CN106291389B - A kind of indicating means of battery remaining power, apparatus and system - Google Patents
A kind of indicating means of battery remaining power, apparatus and system Download PDFInfo
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- CN106291389B CN106291389B CN201610891379.9A CN201610891379A CN106291389B CN 106291389 B CN106291389 B CN 106291389B CN 201610891379 A CN201610891379 A CN 201610891379A CN 106291389 B CN106291389 B CN 106291389B
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- battery
- target component
- duty ratio
- voltage signal
- remaining capacity
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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]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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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
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
Abstract
The embodiment of the invention discloses a kind of indicating means of battery remaining power, apparatus and system.This method comprises: obtaining the current remaining capacity of battery；The duty ratio of the voltage signal to export to target component is determined according to current remaining capacity and default correspondence relationship information；Battery, which is controlled, according to identified duty ratio exports corresponding voltage signal to target component, to indicate that the duty ratio of voltage signal and default correspondence relationship information determine the current remaining capacity of battery to target component based on the received, and corresponding operation is executed according to identified current remaining capacity.The embodiment of the present invention is by using above-mentioned technical proposal, so that having good matching between battery and target component, target component can obtain accurate battery remaining power according to the duty ratio for the voltage signal that battery exports, and execute corresponding operation, to improve the service performance of vehicle and the usage experience of user, extend the service life of battery.
Description
Technical field
The present embodiments relate to rechargeable battery technical field more particularly to a kind of indicating means of battery remaining power,
Apparatus and system.
Background technique
Battery is widely used by people always as " facilitating battery ", and battery can be powered for various systems,
And in order to guarantee the normal operation of system, many components in system need to be executed according to the residual capacity (or electricity) of battery
Corresponding operation.By taking common electric vehicle as an example, the electricity display instrument of electric vehicle need real-time display battery remaining power with
User is facilitated to know that the residue of battery uses time, and then reasonable arrangement stroke and charging plan.
In general, there are certain relationship, electric vehicle control systems for the current remaining capacity and the current voltage of battery of battery
Interior component can determine corresponding battery current remaining capacity according to the current voltage of battery.However in battery use process
In, due to overcharging, the factors such as power shortage and overload, it is easy to happen battery aging phenomenon, so that the battery capacity of battery is gradually
Decline, or even be not available.When aging occurs for battery, user usually needs replacing new battery.By taking electric vehicle as an example,
When the new accumulator total capacity of user's replacement and former battery difference, user is often, it can be seen that the electricity display instrument of electric vehicle
It can not accurately show the remaining capacity of battery.However, even if the new accumulator total capacity of replacement is identical as former battery, by
In different battery material differences, structure is different, and the factors such as ambient temperature effect, different battery can show different voltage
Platform, the voltage that will appear certain batteries in electric discharge declines first quick and back slow, and the decline of the voltage of certain batteries is then first slow
Fast situation afterwards, the i.e. voltage of new accumulator are different with former battery from the corresponding relationship of residual capacity, so as to cause electric vehicle
Electricity display instrument still cannot accurately show the remaining capacity of battery so that user can not be according to display instrument accurate judgement
The residual capacity of battery, so that easily there is remaining battery capacity deficiency in user's use process, and user is not also
Electric vehicle is continued to use in the case where knowing, it is out of power on the way to eventually lead to electric vehicle, and cause discharged or defective battery；Or in electric power storage
When the electricity in pond is more, display instrument but shows that electricity is low, causes user that need to charge waiting, and be easy to appear battery and have been filled with,
And user continues to charge in ignorant situation, causes over-charging of battery, has seriously affected the usage experience of user, and power shortage
With overcharge the service life that can all largely effect on battery, and the battery of different model and display instrument are being subjected to mass
When assembling, often there is the case where battery chooses table, i.e. battery must be used cooperatively and can accurately show with instrument is particularly shown
The remaining capacity of battery, there are the matching of battery and display instrument limitations, affect the versatility of battery and display instrument.
Summary of the invention
In view of this, the embodiment of the present invention proposes a kind of indicating means of battery remaining power, apparatus and system, with solution
Certainly the needs in battery and system execute the problem of the matching difference between the component of different operation according to battery remaining power.
