A circuitry for protecting against overvoltage event at a vehicle assembly of an electric vehicle, being in communication with a ground assembly as a part of a wireless power transfer system for electric vehicles is provided herein. The circuitry for protecting against overvoltage event includes: a radio frequency (RF) transmitter to repeatedly transmit a power request signal to the ground assembly, being a modulated signal having a unique identifier of the vehicle assembly; a detection circuitry to detect an overvoltage event, across an output of the vehicle assembly; a controlled switch to divert current off the output of the vehicle assembly, into a bypass circuitry, upon detection of the overvoltage event, wherein upon receiving an indication from the detection circuitry of overvoltage event, the RF transmitter stops transmitting the power request signal to the ground assembly.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
2.
METHOD AND SYSTEM FOR PROTECTING A VEHICLE ASSEMBLY AGAINST UNREQUESTED POWER TRANSFER TRANSMITTED BY A GROUND ASSEMBLY
Method and system for protecting against unrequested power transfer transmitted by a ground assembly towards a vehicle assembly are provided herein. The system may include a circuitry for protecting against unrequested power transfer transmitted by a ground assembly towards a vehicle assembly of a vehicle having at least one motor for electric propulsion, wherein the vehicle assembly is associated with the ground assembly as a part of a wireless power transfer system for electric vehicles, and wherein the vehicle assembly includes a resonance circuitry feeding a rectifier, wherein the circuitry for protection against unrequested power transfer may include: a de-tuning circuitry configured to selectively disable the operation of the resonance circuit; and a communication circuitry for requesting power transfer from the ground assembly, wherein the de-tuning circuitry is disabling the resonance circuitry whenever the communication circuitry does not request power transfer from the ground assembly.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
3.
WIRELESS POWER RECEIVER COMPRISING SHORT-CIRCUIT OPERATION CHECK AND SYSTEM
The power receiver (100) includes a rectifier circuit (200) that is provided in a high voltage region and functions as a protection circuit which shorts the power receiver coil (110) to cut off power supply from the power receiver coil, an isolated power supply (360) that is provided across the high voltage region and a low voltage region and supplies power to a drive circuit (370) of the rectifier circuit, a current sensor (340) that is provided in the low voltage region and detects a current supplied from a low-voltage storage battery (302) to the isolated power supply, and a determination unit (235) that is provided in the low voltage region and determines whether the rectifier circuit is in normal operation based on the current detected by the current sensor.
A in-vehicle power receiver (100) includes a rectifier circuit (200) that functions as a protection circuit to short-circuit a power receiver coil (110) and cut off power supply from the power receiver coil, a voltage sensor (330), and a power-receiver controller (231) that implements short-circuit control using the rectifier circuit when a detected voltage of the voltage sensor is greater than or equal to a determination threshold. The determination threshold is changeable, and the power-receiver controller decreases the determination threshold and determines whether the short-circuit control is executed normally when main switches (301H, 301L) are turned on and voltage is applied from a high-voltage storage battery (300) to the power receiver before power supply from a power transmitter coil.
A power receiver (100) includes a power-receiver communication coil (170) and a power-receiver control unit (230) that controls energization of the power-receiver communication coil (170) for supply of a power supply request signal, requesting the power transmitter coil (22) to supply power, to the power-receiver communication coil (170). The power-receiver control unit (230) executes an abnormality determination process determining whether an abnormality related to wireless power transfer has occurred, and a prevention process preventing supply of the power supply request signal to the power-receiver communication coil (170) when the abnormality related to wireless power transfer is determined to have occurred.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 3/04 - Cutting-off the power supply under fault conditions
B60L 5/00 - Current-collectors for power supply lines of electrically-propelled vehicles
B60L 5/42 - Current-collectors for power supply lines of electrically-propelled vehicles for collecting current from individual contact pieces connected to the power supply line
B60L 9/08 - Electric propulsion with power supply external to the vehicle using DC motors fed from AC supply lines
B60L 9/28 - Electric propulsion with power supply external to the vehicle using AC induction motors fed from AC supply lines polyphase motors
B60L 50/51 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
B60L 53/122 - Circuits or methods for driving the primary coil, i.e. supplying electric power to the coil
B60L 53/126 - Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
B60L 53/30 - Constructional details of charging stations
B60L 53/39 - Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer with position-responsive activation of primary coils
B60L 53/66 - Data transfer between charging stations and vehicles
B60L 53/68 - Off-site monitoring or control, e.g. remote control
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02M 7/219 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
A vehicle assembly associated with a ground assembly as a part of a wireless power transfer system for electric vehicles having a built-in test circuitry for testing a protection mechanism against overvoltage at a vehicle assembly is provided herein. The vehicle assembly may include: circuitry for testing a protection mechanism against an overvoltage event comprising a controlled switch to divert current off the output of the vehicle assembly, into a bypass circuitry, upon detection of the overvoltage event across the output of the vehicle assembly, said circuitry for testing comprising: a voltage or current source configured to apply an electrical charge into a gate of the controlled switch at a level which is sufficient to turn the controlled switch on, so as to verify that the controlled switch and the bypass circuitry serve as a shortcut of the output of the vehicle assembly.
