Honest Auto Tech

Hello This is Bhushan. I will try to give you AutoGyan (Automotive information)/Honest Automobile Reviews.


Tuesday, July 2, 2019

Is Indian Auto Industry is ready to Accept Change with ICE!!

Hello Everyone,
New developments in powertrain technology are likely to rearrange the business models of every automaker in India as internal combustion engines (ICEs) appear to be more Cleaner emission from the tailpipe and it is on the verge of a slow but sure decline. As we are seeing from last few months Auto Industry on the decline, people are moving towards the Petrol Engines, being low on efficiency it is been chosen widely.

Pulling out Hands from diesel engine was right decision or Industries were not ready to Accept the Changes ? is Big Question and yes it should be arise in everyone's mind, Maruti Suzuki was big giant having 51% of the market share was really unaware of this or they wanted to sell their cars in the same condition (now the condition is worst in normal touches also you may see many images regarding the quality of their vehicles), Diesel cars were preferred and loved by consumers as they were having more Fuel Economy ( India is a country where car is bought on the basis of Kitna Deti Hai, rest is myth.) 

As Industry is shifting towards the BS-6 as the norm is stricter than before, the manufacturers have to work a lot to make their engines compliant to new norms, as diesel engines were more prone to pollution making them refined is a big task. The INDIAN Giants like Maruti Suzuki, Tata Motors told publically they will not sell diesel engines from April 2020, as the total cost to change the setup and the overall product cost will not meet their demands of Profits.

In whole scenario companies who banned or announced stopping the sales of Diesel Engines show a large decline in their year on year as well as month on month sales, only Mahindra Rise was the Indian manufacturer who completely depends on Diesel Engine showed the Rise, (I like their way, as per the name they are rising in hard times also.)and they also upgraded their Engine Lineup to meet new norms (Proud of You Mahindra as it is Indian Manufacturing company, Everything is Make In India and will remain in India)

Implementation of Norms
Image Source: wri-india.org

What are Challenges in DIESEL ENGINES TO UPGRADE IN BS-6?

In Diesel Engines three devices i.e Catalytic converter, Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) are fitted in series. Although catalytic converter is there in BS IV vehicles two extra devices DPF and SCR are to be fitted extra to make vehicle BS VI compliance vehicle. 

What are Challenges in PETROL ENGINES TO UPGRADE IN BS-6?

a. Re-design of ports and exhaust system improvements to achieve more effective scavenging and reduced mixture short-circuiting.
b. Higher compression ratios along with improved carburetion by electronic carburetion/ electronically managed fuel injection / port injection or direct injection to achieve better control on air-fuel ratios.
c. Lean & charge stratification with controlled auto ignition and variable ignition timing for better & complete combustion of fuel.
d. Combustion chamber re-design & sparkplug re-location to reduce knocking on account of the higher compression ratios.
e. Piston re-design to minimize crevice volumes & friction losses, complete transitioning to microprocessor-based electronic control, enhance the onboard diagnostic system.
It is almost certain that fuel injection may completely replace the conventional carburetor with
the next stricter BS-VI emission norms in India.
Two types of fuel injection systems that can be used on small 2-stroke, spark ignition, gasoline engines fitted on 2 & 3-wheeled vehicles include viz. Air Assisted Direct Injection (AADI) and High-Pressure Direct Injection (HPDI)

Government has made compulsory to Indian Auto Industry to sell only Bharat Stage-VI which will kick from 1st April 2020. The norms were introduced in 2000. With appropriate fuel and technology, they limit the release of air pollutants such as nitrogen oxides, carbon monoxide, hydrocarbons, particulate matter (PM) and sulphur oxides from vehicles using engines. As the stage goes up, the control of emissions become more stricter. Thus Bharat Stage VI norms are two stages ahead of the present Bharat Stage IV norms in regulating emissions. These norms are based on similar norms in Europe called Euro 4 and Euro 6.

What is the Difference between BS4 and BS6 norms?

The extent of sulphar is the major difference between Bharat Stage IV and Bharat Stage VI norms. BS-IV fuels contain 50 parts per million (ppm) sulphur, the BS-VI grade fuel only has 10 ppm sulphur. BS VI can bring PM in diesel cars down by 80 percent. The new norms will bring down nitrogen oxides from diesel cars by 70 percent and in petrol cars by 25 percent. BS VI also make onboard diagnostics (OBD) mandatory for all vehicles. OBD device informs the vehicle owner or the repair technician how efficient the system is it shows each and every activity of vehicle in your cars multi-information display (MID) or in your Mobile Phones

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