CN102544609B - Charge control method and system - Google Patents
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- CN102544609B CN102544609B CN201010624240.0A CN201010624240A CN102544609B CN 102544609 B CN102544609 B CN 102544609B CN 201010624240 A CN201010624240 A CN 201010624240A CN 102544609 B CN102544609 B CN 102544609B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a charge control method and a charge control system. The charge control method comprises the following steps of: measuring the temperature and ambient temperature of a single battery/each group of batteries in real time in the charging process; comparing the temperature and ambient temperature of the single battery/each group of batteries with a preset temperature threshold value, and determining charging parameters for charging in the next stage; and controlling the charging of the single battery/each group of batteries according to the determined charging parameters. According to the charge control method and the charge control system, the temperature of the single battery/each group of batteries is monitored in real time in the charging process, the charging parameters in each charging stage are determined according to the temperature change of the batteries, and the charging of the single battery/each group of batteries is controlled according to the charging parameters. Therefore, the damage to the batteries due to overhigh charging temperature is avoided while the batteries are charged completely, so that the batteries are protected, and the service life of the batteries is prolonged.
Description
Technical field
The present invention relates to a kind of mobile communication power supply field, relate in particular to a kind of charge control method and system.
Background technology
Lithium ion battery because operating voltage is high, volume is little, quality is light, memory-less effect, pollution-free, self discharge is little, have extended cycle life, and is a kind of ideal source.In actual use, in order to obtain higher discharge voltage, generally at least two monomer lithium ion batteries are composed in series to the use of lithium ion battery group.In prior art, lithium ion battery group is carried out to charging and can have following problem.
Due to battery in process of production, start will pass through a lot of procedures to becoming finished product from film.Even through strict trace routine, make voltage, resistance, the capacity of every group of power supply consistent, but use a period of time, the internal resistance of cell and voltage produce fluctuation, produce difference.Produce after difference, adopt the mode of global voltage control to be difficult to be applicable to lithium dynamical battery.
The for example battery pile of a 36V, with 10 battery series connection.The charging control voltage of entirety is 42V, and control of discharge voltage is 26V.Discharge by the mode of global voltage controlled discharge, if when 10 battery discharges, wherein the voltage of two batteries is at 2.8V, and the voltage of four batteries is 3.2V, four 3.4V just, and present global voltage is 32V, allows it continue the electric discharge 26V that always works.Like this, the voltage of the battery of two 2.8V can be lower than 2.6V in crossing the state of putting, and lithium battery is crossed and put and will scrap several times.Otherwise, charge by the mode of global voltage control charging, as charged by above-mentioned 10 batteries voltage status at that time.When global voltage reaches 42V, the battery of those two 2.8V is in hungry state, and absorbs rapidly electric weight, will exceed 4.2V, and the battery that exceedes 4.2V overcharging is not only scrapped because overtension produces, even also can causing danger property.
In addition, although some battery management system is with equalization function, but owing to considering from cost, heat radiation, reliability etc. are many-sided, the euqalizing current of battery management system is generally much smaller than the electric current of serial connection charge, therefore portfolio effect is not clearly, also there will be some cell to be not fully filled electric situation, this is more obvious for needing the lithium ion battery group of large current charge.
General battery charging modes can be divided into: constant-voltage charge method, constant-current charge method, determine voltage switching constant-current charge method, pulse charging method, Reflex mise-a-la-masse method; And can, according to battery variety characteristic difference, select applicable charging modes.Because the battery of this research use is lithium battery, although Reflex charge efficiency is higher, can affect the lithium battery life-span, and Reflex mise-a-la-masse method and its control circuit of pulse charging method more complicated, affected by extraneous factor; The constant-voltage charge method charging initial stage differs too large because of the terminal voltage of charger setting voltage and battery, and the charging initial stage can cause charging current excessive, and its charging interval is longer; Constant-current charge method charge efficiency is high, but the charging later stage easily causes over-charge of lithium battery film to ring battery life, the charge controller accurately of must arranging in pairs or groups.
The mode that adopts battery management system and charger cooperation serial connection charge, also cannot solve some battery in battery pack and be not fully filled electric problem, particularly when battery pack string number is many, battery consistency is poor, charging current is when larger.
Summary of the invention
The object of the invention is to, a kind of charge control method and system are provided, avoid the too high battery that causes of battery charge temperature to damage, extend battery.
