CN110441708A - A kind of battery testing system and method for battery modules - Google Patents
A kind of battery testing system and method for battery modules Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012360 testing method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 238000011156 evaluation Methods 0.000 claims description 125
- 230000005611 electricity Effects 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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Abstract
The invention discloses a kind of battery testing system of battery modules and methods, the battery testing system includes that battery modules specification obtains module, battery modules specification detection module, battery modules performance estimation module, the battery modules specification obtains the factory specification information that module is used to obtain battery modules, the battery modules specification detection module is used to detect the actual use specification information of battery modules, actual use specification information and dispatch from the factory specification information of the battery modules performance estimation module according to battery modules, the performance of battery modules is assessed, it includes that theoretical capacity obtains module and theoretical voltage acquisition module that the battery modules specification, which obtains module, the battery modules specification detection module includes battery modules capacity check module, battery modules voltage detection module and battery modules temperature detecting module, the theoretical appearance Amount obtains the theoretical capacity that module is used to obtain the battery modules.
Description
Technical field
The present invention relates to battery modules detection field, the battery testing system and method for specifically a kind of battery modules.
Background technique
Fast development of the heat with new energy industrial advantages, the economic increasing that new energy industry will be new as countries in the world cultivation
One important breakthrough mouth of long point.And new energy battery is an important development point of new energy industry.New energy battery is usual
For muti-piece battery core pack at battery modules.Since new energy battery remains in development, battery modules are still in development
In the middle, the performance of battery modules is unstable, in order to guarantee normal use, needs periodically to the performance of detection battery modules.But it is existing
There is the system and method for lacking in technology and effectively being detected to battery modules.
Summary of the invention
The purpose of the present invention is to provide a kind of battery testing system of battery modules and methods, to solve in the prior art
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of battery testing system of battery modules, the battery testing system include battery modules specification obtain module,
Battery modules specification detection module, battery modules performance estimation module, the battery modules specification obtain module for obtaining electricity
The factory specification information of Chi Mo group, the battery modules specification detection module are used to detect the actual use specification letter of battery modules
Breath, actual use specification information and dispatch from the factory specification information of the battery modules performance estimation module according to battery modules, to electricity
The performance of Chi Mo group is assessed.
Preferably, it includes that theoretical capacity acquisition module and theoretical voltage obtain that the battery modules specification, which obtains module,
Modulus block, the battery modules specification detection module include battery modules capacity check module, battery modules voltage detection module
With battery modules temperature detecting module, the theoretical capacity obtains the theoretical capacity that module is used to obtain the battery modules, and will
Theoretical capacity is transferred to battery modules capacity check module, and the theoretical voltage obtains the reason that module is used to obtain the battery modules
It is transferred to battery modules voltage detection module by voltage, and by theoretical voltage, the battery modules capacity check module is for examining
The actual capacity of battery modules is surveyed, and according to the theoretical capacity of battery modules and actual capacity output battery modules capacity evaluation
Value, the battery modules voltage detection module is used to detect the virtual voltage situation of battery modules, according to the theory of battery modules
Voltage and virtual voltage situation export battery modules voltage evaluation of estimate, and the battery modules temperature detecting module is for detecting battery
Temperature conditions of mould group during charging and discharging, and battery modules temperature evaluation of estimate is exported, the battery modules performance is commented
Module is estimated according to battery modules capacity evaluation of estimate, battery modules voltage evaluation of estimate and battery modules temperature evaluation of estimate, calculates battery
The comprehensive evaluation value of mould group, and according to the performance of the comprehensive evaluation value of battery modules evaluation battery modules.
