Undergraduate Student Projects

Every year, e-TESC Lab proposes and supports projects for undergraduates students.

e-Spyder (2019 – …)

UmUS (2020)

UmUS team designed and built an axial flux synchronous motor for e-TESC Spyder front wheel.
In an effort to accelerate the electrification of electric vehicles, automobile manufacturers are always on the lookout for optimization and improvement of their range. The vehicle chosen is a BRP Can-Am Spyder undergoing for electrification at e-TESC Lab. The required motor must be able to integrate into the front wheels of the vehicle in order to take full advantage of the weight transfer during braking and optimize energy storage.
In order to come up with a small and efficient motor to be implemented inside a front wheel of Spyder, which has a core of only 14”, the motor should be very small, both in width and depth. The team did research and came to the conclusion that the axial flow motor, a motor relatively little used in industry today due to its construction difficult to reproduce and thus its high price to manufacture, would be the motor with the efficiency, torque and speed range very suitable for the situation.
The axial flow motor is only manufactured by a few specialist manufacturers, including EMRAX and Magnax. These motors are very expensive, have never been integrated into a Spyder wheel, and must be custom built for this application. Thus, the UmUS project proposed to design and manufacture it with a much lower budget. So, in 12 months of work, the UmUS team had to design an axial flow motor capable of fitting into the front wheels of a Spyder, while still being able to maximize performance. energy regeneration during vehicle braking.

ChargUS (2020)

ChargUS team designed and built an axial flux synchronous motor for e-TESC Spyder front wheel.

The project works in the field of electric vehicle (EV) batteries. The field of transport electrification is booming. Several markets are beginning their transition to full electrification, although several factors are limiting their growth.
Several questions remain unanswered regarding the future of EVs and their integration into the electricity grid. The project aims to answer some of these questions in the specific case of an electric Spyder. It is possible to separate the project into three distinct parts:
• The impact of fast charging on aging batteries;
• The impact of an electric vehicle fleet on the network;
• The profitability of reselling the energy stored by the batteries.
From these three sections, it is clear that the results of the project have the potential to be useful both for electric vehicle owners and for planning future power grids. In order to satisfy these two parties, it will be imperative to offer solutions to optimize the lifespan and profitability of the batteries while facilitating their integration into an electricity network that is already very busy at peak times.

TractuS (2020)

TractuS team designed a hybrid energy storage system for the  e-TESC Spyder.

LitUS (2019)

LitUS team designed a hybrid energy storage system for the  e-TESC Spyder.

Electric vehicles in Quebec have the advantage of emitting much less GHGs than elsewhere in North America thanks to the way electricity is produced: by hydroelectricity.
LitUS team designed a hybrid energy storage system for an electric Spyder. This recreational vehicle will be used at the e-TESC laboratory and is intended to be a testing platform of several technologies developed at the University of Sherbrooke. The particularity of the energy storage system: a passive coupling between two components having different characteristics.
LitUS team designed an energy storage system that utilizes both the advantages of lithium-ion cells and supercapacitors.
Our first motivation to add a technology such as supercapacitors to an already widely used technology, lithium-ion cells, was intended to tackle a poorly documented problem: the life of a battery as a function of load variations. The automotive industry is already looking at the possibilities of the supercapacitor, for example for the starter of certain models of Lamborghinis (Maxwell Technologies inc., 2019).

OneratUS (2019)

OneratUS team has simulated bi-directional charger for EVs

The OneratUS project will provide a battery charger for the electric Spyder. The latter will therefore be designed in its entirety with a view to respecting market load standards. The OneratUS team creates the vehicle charger and the interface between the battery and the level 2 charging station. The charger will be able to charge in addition to a traditional battery, a special battery with super-capacitor currently in design. An intelligent controller will make it possible to manage battery charging in real time and will also be able to interface with consumption of the Hydro-Quebec network during peak periods. Finally, the implementation of a bidirectional topology would allow the energy stored in the battery to be fed into the network. This function is implemented with the expectation that Hydro-Quebec may soon include this information in the lines of its network.
Currently, the market trends are converters based on IGBT transistors and recently based on power mosfets. These technologies are robust and allow a good compromise between power and switching frequency. For an electric vehicle charger that can be plugged into a level 2 terminal, the powers are typically 6.6kW, the same power as the OneratUS charger foresees in its design.