In a first aspect, the embodiment of the invention provides a kind of indicating means of battery remaining power, comprising:
Obtain the current remaining capacity of battery；
The voltage signal to export to target component is determined according to the current remaining capacity and default correspondence relationship information
Duty ratio, wherein the default correspondence relationship information include pre-set battery residual capacity with to the target portion
The correspondence relationship information of the duty ratio of the voltage signal of part output；
Battery is controlled according to identified duty ratio and exports corresponding voltage signal to the target component, described in instruction
The duty ratio of voltage signal and the default correspondence relationship information determine the current surplus of battery to target component based on the received
Covolume amount, and corresponding operation is executed according to identified current remaining capacity.
Second aspect, the embodiment of the invention provides a kind of instruction devices of battery remaining power, comprising:
Procurement of reserve capacity module, for obtaining the current remaining capacity of battery；
Duty cycle determination module, for being determined according to the current remaining capacity and default correspondence relationship information to target
The duty ratio of the voltage signal of component output, wherein the default correspondence relationship information includes the residue of pre-set battery
The correspondence relationship information of capacity and the duty ratio of the voltage signal exported to the target component；
Voltage output module exports corresponding electricity to the target component for controlling battery according to identified duty ratio
Signal is pressed, to indicate the target component duty ratio of voltage signal and the default correspondence relationship information based on the received
It determines the current remaining capacity of battery, and corresponding operation is executed according to identified current remaining capacity.
The third aspect, the embodiment of the invention provides a kind of instruction system of battery remaining power, the system integration this
The instruction device of battery remaining power in inventive embodiments.
The indication scheme of battery remaining power provided in an embodiment of the present invention, after the current remaining capacity for obtaining battery,
The duty ratio of the voltage signal to export to target component is determined according to current remaining capacity and default correspondence relationship information,
In, default correspondence relationship information includes the residual capacity of pre-set battery and accounting for for the voltage signal that exports to target component
The correspondence relationship information of empty ratio finally controls battery according to identified duty ratio and exports corresponding voltage letter to target component
Number, to indicate that the duty ratio of voltage signal and above-mentioned default correspondence relationship information determine battery to target component based on the received
Current remaining capacity, and according to identified current remaining capacity execute corresponding operation.The embodiment of the present invention by using
Above-mentioned technical proposal, so that needs in battery and system are executed according to battery remaining power to be had between the component of different operation
Good matching, the associated components in system can obtain accurate battery according to the duty ratio for the voltage signal that battery exports
Residual capacity, and corresponding operation is executed, to improve the service performance of vehicle, the usage experience of user is improved, and can prolong
The service life of long battery.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, institute in being described below to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also implement according to the present invention
The content of example and these attached drawings obtain other attached drawings.
Fig. 1 is a kind of indicating means flow diagram for battery remaining power that the embodiment of the present invention one provides；
Fig. 2 is a kind of indicating means flow diagram of battery remaining power provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of instruction device structural schematic diagram for battery remaining power that the embodiment of the present invention three provides；
Fig. 4 is a kind of instruction system structure diagram for battery remaining power that the embodiment of the present invention four provides；
Fig. 5 is the waveform diagram provided by Embodiment 2 of the present invention that corresponding voltage signal is exported to target component.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing or method described as flow chart.Although each step is described as the processing of sequence by flow chart, many of these
Step can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of each step can be rearranged.When its operation
The processing can be terminated when completion, it is also possible to have the additional step being not included in attached drawing.The processing can be with
Corresponding to method, function, regulation, subroutine, subprogram etc..
Embodiment one
Fig. 1 is a kind of indicating means flow diagram for battery remaining power that the embodiment of the present invention one provides, this method
It can be executed by the instruction device of battery remaining power, wherein the device can be implemented by software and/or hardware, and can generally be integrated in
In battery or there are in the other component of connection relationship with battery.As shown in Figure 1, this method comprises:
Step 101, the current remaining capacity for obtaining battery.
Battery capacity refers to that the size of battery institute storing electricity, the unit of battery capacity are generally indicated with ampere-hour (Ah),
If the rated capacity of battery is 1300Ah, with the electric current of 130A to battery discharge, then the battery can be continued working 10 hours.
Illustratively, the capacity that the residual capacity of battery described in the embodiment of the present invention is specifically as follows remaining battery accounts for battery
The percentage of total capacity.
The acquisition modes of the current remaining capacity of battery are not especially limited in the present embodiment, for example, voltage can be used
Detect the current remaining capacity that the mode that combines with algorithm determines battery, wherein the algorithm can be by testing or emulating etc. just
Formula determines.
Step 102, the voltage according to current remaining capacity and the determination of default correspondence relationship information to be exported to target component
The duty ratio of signal.
