Experimental verification of torque sensorless control for electric power-assisted bicycles on sloped environment

Many commercial electric power-assisted bicycles must be equipped an expensive torque sensor to measure the pedaling torque of the user. If it is possible to measure the pedaling torque without such an expensive torque sensor, the cost of these bicycles will be reduced. In this paper, a method for e...

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Bibliographic Details
Published in2018 IEEE 15th International Workshop on Advanced Motion Control (AMC) pp. 66 - 71
Main Authors Fukushima, Norihito, Fujimoto, Yasutaka
Format Conference Proceeding
LanguageEnglish
Published IEEE 04.06.2018
Subjects
Bicycles
Brushless DC motors
disturbance observer
electric power-assisted bicycle
Mathematical model
multiple forgetting factors
Recursive least square method
Torque
Wheels
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Summary:Many commercial electric power-assisted bicycles must be equipped an expensive torque sensor to measure the pedaling torque of the user. If it is possible to measure the pedaling torque without such an expensive torque sensor, the cost of these bicycles will be reduced. In this paper, a method for estimating the pedaling torque that is applied in a sloped environment is proposed. To increase the estimation accuracy, the parameter identification of the motor is presented. The validity of the proposed method is shown thorough experiments with motor assistance on a sloped environment.
ISSN:1943-6580
DOI:10.1109/AMC.2019.8371064