Abstract: A charging apparatus for use with an electric vehicle includes a power transmission path, a switch, a first controller, a communication unit, and a second controller. The switch is disposed on the power transmission path. The communication unit is coupled to a second connection port. The first controller is coupled to the power transmission path, the switch, the second controller, and the communication unit. When the second controller receives a first request from a power management system and correspondingly notifies the first controller, the first controller switches from a first signal to a second signal to communicate with the electric vehicle and turns off the switch, and when the first controller receives a first EV notification provided from the electric vehicle, the controller turns on the switch.

Abstract: A charging system includes a charging station. The charging station includes a charging unit, an input unit, a first communication interface, and a controlling unit. The input unit receives a model number message and a destination of an electric vehicle. The first communication interface receives a residual energy quantity message and an acceptable energy message of a chargeable battery of the electric vehicle. By comparing the model number message and the destination with a database, a type of the chargeable battery and a travelable path are realized. The chargeable battery is charged according to the type of the chargeable battery, the travelable path and the residual energy quantity message until a residual energy quantity of the chargeable battery is equal to an estimated energy quantity required to drive the electric vehicle to the destination along the travelable path.

Abstract: The present invention discloses a method for assigning an representing data to be used by a remote end, by which a near end can assign an representing data to a remote end through a telecommunication network so as to enable the remote end to recognize the near end.