labview汽车CAN总线.doc

摘要 随着欧Ⅴ排放法规的颁布实施，国际对汽车尾气排放也是越来越加的严格，所以降低汽车尾气排放迫在眉睫。然而，只有通过加强对汽车的电子控制管理，这一最经济有效的办法才是适合中国的汽车工业。 汽车CAN总线网络是汽车电子控制管理系统中不可获取的重要组成部分。它就相当于一个公共的信号通道，被用来传输各种汽车传感信号。比如动力系统信号，传动系统信号，底盘系统信号，车身系统信号以及执行器信号等一些其他的信号。 本课题基于虚拟仪器LabVIEW程序开发的汽车CAN总线仿真软件，不仅能够实现实时监测汽车CAN总线信号，而且还能发送模拟的汽车CAN报文。依据本思路建立的简易、廉价、便携的CAN总线通信仿真软件一方面可以模拟实际汽车当中的各种CAN报文的发送和接收，同时还可以与实际的汽车CAN总线进行通讯，从而通过该仿真软件可以实时的监测到汽车真实CAN网络当中的各种信号并以虚拟的仪表仪器直观的显示出来，从而降低了真实仪表仪器的成本，提高了经济性；另一方面，可以通过该仿真软件作为教学软件，让学生了解CAN总线技术和协议，提高学生对CAN总线网络的认知，同时还可以提高学生们的动手编程能力，从而来提高学生编程的系统构架。 关键词：欧Ⅴ，仿真，CAN总线，模型，通信 Abstract As European V emission regulation was published,international requirement about vehicles exhaust gas emission is sharper and sharper.So reducing cars emission is our task what must be done now! And strengthening electric controlling about vehicles is a economic way which is optimal to Chinas car industry. CAN桞US net is an indispensable part in cars electric control and management. It works as common access to transmit variable sensors signals such as dynamic systems signals、transmission systems signals、automobile chassis systems signals、car body systems signals、actuators signals and so on. The issue based on a vehicles CAN—BUS simulation software developed by LabVIEW programme,not only can monitor cars CAN—BUS real—time signals, but also can send simulative cars CAN—BUS message. On account of the idea above, this paper finished a simple、economic and convenient CAN—BUS communicative simulation software. On the one hand, the software is used to simulate CAN—BUS message sending and receiving. It can communicate with real cars CAN桞US net monitoring cars variable signals in its real CAN桞US shown by virtual dashbord which is economic because of lowering the costing of real dashbord. On the other hand,the simulation software can be used in education showing students the skill and deal of CAN桞US net, making them know of CAN桞US net. And whats more, students programming ability is improving, so is students idea about programming system framewo