• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method and a device (1) for charging batteries (10), in particular lead-acid batteries, with a predetermined charge end voltage (ULs). To achieve the most efficient and gentle charging of the battery (10) and increase the life of the battery (10), it is provided that the state of charge of the battery (10) is detected before charging, and the battery (10) during the charging process with a charging current (10). IL) or a charging voltage (UL) regulated to increase the charging voltage (UL) during a predetermined charging time (t 'charging) between a charge start voltage (ULA) and the charge end voltage (ULs).
    公开号:AT513335A1
    申请号:T50382/2012
    申请日:2012-09-13
    公开日:2014-03-15
    发明作者:Juergen Binder；David Eitelsebner
    申请人:Fronius Int Gmbh；
    IPC主号:
    专利说明:

    1
    The invention relates to a method and a device for charging batteries, in particular lead-acid batteries, with a predetermined charge end voltage.
    In principle, the subject invention is suitable for charging a variety of rechargeable batteries, such as lead-acid batteries, lithium batteries, nickel-metal hydride (NiMH) batteries and many more. In lead-acid batteries, as used for example for electrically driven vehicles, the charging method according to the invention and the charging device according to the invention is because of the high dependence of the internal resistance of such batteries from the state of charge, however, particularly advantageous.
    In electrically operated vehicles or means of transport, such as so-called industrial trucks (stackers, pallet trucks, etc.), which are often used in stratified operation, a regular charge of the batteries between the operating or shift times is required. Usually, the batteries are charged regardless of their state of charge. The internal resistance of batteries, especially those of lead-acid batteries, has a strong dependence on the respective state of charge due to the chemical processes in the cells of the battery. In particular, the internal resistance at low charge of the battery is higher, has a minimum at a medium state of charge and then increases again depending on the state of charge. In addition, the internal resistance of batteries also strongly depends on the operating temperature and the age of the battery. Usual battery charging procedures take no account of the respective state of charge of the battery and the current internal resistance, which is why no optimal and gentle charging of the battery results and thus the life of the battery is reduced. Often, the batteries are charged with a constant charge current. For example, EP 2 244 329 A1 describes a charging method for charging a battery of an uninterruptible power supply, the charging parameters being adapted correspondingly dynamically in the event of temperature changes and the battery age. During charging with a constant charge current at a discharged battery initially the internal resistance of the battery is large, which is why it comes to an increased heating of the battery and as a result to the aging of the same.
    Improvements can be made if the current charge voltage of the battery is considered during the charging process. For example, WO 96/16460 A1 or DE 10 2009 051 731 A1 describe such battery charging methods and devices.
    In particular, when loading the batteries of industrial trucks is usually a defined charging time for charging the batteries between the individual working layers of different layer models available. The fact that neither the current state of charge nor the age of the battery is taken into account, it comes regularly to excessive heating of the battery and thus to increased aging (Arrhenius law). The running in the battery chemical reactions are therefore not optimally utilized.
    The object of the present invention is therefore to provide a method and a device for charging a battery, in particular lead-acid battery, by which the efficiency of the charge and thus the efficiency can be increased and the life of the battery can be extended. In particular, an adequate charge of the battery should be made possible with sufficient charging time. Disadvantages of known charging systems should be prevented or at least reduced.
    The object of the invention is achieved by an above-mentioned method for charging a battery, wherein before charging the state of charge of the battery is detected, and the battery is charged during the charging process with a charging current or a charging voltage, which is regulated so that the Charge voltage is increased during a predetermined charging time between a charge starting voltage according to the state of charge of the battery and the end-of-charge voltage. Before the actual 3/34 3
    Charging so the current state of charge of the battery is determined and then adapted the charging current or the charging voltage to this state of charge of the battery and the set or predetermined charging time. Instead of being charged with constant charging current regardless of the state of charge of the battery, the method according to the invention takes account of the actual state of charge of the battery and the possible charging time and adapts the charge accordingly to these two parameters. Characterized in that the increase of the charging voltage between the charging start voltage and the charging voltage of the battery during the charging time by appropriate control of the charging current or the charging voltage is taken indirectly on the current internal resistance of the battery consideration. Thus, a gentle charge of the battery under optimal utilization of the available charging time. As a result, there is only a minimal heating of the battery and thus a minimization of aging, whereby the life of the battery can be increased. By the method according to the invention increases in the charging efficiency in the range between 5 and 15% can be achieved. The process is relatively easy to implement. In particular, modern battery chargers with integrated microprocessors for controlling the charging processes and corresponding control accuracy can essentially be converted by mere software updates accordingly. In the simplest case, the charge start voltage may correspond to the no-load voltage of the battery or to a voltage that the battery has after undergoing a process before performing the charging process, for example, a depolarization process.
