WO2009138956A1 - Elektrische energieversorgungseinheit und verfahren zum laden von akkumulatoren einer elektrischen energieversorgungseinheit und elektrisches leichtfahrzeug mit elektrischer energieversorgungseinheit - Google Patents
Elektrische energieversorgungseinheit und verfahren zum laden von akkumulatoren einer elektrischen energieversorgungseinheit und elektrisches leichtfahrzeug mit elektrischer energieversorgungseinheit Download PDFInfo
- Publication number
- WO2009138956A1 WO2009138956A1 PCT/IB2009/051965 IB2009051965W WO2009138956A1 WO 2009138956 A1 WO2009138956 A1 WO 2009138956A1 IB 2009051965 W IB2009051965 W IB 2009051965W WO 2009138956 A1 WO2009138956 A1 WO 2009138956A1
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- WIPO (PCT)
- Prior art keywords
- voltage
- supply unit
- switch
- accumulator
- electrical power
- Prior art date
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Classifications
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- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
-
- 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
- B60L50/53—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
-
- 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
- B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/12—Bikes
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Definitions
- the invention relates to an electrical energy supply unit and to a method for charging accumulators of an electrical energy supply unit.
- Electrically powered engines for vehicles are often fed with high voltages, so that the energy is transmitted to the engine with the least possible transmission losses.
- the energy is stored in accumulators to provide the high voltages, they are often connected in series so that each individual accumulator provides only a portion of the total voltage.
- the vehicles have a gross mass of not more than 350 kg, without the mass of the batteries.
- These may be, for example, bicycles with auxiliary motor, wheelchairs, mopeds, mopeds or scooters, all of which have in common that they have an electric drive.
- An example of such a battery-operated electric light vehicle is shown in DE 20 2005 006684 Ul. Since the energy for the electric motor of a light vehicle must be carried while driving, special care is directed to an energy-efficient drive unit. It has been shown that the accumulators have different capacities with increasing age, so that they are charged to different degrees. As a result, on the one hand, the existing charging capacity is not fully utilized, on the other hand threaten individual accumulators overloaded and thus to be defective. For example. in US 5,726,551 a battery charger is shown in which the individual
- an electric drive system for a vehicle is provided.
- an energy source preferably a fuel cell, provided for generating a first voltage.
- a series connection of accumulators with at least a first accumulator and a second accumulator is connected.
- a transformer has a magnetizable core, magnetizable being understood to mean that the magnetic field strength of this core can be changed.
- the transformer also has a primary coil, a first secondary coil and a second secondary coil.
- the first primary coil can be connected via a primary switch switchable to the first voltage.
- a first secondary switch is provided for the parallel connection of the first secondary coil to the first accumulator.
- the electric drive system further comprises a second secondary switch for connecting the second secondary coil in parallel with the second accumulator. The first secondary switch and the second secondary switch are independently switchable.
- the electrical power supply unit is set up so that the batteries can be charged or discharged individually. In addition, it is possible to charge all accumulators simultaneously from the energy stored in the first voltage. The fact that the primary coil is connected to the first voltage, the energy of a single
- Accumulator can be transferred to the entire series connection of accumulators.
- energy can be charged from the series connection of accumulators to a single accumulator or a selection of the accumulators.
- the electrical power unit also allows energy from one of the secondary coils to another To transmit secondary coil and thus compensate for different states of charge directly. If the secondary switches each have MOS transistors, the power loss is reduced. This saves additional energy.
- the power supply device has a measuring circuit for measuring the voltage at a terminal of the primary coil or for measuring the current in the primary coil. By switching one of the secondary switches, the voltage applied to the corresponding accumulator can be measured on the primary side. Thus, the voltages across all accumulators can be measured individually by this measuring circuit without having to make individual measuring circuits on the secondary side.
- the same measuring circuit for measuring the voltage at a terminal of the primary coil or for measuring the current in the primary coil.
- Measuring circuit can be used to measure the height of the first voltage.
- a measuring circuit may be provided for measuring the voltage at a terminal of a secondary coil or the current in a secondary coil.
- the voltages applied to the primary coils, and the voltages applied to the secondary coils, can change the voltage at the terminal connected to the measuring circuit when the primary switches and secondary switches are connected.
- a selector switch is provided for selecting at least one connection from the measuring circuit to a terminal of one of the secondary coils.
