Catalyst-Based BS VI Stage 2 Emission Control Solutions for Light Duty Diesel

Sumiya, Satoshi; Kumar, Abhishek; Wylie, J. A.; Bergeal, David

doi:10.4271/2019-26-0141

SAE Technical Paper Series 2019

DOI: 10.4271/2019-26-0141

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Catalyst-Based BS VI Stage 2 Emission Control Solutions for Light Duty Diesel

Satoshi Sumiya

Abhishek Kumar

J. A. Wylie

et al.

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2024

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24SIAT-0899: After-Treatment Improvement in Mahindra BS VI Stage-1 to Stage-2

Vediappan,

Mandla,

Ragunathan

et al. 2024

SAE Technical Paper Series

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<div class="section abstract"><div class="htmlview paragraph">Effective 1<sup>st</sup> April 2023, India's automotive emissions regulation has shifted from BS-VI Stage-1 to BS-VI Stage-2 standard the after-treatment systems need to demonstrate robust performance not just on the cycle, but also to demonstrate emissions for on-road Real Driving Emission (RDE) conditions. A stringent On-Board Diagnostics (OBD) strategy to monitor the real-time emission levels along with compliance Road Driving Emissions (RDEs) are focus areas for BS VI Stage-2 emission legislation. The maximum speed on MIDC is 90km/h in BS-VI Stage-1, Diesel Oxidation Catalyst (DOC)+Selective Catalyst Reduction Filter (SCRF<sup>®</sup>) was able to meet legislation at the lab, and now with the RDE cycle max speed of the vehicles under the M1 category <3.5 T will have the max permitted legal limit shall surpass 100 km/h for not around 3% of the span in the third phase of driving cycle for which max speed is up to 120 km/h. The monitoring window intended for BS-VI Stage-2 with higher operating temperatures and higher space velocity plays a major role and adds a challenge to tackling the emission on the road. In this article, Mahindra and JM/Johnson Matthey will share the strategy of EATS hardware configuration to add the underfloor (uf) Selective Catalyst Reduction Filter (SCR) in addition to SCRF<sup>®</sup> to ensure the Conformity Factor (CF) in OBD2 in RDE cycle architecture would be DOC+SCRF<sup>®</sup>+SCR and the results of work which developed RDE-compliant diesel engines and after-treatment robust solutions to meet the emissions requirement of BS VI Stage-2.</div></div>

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24SIAT-0899: After-Treatment Improvement in Mahindra BS VI Stage-1 to Stage-2

Vediappan,

Mandla,

Ragunathan

et al. 2024

SAE Technical Paper Series

View full text Add to dashboard Cite

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Catalyst-Based BS VI Stage 2 Emission Control Solutions for Light Duty Diesel

Cited by 1 publication

References 4 publications

24SIAT-0899: After-Treatment Improvement in Mahindra BS VI Stage-1 to Stage-2

24SIAT-0899: After-Treatment Improvement in Mahindra BS VI Stage-1 to Stage-2

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