CN109239613A - A kind of batteries of electric automobile capacity check method and device - Google Patents
A kind of batteries of electric automobile capacity check method and device Download PDFInfo
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- CN109239613A CN109239613A CN201811071112.0A CN201811071112A CN109239613A CN 109239613 A CN109239613 A CN 109239613A CN 201811071112 A CN201811071112 A CN 201811071112A CN 109239613 A CN109239613 A CN 109239613A
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Abstract
The present invention provides a kind of batteries of electric automobile capacity check method and device, is related to battery detecting field.This method comprises: when electric car is connect and when charging batteries of electric automobile into electric car with charging pile, detection batteries of electric automobile from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, wherein, state-of-charge is the ratio between the remaining capacity of batteries of electric automobile and the battery capacity of batteries of electric automobile, based on the quantity of electric charge detected, first state-of-charge and the second state-of-charge, certain amount of charge needed for determining the every charging particular percentile electricity of batteries of electric automobile, based on certain amount of charge, determine the fully charged required total amount of electric charge of batteries of electric automobile, and the total amount of electric charge is determined as battery capacity.The present invention solves the problems, such as that the time loss of detection battery capacity is larger, effectively increases the detection efficiency of battery capacity.
Description
Technical field
The present invention relates to battery detecting fields, in particular to a kind of batteries of electric automobile capacity check method and dress
It sets.
Background technique
With flourishing for new-energy automobile, the use of electric car gradually increases.In electric car, battery system
It is particularly important for electric car as the power supply device of its power, the especially capacity of the battery of electric car, very big
The course continuation mileage of the electric car is determined in degree.But battery capacity when batteries of electric automobile factory is less than electric car
The case where battery capacity of battery mark, happens occasionally, and battery capacity declines electric vehicle automobile batteries in use for some time
The case where subtracting can not also quantify.Detection accordingly, with respect to battery capacity is increasingly taken seriously.
In the prior art, it when being detected to battery capacity, is generally used full be full of and puts formula detection, i.e., fill battery
Then electricity is discharged to minimum voltage to highest blanking voltage with current constant mode, and determined currently according to the electricity in discharge process
The total capacity of battery.However this mode can only be carried out in laboratory, the battery after entrucking, which can only remove, is put into laboratory's survey
Examination, detection efficiency is low, cannot achieve quick, batch detection, and testing cost is high.
Summary of the invention
It is an object of the present invention in view of the deficiency of the prior art, provide a kind of batteries of electric automobile capacity inspection
Method and device is surveyed, the time loss to solve the problems, such as detection battery capacity is larger, effectively increases the detection of battery capacity
Efficiency.
To achieve the above object, technical solution used in the embodiment of the present invention is as follows:
In a first aspect, the embodiment of the invention provides a kind of batteries of electric automobile capacity check methods, which comprises
When electric car is connect and when charging batteries of electric automobile into the electric car with charging pile, the electric car is detected
Battery from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, wherein state-of-charge be the electric car
Ratio between the remaining capacity of battery and the battery capacity of the batteries of electric automobile；
Based on the quantity of electric charge detected, first state-of-charge and second state-of-charge, the electronic vapour is determined
Certain amount of charge needed for the every charging particular percentile electricity of vehicle battery；
Based on the certain amount of charge, the fully charged required total amount of electric charge of the batteries of electric automobile is determined, and will be described
Total amount of electric charge is determined as the battery capacity.
Preferably, needed for the detection batteries of electric automobile charges to the second state-of-charge from the first state-of-charge
The quantity of electric charge before, the method also includes:
Obtain current state-of-charge；
Based on the current state-of-charge, first state-of-charge is determined；
First state-of-charge is increased into the first preset value, and using the numerical value after increase as the second state-of-charge.
Preferably, described based on the current state-of-charge, determine first state-of-charge, comprising:
The current state-of-charge is determined as first state-of-charge；Or,
The current state-of-charge is increased into the second preset value, and using the numerical value after increase as the described first charged shape
State.
Preferably, the detection batteries of electric automobile charges to needed for the second state-of-charge from the first state-of-charge
The quantity of electric charge, comprising:
It obtains the batteries of electric automobile and is charged to needed for second state-of-charge from first state-of-charge and filled
Electric duration and the batteries of electric automobile from first state-of-charge charge to second state-of-charge during electricity
Stream；
By the electric current to the integrated value of the charging duration, it is charged from described first to be determined as the batteries of electric automobile
The quantity of electric charge needed for state charges to second state-of-charge.
Preferably, the particular percentile is 1 percent, described to be based on the quantity of electric charge detected, the first charged shape
State and second state-of-charge, specific charge needed for determining the every charging particular percentile electricity of the batteries of electric automobile
Amount, comprising:
Determine the difference of second state-of-charge Yu first state-of-charge；
By the ratio of the quantity of electric charge detected and the difference, it is determined as the certain amount of charge.
