An evaluation method, device, equipment and medium for comprehensive energy consumption and endurance of a pure electric vehicle

Abstract

The present application relates to a kind of pure electric vehicle comprehensive energy consumption and the evaluation method, device, equipment and medium of endurance, wherein, method includes: the vehicle driving information of user under different travel conditions is counted, and the road profile information of different travel conditions is formed;Determine the different temperature range of energy consumption test, and define vehicle test boundary;Based on the road profile information of different travel conditions, determine energy consumption test condition and battery discharge condition;In vehicle test boundary, test the vehicle basic energy consumption data in different temperature range and different energy consumption test condition;Test the actual power level of different power use window of vehicle in different temperature range and battery discharge condition;Calculate the energy consumption of vehicle actual use scene and the endurance mileage in different temperature use scene.The present application can reasonably assess the energy consumption and endurance level of pure electric vehicle.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle application technology, and in particular to a method, apparatus, equipment and medium for evaluating the comprehensive energy consumption and range of pure electric vehicles. Background Technology

[0002] In recent years, the development of new energy vehicles has been booming. A reasonable assessment of the energy consumption and range of pure electric vehicles is crucial, as it not only provides consumers with important performance data for purchasing vehicles but also lays the foundation for improving energy efficiency across the entire automotive industry.

[0003] Currently, the energy consumption and range declaration data for pure electric passenger vehicles in China are tested according to the national standard GB / T 18386.1-2021. The test conditions refer to GB / T 38146.1—2019 China Automotive Driving Cycle Part 1: Light Vehicles, abbreviated as CLTC cycle. The test temperature is set at 23℃. Energy consumption calculations place more than 90% of the proportion in the third and fourth thermal cycles at the end of the test. The vehicle battery discharge is stopped when the vehicle can no longer keep up with 100km / h.

[0004] The aforementioned testing methods provide a unified testing standard for the energy consumption and range declaration of pure electric vehicles in China. However, their test conditions, test temperatures, and vehicle battery usage boundaries are relatively singular and cannot represent the usage levels of domestic users across a wide range of temperature ranges, different operating conditions, and travel habits. In actual vehicle driving, extreme temperatures deviating from the 23°C limit will lead to increased air conditioning power consumption; in winter low temperatures or even extremely low temperatures in Northeast China, battery capacity will significantly decrease; the cold-state energy consumption data for daily short-distance travel also differs significantly from the hot-state energy consumption level under standard testing, and this difference is more pronounced in winter; different travel scenarios also lead to certain differences between actual driving conditions and standard operating conditions; and users' actual battery usage window is often below 80% or even 70%. All of these factors can cause a significant discrepancy between the actual energy consumption and driving range of users and the nominal data, leading to complaints and anxiety among users during actual driving. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a method, device and medium for evaluating the comprehensive energy consumption and range of pure electric vehicles, which can reasonably assess the energy consumption and range of pure electric vehicles.

[0006] The technical solution adopted by this invention to solve its technical problem is: to provide a method for evaluating the comprehensive energy consumption and range of a pure electric vehicle, comprising the following steps:

[0007] Collect data on users' vehicle driving information under different travel conditions and generate road spectrum information for different travel conditions;

[0008] Determine the different temperature ranges for energy consumption testing and define the vehicle test boundaries;

[0009] The energy consumption test conditions and battery discharge conditions are determined based on road spectrum information under different travel conditions.

[0010] Within the vehicle test boundary, test the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions.

[0011] The actual battery level of the vehicle under different battery usage windows in different temperature ranges and battery discharge conditions was tested.

[0012] Based on the actual usage scenario, input the travel temperature range percentage, travel operating condition percentage, travel power usage range, and travel time, and combine the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions to calculate the vehicle's actual usage scenario energy consumption; the vehicle's actual usage scenario energy consumption includes the comprehensive energy consumption level of a single temperature zone under all operating conditions and the comprehensive energy consumption level of the entire temperature range under all operating conditions throughout the year.

[0013] The driving range under different temperature ranges is calculated based on the actual battery level of the vehicle in different battery usage windows under different temperature ranges and battery discharge conditions, as well as the comprehensive energy consumption level of the vehicle under all operating conditions in a single temperature zone.

[0014] The road spectrum information for different travel conditions includes urban road spectrum curves, suburban road spectrum curves, and highway road spectrum curves. The horizontal axis of the road spectrum curve represents travel time, the vertical axis represents vehicle speed, and the data interval is 1 second.

