Abstract: The energy-efficient fast charging method is applicable to an energy-efficient fast charging device having a power conversion module and at least a fast chargeable energy storage device. The power conversion module obtains and converts an input power from an external power source, and produces an internal DC power. The method contains the following steps. First, whether an external energy storage device is connected is detected. Then, if the presence of the external energy storage device is not detected, the internal fast chargeable energy storage device is charged by the internal DC power output from the power conversion module. Otherwise, the external energy storage device is charged by the internal DC power output from the power conversion module and the stored power of the fast chargeable energy storage device simultaneously.

Abstract: The distributed charging system is for charging an energy storage device of an electrical vehicle operated within an operation region where a number of station or parking areas are arranged at intervals. The system contains a plurality of charging stations and fast charging devices where a charging station is provided at each station or parking area and at least a fast charging device is provided at each charging station. When the electrical vehicle is parked at a station or parking area, the electrical vehicle's energy storage device is quickly charged by the fast charging device there. Therefore, there is no additional and dedicated time spent for charging while the capacity, cost, weight, and size of the energy storage device could be reduced, making the electrical vehicle less costly, more compact, and with more extended operation time and distance.

Abstract: The energy-efficient fast charging method is applicable to an energy-efficient fast charging device having a power conversion module and at least a fast chargeable energy storage device. The power conversion module obtains and converts an input power from an external power source, and produces an internal DC power. The method contains the following steps. First, whether an external energy storage device is connected is detected. Then, if the presence of the external energy storage device is not detected, the internal fast chargeable energy storage device is charged by the internal DC power output from the power conversion module. Otherwise, the external energy storage device is charged by the internal DC power output from the power conversion module and the stored power of the fast chargeable energy storage device simultaneously.

Abstract: The distributed charging system is for charging an energy storage device of an electrical vehicle operated within an operation region where a number of station or parking areas are arranged at intervals. The system contains a plurality of charging stations and fast charging devices where a charging station is provided at each station or parking area and at least a fast charging device is provided at each charging station. When the electrical vehicle is parked at a station or parking area, the electrical vehicle's energy storage device is quickly charged by the fast charging device there. Therefore, there is no additional and dedicated time spent for charging while the capacity, cost, weight, and size of the energy storage device could be reduced, making the electrical vehicle less costly, more compact, and with more extended operation time and distance.