CN105356527B - A kind of method and apparatus that dynamic electric voltage rotection thresholds are provided - Google Patents
A kind of method and apparatus that dynamic electric voltage rotection thresholds are provided Download PDFInfo
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- CN105356527B CN105356527B CN201510683848.3A CN201510683848A CN105356527B CN 105356527 B CN105356527 B CN 105356527B CN 201510683848 A CN201510683848 A CN 201510683848A CN 105356527 B CN105356527 B CN 105356527B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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Abstract
The invention discloses a kind of method and apparatus for providing dynamic electric voltage rotection thresholds, wherein this method comprises the following steps：Demarcation test is carried out to electrokinetic cell, obtains the corresponding relation between the temperature value, current value and voltage protection threshold value of the electrokinetic cell；Receive the actual temperature value and actual current value of the electrokinetic cell；According to the corresponding relation between the temperature value, current value and voltage protection threshold value, the dynamic electric voltage rotection thresholds corresponding with the actual temperature value and actual current value are obtained.Methods and apparatus of the present invention can provide dynamic electric voltage rotection thresholds, its can according to the change of electric current or speed dynamic change.
Description
Technical field
The present invention relates to electrokinetic cell protection technique field, relates in particular to a kind of offer dynamic electric voltage rotection thresholds
Method and apparatus.
Background technology
The too high or too low voltage protection threshold value of electrokinetic cell is generally arranged to 2-3 levels, when the voltage of reality exceedes
Or during less than one-level or secondary voltage rotection thresholds, alarm will be produced, remind the appropriate Reduced Speed Now of driver.When the voltage of reality
During above or below tertiary voltage rotection thresholds, it will quote too high or too low catastrophe failure, remind driver's parking or vehicle
It is automatic to disconnect high-voltage relay.
At present, voltage protection threshold value is all arranged to fixed value, and it can not change according to the change of electric current.For example, work as
When electric current is larger, voltage will exceed one-level, two level and tertiary voltage rotection thresholds moment, and driver often has little time to act car
Just passive has broken high-voltage relay, and not reserving time enough to driver goes processing to alarm, and such as carries out
The processing such as deceleration, to eliminate the failure that voltage exceedes tertiary voltage rotection thresholds.Especially, it is usually in big electricity when electric current is larger
When banishing electricity, now vehicle is often in during high speed traveling, direct if not giving driver's enough processing times
Break high pressure, it is easy to can cause to lose control of one's vehicle, the generation for the peril such as knock into the back.
The content of the invention
Therefore, the technical problems to be solved by the invention are that it is a fixation to overcome voltage protection threshold value of the prior art
Value, the problem of can not changing according to the change of electric current, propose a kind of method and dress that dynamic electric voltage rotection thresholds can be provided
Put.
A kind of method of offer dynamic electric voltage rotection thresholds of the present invention, comprises the following steps：
Demarcation test is carried out to electrokinetic cell, obtains the temperature value, current value and voltage protection threshold value of the electrokinetic cell
Between corresponding relation；
Receive the actual temperature value and actual current value of the electrokinetic cell；
According to the corresponding relation between the temperature value, current value and voltage protection threshold value, obtain and the actual temperature
The value dynamic electric voltage rotection thresholds corresponding with actual current value.
Preferably, it is described that demarcation test is carried out to electrokinetic cell, obtain the temperature value, current value and electricity of the electrokinetic cell
The step of pressing the corresponding relation between rotection thresholds includes：
Charge or discharge to electrokinetic cell carry out demarcation test, obtain temperature value, current value, charging interval and magnitude of voltage
Between corresponding relation or temperature value, current value, discharge time and magnitude of voltage between corresponding relation, wherein charging when highest permit
Perhaps magnitude of voltage is charge cutoff voltage, and minimum permission discharge voltage value is discharge cut-off voltage during electric discharge, with the charge cutoff
The magnitude of voltage corresponding charging interval is the charge cutoff time, and the discharge time corresponding with the discharge cut-off voltage value is to put
Electric deadline；
The processing time reserved needed for reception；
According to the corresponding relation between the temperature value, current value, charging interval and magnitude of voltage or temperature value, current value,
Corresponding relation between discharge time and magnitude of voltage with reference to the required reserved processing time, obtain temperature value, current value and
Corresponding pass between corresponding relation or temperature value, current value and discharge voltage rotection thresholds between charging voltage rotection thresholds
System, the charging voltage rotection thresholds are the magnitudes of voltage corresponding with the first charging interval, and the discharge voltage rotection thresholds are
The magnitude of voltage corresponding with the first discharge time, first charging interval be the charge cutoff time with it is described required reserved
Processing time difference；First discharge time is the electric discharge deadline and the required reserved processing time
Difference.
Preferably, the charging to electrokinetic cell carries out demarcation test, obtain one group of temperature value, current value, the charging interval and
The step of corresponding relation between magnitude of voltage, includes：
Electrokinetic cell is pre-processed；
Standard is carried out to electrokinetic cell and is discharged to first predetermined value, the first predetermined value is less than or equal to 10%SOC；
Standard charging is carried out to electrokinetic cell to 70%SOC；
Electrokinetic cell is charged using a certain current value under a certain temperature value, obtain one group of temperature value, current value,
Corresponding relation between charging interval and magnitude of voltage.
Preferably, the electric discharge to electrokinetic cell carries out demarcation test, obtain one group of temperature value, current value, discharge time and
The step of corresponding relation between magnitude of voltage, includes：
Electrokinetic cell is pre-processed；
Standard charging to second predetermined value, the second predetermined value is carried out to electrokinetic cell and is more than or equal to 90%SOC；
Standard is carried out to electrokinetic cell and is discharged to 30%SOC；
Electrokinetic cell is discharged using a certain current value under a certain temperature value, obtain one group of temperature value, current value,
Corresponding relation between discharge time and magnitude of voltage.
Preferably, described the step of being pre-processed to electrokinetic cell is to carry out at room temperature, including：
Step Sa：At room temperature, charge cutoff condition as defined in supplier is charged to or according to confession with 1C to electrokinetic cell
The charging mechanism for answering business to recommend is charged；
Step Sb：Electric discharge cut-off condition as defined in supplier is discharged to or according to supplier's recommendation with 1C to electrokinetic cell
Discharge mechanism is discharged；
Step Sc：More times of repeat step Sa to Sb, judges whether discharge capacity change twice in succession is not higher than specified appearance
The 3% of amount；
Step Sd：If not higher than the 3% of rated capacity, the result that the pretreatment to electrokinetic cell is completed is obtained.
