CN104973068B - The average kilometer method for estimating power consumption and device of pure electric vehicle pond group - Google Patents
The average kilometer method for estimating power consumption and device of pure electric vehicle pond group Download PDFInfo
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- CN104973068B CN104973068B CN201510404536.4A CN201510404536A CN104973068B CN 104973068 B CN104973068 B CN 104973068B CN 201510404536 A CN201510404536 A CN 201510404536A CN 104973068 B CN104973068 B CN 104973068B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/12—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to parameters of the vehicle itself, e.g. tyre models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/24—Energy storage means
- B60W2710/242—Energy storage means for electrical energy
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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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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mathematical Physics (AREA)
- Air-Conditioning For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
This application discloses the average kilometer method for estimating power consumption and device of pure electric vehicle pond group, wherein methods described includes step：Receive the cell voltage U transmitted by battery controllerbattWith battery current IbattSignal, the speed v signals transmitted by abs controller, the automobile gear level signal transmitted by gearshift, and, the compressor of air conditioner ACCM power Ps transmitted by HVAC systemACCMSignal, warm air system PTC power PsPTCSignal, HVAC working state signals；Obtain the average kilometer traveling energy consumption e of pure electric automobileveh, average kilometer energy consumption changing value e caused by gear switchgear, and, the average kilometer energy consumption e of HVAC systemhvac；Obtain vehicle average energy consumption.The energy consumption change caused by the ON/OFF of HVAC system and the switching of gear is individually calculated due to the embodiment of the present invention, it is possible to which the influence to remaining mileage instantaneously embodies, and then can obtain the average kilometer energy consumption of accurate pure electric vehicle pond group.
Description
Technical field
The present invention relates to field of automobile control, more particularly to a kind of average kilometer energy consumption of pure electric vehicle pond group
Evaluation method and device.
Background technology
Electric automobile includes hybrid vehicle and pure electric automobile；Wherein, pure electric automobile regard electric power as unique drive
Power.
In actual applications, the driver of pure electric automobile needs to know remaining mileage, i.e. need to know pure electric automobile
The distance that can also be travelled, so as to timely be charged to pure electric automobile, or selects more reasonably drive manner and traveling
Route, to reduce pure electric automobile because the probability that can not be travelled that not enough power supply is caused.
In the art, the estimation of remaining mileage is typically all the remaining utilisable energy and pure electric automobile according to battery pack
Average kilometer energy consumption obtain, specifically, the remaining mileage that pure electric automobile can also be travelled can for the residue of battery pack
With energy and the ratio of the average kilometer energy consumption of vehicle.So, when calculating remaining mileage, it is necessary first to estimate battery pack respectively
Remaining utilisable energy and vehicle average kilometer energy consumption.
In the prior art, the general mode of estimating for the average kilometer energy consumption of battery pack is：
Using the operating range in the vehicle consumed energy divided by setting time in setting time (or distance), then to multiple
The power consumption values at time point (range points) carry out average value processing or filtering process etc..
Inventor has found that due at least there is following defect in the prior art：
Because the degree of accuracy of the estimation result of the average kilometer energy consumption of battery pack is not high, so as to cause the estimation of remaining mileage
The degree of accuracy is poor.
The content of the invention
The technical problems to be solved by the invention are the standards of the estimation result for the average kilometer energy consumption for how improving battery pack
Exactness, specifically：
The embodiments of the invention provide a kind of average kilometer method for estimating power consumption of pure electric vehicle pond group, including step
Suddenly：
Cell voltage U transmitted by S11, reception battery controllerbattWith battery current IbattSignal, abs controller is sent out
The speed v signals sent, the automobile gear level signal transmitted by gearshift, and, the compressor of air conditioner transmitted by HVAC system
(ACCM) power PACCMSignal, warm air system (PTC) power PPTCSignal, HVAC working state signals；
S12, the average kilometer traveling energy consumption e for obtaining the pure electric automobileveh, average kilometer energy caused by gear switch
Consume changing value egear, and, the average kilometer energy consumption e of HVAC systemhvac；
S13, vehicle average energy consumption e obtained according to formula (1)avrg；The formula (1) includes：
eavrg=eveh+egear+ehvac。
It is preferred that, in embodiments of the present invention, the average kilometer traveling energy consumption e for obtaining the pure electric automobileveh,
Including：
S21, according to default sample frequency, set sampling time point；
S22, in each sampling time point calculate the accumulative distance travelled of the pure electric automobile in present sample time point k
S (k), and accumulative energy consumption e of the pure electric automobile in present sample time point k is obtained according to formula (2)cns(k)；The public affairs
Formula (2) includes：
ecns(k)=ecns(k-1)+(Pbatt(k)-PACCM(k)-PPTC(k))×Δt；
Wherein, the k is used to represent in multiple sampling time points of the present sample time point in default setting mileage
Sequence number, the k-1 is the upper sampling time point at k time points, and the Δ t is the sampling time between two sampling time points
Section；The Pbatt(k) for by the cell voltage U at kth momentbatt(k) with battery current Ibatt(k) kth moment battery is calculated
Power output Pbatt(k)；The PACCM(k) it is the ACCM power at kth moment；The PPTC(k) it is the PTC power at kth moment；
S23, circulation perform step S22, when the accumulative distance travelled S (k) reaches the setting fare register, calculate current
Set the average kilometer energy consumption e of mileage in mileage nset(n)；The formula (3) includes：
eset(n)=ecns(k)/Sset；
Wherein, the n is used to represent sequence number of the current setting mileage in multiple setting mileages；
S24, by formula (4) to the average kilometer power consumption values eset(n) " filtering combination nonlinear feedback " place is carried out
Reason, the average kilometer traveling energy consumption e of the vehicle of n setting mileage output before obtainingveh(n)；Formula (4) formula includes：
eveh(n)=eset(n)×a+eveh(n-1)×b+ecorrect；
Wherein, a is n-th of setting mileage truly averagely kilometer energy consumption eset(n) weight coefficient；The b be n-th-
The average kilometer energy consumption e of vehicle of 1 setting mileage outputveh(n-1) weight coefficient；The span of a is 0<a≤
0.1, the b span are 0.9≤b<1, and a and b relation meets a+b=1；The ecorrectFor energy consumption correction,
The ecorrectAccording to the eset(n) with the eveh(n-1) increase and decrease of the difference between and increased and decreased accordingly.
It is preferred that, in embodiments of the present invention, the average kilometer energy of the HVAC system for obtaining the pure electric automobile
Consume ehvac, including：
According to formula (5) ehvac=Phvac/vavrg, obtain the average kilometer energy consumption of the HVAC system of the pure electric automobile
ehvac；
Wherein, the vavrgFor vehicle average speed；The PhvacFor the power output of HVAC system.
