Investigation of two-stage split-injection strategies for a Dieseline fuelled PPCI engine

- Single and two-stage injection strategies were studied in a Dieseline fuelled PPCI engine.
- Quantitative effects of injection parameters on emissions were found by Taguchi-DOE.
- Premixing process was improved by using optimised two-stage split-injection.
- Two-stage split-injection was proven effective for reducing NOx and PM simultaneously.