Pedelec torque sensor signal processing algorithm

A technology of sensor signals and torque sensors, applied in the field of signal processing algorithms of torque sensors, can solve problems such as torque fluctuations, affecting riding comfort, and sudden changes in motor driving force, to achieve stable balance and comfortable riding Experience, responsive effect

Active Publication Date: 2017-02-15
NANJING LISHUI ELECTRONICS RES INSITITUE CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] It can be seen that if the output torque of the motor is directly proportional to the pedal torque signal, it will cause large fluctuations in the torque of two cycles within one circle, resulting in the sudden increase and decrease of the driving force of the motor, and the vehicle will rush forward. Once released, this will seriously affect the comfort of riding

Method used

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  • Pedelec torque sensor signal processing algorithm
  • Pedelec torque sensor signal processing algorithm
  • Pedelec torque sensor signal processing algorithm

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Embodiment Construction

[0034] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0035] Such as image 3 As shown, an electric bicycle torque sensor signal processing algorithm includes the following steps:

[0036] (1) Moment zero point T 0 Self-calibration;

[0037] Manufacturers of torque sensors generally indicate the zero point range of the torque signal on the product manual, but due to various reasons, such as installation process, temperature drift, etc., the consistency of the products actually installed on the vehicle is not very good, nor is it strict. Conforms to product description. At this time, the controller needs to re-calibrate the zero point voltage of the torque sensor. Generally, the user is required to keep the pedals on both sides free and without external pressure when the power is turned on. sample, and calculate the statistical mean if In the range of torque zero point calibrated by the man...

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Abstract

The invention discloses a pedelec torque sensor signal processing algorithm comprising the following steps that (1) torque zero point self-calibration is performed; (2) restoration of pedal torque voltage is performed; (3) pedal frequency signals are extracted; and (4) the processed torque signals are obtained. According to the algorithm, the voltage signals of pedal torque sensors are processed, and a motor is driven by the processed torque voltage signals so that the balance of the stability and the reaction speed of the vehicle can be realized.

Description

technical field [0001] The invention belongs to the field of sensor signal processing, and in particular relates to a signal processing algorithm of a torque sensor. Background technique [0002] With the improvement of people's living standards in recent years, electric mopeds (Pedelec) are not just a means of transportation, but are used by more and more people as sports equipment for leisure and fitness. As an electric bicycle for leisure and fitness, it must have good riding comfort and appropriate physical exercise effect. Therefore, at present, high-end electric bicycles at home and abroad are equipped with a torque sensor (Torque Sensor). The output power of the motor is determined according to the strength of the rider's pedaling. In general, the greater the pedal force, the faster the rider needs to drive. At this time, the output power of the motor should be increased accordingly, so as not to make the rider pay too much energy consumption. Conversely, the smalle...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/00
CPCG01L3/00
Inventor 缪鹏程徐小康
Owner NANJING LISHUI ELECTRONICS RES INSITITUE CO LTD
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