It is preferred that, in embodiments of the present invention, the power output P of the HVAC systemhvacAcquisition methods include：
When HVAC working state signals show fault-free, according to formula (6) Phvac=PACCM+PPTCCalculate HVAC system
Power output Phvac；Wherein, the PACCMFor ACCM power；The PPTCFor PTC power；
When HVAC working state signals show failure, the power output P of HVAC systemhvacFor 0.
It is preferred that, in embodiments of the present invention, average kilometer energy consumption changing value e caused by the acquisition gear switchgear,
Including：
The flag bit Flg of preset power shelves switching economic gearDEFor 1 when, kilometer energy consumption drop-out value be setting value eDrvEco；In advance
If economic gear switches the flag bit Flg of power gearEDFor 1 when, kilometer energy consumption rising value be setting value eEcoDrv；
Obtain the flag bit FlgDEValue, and according to formula (7) egear=-eDrvEco*FlgDE+eEcoDrv*FlgEDCalculate
The average kilometer energy consumption changing value e of generationgear。
In the another side of the present invention, a kind of average kilometer Estimation of energy consumption dress of pure electric vehicle pond group is additionally provided
Put, including：
Parameter acquiring unit, for receiving the cell voltage U transmitted by battery controllerbattWith battery current IbattSignal,
Speed v signals transmitted by abs controller, the automobile gear level signal transmitted by gearshift, and, transmitted by HVAC system
Compressor of air conditioner (ACCM) power PACCMSignal, warm air system (PTC) power PPTCSignal, HVAC working state signals；
Classification energy consumption acquiring unit, the average kilometer for obtaining the pure electric automobile travels energy consumption eveh, gear switch
Caused average kilometer energy consumption changing value egear, and, the average kilometer energy consumption e of HVAC systemhvac；
Average energy consumption computing unit, for obtaining vehicle average energy consumption e according to formula (1)avrg；The formula (1) includes：
eavrg=eveh+egear+ehvac。
It is preferred that, in embodiments of the present invention, the classification energy consumption acquiring unit, including：
Sampling time point determining module, for according to default sample frequency, setting sampling time point；
Sampling computing module, for calculating the pure electric automobile in present sample time point k in each sampling time point
Accumulative distance travelled S (k), and the accumulative energy consumption of the pure electric automobile in present sample time point k is obtained according to formula (2)
ecns(k)；The formula (2) includes：
ecns(k)=ecns(k-1)+(Pbatt(k)-PACCM(k)-PPTC(k))×Δt；
Wherein, the k is used to represent in multiple sampling time points of the present sample time point in default setting mileage
Sequence number, the k-1 is the upper sampling time point at k time points, and the Δ t is the sampling time between two sampling time points
Section；The Pbatt(k) for by the cell voltage U at kth momentbatt(k) with battery current Ibatt(k) kth moment battery is calculated
Power output Pbatt(k)；The PACCM(k) it is the ACCM power at kth moment；The PPTC(k) it is the PTC power at kth moment；
Kilometer energy consumption acquisition module is segmented, for reaching the setting fare register when the accumulative distance travelled S (k), meter
Calculate the average kilometer energy consumption e of mileage in current setting mileage nset(n)；The formula (3) includes：
eset(n)=ecns(k)/Sset；
Wherein, the n is used to represent sequence number of the current setting mileage in multiple setting mileages；
Average kilometer traveling energy consumption generation module, for by formula (4) to the average kilometer power consumption values eset(n) enter
Row " filtering combination nonlinear feedback " processing, the average kilometer traveling energy consumption e of the vehicle of n setting mileage output before obtainingveh(n)；
Formula (4) formula includes：
eveh(n)=eset(n)×a+eveh(n-1)×b+ecorrect；
Wherein, a is n-th of setting mileage truly averagely kilometer energy consumption eset(n) weight coefficient；The b be n-th-
The average kilometer energy consumption e of vehicle of 1 setting mileage outputveh(n-1) weight coefficient；The span of a is 0<a≤
0.1, the b span are 0.9≤b<1, and a and b relation meets a+b=1；The ecorrectFor energy consumption correction,
The ecorrectAccording to the eset(n) with the eveh(n-1) increase and decrease of the difference between and increased and decreased accordingly.
It is preferred that, in embodiments of the present invention, the classification energy consumption acquiring unit, including：
HVAC average energy consumption acquisition modules, for according to formula (5) ehvac=Phvac/vavrg, obtain the pure electric automobile
HVAC system average kilometer energy consumption ehvac；
Wherein, the vavrgFor vehicle average speed；The PhvacFor the power output of HVAC system.
It is preferred that, in embodiments of the present invention, the HVAC average energy consumptions acquisition module, including：
The power of HVAC system determines component, for when HVAC working state signals show fault-free, according to formula (6)
Phvac=PACCM+PPTCCalculate the power output P of HVAC systemhvac；Wherein, the PACCMFor ACCM power；The PPTCFor PTC
Power；When HVAC working state signals show failure, the power output P of HVAC system is determinedhvacFor 0.
It is preferred that, in embodiments of the present invention, the classification energy consumption acquiring unit, including：
Correction value setting module, the flag bit Flg for preset power shelves switching economic gearDEFor 1 when, kilometer energy consumption decline
It is worth for setting value eDrvEco；Default economic gear switches the flag bit Flg of power gearEDFor 1 when, kilometer energy consumption rising value be setting value
eEcoDrv；
Energy consumption changing value acquisition module, for obtaining the flag bit FlgDEValue, and according to formula (7) egear=-
eDrvEco*FlgDE+eEcoDrv*FlgEDCalculate the average kilometer energy consumption changing value e of generationgear。
In the embodiment of the present invention, the cell voltage U transmitted by battery controller is being receivedbattWith battery current IbattSignal,
Speed v signals transmitted by abs controller, the automobile gear level signal transmitted by gearshift, and, transmitted by HVAC system
Compressor of air conditioner ACCM power PsACCMSignal, warm air system PTC power PsPTCAfter signal, HVAC working state signals, according to energy consumption
The difference of type, calculates the average kilometer energy consumption of different type energy consumption respectively, i.e. obtain the average kilometer row of electric automobile respectively
Sail energy consumption eveh, average kilometer energy consumption changing value e caused by gear switchgear, and, the average kilometer energy consumption of HVAC system
ehvac, in this manner it is possible to by after different types of average kilometer energy consumption addition calculation, it is possible to obtain pure electric vehicle pond
The average kilometer energy consumption of group.Caused by the ON/OFF of HVAC system and the switching of gear are individually calculated due to the embodiment of the present invention
Energy consumption changes, it is possible to which the influence to remaining mileage instantaneously embodies, and then can obtain accurate pure electric automobile use
The average kilometer energy consumption of battery pack.
