CN114083990A - Method and device for determining driving range of automobile - Google Patents

Method and device for determining driving range of automobile Download PDF

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CN114083990A
CN114083990A CN202010865007.5A CN202010865007A CN114083990A CN 114083990 A CN114083990 A CN 114083990A CN 202010865007 A CN202010865007 A CN 202010865007A CN 114083990 A CN114083990 A CN 114083990A
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eta
obtaining
power battery
fuel cell
mileage
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CN114083990B (en
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常朕
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/12—Recording operating variables ; Monitoring of operating variables
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
    • 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
    • B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Abstract

The application discloses a method and a device for determining the driving range of an automobile, which are applied to a hybrid electric automobile, and the method comprises the following steps: detecting the percentage SOC of the residual electric quantity of the power battery, the capacity retention rate K of the power battery and the nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting energy consumption eta of hybrid electric vehicle per kilometer2(ii) a According to SOC, K, QBObtaining the residual total electric quantity J of the power battery1(ii) a According to MH、η1Obtaining the total remaining charge J of the fuel cell2(ii) a According to J1、J2And η2And obtaining the driving range S. Determining driving rangeNot only the capacity retention rate of the power cell but also the hydrogen-electricity conversion rate of the fuel cell are considered; the false problem of the electric quantity of the power battery and the fuel battery is avoided, the accurate actual electric quantity of the power battery and the fuel battery can be respectively obtained, and the mutual influence between the hydrogen consumption and the power consumption is reduced. Therefore, the driving range of the automobile can be accurately determined according to the accurate actual current.

Description

Method and device for determining driving range of automobile
Technical Field
The present application relates to the field of automotive technologies, and in particular, to a method and an apparatus for determining a driving range of an automobile.
Background
The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source, integrates advanced technologies in the aspects of power control and driving of the automobile, and has the characteristic of advanced technical principle.
For a new energy automobile powered by a power battery and a fuel battery, the driving range of the new energy automobile can be calculated by the residual electric quantity of the power battery to obtain a first part, the driving range of the new energy automobile can be calculated by the fuel battery to obtain a second part, and the first part and the second part are added to obtain the total driving range of the automobile, so that the total driving range is displayed by an instrument in the automobile to provide reference for a driver. Whether the power battery and the fuel battery are in different environments, the actual driving range provided by the power battery and the fuel battery is different.
Therefore, there is a problem that an error is large in determining the total driving range only by simply summing the first part and the second part.
Disclosure of Invention
In order to solve the technical problem, the application provides a method and a device for determining the driving range of an automobile, which can accurately obtain the total driving range of the automobile.
The embodiment of the application discloses the following technical scheme:
in a first aspect, the present application provides a method for determining a driving range of a vehicle, applied to a hybrid vehicle, the method comprising:
detecting the percentage SOC of the residual electric quantity of the power battery, the capacity retention rate K of the power battery and the nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting the energy consumption eta of the hybrid electric vehicle per kilometer2；
According to the SOC, the K and the QBObtaining the residual total electric quantity J of the power battery1(ii) a According to said MHEta of1Obtaining a total remaining charge J of the fuel cell2；
According to said J1The aforementioned J2And said η2And obtaining the driving range S.
Optionally, root ofAccording to the SOC, the K and the QBObtaining the residual total electric quantity J of the power battery1Specifically, it is obtained by the following formula:
J1＝SOC·K·QB
wherein Q isBObtaining, from the parameters of the vehicle, J1And the residual total electric quantity of the power battery is obtained.
Optionally, according to said MHEta of1Obtaining a total remaining charge J of the fuel cell2Specifically, it is obtained by the following formula:
J2＝η1·MH
wherein, J2Is the remaining total charge of the fuel cell.
Optionally, according to said J1The aforementioned J2And said η2Obtaining the driving range S, specifically by the following formula:
Figure BDA0002649456710000021
wherein S is the driving range.
Optionally, within a preset temperature interval, K is positively correlated with the ambient temperature of the power battery.
Optionally, said η1According to the driving mileage S of the automobile after the starting1And (4) obtaining.
Optionally, said η1According to the driving mileage S of the automobile after the starting1The method comprises the following steps:
when said S is1< predetermined mileage threshold, the η1According to the initial hydrogen-electricity conversion rate etacAnd the actual hydrogen-to-electricity conversion rate etasObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is1According to the accumulated consumed energy Q of the fuel cell in the previous periodL1Accumulated consumed energy Q of the fuel cell at the present time periodL2Accumulated hydrogen consumption mass in the previous periodMH1And the accumulated hydrogen consumption mass M of the current periodH2And (4) obtaining.
