BMW E-Scooter

The concept E-Scooter can carry two people, yet still comfortably handle hill starts.

The high storage capacity of the battery allows a daily driving range of over 100km at speeds up to 60km/h. The battery can be charged in three hours, with no special socket needed for home charging.

Unlike existing maxi scooters with combustion engines, the concept vehicle does not have a main frame. Instead, the aluminium battery casing - which also contains the electronic system required for battery cell monitoring - takes over the function of the frame. The steering head support is connected to it, as is the rear frame and the left-hand mounted single swing arm with directly hinged, horizontally installed shock absorber.

Due to its high output, the E-Scooter has no hub motor with direct drive or planetary gearbox. Instead, the high performance electric machine is mounted behind the battery casing. The secondary drive consists of a toothed belt from the electric machine to the belt pulley mounted on the swinging fork pivot with drive pinion. From here, power transmission occurs via roller chain to the rear wheel. When the E-Scooter is decelerated in throttle or when braking, the energy released is recuperated, thereby increasing the vehicle's range by between 10 and 20 percent.