RU2297928C1 - Method of and device to supply electric vehicles - Google Patents

Method of and device to supply electric vehicles Download PDF

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Publication number
RU2297928C1
RU2297928C1 RU2005131639/11A RU2005131639A RU2297928C1 RU 2297928 C1 RU2297928 C1 RU 2297928C1 RU 2005131639/11 A RU2005131639/11 A RU 2005131639/11A RU 2005131639 A RU2005131639 A RU 2005131639A RU 2297928 C1 RU2297928 C1 RU 2297928C1
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Russia
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electric
vehicle
voltage
current collector
resonant
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RU2005131639/11A
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Russian (ru)
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Дмитрий Семенович Стребков (RU)
Дмитрий Семенович Стребков
Алексей Иосифович Некрасов (RU)
Алексей Иосифович Некрасов
Леонид Юрьевич Юферев (RU)
Леонид Юрьевич Юферев
Александр Николаевич Кармазин (RU)
Александр Николаевич Кармазин
Олег Алексеевич Рощин (RU)
Олег Алексеевич Рощин
Василий Иванович Верютин (RU)
Василий Иванович Верютин
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Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства (ГНУ ВИЭСХ)
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Priority to RU2005131639/11A priority Critical patent/RU2297928C1/en
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Abstract

FIELD: transport engineering; electric vehicles.
SUBSTANCE: invention can be used to supply trolleybuses, electric cars, electric loaders, street cars, electric tractors, electric locomotives and other electric vehicles. Proposed method of vehicle supply provides for delivery of electric energy through high-voltage high-frequency converter and single-wire contact system to individual current collectors of vehicles. power is supplied to electric vehicle through air gap between insulated single-wire line installed I road pavement or ground near surface and current collector installed under bottom of vehicle from resonant single-wire power supply system using variable electrostatic field of 0.1-100 kHz and voltage in line of 0.5-500 kV. Voltage across current collector is reduced and converted into dc voltage, electric energy is accumulated and converter into mechanical energy to move vehicle. Device implementing the method contains power source to which frequency converter is connected, single-wire line for each traffic lane and current collectors of electric vehicles. Air gap of 0.1 - 50 m is formed between single-wire line insulated from ground and installed in road pavement or in ground near its surface and current collector mounted under bottom of vehicle. Device includes two resonant circuits, one transmitting and one receiving, and tuned to equal frequency of f0 = 0.1-100 kHz. Input of transmitting circuit is connected to frequency converter and output is connected to current collector through resonant step-up transformer, single-wire line and air gap. Current collector is made in form of thin insulated sheet made of conducting material and is installed on vehicle parallel to single-wire line.
EFFECT: improved reliability and reduced energy losses.
3 cl, 1 dwg

