基于力矩传感器的智能电动车控制系统研究

发布时间：2018-09-08 21:25

【摘要】：智能电动车以其轻巧灵活、绿色环保、健康便捷等特点,逐渐成为现代人理想的健身及出行工具。相比于国内传统的电动车,智能电动车最明显的区别就是其具有智能助力功能。传统的电动车存在控制方式单一、电机效率低、骑行体验差等缺点,智能电动车取代传统电动车是未来交通发展的必然趋势。本文针对智能电动车最新的发展研究情况,提出了一种以中轴型力矩传感器为核心部件,综合多参数控制的智能电动车控制系统,以下简称TSECS(Torque Sensor E-bike Control System)系统,实现了电动车控制的信息化和智能化。主要展开的研究工作如下:(1)通过对智能电动车的机械结构以及骑行过程中的受力状况进行分析,提出了一种基于电动车中轴应力检测方法的力矩传感器方案,通过电阻应变片测量中轴力矩。针对力矩传感器在工作过程中处于密封且高速旋转的特殊工作环境,提出了无线供能和力矩信号无线传输解决方案。(2)单一的力矩控制方式在上坡、逆风等环境下并不能实现最佳的助力骑行效果,本文提出了多参数智能助力方法以实现助力智能化。在实时采集力矩信号的基础上,综合车速、路况、电池剩余电量等多个参数,采用PID控制算法实现多参数智能控制。(3)采用低功耗蓝牙技术实现电动车与智能手机的通信,在智能控制和数据处理方面形成互补,实现了定位导航、锂电池功耗管理、助力模式自主调节等功能。
[Abstract]:Compared with the traditional electric vehicle in China, the most obvious difference between the intelligent electric vehicle and the traditional electric vehicle is its intelligent power-assisting function. In view of the latest development and research situation of intelligent electric vehicles, this paper presents a kind of intelligent electric vehicle control system which integrates multi-parameter control and takes the center-axle torque sensor as the core component, hereinafter referred to as TSECS (Torque Sensor E-bike Control System). The main research work is as follows: (1) Based on the analysis of the mechanical structure of the intelligent electric vehicle and the force condition during the riding process, a torque sensor scheme based on the stress detection method of the middle axle of the electric vehicle is proposed. The torque of the middle axle is measured by the resistance strain gauge. In view of the special working environment of the torque sensor which is sealed and rotates at high speed in the working process, the solution of wireless energy supply and wireless transmission of torque signal is put forward. (2) The single torque control mode can not achieve the best riding aid effect in the uphill and windward environment, and this paper proposes a multi-parameter intelligent power aid method to achieve the real situation. Based on the real-time acquisition of torque signals, the PID control algorithm is used to realize multi-parameter intelligent control. 3. The communication between the electric vehicle and smart phone is realized by using low-power Bluetooth technology, which complements each other in intelligent control and data processing and realizes positioning guidance. Aviation, lithium battery power management, help mode self regulation and other functions.
【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP212

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