As a two-wheeler producer, turn your customers into eternal fans.
Secure a competitive edge with Traction‑X’s patented ride comfort and safety advantage.
is a new and patented system of transmission and suspension for scooters, which is particularly light and compact allowing an increase of the wheel diameter, thus yielding beneficial effects on the driving characteristics.
The design of a scooter with Traction‑X powertrain suspension
A combination of secondary drive, drive wheel and wheel
As a passionate motorcyclist, I am not averse to the comfort of a scooter, but I do not want to accept the significantly poorer riding characteristics and the deficit in safety compared toa motorbike. As an engineer, I have therefore developed a new system that combined power transmission and wheel suspension and thus merges the advantages of the motorcycle with the advantages of the scooter. That is Traction‑X!
PROOF OF CONCEPT
In cooperation with the Institute of Automotive Engineering at the Cologne University of Applied Sciences, a scaled demonstrator of Traction‑X has been created. This 3D-printed model, animated by means of a micro-PC, is proof of the feasibility i.e., of the Traction‑X concept.
Details can be read at the blogpost Demonstrator.
TRACTION‑X @ LaborX Hamburg
Last month, Traction‑X was a guest of start-up consultant Dr Jan Evers in Hamburg’s LaborX. His podcast “Ideencouch” is a very special appreciation for all start-ups and budding entrepreneurs. We received a treasure trove of tips and good expert advice in the conversation. In addition, we had a lot of fun!
Many thanks to Jan and his team at the LaborX!
Listen for yourself!
STATE OF THE ART
What is the technical status quo of two-wheeler technology?
Conventional motorcycles often have a secondary drive by means of a link chain or toothed belt. The state-of-the-art in drive technology for these motorcycles is the functional and spatial separation of the drive shaft and swing arm axis, in combination with the central mounting of a conventional rear wheel. The disadvantage of this design is the variability of the distance between the chain sprocket and the rear wheel sprocket in the chain drive or between the front and rear pulley in the belt drive. The deflection of the rear wheel when driving over a bump leads to noticeable repercussions in the drive train, i.e. on engine speed and torque.
The invention on which Traction‑X is based is a device for transmitting the drive torque from the engine of a wheeled vehicle to its drive wheel and for shock-absorbing and resilient suspension of the drive wheel itself. An extremely compact design is achieved, which features great advantages especially for motor scooters.
1a parallel key
2 retaining ring and ring groove
3 grooved ball bearing (movable)
4 deep groove ball bearing (fixed)
5 cylinder screw
6 left housing cover
7 gear wheel with external teeth
8 housing cover and right-hand side wheel hub
9 right-hand side wheel hub
10 needle bearing (movable)
11 radial shaft sealing ring
12 deep groove ball bearing (fixed)
13 drive sprocket for chain drive
14 shaft nut with lock washer and shaft groove
15 cylinder screw
16 right housing cover
18 radial sealing ring wheel circumference right
20 wheel rim
21 radial sealing ring wheel circumference left
22 drive gear with internal toothing
23 shaft nut with lock washer and shaft groove
24 radial sealing ring
25 bolted interface of the hub halves
26 screwed connection with suspension strut axle
27 riveted connection of wheel rim to drive gear 22
28 securing screw for wheel bearing outer ring
29 securing washer for wheel bearing outer ring
30 securing screw for wheel bearing inner ring
31 securing washer for wheel bearing inner ring
32 spring strut axis
33 spring strut with damper cartridge
Drive-Train Roller-Ring Swing-Wheel
101a ring groove
101b ring groove
102 retaining ring and ring groove
103 deep groove ball bearing (floating) for chassis
104 deep groove ball bearing
105 cylinder screw
106 left housing cover
107 drive gear with external teeth
108 housing cover or right-hand side wheel hub
109 housing cover or left-hand side wheel hub
110 track roller 1
111 needle bearing (movable)
112 radial shaft sealing ring
113 deep groove ball bearing (fixed)
114 chain drive sprocket
115 shaft nut with lock washer and shaft groove
116 cylinder screw
117 right-hand side housing cover
119 radial shaft sealing ring wheel circumference left
121 wheel rim
122 radial shaft sealing ring wheel circumference right
123 drive gear with internal toothing
124 shaft nut with lock washer and shaft groove
125 radial shaft sealing ring
126 screwed connection of two wheel rim halves
127 screwed connection with spring strut axle and track roller 2 housing
128 riveted connection of wheel rim to drive gear 123
129 track roller 2
130 securing ring for track roller 2
131 suspension strut axle
132 screwed connection for track roller 3 housing
133 track roller 3
134 securing ring for track roller 3
135 suspension strut with damper cartridge
A compact secondary drive unit for a scooter
Traction‑X is a new and patented vehicle drive concept that enables small unsprung masses, extremely efficient use of space and large wheel diameters, which is particularly advantageous for scooters.