CN105093123A - Method and apparatus for determining quantity of storage batteries in storage battery pack - Google Patents
Method and apparatus for determining quantity of storage batteries in storage battery pack Download PDFInfo
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Abstract
The invention discloses a method and apparatus for determining the quantity of storage batteries in a storage battery pack, and the quantity of the storage batteries can be accurately determined. The method for determining the quantity of storage batteries in a storage battery pack includes charging the storage battery pack until the voltage of the storage battery pack reaches charging voltage, and determining quantity of the storage batteries in the storage battery pack according to the voltage change of the storage battery pack when the charging process is terminated.
Description
Technical field
The present invention relates to detection technique field, particularly relate to accumulator number determination method and device in a kind of battery pack.
Background technology
A lot of system is as all arranged battery pack as standby electric module in uninterruptible power system at present.In prior art, usually inputted the quantity information of accumulator in battery pack to system by operating personnel, system can arrange the parameter such as charging voltage, discharge prevention voltage of battery pack according to the quantity information of the accumulator of operating personnel's input.
But; the artificial input of operating personnel is difficult to the accuracy ensureing input information; when the quantity information of the accumulator that operating personnel input to system is inaccurate; the parameter such as the charging voltage of the battery pack of Operation system setting, discharge prevention voltage can be caused unreasonable, and then occur the problem of battery pack discharge and recharge exception.
Summary of the invention
The embodiment of the present invention provides accumulator number determination method and device in a kind of battery pack, accurately can determine the quantity of accumulator.
First aspect, provides accumulator number determination method in a kind of battery pack, comprising:
Battery pack is charged, terminates until charge when the voltage of described battery pack reaches charging voltage;
The change in voltage terminating rear described battery pack according to charging determines the quantity of accumulator in described battery pack.
In conjunction with first aspect, in the implementation that the first is possible, specifically determine described charging voltage in the following way:
According to the discreet value of accumulator quantity in battery pack, determine the charging voltage that battery pack is charged.
In conjunction with the first possible implementation of first aspect, in the implementation that the second is possible, according to the discreet value of accumulator quantity in battery pack, determine the charging voltage that battery pack is charged, specifically comprise:
When described discreet value is for estimating minimum value, determine that charging voltage is that P saves even charging voltage corresponding to accumulator; Wherein, P for described in estimate minimum value and add X, X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to P that P saves even charging voltage corresponding to accumulator;
The change in voltage terminating rear described battery pack according to charging determines the quantity of accumulator in described battery pack, specifically comprises:
If after charging end setup duration, the voltage of described battery pack is less than P and saves float charge voltage corresponding to accumulator, then determine the quantity of accumulator in described battery pack for described in estimate minimum value; Wherein, P saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to P;
If after charging end setup duration, the voltage of described battery pack is not less than P and saves float charge voltage corresponding to accumulator, estimate minimum value described in then upgrading and add Y, redefine charging voltage to charge to described battery pack, until determine the quantity of accumulator in described battery pack be upgrade after estimate minimum value; Wherein, Y is positive integer.
In conjunction with the implementation that the second of first aspect is possible, in the implementation that the third is possible, described in specifically determining in the following way, estimate the initial value of minimum value:
If the initial voltage of described battery pack is greater than M save even charging voltage corresponding to accumulator, be less than M+1 and save even charging voltage corresponding to accumulator, then the initial value estimating minimum value described in determining is M+1; Wherein, M be more than or equal to 1 positive integer, it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M that M saves even charging voltage corresponding to accumulator, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M+1 that M+1 saves even charging voltage corresponding to accumulator.
In conjunction with the first possible implementation of first aspect, in the 4th kind of possible implementation, according to the discreet value of accumulator quantity in battery pack, determine the charging voltage that battery pack is charged, specifically comprise:
When described discreet value is for estimating maximal value, determine that charging voltage is that Q saves even charging voltage corresponding to accumulator; Wherein, Q for described in estimate maximal value and subtract X, X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to Q that Q saves even charging voltage corresponding to accumulator;
The change in voltage terminating rear described battery pack according to charging determines the quantity of accumulator in described battery pack, specifically comprises:
If after charging end setup duration, the voltage of described battery pack is greater than Q and saves float charge voltage corresponding to accumulator, then determine the quantity of accumulator in described battery pack for described in estimate maximal value; Wherein, Q saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to Q;
If after charging end setup duration, the voltage of described battery pack is not more than Q and saves float charge voltage corresponding to accumulator, estimate maximal value described in then upgrading and subtract Y, redefine charging voltage to charge to described battery pack, until determine the quantity of accumulator in described battery pack be upgrade after estimate maximal value; Wherein, Y is positive integer.
