CAN-Bus Communication Design for Automated Mechanical Transmission

2012 ◽  
Vol 241-244 ◽  
pp. 1787-1791
Author(s):  
Hong Kun Zhang ◽  
Wen Jun Li
Keyword(s):  
Communication Protocol ◽  
Can Bus ◽  
Control Unit ◽  
Controller Area Network ◽  
Mechanical Transmission ◽  
Area Network ◽  
Coordination Control ◽  
Transmission Control ◽  
Interface Circuit ◽  
Communication Design

The Transmission Control Unit (TCU) of Automated Mechanical Transmission (AMT) can not only control drive train to shift automatically but also communicate with other controller to achieve coordination control. In this paper, Controller Area Network (CAN) communication of AMT is designed by using Motorola Scalable CAN Module (MSCAN) integrated in MC9S12DP256 Microcontroller. CAN communication protocol, CAN interface circuit and software are developed.

Experimental Study on Engine Control Strategy during Gear Shifting for Vehicles Equipped with Automated Mechanical Transmission

2011 ◽  
Vol 52-54 ◽  
pp. 1199-1205
Author(s):  
Guo Qiang Wan ◽  
Ying Huang ◽  
Fu Jun Zhang ◽  
Tao Cui
Keyword(s):  
Experimental Study ◽  
Control Strategy ◽  
Can Bus ◽  
Control Unit ◽  
Experimental Results ◽  
Mechanical Transmission ◽  
Area Network ◽  
Vehicle Speed ◽  
Engine Control ◽  
Time Operation

This paper presents an experimental study on engine control strategy during gear shifting for a Unimog U4000 equipped with an automated mechanical transmission (AMT) based on the controller area network (CAN) bus. First, an integrated powertrain control system based on the CAN bus is introduced. Second, the ideal AMT gear shifting process is described, and the engine control strategy during gear shifting is proposed. Then, the communication information for the engine control unit (ECU) and transmission control unit (TCU) during gear shifting is determined based on the SAE J1939 protocol. Finally, effectiveness is verified by the experimental results. The experimental results show that: engine control during gear shifting based on the CAN bus can meet the requirement for real-time operation; the engine control strategy presented in this paper during gear shifting can achieve good shift quality with shorter shifting time and less vehicle speed loss.

Study on Control Process of Automatic Mechanical Transmission System for Pure Electric Bus

2012 ◽  
Vol 220-223 ◽  
pp. 1795-1799 ◽  
Author(s):  
Ling Ling ◽  
Zhen Sheng Chen ◽  
Yuan Yue Luo
Keyword(s):  
Control Strategy ◽  
Can Bus ◽  
Control Process ◽  
Mechanical Transmission ◽  
Area Network ◽  
Coordination Control ◽  
Optimum Control ◽  
Evaluation Standards ◽  
Synchronous Motors ◽  
Electric Bus

The vehicle driveline of pure electric bus based on the automatic mechanical transmission (AMT) was introduced and the rationality and necessity of using AMT in electric bus was discussed. The control network structure of vehicle driveline was built in this paper. According to the evaluation standards of automatic gear shifting, that is, the shift time and shift jerk, the optimum control strategy of automatic gear shifting was proposed in terms of the principle and method of adjusting torque and speed of motor. The experimental results indicate that, by the use of the developed gear-shifting control system for pure electric bus with AMT, the coordination control of gear-shifting process between AMT and synchronous motors based on the controller area network (CAN) bus technology can be realized. Consequently, the shifting quality can be improved thus to achieve the predetermined effect.

The Motion Control System of Servomotor Based on CAN Bus

2012 ◽  
Vol 163 ◽  
pp. 260-263
Author(s):  
Jing Lin Tong ◽  
Bo Li ◽  
Xiao Bo Wang
Keyword(s):  
Control System ◽  
Motion Control ◽  
High Speed ◽  
Can Bus ◽  
High Reliability ◽  
Controller Area Network ◽  
Area Network ◽  
Price Ratio ◽  
Motion Control System ◽  
Communication Software

This paper introduces the hardware and the communication software design of control system based on Controller Area Network bus. The control system can realize to control the motion of servomotor through high speed C8501F040 single chip microcomputer with Controller Area Network bus and special motion controller - LM628. This system possesses characteristics such as simple structure, high reliability and high performance/price ratio. Key words: CAN bus, LM628, Motion Control System, Communication software

Development of Field Control System of Automated Guided Vehicle Based on Wireless Local Area Network and CAN Bus

2013 ◽  
Vol 579-580 ◽  
pp. 792-797
Author(s):  
Yan Wang ◽  
Zhong Da Yu ◽  
Chen Xing Bao ◽  
Dong Xiang Shao
Keyword(s):  
Control System ◽  
Real Time ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Can Bus ◽  
Control Unit ◽  
Local Area ◽  
Automated Guided Vehicle ◽  
Area Network ◽  
Control Units

In this paper, we realize a real-time communication based on wireless local area network (WIFI) and controller area network (CAN) bus and develop a distributed control system for an automated guided vehicle (AGV). The system consists of two levels: (1) communication between AGVs and main computer based on WIFI, (2) communicationg between control units of AGV based on CAN bus. A real-time operating system μC/OS-II was used to control time, which significantly reduces the time for program and improves development efficiency. Finally, a small-size distributed AGV controller is developed as the main control unit of AGV and a distributed I/O system is developed based on it.

Performance Analysis of Controller Area Network

2014 ◽  
Vol 543-547 ◽  
pp. 3499-3502
Author(s):  
Fang Li ◽  
Li Fang Wang
Keyword(s):  
Performance Analysis ◽  
Response Time ◽  
Design Process ◽  
Can Bus ◽  
Exact Result ◽  
Controller Area Network ◽  
Area Network ◽  
Communication Model ◽  
Industrial Areas ◽  
Performance Indexes

Controller Area Network (CAN) is widely used in automotive and industrial areas. To give guidance in the design process, CAN bus communication model is established using Matlab/SimulinkTM. Considering the error frames on the bus, the formula that calculating CAN response time and bus load is revised. The relating performance indexes of CAN bus is gained separately through calculation and simulation, it concludes that the CAN bus communication model can efficiently simulate the message transfer sequences in the real bus, and achieves an exact result of the performance analysis of the CAN bus system.

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