| 摘要 |
A method and apparatus for charging the battery of an electric vehicle are provided; where charging energy is delivered from a charging station at a predetermined voltage and at a delivery frequency which is in the range of from 10 kHz up to 200 kHz. The charging energy is transferred to the vehicle through an inductive coupler, which has a primary side connected to the charging station and a secondary side mounted within the vehicle, together with a rectifier mounted in the vehicle and interposed between the secondary side and the traction battery to be charged. When the electric vehicle is connected to a charging station, it is interrogated to determine the nature of the charge controller that is on board the vehicle; and logic decisions invoking the particular mode for charging the vehicle are made depending on the nature and type of charge controller that is on board the vehicle. Thus, delivery of charging energy to the battery in the vehicle may be entirely under the control of a charge controller on board the vehicle; or, if the control module in the vehicle is less sophisticated, then delivery of chargi ng energy will be under the control of a charge control module which is present within the charging station. The value of initial charging current is therefore set either by the on board battery charging control module in the vehicle, or by the charge control module which is present in the charging station; alternatively, the initial value of charging current may be preset at the charging station. That parameter, and the amount of charging energy to b e delivered, may be established by insertion of a card into a data interface o n the charging station. Under controlled conditions, a plurality of vehicles m ay be charged at a single establishment having a plurality of charging stations , by distributing energy to any vehicle according to priority criteria to be established.
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