CN115570980B - Method and device for displaying endurance mileage of electric vehicle, computer equipment and storage medium - Google Patents
Method and device for displaying endurance mileage of electric vehicle, computer equipment and storage medium Download PDFInfo
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/16—Type of output information
- B60K2360/167—Vehicle dynamics information
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The application relates to a method, a device, computer equipment and a storage medium for displaying the endurance mileage of an electric vehicle, wherein the method for displaying the endurance mileage of the electric vehicle comprises the steps of obtaining the current state of charge and obtaining the residual electric quantity by calculating according to the state of charge; obtaining the real endurance mileage of the vehicle according to the comprehensive average energy consumption of the unit mileage of the whole vehicle and the residual electric quantity; when the state of charge is greater than a first limit value, in at least one state of charge stage, carrying out gradient adjustment on the current meter display range to obtain a corrected meter display range so as to reduce the difference value between the meter display range and the real range; when the state of charge is smaller than or equal to a first limit value, outputting and displaying the real endurance mileage as an apparent endurance mileage of the meter; by adopting the scheme of the application, the problem that the electric vehicle has large deviation between the display range of the low-power meter and the actual driving range in the prior art can be solved.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a method and a device for displaying the endurance mileage of an electric vehicle, computer equipment and a storage medium.
Background
At present, an electric automobile generally displays a driving mileage with a fixed value when full power, the fixed value is obtained through calculation of full power and working condition energy consumption, namely, the fixed value is calculated according to unit mileage power consumption obtained through testing under a CLTC (CHINA LIGHT-duty VEHICLE TEST CYCLE, chinese light vehicle testing cycle) or NEDC (New European DRIVING CYCLE ) standard, the working condition energy consumption is not influenced by driving behaviors of a user, and in the driving process, the working condition energy consumption is adopted to calculate the meter display driving mileage, so that the meter display driving mileage is linearly reduced along with the driving.
Under more conditions, the estimated range of the automobile is influenced by driving behaviors of the user and environmental factors, the electric quantity gradually decreases along with the progress of driving, and the deviation of the apparent range and the actual range is generated, so that the planning of a driving plan of the user in a low-electric-quantity state is not facilitated.
Disclosure of Invention
Based on the method, the device, the computer equipment and the storage medium for displaying the endurance mileage of the electric vehicle are provided, and the problem that the deviation between the endurance mileage of the electric vehicle in a low-power meter and the actual endurance mileage is large in the prior art is solved.
In one aspect, a method for displaying a range of an electric vehicle is provided, the method comprising:
acquiring a current state of charge, and calculating to obtain the residual electric quantity according to the state of charge;
Obtaining the real endurance mileage of the vehicle according to the comprehensive average energy consumption of the unit mileage of the whole vehicle and the residual electric quantity, wherein the comprehensive average energy consumption is obtained by calculation according to the historical mileage and the historical energy consumption;
when the state of charge is greater than a first limit value, in at least one state of charge stage, carrying out gradient adjustment on the current meter display range to obtain a corrected meter display range so as to reduce the difference value between the meter display range and the real range;
And when the state of charge is smaller than or equal to a first limit value, outputting and displaying the real endurance mileage as the meter display endurance mileage.
In one embodiment, the reducing the difference between the apparent range and the actual range includes:
And when the state of charge is smaller than the second limit value and larger than the first limit value, the apparent range is subjected to numerical adjustment according to a target adjustment amount when the state of charge changes by a preset gradient amount, wherein the target adjustment amount comprises a first adjustment amount and a second adjustment amount.
In one embodiment, when the state of charge is less than a second limit and greater than or equal to a third limit, the second adjustment amount is obtained according to the following method:
calculating according to the first adjustment amount to obtain a predicted first mileage when the state of charge is reduced from a first limit value to zero electricity;
calculating according to the comprehensive average energy consumption to obtain an estimated second mileage when the state of charge is reduced to zero from a first limit value;
Obtaining a first mileage difference value according to the estimated first mileage and the estimated second mileage;
determining a state of charge difference between the current state of charge and the first limit according to the current state of charge;
And calculating and obtaining a second adjustment quantity of the apparent endurance mileage when the state of charge parameter changes by a preset gradient quantity according to the first mileage difference value and the state of charge difference value.