Description

The invention relates to methods for powering electric vehicles and can be used to power trolleybuses, electric vehicles, electric forklifts, trams, electric tractors, electric locomotives and other electric vehicles.
A known method of powering a rail electric vehicle, for example, a tram and an electric train, provides for the transmission of electric energy through a single-wire contact network through a current collector to vehicles, converting the electric energy of the network to preset values and supplying it to traction electric motors (AS USSR No. 1729843, MKI 6 B60L 9/08, BI No. 16, 1992). The disadvantage of this method of power supply of a rail vehicle is the large metal consumption of the device necessary for implementing the method, consisting of a two-wire conductive line containing a contact wire and a metal rail.
Another disadvantage is the impossibility of using this method for powering a non-rail electric vehicle, for example an electric car or a trolley bus.
A known method of powering an electric vehicle by supplying electric energy through a two-wire contact network, rod trolley current collectors to traction electric motors (AS USSR No. 1440767, MKI 6 V60L 5/34, BI No. 44, 1988).
The disadvantage of this method is the high consumption of conductive material. Another disadvantage is the low reliability of the trolley current collector, especially when moving at high speed and when changing the direction and sequence of movement.
A known method of non-contact transmission of electrical energy using electromagnetic induction. In this case, the wires of a single-phase traction line of two insulated cables connected shortly at the end of the line and connected to an alternating current substation transfer energy through an air gap to a receiver of several turns of wire forming the secondary winding of the transformer. The receiver is mounted on an electric vehicle and moved relative to the line. The alternating magnetic flux generated by the current in the line induces an electromotive force (E.D.S.) in the receiver winding through the air gap, as in a conventional transformer. For induction contactless transmission, a high frequency current of 2-20 kHz is used. For rail transport, the upper air suspension of high-frequency traction cables is used, and for rail transport, underground laying of traction cables (V.E. Rosenfeld, N.A. Staroskolsky. High-frequency non-contact electric transport. Moscow, "Transport", 1975, p. 4 -8).
A disadvantage of the known method and device for the non-contact transmission of electrical energy to a vehicle is the large losses in the traction line due to the large inductive resistance of the wires at a high frequency. Due to the high frequency in the turns of the windings of the receiver and in the cable line, significant E.D.S. self-induction, the active component of which is directed counter to the voltage of the substation that feeds the traction network. For compensation of inductive resistance and E.D.S. self-induction in the line and in the receiver consistently include capacitors. To reduce energy dissipation, a transposition is made - traction cables are crossed, while in the transposition places there are difficulties with powering the vehicle, since E.D.S. is not induced at the crossing point of the traction cables in the receiver. Due to the high cost and low efficiency a non-contact method of transferring electrical energy using electromagnetic induction, this method has not found practical use.
The closest in technical essence to the present invention is a method of powering electric vehicles and a device for its implementation by supplying power to a single-wire contact network located above each lane (nearby) of electric vehicles, connecting the specified contact network through a certain distance to the output of one or more high-voltage high-frequency electrostatic generators of free electric charges, generating and moving these electric charges poisons and the associated energy of the electric field in resonance mode through the contact network and current collectors, to the electric vehicle, and the reverse conversion of the energy of the electric field of free charges into electric AC energy, which is used to drive the vehicle.
A device that implements this method is a source of electric energy, a high-frequency converter and a high-voltage electrostatic generator of electric charges connected to a single-wire contact network consisting of many parallel wires installed above each lane of the motorway and electric vehicles with retractable current collectors, each of which has receiver-matching device, diode block, DC / AC converter connected to the bl control window and valve electric motor of an electric vehicle (US Pat. RF No. 2136515 C1, B60L 9/00, BI No. 25, 09/10/99).
Using the known method and power device for electric vehicles provides increased efficiency, reliability, longer life, reduced energy losses and multi-row movement of electric vehicles on the freeway. The disadvantage of this method is the presence of a single-wire troll that limits the ability to move the vehicle and its reliability.
The objective of the invention is to provide a method of powering electric vehicles and a device for its implementation, characterized by high reliability and low losses and providing high maneuverability of electric vehicles with multi-lane (multi-row) movement.
As a result of the use of the present invention, it becomes possible to power electric vehicles with rubber and other wheels of electrical insulating and conductive material during multi-lane movement of electric vehicles on the freeway.
The above technical result is achieved by the fact that in the method of powering electric vehicles, which provides for the supply of electric energy through a high-voltage high-frequency converter and a single-conductor contact network to individual current collectors of vehicles, the power is supplied to the electric vehicle by electrostatic induction through an air gap between an isolated single-conductor line installed in road surface or ground directly near their surface, and a current collector installed under the bottom of the electric vehicle, from a resonant single-conductor power supply system using an alternating electrostatic field with a frequency of 0.1-100 kHz and a voltage in the line of 0.5-500 kV, the voltage at the current collector is reduced, converted to a constant voltage current, accumulate electrical energy and convert electrical energy into mechanical energy of moving the vehicle.