- a voltage can be applied by the multiplexer a secondary coil are measured, wherein only one measuring circuit is required for the plurality of voltages.
- a measuring circuit may be provided for measuring the voltage at a terminal of a secondary coil or the current in a secondary coil.
- the voltages applied to the primary coils, and the voltages applied to the secondary coils, can change the voltage at the terminal connected to the measuring circuit when the primary switches and secondary switches are connected.
- a stack consists of one
- the generated voltage is provided.
- the voltage generated is usually very load-dependent, but the presented transformer allows direct control of the stack.
- Particularly suitable is the circuit for hydrogen fuel cells.
- a selector switch is provided for selecting at least one connection from the measuring circuit to a terminal of one of the secondary coils.
- a voltage at a secondary coil can be measured by the multiplexer, wherein only one measuring circuit is required for the plurality of voltages.
- a DC-DC converter is provided between the fuel cell and the first voltage. This is especially recommended if the Used fuel cell provides a voltage that is lower than the voltage that is most suitable for the engine. For example. represents a common one
- Methanol fuel cell a voltage of 24 V available.
- higher voltages are preferred for operating the motor, so that the energy transfer from the energy store to the motor takes place with as little loss as possible.
- the DC-DC converter thereby makes it possible to adapt the voltage to the desired operating voltage of the electric motor.
- a charging circuit is additionally provided for charging the batteries and / or for charging the fuel cell from an external electrical energy source.
- the charging circuit can, for example, from a supply network efficiently generated energy for charging the
- Accumulators or the fuel cell can be used. If additional energy is to be transported and stored in the fuel cell, it must be a reversible fuel cell.
- accumulators are each designed as lithium-ion accumulators, a lot of energy can be stored in a relatively small space. However, special care must be taken to ensure that none of the accumulators is overloaded.
- a control circuit is also included for switching the secondary switches.
- the invention is in a pedal-operated vehicle with electrical assistance, especially bicycle.
- a powered by human power drive system and an electric drive system is provided, wherein a power output of the electric Drive system is controlled in accordance with the changes of the output of the power driven by human power drive system.
- the space for the fuel is particularly limited and an energy-saving transmission of energy in the
- the invention also provides a method for charging accumulators of a vehicle electrical power supply unit according to the invention.
- an electrical power supply unit according to the invention is provided.
- the primary switch is closed and then opened again. Subsequently, the first secondary switch is closed.
- This can selectively transfer energy from the series connection of accumulators to a single accumulator. It simplifies the charging of the accumulators, since the power source supplies the first voltage. The corresponding energy can be distributed by the inventive method in a little expensive way to the individual batteries.
- the following steps are performed prior to the step of closing the primary switch:
- a step of the subsequent closing of the second secondary switch is performed instead of the step of the subsequent closing of the first secondary switch. This will charge the accumulator to which the lower voltage is applied.
- the measurement is performed such that the voltage on the first accumulator is determined by measuring the
- Voltage is measured at a terminal of the primary coil or by measuring the current in the primary coil. As a result, all voltages to the accumulator can be measured with a single measuring circuit. Compared to devices with multiple measurement circuits, there is the advantage that no production differences between the different measurement circuits can cause measurement errors.
- the energy supply system contains at least one further
- Series connection of accumulators is present, can be connected.
- the voltage can be additionally transferred from an accumulator to a single one of several series circuits, if only the voltage applied to this series circuit is too low.
- the threshold is calculated from the voltages applied to the accumulators of the series connection, whereby the accumulators are charged uniformly.
- Figure 1 is a pedal-driven vehicle
- FIG. 2 shows an electric drive system of the vehicle from FIG. 1;
- Figure 3 shows the discharge of a battery of the electric drive system
- FIG. 4 shows the signal curve for discharging the accumulator
- Figure 5 shows the charging of a battery of the electric drive system
- FIG. 6 shows the signal curves for charging the accumulator
- FIG. 7 shows a schematic diagram for measuring the states of charge of the accumulators
- FIG. 8 shows a further embodiment of an electric drive system
- Figure 9 shows the power consumption for charging and discharging of the batteries.
- FIG. 10 shows a performance comparison between a conventional and a charging method according to the invention.
- Figure 11 shows a section of the electric drive system according to another embodiment.