Second aspect, the embodiment of the invention also provides a kind of batteries of electric automobile capacity checking apparatus, described device packets
It includes:
Detection module, for being connect with charging pile and batteries of electric automobile into the electric car fills when electric car
When electric, detect the batteries of electric automobile from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, wherein lotus
Electricity condition is the ratio between the remaining capacity of the batteries of electric automobile and the battery capacity of the batteries of electric automobile；
First determining module, for being based on the quantity of electric charge detected, first state-of-charge and the second charged shape
State, certain amount of charge needed for determining the every charging particular percentile electricity of the batteries of electric automobile；
Second determining module determines that the batteries of electric automobile is fully charged required for being based on the certain amount of charge
Total amount of electric charge, and the total amount of electric charge is determined as the battery capacity.
Preferably, described device further include:
Module is obtained, for obtaining current state-of-charge；
Third determining module, for determining first state-of-charge based on the current state-of-charge；
Increase module, for will first state-of-charge the first preset value of increase, and using the numerical value after increase as the
Two state-of-charges.
Preferably, the third determining module includes:
First determines submodule, for the current state-of-charge to be determined as first state-of-charge；Or,
Second determines submodule, for the current state-of-charge to be increased the second preset value, and by the number after increase
Value is used as first state-of-charge.
Preferably, the detection module includes:
First acquisition submodule charges to described from first state-of-charge for obtaining the batteries of electric automobile
Charging duration needed for two state-of-charges and the batteries of electric automobile charge to described second from first state-of-charge
Electric current during state-of-charge；
Third determines submodule, for the integrated value by the electric current to the charging duration, is determined as the electronic vapour
Vehicle battery from first state-of-charge charge to second state-of-charge needed for the quantity of electric charge.
Preferably, first determining module includes:
4th determines submodule, for determining the difference of second state-of-charge Yu first state-of-charge；
5th determines submodule, for being determined as the specific electricity for the ratio of the quantity of electric charge detected and the difference
Lotus amount.
The beneficial effects of the present invention are:
In embodiments of the present invention, due to being connect with charging pile and electric car into electric car is electric when electric car
When pond is charged, the quantity of electric charge needed for batteries of electric automobile often fills particular percentile electricity is identical, that is to say, batteries of electric automobile fills
The full particular percentile electricity that can be equivalent to the corresponding number that charges to a hundred percent electricity, therefore electronic vapour can be can detecte
Vehicle battery from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, be based on the quantity of electric charge detected, the first lotus
Electricity condition and the second state-of-charge, certain amount of charge needed for determining the every charging particular percentile electricity of batteries of electric automobile, base
In the certain amount of charge, total amount of electric charge needed for determining batteries of electric automobile fully charged (i.e. a hundred percent electricity), and by institute
It states total amount of electric charge and is determined as battery capacity.It that is to say, variable quantity and institute using state-of-charge in electric car charging process
The quantity of electric charge of charging determines the battery capacity of electric car, due to do not need to carry out batteries of electric automobile complete charging and
Electric discharge does not need to dismantle batteries of electric automobile yet, and detection efficiency both greatly improved, will not cause energy waste,
It can also realize to the detection after batteries of electric automobile factory, save cost.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of schematic diagram of a scenario for detecting batteries of electric automobile capacity provided by the invention；
Fig. 2 is a kind of schematic diagram of battery capacity detecting instrument provided by the invention；
Fig. 3 is a kind of structural schematic diagram of transfer box provided by the invention；
Fig. 4 is a kind of batteries of electric automobile capacity check method flow schematic diagram provided by the invention；
Fig. 5 is another batteries of electric automobile capacity check method flow schematic diagram provided by the invention；
Fig. 6 is a kind of the functional block diagram of batteries of electric automobile capacity checking apparatus provided by the invention；
Fig. 7 is the functional block diagram of another batteries of electric automobile capacity checking apparatus provided by the invention.
Icon: 101- battery capacity detecting instrument；1011- transfer box；The first charging interface of 10111-；10112- charging
Rifle；10113- current sensor；The first communication interface of 10114-；The second communication interface of 10115-；1012- data collection and analysis
Terminal；1013- display terminal；102- electric car；The second charging interface of 1021-；103- charging pile.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Fig. 1 is please referred to, a kind of schematic diagram of a scenario for detecting batteries of electric automobile capacity is provided.Battery capacity detecting instrument
101 can be serially connected in electric car 102 and between charging pile 103.Since electric car 102 is in charging, charging can be passed through
Cable sends CAN (the Controller Area including SOC (State of Charge, state-of-charge) value to charging pile 103
Network, controller local area network) communication data, therefore, when electric car 102 is connect and to electric car with charging pile 103
When battery charging (not shown), battery capacity detecting instrument 101 can detecte batteries of electric automobile from the first state-of-charge
The quantity of electric charge needed for charging to the second state-of-charge, wherein state-of-charge is the remaining capacity and electronic vapour of batteries of electric automobile
Ratio between the battery capacity of vehicle battery is based on the quantity of electric charge detected, the first state-of-charge and the second state-of-charge, determines
Certain amount of charge needed for the every charging particular percentile electricity of batteries of electric automobile is based on the certain amount of charge, determines electronic
Total amount of electric charge needed for automobile batteries fully charged (i.e. a hundred percent electricity), and the total amount of electric charge is determined as battery capacity.
