The HPR technology
MAXIMUM PRECISION. MINIMUM COMPLEXITY. THE HARMONIC PIN-RING TECHNOLOGY
The Harmonic Pin Ring Gear (TQ-HPR) is based on a completely new, exceptionally simple but technically sophisticated design.
HOW AN E-DRIVE WORKS
Power is transferred to the bottom bracket when pedaling. Sensors record the torque and cadence. A control unit processes these signals and regulates the motor power accordingly. A gearbox transmits the motor's assistance to the chainring in synchronization with the pedalling movement.
High gear ratios are required to generate a lot of power from little power.
Conventional drive systems achieve this through the use of numerous gears, in which only a few teeth are engaged at any one time.
This leads to a complex structure in which several gears have to work in parallel to achieve the desired transmission ratio. The many individual components take up a lot of space and often account for up to 50% of the total size of the drive.
REVOLUTIONARILY SIMPLE, TECHNOLOGICALLY SUPERIOR: THE HARMONIC PIN-RING GEARBOX
TQ's Harmonic Pin-Ring Gearbox (TQ-HPR) is a much simpler and unprecedented solution.
At its heart is a double tooth ring in which many teeth engage simultaneously. The tooth shape is chosen to be precisely matched and to achieve maximum surface pressure.
This means that a lot of force can be transferred to just a few parts. No loss of power, much less installation space, much fewer parts.
Due to the direct power transmission of the gearbox, the motor can operate at a much lower speed. This leads to a reduction in noise and less wear.
The direct and loss-free power transmission also ensures that the response behavior can be controlled much more sensitively. In combination with the sensors and electronics, the motor assistance can be adapted precisely, without delay and continuously to the riding behavior - resulting in a natural and harmonious riding experience.
SUCH A SIMPLE IDEA. SUCH A COMPLEX EXECUTION.
The principle is simple - the implementation is technologically highly demanding.
Only with excellent know-how in electronics, mechanics and software can a product of this precision be realized.
TQ can do that. With decades of experience in aerospace, robotics and medical technology, we are one of the world's leading specialists in precision technology.
