CN114734819A - Electric automobile driving range calculation method and system, storage medium and electric automobile - Google Patents
Electric automobile driving range calculation method and system, storage medium and electric automobile Download PDFInfo
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
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- 229910052744 lithium Inorganic materials 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
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- B60L3/12—Recording operating variables ; Monitoring of operating variables
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention provides a method and a system for calculating the driving range of an electric automobile, a storage medium and the electric automobile, wherein the method comprises the following steps: collecting the current environment temperature and the battery pack temperature; judging whether the electric core heating function of the vehicle is started or not; if so, calculating a first available electric quantity of the battery pack at a heating cut-off temperature; calculating a first average power consumption of the vehicle in a specified mileage before the current time; calculating the predicted power consumption required by heating according to the current environment temperature, the battery pack temperature and the heating cut-off temperature; calculating the driving range at the current moment according to the first available electric quantity, the predicted electric consumption and the first average electric consumption; if not, calculating a second available electric quantity of the battery pack at the temperature of the battery pack; calculating a second average power consumption of the vehicle in a specified mileage before the current time; and calculating the driving range at the current moment according to the second available electric quantity and the second average electric consumption. The invention solves the problem that the driving range jumps greatly when the electric core heating function of the existing vehicle is started.
Description
Technical Field
The invention relates to the technical field of electric vehicle control, in particular to a method and a system for calculating the driving range of an electric vehicle, a storage medium and the electric vehicle.
Background
In order to facilitate the driver to prejudge the remaining driving range so as to plan the travel in advance, almost all the pure electric vehicles are equipped with a driving range display function at present. The driving range calculation method commonly adopted by the current pure electric vehicle is as follows: the method comprises the steps of firstly calculating the remaining available electric quantity of the current battery pack according to the current environment temperature, then calculating the average electric consumption of a certain kilometer number or a certain time before the current time, and dividing the former into the latter to obtain the remaining driving range.
However, in order to obtain higher energy density, a ternary lithium battery or a lithium iron phosphate battery is generally used in the electric vehicle, and due to the physical characteristics of the materials of the two batteries, the discharge capacity is poor at a lower ambient temperature, so that even under the condition of the same SOC (state of charge), the available electric quantities corresponding to different temperatures of the battery pack are different, for example, under the condition that the SOC of the battery pack is 100%, the available electric quantity at normal temperature is 50kwh, and the available electric quantity at twenty-below zero degrees celsius is possibly 40kwh, so that the available electric quantity and the performance of the battery pack are greatly attenuated when the battery pack is used in a low-temperature environment.
In order to solve the problem, the electric vehicle adopting the two battery materials can be generally provided with a battery core heating function, and the working principle of the electric vehicle is that the battery pack or the charging pile is used for heating the battery pack to the required temperature through a PTC heating film or a water circulation heating mode and the like so as to recover the available electric quantity and the performance, so that the performance and the driving range of the vehicle in a cold environment are improved.
When the electric core heating is in the opening state, the temperature of the electric core of the battery pack when the electric core heating is started is lower, so that the available electric quantity of the battery pack is lower than the available electric quantity corresponding to the temperature after the electric core heating is finished. And since the battery pack needs to be heated to consume the electric energy in the battery pack, the average power consumption of the vehicle is higher than that when the heating function is not started. At this time, if the driving range is calculated according to the current driving range calculation method, the driving range is greatly reduced when the battery core heating function is started, the available electric quantity corresponding to the temperature rise of the battery pack is increased, and extra electric energy consumption is not needed after the heating is finished, so that the driving range is gradually increased, the driving range is greatly jumped, the judgment of the driving range by a driver is interfered, the display precision of the driving range has a large error, the displayed driving range of the vehicle has a large deviation from the actual driving range of the vehicle, the driver can be mistakenly planned for the travel, the electric quantity is exhausted during the driving of the vehicle or excessive electric quantity is remained when the travel is finished, and inconvenience is caused to the use of the vehicle.
Disclosure of Invention
Based on this, the invention aims to provide a method and a system for calculating the driving range of an electric automobile, a storage medium and the electric automobile, so as to fundamentally solve the problem that the driving range of the existing vehicle jumps greatly when the electric core heating function is started.
According to the embodiment of the invention, the method for calculating the driving range of the electric automobile comprises the following steps:
collecting the current environment temperature and the battery pack temperature;
judging whether the electric core heating function of the vehicle is started or not;
if the electric core heating function of the vehicle is judged to be started, calculating first available electric quantity when the battery pack reaches a heating cut-off temperature in the current state;
calculating a first average power consumption of the vehicle in a specified mileage before the current time;
calculating the predicted power consumption required by heating according to the current environment temperature, the battery pack temperature and the heating cut-off temperature;
calculating the driving range of the current moment according to the first available electric quantity, the estimated electric consumption and the first average electric consumption;
if the electric core heating function of the vehicle is judged not to be started, calculating second available electric quantity of the battery pack at the temperature of the battery pack;
calculating a second average power consumption of the vehicle in a specified mileage before the current time;
and calculating the driving range at the current moment according to the second available electric quantity and the second average electric consumption.
In addition, the method for calculating the driving range of the electric vehicle according to the above embodiment of the present invention may further have the following additional technical features:
further, the step of calculating a first average power consumption amount of the vehicle in a specified mileage before the current time includes:
acquiring the current real-time speed and the current running mileage of the vehicle, and the real-time discharge power and the real-time heating power of the battery pack;
calculating target time-consuming time required by the vehicle when the vehicle runs in a specified mileage according to the real-time vehicle speed and the running mileage, wherein the specified mileage is a calibratable mileage calibrated according to road conditions and display requirements;
calculating real-time operation power of other electrical appliances except for the battery pack during working according to the real-time discharge power and the real-time heating power;
calculating the average running power within the target time consumption according to the target time consumption and the real-time running power;
and calculating a first average power consumption of the vehicle when the vehicle runs in the specified mileage according to the specified mileage, the average running power and the target time consumption.
