DEVICE FOR THE INDUCTIVE TRANSFER OF ELECTRICAL ENERGY
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Accused Products
Abstract
The invention relates to a device for the inductive transfer of electric energy from a stationary unit that has at least two similar primary inductances (1-4) to a vehicle (5) standing adjacent to said unit. The primary inductances (1-4) of the stationary unit can be supplied with electrical current independently of one another and the current supply can be individually activated or deactivated by a central control unit (12). Preferably, the device is equipped with a uniform two-dimensional arrangement (26-32, 27A-31A) of a plurality of primary inductances that are similar to one another and are in the form of a rectangular matrix (26-31). Either a dedicated output of a central current supply unit or a dedicated current supply unit (7-10) is assigned to each primary inductance. Preferably, the vehicle has several secondary inductances that are similar to one another, the dimensions and arrangement of said inductances being designed in such a way that several pairs of secondary and primary inductances overlap at any one time in at least one position of the vehicle (5A, 5B, 5C).
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Citations
25 Claims
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1-14. -14. (canceled)
- 15. Device for inductive transmission of electrical energy from a stationary unit to a vehicle standing in the vicinity hereof, wherein the stationary unit exhibits at least two primary inductors which are of the same type and which can be supplied with electrical current independently of one another, and wherein their supply of current can be activated or deactivated individually by a central control unit, wherein each primary inductor is assigned either its own output of a central current supply unit or its own current supply unit, in that the central current supply unit exhibits a measuring device or the individual current supply units each exhibit a measuring device by which either the impedance or an induced voltage can be measured at each primary inductor, in that the control unit exhibits an evaluation device for determining the distribution of the measured impedance values or voltage values of the individual primary inductors inside the stationary unit, and in that the evaluation unit controls the supply of current to the primary inductors depending on the determined distribution of the impedance or voltage.
Specification