In one embodiment, when the state of charge is less than a third limit and greater than the first limit, the second adjustment is obtained according to the following method:
calculating to obtain a second mileage difference value according to the current real mileage and the current apparent mileage;
and calculating and obtaining a second adjustment quantity of the apparent range of the meter when the state of charge changes by a preset gradient quantity according to a second mileage difference value and the state of charge difference value.
In one embodiment, further comprising: and when the state of charge is greater than or equal to a second limit value, the table display range is subjected to numerical adjustment according to a target adjustment amount when the state of charge changes by a preset gradient amount, wherein the target adjustment amount comprises a first adjustment amount.
In one embodiment, the first adjustment is calculated as the following mathematical expression:
wherein N is a first adjustment quantity, Q 100％soc is the full electric quantity of the vehicle, E std is the working condition energy consumption of unit mileage of the vehicle, and G n is the number of gradient changes within the range of 0% -100% of the state of charge of the vehicle.
In one embodiment, when the state of charge is less than a second limit and greater than a first limit, a numerical determination is made as to whether the target adjustment amount is greater than a limit;
and if so, carrying out numerical adjustment on the apparent range according to the limit value.
In another aspect, there is provided an electric vehicle range display apparatus, the apparatus including:
The acquisition module is used for acquiring the current state of charge;
The calculation module is used for calculating and obtaining the residual electric quantity according to the state of charge, and calculating and obtaining the real endurance mileage of the vehicle according to the comprehensive average energy consumption of the unit mileage of the whole vehicle and the residual electric quantity, wherein the comprehensive average energy consumption is obtained according to the historical mileage and the historical energy consumption;
The display module is used for obtaining corrected meter display range according to gradient adjustment on the current meter display range in at least one charge state stage when the charge state is larger than a first limit value (20%), so as to reduce the difference value between the meter display range and the real range; and the real endurance mileage is used as the meter display endurance mileage to be output and displayed when the state of charge is smaller than or equal to a first limit value.
In one aspect, a computer device is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the electric vehicle range display method when the computer program is executed.
There is also provided a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the steps of the electric vehicle range display method.
According to the method, the device, the computer equipment and the storage medium for displaying the electric vehicle range, the real range which can be driven by the vehicle in the current state of charge is estimated through the comprehensive average energy consumption of the unit range of the whole vehicle and the residual electric quantity, when the state of charge is larger than the preset first limit value, the real range is gradually close to the real range through gradient adjustment, jump of the apparent range of the meter is avoided, and under the condition of low electric quantity, the calculated real range is output and displayed, so that accurate range information is provided for a user.
Drawings
FIG. 1 is a flow chart of a method for displaying a range of an electric vehicle in one embodiment;
Fig. 2 is a flow chart of a method for displaying a range of an electric vehicle according to another embodiment;
FIG. 3 is a graph of the range of an electric vehicle meter in one embodiment;
FIG. 4 is a block diagram illustrating a driving range display device of an electric vehicle according to an embodiment;
fig. 5 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The method for displaying the endurance mileage of the electric vehicle, which is provided by the application, can be applied to the main current electric vehicle type in the current market, the full electric mileage calculated according to the working condition energy consumption (CLTC or NEDC) is used as the meter to display the endurance mileage, the constant value is generally fixed, and then the display endurance mileage is linearly reduced along with the state of charge, and the influence of the driving behavior of a user is avoided.
If the user runs under the road conditions and scenes close to the CLTC or NEDC working conditions, the apparent range of the meter is very close to the actual range, and the user can be effectively given with a range indication, but under many conditions, the actual running range of the vehicle is influenced by factors such as driving behaviors, additional electric appliances, road conditions and the like, and along with the running, the deviation occurs with the apparent range of the meter, and the user cannot be effectively guided.
The method for displaying the range of the electric vehicle is applied to the pure electric vehicle with the full-electric-meter range of a fixed value, so that the problem that the deviation between the meter range and the real range is large due to the fact that the pure electric vehicle adopts the range value corresponding to the energy consumption (CLTC or NEDC) of the display working condition is solved. The following description will be given by taking an example that the actual driving energy consumption of the user is higher than the working condition energy consumption.
In one embodiment, as shown in fig. 1, there is provided a method for displaying a range of an electric vehicle, including the steps of:
and step 101, acquiring the current state of charge, and calculating to acquire the residual electric quantity according to the state of charge.