Further, the step of calculating the driving range at the current moment according to the first available power amount, the estimated power consumption amount and the first average power consumption amount comprises:
calculating estimated available electric quantity of the battery pack after heating is finished according to the first available electric quantity and the estimated electric consumption;
and calculating the driving range at the current moment according to the estimated available electric quantity after the heating is finished and the first average electric consumption.
Further, the step of calculating the first available electric quantity when the heating cutoff temperature of the battery pack is reached under the current state comprises the following steps:
acquiring the current SOC of the vehicle;
searching and determining a first available electric quantity at the heating cut-off temperature in a triaxial calibratable data table according to the current SOC and the heating cut-off temperature of the vehicle, wherein the heating cut-off temperature is a calibratable numerical value calibrated according to the physical characteristics of a vehicle battery and the driving environment;
the three axes in the three-axis calibratable data table are respectively the temperature, the SOC and the available electric quantity of the battery pack, and the three-axis calibratable data table calibrates according to the physical characteristics of the vehicle battery pack.
Further, the step of calculating a second average power consumption amount of the vehicle in the specified mileage before the current time includes:
collecting the current real-time speed and the current running mileage of the vehicle and the real-time discharge power of the battery pack;
calculating target time-consuming time required by the vehicle when the vehicle runs in a specified mileage according to the real-time vehicle speed and the running mileage, wherein the specified mileage is a calibratable mileage calibrated according to road conditions and display requirements;
calculating the average discharge power within the target time consumption according to the target time consumption and the real-time discharge power;
and calculating a second average power consumption of the vehicle when the vehicle runs in the specified mileage according to the specified mileage, the average discharge power and the target consumed time.
Further, the step of calculating a second available power of the battery pack at the temperature of the battery pack comprises:
acquiring the current SOC of the vehicle;
searching and determining a second available electric quantity at the temperature of the battery pack in a triaxial calibratable data table according to the current SOC of the vehicle and the temperature of the battery pack;
the three axes of the three-axis calibratable data table are respectively the temperature, the SOC and the available electric quantity of the battery pack, and the three-axis calibratable data table calibrates according to the physical characteristics of the battery pack of the vehicle.
Further, the step of calculating the expected power consumption required for heating according to the current ambient temperature, the temperature of the battery pack, and the heating cutoff temperature includes:
searching and determining the predicted power consumption required when the battery pack is heated to the heating cutoff temperature in a four-axis calibratable data table according to the current environment temperature, the battery pack temperature and the heating cutoff temperature;
the four-axis in the four-axis calibratable data table is used for calibrating the four-axis in accordance with the physical characteristics of the vehicle battery and the driving environment, wherein the four-axis in the four-axis calibratable data table is respectively heating cut-off temperature, ambient temperature, battery pack temperature and power consumption required by heating.
According to the embodiment of the invention, the system for calculating the driving range of the electric automobile comprises the following components:
the information acquisition module is used for acquiring the current environment temperature and the battery pack temperature;
the function judging module is used for judging whether the electric core heating function is started or not;
the first available electric quantity calculating module is used for calculating a first available electric quantity when the battery pack reaches a heating cut-off temperature in the current state when the function judging module judges that the electric core heating function of the vehicle is started;
the first average power consumption calculation module is used for calculating first average power consumption of the vehicle in a specified mileage before the current moment when the function judgment module judges that the battery cell heating function is started by the vehicle;
the predicted power consumption calculation module is used for calculating predicted power consumption required by heating according to the current environment temperature, the battery pack temperature and the heating cut-off temperature when the function judgment module judges that the electric core heating function of the vehicle is started;
the first driving range calculating module is used for calculating the driving range at the current moment according to the first available electric quantity, the predicted electric power consumption and the first average electric power consumption when the function judging module judges that the electric core heating function of the vehicle is started;
the second available electric quantity calculating module is used for calculating a second available electric quantity of the battery pack at the temperature of the battery pack when the function judging module judges that the electric core heating function of the vehicle is not started;
the second average power consumption calculation module is used for calculating second average power consumption of the vehicle within a specified mileage before the current moment when the function judgment module judges that the battery core heating function of the vehicle is not started;
and the second driving range calculating module is used for calculating the driving range at the current moment according to the second available electric quantity and the second average electric power consumption when the function judging module judges that the electric core heating function of the vehicle is not started.
A storage medium according to an embodiment of the present invention stores thereon a computer program that, when executed by a processor, implements the electric vehicle driving range calculating method as described above.
An electric vehicle according to an embodiment of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the electric vehicle driving range calculating method as described above.
Compared with the prior art: through predicting the whole power consumption of heating and calculating the average power consumption of other electrical apparatus except for the electric core heating assembly when opening electric core heating function, and calculate the available electric quantity of battery package when the heating is accomplished in advance, make can calculate the continuous mileage when the heating is accomplished in advance, thereby can revise current continuous mileage in advance, and avoided the vehicle to continue to travel the problem that the mileage jumps by a wide margin when opening electric core heating function, and directly calculate current accurate continuous mileage according to the available electric quantity that current battery package temperature corresponds the calculation when not opening electric core heating function, thereby make the continuous mileage show more accurately, vehicle convenience of use has been improved.
