Model Predictive Control for Automotive Engine Torque considering Internal Exhaust Gas Recirculation
نویسندگان
چکیده
Abstract: The present paper introduces a control oriented model based on air and burned gas flows for automotive engines with variable valves. Moreover, a predictive controller is proposed by using the obtained model. For the engines with variable valves, the intake valve lift enables the quick torque response; on the other hand, the large valves’ overlap may cause a misfiring of combustion because of the increase of the burned gas into a cylinder. Therefore, the control purpose is to track not only the torque reference but also the pressure reference of surge tank in consideration for the constraint of IEGR ratio. In the proposed control design, the mass flows through the throttle and the intake valves are designed as virtual control inputs. Effectiveness of the proposed controller is demonstrated by the SICE benchmark simulator.
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