In a pure electric vehicle, the remaining power can be calculated according to the following mathematical expression:
Q＝P*SOH*SOC
wherein Q is the residual electric quantity, P is the rated electric quantity of the battery pack, SOH is the health state of the battery pack, and SOC is the state of charge.
In the mathematical expression, the obtaining modes of the rated power P and the health state SOH can refer to the prior art, and are not repeated here.
And 102, obtaining the real endurance mileage of the vehicle according to the comprehensive average energy consumption of the unit mileage of the whole vehicle and the residual electric quantity, wherein the comprehensive average energy consumption is obtained by calculation according to the historical mileage and the historical energy consumption of the vehicle.
For example, the vehicle may average the accumulated energy consumption over a distance to obtain a composite average energy consumption over the distance.
In one embodiment, the integrated average energy consumption is obtained by performing weighted calculation according to historical average energy consumption in a plurality of different mileage values, for example, calculating instantaneous power of the vehicle in a non-charging state based on discharge current and voltage of a battery pack, integrating the power to obtain energy consumption of the vehicle in a certain time, obtaining a running distance of the vehicle through vehicle speed integration, obtaining cumulative energy consumption of the vehicle of 100km recently and cumulative energy consumption of the vehicle of 10km recently by the relation between the energy consumption and the running distance, and respectively averaging the two energy consumption values to obtain average energy consumption A of the vehicle of 100km recently and average energy consumption B of the vehicle of 10km recently.
And obtaining the average energy consumption C of the whole vehicle through weighting calculation of the average energy consumption value A, B, wherein the weighting coefficient of A is E, the weighting coefficient of B is (1-E), and the average energy consumption D=A, E+B (1-E) of the vehicle is finally calculated through weighting.
The weighting calculation has the advantages that the comprehensive average energy consumption obtained by calculation can reflect the influence of factors such as road conditions, driving behaviors and the like on the historical power consumption, and cannot severely fluctuate, so that the final display effect is influenced.
Step 103, according to the range of the current state of charge, adjusting and displaying the apparent range according to a corresponding mode, including:
a first limit value of the state of charge SOC, for example 20%, is preset.
When the state of charge is greater than the first limit value by 20%, in at least one state of charge stage, carrying out gradient adjustment on the current meter display range to obtain a corrected meter display range so as to reduce the difference value between the meter display range and the real range;
and when the state of charge is less than or equal to 20% of the first limit value, outputting and displaying the real endurance mileage as the meter display endurance mileage.
In the full-power state, the meter display range is calculated according to the working condition energy consumption, if the user runs under the road condition close to the CLTC or NEDC working condition, the meter display range can effectively give the user a range indication, but the initial deviation exists between the calculated range according to the historical energy consumption and the meter display range.
After driving behavior starts, when the electric quantity is higher, the apparent range of the meter is higher, and the scheme of the application adopts the manner of gradient descent of the apparent range of the meter to be close to the actual range so as to reduce the difference value between the apparent range of the meter and the actual range.
It can be understood that the gradient adjustment amount of the apparent range is related to the difference between the apparent range and the actual range, and the larger the difference is, the larger the adjustment amount is, and vice versa.
And when the electric quantity is low, the real endurance mileage calculated according to the historical mileage and the historical energy consumption of the vehicle is directly displayed, so that the apparent endurance mileage is more accurate, and the charging or short-distance driving arrangement of a user is facilitated.
On the other hand, the difference between the apparent range and the real range is reduced before the first limit value, so that the change of the display value of the apparent range is smoother, and jump is avoided.
In one embodiment, when the state of charge is less than the second limit value and greater than the first limit value, the apparent range is adjusted numerically according to a target adjustment amount when the state of charge is changed by a preset gradient amount, the target adjustment amount including a first adjustment amount and a second adjustment amount.
Illustratively, the second limit may be any value from 100% to before the first limit, and the second limit is described below as 90%.
When the vehicle starts running with full power, the SOC is reduced by 0.1% each time, the apparent range is adjusted once, the first adjustment amount is a fixed amount, and can be regarded as the basic amount of the apparent range in adjustment, and the following mathematical expression calculation can be adopted:
wherein N is a first adjustment quantity, Q 100％soc is the full electric quantity of the vehicle, E std is the working condition energy consumption of unit mileage of the vehicle, and G n is the number of gradient changes within the range of 0% -100% of the state of charge of the vehicle.