Drawings
FIG. 1 is a flowchart illustrating a method for calculating a driving range of an electric vehicle according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a driving range calculation system of an electric vehicle according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electric vehicle according to a third embodiment of the invention;
the following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example one
Referring to fig. 1, a driving range calculation method of an electric vehicle according to a first embodiment of the present invention is shown, and the method specifically includes steps S01-S09.
And step S01, acquiring the current environment temperature and the battery pack temperature.
In one embodiment of the present invention, various sensors are arranged on the electric vehicle to collect and detect status information of the vehicle and external environment information, for example, a plurality of sets of ambient temperature sensors are arranged on the vehicle to collect a current ambient temperature T1 at the current outside of the vehicle;a plurality of groups of battery core temperature sensors are arranged in a battery pack in the vehicle and are used for acquiring the temperature T2 of the battery pack; a BMS battery management system arranged in the battery pack is used for acquiring and calculating the current SOC of the vehicle; BMS discharging current and voltage sensors are arranged in the battery pack and used for collecting and calculating real-time discharging power P of the battery pack; the battery pack is internally provided with a battery pack heating current and voltage sensor for acquiring and calculating the real-time heating power P of the battery packW(ii) a A vehicle speed sensor is arranged on the vehicle and used for acquiring the current real-time vehicle speed and the current running mileage of the vehicle. The environment temperature sensors and the battery core temperature sensors can be arranged into a plurality of groups and are dispersedly arranged around the automobile body and around the battery pack, so that the current external environment temperature T1 and the battery pack temperature T2 in the battery pack can be calculated more uniformly and accurately, and the problem that the temperature detected by a single temperature sensor is inaccurate due to local thermal imbalance in the driving process of the automobile is avoided.
And step S02, judging whether the electric core heating function is started by the vehicle.
When the electric core heating function of the vehicle is judged to be started, executing the steps S03-S06; otherwise, step S07-step S09 are executed.
In an embodiment of the present invention, before the step of determining whether the vehicle starts the cell heating function, the method further includes: acquiring the current state of the vehicle, and judging whether the vehicle enters a waiting state or not;
and if the vehicle is judged to enter the waiting state, continuously judging whether the battery core heating function is started or not, and if the vehicle is not judged to enter the waiting state, ending the operation.
When the vehicle does not enter the waiting state, the vehicle is not started, so that the calculation and display of the driving range are not needed, and the subsequent steps are not executed after the calculation and the display are directly finished; when the vehicle is in a standby state, no matter whether the vehicle is in running motion or not, the driving range needs to be calculated and displayed, so that the driver can clearly know the mileage of the vehicle which can continue to run in the current state.
Further, the vehicle may have a certain setting on whether to start the cell heating function, when the vehicle enters a state to be driven, the vehicle acquires the temperature of the battery pack and the current SOC of the battery pack according to the sensors, and determines whether to automatically start the cell heating function according to the corresponding combination of the acquired temperature of the battery pack and the current SOC, for example, when the current SOC of the battery pack is higher than a preset SOC value and the temperature of the battery pack is lower than a preset temperature (for example, a temperature below zero a), the vehicle may automatically start the cell heating function, so as to improve the performance and the driving range of the vehicle in a cold environment.
In step S03, a first available electric quantity when the battery pack reaches the heating cutoff temperature in the current state is calculated.
In an embodiment of the present invention, when it is determined that the electric core heating function of the vehicle is turned on, a first available electric quantity of the battery pack when the battery pack reaches a heating cutoff temperature in a current state is calculated, which may be specifically implemented by the following steps:
acquiring the current SOC of the vehicle;
searching and determining a first available electric quantity under the heating cutoff temperature in a triaxial calibratable data table according to the current SOC and the heating cutoff temperature of the vehicle, wherein the heating cutoff temperature is a calibratable numerical value calibrated according to the physical characteristics of the vehicle battery and the driving environment;
the three axes in the triaxial calibratable data table are respectively the temperature, the SOC and the available electric quantity of the battery pack, and the triaxial calibratable data table calibrates according to the physical characteristics of the vehicle battery pack.
Specifically, as described above, the BMS may obtain and calculate the current SOC of the vehicle, where it is noted that, at this time, there is a mapping table of one-to-one correspondence relationship among the battery pack temperature, the SOC, and the available electric quantity, that is, the triaxial calibratable data table thereof, and at this time, according to any two values among the battery pack temperature, the SOC, and the available electric quantity, another value may be obtained by looking up a table in the triaxial calibratable data table, for example, when the SOC is a fixed value, the battery pack temperatures are different, and the corresponding available electric quantities are also different, and at this time, the corresponding available electric quantity may be found according to the specific SOC and the battery pack temperature.
To be pointed outThe three-axis calibratable data table is calibrated according to the physical characteristics of the vehicle battery pack, that is, the available electric quantities corresponding to the battery packs with different material components are not necessarily the same even under the condition of the same SOC and the same temperature of the battery packs, so that the vehicle records the model of the battery pack and the three-axis calibratable data table corresponding to the model. Further, a heating cut-off temperature TmCalibrating according to the physical characteristics of the vehicle battery and the driving environment, namely the battery packs with different material components and the corresponding heating cut-off temperature T after the heating process is finished under different driving environmentsmDifferent from each other, for example, even if the battery A in different vehicles is in different low-temperature environments, the heating cut-off temperature T after the heating is finished in the heating processmThe same, and even under the same low temperature environment, the battery A and the battery B in different vehicles have the corresponding heating cut-off temperature T after the completion of heating in the heating processmAnd are also different. Therefore, the heating cut-off temperature T corresponding to the type of the battery pack is recorded in the vehiclemSo that the battery pack can be heated to the heating cut-off temperature TmHeating was then stopped.
