The Diesel Particulate Filter Calibration- Challenges and Countermeasures Targeting the Indian Scenario

Kuldeepak Chaudhari; Raman Kumar; Prahlad Madhukar; Marcus Wolter

doi:10.4271/2021-26-0189

As vehicle emission standards are becoming increasingly stringent worldwide, the application of a Diesel Particulate Filter to trap particulate matter is state of the art in diesel engine- powered vehicles and equipment. Initially, the Diesel Particulate Filter was introduced in India with the BS6 emission implementation. A transfer of the series-proven emission technology from Europe to India is a reliable base while it requires significant adaptations towards an affordable solution for the Indian boundary conditions.

This paper explains methods used to arrive at a robust solution considering the typical Indian driving cycles, climate conditions and segment-specific demands. With catalyst protection integrated in the method and a robust model-based exhaust temperature control, a complete closed-loop approach of DPF regeneration is achieved.

This method combined with model-based soot load calibration has proven to be an effective countermeasure for DPF calibration used in various applications throughout all segments (PC, CV and OHW). It improves regeneration efficiency and results in good repeatability of temperature control, higher average DPF temperatures and shorter regeneration durations resulting in lower oil dilution.

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The Diesel Particulate Filter Calibration- Challenges and Countermeasures Targeting the Indian Scenario 2021-26-0189

SAE MOBILUS