Optionally, when said S1< predetermined mileage threshold, the η1Specifically, the method is obtained by the following formula:
Figure BDA0002649456710000022
wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is1Specifically, the method is obtained by the following formula:
Figure BDA0002649456710000023
Figure BDA0002649456710000024
wherein, UHIs the voltage of the fuel cell, IHAnd the current at the fuel cell terminal is the corresponding time length of the current time period and the previous time period.
Optionally, said ηsAccording to said QL2And said MH2And (4) obtaining.
Optionally, said ηsSpecifically, the method is obtained by the following formula:
Figure BDA0002649456710000031
wherein eta issIs the actual hydrogen-to-electricity conversion rate.
Optionally, said η2According to the driving mileage S of the automobile after the starting1And (4) obtaining.
Optionally, said η2According to the driving mileage S of the automobile after the starting1The method comprises the following steps:
when said S is1< predetermined mileage threshold, the η2According to initial energy consumption etadAnd the actual energy consumption ηtObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is2Accumulating the consumed energy Q according to the previous periodL3Cumulative energy consumed in the current period QL3The accumulated running mileage S in the previous period2And the accumulated driving mileage S in the current time period3And (4) obtaining.
Optionally, when said S1< predetermined mileage threshold, the η2Specifically, the method is obtained by the following formula:
Figure BDA0002649456710000032
wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is2Specifically, the method is obtained by the following formula:
Figure BDA0002649456710000033
Figure BDA0002649456710000034
wherein, UHIs the voltage of the fuel cell, IHFor said fuel cell terminal current, UBIs the voltage of the power cell, IBAnd delta t is the current of the power battery terminal, and the time length corresponding to the current time interval and the previous time interval.
Optionally, said ηtAccording to said QL3And said S3And (4) obtaining.
Optionally, said ηtSpecifically, the method is obtained by the following formula:
Figure BDA0002649456710000035
wherein eta istIs the actual energy consumption.
In a second aspect, the present application provides an apparatus for determining a driving range of an automobile, comprising: a detection unit and a calculation unit;
the detection unit is used for detecting the percentage SOC of the residual electric quantity of the power battery, the capacity retention rate K of the power battery and the nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting the energy consumption eta of the hybrid electric vehicle per kilometer2；
The computing unit is used for calculating the Q according to the SOC, the K and the QBObtaining the residual total electric quantity J of the power battery1(ii) a According to said MHEta of1Obtaining a total remaining charge J of the fuel cell2(ii) a According to said J1The aforementioned J2And said η2And obtaining the driving range S.
Optionally, the calculating unit is specifically configured to obtain the total remaining electric quantity J of the power battery according to the following formula1：
J1＝SOC·K·QB
Wherein Q isBObtaining, from the parameters of the vehicle, J1And the residual total electric quantity of the power battery is obtained.
Optionally, the calculating unit is specifically configured to obtain the total remaining electric quantity J of the fuel cell by the following formula2：
J2＝η1·MH
Wherein, J2Is the remaining total charge of the fuel cell.
Optionally, the calculating unit is specifically configured to obtain the driving range S according to the following formula:
Figure BDA0002649456710000041
wherein S is the driving range.
Optionally, within a preset temperature interval, K is positively correlated with the ambient temperature of the power battery.
Optionally, said η1According to the driving mileage S of the automobile after the starting1And (4) obtaining.
Optionally, the computing unit is specifically configured to use the S as the reference1< predetermined mileage threshold, the η1According to the initial hydrogen-electricity conversion rate etacAnd the actual hydrogen-to-electricity conversion rate etasObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is1According to the accumulated consumed energy Q of the fuel cell in the previous periodL1Accumulated consumed energy Q of the fuel cell at the present time periodL2Accumulating the hydrogen consumption mass M in the previous periodH1And the accumulated hydrogen consumption mass M of the current periodH2And (4) obtaining.
Optionally, the computing unit is specifically configured to use the S as the reference1When the preset mileage threshold value is less than the preset mileage threshold value, the eta is obtained by the following formula1：
Figure BDA0002649456710000051
Wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, the eta is obtained by the following formula1：
Figure BDA0002649456710000052
Figure BDA0002649456710000053
Wherein, UHIs the voltage of the fuel cell, IHAnd the current at the fuel cell terminal is the corresponding time length of the current time period and the previous time period.
Optionally, said ηsAccording to said QL2And said MH2And (4) obtaining.
Optionally, the calculation unit is specifically configured to obtain the η according to the following formulas：
Figure BDA0002649456710000054
Wherein eta issIs the actual hydrogen-to-electricity conversion rate.
Optionally, said η2According to the driving mileage S of the automobile after the starting1And (4) obtaining.
Optionally, the computing unit is specifically configured to use the S as the reference1< predetermined mileage threshold, the η2According to initial energy consumption etadAnd the actual energy consumption ηtObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is2Accumulating the consumed energy Q according to the previous periodL3Cumulative energy consumed in the current period QL4The accumulated running mileage S in the previous period2And the accumulated driving mileage S in the current time period3And (4) obtaining.