Further, in embodiments of the present invention, it can be taken in the average kilometer of calculating vehicle, to the kilometer in setting distance
Energy consumption be filtered and nonlinear feedback processing, the data weighting apart from current time farther out is set to smaller, will apart from work as
Nearer data weighting of preceding moment is set to larger, so as to solve in the prior art due to all historical datas are carried out at average
Energy consumption caused by reason updates slow, it is impossible to the problem of reflecting recent transport condition in time.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
The step of Fig. 1 is the average kilometer method for estimating power consumption of pure electric vehicle pond described herein group is illustrated
Figure；
Fig. 2 is the structural representation of the control system of pure electric automobile described herein；
Fig. 3 shows for the another step of the average kilometer method for estimating power consumption of pure electric vehicle pond described herein group
It is intended to；
Fig. 4 is the structural representation of the average kilometer Estimation of energy consumption device of pure electric vehicle pond described herein group
Figure.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only this
Invent a part of embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art exist
The every other embodiment obtained under the premise of creative work is not made, the scope of protection of the invention is belonged to.
For the degree of accuracy of the estimation result of the average kilometer energy consumption that improves battery pack, the embodiments of the invention provide one kind
The average kilometer method for estimating power consumption of pure electric vehicle pond group, as shown in figure 1, including step：
Cell voltage U transmitted by S11, reception battery controllerbattWith battery current IbattSignal, abs controller is sent out
The speed v signals sent, the automobile gear level signal transmitted by gearshift, and, the compressor of air conditioner transmitted by HVAC system
ACCM power PsACCMSignal, warm air system PTC power PsPTCSignal, HVAC working state signals；
The application of the average kilometer method for estimating power consumption of pure electric vehicle pond group in the embodiment of the present invention is based on
The control system of pure electric automobile, the structural representation of the control system of the pure electric automobile with reference to shown in Fig. 2, control system
The critical piece of system includes entire car controller 01, gearshift 02, battery controller 03, abs controller 04, the and of HVAC system 05
Display unit 06 etc..
In embodiments of the present invention, entire car controller 01 is realized as the data processing equipment of various calculating, i.e. whole
Vehicle controller 01 can carry out calculation process by default various formula or algorithm to the various data of reception, and generation is corresponding
As a result, that is to say, that entire car controller 01 can perform each step in the embodiment of the present invention as executive agent.
In practical application, entire car controller 01 can also receive the battery status information data transmitted by battery controller 03
(including cell voltage, electric current, SOC, temperature etc.), and, the speed information data transmitted by abs controller 04 are received, so that
The remaining utilisable energy and average kilometer power consumption values of battery pack can be calculated；
In addition, abs controller 04 can also receive the automobile gear level information data transmitted by gearshift 02, and,
ACCM/PTC power informations data and working state signal transmitted by HVAC system 05, so as to calculate current vehicle condition for
The influence of average kilometer energy consumption.
Entire car controller 01 can also be calculated pure electronic according to the remaining utilisable energy of battery pack and average kilometer power consumption values
The remaining mileage of automobile, and driver is presented to by display unit 06, it is choosing so as to facilitate driver to make correct judgement
Select suitable traffic route and suitable charging opportunity.
In embodiments of the present invention, first, entire car controller 01 obtains the electricity of the battery pack transmitted by battery controller 03
Cell voltage UbattWith battery current IbattSignal；In addition, entire car controller 01 also obtains the speed v letters transmitted by abs controller 04
Number, the automobile gear level signal transmitted by gearshift 02, and, the compressor of air conditioner ACCM power transmitted by HVAC system 05
PACCMSignal, warm air system PTC power PsPTCSignal, HVAC working state signals.
S12, the average kilometer traveling energy consumption e for obtaining pure electric automobileveh, average kilometer energy consumption caused by gear switch becomes
Change value egear, and, the average kilometer energy consumption e of HVAC systemhvac；
Obtaining cell voltage UbattWith battery current IbattSignal, speed v signals, automobile gear level signal, and,
ACCM power PsACCMSignal, warm air system PTC power PsPTC, just can be with according to these parameters after signal, HVAC working state signals
Progress is follow-up to be calculated, specifically：
In embodiments of the present invention, average kilometer traveling energy consumption evehRefer to be only used for driving after removing various annex consumption
The average kilometer energy consumption of vehicle traveling；Obtain the average kilometer traveling energy consumption e of pure electric automobileveh, can with as shown in figure 3, including
Following steps：
S21, according to default sample frequency, set sampling time point；；
In actual applications, sampling time point can be set by way of preset sample frequency, such as can be to set
Surely a sampling time point is set by every 10 milliseconds, that is to say, that often cross 10 milliseconds and be carried out once in follow-up accumulative traveling
Journey calculates and added up energy consumption calculation.
S22, in each sampling time point calculate the accumulative distance travelled of the pure electric automobile in present sample time point k
S (k), and accumulative energy consumption e of the pure electric automobile in present sample time point k is obtained according to formula (2)cns(k)；The public affairs
Formula (2) includes：
ecns(k)=ecns(k-1)+(Pbatt(k)-PACCM(k)-PPTC(k))×Δt；
Wherein, the k is used to represent in multiple sampling time points of the present sample time point in default setting mileage
Sequence number, the k-1 is the upper sampling time point at k time points, and the Δ t is the sampling time between two sampling time points
Section；The Pbatt(k) for by the cell voltage U at kth momentbatt(k) with battery current Ibatt(k) kth moment battery is calculated
Power output Pbatt(k)；The PACCM(k) it is the ACCM power at kth moment；The PPTC(k) it is the PTC power at kth moment；
In embodiments of the present invention, distance travelled is added up and calculates and add up energy consumption calculation to specifically refer to default set at one
Determine the corresponding calculating of the progress in mileage.
Wherein, add up distance travelled calculating to can be used for judging the average kilometer energy consumption calculation cycle in a default mileage
Interior, whether the operating range of pure electric automobile has reached setting mileage.So that pure electric automobile often to be travelled to 500 meters as default
Exemplified by setting mileage, i.e. when pure electric automobile travels 500 meters, the average public affairs that pure electric automobile finally travels 500 meters are calculated
In energy consumption calculation.Specifically, when the value that accumulative distance travelled S (k) is calculated in k-th of sampling time point has reached 500 meters,
The average kilometer energy consumption calculation of triggering.Specifically, obtaining accumulative distance travelled S (k) mode can be, by the speed v at kth moment
(k) distance travelled at kth moment is calculated with sampling time Δ t, while being summed with the cumulative mileage S (k-1) at k-1 moment, is
The cumulative mileage S (k) at kth moment, calculation formula is：S (k)=S (k-1)+v (k) × Δ t.
