In the run-up to its BS-VI preparations, Indian auto manufacturer Tata Motors has received BS-VI Type Approval certificate for its 3.8L NA SGI CNG engine from ARAI (Automotive Research Association of India). It is the first OEM in India to achieve BS-VI certification for a naturally aspirated CNG engine for commercial vehicles.
This certification includes meeting the tailpipe mass emissions as well as compliance to On-Board Diagnostics (OBD) norms as mandated by government regulation. With this success, Tata Motors continues to stay on its path of offering environment friendly products in India.
Speaking on the occasion Mr. Rajendra Petkar, Chief Technology Officer (CTO), Tata Motors said, “This BS-VI engine certification milestone has been achieved with intense design and development focus, by leveraging in-house capabilities and those of our technology partners. We have worked hard to build a leadership position in the market by providing our customers with economical, best-in-class natural gas vehicle products in the commercial vehicle market and this development of BS-VI solution will further reinforce our market offering.”
The 3.8 NA SGI CNG engine is a naturally aspirated engine i.e. it does not need a turbocharger, and comes with sequential gas injection technology, pioneered by Tata Motors in India. It produces a maximum power of 85 Ps @ 2500 RPM with a torque of 285 Nm @ 2500 RPM. This combustion occurs at stoichiometric conditions in this engine. Exhaust after-treatment system featuring three-way catalytic converter reduces pollutants below limits mandated by regulation.
The 3.8 NA SGI CNG engine will power 4T to 9T GVW buses and trucks such as the 407, 709 and 909 (existing BS4 versions). Truck applications include water tankers too.
BS-VI norms will come into force in India from 1st April, 2020. The upgradation from BS-IV to BS-VI requires complex engineering, a challenge that demands not only pushing the technological advancements to the limits, but also calls for a turnaround of the infrastructure and facilities required for this development, which is highly capital intensive in nature with long lead execution periods.
Tata has installed a state of the art “Emission Test Facility” at the Power Systems Engineering Division (PSE), in ERC, Pune. This facility serves as one of the crucial milestones for BSVI implementation.
Tata Motors has been consistently working towards upgrading its engines and vehicles to meet the required BS-VI emission norms and is committed to bring environment friendly products to market.
Bharat Stage VI (BS-VI)
In view of India’s severe air pollution, the Government decided to shift to Bharat Stage VI (Euro-VI) emission standard for various category vehicles by 2020 directly, leapfrogging from Euro IV emission norms for petrol and diesel. The BS-VI norms will be implemented for new vehicles by April 2020 and for existing vehicles by April 2021.