Tata Motors is currently leading the EV segment in our country. They recently launched a new dedicated division to electric vehicles. It is called Tata Passenger Electric Mobility Limited. Now, the new subsidiary will be using three platforms to underpin the new electric vehicles. The first platform will be a converted ICE one, then there will be a bespoke EV platform and finally, there will be a new skateboard platform.
ICE converted platform
We have seen this platform on the Nexon EV and the Tigor EV. Basically, a vehicle with an internal combustion engine is converted to an electric vehicle. Tata Motors has already done this by converting the regular Nexon and Tigor to electric vehicles. This is done because developing an electric vehicle from the ground up will take a lot of time and research. It is much more affordable for the manufacturer to just use an existing platform. The upcoming Nexon Coupe EV or Blackbird will be based on Nexon’s X1 platform.
Tata’s new Sigma platform
The issue with the ICE converted platform is that it was originally made for an internal combustion engine because of which there is no dedicated space for batteries. So, the manufacturer has limited space to place batteries. So, the space has to be taken from the floorboard and even boot space. This affects the comfort of the occupants and also decreases the practicality of the vehicle. Because there is limited space the manufacturers have to stick to limited sized batteries which in turn means that the driving range is also limited.
The Sigma platform is derived from Tata Motors’s current ALFA platform. It is already being used on the Punch and Altroz and is also called the X4 platform. The platform is capable of heavy modification. So, the manufacturer has removed the transmission tunnel, fuel tank and side members have been repositioned to the sides. This helps in creating more space for the larger battery pack because the floor is now flat. So, the whole platform has been modified to accommodate the battery pack as efficiently as possible.
This means that the vehicles based on the Sigma platform will be able to take in a bigger battery which means that they will be more efficient and will deliver a more driving range. The Sigma platform will be used on the Sierra EV that will launch around 2025. So, it is still a few years away.
All-new Skateboard platform
The third platform is the Skateboard platform which is the best for electric vehicles. It looks exactly like it sounds. So, there are four wheels on the corners and a flat board in between. This opens up a lot of interior space and also means that there would be a lot of space for the batteries. Manufacturers like Tesla and Hyundai use the Skateboard platform. Hyundai’s E-GMP platform is being used on their IONIQ vehicles and even on some of Kia’s electric vehicles. Having said that the Tata Motors Skateboard platform is still some years away because this platform can only be used on electric vehicles so the Indian market would need to be more mature for buying and accepting electric vehicles.
Via Autocar India