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Demo Kit of Electronic Bicycle

Demo Kit of Electronic Bicycle. The Requirement. b. b. Bicycles are used for leisure, sports, tournaments. Bicycle is also used as a kind of transportation tool. As a transportation tool; the need of saving human energy arises. Meanwhile, the need of electronic bicycle arises. b. b.

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Demo Kit of Electronic Bicycle

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  1. Demo Kit of Electronic Bicycle

  2. The Requirement b b • Bicycles are used for leisure,sports, tournaments. • Bicycle is also used as a kind of transportation tool. • As a transportation tool; the need of saving human energy arises. Meanwhile, the need of electronic bicycle arises b b

  3. It is a bicycle with a DC motor and a rechargeable battery • It is not a motorcycle, so some limitations are applied • Speed, weight, loading • It is a tool, the safetyis significant.

  4. Block diagram Front Panel Throttle MCU ST7LiteX ‘1+1’Assistant VCC 36VDC Cruise Voltage monitor PWM Brake TD221 Current MOS Battery Array 20kHz Relay

  5. Why use ST7liteX MCU? • Quick and accurate compute. • Easy to upgrade and add new functions • Compatible with different sensors and requirements • Close loop control • Cheaper price & high quality performance

  6. Features of demo kit • Adjustable speed steplessly • Throttle Holler sensor input : 5V output : 1.2V ~ 4.7V • Cruise. Run the bicycle in a preferred speed. • No need to grasp throttle • Speed detection & display. • Holler sensor x pulses in a cycle

  7. Rider force Rider force and electric power as one, push the rider and vehicle into operation Intelligent sensor + controller Electric power motor • '1+1' assistant. The machine provides the same power as the rider does. • Need a torque/speed sensor for close loop control

  8. k, ∫ dx, dy/dx PID control Speed sensor PWM control Torque sensor • Voltage low detection & warning. • Over current detection & protection. Close loop for better performance

  9. speed Restore time t Brake or motor jam,etc • Run away protection. Cut off the motor power in case of uncontrolled situation, and restore the speed in a safe slow process.

  10. Schedule • DEC,2003 Prototype SCH/PCB completes. • DEC,2003 Basic software coding complete. • JAN,2004 Hardware & software debug. • FEB,2004 Open loop debug completes. • Testing of full set will be made.

  11. THANK YOU!

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