Рет қаралды 6,137
From April 2020 to September 2021, "2nd-Hand Mobility" was offered as a project workshop at the TU Berlin. As part of this, students developed a drive module for Simson mopeds with which the former combustion engines can be converted to an electric drive in just a few steps. The conversion should be possible in three hours, even for an inexperienced person. We took a look at it at the micromobility expo 2022 in Hanover.
The conversion kit, which consists of a control unit, battery and electric motor, is suitable for the Simson S50, S51 and the Schwalbe KR51/2 models. The choice came about because these models are the most widely produced mopeds in this country. They are also very robust and look great.
The top speed is 60 km/h - just like the combustion engine. The range is 50 km. Currently, conversion kits limited to 30 units are available for 2690 €. The package includes everything you need for the conversion and the registration.
The drive module consists of the electric motor, a control unit, wiring harness and other electronics. Since there is high-power voltage, the cables must be sheathed in orange. The brushless DC motor produces 3 kW (i.e. 4 hp) nominal and 4 kW (i.e. 5.4 hp) peak power for a very responsive pull.
The attachment points on the frame are identical to those of the combustion engine. One aim was to visually emulate the 2-stroke engine and thus retain the character of the original moped.
The seat contains the battery, the battery management system and other electronics. The curved sheet metal construction is padded with 3 cm of high-density composite foam for comfortable seating. The battery cells are LG brand cells with a total capacity of 1.8 kWh, which corresponds to a range of 50 km. The normal on-board battery remains in the box, the on-board electronics are switched to 12 V. In contrast to 6 V, the entire vehicle lighting shines much brighter and one is thus better seen in road traffic, which brings a plus in safety.
The third module includes the throttle twist grip, a speedometer with battery level indicator and a classic ignition lock. The final components have not yet been finalised and the appearance may also change.
Further information at second-ride.de