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
  • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
  • B60L15/007—Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
  • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
  • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
  • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
• • 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
  • B60L50/00—Electric propulsion with power supplied within the vehicle
  • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
• • 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
  • B60L50/00—Electric propulsion with power supplied within the vehicle
  • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
  • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
  • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
• • 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
  • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
  • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
  • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
• • 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
  • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
  • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
  • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
  • B60L58/19—Switching between serial connection and parallel connection of battery modules
• • 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
  • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
  • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
  • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
  • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal 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
  • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
  • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
  • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
  • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/61—Types of temperature control
  • H01M10/613—Cooling or keeping cold
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
  • H01M10/625—Vehicles
• • 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
• • 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
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using 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
  • Y02T10/64—Electric machine technologies in electromobility
• • 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

Definitions

• the present invention relates to a battery with integrated pulse inverter and an electric motor vehicle with such a battery.
• Battery systems will be used. In order to meet the voltage and available power requirements of a particular application, a large number of battery cells are connected in series. Since the power provided by such a battery must flow through all the battery cells and a battery cell can only conduct a limited current, battery cells are often additionally connected in parallel in order to increase the maximum current. This can be done either by providing multiple cell wraps within a battery cell housing or by externally interconnecting battery cells. It is, however,
• FIG. 1 The schematic diagram of a conventional electric drive system, as used for example in electric and hybrid vehicles or in stationary applications such as in the rotor blade adjustment of wind turbines is shown in Fig. 1.
• a battery 10 is connected to a
• Capacitor 1 1 is buffered.
• a pulse inverter 12 which in each case via two switchable semiconductor valves and two diodes at three outputs against each other
• the capacitance of the capacitor 1 1 must be large enough to the voltage in the DC link for a
• FIG. 2 shows the battery 10 of FIG. 1 in a more detailed block diagram.
• a variety of battery cells are in series as well as optional in addition
• a charging and disconnecting device 16 is connected between the positive pole of the battery cells and a positive battery terminal 14.
• a charging and disconnecting device 16 is connected between the positive pole of the battery cells and a positive battery terminal 14.
• a separating device 17 can additionally be connected between the negative pole of the battery cells and a negative battery terminal 15.
• the separating and charging device 16 and the separating device 17 each include a contactor 18 and 19, respectively, which are provided to disconnect the battery cells from the battery terminals in order to disconnect the battery terminals from voltage. Because of the high
• a charging contactor 20 with a charging resistor 20 connected in series with the charging contactor 20 is provided in the charging and disconnecting device 16.
• the charging resistor 21 limits a charging current for the capacitor 1 1 when the battery is connected to the DC link.
• the contactor 18 is initially left open and only the charging contactor 20 is closed.
• the contactor 19 can be closed and
• the charging contactor 20 are opened.
• the contactors 18, 19 and the charging contactor 20 increase the cost of a battery 10 is not insignificant, since high demands are placed on their reliability and the currents to be led by them. Disclosure of the invention
• the battery comprises a pulse inverter, which is integrated in the battery and has at least one first and one second input and at least one output.
• a pulse inverter which is integrated in the battery and has at least one first and one second input and at least one output.
• Pulse inverter connected to the positive battery pole or the negative battery pole.
• the invention thus counteracts a trend to integrate the pulse inverter in the electric drive motor and so let the drive motor appear from the outside as a DC motor, which directly with a
