CN104598714A - Computation device, method and computer readable recording medium for vehicle battery remaining capacity available - Google Patents
Computation device, method and computer readable recording medium for vehicle battery remaining capacity available Download PDFInfo
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- CN104598714A CN104598714A CN201410520057.4A CN201410520057A CN104598714A CN 104598714 A CN104598714 A CN 104598714A CN 201410520057 A CN201410520057 A CN 201410520057A CN 104598714 A CN104598714 A CN 104598714A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
Abstract
A computation device for a vehicle battery remaining capacity available of an embodiment of the invention comprises a full charge capacity computing portion computing a relatively full charge capacity according to a present SOH (State of Health), an energy storing capacity computing portion computing a present available energy storing capacity of a battery, a relative charge state computing portion computing a relative charge state of the battery according to the computed relatively full charge capacity and the computed energy storing capacity and a practically available energy conversion capacity computing portion computing the pratically available energy conversion capacity according to the computed relatively full charge state and an available scope of SOC (State of Charge) of the vehicle design.
Description
Technical field
Embodiments of the invention relate to the available residual capacity calculation of battery, such as, relate to available residual capacity calculation apparatus and the method for the vehicle battery of the available residual capacity can calculating Vehicular battery, and computer-readable recording medium.
Background technology
The crisis of reply atmospheric pollution and oil exhaustion, just uses electric energy for the relevant technology of the electronic car (electric vehicle) of vehicle power at active development.Battery system comprises high-voltage battery group, for controlling PRA (the Power relay assay of discharge and recharge, power relay detects), for improving the fan blower of the cooling performance of electric battery, safety feature and plug cut-out (Safety plug), wire harness, monitoring control the battery management system (BMS, Battery Management System-battery management system) of the status information of electric battery and works etc.Residual capacity calculates the voltage, electric current, temperature etc. of monitoring electric battery, calculates with the performance-relevant parameter of battery system and carries out correction, and be communicated to BMS and driver according to environment for use.
Charged state (the State Of Charge-charged state of battery, hereinafter referred to as SOC) cannot directly measure, indirectly can use Current integrating method (Coulomb counting, coulomb counting), potentiometric (Open circuit voltage, open-circuit voltage), discharge power scaling method (Look up table, the table of comparisons), the calculation method such as impedance measurements (Impedance tracking, impedance follow the trail of) calculates.Conventional art is comprehensive at least two methods used in described calculation method.According to the difference of the algorithm of the SOC calculation for predicting actual battery, the battery charging and discharging error at measurment of calculation is also different.Further, the degree of degeneration according to actual battery cannot be considered and the electrochemical parameter that initial stage calculated value changes.Therefore, the situation of conventional art is, is the scope of 0% to 100% as hypotheses SOC, according to vehicle environmental, optionally selects multiple algorithm and predict the SOC of actual battery from described algorithm.
In addition, SOC is according to the vehicle data using battery system, and energy usable range can dissimilate.Battery system is used to the energy power supply of the driving capacity to the CD-ROM drive motor reception and registration energy, compressor (compressor) capacity for HSG (Hybrid Starter & Generator, mixed type starter and generator) capacity, vehicle electric field load capacity, air-conditioning and the heater loads of the start power generation of initial stage vehicle etc.
Further, according to the difference of power train (Power train) structure of automobile, the usable range of SOC is also different.Such as, hybrid power uses SOC20% to 80%, and plug-in hybrid electric vehicle uses SOC15% to 90%, and electronic car uses the available power of SOC5% to 95%.
Further, the available power scope of battery system is set according to the condition of the loading condiction and service life that meet each vehicle.When the energy capacity supposing battery system is 100Wh/kg, motor vehicle driven by mixed power has the available power of 60%, and plug-in hybrid is the available power of 75%, and electric car can be estimated as the available power of 90%.But according to the environment for use of automobile, the available power of each vehicle can reduce than the initial stage through degenerative process.Therefore, the calculation method that the SOC calculated by traditional SOC calculation method can be scaled active volume (capacity available) is needed.
