Vehicle and method for improving fuel-efficiency during temporary stop

A vehicle in which is embodied a method for improving fuel-efficiency during a temporary stop, comprising:

• an engine control apparatus configured to control an engine, determine a neutral control entry D-stage target RPM and a neutral control release D-stage target RPM under a neutral control condition determined during a D-stage temporary stop, and include a memory storing a control value;
• a transmission control apparatus configured to control a transmission, perform a clutch release at a time of a neutral control entry performed and a clutch coupling at a time of a neutral release during the D-stage temporary stop, include a memory storing a control value, and mutually communicate with the engine control apparatus to provide the clutch release time and the clutch coupling time to the engine control apparatus;
• and
• a data detection apparatus configured to provide detection values detected by an engine RPM sensor, an accelerator pedal position sensor, a gear position sensor, a vehicle speed sensor, a transmission input speed sensor, a transmission output speed sensor, an acceleration sensor, a brake pressure sensor, and a cooling water temperature sensor, respectively, as input data of the engine control apparatus and the transmission control apparatus, respectively.