Optionally, the computing unit is specifically configured to use the S as the reference1When the preset mileage threshold value is less than the preset mileage threshold value, the eta is obtained through the following formula2：
Figure BDA0002649456710000055
Wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, the eta is obtained through the following formula2：
Figure BDA0002649456710000056
Figure BDA0002649456710000057
Wherein, UHIs the voltage of the fuel cell, IHFor said fuel cell terminal current, UBIs the voltage of the power cell, IBAnd delta t is the current of the power battery terminal, and the time length corresponding to the current time interval and the previous time interval.
Optionally, said ηtAccording to said QL3And said S3And (4) obtaining.
Optionally, the calculation unit is specifically configured to obtain the η according to the following formulat：
Figure BDA0002649456710000061
Wherein eta istIs the actual energy consumption.
According to the technical scheme, the method has the following advantages:
the embodiment of the application provides a method for determining the driving range of an automobile, which is applied to a hybrid electric automobile, and comprises the following steps: detecting the percentage SOC of the residual electric quantity of the power battery, the capacity retention rate K of the power battery and the nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting the energy consumption eta of the hybrid electric vehicle per kilometer2(ii) a According to the SOC, the K and the QBObtaining the residual total electric quantity J of the power battery1(ii) a According to said MHEta of1Obtaining a total remaining charge J of the fuel cell2(ii) a According to said J1The aforementioned J2And said η2And obtaining the driving range S. In determining the driving range, not only the capacity retention rate of the power battery but also the hydrogen-electricity conversion rate of the fuel cell are considered; thereby avoiding the false electricity quantity problem of the power battery and the fuel battery, further obtaining the accurate actual electricity quantity of the power battery and the fuel battery respectively, and reducing the hydrogen consumption and the fuel consumptionThe mutual influence between the electricity consumptions. Therefore, according to the technical scheme provided by the application, the driving range of the automobile can be accurately determined according to the accurate actual current.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a graph comparing a mileage displayed by a meter with an actual mileage provided by the present application;
FIG. 2 is a flow chart of a method of determining a driving range of an automobile provided herein;
FIG. 3 is a schematic diagram of test points for a power cell and a fuel cell provided herein;
fig. 4 is a schematic diagram of an apparatus for determining a driving range of an automobile according to the present application.
Detailed Description
Referring to fig. 1, a graph comparing the displayed mileage with the actual mileage is provided.
In the figure, curve a represents the actual range, curve B represents the range of the prior art, and curve C represents the range of the present application.
It can be seen from the figure that the error between the driving range shown by the curve B and the actual virtual-actual range shown by the curve a, that is, the error between the performance range and the actual range that the vehicle can drive, is large, which is obtained by the scheme in the prior art. Because the expressed mileage is large and the actual mileage is small, the automobile loses power in the process of driving to the destination.
In order to solve the above problems, the present application provides a method and an apparatus for determining a driving range of an automobile, in which a battery capacity retention factor and a hydrogen-to-electricity conversion rate are introduced when calculating the driving range of the automobile, so that a temperature environment factor where a power battery is located is considered when calculating the driving range of the automobile, and a hydrogen-to-electricity conversion rate of a fuel cell is considered, thereby reducing an error between a total driving range and an actual driving range and improving accuracy of calculating the total driving range.
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The first embodiment is as follows:
the embodiment of the application provides a method for determining the driving range of an automobile, which is specifically described below with reference to the accompanying drawings.
Referring to fig. 2, a flowchart of a method for determining a driving range of an automobile is provided.
The method for determining the driving range of the automobile is applied to a hybrid electric automobile, and comprises the following steps:
step 201: detecting the percentage SOC of the residual electric quantity of the power battery, the capacity retention rate K of the power battery and the nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting the energy consumption eta of the hybrid electric vehicle per kilometer2。
Wherein, the nominal total electric quantity Q of the power batteryBOf known quantity, Q, can be obtained according to the type or configuration of the carBThe unit of (a) is kwh; the capacity retention rate K of the power battery is a matrix and is embodied in a percentage mode; residual mass M of hydrogen fuelHUnit of (d) is g; hydrogen-to-electricity conversion rate eta1The unit of (a) is kwh/g; energy consumption eta of the hybrid electric vehicle per kilometer2The unit of (b) is kwh/km.
The vehicle may check the above parameters through an internal sensor, and the specific detection mode is not limited in the present application, and may not be detected through a sensor.
Step 202: according to the SOC, the K and the QBObtaining the residual total electric quantity J of the power battery1(ii) a According to said MHEta of1Obtaining a total remaining charge J of the fuel cell2。
To facilitate understanding of those skilled in the art, the following description will first describe obtaining the remaining total charge J of the power battery1The process of (1).