In this step, while accumulative distance travelled calculating is carried out, in addition it is also necessary to obtain pure electric automobile in present sample
Time point k accumulative energy consumption ecns(k).Optionally, by formula (2), pure electric automobile can be obtained at present sample time point
K accumulative energy consumption ecns(k)；The formula (2) includes：
ecns(k)=ecns(k-1)+(Pbatt(k)-PACCM(k)-PPTC(k))×Δt；
Wherein, the k is present sample time point, and the k-1 is the upper sampling time point at k time points, and the Δ t is
Sampling time section between two sampling time points；The Pbatt(k) for by the cell voltage U at kth momentbatt(k) with battery electricity
Flow Ibatt(k) the power output P of kth moment battery is calculatedbatt(k)；The PACCM(k) it is the ACCM power at kth moment；Institute
State PPTC(k) it is the PTC power at kth moment；
As seen from the above, by the cell voltage U at kth momentbatt(k) with battery current Ibatt(k) the kth moment is calculated
The power output P of battery packbatt(k) the ACCM power Ps at kth moment, are subtractedACCMAnd PTC power Ps (k)PTC(k), then by kth when
Carve the power output P of battery packbatt(k) energy consumption at kth moment is calculated with sampling time Δ t, while the cumulative energy with the k-1 moment
Consume ecns(k-1) sum, so as to obtain the cumulative energy consumption e at kth momentcns(k)。
S23, circulation perform step S22, when the accumulative distance travelled S (k) reaches the setting fare register, calculate current
Set the average kilometer energy consumption e of mileage in mileage nset(n)；The formula (3) includes：
eset(n)=ecns(k)/Sset；
Wherein, the n is used to represent sequence number of the current setting mileage in multiple setting mileages；
Due to generally needing the time by multiple sampling periods, the operating range of pure electric automobile can be only achieved
Default mileage, step S22 is performed so needing to circulate, with by the way that by step S22 is calculated, to obtain accumulative distance travelled pure to judge
Whether the operating range of electric automobile has reached setting mileage；
Put down when accumulative distance travelled S (k) reaches the setting fare register, it is necessary to calculate the mileage in current setting mileage n
Equal kilometer energy consumption eset(n), i.e. the average kilometer energy consumption e of mileage that n-th of setting mileage is obtained with according to formula (3)set
(n)；
Because in embodiments of the present invention, k is used to represent the sequence number in multiple sampling time points in each setting mileage,
So after the average kilometer energy consumption calculation of the mileage for each setting mileage is finished, accumulative traveling is carried out in next setting mileage
, it is necessary to which k is reset when mileage and accumulative energy consumption calculation, i.e. the sequence number at present sample time point is needed from counting zero.
S24, by formula (4) to the average kilometer power consumption values eset(n) " filtering combination nonlinear feedback " place is carried out
Reason, the average kilometer traveling energy consumption e of the vehicle of n setting mileage output before obtainingveh(n)；Formula (4) formula includes：
eveh(n)=eset(n)×a+eveh(n-1)×b+ecorrect；
Wherein, a is n-th of setting mileage truly averagely kilometer energy consumption eset(n) weight coefficient；The b be n-th-
The average kilometer energy consumption e of vehicle of 1 setting mileage outputveh(n-1) weight coefficient；The span of a is 0<a≤
0.1, the b span are 0.9≤b<1, and a and b relation meets a+b=1；The ecorrectFor energy consumption correction,
The ecorrectAccording to the eset(n) with the eveh(n-1) increase and decrease of the difference between and increased and decreased accordingly.
E in the embodiment of the present inventioncorrectFor energy consumption correction, its value size sets the true average of mileage with n-th
Kilometer energy consumption eset(n) with the average kilometer energy consumption e of vehicle of first n-1 setting mileage outputveh(n-1) difference is relevant, with
eset(n)-eveh(n-1) increase of difference, energy consumption correction ecorrectAlso increase.In the embodiment of the present invention, energy consumption amendment is set
Measure ecorrectPurpose be：eset(n) it is the current kilometer energy consumption that is truly averaged for setting mileage, embodies current energy consumption size,
And eveh(n-1) be that preceding n-1 setting mileage vehicles after processing are averaged kilometer energy consumption, embodiment be history energy consumption size,
When current energy consumption differs larger (switching between such as bad working environments and gentle operating mode) with history energy consumption, by increasing energy consumption amendment
Amount can more preferably embody the change of current energy consumption.
In embodiments of the present invention, it can be taken in the average kilometer of calculating vehicle, the kilometer energy consumption in setting distance is carried out
Filtering and the processing of nonlinear feedback, by apart from the data weighting at current time (that is, (n-1)th setting mileage) farther out be set to compared with
It is small, it will be set to larger apart from the data weighting at current time relatively near (that is, n-th setting mileage), so as to solve prior art
In energy consumption caused by all historical datas are carried out into average value processing update slow, it is impossible to reflect recent transport condition in time
Problem.
In addition, in embodiments of the present invention, the average kilometer energy for obtaining the HVAC system of pure electric automobile can also be included
Consume ehvac, specific steps, including：
According to formula (5) ehvac=Phvac/vavrg, obtain the average kilometer energy consumption of the HVAC system 05 of pure electric automobile
ehvac；Wherein, vavrgFor vehicle average speed；PhvacFor the power output of HVAC system 05.
Specifically, the average kilometer energy consumption calculation of HVAC system 05 is by the way of power divided by speed, its etc. in theory
Valency is in energy consumption divided by the mode of mileage, derivationThe average kilometer energy consumption of HVAC system uses work(
The advantage of rate divided by speed mode is that the energy consumption that can be embodied instantaneously, in time caused by user's switch HVAC system 05 becomes
Change, and the change is embodied in the change of remaining mileage.
Vehicle average speed vavrgIt is that the GES that entire car controller 03 is sent according to abs controller 04 carries out cumulative meter
Obtained average speed, i.e. total kilometres divided by overall travel time.
Further, the power output P of HVAC system 05hvacAcquisition methods can specifically include：When HVAC system
When working state signal shows fault-free, according to formula (6) Phvac=PACCM+PPTCCalculate the power output P of HVAC systemhvac；
Wherein, the PACCMFor ACCM power；The PPTCFor PTC power；When the working state signal of HVAC system shows failure,
The power output P of HVAC system 05hvacFor 0.
