The heart of an e-bike's pedal assist system: how the pedaling frequency and torque sensors work

by love senada lovesena

Among the many features of e-bikes, Pedal Assist System (PAS) is undoubtedly the most attractive one. So, how does the Pedal Assist System of an 1000w ebike work? Today, we will analyze it in depth.

First, how the pedal assist system of e-bike works

The pedal assist system is an important part of the electric fat bike 1000w, which detects the rider's pedal movement through sensors, and then regulates the output power of the motor through the controller, so as to provide the appropriate auxiliary force. This system can make riding easier, especially when riding uphill or over long distances.

The two most important parts in the pedal assist system of an electric fat tire bike are the pedal frequency sensor and the torque sensor.

Pedal Frequency Sensor

The pedaling frequency sensor is a device used to detect the rider's pedal movement. It senses the rotation speed of the pedal and then transmits this information to the controller. Based on this information, the controller adjusts the output power of the motor to provide the rider with the appropriate assisting force.

Third, torque sensor

The torque sensor is a device used to detect how hard the rider is pedaling. It senses the torque of the pedal and then transmits this information to the controller. Based on this information, the controller adjusts the output power of the motor to provide the rider with the appropriate assisting force.

Comparison of pedaling frequency and torque sensors

The pedaling frequency sensor and the torque sensor are both important components of the pedal assist system of an electric bicycle, but their working principles and effects are different.

The pedaling frequency sensor mainly regulates the output power of the motor by detecting the rotation speed of the pedals, so it has a faster response speed, but it is not sensitive to the rider's pedaling strength.

The torque sensor, on the other hand, regulates the output power of the motor by detecting the torque of the pedals, so it is very sensitive to how hard the rider pedals, and can provide a more precise assist force. However, the torque sensor has a relatively slow response time.

Overall, the pedaling frequency sensor and the torque sensor have their own advantages and disadvantages, and the specific choice of sensor needs to be decided according to the specific needs and habits of the rider.