System and method for detecting engine clutch delivery torque of car

摘要

Disclosed is a detecting method of engine clutch delivery torque of a vehicle including: determining, by a controller, when the position of a shift lever satisfies a detecting condition of engine clutch delivery torque; converging, by the controller, to a predetermined target speed by operating a motor without load; measuring, by the controller, motor torque without a load at the target speed and engaging the engine clutch with a control pressure above a contact point (contact point+α) according to a control logic; detecting, by the controller, motor torque including the delivery torque of the engine clutch, when the speed and the torque of the motor converge according to engagement of the engine clutch; calculating, by the controller, torque deviation by comparing the motor torque without load and the motor torque including the engine clutch delivery torque; and detecting, by the controller, a compensation factor by comparing a model value of the engine clutch delivery torque with the torque deviation.

主权项

1. A detecting system for engine clutch delivery torque of a vehicle equipped with an engine and a motor as power sources, the system comprising:
an engine clutch configured to implement an EV (electric vehicle) mode and an HEV (hybrid electric vehicle) mode by engaging and disengaging the engine with the motor; an inverter configured to operate the motor by a hybrid controller; a transmission sensor configured to detect the status of a transmission; and wherein the hybrid controller is configured to:
maintain a predetermined relative speed between the motor and the engine without load when the status of the transmission is a detecting condition for engine clutch delivery torque, by operating the motor at a target speed;engage the engine clutch with a control pressure above a contact point (contact point pressure+‘α’);measure torque of the motor including the delivery torque of the engine clutch; andcompare the difference of the torque from a basic model value, to detect the delivery torque of the engine clutch.