Preferably, the battery modules capacity check module includes that mould pool-size measurement module and mould pool-size are commented
Valence module, the mould pool-size measurement module are used to measure the actual capacity of battery modules, the mould pool-size evaluation module root
Battery modules capacity evaluation of estimate, the battery modules electricity are calculated according to the theoretical capacity of battery modules and the actual capacity of battery modules
Pressure detection module includes battery modules grouping module, battery modules voltage detection module, battery core pack detection module, battery inspection
Module and voltage evaluation module are surveyed, the battery modules module is used to for the battery in battery modules to be divided into several groups electricity
The equal battery core pack of pond core number, the battery modules voltage detection module are used to measure the total voltage of battery modules, and root
First voltage evaluation of estimate is exported according to the total voltage and theoretical voltage of battery modules, the battery core pack detection module is for measuring
It is first defeated according to the sum of voltage of all battery core packs and the relationship of the total voltage of battery modules after the voltage of every group of battery core pack
Second voltage evaluation of estimate out exports tertiary voltage evaluation of estimate further according to the voltage condition of battery core pack, and the battery detects mould
Block is used to detect the voltage condition of monoblock battery core, and the voltage evaluation module is commented according to first voltage evaluation of estimate, second voltage
Value and tertiary voltage evaluation of estimate export battery modules voltage evaluation of estimate, and the battery modules temperature detecting module includes electric discharge inspection
Module, charging detecting model and temperature evaluation module are surveyed, the discharge examination module is measured for controlling battery modules electric discharge
Temperature in battery modules discharge process exports the first temperature evaluation of estimate, the charging detection according to the temperature in discharge process
Module measures the temperature in battery modules charging process for controlling battery modules charging, according to the temperature in charging process
Second temperature evaluation of estimate is exported, the temperature evaluation module exports battery according to the first temperature evaluation of estimate and second temperature evaluation of estimate
Module temperature evaluation of estimate.
A kind of battery detection method of battery modules, it is characterised in that: the battery detection method the following steps are included:
S1: the theoretical specification information of battery modules is obtained；
S2: the practical specification information of battery modules is detected；,
S3: the performance of battery modules is assessed.
Preferably, the theoretical specification information in the step S1 includes battery modules theoretical capacity C0, battery mould
Group theoretical voltage U0.
Preferably, in the step S2 detect battery modules practical specification information the following steps are included:
S21: the actual capacity situation of battery modules is detected；
S22: the voltage condition of battery modules is detected；
S23: the temperature conditions of battery modules is detected.
Preferably, in the step S21 detect battery modules actual capacity the following steps are included:
S211: the actual capacity Ci of battery modules is measured；
S212: calculating battery modules capacity evaluation of estimate X, calculates P=Ci/C0 if 0.8≤P≤1 and shows the battery
The battery capacity of mould group is all right, battery modules capacity evaluation of estimate X=0；If P < 0.8, show the battery of the battery modules
Capacity situation is poor, battery modules capacity evaluation of estimate X=1；If P > 1, shows that the cubic content measurement of battery modules is abnormal, go to step
S211。
Preferably, in the step S22 detect battery modules voltage condition the following steps are included:
S221: by all batteries in battery modules be divided into several groups battery core pack A1, A2, A3 ..., An (n be from
So number), the number of the battery of every group of battery core pack is identical；
S222: measure the total voltage U0 of battery modules and voltage U1, U2 of each battery core pack, U3 ..., Un；
S223: judge the sum of voltage of all battery core packs (U1+U2+U3+ ...+Un) and battery modules total voltage U0 it
Between relationship, if 0.9* (U1+U2+U3+ ...+Un)≤U0≤(U1+U2+U3+ ...+Un), judges the electricity of the battery modules
Crushing consumption is normal, and first voltage evaluation of estimate Y1=0 goes to step S224；If U0 < 0.9* (U1+U2+U3+ ...+Un), then judgement should
The voltage loss of battery modules is abnormal, and first voltage evaluation of estimate Y1=1 goes to step S224；If U0 > (U1+U2+U3+ ...+Un),
Then judge that voltage detecting malfunctions, goes to step S222；
S224: by the voltage threshold of voltage Ui (1≤i≤n, i are natural number) and battery core pack of each battery core pack
Ua compares, if the voltage Ui of all battery core packs makes 0.8Ua≤Ui≤1.2Ua, shows all battery core pack voltage
Normally, tertiary voltage evaluation of estimate Y3=0, goes to step S226；If it exists the voltage Ui of battery core pack make Ui>1.1Ua or Ui<
0.9Ua then shows that the electric voltage exception of the block battery core pack, tertiary voltage Evaluation threshold Y3=1 go to step 225；
S225: the voltage of each piece of battery in the block battery core pack, and the voltage and battery of comparative cell core are detected
The relationship of the voltage threshold Ub of core, the voltage of battery is greater than 1.2Ub if it exists or the voltage of battery is less than 0.8Ub, then
The battery is taken out from the battery modules, the battery more renewed；
S226: battery modules voltage evaluation of estimate Y, Y=0.6Y1+0.4Y2 are calculated.