In this embodiment, G n is 1000.
If the apparent endurance mileage is reduced in a gradient manner according to the first adjustment amount, the reduction curve is consistent with the prior art.
The second adjustment amount is used for carrying out additional adjustment on the basis of the first adjustment amount so as to reduce the difference value between the real endurance mileage and the apparent endurance mileage of the meter.
In one embodiment, the state of charge range between the first limit value and the second limit value is divided into a plurality of stages, the second adjustment amount is calculated according to different calculation methods, and different catching-up modes are adopted in different SOC stages, so that the whole catching-up process can be smoother.
Illustratively, as shown in fig. 2, a midpoint value 55% between the first limit value 20% and the second limit value 90% is defined as a third limit value, and when the state of charge is less than 90% and equal to or greater than 55%, the second adjustment amount is obtained according to the following method:
1) Calculating according to the first adjustment quantity N to obtain an estimated first mileage K when the state of charge is reduced to zero electricity from a first limit value of 20 percent:
K＝N*10*20；
2) Calculating according to the comprehensive average energy consumption D to obtain an estimated second mileage S when the state of charge is reduced to zero from a first limit value:
S＝R/D；
Wherein R is the true charge based on 20% of the battery pack state of charge, and r=p×soh×20%.
3) Obtaining a first mileage difference value T according to the estimated first mileage K and the estimated second mileage S:
T＝K-S；
4) Determining a state of charge difference U between the current state of charge and the first limit value according to the current state of charge:
U = current state of charge SOC value-20%;
5) Calculating and obtaining a second adjustment quantity W1 of the apparent endurance mileage of the meter when the state of charge parameter changes by a preset gradient according to the first mileage difference value T and the state of charge difference value U:
W1＝T/(U*1000)。
In the process of the SOC falling from 90% to 55%, the apparent range is additionally adjusted based on the second adjustment amount W1, so that the apparent range gradually approaches to the real range, and the apparent range is prevented from falling to the real range rapidly.
In one embodiment, when the state of charge is less than the third limit and greater than the first limit, the second adjustment is obtained according to the following method:
a) Calculating to obtain a second mileage difference Z according to the current real mileage and the current apparent mileage;
B) And calculating and obtaining a second adjustment W2 of the apparent range of the meter when the state of charge changes by a preset gradient according to a second mileage difference value and the state of charge difference value.
In the process that the SOC is reduced from 55% to 20%, the apparent range of the meter gradually approaches to the real range, and the numerical value of the apparent range of the meter is equal to the numerical value of the real range when the SOC is 20%, so that jump of the SOC is avoided when the SOC is 20%.
In one embodiment, when the state of charge is equal to or greater than a second limit value, the measured range is adjusted according to the first adjustment amount when the state of charge changes by a preset gradient amount.
It is understood that the additional adjustment amount is 0 when SOC is 90 or more.
When the SOC is more than or equal to 55% and less than 90, the first mileage difference is calculated based on the electric quantity when the charge state of the battery pack is 20%, the number of the sustained mileage is reduced, and the first mileage difference is smaller, so that the value of the second adjustment quantity W1 in the stage is generally lower, and the excessive reduction of the apparent mileage is avoided.
As shown in fig. 3, the change curve of the apparent range is shown in the above embodiment. The method for displaying the endurance mileage of the electric vehicle has the characteristics of long endurance mileage display when the electric quantity is high and endurance accuracy display when the electric quantity is low.
In one embodiment, when the SOC is 20% < 90%, the gradient descent amount is subjected to threshold value limiting in the process of gradient descent of the apparent range, jump is avoided, and when the calculated target adjustment amount is greater than the limit value, descent is performed only according to the limit value each time, and the limit value can be generally set as 50% of the upward floating on the basis of N.
On the other hand, when the state of charge SOC is less than or equal to 20%, outputting the real endurance mileage M, and limiting the output value to prevent jump, specifically:
The difference value between the current meter display range and the calculated real range is within the N value or the calculated real range is larger than the current meter display range, and the charge state is reduced by 0.1% without changing the meter display range;
On the other hand, when the difference between the current display range and the calculated real range is larger than the N value but smaller than 1km, the display range is switched to the real range when the state of charge is reduced by 0.1%.