Preferably, it is described that the step of standard is discharged to first predetermined value is carried out to electrokinetic cell and described electrokinetic cell is entered
The step of standard described in the step of rower standard is discharged to 30%SOC is discharged is to carry out at room temperature, including：
Discharge cut-off condition or the Electrical Discharge Machine according to supplier's recommendation are discharged to as defined in supplier with 1C to electrokinetic cell
System is discharged；
Obtain the result discharged the standard of electrokinetic cell and completed.
Preferably, it is described to electrokinetic cell carry out standard charging to the step of 70%SOC and it is described to electrokinetic cell carry out
Standard charging to being to carry out at room temperature the step of standard charging described in the step of second predetermined value, including：
Charge cutoff condition as defined in supplier or the charger recommended according to supplier are charged to 1C to electrokinetic cell
System is charged；
Obtain the result completed to the standard charging of electrokinetic cell.
Preferably, described a period of time is 20-40 minutes.
Preferably, it is further comprising the steps of：
Obtain the corresponding relation between the current value of the electrokinetic cell and speed；
According to the corresponding relation between the temperature value of the electrokinetic cell, current value and voltage protection threshold value, by the electricity
Corresponding relation between flow valuve and speed substitutes into, between the temperature value, speed and the voltage protection threshold value that obtain the electrokinetic cell
Corresponding relation；
Receive the actual vehicle speed of the electrokinetic cell；
According to the corresponding relation between the temperature value, speed and voltage protection threshold value, obtain and the actual temperature value
The dynamic electric voltage rotection thresholds corresponding with actual vehicle speed.
A kind of device of offer dynamic electric voltage rotection thresholds of the present invention, including：
First corresponding relation obtaining unit, for carrying out demarcation test to electrokinetic cell, obtain the temperature of the electrokinetic cell
Corresponding relation between angle value, current value and voltage protection threshold value；
Actual temperature value and actual current value receiving unit, for receiving the actual temperature value and reality of the electrokinetic cell
Current value；
First dynamic electric voltage rotection thresholds obtaining unit, for according to the temperature value, current value and voltage protection threshold value
Between corresponding relation, obtain dynamic electric voltage rotection thresholds corresponding with the actual temperature value and actual current value.
Preferably, the first corresponding relation obtaining unit includes：
Second corresponding relation obtaining unit, demarcation test is carried out for the charge or discharge to electrokinetic cell, obtains temperature
Between corresponding relation or temperature value, current value, discharge time and magnitude of voltage between value, current value, charging interval and magnitude of voltage
Corresponding relation, it is minimum during electric discharge to allow the discharge voltage value to be wherein maximum permissible voltage value be charge cutoff voltage during charging
Discharge cut-off voltage, the charging interval corresponding with the charge cutoff voltage value are the charge cutoff time, are cut with the electric discharge
Only magnitude of voltage corresponding discharge time is electric discharge deadline；
Processing time receiving unit, for receiving required reserved processing time；
3rd corresponding relation obtaining unit, for according between the temperature value, current value, charging interval and magnitude of voltage
Corresponding relation between corresponding relation or temperature value, current value, discharge time and magnitude of voltage is with reference to the required reserved processing
Time, obtain corresponding relation or temperature value, current value and electric discharge electricity between temperature value, current value and charging voltage rotection thresholds
The corresponding relation between rotection thresholds is pressed, the charging voltage rotection thresholds are the magnitudes of voltage corresponding with the first charging interval,
The discharge voltage rotection thresholds are the magnitudes of voltage corresponding with the first discharge time, and first charging interval is the charging
The difference of deadline and the required reserved processing time；First discharge time is the electric discharge deadline and institute
The difference of reserved processing time needed for stating.
Preferably, the second corresponding relation obtaining unit also includes the first demarcation test cell, and first demarcation is surveyed
The charging that examination unit is used for electrokinetic cell carries out demarcation test, obtains one group of temperature value, current value, charging interval and magnitude of voltage
Between corresponding relation, it is described first demarcation test cell include：
First pretreatment unit, for being pre-processed to electrokinetic cell；
First discharge cell, first predetermined value is discharged to for carrying out standard to electrokinetic cell, the first predetermined value is small
In or equal to 10%SOC；
First charhing unit, for carrying out standard charging to 70%SOC to electrokinetic cell；
Charging and corresponding relation acquiring unit, for using a certain current value to carry out electrokinetic cell under a certain temperature value
Charging, obtain the corresponding relation between one group of temperature value, current value, charging interval and magnitude of voltage.
Preferably, the second corresponding relation obtaining unit also includes the second demarcation test cell, and second demarcation is surveyed
The electric discharge that examination unit is used for electrokinetic cell carries out demarcation test, obtains one group of temperature value, current value, discharge time and magnitude of voltage
Between corresponding relation, it is described second demarcation test cell include：
Second pretreatment unit, for being pre-processed to electrokinetic cell；
Second charhing unit is big to second predetermined value, the second predetermined value for carrying out standard charging to electrokinetic cell
In or equal to 90%SOC；
Second discharge cell, 30%SOC is discharged to for carrying out standard to electrokinetic cell；
Electric discharge and corresponding relation acquiring unit, for using a certain current value to carry out electrokinetic cell under a certain temperature value
Electric discharge, obtain the corresponding relation between one group of temperature value, current value, discharge time and magnitude of voltage.
Preferably, first, second pretreatment unit is pre-processed at room temperature, including：
3rd charhing unit, for charging to charge cutoff condition as defined in supplier or according to confession to electrokinetic cell with 1C
The charging mechanism for answering business to recommend is charged；
3rd discharge cell, for being discharged to electric discharge cut-off condition as defined in supplier or according to confession to electrokinetic cell with 1C
The discharge mechanism for answering business to recommend is discharged；
Repetition and judging unit, it is multiple for repeating the 3rd charhing unit and the 3rd discharge cell, judge continuous two
Whether secondary discharge capacity change is not higher than the 3% of rated capacity；
Pre-processed results obtaining unit, if for 3% not higher than rated capacity, the pretreatment obtained to electrokinetic cell is complete
Into result.