It that is to say, it is electronic to determine using the variable quantity and the charged quantity of electric charge of state-of-charge in 102 charging process of electric car
The battery capacity of automobile 102, due to not needing completely to be charged and discharged to batteries of electric automobile, also not needing will be electronic
Automobile batteries is dismantled, and detection efficiency both greatly improved, and will not cause energy waste, additionally it is possible to be realized to electric car
Detection after battery factory, saves cost.
Battery capacity detecting instrument 101 is the instrument for detecting batteries of electric automobile, as shown in Fig. 2, the battery capacity detects
Instrument 101 may include transfer box 1011, data collection and analysis terminal 1012 and display terminal 1013, wherein transfer box
It is connected between 1011 and data collection and analysis terminal 1012 by CAN line and sensor connecting line.
The first charging interface 10111 and charging gun for meeting national standard or international standard can be set in transfer box 1011
10112, the charging gun 10112 of first charging interface 10111 and charging pile 103 matches, and the charging of the transfer box 1011
Rifle 10112 and the second charging interface 1021 of electric car 102 match, so as to be serially connected in electric car 102 and charging
Between stake 103, in addition, the transfer box 1011 can also be provided to data collection and analysis terminal 1012 for acquiring charge cable
The interface of middle data, such as the CAN communication data-interface being connect with CAN line and the current sensor being connect with sensor connecting line
10113 data-interface, so that it is guaranteed that battery capacity detecting instrument 101 can be realized the capacity check to batteries of electric automobile.
For example, a kind of structural schematic diagram of transfer box 1011 can be as shown in Figure 3.Transfer box 1011 includes the first charging
Mouth 10111, charging gun 10112, current sensor 10113, the first communication interface 10114 and the second communication interface 10115.Its
In, current sensor 10113 can be serially connected in DC (Direct Current, direct current)+end of the first charging interface 10111, the
One communication interface 10114 and the second communication interface 10115 are CAN communication data-interface, and the first communication interface 10114 can be
S+, the second communication interface 10115 can be S-.
It is (set in advance for adopting from transfer box 1011 that capture card can be set in data collection and analysis terminal 1012
Collect the integrated circuit board of data), to acquire the CAN communication data and current sensor in charge cable by the capture card
10113 data, and handled and analyzed, to obtain the battery capacity of electric car 102.
Wherein, data collection and analysis terminal 1012 can parse from CAN communication data and obtain SOC value, pass from electric current
The data acquisition of sensor 10113 obtains the electric current to charge to batteries of electric automobile, so determined based on the electric current obtain into
The quantity of electric charge of row charging.
Display terminal 1013 may include display, for showing testing result.
Wherein, display terminal 1013 can be connected with data collection and analysis terminal 1012 by wired or wireless mode
It connects.
It should be noted that in practical applications, data collection and analysis terminal 1012 or display terminal 1013 can also be with
The communication components such as voice outputs component, WIFI and the button and indicator light such as including loudspeaker.Wherein, voice output component is used for language
Sound plays testing result or other prompt informations related with detection；Communication component is used between other equipment (than in full
According to acquisition and analysing terminal 1012 and display terminal 1013) communication；Button is used to receive the relevant operation instruction of user, such as
It is switched on, shuts down, starting to detect or terminate detection etc.；Indicator light can serve to indicate that testing result or detection process.
It should also be noted that, in practical applications, transfer box 1011, data collection and analysis terminal 1012 and display are eventually
End 1013 also can integrate on one device.
Electric car 102 is, with motor driven wheels travel, to meet road traffic, safety law using vehicle power supply as power
Advise the vehicle of requirements.
Charging pile 103 is the equipment to charge to electric car 102.The input terminal and AC network of the charging pile 103
It is directly connected to, output end is equipped with the charging gun 10112 for charging for electric car 102.
It should be noted that in practical applications, battery capacity detecting instrument 101 also can integrate in electric car 102
Or on charging pile 103.
State-of-charge is the battery appearance of the remaining capacity that state-of-charge is batteries of electric automobile and the batteries of electric automobile
Ratio between amount.State-of-charge can indicate that value range is 0~100%, the table when state-of-charge is 0 with percentage
Show that battery discharge is complete, indicates that battery is completely filled with when state-of-charge is 100%.
