GB2474244A - Electric vehicle battery charger with isolator - Google Patents

Electric vehicle battery charger with isolator Download PDF

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Publication number
GB2474244A
GB2474244A GB0917505A GB0917505A GB2474244A GB 2474244 A GB2474244 A GB 2474244A GB 0917505 A GB0917505 A GB 0917505A GB 0917505 A GB0917505 A GB 0917505A GB 2474244 A GB2474244 A GB 2474244A
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GB
United Kingdom
Prior art keywords
battery
electric charger
recited
electric
charger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0917505A
Other versions
GB0917505D0 (en
GB2474244B (en
Inventor
Nigel Anthony Beamish
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Individual
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Individual
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Filing date
Publication date
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Priority to GB0917505.0A priority Critical patent/GB2474244B/en
Publication of GB0917505D0 publication Critical patent/GB0917505D0/en
Publication of GB2474244A publication Critical patent/GB2474244A/en
Application granted granted Critical
Publication of GB2474244B publication Critical patent/GB2474244B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
    • H02J7/00716—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current in response to integrated charge or discharge current
    • H02J7/0027—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/305—Communication interfaces
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H02J7/0077—
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention provides an electric charger 102 for charging a battery 110, particularly in an electric vehicle. The electric charger 102 includes an isolating unit through which an electric charge is routed to the battery 110. The isolating unit isolates the supply of electric charge to the battery 110 after detecting a drop in the electric charge, such as when an unauthorized person tampers with the connection by unplugging the cable 112 and using it to charge another battery. The charger may alert the owner in case of tampering.