At this time, the first available electric quantity W is required to be obtained1In the time, the table can be looked up directly according to the current SOC and the heating cut-off temperature which are obtained currently to determine the first available electric quantity W under the heating cut-off temperature1The available electric quantity of the battery pack when heating is finished can be calculated in advance according to the current SOC and the heating cutoff temperature, the subsequent driving range is calculated by taking the available electric quantity corresponding to the battery pack when the battery pack finally reaches the heating cutoff temperature in the current state as a basis, and the problem that the calculated driving range jumps greatly due to the fact that the available electric quantity is different when the temperature of the battery pack of the existing vehicle is at different values after the battery cell heating function of the existing vehicle is started is avoided.
Step S04 is to calculate a first average power consumption amount of the vehicle in the specified mileage before the current time.
In an embodiment of the present invention, the calculating the first average power consumption amount of the vehicle in the specified mileage before the current time may be implemented by:
acquiring the current real-time speed and the current running mileage of the vehicle, and the real-time discharge power and the real-time heating power of the battery pack;
calculating target time-consuming time required by the vehicle when the vehicle runs for a specified mileage according to the real-time vehicle speed and the running mileage, wherein the specified mileage is a calibratable mileage calibrated according to road conditions and display requirements;
calculating real-time operation power of other electrical appliances except for the battery pack during operation according to the real-time discharge power and the real-time heating power;
calculating the average running power within the target time consumption according to the target time consumption and the real-time running power;
and calculating a first average power consumption of the vehicle when the vehicle runs for the specified mileage according to the specified mileage, the average running power and the target time consumption.
Specifically, as mentioned above, the ambient temperature sensor collects the current ambient temperature T1, the core temperature sensor in the battery pack collects the temperature T2 of the battery pack, the BMS battery management system calculates the current SOC of the vehicle, the BMS discharge current and voltage sensor collects and calculates the real-time discharge power P, and the battery pack heating current and voltage sensor collects and calculates the real-time heating power P of the battery packWThe vehicle speed sensor collects the current real-time vehicle speed and the current running mileage, the target time t of the specified mileage A of the vehicle running can be calculated through data processing, the specified mileage A of the vehicle running is a calibratable mileage, the mileage is displayed stably and is not easy to jump when the number is increased, but the response speed is slowed, and therefore the parameter is calibrated according to the current road condition and the display requirement.
Further, calculating the real-time operation power P of other electric appliances except the real-time heating power of the battery pack according to the real-time discharge power and the real-time heating powerD：
PD＝P-PW；
Further, according to the target time t and the calculated real-time operation power PDCalculating the average running power P in the target elapsed time t1：
Further, according to the specified mileage A and the average running power P1And calculating a first average power consumption Q of the vehicle in the specified mileage by the target time t1：
It is understood that, in other embodiments of the present invention, it may also calculate the first average power consumption amount of the specified elapsed time before the current time, for example, the data processing calculates the mileage of the vehicle during the specified elapsed time, calculates the average operating power during the specified elapsed time according to the specified elapsed time and the calculated real-time operating power, and calculates the first average power consumption amount of the vehicle during the specified elapsed time according to the mileage, the average operating power, and the specified elapsed time. At the moment, the average power consumption of other electric appliances except the battery core heating assembly in the running process of the vehicle is estimated when the battery core heating function is started, so that the influence of energy consumption generated by heating the battery pack is eliminated.
In step S05, the estimated power consumption required for heating is calculated from the current ambient temperature, the battery pack temperature, and the heating cutoff temperature.
In an embodiment of the present invention, the calculating of the predicted power consumption required for heating according to the current ambient temperature, the temperature of the battery pack, and the heating cutoff temperature may be implemented by:
searching and determining the predicted power consumption required when the battery pack is heated to the heating cutoff temperature in the four-axis calibratable data table according to the current environment temperature, the battery pack temperature and the heating cutoff temperature;
four-axis in the four-axis calibratable data table is heating cut-off temperature, ambient temperature, battery package temperature, and the required power consumption of heating respectively, and the four-axis can calibrate data table and carry out the calibration according to vehicle battery physical characteristic and driving environment.
Specifically, a mapping table with one-to-one correspondence relationship among the current environment temperature, the battery pack temperature, the heating cutoff temperature and the electric quantity required for heating is provided, that is, a four-axis calibratable data table is provided, and at this time, according to any three values of the current environment temperature, the battery pack temperature, the heating cutoff temperature and the electric quantity required for heating, another value can be obtained by looking up the table in the four-axis calibratable data table, for example, when the SOC is a fixed value, the battery pack temperatures are different, and the corresponding available electric quantities are different. It should be noted that the four-axis calibratable data table is calibrated according to the physical characteristics of the vehicle battery pack, and at this time, the vehicle records the model of the battery pack and the four-axis calibratable data table corresponding to the model. Further, according to the current environment temperature, the temperature of the battery pack and the heating cut-off temperature, the expected power consumption W needed when the battery pack is heated to the heating cut-off temperature is searched and determined in the four-axis calibratable data tableW. It should be noted that, since the battery pack also generates heat during the discharging process, when the vehicle is normally used, the temperature of the battery pack is heated to the heating cut-off temperature TmHeating was then stopped.
In step S06, the driving range at the current time is calculated according to the first available power amount, the estimated power consumption amount, and the first average power consumption amount.