- Figure 1 shows a side view of the basic structure of a bicycle 1 according to the invention with pedals, which are operated by human power, and with an electric drive unit 3.
- the pedals 2 and the electric drive unit 3 both cause the movement of a chain 4 and thus of the rear wheel fifth
- the pedal-driven vehicle is an example of an electric light vehicle, but it may also be, for example, a wheelchair or a scooter.
- Figure 2 shows a circuit diagram of the electrical
- the electric drive system 3 includes an AC / DC converter 9, a transformer 12, a microprocessor 13, a DC-DC converter 14, a fuel cell 10, a voltage measuring circuit 15, a current measuring circuit 16, and a motor 17.
- the fuel cell 10 the example.
- Methanol fuel cell is generated, generates a voltage U B of 24 V.
- the DC-DC converter 14 generates from this voltage, the so-called first voltage Ul of 40 V, which is applied between a node K and the mass 36. This first voltage Ul is also applied to the motor 17, so that he drives the vehicle at a torque request.
- the voltage measuring circuit 15 Also connected to the first voltage Ul is the voltage measuring circuit 15, which also contains circuits for energy management.
- Voltage measuring circuit 15 measures the first voltage Ul and receives information about the expected consumption. In accordance with the magnitude of the first voltage Ul and the amount of the expected consumption, the voltage measuring circuit 15 drives the fuel cell 10 to increase the voltage Ul.
- the energy provided by the fuel cell 10 is stored in the series connection of the accumulators Cl to Cn.
- a first terminal of the accumulator Cl is connected to the ground 36, while its second terminal is connected to the first terminal of the second accumulator C2.
- a second terminal of the second accumulator C2 is connected to the first terminal of the accumulator C3, followed by the series of remaining accumulators.
- the number of accumulators n 10 so that each of the accumulators Cl to Cn stores the electric charge at a voltage of 4 V each.
- the transformer 12 has a magnetizable core 11. To this core 11, a primary coil Np is wound, which has 90 windings in the embodiment. A first terminal Al of the primary coil Np is connected to the node K, while a second terminal A2 of the primary coil is connected to a first terminal of a primary switch SpI, whose second terminal is connected to the ground 36 connected is.
- the primary switch SpI also has a switching input. Depending on this switching input, a connection between the first connection and the second connection is closed or opened.
- the transformer 12 also has n secondary coils.
- the first secondary coil Nl, the second secondary coil N2, the third secondary coil N3, and the n-th secondary coil N n are explicitly located.
- These secondary coils Nl to Nn each have three windings which are placed around the core 11.
- the core 11 is magnetizable and serves to transfer energy from the primary coil Np to a secondary coil or to a plurality of the secondary coils Nl to Nn.
- Each of the secondary coils can be connected in parallel with one of the accumulators C1 to Cn.
- the secondary coils Nl to Nn each have a first and a second terminal, which are located at one end of the entirety of the turns.
- the first terminal of a secondary coil is connected to the second terminal of an accumulator, while the second terminal of the secondary coil to a first terminal of a
- Secondary switch is connected, the second terminal is connected to the first terminal of the accumulator.
- a switching input of the secondary switch controls whether the electrical connection of the first terminal to the second terminal of the secondary switch is closed.
- the second terminal of the first accumulator Cl is connected to the first terminal of the first coil Nl, whose second terminal is connected to the first terminal of the first switch Sl.
- the second connection of the switch Sl is with connected to the first terminal of the accumulator Cl.
- the second terminal of the second accumulator C2 is connected to the first terminal of the second secondary coil N2.
- the first terminal of the second switch S2 is connected to the second terminal of the second secondary coil N2 and its second terminal is connected to the first terminal of the second accumulator C2.
- the connections between the accumulators, secondary coils and switches takes place in the same way for the remaining accumulators C3 to Cn.
- the microcontroller 13 controls the switches SpI and Sl to Sn of the transformer 12 respectively. By closing one of the secondary switches Sl to Sn, a secondary coil is connected in parallel with an accumulator.
- the rechargeable batteries can also be charged by the charging circuit 9, which is connected to a plug with an external AC mains, for example, of 110 or 230 V.
- the charging switch SL1 is closed, whereby the series circuit of charging switch SLl and charging circuit 11 is connected to the series circuit of accumulators Cl to Cn, which are thereby charged.