Description

ELECTRIC CHARGER FOR VEHICLE BATTERIES
Background of the Invention
The present invention relates to electric chargers. More specifically, the present invention relates to electric chargers used for charging electric vehicles.
Recent developments in the automotive industry have shown an extensive focus on electric vehicles or hybrid vehicles. Electric vehicles have an on-board battery that drives the engine. Electric chargers are used for charging the batteries. Such electric chargers may be installed in garages, filling (gas) stations, hallways and garages.
An electric charger includes a cable that can be plugged into the battery, for activating the charging. However, there exists a threat of any unauthorised person unplugging the cable from the battery and using the cable for charging another battery. Such electricity thefts lead to heavy expenses for the owner of the electric charger or the person paying for the electricity.
At times, an unauthorised person may attempt to tamper with the connection of the electric charger the battery. In case the battery (vehicle) owner is not in the vicinity of the electric charger, there is no way of being informed about the tampering or the unauthorised use of the charger.
Moreover, in cases where the electric charger is installed in an outdoor premise, there exists a threat of environmental hazards such as rain and snow.
In the light of the foregoing, there is a need of an electric charger that may be secured from unauthorized access. Furthermore, there is a need of an electric charger which is capable of alerting an owner in case of tampering or unauthorised access. Moreover, there is a need for an electric charger which is well guarded from tampering and environmental hazards.
Summary of the Invention
According to a first aspect of the invention, there is provided an electric charger for charging a battery, wherein, in use, the electric charger is connected to a mains supply, comprising: a cable for supplying an electric charge from the charger to the battery; and an isolator unit connected between the mains supply and the battery for isolating the electric charger from the battery, wherein the supply of electric charge is isolated based on a drop in the electric charge.
Ideally the electric charger includes a junction box or other connector for connection for extending the length of the cable, for example along a driveway or path. In one embodiment an end plug for enabling a lockable connection with the battery is provided.
A standby unit for controlling the charging of the battery is ideally also provided for initiating a charge, for example, when a user returns to a house or garage where the charged is housed.
Ideally a timer is included for switching off the supply after a predetermined period. Alternatively a current sensor monitors a charge level of the battery and is adapted to isolate the supply when the battery is charged.
The electric charger may include a cable drum on which cable is wound and which has a switch that switches on a supply when a given length of cable is unwound from the drum.
In an alternative embodiment a switch is activated manually.
Optionally the electric charger includes a residual current device (RCD), which is arranged to trip in the event of, for example, an earth fault.
Advantageously an alarm unit is connected to the isolator unit, and generates an alarm in the event of unauthorised disconnection of the cable from the mains supply or from the battery being charged The alarm may be an alert comprising at least one of a video alert, a short message service (SMS) alert and an audio alert.
Optionally a metering device for determining the amount electric charge supplied to the battery. Such arrangements may be included in filling stations so that an amount sufficient for charging may be paid for, for example, with cash or a charge card.
Preferably the electric charger comprises a display unit for displaying at least one of the amount of electric charge supplied to the battery, cost per unit of the electric charge, cost per kilometre, cost per mile, battery condition and charging status of the battery. A means for transmitting this information, as well as the identity and location of the charging unit, may be provided so that such data can be transmitted and sorted on a remote database.
A preferred embodiment of the invention will now be described, by way of example only, and with reference to the accompanying drawings, in which:
Brief Description of the Drawings
Figure 1 is a block diagram depicting an environment for charging a battery using an electric charger, in accordance with an embodiment of the present invention; and Figure 2 is a block diagram depicting an electric charger in accordance with an embodiment of the present invention.
Detailed Description of Preferred Embodiments of the Invention Figure 1 is a block diagram depicting an environment 100 for charging a battery 110 using an electric charger 102, in accordance with an embodiment of the present invention. In various embodiments of the present invention, the battery 110 is a vehicle battery. It is understood by a person skilled in the art that the electric charger 102 is not limited to charge the battery 110 of the vehicle but to charge any battery known in the art. Also, the electric charger 102 is designed in a manner to safeguard its unauthorized usage.
As shown in Figure 1, the electric charger 102 is housed in an isolated box 104 (housing) kept at a predetermined location. The predetermined location may be inside an apartment, a hallway, a garage and the like depending on the user's preferences. The isolated box 104 protects the electric charger 102 from environmental factors such as heat, water, snow, wind, dust and the like.
The isolated box 104 may be tamper-proof and water-proof. The electric charger 102 is connected to the mains supply through a cable 108. The connection is achieved by plugging the cable 108 in the mains supply 106. In an embodiment, the mains supply 106 may be permanently connected to the electric charger 102.
At the other end, the electric charger 102 is connected to a battery 110 through an extendable cable 112. The extendable cable 112 has a plug at its distal end. In an embodiment, a tamper proof connector may be provided in place of the plug. The tamper proof connector may be any lockable plug & socket arrangement. This ensures that the tamper proof connector is rigidly connected to the battery 110. Also, the tamper proof connector avoids any inadvertent disconnection of the extendable cable 112 from the battery 110.
Further, the extendable cable 112 is wound around a drum (not shown) or similar rotating support for easy stowage. Also, trip hazards may be avoided due to such kind of stowage.
While charging the battery 110, the extendable cable 112 is unwound from the drum and the plug is inserted in the battery 110 of the vehicle. After plugging the extendable cable 112, a switch associated with the electric charger 102 is turned "ON" to supply an electric charge to the battery 110. The electric charge is continuously supplied to the battery 110 until the plug is removed from the battery 110 or the electric charger 102 is turned "OFF". On removal of the plug from the battery 110, the electric charger 102 determines a drop in the electric charge and restricts any further supply of electric charge from the mains supply 104 towards the battery 110. The flow of charge may only be reinstated by plugging the extendable cable 112 to the battery 110 and activating an enabling switch associated with the electric charger 102.
As the switch of the electric charger 102 may only be activated by an authorised user, unauthorised use of the electric charger 102 is prevented.
Figure 2 is a block diagram depicting one example of the electric charger 102, in accordance with an embodiment of the present invention. The electric charger 102 is activated by a switch 202. The switch 202 is activated manually after inserting the plug into the battery 110. In an embodiment, the switch 202 may be activated automatically. Such automation is achieved when the extendable cable 112 is unwound by a predetermined length from the drum. The predetermined length may be defined by the user according to his requirements. In various embodiments of the present invention, a junction box connection may be used to increase the length of the extended cable 112.
Once the switch 202 is activated, an electric charge is supplied from the mains supply 106 to the battery 110. The electric charge is supplied to the battery 110 through an isolator unit 204. The isolator unit 204 is activated when the plug is removed from the battery 110. In the event of removal of the plug, the isolator unit 204 isolates the mains supply 106 from the battery 110.
Unless the switch 202 is switched "ON" again, the isolator unit 204 does not permit the flow of the electric charge from the mains supply 106 to the battery 110. This prevents the use of the electric charger 102 by any unauthorized person. In an embodiment, a residual current device (RCD) 206 may be coupled with the isolator unit 204. The RCD 206 is located inside the electric charger 102. Optionally, the RCD 206 may be located near the plug associated with the extendable cable 112.
In use, the RCD 206 isolates the supply of electric current to the battery 110 from the mains supply 106 in the event of removal of the plug. After removal of the plug from the battery 110, the extendable cable 112 is wounded around the drum. The extendable cable 112 may also be wound around other rotating support for easy stowage. Trip hazards may be avoided by unwinding of the extendable cable 110.
An alert is sent to the user of the electric charger 102, in the event of removal of the plug from the battery 110. The user is alerted by means of an alarm unit 208 which is coupled with the isolator unit 204W The alarm unit 208 is activated by the isolator unit 204 on detection of removal of the plug from the battery 108. In an embodiment of the present invention, the alarm unit 208 may generate an audio alarm by means of a siren or any suitable audio device. In another embodiment of the present invention, the alarm unit may activate a camera (note shown) configured for capturing still images, burst images or a video record and relay it to the user for his monitoring. In yet another embodiment of the present invention, the alarm unit 208 may transmit an electronic message alert to the mobile phone of the user. The electronic message may be a global position system (GPS) message that may be sent to as an alert in the event of removal of the plug.
The electric charger 102 also includes a timer circuit 210. The timer circuit 210 ensures that the battery 110 is charged for a predefined period of time. In an embodiment, the timer circuit 210 is a current sensor. After ensuring that the battery 110 is fully charged, a standby unit 212 coupled to the timer circuit 210 automatically cuts off the charge provided to the battery 110. The standby unit 212 includes a charge monitoring unit 214 which monitors the level of electric charge supplied to the battery 110. Thus, the standby unit 212 facilitates in improving the efficiency of the electric charger 102 by reducing energy dissipation arising due to continuous charging and internal resistance loss. Adjacent to the standby unit 212 is provided a metering unit 214. The metering unit 214 is configured to provide an indication of the amount of electric charge consumed by the battery 110.
The indication of the amount of electric charge consumed by the battery 110 is displayed on a display unit 216. In various embodiments of the present invention the display unit 216 may be a liquid crystal display (LCD), light emitting diode (LED) display, or any other suitable display viewable to the user. The display unit 216 is also configured to display the cost of electricity per unit, the amount of electric charge delivered to the battery 110 and the percentage of status of charge in the battery 110. Further, the display unit 216 is configured to display additional information such as the condition of the battery 110, charge times, cost per kilometre mile and the like. In one embodiment of the present invention, the electric charger 102 may receive vehicle engine information through a Category 5 (CAT 5) communications cable. The information may be downloaded and displayed on the display unit 216. Alongside the display unit 216 is provided an LED indicator (not shown) on the isolated box 104. The LED indicator indicates the status of charging of the battery 110. For example, a red LED indicator indicates that the charging is in process while a green LED indicator indicates that charging is complete.
The electric charger 102 further includes an authorization unit 218 for restricting access to the electric charger 102. Any person attempting to use the electric charger may be required to enter a password or personal identification number (PIN) to activate the electric charger 102. This ensures authorized access to the electric charger 102.
In various embodiments of the present invention, the electric charger 102 along with its internal system components as depicted in Figure 2, is mounted inside the isolated box 104. The isolated box 104 may have indoor and outdoor panels over which the internal system components of the electric charger 102 may be selectively mounted.
While the preferred embodiments of the invention have been illustrated and described, it will be clear that the invention is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions and equiva'ents wi'l be apparent to those skilled in the art without departing from the spirit and scope of the invention as described in the claims. Further, it should be clearly understood that the form of the present invention described herein and shown in the figures of the accompanying drawing are illustrative only and are not intended to limit the scope of the present invention. Thus the scope of the invention should be determined by the appended claims and their legal equivalents, rather than by the examples given.

Claims (23)

  1. Claims 1. An electric charger for charging a battery, wherein, in use, the electric charger is connected to a mains supply, comprising: a cable for supplying an electric charge from the charger to the battery; and an isolator unit connected between the mains supply and the battery for isolating the electric charger from the battery, wherein the supply of electric charge is isolated based on a drop in the electric charge.
  2. 2. The electric charger as recited in claim 1 further comprising a junction box connection for extending the length of the cable.
  3. 3. The electric charger as recited in claim 1 further comprising a standby unit for controlling the charging of the battery.
  4. 4. The electric charger as recited in claim I further comprising a timer circuit for charging the battery for a predetermined amount of time.
  5. 5. The electric charger as recited in claim 3, wherein the standby unit comprises a charge monitoring unit for monitoring a charge level of the battery.
  6. 6. The electric charger as recited in claim 5, wherein the standby unit de-activates the electric charger based on the charge level of the battery.
  7. 7. The electric charger as recited in claim I, wherein the cable includes an end plug for enabling a lockable connection with the battery.
  8. 8. The electric charger as recited in claim 1, wherein the cable is wound in drum.
  9. 9. The electric charger as recited in claim 8 further comprising a switch for activating the supply of electric charge to the battery.
  10. 1O.The electric charger as recited in claim 9, wherein the switch is activated based on unwinding a predetermined length of the cable from the drum.
  11. 11.The electric charger as recited in claim 8, wherein the switch is activated manually.
  12. 12.The electric charger as recited in claim 1, wherein the isolator unit includes a residual current device (RCD).
  13. 13. The electric charger as recited in claim 1 further comprising an alarm unit connected to the isolator unit, for generating an alert based on the cable being disconnected from the mains supply.
  14. 14. The electric charger as recited in claim 13, wherein the alert comprises at least one of a video alert, a short message service (SMS) alert and an audio alert.
  15. 15.The electric charger as recited in claim I further comprising a metering device for determining the amount electric charge supplied to the battery.
  16. 16.The electric charger as recited in claim I further comprising a display unit for displaying at least one of the amount of electric charge supplied to the battery, cost per unit of the electric charge, cost per kilometre, cost per mUe, battery condition and charging status of the battery.
  17. 17.The electric charger as recited in claim 16, wherein the display unit is a liquid crystal display (LCD) unit.
  18. 18.The electric charger as recited in claim 1, wherein the electric charger is enclosed in an housing.
  19. 19.The electric charger as recited in claim 18, wherein the housing is water-proof and tamper-proof.
  20. 20. The electric charger as recited in claim 18 further comprising a light emitting diode (LED) indicator mounted over the housing, for displaying the charging status of the battery.
  21. 21. The electric charger as recited in claim 1, wherein the electric charger receives vehicle engine information through a Category 5 (CAT 5) communication cable.
  22. 22.The electric charger as recited in claim 1 further comprising an authorization unit for restricting access to the electric charger.
  23. 23.The electric charger as recited in claim I wherein the battery is a vehicle battery.
GB0917505.0A 2009-10-07 2009-10-07 Electric charger for vehicle batteries Active GB2474244B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0917505.0A GB2474244B (en) 2009-10-07 2009-10-07 Electric charger for vehicle batteries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0917505.0A GB2474244B (en) 2009-10-07 2009-10-07 Electric charger for vehicle batteries

