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Battery scooters, while promising in theory, aren’t all that practical if you live beyond the city borders - as usual, the problem is range.
Now, however, BMW hopes to give its take on two-wheeled electric rides with its new E-Scooter concept.
The project, backed by Germany’s Federal Ministry of Transport, Building and Urban Development, is focused on delivering a vehicle with performance to match those of a maxi scooter as well as the range needed in realistic driving conditions.
RECHARGE IN THREE HOURS
The German automaker claims the E-Scooter will achieve competive acceleration to 60km/h and its high capacity batters allows for a claimed driving range of more than 100km and can be charged through a household power socket.
A depleted battery can be recharged in less than three hours.
The concept vehicle, unlike a maxi scooter with a combustion engine, does not have a main frame; that has been replaced in the BMW by the aluminium battery casing which also contains the electronic system required for battery-cell monitoring.
Due to its output, the electric scooter has no hub motor with direct drive or planetary gearbox. The secondary drive consists of a toothed belt from the electric machine to the belt pulley mounted coaxially on the swinging fork pivot with drive pinion.
From here, power transmission goes through a roller chain to the rear wheel. When the E-Scooter decelerates on a trailing throttle, or under braking, the energy released is recuperated, stored and increases range by 10 to 20% depending on driving profile.
While a coolant is commonly used for the battery in electric, the E-Scooter concept uses air cooling to save space.
BMW has not released details regarding the launch but expect the E-Scooter to be featured later in 2011.
Now, however, BMW hopes to give its take on two-wheeled electric rides with its new E-Scooter concept.
The project, backed by Germany’s Federal Ministry of Transport, Building and Urban Development, is focused on delivering a vehicle with performance to match those of a maxi scooter as well as the range needed in realistic driving conditions.
RECHARGE IN THREE HOURS
The German automaker claims the E-Scooter will achieve competive acceleration to 60km/h and its high capacity batters allows for a claimed driving range of more than 100km and can be charged through a household power socket.
A depleted battery can be recharged in less than three hours.
The concept vehicle, unlike a maxi scooter with a combustion engine, does not have a main frame; that has been replaced in the BMW by the aluminium battery casing which also contains the electronic system required for battery-cell monitoring.
E-BIKE: BMW’s new E-Scooter has a claimed range of more than 100km/h and can be charged in three hours.
From here, power transmission goes through a roller chain to the rear wheel. When the E-Scooter decelerates on a trailing throttle, or under braking, the energy released is recuperated, stored and increases range by 10 to 20% depending on driving profile.
While a coolant is commonly used for the battery in electric, the E-Scooter concept uses air cooling to save space.
BMW has not released details regarding the launch but expect the E-Scooter to be featured later in 2011.
