CN114056187B - Vehicle endurance mileage calculation method, device, equipment and storage medium - Google Patents

Vehicle endurance mileage calculation method, device, equipment and storage medium Download PDF

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Publication number
CN114056187B
CN114056187B CN202111514059.9A CN202111514059A CN114056187B CN 114056187 B CN114056187 B CN 114056187B CN 202111514059 A CN202111514059 A CN 202111514059A CN 114056187 B CN114056187 B CN 114056187B
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vehicle
working condition
current period
power consumption
endurance mileage
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CN114056187A (en
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鲍幸朝
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Aiways Automobile Co Ltd
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Aiways Automobile Co 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
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to 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
    • 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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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The application provides a vehicle endurance mileage calculation method, device, equipment and storage medium, and relates to the technical field of electric automobiles. The method comprises the following steps: acquiring actual power consumption of a vehicle in a current period; judging the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judging result; and filtering the calculated range of the vehicle in the current period to obtain the actual range. By applying the method and the device, the accuracy of calculating the endurance mileage of the vehicle can be improved.

Description

Vehicle endurance mileage calculation method, device, equipment and storage medium
Technical Field
The application relates to the technical field of electric automobiles, in particular to a method, a device, equipment and a storage medium for calculating a vehicle endurance mileage.
Background
With the enhancement of environmental protection consciousness, electric vehicles are widely popularized. The power battery is a power source of the electric automobile, the endurance mileage is a focus of attention of a user, and the endurance mileage has important guiding significance for the user to reasonably plan a driving route and search a charging pile.
Currently, the whole vehicle controller (VCU, vehicle Control Unit) directly calculates the vehicle range from the actual average power consumption of the vehicle and the remaining energy of the power battery over a period of time.
However, the range of the vehicle, which is determined directly from the actual average power consumption of the vehicle over a period of time, is different from the actual range of the vehicle, resulting in a low accuracy of the determined range of the vehicle.
Disclosure of Invention
The invention aims to provide a method, a device, equipment and a storage medium for calculating the endurance mileage of an electric automobile aiming at the defects in the prior art, and the accuracy of the endurance mileage of the automobile can be improved.
In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:
in a first aspect, an embodiment of the present application provides a method for calculating a range of a vehicle, where the method includes:
acquiring actual power consumption of a vehicle in a current period;
judging the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judging result, wherein the first working condition standard power consumption is smaller than the second working condition standard power consumption;
And filtering the calculated range of the vehicle in the current period to obtain the actual range.
Optionally, the determining the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the determination result includes:
if the actual electricity consumption in the current period is greater than the first working condition standard electricity consumption and less than or equal to the second working condition standard electricity consumption, the method comprises the following steps of: m= (SOC/100%) (n1+w1) calculating a range of the vehicle in the current period;
wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, N1 is the first working condition weighted endurance mileage, and M1 is the second working condition weighted endurance mileage.
Optionally, the first working condition weighted endurance mileage is calculated according to the formula: n1=n t *N M Calculated N t Weighting the coefficient for the first working condition, N M The method comprises the following steps of (1) continuing the voyage mileage for a first working condition;
wherein, the first working condition weighting coefficient is according to the formula: n (N) t Calculating 1- (PC-N)/(W-N), wherein PC is the actual power consumption of the vehicle in the current period, N is the first working condition standard power consumption, and W is the second working condition standard power consumption;
The first working condition endurance mileage is calculated according to the formula: n (N) M Calculated by = (TE/N) ×100, TE is the total electric quantity of the power battery.
Optionally, the second working condition weighted endurance mileage is calculated according to the formula: w1=w t *W M Calculated, W t Weighting the coefficient for the second working condition, W M The second working condition is the endurance mileage;
wherein, the second working condition weighting coefficient is according to the formula: w (W) t Calculated by = (PC-N)/(W-N), where PC is the actual power consumption of the vehicle in the current period, and N is the first power consumptionThe working condition standard electricity consumption is that W is the second working condition standard electricity consumption;
the second working condition endurance mileage is calculated according to the formula: w (W) M Calculated by = (TE/W) ×100, TE is the total electric quantity of the power battery.
Optionally, the determining the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the determination result includes:
if the actual electricity consumption in the current period is smaller than or equal to the first working condition standard electricity consumption, a second formula is adopted: m= (N/PC) × (soc×100%) (te×100/N) calculating a range of the vehicle in the current period;
wherein M is the endurance mileage of the vehicle in the current period, N is the first working condition standard electricity consumption, PC is the actual electricity consumption of the vehicle in the current period, SOC is the residual electric quantity percentage of the power battery of the vehicle in the current period, and TE is the total electric quantity of the power battery.
Optionally, the determining the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the determination result includes:
if the actual electricity consumption in the current period is greater than the second working condition standard electricity consumption, according to a third formula: m= (SOC/100%) (TE 100/PC);
m is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, TE is the total power of the power battery, and PC is the actual power consumption of the vehicle in the current period.