Wherein, above-mentioned default correspondence relationship information includes that the residual capacity of pre-set battery is exported with to target component
Voltage signal duty ratio correspondence relationship information.
Duty ratio specifically can refer to significant level time ratio shared within a cycle, for example, the duty ratio of square wave
It is 50%, indicates that the time shared by positive level is 0.5 period in square wave.
Illustratively, correspondence relationship information can refer to the information comprising corresponding relationship, the information can with text, code or
The forms such as list exist.Target component concretely needs to execute the component of different operation, such as electricity according to battery remaining power
Display instrument.
Illustratively, default correspondence relationship information can be with are as follows: battery remaining power is respectively 20%, 40%, 60%, 80%
When with 100%, the duty ratio for the voltage signal that corresponding battery is exported to target component is respectively 20%, 40%, 60%, 80%
With 100%.After obtaining current remaining capacity, then the voltage to export to target component can be determined according to default correspondence relationship information
The duty ratio of signal.
Step 103 controls battery according to identified duty ratio to the corresponding voltage signal of target component output, with instruction
The duty ratio of voltage signal and above-mentioned default correspondence relationship information determine the current surplus of battery to target component based on the received
Covolume amount, and corresponding operation is executed according to identified current remaining capacity.
Illustratively, if the current remaining capacity for obtaining battery is 20%, according to default correspondence set in step 102
Relation information determines that the duty ratio for the voltage signal of battery currently exported should be 20%, the electricity exported according to determining battery
The duty ratio control battery of signal is pressed to export corresponding voltage signal, target component can be according to the voltage signal that battery exports
Duty ratio and default correspondence relationship information determine the current remaining capacity of battery, and are held according to identified current remaining capacity
Row corresponding operation.
The indicating means of battery remaining power provided in an embodiment of the present invention, by the current remaining capacity for obtaining battery；
The duty ratio of the voltage signal to export to target component is determined according to the current remaining capacity and default correspondence relationship information,
Wherein, the residual capacity and the electricity to target component output that the default correspondence relationship information includes pre-set battery
Press the correspondence relationship information of the duty ratio of signal；Battery, which is controlled, according to identified duty ratio exports corresponding electricity to target component
Signal is pressed, to indicate that the duty ratio of voltage signal and above-mentioned default correspondence relationship information determine target component based on the received
The current remaining capacity of battery, and corresponding operation is executed according to identified current remaining capacity.It is stored when being replaced for electric vehicle
When battery, it is understood that there may be need to execute different operation according to battery remaining power in the battery and former battery system after replacement
Component between matching difference problem, the embodiment of the present invention by using above-mentioned technical proposal, using make battery according to
The residual capacity of pre-set battery and the corresponding relationship of the duty ratio of the voltage signal exported to target component carry out output phase
The voltage signal answered, so that there is between associated components good matching in battery and system, the associated components energy in system
The duty ratio of enough voltage signals exported according to battery obtains accurate battery remaining power, and executes corresponding operation, thus
The service performance for improving vehicle, improves the usage experience of user, and be able to extend the service life of battery.
Optionally, battery and target component are located in electric vehicle, and target component may include electricity display instrument and/or control
Device processed.
Electricity display instrument is used to show the residual capacity of battery, and controller for electric vehicle is for controlling electric vehicle motor
Starting, operation, advance and retreat, speed, stopping and electric vehicle other electronic devices kernel control chip, be equivalent to electric vehicle
Brain is component important on electric vehicle.
Illustratively, the current remaining capacity for obtaining battery is 20%, according to default corresponding pass set in step 102
It is information, determines that the duty ratio of the current voltage signal of battery should be 20%, and controls battery and export corresponding voltage signal extremely
Electricity display instrument, the duty ratio and default correspondence relationship information of the voltage signal that electricity display instrument can be exported according to battery
To determine the current remaining capacity of battery, and corresponding operation is executed according to identified current remaining capacity.For example, electricity is aobvious
Show that instrument can drive pointer or the indicator light of instruction battery remaining power to indicate the capacity of remaining battery, to make electricity
Display instrument can accurately show the residual capacity of battery, and user can obtain accurate remaining battery according to electricity display instrument and hold
Information, and then reasonable arrangement stroke and charging plan are measured, the usage experience of user is improved.It should be noted that the electricity is aobvious
Show that instrument can be pointer-type, indicating lamp type or liquid crystal display formula etc., the embodiment of the present invention is not especially limited.
