| CPC B60L 53/36 (2019.02) [B60L 53/37 (2019.02); G01C 21/3661 (2013.01); H02J 7/007 (2013.01); B60L 2200/18 (2013.01); G01S 19/42 (2013.01); H02J 2207/20 (2020.01)] | 17 Claims |
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1. A charging system for electric buses, comprising:
a power converter configured to receive power from an external power network to generate charging power for the electric buses;
a plurality of power rails electrically connected to the power converter and installed at a predetermined height according to a layout of a garage;
a first charging network configured to move above a floor in the garage along the electric power rails to contact the electric buses at upper sides of the electric buses;
a second charging network electrically connected to the power converter and providing a charging zone on a bottom surface of the garage by reflecting the layout of the garage to contact the electric buses parked in the charging zone; and
a station controller configured to control a charging sequence of the electric buses by analyzing position information of the electric buses and calculating a shortest movement path and a charging order of the first charging network,
wherein the first charging network includes a plurality of first charging networks,
the station controller, when the electric bus is chargeable, analyzes a position of the first charging networks and position information of the electric buses to calculate a shortest movement path of each of the plurality of first charging networks, and matches at least one electric bus parked below the shortest movement path to calculate the charging order of each of the first charging networks,
the station controller transfers a charging start control signal to the electric bus to induce a first pantograph of the electric bus to expand upward to contact the first charging network and a second pantograph of the electric bus to extend downward to contact the second charging network,
the first pantograph contacts electrically a positive terminal of a battery and the second pantograph contacts electrically a negative terminal of the battery,
during the charging of the electric bus, the first pantograph is upwardly unfolded to directly contact a positive electrode of the charging station to receive charging power, and
the second pantograph is downwardly unfolded to directly contact a negative electrode of the charging station so as to configure a closed loop path in which a charging current received from the charging station flows through the first pantograph.
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