Wherein, the first state-of-charge is to carry out detecting obtained charged shape for the first time when batteries of electric automobile capacity check
State, the second state-of-charge are the state-of-charge detected after detecting the first state-of-charge.
It should be noted that the first state-of-charge and the second state-of-charge can be the state-of-charge being previously set；Alternatively,
First state-of-charge can be state-of-charge be previously set or currently detected, and the second state-of-charge can be in detection the
State-of-charge detected by preset duration after one state-of-charge；First state-of-charge can be previously set or current inspection
The state-of-charge measured, the second state-of-charge can increase the numerical value after the first preset value for the first state-of-charge.
It should also be noted that, preset duration or the first preset value can be by being determined in advance, for example, preset duration can be with
It is ten minutes, 15 minutes or 20 minutes, the first preset value can be 5%, 10%, 15% or 30%.
The quantity of electric charge is the physical quantity for measuring charge.
Particular percentile can be obtained by being determined in advance to obtain, such as by receiving the numerical value that user inputs.This is specific
Percentage may include any percentage greater than 0 and less than or equal to 100%, for example, the particular percentile may include
5%, 10% or 30%.Certainly, in practical applications, particular percentile can also be other numerical value, for example can be the second lotus
The difference of electricity condition and the first state-of-charge.
Battery capacity is to measure one of the important performance indexes of battery performance, it indicates (discharge rate, temperature under certain condition
Degree, final voltage etc.) electricity released of battery, i.e. the capacity of battery.
It referring to figure 4., is a kind of flow chart of batteries of electric automobile capacity check method provided in an embodiment of the present invention.It should
Batteries of electric automobile capacity check method can be applied in battery capacity detecting instrument among the above.
Step S401, when electric car is connect and when charging batteries of electric automobile into electric car with charging pile, inspection
Survey batteries of electric automobile from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, wherein state-of-charge be electricity
Ratio between the remaining capacity of electrical automobile battery and the battery capacity of batteries of electric automobile.
Due to during the charging process, the ratio of the state-of-charge of batteries of electric automobile, i.e. remaining capacity and battery capacity is
It is ever-increasing, therefore, for the ease of subsequent determination to the quantity of electric charge needed for the charging batteries of electric automobile particular percentile, in turn
Total charge dosage needed for batteries of electric automobile is filled to a hundred percent is determined, to realize during the charging process to electric car electricity
The battery capacity in pond detects, and improves detection efficiency, saves the energy and cost, it is charged from first to can detecte batteries of electric automobile
The quantity of electric charge needed for state charges to the second state-of-charge.
If the first state-of-charge and the second state-of-charge are the state-of-charge being previously set, can detect currently
When state-of-charge is the first state-of-charge, start to count the quantity of electric charge for charging to batteries of electric automobile, it is charged detecting
When state is the second state-of-charge, terminate statistics, and the quantity of electric charge of statistics is determined as batteries of electric automobile from the first charged shape
The quantity of electric charge needed for state charges to the second state-of-charge.If the first state-of-charge is the state-of-charge being previously set, the second lotus
Electricity condition is state-of-charge detected by preset duration or the increase of the first state-of-charge the after detect the first state-of-charge
Numerical value after one preset value then can start statistics to electronic when detecting current state-of-charge is the first state-of-charge
The quantity of electric charge that automobile batteries charges, and terminate to count after lasting statistics preset duration, or charged detecting
State terminates to count when being the second state-of-charge, so that the quantity of electric charge of statistics is determined as batteries of electric automobile from the first charged shape
The quantity of electric charge needed for state charges to the second state-of-charge.If the first state-of-charge is currently detected state-of-charge, can
Currently to start to count the quantity of electric charge to charge, and terminate to count after lasting statistics preset duration, or examining
Measuring when state-of-charge is the second state-of-charge terminates to count, so that the quantity of electric charge of statistics is determined as batteries of electric automobile from the
The quantity of electric charge needed for one state-of-charge charges to the second state-of-charge.
Step S402 is based on the quantity of electric charge detected, the first state-of-charge and the second state-of-charge, determines electric car electricity
Certain amount of charge needed for the every charging particular percentile electricity in pond.
The quantity of electric charge needed for often filling particular percentile electricity as batteries of electric automobile is identical, that is to say, electric car electricity
Pond, which is filled to a hundred percent electricity, can be equivalent to the particular percentile electricity for the corresponding number that charges, so for the ease of subsequent true
Determine the quantity of electric charge needed for batteries of electric automobile is filled to a hundred percent electricity, can determine that batteries of electric automobile often fills specific percentage
Than the quantity of electric charge needed for electricity.
