Effective power management on diesel engine using electrified turbocharger.

The growing demand for improved fuel efficiency and reduced emissions in diesel engines has led to significant advancements in power management technologies. This paper presents a dual-function strategy that integrates electrified turbochargers to enhance engine performance and generate electrical power, thereby optimizing overall engine efficiency. The engine performance is enhanced with boosting mode where the electric motor accelerates the turbocharger independently of exhaust flow, effectively reducing turbo lag and provides immediate boost at low engine speeds. This feature also improves high altitude performance. Conversely, in generating mode, the electric turbocharger recovers energy from exhaust gases depending on engine operating conditions, converting it into electrical energy for battery recharging. Advanced control systems enable real-time adjustments to boost pressure and airflow in response to dynamic driving conditions, maximizing engine efficiency. Simulation studies and engine testing validate the expected benefits, demonstrating that the electrified turbocharger can significantly facilitate engine downsizing, reduce fuel consumption, and lower emissions through precise power management. These advancements align with global sustainability goals, presenting a viable solution to meet stringent environmental regulations while maintaining robust engine performance. The integration of electrified turbochargers represents a critical step towards the next generation of eco-friendly diesel engines, supporting both environmental sustainability and economic efficiency.