Portfolio 2015
Transportation Design Dennis Redmonds
U-pod
R.E.S.U. (Range Extending Self-Sufficient Unit)
1.Urban
The U-pod is still in city mode and communicating soon to come connected to the R.E.S.U. when reaching the parking lot.
2.Connection The docking station is getting ready for the connecting process and is adjusting the angle of the U-pod.
The R.E.S.U. is still in the solar mode and getting ready for the connection.
3.Transformation The two parts, the rear The panel with the U-pod and the pod. front with the R.E.S.U., are connected and folded into each other.
encloses the U-
4.Travelling The Velcura is now ready for driving. The rear battery is being charged by the R.E.S.U., which has saved the
solar energy from the solar mode. This way the U-pod is ready and charged for the next city mode period and
only the collected solar energy from the parking period was used to charge the car, which is making it even more efficient.
TIME TRIAL BICYCLE
(Design 2013)
Aerodynamic CAR Sketches Random Car Sketch with focus on Aerodynamik shape
Airflow on a surface without structure
Aerodynamics
The material structure is reducing swirls in critical areas - similar like sharkskin. The surface bumps will flatten the airstream.
Airflow on a surface with structure
AUDI Sketches
(Design 2013)
The following pages include random Audi sketches drawn by digital using SketchbockPro and a Wacom Cintyq
AUDI Sketches
(Design 2013)
The following pages include random Audi sketches drawn by digital using SketchbockPro and a Wacom Cintyq
INSPIRATION
HHPV
DOUBLE LAYER
Hybrid Human Powered Vehicle (Redesigned 2012) In this project I wanted to design a vehicle that is ecofriendly and helps preserve natural resources, as the consumtion of natural and fossile energy resources has been increasing, but should also fulfill comfort needs e.g. for daily commuting. The HHPV - Hybrid Human Powered Vehicle is a partly covered recumbent bike, which is mainly powered by human muscular strength. That way no fossil energy is consumed and the impact on the invorenment is low. Electric motors are inclu-
ded to support the driver to reach certain speed and distance requirements. The vehicle is partly covered to protect the driver from different weather conditions and at the same time to use aerodynamical advantages. Compared to a normal bycicle the range of use of this vehicle could be far more extended. It should motivate the user to use it instead of a car for short and middle distances.
WHY? - Safe feeling - Cover - Protection
HOVERING PANEL
POLY SURFACE
- Lightness - Efficiency
- Strength - Respect
SKETCHES DAILY COMMUTE
EASY ACCESS/ DESIGN The panel opens up easily and allows for a comfortable access. The aerial and open design reduces heating effects of standard velomobiles. The low seating position reduces the face surface, which is an aerodynamical advantage. But the position was chosen that way, that both the aerodynamic resistance is reduced as well as it also allows for the driver to have a good overview in traffic and still feel save in his vehicle.
TECHNOLOGY FOAM
The driver is protected during a core of foam. It is applied inside the panel and around the Head area. If an accident happens the foam works as a „crush zone“ and can transform the force effect into deformation energy.
SPECIFICATION
TRUNK
Thin layer SOLAR CELLS
The rear cover panel has aerodynamical reasons as well as it includes the trunk with a capacity of maximum 55 l.
1.6 m² thin layer solar cells are used to charge the included batteries additionaly. This way the driver can be supported by the electric motor charged through sun power for up to 10 kilometers daily withour extra charging.
Power: 2 KW (3 KW max.) Speed: Governed 70 km/h PV Output a Day: 200 Watts Battery: 1,6 kwh 80 km (exkl. PV) Range: Charge Time 3kw: 25 min. 0-80 % 0-100% 60 min. Length: Height Width: Weight:
2750 mm 1300 mm 1000 mm 48 kg
HUB MOTOR
A 1000 Watts brushless DC Electric Motor is integrated on each Wheel, so whenever the driver is braking the energy that would normally be lost can be transferred back to the battery through the electric motor.
Lithium Nickel Manganese Cobalt Oxide A LiNiMnCoO2 battery fulfills the car requirements best, as she combines a light weight and a quick charge option with a long lifespan.
TILTING TECHNOLOGY SOFT KILL OPTION With the SKO-Principals (Soft Kill Option) the natural growth of biological structures like bones can be closely copied. During this bionic method the weigth of the vehicles components like the frame, the link, rims or cover parts can be reduced up to 30% by having an even higher stiffness.
PEDALING SYSTEM
To secure a safe cornering and still allow a low width the vehicle comes with a tilting technology.
AERODYNAMIC
ACTIVITY RANGE DOWNFORCE
Range
HHPV
The top panel of the HHPV and the foam underneath are designed in a way that the profile looks like a wing, but up side down. To build it this way allows to use the pressure difference between the top and down side of the „wings“. The air needs to cover a higher distance below the wing and therefore accelerates and creates a downforce at hire speeds which will keep the electric bike save on the road.
100 km
80 km
60 km
The applied cover guides the wind around the vehicle and merges behind the tapered back cover. Turbulences behind the HHPV can be avoided with this cover design.
20 km
0 km
WALKING
10 km
BIKE
Air duct
PEDELEC
40 km