Illustratively, in the case where the current remaining capacity of battery is less, according to default correspondence relationship information, electricity is determined
The duty ratio of the voltage signal of pond output, and control battery and export corresponding voltage signal to controller, controller can obtain
Accurate battery remaining power information, and control battery and export lesser electric current, to prevent from exporting larger current due to battery, make
It obtains cell voltage and is dropped rapidly to under-voltage condition, while controller can also control associated components and prompt user, such as refer to
Show that lamp, voice, buzzer warning etc. prompt user to charge in time；When battery is in under-voltage condition, controller can be controlled
Battery is no longer powered to associated components, to protect associated components and battery, extends the service life of battery.It needs to illustrate
It is under-voltage to refer to battery discharge final stage, the case where supply voltage is already close to " final discharging voltage ".
Embodiment two
Fig. 2 is a kind of indicating means flow diagram of battery remaining power provided by Embodiment 2 of the present invention, this implementation
Example on the basis of the above embodiments, " will control battery according to identified duty ratio to export accordingly to the target component
Voltage signal " is refined.As shown in Fig. 2, this method comprises:
Step 201, the current remaining capacity for obtaining battery.
Step 202, the voltage according to current remaining capacity and the determination of default correspondence relationship information to be exported to target component
The duty ratio of signal.
Wherein, the default correspondence relationship information include pre-set battery residual capacity with to the target component
The correspondence relationship information of the duty ratio of the voltage signal of output.
Preferably, current remaining capacity can account for the hundred of the total capacity value of the battery for the current residual electricity value of battery
Divide ratio；Default correspondence relationship information may include that the residual capacity of pre-set battery is believed with the voltage exported to target component
Number duty ratio relation of equality.For example, can determine accounting for for the voltage signal of output if the residual capacity of battery is 23.5%
Sky is than being 23.5%.It should be noted that can be according to different residual capacity pointing accuracy demands, corresponding battery is arranged
Residual capacity with to the target component export voltage signal duty ratio corresponding relationship, to be further ensured that target
Component can obtain accurately battery remaining power information.The residual capacity of battery and the voltage signal to target component output
Duty ratio can also be unequal, as long as the duty ratio for the voltage signal that can be exported according to pre-set corresponding relationship and battery
Obtain the current remaining capacity of battery.For example, battery remaining power is respectively 10%, 30%, 50%, 70% and 90%
When, the duty ratio for the voltage signal that corresponding battery is exported to target component may respectively be 20%, 40%, 60%, 80% and
100%.
Step 203 determines battery in predetermined period to target component output high level according to identified duty ratio
Duration.
Duty ratio refers to significant level time ratio shared within a cycle.
Illustratively, corresponding time cycle and corresponding high level setting value are preset, when the voltage signal of output
Voltage value when reaching high level setting value, the voltage signal of output is significant level.It is defeated in a preset period of time
The ratio of high level duration and preset period of time is duty ratio in voltage signal out.According to preset period of time
With in step 202 determine duty ratio, then can calculate in predetermined period to target component output high level it is lasting when
Between.It is understood that high level setting value can be a fixed value (such as 5V), it is also possible to an interval range (such as
4.5V~5.5V), to ensure that the fuctuation within a narrow range of voltage signal does not interfere with target component to received voltage signal
The calculated result of duty ratio.
Specifically, high level setting value is set as 5V, and low level is set as 0V if preset period of time is set as 1ms,
The duty ratio of the voltage signal of the output determined in step 202 is 25%, then can determine within the 1ms period, output 5V electricity
The flat duration should be 0.25ms.In practical applications, it can convert battery to the output voltage that target component exports
5V, i.e., no matter battery actual output voltage is how many, and output voltage is converted to the output voltage of 5V and is delivered to target portion
Part exports 5V by the way that switch is arranged in battery output according to the duty ratio of determining voltage signal to control to target component
The duration of voltage signal.For example, the duty ratio of the voltage signal determined is 25%, then it can be at the beginning of the 1ms time
Quarter turns on the switch, and after continuing 0.25ms, turns off the switch, until the 1ms time cycle terminates, is again turned on switch, and continue
It turns off the switch after 0.25ms, moves in circles according to this, until the residual capacity of battery changes, the voltage signal of determining output is accounted for
Sky changes than also, and the duration of the 5V voltage exported to target component is adjusted according to the duty ratio after change.It needs
Bright, the embodiment of the present invention is not especially limited at the time of exporting high level in preset period of time, as long as can protect
Demonstrate,prove the duty ratio of the voltage signal of the output of the duration satisfaction determination of the defeated high level exported in preset period of time i.e.
