Abstract: An apparatus for providing a distance to empty of a green vehicle includes a motor. A battery provides a driving voltage to the motor and includes a plurality of cells. A motor controller is configured to control driving and a torque of the motor. A battery manager is configured to control charge and discharge of the battery. A vehicle controller is configured to integratedly control the motor controller and the battery manager according to a state of the vehicle through a network. The vehicle controller calculates a first distance to empty (DTE) by using a past fuel efficiency, calculates a second DTE by using designated route driving information, and calculates a final DTE by using the first DTE and the second DTE.

Abstract: Disclosed is a method and a system for cutting fuel for a hybrid vehicle. More specifically, a control unit in the vehicle is configured to determine margin torque according to each driving mode, determine whether a current vehicle driving condition is a coasting driving condition, compare a engine torque and a sum of friction torque and the margin torque to determine whether the engine torque is greater than the sum of the friction torque and the margin torque and cut fuel injection to the engine when the engine torque is equal to or less than the sum of the friction torque and the margin torque.

Abstract: Disclosed is a method and a system for cutting fuel for a hybrid vehicle. More specifically, a control unit in the vehicle is configured to determine margin torque according to each driving mode, determine whether a current vehicle driving condition is a coasting driving condition, compare a engine torque and a sum of friction torque and the margin torque to determine whether the engine torque is greater than the sum of the friction torque and the margin torque and cut fuel injection to the engine when the engine torque is equal to or less than the sum of the friction torque and the margin torque.