CN106249160A - Accumulator of electric car state evaluating method - Google Patents
Accumulator of electric car state evaluating method Download PDFInfo
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- CN106249160A CN106249160A CN201610632895.XA CN201610632895A CN106249160A CN 106249160 A CN106249160 A CN 106249160A CN 201610632895 A CN201610632895 A CN 201610632895A CN 106249160 A CN106249160 A CN 106249160A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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Abstract
The invention discloses a kind of accumulator of electric car state evaluating method, comprise the steps: to obtain contact potential series, coarse processes, computation complexity, the normalized of complexity, and battery condition is assessed；The present invention has and can gather the service data of accumulator while electric motor car runs and be analyzed, and is estimated battery condition and predicts, improve the feature of the safety and reliability that accumulator is run.
Description
Technical field
The invention belongs to accumulator of electric car technical field, especially relate to a kind of electronic vapour towards charging pile energy storage
Car battery condition appraisal procedure.
Background technology
Along with people's living standard and the requirement to living environment are more and more higher, electric automobile is considered as environmental protection and energy saving
Trip mode.The a series of preferential measures of release in all parts of the country widely popularize electric automobile, if Shanghai City is to buy electric automobile
User provides Shanghai licence plate, and general-utility car needs the number of shaking extraction, and expense is high.Electric automobile progresses into the daily life of people
Living and the popular visual field, the safety and reliability of electric automobile becomes problem of concern.
Accumulator battery, as the key core parts of electric automobile, is also the power source of electric automobile, battery performance
Quality be directly connected to the reliability and security of electric automobile, be also that electric automobile is universal and the key skill of industrialization
One of art.
In battery operation, how to gather corresponding status data, and be analyzed judging the state of accumulator,
And then make assessment and predict it is one of key issue urgently to be resolved hurrily.
Summary of the invention
The goal of the invention of the present invention is to overcome battery-operated circumstance complication in prior art, and accumulator diagnosis is safeguarded
The deficiency of difficulty, it is provided that a kind of accumulator of electric car state evaluating method towards charging pile energy storage.
To achieve these goals, the present invention is by the following technical solutions:
A kind of accumulator of electric car state evaluating method, including the accumulator being located on electric automobile, with storage battery
The voltage sensor connected, processor and alarm, processor electrically connects with voltage sensor and alarm respectively；Including as follows
Step:
(1-1) voltage signal of voltage sensor senses accumulator, processor per interval, voltage signal was adopted by T
Sample, is arranged in order the sampled value obtained, and obtains contact potential series PV, PV={ v1, v2..., vm}；
(1-2) processor is to PVCarry out coarse process
Utilize formulaCalculate PVMeansigma methods
For PVIn sampled value vi, whenTime, i ∈ 1,2 ..., m, make vi=1；WhenTime, make vi=0；
Obtain new sequence S after coarse codingV={ V1, V2..., Vm}；
(1-3) processor sequence of calculation SV={ V1, V2..., VmComplexity
Set complexity c (m)=1 of accumulator, sequence number l=1 of sampled value；
(1-3-1) R={V1, V2... Vl, Q={Vl+1, RQE={V1, V2... Vl}；
If Q is the substring of RQE, then R is constant, makes Q={Vl+1, Vl+2, RQE={V1, V2..., Vl+1}；
If Q is not the substring of RQE, then make R=RQ, Q={Vl+3, make the value of c (m) increase by 1, l increases by 1；
Wherein, R, Q and RQE are sequence, and RQ is the sequence rearranged by R and Q left-to-right, and RQE is that RQ removes finally
The sequence obtained after one sampled value；
If (1-3-2) c (m) ＜ m returns step (1-3-1)；
Otherwise, step (1-4) is proceeded to；
(1-4) c (m) is normalized by processor
Set
Utilize formulaCalculate normalization complexity cLZ(m)；
(1-5) battery condition is estimated by processor
Work as cLZV ()=0, processor is made accumulator and is in the judgement of complete stability state；
As 0 ＜ cLZM, during ()≤d, processor is made accumulator and is in the judgement of normal condition, d is secure threshold；
Work as cLZM, during () ＞ d, the judgement that battery condition is in the hole made by processor, processor controls alarm
Report to the police；
Work as cLZWhen () trends towards 1 m, processor is made accumulator and is in entirely without rule state, ability of thoroughly losing the job
Judgement, processor control alarm equipment alarm.
