电机英文论文

CAN bus in the electric vehicle monitoring system of Abstract Now, CAN, high-performance and reliability has been recognized and was widely used in industrial automation, marine, medical equipment, industrial equipment, and so on. Field Bus is the development of automation technology One of the focuses of the area known as automated computer LAN. It is a distributed control system to achieve real-time between the nodes, reliable data communications providing strong technical support. CAN bus belonging to the scene of the areas, it is an effective support for real-time control of distributed control or serial communication network. Compared with many of the current RS-485 based on the R line Construction of the Distributed Control System, based on the CAN bus distributed control system has obvious advantages. In this paper, occupies a lot of relevant information based on the comprehensive use of various methods of the CAN bus in the electric vehicle monitoring system in the application of theory and an analysis of development issues, and some of the problems raised his own views. The full text is divided into four parts: The first part of the main topics on the background and content of the subjects studied in the context of topics to write on the CAN bus status and significance in the research described in the content of the object of measurement requirements and complete the task of this paper. The second part, write data acquisition module design, from the SJA1000 CAN-based communications port design, acquisition, the electric car design; electric car design capacity of the collection node consists of three parts. The third part, mainly to write the electric vehicle monitoring network design, the first Fieldbus awakened comparison and choice, selected after the introduction of the CAN bus, the last of the SJA1000 CAN bus controller is introduced. The fourth part is really on the reliability of the system design for discussion, data from the calibration, the anti-jamming software and hardware design of the anti-jamming design in three areas to address the reliability of the system problems. Key words :Fieldbus; CAN bus; SJA1000; nodes;

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矢量电机的声音要更加小一些。在一个就是电能的输出和利用率较高，比较节省电能，同样一度电，用矢量电机跑得稍微远一些关于步进电机和交流伺服电机的性能有较大差别。 步进电机是一种离散运动的装置，它和现代数字控制技术有着本质的联系。在目前国内的数字控制系统中，步进电机的应用十分广泛。随着全数字式交流伺服系统的出现，交流伺服电机也越来越多地应用于数字控制系统中。为了适应数字控制的发展趋势，运动控制系统 中大多采用步进电机或全数字式交流伺服电机作为执行电动机。 虽然两者在控制方式上相似（脉冲串和方向信号），但在使用性能和应用场合上存在着较大的差异。如：1、制精度不同；2、低频特性不同 3、矩频特性不同 4、过载能力不同 5、运行性能不同 6、速度响应性能不同。【简介】：由于异步电机的动态数学模型是一个高阶、非线性、强耦合的多变量系统。上世纪60年代末由达姆斯塔特工业大学（TU Darmstadt）的K.Hasse提出。在70年代初由西门子工程师F.Blaschke在不伦瑞克工业大学(TU Braunschweig)发表的博士论文中提出三相电机磁场定向控制方法，通过异步电机矢量控制理论来解决交流电机转矩控制问题。矢量控制实现的基本原理是通过测量和控制异步电动机定子电流矢量，根据磁场定向原理分别对异步电动机的励磁电流和转矩电流进行控制，从而达到控制异步电动机转矩的目的。【电机】：电机（英文：Electric machinery，俗称“马达”）是指依据电磁感应定律实现电能转换或传递的一种电磁装置。电机在电路中是用字母M（旧标准用D）表示，它的主要作用是产生驱动转矩，作为用电器或各种机械的动力源，发电机在电路中用字母G表示，它的主要作用是利用电能转化为机械能。