    Advantageously, the charging current or the charging voltage is regulated such that the charging voltage is increased linearly during the charging time between the charging start voltage and the charging end voltage. This enables a simple realization of the charging method by generating a ramp of the charging voltage between the charging starting voltage and the charging end voltage over the predetermined charging time. For example, if the battery is more charged at the beginning, so if it has a higher voltage, the slope of the voltage ramp is reduced, but still essentially utilizes the full charge time. Because the voltage ramp by appropriate control of the charging current or 4/34 4
    Charging voltage is realized, there is also an automatic adjustment to the respective internal resistance of the battery. Deviations from the linear progression of the charging voltage can be advantageous for certain applications and possibly further increase efficiency. The control can also provide that the voltage ramp is divided into a plurality of partial ramps with different pitch, for example, to compensate for the occurrence of too high a charging current in the phase of the minimum internal resistance of the battery.
    If the charging current or the charging voltage is controlled such that the charging voltage is continuously increased during the charging time, virtually no measurement of the internal resistance of the battery needs to be carried out, but only the voltage ramp during the charging time can be generated by appropriate control of the charging current or the charging voltage. Increasing the charging voltage over the charging time is usually continuous, but could also be performed in discrete steps.
    Instead of a continuous increase in the charging voltage of the charging current or the charging voltage during the charging time can be increased gradually, being measured by means of current and voltage pulses, the internal resistance of the battery and the charging current or the charging voltage to the measured internal resistance is adjusted accordingly. With such a batch charging method, the actual state of the battery can be better considered and the charge can be made with optimum efficiency. In principle, the charging process can be effected both by impressed current pulses and by impressed voltage pulses, wherein the resulting charging voltage is increased during the predetermined charging time between the charging starting voltage in accordance with the state of charge of the battery and the charging end voltage. In the pulse pauses, the internal resistance of the battery is measured. When impressing current pulses, this can be done by measuring the voltage response that results in reducing the current value to a predetermined value or zero.
    According to a feature of the invention, a message is output when the charging current necessary to achieve the charging voltage during the charging time 5/34 5 is above a maximum possible charging current. If the charging current is insufficient for the specified charging time, the battery would not be able to be fully charged during this charging time. By the message the user can take care of it and for example increase the loading time accordingly.
    It is advantageous if a corresponding lower limit value for the charging time is displayed, within which the charging of the battery with the maximum possible charging current is possible until the charging end voltage is reached. By displaying the lower charging time limit, the user knows in which minimum time the battery can be available again in fully charged condition. This is in particular in the current use of batteries in a shift operation, for example when used in industrial trucks, of relevance.
    The state of charge of the battery can be determined in the simplest case by measuring the current open circuit voltage. The current no-load voltage may then be used as a charge start voltage, or methods may be used to prepare the battery for charging (eg, a depolarization method) and then use the resulting voltage of the battery as the charge start voltage. Instead of measuring the current no-load voltage for determining the state of charge of the battery, this can also be carried out via acid density determination, ampere-hour balancing or impedance measurement.
    Advantages can be achieved when the battery is depolarized prior to charging when the open circuit voltage is below a predetermined threshold by controlling the charging current or voltage to produce a voltage ramp between the battery's open circuit voltage and a defined depolarization voltage. By such depolarization, a " postponed " Electrode potential of a battery to be brought back into balance. The voltage of the battery resulting after the depolarization process then corresponds to the charge starting voltage of the charging process. 6/34 6
    The depolarization voltage ramp can be repeated at least once. The duration of the depolarization process is chosen as a fraction of the total available charging time. For example, the duration of the depolarization can be selected in the range of a few minutes with a charging time of a few hours.
