Influence of Electrically Powered Pedal Assistance on User-Induced Cycling Loads and Muscle Activity during Cycling

Dieltiens, Sien; Jiménez-Peña, Carlos; Loon, Senne Van; D’hondt, Jordi; Claeys, Kurt; Demeester, Eric

doi:10.3390/app11052032

Cited by 2 publications

(2 citation statements)

References 33 publications

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“…The tangential forces of the pedals are added up to the total tangential force exerted on the mechanical drive. The data from the measurement bicycle were obtained from Dieltiens et al [40]. Dieltiens et al used the data to analyse differences in cycling with and without assistance.…”

Section: Measurement Bicyclementioning

confidence: 99%

Pedalling Comfort of a Custom Pedal Series Hybrid Drivetrain in a Cargo E-Tricycle

D’hondt

Slaets

Demeester

et al. 2022

Engineering Science & Technology

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A Pedal Series Hybrid Drivetrain (PSHD) uses an electrical power transmission rather than a chain, belt, or shaft. It creates exciting opportunities for the vehicle's design, but pedalling does not always feel comfortable. This study evaluates the pedalling comfort of a custom PSHD in an electric cargo tricycle. In this PSHD, pedal-drive generator converts human mechanical power to electrical power that is used by two hub motors to propel the vehicle. The pedal-driven generator is mechanically decoupled from the propulsion of the vehicle. Therefore, natural pedalling is replicated using a custom programmable controller for the mechanical resistance of the generator. Test subjects reported a very comfortable pedalling feeling, however slightly different from the feeling of a traditional e-bike. They failed to explain the differences in more detail. Further measurements show that the pedal generator of the PSHD has the same power cycle as the pedals in a traditional e-bike, but the pedal generator has a greater variation in the instantaneous angular velocity.

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Section: Measurement Bicyclementioning

confidence: 99%

Pedalling Comfort of a Custom Pedal Series Hybrid Drivetrain in a Cargo E-Tricycle

D’hondt

Slaets

Demeester

et al. 2022

Engineering Science & Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Hsiao et al [8] proposed a method to measure the comfort of bicycles, and the research results could help consumers of different heights to choose a suitable bicycle. Besides, several researchers have studied the effects of the pedals [9], frame [10], and cranks [11] on the functional attributes of bicycles through experimental tests.…”

Section: Introductionmentioning

confidence: 99%

Research on the Influence of Wheelsets on the Visual Imagery of City Bicycles

Lin

2022

Sustainability

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City bicycles have become popular worldwide because they play an essential role in releasing urban traffic congestion and are environmentally friendly. Since wheelsets are the most prominent shape element in a bicycle, this research explores the influence of various wheel types on the visual image of a city bicycle. First, 10 wheelsets with a high market share in China were selected as the research samples. Meanwhile, vocabularies suitable for describing wheelsets were chosen from many vocabularies. Then, all vocabularies were summarized into six adjectives using factor analysis, and consumers were invited to evaluate all samples using the grouped adjectives. Finally, triangular fuzzy numbers were used to obtain the evaluation scores of 10 wheelsets on six adjectives, and the 10 wheelsets were divided into four groups based on the evaluation scores. The results show that the visual imagery evaluation of the 10 wheelsets had a significant difference in the “trimmed and stable”, “superior and presentable”, and “holistic and balanced” groups, but a slight difference in “novel and individualized”, “rhythmic and metrical”, and “mechanical and ordered.” The research results could serve as a reference for city bicycle operators and help improve product development efficiency, thereby promoting the sustainable development of city bicycles.

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Influence of Electrically Powered Pedal Assistance on User-Induced Cycling Loads and Muscle Activity during Cycling

Cited by 2 publications

References 33 publications

Pedalling Comfort of a Custom Pedal Series Hybrid Drivetrain in a Cargo E-Tricycle

Pedalling Comfort of a Custom Pedal Series Hybrid Drivetrain in a Cargo E-Tricycle

Research on the Influence of Wheelsets on the Visual Imagery of City Bicycles

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