Preferably, first discharge cell and the second discharge cell include standard discharge cell, the standard electric discharge
Unit is progress standard electric discharge at room temperature, including：
4th discharge cell, for being discharged to electric discharge cut-off condition as defined in supplier or according to confession to electrokinetic cell with 1C
The discharge mechanism for answering business to recommend is discharged；
Standard electric discharge result obtaining unit, the result that the standard electric discharge for obtaining to electrokinetic cell is completed.
Preferably, first charhing unit and the second charhing unit include standard charging unit, the standard charging
Unit is to carry out standard charging at room temperature, including：
4th charhing unit, for charging to charge cutoff condition as defined in supplier or according to confession to electrokinetic cell with 1C
The charging mechanism for answering business to recommend is charged；
Standard charging result obtaining unit, the result that the standard charging for obtaining to electrokinetic cell is completed.
Preferably, described a period of time is 20-40 minutes.
Preferably, in addition to：
4th corresponding relation obtaining unit, for obtaining the corresponding pass between the current value of the electrokinetic cell and speed
System；
5th corresponding relation obtaining unit, for the temperature value according to the electrokinetic cell, current value and voltage protection threshold
Corresponding relation between value, the corresponding relation between the current value and speed is substituted into, obtain the temperature of the electrokinetic cell
Corresponding relation between value, speed and voltage protection threshold value；
Actual vehicle speed receiving unit, for receiving the actual vehicle speed of the electrokinetic cell；
Second dynamic electric voltage rotection thresholds obtaining unit, for according to the temperature value, speed and voltage protection threshold value it
Between corresponding relation, obtain dynamic electric voltage rotection thresholds corresponding with the actual temperature value and actual vehicle speed.
The above-mentioned technical proposal of the present invention has advantages below compared with prior art：
By carrying out demarcation test to electrokinetic cell in the present invention, temperature value, the current value of electrokinetic cell are obtained first
Corresponding relation between voltage protection threshold value, then according to the temperature value and current value of reality, it is possible to obtain and the reality
Temperature value and the corresponding dynamic electric voltage rotection thresholds of current value, the dynamic electric voltage rotection thresholds are realized under any current value
All without by moment above or below so that no matter electric current is how many when, time enough can be reserved to driver
Go processing to alarm, reduce and report out of order frequency, avoid and continually disconnect high-voltage relay, so as to substantially increase what is driven
Security.
Demarcation test is carried out by the charge or discharge to electrokinetic cell in the present invention, temperature value, current value is obtained, fills
Electricity or the corresponding relation between discharge time and magnitude of voltage, and reserved processing time needed for withing reference to, can according to vehicle tyre,
The hardware devices such as brake system or the actual conditions of required brake processing time etc., the processing time reserved needed for setting, so as to
The corresponding relation between the temperature value, current value and voltage protection threshold value that disclosure satisfy that different vehicle demand is obtained, is somebody's turn to do with improving
The applicability of corresponding relation.
By series of steps such as pretreatment, standard charging, electric discharges in the present invention, implement effectively to electrokinetic cell
The specific demarcation method of testing of charge or discharge, so as to improve obtained temperature value, current value, the charge or discharge time and
The precision of corresponding relation between magnitude of voltage, it further ensure that the accuracy of the dynamic electric voltage rotection thresholds of required acquisition.
The step of being discharged in the present invention by the pretreatment of particular design, standard charging, standard, can preferably excite dynamic
The activity of power battery, it ensure that the validity and accuracy for the various tests implemented to it.
Also temperature value, electricity are substituted into the present invention by obtaining the corresponding relation between the current value of electrokinetic cell and speed
Corresponding relation between flow valuve and voltage protection threshold value, to obtain the corresponding pass between temperature value, speed and voltage protection threshold value
System, so as to which voltage protection threshold value is set dynamically using speed, more effectively to remind driver to take corresponding measure in advance,
Avoid electrokinetic cell from overcharging, cross and put, while avoid frequently quoting overtension, too low catastrophe failure, cause to disconnect high-voltage relay
Device.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, specific embodiment and combination below according to the present invention
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is a kind of flow chart of the method for offer dynamic electric voltage rotection thresholds of the embodiment of the present invention 1；
Fig. 2 is a kind of flow chart of preferred embodiment of the embodiment of the present invention 1；
Fig. 3 is the curve map of charging interval-magnitude of voltage under the conditions of 25 DEG C, 1C that the present invention obtains；
Fig. 4 is a kind of flow chart of the method for offer dynamic electric voltage rotection thresholds of the embodiment of the present invention 1；
Fig. 5 is a kind of structured flowchart of the device of offer dynamic electric voltage rotection thresholds of the embodiment of the present invention 2.
Embodiment
The (if present)s such as term " first ", " second ", " the 3rd ", " the 4th " in present specification are used to want similar
Distinguished between element, and be not necessarily and describe specific order or order temporally.It is appreciated that this so used
A little terms are interchangeable under appropriate environment so that the implementation of theme described here be, for example, can with those explanations
Order different order or operated with other order described here.
A kind of flow chart of the method for the offer dynamic electric voltage rotection thresholds of embodiment with reference to figure 1, this method include with
Lower step：
Step S1：Demarcation test is carried out to electrokinetic cell, the temperature value, current value and voltage for obtaining the electrokinetic cell are protected
The corresponding relation protected between threshold value.
Step S2：Receive the actual temperature value and actual current value of the electrokinetic cell.
Step S3：According to the corresponding relation between the temperature value, current value and voltage protection threshold value, obtain and the reality
Border temperature value and the corresponding dynamic electric voltage rotection thresholds of actual current value.
By carrying out demarcation test to electrokinetic cell in the present embodiment, temperature value, the electric current of electrokinetic cell are obtained first
Corresponding relation between value and voltage protection threshold value, then according to the temperature value and current value of reality, it is possible to obtain and the reality
Border temperature value and the corresponding dynamic electric voltage rotection thresholds of current value, the dynamic electric voltage rotection thresholds are realized in any current value
Under all without by moment above or below so that no matter electric current is how many when, when can reserve enough to driver
Between go processing to alarm, reduce and report out of order frequency, avoid and continually disconnect high-voltage relay, driven so as to substantially increase
Security.
