CN107554330A - A kind of batteries of electric automobile energy management method - Google Patents
A kind of batteries of electric automobile energy management method Download PDFInfo
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- CN107554330A CN107554330A CN201710744480.6A CN201710744480A CN107554330A CN 107554330 A CN107554330 A CN 107554330A CN 201710744480 A CN201710744480 A CN 201710744480A CN 107554330 A CN107554330 A CN 107554330A
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- battery
- electric automobile
- power consumption
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The present invention relates to electric vehicle engineering field, embodiment specifically discloses a kind of batteries of electric automobile energy management method.The battery energy management method that the application proposes, by the dump energy for obtaining battery, obtain future travel power consumption, so as to draw remaining driving mileage, and the method that distance travelled is output to display device, solve existing electric automobile and do not show remaining driving mileage, the problem of making driver can not accurately be estimated to the energy content of battery, the method that the application proposes facilitates accurate understanding of the driver to electric automobile remaining power energy, preferably to arrange to drive stroke.
Description
Technical field
The present invention relates to electric vehicle engineering field, and in particular to a kind of batteries of electric automobile energy management method.
Background technology
In electric automobile field, there are many electric automobiles to have calculating and display to the state-of-charge (i.e. SOC) of battery, but
It is but to rarely have this Functional Design for display remaining driving mileage, and estimation of the industry to Remainder Range of Electric Vehicle does not have still
Generally acknowledged method.In reality in use, the most concerned exactly remaining mileage of driver, if can not charge on time, automobile will
It is possible to midway out of power and can not travels.If showing remaining mileage, driver's can more reasonably selects travel route,
Timely charged to automobile, reduce the probability that midway can not travel.
The content of the invention
In view of this, the application provides a kind of batteries of electric automobile energy management method, solves above-mentioned problem.
To solve above technical problem, technical scheme provided by the invention is a kind of batteries of electric automobile energy management side
Method, including：Obtain battery dump energy；Obtain future travel power consumption；Calculating remaining driving mileage, the remaining driving mileage=
The battery dump energy/future travel power consumption；
The remaining driving mileage is exported to display device.
Preferably, the method for obtaining battery dump energy, including：Obtain electric current, total voltage, the monomer voltage of battery
And monomer temperature；Battery life is calculated according to the electric current, the total voltage, the monomer voltage and the monomer temperature
Information, the battery life information include battery capacity and the internal resistance of cell；According to default dump energy parameter list, acquisition and institute
State electric current, the total voltage, the monomer voltage, the monomer temperature and dump energy corresponding to the battery life.
Preferably, it is described to be calculated according to the electric current, the total voltage, the monomer voltage and the monomer temperature
After battery life information step, in addition to：According to default pressure-volume rate curve, the battery capacity is modified.
Preferably, it is described according to default pressure-volume rate curve, the method being modified to the battery capacity, including：
The battery capacity of estimation is obtained according to the pressure-volume rate curve；To the battery capacity of the estimation and it is calculated
Battery capacity is weighted processing and obtains revised battery capacity.
Preferably, the method for obtaining future travel power consumption, including：Obtain the current driving model of electric automobile；Root
Every kilometer of power consumption table is corresponded to according to default each driving model, obtains the theoretical average current drain under current driving model；Obtain electronic
Average every kilometer of power consumption of automobile N kilometers of preceding traveling herein, obtains history average current drain, and N is more than or equal to 1；To described
Theoretical average current drain and the history average current drain are weighted processing and obtain future travel power consumption.
Preferably, it is described theoretical average current drain and the history average current drain are weighted processing obtain future travel electricity
Consume in step, the theoretical average current drain is identical with the weight of the history average current drain, and computational methods are：Future travel power consumption
=theoretical average current drain * 0.5+ history average current drain 0.5.
Preferably, it is described to obtain electric automobile before this in average every kilometer of power consumption step of N kilometers of traveling, the N
For 10.
Preferably, the calculating remaining driving mileage, the remaining driving mileage=battery dump energy/following row
Power consumption step is sailed to replace with：The calculating remaining driving mileage, the remaining driving mileage=battery dump energy/future
Travel power consumption * 80%.
