The fuel energy injected into a vehicle is dissipated at subsystems of the vehicle including engine, transmission, drive-train, etc. In this study, a new methodology analyzing contributiveness of vehicle subsystem on fuel economy is proposed. Finding ...
The fuel energy injected into a vehicle is dissipated at subsystems of the vehicle including engine, transmission, drive-train, etc. In this study, a new methodology analyzing contributiveness of vehicle subsystem on fuel economy is proposed. Finding optimal combination of subsystems is as much important as improving efficiency of each subsystem for vehicle fuel economy. In order to achieve it, the simulation of vehicle fuel economy is performed using commercial software. Most of the subsystems are modeled for this simulation and vehicle tests are carried out to get model coefficient. The result of simulation on fuel economy is compared to that of vehicle test. Especially, the result of a simulation considered transient states shows under 1% of error comparing with a test on a chassis-dynamometer.