As a kind of preferred embodiment, as shown in Fig. 2 above-mentioned carry out demarcation test to electrokinetic cell, obtain described dynamic
The step of corresponding relation between the temperature value of power battery, current value and voltage protection threshold value, includes：
Step S11：Charge or discharge to electrokinetic cell carry out demarcation test, obtain temperature value, current value, charging interval
The corresponding relation between corresponding relation or temperature value, current value, discharge time and magnitude of voltage between magnitude of voltage, wherein charging
When maximum permissible voltage value be charge cutoff voltage, minimum permission discharge voltage value is discharge cut-off voltage during electric discharge, and described
The charge cutoff voltage value corresponding charging interval is the charge cutoff time, the electric discharge corresponding with discharge cut-off voltage value
Time is electric discharge deadline.
Step S12：The processing time reserved needed for reception.Preferably, the processing time can be from vehicle in different electricity
The mean deceleration time flowed down be arranged to it is equal, the mean deceleration time can pass through vehicle demarcation obtain.
Step S13：According to the corresponding relation between the temperature value, current value, charging interval and magnitude of voltage or temperature value,
Corresponding relation between current value, discharge time and magnitude of voltage obtains temperature value, electricity with reference to the required reserved processing time
Pair between corresponding relation or temperature value, current value and discharge voltage rotection thresholds between flow valuve and charging voltage rotection thresholds
It should be related to, the charging voltage rotection thresholds are the magnitudes of voltage corresponding with the first charging interval, and the discharge voltage protects threshold
Value is the magnitude of voltage corresponding with the first discharge time, first charging interval be the charge cutoff time with it is described required
The difference of reserved processing time；First discharge time be the electric discharge deadline with the required reserved processing when
Between difference.
Carry out demarcation test by the charge or discharge to electrokinetic cell in the present embodiment, obtain temperature value, current value,
Corresponding relation between charge or discharge time and magnitude of voltage, and the processing time reserved with reference to needed for, can be according to vehicle wheel
The hardware devices such as tire, brake system or the actual conditions of required brake processing time etc., the processing time reserved needed for setting, from
And the corresponding relation between the temperature value, current value and voltage protection threshold value that disclosure satisfy that different vehicle demand is obtained, to improve
The applicability of the corresponding relation.
As a kind of preferred embodiment, the charging to electrokinetic cell carries out demarcation test, obtains one group of temperature value, electric current
The step of corresponding relation between value, charging interval and magnitude of voltage, includes：
Step S111：Electrokinetic cell is pre-processed；Preferably, can be with quiet after being pre-processed to electrokinetic cell
Following step is carried out again after putting a period of time.Preferably, it is for a period of time 20-40 minutes, it is further preferred that a period of time is
30 minutes.A period of time hereinafter can also refer to this and preferably be configured.Cell voltage can be anti-at the end of due to firm charge and discharge
Bullet, in other words inside battery electrochemical reaction be immediately finished not as charge and discharge terminate, electrochemistry after a period of time
Reaction is just small to that can ignore without influenceing cell voltage, so after standing a period of time, can cause the electricity of electrokinetic cell
Pressure is more stable, and the corresponding relation obtained during demarcation is more accurate, improves measurement accuracy.
Step S112：Standard is carried out to electrokinetic cell and is discharged to first predetermined value, the first predetermined value is less than or equal to
10%SOC, it is preferable that standard is carried out to electrokinetic cell and is discharged to 0%SOC.Preferably, standard is carried out to electrokinetic cell to be discharged to
After first predetermined value, it can continue to carry out following step again after standing a period of time.
Step S113：Standard charging is carried out to electrokinetic cell to 70%SOC, it is preferable that standing one can be further continued for afterwards
Following step is carried out again after the section time.
Step S114：Electrokinetic cell is charged using a certain current value under a certain temperature value, obtains one group of temperature
Corresponding relation between value, current value, charging interval and magnitude of voltage.
After above-mentioned steps S111-S114 has been performed, other current values can also be used under the temperature value to power
Battery is charged, and obtains the corresponding relation between other group of temperature value, current value, charging interval and magnitude of voltage, is made every time
Before being charged with other current values to electrokinetic cell, the step of first needing to repeat above-mentioned S112-S113.
For example, at 25 DEG C, charging demarcation testing procedure is as shown in the table：
As seen from the above table, charge cutoff voltage value is that (represent highest allows charging voltage to 4.2V, and its value can be according to not
Adjusted accordingly with system battery core), obtain and filled under the conditions of 25 DEG C with different current values (1C, 3C, 5C, 7C, 10C)
The curve of charging interval-magnitude of voltage of electricity.(such as -20 DEG C, 0 DEG C, 40 DEG C, 55 DEG C) can also be implemented above-mentioned under other temperature values
Step process, to obtain the curve of the charging interval charged under other temperature conditionss with different current values-magnitude of voltage.
Below by acquisition under the conditions of 25 DEG C, 1C exemplified by the curve of charging interval-magnitude of voltage, to obtaining electrokinetic cell
Corresponding relation between temperature value, current value and voltage protection threshold value is described in detail.The curve is as shown in Figure 3.
From in Fig. 3, the charge cutoff time corresponding to charge cutoff voltage value 4.2V is 10s, if vehicle is averaged
Deceleration time is 2s, then the first charging interval of acquisition is 10s-2s=8s, and the magnitude of voltage 4V corresponding with 8s is arranged to voltage
Rotection thresholds, i.e., it is 25 DEG C in temperature, the high alarm threshold value of voltage should be arranged to 4V when electric current is 1C, and now vehicle has subtracting for 2s
Fast time, prevention voltage reach highest limit value and report failure, and then avoid breaking high-voltage relay because failure is quoted.
As another preferred embodiment, the electric discharge to electrokinetic cell carries out demarcation test, obtains one group of temperature value, electricity
The step of corresponding relation between flow valuve, discharge time and magnitude of voltage, includes：
Step S111 '：Electrokinetic cell is pre-processed；Preferably, can be with quiet after being pre-processed to electrokinetic cell
Following step is carried out again after putting a period of time.