Preferably, the calculating remaining driving mileage, the remaining driving mileage=battery dump energy/following row
After sailing power consumption step, in addition to：Step is filtered to remaining driving mileage.
Compared with prior art, its advantage describes in detail as follows the application：The battery energy management that the application proposes
Method, by obtaining the dump energy of battery, future travel power consumption is obtained, so as to draw remaining driving mileage, and by traveling
The method that journey is output to display device, solve existing electric automobile and do not show remaining driving mileage, make driver right
The problem of energy content of battery is accurately estimated, accurate understanding of the driver to electric automobile remaining power energy is facilitated, so as to
Preferably arrange to drive stroke.
Brief description of the drawings
Fig. 1 is the flow chart of the batteries of electric automobile energy management method of the embodiment of the present invention；
Fig. 2 is the flow chart of the acquisition battery dump energy method of the embodiment of the present invention；
Fig. 3 is the flow chart of the acquisition future travel power consumption method of the embodiment of the present invention.
Embodiment
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real
Applying example, the present invention is described in further detail.
As shown in figure 1, the present invention provides a kind of batteries of electric automobile energy management method, including：
S01：Obtain battery dump energy；
S02：Obtain future travel power consumption；
S03：Calculate remaining driving mileage, remaining driving mileage=battery dump energy/future travel power consumption；
S04：Remaining driving mileage is exported to display device.
Wherein, due to being likely to occur some other abnormal conditions during traveling, thus calculate remaining driving mileage when
Wait, it may be considered that some losses, therefore the formula for calculating remaining driving mileage can be, remaining driving mileage=remaining battery electricity
Amount/future travel power consumption * 80%.
Wherein, remaining driving mileage, remaining driving mileage=battery dump energy/future travel power consumption step are being calculated
Afterwards, in addition to：Step is filtered to remaining driving mileage.Calculate the remaining mileage of electric automobile, after filtering after, then send out
Give instrument to show, avoid because display error caused by signal interference or display are abnormal.
As shown in Fig. 2 the method for battery dump energy is obtained, including：
S11：Obtain electric current, total voltage, monomer voltage and the monomer temperature of battery.
Specifically, current sensor detection electric current can be used, total voltage and monomer voltage are detected using voltage sensor,
Utilize temperature sensor measurement monomer temperature.
S12：Battery life information, battery life letter are calculated according to electric current, total voltage, monomer voltage and monomer temperature
Breath includes battery capacity and the internal resistance of cell.
Wherein, the battery life information includes battery capacity and the internal resistance of cell.Battery capacity refers to that battery is current
Residual capacity.
Specifically, bring electric current, total voltage, monomer voltage and monomer temperature into thevenin equivalent circuit formula and Kalman
Battery life information is obtained in filtering estimating algorithm.In addition electric current, total voltage, monomer voltage and monomer temperature can also be brought into
In thevenin equivalent circuit formula and Long Beige algorithms, battery life information is obtained.
Wherein, thevenin equivalent circuit formula be V (k)=Voc (k)-R0 (k) I (k)-Vp (k) and
S13：According to default dump energy parameter list, obtain and electric current, total voltage, monomer voltage, monomer temperature and electricity
First dump energy corresponding to the life-span of pond.
Wherein, dump energy parameter list is to count to obtain by test of many times, influences some factors of dump energy parameter list
Mainly there are the use environment of battery, the applying working condition etc. of battery.
Here, after battery life information step being calculated according to electric current, total voltage, monomer voltage and monomer temperature, also
Including：According to default pressure-volume rate curve, battery capacity is modified.
Wherein, pressure-volume rate curve refers to voltage and a kind of curve map of capacity relationship, wherein, what transverse axis represented is to hold
Amount, what the longitudinal axis represented is the ratio between voltage and capacity.
Here, according to default pressure-volume rate curve, the method being modified to battery capacity, including：It is bent according to pressure-volume rate
Line obtains the battery capacity of estimation；Processing is weighted to the battery capacity of estimation with the battery capacity being calculated to be corrected
Battery capacity afterwards.
Wherein, weight coefficient can be set according to specific battery operating regime.According to pressure-volume rate curve to battery
Capacity is modified, and can more accurately reflect the capacity of battery.