For achieving the above object, according to an aspect of the present invention, provide a kind of charge control method, comprising:
Preset charge parameter and the temperature of monomer/every Battery pack and the corresponding relation of ambient temperature of monomer/every Battery pack, in storing into and controlling database;
In charging process, measure temperature and the ambient temperature of monomer/every Battery pack;
Inquire about in described controlling database according to the temperature of described monomer/every Battery pack and ambient temperature, determine the charge parameter of next stage charging;
According to definite charge parameter control monomer/every Battery pack charging.
Preferably, the method also comprises:
Preset charge parameter and the voltage of monomer/every Battery pack and/or the corresponding relation of electric current of monomer/every Battery pack, in controlling database described in storing into;
Measure voltage and/or the electric current of described monomer/every Battery pack;
Inquire about in described controlling database according to the voltage of described monomer/every Battery pack and/or electric current, determine the charge parameter of next stage charging.
Preferably, the method also comprises:
Preset the charge parameter of monomer/every Battery pack and the corresponding relation of monomer/electric weight that every Battery pack is filled with, in controlling database described in storing into;
Calculate according to the voltage and current of described monomer/every Battery pack of measuring the electric weight that described monomer/every Battery pack is filled with;
Calculate actual capacity and the residual capacity of described monomer/every Battery pack according to described monomer/electric weight that every Battery pack is filled with and the nominal capacity of battery;
Inquire about in described controlling database according to the actual capacity of described monomer/every Battery pack and residual capacity, determine the charge parameter of next stage charging.
More preferably, the method also comprises:
In the time that the temperature of described monomer/every Battery pack exceedes default alarm temperature threshold value, stop, to described monomer/every Battery pack charging, carrying out alarm.
For achieving the above object, according to another aspect of the present invention, provide a kind of charge control system, comprising:
Control database, for storing charge parameter and the temperature of monomer/every Battery pack and the corresponding relation of ambient temperature of predefined monomer/every Battery pack;
Sample circuit, for measuring temperature and the ambient temperature of monomer/every Battery pack in charging process;
Charge arrangement device, for inquiring about to described controlling database according to the temperature of described monomer/every Battery pack and ambient temperature, determines the charge parameter of next stage charging;
Battery charge controller, for charging according to definite charge parameter control monomer/every Battery pack.
Preferably, described in control database, also for storing the charge parameter and the voltage of monomer/every Battery pack and/or the corresponding relation of electric current that preset monomer/every Battery pack;
Described sample circuit, for voltage and/or the electric current of monomer described in actual measured amount/every Battery pack;
Described charge arrangement device, for inquiring about to described controlling database according to the actual capacity of described monomer/every Battery pack and residual capacity, determines the charge parameter of next stage charging.
More preferably, described in control database, also for storing the charge parameter of predefined monomer/every Battery pack and the corresponding relation of monomer/electric weight that every Battery pack is filled with;
Described charge arrangement device, for calculating according to the voltage and current of described monomer/every Battery pack of measuring the electric weight that described monomer/every Battery pack is filled with; Calculate actual capacity and the residual capacity of described monomer/every Battery pack according to described monomer/electric weight that every Battery pack is filled with and the nominal capacity of battery; Inquire about in described controlling database according to the actual capacity of described monomer/every Battery pack and residual capacity, determine the charge parameter of next stage charging.
Wherein, described charge arrangement device comprises: single-chip microcomputer, for inquiring about controlling database of described single-chip microcomputer according to temperature, ambient temperature, voltage and/or the electric current of monomer/every Battery pack of measuring, determine the charge parameter of next stage, generate corresponding configuration signal and be sent to described battery charge controller;
Described battery charge controller comprises: dual chip redundancy pulse width modulator, for the configuration signal generating according to described single-chip microcomputer, control respectively charging voltage and the charging current of next stage.
Described sample circuit comprises: first order sample circuit, for measure temperature, voltage and/or the electric current of cell in charging process; Second level sample circuit, for measure temperature, voltage and/or the electric current of single every Battery pack in charging process, and ambient temperature.
More preferably, this system also comprises: alarm device, when exceeding default alarm temperature threshold value when the temperature of described monomer/every Battery pack, carries out alarm.
Charge control method of the present invention and system, by monitor in real time the temperature of monomer/every Battery pack in charging process, determine the charge parameter of each charging stage, according to these charging of charge parameter control to monomer/every Battery pack according to the variation of battery temperature.Like this, making the complete completely charged of battery simultaneously, avoiding the too high battery that causes of battery charge temperature to damage, protection battery, extends battery.
