Start-stop (ISG) system and method for controlling the same

Start-stop (ISG) system comprising a vehicle information receiving means (110), receives the vehicle information from the outside, and a control device (120) comprising a ISG operation logic (122) received using the from the vehicle information receiving means (110) vehicle information determines whether a predetermined idle stop condition is satisfied or not by performing an idling stop when the predetermined idle stop condition is satisfied is determined using the vehicle information after performing the idling stop, if a predetermined restart condition of a motor (130) is satisfied or not, and the engine (130) restarts when the predetermined restarting condition of the engine (130) is satisfied, and a ISG deactivation determination logic (124), which is the number of determinations that the predetermined idle stop condition is not satisfied, the number of idling stop, and the number of provisions that ei ne execution time of the idle stop is smaller than a predetermined Leerlaufstoppverweilzeit (B) is stored, based on the stored number of determinations that the predetermined idle stop condition is not satisfied, stops the stored number of idle, and the stored number of determinations that the execution time of the is idle stop is smaller than the predetermined Leerlaufstoppverweilzeit, determines whether a predetermined ISG deactivation condition is satisfied or not, and the ISG operation logic (122) is disabled when the predetermined ISG deactivation condition is fulfilled.