The TCM crank drive motor
Base on Directives-EN15194 and Chinese national standard-GB17761.
III. Principle features
1. Three riding modes
Our bicycle can be ridden in three modes: power assistance riding, electricity riding and rider riding.
1) In power assistance riding mode, electric generator outputs the same power as that of rider riding mode, which makes rider feel the system provide power obviously and ride in easy way.
2) In electricity riding mode, electric generator output is separated from the rider riding mechanism to ensure riding safety.
3) In rider riding mode, no additional resistance comes from the magnetic resistance of electric generator which makes bicycle running as ordinary bicycle.
2. Ultra-low noise
Ultra-low noise application is used in the product, which ensures the starting noise and running noise keep 10% below the noise of hub motor.
3. Transmission structure well-designed with high safety performance and powerful climbing capability
The power output is generated at the location of mid-shaft of the product where the concentric output shaft is applied to match the traditional transmission structure of bicycle. The arrangement of mid-drive system ensures the mass distribution of bicycle fitting enough to improve the safety performance of bicycle. In addition, the shift system assembled at rear shaft enhances climbing capacity which is 2 times more than that of hub generator.
4. Easy to assembly
The structure of the system is simple in the way of installation, ie single pivot installation.
5. East to fit the frame of bicycle
The framed assembled with the mid-drive system could be designed in simple structure due to easy installation of the system.
6. Compact structure of the system
The compact structure does not affect the structure of the frame so much that bicycle looks like ordinary bike.
7. Lower power consumption and longer driving range
The perfect structural combination between the system and entire bicycle saves power consumption well so as to extend driving range. The driving range of bicycle assembled with lithium battery of 36V/9Ah will be 40km in electricity mode while 100km in power assistance mode.
8. Perfect design
The most advance design concept is performed with adjusting the hysteresis loop of permanent magnetic material and controlling algorithm to fulfill perfect integration of power system optical property and entire bicycle dynamics.
9. Stringent requirement of standards to ensure quality control system implemented
In the process of the development and production of the system, company works with National Motorcycle Quality Supervisory & Testing Center (Tianjin) to conduct all performance tests according to relevant standards to ensure the reliability and stability performance of the system.
IV. Stringent verification in durability test for the system
In the standardized process of mid-drive power system of electric bicycle, the system has been tested in accordance with standards to ensure quality performance. The following durability tests have been conducted.
1. Durability road test
Comprehensive durability road tests was performed with overall 5000km long road, the test track includes Even road, Belgian road, Washboard road, Sand and dust road, Big sine wave road, Ramping road and so on.
2. Durability bench test
Driving speed at 20km, test duration lasts more than 500 hours, the equivalent driving range is more than 10000 km.
3. Peak torque impact test
Continuously starting the system is more than 10,000 times under peak torque.
4. Dust proof and water proof test
Continuously performing the tests lasts more than 2 hours under the requirement at the level of IP54.
5. Strength durability test
Continuously performing pedal treading test is more than 100,000 times with150kg rider.
V. Specification:
items
specification
Rated voltage (V)
24/36
Rated power (W)
180-250
Generator type
Permanent magnet, direct currency, non-brush, non-Hall
Gear system
Steel gear
Max speed (r / min)
90
Peak torque (N · m)
60
Profile dimension (mm)
200 × 205 × 165
weight
≦ 4.5kg
noise (dB)
≦ 50
Dust proof, water proof
IP54
Sprocket chain
48T
Mid-shaft
D-inner screw thread
Power assistance sensor
Inner embedded, speeding type, 12 signal /
Ignoring the Chinglish,this gives as much info as I have available,the TCM motor is probably the most powerful(genuine 60Nm)legal crank drive currently available. Its design is so simple against the complexity of the Bosch system,which questions whether that system is overdesigned as it works so well in practice,which others will have the opportunity to check at Redbridge.
Shemozzle....by the interest that Woosh and Kudos have in this product its 'not a case of whether it has a market',its whether this small motor manufacturer can satisfy the demand.
KudosDave