In an embodiment of the invention, the calculating of the driving range at the current time according to the first available power, the predicted power consumption and the first average power consumption may be implemented by:
calculating the estimated available electric quantity of the battery pack after heating is finished according to the first available electric quantity and the estimated electric consumption;
and calculating the driving range at the current moment according to the estimated available electric quantity and the first average electric consumption.
Specifically, the first available electric quantity W is obtained according to the above1And predicted power consumption WWCalculating the estimated available electric quantity W of the battery pack after heating3：
W3＝W1-WW；
Further, according to the estimated available electric quantity W3And a first average power consumption Q1Calculating the driving range S at the current moment1：
Therefore, the driving range when heating is finished can be calculated in advance by estimating the whole heating power consumption and calculating the average power consumption of other electric appliances except the electric core heating assembly and calculating the available power consumption of the battery pack corresponding to the heating cut-off temperature in advance, so that the driving range under the influence of the temperature of the battery pack on the available power and the heating factor of the battery pack at the current moment can be obtained.
Further, the calculated driving range S1Displayed on the dashboard.
Accordingly, in other embodiments of the present invention, when the first average power consumption during the specified time period of driving is calculated, the driving range can be obtained by calculating the driving time according to the above formula.
Step S07, calculating a second available electric quantity of the battery pack at the temperature of the battery pack;
in an embodiment of the present invention, when it is determined that the electric core heating function is not turned on, a second available electric quantity of the battery pack at the temperature of the battery pack is calculated, which may be specifically implemented by the following steps:
acquiring the current SOC of the vehicle;
searching and determining a second available electric quantity at the temperature of the battery pack in a triaxial calibratable data table according to the current SOC of the vehicle and the temperature of the battery pack;
the three axes in the three-axis calibratable data table are respectively the temperature, the SOC and the available electric quantity of the battery pack, and the three-axis calibratable data table calibrates according to the physical characteristics of the vehicle battery pack.
In particular, reference is made to the preceding description, which is in this case directly based on the vehicleThe front SOC and the battery pack temperature are searched in a triaxial calibratable data table to determine a second available electric quantity W at the battery pack temperature2。
Step S08 is to calculate a second average power consumption amount of the vehicle in the specified mileage before the current time.
In an embodiment of the present invention, the calculating the second average power consumption of the vehicle in the specified mileage before the current time may be implemented by:
collecting the current real-time speed and the current running mileage of the vehicle and the real-time discharge power of the battery pack;
calculating target time-consuming time required by the vehicle when the vehicle runs for a specified mileage according to the real-time vehicle speed and the running mileage, wherein the specified mileage is a calibratable mileage calibrated according to road conditions and display requirements;
calculating the average discharge power within the target time consumption according to the target time consumption and the real-time discharge power;
and calculating a second average power consumption of the vehicle when the vehicle runs for the specified mileage according to the specified mileage, the average discharge power and the target time consumption.
Specifically, with reference to the above, the target elapsed time t of the specified mileage a of the vehicle can be calculated through data processing, and the average discharge power P within the target elapsed time t can be calculated according to the real-time discharge power P2：
Further, according to the specified mileage A and the average discharge power P2And calculating a second average power consumption Q of the vehicle in the specified mileage by the target time t2：
In step S09, the driving range at the current time is calculated based on the second available power amount and the second average power consumption amount.
Specifically, as described above with reference to the second available electric quantity W2And a second average power consumption Q2Calculating the driving range S at the current moment2：
Further, the calculated driving range S2Displayed on the dashboard.
And further, jumping to a starting state, and repeatedly executing the steps to continuously calculate the current driving range of the vehicle.
In summary, in the method for calculating the driving range of the electric vehicle according to the embodiments of the present invention, the driving range when heating is completed can be calculated in advance by estimating the electric quantity consumed in the whole heating process and calculating the average electric quantity consumed by the other electric appliances except the electric core heating component when the electric core heating function is started, and calculating the available electric quantity of the battery pack when heating is completed in advance, so that the current driving range can be corrected in advance, thereby avoiding a problem that the driving range of the vehicle jumps greatly when the electric core heating function is started, and when the electric core heating function is not started, the current accurate driving range can be calculated directly according to the available electric quantity calculated corresponding to the current battery pack temperature, so that the driving range is displayed more accurately, and the convenience of the vehicle is improved.
Example two
In another aspect of the present invention, referring to fig. 2, there is provided an electric vehicle driving range calculating system according to a second embodiment of the present invention, wherein the electric vehicle driving range calculating system includes:
the information acquisition module 11 is used for acquiring the current environment temperature and the battery pack temperature;
the function judging module 12 is configured to judge whether the battery cell heating function is turned on by the vehicle;
the first available electric quantity calculating module 13 is configured to calculate a first available electric quantity when the battery pack reaches a heating cutoff temperature in a current state when the function judging module 12 judges that the electric core heating function of the vehicle is started;
the first average power consumption calculation module 14 is configured to calculate a first average power consumption of the vehicle within a specified mileage before the current time when the function determination module 12 determines that the battery core heating function of the vehicle is started;
the estimated power consumption calculation module 15 is configured to calculate estimated power consumption required for heating according to the current ambient temperature, the battery pack temperature, and the heating cutoff temperature when the function judgment module 12 judges that the electric core heating function of the vehicle is started;
the first driving range calculating module 16 is configured to calculate a driving range at the current time according to the first available electric quantity, the predicted electric power consumption, and the first average electric power consumption when the function determining module 12 determines that the electric core heating function of the vehicle is started;
the second available electric quantity calculating module 17 is configured to calculate a second available electric quantity of the battery pack at the temperature of the battery pack when the function determining module 12 determines that the electric core heating function of the vehicle is not started;
the second average power consumption calculation module 18 is configured to calculate a second average power consumption of the vehicle within a specified mileage before the current time when the function determination module 12 determines that the battery cell heating function is not started;
and the second driving range calculating module 19 is configured to calculate a driving range at the current moment according to the second available electric quantity and the second average electric power consumption when the function determining module 12 determines that the electric core heating function is not started by the vehicle.
