METHOD AND APPARATUS FOR CALCULATING INPUT TORQUE OF TRANSMINSSION

摘要

Disclosed are a method and a device for calculating the input torque of a transmission. According to the present invention, engine torque reflecting friction torque decreasing from power torque generated from an engine due to direct connection of an engine clutch and loss torque decreasing by the operation of the oil pump of a hydraulic pressure control device is delivered to the input torque of a transmission, thereby allowing the precise control of line pressure according to input torque calculated based on accurate engine torque information in order to improve shifting quality by obtaining safety for shifting. [Reference numerals] (1013) Drive an oil pump?; (102) Receive engine torque; (105) Calculate loss torque; (107) Engine torque - Loss torque = Input/output torque; (109) Perform shifting; (111) Loss torque = 0; (AA) Start; (BB) End