Due to the ratio between certain amount of charge and particular percentile, can with it is aforementioned in the detected quantity of electric charge and the
The ratio of difference is equal between two state-of-charges and the first state-of-charge, hence, it can be determined that the quantity of electric charge detected and second
The product between the ratio and the particular percentile is determined as by the ratio of difference between state-of-charge and the first state-of-charge
Certain amount of charge needed for the every charging particular percentile electricity of batteries of electric automobile.
Step S403 is based on certain amount of charge, determines the fully charged required total amount of electric charge of batteries of electric automobile, and by charge
Total amount is determined as battery capacity.
From the foregoing it will be appreciated that batteries of electric automobile, which is filled to a hundred percent electricity, can be equivalent to the specific of the corresponding number of charging
Therefore percentage electricity can determine electric car electricity based on the certain amount of charge of charging batteries of electric automobile particular percentile
The fully charged required total amount of electric charge in pond, which is battery capacity.
It can determine the ratio between certain amount of charge and particular percentile, by the ratio and the absolutely product,
It is determined as the fully charged required total amount of electric charge of batteries of electric automobile.
It should be noted that in practical applications, electricity needed for often filling particular percentile electricity as batteries of electric automobile
Lotus amount is not necessarily essentially equal, when state-of-charge is between 20%-80%, charge needed for every charging particular percentile electricity
Measure it is equal, when state-of-charge is between 0-20% and 80%-100%, the quantity of electric charge needed for every charging particular percentile electricity
Have error.But batteries of electric automobile includes battery management system, which can calibrate error, charged after calibration
Amount of state variation is determined for the fully charged required total amount of electric charge of batteries of electric automobile, that is, is used to determine batteries of electric automobile
Capacity.
In embodiments of the present invention, due to being connect with charging pile and electric car into electric car is electric when electric car
When pond is charged, the quantity of electric charge needed for batteries of electric automobile often fills particular percentile electricity is identical, that is to say, batteries of electric automobile fills
The full particular percentile electricity that can be equivalent to the corresponding number that charges to a hundred percent electricity, therefore electronic vapour can be can detecte
Vehicle battery from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, be based on the quantity of electric charge detected, the first lotus
Electricity condition and the second state-of-charge, certain amount of charge needed for determining the every charging particular percentile electricity of batteries of electric automobile, base
In the certain amount of charge, total amount of electric charge needed for determining batteries of electric automobile fully charged (i.e. a hundred percent electricity), and by institute
It states total amount of electric charge and is determined as battery capacity.It that is to say, variable quantity and institute using state-of-charge in electric car charging process
The quantity of electric charge of charging determines the battery capacity of electric car, due to do not need to carry out batteries of electric automobile complete charging and
Electric discharge does not need to dismantle batteries of electric automobile yet, and detection efficiency both greatly improved, will not cause energy waste,
It can also realize to the detection after batteries of electric automobile factory, save cost.
Referring to figure 5., for another embodiment of the present invention provides a kind of batteries of electric automobile capacity check method process
Figure.The batteries of electric automobile capacity check method can be applied in battery capacity detecting instrument among the above.
Step S501 obtains current state-of-charge.
In order to ensure the subsequent state-of-charge variation according to during charging batteries of electric automobile and the corresponding quantity of electric charge,
It determines certain amount of charge needed for batteries of electric automobile often fills particular percentile electricity, and then determines the battery of batteries of electric automobile
Capacity, available current state-of-charge.
Wherein, the mode for obtaining state-of-charge may refer to associated description in aforementioned, no longer repeat one by one herein.
Step S502 determines the first state-of-charge based on current state-of-charge.
In order to determine the opportunity for starting to count the quantity of electric charge and state-of-charge variable quantity, and then it is convenient for the electronic vapour of subsequent determination
State-of-charge variable quantity and the corresponding quantity of electric charge in vehicle battery charging process can determine based on current state-of-charge
One state-of-charge.
Preferably, in order to simplify the process for determining the first state-of-charge, the time is saved, batteries of electric automobile capacity is improved
Current state-of-charge can be determined as the first state-of-charge by detection efficiency；Or, since CAN communication data include charged
State may be shaping numerical value, and the state-of-charge of batteries of electric automobile may not be shaping numerical value, i.e., jump in state-of-charge
Except other opportunitys, detected state-of-charge may be inaccurate, and therefore, more accurate first is charged in order to obtain
State charges to the state-of-charge variable quantity of the second state-of-charge, reduces error, improves the accuracy of detection battery capacity, can be with
Current state-of-charge is increased into the second preset value, and using the numerical value after increase as the first state-of-charge.It that is to say, the first lotus
Electricity condition can be batteries of electric automobile in the state-of-charge at current time, alternatively, can be batteries of electric automobile when current
State-of-charge after quarter.
