Search and rescue vehiclesSearch and Rescue vehicles

The rescue personal watercraft has been specially adapted for interventions in environments that conventional boats cannot reach. The Hypalon inflatable sponsons provide outstanding flotation and stability. Hull protection and modifications to the engine's cooling system allows the craft to navigate in rough, shallow water. Modifications to the jet pump make it more resistant to debris intake in shallow waters. The built-in stretcher is used to pick up victims using methods developed for rescuing surfers. CTA developed this vehicle in partnership with the City of Chambly, which provided its know-how in the area of water rescue. The Sea-Doo personal watercraft delivers exceptional handling capability and has the exclusive ability to brake on water. Combining these characteristics with the modifications done by the CTA produced the ideal rescue craft. 

The rescue personal watercraft won the prestigious red dot design award as well as the Award of Excellence for Innovation from the National Search and Rescue Program of Canada.

Law enforcement vehiclesLaw Enforcement vehicles

Three all terrain vehicles were developed by the CTA to respond to the specific needs of law enforcement agencies. These vehicles are equipped with emergency lighting, an audible warning device and a matte black color scheme.  Integrating the law enforcement equipment on Can-Am off-road vehicles will allow law enforcement agencies to patrol places far off the beaten path. 


Can-Am Spyder police unitCan-Am Spyder police unit

The CTA developed the Can-Am Spyder F3-P based on the F3 model, which features a cruising riding position and a lower centre of gravity, making it the most nimble Spyder yet. Along with its unique Y-frame configuration and array of sophisticated safety and security systems, the Spyder F3-P adds a layer of convenience with its police accessories such as a siren, LED emergency lights and increased cargo capacity, wired with 12V and USB connectors. Officers can also customize their bike’s fit for their size, stature and riding style with the F3 model’s industry-exclusive UFIT system of adjustable foot peg positions and alternative handlebars.

Hybrid SpyderHybrid Spyder

The plug-in hybrid roadster equipped with a 600 cc internal-combustion engine paired with an electric motor with a continuous output of 20 kW. In addition to developing the vehicle's power train and control module, CTA developed a unique lithium-ion battery assembly that provides as much power as the Spyder 990 RS. The hybrid system significantly reduces greenhouse gas emissions and fuel consumption, giving the vehicle an increased range.

Mars and Lunar Exploration VehiclesMars and Lunar Exploration VehiclesMars and Lunar Exploration Vehicles

CTA received a commission to design the chassis and locomotion systems for light rovers to explore the Moon and Mars. The $5.6 million contract was subcontracted by McDonald Dettwiler and Associates (MDA), which had received two contracts from the Canadian Space Agency to build and test advanced space vehicles under the Agency's Exploration-Surface-Mobility program. The terrestrial prototypes of these rovers were designed using advanced aluminum alloys and equipped with a battery-powered electrical propulsion system and, in the case of the Mars rover, a solar-energy propulsion system. They also include hydrogen fuel cells. 


An improved version of the VPD vehicle to be used as a technology validation platform for lunar rovers. The SL-Commander is based on the chassis for BRP's side-by-side vehicle. It has, however, a 100% electrical power train, completely developed by CTA and including a quiet helical gearbox. The control module developed by CTA and the use of lithium-ion batteries give the vehicle a top speed of 40 km/h and a range of more than 160 km. The vehicle can be remotely controlled or operated manually. This vehicle's technological advancements meet the stringent Canadian Space Agency's requirements, thus allowing CTA to position itself as the Canadian leader in the development of specialized vehicles.


The vehicle developed for MacDonald, Dettwiler and Associates (MDA) is a technology validation platform for lunar rovers. The vehicle is 100% electrical and equipped with lithium batteries and solar panels, giving it an endurance of 1 hour and a maximum speed of 20 km/h. The navigation system can be remotely controlled or operated manually. Loading plates have been integrated into the vehicle to accommodate specialized equipment.