As an optional implementation, according to the SOC, the K, and the QBObtaining the residual total electric quantity J of the power battery1Specifically, it is obtained by the following formula:
J1＝SOC·K·QB
wherein Q isBObtaining, from the parameters of the vehicle, J1And the residual total electric quantity of the power battery is obtained.
Obtaining the total remaining charge J of the fuel cell will be described2The process of (1).
As an alternative embodiment, according to said MHEta of1Obtaining a total remaining charge J of the fuel cell2Specifically, it is obtained by the following formula:
J2＝η1·MH
wherein, J2Is the remaining total charge of the fuel cell.
Obtaining the residual total electric quantity J of the power battery1And total remaining capacity J of the fuel cell2Then, the energy consumption eta of the hybrid electric vehicle per kilometer is combined2The driving range S of the hybrid electric vehicle can be obtained.
Step 203: according to said J1The aforementioned J2And said η2And obtaining the driving range S.
As a possible embodiment, according to said J1The aforementioned J2And said η2Obtaining the driving range S, specifically by the following formula:
Figure BDA0002649456710000081
wherein S is the driving range.
It should be noted that, within the preset temperature interval, K is positively correlated to the ambient temperature of the power battery.
For example, K is a matrix that varies with temperature, for example, when the temperature is 25 ℃, K is 100% (for ease of understanding, the capacity retention of the battery in practical cases is not 100% by way of example only), K continues to decrease with decreasing temperature, and when the temperature is-20 ℃, K is 65%. Therefore, within the preset temperature interval, the K is positively correlated with the ambient temperature of the power battery, namely the lower the temperature is, the smaller the K is. Wherein, the preset temperature interval can be [ 30-30 ], unit: and C.
The data of different batteries K are different, and K can reflect the capacity retention rate of the power battery at different temperatures, and the capacity retention rate can be used as a temperature factor to reflect the cruising ability of the power battery.
The driving range actually provided by the power battery part is described above, and the fuel battery part is described below.
η1Is the hydrogen-to-electricity conversion rate, eta1According to the driving mileage S of the automobile after the starting1And (4) obtaining. That is, the driving distance S of the vehicle after the current start1At different times, the hydrogen-electricity conversion rate eta1Different.
Specifically, when said S is1< predetermined mileage threshold, the η1According to the initial hydrogen-electricity conversion rate etacAnd the actual hydrogen-to-electricity conversion rate etasAnd obtaining the weight.
When said S is1When the mileage threshold is not less than the preset mileage threshold, eta is1According to the accumulated consumed energy Q of the fuel cell in the previous periodL1Accumulated consumed energy Q of the fuel cell at the present time periodL2Accumulating the hydrogen consumption mass M in the previous periodH1And the accumulated hydrogen consumption mass M of the current periodH2And (4) obtaining.
The preset mileage threshold value is not limited in the application, and may be 50km, 60km, or any numerical value within an interval of 50km to 60 km.
When said S is1< predetermined mileage threshold, the η1Specifically, the method is obtained by the following formula:
Figure BDA0002649456710000091
and S is the preset mileage threshold value.
When said S is1When the mileage threshold is not less than the preset mileage threshold, eta is1Specifically, the method is obtained by the following formula:
Figure BDA0002649456710000092
Figure BDA0002649456710000093
wherein, UHIs the voltage of the fuel cell, IHAnd the current at the fuel cell terminal is the corresponding time length of the current time period and the previous time period. Specifically, Δ t may be 0.1s or 0.2s, which is not limited in this application, and a person skilled in the art may set a specific value of Δ t according to actual needs.
Wherein the previous period of time is accumulated with the hydrogen consumption mass MH1It is necessary to introduce a multiple reduction coefficient 15/16 to gradually weaken the accumulated hydrogen consumption mass M in the previous periodH1The ratio of (a) to (b).
Referring to fig. 3, a schematic diagram of test points of a power cell and a fuel cell provided by the present application is shown.
U in the figureHIs a test point of the voltage of the fuel cell, IHA test point for fuel cell terminal current; u shapeBIs a test point of the voltage of the power battery, IBIs the end electricity of the power batteryA test point of a stream. The above four parameters can be obtained in the manner shown in fig. 3.
Eta of1According to the initial hydrogen-electricity conversion rate etacThe parameters inherent to the hybrid automobile can be obtained by the hybrid automobile.
Eta ofsAccording to said QL2And said MH2And (4) obtaining.
In particular, said ηsSpecifically, the method is obtained by the following formula:
Figure BDA0002649456710000101
wherein eta issIs the actual hydrogen-to-electricity conversion rate.
The above introduces the hydrogen-electricity conversion rate eta1The energy consumption per kilometer eta of the hybrid vehicle is described below2The influence of (c).
As a possible implementation, said η2According to the driving mileage S of the automobile after the starting1And (4) obtaining.