Optionally, the filtering processing for the calculated range of the vehicle in the current period to obtain an actual range includes:
determining a difference value between the continuous voyage mileage of the vehicle in the previous period and the continuous voyage mileage of the vehicle in the current period;
and according to the difference value, a preset filtering time constant and the range of the vehicle in the previous period, filtering the range of the vehicle in the current period to obtain the actual range of the vehicle.
In a second aspect, an embodiment of the present application further provides a vehicle range calculation device, where the device includes:
the acquisition module is used for acquiring the actual power consumption of the vehicle in the current period;
the calculation module is used for judging the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judgment result, wherein the first working condition standard power consumption is smaller than the second working condition standard power consumption;
and the filtering module is used for filtering the calculated range of the vehicle in the current period to obtain the actual range.
Optionally, the calculation module is specifically configured to, if the actual power consumption in the current period is greater than the first working condition standard power consumption and less than or equal to the second working condition standard power consumption, calculate a first equation according to: m= (SOC/100%) (n1+w1) calculating a range of the vehicle in the current period; wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, N1 is the first working condition weighted endurance mileage, and M1 is the second working condition weighted endurance mileage.
Optionally, the first working condition weighted endurance mileage is calculated according to the formula: n1=n t *N M Calculated N t Weighting the coefficient for the first working condition, N M The method comprises the following steps of (1) continuing the voyage mileage for a first working condition; wherein, the first working condition weighting coefficient is according to the formula: n (N) t Calculating 1- (PC-N)/(W-N), wherein PC is the actual power consumption of the vehicle in the current period, N is the first working condition standard power consumption, and W is the second working condition standard power consumption; the first working condition endurance mileage is according toThe formula: n (N) M Calculated by = (TE/N) ×100, TE is the total electric quantity of the power battery.
Optionally, the second working condition weighted endurance mileage is calculated according to the formula: w1=w t *W M Calculated, W t Weighting the coefficient for the second working condition, W M The second working condition is the endurance mileage; wherein, the second working condition weighting coefficient is according to the formula: w (W) t Calculating the power consumption of the vehicle in the current period by using the calculation of the ratio of the power consumption of the vehicle to the power consumption of the vehicle in the current period, wherein the calculated ratio of the power consumption of the vehicle in the current period to the power consumption of the vehicle in the current period is calculated by the ratio of the power consumption of the vehicle in the current period to the power consumption of the vehicle in the current period; the second working condition endurance mileage is calculated according to the formula: w (W) M Calculated by = (TE/W) ×100, TE is the total electric quantity of the power battery.
Optionally, the calculation module is further specifically configured to, if the actual power consumption in the current period is less than or equal to the first working condition standard power consumption, calculate a second formula: m= (N/PC) × (soc×100%) (te×100/N) calculating a range of the vehicle in the current period; wherein M is the endurance mileage of the vehicle in the current period, N is the first working condition standard electricity consumption, PC is the actual electricity consumption of the vehicle in the current period, SOC is the residual electric quantity percentage of the power battery of the vehicle in the current period, and TE is the total electric quantity of the power battery.
Optionally, the calculation module is further specifically configured to, if the actual power consumption in the current period is greater than the second working condition standard power consumption, calculate a third formula: m= (SOC/100%) (TE 100/PC); m is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, TE is the total power of the power battery, and PC is the actual power consumption of the vehicle in the current period.
Optionally, the filtering module is specifically configured to determine a difference value between a range of the vehicle in a previous period and a range of the vehicle in the current period; and according to the difference value, a preset filtering time constant and the range of the vehicle in the previous period, filtering the range of the vehicle in the current period to obtain the actual range of the vehicle.
In a third aspect, an embodiment of the present application provides an electronic device, including: the system comprises a processor, a storage medium and a bus, wherein the storage medium stores machine-readable instructions executable by the processor, when the electronic device is running, the processor and the storage medium are communicated through the bus, and the processor executes the machine-readable instructions to execute the steps of the vehicle range calculation method of the first aspect.
In a fourth aspect, an embodiment of the present application provides a storage medium, where a computer program is stored, where the computer program is executed by a processor to perform the steps of the method for calculating a range of a vehicle in the first aspect.
The beneficial effects of this application are:
the embodiment of the application provides a method, a device, equipment and a storage medium for calculating a vehicle endurance mileage, wherein the method comprises the following steps: acquiring actual power consumption of a vehicle in a current period; judging the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judging result; and filtering the calculated range of the vehicle in the current period to obtain the actual range.
