CN109917303A - Battery life evaluation method, vehicle, charging pile, server and the system of vehicle - Google Patents
Battery life evaluation method, vehicle, charging pile, server and the system of vehicle Download PDFInfo
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Abstract
This disclosure relates to battery life evaluation method, vehicle, charging pile, server and the system of a kind of vehicle.The described method includes: vehicle sends estimation request to the charging pile connecting with vehicle, estimation request includes the related data of the battery of vehicle and the vehicle model information of vehicle；Charging pile or server search corresponding algorithm according to vehicle model information, and estimate according to corresponding algorithm and related data the SOH of the battery of vehicle；Vehicle or charging pile export the SOH of battery.Through the above technical solutions, the estimation in power battery service life is completed in charging pile or server, in this way, not needing to store the algorithm for estimating battery life in vehicle, do not need to run algorithm in the car yet.Estimating algorithm is arranged in the other equipment except vehicle, and vehicle is only used for sending and receiving data.In this way, saving the memory source and data processing amount of vehicle, accelerate the data processing speed of vehicle, reliability is higher.
Description
Technical field
This disclosure relates to field of vehicle control, and in particular, to a kind of battery life evaluation method of vehicle, fills vehicle
Electric stake, server and system.
Background technique
In the service life (State Of Health, SOH) of battery, also it is accumulator capacity, health degree, performance state, i.e. battery
Percentage of the capacity with respect to rated capacity is completely currently filled, the new battery that dispatches from the factory is 100%, and scrapping completely is 0.
Currently, higher cost longer to the period of the power source power battery progress life experiment of new-energy automobile.For
The life requirements of lithium ion battery be usually 8 years 120000 kilometers.
In one method of power battery life estimation, based on life experiment.That is, it is real to carry out accelerated aging in laboratory
It tests, and life model is established with this experimental result.However in life experiment, one side life experiment is difficult to cover power comprehensively
The setting of the influence factor of battery life, another aspect factor level easily causes power battery to abuse, interfere, destroy it is dynamic
The aging track of power battery script, also, laboratory lifetimes operating condition has bigger difference with practical automobile-used operating condition.
In another method of power battery life estimation, based on big data.Size of this method to training sample
With choose dependence with higher, and calculate complicated, implement difficult.In the related art, the estimation in power battery service life
All complete in the car.
Summary of the invention
Purpose of this disclosure is to provide a kind of battery life evaluation method of convenient, reliable vehicle, vehicle, charging pile,
Server and system.
To achieve the goals above, the disclosure provides a kind of battery life evaluation method of vehicle, which comprises institute
It states vehicle and sends estimation request to the charging pile connecting with the vehicle, the estimation request includes the phase of the battery of the vehicle
Close the vehicle model information of data and the vehicle；The charging pile or server search corresponding algorithm according to the vehicle model information,
And the SOH of the battery of the vehicle is estimated according to the corresponding algorithm and the related data；The vehicle described fills
Electric stake exports the SOH of the battery.
Optionally, the estimation request further includes the identity information of the vehicle, and the charging pile or server are according to institute
It states vehicle model information and searches corresponding algorithm, and estimate the electricity of the vehicle according to the corresponding algorithm and the related data
The SOH in pond, comprising:
The charging pile or the server are in the case where confirming the identity information by verifying, according to the vehicle
The corresponding algorithm of information searching, and estimate according to the corresponding algorithm and the related data battery of the vehicle
SOH。
Optionally, before the vehicle sends estimation request to the charging pile connecting with the vehicle, the method is also wrapped
Include: the vehicle sends the identity information of the vehicle to the charging pile；The charging pile or the server are in confirmation institute
In the case where identity information is stated by verifying, Xiang Suoshu vehicle sends confirmation message.
The vehicle sends estimation request to the charging pile connecting with the vehicle, comprising: the vehicle is receiving
In the case where stating confirmation message, estimation request is sent to the charging pile connecting with the vehicle.
Optionally, the method also includes: the servers is sent to the SOH of the battery identity with the vehicle
The associated terminal of information, so that the terminal exports the SOH of the battery.
Optionally, the SOH of the battery of the vehicle is estimated according to the corresponding algorithm and the related data, is wrapped
It includes:
S1, cell voltage V is chosen from the constant current initial charge curve of the battery with the linear relevant voltage zone SOC
Between [Vr1, Vr2], V ∈ [Vr1, Vr2]；
S2, the charging section for being suitble to do SOH estimation in the battery use process is chosen according to voltage range [Vr1, Vr2]；
S3, calculate that SOH estimates the charging section be filled with electricity Qch；
S4, the charging section whole story voltage is estimated according to SOH, calculates the charged shape of charging section according to the charging curve established
State difference △ SOCv；
S5, estimation battery current capacities Qc；According to Qc=Qch/ △ SOCv, the battery is estimated using following formula
Service life:
SOH=Qc/QN=Qch/ (△ SOCv*QN).
The disclosure provides a kind of battery life evaluation method of vehicle, is applied to vehicle, the battery including above-mentioned vehicle
Step performed by vehicle in life estimation method.
The disclosure provides a kind of battery life evaluation method of vehicle, is applied to charging pile, the electricity including above-mentioned vehicle
Step performed by charging pile in the life estimation method of pond.
The disclosure provides a kind of battery life evaluation method of vehicle, is applied to server, the electricity including above-mentioned vehicle
Step performed by server in the life estimation method of pond.
The disclosure provides a kind of vehicle, and the vehicle is configured as executing in the battery life evaluation method of above-mentioned vehicle
Vehicle performed by step.
The disclosure provides a kind of charging pile, and the charging pile is configured as executing the battery life estimation side of above-mentioned vehicle
Step performed by charging pile in method.
The disclosure provides a kind of server, and the server is configured as executing the battery life estimation side of above-mentioned vehicle
Step performed by server in method.
The disclosure provides a kind of battery life estimating system of vehicle, which includes: vehicle, server and charging pile.
