Here the latest news of our project will be presented:
Our motorcycle is currently on display at the focus-rollout. When: 14 September - 31 October 2020 Where: LEE building, E floor, Leonhardstrasse 21, 8092 Zurich Click here for more information: D-MAVT Focus-Rollout
An interessing article written by Sintratec about our project and how they supported us in it: Shaping the future of mobility with 3D printing
Our electric motorcycle will soon be finished. Stay tuned!
We have written an article for the CADFEM Journal 1/2020, which can be found here: PDF (german)
We want to create a radical change in today´s urban and suburban mobility. The solution: ethec city! Today´s electric motorcycles suffer from their short range. By recovering the braking power with the help of recuperation, it is possible for us to reach further distances with a smaller battery. User experience and performance remain in the foreground, because everyone should want to drive ethec city. "a sustainable and efficient solution for everyday mobility" - ethec team
The focus projects at ETH Zurich give students a unique opportunity to experience the complete development of a product. From the first draft to the technical engineering, design, production and marketing, the students manage the whole process alone. The required knowledge and the necessary skills are acquired through self-study, lectures and, most importantly, the dialogue with experts from the industry, student advisors and professors. The ethec team is made up of 7 mechanical and 3 electrical engineering students from ETH Zurich and 5 industrial design students from the FHNW.
A good motorcycle experience includes riding comfort, ergonomics and last but not least the design. With a stable frame construction and a well adjusted chassis, our mechanics team ensures a quiet and safe ride. For this purpose we analyse the forces acting while driving and design our components accordingly. In close cooperation with a team of designers, we adapt the geometry of the motorcycle for good ergonomics and an attractive appearance.
As battery-team we are responsible for the range and supply of the entire electronics on board. We develop a fast charging, powerful battery with a long lifespan. By using a passive oil cooling system, we ensure that the battery cells never exceed the optimum temperature, even in the harshest conditions. In contrast to ethec alpha, we quadruple the voltage so that fast charging and lighter motors come into play.
In the control team, we take care of everything that happens in the background. In order to have all processes firmly under control, we at ethec city rely on real-time systems. This technology allows us to ensure maximum safety for the driver and his environment by constantly monitoring the vehicle. Furthermore the driving dynamics and the driving behavior are optimized with the help of selected sensors in interaction with our software and control to the highest degree, so that we can guarantee customer satisfaction.
Our module includes the motors, the ESC as well as the entire wiring and electronic components. Efficiency, weight and performance are our top priorities. With a new concept with two wheel hub motors, we can guaranee better driving dynamics and unprecedented ranges through recuperation. To achieve this, we develop our motors and ESCs ourselves. For the ethec city project, high goals were set.
With our project we want to pursue a concrete design strategy: The technical innovations should be reflected in their own aesthetics and at the same time quote the predecessor project ethec alpha. To this end, a student project was initiated at the University of Applied Sciences Northwestern Switzerland (FHNW), in which a design spectrum was presented and then with a collective decision a direction for the project was chosen. Under the direction of Lutz Gebhardt and the supervision of Johannes Hammers, the Industrial Design students pursued three concepts in three teams and converted their visions into scale models. Here, the riding position, but also the creative character development, played a decisive role. These main characteristics are responsible for perceived a motorcycle as sporty or comfortable, agile or well-tolerated, classical or futuristic. The following working pictures show the concept that best fitted our ideas. With the status of the models the project was handed over to our design team, which implemented it without losing sight of the students' basic concept.
Electronics & Motors:
Mechanics, Design & Packaging:
technical lead, admission
module lead, battery case, battery cooling
battery case, cellarchitecture
module lead, chassis, break
strength analysis, lighting, operation, display
packaging, frame, fairing
module lead, ESC
module lead, software & control
software & control
designer, design engineer