Step S112 '：Standard charging to second predetermined value, the second predetermined value is carried out to electrokinetic cell to be more than or equal to
90%SOC；Preferably, standard charging is carried out to electrokinetic cell to 100%SOC.Preferably, standard electric discharge is carried out to electrokinetic cell
To first predetermined value, can continue to carry out following step again after standing a period of time.
Step S113 '：Standard is carried out to electrokinetic cell and is discharged to 30%SOC；Preferably, standing one can be further continued for afterwards
Following step is carried out again after the section time.
Step S114 '：Electrokinetic cell is discharged using a certain current value under a certain temperature value, obtains one group of temperature
Corresponding relation between value, current value, discharge time and magnitude of voltage.
After above-mentioned steps S111 '-S114 ' have been performed, other current values can also be used under the temperature value to dynamic
Power battery is discharged, and the corresponding relation between other group of temperature value, current value, discharge time and magnitude of voltage is obtained, each
Before being discharged using other current values electrokinetic cell, the step of first needing to repeat above-mentioned S112 '-S113 '.
For example, at 25 DEG C, electric discharge demarcation testing procedure is as shown in the table：
As seen from the above table, discharge cut-off voltage value is that 2.75V (represents minimum permission discharge voltage, its value can basis
Different system battery cores adjust accordingly), obtain and carried out under the conditions of 25 DEG C with different current values (1C, 3C, 5C, 7C, 10C)
The curve of the discharge time of electric discharge-magnitude of voltage.On (such as -20 DEG C, 0 DEG C, 40 DEG C, 55 DEG C) can also be implemented under other temperature values
Step process is stated, to obtain the curve of the discharge time discharged under other temperature conditionss with different current values-magnitude of voltage.
It will be understood by those of skill in the art that the demarcation method of testing of the charge or discharge to electrokinetic cell is not limited to
State specific testing procedure, also by the charge or discharge that can realize to electrokinetic cell can demarcate the other method of test Lai
Realize.
By series of steps such as pretreatment, standard charging, electric discharges in the present embodiment, implement effectively to electrokinetic cell
Charge or discharge specific demarcation method of testing, so as to improve obtained temperature value, current value, charge or discharge time
The precision of corresponding relation between magnitude of voltage, further ensure that required acquisition dynamic electric voltage rotection thresholds it is accurate
Property.
As a kind of embodiment, the pre-treatment step in above-mentioned steps S111 and step S111 ' is specially：Pre- place
Reason is to carry out at room temperature, is comprised the following steps：
Step Sa：Charge cutoff condition as defined in supplier is charged to or according to supplier's recommendation with 1C to electrokinetic cell
Charging mechanism is charged；Preferably, following step is carried out after a period of time can be stood afterwards again.
Step Sb：Electric discharge cut-off condition as defined in supplier is discharged to or according to supplier's recommendation with 1C to electrokinetic cell
Discharge mechanism is discharged；Preferably, can continue to carry out following step again after standing a period of time afterwards.
Step Sc：More times of repeat step Sa to Sb, judges whether discharge capacity change twice in succession is not higher than specified appearance
The 3% of amount；Preferably, it is above-mentioned repeatedly for more than three times.
Step Sd：If not higher than the 3% of rated capacity, the result that the pretreatment to electrokinetic cell is completed is obtained, that is, is thought
Electrokinetic cell completes pretreatment, and pretreatment circulation can stop.
As a kind of embodiment, the circulation of test process Plays is to carry out at room temperature, according to sequencing bag
Include a standard discharge process and a standard charging process, the step of the standard electric discharge in above-mentioned steps S112 and step S113 '
Suddenly it is to carry out at room temperature, including：
Discharge cut-off condition or the Electrical Discharge Machine according to supplier's recommendation are discharged to as defined in supplier with 1C to electrokinetic cell
System is discharged；
Obtain the result discharged the standard of electrokinetic cell and completed.Preferably, after a period of time being stood, then obtain pair
The result that the standard electric discharge of electrokinetic cell is completed.
The step of standard charging in above-mentioned steps S113 and step S112 ' is to carry out at room temperature, including：
Charge cutoff condition as defined in supplier or the charger recommended according to supplier are charged to 1C to electrokinetic cell
System is charged；
Obtain the result completed to the standard charging of electrokinetic cell.Preferably, after a period of time being stood, obtain to dynamic
The result that the standard charging of power battery is completed.
If time interval is longer than 24 hours between standard cycle and a new test, need to re-start a deutero-albumose
Quasi- charging.
It will be understood by those of skill in the art that the method for the pretreatment, standard charging and standard electric discharge to electrokinetic cell
Be not limited to above-mentioned specific method and step, also can by can realize electrokinetic cell is pre-processed, standard charging and standard are put
The other method of electricity is realized.
The step of being discharged in the present embodiment by the pretreatment of particular design, standard charging, standard, can preferably excite
The activity of electrokinetic cell, it ensure that the validity and accuracy for the various tests implemented to it.
Preferably, as shown in figure 4, a kind of method of offer dynamic electric voltage rotection thresholds of the present embodiment also includes following step
Suddenly：
Step S4：Obtain the corresponding relation between the current value of the electrokinetic cell and speed；The corresponding relation can pass through
Vehicle is demarcated to obtain.
Step S5：, will according to the corresponding relation between the temperature value of the electrokinetic cell, current value and voltage protection threshold value
Corresponding relation between the current value and speed substitutes into, and obtains temperature value, speed and the voltage protection threshold of the electrokinetic cell
Corresponding relation between value.
Step S6：Receive the actual vehicle speed of the electrokinetic cell.
Step S7：According to the corresponding relation between the temperature value, speed and voltage protection threshold value, obtain and the reality
Temperature value and the corresponding dynamic electric voltage rotection thresholds of actual vehicle speed.
Also by obtaining the corresponding relation between the current value of electrokinetic cell and speed in the present embodiment, substitute into temperature value,
Corresponding relation between current value and voltage protection threshold value, to obtain the correspondence between temperature value, speed and voltage protection threshold value
Relation, so as to which voltage protection threshold value is set dynamically using speed, accordingly arranged with more effectively reminding driver to take in advance
Apply, avoid electrokinetic cell from overcharging, cross and put, while avoid frequently quoting overtension, too low catastrophe failure, cause to disconnect high pressure after
Electrical equipment.