    After the charging process has been completed when the charging end voltage has been reached, a recharge can be carried out to fully charge the battery. For recharging or recharging the battery, various common methods can be used.
    Instead of entering the desired charging time, the desired time at which the battery is to be fully charged can also be entered or specified, and the charging time can be determined as the difference between this predetermined end time of the charging process and the current time. This facilitates the handling of the charger, since the user no longer has to calculate the available charging time, but merely has to specify when he needs the fully charged battery. In particular, in a shift operation, such a possibility is advantageous.
    The predetermined charging time can be reduced to a fraction, in particular to 50% to 90% of the specified charging time, in order to still have sufficient time for the possible depolarization process or other procedures. It is also ensured by such a shortening of the definitive charging time that the battery is already fully charged before the agreed time and, for example, can be installed in a truck in good time before a start of shift.
    When the start of charging is delayed by a period of time, for example, an economic advantage can be obtained by utilizing cheaper nighttime electricity.
    In this case, a maximum possible time interval for the delay of the charging process can be proposed and displayed. As a result, the user can be offered, for example, the possibility of using cheaper nighttime electricity. This must then the delay by appropriate operation on the battery charger 7/34 7
    Set device.
    The object of the invention is also achieved by an above-mentioned battery charging device, in which a device for determining the state of charge of the battery is provided, further on the input / output device, the charging time can be predetermined, and the control device is designed to control the charging current or the charging voltage, that the charging voltage is increased during the predetermined charging time of the battery between a charging start voltage according to the state of charge of the battery and the end-of-charge voltage. Such a battery charging device is particularly simple and inexpensive to implement. For example, such a battery charging device can be realized with a given control accuracy by a corresponding update of the software of the control device. The input of the desired charging time can be done via the usual input / output device. For optimum input and output capability and flexible adaptability to the respective requirements, it is advantageous if the input / output device is formed by a touch screen.
    For further features and advantages of a battery charging device for carrying out the above battery charging method, reference is made to the above description of the charging method and the following description of exemplary embodiments.
    The present invention will be explained in more detail with reference to the accompanying drawings. Show:
    Fig. 1 is a block diagram of an apparatus for charging a battery;
    Figure 2 shows the usual course of the internal resistance of a lead-acid battery depending on the state of charge and age of the battery.
    3 is a schematic time diagram of a charging method according to the invention;
    Fig. 4 shows the characteristics of the charging current, the charging voltage and the nen resistance of a battery as a function of Ladezu state in a conventional charging method with 8/34 8 constant current;
    5 shows the characteristics of the charging current, the charging voltage and the internal resistance of a battery as a function of the state of charge in the charging method according to the invention;
    6 shows a variant of the charging method with a voltage ramp with different slopes;
    7 shows the characteristics of the charging current, the charging voltage and the internal resistance of a battery as a function of the state of charge at different aging states of the battery. 8 shows an alternative of the charging process with current pulses; and FIG. 9 shows the time profiles of the charging current and the charging voltage of the battery in an example of the charging method according to the invention.
    1 shows a block diagram of a device 1 for charging a battery 10. The battery charging device 1 comprises connections 2 and 3 for connection to the battery 10 to be charged. Usually, the battery charging device 1 is connected to the AC voltage network 4 and the AC voltage of the AC voltage network 4 in a corresponding one Transducer 5 converted. In a charging circuit 6, which may be formed in various ways, the required for the battery 10 charging current IL and the charging voltage UL is generated. A control device 7, which may be formed for example by a microprocessor, takes over the control of the charging circuit 6. About an input / output device 8, which may be formed for example by a touch screen, the input of required parameters and the output or display of information over the charging process. Via an interface 9, which is connected to the control device 7, data can be read or loaded into the battery charging device 1. For example, the interface 9 can be formed by a USB (Universal Serial Bus) interface, via which updates of the software of the control device 7 can be made.
    Likewise, the interface 9 can be formed by an Ethernet interface or the like, via which the battery charging device 1 can be connected to a network, in particular the Internet.