In conjunction with the implementation that the second of first aspect is possible, the third possible implementation of first aspect, or the 4th of first aspect the kind of possible implementation, in the 5th kind of possible implementation, 0 < X < 1, Y=1.
Second aspect, provides the determining device of accumulator quantity in a kind of battery pack, comprising:
Charhing unit, for charging to battery pack, terminates until charge when the voltage of described battery pack reaches charging voltage;
Determining unit, the change in voltage for terminating rear described battery pack according to charging determines the quantity of accumulator in described battery pack.
In conjunction with second aspect, in the implementation that the first is possible, described determining unit, specifically for determining described charging voltage in the following way:
According to the discreet value of accumulator quantity in battery pack, determine the charging voltage that battery pack is charged.
In conjunction with the first possible implementation of second aspect, in the implementation that the second is possible, stating determining unit, specifically for when described discreet value is for estimating minimum value, determining that charging voltage is that P saves even charging voltage corresponding to accumulator; Wherein, P for described in estimate minimum value and add X, X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to P that P saves even charging voltage corresponding to accumulator;
Described determining unit, if also specifically for after charging end setup duration, the voltage of described battery pack is less than P and saves float charge voltage corresponding to accumulator, then determine the quantity of accumulator in described battery pack for described in estimate minimum value; Wherein, P saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to P; If after charging end setup duration, the voltage of described battery pack is not less than P and saves float charge voltage corresponding to accumulator, estimate minimum value described in then upgrading and add Y, redefine charging voltage to charge to described battery pack, until determine the quantity of accumulator in described battery pack be upgrade after estimate minimum value; Wherein, Y is positive integer.
In conjunction with the implementation that the second of second aspect is possible, in the implementation that the third is possible, described determining unit, also specifically for estimating the initial value of minimum value described in determining in the following way:
If the initial voltage of described battery pack is greater than M save even charging voltage corresponding to accumulator, be less than M+1 and save even charging voltage corresponding to accumulator, then the initial value estimating minimum value described in determining is M+1; Wherein, M be more than or equal to 1 positive integer, it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M that M saves even charging voltage corresponding to accumulator, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M+1 that M+1 saves even charging voltage corresponding to accumulator.
In conjunction with the first possible implementation of second aspect, in the 4th kind of possible implementation, described determining unit, specifically for when described discreet value is for estimating maximal value, determines that charging voltage is that Q saves even charging voltage corresponding to accumulator; Wherein, Q for described in estimate maximal value and subtract X, X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to Q that Q saves even charging voltage corresponding to accumulator;
Described determining unit, if also specifically for after charging end setup duration, the voltage of described battery pack is greater than Q and saves float charge voltage corresponding to accumulator, then determine the quantity of accumulator in described battery pack for described in estimate maximal value; Wherein, Q saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to Q; If after charging end setup duration, the voltage of described battery pack is not more than Q and saves float charge voltage corresponding to accumulator, estimate maximal value described in then upgrading and subtract Y, redefine charging voltage to charge to described battery pack, until determine the quantity of accumulator in described battery pack be upgrade after estimate maximal value; Wherein, Y is positive integer.
In conjunction with the implementation that the second of second aspect is possible, the third possible implementation of second aspect, or the 4th of second aspect the kind of possible implementation, in the 5th kind of possible implementation, 0 < X < 1, Y=1.
According to accumulator number determination method in the battery pack that first aspect provides; the determining device of accumulator quantity in the battery pack that second aspect provides; battery pack is charged; the quantity of accumulator in the change in voltage determination battery pack of rear battery pack is terminated according to charging; avoid the inaccuracy of artificial input accumulator quantity information; make system that the parameter such as charging voltage, discharge prevention voltage of battery pack can be rationally set, thus the problem occurring battery pack discharge and recharge exception can be avoided.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described by the accompanying drawing used required in describing embodiment below, apparently, the accompanying drawing in the following describes is only some embodiments of the present invention.
