System and method for compensation of turbo lag in hybrid vehicles

A hybrid system, comprising:

• an engine having a turbocharger;
• an engine controller operatively coupled to the engine;
• an eMachine;
• a hybrid controller operatively coupled to the eMachine and in communication with the engine controller;
• wherein the hybrid controller is configured to:
• determine a zero boost power limit of the engine;
• receive torque curve information from the engine controller;
• determine a torque curve power limit of the engine from said torque curve information;
• monitor a current power of the engine and a current maximum available power of the engine;
• and
• determine a dynamic response model of the engine based on said monitoring, said model providing an estimation of the engine output power over time as the turbocharger contributes to the output power of the engine.

A method of operating a hybrid vehicle using a hybrid controller, comprising:

• receiving a driver output torque request using the hybrid controller;
• and
• determining a zero boost power limit of an engine of the hybrid vehicle, said engine including a turbocharger;
• determining a torque curve power limit of the engine, said torque curve power limit based upon a maximum available power the engine can produce;
• monitoring a current power of the engine and the maximum available power of the engine;
• using the hybrid controller, operating the hybrid vehicle such that the collective output power of an engine and an eMachine of the hybrid vehicle is automatically limited to a turbo-equivalent power limit corresponding to said driver output torque request, said turbo-equivalent power limit representing the power limit of the engine acting alone.