    Fig. 2 shows the usual course of the internal resistance Ri a 9/34. 9
    Lead-acid battery depending on the state of charge and age of the battery. The curve A shows the internal resistance R ± of a lead-acid battery as a function of the state of charge for a new battery. At a medium state of charge (here about 40%), the internal resistance R ± has a minimum. Both at a lower state of charge and higher state of charge, the internal resistance R ± increases due to various chemical reactions in the battery. If the battery is charged with a constant current, as usual, without taking into account the respective internal resistance R ± of the battery, relatively high losses occur during the charging process and the battery is heated to an increased extent. The heating of the battery in turn leads to increased corrosion of the battery and to a reduction in their life (Arrhenius law). The curve B shows the curve of the internal resistance R ± an older battery as a function of the state of charge, which is located above the curve A of the new battery, since the internal resistance Ri increases with the age of the battery. In addition, there is a strong dependence of the internal resistance Ri of batteries on the respective heating. As the temperature rises, the internal resistance R ± of the battery usually decreases.
    3 shows a schematic time diagram of the charging current IL and the charging voltage UL of a method according to the invention for charging batteries. The charging method includes, for example, four phases marked with Roman numerals. In phase I, the determination of the state of charge of the battery, for example, by the idle voltage ULL is determined. In addition, it is checked in the test procedure whether the battery charger can provide the required charging current IL for charging the battery over the set or predetermined charging time t 'charging at all. This is done by applying voltage ramps before the start of the charging phase III. The duration of the voltage ramps is in a certain relation to the specified charging time t'Laden · The voltage ramps can be repeated one or more times and at the end of the voltage ramp the current is measured. Based on the measured current, the maximum charging current IL in the charging phase III can be estimated. If the charging current IL can not be made available by the battery charging device, the definite charging time t'loading must be increased in accordance with 10/34 10. This can be predetermined, for example, by displaying a lower limit for the charging time t Load, min on the battery charging device.
    Before the actual charging phase III (main charging phase), a depolarization of the battery can be made according to Phase II. This phase is carried out in particular when the open-circuit voltage ULL of the battery is below a certain limit ULLG. During the Depolarisationsphase II voltage ramps are applied to the battery, whereby a shifted electrode potential of the battery can be brought into balance. The duration of the depolarization phase II is selected as a fraction of the effective charging time t 'charging. After completion of the Depolarisationsphase II, the actual charging begins III. The voltage of the battery resulting after the depolarization phase II is now the charging start voltage Ula of the charging phase III. If no depolarization phase II is carried out, the open-circuit voltage ULL of the battery would be used as charge start voltage Ula.
    According to the invention, the charging voltage UL is increased during the charging time t 'charging between the charging start voltage ULA and the charging end voltage ULS determined by the battery. The end-of-charge voltage ULS depends on the battery technology used, the number of cells and the battery temperature. In the illustrated example, the charging voltage UL is continuously and linearly increased between the charging start voltage Ula and the end-of-charge voltage ULS during the charging time t'load. In order to achieve such a linear course of the charging voltage UL, the charging current IL or the charging voltage UL must be regulated accordingly, so that the desired course of the charging voltage UL, as shown results. By means of the corresponding regulation, the internal resistance Ri of the battery is indirectly taken into account, without it actually being measured. By taking into account the changing internal resistance Ri during the charging process III, the charge losses and thus the heating of the battery can be significantly reduced. As a result, the battery life can be increased accordingly. The definitive time t loading of the main charging operation III is a fraction of the total available charging time tload / for example 50-80% thereof. The net time for charging III is marked with t'Laden.
    After completion of the main charging process in phase III, a recharge process IV can be connected to the full charge. Here, various known methods for recharging or full charging the battery can be applied.
    4 shows the characteristics of the charging current IL of the charging voltage UL and the internal resistance R ± of a battery as a function of the state of charge in a conventional charging method with a constant charging current IL. In such a standard charging method, the battery is charged with a constant charging current IL, which is why a corresponding curve for the charging voltage UL as a function of the complex internal resistance R ± the battery results. During the charging phase, the changing internal resistance Ri of the battery is not considered. Up to a certain charging voltage UL charging current IL remains constant (constant current) or substantially constant (constant power). As a result, different charge losses occur during charging, which lead to different heating of the battery, in particular to increased heating, which reduces the life of the battery.
