.0B and Developed by the standard protocol SAEJ1939, K-line diagnosis function is available. Meantime, fit for high-speed CAN bus line network as well as low-speed. Good sealing property can used in all kinds of bad conditions.

When electronic control device on-vehicle without CAN function (It can not transfer data communication with other devices If these electronic control device without CAN communication function. The function of device will be reduced, singleness and hard to expand), and can’t communicate directly. CAN module device can make the on-vehicle electronic control network system have CAN function. It can transmit all the needed signal among each device and make the electronic control system more powerful.

◆ Two channels of 5V output voltage, can supply 100 ma current.

◆ Two channels of Digital-to-Analog Converter Output,12-bit conversion accuracy.

◆ Four channels of on-off output.

◆ One channel of RPM signal input (magnetic electricity signal).

◆ Eight channels of analog signal input, 12-bit conversion accuracy.

◆ Three channels of on-off input test, to achieve the capture of signals from active and passive sensors.

◆ Port information: one RS232 port, two K-line ports, two CAN bus port.

◆ Achieve the receiving and sending of data information from all nodes on vehicle through the CAN bus line network.

◆ Collect information of each sensor in real time, keep abreast of the running situation from the engine.

◆ System diagnostic.

◆ Various input and output interface, can achieve signal function transferring neatly.

This product has good application in the gas-electric hybrid bus project which developed together with the research institute of The First Automobile factory of China. The main function is to make ECU connect with the CAN bus line via the CAN module. It controls ECU through the data transfer and conversion with TCU, HCU, IC module, etc. CAN module is connected to the water temperature sensor, oil pressure sensor , speed sensors and send the data of sensors and data under the controlling of ECU to TCU,HCU,IC , meanwhile it sends the control function information of TCU and HCU to ECU via CAN module.