By adopting the vehicle endurance mileage calculation method provided by the embodiment of the application, the first working condition standard power consumption and the second working condition standard power consumption are the power consumption obtained by testing under different working conditions, the first working condition standard power consumption and the second working condition standard power consumption are introduced into the process of calculating the endurance mileage of the vehicle, and the endurance mileage of the vehicle can be calculated according to specific size relations, so that the accuracy of calculating the endurance mileage of the vehicle can be improved when the vehicle runs under different working conditions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a vehicle range calculation system according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a method for calculating a range of a vehicle according to an embodiment of the present application;
fig. 3 is a flow chart of another method for calculating a range of a vehicle according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a vehicle range calculation device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present application, but not all embodiments.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Before explaining the embodiments of the present application in detail, an application scenario of the present application will be described first. The application scene can be a scene for calculating the endurance mileage of the electric vehicle. Fig. 1 is a schematic structural diagram of a vehicle range calculation system provided in an embodiment of the present application, and as shown in fig. 1, the vehicle range calculation system may be referred to as a whole vehicle control system, where the whole vehicle control system may include: the vehicle control unit 101, the vehicle body controller 102 and the battery management system 103, and the vehicle control unit 101 is in communication connection with the vehicle body controller 102 and the battery management system 103, respectively.
The battery management system 103 may be generally indicated by BMS (Battery Management System), and the battery management system 103 may determine a remaining capacity (SOE) of the power battery in each cycle according to characteristic parameters (such as voltage, current, and temperature) of the power battery of the vehicle in each cycle, and send the remaining capacity (SOE) of the power battery in each cycle to the vehicle controller 101. The vehicle body controller 102 may be generally indicated by BCM (Body Control Module). The vehicle body controller 102 may determine an accumulated driving distance of the vehicle in each period according to driving parameters of the vehicle in each period, and send the accumulated driving distance of the vehicle in each period to the vehicle controller 101.
Taking the current period as an example for illustration, the whole vehicle controller 101 may calculate to obtain the actual electricity consumption (PC) of the vehicle in the current period according to the remaining electric quantity of the power battery in the previous period, the remaining electric quantity of the power battery in the current period, and the accumulated driving mileage of the vehicle in the current period, and after obtaining the actual electricity consumption (PC) of the vehicle in the current period, the whole vehicle controller 101 may obtain the actual driving mileage of the vehicle in the current period based on the following embodiment of the present application, and may display the actual driving mileage on an instrument panel of the vehicle, so that a driver may learn the driving mileage of the vehicle in real time, thereby making the driver have sufficient time to search for a charging facility in advance.
The following describes an example of a vehicle range calculation method mentioned in the present application with reference to the accompanying drawings. Fig. 2 is a schematic flow chart of a method for calculating a range of a vehicle according to an embodiment of the present application, and an execution subject of the method may be the above-mentioned vehicle controller 101. As shown in fig. 2, the method may include:
s101, acquiring actual power consumption of the vehicle in a current period.
The preset period (T) may be set according to actual requirements, and the remaining endurance mileage of the vehicle in each period is calculated according to the preset period.
In this case, the present period is taken as an example, and it is known from the above description that the whole vehicle controller may calculate the actual Power Consumption (PC) of the vehicle in the present period according to the remaining power (SOE 1) of the power battery in the previous period, the remaining power (SOE) of the power battery in the present period, and the accumulated driving distance (L) of the vehicle in the present period, and specifically, may calculate the actual Power Consumption (PC) of the vehicle in the present period according to the formula pc= (SOE 1-SOE) x 100/L.
For example, assuming that the remaining power (SOE 1) of the power battery in the previous cycle of the vehicle is 45000Wh, the remaining power (SOE) of the power battery in the current cycle is 44000Wh, and the accumulated driving distance (L) of the vehicle in the current cycle is 7km, the actual power consumption is calculated as hundred km power consumption, and the actual power consumption of the vehicle in the current cycle is about 14.29KWh/100km.
S102, judging the relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judgment result.
The first working condition standard electricity consumption is smaller than the second working condition standard electricity consumption, the first working condition standard electricity consumption is hundred kilometers of electricity consumption (N degrees/100 km) obtained in a NEDC (New European Driving Cycle, new European driving period) testing environment, the second working condition standard electricity consumption is hundred kilometers of electricity consumption (W degrees/100 km) obtained in a WLTC (World Harmonized Light-duty Vehicles Test Procedure, world coordination light vehicle testing program) testing environment, and N is smaller than W.
Judging the magnitude relation between the actual Power Consumption (PC) of the vehicle in the current period and the first working condition standard power consumption (N) and the second working condition standard power consumption (N), wherein the magnitude relation can be any one of the following: and PC is smaller than N, PC and is larger than or equal to N and smaller than W, PC and is larger than W, and the endurance mileage (M) of the vehicle in the current period is calculated according to a specific size relation and a corresponding calculation formula for calculating the endurance mileage.