It can.
In addition, low level can be set to the voltage value lower than high level.For example, if preset period of time is set as
1ms, high level setting value are set as 5V, and low level is set as 2V, in step 202 the duty of the voltage signal of determining output
Than being 25%, then can determine within the 1ms period, the duration of output 5V level should be 0.25ms, output 2V level
Duration is 0.75ms.It is understood that can by relevant voltage transformation module, timing module and switch module,
According to the duration for the high level that determining band is exported to target component, in such a way that software and/or hardware combines, automatically
Control the on and off of above-mentioned switch.
It is not as a limitation of the invention it should be noted that above-mentioned numerical value is only for illustration, it can be according to making
With demand, the parameters such as corresponding predetermined period and high level are set.
Step 204 controls battery according to the above-mentioned duration to the corresponding voltage signal of target component output, to indicate mesh
The duty ratio of voltage signal and default correspondence relationship information determine the current remaining capacity of battery to mark component based on the received,
And corresponding operation is executed according to identified current remaining capacity.
Illustratively, the voltage range of existing battery of electric bicycle respectively include: 21V~27V, 31V~41V, 41V
~54V, 51V~68V, 54V~72V and 61V~81V etc..By taking cell voltage is 21V~27V as an example, if obtaining the current of battery
Voltage is 21.8V, it is assumed that the electricity determined according to the corresponding relationship of the battery current voltage and the battery current remaining capacity
The current remaining capacity in pond is 25%, if the residual capacity of pre-set battery and the voltage signal to target component output
Duty ratio it is equal, then the duty ratio for the voltage signal that corresponding battery is exported to the target component should be 25%, if default
Time cycle is set as 1ms, and high level setting value is set as 5V, and low level is set as 0V, then battery turns current voltage 21.8V
It is changed to 5V, and controls output to duration of the 5V voltage signal in preset period of time of electricity display instrument and is
0.25ms, electricity display instrument are calculated according to duration of the 5V level received in preset period of time and are accounted for accordingly
Empty ratio, the duty ratio of voltage signal and default correspondence relationship information determine that the current remaining capacity of battery is based on the received
25%, and by the current remaining capacity of quantity display instrument board instruction battery, with for reference.
Illustratively, Fig. 5 is the waveform diagram that corresponding voltage signal is exported to target component, as shown in figure 5, X-axis
Indicate the time, Y-axis indicates that the voltage signal exported to target component, T indicate a time cycle, and 2T indicates two weeks time
Phase, high level indicate significant level, and low level indicates that inactive level, a indicate that significant level continues within the time cycle
Time, if duty ratio is n, then according to Fig. 5, the calculation formula of duty ratio n are as follows:
After exporting corresponding voltage signal to target component according to the duration control battery determined in step 203, mesh
Mark component can calculate the current remaining capacity of battery according to the voltage signal and above-mentioned formula (1) received.
The indicating means of battery remaining power provided in this embodiment is believed according to current remaining capacity and default corresponding relationship
Breath determines the duty ratio of the voltage signal to export to target component, determines battery in predetermined period according to identified duty ratio
The interior duration to target component output high level, and answered according to control of above-mentioned duration battery to target component output phase
Voltage signal.The embodiment of the present invention can be realized different battery capacities or put with difference by using above-mentioned technical proposal
Matching between the battery of level platform and identical target component, i.e. multiple battery can be matched with identical target component, be improved
The service performance of vehicle, and can according to different residual capacity pointing accuracy demands, the residual capacity of battery is arranged
With the corresponding relationship of the duty ratio of the voltage signal exported to the target component, target component is obtained high-precision
Battery remaining power information is precisely shown by related objective component, with for reference, to greatly improve user's
Usage experience, and can effectively avoid indicating as remaining battery capacity it is inaccurate and caused by overcharge or the problems such as power shortage, extend electricity
The service life in pond.
Further, it is improved using technical solution provided in an embodiment of the present invention is corresponding to target component progress to battery,
When battery and target component are carried out mass assembling, the matching limitation between battery and target component can be eliminated, is improved
The flexibility being used cooperatively between battery and target component, and can be improved the versatility of battery and target component.
Optionally, the maximum value of the voltage signal exported to target component is lower than the minimum operating voltage of battery.