In addition, in embodiments of the present invention, can also include obtaining average kilometer energy consumption changing value caused by gear switch
egearThe step of, including：
The flag bit Flg of preset power shelves switching economic gearDEFor 1 when, kilometer energy consumption drop-out value be setting value eDrvEco；In advance
If economic gear switches the flag bit Flg of power gearEDFor 1 when, kilometer energy consumption rising value be setting value eEcoDrv；
Obtain the flag bit FlgDEValue, and according to formula (7) egear=-eDrvEco*FlgDE+eEcoDrv*FlgEDCalculate
The average kilometer energy consumption changing value e of generationgear。
The change of gear, caused can be averaged the change of kilometer energy consumption, therefore, the embodiment of the present invention is by obtaining the mark
Will position FlgDEValue, can timely to gearshift 02 send gear signal judge so that by due to the change of gear
Average kilometer energy consumption change is calculated caused by change, to obtain more accurate energy consumption data.
S13, vehicle average energy consumption e obtained according to formula (1)avrg；The formula (1) includes：
eavrg=eveh+egear+ehvac。
Energy consumption e is travelled in the average kilometer for obtaining pure electric automobileveh, average kilometer energy consumption caused by gear switch becomes
Change value egear, and, the average kilometer energy consumption e of HVAC systemhvacAfterwards, it is possible to pass through being averaged for comprehensive statistics pure electric automobile
Kilometer energy consumption, i.e. average kilometer is travelled into energy consumption eveh, average kilometer energy consumption changing value e caused by gear switchgearIt is added
To obtain the average kilometer energy consumption of pure electric automobile.Because by the embodiment of the present invention, the embodiment of the present invention is by individually calculating
Energy consumption change caused by the ON/OFF of HVAC system and the switching of gear, it is possible to which the influence to remaining mileage gives instantaneously
Embody, and then the average kilometer energy consumption of accurate pure electric vehicle pond group can be obtained.
In another aspect of this invention, a kind of average kilometer Estimation of energy consumption dress of pure electric vehicle pond group is additionally provided
Put, as shown in figure 4, the average kilometer Estimation of energy consumption device of pure electric vehicle pond group can control system located at pure electric automobile
In the entire car controller 01 of system, and it can specifically include parameter acquiring unit 21, classification energy consumption acquiring unit 22 and average energy consumption
Computing unit 23, wherein：
Parameter acquiring unit 21, for receiving the cell voltage U transmitted by battery controllerbattWith battery current IbattLetter
Number, the speed v signals transmitted by abs controller, the automobile gear level signal transmitted by gearshift, and, HVAC system is sent out
The compressor of air conditioner ACCM power Ps sentACCMSignal, warm air system PTC power PsPTCSignal, HVAC working state signals；Classification energy
Acquiring unit 22 is consumed, the average kilometer for obtaining the pure electric automobile travels energy consumption eveh, average public affairs caused by gear switch
In energy consumption changing value egear, and, the average kilometer energy consumption e of HVAC systemhvac；Average energy consumption computing unit 23, for according to public affairs
Formula (1) obtains vehicle average energy consumption eavrg；The formula (1) includes：eavrg=eveh+egear+ehvac。
The application of the average kilometer method for estimating power consumption of pure electric vehicle pond group in the embodiment of the present invention is based on
The control system of pure electric automobile, the structural representation of the control system of the pure electric automobile with reference to shown in Fig. 2, control system
The critical piece of system includes entire car controller 01, gearshift 02, battery controller 03, abs controller 04, the and of HVAC system 05
Display unit 06 etc..
In embodiments of the present invention, entire car controller 01 is realized as the data processing equipment of various calculating, i.e. whole
Vehicle controller 01 can carry out calculation process by default various formula or algorithm to the various data of reception, and generation is corresponding
As a result, that is to say, that entire car controller 01 can include the average kilometer of pure electric vehicle pond group in the embodiment of the present invention
The unit of Estimation of energy consumption device
In practical application, entire car controller 01 can also receive the battery status information data transmitted by battery controller 03
(including cell voltage, electric current, SOC, temperature etc.), and, the speed information data transmitted by abs controller 04 are received, so that
The remaining utilisable energy and average kilometer power consumption values of battery pack can be calculated；
In addition, abs controller 04 can also receive the automobile gear level information data transmitted by gearshift 02, and,
ACCM/PTC power informations data and working state signal transmitted by HVAC system 05, so as to calculate current vehicle condition for
The influence of average kilometer energy consumption.
Entire car controller 01 can also be calculated pure electronic according to the remaining utilisable energy of battery pack and average kilometer power consumption values
The remaining mileage of automobile, and driver is presented to by display unit 06, it is choosing so as to facilitate driver to make correct judgement
Select suitable traffic route and suitable charging opportunity.
In embodiments of the present invention, first, parameter acquiring unit 21 obtains the battery pack transmitted by battery controller 03
Cell voltage UbattWith battery current IbattSignal；In addition, parameter acquiring unit 21 also obtains the car transmitted by abs controller 04
Automobile gear level signal transmitted by fast v signals, gearshift 02, and, the compressor of air conditioner ACCM transmitted by HVAC system 05
Power PACCMSignal, warm air system PTC power PsPTCSignal, HVAC working state signals.