Preferably, in the step S23 detect battery modules temperature conditions the following steps are included:
S231: controlling the battery modules and discharge, and measures the discharge temp in the battery modules discharge process, if electric discharge
The peak of temperature is T1, and T0 is compared with battery modules temperature threshold T0, if T1≤1.1T0, the evaluation of the first temperature
Value Z1=0, if T1 > 1.1T0, the first temperature evaluation of estimate Z1=1；
S232: controlling the battery modules and charge, and the charging temperature in the battery modules charging process is measured in side, if charging
The peak of temperature is T2, if T2≤1.1T0, the first temperature evaluation of estimate Z2=0, if T2 > 1.1T0, the first temperature is commented
It is worth Z2=1；
S233: battery modules temperature evaluation of estimate Z, Z=0.5Z1+0.5Z2 are calculated.
Preferably, in the step S3 assess battery modules performance the following steps are included:
S31: the comprehensive evaluation value Q=0.4X+0.3Y+0.3Z of battery modules is calculated；
S32: according to comprehensive evaluation value Q, the performance of battery modules is assessed, if Q≤0.33, shows the battery modules
The service life of excellent performance, the battery modules is still longer；If 0.33 < Q≤0.48, show the performance of the battery modules
Well, in order to extend the service life of the battery modules, maintenance should be carried out to the battery modules；If Q > 0.48, table
The performance of the bright battery modules is poor, it is not recommended that continues to use the battery modules.
Compared with prior art, the beneficial effects of the present invention are: the present invention pass through from battery modules capacity, battery modules electricity
Pressure is evaluated with the temperature in battery modules charge and discharge process to the performance of battery modules, is effectively commented battery modules
Estimate, and propose to advise to battery modules, ensure that battery modules efficiently use.
Detailed description of the invention
Fig. 1 is a kind of module diagram of the battery testing system of battery modules of the present invention；
Fig. 2 is a kind of flow diagram of the battery detection method of battery modules of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~2, in the embodiment of the present invention, a kind of battery testing system and method for battery modules, battery detecting
System includes that battery modules specification obtains module, battery modules specification detection module, battery modules performance estimation module, battery mould
Group specification obtains the factory specification information that module is used to obtain battery modules, and battery modules specification detection module is for detecting battery
The actual use specification information of mould group, battery modules performance estimation module is according to the actual use specification informations of battery modules and goes out
Factory's specification information assesses the performance of battery modules.
It includes that theoretical capacity obtains module and theoretical voltage acquisition module, battery modules rule that battery modules specification, which obtains module,
Lattice detection module includes battery modules capacity check module, battery modules voltage detection module and battery modules temperature detection mould
Block, theoretical capacity obtains the theoretical capacity that module is used to obtain the battery modules, and theoretical capacity is transferred to battery modules and is held
Detection module is measured, theoretical voltage obtains the theoretical voltage that module is used to obtain the battery modules, and theoretical voltage is transferred to electricity
Chi Mo group voltage detection module, battery modules capacity check module are used to detect the actual capacity of battery modules, and according to battery
The theoretical capacity and actual capacity of mould group export battery modules capacity evaluation of estimate, and battery modules voltage detection module is for detecting electricity
The virtual voltage situation of Chi Mo group, according to the theoretical voltage of battery modules and the output battery modules voltage evaluation of virtual voltage situation
Value, battery modules temperature detecting module export electricity for detecting temperature conditions of battery modules during charging and discharging
Pond module temperature evaluation of estimate, battery modules performance estimation module are evaluated according to battery modules capacity evaluation of estimate, battery modules voltage
Value and battery modules temperature evaluation of estimate, calculate the comprehensive evaluation value of battery modules, and comment according to the comprehensive evaluation value of battery modules
The performance of valence battery modules.
