CN104369674B - Battery service in vehicle traveling process - Google Patents

Battery service in vehicle traveling process Download PDF

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Publication number
CN104369674B
CN104369674B CN201310359322.0A CN201310359322A CN104369674B CN 104369674 B CN104369674 B CN 104369674B CN 201310359322 A CN201310359322 A CN 201310359322A CN 104369674 B CN104369674 B CN 104369674B
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China
Prior art keywords
devulcanization
accumulator
automobile
voltage
described accumulator
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CN201310359322.0A
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CN104369674A (en
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邓恒
孟艳
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Secondary Cells (AREA)
  • Control Of Charge By Means Of Generators (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention relates to automotive electronic technology, particularly in vehicle traveling process, accumulator being carried out the method for the such as attended operation of devulcanization process etc and realizing the automobile electronic controller of the method.According to one embodiment of the invention in vehicle traveling process, accumulator is performed the method that devulcanization processes comprise the following steps: to determine from previous described accumulator performed devulcanization process newly-increased distance travelled whether more than or equal to first threshold；If described distance travelled is more than described first threshold, then further determine that the charge condition currently whether allowed needed for using devulcanization to process according to control strategy set in advance；And if it is allowed, then perform devulcanization and process, otherwise, then until performing devulcanization when allowing again and processing.

Description

Battery service in vehicle traveling process
Technical field
The present invention relates to automotive electronic technology, particularly in vehicle traveling process to accumulator The method carrying out the such as attended operation of devulcanization process etc and the automobile electricity realizing the method Sub-controller.
Background technology
In the car, from power provide load electricity consumption, its energy all directly or indirectly from Heat energy in gasoline combustion.Fig. 1 is to show the schematic diagram of energy Flow in automobile, thick in figure Solid line represents electric energy stream, and fine line represents control signal stream and detection signal stream.As it is shown in figure 1, Under the control of automobile electronic controller (ECU) 110,1 of automobile engine 20 driving automobile Electromotor 130 generates electricity, and produced electric power can be supplied to accumulator 140, or is supplied to By electric loading 150；On the other hand, the electric energy of accumulator 140 storage can also be supplied to electricity consumption Load 150 and starter 160.
The accumulator of such as lead-acid accumulator etc can form lead sulfate crystallization when electric discharge.If The frequent undercharge of battery or overdischarge, negative plate will gradually form thick lead sulfate crystallization Body, this phenomenon is referred to as " sulfuration ".Sulfation makes the capacity of accumulator decline, and then Affect its service life.
Conventional devulcanization processing method includes that hydrotherapy, large current charge repairing method and pulse are humorous Wave resonance repairing method.Hydropathic processing procedure is, first changes the electrolyte of low concentration, then With small area analysis to accumulator repeated charge, heighten the concentration of electrolyte the most again to complete electric power storage Pond is repaired.The shortcoming of the method is time-consuming, laborious, and is not suitable for sealed cell.Big electricity Current charge repairing method uses high-density current to charge to produce the highest negative voltage on negative plate, So that thick lead sulfate crystallization produces negative resistance and punctures, but high-density current is likely to cause Battery dehydration and positive plate soften.Pulse harmonic resonance repairing method uses the impulse wave that forward position is precipitous Accumulator is charged to smash big lead sulfate crystal by shape, is made by control electric current density simultaneously Positive plate is not by excessive impact.The major defect of pulse harmonic resonance repairing method is that principle compares Complicated and need special equipment.
Therefore, need the devulcanization processing method of a kind of simple and low damaging.
Summary of the invention
It is an object of the invention to provide a kind of method that automobile storage battery is carried out devulcanization process, It has that realization is simple and the advantage such as damaging is low.
According to one embodiment of the present of invention, it is provided that a kind of in vehicle traveling process to electric power storage Pond performs the method that devulcanization processes, and described devulcanization processes by filling described accumulator Electricity realizes, and described method comprises the following steps:
Determine from previous to described accumulator perform devulcanization process newly-increased distance travelled be No more than or equal to first threshold；
If described distance travelled is more than described first threshold, then according to control plan set in advance Slightly further determine that the charge condition currently whether allowed needed for using devulcanization to process；And
Process if it is allowed, then perform devulcanization, otherwise, then until performing desulfuration again when allowing Change processes.
Preferably, in the above-mentioned methods, described charge condition includes the charging to described accumulator Voltage and/or charging current.
