Tulpa – Homebuilt Full Suspension Trike

http://pictures.care2.com/view/1/174801833/0

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BikeEV

BikeEV Specifications

The following list of specs is primarily from my memory; errors and omissions will be corrected as they are discovered!

Motor:

24V permanent magnet DC (PMDC), 1HP with integral 11:1 right-angle reduction gearbox (330RPM max. at output shaft). Sourced from EMD (Electric Motor Developments) in Essex, UK. (approx. 23lbs)

Controller:

Made by Curtis (1206?), purchased rebuilt from Test Engineering with custom 80A current limit to protect the motor.

Batteries:

2 Hawker Genesis 12V 26Ah sealed AGM lead-acid batteries, wired as a 24V pack.

Powertrain:

Parallel human/electric hybrid. The rear wheel is driven by a 7-speed Sachs internal hub, which is in turn chain-driven from the motor output shaft (at a 1:1 ratio?). The motor output shaft can be driven directly by the electric motor as well as by the pedals, via a 7-speed cassette. A freewheel between the 7-speed cassette and the motor output shaft allow the pedals to remain stationary even while the motor is running.

Performance:

Top speed:

50kph (level ground, electric only)
60kph (electric + pedal assist).

Range:

30km to 80% DOD (real-world commute with hills at full speed with occasional pedal-assist).

Cost:

Bike (including Zipper fairing and Sachs hub): C$2500
Electric drive components: C$500

Weight:

approx. 100lbs total (23 motor + 29 bike + 23/battery + misc.)

The adapter and drive sprocket are now mounted on the output shaft, and the 7-speed cassette/freewheel threaded onto it. Unfortunately, I neglected to get a photo of the adapter on its own first. The output shaft has also been shortened at this point.

One of the two Hawker Genesis batteries is visible, suspended from the seat frame. The 12V batteries are wired in series to supply the 24V motor.

From the run of the drive chain, it is evident that the drive and driven sprockets are about the same size (24T, IIRC). The largest sprocket on the cassette driven by the pedals is a few teeth bigger (26T, again IIRC). The drive ratio from the motor back was chosen to allow a top speed of about 60kph, and the ratio from the pedals to allow a cyclist to provide some degree of pedal assist at all speeds.

http://www.geocities.com/Yosemite/Gorge/9546/bikev/bikev.htm

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Flevobike Versatile

"This is the first time that I’ve been able to take a really close look at the Flevobike Versatile velomobile.  This is a very impressive machine.  The interior looks more like a Mercedes Benz than a velomobile and the numerous custom parts are very well designed and well made.  The handling and suspension are outstanding and I was very impressed with the mesh seat.  Unfortunately all of this comes at a very high price.  7800€ is a lot of cash for a velomobile no matter how nice it is.  http://www.flevobike.nl";

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WAW

Length 2,8m
Body length without nose and tail : approx. 1,8m
Length without nose and tail incl cranck axle and wheel holders 2,1m
Hight 0,9m
Height from ground to bottom 0,1m
Track width 0,75m
Body width 0,70m
Wheel base 1,30m

Steering
Two steering wheels at the front, one driven rear wheel.

Front wheels : hard suspension (steel spring with friction damping in Aluminium McPherson; from Velomobiel.nl)
tyres : maxium 40-406 (20"x1,5)
brakes: drum brakes, separately used from each other

Rear wheel : no suspension
tyres : maximum 60-559 (26"x2,35)
brakes : none
Steering is done by moving two handles next to the body.

Turn radius : approx. 8m

All existing gearing systems kan be implemented in the WAW.

Standard is a derailleur system : three sprocket wheels at the front (32-42-52 tooth), nine sprocket wheels at the back (11-12-14-16-18-21-24-28). Operating the gears goes with a DeoreLX dual controll handle. In combination with a ‘top normal’ derailleur is this system a comfort for changing gears.

Rohloff hub gear, Schlumpf Mountaindrive or SRAM 3×9 can be implemented without any problem.

The standard cranck length is 170mm, smaller crancks make pedalling faster (happy knees !) and more space for knees and feet.

Materials ::
The whole self-supporting structure is made from a mix of carbon and aramide fibrel with epoxy resin, approved for aviation industry.
The outer side is a very though epoxy coating , avoiding deep scratches and simplifying reparations.

Most of the mechanical parts are in aluminium.

All WAWs are paint-sprayed; colours can be choosen from these colour schemes :
-RAL
-MOTIP (including metallic colours). In fact; most car colours can be chosen.

For a supplement in price WAWs can be paint-sprayed with a SIKKENS- paint, also with pearl effect.

In each WAW a hood, inclusive visor, is included. The hood protects you from rain. Via the necessary ventilation cracks small raindrops can enter anyway. When standing still, there is no ventilation; opening the visor avoids it from steaming. Also when driving, the visor can be opened when visibility decreases.

