The AESCU-BIKE project is a cargo bike which has an inbuilt off-grid photovoltaic and a monitoring system. The off-grid photovoltaic system consists of a PV module, a lithium-ion battery, a lead acid battery, a charge controller and an electrical fridge. The PV module produces electrical energy which is used to cover the demand of an electrical fridge to supply enough cooling to store and transport pharmaceutical at temperature ranges between 0 °C and 8 °C within the city of Ulm. The monitoring system acquires, saves and plot information regarding the performance of the AESCU-BIKE such as voltages, currents, irradiance, temperatures, location and speed.  The first aim is to theoretically estimate the performance of the off-grid photovoltaic system during summertime and verify that the off-grid photovoltaics system components match. The second aim is to experimentally verify the theoretical estimation of the off-grid photovoltaic system performance during summertime by designing and implementing a monitoring system. The third aim is to visualize in real time information regarding the performance of the AESCU-BIKE. This information is used for an instant analysis of both transportation quality and correct functionality of the off-grid photovoltaic system. A user interface is programmed by using the software Nodered which can be installed in any smart device such as a computer, a smartphone or a Raspberry Pi.  Three different tests are performed to experimentally verify the theorical estimation of the off-grid photovoltaic system performance during summertime. Information such as PV module electrical energy production, fridge electrical energy demand, fridge temperature, ambient temperature, location and speed are plotted and analyzed using the software Excel.  After the results analysis, it is concluded that the monitoring system provides essential information to validate theoretical estimations and to deeply understand the behavior of the off-grid photovoltaic system. Regarding the PV module electrical energy production, losses related to the lack of a MPPT, not optimal PV module inclination angle and shading effect are clearly understood. Regarding the fridge electrical power demand, it is shown that the energy demand is highly related with the ambient temperature. The user interface makes the entire system more friendly. The instant visualization of the measurements helps the user to relate the physical phenomena with the system behavior.

none

There has been a new style of new product development in the Bike Industry of Taiwan. The researcher refers it as ¡§Network-Styled of New Product Development (NNPD). According to the researcher¡¦s understanding, the Network-styled New Product Development is a product development model for which we need to measure its outputs or performances by all aspects of the industry instead of a single company or a single governing mechanism. Different types of firms on the industrial value chain and all external R&D's resources of the industry in Taiwan make a significant contribution to the development of new product. Therefore, firms are able to use an internal and interactive mechanism built among the firms to initiate more creations and to exchange technology of production. A high efficacy produced from the model is attributed to the efforts of all participating firms. Owing to fast and intensive interactions, a continuing and changing evolution of innovation happens, thus, leading to an unpredictable development of various products. This model of new product development, only constructed by the whole industry, is a unique competence of the Bike Industry of Taiwan, which has made it impossible for any other single firm or a conglomerate in other countries to emulate. Taiwan¡¦s Bike Industry then becomes even more competitive in the arena.

­^¤åºK­n The purpose of this work is to provide a design procedure of rear suspension mechanisms of mountain bikes by using the concept of engineering design method. First, the conditions and particularities of mountain biking are investigated and the performance specification of rear suspension mechanisms is set by focusing the investigations on the requirements of rear suspension mechanisms. Second, the requirements and constraints of generating different types of rear suspension mechanisms are developed and the systematic process of creative mechanism design is followed. Third, the different types of rear suspension mechanisms resulted from creative mechanism design are analyzed to realize the property of each type of rear suspension mechanisms and the procedure of kinematic design is developed by using the algorithm of heuristic combinatorial optimization method. Finally a computer aided design program written in Visual BASIC 6.0 programming language is developed to be the powerful tool of performance analysis and kinematic design of rear suspension mechanisms.

With the prevalence of leisure sport, riding mountain bikes becomes an enormous vogue today. The mountain bikes undoubtedly have become one of the most popular products in the leisure sport market. Based on its superior standard of operating quality and the demand of comfortableness, the requirement of the outstanding rear suspension mechanism of mountain bikes is one of the crucial components in the design procedure. The purpose of this work is to provide a design procedure of the system of rear suspension mechanisms of mountain bikes by using the concept of engineering design method. First, to investigate the essential requirements of the system of rear suspension mechanisms of mountain bikes is started. Then the design targets of this research are decided further in order to establish the requirement book for the system of rear suspension mechanisms of mountain bikes. Second, the kinematic design of rear suspension mechanisms is proceeding. Computer Aided Tried and Error program is utilized for synthesizing the dimensions of rear suspension mechanisms to meet the requirement of functions. Finally, topology theory is applied to synthesize the frames of mountain bikes. Furthermore, the systematic design procedure is developed to perform the embodiment design of the system of rear suspension mechanisms of mountain bikes.