    In comparison, Fig. 5 shows the curves of the charging current IL of the charging voltage UL and the internal resistance Ri of a battery as a function of the state of charge in the charging method according to the invention. After the test procedure and possibly the
    Depolarisationsvorgang, the charging voltage UL is increased from the charging start voltage Ula of the battery to the charging end voltage ULS. In order to achieve such a course of the charging voltage UL, the charging current IL must be regulated in accordance with, whereby taking into account the changing internal resistance Ri is carried out automatically. This results in a profile of the charging current IL, which has a maximum at a substantially medium state of charge (in this case about 30-40%). Through this charging process, the losses during charging can be reduced and thus also the battery heating can be reduced, which has a positive influence on the battery life. During charging, the internal resistance Ri of the battery is not measured. In contrast to a continuous increase in the charging voltage UL 12/34 12 but this can also be increased by current pulses or voltage pulses and measured or calculated between the current or voltage pulses of the internal resistance R ± the battery and the next current pulse or voltage pulse to the measured internal resistance Ri be adapted (see Fig. 8).
    FIG. 6 shows a variant compared with the charging method according to FIG. 5, in which the regulation of the charging current IL or of the charging voltage UL is carried out in such a way that the ramped charging voltage UL has different partial sections with different slopes. In the illustrated embodiment, the charging process begins with a steeper rise in the charging voltage UL, then passes into a section with a lower slope and ends again with a section with steeper increase of the charging voltage UL to the end of charge voltage ULS. By such a flattening of the ramp of the charging voltage UL, the maximum of the charging current IL can be reduced with minimal internal resistance Ri. As a result, a charger with a lower maximum charging current IL is sufficient.
    7 shows the characteristics of the charging current IL, the charging voltage UL and the internal resistance R ± of a battery as a function of the state of charge in the charging method according to the invention in the case of a different state of aging of the battery. While in a new battery, the internal resistance Ri is lower, this increases according to the age of the battery accordingly. The curve R'i shows the course of the internal resistance Ri of an aged battery. In the charging method according to the invention, the charging voltage UL is now impressed accordingly and thus remains unchanged, no matter how old the battery is. On the other hand, the charging current IL, which is regulated in order to achieve the desired course of the charging voltage UL, is correspondingly reduced in the case of an aged battery due to the higher internal resistance R'i. This is illustrated by the course of the charging current I 'L.
    8 shows the characteristics of the charging current IL, the charging voltage UL and the internal resistance R ± of a battery as a function of the charging state in the charging method according to the invention using current pulses which are used to obtain the ramp-shaped 13
    Be the course of the charging voltage UL regulated accordingly. The course of the charging voltage UL is shown only schematically. In reality, the charging voltage UL will not increase linearly, but will have changes corresponding to the pulses of the charging current IL. In the pauses between two current pulses, the internal resistance R ± is measured and included in the regulation of the charging current IL, in that the charging current IL is regulated as a function of the measured internal resistance R ±. For measuring the internal resistance Ri, a reduction of the current to a certain value is sufficient; it is not necessary to reduce the current to zero. For detecting the complex internal resistance Ri of the battery, the voltage response is detected for a certain time and the internal resistance R ± is calculated therefrom. Instead of current pulses voltage pulses can be impressed. However, this variant is more complicated by the regulation.
    Finally, FIG. 9 also shows the time profiles of the charging current IL and the charging voltage UL of the battery in an example of the charging method according to the invention. During the charging phase III, the charging current gradually decreases, whereby the losses during charging can be reduced.
