Mihir Vardhan has been fascinated by instruments because the age of three.
The 20-year-old was launched to the world of engineering by his mother and father, and acquired his first toolbox from his father when he was six years previous. Since then, he’s been tinkering round with objects along with his screwdriver and constructing issues like robots, LED panels, and 3D printers.
“My father would purchase me and my brother little lights, bulbs, and batteries. He would train us the right way to wire them up. Each birthday, I’d get some form of software. I began constructing my assortment on the age of six and it continues until right now. My total room became a workshop,” he tells The Higher India.
When he was in Class 8, Mihir launched his YouTube channel referred to as ‘Making with Mihir’. He needed to speak his love for engineering by means of this channel.
Whereas he began from small initiatives like constructing a torch, right now, his works have grown into one thing larger. Take, for instance, the petrol automotive that he transformed into an electrical car.
His newest video, titled ‘Easiest EV Conversion below $3000 – Convert Your Automotive in 3 Days!’, has grabbed fairly a couple of eyeballs.
Changing a automotive to electrical in three days
The concept for this was born virtually a decade in the past. Mihir credit his household good friend James Abraham for instilling the thought in his head.
“James’ uncle is an engineer and used to show me about electronics. He’s a ‘inexperienced man’ and runs a photo voltaic firm. After I was in Class 5, he instructed me that we have to convert a petroleum automotive to an electrical one. He used to say that we must always purchase a small automotive like a Maruti 800 and convert it. At the moment, I simply laughed it off. However he stored reminding me of this mission yearly,” he says.
Mihir is at present pursuing electrical engineering on the College of Illinois and is in his third yr. When he returned residence to Gurugram for a brief journey in September 2021, James reminded him of the mission but once more. This time, Mihir took it severely and determined to go forward with it.
He determined to transform his grandfather’s 12-year-old Hyundai Santro.
“The Santro was simply mendacity in our storage and I believed, ‘Why don’t we take the engine out and make it a totally electrical automotive?’. It’s an exquisite automotive, solely the engine is a bit of drained. I went on the web and looked for movies of individuals changing vehicles. However as an alternative of replicating what others had finished, I made a decision to make some tweaks,” says Mihir.
He says that the three most necessary issues in relation to conversion are choosing a motor, a controller, and a battery.
Whereas the wheels had been set in movement in September, they got here to fruition in January 2022, when Mihir returned to India for a brief journey.
“I went on the Indiamart web site and reached out to sellers of things I wanted. Slowly, the items of the puzzle began falling into place. As my journey to India was a really quick one in January, I needed to execute this in a brief interval. I like tight timelines and the problem,” laughs Mihir.
Making the conversion easier and cheaper
As soon as he reached India in January, he began ordering the motor, controller, battery, and converter to exchange the automotive battery. It took virtually 10 days for these things to reach. He was left with simply three days earlier than he flew again.
Mihir was clear about two issues with respect to the conversion — maintaining it easy and low-cost.
“I needed to maintain the method so simple as potential, and use as a lot of the automotive as I might. I additionally needed to minimise the welding and machining, and devise a course of which will be finished within the basement of your constructing with out utilizing fancy instruments,” he says.
Actually, he did the conversion utilizing a fundamental socket set, a ground jack, and two bricks.
Normally, in such conversions, all the engine is eliminated and changed by a motor. However Mihir determined to take away solely half the engine.
“When all the engine is eliminated, it’s good to add two extra motors to energy the facility steering pump and AC compressor. You additionally then must give you mounting brackets and add lots of wires. It’s time-consuming, troublesome, and costly. I made a decision to go away half the engine in, and mount the motor on the remaining a part of the engine,” says Mihir.
Whereas this can compromise efficiency and effectivity, it’s sufficient for metropolis driving, says Mihir. The benefit is which you could energy the wheels of the automotive, the facility steering pump, and the AC compressor. This fashion, he has additionally saved about Rs 1.5 lakh, he says.
Modifications made within the automotive
Mihir began by taking out the engine. He eliminated the engine head and pistons to scale back the engine’s weight and retained the engine block. He then mounted the 6 kW Brushless DC motor on prime of this engine block utilizing an L-shaped motor block. He related this motor to a 350A Kelly Controller.
He positioned the 72V 100Ah Lithium Ferrophosphate (LFP) battery within the trunk. He has positioned the charging wire the place one would often put petrol.
Since braking could be a difficulty, and he needed energy braking, he added an electrical brake booster vacuum pump. He additionally added a 72-12V DC-DC convertor to cost the battery that powers the locks, lights, and energy home windows.
Mihir spent Rs 2.4 lakh on this conversion. The automotive runs at a prime velocity of 60 km/hour and has a variety of 80 km.
He additionally says that the price of working this automotive is lower than Rs 1/km, whereas a petroleum automotive prices Rs 8-10/km, together with upkeep.
“Though a automotive’s efficiency could be higher with a bigger motor and battery, that is ok for metropolis driving. It’s also an excellent use of an end-of-life automotive just like the one I used. As a substitute of throwing it out, and including to the carbon emissions, we will reuse it like this. In most end-of-life vehicles, it’s solely the engine that doesn’t perform nicely, resulting in elevated emissions. By changing to an electrical car, you save on these emissions,” says Mihir.
As per a report by the Centre for Science and Atmosphere (CSE), India may have greater than two crore end-of-life automobiles by 2025. The report says that these automobiles will trigger large air pollution and environmental harm.
Such conversions is usually a good use of those automobiles, for us and the setting.
“I wish to get individuals excited about changing their vehicles to electrical. There are such a lot of assets accessible on-line. Simply converse to sellers on Indiamart and your native mechanics. They’ll be capable of present a good suggestion of the completely different choices accessible,” he says.
“I wish to get individuals excited about changing their vehicles to electrical. There are such a lot of assets accessible on-line. Simply converse to sellers on Indiamart, and converse to your native mechanics. They’ll be capable of present a good suggestion of the completely different choices accessible,” he says.
Mihir additionally took the assistance of his native mechanic Ustad, who was with him all through the method. He hopes to encourage extra individuals to take up engineering and use their data for good. Through the peak of the pandemic, two of his initiatives enormously benefited the general public.
He says he printed greater than 1,200 face shields for docs utilizing a 3D printer at residence. He additionally created UVC (Ultraviolet C) machines that might sanitise and disinfect.
“I created two disinfection chambers first, one huge and one small. As soon as individuals noticed them, orders began to pour in. I named it the Terminator Mega and offered one to the PMO’s workplace, and 6 to the Military. I additionally created a robotic referred to as Terminator Turbo that may sanitise a complete room,” he says.
He’s now specializing in initiatives associated to sustainability and hopes to begin a sustainable enterprise in India after ending his engineering.
In 2018, he solved the issue of a excessive electrical value at an orphanage close to his home. He designed and managed the set up of a 19.5 kW photo voltaic plant on the orphanage, which now has diminished their prices to an excellent extent.
“I wish to work in direction of sensible, inexpensive, and accessible options for sustainability,” says Mihir.
‘India may have over 2 crore end-of-life automobiles by 2025: CSE Report’ Revealed on 28 September, 2020 Courtesy Autocar skilled
Edited by Divya Sethu, Photos courtesy Mihir Vardhan