Products / Technologies

The innotorq 'Natural Drive' experience

The innovative innotorq technologies stand for a new drive train intelligence. They allow motor and eBike manufacturers to inject 'Natural Drive' into their products and bicycles: Power and Dynamics of an eBike combined with the elegance of a classic bicycle and the acquired riding experience. From the very first moment of pedaling. The drive intelligence of the 'Natural Drive' experience builds on

the worldwide patented sensor for unique, accurate and real-time metering of pedaling power for pedelec motor control
the smallest and lightest pedelec drive train for the rear wheel, consisting of sensor, motor, controller and display unit
the integrated battery providing the pedelec with power for a perfect drive experience.

To us 'Natural Drive' means: A pedelec that rides like a classic bicycle - but with controlled, attached tail wind. The biker focusses on bicycling, while we take care of propulsion and uphill pushing.

the innotorq sensor › the innotorq drive train system ›

the innotorq sensor

The only real-time pedaling force sensor in market

Integrated into the rear freewheel system, the innotorq sensor is the only sensor system that measures pedaling force electromagnetically in real-time directly within the power flow of the propulsion axle. This allows for very accurate power metering, and an immediate reaction to any change in pedaling force enables the perfect control of any pedelec rear wheel motor. The innotorq sensor is the most accurate in the market and is at the core of the outstanding performance of innotorq's drive train systems. As it meters electronically and contactless, it is wear-free, maintenance- free and very reliable.

Magnetolastic measurement in permanent operation

Current mechanical pedaling power metering systems work indirectly, thus being complex, expensive, not very accurate and requiring permanent re-calibrating. The innotorq sensor obtains its power data by utilizing the magnetolastic principle. It measures the change of electromagnetic fields stemming from the pedaling force influence to the sensor. This allows for linear, repeatable and accurate metering. Free of wear, even in extreme conditions and ongoing. innotorq has patented this technology for the rear wheel, and is the only supplier which offers it for pedelec rear wheel motors.

Technical specifications

torque range:

0 to 100 Nm

temperature range:

-20 to 100 °C

output signal at 0 Nm:

0.5 V

sensor signal rise:

40 mV/Nm, Tolerance +/- 0.4 mV/Nm

supply current range:

6 - 16 V

nominal power consumption:

< 0.4 W

the innotorq drive train system

With the sensor at the core, the innotorq drive train system translates biker pedaling force into a well-dosed propulsion - almost unnoticable and with the riding experience of a classic bicycle: Natural Drive! With a power and performance range that lives up to any other drive train, whether for cruising with a few Watts of support or up to 500 Watts for climbing slopes.

The drive train system consists of the following, well-synchronized components:

the patented innotorq sensor, which provides the information for controlling the drive train
the lightest (1.9 kg) and smallest motor in its performance class in the market, just slightly larger than a regular wheel hub.
the high performance controller, which is responible for the optimal response characteristics of the motor and the right motor support in all drive situations.
a multifunctional designer display as interface to the biker, to always control the 'Natural Drive' drive experience - from Eco up to High Power.
customizable lithium-ion battery packs with variable performance characteristics.