It can be understood that different working conditions, such as a flat road, an ascending slope, a braking and the like, can be met in the running process of the vehicle, on one hand, the first working condition standard power consumption and the second working condition standard power consumption are the power consumption obtained by testing under different working conditions, the first working condition standard power consumption and the second working condition standard power consumption are introduced into the vehicle, the accuracy of calculating the range of the vehicle can be improved essentially, and on the other hand, the accuracy of calculating the range of the vehicle can be calculated according to specific size relations, so that the accuracy of calculating the range of the vehicle can be further improved.
And S103, filtering the calculated range of the vehicle in the current period to obtain the actual range.
In one possible embodiment, after the range of the vehicle in the current period is obtained, filtering processing can be performed in combination with the range of the vehicle in the period before the current period, for example, filtering processing can be performed on the range of the current period according to the range of the previous period, so that the range of the current period can be associated with the range of the previous period, and the range of each period is prevented from generating more frequent fluctuation.
In summary, in the vehicle range calculation method provided by the application, the first working condition standard power consumption and the second working condition standard power consumption are power consumption obtained by testing under different working conditions, the first working condition standard power consumption and the second working condition standard power consumption are introduced into a range calculation process of the vehicle, and the range of the vehicle can be calculated according to specific size relations, so that the accuracy of calculating the range of the vehicle can be improved when the vehicle runs under different working conditions.
Optionally, the determining the relationship between the actual power consumption and the first working condition standard power consumption and the second working condition standard power consumption in the current period, and calculating the endurance mileage of the vehicle in the current period according to the determination result includes: if the actual electricity consumption in the current period is greater than the first working condition standard electricity consumption and less than or equal to the second working condition standard electricity consumption, the method comprises the following steps of: m= (SOC/100%) (n1+w1) calculates the range of the vehicle in the current period.
Wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, N1 is the first working condition weighted endurance mileage, and M1 is the second working condition weighted endurance mileage.
Specifically, if the actual power consumption in the current period is greater than the first working condition standard power consumption and less than or equal to the second working condition standard power consumption, that is, N < PC is less than or equal to W. In this case, the range of the vehicle in the current period and the remaining power percentage (SOC) of the power battery in the current period, the first operating condition weighted range (N1), and the second operating condition weighted range (M1).
That is, the first operating condition standard electricity consumption (N) and the second operating condition standard electricity consumption (W) are both required to be introduced into the process of calculating the range of the vehicle in the current period, wherein the first operating condition standard electricity consumption (N) is related to an operating condition weighted range (N1), and the second operating condition standard electricity consumption (W) is related to the second operating condition weighted range (M1).
After the SOC, the N1 and the M1 are determined, the endurance mileage of the vehicle in the current period can be calculated according to a first formula, and the relationship between the actual Power Consumption (PC) and N, W in other periods is as follows: and when N is less than or equal to W, calculating according to a first formula to obtain the endurance mileage of the vehicle corresponding to other periods.
Optionally, the first working condition weighted endurance mileage is calculated according to the formula: n1=n t *N M Calculated N t Weighting the coefficient for the first working condition, N M And the first working condition is the endurance mileage. Wherein, the first working condition weighting coefficient is according to the formula: n (N) t Calculated by (1) - (PC-N)/(W-N), where PC is actual power consumption of the vehicle in the current period, N is first working condition standard power consumption, and W is second working condition standard power consumption; the first working condition endurance mileage is calculated according to the formula: n (N) M Calculated by = (TE/N) ×100, TE is the total power of the power battery.
Specifically, according to the formula for calculating the weighting coefficient of the first working condition: n (N) t As can be seen from the equation 1- (PC-N)/(W-N), when the actual Power Consumption (PC) in the current period is closer to the first condition standard power consumption (N), the duty ratio of the vehicle in the current period is calculated by using the first condition standard power consumption (N) to be larger。
For example, assuming that the first operating condition standard power consumption (N) is 12.52KWh/100km, the second operating condition standard power consumption (W) is 16.28KWh/100km, the actual Power Consumption (PC) in the current period is 14.29KWh/100km, the remaining capacity percentage (SOC) of the power battery in the current period is 58.67%, and the total power capacity (TE) of the power battery is 75KWh, according to the formula: n (N) t Calculation of N by =1- (PC-N)/(W-N) t About 0.532, according to the formula: n (N) M = (TE/N) ×100 to calculate N M About 599Km, further, according to the formula: n1=n t *N M The first operating condition weighted range (N1) is calculated to be approximately 318.7Km.
Optionally, the second working condition weighted endurance mileage is calculated according to the formula: w1=w t *W M Calculated, W t Weighting the coefficient for the second working condition, W M The second working condition is the endurance mileage;
wherein, the second working condition weighting coefficient is according to the formula: w (W) t Calculated by the following steps of (PC-N)/(W-N), wherein PC is actual power consumption of the vehicle in the current period, N is first working condition standard power consumption, and W is second working condition standard power consumption; the second working condition endurance mileage is calculated according to the formula: w (W) M Calculated by = (TE/W) ×100, TE is the total power of the power battery.