Preferably, in the above-mentioned methods, each devulcanization processes and includes at least one charging cycle Process, if the reduction degree that the internal resistance of described accumulator is before and after a charging cycle process is little The number of the charging cycle process performed during Second Threshold and this devulcanization process Amount less than the 3rd threshold value, then continues charging cycle process next time, otherwise, then terminates devulcanization Process.
Preferably, in the above-mentioned methods, each described charging cycle process comprises the following steps:
Apply the first voltage at described accumulator two ends and keep first period；
Within second period, make to put on the described first voltage liter at described accumulator two ends Up to second voltage；And
With described second voltage, described accumulator is charged within the 3rd period.
Preferably, in the above-mentioned methods, described second voltage determines according to following formula:
V 2 = α × R i 2 - β × V 1 + γ × T 3 1 - β
Here, V1And V2It is respectively described first and second voltages, RiFor the internal resistance of described accumulator, T3For the duration of described 3rd period, α, β and γ are the constant being determined by experiment.
Preferably, in the above-mentioned methods, described control strategy is set as, if automobile engine It is in low fuel oil efficient state, then stops the work of described automobile current generator or forbid that described automobile is sent out Motor charges to described accumulator.
Preferably, in the above-mentioned methods, described control strategy is set as, if described accumulator SOC value less than preset level, then be different from described devulcanization process needed for charging Described accumulator is charged by condition.
The present invention's it is also an object that provide a kind of automobile electronic controller, and it can be with letter The devulcanization single, the mode of low damage realizes accumulator processes.
Include according to the automobile electronic controller of one embodiment of the present of invention: input block, defeated Go out unit and the processor coupled with input block and output unit, wherein, described input block Be configured to from automobile sensor receive various detection signals, described output unit be configured to Automobile engine and electromotor send the instruction generated by described processor,
Wherein, described processor is configured to pass through in vehicle traveling process as follows Described accumulator is charged perform devulcanization process: determine if from previous to described storage Battery perform devulcanization has processed increase newly distance travelled be more than or equal to first threshold, and by The control strategy that described processor performs allows the charge condition needed for using devulcanization to process, then Execution devulcanization processes, otherwise, then until performing devulcanization when allowing again and processing.
From combine accompanying drawing described further below, it will make above and other objects of the present invention And advantage is more fully apparent from.
Accompanying drawing explanation
Fig. 1 is to show the schematic diagram of energy Flow in automobile.
Fig. 2 is the structured flowchart of the automobile electronic controller according to one embodiment of the invention.
Fig. 3 is holding accumulator in vehicle traveling process according to one embodiment of the invention The flow chart of the method that row devulcanization processes.
Fig. 4 is the flow chart of the devulcanization handling routine for embodiment illustrated in fig. 3.
Fig. 5 is the schematic diagram of the charging cycle process for devulcanization handling routine shown in Fig. 4.
Detailed description of the invention
Detailed description of the invention is described to illustrate the present invention below with reference to accompanying drawing.However it is necessary that reason Solving, these detailed description of the invention are merely exemplary, for spirit and the guarantor of the present invention Protect scope and unrestrictedly act on.
In this manual, " couple " word and should be understood to be included between two unit straight Connect transmission energy or the situation of signal, or indirectly transmit energy through one or more Unit the 3rd Or the situation of signal, and signal designated herein includes but not limited to electricity, light and the shape of magnetic The signal that formula exists.
" comprise " and the term of " including " etc represents and wants in description and right except having Asking beyond the unit and step having in book directly and clearly state, technical scheme is the most not Get rid of and there is other unit and the situation of step directly or clearly do not stated.Furthermore, such as The term of " first ", " second ", " the 3rd " and " the 4th " etc is not offered as unit Or numerical value only makees to distinguish each unit or number in the order of the aspects such as time, space, size Value is used.
It may also be noted that convenient for illustrating, in accompanying drawing, each unit might not be according to them Actual ratio is drawn, and the size of each unit and ratio not structure between them in accompanying drawing Become limiting the scope of the present invention.
