{dy}个电动自行车控制器的原理与设计

介绍
20世纪，电力电子技术，传感器技术，微电子技术和计算机技术的飞速发展，使智能控制器，并在机电一体化系统控制器开发的机械一电自行车已成为电枢纽机电系统。现代电动车技术使控制器已远远超出传统的单驱动控制功能了，已成为电动自行车及能源管理控制中心，这是保障安全驾驶电动自行车，乘坐舒适，高动态性能和经济，节能的核心和关键。它的工作了取样，比较和分析，并转换为控制或保护的一系列订单，自动监测和控制电路，使电动自行车能够安全可靠运行的各种状态信息。电机控制系统的性能和质量将决定电动自行车的动态性能，驾驶性能和安全性能。

电动自行车控制器产品日新月异，技术先进的突飞猛进，但电动自行车的人们的意识工业水平普遍电动自行车控制器的知识，提高这一类，我们从基本控制理论知道的技术水平所产生的单芯片反电动势为：电子=柯为制作的电磁转矩：T公式= KTI中柯型为背公式电动势常数，KT公司的扭矩不变，对电机转速n。
这些公式的物理意义：反电势E可以被看作是一个可变电压源，它与电机转速成正比关系;电磁转矩T和电枢电流I也是成正比的关系;电枢电阻R（通常很小），并在电机起动开关堵塞时，电流限制器，具有一定的影响;对冲击，动力性能电枢电感L时，断断续续的电力供应电枢，就目前的平滑滤波作用涟漪效应，目前的上下波动很小，它的一个非常小的扭矩波动。如图1-3。

的基础上，电池电压恒定的条件下，间歇供电方法的使用，改变供电电压来控制电机的平均转速，电流的大小，认知和掌握这部法律等特点，在本质上，我们是在以下各节重点概念的PWM（脉宽调制，脉宽调制的简称），脉宽调制控制机制，即：在规定的时间将是成电压脉冲广泛系列直流电压幅度调制，以实现控制频率，电压，电流的目的。电动自行车控制器是使用PWM电路控制电机的输出功率，实现了角色转换调制高频开关电源设备的MOS管，用它来使高频斩波间歇开关电源的实施，从而有效地解决了电机速度和电流处理。

这种控制方法可以很容易地通过单芯片实现了，因此是否有刷电机或直流无刷电机，可实现PWM控制控制系统，因此，电机控制数量提供了机会。

Electric Utility Technology Electric Vehicle electric vehicle controller part lecture (1)

The first electric bicycle controller Principle and Design of

Introduction
20 century, the rapid development of power electronics technology, sensor technology, microelectronics technology and computer technology to enable intelligent controller developed into one of the Electrical and Mechanical of integrated system controller for electric bikes has become a hub of electro-mechanical systems. Modern electric bicycle technology has enabled the controller has gone far beyond the traditional single-drive control functions, has become the electric bicycle and the energy management control center, which is to protect the electric bicycle drive safely, comfortable ride, high dynamic performance and economic , energy-saving core and key. Its working state information for a variety of sampling, comparison and analysis and converted to a series of control or protection orders, automatic monitoring and control of the electrical circuit so that electric bicycles can be safe and reliable operation. Motor control system performance and the quality will determine the dynamic performance of electric bicycles, driving performance and safety performance.

Products Electric Bicycle Controller with each passing day, technology advanced by leaps and bounds, but the electric bicycle industry levels of people’s awareness for the universal electric bicycle controller’s knowledge and improve the technological level of this category, where We know from basic control theory generated by the single-chip back-EMF for: E = KE formula for the electromagnetic torque produced by: T = KTI Medium KE-type formula for the back-EMF constant, KT is torque constant, n for the motor speed.
these physical meaning of the formula: Anti electric potential E can be seen as a variable voltage source, it and the motor speed is proportional to the relationship; electromagnetic torque T and the armature current I is also directly proportional relationship; armature resistance R ( usually very small), and plugging in the motor starter switch when the current limiter has a certain effect; armature inductance L on the dynamic performance of an impact, when the armature to intermittent power supply, the ripple effect on the current role of smoothing filter, the current upper and lower fluctuation is very small, its a very small torque fluctuations. As shown in Figure 1-3.

based on such characteristics, the battery voltage constant conditions, the use of intermittent power supply method, changing the average of the electrical supply voltage to control motor speed, current size, cognitive and master This law, in essence, we are in the following sections focus on the concept of PWM (Pulse Width Modulation, referred to as PWM) pulse width modulation control mechanism, namely: in the required time will be DC voltage amplitude modulation into a wide-ranging series of voltage pulses in order to achieve control of frequency, voltage, current purposes. Electric bicycle controller is using PWM circuit to control the electrical output power, and realize the role switch modulated high-frequency switching power devices are MOS pipe, use it to make the implementation of high-frequency chopper intermittent switching power supply, thus effectively solved motor speed and current handling.

this control method can easily be achieved through single-chip, so whether there is a brush motor or a brushless DC motor, it can realize the control system of PWM control, thus the number of motor control provides the opportunity for . (07-12-4)