As shown in figure 3, the method for future travel power consumption is obtained, including：
S21：Obtain the current driving model of electric automobile；
Wherein, the current driving model of electric automobile, common driving model and sport drive mode can be divided into.It is more complicated
, city driving pattern, country driving pattern and scorch pattern can be divided into.
S22：Every kilometer of power consumption table is corresponded to according to default each driving model, the theory obtained under current driving model is averaged
Power consumption.
Wherein, the theoretical average current drain under current driving model, it is being averaged under each driving model drawn according to experiment
Power consumption.
S23：Obtain average every kilometer of power consumption of electric automobile N kilometers of preceding traveling herein, acquisition history average current drain, N
More than or equal to 1.
Wherein, add history average current drain to be calculated, can more accurately draw future travel power consumption.
S24：Processing is weighted to theoretical average current drain and history average current drain and obtains future travel power consumption.
Wherein, the estimation to future travel power consumption can be based on average energy consumption method, i.e., according to empirical theory average current drain and
Weighted calculation is drawn history 10km average current drain again, and theoretical average current drain is identical with the weight of history average current drain, calculating side
Method is：Future travel power consumption=theoretical average current drain * 0.5+ history average current drain 0.5.Wherein, history operating range here can
Think 10 kilometers, be advantageous to obtain the estimated value of more accurate future travel power consumption.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (9)
- A kind of 1. batteries of electric automobile energy management method, it is characterised in that including：Obtain battery dump energy；Obtain future travel power consumption；Calculate remaining driving mileage, the remaining driving mileage=battery dump energy/future travel power consumption；The remaining driving mileage is exported to display device.
- 2. batteries of electric automobile energy management method according to claim 1, it is characterised in that the acquisition remaining battery The method of electricity, including：Obtain electric current, total voltage, monomer voltage and the monomer temperature of battery；Battery life information is calculated according to the electric current, the total voltage, the monomer voltage and the monomer temperature, institute Stating battery life information includes battery capacity and the internal resistance of cell；According to default dump energy parameter list, obtain and the electric current, the total voltage, the monomer voltage, the monomer Dump energy corresponding to temperature and the battery life.
- 3. batteries of electric automobile energy management method according to claim 2, it is characterised in that described according to the electricity After battery life information step is calculated in stream, the total voltage, the monomer voltage and the monomer temperature, in addition to：Root According to default pressure-volume rate curve, the battery capacity is modified.
- 4. batteries of electric automobile energy management method according to claim 3, it is characterised in that described according to default pressure Capacity rate curve, the method being modified to the battery capacity, including：The battery capacity of estimation is obtained according to the pressure-volume rate curve；Are weighted by processing and obtains revised battery capacity for the battery capacity of the estimation and the battery capacity being calculated.
- 5. batteries of electric automobile energy management method according to claim 1, it is characterised in that the acquisition future travel The method of power consumption, including：Obtain the current driving model of electric automobile；Every kilometer of power consumption table is corresponded to according to default each driving model, obtains the theoretical average current drain under current driving model；Obtain average every kilometer of power consumption of electric automobile N kilometers of preceding traveling herein, acquisition history average current drain, N be more than or Equal to 1；Processing is weighted to the theoretical average current drain and the history average current drain and obtains future travel power consumption.
- 6. batteries of electric automobile energy management method according to claim 5, it is characterised in that described to the average electricity of theory Consumption and the history average current drain are weighted processing and obtained in future travel power consumption step, the theoretical average current drain and described The weight of history average current drain is identical, and computational methods are：Future travel power consumption=theoretical average current drain * 0.5+ history average current drains 0.5。
- 7. batteries of electric automobile energy management method according to claim 5, it is characterised in that the acquisition electric automobile Before this in average every kilometer of power consumption step of N kilometers of traveling, the N is 10.
- 8. batteries of electric automobile energy management method according to claim 1, it is characterised in that described to calculate remaining traveling Mileage, the remaining driving mileage=battery dump energy/future travel power consumption step replace with：The calculating remaining rows Sail mileage, the remaining driving mileage=battery dump energy/future travel power consumption* 80%.