Further, in an embodiment of the present invention, the first average power consumption amount calculation module 14 includes:
the first information acquisition unit is used for acquiring the current real-time speed and the current running mileage of the vehicle and the real-time discharge power and the real-time heating power of the battery pack;
the first time-consuming time calculation unit is used for calculating target time-consuming time required by the vehicle when the vehicle runs for specified mileage according to the real-time vehicle speed and the running mileage, wherein the specified mileage is a calibratable mileage calibrated according to road conditions and display requirements;
the real-time operation power calculation unit is used for calculating the real-time operation power of other electric appliances except the battery pack during operation according to the real-time discharge power and the real-time heating power;
the average running power calculation unit is used for calculating the average running power within the target consumed time according to the target consumed time and the real-time running power;
and the first average power consumption calculating unit is used for calculating the first average power consumption of the vehicle when the vehicle runs in the specified mileage according to the specified mileage, the average running power and the target time consumption.
Further, in one embodiment of the present invention, the first driving range calculation module 16 includes:
the estimated available electric quantity calculating unit is used for calculating estimated available electric quantity of the battery pack after heating is finished according to the first available electric quantity and the estimated electric consumption;
and the first driving range calculating unit is used for calculating the driving range at the current moment according to the estimated available electric quantity and the first average electric consumption.
Further, in one embodiment of the present invention, the first available electricity amount calculation module 13 includes:
a first current SOC acquisition unit for acquiring a current SOC of the vehicle;
the first available electric quantity determining unit is used for searching and determining a first available electric quantity at the heating cutoff temperature in a three-axis calibratable data table according to the current SOC and the heating cutoff temperature of the vehicle, wherein the heating cutoff temperature is a calibratable numerical value calibrated according to the physical characteristics and the driving environment of the vehicle battery;
the three axes in the three-axis calibratable data table are respectively the temperature, the SOC and the available electric quantity of the battery pack, and the three-axis calibratable data table calibrates according to the physical characteristics of the vehicle battery pack.
Further, in an embodiment of the present invention, the second average power consumption amount calculation module 18 includes:
the second information acquisition unit is used for acquiring the current real-time speed and the current running mileage of the vehicle and the real-time discharge power of the battery pack;
the second time-consuming time calculation unit is used for calculating target time-consuming time required by the vehicle when the vehicle runs in the specified mileage according to the real-time vehicle speed and the running mileage, wherein the specified mileage is a calibratable mileage calibrated according to road conditions and display requirements;
the average discharge power calculation unit is used for calculating the average discharge power within the target time consumption according to the target time consumption and the real-time discharge power;
and the second average power consumption calculation unit is used for calculating the second average power consumption of the vehicle when the vehicle runs the specified mileage according to the specified mileage, the average discharge power and the target consumed time.
Further, in one embodiment of the present invention, the second available electric quantity calculation module 17 includes:
a second current SOC acquiring unit configured to acquire a current SOC of the vehicle;
the second available electric quantity determining unit is used for searching and determining a second available electric quantity at the temperature of the battery pack in the triaxial calibratable data table according to the current SOC of the vehicle and the temperature of the battery pack;
the three axes in the three-axis calibratable data table are respectively the temperature, the SOC and the available electric quantity of the battery pack, and the three-axis calibratable data table calibrates according to the physical characteristics of the vehicle battery pack.
Further, in one embodiment of the present invention, the expected power consumption amount calculation module 15 includes:
the estimated power consumption calculation unit is used for searching and determining the estimated power consumption required when the battery pack is heated to the heating cutoff temperature in the four-axis calibratable data table according to the current environment temperature, the battery pack temperature and the heating cutoff temperature;
four-axis among the four-axis calibratable data table is heating cut-off temperature, ambient temperature, battery package temperature and the required power consumption of heating respectively, the four-axis calibratable data table is based on vehicle battery physical characteristic and the environment of traveling and is markd.
The functions or operation steps of the modules and units when executed are substantially the same as those of the method embodiments, and are not described herein again.
In summary, in the driving range calculation system of the electric vehicle in the above embodiment of the present invention, the driving range when heating is completed can be calculated in advance by predicting the electric quantity consumed in the whole heating process and calculating the average electric power consumption of the other electric appliances except the electric core heating component when the electric core heating function is turned on, and calculating the available electric quantity of the battery pack when heating is completed in advance, so that the current driving range can be corrected in advance, thereby avoiding a problem that the driving range of the vehicle jumps greatly when the electric core heating function is turned on, and when the electric core heating function is not turned on, the current accurate driving range can be calculated directly according to the available electric quantity calculated corresponding to the current battery pack temperature, so that the driving range can be displayed more accurately, and the convenience in vehicle use can be improved.
EXAMPLE III
Referring to fig. 3, an electric vehicle according to a third embodiment of the present invention is further provided, which includes a memory 20, a processor 10, and a computer program 30 stored in the memory 20 and executable on the processor 10, wherein the processor 10 implements the method for calculating the driving range of the electric vehicle when executing the computer program 30.