- the fuel cell 10 is turned off. This charging is useful when power from the outlet is cheaper than the energy from the fuel cell.
- FIG. 3 illustrates the discharging process of one of the accumulators in two phases. To the right of the accumulators C1 to C6, respectively, the charge states of the accumulators are shown. The accumulators Cl, C3, C4 and C6 are each 90% charged, the second accumulator C2 is charged to 70%, while the fifth accumulator C5 is charged to 100%. The fifth accumulator C5 threatens to become defective when the 100% is exceeded.
- the state of charge of the individual accumulators C1 to C6 was measured by the microprocessor 13, in each case by closing a secondary switch S1 to Sn. Subsequently, the voltage at the second terminal A2 of the primary coil is measured, from which it is concluded that the charge states of the individual accumulators C1 to C6.
- FIG. 4 shows selected signal forms of the voltages and currents from FIG. 3.
- the signal profiles are shown for a period t c y c i e of 40 ⁇ s.
- the period is divided into a secondary phase PS, a primary phase PP and a break.
- the primary switch SP1 and the fifth secondary switch S5 are each formed as NMOS transistors. Their respective connection is closed when the voltage at their control input exceeds 2V.
- the fifth secondary switch S5 is closed by applying a voltage of 5 V at the gate of the fifth secondary switch S5. This increases the current IDS through the fifth
- Secondary coil N5 from 0 A to about 18 A. As a result, energy is transferred to the core 11.
- the voltage at the gate of the fifth switch S5 is reduced to 0V.
- the voltage at the gate of the primary switch SPl is increased from 0 to 5 V, so that the primary switch SPl is closed.
- FIG. 5 illustrates the charging of one of the accumulators in two phases.
- the accumulators C1 to C6 are charged in the same way in the first phase as during the first phase in FIG. 3.
- the control circuit has recognized that the second
- the method for selectively charging the secondary battery C2 is started.
- the first primary switch SP1 is closed, resulting in a voltage drop across the primary coil NP.
- the current generated thereby causes a change in the magnetic field in the core 11, whereby energy is transferred into the core 11.
- the primary switch SP1 is first opened before the second secondary switch S2 is closed.
- the second secondary coil N2 is connected in parallel to the second accumulator C2.
- This discharge current 12 causes the second accumulator C2 to be charged to a value 70% + x of the charge capacity.
- Figure 6 shows the waveforms at selected nodes during the two phases shown in Figure 5.
- the period t c y c i e is divided into a primary phase, a secondary phase and a pause, which follow one after the other.
- the gate of the primary switch SPl is driven with a voltage of 5 V, so that the
- Figure 7 shows the circuit for measuring the charge capacities of the accumulators Cl to Cn.
- the microcontroller 13 selectively sequentially controls the secondary switches S1, S2, S3 to Sn to turn them on one by one for a short time each.
- a voltage in one of the secondary coils Nl to Nn is generated, which causes a change in the voltage at the second terminal A2 of the primary coil Np.
- the voltage is applied to the input of the low-pass filter 22 whose output is connected to the input ADCin of the Microcontroller 13 is connected.
- This input is the input of an analog-to-digital converter, with the aid of which the filtered voltage is first converted analogously and then further processed digitally.
- the voltage at the second terminal A2 of the primary coil NP is greater or smaller.
- the voltages across the accumulators Cl to Cn are measured and compared. If one of the voltages is greater than 5% of the average of all voltages, the corresponding accumulator is discharged. If, on the other hand, the voltage at one of the accumulators is less than 5% of the mean value of all the voltages present across the accumulators, this accumulator is charged. As a result, it is ensured during all charging and discharging processes that the accumulators are each charged approximately the same, which prevents overcharging of an accumulator and the accumulators are charged uniformly.
- the voltages are again measured and the accumulators selectively charged or discharged as needed.
- a block of ten accumulators shown in FIG. 2 has a capacity of 10 to 20 Ah.
- the transformer is about
- FIG. 8 shows a further embodiment of a transformer. About the core 11 in addition a tertiary coil Nhv is wound. It is thus possible to transfer the energy also to a further series connection of accumulators.
- a series connection of accumulators is also referred to below as a block.
- energy can be transferred from the primary coil Np to the tertiary coil Nhv or vice versa.
- energy can also be switched from the secondary coils N1 to Nn to the tertiary coil Nhv.