A device that implements this method of power supply of an electric vehicle, containing a source of electric energy, to which a frequency converter is connected, and a single-conductor line for each lane and current collectors of electric vehicles, is made in the form of a resonant electric system with a frequency of 0.1-100 kHz and a voltage of a single-conductor line 0.5-500 kV with an air gap of 0.1-50 m between a single-conductor line electrically insulated from the ground installed in the road surface or in the ground directly close to the surface, and a current collector installed under the bottom of the vehicle, the device contains two resonant circuits, one transmitting and one receiving, tuned to the same frequency f 0 = 0.1-100 kHz, the input of the transmitting circuit is connected to the frequency converter, and the output through a resonant step-up transformer, a single-conductor line and an air gap to the current collector, the current collector is made in the form of a thin insulated sheet of conductive material and mounted on the vehicle in parallel with one conductor line; the input of the second receiving resonant circuit is connected to the current collector through a resonant step-down transformer, and the output through the rectifier, battery and control unit to the electric motor of the electric vehicle.
The essence of the proposed method of powering electric vehicles and a device for its implementation is illustrated by the drawing, which shows a general diagram of a device that implements the claimed method of powering electric vehicles by electrostatic induction through an air gap between a single-conductor cable line in the road surface and a current collector installed under the bottom of the vehicle.
The device in the drawing contains a source of electrical energy 1 of high frequency and a resonant electrical system consisting of two resonant circuits, transmitting 2 and receiving 3, and two resonant high-frequency transformers 4 and 5 connected by a single-conductor line 6 installed between boost 4 and step-down 5 transformers. One of the conclusions 7 of the high-voltage winding 8 of the step-down high-frequency transformer 5 is connected to a natural capacitance 9. A source of electric energy 7, a resonant circuit 2, a high-frequency transformer 4, and a single-conductor line 6 are installed stationary, and a resonant circuit 3, a high-frequency transformer 5 are mounted on the vehicle 10. The stationary and mobile parts of the resonance system are connected using an air condenser 11, one of the plates of which is made stationary in the form of a single-conductor line 6 in the road surface 12, and the second lining is made moving in the form of a flat current collector 13 installed under the bottom 14 of the vehicle 10. The distance a between the plates of the air condenser is 0.1-1 m. A single-conductor line 6 is installed in the road surface 12 under each row of movement and is equipped with electrical insulation 15. The current collector 13 is installed under the bottom of the vehicle 10 on insulators 16 with an air gap and relative to the road surface 12 and the single-conductor line 6 and is connected to the receiving resonance nym circuit 3, the output 17 of which is connected through a rectifier 18, the battery 19 and the vehicle control unit 20 to the motor 21, 10. The containers 9 as a natural isolated conductive body or housing of the vehicle can be used.
The method is implemented as follows.
A transmitting resonant circuit 2, consisting of a capacitor 22, an inductive coil 23 and a low-voltage winding 24 of a step-up transformer 4, is connected to a source of electric energy 1 of increased frequency. Electric oscillations of current and voltage in resonance mode are increased in frequency to 0.1-100 kHz and in voltage up to 0.4-500 kV and sent along a single-conductor electrically insulated line 6 along the road surface 12, along which the vehicle 10 moves.
The drawing shows two rows of motion. The directions of the charges along the single-conductor line 6 in each series of motion are shown by the + sign.
Standing waves appear in a single-conductor line in the form of antinodes and voltage and current nodes. At half-wave line length
Figure 00000002
voltage antinodes are located approximately in the middle of line 6, and current antinodes are shifted 90 ° or
Figure 00000003
relative to the antinodes of voltage and placed at the ends of the line, at the terminals 7 and 25 of the resonant transformers 4 and 5. The phase shift between the current and voltage waves leads to the appearance of free electric charges in line 6, which move along line 6 from energy source 1 to the consumer - the electric motor 21, driving the wheels 26 of the vehicle 10. Due to electrostatic induction and the use of an alternating electrostatic field through an air capacitor in the current collector 15, an electric charge is formed the poison and current that enter through the step-down transformer 5 into the receiving resonant circuit 3, which is tuned to a frequency f 0 = 0.1-100 kHz of the transmitting circuit 2, the electrical oscillations of the current and voltage in the receiving resonant circuit 3 are allocated at the resonant frequency f 0 and come through the rectifier 18, the battery 19 and the control unit 20 to the traction motor 21 of the vehicle 10.
The electric power that is transmitted through the air condenser 13 with a capacity of c to the vehicle 10 is determined by the formula:
Figure 00000004
where V is the voltage in line 6.
Taking f 0 = 5 kHz, c = 10 · 10 -9 F, V = 10 kV, we get P el = 31.4 kW.
The advantage of the proposed method for powering electric vehicles with the underground laying of a single-conductor line 6 is to free the road from poles, cables, wires and trolleys and the possibility of powering trucks and cars, buses, wheelchairs, and internal storage. The single-conductor line 6 is insulated and safe, in contrast to the bare contact wire with the trolley power supply method. The proposed method and device for power supply of electric vehicles have higher reliability compared to the trolley way of power supply due to the absence of wear and sparking with a non-contact method of electric power transmission.

