Revision as of 06:55, 4 January 2020

UELVEs MBC

Intended as a lightweight proof of concept for further development of additional larger (and smaller) hybrid and tribrid electric vehicles.

Acronym decoding:

UELVEs: Ultra-Efficient Libre Vehicles for Everyone.
MBC: the Embassy, or the "MythBusters Car" (get it?), in honour of their discovery that a golf-ball texture on a car bodypanels significantly improves fuel economy. https://www.youtube.com/watch?v=VUiGhyHC-1A

4 wheels using mountain bike 19in rims and 2.75/19 motorcycle tires
100kg weight
2 occupants
Twin 3-5kW Axial Flux BLDC chain-driven motors (no gearbox needed)
1.1 x 1.5 x 3.4 metre dimensions with an "airbox" down the centre
Only a 1.1 m^2 front surface area (due to the "air tunnel")
0-60mph in under four seconds (Sur-Ron "3" kW Motors can be pushed to 13kW for short durations, and there's two of them)
over 200mpg at 55mph due to low weight, low rolling resistance, reduced surface area and low drag coefficient.

Use downhill mountain-bike parts that have been proven to be light, strong and effective up to a 50kg weight with an 80kg load, thanks to the Sur-Ron Electric Bike.
Use twin Sur-Ron direct-drive 3-5kW Axial Flux electric motors
Use twin ASI BAC4000 BLDC Controllers (or VESC Vedder BLDC Controllers http://vedder.se/2015/01/vesc-open-source-esc/)
Outer skin using the GABoats technique (Geodesic Aerolite Boats) - http://gaboats.com
Inner frame using 3D-printed fibre-reinforced "nodes" connecting continuous-fibre-reinforced pipes on a Fibre_Reinforced_Pipe_3D_Printer or getting carbon-fibre, hemp-reinforced tubes (or even Bamboo), based on the Divergent 3D "Blade" car manufacturing concept https://www.youtube.com/watch?v=vPv7PwS50OE
Epoxy-soaked cloth "wrapping" carried out on joints, if necessary, using the Calfee Design Bamboo bike technique. https://calfeedesign.com/what-is-in-calfee-diy-kits/
Swappable Modular batteries using the Open_Source_Battery_Pack