The present invention can gather the service data of accumulator while electric motor car runs, and is analyzed, to accumulator
State is estimated, predicts and reports to the police, and improves the safety and reliability that accumulator is run.
As the replacement scheme of such scheme, voltage sensor is replaced with current sensor；
(2-1) current signal of current sensor detection accumulator, processor per interval, current signal was adopted by T
Sample, is arranged in order the sampled value obtained, obtains current sequence PA, PA={ a1, a2..., an}；
(2-2) processor is to PACarry out coarse process
Utilize formulaCalculate PAMeansigma methods
For PAIn sampled value aj, whenTime, j ∈ 1,2 ..., n, make aj=1；WhenTime, make aj=
0；Obtain new sequence S after coarse codingA={ A1, A2..., An}；
(2-3) processor sequence of calculation SA={ A1, A2..., AnComplexity, wherein, the complexity of accumulator is c
(n)；
(1-4) c (n) is normalized by processor；
(1-5) battery condition is estimated by processor.
As the replacement scheme of such scheme, voltage sensor is replaced with temperature sensor, temperature sensor and electric power storage
Pond contacts；
(3-1) temperature signal of temperature sensor detection accumulator, processor per interval, temperature signal was adopted by T
Sample, is arranged in order the sampled value obtained, and obtains temperature sequence PT, PT={ t1, t2..., tk}；
(3-2) processor is to PTCarry out coarse process
Utilize formulaCalculate PTMeansigma methods
For PTIn sampled value tw, whenTime, w ∈ 1,2 ..., k, make tw=1；WhenTime, make tw=0；
Obtain new sequence S after coarse codingT={ T1, T2..., Tk}；
(3-3) processor sequence of calculation ST={ T1, T2..., TkComplexity, wherein, the complexity of accumulator is c
(k)；
(3-4) c (k) is normalized by processor；
(3-5) battery condition is estimated by processor.
As preferably, T is 4 minutes to 6 minutes.
Therefore, there is advantages that and can gather the operation number of accumulator while electric motor car runs
According to, and be analyzed, battery condition it is estimated and predicts, improve the safety and reliability that accumulator is run.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart of the present invention.
Detailed description of the invention
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
Embodiment 1
Embodiment as shown in Figure 1 is a kind of accumulator of electric car state evaluating method, including being located on electric automobile
Accumulator, the voltage sensor being connected with storage battery, processor and alarm, processor respectively with voltage sensor and report
Alert device electrical connection；Comprise the steps:
Step 100, it is thus achieved that contact potential series
The voltage signal of voltage sensor senses accumulator, voltage signal was sampled by processor every 5 minutes, incited somebody to action
To sampled value be arranged in order, obtain contact potential series PV, PV={ v1, v2..., vm}；
Step 200, coarse processes
Processor is to PVCarry out coarse process
Utilize formulaCalculate PVMeansigma methods
For PVIn sampled value vi, whenTime, i ∈ 1,2 ..., m, make vi=1；WhenTime, make vi=0；
Obtain new sequence S after coarse codingV={ V1, V2..., Vm}；
Step 300, computation complexity
Processor sequence of calculation SV={ V1, V2..., VmComplexity
Set complexity c (m)=1 of accumulator, sequence number l=1 of sampled value；
Step 310, R={V1, V2... Vl, Q={Vl+1, RQE={V1, V2... Vl}；
If Q is the substring of RQE, then R is constant, makes Q={Vl+1, Vl+2, RQE={V1, V2..., Vl+1}；
If Q is not the substring of RQE, then make R=RQ, Q={Vl+3, make the value of c (m) increase by 1, l increases by 1；Wherein, R, Q and
RQE is sequence, and RQ is the sequence rearranged by R and Q left-to-right, and RQE is to obtain after RQ removes last sampled value
Sequence；
Step 320, if c (m) ＜ m returns step 310；
Otherwise, step 400 is proceeded to；
Step 400, the normalized of complexity
C (m) is normalized by processor
Set
Utilize formulaCalculate normalization complexity cLZ(m)；
Step 500, battery condition is assessed
Battery condition is estimated by processor
Work as cLZV ()=0, processor is made accumulator and is in the judgement of complete stability state；
As 0 ＜ cLZM, during ()≤d, processor is made accumulator and is in the judgement of normal condition, d is secure threshold；
Work as cLZM, during () ＞ d, the judgement that battery condition is in the hole made by processor, processor controls alarm
Report to the police；
Work as cLZWhen () trends towards 1 m, processor is made accumulator and is in entirely without rule state, ability of thoroughly losing the job
Judgement, processor control alarm equipment alarm.