- Figure 9 shows an embodiment with two blocks 120 and 121, each having a series circuit of accumulators Cl to Cn, as well as parallel connected transformer 12.
- the block 120 is connected with its negative pole to the ground 36 and with its positive pole to the negative
- Block 120 provides a voltage U120 while block 121 provides a voltage U121.
- the two voltages U120 and U121 add up to the first voltage Ul.
- the primary coils Np serve to transfer energy from an accumulator to an entire block 120 or 121.
- the block 121 includes a tertiary switch StI, a secondary coil NtI, and a diode D1.
- the first terminal of the tertiary switch StI is connected to the ground 36, while its second terminal is connected to a first terminal of the tertiary coil NtI whose second terminal is connected to the anode of the diode Dl.
- the cathode of the diode is connected to the node K.
- the tertiary switch St2 the tertiary coil Nt2 and the diode D2 are also interconnected in series connection.
- a first terminal of the switch St2 is connected to ground, its second terminal is connected to a first terminal of the tertiary coils Nt2.
- Connection of the tertiary coil Nt2 is connected to the anode of the diode D2 whose cathode is at the potential of the voltage Ul.
- FIG. 10 shows a comparison of the power consumption of a charging circuit known from the prior art with the presented active charging circuit.
- the individual accumulators have a target voltage of 3.6 V.
- the charging circuit marked with I has a series connection of resistors whose connection nodes are selectively connected to a terminal of a rechargeable battery.
- Power loss for charging and discharging of the accumulators is correspondingly large, so that a power consumption of 18.5 W was simulated, 18 W being due to the actual recharging process and 0.5 W consumed by the control circuit.
- the charging circuit shown with II corresponds to one of the above-presented active charging circuit of an electric drive system.
- the power consumption for the active charging circuit is 2 W, with again 0.5 W to the control circuit, which is realized in the microcontroller substantially eliminated.
- Figure 11 shows a section of the electric drive system according to another embodiment.
- the series connection of accumulators Cl to Cn, the secondary coils Sl bi Sn and the secondary coils Nl to Nn are shown, as they are known from for example Figure 2.
- n: 1 multiplexer is provided which switches one of the intermediate nodes between the capacitors C 1 to Cn to the input of the low-pass filter 22 whose output is connected to the input ADCin of the microprocessor 13. The measurement takes place in the microprocessor 13 in the same way as in the exemplary embodiment according to FIG. 7.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011509073A JP2011524155A (ja) | 2008-05-13 | 2009-05-13 | 電源ユニット、電源ユニットの蓄電池を充電する方法、及び、電源ユニット付きの軽量電気車両 |
CN2009801274839A CN102089179A (zh) | 2008-05-13 | 2009-05-13 | 电力供应单元、为电力供应单元的蓄电池以及具有电力供应单元的轻型电动车进行充电的方法 |
EP09746250A EP2285618A1 (de) | 2008-05-13 | 2009-05-13 | Elektrische energieversorgungseinheit und verfahren zum laden von akkumulatoren einer elektrischen energieversorgungseinheit und elektrisches leichtfahrzeug mit elektrischer energieversorgungseinheit |
US12/992,896 US20110155494A1 (en) | 2008-05-13 | 2009-05-13 | Electrical power supply unit and method for charging accumulators of an electric power supply unit and light electric vehicle with electric power supply unit |
AU2009247599A AU2009247599A1 (en) | 2008-05-13 | 2009-05-13 | Electric energy supply unit and method for charging batteries of an electrical energy supply unit and electrical light-weight vehicle with electrical energy supply unit |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008023291.2 | 2008-05-13 | ||
DE102008023291A DE102008023291A1 (de) | 2008-05-13 | 2008-05-13 | Elektrisches Leichtfahrzeug mit elektrischer Energieversorgungseinheit und Verfahren zum Laden und Entladen von Akkumulatoren eines elektrischen Leichtfahrzeugs |