According to one aspect of the present invention, the electric current density processed by reducing devulcanization still carries High devulcanization process frequency mode, can lead sulfate crystal not yet develop into thick dendrite arm it Before the most effectively removed, and low charging current decreases the damage to accumulator anode board Evil.Owing in vehicle traveling process, the normality of electromotor is generating state, therefore by devulcanization Reason is arranged in vehicle traveling process and carries out being feasible and being sufficient for the requirement of frequent. Be conducive to directly on automobile, accumulator being carried out devulcanization process it addition, reduce electric current density. It is another aspect of this invention to provide that use vehicle driving mileage as triggering sentencing of devulcanization operation One of according to.Although distance travelled and the discharge capacity of accumulator are not necessarily present strict linear pass System, but the two is the relation of high-positive correlation, the frequency therefore devulcanization processed and traveling Mileage be associated can't excessive sacrifice control accuracy, but for simplify control process be but big For favourable.
The specific embodiment of the present invention is described below by accompanying drawing.
Fig. 2 is the structured flowchart of the automobile electronic controller according to one embodiment of the invention.
As in figure 2 it is shown, include input block according to the automobile electronic controller 20 of the present embodiment 210, processor 220, dynamic RAM 230A, nonvolatile storage 230B and defeated Go out unit 240.
Input block 210 and the sensor being positioned at outside automobile electronic controller 20 and switch 311-31n couples.Preferably, input block 210 passes through with sensor and switch 311-31n Bus mode (such as CAN) connects.Sensor 311-31n such as includes but does not limits In engine speed and crankshaft position sensor, speedometer, air mass flow/admission pressure sensing Device, TPS, torque sensor and Hall element etc., they are automobile electricity Sub-controller 20 provides and is controlled required various feedback signals, such as vehicle driving mileage, The moment of torsion of throttle opening, electromotor and electromotor and tach signal, the output electric current of electromotor Deng.The various control commands that processor generates are sent to automobile engine by output unit 240 120 and electromotor 130.Preferably, it is right also by bus mode (such as CAN) 1 of automobile engine 20 and electromotor 130 are controlled.
Processor 220 and input block 210, dynamic RAM 230A, non-volatile memory Device 230B and output unit 240 couple, as the core cell of automobile electronic controller 20, It is according to the control program stored in nonvolatile storage 230B and normal data, single to input The signal that unit 210 receives from sensor and switch carries out pretreatment, analyzes, judges, generates phase The control signal answered, and control signal is sent to controlled plant (example through output unit 240 Such as the electromotor 120 in Fig. 2 and electromotor 130).
The operation principle of automobile electronic controller shown in Fig. 2 is below described.
When the processor 220 of automobile electronic controller 20 adds and electrically activates, it is deposited from non-volatile Control program is loaded in dynamic RAM 230A by reservoir 230B.Alternatively, Normal data can also be loaded.Here control program includes will be detailed below by figure for realization 3 and 4 meters that in vehicle traveling process, accumulator is performed the method that devulcanization processes described Calculation machine program.
Input block 210 periodically or non-periodically receives detection from sensor and switch 311-31n Signal and switching signal also send processor 220 to.In the present embodiment, input block 210 Periodically with speedometer, engine speed and crankshaft position sensor, TPS, Torque sensor communicates with Hall element etc. with receiving relevant detection signal, such as include but It is not limited to vehicle driving mileage, throttle opening detection signal, electromotor and the rotating speed of electromotor Signal etc. is detected with detection signal, the output generator current of moment of torsion.Processor 220 utilizes pre- If control strategy, according to detection signal control electromotor, electromotor, accumulator and automobile The running status of the parts such as electrical equipment.
It is worthy of note, control strategy here is broadly understood as controlling each portion on automobile Part (such as electromotor, electromotor, accumulator, air conditioning for automobiles and sound equipment etc.) running status One or more controls rule, and they can be grouped together use or exclusively make With.These examples controlling rule are control strategies based on fuel efficiency, according to this plan Slightly, if automobile engine is in low fuel oil efficient state, then automobile current generator is made to quit work Or auto Not Permitted electromotor charges to accumulator.Another one example is preferential based on automobile starting Control strategy, under this policy, if be detected that the SOC value of accumulator less than preset Level, then closing automobile electrical equipment or reduction car electrics load, and according to different SOC Value level uses different charge conditions to be charged accumulator.Generally, this with Guarantee that accumulator has to be enough to support the charging employing for the purpose of the capacitance of startup next time and desulfuration Change processes visibly different charge condition.
Fig. 3 is holding accumulator in vehicle traveling process according to one embodiment of the invention The flow chart of the method that row devulcanization processes.
For the sake of illustrating conveniently, it is assumed here that utilize the automobile electronic controller shown in Fig. 2 to realize The method of the present embodiment.It should be noted however that the principle of the present invention is not limited to specific The control device of type and structure.