    The charging method according to the invention causes an increased overall efficiency and, due to the thereby reduced temperature increase, an extension of the battery life and thus an extension of the operational capability of the battery, for example in an industrial truck. As a result, there is also less loss of water in the battery. The battery can be charged gently by optimally utilizing the total charging time tLaden or net charging time t'load. By taking advantage of times in which energy is cheaper, such as nighttime electricity, it can also lead to further economic benefits. For example, a delay by a period of time Atv can also be made before the charging phase is initiated (not shown). 14/34
    权利要求:
    Claims (25)
    [1]
    14. A method for charging batteries (10), in particular lead-acid batteries, with a predetermined charge end voltage (ULS), characterized in that before the charging process, the state of charge of the battery (10) is detected, and the battery ( 10) is charged during the charging process with a charging current (IL) or a charging voltage (UL), which is regulated such that the charging voltage (UL) during a predetermined charging time (t'load) between a charging starting voltage (ULA) according to Charging state of the battery (10) and the end of charge voltage (ULS) is increased.
    [2]
    2. Battery charging method according to claim 1, characterized in that the charging current (IL) or the charging voltage (UL) is regulated such that the charging voltage (UL) during the charging time (t'load) between the charging start voltage (ULA) and the charging end voltage ( ULS) is increased linearly.
    [3]
    3. Battery charging method according to claim 1 or 2, characterized in that the charging current (IL) or the charging voltage (UL) is regulated such that the charging voltage (UL) during the charging time (t'load) is continuously increased.
    [4]
    4. Battery charging method according to claim 1 or 2, characterized in that the charging current (IL) or the charging voltage (UL) during the charging time (t'Laden) is gradually increased, wherein by means of current and voltage pulses of the internal resistance (R ±) of the battery (10) and adjusting the charging current (IL) or the charging voltage (UL) to the measured internal resistance (R ±).
    [5]
    5. Battery charging method according to one of claims 1 to 4, characterized in that a message is output when the charging current required to achieve the charging voltage (UL) during the charging time (t'load) charging current (IL) above a maximum possible charging current (IL, max) is.
    [6]
    6. Battery charging method according to one of claims 1 to 5, characterized in that a lower limit value for the charging time (tload, min) is displayed, within which the charging of the 15/34 15 battery (10) with the maximum possible charging current (IL, max) until reaching the end of charge voltage (ULS).
    [7]
    7. Battery charging method according to one of claims 1 to 6, characterized in that the state of charge of the battery by measuring the current open-circuit voltage (ULL) is detected.
    [8]
    8. battery charging method according to claim 7, characterized in that the battery (10) before charging the battery (10) is depolarized when the open circuit voltage (ULL) is below a predetermined limit (ULLg) by the charging current (IL) or the Charging voltage (UL) is controlled such that a voltage ramp between the no-load voltage (ULL) of the battery and a defined depolarization voltage (ULD) is generated.
    [9]
    9. Battery charging method according to claim 8, characterized in that the depolarization voltage ramp is repeated at least once.
    [10]
    10. Battery charging method according to one of claims 1 to 9, characterized in that after charging with reaching the end of charge voltage (ULS) a recharge is made.
    [11]
    11. Battery charging method according to one of claims 1 to 10, characterized in that the charging time (t'load) is determined as the difference ei nes predetermined end time (tE) of the charging process and the current time (clock).
    [12]
    12. Battery charging method according to one of claims 1 to 11, characterized in that the predetermined charging time (t'load) is reduced to a fraction, in particular to 50% to 90% of the charging time (t loading.
    [13]
    13. Battery charging method according to one of claims 1 to 12, characterized in that the beginning of the charging process is delayed by a period of time (Atv).
    [14]
    14. Battery charging method according to claim 13, characterized in that a maximum possible period of time (Atv, max) for the delay delay of the charging process is proposed and displayed. 16/34 16
    [15]
    15. Device (1) for charging batteries (10), in particular lead-acid batteries, with a predetermined charge end voltage (ULS), with connections (2, 3) for connection to the battery (10), with an input / Output device (8) and a control device (7), characterized in that a device for determining the state of charge of the battery (10) is provided, that further on the input / output device (8), the charging time (tLa-den) is predetermined, and the control device (7) is designed to regulate the charging current (IL) or the charging voltage (UL) such that the charging voltage (UL) during the predetermined charging time (t'load) of the battery (10) between a charge starting voltage (Ula) according to Charge state of the battery and the end of charge voltage (ULS) is increased.
