Browse Publications Technical Papers 2019-01-1207
2019-04-02

Equivalent Consumption Minimization Strategy for a Power Split Supercharger 2019-01-1207

Low voltage hybridization (<60 V) supports engine start/stop, regenerative braking, and constrained torque assist/regeneration at a low cost. This work studies the potential benefits of a novel hybrid system, called a power split supercharger (PSS). A 9 kW motor is shared between boosting the engine or providing hybrid functionalities, allowing it to couple with a small engine and still support good acceleration. However, the PSS operation is limited to only one of the parallel hybrid or boosting modes at each time instance. In this work an equivalent consumption minimization strategy (ECMS) is developed to select the PSS mode and the motor torque during hybrid mode. The PSS operation is simulated over standard EPA drive cycles with an engine mean value model that captures detailed air path and PSS dynamics. The results show that on the combined cycle the PSS improves the vehicle fuel economy by around 20% compared to a vehicle with a turbocharged engine, which is more than 90% of the fuel economy improvement previously predicted through a dynamic programming global fuel economy optimization.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Supercharger Air Hybrid Vehicle

2010-01-0822

View Details

TECHNICAL PAPER

Advances in Accumulator Car Design

972645

View Details

TECHNICAL PAPER

Coupling of a KERS Powertrain and a 4 Litre Gasoline Engine for Improved Fuel Economy in a Full Size Car

2010-01-2218

View Details

X