A system for positioning wirelessly powered or charged electric vehicles is provided herein. The system includes: a plurality of partially overlapping coils forming a power receiver segment attached to the electric vehicle; a set of two or more coils located symmetrically on the power receiver segment and connected to respective rectifiers and digital voltmeters; a set of three or more coils located along a longitudinal centre of the power receiver segment and connected to connected to respective rectifiers and digital voltmeters; a computer processor configured to receive samples from the digital voltmeters and calculate, based on calibration data, a position of the electric vehicle relative to the powers transmitting coils located below the road, wherein the calibration data map voltage values representative of magnetic flux though the set of three coils and the set of fur coils, into longitudinal and lateral displacement of the receiver segment, respectively.
B60L 53/39 - Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer with position-responsive activation of primary coils
B60L 53/122 - Circuits or methods for driving the primary coil, i.e. supplying electric power to the coil
B60L 53/36 - Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
8.
METHOD AND SYSTEM FOR OPTIMIZING WIRELESS POWER TRANSMISSION TO AN ELECTRIC VEHICLE ON THE ROAD VIA ADAPTIVE FREQUENCY
A system for controlling a frequency of a wireless power signal transmitted from a plurality of power transmitting segments located along a road. The system may include: a plurality of base stations located along the road, wherein each base station may include, for each one of the segments: a power converter configured to convert an alternating current at a power distribution frequency; a phase detection circuitry, configured to detect a voltage-to-current phase of the powering signal on one of the segments that has been powered; and a frequency control circuitry, configured to control the power transmission frequency of the powering signal on the segment that has been powered, based on the voltage-to-current phase, so as to reduce an absolute value of a voltage-to-current phase to a predefined level as long as the power receiving coils of the electric vehicle are passing over the power transmitting segments that has been powered.
B60L 53/126 - Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
B60L 53/122 - Circuits or methods for driving the primary coil, i.e. supplying electric power to the coil
B60L 53/30 - Constructional details of charging stations
B60L 53/65 - Monitoring or controlling charging stations involving identification of vehicles or their battery types
B60L 53/66 - Data transfer between charging stations and vehicles
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
9.
METHOD AND SYSTEM FOR TAILORING A RECEIVER OF AN ELECTRIC VEHICLE CONFIGURED FOR WIRELESS POWER TRANSFER BASED ON ELECTRIC VEHICLE PROPERTIES
A system and method for tailoring a receiver of an electric vehicle configured for wireless power transfer based on electric vehicle properties. The electric vehicle includes a versatile receiver where the parameters affecting the resonance such as the height of the airgap and the size and positions of the receiver coils and other properties are all factored in for selecting optimal resonance properties, mainly L and C values. The suggested design allows for a versatile receiver accommodating a wide gamut of models of electric vehicle with minimal variance of electromechanical changes.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
10.