In still another aspect, the current displayed range is reduced by 1km when the state of charge is reduced by 0.1% by a difference between the current displayed range and the calculated real range being greater than 1km.
It should be understood that, although the steps in the flowcharts of fig. 1-2 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 1-2 may include multiple sub-steps or phases that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the sub-steps or phases are performed necessarily occur sequentially, but may be performed alternately or alternately with at least a portion of the sub-steps or phases of other steps or other steps.
In one embodiment, as shown in fig. 4, there is provided a range display device of an electric vehicle, including: the device comprises an acquisition module, a calculation module and a display module, wherein:
The acquisition module is used for acquiring the current state of charge;
The calculation module is used for calculating and obtaining the residual electric quantity according to the state of charge, and calculating and obtaining the real endurance mileage of the vehicle according to the comprehensive average energy consumption of the unit mileage of the whole vehicle and the residual electric quantity, wherein the comprehensive average energy consumption is obtained according to the historical mileage and the historical energy consumption;
The display module is used for obtaining corrected apparent range according to gradient adjustment on the current apparent range in at least one charge state stage when the charge state is larger than a first limit value so as to reduce the difference value between the apparent range and the real range; and the real endurance mileage is used as the meter display endurance mileage to be output and displayed when the state of charge is smaller than or equal to a first limit value.
According to the electric vehicle range display device, the real range which can be driven by the vehicle under the current state of charge is estimated through the comprehensive average energy consumption of the unit range of the whole vehicle and the residual electric quantity, when the state of charge is larger than the preset first limit value, the real range is gradually close to the real range through gradient adjustment, jump of the real range is avoided, the calculated real range is output and displayed under the condition of low electric quantity, and accurate range information is provided for a user.
In one embodiment, when the state of charge is smaller than the second limit value and larger than the first limit value, the display module adjusts the displayed mileage according to the first adjustment amount and the second adjustment amount when the state of charge changes by a preset gradient amount.
Illustratively, the second adjustment is obtained according to the following method:
calculating according to the first adjustment amount to obtain a predicted first mileage when the state of charge is reduced from a first limit value to zero electricity;
calculating according to the comprehensive average energy consumption to obtain an estimated second mileage when the state of charge is reduced to zero from a first limit value;
Obtaining a first mileage difference value according to the estimated first mileage and the estimated second mileage;
determining a state of charge difference between the current state of charge and the first limit according to the current state of charge;
And calculating and obtaining a second adjustment quantity of the apparent endurance mileage when the state of charge parameter changes by a preset gradient quantity according to the first mileage difference value and the state of charge difference value.
In another embodiment, the second adjustment is obtained according to the following method:
calculating to obtain a second mileage difference value according to the current real mileage and the current apparent mileage;
and calculating and obtaining a second adjustment quantity of the apparent range of the meter when the state of charge changes by a preset gradient quantity according to a second mileage difference value and the state of charge difference value.
It is understood that the two methods may be applied separately or in combination, for example, when the state of charge is less than the second limit and greater than or equal to the third limit, the second adjustment amount is obtained in the first manner, and when the state of charge is less than the third limit and greater than the first limit, the second adjustment amount is obtained in the second manner.
The first adjustment amount is calculated according to the following mathematical expression:
wherein N is a first adjustment quantity, Q 100％soc is the full electric quantity of the vehicle, E std is the working condition energy consumption of unit mileage of the vehicle, and G n is the number of gradient changes within the range of 0% -100% of the state of charge of the vehicle.
And the display module is also used for carrying out numerical adjustment according to the first adjustment amount when the state of charge changes by a preset gradient amount when the state of charge is larger than or equal to a second limit value.
The specific limitation of the electric vehicle range display device can be referred to the limitation of the electric vehicle range display method, and the description thereof is omitted herein. All or part of the modules in the electric vehicle range display device can be realized by software, hardware and combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a terminal, and the internal structure of which may be as shown in fig. 5. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program when executed by the processor is used for realizing the method for displaying the endurance mileage of the electric vehicle. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in FIG. 5 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, a computer device is provided comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of when executing the computer program:
step A, acquiring a current state of charge, and calculating to obtain the residual electric quantity according to the state of charge;
step B, obtaining the real endurance mileage of the vehicle according to the comprehensive average energy consumption of the unit mileage of the whole vehicle and the residual electric quantity, wherein the comprehensive average energy consumption is obtained by calculation according to the historical mileage and the historical energy consumption;
Step C, when the state of charge is larger than a first limit value, in at least one state of charge stage, carrying out gradient adjustment on the current meter display range to obtain a corrected meter display range so as to reduce the difference value between the meter display range and the real range; or alternatively, the first and second heat exchangers may be,
And when the state of charge is smaller than or equal to a first limit value, outputting and displaying the real endurance mileage as the meter display endurance mileage.
