Patent ID: 7789796
Filing Date: 2010-09-07
Classification: B60K,B60W,Y02T,Y10T

Abstract:
1. A method for controlling an idle stop mode in a hybrid electric vehicle, comprising: performing an engine RPM lift-up control to raise an engine RPM if a deceleration is less than a medium deceleration when a speed of the hybrid electric vehicle reaches an idle stop mode entering speed such that as the engine RPM is raised, a gear changing oil pressure is increased so that a continuously variable transmission (CVT) gear ratio according to the deceleration reaches a target minimum gear ratio; and as the CVT gear ratio reaches the target minimum gear ratio, entering the idle stop mode even when the deceleration is less than the medium deceleration while a transmission control unit (TCU) does not perform a control operation for preventing the idle stop mode from being entered.