Illustratively, if the operating voltage range of battery is 21V~26V, the voltage exported to the target component is believed
Number maximum value should be less than 21V, such as the maximum value can be 5V.It, will be electric using technical solution provided in an embodiment of the present invention
The operating voltage in pond is converted to lower voltage output, can be realized by decompression converting circuit, and circuit design is simple, and cost
It is lower.Also, in the prior art, the current voltage of battery is exported to display instrument, need to be to voltage by handling, it can
For the single-chip microcontroller power supply in display instrument, using technical solution provided in an embodiment of the present invention, the battery after obtained conversion is defeated
Voltage signal out can be directly used for powering for the single-chip microcontroller in display instrument, so that the circuit control process in display instrument
It is simpler.
Optionally, the current remaining capacity of above-mentioned acquisition battery may include: the current voltage for obtaining battery；According to electricity
The current voltage in pond determines the current remaining capacity of battery.
Typically, there are two types of general to the method for battery progress remaining capacity monitoring, one is the electricity based on voltage
Monitoring, existing certain corresponding relationship between the voltage and battery dump energy of battery, when battery dump energy variation, electricity
The voltage in pond can also change；Another kind is the electric quantity monitoring based on Coulomb meter method, by the total current for flowing in and out battery
It is integrated, obtained net charges are residual capacity.By above two electric quantity monitoring method, cell voltage can be obtained
With the corresponding relationship of battery remaining power, so, the current voltage of battery is obtained, according to cell voltage and battery remaining power
Corresponding relationship can determine the current remaining capacity of battery.
It should be noted that the corresponding relationship of cell voltage and battery remaining power is not linear, the corresponding relationship
It is related with the discharge platform of battery.The discharge platform of battery, refer to battery electric discharge when, the voltage change conditions of battery.Battery
Material it is different, physical structure is different, and the influence of environment temperature is different, the circulation that the discharge current difference and battery of battery use
The factors such as number difference can all influence the discharge platform of battery, so that different batteries has different voltage and remaining battery
The corresponding relationship of capacity.Therefore, for electric vehicle replace battery when, it is understood that there may be due to replacement after battery voltage with
Corresponding relationship between battery remaining power is different from former battery, and target component is caused to obtain the current of the battery after replacement
After voltage value, accurate battery remaining power information cannot be obtained according to the current voltage value of the battery after replacement.For example, former
For battery (A size battery) when voltage is 48V, practical corresponding capacity is 50%, and target component is currently electric in acquisition battery
Pressure will be considered that battery current remaining capacity is 50% when being 48V, and after more renewing battery (B battery), B battery is in cell voltage
When 48V, practical corresponding capacity is only 30%, if target component, which obtains when battery current voltage is 48V, still believes that battery is worked as
Preceding residual capacity is 50%, then will appear mistake.So the target component in existing scheme is directly according to battery current voltage value
Come determine the mode of the residual capacity of battery be it is of problems, the matching of battery and target component is poor.
In the embodiment of the present invention, determine the correlation step of the current remaining capacity of battery by electricity according to the current voltage of battery
Pond side executes, and target component no longer needs to determine corresponding residual capacity according to cell voltage, avoids because of replacement electricity
The problem of the difference of matching brought by pond.Also, battery side more understand the attributes such as itself material and physical structure and
The current remaining capacity of oneself can be determined more accurately out in working condition.
Embodiment three
Fig. 3 is a kind of instruction device structural schematic diagram for battery remaining power that the embodiment of the present invention three provides, the device
It can be implemented by software and/or hardware, can indicate the residual capacity of battery by executing the indicating means of battery remaining power.Ginseng
See Fig. 3, the instruction device for the battery remaining power that the embodiment of the present invention three provides may include: procurement of reserve capacity module 301, duty
Than determining module 302 and voltage output module 303.
Wherein, procurement of reserve capacity module 301, for obtaining the current remaining capacity of battery；
Duty cycle determination module 302, for being determined according to current remaining capacity and default correspondence relationship information to target
The duty ratio of the voltage signal of component output, wherein default correspondence relationship information includes the residual capacity of pre-set battery
With the correspondence relationship information of the duty ratio of the voltage signal exported to target component；
Voltage output module 303 exports corresponding electricity to target component for controlling battery according to identified duty ratio
Signal is pressed, to indicate that the duty ratio of voltage signal and default correspondence relationship information determine battery to target component based on the received
Current remaining capacity, and according to identified current remaining capacity execute corresponding operation.
The instruction device of battery remaining power provided in an embodiment of the present invention, so that battery and needs hold according to remaining battery
Amount, which executes, has good matching between the associated components of different operation, the associated components in system can be according to the electricity of battery
It presses the duty ratio of signal to obtain accurate battery remaining power, and executes corresponding operation, so that the service performance of vehicle is improved,
The usage experience of user is improved, and extends the service life of battery.
