Modeling and Control of a Hybrid Electric Vehicle With an Electrically Assisted Turbocharger

摘要: This paper investigates the suitability of using an electrically assisted turbocharger in a hybrid electric vehicle (HEV) with turbocharged engine, based on fuel economy and acceleration performance. system has two machines, i.e., traction motor boost coupled to shaft turbocharger, offers additional control variable energy management problem amount electrical (e-boost) reduce turbolag. The task optimal controller now becomes manifold: deciding torque split between engine motor, power gear number. A quasi-static model parallel HEV is derived, method turbolag predefined map for permissible proposed. Dynamic programming (DP) used solve problem. To find out tradeoff onboard strategy calculated constraint maximum total power. circumstances which it advantageous use are discussed. Furthermore, influence powertrain components' size analyzed, specifically maximizing performance, by scaling displacement volume different sizes turbochargers keeping constant, nominal values. robustness this modeling approach also been verified.