Wherein, the vehicle is used to send estimation request with the vehicle to the charging pile connecting, and the estimation request includes the vehicle
Battery related data and the vehicle vehicle model information；The charging pile or server are used for according to the vehicle model information
Corresponding algorithm is searched, and estimates the SOH of the battery of the vehicle according to the corresponding algorithm and the related data；Institute
Vehicle or the charging pile are stated for exporting the SOH of the battery.
Through the above technical solutions, the estimation in power battery service life is completed in charging pile or server, in this way, in vehicle
It does not need to store the algorithm for estimating battery life, does not need to run algorithm in the car yet.Estimating algorithm is arranged in vehicle
Except other equipment in, vehicle is only used for sending and receiving data.In this way, saving the memory source and data processing amount of vehicle, make
The data processing speed of vehicle is accelerated, and reliability is higher.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the scene schematic diagram of the battery life evaluation method for the vehicle that an exemplary embodiment provides；
Fig. 2 is the flow chart of the battery life evaluation method for the vehicle that an exemplary embodiment provides；
Fig. 3 is the signaling diagram of the battery life evaluation method for the vehicle that an exemplary embodiment provides；
Fig. 4 is the signaling diagram of the battery life evaluation method for the vehicle that another exemplary embodiment provides；
Fig. 5 is the signaling diagram of the battery life evaluation method for the vehicle that another exemplary embodiment provides；
Fig. 6 is the battery life initial charge curve that an exemplary embodiment provides；
Fig. 7 is correspond to SOH on different moment in the service life charging curve of battery that an exemplary embodiment provides to estimate charging section；
Fig. 8 is the flow chart of the life estimation method for the battery that an exemplary embodiment provides；
Fig. 9 is the flow chart of the life estimation method for the battery that another exemplary embodiment provides；
Figure 10 is the flow chart of the life estimation method for the battery that another exemplary embodiment provides；
Figure 11 is the block diagram of a kind of electronic equipment shown according to an exemplary embodiment；
Figure 12 is the block diagram of a kind of electronic equipment shown according to an exemplary embodiment.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
Fig. 1 is the scene schematic diagram of the battery life evaluation method for the vehicle that an exemplary embodiment provides.It is shown in Fig. 1
Embodiment in, vehicle 10 and charging pile 20 are electrically connected.Between vehicle 10 and charging pile 20 can by common wired or
Wirelessly communicated.Server 30 can be car networking server.Server 30 can be communicated with charging pile 20.
For example, being communicated by modes such as 4G, 5G, local area networks.It is stored in server 30 between the identity information of vehicle 10 and terminal 40
Incidence relation, server 30 can communicate with terminal 40 wirelessly.
Fig. 2 is the flow chart of the battery life evaluation method for the vehicle that an exemplary embodiment provides.As shown in Fig. 2, institute
The method of stating may comprise steps of.
In step s 11, vehicle sends estimation request to the charging pile connecting with vehicle, and estimation request includes the electricity of vehicle
The related data in pond and the vehicle model information of vehicle.
In step s 12, charging pile or server search corresponding algorithm according to vehicle model information, and according to corresponding algorithm
The SOH of the battery of vehicle is estimated with related data.
In step s 13, vehicle or charging pile export the SOH of battery.
Wherein, before charging pile is Vehicular charging, any time in charging process or after charging complete, vehicle
Estimation request can be sent to charging pile.The related data of battery including estimates battery to for estimating that the algorithm of SOH is related
SOH needed for data.For example, may include the data such as battery temperature, state-of-charge, monomer battery voltage.The correlation of battery
Data can be the data that vehicle is got in real time.Vehicle model information includes the data such as the brand of vehicle, model.Due to different vehicles
The configuration mode of its power battery of type is different, for estimating that the algorithm of SOH of battery is also different.It therefore, can by vehicle model information
To determine the algorithm for estimating SOH.
In a kind of situation, algorithm corresponding with different automobile types information is previously stored in charging pile.Charging pile is receiving
When the estimation request that vehicle is sent, corresponding algorithm is searched according to vehicle model information, and according to corresponding algorithm and related data come
Estimate the SOH of the battery of vehicle.Later, the SOH of battery can be exported in charging pile, the SOH estimated can also be sent to
Vehicle exports in the car.For example, being exported in vehicle-carrying display screen or instrument board.
In another situation, charging pile can also will estimation request be transmitted to server, be previously stored in server with
The corresponding algorithm of different automobile types information.Server is searched in the estimation request for receiving charging pile forwarding according to vehicle model information
Corresponding algorithm, and estimate according to corresponding algorithm and related data the SOH of the battery of vehicle.Later, server can incite somebody to action
The SOH of battery is sent to charging pile, is exported in charging pile, and the SOH estimated can also be sent to vehicle by charging pile,
It exports in the car.
Through the above technical solutions, the estimation in power battery service life is completed in charging pile or server, in this way, in vehicle
It does not need to store the algorithm for estimating battery life, does not need to run algorithm in the car yet.Estimating algorithm is arranged in vehicle
Except other equipment in, vehicle is only used for sending and receiving data.In this way, saving the memory source and data processing amount of vehicle, make
The data processing speed of vehicle is accelerated, and reliability is higher.
In the above embodiments, can be any vehicle can function.In other embodiments, it can also be pair
In the function of a part of vehicle application.In another embodiment, on the basis of Fig. 2, estimation request further includes the identity of vehicle
Information, charging pile or server search corresponding algorithm according to vehicle model information, and are estimated according to corresponding algorithm and related data
Calculate the SOH of the battery of vehicle, comprising:
Charging pile or server search corresponding calculation according to vehicle model information in the case where confirming identity information by verifying
Method, and estimate according to corresponding algorithm and related data the SOH of the battery of vehicle.
Identity information is used to indicate the information that vehicle is different from other vehicles, for example, identity information may include license plate number,
Owner name, car owner's cell-phone number, car number etc..The identity information of vehicle is verified, may include: in scheduled data
The identity information of vehicle is searched in library, if it is possible to find, then it is assumed that be verified, if do not found, then it is assumed that test
Card does not pass through.Car owner can in advance register the identity information of vehicle, make the identity information that vehicle is stored in database.