Brief description of the drawings
Fig. 1 is the flow chart of charge control method embodiment of the present invention;
Fig. 2 is charging control process schematic diagram of the present invention;
Fig. 3 is the structure chart of charge control system embodiment of the present invention;
Fig. 4 is the structure chart of another embodiment of charge control system of the present invention.
Embodiment
Basic charging principle of the present invention is determined concrete charge parameter by single-chip microcomputer according to the temperature of battery to be charged, charging voltage and charging current, for battery charges.Below in conjunction with accompanying drawing, the present invention is described in detail.
embodiment of the method
As shown in Figure 1, the flow process of charge control method embodiment of the present invention comprises the following steps:
Step 102, presets charge parameter and the temperature of monomer/every Battery pack and the corresponding relation of ambient temperature of monomer/every Battery pack, in storing into and controlling database;
Step 104, real-time temperature and the ambient temperature of measuring monomer/every Battery pack in charging process;
Step 106, inquires about in described controlling database according to the temperature of described monomer/every Battery pack and ambient temperature, determines the charge parameter of next stage charging;
Step 108, according to definite charge parameter control monomer/every Battery pack charging.
Further, also preset charge parameter and the voltage of monomer/every Battery pack and/or the corresponding relation of electric current of monomer/every Battery pack, in controlling database described in storing into; Measure voltage and/or the electric current of described monomer/every Battery pack; Inquire about in described controlling database according to the voltage of described monomer/every Battery pack and/or electric current, determine the charge parameter of next stage charging.
Or, preset the charge parameter of monomer/every Battery pack and the corresponding relation of monomer/electric weight that every Battery pack is filled with, in controlling database described in storing into; Calculate according to the voltage and current of described monomer/every Battery pack of measuring the electric weight that described monomer/every Battery pack is filled with; Calculate actual capacity and the residual capacity of described monomer/every Battery pack according to described monomer/electric weight that every Battery pack is filled with and the nominal capacity of battery; Inquire about in described controlling database according to the actual capacity of described monomer/every Battery pack and residual capacity, determine the charge parameter of next stage charging.
Wherein, the charge parameter of battery comprises: the charging modes of battery, and as trick charge, voltage stabilization and current stabilization, micro-electric current voltage stabilizing charging etc., charging voltage and charging current.
Below for example charge control method of the present invention is specifically described.
As shown in Figure 2, curve C 1 represents cell charging curve, and curve C 2 represents the current curve of every Battery pack charging, and curve C 3 represents the voltage curve of every Battery pack charging.
In the S1 stage, when charging starts, first detect temperature, voltage and the ambient temperature of battery to be charged, if battery temperature normal (as 25 degrees Celsius), voltage, lower than 3V, carries out precharge, generally selects 0.05C left and right; If charging voltage is than the high 0.25v of cell voltage to be charged, controls and carry out constant voltage constant current charging half an hour; As detect pond to be charged excess Temperature (as 26-28 degree Celsius) and just change the temperature control trick charge stage into, selecting charging current is 0.03C left and right; If after temperature is normal, be that 0.05C continues charging according to charging current.In controlling database, the corresponding relation of monomer/every Battery pack and ambient temperature and charging modes, charging voltage and charging current is as shown in following table 1 and table 2.
Table 1
Table 2
In the S2 stage, in charging process, in time charging current is adjusted according to the real time temperature situation of change of monomer/every Battery pack and environment all the time.Meanwhile, adjust charging modes, charging voltage and charging current according to the voltage of battery and discharging current.The corresponding relation of cell voltage and discharging current and charging modes, charging voltage and charging current is as shown in table 3 below.
Table 3
| Cell voltage (monomer) | Battery discharge current | Charging modes | Charging voltage | Charging current |
| 3.16 | 0.05C | Voltage stabilization and current stabilization charging | 4.2v | 0.1c |
| 3.65222 | 0.1C | Voltage stabilization and current stabilization charging | 4.2v | 0.05c |
| 3.78637 | 0.02C | Voltage stabilization and current stabilization charging | 4.2v | 0.1c |
| 4.08047 | 0.1C | Micro-electric current voltage stabilizing charging | 4.2v | 0.02c |
| 4.1 | 0.1C | Trick charge | 4.2v | 0.01c |
In the S3 stage, in charging process, calculate according to the voltage and current of the battery of measuring the electric weight that battery is filled with, the electric weight being filled with according to battery and nominal capacity calculate actual capacity and the residual capacity of battery, and determine the voltage and current value of charging according to battery remaining power percentage.