- 9. batteries of electric automobile energy management method according to claim 1, it is characterised in that described to calculate remaining traveling Mileage, after the remaining driving mileage=battery dump energy/future travel power consumption step, in addition to：Residue is travelled Mileage is filtered step.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422060A (en) * | 2019-08-05 | 2019-11-08 | 昆山宝创新能源科技有限公司 | Electric car and its charging method and device |
| CN111098753A (en) * | 2018-10-26 | 2020-05-05 | 比亚迪股份有限公司 | Electric vehicle driving mileage estimation method and device and electric vehicle |
| CN111398828A (en) * | 2020-04-16 | 2020-07-10 | 青岛理工大学 | Method for estimating remaining electric quantity and remaining driving mileage of electric automobile |
| CN111645566A (en) * | 2020-01-08 | 2020-09-11 | 摩登汽车有限公司 | Method and device for calculating endurance mileage of electric vehicle, vehicle control unit and electric vehicle |
| CN112078430A (en) * | 2019-06-14 | 2020-12-15 | 北汽福田汽车股份有限公司 | Electric vehicle driving mileage estimation method and device and electric vehicle |
| CN112101738A (en) * | 2020-08-20 | 2020-12-18 | 北京骑胜科技有限公司 | Task information generation method and device, electronic equipment and readable storage medium |
| CN112477635A (en) * | 2020-11-30 | 2021-03-12 | 浙江吉利控股集团有限公司 | Method, device and equipment for supplementing electric quantity of battery and storage medium |
| CN112706617A (en) * | 2021-01-13 | 2021-04-27 | 奇瑞新能源汽车股份有限公司 | Method for displaying endurance mileage of electric automobile |
| CN115343641A (en) * | 2022-10-18 | 2022-11-15 | 广东好太太智能家居有限公司 | Method, apparatus, device, medium and program product for determining battery level |
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| CN112078430B (en) * | 2019-06-14 | 2022-03-11 | 北汽福田汽车股份有限公司 | Electric vehicle driving mileage estimation method and device and electric vehicle |
| CN112078430A (en) * | 2019-06-14 | 2020-12-15 | 北汽福田汽车股份有限公司 | Electric vehicle driving mileage estimation method and device and electric vehicle |
| CN110422060A (en) * | 2019-08-05 | 2019-11-08 | 昆山宝创新能源科技有限公司 | Electric car and its charging method and device |
| CN111645566A (en) * | 2020-01-08 | 2020-09-11 | 摩登汽车有限公司 | Method and device for calculating endurance mileage of electric vehicle, vehicle control unit and electric vehicle |
| CN111645566B (en) * | 2020-01-08 | 2022-05-17 | 摩登汽车有限公司 | Method and device for calculating endurance mileage of electric vehicle, vehicle control unit and electric vehicle |
| CN111398828A (en) * | 2020-04-16 | 2020-07-10 | 青岛理工大学 | Method for estimating remaining electric quantity and remaining driving mileage of electric automobile |
| CN112101738A (en) * | 2020-08-20 | 2020-12-18 | 北京骑胜科技有限公司 | Task information generation method and device, electronic equipment and readable storage medium |
| CN112477635A (en) * | 2020-11-30 | 2021-03-12 | 浙江吉利控股集团有限公司 | Method, device and equipment for supplementing electric quantity of battery and storage medium |
| CN112706617A (en) * | 2021-01-13 | 2021-04-27 | 奇瑞新能源汽车股份有限公司 | Method for displaying endurance mileage of electric automobile |
| CN115343641A (en) * | 2022-10-18 | 2022-11-15 | 广东好太太智能家居有限公司 | Method, apparatus, device, medium and program product for determining battery level |
| CN115343641B (en) * | 2022-10-18 | 2023-05-26 | 广东好太太智能家居有限公司 | Method, apparatus, device, medium and program product for determining battery charge |
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Address after: 641300 Sichuan Ziyang City, Ziyang City, Yanjiang District, Chengnan industrial centralized development area, modern Avenue 1 Applicant after: Hyundai commercial vehicle (China) Co., Ltd Address before: 641300 Sichuan Ziyang City, Ziyang City, Yanjiang District, Chengnan industrial centralized development area, modern Avenue 1 Applicant before: SICHUAN HYUNDAI MOTOR Co.,Ltd. |
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