In one embodiment, the processor when executing the computer program further performs the steps of: and when the state of charge is greater than or equal to a second limit value, the table display range is subjected to numerical adjustment according to a first adjustment amount when the state of charge changes by a preset gradient amount.
The first adjustment is calculated according to the following mathematical expression:
wherein N is a first adjustment quantity, Q 100％soc is the full electric quantity of the vehicle, E std is the working condition energy consumption of unit mileage of the vehicle, and G n is the number of gradient changes within the range of 0% -100% of the state of charge of the vehicle.
In one embodiment, the processor when executing the computer program further performs the steps of:
When the state of charge is smaller than the second limit value and larger than or equal to the third limit value, calculating according to the first adjustment value to obtain an estimated first mileage when the state of charge is reduced from the first limit value to zero electricity; calculating according to the comprehensive average energy consumption to obtain an estimated second mileage when the state of charge is reduced to zero from a first limit value; obtaining a first mileage difference value according to the estimated first mileage and the estimated second mileage; determining a state of charge difference between the current state of charge and the first limit according to the current state of charge; and calculating and obtaining a second adjustment quantity of the apparent endurance mileage when the state of charge parameter changes by a preset gradient quantity according to the first mileage difference value and the state of charge difference value.
And when the state of charge changes by a preset gradient amount, carrying out numerical adjustment according to the sum of the first adjustment amount and the second adjustment amount.
In another embodiment, the processor when executing the computer program further performs the steps of:
When the state of charge is smaller than a third limit value and larger than the first limit value, calculating to obtain a second mileage difference value according to the current real mileage and the current meter display mileage; and calculating to obtain a second adjustment amount according to the second mileage difference value and the state of charge difference value, and carrying out numerical adjustment according to the sum of the first adjustment amount and the second adjustment amount when the state of charge changes by a preset gradient amount.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
step A, acquiring a current state of charge, and calculating to obtain the residual electric quantity according to the state of charge;
step B, obtaining the real endurance mileage of the vehicle according to the comprehensive average energy consumption of the unit mileage of the whole vehicle and the residual electric quantity, wherein the comprehensive average energy consumption is obtained by calculation according to the historical mileage and the historical energy consumption;
Step C, when the state of charge is larger than a first limit value, in at least one state of charge stage, carrying out gradient adjustment on the current meter display range to obtain a corrected meter display range so as to reduce the difference value between the meter display range and the real range; or alternatively, the first and second heat exchangers may be,
And when the state of charge is smaller than or equal to a first limit value, outputting and displaying the real endurance mileage as the meter display endurance mileage.
In one embodiment, the computer program when executed by the processor further performs the steps of: and when the state of charge is greater than or equal to a second limit value, the table display range is subjected to numerical adjustment according to a first adjustment amount when the state of charge changes by a preset gradient amount.
