Morgan, Lewis & Bockius LLP
Apparatus and method for estimating torque of engine clutch in hybrid electric vehicle
An apparatus and method for accurately estimating the transfer torque of an engine clutch provided between an engine and a motor in a hybrid electric vehicle, may include a forward estimation device configured for determining a first estimate of engine clutch transfer torque using engine torque information, a reverse estimation device configured for determining a second estimate of the engine clutch transfer torque using a drive system model including wheels, a transmission, and a motor and using wheel speed information, a weight determination device configured for determining a weight based on brake input by a driver and whether predetermined devices in the vehicle are operated, and an estimate combination determination device configured for determining a final estimate of the engine clutch transfer torque as a value combined by applying a weight to the determined first estimate and the determined second estimate.
Kia Motors Corporation Hyundai Motor Company
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Jeong Soo Ji Won Young Joon Youn Kwang Sung Jae
Eo Oh Chang Jung Kim