 Environmental technologies

Hybrid PowertrainHybrid Powertrain 

Project to develop a hybrid power train for BRP's new plug-in Spyder hybrid vehicle. The pairing of an electric motor and lithium-ion batteries with an internal-combustion engine made the vehicle 50% more fuel efficient and cut its polluting emissions by half.



Electric PowertrainElectric Powertrain 

Project to develop an entirely electric powertrain for BRP's side-by-side vehicle. The development of an electric powertrain and the integration of lithium-ion batteries enable the vehicle to operate silently and with no polluting emissions while providing extended range and reduced charging time.



Development of a battery pack for a hybrid vehicleDevelopment of a battery pack for a hybrid vehicle

This project was a component of the development of the Spyder hybrid and consisted of developing a high-voltage battery pack that could provide all the power required by the vehicle at all times. Optimizing the battery pack's electrical system made it possible to achieve the power required while keeping the volume within reasonable limits and meeting all of the targeted performance criteria.



Reducing the aerodynamic drag of a roadsterReducing the aerodynamic drag of a roadster

A study of the vehicle's exterior aerodynamics revealed drag-generating areas, which made it possible to optimize the geometry of the vehicle's body. These modifications reduced the vehicle's total aerodynamic drag by more than 22%, which considerably cuts fuel consumption.



Reduction of hydrodynamic dragReduction of hydrodynamic drag

The study of various geometric modifications made it possible to substantially reduce drag forces, thereby decreasing the energy needed for propulsion.




Propane internal-combustion enginePropane internal-combustion engine

Project to develop an internal-combustion engine fueled by propane. This type of engine achieves performance levels comparable to that of a gasoline engine while reducing drastically exhaust emissions and odors.



Hydrogen internal-combustion engineHydrogen internal-combustion engine

Project to develop an highly efficient internal-combustion engine fueled by hydrogen that would achieve the same performance levels as a similar gasoline engine while eliminating air pollutant emissions.




SE6 transmission for 1330 Spyder roadster engineSE6 transmission for 1330 Spyder roadster engine

The CTA played a key role in the first generations of the SE6 Spyder Roadster transmission.  The adaptive control logic, hydraulic system and sizing of components was conducted in Sherbrooke in partnership with BRP in Gunskirchen and Valcourt.



Intelligent front differentialIntelligent front differential

Project to design and develop entirely new differential technology. Integrating the differential and its electronic components into a vehicle's front-axle assembly allows the driver to select multiple modes. The differential reacts to a loss of traction and transmits torque to the wheel with the best ground traction while minimizing handlebar forces.



Hydraulic-assisted rubber-belt CVTHydraulic-assisted rubber-belt CVT

Project to develop and validate a hydraulic-assisted rubber-belt continuously variable transmission (CVT). This CVT provides complete calibration control while offering the driver the possibility of selecting different modes, which improves gasoline consumption and the engine's overall dynamic response.



Steel-belt advanced automatic transmissionSteel-belt advanced automatic transmission

Project to develop a compact completely automatic CVT with steel-belt drive. This CVT enables the internal-combustion engine to operate at peak efficiency, thereby significantly reducing fuel consumption. The advanced system provides greater user comfort by reducing judder and eliminating interruptions in torque transfer when changing gears. Adaptive control makes it possible to produce an advanced automatic transmission that is extremely robust throughout its lifetime.



Omnidirectional multi-jet propulsion system for watercraftOmnidirectional multi-jet propulsion system for watercraft

Project to develop and integrate an omnidirectional propulsion system controlled by a driver-actuated lever. The position and orientation of each of the jets have been optimized to yield an omnidirectional system that allows the craft to make fine movements in a crowded marina.



Helicoidal gearboxHelicoidal gearbox

Project to develop a helicoidal gearbox to transfer the power from the electric motor on the new Commander electric vehicles. After design and prototyping, testing was carried out in CTA facilities to validate noise level, optimal lubrication of gears and bearings, and compliance with durability requirements.