The process flow diagram of accumulator number determination method in the battery pack that Fig. 1 provides for the embodiment of the present invention;
The detail flowchart of accumulator number determination method in the battery pack that Fig. 2 provides for the embodiment of the present invention 1;
The detail flowchart of accumulator number determination method in the battery pack that Fig. 3 provides for the embodiment of the present invention 2;
The structural representation of the determining device of accumulator quantity in the battery pack that Fig. 4 provides for the embodiment of the present invention;
The structural representation of accumulator quantity locking equipment really in the battery pack that Fig. 5 provides for the embodiment of the present invention.
Embodiment
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.
The embodiment of the present invention provides accumulator number determination method in a kind of battery pack, as shown in Figure 1, can comprise the steps:
Step 101, battery pack to be charged, until charging terminates when the voltage of battery pack reaches charging voltage;
Step 102, terminate the quantity of accumulator in the change in voltage determination battery pack of rear battery pack according to charging.
Concrete, according to the discreet value of accumulator quantity in battery pack, the charging voltage that battery pack is charged can be determined, the quantity of accumulator in battery pack can be determined more quickly.
Below in conjunction with accompanying drawing, with specific embodiment, citing is carried out to accumulator number determination method in battery pack provided by the invention and describe.
Embodiment 1:
In the battery pack that Fig. 2 provides for the embodiment of the present invention 1, the detail flowchart of accumulator number determination method, specifically can comprise the steps:
Step 201, determine the initial value estimating minimum value Nmin of accumulator quantity in battery pack.
The minimum value estimating the quantity of the accumulator that actual capabilities comprise in minimum value Nmin and battery pack of accumulator quantity in battery pack.Therefore, this initial value estimating minimum value Nmin directly can be defined as 1.
Usually, in battery pack, the quantity of accumulator has certain area requirement, is not infinitely less or much more unlimited, therefore, also can directly to determine that the above-mentioned initial value estimating minimum value Nmin is the lower limit of this scope.Such as, when the quantitative range of accumulator is 2 ~ 10 in the battery pack specified, can determine that the above-mentioned initial value estimating minimum value Nmin is 2.
Preferably, the above-mentioned initial value estimating minimum value Nmin can be determined according to the initial voltage of battery pack, the initial value estimating minimum value Nmin determined can be made closer to the actual number value of accumulator, therefore, it is possible to accelerate accumulator quantity constant speed degree really.Concrete, if the initial voltage of battery pack is greater than M save even charging voltage corresponding to accumulator, is less than M+1 and saves even charging voltage corresponding to accumulator, then determine that the above-mentioned initial value estimating minimum value Nmin is M+1; Wherein, M be more than or equal to 1 positive integer, it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M that M saves even charging voltage corresponding to accumulator, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M+1 that M+1 saves even charging voltage corresponding to accumulator.
Determine accumulator quantity in electric battery estimate the initial value of minimum value Nmin after, before performing following step 202, first a three stage charging system can be carried out to battery pack according to the initial value determined, the first stage of three stage charging system is constant current charging mode, subordinate phase is constant-voltage charge pattern, phase III is floating charge pattern, continues to perform following step 202 after entering phase III floating charge pattern.
Step 202, determine that P saves even charging voltage corresponding to accumulator; Wherein, P adds X for estimating minimum value Nmin, and namely P=Nmin+X, X are positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to P that P saves even charging voltage corresponding to accumulator.
Preferably, 0 < X < 1, can determine the quantity of accumulator in battery pack more accurately.Preferably, X=0.5.
The even charging voltage that step 203, the P that step 202 determined save accumulator corresponding charges as charging voltage to battery pack, terminates until the voltage of battery pack reaches charging when P saves even charging voltage corresponding to accumulator.
The even charging voltage that the P that specifically step 202 can be determined saves accumulator corresponding carries out constant-current charge as charging voltage to battery pack.
After step 204, judgement charging end setup duration, whether the voltage of battery pack is less than P is saved float charge voltage corresponding to accumulator; Wherein, P saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to P.
If after charging end setup duration, the voltage of battery pack is less than P and saves float charge voltage corresponding to accumulator, illustrates that in battery pack, accumulator electric-quantity is saturated, then enter step 205;
If after charging end setup duration, the voltage of battery pack is not less than P and saves float charge voltage corresponding to accumulator, accumulator electric-quantity unsaturation in battery pack is described, then enters step 206.
