With the increasing popularity and growing trend of e-bikes, bicycle system suppliers have set goals to optimize power and performance of their drive systems. In order to support the driver in the best possible way, sensors are needed to deliver the required data and therefore adapt the engine’s power support. An essential component is the ZF e-bike sensor for measuring the current speed. The ZF e-bike sensor is based on Hall technology with significant advantages over conventional reed switches.
Speed sensors of the GS series have been specially developed for use in Pedelecs and S-Pedelecs. The sensors are based on the principle of Hall-effect and therefore they are non-contact and durable. In combination with ferromagnetic target wheels, a high-resolution speed measurement with over 50 pulses per revolution can be implemented without any problems. In practice, this leads to a finer and quicker response from the e-bike drive – especially at lower speeds (e.g. when starting up a hill). The differential measurement of the magnetic flux also increases the robustness of the sensor against vibrations. In addition, there is no need for an external magnet, which is used with conventional reed switches.E-Bike Sensor – ZF Switches USA