CN105590036A - Automobile battery management method, system and device - Google Patents

Automobile battery management method, system and device Download PDF

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Publication number
CN105590036A
CN105590036A CN201610169607.1A CN201610169607A CN105590036A CN 105590036 A CN105590036 A CN 105590036A CN 201610169607 A CN201610169607 A CN 201610169607A CN 105590036 A CN105590036 A CN 105590036A
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voltage
magnitude
value
voltage value
current
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CN105590036B (en
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金碧凡
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Guangzhou Fenxiang Car Networking Technology Co Ltd
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Guangzhou Fenxiang Car Networking Technology Co Ltd
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    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Z—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR
    • G16Z99/00—Subject matter not provided for in other main groups of this subclass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to an automobile battery management method, system and device. The method comprises the following steps: obtaining the ACC state of an automobile, and simultaneously, detecting the voltage value of an automobile battery and the change trend of the voltage value through a MCU; obtaining the required time corresponding to a current voltage value after rising by one preset value; calculating the required time of the automobile battery when the voltage is full from the current voltage; obtaining the travel distance number between the current voltage value and the next voltage value through a GPS module; and calculating the endurance distance number of the current voltage value. According to the invention, the characteristics of the automobile battery can be judged according to the latest data; therefore, the method has real-time property and the accuracy; and the result is more real and reliable.

Description

A kind of automobile batteries management method, system and device
Technical field
The present invention relates to automobile batteries management method, system and device.
Background technology
Current new energy vehicle on the market all has the demonstration of battery electric quantity, has plenty of the LED of usingLamp represents, has plenty of and represents by numeral, and common ground is all to detect electricity by I/O mouthPond current voltage shows, or calculate can for this car standard theory value providing by depotCourse continuation mileage number.
But no matter be lead-acid accumulator or lithium battery, there is the spy of cell decay and empty electricityProperty. Once using, battery after half a year, all can there is this class phenomenon.
What depot provided can course continuation mileage all by calculating above theory, but in fact everyThe environment of a user institute steering vehicle, on-job and individual driving behavior are all different, thereby simpleThe data that provide according to depot weigh the real course continuation mileage number of this car and be inaccurate.
Summary of the invention
For above-mentioned technical problem, the object of the present invention is to provide the one can be according to automobile electricThe actual conditions real-time analysis charging required time in pond and automobile batteries that can course continuation mileage numberManagement method, system and device.
For achieving the above object, the present invention adopts following technical scheme:
Scheme one:
A kind of automobile batteries management method, comprises the steps:
Steps A: obtain the ACC state of automobile, detect the electricity of automobile batteries simultaneously by MCUThe variation tendency of pressure value and this magnitude of voltage, this ACC state comprises static and motion, this variationTrend comprises decline and rises;
When ACC state is static, and variation tendency for rise time, execution step B; Work as ACCState for motion, and variation tendency for decline time, execution step D;
Step B: obtain the current voltage value corresponding required time after a preset value that rises, whenA preset value postscript of front magnitude of voltage rising is next magnitude of voltage, passes through formula: Ai+1/B＝Ci+1Obtain the curve values of this next one magnitude of voltage, and obtain charging characteristic curve figure; Wherein, AiFor current voltage value, Ai+1For next magnitude of voltage, B is that current voltage value rises to next electricityPressure is worth corresponding required time, CiFor the curve values of this current magnitude of voltage, Ci+1For the next oneThe curve values of magnitude of voltage; Perform step afterwards C;
Step C: according to formula: T=Ai*Ci+Ai+1*Ci+1+……+Ar*1.2*CrCalculate automobileRequired time when battery rises to full electricity by current voltage, wherein, T is that current voltage rises toRequired time when full electricity, ArFor maximum voltage value, CrFor the curve values of maximum voltage value;
Step D: obtain the row between current voltage value and next magnitude of voltage by GPS moduleSail mileage number, next magnitude of voltage is the magnitude of voltage that current voltage value declines after a preset value,Perform step afterwards E;
Step e: according to formula S=S1+S2+……Sn+SrCalculate in the continuing a journey of current voltage valueNumber of passes, wherein, S be current voltage value can course continuation mileage number, S1For current voltage value with underDistance travelled number between a magnitude of voltage, S2For next magnitude of voltage and next but one magnitude of voltageBetween distance travelled number, defining next magnitude of voltage is first magnitude of voltage, next but one electricityPressure value is second magnitude of voltage, SnBe (n-1) individual magnitude of voltage and n magnitude of voltage itBetween distance travelled number, SrIt is the distance travelled number between n magnitude of voltage and minimum voltage value.