Wherein set duration specifically to limit according to battery characteristics in practical application scene.
Step 205, determine that the quantity of accumulator in battery pack is for estimating minimum value Nmin, this flow process terminates.
Step 206, renewal are estimated minimum value Nmin and are added Y, namely upgrade and estimate minimum value Nmin=Nmin+Y, return step 202, redefine charging voltage and battery pack is charged, until determine the quantity of accumulator in battery pack be upgrade after estimate minimum value.
Wherein, Y is positive integer.Preferably, Y=1, can determine the quantity of accumulator in battery pack more accurately.
After minimum value Nmin is estimated in renewal, return before performing step 202, also can carry out a three stage charging system according to the minimum value Nmin that estimates upgraded to battery pack.
Visible, adopt accumulator number determination method in the battery pack that provides of the embodiment of the present invention 1, advanced formula promotes charging voltage, can the actual quantity of accumulator in Step wise approximation battery pack.
Embodiment 2:
In the battery pack that Fig. 3 provides for the embodiment of the present invention 2, the detail flowchart of accumulator number determination method, specifically can comprise the steps:
Step 301, determine the initial value estimating maximal value Nmax of accumulator quantity in battery pack.
The maximal value estimating the quantity of the accumulator that actual capabilities comprise in maximal value Nmax and battery pack of accumulator quantity in battery pack.
Usually, in battery pack, the quantity of accumulator has certain area requirement, is not infinitely less or much more unlimited, therefore, also can directly to determine that the above-mentioned initial value estimating maximal value Nmax is the higher limit of this scope.Such as, when the quantitative range of accumulator is 2 ~ 10 in the battery pack specified, can determine that the above-mentioned initial value estimating maximal value Nmax is 10.
Step 302, determine that Q saves even charging voltage corresponding to accumulator; Wherein, Q subtracts X for estimating maximal value Nmax, and namely Q=Nmax-X, X are positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to Q that Q saves even charging voltage corresponding to accumulator.
Preferably, 0 < X < 1, can determine the quantity of accumulator in battery pack more accurately.Preferably, X=0.5.
The even charging voltage that step 303, the Q that step 302 determined save accumulator corresponding charges as charging voltage to battery pack, terminates until the voltage of battery pack reaches charging when Q saves even charging voltage corresponding to accumulator.
The even charging voltage that the Q that specifically step 302 can be determined saves accumulator corresponding carries out constant-current charge as charging voltage to battery pack.
After step 304, judgement charging end setup duration, whether the voltage of battery pack is greater than Q is saved float charge voltage corresponding to accumulator; Wherein, Q saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to Q.
If after charging end setup duration, the voltage of battery pack is greater than Q and saves float charge voltage corresponding to accumulator, accumulator electric-quantity unsaturation in battery pack is described, then enters step 305;
If after charging end setup duration, the voltage of battery pack is not more than Q and saves float charge voltage corresponding to accumulator, illustrates that in battery pack, accumulator electric-quantity is saturated, then enter step 306.
Wherein set duration specifically to limit according to battery characteristics in practical application scene.
Step 305, determine that the quantity of accumulator in battery pack is for estimating maximal value Nmax, this flow process terminates.
Step 306, renewal are estimated maximal value Nmax and are subtracted Y, namely upgrade and estimate maximal value Nmax=Nmax-Y, return step 302, redefine charging voltage and battery pack is charged, until determine the quantity of accumulator in battery pack be upgrade after estimate maximal value.
Wherein, Y is positive integer.Preferably, Y=1, can determine the quantity of accumulator in battery pack more accurately.
Visible, adopt accumulator number determination method in the battery pack that provides of the embodiment of the present invention 2, advanced formula reduces charging voltage, also can the actual quantity of accumulator in Step wise approximation battery pack.
It should be noted that, above-described embodiment 1 and embodiment 2 are only two preferable examples, charging voltage in the present invention is not limited to monotone increasing in embodiment 1 and changes or monotone decreasing change in embodiment 2, charging voltage also can curvilinear motion, the change in voltage that all can terminate rear battery pack according to charging accurately determines the quantity of accumulator in battery pack, avoid the inaccuracy of artificial input accumulator quantity information, make system that the charging voltage of battery pack can be rationally set, the parameters such as discharge prevention voltage, thus the problem occurring battery pack discharge and recharge exception can be avoided, extend battery life, protection successive load.