Can some conditions of data lab setting be stored in the identity information of vehicle in advance.For example, it is desired to pay.In this way, only paying
User can just enjoy the function.
In oneainstance, scheduled database is stored in charging pile.By charging pile come the identity information to vehicle into
Row verifying, and in the case where being verified, corresponding algorithm is searched according to vehicle model information, and according to corresponding algorithm and correlation
Data estimate the SOH of the battery of vehicle.In the embodiment, charging pile estimates the SOH of the battery of vehicle, the speed of estimation compared with
Fastly.
In another scenario, scheduled database is stored in charging pile.By charging pile come the identity information to vehicle
Verified, and in the case where being verified, vehicle model information and related data issued into server, by server according to
Vehicle model information searches corresponding algorithm, and estimates according to corresponding algorithm and related data the SOH of the battery of vehicle.The implementation
In example, charging pile verifies vehicle identification, and server estimates the SOH of the battery of vehicle, saves the memory of charging pile, accelerate and fill
The data processing speed of electric stake.
Scheduled database is stored in another situation, in server.Charging pile sends the identity information of vehicle
To server, the identity information of vehicle is verified by server, and in the case where being verified, according to vehicle model information
Corresponding algorithm is searched, and estimates according to corresponding algorithm and related data the SOH of the battery of vehicle.In the embodiment, clothes
Business device verifies vehicle identification, and estimates the SOH of the battery of vehicle, further saves the memory of charging pile, charging pile is only used for
The forwarding of data.
In the above-described embodiment, vehicle disposably sends the identity information of vehicle, vehicle model information and related data
To charging pile.In other embodiments, the identity information that can also first send vehicle receives identity information by testing in vehicle
The confirmation message and then transmission vehicle model information and related data of card.In this way, when vehicle does not receive confirmation message, just not
It needs to retransmit related data and vehicle model information.On the basis of Fig. 2, vehicle sends estimation to the charging pile connecting with vehicle
Before requesting (step S11), method can also include:
Vehicle sends the identity information of vehicle to charging pile；Charging pile or server pass through verifying in confirmation identity information
In the case of, confirmation message is sent to vehicle.
Wherein, it may include: that vehicle is receiving that vehicle, which sends estimation request (step S11) to the charging pile connecting with vehicle,
In the case where confirmation message, estimation request is sent to the charging pile connecting with vehicle.
In oneainstance, authentication is carried out by charging pile, charging pile passes through the feelings of verifying in confirmation identity information
Under condition, confirmation message is sent to vehicle.In the embodiment, the identity information of vehicle does not need charging pile forwarding, verifying identity letter
The fast speed of breath.
In another scenario, the identity information of vehicle is sent to server by charging pile, carries out identity by server
Verifying, server send confirmation message to vehicle in the case where confirming identity information by verifying, via charging pile.The implementation
In example, the identity information of vehicle saves the memory of charging pile by server authentication, accelerates the data processing speed of charging pile
Degree.
Identity information is sent to charging pile in vehicle, and the case where the identity information of vehicle is transmitted to server by charging pile
Under, when server estimates the SOH of battery, terminal associated with vehicle can also be sent to and exported.The embodiment
In, the method can also include:
The SOH of battery is sent to terminal associated with the identity information of vehicle by server, so that terminal is by battery
SOH is exported.
It can store the database of the incidence relation between the identity information of vehicle and terminal in server.Server can
To find the terminal being associated according to the identity information of vehicle, the SOH of battery is sent to the terminal.For example, when vehicle exists
When charging on charging pile, charging pile can forward the related data and vehicle model information of battery to server.Server estimates electricity
Just estimation result is sent on the mobile phone of car owner after the SOH in pond.Short message can be sent via common carrier, it can also be with
Message is sent in terminal APP.
In this way, car owner is by advance in the server binding the vehicle of oneself and terminal, it will be able to receive in the terminal
To the SOH of oneself vehicle, check at any time, it is more convenient.
Fig. 3 is the signaling diagram of the battery life evaluation method for the vehicle that an exemplary embodiment provides.The embodiment of the Fig. 3
In, corresponding algorithm is directly searched according to vehicle model information by charging pile, and the SOH of battery is estimated according to battery related data,
SOH is exported by vehicle.
Fig. 4 is the signaling diagram of the battery life evaluation method for the vehicle that another exemplary embodiment provides.The implementation of the Fig. 4
In example, the identity of vehicle is verified according to the identity information of vehicle by charging pile, after being verified, confirmation is sent to vehicle and disappears
Breath, vehicle are sent to server according to battery related data and vehicle in the case where receiving confirmation message, through charging pile
Information searches corresponding algorithm according to vehicle model information by server, and estimates the SOH of battery according to battery related data, SOH by
Vehicle output.
Fig. 5 is the signaling diagram of the battery life evaluation method for the vehicle that another exemplary embodiment provides.On the basis of Fig. 4
On, server sends SOH to terminal associated with vehicle, and SOH is exported jointly by both vehicle and terminal.
In one embodiment, the battery of the vehicle is estimated according to the corresponding algorithm and the related data
SOH may include step S1, S2, S3, S4 and S5.
S1, cell voltage V is chosen from the constant current initial charge curve of battery, and with SOC, (state of charge- is charged
State) linear relevant voltage range [Vr1, Vr2], V ∈ [Vr1, Vr2], choose section using voltage as qualifications without
Be using SOC as the reason of qualifications be in order to avoid in vehicle longtime running SOC estimation have accumulated error.Fig. 6 is an example
Property embodiment provide battery life initial charge curve.
S2, according to voltage range [Vr1, Vr2] choose battery use process in be suitble to be SOH (state of health-
Health status, service life) estimation charging section.Fig. 7 is different moment in the service life charging curves of battery that an exemplary embodiment provides
Upper corresponding SOH estimates charging section.As shown in fig. 7, being suitble to the charging section of estimation SOH that there is following require: (1), according to charging electricity
Pressure judgement is located in standard curve linearity range；(2), the charge capacity of battery is not less than a certain setting value, such as: the charging of battery
Electricity is not less than the 1 15 of initial capacity, which is the estimated accuracy in order to ensure battery capacity；(3), charging section
Interior charging current is steady state value, and size of current is consistent with standard curve electric current.