Test bench for a control-arm systemTest bench for a control-arm system

Development and construction of a unique test bench for a motorized control-arm system. The main objective of this test bench was to assess the various characteristics of gears and suspension geometries, steering efforts, traction, and dust projection. This project was carried out for MacDonald, Dettwiler and Associates Ltd. (MDA) and the Canadian Space Agency.



Adjustable skiAdjustable ski

The CTA explored the concept of an adjustable snowmobile ski to allow a rider to adapt the vehicle to different snow conditions.  The experiment was a success and the concept is now in production under the name Pilot TS.




LFI technologyLFI technology

Development of a fast injection-molding process for personal-watercraft hulls that reduces production time from 4 hours to 6 minutes per hull.



Adhesive-assembled chassisAdhesive-assembled chassis

Development and measurement of the impact of structural bonding on the performance of an aluminum chassis. This project made it possible to develop many skills with respect to finite-element analysis as well as in conducting mechanical, endurance, rigidity, impact, and static-strength tests.




Articles in Refereed Publications
Published or accepted

  • DENIS, N., DUBOIS, M. R., DUBÉ, R., DESROCHERS A., (Available on-line since November 2014), Blended power management strategy using pattern recognition for a plug-in hybrid electric vehicle, International Journal of ITS Research.
  • DENIS, N., DUBOIS, M. R., DESROCHERS A., (Final version awaiting publication as of December 2014), Fuzzy-based blended control for the energy management of a parallel plug-in hybrid electric vehicle, IET Intelligent Transport Systems.
  • DRIANT, T., FELLOUAH, H., MOREAU, S., DESROCHERS, A., REMAKI, L., 2013, Numerical Simulations and Wind Tunnel Measurements on a Tricycle Wheel sub-System Wheel, Int. J. Engineering Systems Modelling and Simulation, Vol. 5, Nos. 1/2/3.
  • IORGA, C., DESROCHERS, A., 2012, Generic product design & validation methodologies at the detailed design stage, European Scientific Journal (ESJ), Vol. 8, No. 28.