Battery modules capacity check module includes mould pool-size measurement module and mould pool-size evaluation module, and mould pool-size is surveyed
Amount module is used to measure the actual capacities of battery modules, and mould pool-size evaluation module is according to the theoretical capacity and battery of battery modules
The actual capacity of mould group calculates battery modules capacity evaluation of estimate, and battery modules voltage detection module includes battery modules grouping mould
Block, battery modules voltage detection module, battery core pack detection module, battery detection module and voltage evaluation module, battery mould
Group module is used to the battery in battery modules being divided into the equal battery core pack of several groups battery number, battery modules
Voltage detection module is used to measure the total voltage of battery modules, and according to the total voltage of battery modules and theoretical voltage output first
Voltage evaluation of estimate, battery core pack detection module are used for after the voltage for measuring every group of battery core pack, first according to all batteries
The sum of voltage of group and the relationship of the total voltage of battery modules export second voltage evaluation of estimate, further according to the voltage feelings of battery core pack
Condition exports tertiary voltage evaluation of estimate, and battery detection module is used to detect the voltage condition of monoblock battery core, voltage evaluation module
Battery modules voltage evaluation of estimate, battery are exported according to first voltage evaluation of estimate, second voltage evaluation of estimate and tertiary voltage evaluation of estimate
Module temperature detection module includes discharge examination module, charging detecting model and temperature evaluation module, and discharge examination module is used for
Battery modules electric discharge is controlled, and measures the temperature in battery modules discharge process, according to the temperature output first in discharge process
Temperature evaluation of estimate, charging detecting model measure the temperature in battery modules charging process, root for controlling battery modules charging
Second temperature evaluation of estimate is exported according to the temperature in charging process, temperature evaluation module is according to the first temperature evaluation of estimate and second temperature
Evaluation of estimate exports battery modules temperature evaluation of estimate.
A kind of battery detection method of battery modules, it is characterised in that: battery detection method the following steps are included:
S1: the theoretical specification information of battery modules is obtained；
S2: the practical specification information of battery modules is detected；,
S3: the performance of battery modules is assessed.
Theoretical specification information in step S1 includes battery modules theoretical capacity C0, battery modules theoretical voltage U0.
In step S2 detect battery modules practical specification information the following steps are included:
S21: the actual capacity situation of battery modules is detected；
S22: the voltage condition of battery modules is detected；
S23: the temperature conditions of battery modules is detected.