S3, calculate SOH estimation charging section be filled with electricity Qch, what Qch indicated battery is filled with electricity, and Qch calculation has
Two kinds: the first is ampere-hour integration method,T refers to the time, and I refers to that electric current, ts, te are the charging whole story respectively
Moment；The first is the SOC exported according to system, is calculated by SOC difference △ SOC.Qch=QN* △ SOC, QN indicate battery
Service life initial capacity, △ SOC are exactly the SOC of the charging section whole story poor, and △ SOC=SOC end-SOC begins.
S4, charging section whole story voltage is estimated according to SOH, it is poor to calculate charging section state-of-charge according to the charging curve established
Different △ SOCv, △ SOCv=SOCm-SOCs, SOCm=(a*Vm+b), SOCs=(a*Vs+b)=a* (Vm-Vs), △ SOCv table
Showing charging section charge state difference, SOCm, SOCs are that charging section corresponds to charging end, initial SOC on standard curve respectively, Vm,
Vs is that charging section corresponds to charging end, initial voltage on standard curve respectively.
S5, estimation battery current capacities Qc.According to Qch=QN* △ SOC, battery life is estimated using following formula:
SOH=Qc/QN=Qch/ (△ SOCv*QN).
Wherein, cost is relatively low, method is convenient, easy to implement for the application life estimation method, also, by step S1,
S2, S3, S4 and S5 cooperation, can quickly estimate the service life of battery, it can be determined that go out battery state, so as to for
Use, maintenance and the replacement of battery provide reference frame.
In addition, since the life estimation method is linearly related based on lithium ion battery constant-current charge process voltage and SOC
Section, therefore be not suitable for LiFePO4 system lithium ion battery (the system constant-current charging of battery voltage has obvious platform electricity
Pressure), but it is suitable for the lithium-ion battery system containing solid solution, such as ternary system: nickel cobalt manganese, nickel cobalt aluminium etc..
Fig. 8 is the flow chart of the life estimation method for the battery that an exemplary embodiment provides.As a result, by step S1,
S2, S3, S4 and S5 cooperation, can quickly estimate the service life of battery, it can be determined that go out battery state, so as to for
Use, maintenance and the replacement of battery provide reference frame, also, cost is relatively low, easy to implement for the life estimation method.
In some embodiments of the present disclosure, step S1 can also include that initial charge curve is under battery trickle charge operating condition
Initial charge curve, such as: electric current be less than 0.5C, in this way be arranged electric current can be made smaller, can alleviate to a certain extent
The influence to polarize to voltage, so as to promote the life estimate precision of battery life cycle management.
In some embodiments of the present disclosure, step S1 further includes that in voltage range [Vr1, Vr2], SOC meets relationship
Formula: SOC=a*V+b, wherein a, b are fitting parameter, and the value that can calculate SOC is arranged such, thereby may be ensured that and smoothly complete
Life estimate work to battery.
Fig. 9 is the flow chart of the life estimation method for the battery that another exemplary embodiment provides.As shown in figure 9, according to
One specific embodiment of the disclosure, the embodiment are the life approach of estimation on line battery, and step S1 can also include, to
When battery charges, battery charging start time voltage V1, remaining capacity SOC 1, electric current I1 are recorded.It is to be understood that judgement electricity
Pond charging starts, and judgment basis can be charged state, plug in rifle signal, charging voltage, any one in charging current.Specifically
It can be adjusted accordingly according to actual needs using when certain signal.For example, charged state becomes non-zero from 0, it can be concluded that and fill
It establishes by cable the beginning, charging voltage becomes non-zero from 0, equally also can be concluded that charging starts.After concluding that battery charging starts, battery is recorded
Charging start time voltage V1, remaining capacity SOC 1, electric current I1.
In some embodiments of the present disclosure, as shown in figure 9, step S1 can also include, when choosing voltage range, sentence
Disconnected charging initial position: if V1 < Vr1, record battery is charged to the voltage Vr1 that voltage is equal to the Vr1 moment, remaining capacity SOC 2,
Electric current I2, then SOH estimates that section initial value is the time data, i.e. Vs=Vr1, SOCs=SOC2, Is=I2, if if V1 >
Vr2, then the secondary charging does not meet SOH estimation, terminates, if Vr1≤V1 < Vr2, when SOH estimates that section initial value is that charging starts
Data, i.e. Vs=V1, SOCs=SOC1, Is=I1 are carved, setting in this way may determine that whether the charging initial point of battery is being marked
In voltage range [Vr1, Vr2] on directrix curve.
In some embodiments of the present disclosure, as shown in figure 9, step S2 can also include: when battery charging termination or
When charging voltage reaches SOH estimation charging section upper limit Vr2, recording voltage V2, remaining capacity SOC 3, electric current I3, and the point data
For charging section end data Ve=V2, SOCe=SOC3, the Ie=I3 estimated for SOH, such setting may determine that battery
Charging end.
In some embodiments of the present disclosure, as shown in figure 9, step S2 can also include: setting continuous current difference threshold
Value, which is Ir, is filled with electricity causes SOC variation lowest threshold to be SOCr, if | Is-Ie |<Ir, SOCe-SOCs>=SOCr, basis
The charging section coincidence measurement requirement that voltage selects, executes step S4.If | Is-Ie |>=Ir and/or SOCe-SOCs<SOCr,
Measurement request is not met according to the charging section that voltage selects, is terminated, it should be noted that | Is-Ie | >=Ir and/or SOCe-
SOCs<SOCr can refer to while meet relational expression: | Is-Ie |>=Ir, SOCe-SOCs<SOCr can also refer to satisfaction | Is-Ie |
A relational expression in>=Ir, SOCe-SOCs<SOCr.Setting may determine that whether battery is constant-current charge in this way, can also be with
Judge whether battery is filled with enough electricity.
Wherein, judge the charging section selected according to voltage whether and meanwhile meet the following conditions: a) battery is constant-current charge,
I.e. the absolute value of charging section whole story current differential is less than setting value Ir, | Is-Ie | < Ir.B) charge capacity whole story electricity difference is not
Less than a certain setting value SOCr, SOCe-SOCs >=SOC, satisfactory charging section can be selected through the above steps.
Also, charging section is filled with electricity Qch=(SOCe-SOCs) * QN, after voltage, electric current, electricity judgement are qualified,
The charging section charge state difference △ SOCv, △ SOCv=SOCve-SOCvs=are calculated according to the standard charge curve established
(a*Ve+b)-(a*Vs+b)=a* (Ve-Vs) then estimates battery current capacities Qc=Qch/ △ SOCv, then SOH=Qc/QN
=(SOCe-SOCs)/△ SOCv so as to accurately estimate the service life of battery, and then can be the use of battery, dimension
Shield and replacement provide reference frame.
Figure 10 is the flow chart of the life estimation method for the battery that another exemplary embodiment provides.As shown in Figure 10, root
According to another specific embodiment of the disclosure, which is the life approach of off-line analysis battery, such as is obtained offline vehicle-mounted
Lithium ion battery data carry out SOH estimation.Specific method be in step sl can also include: to obtain vehicle off-line data
Then electric current, voltage, charged state, battery dump energy judge the charging process of battery, if the charged state of battery becomes from 0
It is non-zero, then it represents that battery charging starts, if the charged state of battery becomes 0 from non-zero, then it represents that battery charging terminates.
It in step sl can also include: that record charging starts to count as shown in Figure 10 in some embodiments of the present disclosure
Terminate Data Position SOCicon2 according to position SOCicon1, charging, charging is read according to location information SOCicon1, SOCicon2
Start data V3, charging terminates data V4.It is to be understood that obtaining vehicle off-line data electric current, voltage, charged state, electricity
Pond remaining capacity, after the charging process for then judging battery, record charging starts data SOCicon1, charging terminates data
SOCicon2, charging start data V3, charging terminates data V4.
It in step s 2 can also include: to obtain vehicle to count offline as shown in Figure 10 in some embodiments of the present disclosure
According to electric current, voltage, charged state, battery dump energy, the charging process of battery is then judged, then record charging starts data
Position SOCicon1, charging terminate Data Position SOCicon2, charging starts data V3, charging terminates data V4, then basis
[V3, V4] chooses the charging section [V5, V6] belonged in the section [Vr1, Vr2], records Data Position corresponding with V5
SOCicon11, Data Position SOCicon22 corresponding with V6, in this way setting can select suitable charging section.
It in step s 2 can also include: to obtain vehicle to count offline as shown in Figure 10 in some embodiments of the present disclosure
According to electric current, voltage, charged state, battery dump energy, the charging process of battery is then judged, then record charging starts data
Position SOCicon1, charging terminate Data Position SOCicon2, charging starts data V3, charging terminates data V4, then basis
[V3, V4] chooses the charging section [V5, V6] belonged in the section [Vr1, Vr2], records Data Position corresponding with V5
SOCicon11, Data Position SOCicon22 corresponding with V6, in this way setting can select suitable charging section, and then basis is filled
The whole story position SOCicon11, SOCicon22 of electric section find out electric current I11 and SOC11 corresponding with SOCicon11, with
The corresponding electric current I22 and SOC22 of SOCicon22, set continuous current difference threshold as Ir, be filled with electricity cause SOC variation most
Low threshold is SOCr, is filtered out | I11-I22 | < Ir and △ SOC1=| and SOC22-SOC11 | the charging section of >=SOCr, and record
Corresponding data whole story position [SOCicon111, SOCicon222], such setting can be satisfactory with further screening
Charging section, so as to promote the accuracy of battery life estimation.
It can also include: according to the charging filtered out in step S3 as shown in Figure 10 in some embodiments of the present disclosure
The data whole story position [SOCicon111, SOCicon222] of section obtains charging section whole story voltage [V111, V222], passes through standard
The V-SOC curve that charges obtains corresponding remaining capacity VSOC1 and VSOC2, then the remaining capacity variation obtained from standard curve:
△ SOC2=| VSOC1-VSOC2 |.
It is to be understood that obtaining vehicle off-line data electric current, voltage, charged state, battery dump energy, then judge
The charging process of battery, then record charging starts Data Position SOCicon1, charging terminates Data Position SOCicon2, according to
Location information SOCicon1, SOCicon2 read charging and start data V3, charging end data V4, are then selected according to [V3, V4]
It takes the charging section [V5, V6] belonged in the section [Vr1, Vr2], records Data Position SOCicon11 corresponding with V5, corresponding with V6
Data Position SOCicon22, in this way setting can select suitable charging section, then according to the whole story position of charging section
SOCicon11, SOCicon22 are found out and the corresponding electric current I11 and SOC11 of SOCicon11, electric current corresponding with SOCicon22
I22 and SOC22, set continuous current difference threshold as Ir, be filled with electricity cause SOC change lowest threshold be SOCr, filter out |
I11-I22 | < Ir and △ SOC1=| SOC22-SOC11 | the charging section of >=SOCr, and record corresponding data whole story position
[SOCicon111,SOCicon222].According to the data whole story position of the charging section filtered out [SOCicon111,
SOCicon222] charging section whole story voltage [V111, V222] is obtained, corresponding residue is obtained by standard charging V-SOC curve
Electricity VSOC1 and VSOC2, then the remaining electric quantity change △ SOC2=obtained from standard curve | VSOC1-VSOC2 |, it is arranged in this way
The value of available remaining capacity variation △ SOC2.
Be filled with electricity Qch=QN* △ SOC1, or according to the data whole story position of charging section [SOCicon111,
SOCicon222], it intercepts out corresponding charge data I-t ampere-hour integral calculation and is filled with electricity Qch.
In some embodiments of the present disclosure, as shown in Figure 10, Qc=Qch/ △ SOC2, finally, according to formula: SOH=
△ SOC1/ △ SOC2, calculates the service life of battery, cooperates through the above steps, can more rapidly estimate making for battery
With the service life, also, cost is relatively low, easy to implement for the life estimation method, can further decrease experimental cost.
The disclosure provides a kind of battery life evaluation method of vehicle, is applied to vehicle in vehicle, including above-described embodiment
Battery life evaluation method in vehicle performed by step.
In one embodiment, this method comprises: sending estimation request to the charging pile connecting with vehicle, estimation request includes
The related data of the battery of vehicle and the vehicle model information of vehicle；The SOH of battery is exported.Wherein, charging pile or server
Corresponding algorithm is searched according to vehicle model information, and estimates according to corresponding algorithm and related data the SOH of the battery of vehicle.
In another embodiment, estimation request further includes the identity information of vehicle, charging pile or server in confirmation identity
In the case that information is by verifying, corresponding algorithm is searched according to vehicle model information, and according to corresponding algorithm and related data come
Estimate the SOH of the battery of vehicle.
In another embodiment, before sending estimation request to the charging pile connecting with vehicle, method further include:
The identity information of vehicle is sent to charging pile.Wherein, charging pile or server pass through verifying in confirmation identity information
In the case where, confirmation message is sent to vehicle.
Estimation request is sent to the charging pile connecting with vehicle, comprising: in the case where receiving confirmation message, Xiang Yuche
Connection charging pile send estimation request.
In another embodiment, the SOH of battery is sent to terminal associated with the identity information of vehicle by server, with
Export terminal by the SOH of battery.
In another embodiment, the SOH of the battery of vehicle is estimated according to corresponding algorithm and related data, comprising:
S1, cell voltage V is chosen from the constant current initial charge curve of battery with the linear relevant voltage range of SOC
[Vr1,Vr2],V∈[Vr1,Vr2]；
S2, the charging section for being suitble to do SOH estimation in battery use process is chosen according to voltage range [Vr1, Vr2]；
S3, it calculates SOH estimation charging section and is filled with electricity Qch；
S4, charging section whole story voltage is estimated according to SOH, it is poor to calculate charging section state-of-charge according to the charging curve established
Different △ SOCv；
S5, estimation battery current capacities Qc；According to Qc=Qch/ △ SOCv, the longevity of battery is estimated using following formula
Life:
SOH=Qc/QN=Qch/ (△ SOCv*QN).
The disclosure provides a kind of battery life evaluation method of vehicle, is applied to vehicle in charging pile, including above-described embodiment
Battery life evaluation method in charging pile performed by step.
In one embodiment, this method comprises: receiving the estimation request that the vehicle connecting with charging pile is sent, estimation request
The related data of battery including vehicle and the vehicle model information of vehicle；Corresponding algorithm is searched according to vehicle model information, and according to right
The algorithm answered and related data estimate the SOH of the battery of vehicle；Charging pile exports the SOH of battery.
In another embodiment, this method comprises: receiving the estimation request that the vehicle connecting with charging pile is sent, estimation is asked
Ask the related data of the battery including vehicle and the vehicle model information of vehicle；Estimation request is sent to server, so that server
Corresponding algorithm is searched according to vehicle model information, and estimates according to corresponding algorithm and related data the SOH of the battery of vehicle；It connects
The SOH for the battery that server is sent is received, and the SOH of battery is exported.
In another embodiment, estimation request further includes the identity information of vehicle, searches corresponding calculation according to vehicle model information
Method, and estimate according to corresponding algorithm and related data the SOH of the battery of vehicle, comprising:
In the case where confirming identity information by verifying, corresponding algorithm is searched according to vehicle model information, and according to correspondence
Algorithm and related data estimate the SOH of the battery of vehicle.
In another embodiment, estimation request further includes the identity information of vehicle, searches corresponding calculation according to vehicle model information
Method, and estimate according to corresponding algorithm and related data the SOH of the battery of vehicle, comprising:
Will estimation request be sent to server so that server confirm identity information by verifying in the case where, according to
Vehicle model information searches corresponding algorithm, and estimates according to corresponding algorithm and related data the SOH of the battery of vehicle.
In another embodiment, before receiving the estimation request that the vehicle connecting with charging pile is sent, method further include: connect
Return the vehicle to the garage and knock off an identity information for the vehicle sent；In the case where confirming identity information by verifying, confirmation message is sent to vehicle.
Receive the estimation request that the vehicle connecting with charging pile is sent, comprising: receive the vehicle connecting with charging pile and connecing
The estimation request sent in the case where receiving confirmation message.
In another embodiment, before receiving the estimation request that the vehicle connecting with charging pile is sent, method further include: connect
Return the vehicle to the garage and knock off the vehicle sent identity information and be transmitted to server, and server is passed through into the feelings of verifying in confirmation identity information
The confirmation message sent under condition is transmitted to vehicle.
Receive the estimation request that the vehicle connecting with charging pile is sent, comprising: receive the vehicle connecting with charging pile and connecing
The estimation request sent in the case where receiving confirmation message.
In another embodiment, the SOH of battery is sent to terminal associated with the identity information of vehicle by server, with
Export terminal by the SOH of battery.
In another embodiment, the SOH of the battery of vehicle is estimated according to corresponding algorithm and related data, comprising:
S1, cell voltage V is chosen from the constant current initial charge curve of battery with the linear relevant voltage range of SOC
[Vr1,Vr2],V∈[Vr1,Vr2]；
S2, the charging section for being suitble to do SOH estimation in battery use process is chosen according to voltage range [Vr1, Vr2]；
S3, it calculates SOH estimation charging section and is filled with electricity Qch；
S4, charging section whole story voltage is estimated according to SOH, it is poor to calculate charging section state-of-charge according to the charging curve established
Different △ SOCv；
S5, estimation battery current capacities Qc；According to Qc=Qch/ △ SOCv, the longevity of battery is estimated using following formula
Life:
SOH=Qc/QN=Qch/ (△ SOCv*QN).