Specifically, according to the formula for calculating the weighting coefficient of the second working condition: w (W) t As can be seen from = (PC-N)/(W-N), the further the actual electricity consumption (PC) in the current period is from the first working condition standard electricity consumption (N), i.e. the closer the actual electricity consumption (PC) in the current period is to the second working condition standard electricity consumption (W), the larger the duty ratio of the endurance mileage of the vehicle in the current period is calculated by using the second working condition standard electricity consumption (W).
Continuing with the above example, according to the formula: w (W) t = (PC-N)/(W-N) to calculate W t About 0.468, according to the formula: w (W) M = (TE/W) ×100 calculates W M About 460.7 (Km), further, according to the formula: w1=w t *W M The first operating condition weighted range (W1) is calculated to be approximately 215.6Km.
According to the correlation formula for calculating N1 and the correlation formula for calculating W1, the first formula is modified into:
M＝SOC/100％*[(1-(PC-N)/(W-N))*(TE/N)*100+(PC-N)/(W-N)*(TE/W)*100]
continuing with the above example, where N < PC+.ltoreq.W, the range (M) of the vehicle during the current period is approximately equal to 313.5Km.
Optionally, the determining the relationship between the actual power consumption and the first working condition standard power consumption and the second working condition standard power consumption in the current period, and calculating the endurance mileage of the vehicle in the current period according to the determination result includes: if the actual electricity consumption in the current period is smaller than or equal to the first working condition standard electricity consumption, the following second formula is adopted: m= (N/PC) × (soc×100%) (te×100/N) calculates the range of the vehicle in the current period.
Wherein M is the endurance mileage of the vehicle in the current period, N is the first working condition standard electricity consumption, PC is the actual electricity consumption of the vehicle in the current period, SOC is the residual electric quantity percentage of the power battery of the vehicle in the current period, and TE is the total electric quantity of the power battery.
Specifically, if the actual power consumption in the current period is smaller than or equal to the first working condition standard power consumption, namely, the situation that PC is smaller than or equal to N. For example, assuming that the first working condition standard power consumption (N) is 12.52KWh/100km, the second working condition standard power consumption (W) is 16.28KWh/100km, the actual Power Consumption (PC) in the current period is 10KWh/100km, the remaining capacity percentage (SOC) of the power battery in the current period is 60%, and the total electric capacity (TE) of the power battery is 75KWh, the vehicle belongs to the case where PC is less than or equal to N in the current period.
Under the condition that the N, PC, SOC, TE parameter value is known, the endurance mileage (M) of the vehicle in the current period can be calculated according to a second formula:
M＝(N/PC)*(SOC*100％)*(TE*100/N)
the value of the above example is correspondingly taken into the formula, and the endurance mileage of the vehicle in the current period is 450 (Km).
Optionally, the determining the relationship between the actual power consumption and the first working condition standard power consumption and the second working condition standard power consumption in the current period, and calculating the endurance mileage of the vehicle in the current period according to the determination result includes: if the actual electricity consumption in the current period is greater than the standard electricity consumption of the second working condition, according to a third formula: m= (SOC/100%) (TE 100/PC).
Wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, TE is the total power of the power battery, and PC is the actual power consumption of the vehicle in the current period.
Specifically, if the actual power consumption in the current period is greater than the standard power consumption under the second working condition, namely, the condition that PC is greater than W. For example, assuming that the first operating condition standard power consumption (N) is 12.52KWh/100km, the second operating condition standard power consumption (W) is 16.28KWh/100km, the actual Power Consumption (PC) in the current period is 20KWh/100km, the remaining capacity percentage (SOC) of the power battery in the current period is 57.33%, and the total electric capacity (TE) of the power battery is 75KWh, the vehicle belongs to the case where PC > W in the current period.
Under the condition that the SOC, TE, PC parameter value is known, the endurance mileage (M) of the vehicle in the current period can be calculated according to a third formula:
M＝(SOC/100％)*(TE*100/PC)
and if the numerical value in the example is correspondingly brought into the formula, the endurance mileage of the vehicle in the current period is 215Km.
It can be seen that when the actual Power Consumption (PC) in the current period, the first working condition standard power consumption (N) and the second working condition standard power consumption (W) are in different magnitude relations, the corresponding formula is adopted to calculate the range of the vehicle in the current period, so that the accuracy of determining the range of the vehicle can be improved.
Fig. 3 is a flowchart of another vehicle range calculation method according to an embodiment of the present application. Optionally, as shown in fig. 3, the filtering processing on the calculated range of the vehicle in the current period to obtain the actual range includes:
s301, determining a difference value between the range of the vehicle in the previous period and the range of the vehicle in the current period.
