E-Bike Sensor from ZF measures riding speed
16 July 2019
e-bike road marking
As e-bikes steadily become a more commonplace form of transport on our roads, growing sales figures & increasing market share highlight their importance within the cycling industry.
E-Bike manufacturers are continually launching new innovations and technical advancements, such as German electronics manufacturer, TQ-Systems, who have initiated and established the market sector for e-mobility and premium class E-Bikes. TQ has technically revolutionised the market with its TQ HPR120S-Motor. An important component is the E-Bike sensor from ZF, used for the measurement of current riding speed.
For premium E-Bikes, all components must be qualitatively and functionally at their finest, from the drive to the battery and wiring. This is also valid for the speed sensor from ZF, that in the TQ application delivers 18 pulses per rotation with 18-fold coding. This results in a much higher resolution than with standard sensors, which in practice leads to a finer, more direct appeal of the E-Bike drive – especially at lower speed (for instance, for hill starts). The speed sensor mounted on the back wheel provides the system with precise information on the current speed. In combination with a torque sensor, it enables a better alignment of the overall system. In addition, the ZF sensor is tamper-resistant and always submits precise results.
The E-Bike sensor is developed based on Hall technology, and allows the customer to decide if the sensor should have a connector or a cable. The sensors need a continuous power supply of 4.5 – 20 VDC and measure frequencies between 1 and 2,500 Hz. They are designed for a temperature range from -20°C to +100°C and fulfill the requirements of IP67.
ZF E-Bike Sensor_580x280
Originally, the ZF sensor has been developed for ABS applications. In addition to E-bikes, E-scooters are also a typical target market for the small and efficient sensor.
For further information on ZF’s sensor portfolio, please click here: switches-sensors.zf.com/sensors/
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