The disclosure provides a kind of battery life evaluation method of vehicle, is applied to vehicle in server, including above-described embodiment
Battery life evaluation method in server performed by step.
In one embodiment, this method comprises: receiving the estimation request of charging pile forwarding；It is searched and is corresponded to according to vehicle model information
Algorithm, and estimate according to corresponding algorithm and related data the SOH of the battery of vehicle；The SOH of battery is sent to charging
Stake, so that vehicle or charging pile export the SOH of battery.Wherein, vehicle sends estimation to the charging pile connecting with vehicle
Request, estimation request include the related data of the battery of vehicle and the vehicle model information of vehicle.
In another embodiment, estimation request further includes the identity information of vehicle, searches corresponding calculation according to vehicle model information
Method, and estimate according to corresponding algorithm and related data the SOH of the battery of vehicle, comprising:
In the case where confirming identity information by verifying, corresponding algorithm is searched according to vehicle model information, and according to correspondence
Algorithm and related data estimate the SOH of the battery of vehicle.
In another embodiment, before vehicle sends estimation request to the charging pile connecting with vehicle, method further include: connect
Receive the identity information of the vehicle of charging pile forwarding；In the case where confirming identity information by verifying, via charging pile to vehicle
Send confirmation message.Wherein, vehicle sends estimation to the charging pile connecting with vehicle and asks in the case where receiving confirmation message
It asks.
In another embodiment, the method also includes: the SOH of battery is sent to associated with the identity information of vehicle
Terminal so that terminal exports the SOH of battery.
In another embodiment, the SOH of the battery of vehicle is estimated according to corresponding algorithm and related data, comprising:
S1, cell voltage V is chosen from the constant current initial charge curve of battery with the linear relevant voltage range of SOC
[Vr1,Vr2],V∈[Vr1,Vr2]；
S2, the charging section for being suitble to do SOH estimation in battery use process is chosen according to voltage range [Vr1, Vr2]；
S3, it calculates SOH estimation charging section and is filled with electricity Qch；
S4, charging section whole story voltage is estimated according to SOH, it is poor to calculate charging section state-of-charge according to the charging curve established
Different △ SOCv；
S5, estimation battery current capacities Qc；According to Qc=Qch/ △ SOCv, the longevity of battery is estimated using following formula
Life:
SOH=Qc/QN=Qch/ (△ SOCv*QN).
The disclosure provides also a kind of vehicle, which is configured as executing in the battery life evaluation method of above-mentioned vehicle
Step performed by vehicle.
The disclosure provides also a kind of charging pile, which is configured as executing in the battery life evaluation method of above-mentioned vehicle
Charging pile performed by step.
The disclosure provides also a kind of server, which is configured as executing in the battery life evaluation method of above-mentioned vehicle
Server performed by step.
The disclosure also provides a kind of battery life estimating system of vehicle, which includes vehicle, server and charging pile.
Wherein, vehicle is used to send estimation request with vehicle to the charging pile connecting, and estimation request includes the dependency number of the battery of vehicle
According to the vehicle model information with vehicle；Charging pile or server are used to search corresponding algorithm according to vehicle model information, and according to corresponding
Algorithm and related data estimate the SOH of the battery of vehicle；Vehicle is for exporting the SOH of battery.
Figure 11 is the block diagram of a kind of electronic equipment 1100 shown according to an exemplary embodiment.For example, electronic equipment
1100 may be provided as the electronic equipment in vehicle or charging pile.As shown in figure 11, which may include: place
Manage device 1101, memory 1102.The electronic equipment 1100 can also include multimedia component 1103, input/output (I/O) interface
One or more of 1104 and communication component 1105.
Wherein, processor 1101 is used to control the integrated operation of the electronic equipment 1100, to complete the electricity of above-mentioned vehicle
All or part of the steps in the life estimation method of pond.Memory 1102 is for storing various types of data to support in the electricity
The operation of sub- equipment 1100, these data for example may include any application program for operating on the electronic equipment 1100
Or the instruction and the relevant data of application program of method, such as contact data, the message of transmitting-receiving, picture, audio, video
Etc..The memory 1102 can realize by any kind of volatibility or non-volatile memory device or their combination,
Such as static random access memory (Static Random Access Memory, abbreviation SRAM), electrically erasable is only
It reads memory (Electrically Erasable Programmable Read-Only Memory, abbreviation EEPROM), it is erasable
Except programmable read only memory (Erasable Programmable Read-Only Memory, abbreviation EPROM), may be programmed only
It reads memory (Programmable Read-Only Memory, abbreviation PROM), read-only memory (Read-Only Memory,
Abbreviation ROM), magnetic memory, flash memory, disk or CD.Multimedia component 1103 may include screen and audio component.
Wherein screen for example can be touch screen, and audio component is used for output and/or input audio signal.For example, audio component can be with
Including a microphone, microphone is for receiving external audio signal.The received audio signal can be further stored in
Memory 1102 is sent by communication component 1105.Audio component further includes at least one loudspeaker, for exporting audio letter
Number.I/O interface 1104 provides interface between processor 1101 and other interface modules, other above-mentioned interface modules can be key
Disk, mouse, button etc..These buttons can be virtual push button or entity button.Communication component 1105 is used for the electronic equipment
Wired or wireless communication is carried out between 1100 and other equipment.Wireless communication, such as Wi-Fi, bluetooth, near-field communication (Near
Field Communication, abbreviation NFC), 2G, 3G, 4G, NB-IOT, eMTC or other 5G etc. or they one of
Or several combinations, it is not limited here.Therefore the corresponding communication component 1105 may include: Wi-Fi module, bluetooth mould
Block, NFC module etc..
In one exemplary embodiment, electronic equipment 1100 can be by one or more application specific integrated circuit
(Application Specific Integrated Circuit, abbreviation ASIC), digital signal processor (Digital
Signal Processor, abbreviation DSP), digital signal processing appts (Digital Signal Processing Device,
Abbreviation DSPD), programmable logic device (Programmable Logic Device, abbreviation PLD), field programmable gate array
(Field Programmable Gate Array, abbreviation FPGA), controller, microcontroller, microprocessor or other electronics member
Part is realized, for executing the battery life evaluation method of above-mentioned vehicle.