As it is shown on figure 3, in step S310, the input block 210 in Fig. 2 is from speedometer Receive the data of vehicle driving mileage and be supplied to processor 220.
Subsequently entering step S320, processor 220 judges to perform to go to accumulator from the last time Whether vulcanizing treatment acts the vehicle driving mileage number newly increased more than or equal to a first threshold (such as 2000 kilometers).First threshold reflects the frequency that devulcanization processes, itself and electric power storage The characteristic in pond is correlated with, and can set according to actual application demand.The history of vehicle driving mileage Data are performing here for processor 220 in can being stored in nonvolatile storage 230B Judge to call during step.In this step, if it is determined that newly-increased distance travelled number is more than or equal to First threshold, then enter step S330, otherwise return step S310.
In step S330, processor 220 will determine that whether currently employed control strategy is permitted Permitted the charge condition needed for using devulcanization to process.Such as in aforementioned control based on fuel efficiency Under strategy, if automobile engine is in low fuel oil efficient state, then needed for devulcanization processes Charge condition cannot be met.And for example, under the control strategy preferential based on automobile starting, If the SOC value of accumulator is less than the level preset, then in order to make the electricity of accumulator recover To certain level, need the charge condition taking to be different from devulcanization process that accumulator is carried out Charging, therefore devulcanization processes and also cannot be immediately performed.In this step, if processor 220 judge to allow the charge condition needed for using devulcanization to process, then enter devulcanization and process example Journey, otherwise, then the charge condition needed for devulcanization processes performs desulfuration when being met again Change routine.
Fig. 4 is the flow chart of the devulcanization handling routine for embodiment illustrated in fig. 3.
As shown in Figure 4, in step S410, under the control of processor 220, automobile generating Machine performs a charging cycle process to accumulator.
Fig. 5 is the signal of a charging cycle process for devulcanization handling routine shown in Fig. 4 Figure.See Fig. 5, at the first period T1(such as 30 seconds to 1 minute), the two of accumulator End is applied in a first voltage V1(such as 12.5 volts).Subsequently enter the second period T2(example Such as 10 to 15 seconds), make the voltage putting on accumulator two ends from the first voltage V1It is increased to Second voltage V2(such as 14.5 volts to 16 volts).When voltage is increased to the second voltage V2Time I.e. enter the 3rd period T3(such as 3 to 5 minutes), within this period, electromotor is with second Accumulator is charged by voltage.
Second voltage V2Relevant to the internal resistance value of accumulator, it can determine according to following formula:
V 2 = α × R i 2 - β × V 1 + γ × T 3 1 - β - - - ( 1 )
Here, V1And V2It is respectively the first and second voltages, RiFor the internal resistance of accumulator, T3It is The duration of three periods, α, β and γ are the constant being determined by experiment.
Entering step S420 after completing step S410, processor 220 judges accumulator Whether internal resistance reduction degree before and after step S410 performs is more than or equal to Second Threshold (example Such as 10%), if greater than or equal to Second Threshold, then show that effect that devulcanization processes is relatively Good, therefore exit devulcanization handling routine and return step S310 of Fig. 3, otherwise, then Proceed to step S430.
In step S430, processor 220 judges performed filling during this devulcanization process Whether the quantity of electricity cyclic process is less than the 3rd threshold value (such as 3 times), if less than the 3rd threshold Value, then return step S410 is again to perform charging cycle process, otherwise, then terminates desulfuration Change handling routine and return step S310 of Fig. 3.
Owing to can be implemented this in a variety of manners under the spirit without departing substantially from basic feature of the present invention Invention, therefore present embodiment is illustrative and not restrictive, due to the model of the present invention Enclose and be defined by the independent claims rather than defined by description, therefore fall into claim All changes in border and boundary, or this claim border and the equivalent of boundary thus Forgiven by claim.

Claims (13)

1. in vehicle traveling process, accumulator being performed the method that devulcanization processes, described devulcanization processes by realizing the charging of described accumulator, it is characterised in that comprise the following steps:
Determine from previous described accumulator performed devulcanization process newly-increased distance travelled whether more than or equal to first threshold；
If described distance travelled is more than described first threshold, then further determine that the charge condition currently whether allowed needed for using devulcanization to process according to control strategy set in advance；And
Process if it is allowed, then perform devulcanization, otherwise, then until performing devulcanization when allowing again and processing.