The electric vehicle may specifically be a pure electric vehicle carrying a ternary lithium battery or a lithium iron phosphate battery, and the processor 10 may be a Central Processing Unit (CPU), a controller, a microcontroller, a microprocessor or other data Processing chip in some embodiments, and is configured to run program codes or process data stored in the memory 20, for example, execute an access restriction program.
The memory 20 includes at least one type of readable storage medium, which includes a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, and the like. The memory 20 may be an internal storage unit of the electric vehicle, such as a hard disk of the electric vehicle, in some embodiments. The memory 20 may be an external storage device of an electric vehicle in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the electric vehicle. Further, the memory 20 may also include both an internal storage unit and an external storage device of the electric vehicle. The memory 20 may be used not only to store application software installed in the electric vehicle and various types of data, but also to temporarily store data that has been output or will be output.
It should be noted that the configuration shown in fig. 3 is not intended to be limiting of electric vehicles, and in other embodiments, the electric vehicles may include fewer or more components than shown, or some components may be combined, or a different arrangement of components.
In summary, in the electric vehicle according to the above embodiment of the present invention, the total heating power consumption is estimated when the cell heating function is turned on, the average power consumption of the other electric devices except the cell heating assembly is calculated, and the available power of the battery pack is calculated in advance when the heating is completed, so that the driving range when the heating is completed can be calculated in advance, and thus the current driving range can be corrected in advance, thereby avoiding a problem that the driving range of the vehicle jumps greatly when the cell heating function is turned on, and the current accurate driving range can be calculated directly according to the available power calculated corresponding to the current battery pack temperature when the cell heating function is not turned on, so that the driving range display is more accurate, and the convenience in use of the vehicle is improved.
Embodiments of the present invention further provide a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for calculating the driving range of an electric vehicle as described in the foregoing method embodiments.
Those of skill in the art will understand that the logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be viewed as implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following technologies, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A driving range calculation method of an electric vehicle is characterized by comprising the following steps:
collecting the current environment temperature and the battery pack temperature;
judging whether the electric core heating function of the vehicle is started or not;
if the electric core heating function of the vehicle is judged to be started, calculating first available electric quantity when the battery pack reaches a heating cut-off temperature under the current state;
calculating a first average power consumption of the vehicle in a specified mileage before the current time;
calculating the predicted power consumption required by heating according to the current environment temperature, the battery pack temperature and the heating cut-off temperature;
calculating the driving range of the current moment according to the first available electric quantity, the estimated electric consumption and the first average electric consumption;
if the electric core heating function of the vehicle is judged not to be started, calculating second available electric quantity of the battery pack at the temperature of the battery pack;
calculating a second average power consumption of the vehicle in a specified mileage before the current time;
and calculating the driving range at the current moment according to the second available electric quantity and the second average electric consumption.
2. The electric vehicle range calculation method of claim 1, wherein the step of calculating the first average power consumption of the vehicle within a specified mileage before the current time comprises:
collecting the current real-time speed and the current running mileage of the vehicle, and the real-time discharging power and the real-time heating power of the battery pack;
calculating target time-consuming time required by the vehicle when the vehicle runs in a specified mileage according to the real-time vehicle speed and the running mileage, wherein the specified mileage is a calibratable mileage calibrated according to road conditions and display requirements;
calculating real-time operation power of other electrical appliances except for the battery pack during operation according to the real-time discharge power and the real-time heating power;
calculating the average running power within the target time consumption according to the target time consumption and the real-time running power;
and calculating a first average power consumption of the vehicle when the vehicle runs in the specified mileage according to the specified mileage, the average running power and the target time consumption.
3. The electric vehicle driving range calculation method according to claim 1, wherein the step of calculating the driving range at the current time based on the first available power amount, the predicted power consumption amount, and the first average power consumption amount includes:
calculating estimated available electric quantity of the battery pack after heating is finished according to the first available electric quantity and the estimated electric consumption;
and calculating the driving range at the current moment according to the estimated available electric quantity after the heating is finished and the first average electric consumption.
4. The electric vehicle driving range calculation method according to claim 1, wherein the step of calculating the first available amount of electricity when the battery pack reaches the heating cutoff temperature in the current state includes:
acquiring the current SOC of the vehicle;
searching and determining a first available electric quantity at the heating cutoff temperature in a triaxial calibratable data table according to the current SOC and the heating cutoff temperature of the vehicle, wherein the heating cutoff temperature is a calibratable numerical value calibrated according to the physical characteristics of the vehicle battery and the driving environment;
the three axes in the three-axis calibratable data table are respectively the temperature, the SOC and the available electric quantity of the battery pack, and the three-axis calibratable data table calibrates according to the physical characteristics of the vehicle battery pack.
5. The electric vehicle range calculation method of claim 1, wherein the step of calculating a second average power consumption of the vehicle within a specified mileage before the current time comprises:
collecting the current real-time speed and the current running mileage of the vehicle and the real-time discharge power of the battery pack;
calculating target time consumption required by the vehicle when the vehicle runs for a specified mileage according to the real-time vehicle speed and the running mileage, wherein the specified mileage is a calibratable mileage calibrated according to road conditions and display requirements;
calculating the average discharge power within the target time consumption according to the target time consumption and the real-time discharge power;
and calculating a second average power consumption of the vehicle when the vehicle runs in the specified mileage according to the specified mileage, the average discharge power and the target time consumption.