Based on same inventive concept, according to accumulator number determination method in the battery pack that the above embodiment of the present invention provides, correspondingly, the embodiment of the present invention also provides the determining device of accumulator quantity in a kind of battery pack, its structural representation as shown in Figure 4, specifically comprises:
Charhing unit 401, for charging to battery pack, terminates until charge when the voltage of this battery pack reaches charging voltage;
Determining unit 402, determines the quantity of accumulator in this battery pack for the change in voltage of this battery pack after terminating according to charging.
Preferably, determining unit 402, specifically for determining this charging voltage in the following way:
According to the discreet value of accumulator quantity in battery pack, determine the charging voltage that battery pack is charged.
In one particular embodiment of the present invention, determining unit 402, specifically for when this discreet value is for estimating minimum value, determines that charging voltage is that P saves even charging voltage corresponding to accumulator; Wherein, P adds X for this estimates minimum value, and X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to P that P saves even charging voltage corresponding to accumulator;
Determining unit 402, if also specifically for after charging end setup duration, the voltage of this battery pack is less than P and saves float charge voltage corresponding to accumulator, then determine that the quantity of accumulator in this battery pack estimates minimum value for this; Wherein, P saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to P; If after charging end setup duration, the voltage of this battery pack is not less than P and saves float charge voltage corresponding to accumulator, then upgrade this to estimate minimum value and add Y, redefine charging voltage to charge to this battery pack, until determine the quantity of accumulator in this battery pack be upgrade after estimate minimum value; Wherein, Y is positive integer.
Preferably, determining unit 402, also specifically for determining that this estimates the initial value of minimum value in the following way:
If the initial voltage of this battery pack is greater than M save even charging voltage corresponding to accumulator, is less than M+1 and saves even charging voltage corresponding to accumulator, then determine that this initial value estimating minimum value is M+1; Wherein, M be more than or equal to 1 positive integer, it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M that M saves even charging voltage corresponding to accumulator, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M+1 that M+1 saves even charging voltage corresponding to accumulator.
In another specific embodiment of the present invention, determining unit 402, specifically for when this discreet value is for estimating maximal value, determines that charging voltage is that Q saves even charging voltage corresponding to accumulator; Wherein, Q subtracts X for this estimates maximal value, and X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to Q that Q saves even charging voltage corresponding to accumulator;
Determining unit 402, if also specifically for after charging end setup duration, the voltage of this battery pack is greater than Q and saves float charge voltage corresponding to accumulator, then determine that the quantity of accumulator in this battery pack estimates maximal value for this; Wherein, Q saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to Q; If after charging end setup duration, the voltage of this battery pack is not more than Q and saves float charge voltage corresponding to accumulator, then upgrade this to estimate maximal value and subtract Y, redefine charging voltage to charge to this battery pack, until determine the quantity of accumulator in this battery pack be upgrade after estimate maximal value; Wherein, Y is positive integer.
Preferably, 0 < X < 1, Y=1.
The function of above-mentioned each module may correspond to the respective handling step in flow process shown in Fig. 1-Fig. 3, does not repeat them here.
Based on same inventive concept, the embodiment of the present invention also provides accumulator quantity locking equipment really in a kind of battery pack, its structural representation as shown in Figure 5, comprises processor 500, the voltage sampling circuit 501 of battery pack and the charging circuit 502 of battery pack, wherein:
Processor 500 is for obtaining the sampled result of the sample circuit 501 of battery pack, and the charging circuit 502 pairs of battery pack controlling battery pack are charged, and terminates until charge when the voltage of this battery pack reaches charging voltage; After terminating according to charging, the change in voltage of this battery pack determines the quantity of accumulator in this battery pack.
In some embodiments, processor 500 is specifically for determining this charging voltage in the following way:
According to the discreet value of accumulator quantity in battery pack, determine the charging voltage that battery pack is charged.
