Torque based spark ignition engine and powertrain modeling

The ever-growing complexity of engine and powertrain systems integration requires new control model. Torque-based control model enables flexibility and expanding ability of the engine and powertrain control system structure. This paper describes a torque-based engine and powertrain model. Based on the the physical principle and experiments data, an engine and powertrain model for control strategy development is described. This paper considers a mean-value engine model, it incorporates throttle inlet, intake manifold intake, cylinder inlet, engine rotation dynamics and vehicle dynamics with mean-value type of fidelity that is good for control system design.