    [16]
    16. Battery charging device (1) according to claim 15, characterized in that the input / output device (8) is formed by a touch screen.
    [17]
    17. Battery charging device (1) according to claim 15 or 16, characterized in that the control device (7) for controlling the charging current (IL) or the charging voltage (UL) is formed, resulting in a linear increase of the charging voltage (UL) during the charging time (t'load) between the charging start voltage (Ula) and the charging end voltage (ULS).
    [18]
    18. Battery charging device (1) according to any one of claims 15 to 17, characterized in that the control device (7) for controlling the charging current (IL) or the charging voltage (UL) is formed, resulting in a continuous increase in the charging voltage (UL) during the charging time (t'load) between the charging start voltage (Ula) and the charging end voltage (ULS).
    [19]
    19. Battery charging device (1) according to claim 15 or 16, characterized in that the control device (7) for gradually increasing the charging current (IL) or the charging voltage (UL) during the charging time (t'load) between the charging start voltage (Ula) and the charging end voltage (ULS) is formed, and that means for measuring or calculating the internal resistance (Ri) of the battery (10) between the pulses of the charging current 17/34 17 (IL) or the charging voltage (UL) is provided, which with the Control device (7) is connected so that an adaptation of the charging current (IL) or the charging voltage (UL) to the measured internal resistance (Ri) is feasible.
    [20]
    20. Battery charging device (1) according to any one of claims 15 to 19, characterized in that the input / output device (8) is designed to output a message when the necessary to achieve the charging voltage (UL) during the charging time (tload) charging current (IL) is above a maximum possible charging current (IL, max).
    [21]
    21. Battery charger (1) according to any one of claims 15 to 20, characterized in that the input / output device (8) for displaying a lower limit for the charging time (tload, min), within which the charging of the battery (10) the maximum possible charging current (IL, max) is possible until reaching the charging end voltage (ULS) is formed.
    [22]
    22. Battery charging device (1) according to any one of claims 15 to 21, characterized in that the means for determining the state of charge of the battery (10) by a device for measuring the current open-circuit voltage (ULL) of the battery (10) is formed.
    [23]
    23. Battery charging device (1) according to any one of claims 15 to 22, characterized in that the input / output device (8) for inputting an end time (tE) of the charging process, to which the battery (10) is to be fully charged, is formed, and that the control device (7) is designed to determine the charging time (tload) as the difference between the predetermined end time (tE) of the charging process and the current time (clock).
    [24]
    24. Battery charging device (1) according to any one of claims 15 to 23, characterized in that the control device (7) for delaying the charging by a period of time (Atv) is formed.
    [25]
    25. Battery charging device (1) according to claim 24, characterized in that the input / output device (8) is designed to display 18/34 18 a maximum possible period of time (Atv, max) for the delay of the charging process. 19/34
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    同族专利:
    公开号 | 公开日
    CN104769806A|2015-07-08|
    WO2014040104A3|2014-10-16|
    US20150249349A1|2015-09-03|
    WO2014040104A2|2014-03-20|
    EP2896105A2|2015-07-22|
    CN104769806B|2018-02-13|
    US9537342B2|2017-01-03|
    EP2896105B1|2017-08-23|
    EP3136539A1|2017-03-01|
    AT513335B1|2017-10-15|
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    法律状态:
    优先权:
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    ATA50382/2012A|AT513335B1|2012-09-13|2012-09-13|Method and device for charging batteries|ATA50382/2012A| AT513335B1|2012-09-13|2012-09-13|Method and device for charging batteries|
    EP13791898.3A| EP2896105B1|2012-09-13|2013-09-09|Method and device for charging batteries|
    EP16190154.1A| EP3136539A1|2012-09-13|2013-09-09|Method and device for the charging of batteries|
    PCT/AT2013/050176| WO2014040104A2|2012-09-13|2013-09-09|Method and device for charging batteries|
    CN201380057844.3A| CN104769806B|2012-09-13|2013-09-09|Method and apparatus for being charged to battery|
    US14/427,676| US9537342B2|2012-09-13|2013-09-09|Method and device for charging batteries by linearly increasing the charging voltage|
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