6. The electric vehicle driving range calculation method according to claim 1, wherein the step of calculating the second available electric quantity of the battery pack at the temperature of the battery pack comprises:
acquiring the current SOC of the vehicle;
searching and determining a second available electric quantity at the temperature of the battery pack in a triaxial calibratable data table according to the current SOC of the vehicle and the temperature of the battery pack;
the three axes in the three-axis calibratable data table are respectively the temperature, the SOC and the available electric quantity of the battery pack, and the three-axis calibratable data table calibrates according to the physical characteristics of the vehicle battery pack.
7. The electric vehicle driving range calculation method according to claim 1, wherein the step of calculating the predicted amount of power consumption required for heating from the current ambient temperature, the battery pack temperature, and the heating cutoff temperature includes:
searching and determining the predicted power consumption required when the battery pack is heated to the heating cutoff temperature in a four-axis calibratable data table according to the current environment temperature, the battery pack temperature and the heating cutoff temperature;
four-axis among the four-axis calibratable data table is heating cut-off temperature, ambient temperature, battery package temperature and the required power consumption of heating respectively, the four-axis calibratable data table is based on vehicle battery physical characteristic and the environment of traveling and is markd.
8. An electric vehicle driving range calculation system, characterized in that the system comprises:
the information acquisition module is used for acquiring the current environment temperature and the battery pack temperature;
the function judging module is used for judging whether the electric core heating function of the vehicle is started or not;
the first available electric quantity calculating module is used for calculating a first available electric quantity when the battery pack reaches a heating cut-off temperature in the current state when the function judging module judges that the electric core heating function of the vehicle is started;
the first average power consumption calculation module is used for calculating first average power consumption of the vehicle in a specified mileage before the current moment when the function judgment module judges that the battery cell heating function is started by the vehicle;
the predicted power consumption calculation module is used for calculating predicted power consumption required by heating according to the current environment temperature, the battery pack temperature and the heating cut-off temperature when the function judgment module judges that the electric core heating function of the vehicle is started;
the first driving range calculating module is used for calculating the driving range at the current moment according to the first available electric quantity, the predicted electric power consumption and the first average electric power consumption when the function judging module judges that the electric core heating function of the vehicle is started;
the second available electric quantity calculating module is used for calculating a second available electric quantity of the battery pack at the temperature of the battery pack when the function judging module judges that the electric core heating function of the vehicle is not started;
the second average power consumption calculation module is used for calculating second average power consumption of the vehicle within a specified mileage before the current moment when the function judgment module judges that the battery core heating function of the vehicle is not started;
and the second driving range calculating module is used for calculating the driving range at the current moment according to the second available electric quantity and the second average electric power consumption when the function judging module judges that the electric core heating function of the vehicle is not started.
9. A storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the electric vehicle driving range calculation method according to any one of claims 1 to 7.
10. An electric vehicle comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the electric vehicle range calculation method according to any one of claims 1 to 7 when executing the program.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115172943A (en) * | 2022-07-22 | 2022-10-11 | 智己汽车科技有限公司 | Battery preheating method and system |
| CN115395618A (en) * | 2022-09-21 | 2022-11-25 | 东集技术股份有限公司 | Lithium battery temperature control method, system, device and readable storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549900A (en) * | 2018-03-30 | 2019-12-10 | 比亚迪股份有限公司 | Parameter updating method and device for electric automobile and power battery after standing |
| US20200166356A1 (en) * | 2018-11-27 | 2020-05-28 | Here Global B.V. | Method, apparatus, and computer program product for predicting range of an electric vehicle |
| CN111579997A (en) * | 2020-04-30 | 2020-08-25 | 浙江零跑科技有限公司 | Method for estimating freezing energy of power battery of electric vehicle |
| CN113125967A (en) * | 2021-04-07 | 2021-07-16 | 力高(山东)新能源技术有限公司 | Lithium battery SOE calculation method based on temperature rise prediction |
| WO2021219013A1 (en) * | 2020-04-30 | 2021-11-04 | 长城汽车股份有限公司 | Method and apparatus for determining cruising range of vehicle, and device, computer program and medium |
| CN113844270A (en) * | 2021-09-30 | 2021-12-28 | 华人运通(江苏)技术有限公司 | Display mileage updating method and device of electric automobile and vehicle |
-
2022
- 2022-03-07 CN CN202210225029.4A patent/CN114734819A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549900A (en) * | 2018-03-30 | 2019-12-10 | 比亚迪股份有限公司 | Parameter updating method and device for electric automobile and power battery after standing |
| US20200166356A1 (en) * | 2018-11-27 | 2020-05-28 | Here Global B.V. | Method, apparatus, and computer program product for predicting range of an electric vehicle |
| CN111579997A (en) * | 2020-04-30 | 2020-08-25 | 浙江零跑科技有限公司 | Method for estimating freezing energy of power battery of electric vehicle |
| WO2021219013A1 (en) * | 2020-04-30 | 2021-11-04 | 长城汽车股份有限公司 | Method and apparatus for determining cruising range of vehicle, and device, computer program and medium |
| CN113125967A (en) * | 2021-04-07 | 2021-07-16 | 力高(山东)新能源技术有限公司 | Lithium battery SOE calculation method based on temperature rise prediction |
| CN113844270A (en) * | 2021-09-30 | 2021-12-28 | 华人运通(江苏)技术有限公司 | Display mileage updating method and device of electric automobile and vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115172943A (en) * | 2022-07-22 | 2022-10-11 | 智己汽车科技有限公司 | Battery preheating method and system |
| CN115395618A (en) * | 2022-09-21 | 2022-11-25 | 东集技术股份有限公司 | Lithium battery temperature control method, system, device and readable storage medium |
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