[0015] The different temperature ranges include spring and autumn regions, summer regions, ordinary winter regions, cold winter regions, and extreme cold winter regions. Specifically, the temperature range of the spring and autumn regions is 10℃ to 30℃; the temperature range of the summer regions is above 30℃; the temperature range of the ordinary winter regions is 0℃ to 10℃; the temperature range of the cold winter regions is -10℃ to 0℃; and the temperature range of the extreme cold winter regions is below -10℃.

[0016] The vehicle test boundaries include temperature test boundaries, battery level test boundaries, and air conditioning usage conditions. Specifically, the temperature test boundaries are: 20℃ in spring and autumn, 35℃ in summer, 5℃ in normal winter, -7℃ in cold winter, and -20℃ in extremely cold winter. The battery level test boundary is a state of charge of 50% to 60%. The air conditioning usage conditions are: the air conditioning is set to Auto 22℃.

[0017] The energy consumption test conditions include urban cold-running energy consumption test conditions, urban hot-running energy consumption test conditions, suburban cold-running energy consumption test conditions, suburban hot-running energy consumption test conditions, and highway energy consumption test conditions; where cold-running means a travel time of no more than 30 minutes, and hot-running means a travel time of more than 30 minutes.

[0018] The calculation method for the comprehensive energy consumption level under all operating conditions in the single temperature zone is as follows:

[0019] ;

[0020] in, This represents the comprehensive energy consumption level across all operating conditions in a single temperature zone. For single-temperature zone urban energy consumption, when the input is the single urban trip time No more than 30 minutes When the time for a single trip in the city When it exceeds 30 minutes, , For urban refrigeration unit energy consumption, and The figures represent urban heat engine energy consumption under transition and heat engine conditions, respectively. , Indicates rounding up; For single-temperature suburban energy consumption, when the single trip time in the suburbs... No more than 30 minutes When the single trip time in the suburbs When it exceeds 30 minutes, ; For suburban refrigeration unit energy consumption, and The suburban thermal energy consumption is measured under transition and thermal engine conditions, respectively. ; High-speed energy consumption in a single temperature zone; The input represents the percentage of urban travel during work hours. The input represents the percentage of suburban travel during work hours. The percentage of high-speed travel conditions input;

[0021] The calculation method for the comprehensive energy consumption level across the entire temperature range and all operating conditions throughout the year is as follows:

[0022] ;

[0023] in, This represents the comprehensive energy consumption level across the entire year, temperature range, and operating conditions. This represents the comprehensive energy consumption level under all operating conditions in spring and autumn. This represents the comprehensive energy consumption level under all operating conditions in summer. This represents the comprehensive energy consumption level under all operating conditions during normal winter. This represents the overall energy consumption level under all operating conditions during cold winters. This represents the comprehensive energy consumption level under all operating conditions during extremely cold winters. , , , and These represent the percentages of travel throughout the year in spring and autumn, summer, ordinary winter, cold winter, and extremely cold winter, respectively.

[0024] The method for calculating the driving range under different temperature range usage scenarios is as follows: ,in, , , , and The driving range is measured in different usage scenarios: spring and autumn, summer, normal winter, cold winter, and extreme cold winter. This is the range of electricity consumption for your trip. This indicates the actual electricity consumption level during the spring and autumn seasons within the input travel electricity usage range. This indicates the actual electricity consumption level during the summer within the input travel electricity usage range. This indicates the actual electricity consumption level during a typical winter period within the input travel electricity usage range. This indicates the actual electricity consumption level during the cold winter months within the input travel electricity usage range. This indicates the actual electricity consumption level during the extremely cold winter months within the input travel electricity usage range. This represents the comprehensive energy consumption level under all operating conditions in spring and autumn. This represents the comprehensive energy consumption level under all operating conditions in summer. This represents the comprehensive energy consumption level under all operating conditions during normal winter. This represents the overall energy consumption level under all operating conditions during cold winters. This represents the comprehensive energy consumption level under all operating conditions during extremely cold winters.

[0025] The technical solution adopted by this invention to solve its technical problem is: to provide an evaluation device for the comprehensive energy consumption and range of a pure electric vehicle, comprising:

[0026] The statistics module is used to collect vehicle driving information of users under different travel conditions and generate road spectrum information for different travel conditions;

[0027] The first determining module is used to determine the different temperature ranges for energy consumption testing and to define the vehicle test boundaries;

[0028] The second determining module is used to determine the energy consumption test conditions and battery discharge conditions based on road spectrum information for different travel conditions.