On the basis of the above embodiments, above-mentioned procurement of reserve capacity module 301 includes:
Voltage acquisition unit, for obtaining the current voltage of battery；
Capacity determination unit determines the current remaining capacity of battery for the current voltage according to battery.
On the basis of the above embodiments, above-mentioned voltage output module 303 includes:
Time determination unit, for determining that battery exports in predetermined period to target component according to identified duty ratio
The duration of high level；
Voltage output unit exports corresponding voltage signal to target component for controlling battery according to the duration, with
Indicate that the duty ratio of voltage signal and default correspondence relationship information determine the current surplus of battery to target component based on the received
Covolume amount, and corresponding operation is executed according to identified current remaining capacity, wherein the duty of received voltage signal
Than the ratio of the duration of the duration of high level and predetermined period that are detected in predetermined period for target component.
On the basis of the above embodiments, battery and target component are located in electric vehicle, and target component includes that electricity is shown
Instrument and/or controller.
On the basis of the above embodiments, current remaining capacity is that the current residual electricity value of battery accounts for the total capacity of battery
The percentage of value；The residual capacity and the voltage to target component output that default correspondence relationship information includes pre-set battery
The relation of equality of the duty ratio of signal.
On the basis of the above embodiments, the maximum value of the voltage signal exported to target component is lower than the minimum work of battery
Make voltage.
Example IV
Fig. 4 is a kind of instruction system structure diagram for battery remaining power that the embodiment of the present invention four provides, such as Fig. 4 institute
Show, the system comprises battery 401 and target component 402, the battery 401 includes battery described in any embodiment of that present invention
The instruction device of residual capacity, the target component 402 is for the duty ratio of voltage signal based on the received and described pre-
If correspondence relationship information determines the current remaining capacity of battery, and executes corresponding behaviour according to identified current remaining capacity
Make.
The instruction system of battery remaining power provided in an embodiment of the present invention, so that battery and needs hold according to remaining battery
Amount, which executes, has good matching between the associated components of different operation, the associated components in system can be according to the electricity of battery
It presses the duty ratio of signal to obtain accurate battery remaining power information, and executes corresponding operation, to improve the use of vehicle
Performance, improves the usage experience of user, and is able to extend the service life of battery.
On the basis of the above embodiments, the instruction system of battery remaining power is built-in in electric vehicle, target component
It may include electricity display instrument and/or controller.
The instruction device and system of battery remaining power provided in an embodiment of the present invention, are mentioned with any embodiment of that present invention
The indicating means of the battery remaining power of confession belongs to same inventive concept, and battery provided by any embodiment of the invention can be performed
The indicating means of residual capacity has the corresponding functional module of indicating means and beneficial effect for executing battery remaining power.Not
The technical detail of detailed description in the present embodiment, reference can be made to the instruction for the battery remaining power that any embodiment of that present invention provides
Method.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (8)
1. a kind of indicating means of battery remaining power characterized by comprising
Obtain the current remaining capacity of battery；
Accounting for for the voltage signal to export to target component is determined according to the current remaining capacity and default correspondence relationship information
Empty ratio, wherein the default correspondence relationship information include pre-set battery residual capacity with it is defeated to the target component
The correspondence relationship information of the duty ratio of voltage signal out；
Battery is controlled according to identified duty ratio and exports corresponding voltage signal to the target component, to indicate the target
The duty ratio of voltage signal and the default correspondence relationship information determine that the current residual of battery is held to component based on the received
Amount, and corresponding operation is executed according to identified current remaining capacity；
Wherein, battery is controlled according to identified duty ratio and exports corresponding voltage signal to the target component, to indicate
Stating target component, the duty ratio of voltage signal and the default correspondence relationship information determine the current of battery based on the received
Residual capacity, and corresponding operation is executed according to identified current remaining capacity, comprising:
Determine battery in predetermined period to the duration of target component output high level according to identified duty ratio；
Battery is controlled according to the duration and exports corresponding voltage signal to the target component, to indicate the target portion
The duty ratio of voltage signal and the default correspondence relationship information determine the current remaining capacity of battery to part based on the received,
And corresponding operation is executed according to identified current remaining capacity, wherein the duty ratio of received voltage signal is institute
State the ratio of the duration for the high level that target component detects in the predetermined period and the duration of the predetermined period.