Obviously, driving without hood is also possible; or the hood hood can be attached on top of the body. Test prove that this does not decrease speed or visibility.

Efficiency/Speed:
Approx. 50 km/h for a 250 W capacity. Of course depending on the model (e.g. with or without hood), type of tyres etc.

(for your comparison : a sporty bike for daily use goes 33 km/h, a racing bike goes 37,5km/h).
On the website of Kreuzotter simulations can be made for different user conditions (uphill, wind,…). The WAW has the characteritics of a "streamlined trike".

Weight: in between 24 and 35 kg, depending on the model.

For use in hilly regions a BionX electric power assistance can be built in.

Lenght of the drivers:
length between approx. 1m60 and 1m90. The critical places are around the feet and the knees. A lot of space can be won with the use of short crancks (e.g. 125mm instead of 170)
With 170 crancks is shoe size 45 maximum .

Width : The WAW is rather small, critical places are between the wheel wells and shoulder width. In between the wheel wells come the thighs, here is 36 cm free space. Perfect shoulder width is 48cm.

http://fietser.be/fietser.htm

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go one

First Carbon Chassis Velocipede
This is the first human powered vehicle (HPV) to have a carbon fiber monocoque chassis, the same material found in the fastest high-performance Formula 1 automobiles, making it the worlds most advanced three-wheeled velomobile. Designed by world-renowned designer Michael Goretzky, the customized vehicle combines the low-impact exercise benefits of a recumbent bicycle with the stability of a three-wheeled cruiser and the aerodynamics of a concept automobile. Carbon fiber provides the chassis with an exceptional strength-to-weight ratio, making the chassis as strong as the steel used in modern automobiles at a fraction of the weight. At a mere 60 lbs., the velo weighs approximately 1/50th of a combustion or hybrid-electric automobile, yet n ever needs to be refueled. Unlike traditional three-wheeled vehicles, the low profile tadpole design has two forward 20" wheels that allow for sharp, tight turning at higher speeds that would normally tip a traditional three-wheeler. The cockpit is a slipstream airfoil shape that practically eliminates drag and, coupled with full independent suspension, front shock absorbers, and rear tunable damping, ensures smooth and consistent speeds. The interior has a recumbent seat with variable longitudinal pedal geometry for a customized fit that maximizes comfort and pedal power efficiency. A Shimano derailleur and SRAM Gripshift Rocket shifter on the hand control allows smooth, shudder-free shifting. The velomobile has a headlight, tail light, a nd turn signals powered by a rechargeable battery. *For Personalized Service on this item call 1-800-227-3528 between 8 a.m. and 12 p.m. Eastern time, and our Product Specialists will gladly answer all questions and provide additional service information about the First Carbon Chassis Velocipede, including taking your measurements so the Velocipede can be custom made to fit. Includes white glove delivery. Please note that special conditions and guarantee limitations apply to this product. 28 1/2" H x 30" W x 104 1/2" L. Wheel base is 53". (60 lbs.)

Item 10942  ……………… $13,999.95

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City-el

Overview:

Number of seats	1+1
Maximum speed	50	km/h	32	mph
Range	30-50	km	19-32	miles
Price approx..	12	TDM	9000	dollars

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Technical details:

Road performances and consumption:

Consumption	4-10	kWh/100 km
Max. climbing performance	16	%

Battery:

Number of batteries	3	Piece
Total voltage	36	V
Capacity [ ah ]	90/100	Ah C5
Battery manufacturer 90Ah	Yuasa		Trojan 30XHS AP
Battery manufacturer 100Ah	Versch.

Motor:

Rated output	2,5	KW S2	3.35	hp
Maximum performance	3,5	KW	4.69	hp
Rated voltage	36	V
Rated current	90	A
Max. torque approx..	70	Nm	51	Ft-lbs
Type	GS/Comp
Manufacturer	Thrige titan
Type	TTL 140B
Cooling	Air

Motor control:

Type	Pulse Width	Modulation
Rated voltage	36	V
Rated current	275	A
Working frequency	15	KHz
Manufacturer	Curtis
Type	1204X

Power transmission:

Number of transmission steps	1
Speed ratio approx..	7,2:1
Transfer	Poly V belt

Battery charger

Type
Rated output		W
Charging time to 75 %	3	Std
Charging time to 100 %	8-9	Std

Mass and weights:

Length	2741	mm	9	Ft
Width	1060	mm	42	in
Height (hood closed)	1260	mm	49.61	in
Height (hood open)	2380	mm	94	in
Wheel base	1810	mm	71	in
Track width	930	mm	36.61	in
Turning circle	8550	mm	28	ft
Ground Clearance	120	mm	4.72	inches
Unloaded weight	290	Kg	640	lbs
Additional load	110	Kg	242	lbs
Admissible total weight	400	Kg	882	lbs

