Personal

Welcome to my personal space! This space reflects my take on life , what i feel about various things and my experiences.

munnar photo

Munnar trip in an EV

07/09/21

This is how i travelled to munnar overcoming my range anxiety in an EV.

A Friend of mine was arriving from abroad and we had planned to catchup over a few drinks. Thus we settled for a perfect location to set the vibe and that is “Munnar”.

But there was a problem and that being me from kollam and my friend being from thrissur, he had to land at nedumbassery airport. Obviously a normal sane person would avoid it because of the hectic drive and fuel prices but i had an EV so why not !!

Day 1 : The begining

Started from my home at Anchalumoodu, Kollam at midnight as i had to reach airport at 4:30 am . It was slightly raining, I had decided to turn off my Ac and opened the window. When the rain got heavy i would close the window and turn on the ac where the fan speed was at 1 and temperature at 25. (This is my default setting so whenever i say i turned on my ac this will be my setting).

Drive mode = sport

Wh/km achieved : 94-95

SoC started at 100%

This way I reached kalamassery way before schedule (3:45am) and thought i could charge the car from "MG Coastline Garage, Cochin" and pick my friend but the garage was closed and i couldnt find a watchman there. Then i drove backwards to FACT road as there is a charger but unfortunately there, the machine was disconnected and not working. Then my next option was at a place called "Pongam", which is beyond the airport, so i went to the airport, picked my friend then reached Pongam IOCL pump to charge my vehicle.

Drive mode = sport

SoC = 25%

Wh/km = 95

Next i charged my vehicle till 90 percent and at around 7:45 we set out to Munnar. This time we had some heavy traffic throughout Mc Road so the AC was on for atleast 50km from here.

Drive mode = Drive

Wh/km = 95

Once the traffic started receding. I started to notice the ambience of an approaching hill station. As we climbed uphill slowly, the landscape transformed from a sound polluted city filled with cars, buses and trucks, to full of trees and clouds of mist. Moving further my friend slowly dozed off while I drove listening to some songs from my playlist. At 11:30 am we reached munnar (Hotel Green Ridge Munnar )

Drive mode = Drive

Soc = 25%

Wh/km = 106

drive video

The hotel had Ev customers before so they provided me charging at the rate of 20₹ per kwh. Full charge took till night so i had to do sight seeing through hotels vehicle arrangement.

Day 2 : The Descent.
ev photo

Our check out time was 12:00 pm and since our vehicle was at 100% i knew i couldnt make use of regeneration so i decided to go further uphill and drain the battery atleast a 5% but to my surprise the battery drained 5% with only 10km of travel (to and fro). So we checked out from the hotel and started our descent.

munnar photo

My next stop was charging station at viyyur (159km from munnar). Because i had to drop my friend at thrissur. The amazing thing was i got to know the vehicles regeneration ability . I could see my vehicle charging from 95% to 98% and even after travelling 70+ km i had 93% charge and reached viyyur by 5:15 pm with one stop somewhere near chalakudy where we had food.

Drive mode = sport from angamaly till then drive mode

Wh/km = 67

Soc = 58%

ev photo

From viyyur FC station did a 95% top up and started my travel back to home (225km from viyyur station) i started at 6:30pm from viyyur didnt stop anywhere and ac was on throughout the travel. Reached home at 11:50 pm and put the vehicle on slow charging.

Drive mode = Sport

Wh/km = 95

Soc = 25%

This trip taught me a lot about EV driving and further decreased my range anxiety. With every long trips i make i am more confident about my EV and i can confidently recommend one to my friends and relatives.

Untill next ride!!!

Technical

I mostly use this space to write about things to remember while working on projects, like how to get around errors and stuff

"Anytime" : R

14/12/21

So recently I was working on a very large dataset (about 24 million rows ) and obviously Excel/Googlesheets was never an option to choose from. As The raw data needed some wrangling and one such instance was the date column. First of all the date column was of the character type and while converting using the mdy()(or another date function for that matter) of the lubridate package gave me “NA” in the whole column. On researching upon the issue I saw an article on a cool package called “anytime”. This package is a lifesaver. It contains two of my favourite functions now : anydate() & anytime()(NB: anytime is both the package name and the function name) anytime() converts literally anything to the standard date format(ymd). According to the package document “Convert input in any one of character, integer, numeric, factor, or ordered type into ’POSIXct’ (or ’Date’) objects, using one of a number of predefined formats, and relying on Boost facilities for date and time parsing.”

For example : anydate function can convert the following formats :

1–2-2021, 02-01-2021, 1-Feb-2021, 01-February-2021, 2021-01-02 etc.

to its standard ymd format as 2021-02-01. Similarly anytime can be used to convert date time objects.

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