2. the method according to claim 1, wherein the current remaining capacity for obtaining battery, comprising:
Obtain the current voltage of battery；
The current remaining capacity of battery is determined according to the current voltage of the battery.
3. the method according to claim 1, wherein the battery and the target component are located in electric vehicle,
The target component includes electricity display instrument and/or controller.
4. the method according to claim 1, wherein
The current remaining capacity is the percentage that the current residual electricity value of the battery accounts for the total capacity value of the battery；
The residual capacity and the electricity to target component output that the default correspondence relationship information includes pre-set battery
Press the relation of equality of the duty ratio of signal.
5. a kind of instruction device of battery remaining power characterized by comprising
Procurement of reserve capacity module, for obtaining the current remaining capacity of battery；
Duty cycle determination module, for being determined according to the current remaining capacity and default correspondence relationship information to target component
The duty ratio of the voltage signal of output, wherein the default correspondence relationship information includes the residual capacity of pre-set battery
With the correspondence relationship information of the duty ratio of the voltage signal exported to the target component；
Voltage output module exports corresponding voltage letter to the target component for controlling battery according to identified duty ratio
Number, to indicate that the duty ratio of voltage signal and the default correspondence relationship information determine the target component based on the received
The current remaining capacity of battery, and corresponding operation is executed according to identified current remaining capacity；
Wherein, the voltage output module includes:
Time determination unit, for determining that battery exports in predetermined period to the target component according to identified duty ratio
The duration of high level；
Voltage output unit exports corresponding voltage letter to the target component for controlling battery according to the duration
Number, to indicate that the duty ratio of voltage signal and the default correspondence relationship information determine the target component based on the received
The current remaining capacity of battery, and corresponding operation is executed according to identified current remaining capacity, wherein received electricity
The duty ratio of pressure signal be duration of high level for being detected in the predetermined period of the target component with it is described pre-
If the ratio of the duration in period.
6. device according to claim 5, which is characterized in that
The current remaining capacity is the percentage that the current residual electricity value of the battery accounts for the total capacity value of the battery；
The residual capacity and the electricity to target component output that the default correspondence relationship information includes pre-set battery
Press the relation of equality of the duty ratio of signal.
7. a kind of instruction system of battery remaining power, which is characterized in that including battery and target component；
The instruction device just like battery remaining power described in claim 5 or 6 is integrated in the battery；
The target component determines the current remaining capacity of battery, and root for the duty ratio of voltage signal based on the received
Corresponding operation is executed according to identified current remaining capacity.
8. system according to claim 7, which is characterized in that the system is built in electric vehicle, the target component
Including electricity display instrument and/or controller.
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| CN201610891379.9A CN106291389B (en) | 2016-10-12 | 2016-10-12 | A kind of indicating means of battery remaining power, apparatus and system |
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| CN102170733A (en) * | 2011-05-05 | 2011-08-31 | 深圳市银盾科技开发有限公司 | Large power LED numerically controlled lighting method |
| CN102778650A (en) * | 2011-05-11 | 2012-11-14 | 本田技研工业株式会社 | Battery remaining estimating device of electric vehicle |
| CN103065531A (en) * | 2013-01-05 | 2013-04-24 | 山西省电力公司大同供电分公司 | Automatic measuring device and measuring method of elementary charge and electric quantity |
| CN105223516A (en) * | 2015-10-20 | 2016-01-06 | 卧龙电气集团股份有限公司 | A kind of electric quantity of lithium battery analog voltage output unit |
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| CN102170733A (en) * | 2011-05-05 | 2011-08-31 | 深圳市银盾科技开发有限公司 | Large power LED numerically controlled lighting method |
| CN102778650A (en) * | 2011-05-11 | 2012-11-14 | 本田技研工业株式会社 | Battery remaining estimating device of electric vehicle |
| CN103065531A (en) * | 2013-01-05 | 2013-04-24 | 山西省电力公司大同供电分公司 | Automatic measuring device and measuring method of elementary charge and electric quantity |
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Effective date of registration: 20211213 Address after: 476000 intersection of Fushang Avenue and Yingtian Road, Huashang International Industrial Park, Shangqiu Economic Development Zone, Henan Province Patentee after: HENAN AIMA VEHICLE INDUSTRY CO.,LTD. Address before: 301600 No.5, Emma Road, South District, Jinghai Economic Development Zone, Jinghai County, Tianjin Patentee before: AIMA TECHNOLOGY GROUP Co.,Ltd. |