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VIT Eco Titans design highly energy efficient prototype vehicle, to showcase in Singapore contest

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Chennai | Sunday, Jan 14 2018 IST
 
A group of students from VIT have designed a prototypeof highly energy efficient vehicle 'ET18' capable of giving more than 200 km on just a single litre of petrol. The team calling themselves as VIT Eco Titans students would participate in Shell Eco Marathon in Singapore in March where they would showcase their prototype and vie for international honours. Addressing the media on Sunday VIT Eco Titans team members Neelesh Kumar, Prabhat Khetarpal, Siddharth Padmanabhan, Shubhang Khare, Himanshu Agarwal said, "acing at the Shell Eco Marathon, Asia is our primary aim. We build super mileage cars that will define the next generation of energy efficient vehicles and will be adopted for mass production.''''The team participates in the international competition, Shell Eco Marathon Asia, organized by Shell every year'', they said.''Our ET'18 is the coming together of high-efficiency technology, innovation, creativity and technical precision. It is a prototype model, built to seat a single person and designed to be as lightweight as possible'', they said. Stating that it was the weight of a vehicle which was one of the major factors that increases fuel consumption and decreases mileage, they said weight reduction was achieved by using very lightweight yet highly durable Aluminum 6061 to build the chassis of the vehicle.The drivetrain of the vehicle consists of a continuous variable transmission (CVT) and lightweight sprockets which further contribute to weight reduction. The tyres have alloy rims fitted with ultra-light ceramic bearings which spin like a charm. This ensures that the wheels turn smoothly with minimal internal friction, and thus, increasing the mileage of the vehicle.The steering mechanism of ET'18 is built on the Ackerman steering geometry andhas been simplified in the form of a bell-crank mechanism which allows for efficient handling of the vehicle, which was fitted with hydraulic disc brakes, for both rear and front wheels, which ensure optimum stopping force for the vehicle under all conditions.A major leap in fuel efficiency is achieved from the engine powering ET'18, the students said. It is a 49cc, single cylinder GY6 engine based on designs first developed by Honda. The engine has been modified radically by removing the inefficient carburetor that was standard today in many vehicles. It has been replaced by an Electronic Fuel Injection (EFI) setup that was the cutting-edge technology available today to achieve fuel efficiency in automobiles. This EFI setup is regulated by a highly efficient Engine Control Unit (ECU) model, called PE-3, which is a semi programmable digital system. The engine has been fitted with a custom designed exhaust pipe which has tuned for further efficiency. Due to regulations of the Shell Eco Marathon event, the fuel pump was replaced by a pressurized pneumatic system which pushes the fuel to the injector.The biggest gain in efficiency has been achieved by tuning the engine on a highly sensitive eddy current dynamometer facilitated by VIT. All the electrical connections on-board the vehicle have been consolidated to a custom fabricated power distribution board that eliminates redundant long wiring.Team Eco Titans has been declared as the Best Communications team in India and runners up in Asia by Shell at the Shell Eco Marathon Asia 2017.They said the Shell Eco Marathon challenges student teams around the world to design, build, and test ultraenergy efficient vehicles. With annual events being held at US, Europe and Asia, the teams compete internationally to travel the farthest with the least amount of fuel. The events spark debate about the future of mobility and inspire young engineers to push the boundaries of fuel efficiency. UNI GV 1245

-- (UNI) -- C-1-1-DL0275-1208895.Xml

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