The remaining range of the vehicle obtained in each period can be stored in the memory, when the range of the vehicle corresponding to the current period is calculated, the range of the vehicle corresponding to the previous period of the current period can be extracted from the memory, and the range of the vehicle corresponding to the previous period is subtracted from the range of the vehicle corresponding to the current period to obtain a difference value.
S302, according to the difference value, a preset filtering time constant and the range of the vehicle in the previous period, filtering the range of the vehicle in the current period to obtain the actual range of the vehicle.
The preset filtering time constant may be a value between 0 and 1, which is not limited in the application, for example, the preset filtering time constant is 0.05.
For example, assuming that the range (M) of the vehicle corresponding to the current period is 313.5Km, the range (M1) of the vehicle corresponding to the previous period is 450Km, and the preset filter time constant (a) is 0.05, the actual range (S) of the vehicle in the current period can be calculated according to the following formula:
S＝M1-a*(M1-M)
and correspondingly bringing the parameters in the embodiment into the formula to obtain the actual endurance mileage (S) of the vehicle in the current period to be about 443Km.
And the continuous voyage mileage of the vehicle corresponding to the current period is related with the continuous voyage mileage of the vehicle corresponding to the previous week through a filtering time constant, so that frequent fluctuation of the continuous voyage mileage during period transition is avoided.
It can be understood that, the parameters collected in each period and the calculated parameters may be stored in the memory in the form of the following table 1, and it is assumed that three periods exist, period N-1, period N, and period n+1, and as can be seen from table 1, the relationship among PC, N, and W corresponding to period N-1 is: if PC is less than or equal to N, calculating the endurance mileage of the vehicle in the period (N-1) by using the second formula; the relation among PC, N and W corresponding to the period N is as follows: n < PC is less than or equal to W, calculating the endurance mileage of the vehicle in the period (N) by using the first formula; the relationship among PC, N and W corresponding to the period N+1 is as follows: PC > W, the range of the vehicle in the period (n+1) is calculated using the above-mentioned third formula.
TABLE 1
Variable(s) Unit (B) Period N-1 Period N Period n+1
Total electric quantity (TE) Kwh 75 75 75
SOE Wh 45000 44000 43000
SOC ％ 60 58.67 57.33
Accumulated driving mileage (L) km 10 7 5
First working condition standard power consumption (N) kwh/100km 12.52 12.52 12.52
Second working condition standard power consumption (W) kwh/100km 16.28 16.28 16.28
Actual Power Consumption (PC) Kwh/100km 10 14.29 20
First condition weighting factor (N t ) ％ / 53.2 /
Second condition weighting factor (W t ) / 46.8 /
Cruising mileage (M) Km 450 313.5 215
Filtering time constant (a) 0.05 0.05 0.05
Actual endurance mileage (S) Km 450 443 438
Fig. 4 is a schematic structural diagram of a vehicle range calculation device according to an embodiment of the present application. As shown in fig. 4, the apparatus includes:
an obtaining module 401, configured to obtain an actual electricity consumption of the vehicle in a current period;
the calculating module 402 is configured to determine a magnitude relation between an actual power consumption in a current period and a first working condition standard power consumption and a second working condition standard power consumption, and calculate a cruising mileage of the vehicle in the current period according to a determination result;
the filtering module 403 is configured to perform filtering processing on the calculated range of the vehicle in the current period, so as to obtain an actual range.
Optionally, the calculating module 402 is specifically configured to, if the actual power consumption in the current period is greater than the first operating condition standard power consumption and less than or equal to the second operating condition standard power consumption, calculate according to a first formula: m= (SOC/100%) (n1+w1) calculating the endurance mileage of the vehicle in the current period; wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, N1 is the first working condition weighted endurance mileage, and M1 is the second working condition weighted endurance mileage.
Optionally, the first working condition weighted endurance mileage is calculated according to the formula: n1=n t *N M Calculated N t Weighting the coefficient for the first working condition, N M The method comprises the following steps of (1) continuing the voyage mileage for a first working condition; wherein, the first working condition weighting coefficient is according to the formula: n (N) t Calculated by (1) - (PC-N)/(W-N), where PC is actual power consumption of the vehicle in the current period, N is first working condition standard power consumption, and W is second working condition standard power consumption; the first working condition endurance mileage is calculated according to the formula: n (N) M Calculated by = (TE/N) ×100, TE is the total power of the power battery.
Optionally, the second working condition weighted endurance mileage is calculated according to the formula: w1=w t *W M Calculated, W t Weighting the coefficient for the second working condition, W M The second working condition is the endurance mileage; wherein, the second working condition weighting coefficient is according to the formula: w (W) t Calculated by the following steps of (PC-N)/(W-N), wherein PC is actual power consumption of the vehicle in the current period, N is first working condition standard power consumption, and W is second working condition standard power consumption; the second working condition endurance mileage is calculated according to the formula: w (W) M Calculated by = (TE/W) ×100, TE is the total power of the power battery.