In Taiwan, ¡§ networks for development of new products¡¨, a method normally used in the Bicycle's industry, which the method includes not only the efforts from internal personnel's participation in developing new products but also innovations obtained by mutually-contributed thinking with external sources. Due to this mutual ways of thinking is fast and concentrated, the final results of the new product are usually uncertain so that such unfavorable factors like unsatisfied production in the brand-marketed company, bicycle manufacturer, and part manufacturer, hoard of inventories, changes of design, changes of manufacturing process...etc directly influenced on the efficiency of the whole industry. However, the whole industry still position to be very competitive in the world. It is believed that with the installment of B- to- B e-commerce, those unfavorable factors might be reduced and the whole industry could be even more competitive. Also by this installment, the operation of the companies will dramatically changes, which the competition within the industry become much complicated and have direct impulses to the leading industry of bicycle manufacturing.

A group project has been made in which the goal was to build an electric bike. The main focus of the project was to build the surrounding control system of a BLDC motor. A complete BLDC hub motor was purchased. The wheel managed to spin forward but it was never implemented on a bike due to time constraints. This was a rewarding and educational project that can be replicated or improved for future students.

The aim of master thesis is the design of full suspension mountain bike frame for racing and competition use. The base of the design solution is selection optimal conception of suspension which influence external design of the frame. General benefit of this concept is utilizing specific properties of carbon composite for design of funkcional frame parts and their technical and visual integration. Important part of this work is design of frame details: rear ends, rear shox's link and duct of the bowdens, wires and brake hydraulic housing.

Cycling, and micromobility tools like bike share, have increasingly been recognized for their health, economic and environmental benefits, and municipalities have recently made encouraging the use of these modes of urban transportation both a policy and a financial priority. Many studies, using varying methods, have identified and confirmed an association between an increased presence and connectivity of cycling infrastructure (bike lanes, cycle tracks, etc.) and cycling or bike share ridership. Determining a more explicit causal link between infrastructure and ridership, however, often proves challenging to researchers, due to data limitations and a variety of simultaneous, exogenous, factors that abound within complex urban transportation systems. Given the financial impacts of capital investment in infrastructure, more closely establishing this causal link, and identifying infrastructure’s ability to generate cycling and bike share traffic, is of growing importance to municipal governments and taxpayers. Using Hamilton Bike Share (HBS) trip logs and GPS trajectories occurring between January, 2019 and August, 2022 (n = 741,369 and 609,746, respectively), this thesis constructs individual shapefiles of each HBS trip for GIS analysis through Dalumpines and Scott’s (2011) GIS-Based Map-Matching Algorithm. It investigates the impact of ten separated cycling infrastructure projects in Hamilton, constructed between 2019 and 2022, on HBS ridership along the respective intervention segments. The thesis also holistically analyzes the spatial and ridership impacts of one infrastructure intervention, the Victoria Avenue cycle track, on the distribution of riders using the segment of interest, a more precise classification of post-intervention trip natures (‘induced’ or ‘diverted’) using a novel categorization process, and maps the impact of the iv segment on trip diversion to use the cycle track. Results indicate that five of the ten interventions have had significant, positive, impacts on monthly HBS ridership along their respective segments, with others having nearly statistically significant results as well. Moreover, the Victoria Avenue cycle track lessened the cost of distance associated with using Victoria Avenue, and 46.9% of trips along the cycle track post-intervention, were determined to be ‘induced’ trips. Finally, of the streets in the Victoria Avenue cycle track’s neighborhood, the cycle track segments were the only segments to experience ridership increases post-intervention, which indicates a significant level of trip diversion and funneling of trips to use the cycle track. These results enhance findings from the literature and more concretely quantify the direct impacts of infrastructure investments. Investments in infrastructure appear to make a significant difference in increasing ridership and serve to benefit more than just existing riders. This thesis can have an important impact on municipal active transportation planning, policy, and financing, through its results and by providing a methodological foundation for future research into infrastructure’s impacts on a variety of users. / Thesis / Master of Science (MSc)

No description available.