In step S21 detect battery modules actual capacity the following steps are included:
S211: the actual capacity Ci of battery modules is measured；
S212: calculating battery modules capacity evaluation of estimate X, calculates P=Ci/C0 if 0.8≤P≤1 and shows the battery
The battery capacity of mould group is all right, battery modules capacity evaluation of estimate X=0；If P < 0.8, show the battery of the battery modules
Capacity situation is poor, battery modules capacity evaluation of estimate X=1；If P > 1, shows that the cubic content measurement of battery modules is abnormal, go to step
S211。
In step S22 detect battery modules voltage condition the following steps are included:
S221: by all batteries in battery modules be divided into several groups battery core pack A1, A2, A3 ..., An (n be from
So number), the number of the battery of every group of battery core pack is identical；
S222: measure the total voltage U0 of battery modules and voltage U1, U2 of each battery core pack, U3 ..., Un；
S223: judge the sum of voltage of all battery core packs (U1+U2+U3+ ...+Un) and battery modules total voltage U0 it
Between relationship, if 0.9* (U1+U2+U3+ ...+Un)≤U0≤(U1+U2+U3+ ...+Un), judges the electricity of the battery modules
Crushing consumption is normal, and first voltage evaluation of estimate Y1=0 goes to step S224；If U0 < 0.9* (U1+U2+U3+ ...+Un), then judgement should
The voltage loss of battery modules is abnormal, and first voltage evaluation of estimate Y1=1 goes to step S224；If U0 > (U1+U2+U3+ ...+Un),
Then judge that voltage detecting malfunctions, goes to step S222；
S224: by the voltage threshold of voltage Ui (1≤i≤n, i are natural number) and battery core pack of each battery core pack
Ua compares, if the voltage Ui of all battery core packs makes 0.8Ua≤Ui≤1.2Ua, shows all battery core pack voltage
Normally, tertiary voltage evaluation of estimate Y3=0, goes to step S226；If it exists the voltage Ui of battery core pack make Ui>1.1Ua or Ui<
0.9Ua then shows that the electric voltage exception of the block battery core pack, tertiary voltage Evaluation threshold Y3=1 go to step 225；
S225: the voltage of each piece of battery in the block battery core pack, and the voltage and battery of comparative cell core are detected
The relationship of the voltage threshold Ub of core, the voltage of battery is greater than 1.2Ub if it exists or the voltage of battery is less than 0.8Ub, then
The battery is taken out from the battery modules, the battery more renewed；
S226: battery modules voltage evaluation of estimate Y, Y=0.6Y1+0.4Y2 are calculated.
In step S23 detect battery modules temperature conditions the following steps are included:
S231: controlling the battery modules and discharge, and measures the discharge temp in the battery modules discharge process, if electric discharge
The peak of temperature is T1, and T0 is compared with battery modules temperature threshold T0, if T1≤1.1T0, the evaluation of the first temperature
Value Z1=0, if T1 > 1.1T0, the first temperature evaluation of estimate Z1=1；
S232: controlling the battery modules and charge, and the charging temperature in the battery modules charging process is measured in side, if charging
The peak of temperature is T2, if T2≤1.1T0, the first temperature evaluation of estimate Z2=0, if T2 > 1.1T0, the first temperature is commented
It is worth Z2=1；
S233: battery modules temperature evaluation of estimate Z, Z=0.5Z1+0.5Z2 are calculated.
In step S3 assess battery modules performance the following steps are included:
S31: the comprehensive evaluation value Q=0.4X+0.3Y+0.3Z of battery modules is calculated；
S32: according to comprehensive evaluation value Q, the performance of battery modules is assessed, if Q≤0.33, shows the battery modules
The service life of excellent performance, the battery modules is still longer；If 0.33 < Q≤0.48, show the performance of the battery modules
Well, in order to extend the service life of the battery modules, maintenance should be carried out to the battery modules；If Q > 0.48, table
The performance of the bright battery modules is poor, it is not recommended that continues to use the battery modules.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of battery testing system of battery modules, it is characterised in that: the battery testing system includes battery modules specification
Module, battery modules specification detection module, battery modules performance estimation module are obtained, the battery modules specification obtains module and uses
In the factory specification information for obtaining battery modules, the battery modules specification detection module is for detecting actually making for battery modules
With specification information, the battery modules performance estimation module is believed according to the actual use specification information and factory specification of battery modules
Breath, assesses the performance of battery modules.
2. a kind of battery testing system of battery modules according to claim 1, it is characterised in that: the battery modules rule
It includes that theoretical capacity obtains module and theoretical voltage acquisition module that lattice, which obtain module, and the battery modules specification detection module includes
Battery modules capacity check module, battery modules voltage detection module and battery modules temperature detecting module, the theoretical capacity
The theoretical capacity that module is used to obtain the battery modules is obtained, and theoretical capacity is transferred to battery modules capacity check module,
The theoretical voltage obtains the theoretical voltage that module is used to obtain the battery modules, and theoretical voltage is transferred to battery modules electricity
Detection module is pressed, the battery modules capacity check module is used to detect the actual capacity of battery modules, and according to battery modules
Theoretical capacity and actual capacity export battery modules capacity evaluation of estimate, the battery modules voltage detection module is for detecting electricity
The virtual voltage situation of Chi Mo group, according to the theoretical voltage of battery modules and the output battery modules voltage evaluation of virtual voltage situation
Value, the battery modules temperature detecting module are used to detect temperature conditions of battery modules during charging and discharging, and defeated
Battery modules temperature evaluation of estimate out, the battery modules performance estimation module is according to battery modules capacity evaluation of estimate, battery modules
Voltage evaluation of estimate and battery modules temperature evaluation of estimate, calculate the comprehensive evaluation value of battery modules, and according to the synthesis of battery modules
The performance of evaluation of estimate evaluation battery modules.