Embodiment 2
A kind of accumulator of electric car state evaluating method, including the accumulator being located on electric automobile, with storage battery
The current sensor connected, processor and alarm, processor electrically connects with current sensor and alarm respectively；Including as follows
Step:
(2-1) current signal of current sensor detection accumulator, current signal was adopted by processor every 5 minutes
Sample, is arranged in order the sampled value obtained, obtains current sequence PA, PA={ a1, a2..., an}；
(2-2) processor is to PACarry out coarse process
Utilize formulaCalculate PAMeansigma methods
For PAIn sampled value aj, whenTime, j ∈ 1,2 ..., n, make aj=1；WhenTime, make aj=
0；Obtain new sequence S after coarse codingA={ A1, A2..., An}；
(2-3) processor sequence of calculation SA={ A1, A2..., AnComplexity
Set complexity c (n)=1 of accumulator, sequence number l=1 of sampled value；
(2-3-1) R={A1, A2... Al, Q={Al+1, RQE={A1, A2... Al}；
If Q is the substring of RQE, then R is constant, makes Q={Al+1, Al+2, RQE={A1, A2..., Al+1}；
If Q is not the substring of RQE, then make R=RQ, Q={Al+3, make the value of c (n) increase by 1, l increases by 1；Wherein, R, Q and
RQE is sequence, and RQ is the sequence rearranged by R and Q left-to-right, and RQE is to obtain after RQ removes last sampled value
Sequence；
If (2-3-2) c (n) ＜ n returns step (2-3-1)；
Otherwise, step (2-4) is proceeded to；
(2-4) normalized of complexity
C (n) is normalized by processor
Set
Utilize formulaCalculate normalization complexity cLZ(n)；
Step 500, battery condition is assessed
Battery condition is estimated by processor
Work as cLZN ()=0, processor is made accumulator and is in the judgement of complete stability state；
As 0 ＜ cLZN, during ()≤d, processor is made accumulator and is in the judgement of normal condition, d is secure threshold；
Work as cLZN, during () ＞ d, the judgement that battery condition is in the hole made by processor, processor controls alarm
Report to the police；
Work as cLZWhen () trends towards 1 n, processor is made accumulator and is in entirely without rule state, ability of thoroughly losing the job
Judgement, processor control alarm equipment alarm.
