Digital Motor for Green Transportation Jun Zheng David Thompson Secondary Floor Location : S 221 E

I have developed a prototype for a new generation of electric motors for use in the automobile industry, complete with custom control and switching circuitry. Unlike traditional brushed motors with armatures that spin around the inside of the motor, my motor does the opposite by spinning the outside with the armature fixed. This motor has been designed to also offer the following advantages: brushless motor control, individual microcontroller control and feedback for regenerative anti-lock braking and traction control potential, individual solenoid control, a programmable motor control system, and an anti stall feature that brushless motors can't offer.

The motor is based on a design I developed in Autodesk Inventor in the summer of 2006. It incorporates a silicon steel armature core with 8 neodymium magnets attached to a 22 inch diameter motor housing. Hidden inside is the innovative optical encoder system that allows precise control and feedback. I have also designed a control system that users can easily interface for controlling the motor. The control system is based on a Microchip PIC 18f8520 microcontroller activating six MOSFET-based H bridge control circuits, control surfaces for accelerating/decelerating the motor, a system shutdown switch for added safety, and a breaker panel for protecting the motor. Each H bridge at ideal conditions can provide up to 47 amps of current at 12 volts if needed. This design first occurred to me in grade 10, before I was aware of the existence of other hub motor designs. I have chosen to pursue this design because I feel frustrated that auto manufacturers are slow to develop innovative electric motors for future automobiles. I believe that electrical potential is the way of the future, no pun intended, and that the best way for me to express this is to start from "ground up". In the near future I hope to see hot rod enthusiasts talk about current capacity and Kilowatts instead of cubic inches and Horsepower.