EMUS (2013 – …)

EMUS (Electric Motorcycle of Université de Sherbrooke) is a technical group in which engineering students work on the design and manufacture of an electric competition motorcycle.

Found in 2013, the team has design two prototypes over the years to compete in international competitions . In 2016 and 2017, the team win the eMotoRacing Varsity at the new jersey motorsports park in USA with the first prototype EMUS56.
In 2018, the team participate to the Motostudent competition at Motorland Aragon, Spain.

The team is actually working on a third prototype to return at the next Motostudent Challenge

Motostudent 2018 – Spain

Hertz (2018)

Design and manufacturing o prototype of an electrical SAE formula by mechanical, electrical, and computer engineering students.

Team Hertz-Traction is a subdivision of Team Hertz. The main goal of the Hertz team is to participate in the international Formula SAE Electric competition. To compete, you have to design a single-seater vehicle and complete the various events with it.
The mission of the Hertz-Traction team is to design, manufacture and integrate a powertrain for an SAE formula type vehicle. The Hertz-Traction team is responsible for producing four systems to succeed in this mission: motors, inverters, battery and harness.
While respecting the technical constraints of the competition, the powertrain must be as efficient as possible in order to allow the Hertz team to aspire to win first place.

Hesu Eco Drive Platform (2018)

The development of technologies surrounding electric vehicles has diversified in recent years in order to improve performance, such as, range mileage (less energy consumption for the same route), and the significant economic and ecological impacts caused by the premature degradation of the batteries, in order to reduce electric vehicle cost (dominated by battery price). The idea is to adapt an off-road vehicle (Can-Am BRP electric Commander test platform), to answer the two challenges listed above. On the one hand, bad driving habits are responsible up to 40% of energy consumption. The proposed solution is to reduce these losses by adding an eco-driving mode function. On the other hand, the high energy demands during vehicle acceleration cause large variations in current which shorten the battery life. The goal is to reduce these variations in current and therefore increase the life of the batteries using hybrid energy storage unit. Therefore, the first defined objectives for this project are: i) Eco-driving mode (Eco Drive) to observe an improvement to at least 10% of energy savings; ii) Hybrid Energy Storage Unit (HESU): demonstrate a reduction in battery degradation by decreasing battery current RMS value; on real-drive and simulations of the vehicle.

R. Gonzalez-Rubio, A. Khoumsi and J. P. Trovao, “Project-Based Learning in Engineering: Illustration by a Capstone Project of an Electric Vehicle,” 2019 IEEE Vehicle Power and Propulsion Conference (VPPC), Hanoi, Vietnam, 2019, pp. 1-7. doi: 10.1109/VPPC46532.2019.8952566

E-Volve (2013)

E-Volve is an electric vehicle with low electric consumption created by a group of students at the end of a bachelor’s degree in mechanical, electrical and computer engineering.

The E-Volve Project aims to design, manufacture, assemble and test an urban car, single-seater, electrically propelled and won the Shell Eco-Marathon competition, UrbanConcept component, in March 2014. The students combined their skills to make a product powerful, exciting and innovative. The heart of the project: a tailor-made engine, bodywork and chassis. All these components were designed and implemented by the team of 22 students in mechanical, electrical and computer engineering.

M. R. Dubois and J. P. Trovao, “Motor Drive with Halbach Permanent Magnet Array for Urban Electric Vehicle Concept,” 2015 IEEE Vehicle Power and Propulsion Conference (VPPC), Montreal, QC, 2015, pp. 1-6. doi: 10.1109/VPPC.2015.7352979