Embodiment 3
A kind of accumulator of electric car state evaluating method, including the accumulator being located on electric automobile, with storage battery
The temperature sensor connected, processor and alarm, processor electrically connects with temperature sensor and alarm respectively；Including as follows
Step:
(3-1) temperature signal of temperature sensor detection accumulator, temperature signal was adopted by processor every 5 minutes
Sample, is arranged in order the sampled value obtained, and obtains temperature sequence PT, PT={ t1, t2..., tk}；
(3-2) processor is to PTCarry out coarse process
Utilize formulaCalculate PTMeansigma methods
For PTIn sampled value tw, whenTime, w ∈ 1,2 ..., k, make tw=1；WhenTime, make tw=0；
Obtain new sequence S after coarse codingT={ T1, T2..., Tk}；
(3-3) processor sequence of calculation ST={ T1, T2..., TkComplexity
Set complexity c (k)=1 of accumulator, sequence number l=1 of sampled value；
(3-3-1) R={T1, T2... Tl, Q={Tl+1, RQE={T1, T2... Tl}；
If Q is the substring of RQE, then R is constant, makes Q={Tl+1, Tl+2, RQE={T1, T2..., Tl+1}；
If Q is not the substring of RQE, then make R=RQ, Q={Tl+3, make the value of c (k) increase by 1, l increases by 1；Wherein, R, Q and
RQE is sequence, and RQ is the sequence rearranged by R and Q left-to-right, and RQE is to obtain after RQ removes last sampled value
Sequence；
If (3-3-2) c (k) ＜ k returns step (3-3-1)；
Otherwise, step (3-4) is proceeded to；
(3-4) normalized of complexity
C (k) is normalized by processor
Set
Utilize formulaCalculate normalization complexity cLZ(k)；
Step 500, battery condition is assessed
Battery condition is estimated by processor
Work as cLZK ()=0, processor is made accumulator and is in the judgement of complete stability state；
As 0 ＜ cLZK, during ()≤d, processor is made accumulator and is in the judgement of normal condition, d is secure threshold, d=3；
Work as cLZK, during () ＞ d, the judgement that battery condition is in the hole made by processor, processor controls alarm
Report to the police；
Work as cLZWhen () trends towards 1 k, processor is made accumulator and is in entirely without rule state, ability of thoroughly losing the job
Judgement, processor control alarm equipment alarm.
In actual applications, temperature, the state of voltage and current Sensor monitoring accumulator, it is contemplated that in-vehicle processor is deposited
Storage finite capacity, record data can take interval sampling, as at interval of 5 minutes records temperature, voltage and current data.Treat down
During secondary charging, connecting charging pile by charging inlet and be charged, data-interface carries out data transmission, meanwhile, and vehicle-mounted place
The internal memory of reason device formats and empties.
GPRS module can also be used to be transmitted, and while vehicle connection charging pile is charged, trigger data is transmitted
Switch, processor transfers data to charging pile by GPRS module, charging pile carry out data process, provides accumulator diagnosis
With prediction address.
Charging pile should possess man-machine interactive system, and diagnosis and prediction report can feed back to use by human-computer interaction interface
Family, facilitates user's very first time to understand battery condition.First man-machine interactive system, when feeding back diagnosis and prediction report, need to be entered
Row authentication, can take such as fingerprint recognition, the measures such as checking, Quick Response Code identification of swiping the card.
Charging pile can set up history data store storehouse and maintenance strategy storehouse.Condition intelligent for accumulator pushes corresponding
Maintenance scheme, to user, provides directiveness maintenance strategy.
Charging pile and charging station majority use size expansion, several to dozens of.Data as diagnosis and prediction
Processing center can concentrate construction, simultaneously serves some charging stations and a number of charging pile, it is to avoid energy waste, the most just
Can realize sharing in unified management, the historical data of data processing centre and empirical data, improve battery condition diagnosis and
The accuracy of prediction.
Should be understood that the present embodiment is merely to illustrate the present invention rather than limits the scope of the present invention.In addition, it is to be understood that
After having read the content that the present invention lectures, the present invention can be made various changes or modifications by those skilled in the art, these etc.
Valency form falls within the application appended claims limited range equally.