Obtaining cell voltage UbattWith battery current IbattSignal, speed v signals, automobile gear level signal, and,
ACCM power PsACCMSignal, warm air system PTC power PsPTCAfter signal, HVAC working state signals, classification energy consumption acquiring unit 22
Can just be can be carried out according to these parameters it is follow-up calculate, specifically：
In embodiments of the present invention, average kilometer traveling energy consumption evehRefer to be only used for driving after removing various annex consumption
The average kilometer energy consumption of vehicle traveling；Obtain the average kilometer traveling energy consumption e of pure electric automobileveh, classification energy consumption acquiring unit 22
Sampling time point determining module, sampling computing module, segmentation kilometer energy consumption acquisition module and average kilometer row can specifically be included
Energy consumption generation module is sailed, wherein,
Sampling time point determining module is used to, according to default sample frequency, set sampling time point；In actual applications,
Sampling time point determining module can set sampling time point by way of preset sample frequency, such as can be that setting will
One sampling time point of every 10 milliseconds of settings, that is to say, that often cross 10 milliseconds and be carried out once adding up distance travelled calculating and tired
Count energy consumption calculation
Sampling computing module, for calculating the pure electric automobile in present sample time point k in each sampling time point
Accumulative distance travelled S (k), and the accumulative energy consumption of the pure electric automobile in present sample time point k is obtained according to formula (2)
ecns(k)；The formula (2) includes：
ecns(k)=ecns(k-1)+(Pbatt(k)-PACCM(k)-PPTC(k))×Δt；
Accumulative distance travelled, which is calculated, can be used for judging within the average kilometer energy consumption calculation cycle of a default mileage, pure
Whether the operating range of electric automobile has reached setting mileage.So that pure electric automobile often to be travelled to 500 meters as default setting
Exemplified by mileage, i.e. when pure electric automobile travels 500 meters, sampling computing module calculates pure electric automobile finally 500 meters of traveling
Average kilometer energy consumption calculation.Specifically, when the value that accumulative distance travelled S (k) is calculated in k-th of sampling time point reaches
At 500 meters, triggering sampling computing module carries out average kilometer energy consumption calculation.Specifically, obtaining accumulative distance travelled S (k) side
Formula can be, the distance travelled at kth moment is calculated by the speed v (k) and sampling time Δ t at kth moment, at the same with the k-1 moment
The summation of cumulative mileage S (k-1), the as cumulative mileage S (k) at kth moment, calculation formula is：S (k)=S (k-1)+v (k) ×
Δt。
Computing module sample while accumulative distance travelled calculating is carried out, in addition it is also necessary to obtain pure electric automobile and adopted currently
Sample time point k accumulative energy consumption ecns(k).Optionally, by formula (2), pure electric automobile can be obtained in the present sample time
Point k accumulative energy consumption ecns(k)；The formula (2) includes：
ecns(k)=ecns(k-1)+(Pbatt(k)-PACCM(k)-PPTC(k))×Δt；
Wherein, the k is present sample time point, and the k-1 is the upper sampling time point at k time points, and the Δ t is
Sampling time section between two sampling time points；The Pbatt(k) for by the cell voltage U at kth momentbatt(k) with battery electricity
Flow Ibatt(k) the power output P of kth moment battery is calculatedbatt(k)；The PACCM(k) it is the ACCM power at kth moment；Institute
State PPTC(k) it is the PTC power at kth moment；
As seen from the above, by the cell voltage U at kth momentbatt(k) with battery current Ibatt(k) the kth moment is calculated
The power output P of battery packbatt(k) the ACCM power Ps at kth moment, are subtractedACCMAnd PTC power Ps (k)PTC(k), then by kth when
Carve the power output P of battery packbatt(k) energy consumption at kth moment is calculated with sampling time Δ t, while the cumulative energy with the k-1 moment
Consume ecns(k-1) sum, so as to obtain the cumulative energy consumption e at kth momentcns(k)。
Kilometer energy consumption acquisition module is segmented, for reaching setting fare register as accumulative distance travelled S (k), calculating is currently set
Determine the average kilometer energy consumption e of mileage in mileage nset(n)；The formula (3) includes：
eset(n)=ecns(k)/Sset；Wherein, n is used to represent sequence number of the current setting mileage in multiple setting mileages；
Due to generally needing the time by multiple sampling periods, the operating range of pure electric automobile can be only achieved
Default mileage, so the computing module that needs to sample carries out multiple calculating, is set with judging whether accumulative distance travelled reaches
The mode of mileage determines whether the operating range of pure electric automobile has reached setting mileage；
Put down when accumulative distance travelled S (k) reaches the setting fare register, it is necessary to calculate the mileage in current setting mileage n
Equal kilometer energy consumption eset(n), i.e. segmentation kilometer energy consumption acquisition module is obtained with n-th setting mileage according to formula (3)
The average kilometer energy consumption e of mileageset(n)；
Because in embodiments of the present invention, k is used to represent the sequence number in multiple sampling time points in each setting mileage,
So after the average kilometer energy consumption calculation of the mileage for each setting mileage is finished, it is necessary to which k is clear in next setting mileage
Zero, i.e. the sequence number at present sample time point is needed from counting zero.
Average kilometer traveling energy consumption generation module, for by formula (4) to the average kilometer power consumption values eset(n) enter
Row " filtering combination nonlinear feedback " processing, the average kilometer traveling energy consumption e of the vehicle of n setting mileage output before obtainingveh(n)；
Formula (4) formula includes：
eveh(n)=eset(n)×a+eveh(n-1)×b+ecorrect；
Wherein, a is n-th of setting mileage truly averagely kilometer energy consumption eset(n) weight coefficient；The b be n-th-
The average kilometer energy consumption e of vehicle of 1 setting mileage outputveh(n-1) weight coefficient；The span of a is 0<a≤
0.1, the b span are 0.9≤b<1, and a and b relation meets a+b=1；The ecorrectFor energy consumption correction,
The ecorrectAccording to the eset(n) with the eveh(n-1) increase and decrease of the difference between and increased and decreased accordingly.
Average kilometer traveling energy consumption generation module, for by formula (4) to the average kilometer power consumption values eset(n) enter
Row " filtering combination nonlinear feedback " processing, the average kilometer traveling energy consumption e of the vehicle of n setting mileage output before obtainingveh(n)；
Formula (4) formula includes：
eveh(n)=eset(n)×a+eveh(n-1)×b+ecorrect；
Wherein, a is n-th of setting mileage truly averagely kilometer energy consumption eset(n) weight coefficient；The b be n-th-
The average kilometer energy consumption e of vehicle of 1 setting mileage outputveh(n-1) weight coefficient；The span of a is 0<a≤
0.1, the b span are 0.9≤b<1, and a and b relation meets a+b=1；The ecorrectFor energy consumption correction,
The ecorrectAccording to the eset(n) with the eveh(n-1) increase and decrease of the difference between and increased and decreased accordingly.
E in the embodiment of the present inventioncorrectFor energy consumption correction, its value size sets the true average of mileage with n-th
Kilometer energy consumption eset(n) with the average kilometer energy consumption e of vehicle of first n-1 setting mileage outputveh(n-1) difference is relevant, with
eset(n)-eveh(n-1) increase of difference, energy consumption correction ecorrectAlso increase.In the embodiment of the present invention, energy consumption amendment is set
Measure ecorrectPurpose be：eset(n) it is the current kilometer energy consumption that is truly averaged for setting mileage, embodies current energy consumption size,
And eveh(n-1) be that preceding n-1 setting mileage vehicles after processing are averaged kilometer energy consumption, embodiment be history energy consumption size,
When current energy consumption differs larger (switching between such as bad working environments and gentle operating mode) with history energy consumption, by increasing energy consumption amendment
Amount can more preferably embody the change of current energy consumption.