It is a kind of structured flowchart of the device of offer dynamic electric voltage rotection thresholds of embodiment 2, such as Fig. 5 institutes with reference to figure 5
State, the device includes：
First corresponding relation obtaining unit 1, for carrying out demarcation test to electrokinetic cell, obtain the temperature of the electrokinetic cell
Corresponding relation between angle value, current value and voltage protection threshold value；
Actual temperature value and actual current value receiving unit 2, for receiving the actual temperature value and reality of the electrokinetic cell
Border current value；
First dynamic electric voltage rotection thresholds obtaining unit 3, for according to the temperature value, current value and voltage protection threshold value
Between corresponding relation, obtain dynamic electric voltage rotection thresholds corresponding with the actual temperature value and actual current value.
By carrying out demarcation test to electrokinetic cell in the present embodiment, temperature value, the electric current of electrokinetic cell are obtained first
Corresponding relation between value and voltage protection threshold value, then according to the temperature value and current value of reality, it is possible to obtain and the reality
Border temperature value and the corresponding dynamic electric voltage rotection thresholds of current value, the dynamic electric voltage rotection thresholds are realized in any current value
Under all without by moment above or below so that no matter electric current is how many when, when can reserve enough to driver
Between go processing to alarm, reduce and report out of order frequency, avoid and continually disconnect high-voltage relay, driven so as to substantially increase
Security.
Preferably, above-mentioned first corresponding relation obtaining unit specifically includes：
Second corresponding relation obtaining unit, demarcation test is carried out for the charge or discharge to electrokinetic cell, obtains temperature
Between corresponding relation or temperature value, current value, discharge time and magnitude of voltage between value, current value, charging interval and magnitude of voltage
Corresponding relation, it is minimum during electric discharge to allow the discharge voltage value to be wherein maximum permissible voltage value be charge cutoff voltage during charging
Discharge cut-off voltage, the charging interval corresponding with the charge cutoff voltage value are the charge cutoff time, are cut with the electric discharge
Only magnitude of voltage corresponding discharge time is electric discharge deadline.
Processing time receiving unit, for receiving required reserved processing time.
3rd corresponding relation obtaining unit, for according between the temperature value, current value, charging interval and magnitude of voltage
Corresponding relation between corresponding relation or temperature value, current value, discharge time and magnitude of voltage is with reference to the required reserved processing
Time, obtain corresponding relation or temperature value, current value and electric discharge electricity between temperature value, current value and charging voltage rotection thresholds
The corresponding relation between rotection thresholds is pressed, the charging voltage rotection thresholds are the magnitudes of voltage corresponding with the first charging interval,
The discharge voltage rotection thresholds are the magnitudes of voltage corresponding with the first discharge time, and first charging interval is the charging
The difference of deadline and the required reserved processing time；First discharge time is the electric discharge deadline and institute
The difference of reserved processing time needed for stating.
Carry out demarcation test by the charge or discharge to electrokinetic cell in the present embodiment, obtain temperature value, current value,
Corresponding relation between charge or discharge time and magnitude of voltage, and the processing time reserved with reference to needed for, can be according to vehicle wheel
The hardware devices such as tire, brake system or the actual conditions of required brake processing time etc., the processing time reserved needed for setting, from
And the corresponding relation between the temperature value, current value and voltage protection threshold value that disclosure satisfy that different vehicle demand is obtained, to improve
The applicability of the corresponding relation.
As a kind of preferred embodiment, above-mentioned second corresponding relation obtaining unit also includes the first demarcation test cell,
The charging that above-mentioned first demarcation test cell is used for electrokinetic cell carries out demarcation test, obtains one group of temperature value, current value, fills
Corresponding relation between electric time and magnitude of voltage, the first demarcation test cell include：
First pretreatment unit, for being pre-processed to electrokinetic cell；
First discharge cell, first predetermined value is discharged to for carrying out standard to electrokinetic cell, the first predetermined value is small
In or equal to 10%SOC；
First charhing unit, for carrying out standard charging to 70%SOC to electrokinetic cell；
Charging and corresponding relation acquiring unit, for using a certain current value to carry out electrokinetic cell under a certain temperature value
Charging, obtain the corresponding relation between one group of temperature value, current value, charging interval and magnitude of voltage.
Above-mentioned second corresponding relation obtaining unit also includes other the first demarcation test cells, and other the first demarcation tests are single
Member is used to charge to electrokinetic cell using other current values under the temperature value, obtains other group of temperature value, current value, fills
Corresponding relation between electric time and magnitude of voltage.
As another preferred embodiment, it is single that above-mentioned second corresponding relation obtaining unit also includes the second demarcation test
Member, the electric discharge that the second demarcation test cell is used for electrokinetic cell carry out demarcation test, obtain one group of temperature value, current value, put
Corresponding relation between electric time and magnitude of voltage, the second demarcation test cell include：
Second pretreatment unit, for being pre-processed to electrokinetic cell；
Second charhing unit is big to second predetermined value, the second predetermined value for carrying out standard charging to electrokinetic cell
In or equal to 90%SOC；
Second discharge cell, 30%SOC is discharged to for carrying out standard to electrokinetic cell；
Electric discharge and corresponding relation acquiring unit, for using a certain current value to carry out electrokinetic cell under a certain temperature value
Electric discharge, obtain the corresponding relation between one group of temperature value, current value, discharge time and magnitude of voltage.
Above-mentioned second corresponding relation obtaining unit also includes other the second demarcation test cells, and other the second demarcation tests are single
Member is used to discharge to electrokinetic cell using other current values under the temperature value, obtains other group of temperature value, current value, puts
Corresponding relation between electric time and magnitude of voltage.
As a kind of embodiment, above-mentioned first, second pretreatment unit is pre-processed at room temperature, bag
Include：
3rd charhing unit, for charging to charge cutoff condition as defined in supplier or according to confession to electrokinetic cell with 1C
The charging mechanism for answering business to recommend is charged；
3rd discharge cell, for being discharged to electric discharge cut-off condition as defined in supplier or according to confession to electrokinetic cell with 1C
The discharge mechanism for answering business to recommend is discharged；
Repetition and judging unit, it is multiple for repeating above-mentioned 3rd charhing unit and the 3rd discharge cell, judge continuous two
Whether secondary discharge capacity change is not higher than the 3% of rated capacity；
Pre-processed results obtaining unit, if for 3% not higher than rated capacity, the pretreatment obtained to electrokinetic cell is complete
Into result.
