Application of Advanced Controls in Diesel Hybrid Electric Vehicle Powertrain
By Francis Assadian
In the recent years, a tremendous amount of research has been carried out in the field of energy management for Hybrid Electric Vehicles (HEVs). When optimal control approaches for energy management purposes are utilized to maximize fuel economy and minimize emissions, their solutions are calculated off-line and stored in state dependent look-up-tables for on-board vehicle implementation. The principal common drawbacks of all these energy management approaches are consideration of drivability as an afterthought and lack of robustness.
In this presentation, an overview of the diesel engine torque management concept is provided. Furthermore, the importance and design of robust feedback control in the challenging application of Hybrid Electric Vehicle (HEV) energy management is discussed. The HEV dynamics is coupled with interactions between internal combustion engine and electric motor. Moreover, it is subjected to parametric uncertainties (engine lag, rotational moment of inertia, and damping), un-modeled dynamics (combustion delay) and unmeasurable exogenous disturbances (engine torque loss and clutch torque). The benefits of a robust multivariable design for this application are revealed.
Date(s) - 12/04/2014
4:00 pm - 5:00 pm
1062 Bainer Classroom