can总线毕业论文

CAN（控制器区域网络）是一种车辆总线标准设计允许微控制器和设备相互通信的车辆内无主机。CAN总线是一种基于消息的协议，专为汽车应用，但现在也用于其他领域，如航空航天，船舶，工业自动化，医疗设备。开发的CAN总线开始最初在1983罗伯特博世有限公司[ 1 ]协议被正式发布，1986，汽车工程师协会（SAE）大会在底特律，密歇根。第一个CAN控制器芯片，由英特尔和飞利浦生产，市场上开始于1987。博世在1991出版的2规范。现代汽车可能会有多达70的电子控制单元（ECU）的各种子系统。[ 3 ]通常最大的处理器是发动机控制单元（同时发动机控制模块/ ECM或动力系统控制模块/ PCM汽车）；其他用于传输，安全气囊，防抱死制动/ ABS，巡航控制，电动助力转向/ EPS，音响系统，电动窗，门，后视镜调整，混合电动汽车电池和充电/系统等，这些形式的独立子系统之间的通信是必不可少的，但其他人。一个系统可能需要控制的执行机构，或接收来自传感器的反馈。该标准被设计来满足这一需要。CAN总线可用于车辆连接发动机控制单元和传输，或（在不同的总线）连接的门锁，气候控制，安全控制，等。今天，CAN总线作为现场总线在自动化环境，主要是由于一些CAN控制器和处理器的低成本。内容来自百度翻译。不通之处自己改改。

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Controller–area network (CAN or CAN-bus) is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host is a message based protocol, designed specifically for automotive applications but now also used in other areas such as industrial automation and medical of the CAN-bus started originally in 1983 at Robert Bosch GmbH.[1] The protocol was officially released in 1986 at the Society of Automotive Engineers (SAE) congress in Detroit, Michigan. The first CAN controller chips, produced by Intel and Philips, came on the market in 1987. Bosch published the CAN specification in is one of five protocols used in the OBD-II vehicle diagnostics standard. The OBD standard is mandatory for all cars and light trucks sold in the United States since 1996, and the EOBD standard, mandatory for all petrol vehicles sold in the European Union since 2001 and all diesel vehicles since 2004A modern automobile may have as many as 70 electronic control units (ECU) for various subsystems. Typically the biggest processor is the engine control unit, which is also referred to as "ECU" in the context of automobiles; others are used for transmission, airbags, antilock braking, cruise control, audio systems, windows, doors, mirror adjustment, etc. Some of these form independent subsystems, but communications among others are essential. A subsystem may need to control actuators or receive feedback from sensors. The CAN standard was devised to fill this CAN bus may be used in vehicles to connect engine control unit and transmission, or (on a different bus) to connect the door locks, climate control, seat control, etc. Today the CAN bus is also used as a fieldbus in general automation environments, primarily due to the low cost of some CAN Controllers and holds patents on the technology, and manufacturers of CAN-compatible microprocessors pay license fees to Bosch, which are normally passed on to the customer in the price of the chip. Manufacturers of products with custom ASICs or FPGAs containing CAN-compatible modules may need to pay a fee for the CAN Protocol License.