Preferably, described preset value is 1V.
Preferably, described minimum voltage value equals nominal voltage value and is multiplied by 0.8.
Preferably, described maximum voltage value equals nominal voltage value and is multiplied by 1.2.
Scheme two:
A kind of automobile batteries management system, comprises GPS unit, MCU, detecting unit, wirelessCommunication unit, power subsystem and server, described GPS unit, detecting unit, channel radioLetter unit is all connected with MCU with power subsystem, and described wireless communication unit also connects with serverConnect; Described GPS is for detection of the distance travelled number of automobile, and sends this distance travelled number extremelyMCU; Described detecting unit is for detection of the ACC state of automobile, and sends this ACC state extremelyMCU; Described MCU is for obtaining the magnitude of voltage of automobile batteries, and by wireless communication unit incite somebody to actionDistance travelled number, ACC state and magnitude of voltage are sent to server; Described server is for basisWhat distance travelled number, ACC state and magnitude of voltage calculated current voltage value can course continuation mileage numberOr automobile batteries rises to full when electricity required time by current voltage.
Preferably, also comprise display screen, this display screen is connected with server.
Scheme three:
A kind of automobile batteries management devices, comprising:
State acquisition module: for obtaining the ACC state of automobile, simultaneously detect vapour by MCUThe magnitude of voltage of car battery and the variation tendency of this magnitude of voltage, this ACC state comprises static and fortuneMoving, this variation tendency comprises decline and rises;
When ACC state is static, and variation tendency for rise time, time of implementation acquisition module;When ACC state for motion, and variation tendency for decline time, carry out distance travelled count acquisition module;
Time-obtaining module: for obtaining the current voltage value corresponding institute after a preset value of risingTake time, a preset value postscript of current voltage value rising is next magnitude of voltage, passes through formula:Ai+1/B＝Ci+1Obtain the curve values of this next one magnitude of voltage, and obtain charging characteristic curve figure; ItsIn, AiFor current voltage value, Ai+1For next magnitude of voltage, B is that current voltage value rises to downA corresponding required time of magnitude of voltage, CiFor the curve values of this current magnitude of voltage, Ci+1ForThe curve values of next magnitude of voltage; Time of implementation computing module afterwards;
Time Calculation module: for according to formula: T=Ai*Ci+Ai+1*Ci+1+……+Ar*1.2*CrRequired time when calculating automobile batteries rises to full electricity by current voltage, wherein, T is current electricityPress the required time while rising to full electricity, ArFor maximum voltage value, CrFor the song of maximum voltage valueLine value;
Distance travelled is counted acquisition module: for obtain current voltage value and next by GPS moduleDistance travelled number between individual magnitude of voltage, next magnitude of voltage is that current voltage value declines one in advanceIf the magnitude of voltage after value, carries out mileage number computing module afterwards;
Mileage number computing module: for according to formula S=S1+S2+……Sn+SrCalculate current voltageValue can course continuation mileage number, wherein, S be current voltage value can course continuation mileage number, S1For working asDistance travelled number between front magnitude of voltage and next magnitude of voltage, S2For next magnitude of voltage with underDistance travelled number between next magnitude of voltage, defining next magnitude of voltage is first voltageValue, next but one magnitude of voltage is second magnitude of voltage, SnBe (n-1) individual magnitude of voltage withDistance travelled number between n magnitude of voltage, SrBe n magnitude of voltage and minimum voltage value itBetween distance travelled number.
Preferably, described preset value is 1V.
Preferably, described minimum voltage value equals nominal voltage value and is multiplied by 0.8.
Preferably, described maximum voltage value equals nominal voltage value and is multiplied by 1.2.
Compared to existing technology, beneficial effect of the present invention is:
The present invention can judge according to up-to-date data the characteristic of automobile batteries, has real-timeAnd accuracy, result is more true and reliable.
Brief description of the drawings
Fig. 1 is the flow chart of a kind of automobile batteries management method of the present invention;
Fig. 2 is the modular structure figure of a kind of automobile batteries management system of the present invention;
Fig. 3 is charging characteristic curve figure of the present invention;
Fig. 4 is discharge characteristic curve figure of the present invention.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the present invention is described further:
Referring to Fig. 1, the invention provides a kind of automobile batteries management method, what it can be to automobileBattery information and continuation of the journey information detect and calculate, and the data up-to-date according to automobile judge thisThe characteristic of car battery, and the environment travelling according to car owner and driving behavior and this car carryHeavily come comprehensively to obtain a result, test result is truer.
Specifically comprise the steps:
Step S1: obtain the ACC state of automobile, detect automobile batteries by MCU simultaneouslyThe variation tendency of magnitude of voltage and this magnitude of voltage, this ACC state comprises static and motion, this changeChange trend comprises decline and rises;
The signal of telecommunication when ACC state of automobile refers to automobile starting, can pass through hardware interfaceJudging acquisition, is prior art; When I/O cause for gossip by MCU, read automobile batteriesMagnitude of voltage, and preserving, MCU can according to the variation of storage data value judge one completeCharging after ceiling voltage to the process of minimum voltage after electric discharge;
When ACC state is static, and variation tendency for rise time, execution step S2; Work as ACCState for motion, and variation tendency for decline time, execution step S4;
Such as the magnitude of voltage of internal memory the inside record is 38-39-40-... 56V, but at thisIn process, detect that ACC state is static, think that automobile, in charged state, reads automobileADC value, can convert nominal voltage value to, can obtain from this voltage range is 48VBattery pack, is in like manner contrasted and is actually full of electric voltage and can judges charge percentage by magnitude of voltage;
Step S2: obtain the current voltage value corresponding required time after a preset value that rises,A preset value postscript of current voltage value rising is next magnitude of voltage, passes through formula:Ai+1/B＝Ci+1Obtain the curve values of this next one magnitude of voltage, and obtain charging characteristic curve figure; ItsIn, AiFor current voltage value, Ai+1For next magnitude of voltage, B is that current voltage value rises to downA corresponding required time of magnitude of voltage, CiFor the curve values of this current magnitude of voltage, Ci+1ForThe curve values of next magnitude of voltage; Perform step afterwards S3; Preset value is preferably 1V, alsoBe to say that for example current voltage value is 3V, the preset value that rises is 4V, records 3V to 4VRequired time, 4V is current voltage value afterwards, the preset value that rises is 5V, records 4VTo 5V required time, by that analogy;
Can know according to existing technology, ceiling voltage is that nominal voltage is multiplied by 1.2, minimumVoltage is that nominal voltage is multiplied by 0.8, and the described 48V that gives an example is above nominal voltage; Thereby canBe charged at present 98% state to know: 56/ (48*1.2)=98%, and according to oftenThe time span that individual magnitude of voltage boosts just can draw the charging characteristic curve figure of this battery pack, rootCan obtain this battery every one-phase required time in the time charging, tool according to this charging characteristic curve figureBody is referring to step S3; Charging characteristic curve figure as shown in Figure 3;
Step S3: according to formula: T=Ai*Ci+Ai+1*Ci+1+……+Ar*1.2*CrCalculate automobileRequired time when battery rises to full electricity by current voltage, wherein, T is that current voltage rises toRequired time when full electricity, ArFor maximum voltage value, CrFor the curve values of maximum voltage value;
Step S4: obtain between current voltage value and next magnitude of voltage by GPS moduleDistance travelled number, next magnitude of voltage is the voltage that current voltage value declines after a preset valueValue, performs step E afterwards; Preset value is preferably 1V equally;
Such as the magnitude of voltage of internal memory the inside record is 56-55-54-...-40V, but this mistakeJourney detects that ACC state is motion, thinks that automobile is in driving condition, simultaneously according to GPSThe mileage number in this period is added up in unit, can know that this battery pack is between each voltage regionThe mileage number that he travels, thereby also can draw the discharge characteristic curve figure of this battery pack, asThis is once knowing that this battery current voltage value can flying power; Discharge characteristic curve figure asShown in Fig. 4;
Step S5: according to formula S=S1+S2+……Sn+SrCalculate in the continuing a journey of current voltage valueNumber of passes, wherein, S be current voltage value can course continuation mileage number, S1For current voltage value with underDistance travelled number between a magnitude of voltage, S2For next magnitude of voltage and next but one magnitude of voltageBetween distance travelled number, defining next magnitude of voltage is first magnitude of voltage, next but one electricityPressure value is second magnitude of voltage, SnBe (n-1) individual magnitude of voltage and n magnitude of voltage itBetween distance travelled number, SrIt is the distance travelled number between n magnitude of voltage and minimum voltage value.When preset value is 1V, suppose that current voltage value is 30V, next magnitude of voltage is 29V, noteThe distance travelled number that record 30V drops to 29V is S1, and 28V is next magnitude of voltage, 29VThe distance travelled number that drops to 28V is S2, by that analogy.
Pass between nominal voltage value and minimum voltage value, maximum voltage value is: minimum voltageValue equals nominal voltage value and is multiplied by 0.8. Described maximum voltage value equals nominal voltage value and is multiplied by1.2
Said method can solve two problems, the one, can be real-time the characteristic of electrolytic cell, rootDraw the charging interval under this electric weight according to actual conditions, another is exactly current in the process of movingThe mileage number that can continue a journey under electric weight.
On the other hand, the present invention also provides a kind of automobile batteries management devices, and it is for applying onePlant automobile batteries management method, comprising:
State acquisition module: for obtaining the ACC state of automobile, simultaneously detect vapour by MCUThe magnitude of voltage of car battery and the variation tendency of this magnitude of voltage, this ACC state comprises static and fortuneMoving, this variation tendency comprises decline and rises;
When ACC state is static, and variation tendency for rise time, time of implementation acquisition module;When ACC state for motion, and variation tendency for decline time, carry out distance travelled count acquisition module;
Time-obtaining module: for obtaining the current voltage value corresponding institute after a preset value of risingTake time, a preset value postscript of current voltage value rising is next magnitude of voltage, passes through formula:Ai+1/B＝Ci+1Obtain the curve values of this next one magnitude of voltage, and obtain charging characteristic curve figure; ItsIn, AiFor current voltage value, Ai+1For next magnitude of voltage, B is that current voltage value rises to downA corresponding required time of magnitude of voltage, CiFor the curve values of this current magnitude of voltage, Ci+1ForThe curve values of next magnitude of voltage; Time of implementation computing module afterwards;
Time Calculation module: for according to formula: T=Ai*Ci+Ai+1*Ci+1+……+Ar*1.2*CrRequired time when calculating automobile batteries rises to full electricity by current voltage, wherein, T is current electricityPress the required time while rising to full electricity, ArFor maximum voltage value, CrFor the song of maximum voltage valueLine value;
Distance travelled is counted acquisition module: for obtain current voltage value and next by GPS moduleDistance travelled number between individual magnitude of voltage, next magnitude of voltage is that current voltage value declines one in advanceIf the magnitude of voltage after value, carries out mileage number computing module afterwards;
Mileage number computing module: for according to formula S=S1+S2+……Sn+SrCalculate current voltageValue can course continuation mileage number, wherein, S be current voltage value can course continuation mileage number, S1For working asDistance travelled number between front magnitude of voltage and next magnitude of voltage, S2For next magnitude of voltage with underDistance travelled number between next magnitude of voltage, defining next magnitude of voltage is first voltageValue, next but one magnitude of voltage is second magnitude of voltage, SnBe (n-1) individual magnitude of voltage withDistance travelled number between n magnitude of voltage, SrBe n magnitude of voltage and minimum voltage value itBetween distance travelled number.
Same, described preset value is 1V. Described minimum voltage value equals nominal voltage value to be taken advantage ofWith 0.8. Described maximum voltage value equals nominal voltage value and is multiplied by 1.2.
The present invention also provides a kind of automobile batteries management system, comprises GPS unit, MCU, inspectionMeasurement unit, wireless communication unit, power subsystem and server, described GPS unit, detectionUnit, wireless communication unit and power subsystem are all connected with MCU, and described wireless communication unit alsoBe connected with server; Described GPS is for detection of the distance travelled number of automobile, and sends this and travelMileage number is to MCU; Described detecting unit is for detection of the ACC state of automobile, and sends this ACCState is to MCU; Described MCU is used for obtaining the magnitude of voltage of automobile batteries, and passes through radio communicationDistance travelled number, ACC state and magnitude of voltage are sent to server by unit; Described server is usedIn calculating continuing a journey of current voltage value according to distance travelled number, ACC state and magnitude of voltageRequired time when mileage number or automobile batteries rise to full electricity by current voltage.
In addition, can also comprise display screen, this display screen is connected with server. Server is to instituteThere is signal data to carry out, after analyzing and processing, showing by display screen, intuitively understand for userVehicle condition. Display screen also can replace with intelligent terminal, and user only need be by intelligent terminalCan understand in real time vehicle traveling information and charge information, intelligent terminal can be mobile phone, flat boardComputer etc.
Wireless communication unit is preferably GPRS unit.
To one skilled in the art, can be according to technical scheme described above and structureThink, make other various corresponding changes and deformation, and all these changes and deformationWithin all should belonging to the protection domain of the claims in the present invention.

Claims (10)

1. an automobile batteries management method, is characterized in that, comprises the steps:
Steps A: obtain the ACC state of automobile, detect the electricity of automobile batteries simultaneously by MCUThe variation tendency of pressure value and this magnitude of voltage, this ACC state comprises static and motion, this variationTrend comprises decline and rises;
When ACC state is static, and variation tendency for rise time, execution step B; Work as ACCState for motion, and variation tendency for decline time, execution step D;
Step B: obtain the current voltage value corresponding required time after a preset value that rises, whenA preset value postscript of front magnitude of voltage rising is next magnitude of voltage, passes through formula: Ai+1/B＝Ci+1Obtain the curve values of this next one magnitude of voltage, and obtain charging characteristic curve figure; Wherein, AiFor current voltage value, Ai+1For next magnitude of voltage, B is that current voltage value rises to next electricityPressure is worth corresponding required time, CiFor the curve values of this current magnitude of voltage, Ci+1For the next oneThe curve values of magnitude of voltage; Perform step afterwards C;
Step C: according to formula: T=Ai*Ci+Ai+1*Ci+1+……+Ar*1.2*CrCalculate automobileRequired time when battery rises to full electricity by current voltage, wherein, T is that current voltage rises toRequired time when full electricity, ArFor maximum voltage value, CrFor the curve values of maximum voltage value;
Step D: obtain the row between current voltage value and next magnitude of voltage by GPS moduleSail mileage number, next magnitude of voltage is the magnitude of voltage that current voltage value declines after a preset value,Perform step afterwards E;
Step e: according to formula S=S1+S2+……Sn+SrCalculate in the continuing a journey of current voltage valueNumber of passes, wherein, S be current voltage value can course continuation mileage number, S1For current voltage value with underDistance travelled number between a magnitude of voltage, S2For next magnitude of voltage and next but one magnitude of voltageBetween distance travelled number, defining next magnitude of voltage is first magnitude of voltage, next but one electricityPressure value is second magnitude of voltage, SnBe (n-1) individual magnitude of voltage and n magnitude of voltage itBetween distance travelled number, SrIt is the distance travelled number between n magnitude of voltage and minimum voltage value.
2. automobile batteries management method as claimed in claim 1, is characterized in that, described pre-If value is 1V.
3. automobile batteries management method as claimed in claim 1, is characterized in that, describedLow voltage value equals nominal voltage value and is multiplied by 0.8.
4. automobile batteries management method as claimed in claim 1, is characterized in that, describedHigh-voltage value equals nominal voltage value and is multiplied by 1.2.
5. an automobile batteries management system, is characterized in that, comprise GPS unit, MCU,Detecting unit, wireless communication unit, power subsystem and server, described GPS unit, inspectionMeasurement unit, wireless communication unit and power subsystem are all connected with MCU, described wireless communication unitAlso be connected with server; Described GPS is for detection of the distance travelled number of automobile, and sends this rowSail mileage number to MCU; Described detecting unit is for detection of the ACC state of automobile, and transmission shouldACC state is to MCU; Described MCU is used for obtaining the magnitude of voltage of automobile batteries, and by wirelessDistance travelled number, ACC state and magnitude of voltage are sent to server by communication unit unit; DescribedServer is for calculating current voltage value according to distance travelled number, ACC state and magnitude of voltageCan course continuation mileage number or automobile batteries required time while rising to full electricity by current voltage.
6. automobile batteries management system as claimed in claim 5, is characterized in that, also comprisesDisplay screen, this display screen is connected with server.
7. an automobile batteries management devices, is characterized in that, comprising:
State acquisition module: for obtaining the ACC state of automobile, simultaneously detect vapour by MCUThe magnitude of voltage of car battery and the variation tendency of this magnitude of voltage, this ACC state comprises static and fortuneMoving, this variation tendency comprises decline and rises;
When ACC state is static, and variation tendency for rise time, time of implementation acquisition module;When ACC state for motion, and variation tendency for decline time, carry out distance travelled count acquisition module;
Time-obtaining module: for obtaining the current voltage value corresponding institute after a preset value of risingTake time, a preset value postscript of current voltage value rising is next magnitude of voltage, passes through formula:Ai+1/B＝Ci+1Obtain the curve values of this next one magnitude of voltage, and obtain charging characteristic curve figure; ItsIn, AiFor current voltage value, Ai+1For next magnitude of voltage, B is that current voltage value rises to downA corresponding required time of magnitude of voltage, CiFor the curve values of this current magnitude of voltage, Ci+1ForThe curve values of next magnitude of voltage; Time of implementation computing module afterwards;
Time Calculation module: for according to formula: T=Ai*Ci+Ai+1*Ci+1+……+Ar*1.2*CrRequired time when calculating automobile batteries rises to full electricity by current voltage, wherein, T is current electricityPress the required time while rising to full electricity, ArFor maximum voltage value, CrFor the song of maximum voltage valueLine value;
Distance travelled is counted acquisition module: for obtain current voltage value and next by GPS moduleDistance travelled number between individual magnitude of voltage, next magnitude of voltage is that current voltage value declines one in advanceIf the magnitude of voltage after value, carries out mileage number computing module afterwards;
Mileage number computing module: for according to formula S=S1+S2+……Sn+SrCalculate current voltageValue can course continuation mileage number, wherein, S be current voltage value can course continuation mileage number, S1For working asDistance travelled number between front magnitude of voltage and next magnitude of voltage, S2For next magnitude of voltage with underDistance travelled number between next magnitude of voltage, defining next magnitude of voltage is first voltageValue, next but one magnitude of voltage is second magnitude of voltage, SnBe (n-1) individual magnitude of voltage withDistance travelled number between n magnitude of voltage, SrBe n magnitude of voltage and minimum voltage value itBetween distance travelled number.
8. automobile batteries management devices as claimed in claim 7, is characterized in that, described pre-If value is 1V.
9. automobile batteries management devices as claimed in claim 7, is characterized in that, describedLow voltage value equals nominal voltage value and is multiplied by 0.8.
10. automobile batteries management devices as claimed in claim 7, is characterized in that, described inMaximum voltage value equals nominal voltage value and is multiplied by 1.2.
CN201610169607.1A 2016-03-22 2016-03-22 A kind of automobile batteries management method, system and device Active CN105590036B (en)

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