Wherein, the second preset value can be by being determined in advance to obtain, and the second pre- numerical value may be greater than 0 and be less than or be less than
100% any value,
Preferably due to which the state-of-charge of national regulations is integer numerical value, so second is default in order to improve detection accuracy
Value can be shaping numerical value, that is to say, can detect that state-of-charge is sent out for the first time after detecting current state-of-charge
When raw jump (increasing the second preset value), the state-of-charge after jump is determined as the first state-of-charge.
Wherein, the second preset value can be 1%.
First state-of-charge is increased the first preset value by step S503, and using the numerical value after increase as the second charged shape
State.
In order to determine the opportunity for terminating the statistics quantity of electric charge and state-of-charge variable quantity, and then it is convenient for the electronic vapour of subsequent determination
It is pre- can be increased first by state-of-charge variable quantity and the corresponding quantity of electric charge in vehicle battery charging process for first state-of-charge
If value, and using the numerical value after increase as the second state-of-charge.
Wherein, the first preset value can be used as batteries of electric automobile during the charging process, state-of-charge is from the first charged shape
State increases the state-of-charge variable quantity of the second state-of-charge.
Preferably due to which the state-of-charge of national regulations is integer numerical value, so first is default in order to improve detection accuracy
Value can be shaping numerical value, that is to say, can detect that state-of-charge variable quantity is the after detecting the first state-of-charge
When one preset value, the state-of-charge after variation is determined as the second state-of-charge.
In addition, in practical applications, if the second state-of-charge by after detecting the first state-of-charge preset duration examined
The state-of-charge measured, that is to say, it may not be necessary to detect batteries of electric automobile from the first state-of-charge in following step S304
The second state-of-charge is determined before the quantity of electric charge needed for charging to the second state-of-charge, then can not be executed above-mentioned charged by first
State increases the first preset value, and using the numerical value after increase as the step of the second state-of-charge, that is to say, step S503 is can
The step of selecting.
Step S504, when electric car is connect and when charging batteries of electric automobile into electric car with charging pile, inspection
Survey batteries of electric automobile from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, wherein state-of-charge be electricity
Ratio between the remaining capacity of electrical automobile battery and the battery capacity of batteries of electric automobile.
Preferably due to which batteries of electric automobile is during the charging process, therefore it, is terrible that electric current, which may not be constant,
To accurate battery from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, and then improve detection electric car
The accuracy of battery capacity, available batteries of electric automobile charges to needed for the second state-of-charge from the first state-of-charge to be filled
Electric duration and batteries of electric automobile from the first state-of-charge charge to the second state-of-charge during electric current, by electric current pair
The integrated value of charging duration, be determined as batteries of electric automobile from the first state-of-charge charge to the second state-of-charge needed for charge
Amount.
Charging duration be at the time of detecting the first state-of-charge between at the time of detecting the second state-of-charge when
It is long.In practical applications, which can be obtained by timer, it is of course also possible to be obtained by external manual time-keeping.
Formula can be passed throughElectric current integrates charging duration.Wherein, m is integral result, i.e., electronic
Automobile batteries from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge；ItIt is t moment to batteries of electric automobile
The electric current of charging, t1Moment is t at the time of detecting the first state-of-charge2Moment is at the time of detecting the second state-of-charge.
Step S505 is based on the quantity of electric charge detected, the first state-of-charge and the second state-of-charge, determines electric car electricity
Certain amount of charge needed for the every charging particular percentile electricity in pond.
Preferably, in order to save determining battery capacity the step of, and then improve detection efficiency, particular percentile percent
One, correspondingly, the difference of the second state-of-charge and the first state-of-charge can be determined, by the ratio of the quantity of electric charge detected and difference
Value, is determined as certain amount of charge.
Formula can be passed throughTo determine certain amount of charge.Wherein, h is certain amount of charge, b second
State-of-charge, a are the first state-of-charge.Alternatively, can pass throughTo determine certain amount of charge.Wherein c is
The state-of-charge that abovementioned steps S501 is detected, d are the second preset value.
Step S506 is based on certain amount of charge, determines the fully charged required total amount of electric charge of batteries of electric automobile, and by the electricity
Lotus total amount is determined as battery capacity.
Wherein, it is based on certain amount of charge, determines the mode of the fully charged required total amount of electric charge of batteries of electric automobile, Ke Yican
See the associated description in aforementioned, no longer repeats one by one herein.
When particular percentile was percent a period of time, needed for can determining that batteries of electric automobile is fully charged by n=h*100
Total amount of electric charge.Wherein, n is the fully charged required total amount of electric charge of batteries of electric automobile, be that is to say, battery capacity.