The most described charge condition includes the charging voltage to described accumulator and/or charging current.
3. the method for claim 1, wherein, devulcanization processes and includes at least one charging cycle process every time, if the quantity of the charging cycle process that the reduction degree that the internal resistance of described accumulator is before and after a charging cycle process has performed during processing less than Second Threshold and this devulcanization is less than the 3rd threshold value, then continue charging cycle process next time, otherwise, then terminate devulcanization to process.
4. method as claimed in claim 3, wherein, each described charging cycle process comprises the following steps:
Apply the first voltage at described accumulator two ends and keep first period；
Described first voltage putting on described accumulator two ends is made to be increased to the second voltage within second period；And
With described second voltage, described accumulator is charged within the 3rd period.
5. method as claimed in claim 4, wherein, described second voltage determines according to following formula:
Here, V1And V2It is respectively described first and second voltages, RiFor the internal resistance of described accumulator, T3For the duration of described 3rd period, α, β and γ are the constant being determined by experiment.
The most described control strategy is set as, if automobile engine is in low fuel oil efficient state, then stops automobile current generator work or forbids that described automobile current generator charges to described accumulator.
The most described control strategy is set as, if the SOC value of described accumulator is less than the level preset, then described accumulator is charged by the charge condition needed for being different from described devulcanization process.
8. an automobile electronic controller, including: input block, output unit and the processor coupled with input block and output unit, wherein, described input block is configured to receive various detection signals from automobile sensor, described output unit is configured to send, to automobile engine and electromotor, the instruction generated by described processor
Wherein, described processor is configured to process by being charged performing devulcanization to accumulator in vehicle traveling process as follows: determine if from previous described accumulator performed devulcanization process newly-increased distance travelled more than or equal to first threshold, and the control strategy performed by described processor allows the charge condition needed for using devulcanization to process, then perform devulcanization to process, otherwise, then until performing devulcanization when allowing again and processing.
9. automobile electronic controller as claimed in claim 8, wherein, devulcanization processes and includes at least one charging cycle process every time, if the quantity of the charging cycle process that the reduction degree that the internal resistance of described accumulator is before and after a charging cycle process has performed during processing less than Second Threshold and this devulcanization is less than the 3rd threshold value, then continue charging cycle process next time, otherwise, then terminate devulcanization to process.
10. automobile electronic controller as claimed in claim 9, wherein, described processor is configured to complete each described charging cycle process as follows:
Described accumulator two ends are made to be applied in the first voltage and keep first period；
Described first voltage putting on described accumulator two ends is made to be increased to the second voltage within second period；And
With described second voltage, described accumulator is charged within the 3rd period.
11. automobile electronic controllers as claimed in claim 10, wherein, described second voltage determines according to following formula:
Here, V1And V2It is respectively described first and second voltages, RiFor the internal resistance of described accumulator, T3For the duration of described 3rd period, α, β and γ are the constant being determined by experiment.
12. automobile electronic controllers as claimed in claim 8, wherein, described control strategy is set as, if automobile engine is in low fuel oil efficient state, then stops the work of described automobile current generator or forbids that described automobile current generator charges to described accumulator.
13. automobile electronic controllers as claimed in claim 8, wherein, described control strategy is set as, if the SOC value of described accumulator is less than the level preset, then utilize described automobile current generator, with the electric current and/or voltage being different from described devulcanization process, described accumulator is charged.
CN201310359322.0A 2013-08-16 2013-08-16 Battery service in vehicle traveling process Expired - Fee Related CN104369674B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN101346849A (en) * 2005-12-28 2009-01-14 森幸信 Lead-free battery and vehicle system using the same
CN102983370A (en) * 2011-09-05 2013-03-20 李静 Repair device for lead storage battery

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Publication number Priority date Publication date Assignee Title
JP5154174B2 (en) * 2007-09-06 2013-02-27 本田技研工業株式会社 Fuel cell system and operation method thereof
JP4689768B2 (en) * 2009-05-28 2011-05-25 パナソニック株式会社 Lead storage battery charge control method, charge control circuit, and power supply device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101346849A (en) * 2005-12-28 2009-01-14 森幸信 Lead-free battery and vehicle system using the same
CN201051675Y (en) * 2007-02-15 2008-04-23 青岛澳柯玛电动科技有限公司 Balance charging maintenance system for electric vehicle battery
CN102983370A (en) * 2011-09-05 2013-03-20 李静 Repair device for lead storage battery

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