Wireless electrical charging system and method of operating same
First Claim
1. An electrical charging system to electrically charge an battery of a vehicle, comprising:
- a primary charging system having a power transmitter configured to provide energy, an off-vehicle inductive coil in electrical communication with the power transmitter and disposed external to the vehicle, an on-vehicle inductive coil disposed on the vehicle, and configured to receive a portion of the energy wirelessly transmitted from the off-vehicle inductive coil, an electrical signal shaping device in electrical communication with the on-vehicle inductive coil to electrically shape the portion of the received energy and electrically transmit electrically-shaped energy to electrically charge the battery, and an alignment means for positioning the vehicle relative to the off-vehicle inductive coil of the energy coupling arrangement such that the on-vehicle inductive coil is aligned with the off-vehicle inductive coil such that the portion of the wirelessly energy received by on-vehicle inductive coil is at least 75% of the wirelessly energy transmitted by the off on-vehicle inductive coil; and
a secondary charging system distinct from the primary charging system in communication with the electrical signal shaping device, wherein the electrical charging system prevents the primary system from electrically charging the battery when the secondary system is electrically charging the battery.
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Accused Products
Abstract
An electrical charging system configured to charge a battery includes a power transmitter, an energy coupling arrangement, an electrical signal shaping device including a controller, and an alignment means. The arrangement includes a first inductive coil disposed external to the vehicle and a second inductive coil attached with the vehicle. The alignment means communicates with the vehicle to ensure repeatable vehicle positioning so that the second inductive coil is positioned relative to the first inductive coil so that the second inductive coil receives the energy produced by the power transmitter wirelessly transmitted from the first inductive coil. The energy received by the second inductive coil is electrically shaped by the electrical signal shaping device and further transmitted through the electrical signal shaping device as controlled by the controller to charge the battery. Methods for transmitting energy through the electrical charging system to charge the battery are also presented.
15 Citations
10 Claims
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1. An electrical charging system to electrically charge an battery of a vehicle, comprising:
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a primary charging system having a power transmitter configured to provide energy, an off-vehicle inductive coil in electrical communication with the power transmitter and disposed external to the vehicle, an on-vehicle inductive coil disposed on the vehicle, and configured to receive a portion of the energy wirelessly transmitted from the off-vehicle inductive coil, an electrical signal shaping device in electrical communication with the on-vehicle inductive coil to electrically shape the portion of the received energy and electrically transmit electrically-shaped energy to electrically charge the battery, and an alignment means for positioning the vehicle relative to the off-vehicle inductive coil of the energy coupling arrangement such that the on-vehicle inductive coil is aligned with the off-vehicle inductive coil such that the portion of the wirelessly energy received by on-vehicle inductive coil is at least 75% of the wirelessly energy transmitted by the off on-vehicle inductive coil; and a secondary charging system distinct from the primary charging system in communication with the electrical signal shaping device, wherein the electrical charging system prevents the primary system from electrically charging the battery when the secondary system is electrically charging the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification