Classifications

• • 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
  • B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
  • B60L53/12—Inductive energy transfer
  • B60L53/124—Detection or removal of foreign bodies
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
  • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
  • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
  • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
  • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
  • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
  • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
  • G01V3/101—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
  • G01V3/102—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude
• • 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
  • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
  • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
• • 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
  • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
  • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
• • 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
• • 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
  • H02J7/04—Regulation of charging current or voltage
• • 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
  • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
  • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
• • 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
  • Y02T90/14—Plug-in electric vehicles

Definitions

• the invention is based on a method for operating an induction charging device, wherein in at least one method step a foreign object detection is carried out.
• the foreign object detection is carried out as a function of at least one power transmission characteristic. This can be advantageous interruptions of a
• Charging process due to a Fremdmaschineerkennung be kept low.
• long charging cycles can be achieved. It can be advantageously achieved a short charging time.
• a risk of damage to an induction charging device when carrying out a foreign object detection can be taken into account.
• an “induction charging device” is to be understood as meaning, in particular, a device for charging rechargeable battery devices, in particular rechargeable batteries.
• the device has at least one control and / or regulating unit which is at least provided for charging control and / or fix.
• Particularly preferred is to be understood in particular a charging device, which is provided in a charging operation to inductively transfer a charging energy to at least one battery device.
• a “charging mode” should be understood as meaning, in particular, an operating state in which the battery device is externally supplied with energy a device for temporarily storing electrical energy, in particular an accumulator, are understood.
• this is to be understood as meaning, in particular, a rechargeable energy store.
• a lithium-ion battery There are various conceivable to a person skilled in battery devices conceivable, but in particular should be understood as a lithium-ion battery.
• control and / or regulating unit is to be understood as meaning in particular a unit having at least one control electronics.
• Control electronics are to be understood in particular as meaning a unit having a processor unit and a memory unit as well as an operating program stored in the memory unit.
• the term "provided” should be understood to mean specially programmed, designed and / or equipped.Assuming that an object is intended for a specific function should in particular mean that the object fulfills this specific function in at least one application and / or operating state and / or performs.
• a “foreign object recognition” is to be understood in particular as recognition and / or checking of the presence of foreign objects, in particular in an environment of the induction charging device and / or the rechargeable battery device. which are arranged in a contact region between the induction charging device and a rechargeable battery device and can impair a charging process in a charging operation.
• "Foreign objects” are to be understood as meaning in particular metal and / or magnetic components, parts or other objects.
• a “power transmission characteristic” is to be understood in particular to mean a characteristic which characterizes an electromagnetic energy flow between the induction charging device and a battery device to be charged, preferably quantitatively, in a charging operation Power, an electric current in a charging coil, an applied voltage to a charging coil, a temperature of a charging coil, a recorded power of a power supply, a coupling factor between inductively coupled charging coils or another, the expert appears to be useful deskübertragungskenn birthday.
• the induction charging device preferably has at least one sensor unit at least for detecting the at least one power transmission characteristic.
• a “sensor unit” is to be understood as meaning, in particular, a unit which is intended to accommodate at least one parameter and / or one physical characteristic, the recording being active, in particular by generating and emitting an electrical measurement signal, and / or passive , as can take place in particular by detecting changes in the properties of a sensor component.
• the sensor unit is provided to detect the at least one power transmission characteristic during a charging process continuously or quasi-continuously. Furthermore, it is proposed that at least one accuracy parameter of the foreign object detection is determined in at least one method step as a function of the at least one power transmission parameter. In this way, advantageously, a simplified execution of a foreign object detection can be achieved. Interruptions of a charging process due to foreign object recognition can advantageously be kept low. Advantageously, long charging cycles can be achieved. It can be advantageously achieved a short charging time.
• An "accuracy parameter" is to be understood as meaning, in particular, a parameter which at least partially characterizes a precision of the foreign object detection. Cycles or as another, an expert appears to be useful accuracy characteristic.
• At least one execution frequency of the foreign object recognition is determined in at least one method step as a function of the at least one power transmission parameter.
• a frequency of execution of the foreign object recognition during a charging process is to be understood as an "execution frequency.”
• the execution frequency during a charging process with an average power transmission for example a power transmission between 5W and 10W
• can be compared to an execution frequency during a charging process with a high power transmission for example, a power transmission of more than 10 W.
• a execution of a foreign object detection can be completely omitted.
• the foreign object detection is carried out as a function of at least one temporal change, in particular a fluctuation amplitude and / or a gradient, of the power transmission parameter.
• a low risk of damage to an induction charging device can advantageously be achieved.
• Interruptions of a charging process due to foreign object recognition can advantageously be kept low.
• long charging cycles can be achieved. It can be advantageously achieved a short charging time.
• a "fluctuation amplitude" is to be understood as meaning, in particular, a difference between a maximum and a minimum value of a time-varying parameter.
• “Gradient” is to be understood as meaning in particular a measure of a time increase or decrease in a value of a time-varying parameter, preferably a gradient of one Tangent. Furthermore, it is proposed that in at least one method step depending on a falling below of a, in particular lower, limit value by a value of the power transmission characteristic, in particular a falling below a limit of a transmitted power and / or a current in an excitation coil, the Fremd Housingerkennung is exposed. As a result, interruptions of a charging process due to a foreign object detection can be advantageously avoided. Advantageously, long charging cycles can be achieved. It can be advantageously achieved a short charging time.
• At least one method step depending on the at least one power transmission parameter, at least one execution time duration of the foreign object detection be determined.
• interruptions of a charging process due to foreign object detection can advantageously be kept short in terms of time.
• long charging cycles can be achieved. It can be advantageously achieved a short charging time.
• a sweep frequency range and / or the number of discrete frequency points of a sweep for adapting the execution duration of the foreign object detection can be varied.
• an induction charging device in particular for carrying out a method according to the invention, proposed with at least one control and / or regulating unit, wherein the control and / or regulating unit is at least provided to perform a Fremdmaschineerkennung depending on at least one bathübertragungskenntained.
• interruptions in a charging process due to foreign object detection can advantageously be kept low.
• long charging cycles can be achieved. It can be advantageously achieved a short charging time.
• a risk of damage to an induction charging device when carrying out a foreign object recognition can be taken into account.
• control and / or regulating unit of the induction charging device is at least provided to determine at least one accuracy parameter of the foreign object detection as a function of at least one power transmission characteristic. In this way, advantageously, a simplified execution of a foreign object detection can be achieved. Interruptions of a charging process due to foreign object recognition can advantageously be kept low. Advantageously, long charging cycles can be achieved. It can be advantageously achieved a short charging time. Furthermore, it is proposed that the control and / or regulating unit of
• Induction charging device is at least provided to determine depending on the at least one power transmission characteristic at least one execution frequency of the Fremdmaschineerkennung.
• Fremd Anlagenerkennung be kept advantageously low.
• Advantageously, long charging cycles can be achieved.
• the method according to the invention and / or the induction charging device according to the invention should / should not be restricted to the application and embodiment described above.
• the method according to the invention and / or the induction charging device according to the invention can have a number deviating from a number of individual elements, components and units and method steps described herein in order to fulfill a mode of operation described herein.
• the fenced features of the induction charging device according to the invention in an analogous manner to read the process.
• values lying within the stated limits are also to be disclosed as disclosed and used as desired.
• Fig. 1 shows an induction charging in a schematic representation
• FIG. 2 shows a flow chart of a method according to the invention in a schematic representation.
• FIG. 1 shows an induction charging device 10. Furthermore, FIG. 1 shows a battery device 14 to be charged.
• the induction charging device 10 is provided to charge the battery device 14.
• the induction charging device 10 forms the primary side of a charging system 46.
• the battery device 14 to be charged is formed by a hand tool battery.
• the induction charging device 10 it is also conceivable with the induction charging device 10 other, the expert appears useful
• FIG. 1 shows the induction charging device 10 and the rechargeable battery device 14 to be charged in a charging operation.
• the rechargeable battery device 14 is set up on an upper side of a housing 16 of the induction charging device 10 and is charged wirelessly via a charging coil 18 of the induction charging device 10.
• the induction charging device 10 has a control and / or regulating unit 12.
• the induction charging device 10 has a charging electronics unit 48, which comprises the control and / or regulating unit 12.
• the charging electronics unit 48 has a resonant circuit 50.
• the oscillation circuit 50 has the charging coil 18.
• a foreign object recognition is performed in dependence on at least one power transmission characteristic. In the foreign object detection is checked whether
• Foreign objects which may affect a charging operation, between the induction charging device 10 and the rechargeable battery device 14 or just located on the induction charging device 10 or an operator or the induction charging 10 endanger.
• the foreign object recognition is carried out by a method for detecting foreign objects in the induction charging device 10 by means of the control and / or regulating unit 12 of the induction charging device 10.
• the control and / or regulating unit 12 of the induction charging device 10 is provided during a charging operation, the Fremdfecterkennung depending on perform at least one shoveübertragungskenntig.
• FIG. 2 shows a flow diagram of a method for detecting foreign objects during a charging operation of the induction charging device.
• the foreign object detection is initiated by the control and / or regulating unit 12.
• the subsequent further implementation of the foreign object detection is carried out in a further method step 32 as a function of at least one power transmission characteristic.
• the performance parameter is in particular a parameter which, in a charging operation, characterizes an electromagnetic energy flow between the induction charging device 10 and the rechargeable battery device 14 to be charged, preferably quantitatively.
• the power transmission characteristic is one between the
• Induction charging device 10 and the battery device to be charged 14 transferred electrical power, an electric current in a charging coil 18, a voltage applied to a charging coil 18 electrical voltage, a temperature of a charging coil 18, a recorded power of a power supply or the like. educated.
• the control and / or regulating unit 12 has a sensor unit 20, which is provided to continuously or quasi-continuously detect the power transmission characteristic during a charging operation of the induction charging device. To optimize the Fremd Anlagenerkennung can by means of the control and / or
• Control unit 12 from the power transmission characteristic different parameters for setting the Fremdiereerkennung be determined.
• at least one accuracy parameter for example a number of discrete frequency points and / or a number, is dependent on the at least one power transmission parameter
• At least one method step depending on the at least one power transmission parameter, at least one execution frequency, in particular a frequency of an execution of the foreign object detection during a charging process, of the foreign object detection is determined.
• the frequency of execution during a charging process with an average power transmission for example a power transmission between 5W and 10W
• a high power transmission for example a power transmission of more than 10W.
• execution of a foreign object detection can be completely omitted.
• at least one method step 38 depending on the at least one power transmission parameter, at least one temporal execution duration, in particular a time length of a sweep and / or a sweep cycle, of the foreign object detection is determined.
• the foreign object detection is carried out as a function of at least one temporal change, in particular a fluctuation amplitude and / or a gradient, of the power transmission parameter.
• a complete foreign object detection can be carried out once during the initialization of the charging process. If this was run through without error, the foreign object recognition is deactivated and the charging process is started, during which energy is removed from the inductance. Onsladevoriques 10 is transferred to the battery device 14.
• the control unit 12 monitors the charging for irregularities. If the control and / or regulating unit 12 detects a change over time, in particular a fluctuation amplitude and / or a gradient, of the power transmission characteristic, the charging process is interrupted and a foreign object detection is initiated.
• the external object detection is suspended as a function of a falling below a, in particular lower, limit value by a value of the power transmission parameter.
• the foreign object detection is carried out as a function of an exceeding of an, in particular upper, limit value by a value of the power transmission parameter.
• the implementation of the foreign object recognition of a charging process when a lower limit value is undershot is subjected to a power transmission, for example when the power transmission drops to a value below 5W. If a defined limit value of the power transmission is exceeded, the foreign object detection is used again.

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• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Physics & Mathematics (AREA)
• Remote Sensing (AREA)
• Computer Networks & Wireless Communication (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Electromagnetism (AREA)
• Environmental & Geological Engineering (AREA)
• Geology (AREA)
• General Life Sciences & Earth Sciences (AREA)
• General Physics & Mathematics (AREA)
• Geophysics (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)

Applications Claiming Priority (3)

Publications (1)

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Families Citing this family (6)

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• 2017
  • 2017-08-23 DE DE102017214741.5A patent/DE102017214741A1/de not_active Withdrawn
  • 2017-08-23 DE DE102017214747.4A patent/DE102017214747A1/de not_active Withdrawn
• 2018
  • 2018-02-01 EP EP18702688.5A patent/EP3580086A1/de not_active Withdrawn
  • 2018-02-01 JP JP2019542562A patent/JP2020506660A/ja active Pending
  • 2018-02-01 US US16/484,610 patent/US20200014249A1/en not_active Abandoned
  • 2018-02-01 RU RU2019127796A patent/RU2760067C2/ru active
  • 2018-02-01 KR KR1020197023375A patent/KR20190113822A/ko not_active Application Discontinuation
  • 2018-02-01 CN CN201880024313.7A patent/CN110494321A/zh active Pending
  • 2018-02-01 CN CN201880024325.XA patent/CN110536810A/zh active Pending
  • 2018-02-01 US US16/484,006 patent/US20200021143A1/en not_active Abandoned
  • 2018-02-01 WO PCT/EP2018/052504 patent/WO2018145987A1/de active Application Filing
  • 2018-02-01 WO PCT/EP2018/052500 patent/WO2018145986A1/de unknown

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