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Electrically assisted Human powered vehicle (Effi-cycle)

Electrically assisted Human powered vehicle (Effi-cycle) 

Click Here for complete design and Fabrication report


Design Phase ( Feb - May 2013) 
The basic idea of Efficycle is to design and Fabricate an EHPV(Electrically assisted Human Powered Vehicle). The Vehicle was developed with following highlights, 


  •          Three wheeled vehicle( tadpole configuration)
  •          Driven by two drivers.
  •           Double individual crank mechanism.
  •           Electrical drive with BLDC MOTOR.
  •           Electronic assistance for automatic gear changing.
  •           Ergonomic seat and vehicle design.
  •           Modified Ackermann system for steering.
  •            Telescopic suspension arrangement.
  •             Front disc breaks and shoe brakes for the rear.
  •        Extra provisions for drivers safety with tool kit and medical kit  
Fabrication Phase (June- Oct 2013)
 The fabrication phase had its utmost importance and endurance. the vehicle was made with all the interest and engineering skills we had. 

Innovation: 

      Manual and Automatic gear shifting mechanism, using the Speed sensor, Arduino, a stepper motor.       the Stepper motor gets the command from Arduino and whose input is from a speed sensor placed to the rim of the wheel. The rotation of the stepper motor depends on the speed of the vehicle. If the speed of the vehicle exceeds a certain value which is sensed continuously by a speed sensor, then the stepper motor undergoes a rotation which leads to the pulling of derailleur cable. This continuous mechanism leads to the shifting of gears automatically.

Photos:

Electrical Drive

Manual Drive

Vehicle view

Vehicle on road












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