In some embodiments, processor 500, specifically for when this discreet value is for estimating minimum value, determines that charging voltage is that P saves even charging voltage corresponding to accumulator; Wherein, P adds X for this estimates minimum value, and X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to P that P saves even charging voltage corresponding to accumulator;
If processor 500 is also specifically for after charging end setup duration, the voltage of this battery pack is less than P and saves float charge voltage corresponding to accumulator, then determine that the quantity of accumulator in this battery pack estimates minimum value for this; Wherein, P saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to P; If after charging end setup duration, the voltage of this battery pack is not less than P and saves float charge voltage corresponding to accumulator, then upgrade this to estimate minimum value and add Y, redefine charging voltage to charge to this battery pack, until determine the quantity of accumulator in this battery pack be upgrade after estimate minimum value; Wherein, Y is positive integer.
In some embodiments, processor 500 is also specifically for determining that this estimates the initial value of minimum value in the following way:
If the initial voltage of this battery pack is greater than M save even charging voltage corresponding to accumulator, is less than M+1 and saves even charging voltage corresponding to accumulator, then determine that this initial value estimating minimum value is M+1; Wherein, M be more than or equal to 1 positive integer, it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M that M saves even charging voltage corresponding to accumulator, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M+1 that M+1 saves even charging voltage corresponding to accumulator.
In some embodiments, processor 500, specifically for when this discreet value is for estimating maximal value, determines that charging voltage is that Q saves even charging voltage corresponding to accumulator; Wherein, Q subtracts X for this estimates maximal value, and X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to Q that Q saves even charging voltage corresponding to accumulator;
Processor 500, if also specifically for after charging end setup duration, the voltage of this battery pack is greater than Q and saves float charge voltage corresponding to accumulator, then determine that the quantity of accumulator in this battery pack estimates maximal value for this; Wherein, Q saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to Q; If after charging end setup duration, the voltage of this battery pack is not more than Q and saves float charge voltage corresponding to accumulator, then upgrade this to estimate maximal value and subtract Y, redefine charging voltage to charge to this battery pack, until determine the quantity of accumulator in this battery pack be upgrade after estimate maximal value; Wherein, Y is positive integer.
In some embodiments, 0 < X < 1, Y=1.
In sum, the scheme that provides of the embodiment of the present invention is provided, accurately can determines the quantity of accumulator, avoid artificially inputting the problems that accumulator quantity information brings.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the embodiment of the present invention.Like this, if these amendments of the embodiment of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. an accumulator number determination method in battery pack, is characterized in that, comprising:
Battery pack is charged, terminates until charge when the voltage of described battery pack reaches charging voltage;
The change in voltage terminating rear described battery pack according to charging determines the quantity of accumulator in described battery pack.
2. the method for claim 1, is characterized in that, specifically determines described charging voltage in the following way:
According to the discreet value of accumulator quantity in battery pack, determine the charging voltage that battery pack is charged.
3. method as claimed in claim 2, is characterized in that, according to the discreet value of accumulator quantity in battery pack, determine the charging voltage of charging to battery pack, specifically comprise:
When described discreet value is for estimating minimum value, determine that charging voltage is that P saves even charging voltage corresponding to accumulator; Wherein, P for described in estimate minimum value and add X, X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to P that P saves even charging voltage corresponding to accumulator;
The change in voltage terminating rear described battery pack according to charging determines the quantity of accumulator in described battery pack, specifically comprises:
If after charging end setup duration, the voltage of described battery pack is less than P and saves float charge voltage corresponding to accumulator, then determine the quantity of accumulator in described battery pack for described in estimate minimum value; Wherein, P saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to P;
If after charging end setup duration, the voltage of described battery pack is not less than P and saves float charge voltage corresponding to accumulator, estimate minimum value described in then upgrading and add Y, redefine charging voltage to charge to described battery pack, until determine the quantity of accumulator in described battery pack be upgrade after estimate minimum value; Wherein, Y is positive integer.
4. method as claimed in claim 3, is characterized in that, estimate the initial value of minimum value described in specifically determining in the following way:
If the initial voltage of described battery pack is greater than M save even charging voltage corresponding to accumulator, be less than M+1 and save even charging voltage corresponding to accumulator, then the initial value estimating minimum value described in determining is M+1; Wherein, M be more than or equal to 1 positive integer, it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M that M saves even charging voltage corresponding to accumulator, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M+1 that M+1 saves even charging voltage corresponding to accumulator.
