The TWIKE is the first and only car that combines the electric motor with a pedal drive. Muscle strength is directly converted into kinetic energy. Not only is the efficiency of the vehicle greatly improved but its range is increased as well. By steadily pedalling while driving, the TWIKE is transformed from a pure means of transportation into a training machine for muscles and circulation.
How much muscle power the driver uses is up to him. An average-trained driver can contribute 100 to 200 W through pedalling power. At a speed of 50 km/h, this corresponds to about 10 to 20% of the total energy demand. The pedal drive is intended to assist the motor but not as the sole power source of the TWIKE.
The principle of combining pedal drive and an electric motor as well as the handling is quite simple. Both drives go directly to the drive shaft: The pedals through a chain, the motor via the gearbox. The speed can be set by Cruise Control. When you pedal, the electronics restrict the motor to the exact power you place on the pedals and the range increases.