Wherein, the electric weight that battery is filled with is charging current I (peace) * charging interval h.
The nominal capacity of battery refers to that design specifies or ensure that battery, under certain discharging condition, should emit MIN electric weight when battery with manufacturing.
The actual capacity of battery refers to the actual electric weight that battery is emitted under certain discharging condition, discharging current I (peace) * h discharge time (hour).Be generally battery cell voltage to time of setting as 10.5V etc. discharge time, and it is 50 minutes (0.83 hour) that 500AH battery 60A discharges into the 10.5V time, and its actual capacity is exactly 50/60*60=50AH.The actual capacity of battery is mainly subject to the impact of discharge-rate and temperature.
Wherein, remaining capacity=nominal capacity-actual capacity.The plant capacity of cells known load is W watt, and cell voltage is v volt, and battery nominal capacity is Q ampere-hour, and so, when battery operated, after T hour, battery remaining power is: Q-(W/V) * T, the unit of residual capacity is " ampere-hour ".
Battery remaining power and the terminal voltage table of comparisons are as shown in table 4 below,
Table 4
| Lithium battery terminal voltage (V) | Residual capacity (mAh) | Residual capacity (%) |
| 3.16 | 0 | 0 |
| 3.49796 | 64.59 | 3 |
| 3.59629 | 107.6 | 5 |
| 3.65222 | 150.59 | 7 |
| 3.68579 | 214.77 | 10 |
| 3.73665 | 429.92 | 20 |
| 3.77137 | 644.84 | 30 |
| 3.78637 | 859.67 | 40 |
| 3.81443 | 1074.9 | 50 |
| 3.86209 | 1289.536 | 60 |
| 3.93642 | 1504.677 | 70 |
| 4.00057 | 1719.838 | 80 |
| 4.08047 | 1934.603 | 90 |
| 4.17463 | 2150 | 100 |
For example, in the time that the residual capacity of battery is 70%, determine that next stage charging voltage is 4.00057V, charging current is 0.1C.
In the S4 stage, monitoring is filled with capacity and the residual capacity of cell, each capacity lagging cell is repeated to charging by the mode of Weak current fast lifting voltage, in charging process, monitoring battery temperature variations is adjusted the size of charging current and voltage all the time.
When cell voltage is raised to 4.20V, change conventional constant voltage charge into, maintenance charging voltage is 4.20V.Now, charging current declines gradually, when electric current drop to set charging current 1/10 time, charging finish.
In sum, cell charging voltage is maintained until to 4.2v and is divided into four steps:
1, detect whether there is cell lower than 3.5V, if any, use the little electric current of the 2%-3% that charges normal flow valuve 0.1C to the battery wheel current charge lower than 3.5V, within 1-2 as continuous in cell temperature hour, do not change, use instead than the 4%-5% charging that charges normal flow valuve, make it boost to 3.5V;
If 2 have battery cell to reach 4.2V, enter next step;
3, reduce gradually the value and the stacked terraced fields cycle-index of wave that flow than the 4%-5% charging that charges normal flow valuve, make the ceiling voltage of cell maintain 4.2V;
4, the battery to 4.2V is not taken turns to current charge, use the little electric current of the 1%-2% that charges normal flow valuve to the battery wheel current charge one-period lower than 4.2V, make it boost to 4.2V, charging finishes.
Preferably, in the present embodiment, in the time that the temperature of monomer/every Battery pack exceedes default alarm temperature threshold value, stop, to described monomer/every Battery pack charging, carrying out alarm.In whole charging process, all the time the temperature of battery is monitored, can make the temperature of battery be controlled in the scope of user's setting.Can arrange after battery temperature exceedes 0.5 second of scope of setting, will stop battery charging; Battery temperature get back to the scope of setting with interior 0.5 second after charging continue.By the real-time monitoring warning to temperature, can find in time the problem in battery charging process, avoid battery because excess Temperature damages.
Charge control method of the present invention, by monitor in real time temperature and the ambient temperature of monomer/every Battery pack in charging process, determine the charge parameter of each charging stage according to the variation of battery temperature, according to these charging of charge parameter control to monomer/every Battery pack.Like this, making the complete completely charged of battery simultaneously, avoiding the too high battery that causes of battery charge temperature to damage, protection battery, extends battery.In addition, in charging process, further consider voltage, electric current and the dump energy etc. of battery, it is more accurate to make battery charging.
system embodiment
As shown in Figure 3, charge control system embodiment of the present invention comprises:
Control database 31, for storing charge parameter and the temperature of monomer/every Battery pack and the corresponding relation of ambient temperature of predefined monomer/every Battery pack;
Sample circuit 32, for measuring temperature and the ambient temperature of battery 38 in charging process;
Charge arrangement device 34, for inquiring about to described controlling database according to the temperature of described monomer/every Battery pack and ambient temperature, determines the charge parameter of next stage charging;
Battery charge controller 34, for charging according to definite charge parameter control battery 38.
