Our cars

Since its foundation in 2007 AMZ has built three cars with conventional combustion engines and has been designing electric race cars since 2010. The following overview provides information on all the vehicles we have built so far.

flüela 2015 season
Information

 

“flüela” is continuing the evolutionary process of the vehicles “julier” and “grimsel” from the previous two years but is featuring multiple structural, mechanical and aero- dynamical innovations as a direct result of a drastically adapted set of rules.

The race car is driven by four wheel hub motors which reach up to 20’000 RPM. Hand in hand with a higher transmission ratio, “flüela” is able to achieve higher torque at the wheel at low speeds. The stiffness of the chassis (4700 Nm/deg) is guaranteed through a CFRP-monocoque with recessed suspension mounting points. This also offers the advantage of a higher degree of freedom in the kinematics design. Just like “grimsel”, “flüela” features adaptive dampers with a magnetorheological fluid (MRF). Through this technology the damping characteristics can be adjusted actively with regards to different driving situations.

The concept of pushrod actuated spring-damper elements has been adopted and further developed, resulting in a more efficient use of installation space. The adaptive dampers with magnetorheological fluid have been equipped with a self-engineered air chamber, which greatly expands adjustment possibilities. For the first time, the front wheel steering can be complemented by an optional rear wheel steering. It allows to turn the rear wheels by 3° in 150 ms.

An advanced traction control ensures that grip on all four tires is maximised at all times. Speed, slip angle and contact forces are taken into consideration by the controls. Furthermore a torque vectoring system controls the car’s dynamics in order to stabilise driving behaviour.

At the same time higher cornering speeds can be achieved. For further optimisation, the control algorithms take into account different environmental factors and driver preferences.

With “flüela”, AMZ was able to defend its first place in the world rankings for the second year in succession. The team was able to win two out of four events in the overall scoring. The engineering feats of the students were crowned with three out of four wins in the engineering design event.

Achievements
  • Overall FSE Spain
  • Overall FSE Austria
  • Overall FSE Germany
  • Engineering Design (FSUK, FSA, FSS)
  • Endurance (FSG, FSA)
  • Autocross (FSS)
  • Skidpad (FSUK-WR, FSS)
  • Acceleration (FSUK, FSG, FSA)
Power
4x 37 kW
Acceleration
0-100 kph
1.9 s
Weight
173 kg
Maximum
velocity
120 km/h
grimsel 2014 season
Information

«grimsel» with a total weight of only 168kg is he lightest vehicle in the history of AMZ and combines proven concepts with radical, new technologies. For example adaptive spring damper elements were implemented, as well as a drag reduction system.

«grimsel» is powered by four AMZ M4 wheel hub motors. The in house developed synchronous motors produce 37kW each at a weight of 3.4kg. The planetary gearbox which is integrated into the upright transmits the torque to accumulated 1630Nm at the wheels. Using traction control and torque vectoring the torque is individually controlled, increasing the agility of the vehicle.

The chassis, a one piece carbon fibre monocoque was manufactured by the team itself. By the efficient design of the layup a torsional stiffness of 4500Nm/deg could be achieved at a weight of only 18.3kg (including the roll hoops). The aerodynamics package produces enough downforce to drive at the ceiling at 110km/h.

In the suspension new 7.5” wide tyres and one piece carbon fibre rims are used. The pushrod geometry on the front and rear axle clears space for the wheel hub motors.

With three overall wins and an average of 920 points «grimsel» is AMZ’s most successful car. Furthermore with its victories in Austria and Spain it was able to achieve the two highest scores in the European history of Formula Student.

Achievements
  • Overall FSE Germany
  • Overall FSE Austria
  • Overall FSE Spain
  • Engineering Design (FSG, FSA, FSS)
  • Endurance (FSG, FSA)
  • AutoCross (FSG, FSS)
  • Skidpad (FSA, FSS)
  • Acceleration (FS UK, FSA, FSS)
Power
4x 37 kW
Acceleration
0-100 kph
1.513 s
Weight
168 kg
Maximum
velocity
120 km/h
julier 2013 season
Information

«julier» is AMZ's first race car that features four-wheel drive. Every wheel has its own electric motor mounted directly on the upright. Each motor is attached to a 1.5-stage planetary gearbox which is integrated in the upright and the wheel hub.

The wheel hub motors are four self-designed and self-manufactured AMZ M3 motors, weighing only 4.6 kg each. This leads to an outstanding power-to-weight ratio: Only 180 kg of vehicle mass are facing nearly 200 hp. Using Torque Vectoring the power can be distributed to all wheels individually, resulting in very good traction and enormous agility.

The chassis of the car is based on a one-piece monocoque made out of CFRP (Prepreg). In order to gain enough space for the wheel hub motors, the suspension design features push rod geometry on the front and the rear axle. All wishbones are made out of CFRP as well and the single-piece CFRP rims weigh less than one kilogram.

As the first electric race car ever «julier» was able to win a Formula Student competition where combustion cars compete in the same class. Moreover, «julier» won all four Engineering Design events and set a new record in the AMZ's history, winning 28 awards in just a single season.

Achievements
  • Overall FS UK
  • Overall FS Austria
  • Overall FSE Germany
  • Overall FSE Italy
  • Engineering Design (All Events)
  • Endurance FS UK
  • Acceleration FE Italy (WR)
  • Skid Pad FE Italy (WR)
Power
4x 37 kW
Acceleration
0-100 kph
2.6 s
Weight
180 kg
Maximum
velocity
120 km/h
umbrail 2012 season
Information

«umbrail» is AMZ's third electric race car and its first vehicle equipped with a full aerodynamic package consisting of a front and rear wing as well as an undertray.