• Buffer capacitor and a battery can be connected.
• the integration of the pulse inverter into the battery has the advantage that the contactors provided in the prior art can be omitted, because the high DC voltage of the battery cell string is no longer accessible from outside the battery. Instead of opening the contactors according to the prior art, the output of the pulse inverter can simply be switched to high impedance, whereby without additional components of the output of
• Pulse inverter is connected, a possibly existing
• Buffer capacitor basically have the voltage of the battery cell string, so that even the charging contactor can be omitted. If such a buffer capacitor is provided, it preferably has a first capacitor terminal connected to the positive battery pole and a second capacitor terminal connected to the negative battery pole and is likewise integrated in the battery.
• the pulse inverter may have n outputs, where n is a natural number greater than 1.
• the pulse inverter is formed at each of Outputs to generate and output a phase-shifted with respect to the other outputs sinusoidal voltage.
• the number n is preferably 3, in order to provide a suitable interface to those customary in the art
• the battery can have n battery cell strings, the pulse inverter having n pairs of inputs, of which in each case one pair with the positive or negative battery pole of an associated one of the n
• Battery cell strands is connected. Instead of a single battery cell string and DC intermediate circuit thus resulting as many
• DC voltage intermediate circuits, as outputs of the pulse inverter are provided.
• buffer capacitors can be smaller or completely eliminated.
• the capacity of the battery is divided into several independent battery cell strings, whereby it is no longer compensating currents between the otherwise parallel
• the pulse inverter can n first semiconductor valves and n second
• the battery may also comprise 2 * n diodes, one of which is connected in antiparallel to one of the n first or n second semiconductor valves.
• Such pulse inverters can, for example, in a known manner by
• Pulse width modulation can be controlled.
• the battery may include a cooling device configured to cool both the battery cells and the pulse inverter.
• Pulse inverter is integrated into the battery, eliminating the additional expense for the cooling of each pulse inverter and battery cells.
• Control units for the battery (cell balancing, loading and unloading,
• the battery cells are lithium-ion battery cells.
• Lithium-ion battery cells have the advantages of a high cell voltage and a particularly high capacity per volume.
• a second aspect of the invention relates to a motor vehicle with an electric drive motor for driving the motor vehicle and one with the
• Figure 1 shows an electrical drive system according to the prior art
• Figure 2 is a block diagram of a battery according to the prior art
• Figure 3 shows a first embodiment of the invention
• Figure 4 shows a second embodiment of the invention.
• FIG. 3 shows a first embodiment of the invention.
• a battery string 31 a buffer capacitor 32 and a pulse inverter 33 are integrated, with any contactors for separating the positive and negative pole of the battery string are omitted.
• the pulse inverter 33 is advantageously designed to switch all its outputs high impedance, if
• the battery 30 exchanged and thus from one to the
• Pulse inverter 33 connected drive motor or the like to be separated. In this way, the battery 30 is completely free of voltage from the outside, so that there is no danger potential.
• FIG 4 shows a second embodiment of the invention.
• the battery 40 has a plurality of battery strings, in the example shown three battery strings 41 -1, 41 -2, 41 -3.
• the battery 40 could also have two or more than three battery strings.
• the number of three battery strings is advantageous because it standardizes the simple connection of the battery 40
• the pulse inverter 43 here dissects into as many parts 43-1, 43-2, 43-3 as battery strings 41 -1, 41 -2, 41 -3 are provided. In each case one of the parts 43-1, 43-2, 43-3 is connected to a battery string 41 -1, 41 -2, 41 -3. Due to the much lower load of each battery string 41 -1, 41 -2, 41 -3 through a portion 43-1, 43-2, 43-3 of the pulse inverter 43 can in the shown
• each part 43-1, 43-2, 43-3 of the pulse inverter 43 contains two
• the semiconductor valves are preferably controlled by pulse width modulation by a control unit.
• pulse width modulation by a control unit.
• any desired forms of pulse inverters can be used.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Mechanical Engineering (AREA)
• Transportation (AREA)
• Life Sciences & Earth Sciences (AREA)
• Sustainable Development (AREA)
• Sustainable Energy (AREA)
• General Chemical & Material Sciences (AREA)
• Electrochemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Chemical & Material Sciences (AREA)
• Manufacturing & Machinery (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=44625319

Family Applications (1)

Country Status (6)

Families Citing this family (4)

Family Cites Families (23)

• 2010
  • 2010-04-16 DE DE102010027856.4A patent/DE102010027856B4/de active Active
• 2011
  • 2011-02-18 EP EP11707118A patent/EP2558328A2/de not_active Withdrawn
  • 2011-02-18 CN CN201180019269.9A patent/CN102844221B/zh active Active
  • 2011-02-18 KR KR1020127029980A patent/KR101451855B1/ko active IP Right Grant
  • 2011-02-18 US US13/641,456 patent/US20130200694A1/en not_active Abandoned
  • 2011-02-18 WO PCT/EP2011/052410 patent/WO2011128140A2/de active Application Filing

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