3. a kind of battery testing system of battery modules according to claim 2, it is characterised in that: the battery modules are held
Amount detection module includes mould pool-size measurement module and mould pool-size evaluation module, and the mould pool-size measurement module is for measuring
The actual capacity of battery modules, the mould pool-size evaluation module is according to the theoretical capacity of battery modules and the reality of battery modules
Calculation of capacity battery modules capacity evaluation of estimate, the battery modules voltage detection module include battery modules grouping module, battery
Mould group voltage detection module, battery core pack detection module, battery detection module and voltage evaluation module, the battery modules mould
Group module is used to the battery in battery modules being divided into the equal battery core pack of several groups battery number, the battery modules
Voltage detection module is used to measure the total voltage of battery modules, and according to the total voltage of battery modules and theoretical voltage output first
Voltage evaluation of estimate, the battery core pack detection module are used for after the voltage for measuring every group of battery core pack, first according to all electricity
The sum of voltage of Chi Xin group and the relationship of the total voltage of battery modules export second voltage evaluation of estimate, further according to the electricity of battery core pack
Situation is pressed to export tertiary voltage evaluation of estimate, the battery detection module is used to detect the voltage condition of monoblock battery core, described
Voltage evaluation module exports battery modules voltage according to first voltage evaluation of estimate, second voltage evaluation of estimate and tertiary voltage evaluation of estimate
Evaluation of estimate, the battery modules temperature detecting module include discharge examination module, charging detecting model and temperature evaluation module, institute
Discharge examination module is stated for controlling battery modules electric discharge, and measures the temperature in battery modules discharge process, according to discharging
Temperature in journey exports the first temperature evaluation of estimate, and the charging detecting model measures battery for controlling battery modules charging
Temperature in mould group charging process exports second temperature evaluation of estimate, the temperature evaluation module according to the temperature in charging process
Battery modules temperature evaluation of estimate is exported according to the first temperature evaluation of estimate and second temperature evaluation of estimate.
4. a kind of battery detection method of battery modules, it is characterised in that: the battery detection method the following steps are included:
S1: the theoretical specification information of battery modules is obtained；
S2: the practical specification information of battery modules is detected；,
S3: the performance of battery modules is assessed.
5. a kind of battery detection method of battery modules according to claim 4, it is characterised in that: in the step S1
Theoretical specification information includes battery modules theoretical capacity C0, battery modules theoretical voltage Us.
6. a kind of battery detection method of battery modules according to claim 4, it is characterised in that: examined in the step S2
Survey battery modules practical specification information the following steps are included:
S21: the actual capacity situation of battery modules is detected；
S22: the voltage condition of battery modules is detected；
S23: the temperature conditions of battery modules is detected.