In embodiments of the present invention, firstly, since when electric car is connect and electronic into electric car with charging pile
When automobile batteries charges, the quantity of electric charge needed for batteries of electric automobile often fills particular percentile electricity is identical, that is to say, electric car
Battery, which is filled to a hundred percent electricity, can be equivalent to the particular percentile electricity for the corresponding number that charges, therefore can detecte
Batteries of electric automobile from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, based on the quantity of electric charge detected,
First state-of-charge and the second state-of-charge, specific charge needed for determining the every charging particular percentile electricity of batteries of electric automobile
Amount, based on the certain amount of charge, total amount of electric charge needed for determining batteries of electric automobile fully charged (i.e. a hundred percent electricity), and
The total amount of electric charge is determined as battery capacity.That is to say, using the variable quantity of state-of-charge in electric car charging process with
And the charged quantity of electric charge determines the battery capacity of electric car, due to not needing completely to be filled to batteries of electric automobile
Electricity and electric discharge do not need to dismantle batteries of electric automobile yet, and detection efficiency both greatly improved, and the energy will not be caused unrestrained
Take, additionally it is possible to realize to the detection after batteries of electric automobile factory, save cost.
Secondly as the included state-of-charge of CAN communication data may be shaping numerical value, and batteries of electric automobile is charged
State may not be shaping numerical value, therefore after detecting current state-of-charge, detect that state-of-charge occurs for the first time
When jump (increasing the second preset value of shaping numerical value), the state-of-charge after jump is determined as the first state-of-charge, from
And the accuracy of the first state-of-charge is improved, further improve the accuracy of detection battery capacity.
Fig. 6 is please referred to, for the functional module for the batteries of electric automobile capacity checking apparatus 600 that one embodiment of the invention provides
Schematic diagram, as shown in fig. 6, the device specifically includes: detection module 601, the first determining module 602 and the second determining module 603.
Detection module 601, for being connect with charging pile and batteries of electric automobile into electric car fills when electric car
When electric, detection batteries of electric automobile from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, wherein charged shape
State is the ratio between the remaining capacity of batteries of electric automobile and the battery capacity of batteries of electric automobile；
First determining module 602, for being based on the quantity of electric charge detected, the first state-of-charge and the second state-of-charge, really
Certain amount of charge needed for determining the every charging particular percentile electricity of batteries of electric automobile；
Second determining module 603 determines that the fully charged required charge of batteries of electric automobile is total for being based on certain amount of charge
Amount, and the total amount of electric charge is determined as battery capacity.
Preferably, the device further include:
Module is obtained, for obtaining current state-of-charge；
Third determining module, for determining the first state-of-charge based on current state-of-charge；
Increase module, for the first state-of-charge to be increased the first big preset value, and using the numerical value after increase as second
State-of-charge.
Preferably, third determining module includes:
First determines submodule, for current state-of-charge to be determined as the first state-of-charge；Or,
Second determines submodule, for current state-of-charge to be increased the second preset value, and the numerical value after increase is made
For the first state-of-charge.
Preferably, which includes:
First acquisition submodule charges to the second state-of-charge institute from the first state-of-charge for obtaining batteries of electric automobile
Need charging duration and batteries of electric automobile from the first state-of-charge charge to the second state-of-charge during electric current；
Third determines submodule, for the integrated value by electric current to charging duration, is determined as batteries of electric automobile from first
The quantity of electric charge needed for state-of-charge charges to the second state-of-charge.
Preferably, the first determining module 602 includes:
4th determines submodule, for determining the difference of the second state-of-charge and the first state-of-charge；
5th determines submodule, for being determined as certain amount of charge for the ratio of the quantity of electric charge detected and the difference.
The method that above-mentioned apparatus is used to execute previous embodiment offer, it is similar that the realization principle and technical effect are similar, herein not
It repeats again.
The above module can be arranged to implement one or more integrated circuits of above method, such as: one
Or multiple specific integrated circuits (Application Specific Integrated Circuit, abbreviation ASIC), or, one
Or multi-microprocessor (digital singnal processor, abbreviation DSP), or, one or more field programmable gate
Array (Field Programmable Gate Array, abbreviation FPGA) etc..For another example, when some above module passes through processing elements
When the form of part scheduler program code is realized, which can be general processor, such as central processing unit (Central
Processing Unit, abbreviation CPU) or it is other can be with the processor of caller code.For another example, these modules can integrate
Together, it is realized in the form of system on chip (system-on-a-chip, abbreviation SOC).
Fig. 7 is please referred to, is the schematic diagram for the batteries of electric automobile capacity checking apparatus 700 that one embodiment of the invention provides,
The device can integrate in batteries of electric automobile or charging pile.
The device includes: memory 701, processor 702.
Memory is for storing program, and processor calls the program of memory storage, to execute above method embodiment.Tool
Body implementation is similar with technical effect, and which is not described herein again.
In several embodiments provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or logical of device or unit
Letter connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) or processor (English: processor) execute this hair
The part steps of bright each embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory
(English: Read-Only Memory, abbreviation: ROM), random access memory (English: Random Access Memory, letter
Claim: RAM), the various media that can store program code such as magnetic or disk.