5. method as claimed in claim 2, is characterized in that, according to the discreet value of accumulator quantity in battery pack, determine the charging voltage of charging to battery pack, specifically comprise:
When described discreet value is for estimating maximal value, determine that charging voltage is that Q saves even charging voltage corresponding to accumulator; Wherein, Q for described in estimate maximal value and subtract X, X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to Q that Q saves even charging voltage corresponding to accumulator;
The change in voltage terminating rear described battery pack according to charging determines the quantity of accumulator in described battery pack, specifically comprises:
If after charging end setup duration, the voltage of described battery pack is greater than Q and saves float charge voltage corresponding to accumulator, then determine the quantity of accumulator in described battery pack for described in estimate maximal value; Wherein, Q saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to Q;
If after charging end setup duration, the voltage of described battery pack is not more than Q and saves float charge voltage corresponding to accumulator, estimate maximal value described in then upgrading and subtract Y, redefine charging voltage to charge to described battery pack, until determine the quantity of accumulator in described battery pack be upgrade after estimate maximal value; Wherein, Y is positive integer.
6. the method as described in as arbitrary in claim 3-5, is characterized in that, 0 < X < 1, Y=1.
7. the determining device of accumulator quantity in battery pack, is characterized in that, comprising:
Charhing unit, for charging to battery pack, terminates until charge when the voltage of described battery pack reaches charging voltage;
Determining unit, the change in voltage for terminating rear described battery pack according to charging determines the quantity of accumulator in described battery pack.
8. device as claimed in claim 7, is characterized in that, described determining unit, specifically for determining described charging voltage in the following way:
According to the discreet value of accumulator quantity in battery pack, determine the charging voltage that battery pack is charged.
9. device as claimed in claim 8, is characterized in that, described determining unit, specifically for when described discreet value is for estimating minimum value, determines that charging voltage is that P saves even charging voltage corresponding to accumulator; Wherein, P for described in estimate minimum value and add X, X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to P that P saves even charging voltage corresponding to accumulator;
Described determining unit, if also specifically for after charging end setup duration, the voltage of described battery pack is less than P and saves float charge voltage corresponding to accumulator, then determine the quantity of accumulator in described battery pack for described in estimate minimum value; Wherein, P saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to P; If after charging end setup duration, the voltage of described battery pack is not less than P and saves float charge voltage corresponding to accumulator, estimate minimum value described in then upgrading and add Y, redefine charging voltage to charge to described battery pack, until determine the quantity of accumulator in described battery pack be upgrade after estimate minimum value; Wherein, Y is positive integer.
10. device as claimed in claim 9, is characterized in that, described determining unit, also specifically for estimating the initial value of minimum value described in determining in the following way:
If the initial voltage of described battery pack is greater than M save even charging voltage corresponding to accumulator, be less than M+1 and save even charging voltage corresponding to accumulator, then the initial value estimating minimum value described in determining is M+1; Wherein, M be more than or equal to 1 positive integer, it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M that M saves even charging voltage corresponding to accumulator, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to M+1 that M+1 saves even charging voltage corresponding to accumulator.
11. devices as claimed in claim 8, is characterized in that, described determining unit, specifically for when described discreet value is for estimating maximal value, determine that charging voltage is that Q saves even charging voltage corresponding to accumulator; Wherein, Q for described in estimate maximal value and subtract X, X is positive number, and it is adopt constant-voltage charge pattern to save charging voltage when accumulator charges to Q that Q saves even charging voltage corresponding to accumulator;
Described determining unit, if also specifically for after charging end setup duration, the voltage of described battery pack is greater than Q and saves float charge voltage corresponding to accumulator, then determine the quantity of accumulator in described battery pack for described in estimate maximal value; Wherein, Q saves float charge voltage corresponding to accumulator is adopt floating charge pattern to save charging voltage when accumulator charges to Q; If after charging end setup duration, the voltage of described battery pack is not more than Q and saves float charge voltage corresponding to accumulator, estimate maximal value described in then upgrading and subtract Y, redefine charging voltage to charge to described battery pack, until determine the quantity of accumulator in described battery pack be upgrade after estimate maximal value; Wherein, Y is positive integer.
12. as arbitrary in claim 9-11 as described in device, it is characterized in that, 0 < X < 1, Y=1.
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