Claims (2)

1. A method of powering electric vehicles, providing for the supply of electric energy through a high-voltage high-frequency converter and a single-wire contact network to individual current collectors of vehicles, characterized in that the power supply to the electric vehicle is carried out by electrostatic induction through the air gap between an isolated single-conductor line installed in the road surface or in the ground directly near the surface, and a current collector, mouth updated under the bottom of the electric vehicle, from a resonant single-conductor power supply system at a frequency of 0.1-100 kHz and a voltage in the line of 0.5-500 kV, the voltage at the current collector is reduced, converted to DC voltage, accumulated electrical energy and converted electrical energy into mechanical vehicle moving energy.
2. The power supply device of an electric vehicle, containing a source of electric energy, to which a frequency converter is connected, a single-conductor line for each lane and current collectors of electric vehicles, characterized in that the device is made in the form of a resonant electric system with a resonant frequency of 0.1-100 kHz and voltage of a single-conductor line 0.5-500 kV with an air gap of 0.1-50 m between a single-conductor line electrically insulated from earth installed in the road surface or emle in the vicinity of the surface and the susceptor, installed under the floor of the vehicle, the device comprises two resonant circuits, one transmitter and one receiver tuned to the same frequency f 0 = 0.1-100 kHz, the input of the transmitting circuit is connected to the frequency converter, and the output through the resonant step-up transformer and a single-conductor line through the air gap to the current collector, the current collector is made in the form of a thin insulated sheet of conductive material and mounted on a transport cf dstve parallel single-conductor line, a second input receiving a resonant circuit coupled to the current collector through a resonant step-down transformer, and an output from a rectifier, battery and control unit - to the motor electric vehicle.
RU2005131639/11A 2005-10-13 2005-10-13 Method of and device to supply electric vehicles RU2297928C1 (en)

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Cited By (23)