DE102008023292.0 | 2008-05-13 | ||
DE102008023292A DE102008023292A1 (de) | 2008-05-13 | 2008-05-13 | Elektrische Energieversorgungseinheit und Verfahren zum Laden und Entladen von Akkumulatoren einer elektrischen Energieversorgungseinheit |
Publications (1)
Publication Number | Publication Date |
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WO2009138956A1 true WO2009138956A1 (de) | 2009-11-19 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/IB2009/051965 WO2009138956A1 (de) | 2008-05-13 | 2009-05-13 | Elektrische energieversorgungseinheit und verfahren zum laden von akkumulatoren einer elektrischen energieversorgungseinheit und elektrisches leichtfahrzeug mit elektrischer energieversorgungseinheit |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110155494A1 (de) |
EP (1) | EP2285618A1 (de) |
JP (1) | JP2011524155A (de) |
CN (1) | CN102089179A (de) |
AU (1) | AU2009247599A1 (de) |
WO (1) | WO2009138956A1 (de) |
Cited By (2)
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JP2011223750A (ja) * | 2010-04-09 | 2011-11-04 | Ihi Corp | 電源装置及び電圧調整方法 |
CN103262333A (zh) * | 2011-03-25 | 2013-08-21 | 宝马股份公司 | 电池系统 |
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Publication number | Priority date | Publication date | Assignee | Title |
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FR2973964B1 (fr) * | 2011-04-11 | 2013-05-10 | Renault Sa | Dispositif et procede d'equilibrage de cellules d'une batterie |
US8901895B2 (en) * | 2011-08-09 | 2014-12-02 | Caterpillar Global Mining Llc | Stored energy discharge apparatus and method |
CN103931076A (zh) * | 2011-09-02 | 2014-07-16 | 波士顿电力公司 | 用于平衡电池中的单元的方法 |
KR101947888B1 (ko) * | 2017-01-09 | 2019-02-14 | 현대자동차주식회사 | 연료전지 차량의 에너지 공급 제어방법 및 제어시스템 |
CN110932357A (zh) * | 2019-12-16 | 2020-03-27 | 珠海格力电器股份有限公司 | 储能装置 |
TWI823694B (zh) * | 2021-12-30 | 2023-11-21 | 財團法人工業技術研究院 | 供電裝置及應用其之供電方法 |
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WO2007048386A2 (de) * | 2005-10-28 | 2007-05-03 | Temic Automotive Electric Motors Gmbh | Verfahren zum laden eines energiespeichers |
DE102005056232A1 (de) * | 2005-11-25 | 2007-05-31 | Bayerische Motoren Werke Ag | Mehrspannungsbordnetz für ein Kraftfahrzeug und Verfahren zum Betrieb desselben |
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2009
- 2009-05-13 US US12/992,896 patent/US20110155494A1/en not_active Abandoned
- 2009-05-13 AU AU2009247599A patent/AU2009247599A1/en not_active Abandoned
- 2009-05-13 EP EP09746250A patent/EP2285618A1/de not_active Withdrawn
- 2009-05-13 CN CN2009801274839A patent/CN102089179A/zh active Pending
- 2009-05-13 JP JP2011509073A patent/JP2011524155A/ja not_active Withdrawn
- 2009-05-13 WO PCT/IB2009/051965 patent/WO2009138956A1/de active Application Filing
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WO2006100264A2 (de) * | 2005-03-24 | 2006-09-28 | Siemens Vdo Automotive Ag | Vorrichtung und verfahren zum ladungsausgleich von in reihe angeordneten einzelnen zellen eines energiespeichers |
WO2007048386A2 (de) * | 2005-10-28 | 2007-05-03 | Temic Automotive Electric Motors Gmbh | Verfahren zum laden eines energiespeichers |
DE102005056232A1 (de) * | 2005-11-25 | 2007-05-31 | Bayerische Motoren Werke Ag | Mehrspannungsbordnetz für ein Kraftfahrzeug und Verfahren zum Betrieb desselben |
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JP2011223750A (ja) * | 2010-04-09 | 2011-11-04 | Ihi Corp | 電源装置及び電圧調整方法 |
CN103262333A (zh) * | 2011-03-25 | 2013-08-21 | 宝马股份公司 | 电池系统 |
US10046654B2 (en) | 2011-03-25 | 2018-08-14 | Bayerische Motoren Werke Aktiengesellschaft | Battery system |
Also Published As
Publication number | Publication date |
---|---|
AU2009247599A1 (en) | 2009-11-19 |
US20110155494A1 (en) | 2011-06-30 |
CN102089179A (zh) | 2011-06-08 |
JP2011524155A (ja) | 2011-08-25 |
EP2285618A1 (de) | 2011-02-23 |
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