First throttle with potentiometer to vary the input reference voltage to the controller dedicated to the motor from 0-5v. The efficiency of speed variation and acceleration was not upto the mark as some lag is produced due to the significant voltage drop at the throttle. The acceleration was not satisfactory.

Now we have installed a throttle that work based on the Hall effect principle. This has increased the acceleration rate to the pressure applied on the pedal. Efficiency of acceleration is increased as the system consist of IC and a magnet. This system also reduced the size of the throttle pedal