| 摘要 |
PURPOSE: A control method of hybrid vehicle is provided to enhance control precision of motor torque and reduce production processing time and cost of vehicle using resolver. CONSTITUTION: A control method of hybrid vehicle comprises a step of determining offset candidate value which determines offset candidate value of resolver sensing rotational phase of driving motor based on fixed data; a step of zero current control level which controls zero current of driving motor; a step of voltage sensing which senses voltage generated from driving motor; a step of computing mean value which computes mean value of voltage value sensed in the step of sensing voltage value; and a step of calculating final offset value which calculate the final offset value using offset candidate value and mean value. In a step of selecting offset candidate value stage, an offset candidate value is a middle value of minimum value and maximum value of predetermined data. In a step of selecting offset candidate value, off set candidate value is a mean value of fixed data. In a step of controlling zero current of driving motor, i shaft current(Id) and d-axis current(Iq) generated from the driving motor are controlled to 0. A controlling method of hybrid vehicle also comprises a step of rotating driving motor by engine and preventing torque outputted from engine or driving motor being delivered to driving wheel. [Reference numerals] (AA) Final offset value; (S400) Start; (S410) Selecting a middle value from offset values as an offset candidate value(α^-*); (S420) Zero current controlling after applying the offset candidate value(id=iq=0); (S430) Normal state?; (S440) Obtaining the average value of Vd, Vq at N sampling points; (S460) End |