As a kind of embodiment, it is single that above-mentioned first discharge cell and the second discharge cell include standard electric discharge
Member, standard discharge cell are progress standard electric discharges at room temperature, including：
4th discharge cell, for being discharged to electric discharge cut-off condition as defined in supplier or according to confession to electrokinetic cell with 1C
The discharge mechanism for answering business to recommend is discharged；
Standard electric discharge result obtaining unit, the result that the standard electric discharge for obtaining to electrokinetic cell is completed.
Above-mentioned first charhing unit and the second charhing unit include standard charging unit, and standard charging unit is in room temperature
It is lower carrying out standard charging, including：
4th charhing unit, for charging to charge cutoff condition as defined in supplier or according to confession to electrokinetic cell with 1C
The charging mechanism for answering business to recommend is charged；
Standard charging result obtaining unit, the result that the standard charging for obtaining to electrokinetic cell is completed.
If time interval is longer than 24 hours between standard cycle and a new test, need to re-start a deutero-albumose
Quasi- charging.
It will be understood by those of skill in the art that the method for the pretreatment, standard charging and standard electric discharge to electrokinetic cell
Be not limited to above-mentioned specific method and step, also can by can realize electrokinetic cell is pre-processed, standard charging and standard are put
The other method of electricity is realized.
By the pretreatment of particular design, standard charging, standard discharge cell in the present embodiment, can preferably excite dynamic
The activity of power battery, it ensure that the validity and accuracy for the various tests implemented to it.
Preferably, a kind of device of offer dynamic electric voltage rotection thresholds of the present embodiment also includes：
4th corresponding relation obtaining unit, for obtaining the corresponding pass between the current value of the electrokinetic cell and speed
System.
5th corresponding relation obtaining unit, for the temperature value according to the electrokinetic cell, current value and voltage protection threshold
Corresponding relation between value, the corresponding relation between the current value and speed is substituted into, obtain the temperature of the electrokinetic cell
Corresponding relation between value, speed and voltage protection threshold value.
Actual vehicle speed receiving unit, for receiving the actual vehicle speed of the electrokinetic cell.
Second dynamic electric voltage rotection thresholds obtaining unit, for according to the temperature value, speed and voltage protection threshold value it
Between corresponding relation, obtain dynamic electric voltage rotection thresholds corresponding with the actual temperature value and actual vehicle speed.
Also by obtaining the corresponding relation between the current value of electrokinetic cell and speed in the present embodiment, substitute into temperature value,
Corresponding relation between current value and voltage protection threshold value, to obtain the correspondence between temperature value, speed and voltage protection threshold value
Relation, so as to which voltage protection threshold value is set dynamically using speed, accordingly arranged with more effectively reminding driver to take in advance
Apply, avoid electrokinetic cell from overcharging, cross and put, while avoid frequently quoting overtension, too low catastrophe failure, cause to disconnect high pressure after
Electrical equipment.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (9)
- A kind of 1. method that dynamic electric voltage rotection thresholds are provided, it is characterised in that comprise the following steps：Demarcation test is carried out to electrokinetic cell, between the temperature value, current value and voltage protection threshold value that obtain the electrokinetic cell Corresponding relation；Charge or discharge to electrokinetic cell carry out demarcation test, obtain temperature value, current value, charging interval and electricity The corresponding relation between corresponding relation or temperature value, current value, discharge time and magnitude of voltage between pressure value, wherein during charging most Height allows magnitude of voltage be charge cutoff voltage, minimum during electric discharge to allow discharge voltage value to be discharge cut-off voltage, with the charging The blanking voltage corresponding charging interval is the charge cutoff time, and the discharge time corresponding with the discharge cut-off voltage is to put Electric deadline；The processing time reserved needed for reception；According between the temperature value, current value, charging interval and magnitude of voltage Corresponding relation or temperature value, current value, discharge time and magnitude of voltage between corresponding relation with reference to the required reserved place Manage the time, corresponding relation or temperature value, current value and electric discharge between acquisition temperature value, current value and charging voltage rotection thresholds Corresponding relation between voltage protection threshold value, the charging voltage rotection thresholds are the voltage corresponding with the first charging interval Value, the discharge voltage rotection thresholds are the magnitudes of voltage corresponding with the first discharge time, and first charging interval is described The difference of charge cutoff time and the required reserved processing time；First discharge time is the electric discharge deadline With the difference of the required reserved processing time；Receive the actual temperature value and actual current value of the electrokinetic cell；According to the corresponding relation between the temperature value, current value and voltage protection threshold value, obtain with the actual temperature value and The corresponding dynamic electric voltage rotection thresholds of actual current value.
- 2. according to the method for claim 1, it is characterised in that the charging to electrokinetic cell carries out demarcation test, obtains one The step of organizing the corresponding relation between temperature value, current value, charging interval and magnitude of voltage includes：Electrokinetic cell is pre-processed；Standard is carried out to electrokinetic cell and is discharged to first predetermined value, the first predetermined value is less than or equal to 10%SOC；Standard charging is carried out to electrokinetic cell to 70%SOC；Electrokinetic cell is charged using a certain current value under a certain temperature value, obtains one group of temperature value, current value, charging Corresponding relation between time and magnitude of voltage.
- 3. according to the method for claim 1, it is characterised in that the electric discharge to electrokinetic cell carries out demarcation test, obtains one The step of organizing the corresponding relation between temperature value, current value, discharge time and magnitude of voltage includes：Electrokinetic cell is pre-processed；Standard charging to second predetermined value, the second predetermined value is carried out to electrokinetic cell and is more than or equal to 90%SOC；Standard is carried out to electrokinetic cell and is discharged to 30%SOC；Electrokinetic cell is discharged using a certain current value under a certain temperature value, obtains one group of temperature value, current value, electric discharge Corresponding relation between time and magnitude of voltage.