Eta of2According to the driving mileage S of the automobile after the starting1The method comprises the following steps:
when said S is1< predetermined mileage threshold, the η2According to initial energy consumption etadAnd the actual energy consumption ηtAnd obtaining the weight.
When said S is1When the mileage threshold is not less than the preset mileage threshold, eta is2Accumulating the consumed energy Q according to the previous periodL3Cumulative energy consumed in the current period QL4The accumulated running mileage S in the previous period2And the accumulated driving mileage S in the current time period3And (4) obtaining.
Specifically, when said S is1< predetermined mileage threshold, the η2Specifically, the method is obtained by the following formula:
Figure BDA0002649456710000102
wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is2Specifically, the method is obtained by the following formula:
Figure BDA0002649456710000103
Figure BDA0002649456710000104
wherein, UHIs the voltage of the fuel cell, IHFor said fuel cell terminal current, UBIs the voltage of the power cell, IBAnd delta t is the current of the power battery terminal, and the time length corresponding to the current time interval and the previous time interval.
Wherein, the accumulated consumed energy Q of the fuel cell of the preceding periodL3It is necessary to introduce a multiplication factor 15/16 to gradually weaken the accumulated consumed energy Q of the fuel cell for the previous period of timeL3The ratio of (a) to (b).
Eta oftAccording to said QL3And said S3And (4) obtaining.
In particular, said ηtSpecifically, the method is obtained by the following formula:
Figure BDA0002649456710000111
wherein eta istIs the actual energy consumption.
Eta mentioned in the above embodimentsc、ηd、ηtAnd ηsThe unit of (a) is kwh/g; qL1、QL2、QL3And QL4The unit of (a) is kwh; mH1And MH2Unit of (d) is g; u shapeHAnd UBHas the unit of V; i isHAnd IBThe unit of (A); s2And S3The unit of (c) is km.
The embodiment of the application provides a method for determining the driving range of an automobile, which is applied to a hybrid electric automobile, and comprises the following steps: detecting the percentage SOC of the residual electric quantity of the power battery, the capacity retention rate K of the power battery and the nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting the energy consumption eta of the hybrid electric vehicle per kilometer2(ii) a According to the SOC, the K and the QBObtaining the residual total electric quantity J of the power battery1(ii) a According to said MHEta of1Obtaining a total remaining charge J of the fuel cell2(ii) a According to said J1The aforementioned J2And said η2And obtaining the driving range S. In determining the driving range, not only the capacity retention rate of the power battery but also the hydrogen-electricity conversion rate of the fuel cell are considered; therefore, the false problem of the electric quantity of the power battery and the fuel battery is avoided, the accurate actual electric quantity of the power battery and the accurate actual electric quantity of the fuel battery can be obtained respectively, and the mutual influence between hydrogen consumption and power consumption is reduced. Therefore, according to the technical scheme provided by the application, the driving range of the automobile can be accurately determined according to the accurate actual current.
Example two:
the second embodiment of the present application provides a device for determining a driving range of an automobile, which is described in detail below with reference to the accompanying drawings.
Referring to fig. 4, the present application provides a schematic diagram of an apparatus for determining a driving range of a vehicle.
The device for determining the driving range of the automobile comprises the following components: a detection unit 401 and a calculation unit 402;
the detection unit 401 is configured to detect percentage SOC of the power battery, capacity retention ratio K of the power battery, and nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting the energy consumption eta of the hybrid electric vehicle per kilometer2；
The calculating unit 402 is configured to calculate a value according to the SOC, the K,Said QBObtaining the residual total electric quantity J of the power battery1(ii) a According to said MHEta of1Obtaining a total remaining charge J of the fuel cell2(ii) a According to said J1The aforementioned J2And said η2And obtaining the driving range S.
Optionally, the calculating unit 402 is specifically configured to obtain the remaining total electric quantity J of the power battery according to the following formula1：
J1＝SOC·K·QB
Wherein Q isBObtaining, from the parameters of the vehicle, J1And the residual total electric quantity of the power battery is obtained.
Optionally, the calculating unit 402 is specifically configured to obtain the total remaining electric quantity J of the fuel cell according to the following formula2：
J2＝η1·MH
Wherein, J2Is the remaining total charge of the fuel cell.
Optionally, the calculating unit 402 is specifically configured to obtain the driving range S according to the following formula:
Figure BDA0002649456710000121
wherein S is the driving range.
Optionally, within a preset temperature interval, K is positively correlated with the ambient temperature of the power battery.
Optionally, said η1According to the driving mileage S of the automobile after the starting1And (4) obtaining.
