Optimizing Catalyst Substrate Technology for Gasoline Vehicles in Indian Market Maruti Suzuki India, Limited

Format:

Book

Conference/Event

Author/Creator:

Singh, Harmeet, author.

Contributor:

Khanna, Vikram

Kumar, Amit

Mahra, Deepti

Conference Name:

Symposium on International Automotive Technology (2026) (2026-01-28 : Pune, India)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2026

Summary:

Emission norms are getting stringent day by day, posing new challenges such as stricter emission limits and compliance to Real Driving Emissions (RDE). Consequently, there is a pressing need to minimize emissions during cold start, transient phases, and high exhaust flow regions. Achieving this objective requires enhancing the efficiency of after-treatment system and optimization of engine calibration.This paper discusses the approach to improve the efficiency of after-treatment system by enhancing the substrate design features such as cell density, wall thickness, and cell shape et cetera The assessment was conducted to determine the emission performance advantages of substrates with higher cell densities of up to 900 cells per square inch (cpsi) and thinner web thicknesses down to 2.5 mil. This evaluation included both square and hexagonal cell shapes, comparing them to traditional substrates featuring 600 cpsi and 4.3 mil thickness. The evaluation has also included an assessment of potential risk factors, such as the durability of substrate walls resulting from reduced web thickness, and the clogging of cells due to high cell density over time as the vehicle accumulates mileage in the market. Thermal durability was also checked by running the extensive durability cycle on engine bench.This paper outlines the approach for optimizing the substrate design and discusses the significant findings from the evaluation results to determine the appropriate configuration for a given powertrain

Notes:

Vendor supplied data

Publisher Number:

2026-26-0212

Access Restriction:

Restricted for use by site license