In embodiments of the present invention, it can be taken in the average kilometer of calculating vehicle, the kilometer energy consumption in setting distance is carried out
Filtering and the processing of nonlinear feedback, by apart from the data weighting at current time (that is, (n-1)th setting mileage) farther out be set to compared with
It is small, it will be set to larger apart from the data weighting at current time relatively near (that is, n-th setting mileage), so as to solve prior art
In energy consumption caused by all historical datas are carried out into average value processing update slow, it is impossible to reflect recent transport condition in time
Problem.
In addition, in embodiments of the present invention, classification energy consumption acquiring unit 22 can also include HVAC average energy consumptions and obtain mould
Block, HVAC average energy consumptions acquisition module is used for according to formula (5) ehvac=Phvac/vavrg, obtain the HVAC of the pure electric automobile
The average kilometer energy consumption e of systemhvac；Wherein, the vavrgFor vehicle average speed；The PhvacIt is defeated for the power of HVAC system
Go out.Specifically, the average kilometer energy consumption calculation of HVAC system 05 is by the way of power divided by speed, it is equivalent to energy in theory
The mode of consumption divided by mileage, derivation isThe average kilometer energy consumption of HVAC system using power divided by
The advantage of speed mode is that the energy consumption that can be embodied instantaneously, in time caused by user's switch HVAC system 05 changes, and
The change is embodied in the change of remaining mileage.
Vehicle average speed vavrgIt is that the GES that entire car controller 03 is sent according to abs controller 04 carries out cumulative meter
Obtained average speed, i.e. total kilometres divided by overall travel time.
Further, the HVAC average energy consumptions acquisition module in the embodiment of the present invention can also include the power of HVAC system
Determine component；The power of HVAC system determines that component is used for when the working state signal of HVAC system shows fault-free, according to
Formula (6) Phvac=PACCM+PPTCCalculate the power output P of HVAC systemhvac；Wherein, the PACCMFor ACCM power；It is described
PPTCFor PTC power；When the working state signal of HVAC system shows failure, the power output P of HVAC system 05hvacFor 0.
In addition, in embodiments of the present invention, classification energy consumption acquiring unit 22 can include correction value setting module, correction value
Setting module is used for the flag bit Flg of preset power shelves switching economic gearDEFor 1 when, kilometer energy consumption drop-out value be setting value
eDrvEco；Default economic gear switches the flag bit Flg of power gearEDFor 1 when, kilometer energy consumption rising value be setting value eEcoDrv；
Energy consumption changing value acquisition module is used to obtain the flag bit FlgDEValue, and according to formula (7) egear=-
eDrvEco*FlgDE+eEcoDrv*FlgEDCalculate the average kilometer energy consumption changing value e of generationgear。
The change of gear, caused can be averaged the change of kilometer energy consumption, therefore, the embodiment of the present invention is by obtaining the mark
Will position FlgDEValue, can timely to gearshift 02 send gear signal judge so that by due to the change of gear
Average kilometer energy consumption change is calculated caused by change, to obtain more accurate energy consumption data.
Average energy consumption computing unit 23 is used to obtain vehicle average energy consumption e according to formula (1)avrg；Formula (1) bag
Include：eavrg=eveh+egear+ehvac。
Energy consumption e is travelled in the average kilometer for obtaining pure electric automobileveh, average kilometer energy consumption caused by gear switch becomes
Change value egear, and, the average kilometer energy consumption e of HVAC systemhvacAfterwards, it is possible to pass through being averaged for comprehensive statistics pure electric automobile
Kilometer energy consumption, i.e. average kilometer is travelled into energy consumption eveh, average kilometer energy consumption changing value e caused by gear switchgearIt is added
To obtain the average kilometer energy consumption of pure electric automobile.Because by the embodiment of the present invention, the embodiment of the present invention is by individually calculating
Energy consumption change caused by the ON/OFF of HVAC system and the switching of gear, it is possible to which the influence to remaining mileage gives instantaneously
Embody, and then the average kilometer energy consumption of accurate pure electric vehicle pond group can be obtained.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.The device provided for embodiment
For, because it is corresponding with the method that embodiment is provided, so description is fairly simple, related part is said referring to method part
It is bright.
To the described above of the embodiment provided, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principle provided in this article and features of novelty phase one
The most wide scope caused.
Claims (8)
1. the average kilometer method for estimating power consumption of a kind of pure electric vehicle pond group, it is characterised in that including step：
Cell voltage U transmitted by S11, reception battery controllerbattWith battery current IbattSignal, transmitted by abs controller
Speed v signals, the automobile gear level signal transmitted by gearshift, and, the compressor of air conditioner ACCM work(transmitted by HVAC system
Rate PACCMSignal, warm air system PTC power PsPTCSignal, HVAC working state signals；
S12, the average kilometer traveling energy consumption e for obtaining the pure electric automobileveh, average kilometer energy consumption caused by gear switch becomes
Change value egear, and, the average kilometer energy consumption e of HVAC systemhvac；
S13, vehicle average energy consumption e obtained according to formula (1)avrg；The formula (1) includes：
eavrg=eveh+egear+ehvac；
Wherein, the average kilometer traveling energy consumption e for obtaining the pure electric automobileveh, including：
S21, according to default sample frequency, set sampling time point；
S22, in each sampling time point calculate the accumulative distance travelled S of the pure electric automobile in present sample time point k
(k), and according to formula (2) accumulative energy consumption e of the pure electric automobile in present sample time point k is obtainedcns(k)；The formula
(2) include：
ecns(k)=ecns(k-1)+(Pbatt(k)-PACCM(k)-PPTC(k))×Δt；
Wherein, the k is used to represent the sequence in multiple sampling time points of the present sample time point in default setting mileage
Number, the k-1 is the upper sampling time point at k time points, and the Δ t is the sampling time section between two sampling time points；
The Pbatt(k) for by the cell voltage U at kth momentbatt(k) with battery current Ibatt(k) the defeated of kth moment battery is calculated
Go out power Pbatt(k)；The PACCM(k) it is the ACCM power at kth moment；The PPTC(k) it is the PTC power at kth moment；
S23, circulation perform step S22, when the accumulative distance travelled S (k) reaches the setting fare register, calculate current setting
The average kilometer energy consumption e of mileage in mileage nset(n)；The formula (3) includes：
eset(n)=ecns(k)/Sset；
Wherein, the n is used to represent sequence number of the current setting mileage in multiple setting mileages；
S24, by formula (4) to the average kilometer power consumption values eset(n) it is filtered with reference to nonlinear feedback processing, obtains
The average kilometer traveling energy consumption e of vehicle of preceding n setting mileage outputveh(n)；Formula (4) formula includes：
eveh(n)=eset(n)×a+eveh(n-1)×b+ecorrect；
Wherein, a is n-th of setting mileage truly averagely kilometer energy consumption eset(n) weight coefficient；The b is (n-1)th
Set the average kilometer energy consumption e of vehicle of mileage outputveh(n-1) weight coefficient；The span of a is 0<A≤0.1, institute
The span for stating b is 0.9≤b<1, and a and b relation meets a+b=1；The ecorrectIt is described for energy consumption correction
ecorrectAccording to the eset(n) with the eveh(n-1) increase and decrease of the difference between and increased and decreased accordingly.
