HOW WE STARTED: OUR FIRST PROTOTYPE
The beginning of our journey starts with an “Intention”. A goal is to reduce the pollution emitted from vehicles. The amount of pollution created is dependent on two major factors. That is the Engine power and the number of operating hours. For a user, the daily travelling distance on the vehicle is fixed that making us easier to calculate the operating hours. Another factor that contributes to the emissions is the type of engine.
There are two most commonly available engines in the industry.
Diesel engines produce more amount of pollution and require frequent maintenance than petrol engines. It is because of the increased amount of Sulphur oxide emission content in diesel engines.
Considering these factors, light commercial vehicles and personal cars make a clear choice, to begin with, to start reducing pollutants in the environment. The statistics of the Auto Industry shows that 4% of the Indian automobile industry is commercial vehicles. Close to 25% of the industry is occupied by passenger cars and 71% by two-wheelers (Geared, Non-Geared and Moped).
The impact of pollution created by passenger cars in traffic areas, cities and a lifetime is greater because of an increasing population.
That is why we begin with the retro-fitment of sedan vehicle Suzuki Esteem 2004 VXi model. The Suzuki esteem model is a front-wheel-drive vehicle with engine power 85 Ps @ 6000 RPM and a max torque of 110 Nm @ 450 RPM. It is a 4.095-meter-long sedan vehicle with a kerb weight of 875 kg and a gross weight of 1315 kg.
It begins with:
1.Design of power transmission system.
2.Selection of the motor
3.Arrangement of the test battery systems. Lead Acid.
4.Procurement of the standard parts.
5.Manufacturing and fabrication of the parts.
6.Assembly of the components of the vehicle.
COMPONENTS OF POWERTRAIN
To transmit the motion, from the differential assembly to the wheels, we modified the knuckle of the wheel and manufactured a Constant Velocity Transmission (CVT) shaft. The end of the CVT contains Male Female Splines that engages and transmits the motion to the wheels.
To bias the speed of the wheels while taking a turn around a roundabout, we have used a differential assembly at the rear drivetrain. We have outsourced the differential assembly of Suzuki Omni. It had a differential ratio of 4.33:1. We have used these results, for all the further calculations of our project.
The motor was finalized using a meticulous calculation and considering the factors of traffic, iron and copper losses, mechanical losses and required forces on the vehicle. We have considered four basic forces on a vehicle: –
4.Rolling Resistance force.
I would like to thank my Mother Ms. Suman Joshi & my Father Mr. Gopal Joshi, for supporting me in every way possible. I present my love to my elder siblings for supporting me. They were always there whenever I need them. I would like to thank all my teachers and my mentor Mr. Kiran Nawathe. It gave me a lot of opportunities to learn and help me go through ups and downs while working with him. His teachings gave me a benefit for completion of the project as well as help me improve in life. Lastly, I would like to thank all the fellow researchers who published their valuable work. It inspired and gave the proper knowledge required for the completion of the project.