Patent ID: 8682518

Claim:
A shift control system for a hybrid vehicle having an engine and a motor as power sources, the system comprising: a driving condition detector which detects whether a kick-down shift-request occurs; and a hybrid control unit which determines a motor rotation speed of a target shift-speed when the kick-down shift-request is detected, determines whether the motor rotation speed satisfies a required torque, and executes a kick-down shift in EV (Electric Vehicle) mode or in HEV (Hybrid Electric Vehicle) mode according to a condition that the motor rotation speed satisfies the required torque or not; wherein the hybrid control unit executes the kick-down shift in the EV mode when the motor rotation speed of the target shift-speed is less than a standard rotation speed so that the required torque is satisfied, and then changes a driving mode to the HEV mode by engaging an engine clutch; and wherein the hybrid control unit controls an engine to start when the motor rotation speed of the target shift-speed is more than the standard rotation speed so that the required torque is not satisfied, then changes a driving mode to the HEV mode by engaging an engine clutch, and then executes the kick-down shift in the HEV mode.