2. average kilometer method for estimating power consumption according to claim 1, it is characterised in that the acquisition pure electronic vapour
The average kilometer energy consumption e of the HVAC system of carhvac, including：
According to formula (5) ehvac=Phvac/vavrg, obtain the average kilometer energy consumption e of the HVAC system of the pure electric automobilehvac；
Wherein, the vavrgFor vehicle average speed；The PhvacFor the power output of HVAC system.
3. average kilometer method for estimating power consumption according to claim 2, it is characterised in that the power of the HVAC system is defeated
Go out PhvacAcquisition methods include：
When HVAC working state signals show fault-free, according to formula (6) Phvac=PACCM+PPTCCalculate the power of HVAC system
Export Phvac；Wherein, the PACCMFor ACCM power；The PPTCFor PTC power；
When HVAC working state signals show failure, the power output P of HVAC systemhvacFor 0.
4. average kilometer method for estimating power consumption according to claim 3, it is characterised in that the acquisition gear switch causes
Average kilometer energy consumption changing value egear, including：
The flag bit Flg of preset power shelves switching economic gearDEFor 1 when, kilometer energy consumption drop-out value be setting value eDrvEco；Default warp
The shelves that help switch the flag bit Flg of power gearEDFor 1 when, kilometer energy consumption rising value be setting value eEcoDrv；
Obtain the flag bit FlgDEValue, and according to formula (7) egear=-eDrvEco*FlgDE+eEcoDrv*FlgEDCalculate generation
Average kilometer energy consumption changing value egear。
5. a kind of average kilometer Estimation of energy consumption device of pure electric vehicle pond group, it is characterised in that including：
Parameter acquiring unit, for receiving the cell voltage U transmitted by battery controllerbattWith battery current IbattSignal, ABS
Speed v signals transmitted by controller, the automobile gear level signal transmitted by gearshift, and, the sky transmitted by HVAC system
Adjust compressor ACCM power PsACCMSignal, warm air system PTC power PsPTCSignal, HVAC working state signals；
Classification energy consumption acquiring unit, the average kilometer for obtaining the pure electric automobile travels energy consumption eveh, gear switch causes
Average kilometer energy consumption changing value egear, and, the average kilometer energy consumption e of HVAC systemhvac；
Average energy consumption computing unit, for obtaining vehicle average energy consumption e according to formula (1)avrg；The formula (1) includes：
eavrg=eveh+egear+ehvac
Wherein, the classification energy consumption acquiring unit, including：
Sampling time point determining module, for according to default sample frequency, setting sampling time point；
Sampling computing module, for calculating the pure electric automobile in the tired of present sample time point k in each sampling time point
Distance travelled S (k) is counted, and accumulative energy consumption e of the pure electric automobile in present sample time point k is obtained according to formula (2)cns
(k)；The formula (2) includes：
ecns(k)=ecns(k-1)+(Pbatt(k)-PACCM(k)-PPTC(k))×Δt；
Wherein, the k is used to represent the sequence in multiple sampling time points of the present sample time point in default setting mileage
Number, the k-1 is the upper sampling time point at k time points, and the Δ t is the sampling time section between two sampling time points；
The Pbatt(k) for by the cell voltage U at kth momentbatt(k) with battery current Ibatt(k) the defeated of kth moment battery is calculated
Go out power Pbatt(k)；The PACCM(k) it is the ACCM power at kth moment；The PPTC(k) it is the PTC power at kth moment；
Kilometer energy consumption acquisition module is segmented, for reaching the setting fare register when the accumulative distance travelled S (k), calculates and works as
The average kilometer energy consumption e of mileage in preceding setting mileage nset(n)；The formula (3) includes：
eset(n)=ecns(k)/Sset；
Wherein, the n is used to represent sequence number of the current setting mileage in multiple setting mileages；
Average kilometer traveling energy consumption generation module, for by formula (4) to the average kilometer power consumption values eset(n) " filter is carried out
Ripple combination nonlinear feedback " is handled, the average kilometer traveling energy consumption e of the vehicle of n setting mileage output before obtainingveh(n)；It is described
Formula (4) formula includes：
eveh(n)=eset(n)×a+eveh(n-1)×b+ecorrect；
Wherein, a is n-th of setting mileage truly averagely kilometer energy consumption eset(n) weight coefficient；The b is (n-1)th
Set the average kilometer energy consumption e of vehicle of mileage outputveh(n-1) weight coefficient；The span of a is 0<A≤0.1, institute
The span for stating b is 0.9≤b<1, and a and b relation meets a+b=1；The ecorrectIt is described for energy consumption correction
ecorrectAccording to the eset(n) with the eveh(n-1) increase and decrease of the difference between and increased and decreased accordingly.
6. average kilometer Estimation of energy consumption device according to claim 5, it is characterised in that the classification energy consumption obtains single
Member, including：
HVAC average energy consumption acquisition modules, for according to formula (5) ehvac=Phvac/vavrg, obtain the pure electric automobile
The average kilometer energy consumption e of HVAC systemhvac；
Wherein, the vavrgFor vehicle average speed；The PhvacFor the power output of HVAC system.
7. average kilometer Estimation of energy consumption device according to claim 6, it is characterised in that the HVAC average energy consumptions are obtained
Module, including：
The power of HVAC system determines component, for when HVAC working state signals show fault-free, according to formula (6) Phvac
=PACCM+PPTCCalculate the power output P of HVAC systemhvac；Wherein, the PACCMFor ACCM power；The PPTCFor PTC power；
When HVAC working state signals show failure, the power output P of HVAC system is determinedhvacFor 0.
8. average kilometer Estimation of energy consumption device according to claim 5, it is characterised in that the classification energy consumption obtains single
Member, including：
Correction value setting module, the flag bit Flg for preset power shelves switching economic gearDEFor 1 when, kilometer energy consumption drop-out value is
Setting value eDrvEco；Default economic gear switches the flag bit Flg of power gearEDFor 1 when, kilometer energy consumption rising value be setting value
eEcoDrv；
Energy consumption changing value acquisition module, for obtaining the flag bit FlgDEValue, and according to formula (7) egear=-eDrvEco*
FlgDE+eEcoDrv*FlgEDCalculate the average kilometer energy consumption changing value e of generationgear。
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