Optionally, the calculating unit 402 is specifically configured to determine when S is1< predetermined mileage threshold, the η1According to the initial hydrogen-electricity conversion rate etacAnd the actual hydrogen-to-electricity conversion rate etasObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is1According to the preceding period of the fuel cellCumulative consumed energy QL1Accumulated consumed energy Q of the fuel cell at the present time periodL2Accumulating the hydrogen consumption mass M in the previous periodH1And the accumulated hydrogen consumption mass M of the current periodH2And (4) obtaining.
Optionally, the calculating unit 402 is specifically configured to determine when S is1When the preset mileage threshold value is less than the preset mileage threshold value, the eta is obtained by the following formula1：
Figure BDA0002649456710000122
Wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, the eta is obtained by the following formula1：
Figure BDA0002649456710000131
Figure BDA0002649456710000132
Wherein, UHIs the voltage of the fuel cell, IHAnd the current at the fuel cell terminal is the corresponding time length of the current time period and the previous time period.
Optionally, said ηsAccording to said QL2And said MH2And (4) obtaining.
Optionally, the calculating unit 402 is specifically configured to obtain the η according to the following formulas：
Figure BDA0002649456710000133
Wherein eta issIs the actual hydrogen-to-electricity conversion rate.
Optionally, said η2According to the driving mileage S of the automobile after the starting1And (4) obtaining.
Optionally, the calculating unit 402 is specifically configured to determine when S is1< predetermined mileage threshold, the η2According to initial energy consumption etadAnd the actual energy consumption ηtObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is2Accumulating the consumed energy Q according to the previous periodL3Cumulative energy consumed in the current period QL4The accumulated running mileage S in the previous period2And the accumulated driving mileage S in the current time period3And (4) obtaining.
Optionally, the calculating unit 402 is specifically configured to determine when S is1When the preset mileage threshold value is less than the preset mileage threshold value, the eta is obtained through the following formula2：
Figure BDA0002649456710000134
Wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, the eta is obtained through the following formula2：
Figure BDA0002649456710000135
Figure BDA0002649456710000136
Wherein, UHIs the voltage of the fuel cell, IHFor said fuel cell terminal current, UBIs the voltage of the power cell, IBAnd delta t is the current of the power battery terminal, and the time length corresponding to the current time interval and the previous time interval.
Optionally, said ηtAccording to said QL3And said S3And (4) obtaining.
Optionally, the calculating unit 402 is specifically configured to obtain the η according to the following formulat：
Figure BDA0002649456710000141
Wherein eta istIs the actual energy consumption.
The embodiment of the application provides a device for determining the driving range of an automobile, which comprises: a detection unit and a calculation unit; the detection unit is used for detecting the percentage SOC of the residual electric quantity of the power battery, the capacity retention rate K of the power battery and the nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting the energy consumption eta of the hybrid electric vehicle per kilometer2(ii) a The computing unit is used for calculating the Q according to the SOC, the K and the QBObtaining the residual total electric quantity J of the power battery1(ii) a According to said MHEta of1Obtaining a total remaining charge J of the fuel cell2(ii) a According to said J1The aforementioned J2And said η2And obtaining the driving range S. In determining the driving range, not only the capacity retention rate of the power battery but also the hydrogen-electricity conversion rate of the fuel cell are considered; therefore, the false problem of the electric quantity of the power battery and the fuel battery is avoided, the accurate actual electric quantity of the power battery and the accurate actual electric quantity of the fuel battery can be obtained respectively, and the mutual influence between hydrogen consumption and power consumption is reduced. Therefore, according to the technical scheme provided by the application, the driving range of the automobile can be accurately determined according to the accurate actual current.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, they are described in a relatively simple manner, and reference may be made to some descriptions of method embodiments for relevant points. The above-described system embodiments are merely illustrative, and the units and modules described as separate components may or may not be physically separate. In addition, some or all of the units and modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application in any way. Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application. Those skilled in the art can now make numerous possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the claimed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the protection scope of the technical solution of the present application without departing from the content of the technical solution of the present application.

Claims (12)

1. A method of determining a driving range of a vehicle, for use in a hybrid vehicle, the method comprising:
detecting the percentage SOC of the residual electric quantity of the power battery, the capacity retention rate K of the power battery and the nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting the energy consumption eta of the hybrid electric vehicle per kilometer2；
According to the SOC, the K and the QBObtaining the residual total electric quantity J of the power battery1(ii) a According to said MHEta of1Obtaining a total remaining charge J of the fuel cell2；
According to said J1The aforementioned J2And said η2And obtaining the driving range S.
2. The method of claim 1, wherein Q is determined according to the SOC, the K, and the QBObtaining the residual total electric quantity J of the power battery1Specifically, it is obtained by the following formula:
J1＝SOC·K·QB
wherein Q isBObtaining, from the parameters of the vehicle, J1The residual total electric quantity of the power battery is obtained;
according to said MHEta of1Obtaining a total remaining charge J of the fuel cell2Specifically, it is obtained by the following formula:
J2＝η1·MH
wherein, J2Is the remaining total charge of the fuel cell.