The chassis is based on a highly torsional stiff monocoque made of CFRP (Prepreg) with a boot lid, the suspension's wishbones are also made out of CFRP, with the spring system designed as pull rods in the front and as push rods in the back. umbrail is the second AMZ car standing on wheels using 10 inch rims and with only 170 kg one of our lightest cars.

Two self-developed and self-built AMZ M2 electric motors form the heart of umbrail, providing a total power of 80 kW (107 hp). The rear wheels can be driven separately, which gives the opportunity to make the car even more agile using torque vectoring.

umbrail's energy supply is realized in form of a one-piece U-shaped accumulator containment which is equipped with lithium polymer cells. The containment is fastened to the bottom of the monocoque.

Winning 18 awards in total over one Formula Student season, umbrail is one of the most successful race cars in the history of AMZ.

Achievements
  • Overall Electric FS Austria
  • Overall Electric FS Spain
  • Overall FSE Germany
  • Acceleration FS UK
  • Autocross FS Austria
  • Autocross FSE Germany
  • Endurance FSE Germany
  • Engineering Design FS Austria
Power
2x 40 kW
Acceleration
0-100 kph
3.2 s
Weight
170 kg
Maximum
velocity
120 km/h
novena 2011 season
Information

«novena» is the second electric race car in the history of AMZ and the first car equipped with self-developed and self-built electric motors.

Most parts of the chassis and the suspension of novena are made of carbon fibre reinforced plastics (CFRP). The chassis' core is formed by the monocoque (Prepreg, lamination by hand), the suspension's concept contains one-piece 13 inch carbon rims and wishbones made out of CFRP. The design of the spring system uses pull rods on all wheels.

Both electric motors provide a total power of 70 kW (94 hp). Individual axle drive enables the car for effective yaw rate control (torque vectoring). The motors' power supply is guaranteed by lithium polymer cells installed in a U-shaped accumulator containment.

Its superior drivetrain concept lead novena to a new world record in the acceleration event at Formula Student Austria in Spielberg.

With two consecutive victories in the Engineering Design event at Formula Student Electric Germany AMZ was able to point out that its concepts and construction range among the best in Formula Student.

Achievements
  • Overall Electric FS Austria
  • Overall Electric FS Spain
  • Overall Class 1A FS UK
  • Overall FSE Germany
  • Acceleration FS Austria
  • Endurance FS UK
  • Engineering Design FSE Germany
Power
2x 35 kW
Acceleration
0-100 kph
3.4 s
Weight
181 kg
Maximum
velocity
120 km/h
furka 2010 season
Information

«furka» is the first electric race car built by AMZ and managed to win the newly established electric class at Formula Student UK in Silverstone straightaway.

The chassis of furka is based on a CFRP monocoque (Prepreg) with removable rear end. The suspension consists of carbon wishbones, with the spring system designed as pull rods on all wheels.

furka is driven by two AGNI DC electric motors providing a total power of 60 kW (82 hp). Energy is supplied by lithium polymer accumulator cells. AMZ's first electric drivetrain enables furka to accelerate from 0 to 100 kph in under four seconds.

Winning the Endurance race at Formula Electric & Hybrid Italy, furka could emphasize being able to compete with the competitors' pace right from the start.

Achievements
  • Overall Class 1A FS UK
  • Engineering Design FSE Germany
  • Endurance FEH Italy
Power
2x 30 kW
Acceleration
0-100 kph
3.8 s
Weight
227 kg
Maximum
velocity
111 km/h
simplon 2009 season
Information

«simplon» is AMZ's first car to beat the 200 kg mark. By intense and consequent light weight construction we were able to save 40 kg of weight compared to the preceding year.

The chassis of simplon is based on a CFRP monocoque with removable rear end. The suspension's wishbones are also made out of CFRP. The spring system design implements pull rods at the front and push rods in the rear.

One of simplon's innovative attributes is its four-cylinder Suzuki combustion engine with a capacity of 600 ccm that was changed over for operation with bio ethanol (E85).

These features made simplon capable of winning the dynamic events at Formula Student UK in Silverstone.

Achievements
  • Overall Dynamics Class 1 FS UK
  • Acceleration FS Austria
Power
60 kW
Acceleration
0-100 kph
3.6 s
Weight
198 kg
Maximum
velocity
130 km/h
maloja 2008 season
Information

«maloja» is the second race car built by AMZ. After the debut season we optimized the choice of materials, leading to increased usage of carbon fibre reinforced plastics in the 2008 season.

The chassis is based on a CFRP monocoque (wet lamination) with a load-bearing engine for the first time. The suspension's wishbones are also made out of CFRP, implementing a spring system design using pull rods at the front and push rods in the rear.

As albula before, maloja is driven by a four-cylinder Suzuki combustion engine with 600 ccm. Its powered could be increased to 66 kW (90 hp).

Achievements
  • Engineering Design FS Italy
  • Endurance FS UK
Power
66 kW
Acceleration
0-100 kph
3.8 s
Weight
238 kg
Maximum
velocity
135 km/h
albula 2007 season
Information

«albula» is the first car in the history of AMZ.

Its chassis is based on a steel tube frame, encased in a glass fibre housing. The wishbones are made out of steel; the spring system is implemented using pull rods on all four wheels.

albula's engine is a four-cylinder Suzuki combustion engine with a capacity of 600 ccm. It provides 60 kW (82 hp) of power.

With these performance characteristics AMZ's debut car manages to accelerate from 0 to 100 kph in under four seconds. Finishing second in the Autocross race at Formula Student Italy, albula could underline its speediness.

Achievements
  • Autocross FS Italy
Power
60 kW
Acceleration
0-100 kph
3.7 s
Weight
258 kg
Maximum
velocity
150 km/h