Claims (4)
1. an accumulator of electric car state evaluating method, is characterized in that, including the accumulator being located on electric automobile, with storage
The voltage sensor of battery electrical connection, processor and alarm, processor electrically connects with voltage sensor and alarm respectively；Bag
Include following steps:
(1-1) voltage signal of voltage sensor senses accumulator, processor per interval, voltage signal was sampled by T, will
The sampled value obtained is arranged in order, and obtains contact potential series PV, PV={ v1, v2..., vm}；
(1-2) processor is to PVCarry out coarse process
Utilize formulaCalculate PVMeansigma methods
For PVIn sampled value vi, whenTime, i ∈ 1,2 ..., m, make vi=1；WhenTime, make vi=0；Obtain
New sequence S after coarse codingV={ V1, V2..., Vm}；
(1-3) processor sequence of calculation SV={ V1, V2..., VmComplexity
Set complexity c (m)=1 of accumulator, sequence number l=1 of sampled value；
(1-3-1) R={V1, V2... Vl, Q={Vl+1, RQE={V1, V2... Vl}；
If Q is the substring of RQE, then R is constant, makes Q={Vl+1, Vl+2, RQE={V1, V2..., Vl+1}；
If Q is not the substring of RQE, then make R=RQ, Q={Vl+3, make the value of c (m) increase by 1, l increases by 1；
Wherein, R, Q and RQE are sequence, and RQ is the sequence rearranged by R and Q left-to-right, and RQE is that RQ removes last
The sequence obtained after sampled value；
If (1-3-2) c (m) ＜ m returns step (1-3-1)；
Otherwise, step (1-4) is proceeded to；
(1-4) c (m) is normalized by processor
Set
Utilize formulaCalculate normalization complexity cLZ(m)；
(1-5) battery condition is estimated by processor
Work as cLZV ()=0, processor is made accumulator and is in the judgement of complete stability state；
As 0 ＜ cLZM, during ()≤d, processor is made accumulator and is in the judgement of normal condition, d is secure threshold；
Work as cLZM, during () ＞ d, the judgement that battery condition is in the hole made by processor, processor controls alarm equipment alarm；
Work as cLZWhen () trends towards 1 m, processor is made accumulator and is in entirely without rule state, sentencing of ability of thoroughly losing the job
Disconnected, processor controls alarm equipment alarm.
Accumulator of electric car state evaluating method the most according to claim 1, is characterized in that, is replaced by voltage sensor
For current sensor；
(2-1) current signal of current sensor detection accumulator, processor per interval, current signal was sampled by T, will
The sampled value obtained is arranged in order, and obtains current sequence PA, PA={ a1, a2..., an}；
(2-2) processor is to PACarry out coarse process
Utilize formulaCalculate PAMeansigma methods
For PAIn sampled value aj, whenTime, j ∈ 1,2 ..., n, make aj=1；WhenTime, make aj=0；?
New sequence S after encoding to coarseA={ A1, A2..., An}；
(2-3) processor sequence of calculation SA={ A1, A2..., AnComplexity, wherein, the complexity of accumulator is c (n)；
(1-4) c (n) is normalized by processor；
(1-5) battery condition is estimated by processor.
Accumulator of electric car state evaluating method the most according to claim 1, is characterized in that, is replaced by voltage sensor
For temperature sensor, temperature sensor contacts with accumulator；
(3-1) temperature signal of temperature sensor detection accumulator, processor per interval, temperature signal was sampled by T, will
The sampled value obtained is arranged in order, and obtains temperature sequence PT, PT={ t1, t2..., tk}；
(3-2) processor is to PTCarry out coarse process
Utilize formulaCalculate PTMeansigma methods
For PTIn sampled value tw, whenTime, w ∈ 1,2 ..., k, make tw=1；WhenTime, make tw=0；Obtain
New sequence S after coarse codingT={ T1, T2..., Tk}；
(3-3) processor sequence of calculation ST={ T1, T2..., TkComplexity, wherein, the complexity of accumulator is c (k)；
(3-4) c (k) is normalized by processor；
(3-5) battery condition is estimated by processor.
4., according to the accumulator of electric car state evaluating method described in claim 1 or 2 or 3, it is characterized in that, T be 4 minutes extremely
6 minutes.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114771440A (en) * | 2022-06-17 | 2022-07-22 | 深圳顶匠科技有限公司 | Vehicle starting signal generation method and device applied to storage battery state detection |
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| CN102680901A (en) * | 2012-05-09 | 2012-09-19 | 北京宏达天恒科技有限公司 | Electronic energy detection system and method |
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2016
- 2016-08-02 CN CN201610632895.XA patent/CN106249160A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680901A (en) * | 2012-05-09 | 2012-09-19 | 北京宏达天恒科技有限公司 | Electronic energy detection system and method |
Non-Patent Citations (1)
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| CN114771440A (en) * | 2022-06-17 | 2022-07-22 | 深圳顶匠科技有限公司 | Vehicle starting signal generation method and device applied to storage battery state detection |
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Application publication date: 20161221 |