Device and method for controlling battery SOC of hybrid vehicle

摘要

A device and a method for controlling a battery SOC of a hybrid vehicle that utilizes a 3D map database navigation system includes: checking a gradient condition of a road ahead and soliciting feedback from the driver as to an intended driving direction, and determining whether to control to charge or discharge a battery of the hybrid vehicle in accordance with the gradient condition of the road ahead so that the predictive energy management control of the hybrid vehicle is performed even when the driver does not set the driving route using the navigation.

主权项

1. A device for controlling a battery State of Charge (SOC) of a hybrid vehicle, comprising:
a navigation system which provides a driving route and gradient information within a predetermined distance ahead; a controlling determining unit which determines whether it is required to control the battery SOC based on the information provided from the navigation system, a vehicle speed, and SOC information; a user interface which receives a feedback of a driving direction from a driver when it is determined that it is required to control the battery SOC; and a charging/discharging scheduler unit which sets a reference SOC trajectory by calculating an SOC amount based on the driving path and the gradient information within the predetermined distance ahead and charges or discharges the battery within the set reference SOC trajectory, when the feedback of the driving direction from the driver is received, wherein the controlling determining unit outputs a flag for controlling the battery SOC after receiving the feedback of the driving route from the driver when there is a crossroad in the driving route within the predetermined distance ahead.