In a further exemplary embodiment, a kind of computer readable storage medium including program instruction is additionally provided, it should
The step of battery life evaluation method of above-mentioned vehicle is realized when program instruction is executed by processor.For example, the computer can
Reading storage medium can be the above-mentioned memory 1102 including program instruction, and above procedure instruction can be by electronic equipment 1100
Reason device 1101 is executed to complete the battery life evaluation method of above-mentioned vehicle.
Figure 12 is the block diagram of a kind of electronic equipment 1200 shown according to an exemplary embodiment.For example, electronic equipment
1200 may be provided as a server.Referring to Fig.1 2, electronic equipment 1200 includes processor 1222, and quantity can be one
Or multiple and memory 1232, for storing the computer program that can be executed by processor 1222.It is stored in memory 1232
Computer program may include it is one or more each correspond to one group of instruction module.In addition, processor
1222 can be configured as the execution computer program, to execute the battery life evaluation method of above-mentioned vehicle.
In addition, electronic equipment 1200 can also include power supply module 1226 and communication component 1250, the power supply module 1226
It can be configured as the power management for executing electronic equipment 1200, which can be configured as realization electronic equipment
1200 communication, for example, wired or wireless communication.In addition, the electronic equipment 1200 can also include that input/output (I/O) connects
Mouth 1258.Electronic equipment 1200 can be operated based on the operating system for being stored in memory 1232, such as Windows
ServerTM, Mac OS XTM, UnixTM, LinuxTM etc..
In a further exemplary embodiment, a kind of computer readable storage medium including program instruction is additionally provided, it should
The step of battery life evaluation method of above-mentioned vehicle is realized when program instruction is executed by processor.For example, the computer can
Reading storage medium can be the above-mentioned memory 1232 including program instruction, and above procedure instruction can be by electronic equipment 1200
Reason device 1222 is executed to complete the battery life evaluation method of above-mentioned vehicle.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (12)
1. a kind of battery life evaluation method of vehicle, which is characterized in that the described method includes:
The vehicle sends estimation request to the charging pile connecting with the vehicle, and the estimation request includes the electricity of the vehicle
The vehicle model information of the related data in pond and the vehicle；
The charging pile or server search corresponding algorithm according to the vehicle model information, and according to the corresponding algorithm and institute
State related data estimate the vehicle battery SOH；
The vehicle or the charging pile export the SOH of the battery.
2. the method according to claim 1, wherein the estimation request further includes the identity letter of the vehicle
Breath, the charging pile or server search corresponding algorithm according to the vehicle model information, and according to the corresponding algorithm and institute
State related data estimate the vehicle battery SOH, comprising:
The charging pile or the server are in the case where confirming the identity information by verifying, according to the vehicle model information
Corresponding algorithm is searched, and estimates the SOH of the battery of the vehicle according to the corresponding algorithm and the related data.
3. the method according to claim 1, wherein the vehicle is sent to the charging pile connecting with the vehicle
Before estimation request, the method also includes:
The vehicle sends the identity information of the vehicle to the charging pile；
In the case where confirming the identity information by verifying, Xiang Suoshu vehicle sends true for the charging pile or the server
Recognize message,
The vehicle sends estimation request to the charging pile that connect with the vehicle, comprising: the vehicle receive it is described really
In the case where recognizing message, estimation request is sent to the charging pile connecting with the vehicle.
4. according to the method in claim 2 or 3, which is characterized in that the method also includes:
The SOH of the battery is sent to terminal associated with the identity information of the vehicle by the server, so that described
Terminal exports the SOH of the battery.
5. the method according to claim 1, wherein being estimated according to the corresponding algorithm and the related data
Calculate the SOH of the battery of the vehicle, comprising:
S1, cell voltage V is chosen from the constant current initial charge curve of the battery with the linear relevant voltage range of SOC
[Vr1,Vr2],V∈[Vr1,Vr2]；
S2, the charging section for being suitble to do SOH estimation in the battery use process is chosen according to voltage range [Vr1, Vr2]；
S3, calculate that SOH estimates the charging section be filled with electricity Qch；
S4, the charging section whole story voltage is estimated according to SOH, it is poor to calculate charging section state-of-charge according to the charging curve established
Different △ SOCv；
S5, estimation battery current capacities Qc；According to Qc=Qch/ △ SOCv, the longevity of the battery is estimated using following formula
Life:
SOH=Qc/QN=Qch/ (△ SOCv*QN).
6. a kind of battery life evaluation method of vehicle, which is characterized in that be applied to vehicle, including as appointed in claim 1-5
Step performed by vehicle in the battery life evaluation method of vehicle described in one.
7. a kind of battery life evaluation method of vehicle, which is characterized in that be applied to charging pile, including as in claim 1-5
Step performed by charging pile in the battery life evaluation method of described in any item vehicles.
8. a kind of battery life evaluation method of vehicle, which is characterized in that be applied to server, including as in claim 1-5
Step performed by server in the battery life evaluation method of described in any item vehicles.
9. a kind of vehicle, which is characterized in that the vehicle is configured as executing vehicle according to any one of claims 1 to 5
Battery life evaluation method in vehicle performed by step.
10. a kind of charging pile, which is characterized in that the charging pile is configured as executing as described in any one of claim 1-5
Vehicle battery life evaluation method in charging pile performed by step.
11. a kind of server, which is characterized in that the server is configured as executing as described in any one of claim 1-5
Vehicle battery life evaluation method in server performed by step.
12. a kind of battery life estimating system of vehicle characterized by comprising vehicle, server and charging pile, wherein
The vehicle is used to send estimation request with the vehicle to the charging pile connecting, and the estimation request includes the vehicle
Battery related data and the vehicle vehicle model information；
The charging pile or server are used to search corresponding algorithm according to the vehicle model information, and according to the corresponding algorithm
The SOH of the battery of the vehicle is estimated with the related data；
The vehicle or the charging pile are for exporting the SOH of the battery.
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