ROADWAY POWERED ELECTRIC VEHICLE SYSTEM
First Claim
Patent Images
1. An electric vehicle inductive power system comprising:
- a primary conductive path associated with a vehicle surface,a plurality of power transmission modules in or on a roadway inductively coupled to the primary conductive path, the or each power transmission module being capable of supplying power inductively to at least one electric vehicle when the at least one electric vehicle is on the vehicle surface in a region of that power transmission module.
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Abstract
A roadway powered electric vehicle system includes a power supply (101) which makes power available inductively to one or more modules (111) provided in or under a roadway. Modules (111) make a magnetic field selectively available to one or more vehicles travelling over the roadway corresponding to the location of the vehicle. The presence or strength of the magnetic field provided on the roadway may be dependent upon the vehicle type or category.
106 Citations
28 Claims
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1. An electric vehicle inductive power system comprising:
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a primary conductive path associated with a vehicle surface, a plurality of power transmission modules in or on a roadway inductively coupled to the primary conductive path, the or each power transmission module being capable of supplying power inductively to at least one electric vehicle when the at least one electric vehicle is on the vehicle surface in a region of that power transmission module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 25, 26, 27)
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13. An electric vehicle inductive power system comprising:
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a plurality of power transmission modules in or on a vehicle surface, each power transmission module being capable of supplying power inductively to at least one electric vehicle when the at least one electric vehicle is on the vehicle surface in a region of that power transmission module, a controller to selectively allow each power transmission module to make inductive power available to the electric vehicle when the electric vehicle is sufficiently near the power transmission module to receive power therefrom and energise adjacent power transmission modules in phase.
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14. An electric vehicle inductive power system comprising:
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a plurality of power transmission modules in or on a vehicle surface, each power transmission module being capable of supplying power inductively to at least one electric vehicle when the at least one electric vehicle is on the vehicle surface in a region of that power transmission module, a controller to allow each power transmission module to vary a quantity of inductive power made available to the at least one electric vehicle when the at least one electric vehicle is sufficiently near the power transmission module to receive power therefrom. - View Dependent Claims (15, 16, 17, 18, 19, 20, 28)
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21. A power transmission module for an electric vehicle inductive power system comprising a plurality of coils adapted to be energised in a phase relationship to provide a magnetic field.
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22. A roadway unit for a electric vehicle inductive power system, the unit comprising:
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an upper surface; at least one coil of electrically conductive material beneath the upper surface and configured in use to provide a magnetic field extending above the upper surface; and connection means for receiving power to energise the at least one coil of electrically conductive material.
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23. (canceled)
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24. (canceled)
Specification