METHOD AND SYSTEM FOR CONTROLLING START OF HYBRID ELECTRIC VEHICLE

摘要

Disclosed are a method and a system for controlling a start of a hybrid electric vehicle including a belt connecting an engine and an integrated starter-generator. The method for controlling a start of a hybrid electric vehicle including a belt connecting an engine and an integrated starter-generator according to an exemplary embodiment of the present invention includes: measuring characteristic values of the belt and storing the characteristic values in a memory; measuring a slip torque change rate of the integrated starter-generator causing belt slip according to the measured characteristic values of the belt and storing the slip torque change rate in the memory; determining whether there is a start demand of the engine; sensing a coolant temperature of the engine when there is the start demand of the engine; matching the sensed coolant temperature to the slip torque change rate; and feedback controlling the integrated starter-generator so that the torque change rate of the integrated starter-generator may be limited within the slip torque change rate when the engine is started.