Preferably, described in control database 31, also for storing the charge parameter and the voltage of monomer/every Battery pack and/or the corresponding relation of electric current that preset monomer/every Battery pack; Sample circuit 32, for measuring in real time voltage and/or the electric current of monomer/every Battery pack; Charge arrangement device 34, for inquiring about to described controlling database according to the actual capacity of described monomer/every Battery pack and residual capacity, determines the charge parameter of next stage charging.
More preferably, described in control database 31, also for storing the charge parameter of predefined monomer/every Battery pack and the corresponding relation of monomer/electric weight that every Battery pack is filled with; Described charge arrangement device 34, for calculating according to the voltage and current of described monomer/every Battery pack of measuring the electric weight that described monomer/every Battery pack is filled with; Calculate actual capacity and the residual capacity of described monomer/every Battery pack according to described monomer/electric weight that every Battery pack is filled with and the nominal capacity of battery; Inquire about in described controlling database according to the actual capacity of described monomer/every Battery pack and residual capacity, determine the charge parameter of next stage charging.
As shown in Figure 4, in the present embodiment, charge arrangement device 34 comprises: single-chip microcomputer, for inquiring about controlling database of described single-chip microcomputer according to temperature, ambient temperature, voltage and/or the electric current of monomer/every Battery pack of measuring, determine the charge parameter of next stage, generate corresponding configuration signal and be sent to described battery charge controller; Battery charge controller 36 comprises: dual chip redundancy pulse width modulator, for the configuration signal generating according to described single-chip microcomputer, control respectively charging voltage and the charging current of next stage.
Wherein this single-chip microcomputer can be P89LPC936 chip; Dual chip redundancy pulse width modulator comprises UC3845 and two chips of SG2525A, controls respectively charging current and charging voltage.UC3845 is high-performance fixed frequency Converter Controlled by Current mode PWM device, and SG2525 chip adopts constant frequency pulse width modulation controlled mode.When charging circuit breaks down while there is over-current and-load situation, close in time SG2525A and UC3845, the main circuit of charging circuit is quit work.
In addition, sample circuit 32 comprises: first order sample circuit, for measure temperature, voltage and/or the electric current of cell in charging process; Second level sample circuit, for measure the temperature of every Battery pack in charging process, measures the temperature in each battery case, and measures voltage and/or the electric current of every Battery pack.Wherein, the first order adopts circuit to comprise chip TMP300 and S-8204B, and TMP300 is for detection of the temperature of cell, and S-8204B is for detection of voltage and/or the electric current of cell.Second level sample circuit comprises temperature-measuring module, for detection of temperature and the ambient temperature of every Battery pack; Also comprise chip LTC1769 (LTC1760), for measuring voltage and/or the electric current of every Battery pack.
First order sample circuit sends to the temperature of the cell measuring, voltage and/or electric current the single-chip microcomputer of second level sample circuit and charge arrangement device, temperature, voltage and/or the electric current of every Battery pack that second level sample circuit obtains detection, ambient temperature send to single-chip microcomputer, single-chip microcomputer is determined the charging modes of monomer/every Battery pack according to these measured values that obtain, be charging voltage and charging current, and how long adopt this charging voltage and charging current for charging.
This charge control system is specifically controlled the process that battery charges and is described in detail in said method embodiment, does not repeat them here.
The system of the present embodiment also comprises: alarm device 39, when exceeding default alarm temperature threshold value when the temperature of described monomer/every Battery pack, carries out alarm.
Charge control system of the present invention, by monitor in real time the temperature of monomer/every Battery pack in charging process, determines the charge parameter of each charging stage, according to these charging of charge parameter control to monomer/every Battery pack according to the variation of battery temperature.Like this, making the complete completely charged of battery simultaneously, avoiding the too high battery that causes of battery charge temperature to damage, protection battery, extends battery.In addition, in charging process, further consider voltage, electric current and the dump energy etc. of battery, it is more accurate to make battery charging.