3. The method according to claim 1 or 2, characterized in that according to said J1The aforementioned J2And said η2Obtaining the driving range S, specifically by the following formula:
Figure FDA0002649456700000011
wherein S is the driving range.
4. The method according to claim 3, wherein the K is positively correlated with the ambient temperature of the power battery within a preset temperature interval.
5. The method of claim 4, wherein η is1According to the driving mileage S of the automobile after the starting1Obtaining;
eta of1According to the driving mileage S of the automobile after the starting1The method comprises the following steps:
when said S is1< predetermined mileage threshold, the η1According to the initial hydrogen-electricity conversion rate etacAnd the actual hydrogen-to-electricity conversion rate etasObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is1According to the accumulated consumed energy Q of the fuel cell in the previous periodL1Accumulated consumed energy Q of the fuel cell at the present time periodL2Accumulating the hydrogen consumption mass M in the previous periodH1And the accumulated hydrogen consumption mass M of the current periodH2Obtaining;
when said S is1< predetermined mileage threshold, the η1Specifically, the method is obtained by the following formula:
Figure FDA0002649456700000021
wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is1Specifically, the method is obtained by the following formula:
Figure FDA0002649456700000022
Figure FDA0002649456700000023
wherein, UHIs the fuelVoltage of the battery, IHThe current at the fuel cell end is the corresponding duration of the current time period and the previous time period;
eta ofsAccording to said QL2And said MH2Obtaining;
eta ofsSpecifically, the method is obtained by the following formula:
Figure FDA0002649456700000024
wherein eta issIs the actual hydrogen-to-electricity conversion rate.
6. The method of claim 4, wherein η is2According to the driving mileage S of the automobile after the starting1Obtaining;
eta of2According to the driving mileage S of the automobile after the starting1The method comprises the following steps:
when said S is1< predetermined mileage threshold, the η2According to initial energy consumption etadAnd the actual energy consumption ηtObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is2Accumulating the consumed energy Q according to the previous periodL3Cumulative energy consumed in the current period QL4The accumulated running mileage S in the previous period2And the accumulated driving mileage S in the current time period3Obtaining;
when said S is1< predetermined mileage threshold, the η2Specifically, the method is obtained by the following formula:
Figure FDA0002649456700000025
wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is2Specifically, the method is obtained by the following formula:
Figure FDA0002649456700000026
Figure FDA0002649456700000031
wherein, UHIs the voltage of the fuel cell, IHFor said fuel cell terminal current, UBIs the voltage of the power cell, IBSetting delta t as the current of the power battery terminal, wherein delta t is the corresponding duration of the current time period and the previous time period;
eta oftAccording to said QL3And said S3Obtaining;
eta oftSpecifically, the method is obtained by the following formula:
Figure FDA0002649456700000032
wherein eta istIs the actual energy consumption.
7. An apparatus for determining a driving range of an automobile, comprising: a detection unit and a calculation unit;
the detection unit is used for detecting the percentage SOC of the residual electric quantity of the power battery, the capacity retention rate K of the power battery and the nominal total electric quantity Q of the power batteryB(ii) a Detecting the residual mass M of the hydrogen fuelHHydrogen-to-electricity conversion ratio eta1(ii) a Detecting the energy consumption eta of the hybrid electric vehicle per kilometer2；
The computing unit is used for calculating the Q according to the SOC, the K and the QBObtaining the residual total electric quantity J of the power battery1(ii) a According to said MHEta of1Obtaining a total remaining charge J of the fuel cell2(ii) a According to said J1The aforementioned J2And said η2Obtaining the sequenceThe driving range S.
8. The device according to claim 7, characterized in that the calculation unit is specifically configured to obtain the total remaining charge J of the power battery by the following formula1：
J1＝SOC·K·QB
Wherein Q isBObtaining, from the parameters of the vehicle, J1The residual total electric quantity of the power battery is obtained;
the calculation unit is specifically configured to obtain a remaining total charge amount J of the fuel cell by the following formula2：
J2＝η1·MH
Wherein, J2Is the remaining total charge of the fuel cell.
9. The device according to claim 7 or 8, characterized in that the calculation unit is specifically configured to obtain the driving range S by the following formula:
Figure FDA0002649456700000033
wherein S is the driving range.
10. The device according to claim 9, wherein the K is positively correlated with the ambient temperature of the power battery within a preset temperature interval.
