Patent ID: 8190317
Filing Date: 2012-05-29
Classification: B60K,B60L,B60W,Y02T,Y10S,Y10T

Abstract:
1. A mode change control method of a hybrid vehicle, the method comprising: (a) comparing a transmission input speed with an engine idle speed, when a mode change from EV to HEV is required; (d) applying a maximum clutch pressure, when the delta RPM, which is a difference between the engine speed and a motor speed, is reduced below a predetermined synchronization reference value until a predetermined reference time elapses, thus completing the EV to HEV mode change, wherein the predetermined synchronization reference value is a threshold value which is used to determine that speeds of both sides of the clutch have been synchronized and the predetermined reference time is a time threshold value for a predetermined delay after applying the maximum clutch pressure.