* Cited by examiner, † Cited by third party
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US8008888B2 (en) 2007-10-25 2011-08-30 Toyota Jidosha Kabushiki Kaisha Electrical powered vehicle and power feeding device for vehicle
RU2466042C1 (en) * 2008-11-07 2012-11-10 Тойота Дзидося Кабусики Кайся Vehicle power supply system, electric vehicle and power supply for vehicle
WO2013012585A1 (en) * 2011-07-21 2013-01-24 Ut-Battelle, Llc Wireless power transfer electric vehicle supply equipment installation and validation tool
RU2480354C2 (en) * 2008-07-04 2013-04-27 Бомбардир Транспортацион Гмбх System and method for electric power transfer to vehicle
RU2480355C2 (en) * 2007-09-26 2013-04-27 Сименс Акциенгезелльшафт Electric power supply system
RU2481968C2 (en) * 2008-07-04 2013-05-20 Бомбардир Транспортацион Гмбх Transmission of electric power to vehicle
RU2490146C2 (en) * 2011-10-31 2013-08-20 Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Российской академии сельскохозяйственных наук (ГНУ ВИЭСХ Россельхозакадемии) System and method for electric power contactless transfer to vehicle
RU2496659C2 (en) * 2009-07-14 2013-10-27 Кондуктикс-Вампфлер Гмбх Device for electric power inductive transmission
RU2498912C2 (en) * 2008-09-19 2013-11-20 Бомбардир Транспортацион Гмбх Inductive receipt of electric power for transport facility
RU2499693C2 (en) * 2009-09-03 2013-11-27 Кондуктикс-Вампфлер Гмбх Method and device for inductive transmission of electric power to moving using vehicle
RU2505427C2 (en) * 2011-12-28 2014-01-27 Российская академия сельскохозяйственных наук Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Российской академии сельскохозяйственных наук (ГНУ ВИЭСХ Россельхозакадемии) Contactless method of powering electric vehicles
US8798829B2 (en) 2008-11-07 2014-08-05 Toyota Jidosha Kabushiki Kaisha Power feeding system for vehicle, electrically powered vehicle and power feeding apparatus for vehicle
CN104097540A (en) * 2013-04-11 2014-10-15 陈辉 Highway for long-distance traveling of electric car
RU2549741C2 (en) * 2009-12-21 2015-04-27 Бомбардир Транспортацион Гмбх System for energy transfer to vehicle and operation method for such system
US9073442B2 (en) 2010-03-16 2015-07-07 Toyota Jidosha Kabushiki Kaisha Inductively charged vehicle with automatic positioning
US9197093B2 (en) 2010-12-24 2015-11-24 Toyota Jidosha Kabushiki Kaisha Non-contact charging system, non-contact charging method, non-contact charging type vehicle, and non-contact charging management apparatus
US9365104B2 (en) 2010-04-21 2016-06-14 Toyota Jidosha Kabushiki Kaisha Parking assist device for vehicle and electrically powered vehicle including the same
RU2591002C2 (en) * 2011-06-10 2016-07-10 Бомбардир Транспортацион Гмбх System and method for electric energy transmission to vehicle using segments of conducting structure, which can be operated independently
RU2596003C1 (en) * 2013-04-12 2016-08-27 Ниссан Мотор Ко., Лтд. Contactless power supply device
RU2605579C2 (en) * 2011-06-10 2016-12-20 Бомбардир Транспортацион Гмбх System and method for transferring electric energy to a vehicle using a plurality of segments of a conductor arrangement
US9536655B2 (en) 2010-12-01 2017-01-03 Toyota Jidosha Kabushiki Kaisha Wireless power feeding apparatus, vehicle, and method of controlling wireless power feeding system
RU2607856C2 (en) * 2012-02-17 2017-01-20 Бомбардир Транспортацион Гмбх Providing vehicle with energy using inductance coil and rectifier
RU2669241C1 (en) * 2016-09-05 2018-10-09 Тойота Дзидося Кабусики Кайся Vehicle

Cited By (33)