Patent documentation
1. Korean Patent Application No KR2012-0137574A
Summary of the invention
(technical matters that will solve)
Embodiments of the invention provide a kind of available residual capacity calculation method of vehicle battery and computer-readable recording medium, the SOC calculated can be scaled active volume by SOC calculation method.
Further, embodiments of the invention provide a kind of available residual capacity calculation method of vehicle battery and computer-readable recording medium, can be scaled the active volume of the design conditions according to vehicle.(means of dealing with problems)
The available residual capacity calculation apparatus of vehicle battery according to an embodiment of the invention, comprising:
Complete charging capacity calculation unit, calculates the complete charging capacity of relativity of current SOH (the State Of Health-health status) state according to battery;
Energy reserves capacity calculation unit, calculates the current spendable energy reserves capacity of described battery;
Relativity charged state calculation unit, utilizes the energy reserves capacity of the complete charging capacity of relativity and the calculation of calculating out, calculates the relativity charged state of described battery; And
Actual available power conversion capacity calculation unit, considers according to the relativity charged state of calculation and SOC (the State Of Charge-charged state) usable range of Car design and calculates actual available power conversion capacity.
At this moment, described actual available power conversion capacity calculation unit, in order to the replaceable period utilizing the described actual available power conversion capacity of accumulation in certain period to calculate described battery, is sent to battery management system (Battery Management System-battery management system) or vehicle control device (Hybrid Control Unit-hybrid controller) actual available power conversion capacity.
And, the complete charging capacity of described relativity, calculate according to mathematical expression RFCC=FCC-(the drop-out value % of FCC × actual battery charging capacity), FCC be defined as vehicle install before the complete charging capacity of described battery, the drop-out value of actual battery charging capacity is defined as the described battery of reflection by the information of temporal information used.
And, the drop-out value of described actual battery charging capacity, to be installed to the complete charging capacity of the battery before described vehicle for reference value, to reflect the information of the information of the use amount of the information of the charging capacity of described battery, described battery, the residual capacity of described battery and from the initial stage of described battery, at least one information time point temporal information be up to the present installed.
Further, the calculating of described FCC utilizes CC/CV (Constant Current/Constant Voltage-constant current/constant voltage) method.
And, described energy reserves capacity is the current energy reserves capacity of described battery, at least uses a calculation in Current integrating method (Coulomb counting), potentiometric (Open circuit voltage), discharge power scaling method (Look up table) and impedance measurements (Impedance tracking) calculation method.
Further, described relativity charged state passes through mathematical expression
calculate, RC is defined as described energy reserves capacity, and RFCC is defined as the complete charging capacity of described relativity.
Further, the actual available power conversion capacity of described vehicle passes through mathematical expression
calculate, RSOC is defined as described relativity charged state, and available battery capacity is defined as the information calculated based on the environmental information of described vehicle and health status (the SOH:State Of Health) information of described battery.
Further, the environmental information of described vehicle, comprises the vehicle class information of the default different settings according to the kind of described vehicle and presets at least one in the power train information of different settings according to the kind of powertrain arrangement.
Further, described vehicle is any one in HEV (Hybrid Electric Vehicle-hybrid vehicle), PHEV (Plug-in Hybrid Electric Vehicle-plug-in hybrid-power automobile) and EV (Electric Vehicle).
Further, the charged state of described relativity is considered the whole usable range of the SOC of described battery and calculates.
Further, described relativity complete charging capacity calculation process only performs when the request of BMS (Battery Management System-battery management system) or host controller to actual available power conversion capacity calculation process.
In addition, the battery that another embodiment of the present invention provides can use residual capacity calculation method, comprise: relativity complete charging capacity calculation process, calculate the complete charging capacity of relativity of current SOH (the State Of Health-health status) state according to battery; Energy reserves capacity calculation process, calculates the current spendable energy reserves capacity of described battery; Relativity charged state calculation process, utilizes the complete charging capacity of relativity of calculation and the energy reserves capacity of calculation and calculates the relativity charged state of described battery; And actual available power conversion capacity calculation process, consider according to the relativity charged state of calculation and SOC (the State Of Charge-charged state) usable range of Car design and calculate actual available power conversion capacity.
And, described available residual capacity calculation method, also comprises: the process described actual available power conversion capacity being sent to battery management system (Battery Management System-battery management system) or vehicle control device (Hybrid Control Unit-hybrid controller); And the process utilizing the described actual available power conversion capacity of accumulation in certain period and calculate the replaceable period of described battery.
In addition, computer-readable recording medium can be saved in the information of the active volume calculation method of vehicle battery.This recording medium comprises that preserve can by the recording medium of all kinds of the program of computer system reads and data.Such as, ROM (read-only memory) (ROM:Read Only Memor y), random access memory (RAM:Random Access Memory), CD (Compact Disk, CD), DVD (Digital Video Disk, digital video disc)-ROM, tape, flexible plastic disc, optical data save set, embedded multi-media card (eMMC) etc., and, also comprise electric wave (such as, by the transmission of internet) form to present.Further, this recording medium is distributed to the computer system connected with network, by dispersing mode, can preserve and perform computer-readable code.
(effect of invention)
According to embodiments of the invention, SOC can be scaled active volume.
In embodiments of the invention, the active volume of the design conditions according to vehicle can be scaled.
Accompanying drawing explanation
Fig. 1 is the block diagram of the available residual capacity calculation apparatus of vehicle battery according to the embodiment of the present invention.
Fig. 2 is the process flow diagram of diagram according to the running of the available residual capacity calculation method of the vehicle battery of the embodiment of the present invention.
Embodiment
Below, describe in detail according to exemplary embodiments of the present invention with reference to the content described in accompanying drawing.But the present invention is not limited to described exemplary embodiments.Further, identical reference marks shown in the drawings represents in fact the parts with identical function.
1st, the term comprising ordinal number such as the 2nd can be used for different inscapes is described, but described inscape is not limited to described term.Described term is only for distinguishing another inscape from an inscape.Such as, when not departing from interest field of the present invention, the 1st inscape can be named as the 2nd inscape, identical therewith, and the 2nd inscape also can be named as the 1st inscape.The term used in the application, just in order to specific embodiment is described, is not meant to limit the present invention.Except have the clearly different meanings on context except, odd number comprises plural number.
Consider function in the present invention, to the term used in the present invention, have selected now widely used general term as far as possible, can be changed according to appearance of the intention of those skilled in the relevant art or legal precedent, new technology etc.Further, under particular case, also there will be the optional term of applicant, at this moment, record its meaning in detail by the declaratives of corresponding invention.Therefore, the term used in the present invention is not the title of simple term, and should based on this term have the meaning and whole content of the present invention and being defined.
In whole instructions, except having particular provisions, certain part " comprising " a certain inscape does not refer to gets rid of other inscapes, and refers to and also can comprise other inscapes.Further, record in instructions " ... portion ", " module ", terms such as " blocks " refers to the unit of at least one function of process or running, can be rendered as the combination of hardware or software or hardware and software.
Traditional general battery system SOC calculation method is the calculation method whole capacity of the energy being assumed the scope of SOC0% to 100%.Further, according to available power setting range in the discharge and recharge configuration file of battery, spendable energy capacity can be different, because of service time and the degree of degeneration difference according to the battery of the environment for use of battery, different from the capacity that the initial stage is designed.
The available residual capacity calculation method of vehicle battery according to an embodiment of the invention, in order to make up the shortcoming of described traditional SOC calculation method, generate the information reflecting the actual available power conversion capacity of the vehicle of the state of the battery being installed to current vehicle and the Environmental parameter of vehicle, provide the information to the battery active volume (Battery remaining capacity available) measuring time point to user.Driver, based on the information provided, judges the actual travel distance according to the management of the energy-consuming of vehicle and available power.
In addition, in order to contribute to understanding the available residual capacity calculation method of vehicle battery according to an embodiment of the invention, by following content-defined term.
The complete charging capacity of relativity (Relative Full Charge Capacity according to an embodiment of the invention, hereinafter referred to as RFCC) in, traditional complete charging capacity represents the complete charging capacity of the pure battery before being set to vehicle, but spendable capacity when RFCC represents that the reality of the health status according to battery being arranged on current vehicle is charged completely according to an embodiment of the invention, is defined as following mathematical expression.
RFCC=FCC-(the drop-out value % of FCC × actual battery charging capacity)
Here, FCC represents the complete charging capacity of the battery before being installed to vehicle, and the drop-out value % of actual battery charging capacity represents and is installed to vehicle and the drop-out value reflecting the charging capacity of the actual battery of time used.Be the reference value of 100% to the information of the drop-out value of the charging capacity of actual battery with the complete charging capacity that the initial stage is installed to the pure battery before vehicle time point, comprise the information of charging capacity, the information of battery use amount, the information of the residual capacity of battery, battery initial stage install at least one in the information of time point time up to the present and calculate.Such as, the value of the FCC of initial cell is 10Ah, and the battery set-up time is not to the time point of 5 years, if the drop-out value of the charging capacity of battery is 10%, the drop-out value (RFCC) can calculating the charging capacity of actual battery is 9Ah.
Relativity charged state (Relative State Of Charge-charged state according to an embodiment of the invention, hereinafter referred to as RSOC) be algorithm for the available residual capacity calculation method of vehicle battery according to an embodiment of the invention, be defined as following mathematical expression.
Here, RSOC represents the value of the energy reserves capacity of current battery divided by the complete charging capacity of prediction when charging completely, and RC represents the energy reserves capacity of current battery, and RFCC represents the complete charging capacity of relativity.
Actual available power conversion capacity (the Automotive Relative State Of Charge-charged state of vehicle, hereinafter referred to as ARSOC) be algorithm for the available residual capacity calculation method of vehicle battery according to an embodiment of the invention, be defined as following mathematical expression.
Here, available battery capacity is health status (SOH, the State Of Health-health status) information of the battery provided based on environmental information and the battery management system (BMS) by vehicle and the information generated.
The environmental information of vehicle comprises and presets the vehicle class information of different setting values according to the kind of vehicle, preset the power train information of the parameter information of different setting values according to the kind of powertrain arrangement.
Vehicle class information and power train information in advance by the tables of data form with the other information matches of each vehicle model, can be saved in recording medium in vehicle (not shown).
The other information of vehicle model comprises the other information of EV (Electric Vehicle) vehicle model, the other information of BEV (Battery Electric Vehicle) vehicle model, HEV (Hybrid Electric Vehicle-hybrid vehicle) the other information of vehicle model, PHEV (Plug-in Hybrid Electric Vehicle-plug-in hybrid-power automobile) the other information of vehicle model, at least one in FCEV (Fuel Cell Electric Vehicle-FC-EV) the other information of vehicle model and the other information of NEV (near Neighborhood Eclectic Vehicle-vehicle) vehicle model.
With reference to the following drawings, available residual capacity calculation apparatus and the method for vehicle battery are according to an embodiment of the invention described.
Fig. 1 is the block diagram of the available residual capacity calculation apparatus of vehicle battery according to an embodiment of the invention.With reference to Fig. 1, the available residual capacity calculation apparatus 100 of battery is made up of battery 110, BMS (Battery Management System-battery management system) 120, control part 130 and host controller 140 etc.
Battery 110 is made up of battery unit (not shown) series winding and/or parallel connection, and this battery unit can be the environmental protection Vehicular batteries such as nickel metal battery, lithium ion battery.
Here, for Cleaning Equipment, comprise EV (Electric Vehicle, electronic car), HEV (Hybrid Electric Vehicle-hybrid vehicle), PHEV (Plug-in Hybrid Electric Vehicle-plug-in hybrid-power automobile), fuel-cell vehicle etc.
BMS120 has the function maintaining and manage battery 110.Furtherly, the electric quantity balancing sensing the voltage of battery 110 and/or the battery information such as electric current and/or temperature or perform battery 110.Further, this battery information is sent to host controller.
Host controller 140 refers to HCU (Hybrid Control Unit-hybrid controller), ECU (Electric Control Unit-electronic control unit) etc.
Control part 130 comprises: charging capacity calculation unit 131 completely, calculates the complete charging capacity of relativity of current SOH (the State Of Health-health status) state according to battery 110; Energy reserves capacity calculation unit 133, calculates the current spendable energy reserves capacity of described battery 110; Relativity charged state calculation unit 135, utilizes the complete charging capacity of relativity of calculation and the energy reserves capacity of calculation and calculates the relativity charged state of described battery 110; Actual available power conversion capacity calculation unit 137, considers SOC (the State Of Charge-charged state) usable range according to the relativity charged state calculated and Car design, calculates actual available power conversion capacity.
Although illustrate control part 130 separately in Fig. 1, also BMS can be merged into.
Fig. 2 is the process flow diagram of the running of the available residual capacity calculation method illustrating vehicle battery according to an embodiment of the invention.With reference to Fig. 2, first, the available residual capacity calculation apparatus of vehicle battery can receive the solicited message (S210) that request calculation battery can use residual capacity according to an embodiment of the invention.
Furtherly, only when the request of BMS (Battery Management System-battery management system) or host controller, just S220 to S260 is performed.
Request calculation battery can be able to be the information sent by least one in other control parts in the vehicles such as battery management system (Battery Management System-battery management system, hereinafter referred to as BMS), host controller and vehicle control device (Hybrid Control Unit-hybrid controller) by the solicited message of residual capacity.Further, except the control part being arranged on vehicle, can also be the information that any electronic installation by carrying out communicating with the available residual capacity calculation apparatus of vehicle battery of the present invention sends.
Then, the available residual capacity calculation apparatus of vehicle battery can calculate the complete charging capacity of relativity (RFCC) (S220).RFCC is spendable capacity when charging completely according to the reality of health status of the battery being arranged on current vehicle, calculates by following mathematical expression.
RFCC=FCC-(the drop-out value % of FCC × actual battery charging capacity)
Here, FCC represents that the complete charging capacity of battery installed by vehicle, and the drop-out value of actual battery charging capacity represents and is installed to vehicle and the drop-out value that reflects the charging capacity of the actual battery of the time of actual use.
Be the reference value of 100% to the information of the drop-out value of the charging capacity of actual battery with the complete charging capacity that the initial stage is installed to the pure battery before vehicle time point, comprise the information of charging capacity, the information of battery use amount, the information of the residual capacity of battery, battery initial stage install in the information of time point time up to the present at least one.
Then, the available residual capacity calculation apparatus of vehicle battery can calculate energy reserves capacity (RC) (S230) of current battery.RC is the energy reserves capacity of current battery, and at least one that can use in the calculation methods such as Current integrating method (Coulomb counting), potentiometric (Open circuit voltage), discharge power scaling method (Look up table), impedance measurements (Impedance tracking) calculates.
Afterwards, the available residual capacity calculation apparatus of vehicle battery can calculate relativity charged state (RSOC) (S240).RSOC represents relativity charged state, calculates by following mathematical expression.
Here, RC represents the energy reserves capacity of current battery, and RFCC represents the complete charging capacity of relativity.
Especially, the charged state of relativity is considered the usable range of the SOC of described battery whole (that is, SOC0 ~ 100%) and calculates.
The available residual capacity calculation apparatus of vehicle battery can calculate the actual available power conversion capacity (ARSOC) (S250) of vehicle.ARSOC is calculated by following mathematical expression.
Here, available battery capacity be the battery provided based on environmental information and the battery management system (BMS) by vehicle health status (SOH) information based on and the information that generates.
Afterwards, the available residual capacity calculation apparatus of vehicle battery generates the actual available power conversion capacity information of vehicle and transmits (S260).The actual available power conversion capacity information of vehicle generates based on the ARSOC calculated in described S250 process.
Further, the available residual capacity calculation apparatus of vehicle battery can be sent to battery management system or vehicle control device (HCU, ECU etc.) the actual available power conversion capacity information of the vehicle generated.
Further, media (not shown) are preserved in the vehicle that the available residual capacity calculation apparatus of vehicle battery is saved in the actual available power conversion capacity information of vehicle generated the actual available power conversion capacity information preserving existing vehicle.
Further, the available residual capacity calculation apparatus of vehicle battery based on the vehicle preserved actual available power conversion capacity information and calculate replaceable period of battery, thus generate battery altering temporal information.Battery altering temporal information based on relativity charging status information and vehicle fuel consumption efficiency and generate.
Further, the available residual capacity calculation apparatus of vehicle battery can be sent to battery management system or vehicle control device the battery altering temporal information generated.
In addition, the available residual capacity calculation method of above-mentioned vehicle battery is according to an embodiment of the invention rendered as the program command form performed by multiple computer means, can be saved in computer-readable recording medium.Described computer-readable media comprises program command, data file, data structure etc. or these combination.The described program command being saved in media designs especially in order to the present invention or forms, and also can be that the technician of computer software industry is known and spendable.Computer-readable recording medium comprises the magnetic mediums (magnetic media) such as hard disk, flexible plastic disc and tape; The optical storage medias such as CD-ROM, DVD (optical media); Magnet-optical medium (magneto-optical media) and ROM (read-only memory) (ROM), random access memory (RAM), the flash memories etc. such as soft CD (floptical disk) can be preserved and the hardware unit with special construction of executive routine order.Program command except comprise the machine language code that completes according to program compiler, also include the use of interpretive routine, the executable higher-level language code of computing machine.For realizing running of the present invention, described hardware unit can be configured to be started by more than one software module, and vice versa.
As mentioned above, the present invention is described according to the embodiment of the specific items such as concrete inscape and restriction and accompanying drawing, but this is just in order to explain the present invention more all sidedly, instead of referring to that the present invention is defined in described embodiment, the people that the technical field of the invention has general knowledge can carry out multiple modifications and changes by described record.
Therefore, technological thought of the present invention can not be confined to the embodiment illustrated, is not only Patent right requirement scope described later, and impartial with this right or there is equal distortion all belong to the category of the technology of the present invention thought.
Claims (15)
1. an available residual capacity calculation apparatus for battery, comprising:
Complete charging capacity calculation unit, calculates the complete charging capacity of relativity of current SOH (the State Of Health-health status) state according to battery;
Energy reserves capacity calculation unit, calculates the current spendable energy reserves capacity of described battery;
Relativity charged state calculation unit, utilizes the energy reserves capacity of the complete charging capacity of relativity and the calculation of calculating out, calculates the relativity charged state of described battery; And
Actual available power conversion capacity calculation unit, considers according to the relativity charged state of calculation and SOC (the State Of Charge-charged state) usable range of Car design and calculates actual available power conversion capacity.
2. the available residual capacity calculation apparatus of battery according to claim 1, is characterized in that,
Described actual available power conversion capacity calculation unit, in order to the replaceable period utilizing the described actual available power conversion capacity of accumulation in certain period to calculate described battery, is sent to battery management system (Battery Management System-battery management system) or vehicle control device (Hybrid Control Unit-hybrid controller) actual available power conversion capacity.
3. the available residual capacity calculation apparatus of battery according to claim 1, is characterized in that,
The complete charging capacity of described relativity, calculate according to mathematical expression RFCC=FCC-(the drop-out value % of FCC × actual battery charging capacity), FCC be defined as vehicle install before the complete charging capacity of described battery, the drop-out value of actual battery charging capacity is defined as the described battery of reflection by the information of temporal information used.
4. the available residual capacity calculation apparatus of battery according to claim 3, is characterized in that,
The drop-out value of described actual battery charging capacity, to be installed to the complete charging capacity of the battery before described vehicle for reference value, to reflect the information of the information of the use amount of the information of the charging capacity of described battery, described battery, the residual capacity of described battery and from the initial stage of described battery, at least one information time point temporal information be up to the present installed.
5. the available residual capacity calculation apparatus of battery according to claim 3, is characterized in that,
The calculating of described FCC utilizes CC/CV (Constant Current/Constant Voltage-constant current/constant voltage) method.
6. the available residual capacity calculation apparatus of battery according to claim 1, is characterized in that,
Described energy reserves capacity is the current energy reserves capacity of described battery, at Current integrating method (Coulom bcounting, coulomb calculate), potentiometric (Open circuit voltage, open-circuit voltage), discharge power scaling method (Look up table, the table of comparisons) and impedance measurements (Impedance tracking, impedance with follow the trail of) calculation method at least use a calculation.
7. the available residual capacity calculation apparatus of battery according to claim 1, is characterized in that,
Described relativity charged state passes through mathematical expression
calculate, RC is defined as described energy reserves capacity, and RFCC is defined as the complete charging capacity of described relativity.
8. the available residual capacity calculation apparatus of battery according to claim 1, is characterized in that,
The actual available power conversion capacity of described vehicle passes through mathematical expression
Calculate, RSOC is defined as described relativity charged state, and available battery capacity is defined as the information calculated based on the environmental information of described vehicle and health status (SOH:StateOfHealth) information of described battery.
9. the available residual capacity calculation apparatus of battery according to claim 8, is characterized in that,
The environmental information of described vehicle, comprises the vehicle class information of the default different settings according to the kind of described vehicle and presets at least one in the power train information of different settings according to the kind of powertrain arrangement.
10. the available residual capacity calculation apparatus of battery according to claim 1, is characterized in that,
Described vehicle is any one in HEV (Hybrid Electric Vehicle-hybrid vehicle), PHEV (Plug-in Hybrid Electric Vehicle-plug-in hybrid-power automobile) and EV (Electric Vehicle-electric automobile).
The available residual capacity calculation apparatus of 11. batteries according to claim 1, is characterized in that,
The charged state of described relativity is considered the whole usable range of the SOC of described battery and calculates.
The available residual capacity calculation apparatus of 12. batteries according to claim 1, is characterized in that,
Described relativity complete charging capacity calculation process, to actual available power conversion capacity calculation process, only performs when the request of BMS (Battery Management System-battery management system) or host controller.
The available residual capacity calculation method of 13. 1 kinds of batteries, comprising:
Relativity complete charging capacity calculation process, according to current SOH (State Of Health-health status) the complete charging capacity of situation calculus relativity of battery;
Energy reserves capacity calculation process, calculates the current spendable energy reserves capacity of described battery;
Relativity charged state calculation process, utilizes the complete charging capacity of relativity of calculation and the energy reserves capacity of calculation and calculates the relativity charged state of described battery; And
Actual available power conversion capacity calculation process, considers according to the relativity charged state of calculation and SOC (the State Of Charge-charged state) usable range of Car design and calculates actual available power conversion capacity.
The available residual capacity calculation method of 14. batteries according to claim 13, is characterized in that,
Also comprise:
Described actual available power conversion capacity is sent to the process of battery management system (Battery Management System-battery management system) or vehicle control device (Hybrid Control Unit-hybrid controller); And
Utilize the described actual available power conversion capacity of accumulation in certain period and the process that calculates the replaceable period of described battery.
15. 1 kinds of machine readable recording mediums,
Have recorded the program of each process of the available residual capacity calculation method for performing the vehicle battery according to claim 13 or 14 on computers.
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| KR1020130130969A KR102177723B1 (en) | 2013-10-31 | 2013-10-31 | Computations method and computer readable recording medium for vehicle battery remaining capacity available |
| KR10-2013-0130969 | 2013-10-31 |
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| CN112014751A (en) * | 2020-09-04 | 2020-12-01 | 福建飞毛腿动力科技有限公司 | SOC estimation method based on estimation of actual dischargeable capacity of lithium ion battery |
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| KR102091340B1 (en) * | 2018-12-11 | 2020-03-19 | 연세대학교 산학협력단 | Battery level indicator and method displaying battery level thereof |
| KR102395182B1 (en) * | 2021-11-30 | 2022-05-10 | 모나일렉트릭 주식회사 | Battery diagnostic method and apparatus |
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| KR20150049860A (en) | 2015-05-08 |
| KR102177723B1 (en) | 2020-11-11 |
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