摘要
傳統車輛在煞車時皆是使用機械摩擦方式並產生廢熱散發於空氣中，煞車能量無任何利用而造成能量浪費，為解決此能量浪費之問題，本論文將設計一再生煞車系統，以提升能量使用效率。本論文利用直驅式車輪馬達作為動能與電能之間轉換橋樑，當車輪馬達於煞車產生反電動勢時，將電能回收於鎳氫電池中。再搭配閉迴路PID控制器，決定PWM之工作週期(duty cycle)，進而控制煞車力，以達成力矩控制與煞車能量回充目的。在研究中首先將建立一整體車輛動態模型，其包含駕駛者行為模型、輪胎模型、馬達模型及電池模型。再利用此模型進行煞車力控制策略與控制器之設計，最後架設再生煞車實驗平台，驗證控制器控制策略與能量回充效率。
並列摘要
For the traditional braking system, it always utilizes mechanical friction method to dissipate kinetic as heat energy, and results in a lot of wasted energy. In order to solve this problem, a regenerative braking system is designed in this thesis. The electric motor is used as a bridge between mechanical and electric energies .To generate electric power for the Ni-MH battery while vehicle is braking. The brake torque of the motor is controlled using a PID controller which decides the duty cycle of PWM. First, a vehicle dynamic simulation model, which included driver, tire, pitch plane, and battery models, is established to represent the dynamic response of the vehicle. The dynamic model can then be used to analyze the electric vehicle system and design the control strategy. Finally, a regenerative braking system platform is established to verify the efficiency of regenerative braking system and proposed control strategy.