METHOD AND SYSTEM FOR CURRENT REGULATION AT A RECEIVER OF AN ELECTRIC VEHICLE CONFIGURED FOR WIRELESS POWER TRANSFER
A system and method for protecting against overvoltage in a vehicle assembly of an electric vehicle, wherein the vehicle assembly is in communication with a ground assembly as a part of a wireless power transfer system for electric vehicles, are provided herein. The system may include: a communication unit in the vehicle assembly configured to repeatedly transmit a power request signal to the ground assembly; a protection circuitry configured to: detect an overvoltage event across an output of the vehicle assembly; and divert current off the output of the vehicle assembly, into a by-pass circuitry, upon detection of the overvoltage event, wherein upon receiving an indication from the protection circuitry of the overvoltage event, the communication unit stops transmitting the power request signal to the ground assembly
B60M 1/10 - Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle
B60M 3/06 - Arrangements for consuming regenerative power
B60M 7/00 - Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
A system and method for reducing harmonics in a rectified incoming wireless power transfer signal at a receiver of an electrical vehicle are provided herein. The electrical vehicle receiver shall be equipped with a two-stage filter which shall reduce the harmonics post rectifying of the alternating current inducted at the receiver coils. Advantageously, using a specially designed capacitor, an effective reduction of the harmonics is achieved for power efficiency and electromagnetic compliance (EMC). The design is challenging due to the high amperage and frequency range of the alternating current.
B60M 1/10 - Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle
B60M 3/06 - Arrangements for consuming regenerative power
B60M 7/00 - Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
A method and system for metering electricity transmitted to electric vehicles over a wireless power transfer system. The system may include: an electric vehicle having an energy receiver; a management unit configured to drive electrical current to an energy transmitter withing a road section having a management communication unit; and a control center having a control unit, wherein the electric vehicle is operable to receive energy, at said the energy receiver, from the energy transmitter upon an identification of the electric vehicle, wherein the control unit is configured to measure an energy input into the at least management unit and further measure distribution of the energy input into the energy transmitter, and wherein the control center is configured to calculate an energy transmitted from the energy transmitter to the electric vehicle based on distribution of the energy input and identification of the electric vehicle.
B60L 53/65 - Monitoring or controlling charging stations involving identification of vehicles or their battery types
B60L 53/66 - Data transfer between charging stations and vehicles
H04W 4/44 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
13.
METHOD AND SYSTEM FOR POSITIONING A VEHICLE HAVING WIRELESS POWER TRANSFER BASED ON MAGNETIC FLUX SENSING
A system for positioning wirelessly powered or charged electrical vehicle is provided herein. The system includes: a plurality of partially overlapping coils forming a power receiver segment attached to the electrical vehicle; a set of two or more coils located symmetrically on the power receiver segment and connected to respective rectifiers and digital voltmeters; a set of three or more coils located along a longitudinal centre of the power receiver segment and connected to connected to respective rectifiers and digital voltmeters; a computer processor configured to receive samples from the digital voltmeters and calculate, based on calibration data, a position of the electrical vehicle relative to the powers transmitting coils located below the road, wherein the calibration data map voltage values representative of magnetic flux though the set of three coils and the set of fur coils, into longitudinal and lateral displacement of the receiver segment, respectively.
B60L 50/53 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
B60L 53/36 - Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
14.
METHOD AND SYSTEM FOR OPTIMIZING WIRELESS POWER TRANSMISSION TO AN ELECTRIC VEHICLE ON THE ROAD VIA ADAPTIVE FREQUENCY
A system for controlling a frequency of a wireless power signal transmitted from a plurality of power transmitting segments located along a road. The system may include: a plurality of base stations located along the road, wherein each base station may include, for each one of the segments: a power converter configured to convert an alternating current at a power distribution frequency; a phase detection circuitry, configured to detect a voltage-to- current phase of the powering signal on one of the segments that has been powered; and a frequency control circuitry, configured to control the power transmission frequency of the powering signal on the segment that has been powered, based on the voltage-to-current phase, so as to reduce an absolute value of a voltage-to-current phase to a predefined level as long as the power receiving coils of the electric vehicle are passing over the power transmitting segments that has been powered.