In one embodiment, the computer program when executed by the processor further performs the steps of: and when the state of charge is smaller than the second limit value and larger than the first limit value, the apparent range is subjected to numerical adjustment according to the first adjustment amount and the second adjustment amount when the state of charge changes by a preset gradient amount.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (8)
1. The method for displaying the endurance mileage of the electric vehicle is characterized by comprising the following steps of:
acquiring a current state of charge, and calculating to obtain the residual electric quantity according to the state of charge;
Obtaining the real endurance mileage of the vehicle according to the comprehensive average energy consumption of the unit mileage of the whole vehicle and the residual electric quantity, wherein the comprehensive average energy consumption is obtained by calculation according to the historical mileage and the historical energy consumption;
when the state of charge is greater than a first limit value, in at least one state of charge stage, carrying out gradient adjustment on the current meter display range to obtain a corrected meter display range so as to reduce the difference value between the meter display range and the real range;
when the state of charge is smaller than or equal to a first limit value, outputting and displaying the real endurance mileage as an apparent endurance mileage of the meter;
the reducing the difference between the apparent range and the actual range comprises:
When the state of charge is smaller than a second limit value and larger than a first limit value, the apparent range is subjected to numerical adjustment according to a target adjustment amount when the state of charge changes by a preset gradient amount, wherein the target adjustment amount comprises a first adjustment amount and a second adjustment amount;
wherein when the state of charge is less than a second limit value and greater than or equal to a third limit value, the second adjustment amount is obtained according to the following method:
calculating according to the first adjustment amount to obtain a predicted first mileage when the state of charge is reduced from a first limit value to zero electricity;
calculating according to the comprehensive average energy consumption to obtain an estimated second mileage when the state of charge is reduced to zero from a first limit value;
Obtaining a first mileage difference value according to the estimated first mileage and the estimated second mileage;
determining a state of charge difference between the current state of charge and the first limit according to the current state of charge;
And calculating and obtaining a second adjustment quantity of the apparent endurance mileage when the state of charge parameter changes by a preset gradient quantity according to the first mileage difference value and the state of charge difference value.
2. The electric vehicle range display method according to claim 1, wherein when the state of charge is smaller than a third limit value and larger than a first limit value, the second adjustment amount is obtained according to the following method:
calculating to obtain a second mileage difference value according to the current real mileage and the current apparent mileage;
and calculating and obtaining a second adjustment quantity of the apparent range of the meter when the state of charge changes by a preset gradient quantity according to a second mileage difference value and the state of charge difference value.
3. The method for displaying range of an electric vehicle according to any one of claim 1, further comprising: and when the state of charge is greater than or equal to a second limit value, the table display range is subjected to numerical adjustment according to a target adjustment amount when the state of charge changes by a preset gradient amount, wherein the target adjustment amount comprises a first adjustment amount.
4. The method for displaying a range of an electric vehicle according to any one of claims 1 to 3, wherein the first adjustment amount is calculated according to the following mathematical expression:
wherein N is a first adjustment quantity, Q 100％soc is the full electric quantity of the vehicle, E std is the working condition energy consumption of unit mileage of the vehicle, and G n is the number of gradient changes within the range of 0% -100% of the state of charge of the vehicle.
5. The electric vehicle range display method according to any one of claims 1 to 3, characterized in that, when the state of charge is smaller than a second limit value and larger than a first limit value, a numerical value judges whether the target adjustment amount is larger than a limit value;
and if so, carrying out numerical adjustment on the apparent range according to the limit value.
6. An electric vehicle range display device, the device comprising:
The acquisition module is used for acquiring the current state of charge;
The calculation module is used for calculating and obtaining the residual electric quantity according to the state of charge, and calculating and obtaining the real endurance mileage of the vehicle according to the comprehensive average energy consumption of the unit mileage of the whole vehicle and the residual electric quantity, wherein the comprehensive average energy consumption is obtained according to the historical mileage and the historical energy consumption;
the display module is used for obtaining corrected meter display range according to gradient adjustment on the current meter display range in at least one charge state stage when the charge state is larger than a first limit value (20%), so as to reduce the difference value between the meter display range and the real range; the real endurance mileage is used as the meter display endurance mileage to be output and displayed when the state of charge is smaller than or equal to a first limit value;
the display module is further used for performing numerical adjustment according to a target adjustment amount when the state of charge is smaller than a second limit value and larger than a first limit value and the apparent range is changed by a preset gradient amount, wherein the target adjustment amount comprises a first adjustment amount and a second adjustment amount;
wherein when the state of charge is less than a second limit value and greater than or equal to a third limit value, the second adjustment amount is obtained according to the following method:
calculating according to the first adjustment amount to obtain a predicted first mileage when the state of charge is reduced from a first limit value to zero electricity;
calculating according to the comprehensive average energy consumption to obtain an estimated second mileage when the state of charge is reduced to zero from a first limit value;
Obtaining a first mileage difference value according to the estimated first mileage and the estimated second mileage;
determining a state of charge difference between the current state of charge and the first limit according to the current state of charge;
And calculating and obtaining a second adjustment quantity of the apparent endurance mileage when the state of charge parameter changes by a preset gradient quantity according to the first mileage difference value and the state of charge difference value.
7. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 5 when the computer program is executed by the processor.
8. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 5.
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