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invictus 2.0.JPG

The Invictus 2.0 was our first vehicle that was a part of ESVC (Electric Solar Vehicle Championship). It was formed from a carbon fiber monocoque chassis, making Team Solarium the second team all over India and achieve this feat. It also consisted of an electronically actuated gear shifting mechanism that allows us to change gears with the push of a button. These innovations and ideas propelled Team Solarium to achieve the best design award in the competition.

Awards won

Key features

Weight: 134 Kg

Dimensions: 3466mm X 1574mm X 1064mm

Wheels: 3 Wheels - Tadpole Formation

Motor type: Brushless DC Motor

Battery Type: Li-ion Battery


 Chassis System 

 Wheelbase: 1684 mm 

 Wheel track: 1463 mm 

 Ground Clearance: 116 mm 

 Weight of Chassis: 45.5 kg 

 Weight Distribution: 53% on front axle & 47% on rear axle 

 Chassis Material: CF 300,400 GSM Bi-directional twill weave 

 The goal is to design a lightweight chassis by going through all the important processes and regulations including the driver's safety.


 Suspension System 

 Spring Index: 8 


 Caster Angle: 2° 

 Motion Ratio: 0.89 

 Spring travel: 76 mm 

 Turning radius: 3.2m 

 Kingpin Inclination: 7° 

 Suspension is used to improve the ride quality of the vehicle and absorb vibrations from the road surface. Invictus 2.0 has an anti-squat with an adjustable inclination mono shock swing arm.


 electrical System

 Cells used: 246 

 Battery efficiency: 98% - 99% 

 Motor Specifications: 48 V with 3000 rpm 

 Motor Peak Torque: 30 Nm 

 Panel efficiency: 22.3% 

 Solar Specifications: Monocrystalline, 610 W 

 We have used the solar panels to charge the battery and also to run the   motor.  We are using a microcontroller named Arduino to monitor and control   the gear   shifting and cooling of the vehicle.


 Steering System 

 Steering efforts: 74 N 

 Locking angle: 40° 

 Steering ratio: 2.8:1 

 Scrub Radius: 60 mm 

 Turning radius: 3.2 m 

 Steering wheel diameter: 254 mm 

 The steering system should allow the driver to guide the vehicle over the desired course with minimum effort. It has an Ackermann geometry, to provide perfect steering angles at turns with a simple and compact design.


 brakes System

 Pedal force: 400 N 

 The radius of wheel: 215 mm 

 Stopping distance (s): 7 m 

 Caliper piston diameter (Dp): 25.4 mm 

 Coefficient of friction in pad and disc (µc): 0.3 

 A customized caliper was manufactured which only weighs 1/4 of the calipers in   the market. Further, the disc will be manufactured by water jet cutting and   surface ground to achieve the required thickness.


 transmission System

 1st Gear acceleration: 2.62 m/s2 

 4th Gear acceleration: 0.67 m/s2 

 Gearbox Material: Aluminium 

 4-speed gear reduction with DAQ system 

 Semi-automatic gear shifting by using servo motor with Arduino 

 Transmission is used for achieving maximum speed and maximum acceleration.   It is designed for minimum losses and maximum efficiency.

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