SolarMobil Manipal

SolarMobil Manipal is the official Solar Car student team of Manipal University, Manipal. The team, founded in 2011 by a group of engineering students of Manipal Institute of Technology, is the third Indian solar car team. SolarMobil is a student project aimed at research & development of solar powered electric vehicle.

Since its founding, the SolarMobil Manipal team has built 2 cars, Freyr-1 - a single seater solar race car and SERVe (Solar Electric Road Vehicle), which is India's first institutional solar electric vehicle prototype. The team is currently working towards a third project.


The Team


The team primarily consists of undergraduate students from various disciplines of engineering at Manipal Institute of Technology. They receive support by the faculty of Manipal Institute of Technology. SolarMobil Manipal was formed with a vision of becoming a centre for research & development on solar vehicles. While being the third Indian solar car team, SolarMobil has competed and stood out in various contests and has earned recognition on a national level, along with training engineers towards green innovation in the automobile sector. The team is working towards developing practical solar passenger vehicle prototypes. Other than the university support, the project is also supported and has been supported in the past by Tata Power Solar, Element14 and other technology partners. The team has three separate departments - Mechanical, Electrical & Management working on various aspects of the project.

Projects

The team has developed two projects till date Freyr-1 and SERVe. They are currently working on a third, unnamed project.

Freyr-1

Freyr-1

Freyr-1 was SolarMobil’s first car. The car marked the inception of the student collective project -SolarMobil in 2011. The designing, manufacturing and assembly of the car was carried out in-house by the SolarMobil team. Freyr-1 is a single seater, three wheeler solar racing car. The most notable features of this car were its lightweight space frame chassis, the custom-made suspension system and its ability to drive directly on solar power using a high-power-efficiency drive train.

The most notable features of this car were clean and free fuel with zero emissions and zero noise pollution. It is built with AISI 4130 Chromoly steel chassis which gives it high strength to weight ratio and Fibre Reinforced Plastic body making it lightweight. The solar panels with a 6m2 area constitute the top of the car. The car adheres to World Solar Challenge specifications and belongs to the ‘Adventure Class’ category of solar vehicles.

Technical Specifications of Freyr-1

Structure •Chromoly 4130 steel tubular spaceframe chassis
Body shell •Fibre reinforced plastic
Suspension •Front – double wishbone coil over suspension unequal length non parallel arms
Rear •Swing arm mono shock
Steering •Rack and pinion with zero bump steer geometry
Brakes •Dual circuit hydraulic disk brakes with parking brake on rear
Motor •SCM 150 nugenaxial flux brushless DC HUB 10 hp motor
Battery pack •LiFePO4

•(Lithium iron phosphate) cells 6.5 kwh with custom-made battery management system

Solar panels •Mono crystalline cells total output 950 watts

•Custom-made wiring hardness and telemetry system

SERVe


SERVe (Solar Electric Road Vehicle) was designed in 2015, making it India's first passenger solar electric vehicle prototype. It is a two seat, four wheeler solar electric passenger car. The top is covered by a curved solar panel which powers the battery pack; which in turn runs the motor. The solar car is capable of a top speed of 65 kmph and has a range of about 250 km. The key features of the car is that SERVe is, like Freyr-1, it also uses clean and free fuel with zero emissions and zero noise pollution. It is built with AISI 4130 Chromoly steel chassis which gives it high strength to weight ratio and GFRP body making it lightweight. It has an aerodynamic and aesthetic design obtained from the cut section of a tear drop - the most aerodynamic shape. Curved solar panels are used with a 6m2 area for increased energy generation at 20% efficiency. Focus is laid on improved driver ergonomics. One of the most notable features about the car is that it is energy positive. With SERVe, SolarMobil entered and excelled in various competitions, most notably, being the winner of QuEST Global’s annual pan-India innovation contest – QuEST Ingenium 2015. Among the shortlisted 10 teams, SolarMobil from Manipal Institute of Technology was adjudged as the winning team. Besides an enticing cash prize, SolarMobil team members have been sponsored by Airbus to fly to Europe on a facility tour of its Stade & Bremen facility in Germany. SERVe also secured the 3rd Place Prize at CII India Innovation Challenge amongst 1500 entries in 2014.


Conceptual Design Of Serve

Technical specifications of SERVe

Body Work •Fiber Glass reinforced Plastic

•Aerodynamic design and good Aesthetics

Chassis •Steel Space frame
Suspension systems •Push rod-Rear double wishbone-Front
Brake system •Hydraulic line system
Motor •Permanent magnet DC motor
Solar Panels •Custom made by Tata Power Solar
Data Acquisition & Telemetry •Single Board Computer

•Controller Area Network •Smart 7" LCD Display

Li-Ion Battery Pack •High Energy Density

•Range of 115–150 km

Achievements

Year Record
2012 Consolation prize for Freyr-1 at Manipal University Innovation Day
2014 CII India Innovation Challenge
2015 Winners of the prestigious QuEST Global’s annual pan-India innovation contest – QuEST Ingenium, for SERVe.
2015 1st Prize under category UJJWAL at IIT Bombay's Tech Fest
2015 Consolation prize for SERVe at Manipal University Innovation Day

References

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