B60M 1/10 - Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle
B60M 7/00 - Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
A system for dynamic wireless charging of electric vehicles
of various types and sizes that includes an underground
coils infrastructure, a management unit under or above the
ground and a receiver, which minimizes the environmental
effects of using electric vehicle batteries which enables
the charging of several vehicles at the same time,
cooperative charging, increasing the driving range, reducing
the battery size, reducing charging costs and spreading the
demand for electricity from the electricity grid over time
and space; a system for static wireless electric charging of
electric vehicles of a variety of types and sizes for
electric vehicles, which includes an underground coil
infrastructure, a management unit under or above the ground
and a receiver, which enables electric vehicle charging at
home, at the depot, at the terminal, at airports and in
ports, while the electric vehicle is driving slowly and/or
in a prolonged full stop and/or while it is unloading or
loading; downloadable mobile application for drivers that
enables live monitoring of charging and provides smart
charging insights for dynamic and static wireless charging
of electric vehicles and includes a component of billing
according to the nature and scope of use; downloadable
mobile application for technicians to provide support and
resolve faults and alerts in a dynamic and static wireless
charging system for electric vehicles. Non-downloadable cloud-based charging management software,
for the use of vehicle fleets and for private use, which
includes a component of billing according to the nature and
extent of use, and allows live monitoring of dynamic and
static wireless charging of electric vehicles, fault
monitoring and follow-up of the repair status and the
service provided to drivers by technicians in connection
with the repair and which provides smart charging insights
for wireless the charging system.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
A system for dynamic wireless charging of electric vehicles
of various types and sizes that includes an underground
coils infrastructure, a management unit under or above the
ground and a receiver, which minimizes the environmental
effects of using electric vehicle batteries which enables
the charging of several vehicles at the same time,
cooperative charging, increasing the driving range, reducing
the battery size, reducing charging costs and spreading the
demand for electricity from the electricity grid over time
and space; a system for static wireless electric charging of
electric vehicles of a variety of types and sizes for
electric vehicles, which includes an underground coil
infrastructure, a management unit under or above the ground
and a receiver, which enables electric vehicle charging at
home, at the depot, at the terminal, at airports and in
ports, while the electric vehicle is driving slowly and/or
in a prolonged full stop and/or while it is unloading or
loading; downloadable mobile application for drivers that
enables live monitoring of charging and provides smart
charging insights for dynamic and static wireless charging
of electric vehicles and includes a component of billing
according to the nature and scope of use; downloadable
mobile application for technicians to provide support and
resolve faults and alerts in a dynamic and static wireless
charging system for electric vehicles. Non-downloadable cloud-based charging management software,
for the use of vehicle fleets and for private use, which
includes a component of billing according to the nature and
extent of use, and allows live monitoring of dynamic and
static wireless charging of electric vehicles, fault
monitoring and follow-up of the repair status and the
service provided to drivers by technicians in connection
with the repair and which provides smart charging insights
for wireless the charging system.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
A system comprised of hardware receiver, installed on any type of vehicle, and of hardware in the nature of a charging system management unit positioned above or underground and also including underground charging coils for the dynamic wireless charging of electric vehicles, with said system minimizing environmental effects of electric vehicle batteries use by enabling simultaneous charging of several vehicles, cooperative charging, increasing the driving range of electric vehicles, reducing the battery size required for electric vehicles, reducing charging costs, and spreading the demand for electricity from the electricity grid over time and space; A system comprised of hardware receiver, installed on any type of vehicle, and of hardware in the nature of a charging system management unit positioned above or underground and also including underground charging coils for static wireless electric charging of electric vehicles, with said system enabling electric vehicle charging at home, at a charging depot, at the terminal, at airports, and in ports, all while the electric vehicle is driving slowly or at a stop; Downloadable mobile application software for drivers that enables live monitoring of charging and provides smart charging insights for dynamic and static wireless charging of electric vehicles and manages billing information according to the nature and scope of use; Downloadable mobile application software for technicians to provide support and resolve faults and alerts in a dynamic and static wireless charging system for electric vehicles Non-downloadable cloud-based charging management software, for the use of vehicle fleets and for private use, which manages metering and billing according to the nature and extent of use and also allows live monitoring of dynamic and static wireless charging of electric vehicles, provides fault-monitoring and follow-up information regarding repair status and repair services provided to drivers by technicians, with said software also providing smart charging insights for wireless the charging system
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