It should be noted that: above embodiment is only unrestricted in order to the present invention to be described, the present invention is also not limited in above-mentioned giving an example, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in claim scope of the present invention.
Claims (8)
1. a charge control method, is characterized in that, comprising:
Preset charge parameter and the temperature of monomer/every Battery pack and the corresponding relation of ambient temperature of monomer/every Battery pack, in storing into and controlling database;
In charging process, measure temperature and the ambient temperature of monomer/every Battery pack;
Inquire about in described controlling database according to the temperature of described monomer/every Battery pack and ambient temperature, determine the charge parameter of next stage charging;
According to definite charge parameter control monomer/every Battery pack charging; Also comprise:
Preset charge parameter and the voltage of monomer/every Battery pack and/or the corresponding relation of electric current of monomer/every Battery pack, in controlling database described in storing into;
Measure voltage and/or the electric current of described monomer/every Battery pack;
Inquire about in described controlling database according to the voltage of described monomer/every Battery pack and/or electric current, determine the charge parameter of next stage charging.
2. charge control method according to claim 1, is characterized in that, also comprises:
Preset the charge parameter of monomer/every Battery pack and the corresponding relation of monomer/electric weight that every Battery pack is filled with, in controlling database described in storing into;
Calculate according to the voltage and current of described monomer/every Battery pack of measuring the electric weight that described monomer/every Battery pack is filled with;
Calculate actual capacity and the residual capacity of described monomer/every Battery pack according to described monomer/electric weight that every Battery pack is filled with and the nominal capacity of battery;
Inquire about in described controlling database according to the actual capacity of described monomer/every Battery pack and residual capacity, determine the charge parameter of next stage charging.
3. charge control method according to claim 1, is characterized in that, also comprises:
In the time that the temperature of described monomer/every Battery pack exceedes default alarm temperature threshold value, stop, to described monomer/every Battery pack charging, carrying out alarm.
4. a charge control system, is characterized in that, comprising:
Control database, for storing charge parameter and the temperature of monomer/every Battery pack and the corresponding relation of ambient temperature of predefined monomer/every Battery pack;
Sample circuit, for measuring temperature and the ambient temperature of monomer/every Battery pack in charging process;
Charge arrangement device, for inquiring about to described controlling database according to the temperature of described monomer/every Battery pack and ambient temperature, determines the charge parameter of next stage charging;
Battery charge controller, for charging according to definite charge parameter control monomer/every Battery pack;
Described controlling database, also for storing the charge parameter and the voltage of monomer/every Battery pack and/or the corresponding relation of electric current that preset monomer/every Battery pack;
Described sample circuit, for measuring voltage and/or the electric current of described monomer/every Battery pack;
Described charge arrangement device, for inquiring about to described controlling database according to the actual capacity of described monomer/every Battery pack and residual capacity, determines the charge parameter of next stage charging.
5. charge control system according to claim 4, is characterized in that,
Described controlling database, also for storing the charge parameter of predefined monomer/every Battery pack and the corresponding relation of monomer/electric weight that every Battery pack is filled with;
Described charge arrangement device, for calculating according to the voltage and current of described monomer/every Battery pack of measuring the electric weight that described monomer/every Battery pack is filled with; Calculate actual capacity and the residual capacity of described monomer/every Battery pack according to described monomer/electric weight that every Battery pack is filled with and the nominal capacity of battery; Inquire about in described controlling database according to the actual capacity of described monomer/every Battery pack and residual capacity, determine the charge parameter of next stage charging.
6. according to the charge control system described in claim 4 or 5, it is characterized in that, described charge arrangement device comprises: single-chip microcomputer, for inquiring about controlling database of described single-chip microcomputer according to temperature, ambient temperature, voltage and/or the electric current of monomer/every Battery pack of measuring, determine the charge parameter of next stage, generate corresponding configuration signal and be sent to described battery charge controller;
Described battery charge controller comprises: dual chip redundancy pulse width modulator, for the configuration signal generating according to described single-chip microcomputer, control respectively charging voltage and the charging current of next stage.
7. charge control system according to claim 4, is characterized in that, described sample circuit comprises: first order sample circuit, for measure temperature, voltage and/or the electric current of cell in charging process; Second level sample circuit, for measure temperature, voltage and/or the electric current of single every Battery pack in charging process, and ambient temperature.
8. charge control system according to claim 4, is characterized in that, also comprises:
Alarm device, when exceeding default alarm temperature threshold value when the temperature of described monomer/every Battery pack, carries out alarm.
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