McDermott Will & Emery LLP
Non-uniform displacement engine control system and method having transient state control mode
A non-uniform displacement engine control system having a transient state control mode includes a non-uniform displacement engine including a plurality of cylinders, the cylinders including at least two sizes of cylinders having different displacements, a motor connected to a driving shaft of the engine, a battery for supplying electrical energy to the motor, and a motor control unit for controlling the motor, wherein the motor control unit controls the motor such that a sum of engine torque and motor torque in explosion strokes of each cylinder is uniform by compensating for a difference in torque caused by the cylinders having different displacements, and the motor control unit has a transient state control mode for additionally applying offset torque to predetermined motor torque at a time of rapid acceleration or rapid deceleration.
HYUNDAI MOTOR COMPANY
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Yeon Bok Jeong Soo Youn Kwang Young Joon Sung Jae
Kim Eo Jung Chang Kim