Ask for an English article on the CAN bus with a translation! 10

CAN (Controller Area Network) is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other without a host in the vehicle.

CAN bus is a message-based protocol designed for automotive applications, but is now also being used in other fields such as aerospace, marine, industrial automation, medical devices.

The development of the CAN bus began in 1983 when the Robert Bosch **** [1] agreement was officially released, and in 1986, the Society of Automotive Engineers (SAE) Congress was held in Detroit, Michigan. The first CAN controller chip, produced by Intel and Philips, was launched on the market in 1987. Bosch published 2 specifications in 1991.

A modern car may have up to 70 electronic control units (ECUs) of various subsystems. [3] Usually the largest processor is the engine control unit (at the same time the engine control module ECM or the powertrain control module PCM car); Communication between these forms of independent subsystems is essential for transmission, airbags, anti-lock braking ABS, cruise control, electric power steering EPS, sound systems, power windows, doors, mirror adjustments, hybrid EV batteries and charging systems, etc., but others. A system may require an actuator to control, or to receive feedback from sensors.

The standard is designed to meet this need.

CAN buses can be used to connect vehicles to engine control units and transmissions, or (on different buses) to connect door locks, climate controls, safety controls, etc. Today, CAN buses are used as fieldbuses in automation environments, mainly due to the low cost of some CAN controllers and processors.

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[1] Bachelor Wang. Research on electrical control system of automobile body based on CAN bus[J].China New Technology and New Products,2012,12(07):154-155

2] He Jinjin, Xiao Jinsheng, Hu Weiyi, et al. Automotive electronic identification system based on CAN bus[J].Journal of Wuhan University of Technology (Information and Management Engineering), 2014, 14(01):364-365

3] An Lianhua, Guan Deyong, Cheng Peng. Application of CAN bus in intelligent public transport system[J].Urban Public Transport,2016(01):36-39

4] Liu Zunyong, Dang Ruining. Research on real-time acquisition system of vehicle road test data[J].Automotive Practical Technology,2014(10):52-54

5] Chai Yu, Li Bin. Development and application prospect of fieldbus technology[J].Instrument Technology, 2001, (2).

6] Wang Huifeng, He Yanqing. Principle and application of fieldbus control system[J].Chemical Industry Press, 2006

7] Long Zhiqiang, Li Xun, Li Xiaolong. Fieldbus control network technology[J].China Machine Press, 2011

1] Ma Honglian, Ding Nan, Li Yilu, Embedded System Design Tutorial, Electronic Industry Press, 2006

2] Rao Yuntao, Zou Jijun, Wang Jinhong, Zheng Yongyun, Fieldbus CAN Principle and Application Technology (Second Edition), Beijing University of Aeronautics and Astronautics Press, 2007

3] Du Shangfeng, Cao Xiaozhong, Xu Jin, CAN bus measurement and control technology and its application, Electronic Industry Press, 2007

4] Guan Xiujun. Automotive microcontroller and LAN technology. Beijing: China Communications Press, 2005

5] Nan Jinrui. Automotive microcontroller and in-vehicle bus technology. Beijing:Polytechnic University Press, 2005

6] Gan Yongmei, Li Qingfeng, et al. Fieldbus technology and its applications[M].Beijing: China Machine Press, 2005

7] Cai Yueming, Liu Hao. Industrial control system based on CAN bus[J]China Instrumentation 2001(5): 130- 135

8] Zhang Zhe. MAC layer protocol analysis of CAN bus[J].Journal of Qingdao Institute of Civil Engineering and Architecture, 2003(3): 141-143

9] Dong Ke, ***, Feng Nenglian, et al. CAN bus technology and its application in hybrid electric vehicles[J].Journal of Tsinghua University:Natural Science,2003(8):100-102

10] Xu Jin, Liu Deying, Zhang Hongjun. Research and implementation of open numerical control system based on CAN bus[J].Machine Tool & Hydraulics,2004(2):120-123

Wait a minute, I'll check it out for you.

Hello question, we are an automobile customization factory, and now lithium battery lithium needs to provide the content of the agreement, what is the content of this agreement?

Do you still need our output, or Party A?

When a node on the CAN bus sends data, it broadcasts it in the form of a packet to all nodes in the network. This allows each node to receive data regardless of whether it is sent to itself or not. 2.The 11-bit character at the beginning of each CAN bus packet defines the priority of the packet. In the same bus, the identifier is unique, and it is not possible for two nodes to send a message with the same identifier.

Of course, the receiving node will also determine whether to receive this frame of information based on the identifier, which is generally called packet filtering technology.

CAN is the abbreviation of Controller Area Network (hereinafter referred to as CAN), which is an ISO internationally standardized serial communication protocol. In the automotive industry, a variety of electronic control systems have been developed in order to meet the requirements for safety, comfort, convenience, low pollution, and low cost. Due to the different types of data used to communicate between these systems and the requirements for reliability, there are many cases where multiple buses are constructed, and the number of wiring harnesses increases.

In 1986, in order to meet the needs of "reducing the number of wiring harnesses" and "high-speed communication of large amounts of data through multiple LANs", Bosch, a German electrical manufacturer, developed a CAN communication protocol for automobiles. Since then, CAN has been standardized with ISO11898 and ISO11519 and has become a standard protocol for automotive networks in Europe.

CAN has been recognized for its high performance and reliability, and is widely used in industrial automation, marine, medical equipment, industrial equipment, etc. Fieldbus is one of the hot spots in the field of automation technology development today, and is known as the computer LAN in the field of automation. Its emergence provides strong technical support for the distributed control system to realize real-time and reliable data communication between nodes.

Thank you for the invitation, let me give you my opinion:

The CAN bus protocol is what the CAN bus is to the meaning of the language. If we don't follow the rules of grammar when we speak, we may not be able to express our ideas in a way that makes sense. If the CAN bus does not have the blessing of a high-level protocol, it can only be used to send and receive simple data, and don't think about the specific control of its dissipation.

CAN is the abbreviation of Controller Area Network (CAN), which was developed by Bosch in Germany, which is known for its R&D and production of automotive electronic products, and eventually became an international standard (ISO 11898), which is one of the most widely used fieldbuses in the world. In North America and Western Europe, the CAN bus protocol has become the standard bus for automotive computer control systems and embedded industrial control LANs, and has the J1939 protocol designed for large trucks and heavy machinery vehicles with CAN as the underlying protocol.