| 摘要 |
A method and system for controlling fuel injection for vehicles controls fuel injection amount according to change in kinetic energy of the vehicle or performs fuel cut control so as to improve fuel economy. The method may include setting a first energy line corresponding to energy loss due to running resistance when deceleration, setting a second energy line corresponding to energy loss due to engine friction, determining whether kinetic energy of the vehicle is above the first energy line after a predetermined time has elapsed, and injecting fuel by an amount generating energy corresponding to a sum of engine friction energy and braking energy in a case that the kinetic energy of the vehicle is above the first energy line. |