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RU2480355C2 (en) * 2007-09-26 2013-04-27 Сименс Акциенгезелльшафт Electric power supply system
RU2499694C2 (en) * 2007-10-25 2013-11-27 Тойота Дзидося Кабусики Кайся Electrically driven vehicle and electric power feeder for said vehicle
RU2428329C1 (en) * 2007-10-25 2011-09-10 Тойота Дзидося Кабусики Кайся Electrically driven vehicle and power feeder therefor
US8008888B2 (en) 2007-10-25 2011-08-30 Toyota Jidosha Kabushiki Kaisha Electrical powered vehicle and power feeding device for vehicle
US9024575B2 (en) 2007-10-25 2015-05-05 Toyota Jidosha Kabushiki Kaisha Electrical powered vehicle and power feeding device for vehicle
US9421868B2 (en) 2007-10-25 2016-08-23 Toyota Jidosha Kabushiki Kaisha Electrical powered vehicle and power feeding device for vehicle
US9180779B2 (en) 2007-10-25 2015-11-10 Toyota Jidosha Kabushiki Kaisha Electrical powered vehicle and power feeding device for vehicle
RU2480354C2 (en) * 2008-07-04 2013-04-27 Бомбардир Транспортацион Гмбх System and method for electric power transfer to vehicle
RU2481968C2 (en) * 2008-07-04 2013-05-20 Бомбардир Транспортацион Гмбх Transmission of electric power to vehicle
RU2498912C9 (en) * 2008-09-19 2014-02-27 Бомбардир Транспортацион Гмбх Inductive receipt of electric power for transport facility
RU2498912C2 (en) * 2008-09-19 2013-11-20 Бомбардир Транспортацион Гмбх Inductive receipt of electric power for transport facility
US9902271B2 (en) 2008-11-07 2018-02-27 Toyota Jidosha Kabushiki Kaisha Power feeding system for vehicle, electrically powered vehicle and power feeding apparatus for vehicle
RU2466042C1 (en) * 2008-11-07 2012-11-10 Тойота Дзидося Кабусики Кайся Vehicle power supply system, electric vehicle and power supply for vehicle
US8798829B2 (en) 2008-11-07 2014-08-05 Toyota Jidosha Kabushiki Kaisha Power feeding system for vehicle, electrically powered vehicle and power feeding apparatus for vehicle
US10618411B2 (en) 2008-11-07 2020-04-14 Toyota Jidosha Kabushiki Kaisha Power feeding system for vehicle, electrically powered vehicle and power feeding apparatus for vehicle
RU2496659C2 (en) * 2009-07-14 2013-10-27 Кондуктикс-Вампфлер Гмбх Device for electric power inductive transmission
RU2499693C2 (en) * 2009-09-03 2013-11-27 Кондуктикс-Вампфлер Гмбх Method and device for inductive transmission of electric power to moving using vehicle
RU2549741C2 (en) * 2009-12-21 2015-04-27 Бомбардир Транспортацион Гмбх System for energy transfer to vehicle and operation method for such system
US9981566B2 (en) 2010-03-16 2018-05-29 Toyota Jidosha Kabushiki Kaisha Inductively charged vehicle with automatic positioning
US9073442B2 (en) 2010-03-16 2015-07-07 Toyota Jidosha Kabushiki Kaisha Inductively charged vehicle with automatic positioning
US9365104B2 (en) 2010-04-21 2016-06-14 Toyota Jidosha Kabushiki Kaisha Parking assist device for vehicle and electrically powered vehicle including the same
US9536655B2 (en) 2010-12-01 2017-01-03 Toyota Jidosha Kabushiki Kaisha Wireless power feeding apparatus, vehicle, and method of controlling wireless power feeding system
US9197093B2 (en) 2010-12-24 2015-11-24 Toyota Jidosha Kabushiki Kaisha Non-contact charging system, non-contact charging method, non-contact charging type vehicle, and non-contact charging management apparatus
RU2591002C2 (en) * 2011-06-10 2016-07-10 Бомбардир Транспортацион Гмбх System and method for electric energy transmission to vehicle using segments of conducting structure, which can be operated independently
RU2605579C2 (en) * 2011-06-10 2016-12-20 Бомбардир Транспортацион Гмбх System and method for transferring electric energy to a vehicle using a plurality of segments of a conductor arrangement
US9260026B2 (en) 2011-07-21 2016-02-16 Ut-Battelle, Llc Vehicle to wireless power transfer coupling coil alignment sensor
WO2013012585A1 (en) * 2011-07-21 2013-01-24 Ut-Battelle, Llc Wireless power transfer electric vehicle supply equipment installation and validation tool
RU2490146C2 (en) * 2011-10-31 2013-08-20 Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Российской академии сельскохозяйственных наук (ГНУ ВИЭСХ Россельхозакадемии) System and method for electric power contactless transfer to vehicle
RU2505427C2 (en) * 2011-12-28 2014-01-27 Российская академия сельскохозяйственных наук Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Российской академии сельскохозяйственных наук (ГНУ ВИЭСХ Россельхозакадемии) Contactless method of powering electric vehicles
RU2607856C2 (en) * 2012-02-17 2017-01-20 Бомбардир Транспортацион Гмбх Providing vehicle with energy using inductance coil and rectifier
CN104097540A (en) * 2013-04-11 2014-10-15 陈辉 Highway for long-distance traveling of electric car
RU2596003C1 (en) * 2013-04-12 2016-08-27 Ниссан Мотор Ко., Лтд. Contactless power supply device
RU2669241C1 (en) * 2016-09-05 2018-10-09 Тойота Дзидося Кабусики Кайся Vehicle

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