Other Refereed Contributions
Papers in refereed conference proceedings

  • TROVAO, J.P. DUBOIS, M.R., ROUX, M.A., MÉNARD, É., DESROCHERS, A., 2015, Battery and SuperCapacitor Hybridization for a Pure Electric Three-Wheel Roadster, IEEE VPPC 2015, Montreal, October 19-22.
  • THIAM, M.T., MOREAU, S., DESROCHERS, A., 2015, Simulation Numérique et Validation Expérimentale de l’Aérodynamique et la Thermique d’un Véhicule à Trois Roues, 22ème Congrès Français de Mécanique Lyon, August 24-28.
  • IORGA, C., DESROCHERS, A., 2014, The development of a roadster frame as a problem-based learning experience in design, Proceedings of the Canadian Engineering Education Association (CEEA) 5th Annual Conference, Canmore, Canada, June 8-11.
  • DENIS, N., DUBOIS, M. R., DESROCHERS A., 2013, An energy management system using trip information and fuzzy logic for a plug-in hybrid electric vehicle, Proceedings of the 20th ITS World Congress, Tokyo, Japan.
  • DENIS, N., DUBOIS, M. R., DUBÉ, R., DESROCHERS A., 2013, Power split strategy for a plug-in hybrid electric vehicle using driving pattern recognition and genetic algorithm, Proceedings of the 20th ITS World Congress, Tokyo, Japan.
  • IORGA, C., DESROCHERS, A., 2013, Design & Validation Methodology applied to a roadster frame based on life prediction, Proceedings of the Canadian Engineering Education Association (CEEA) 4th Annual Conference, Montréal, June 17-20.
  • NADEAU, J., DUBOIS M.R., DESROCHERS, A., DENIS, N., 2013, Ageing estimation of lithium-ion batteries applied to a three-wheel PHEV roadster, Proc. VPPC, Beijing, pp. 49-54.
  • DUBÉ, R., BOIVERT, M., DUBOIS M.R., DESROCHERS, A., 2013, Forecasting of an Electric Vehicle Residual Range Based on Drivers Maneuvers Identification, 13th Stuttgart Int. Symposium on Automotive & Engine Tech., Stuttgart, Germany, February 26-27.
  • MOGENOT, Y., TACHER, M., DESROCHERS, A., MASLOUHI, A., QUIRION, P., 2012, Weight saving methodology and application to an hybrid roadster, Conf. EV2012VÉ, Montréal, Canada, October 23-26.
  • DENIS, N., DUBOIS, M.R., GIL, K.A., DRIANT, T., DESROCHERS, A., 2012, Model development and performance estimation of a three-wheel plug-in hybrid electric vehicle, Conf. EV2012VÉ, Montréal, Canada, October 23-26.
  • NADEAU, J., DUBOIS, M.R., DESROCHERS, A., 2012, Identification of Lithium-Ion Battery Cell Degradation Applied on Plug-In Hybrid Electric Recreational Vehicles – Experiment and Modeling, Conf. EV2012VÉ, Montréal, Canada, October 23-26.
  • DUBÉ, R., DUBOIS, M.R., DENIS, N., DESROCHERS, A., 2012, Online Forecasting of an EV Residual Range Using advanced Mathematical Models, Conf. EV2012VÉ, Montréal, Canada, 23-26 October 23-26.
  • FOREST, S., MOREAU, S., DESROCHERS, A., 2012, 3D Unsteady Simulation of a Planning Hull Propelled by a Waterjet Pump System, ASME 2012 Fluids Engineering Division Summer Meeting, Puerto Rico, USA, July 8-12.
  • DRIANT, T., REMAKI, L., MOREAU, S., DESROCHERS, A., FELLOUAH, H., 2012, Aerodynamic Study of a Tricycle Wheel Sub-system for Drag Reduction, ASME 2012 Fluids Engineering Division Summer Meeting, Puerto Rico, USA, July 8-12.
  • DENIS, N., DUBOIS, M.R., GIL, K.A., DRIANT, T., DESROCHERS, A., 2012, Range Prediction for a Three-Wheel Plug-in Hybrid Electric Vehicle, IEEE Transportation Electrification Conférence ITEC, Dearborn, Michigan, USA, June 18-20.
  • IORGA, C., DESROCHERS, A., SMEESTERS, C., 2012, Engineering Design from a Safety Perspective, Proceedings of the Canadian Engineering Education Association (CEEA) 3rd Annual Conference, Winnipeg, Canada, June 17-20.
  • DRIANT, T., REMAKI, L., MOREAU, S., DESROCHERS, A., FELLOUAH, H., 2012, Numerical simulation and wind tunnel measurements on a tricycle wheel sub-system, 47th International Symposium of Applied Aerodynamics, Paris, France, March 26-28.
  • TACHER, M., DESROCHERS, A., MASLOUHI, A., 2011, Frame optimization of a Hybrid Spyder Roadster, 50th conference of metallurgists COM et World Gold, Montréal, October 1-5.
  • IORGA, C., DESROCHERS, A., 2011, Product Modeling, Evaluation and Validation at the Detailed Design Stage, Proceedings of the Canadian Engineering Education Association (CEEA) 2nd Annual Conference, Saint-John’s, Canada, June 6-8.
  • ELBAHRI, M., DESROCHERS, A., HADDAR, M., LOUATI, J., 2010, Management of Geometrical and Dimensional Uncertainties Between Subsets Using Interface Gauges (Templates), Fifth International Conference on Advances in Mechanical Engineering and Mechanics, ICAMEM 2010, Hammamet, Tunisia, December 18-20.
  • IORGA, C., DESROCHERS, A., 2010, Generic Product Development Process at the detailed design phase, Canadian Engineering Education Association (CEEA) 2010 Conference, Kingston, Canada, June 7-9.

Non-Refereed Contributions
Papers in conference proceedings

  • DESROCHERS, A., 2014, Application de la méthode des éléments finis à la validation structurale, multicritères des châssis de véhicules, 6e colloque québécois sur le développement numérique de produits, Trois-Rivières, Canada, May 8.