Claims (10)
1. a kind of batteries of electric automobile capacity check method, which is characterized in that the described method includes:
When electric car is connect and when charging batteries of electric automobile into the electric car with charging pile, detect described electronic
Automobile batteries from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge；
Based on the quantity of electric charge detected, first state-of-charge and second state-of-charge, the electric car electricity is determined
Certain amount of charge needed for the every charging particular percentile electricity in pond；
Based on the certain amount of charge, the fully charged required total amount of electric charge of the batteries of electric automobile is determined, and by the charge
Total amount is determined as the battery capacity.
2. batteries of electric automobile capacity check method as described in claim 1, which is characterized in that described electronic in the detection
Automobile batteries from the first state-of-charge charge to the second state-of-charge needed for before the quantity of electric charge, the method also includes:
Obtain current state-of-charge；
Based on the current state-of-charge, first state-of-charge is determined；
First state-of-charge is increased into the first preset value, and using the numerical value after increase as the second state-of-charge.
3. batteries of electric automobile capacity check method as claimed in claim 2, which is characterized in that described based on described current
State-of-charge determines first state-of-charge, comprising:
The current state-of-charge is determined as first state-of-charge；Or,
The current state-of-charge is increased into the second preset value, and using the numerical value after increase as first state-of-charge.
4. batteries of electric automobile capacity check method as described in claim 1, which is characterized in that the detection electronic vapour
Vehicle battery from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, comprising:
Obtain the batteries of electric automobile from first state-of-charge charge to second state-of-charge needed for charging when
The long and described batteries of electric automobile from first state-of-charge charge to second state-of-charge during electric current；
By the electric current to the integrated value of the charging duration, it is determined as the batteries of electric automobile from first state-of-charge
The quantity of electric charge needed for charging to second state-of-charge.
5. batteries of electric automobile capacity check method as described in claim 1, which is characterized in that the particular percentile is hundred
/ mono-, it is described to be based on the quantity of electric charge detected, first state-of-charge and second state-of-charge, it determines described electronic
Certain amount of charge needed for the every charging particular percentile electricity of automobile batteries, comprising:
Determine the difference of second state-of-charge Yu first state-of-charge；
By the ratio of the quantity of electric charge detected and the difference, it is determined as the certain amount of charge.
6. a kind of batteries of electric automobile capacity checking apparatus, which is characterized in that described device includes:
Detection module, for being connect with charging pile and charging batteries of electric automobile into the electric car when electric car
When, detect the batteries of electric automobile from the first state-of-charge charge to the second state-of-charge needed for the quantity of electric charge, wherein it is charged
State is the ratio between the remaining capacity of the batteries of electric automobile and the battery capacity of the batteries of electric automobile；
First determining module, for being based on the quantity of electric charge detected, first state-of-charge and second state-of-charge, really
Certain amount of charge needed for the fixed every charging particular percentile electricity of batteries of electric automobile；
Second determining module determines the fully charged required charge of the batteries of electric automobile for being based on the certain amount of charge
Total amount, and the total amount of electric charge is determined as the battery capacity.
7. batteries of electric automobile capacity checking apparatus as claimed in claim 6, which is characterized in that described device further include:
Module is obtained, for obtaining current state-of-charge；
Third determining module, for determining first state-of-charge based on the current state-of-charge；
Increase module, for first state-of-charge to be increased the first preset value, and using the numerical value after increase as the second lotus
Electricity condition.
8. batteries of electric automobile capacity checking apparatus as claimed in claim 7, which is characterized in that the third determining module packet
It includes:
First determines submodule, for the current state-of-charge to be determined as first state-of-charge；Or,
Second determines submodule, for the current state-of-charge to be increased the second preset value, and the numerical value after increase is made
For first state-of-charge.
9. batteries of electric automobile capacity checking apparatus as claimed in claim 6, which is characterized in that the detection module includes:
First acquisition submodule charges to second lotus from first state-of-charge for obtaining the batteries of electric automobile
It is charged that charging duration needed for electricity condition and the batteries of electric automobile from first state-of-charge charge to described second
Electric current in state procedure；
Third determines submodule, for the integrated value by the electric current to the charging duration, is determined as the electric car electricity
Pond from first state-of-charge charge to second state-of-charge needed for the quantity of electric charge.
10. batteries of electric automobile capacity checking apparatus as claimed in claim 6, which is characterized in that first determining module
Include:
4th determines submodule, for determining the difference of second state-of-charge Yu first state-of-charge；
5th determines submodule, for being determined as the certain amount of charge for the ratio of the quantity of electric charge detected and the difference.
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| CN201811071112.0A CN109239613A (en) | 2018-09-13 | 2018-09-13 | A kind of batteries of electric automobile capacity check method and device |
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Application publication date: 20190118 |