- 4. according to the method in claim 2 or 3, it is characterised in that described the step of being pre-processed to electrokinetic cell is Carry out at room temperature, including：Step Sa：Charge cutoff condition as defined in supplier or the charging recommended according to supplier are charged to 1C to electrokinetic cell Mechanism is charged；Step Sb：Discharge cut-off condition or the electric discharge according to supplier's recommendation are discharged to as defined in supplier with 1C to electrokinetic cell Mechanism is discharged；Step Sc：More times of repeat step Sa to Sb, judge discharge capacity change twice in succession whether not higher than rated capacity 3%；Step Sd：If not higher than the 3% of rated capacity, the result that the pretreatment to electrokinetic cell is completed is obtained.
- 5. according to the method for claim 4, it is characterised in that described standard to be carried out to electrokinetic cell to be discharged to first predetermined The step of value and described the step of standard electric discharge described in the step of standard is discharged to 30%SOC is carried out to electrokinetic cell are in room Temperature is lower to be carried out, including：Electric discharge cut-off condition as defined in supplier is discharged to 1C to electrokinetic cell or the discharge mechanism recommended according to supplier enters Row electric discharge；Obtain the result discharged the standard of electrokinetic cell and completed.
- 6. according to the method for claim 4, it is characterised in that the standard charging that carried out to electrokinetic cell is to 70%SOC The step of and it is described to electrokinetic cell carry out standard charging to be the step of standard charging described in the step of second predetermined value Carry out at room temperature, including：The charging mechanism for charging to charge cutoff condition as defined in supplier with 1C to electrokinetic cell or recommending according to supplier enters Row charging；Obtain the result completed to the standard charging of electrokinetic cell.
- 7. the method according to claim 5 or 6, it is characterised in that after being pre-processed to electrokinetic cell, stand 20- 40 minutes.
- 8. according to the method described in claim 1 or 2 or 3, it is characterised in that further comprising the steps of：Obtain the corresponding relation between the current value of the electrokinetic cell and speed；According to the corresponding relation between the temperature value of the electrokinetic cell, current value and voltage protection threshold value, by the current value Corresponding relation between speed substitutes into, and obtains pair between temperature value, speed and the voltage protection threshold value of the electrokinetic cell It should be related to；Receive the actual vehicle speed of the electrokinetic cell；According to the corresponding relation between the temperature value, speed and voltage protection threshold value, obtain and the actual temperature value and reality The corresponding dynamic electric voltage rotection thresholds of border speed.
- A kind of 9. device that dynamic electric voltage rotection thresholds are provided, it is characterised in that including：First corresponding relation obtaining unit, for carrying out demarcation test to electrokinetic cell, obtain the electrokinetic cell temperature value, Corresponding relation between current value and voltage protection threshold value；Including：Charge or discharge to electrokinetic cell carry out demarcation test, obtain Obtain the corresponding relation or temperature value, current value, discharge time and voltage between temperature value, current value, charging interval and magnitude of voltage Corresponding relation between value is minimum during electric discharge to allow electric discharge electric wherein maximum permissible voltage value be charge cutoff voltage during charging Pressure value is discharge cut-off voltage, and the charging interval corresponding with the charge cutoff voltage is the charge cutoff time, is put with described Electric blanking voltage corresponding discharge time is electric discharge deadline；The processing time reserved needed for reception；According to the temperature Between corresponding relation or temperature value, current value, discharge time and magnitude of voltage between value, current value, charging interval and magnitude of voltage Corresponding relation with reference to the required reserved processing time, obtain between temperature value, current value and charging voltage rotection thresholds Corresponding relation or temperature value, current value and discharge voltage rotection thresholds between corresponding relation, the charging voltage protects threshold Value is the magnitude of voltage corresponding with the first charging interval, and the discharge voltage rotection thresholds are corresponding with the first discharge time Magnitude of voltage, first charging interval are the difference of the charge cutoff time and the required reserved processing time；It is described First discharge time was the difference of the electric discharge deadline and the required reserved processing time；Actual temperature value and actual current value receiving unit, for receiving the actual temperature value and actual current of the electrokinetic cell Value；First dynamic electric voltage rotection thresholds obtaining unit, for according between the temperature value, current value and voltage protection threshold value Corresponding relation, obtain dynamic electric voltage rotection thresholds corresponding with the actual temperature value and actual current value.
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| CN111478388A (en) * | 2020-04-14 | 2020-07-31 | 歌尔科技有限公司 | Electronic product, battery discharge protection method, device and medium |
| CN113206531A (en) * | 2021-05-19 | 2021-08-03 | 宝能(广州)汽车研究院有限公司 | Voltage protection method and device for battery |
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| CN1428886A (en) * | 2001-05-01 | 2003-07-09 | 钟阳 | Charging method capable of protecting function and its device |
| CN102761141A (en) * | 2011-04-25 | 2012-10-31 | 中国科学院上海微***与信息技术研究所 | Electric quantity correction and control method of lithium ion power storage battery |
| CN103605078A (en) * | 2013-11-12 | 2014-02-26 | 清华大学 | Performance test method for power battery or battery packet of hybrid power vehicle |
| CN104477040A (en) * | 2014-11-18 | 2015-04-01 | 浙江工业大学之江学院 | Single-energy-source electro-mobile variable-current regenerative braking control method |
| CN204472587U (en) * | 2015-02-06 | 2015-07-15 | 西华大学 | The battery-driven car speed of a motor vehicle and battery monitor system |
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| DE112010005574B4 (en) * | 2010-05-19 | 2018-01-25 | Toyota Jidosha Kabushiki Kaisha | Vehicle control system |
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|---|---|---|---|---|
| CN1428886A (en) * | 2001-05-01 | 2003-07-09 | 钟阳 | Charging method capable of protecting function and its device |
| CN102761141A (en) * | 2011-04-25 | 2012-10-31 | 中国科学院上海微***与信息技术研究所 | Electric quantity correction and control method of lithium ion power storage battery |
| CN103605078A (en) * | 2013-11-12 | 2014-02-26 | 清华大学 | Performance test method for power battery or battery packet of hybrid power vehicle |
| CN104477040A (en) * | 2014-11-18 | 2015-04-01 | 浙江工业大学之江学院 | Single-energy-source electro-mobile variable-current regenerative braking control method |
| CN204472587U (en) * | 2015-02-06 | 2015-07-15 | 西华大学 | The battery-driven car speed of a motor vehicle and battery monitor system |
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