7. a kind of battery detection method of battery modules according to claim 6, it is characterised in that: in the step S21
Detect battery modules actual capacity the following steps are included:
S211: the actual capacity Ci of battery modules is measured；
S212: calculating battery modules capacity evaluation of estimate X, calculates P=Ci/C0 if 0.8≤P≤1 and shows the battery modules
Battery capacity it is all right, battery modules capacity evaluation of estimate X=0；If P < 0.8, show the battery capacity of the battery modules
Situation is poor, battery modules capacity evaluation of estimate X=1；If P > 1, shows that the cubic content measurement of battery modules is abnormal, go to step
S211。
8. a kind of battery detection method of battery modules according to claim 6, it is characterised in that: preferably,
In the step S22 detect battery modules voltage condition the following steps are included:
S221: by all batteries in battery modules be divided into several groups battery core pack A1, A2, A3 ..., (n is nature to An
Number), the number of the battery of every group of battery core pack is identical；
S222: measure the total voltage U0 of battery modules and voltage U1, U2 of each battery core pack, U3 ..., Un, and calculate K=
U0/US shows that the voltage condition of the battery modules is good, then first voltage evaluation of estimate Y1=0 if 0.8≤K≤1；If K <
0.8, then show that the battery capacity situation of the battery modules is poor, electric first voltage evaluation of estimate Y1=1；
S223: judge between the sum of voltage of all battery core packs (U1+U2+U3+ ...+Un) and the total voltage U0 of battery modules
Relationship judges the voltage damage of the battery modules if 0.9* (U1+U2+U3+ ...+Un)≤U0≤(U1+U2+U3+ ...+Un)
Consumption is normal, and second voltage evaluation of estimate Y2=0 goes to step S224；If U0 < 0.9* (U1+U2+U3+ ...+Un), then judge the battery
The voltage loss of mould group is abnormal, and second voltage evaluation of estimate Y2=1 goes to step S224；If U0 > (U1+U2+U3+ ...+Un), then sentence
Power-off pressure detection error, goes to step S222；
S224: by the voltage threshold Ua ratio of the voltage Ui (1≤i≤n, i are natural number) of each battery core pack and battery core pack
Compared with, if the voltage Ui of all battery core packs makes 0.8Ua≤Ui≤1.2Ua, show that all battery core pack voltage is normal,
Tertiary voltage evaluation of estimate Y3=0, goes to step S226；The voltage Ui of battery core pack makes Ui>1.1Ua or Ui<0.9Ua if it exists,
Then show that the electric voltage exception of the block battery core pack, tertiary voltage Evaluation threshold Y3=1 go to step 225；
S225: detecting the voltage of each piece of battery in the block battery core pack, and the voltage of comparative cell core and battery
The relationship of voltage threshold Ub, the voltage of battery is greater than 1.2Ub if it exists or the voltage of battery is less than 0.8Ub, then should
Battery is taken out from the battery modules, the battery more renewed；
S226: battery modules voltage evaluation of estimate Y, Y=0.4Y1+0.3Y2+0.3Y3 are calculated.
9. the battery testing system and method for a kind of battery modules according to claim 4, it is characterised in that: the step
In S23 detect battery modules temperature conditions the following steps are included:
S231: controlling the battery modules and discharge, and the discharge temp in the battery modules discharge process is measured, if discharge temp
Peak be T1, T0 is compared with battery modules temperature threshold T0, if T1≤1.1T0, the first temperature evaluation of estimate Z1
=0, if T1 > 1.1T0, the first temperature evaluation of estimate Z1=1；
S232: controlling the battery modules and charge, and the charging temperature in the battery modules charging process is measured in side, if charging temperature
Peak be T2, if T2≤1.1T0, the first temperature evaluation of estimate Z2=0, if T2 > 1.1T0, the first temperature evaluation of estimate
Z2=1；
S233: battery modules temperature evaluation of estimate Z, Z=0.5Z1+0.5Z2 are calculated.
10. the battery testing system and method for a kind of battery modules according to claim 4, it is characterised in that: the step
The performance of battery modules is assessed in rapid S3 the following steps are included:
S31: the comprehensive evaluation value Q=0.4X+0.3Y+0.3Z of battery modules is calculated；
S32: according to comprehensive evaluation value Q, assessing the performance of battery modules, if Q≤0.33, shows the performance of the battery modules
Outstanding, the service life of the battery modules is still longer；If 0.33 < Q≤0.48, show the functional of the battery modules,
In order to extend the service life of the battery modules, maintenance should be carried out to the battery modules；If Q > 0.48, show the electricity
The performance of Chi Mo group is poor, it is not recommended that continues to use the battery modules.
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