11. The apparatus of claim 10, wherein η is1According to the driving mileage S of the automobile after the starting1Obtaining;
the computing unit is specifically used for the step S1< predetermined mileage threshold, the η1According to the initial hydrogen-electricity conversion rate etacAnd the actual hydrogen-to-electricity conversion rate etasObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is1According to the accumulated consumed energy Q of the fuel cell in the previous periodL1Accumulated consumed energy Q of the fuel cell at the present time periodL2Accumulating the hydrogen consumption mass M in the previous periodH1And the accumulated hydrogen consumption mass M of the current periodH2Obtaining;
the computing unit is specifically used for the step S1When the preset mileage threshold value is less than the preset mileage threshold value, the eta is obtained by the following formula1：
Figure FDA0002649456700000041
Wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, the eta is obtained by the following formula1：
Figure FDA0002649456700000042
Figure FDA0002649456700000043
Wherein, UHIs the voltage of the fuel cell, IHThe current at the fuel cell end is the corresponding duration of the current time period and the previous time period;
eta ofsAccording to said QL2And said MH2Obtaining;
the calculation unit is specifically configured to obtain the η by the following formulas：
Figure FDA0002649456700000044
Wherein eta issIs the actual hydrogen-to-electricity conversion rate.
12. The apparatus of claim 10, wherein η is2According to the driving mileage S of the automobile after the starting1Obtaining;
the computing unit is specifically used for the step S1< predetermined mileage threshold, the η2According to initial energy consumption etadAnd the actual energy consumption ηtObtaining the weight;
when said S is1When the mileage threshold is not less than the preset mileage threshold, eta is2Accumulating the consumed energy Q according to the previous periodL3Cumulative energy consumed in the current period QL4The accumulated running mileage S in the previous period2And the accumulated driving mileage S in the current time period3Obtaining;
the computing unit is specifically used for the step S1When the preset mileage threshold value is less than the preset mileage threshold value, the eta is obtained through the following formula2：
Figure FDA0002649456700000051
Wherein S is the preset mileage threshold value;
when said S is1When the mileage threshold is not less than the preset mileage threshold, the eta is obtained through the following formula2：
Figure FDA0002649456700000052
Figure FDA0002649456700000053
Wherein, UHIs the voltage of the fuel cell, IHFor said fuel cell terminal current, UBIs the voltage of the power cell, IBSetting delta t as the current of the power battery terminal, wherein delta t is the corresponding duration of the current time period and the previous time period;
eta oftAccording to said QL3And said S3Obtaining;
the calculation unit is specifically configured to obtain the η by the following formulat：
Figure FDA0002649456700000054
Wherein eta istIs the actual energy consumption.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6625539B1 (en) * 2002-10-22 2003-09-23 Electricab Taxi Company Range prediction in fleet management of electric and fuel-cell vehicles
DE102012214962A1 (en) * 2012-05-21 2013-11-21 Hyundai Motor Company Method for calculating the remaining travel distance for an electric vehicle
EP2987673A1 (en) * 2014-08-19 2016-02-24 General Electric Company Vehicle propulsion system having an energy storage system and optimized method of controlling operation thereof
CN107264324A (en) * 2017-06-30 2017-10-20 北京新能源汽车股份有限公司 Energy control method, device and the fuel cell car of fuel cell car
CN109941111A (en) * 2019-04-28 2019-06-28 广州小鹏汽车科技有限公司 The predictor method and electric car of remaining continual mileage
CN110487563A (en) * 2019-08-22 2019-11-22 广州小鹏汽车科技有限公司 Reliability checking method, device and the test-bed of vehicle
CN110549915A (en) * 2019-08-08 2019-12-10 武汉格罗夫氢能汽车有限公司 Method for estimating driving range of hydrogen fuel cell hybrid new energy vehicle
CN111422070A (en) * 2020-04-08 2020-07-17 江铃重型汽车有限公司 Method and device for detecting endurance mileage and new energy vehicle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6625539B1 (en) * 2002-10-22 2003-09-23 Electricab Taxi Company Range prediction in fleet management of electric and fuel-cell vehicles
DE102012214962A1 (en) * 2012-05-21 2013-11-21 Hyundai Motor Company Method for calculating the remaining travel distance for an electric vehicle
EP2987673A1 (en) * 2014-08-19 2016-02-24 General Electric Company Vehicle propulsion system having an energy storage system and optimized method of controlling operation thereof
CN107264324A (en) * 2017-06-30 2017-10-20 北京新能源汽车股份有限公司 Energy control method, device and the fuel cell car of fuel cell car
CN109941111A (en) * 2019-04-28 2019-06-28 广州小鹏汽车科技有限公司 The predictor method and electric car of remaining continual mileage
CN110549915A (en) * 2019-08-08 2019-12-10 武汉格罗夫氢能汽车有限公司 Method for estimating driving range of hydrogen fuel cell hybrid new energy vehicle
CN110487563A (en) * 2019-08-22 2019-11-22 广州小鹏汽车科技有限公司 Reliability checking method, device and the test-bed of vehicle
CN111422070A (en) * 2020-04-08 2020-07-17 江铃重型汽车有限公司 Method and device for detecting endurance mileage and new energy vehicle

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