A Characteristic Analysis and Power Driver Design for Electric Moped
|關鍵字:||電動自行車;輪鼓馬達;充電電池;馬達驅動器;Electric Moped;Wheel Motor;Rechargeable Batteries;Motor Driver|
In this thesis, we analyzed wheel motor and rechargeable batteries for electric moped. In current stage, there are two kinds of motor used by electric moped: brush dc motor and brushless dc motor. Because of lower cost, easy to control and control stability, brush dc motor is widely used in building electric moped. However, brush dc motor had become more inadequate in later development due to short operating life. On the contrary, brushless dc motor has several characteristic such as high efficiency, excellent reliability, enough locked rotor torque and mature contract technology. Hence, brushless dc motor is becoming substitute for brush dc motor. In rechargeable batteries area, all of the rechargeable batteries are not have enough lasting power and that can't supply enough electricity for uphill path. Hence, this thesis purpose that take use of the battery electricity supported by the ultracapacitors, providing large current output within a short time to protect as well as extend the efficiency of rechargeable batteries. With the actual design and manufacture of a motor driver, the major core of system is using MC33035 brushless DC motor controller and all frameworks are building from driver circuit, control sensor feedback circuit, power supply and input/output circuit. To further consider the issue of security, the functions of 8051 micro-controllers will be increased. Let the driver of electric moped could get more security protection.