| 초록 |
A simulation study was carried to analyze the vehicle fuel consumption on component basis. Experiments was also carried out to identify the simulation results, under FTP-75 Hot Phase driving conditions. and arbitrary driving conditions. A good quantitative agreement was obtained. Based on the simulation, fuel energy was used in pumping loss(3.7%), electric power generation(O.7%), engine friction(12.7%), engine inertia(O.7%), torque converter loss(4.6%), drivetrain friction(O.6%), road-load(9.2%), and vehicle inertiae 13.4%) under FTP-75 Hot Phase driving conditions. Using simulation program, the effects of capacity factor and idle speed on fuel consumption were estimated. A increment of capacity factor of torque converter resulted in fuel consumption improvement under FTP-75 Hot Phase driving conditions. Effect of a decrement of idle speed on flle) consumption was negligible under the identical driving conditions. {{br}} |