Tire:

Type	80/70 -16
Manufacturer	Continental

Brakes:

Type	3	Drum
Operation	Hydraulically
Brake circuits	2	in front/in the back

Heating:

Type	Electrical
Amount of heat	400+400	W
Blower	2	Levels

---

Configuration:

• Heater/Defroster
• Glass sliding roof
• Two outside mirrors
• H4 55/60W main headlight
• Windshield wiper and washer

Safety configuration:

• Three point inertia reel belt
• Roll bar
• Laminated glass windshield
• Safety glass side windows
• Energy absorbing body

Options:

• Radio console
• Loudspeaker installation console for roll bars
• Lap belt for protecting a child seat
• H-belt for child of 3-9 years + backrest for child
• Ashtray (Pfui!)
• Battery heating
• Soil mat

Body:

Plastic sandwich structure self-supporting

PURELY foam with PMMA+ABS bowl

City-El Driving resistances

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Marco Reichel, a fellow " el " driver, has worked out a program for driving resistances, here the results.

Input data:

Mass	400 kg
Rolling friction number:	0,01
Air resistance number:	0,3
Frontal Area:	1 m²
Wheel diameter:	0,52 m

Required power at the wheel in Watts as a function of speed with different gradients

km/h	Ebene	5 %	10%	15%	20%
10	113	658	1203	1748	2293
20	248	1338	2428	3518	4608
30	428	2063	3698	5333	6968
40	675	2855	5035	7215	9395
50	1013	3738	6463	9188	11913
60	1462	4732	8002	11272	14542
70	2046	5861	9676	13491	17306

NPC-Black Max Motor

A beast of a motor, the Black Max is the motor to use when you are done kidding around with the small stuff. This incredible motor packs nearly 4 horsepower under it’s hood. It will need a VERY beefy speed controller, or a solenoid-powered switch to be activated because of it’s high current draw.

24V to 36V
Reversible, Permanent Magnet, center timed
15.5 pounds
3400rpm @ 24V (approx 140rpm per volt)
draws 200 amps normal use, 470amps at stall
3.8 horsepower
5/8" output shaft with 3/16" key slot
Steel mounting bracket included

$265

http://www.robotmarketplace.com/marketplace_motors_npc.html

Runabout Cycles

• Fully integrated front and passive rear suspension.

• Scratch resistant powder coat, custom colors available.

• Fully adjustable pedal boom and seating system.

• Multiple battery options including;
  Top quality Lithium-Ion Saphion Batteries

• Optima Deep-Cycle lead-acid gel battery

• Perm pmg 080 2000 watt motor

• Forward, reverse, and regenerative braking capabilities.

• 4qd programmable speed control can meet Federally mandated 20 mph maximum speed classification for electric bicycles.

• Optional Alltrax AXE controller allows more amps and more tuning options with only a 5 pound weight penalty.

• Smooth, powerful disc-brakes.

• Electronic fuel meter: battery capacity and fuel consumption rate.

• Electronic bicycle computer: speed, distance, time.…

• Super strong and lightweight 20” wheels with wide selection of tires readily available.

• LED tail lights, reflectors, and a free helmet for safety equipment.

• Base retail price: $ 4,700

http://www.runaboutcycles.com/

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Stein Trikes

www.steintrikes.com

CT:

CT Technical specification:

Frame material	Manessmann ST35BK seamless hard steel
Wheelbase	980 mm / 38.6"
Track	800 mm / 31.5"
Total width	920mm / 36.2"
Frame clearance	130mm / 5.1"
Steering system	Under seat steering system
Front wheels size	19-406 / 20"x1.75"
Rear wheel size	19-406 / 20"x1.75"
Front hubs/brakes	BITEX alloy hub shells w/12mm bearings,  BITEX mechanical disc brakes
Leg length adjustment	254mm (10")
Seat Angle	50-70º from horizontal, adjustable
Advanced frame features	foldable back seat section
Weight	from 16kg (depending on equipment)
Price (frame kit)	1095 EUR

Road Shark:

Road Shark Technical specifications:

Frame material	Manessmann ST35BK seamless hard steel
Wheelbase	1100-1200 mm / 43.3"-47.2"
Track	640 mm / 25.2"
Total width	720mm / 28.34"
Frame clearance	130mm / 5.1"
Steering system	Under seat, cross linked rods steering system
Front wheels size	19-406 / 20"x1.75"
Rear wheel size	20-559 / 26"x1.75"
Front hubs/brakes	BITEX alloy hub shells w/12mm bearings,  BITEX mechanical disc brakes
Leg length adjustment	254mm (10")
Seat Angle	30-45º from horizontal, adjustable
Advanced frame features	removable rear end and seat for easy storage or transport
Weight	from 16kg (depending on equipment)
Price (frame kit)	1195 EUR

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