Publications (3)

Publication Number Publication Date
GB0917505D0 GB0917505D0 (en) 2009-11-18
GB2474244A true GB2474244A (en) 2011-04-13
GB2474244B GB2474244B (en) 2014-04-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0917505.0A Active GB2474244B (en) 2009-10-07 2009-10-07 Electric charger for vehicle batteries

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GB (1) GB2474244B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2496202A (en) * 2011-11-07 2013-05-08 David John Kelly Energy saving mains interface for a battery charger
DE102014213757A1 (en) * 2014-07-15 2016-01-21 Bayerische Motoren Werke Aktiengesellschaft Anti-theft measure for charging cable
DE102017212302A1 (en) * 2017-07-18 2019-01-24 Bender Gmbh & Co. Kg Charging station with differential current monitoring for charging an electrical energy storage of an electric vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007027158A1 (en) * 2005-09-01 2007-03-08 Creative Technology Ltd A load detector for an ac-ac power supply
GB2443455A (en) * 2006-11-01 2008-05-07 Mark Beswick Battery charger with no standby power loss
GB2449665A (en) * 2007-06-01 2008-12-03 Igor Ocka Battery charger having sensing wire and relay to connect/disconnect charger to mains power supply dependent if charger is connected to battery
WO2009089249A1 (en) * 2008-01-07 2009-07-16 Coulomb Technologies, Inc. Network-controlled charging system for electric vehicles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0612541D0 (en) * 2006-06-28 2006-08-02 Davidson Paul Battery charger
DE102007002025A1 (en) * 2007-01-13 2008-07-17 Daimler Ag Vehicle for use with modular system that is equipped with combustion engine and electro motor drive, has car body chassis, and chassis opening is accessible from chassis outer side and closed by cover
GB2462677A (en) * 2008-08-20 2010-02-24 Park And Power Ltd Preventing unauthorised battery charging of electric vehicle
JP2010103003A (en) * 2008-10-24 2010-05-06 Takehiro Kusano Charging plug locking device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007027158A1 (en) * 2005-09-01 2007-03-08 Creative Technology Ltd A load detector for an ac-ac power supply
GB2443455A (en) * 2006-11-01 2008-05-07 Mark Beswick Battery charger with no standby power loss
GB2449665A (en) * 2007-06-01 2008-12-03 Igor Ocka Battery charger having sensing wire and relay to connect/disconnect charger to mains power supply dependent if charger is connected to battery
WO2009089249A1 (en) * 2008-01-07 2009-07-16 Coulomb Technologies, Inc. Network-controlled charging system for electric vehicles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2496202A (en) * 2011-11-07 2013-05-08 David John Kelly Energy saving mains interface for a battery charger
DE102014213757A1 (en) * 2014-07-15 2016-01-21 Bayerische Motoren Werke Aktiengesellschaft Anti-theft measure for charging cable
CN105313717A (en) * 2014-07-15 2016-02-10 宝马股份公司 Theft protection measure for charging cable
CN105313717B (en) * 2014-07-15 2019-09-17 宝马股份公司 Anti-theft measure for charging cable
DE102017212302A1 (en) * 2017-07-18 2019-01-24 Bender Gmbh & Co. Kg Charging station with differential current monitoring for charging an electrical energy storage of an electric vehicle
US10759297B2 (en) 2017-07-18 2020-09-01 Bender Gmbh & Co. Kg Charging station having differential current monitoring for charging an electric energy storage means of an electric vehicle
DE102017212302B4 (en) 2017-07-18 2022-01-20 Bender Gmbh & Co. Kg Charging station with residual current monitoring for charging an electrical energy store in an electric vehicle

Also Published As

Publication number Publication date
GB0917505D0 (en) 2009-11-18
GB2474244B (en) 2014-04-02

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