Optionally, the calculating module 402 is further specifically configured to, if the actual electricity consumption in the current period is less than or equal to the first operating condition standard electricity consumption, calculate a second formula: m= (N/PC) × (soc×100%) (te×100/N) calculating a range of the vehicle in the current period; wherein M is the endurance mileage of the vehicle in the current period, N is the first working condition standard electricity consumption, PC is the actual electricity consumption of the vehicle in the current period, SOC is the residual electric quantity percentage of the power battery of the vehicle in the current period, and TE is the total electric quantity of the power battery.
Optionally, the calculating module 402 is further specifically configured to, if the actual power consumption in the current period is greater than the second operating condition standard power consumption, calculate according to a third formula: m= (SOC/100%) (TE 100/PC); wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, TE is the total power of the power battery, and PC is the actual power consumption of the vehicle in the current period.
Optionally, the filtering module 403 is specifically configured to determine a difference between a range of the vehicle in a previous period and a range of the vehicle in a current period; and according to the difference value, a preset filtering time constant and the range of the vehicle in the previous period, filtering the range of the vehicle in the current period to obtain the actual range of the vehicle.
The foregoing apparatus is used for executing the method provided in the foregoing embodiment, and its implementation principle and technical effects are similar, and are not described herein again.
The above modules may be one or more integrated circuits configured to implement the above methods, for example: one or more application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASIC), or one or more microprocessors (Digital Signal Processor, abbreviated as DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, abbreviated as FPGA), or the like. For another example, when a module above is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processor that may invoke the program code. For another example, the modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application, as shown in fig. 5, the electronic device may include: processor 501, storage medium 502, and bus 503, storage medium 502 storing machine-readable instructions executable by processor 501, processor 501 executing machine-readable instructions to perform the steps of the method embodiments described above when the electronic device is operating, processor 501 communicates with storage medium 502 via bus 503. The specific implementation manner and the technical effect are similar, and are not repeated here.
Optionally, the present application further provides a storage medium, on which a computer program is stored, which when being executed by a processor performs the steps of the above-mentioned method embodiments.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the indirect coupling or communication connection of devices or elements may be in the form of electrical, mechanical, or otherwise.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (english: processor) to perform part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: u disk, mobile hard disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (5)

1. The method for calculating the endurance mileage of the vehicle is characterized by comprising the following steps of:
acquiring actual power consumption of a vehicle in a current period;
judging the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judging result, wherein the first working condition standard power consumption is smaller than the second working condition standard power consumption;
filtering the calculated range of the vehicle in the current period to obtain an actual range;
the step of judging the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judgment result, wherein the step of calculating the endurance mileage comprises the following steps:
if the actual electricity consumption in the current period is greater than the first working condition standard electricity consumption and less than or equal to the second working condition standard electricity consumption, the method comprises the following steps of: m= (SOC/100%) (n1+w1) calculating a range of the vehicle in the current period;
wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, N1 is the first working condition weighted endurance mileage, and M1 is the second working condition weighted endurance mileage;
The first working condition weighted endurance mileage is calculated according to the formula: n1=n t *N M Calculated N t Weighting the coefficient for the first working condition, N M The method comprises the following steps of (1) continuing the voyage mileage for a first working condition;
wherein, the first working condition weighting coefficient is according to the formula: n (N) t Calculating 1- (PC-N)/(W-N), wherein PC is the actual power consumption of the vehicle in the current period, N is the first working condition standard power consumption, and W is the second working condition standard power consumption;
the first working condition endurance mileage is calculated according to the formula: n (N) M Calculated by = (TE/N) ×100, TE is the total electric quantity of the power battery;
the second working condition weighted endurance mileage is calculated according to the formula: w1=w t *W M Calculated, W t Weighting the coefficient for the second working condition, W M The second working condition is the endurance mileage;
wherein, the second working condition weighting coefficient is according to the formula: w (W) t Calculating the power consumption of the vehicle in the current period by using the calculation of the ratio of the power consumption of the vehicle to the power consumption of the vehicle in the current period, wherein the calculated ratio of the power consumption of the vehicle in the current period to the power consumption of the vehicle in the current period is calculated by the ratio of the power consumption of the vehicle in the current period to the power consumption of the vehicle in the current period;
the saidThe second working condition endurance mileage is calculated according to the formula: w (W) M Calculated by = (TE/W) ×100, TE is the total electric quantity of the power battery;
the step of judging the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judgment result, wherein the step of calculating the endurance mileage comprises the following steps:
If the actual electricity consumption in the current period is smaller than or equal to the first working condition standard electricity consumption, a second formula is adopted: m= (N/PC) × (soc×100%) (te×100/N) calculating a range of the vehicle in the current period;
wherein M is the endurance mileage of the vehicle in the current period, N is the first working condition standard electricity consumption, PC is the actual electricity consumption of the vehicle in the current period, SOC is the residual electric quantity percentage of the power battery of the vehicle in the current period, and TE is the total electric quantity of the power battery;
the step of judging the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judgment result, wherein the step of calculating the endurance mileage comprises the following steps:
if the actual electricity consumption in the current period is greater than the second working condition standard electricity consumption, according to a third formula: m= (SOC/100%) (TE 100/PC);
wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, TE is the total power of the power battery, and PC is the actual power consumption of the vehicle in the current period;
The first working condition standard electricity consumption is hundred kilometers of electricity consumption obtained in a new European driving period test environment, and the second working condition standard electricity consumption is hundred kilometers of electricity consumption obtained in a world coordination light vehicle test program test environment.