A system comprised of hardware receiver, installed on any type of vehicle, and of hardware in the nature of a charging system management unit positioned above or underground and also including underground charging coils for the dynamic wireless charging of electric vehicles, with said system minimizing environmental effects of electric vehicle batteries use by enabling simultaneous charging of several vehicles, cooperative charging, increasing the driving range of electric vehicles, reducing the battery size required for electric vehicles, reducing charging costs, and spreading the demand for electricity from the electricity grid over time and space; A system comprised of hardware receiver, installed on any type of vehicle, and of hardware in the nature of a charging system management unit positioned above or underground and also including underground charging coils for static wireless electric charging of electric vehicles, with said system enabling electric vehicle charging at home, at a charging depot, at the terminal, at airports, and in ports, all while the electric vehicle is driving slowly or at a stop; Downloadable mobile application software for drivers that enables live monitoring of charging and provides smart charging insights for dynamic and static wireless charging of electric vehicles and manages billing information according to the nature and scope of use; Downloadable mobile application software for technicians to provide support and resolve faults and alerts in a dynamic and static wireless charging system for electric vehicles Non-downloadable cloud-based charging management software, for the use of vehicle fleets and for private use, which manages metering and billing according to the nature and extent of use and also allows live monitoring of dynamic and static wireless charging of electric vehicles, provides fault-monitoring and follow-up information regarding repair status and repair services provided to drivers by technicians, with said software also providing smart charging insights for wireless the charging system
19.
System and method for powering on-road electric vehicles via wireless power transfer
A system for wireless power transfer of on-road vehicles is provided herein. The system includes a plurality of base stations; a power transmission line located beneath a surface of a road having a plurality of segments, each segment having at least one pair of coils and at least one capacitor electrically connected via a switch to the coils in the segment; and at least one vehicle having at least one power receiving segment having at least two coils, connected to at least one capacitor, wherein the at least one vehicle further includes a communication transmitter configured to transmit a power requesting signal, wherein the coils of the power transmitting segment are configured to receive the power requesting signal; and wherein each of the base stations is further configured to feed a plurality of the power transmitting segments with current at a resonance frequency, responsive to the power requesting signal.
B60M 1/10 - Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle
B60M 3/06 - Arrangements for consuming regenerative power
B60M 7/00 - Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
A system and a method for validating electric vehicles in a network are provided herein. The method may include the following steps: transmitting energy from at least one road section to at least one electric vehicle; recording a magnitude of energy received by said at least one electric vehicle and transmitting a record of said magnitude of energy received for validation; recording a magnitude of energy transmitted from said at least one road section and transmitting a record of said magnitude of energy transmitted for validation; and validating energy usage of said at least one electric vehicle by periodically comparing said magnitude of energy received with said magnitude of energy transmitted to identify at least one of: component failure; and, a potential fraud. The system implements the method in a power-over-the-air network for electric vehicles.
A system for wireless power transfer of on-road vehicles is provided herein. The system includes a plurality of base stations; a power transmission line located beneath a surface of a road having a plurality of segments, each segment having at least one pair of coils and at least one capacitor electrically connected via a switch to the coils in the segment; and at least one vehicle having at least one power receiving segment having at least two coils, connected to at least one capacitor, wherein the at least one vehicle further includes a communication transmitter configured to transmit a power requesting signal, wherein the coils of the power transmitting segment are configured to receive the power requesting signal; and wherein each of the base stations is further configured to feed a plurality of the power transmitting segments with current at a resonance frequency, responsive to the power requesting signal.
B60M 7/00 - Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
A system for wireless power transfer of on-road vehicles is provided herein. The system includes a plurality of base stations; a power transmission line located beneath a surface of a road having a plurality of segments, each segment having at least one pair of coils and at least one capacitor electrically connected via a switch to the coils in the segment; and at least one vehicle having at least one power receiving segment having at least two coils, connected to at least one capacitor, wherein the at least one vehicle further includes a communication transmitter configured to transmit a power requesting signal, wherein the coils of the power transmitting segment are configured to receive the power requesting signal; and wherein each of the base stations is further configured to feed a plurality of the power transmitting segments with current at a resonance frequency, responsive to the power requesting signal.
B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
B60L 5/00 - Current-collectors for power supply lines of electrically-propelled vehicles
B60M 3/06 - Arrangements for consuming regenerative power
B60M 7/00 - Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