2. The method according to claim 1, wherein the filtering the calculated range of the vehicle in the current period to obtain an actual range includes:
determining a difference value between the continuous voyage mileage of the vehicle in the previous period and the continuous voyage mileage of the vehicle in the current period;
and according to the difference value, a preset filtering time constant and the range of the vehicle in the previous period, filtering the range of the vehicle in the current period to obtain the actual range of the vehicle.
3. A vehicle range calculation apparatus, the apparatus comprising:
the acquisition module is used for acquiring the actual power consumption of the vehicle in the current period;
the calculation module is used for judging the magnitude relation between the actual power consumption in the current period and the first working condition standard power consumption and the second working condition standard power consumption, and calculating the endurance mileage of the vehicle in the current period according to the judgment result, wherein the first working condition standard power consumption is smaller than the second working condition standard power consumption;
The filtering module is used for filtering the calculated range of the vehicle in the current period to obtain the actual range;
the calculation module is further configured to, if the actual power consumption in the current period is greater than the first working condition standard power consumption and less than or equal to the second working condition standard power consumption, calculate a first equation according to: m= (SOC/100%) (n1+w1) calculating the endurance mileage of the vehicle in the current period; wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, N1 is the first working condition weighted endurance mileage, and M1 is the second working condition weighted endurance mileage;
the first working condition weighted endurance mileage is calculated according to the formula: n1=n t *N M Calculated N t Weighting the coefficient for the first working condition, N M The method comprises the following steps of (1) continuing the voyage mileage for a first working condition; wherein, the first working condition weighting coefficient is according to the formula: n (N) t Calculated by =1- (PC-N)/(W-N), PC isThe actual power consumption of the vehicle in the current period is that N is the standard power consumption of the first working condition, and W is the standard power consumption of the second working condition; the first working condition endurance mileage is calculated according to the formula: n (N) M Calculated by = (TE/N) ×100, TE is the total electric quantity of the power battery;
The second working condition weighted endurance mileage is calculated according to the formula: w1=w t *W M Calculated, W t Weighting the coefficient for the second working condition, W M The second working condition is the endurance mileage; wherein, the second working condition weighting coefficient is according to the formula: w (W) t Calculated by the following steps of (PC-N)/(W-N), wherein PC is actual power consumption of the vehicle in the current period, N is first working condition standard power consumption, and W is second working condition standard power consumption; the second working condition endurance mileage is calculated according to the formula: w (W) M Calculated by = (TE/W) ×100, TE is the total electric quantity of the power battery;
the calculation module is further configured to, if the actual power consumption in the current period is less than or equal to the first operating condition standard power consumption, calculate a second formula: m= (N/PC) × (soc×100%) (te×100/N) calculating a range of the vehicle in the current period; wherein M is the endurance mileage of the vehicle in the current period, N is the first working condition standard electricity consumption, PC is the actual electricity consumption of the vehicle in the current period, SOC is the residual electric quantity percentage of the power battery of the vehicle in the current period, and TE is the total electric quantity of the power battery;
the calculation module is further configured to, if the actual power consumption in the current period is greater than the second working condition standard power consumption, calculate a third formula: m= (SOC/100%) (TE 100/PC) calculating a range of the vehicle in the current period; wherein M is the endurance mileage of the vehicle in the current period, SOC is the remaining power percentage of the power battery of the vehicle in the current period, TE is the total power of the power battery, and PC is the actual power consumption of the vehicle in the current period;
The first working condition standard electricity consumption is hundred kilometers of electricity consumption obtained in a new European driving period test environment, and the second working condition standard electricity consumption is hundred kilometers of electricity consumption obtained in a world coordination light vehicle test program test environment.
4. An electronic device, comprising: a processor, a storage medium, and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating over the bus when the electronic device is operating, the processor executing the machine-readable instructions to perform the steps of the vehicle range calculation method of claim 1 or 2.
5. A storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the vehicle range calculation method according to claim 1 or 2.
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