[0029] The first test module is used to test the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions within the vehicle test boundary.

[0030] The second test module is used to test the actual charge level of the vehicle under different charge usage windows in different temperature ranges and battery discharge conditions.

[0031] The first calculation module is used to calculate the vehicle's actual usage scenario energy consumption based on the actual temperature range ratio, operating condition ratio, power consumption interval, and travel time input in the usage scenario, and combined with the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions. The vehicle's actual usage scenario energy consumption includes the comprehensive energy consumption level of a single temperature zone under all operating conditions and the comprehensive energy consumption level of the entire temperature range under all operating conditions throughout the year.

[0032] The second calculation module is used to calculate the driving range under different temperature range usage scenarios based on the actual power level of the vehicle under different power usage windows and the comprehensive energy consumption level of the single temperature zone under all operating conditions in different temperature ranges and battery discharge conditions.

[0033] The technical solution adopted by the present invention to solve its technical problem is: to provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the above-mentioned evaluation method for the comprehensive energy consumption and range of pure electric vehicles.

[0034] The technical solution adopted by the present invention to solve its technical problem is: to provide a computer-readable storage medium on which a computer program is stored, wherein when the computer program is executed by a processor, the steps of the above-mentioned evaluation method for the comprehensive energy consumption and range of pure electric vehicles are implemented.

[0035] Beneficial effects

[0036] By adopting the above-mentioned technical solution, this invention has the following advantages and positive effects compared with the prior art: This invention comprehensively considers the factors affecting the energy consumption and range of pure electric vehicles, and provides basic energy consumption and basic battery charge levels under different temperatures, driving conditions, travel times, and battery charge ranges. Users can input the driving conditions, temperature, and battery charge range according to their daily usage to obtain energy consumption and range levels that are closer to daily use, reducing the limitations of the lower boundary of the existing unified testing method and providing users with more realistic and comprehensive energy consumption and range information. Attached Figure Description

[0037] Figure 1 This is a flowchart of the evaluation method for the comprehensive energy consumption and range of a pure electric vehicle according to the first embodiment of the present invention. Detailed Implementation

[0038] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0039] The first embodiment of the present invention relates to a method for evaluating the comprehensive energy consumption and range of a pure electric vehicle, such as... Figure 1 As shown, it includes the following steps:

[0040] Step 1: Collect data on users' vehicle driving information under different travel conditions and generate road spectrum information for different travel conditions.

[0041] In this step, travel conditions are categorized into urban, suburban, and highway travel conditions based on their differences. This involves comprehensively collecting vehicle driving information for each travel condition, including travel time, travel distance, driving speed, battery usage range, and annual travel temperature, with a data collection frequency of at least 10Hz. Based on the information collected for each travel condition, universally applicable road spectrum curves for urban, suburban, and highway travel conditions are generated. The horizontal axis of the road spectrum curve represents travel time t (in seconds), and the vertical axis represents vehicle speed v (in km / h), with a data interval of 1 second.

[0042] Step 2: Determine the different temperature ranges for energy consumption testing and define the vehicle test boundaries.

[0043] In this step, based on the degree of influence of temperature on energy consumption, it is divided into five temperature ranges: spring and autumn, summer, ordinary winter, cold winter, and extreme cold winter. In this embodiment, the temperature range of the spring and autumn region is 10℃~30℃, i.e., [10℃, 30℃); the temperature range of the summer region is above 30℃, i.e., [30℃, +∞); the temperature range of the ordinary winter region is 0℃~10℃, i.e., [0℃, 10℃); the temperature range of the cold winter region is -10℃~0℃, i.e., [-10℃, 0℃); and the temperature range of the extreme cold winter region is below -10℃, i.e., (-∞, -10℃).

[0044] The vehicle test boundaries in this step include temperature test boundaries, battery power test boundaries, and air conditioning usage.

[0045] Temperature test boundaries: To simplify the test process, representative temperature points are selected for each of the above temperature ranges as the test energy consumption benchmarks. 20℃ is selected as the test temperature in spring and autumn, 35℃ in summer, 5℃ in ordinary winter, -7℃ in cold winter, and -20℃ in extremely cold winter.

[0046] Vehicle battery level test boundary: The vehicle test battery level range is selected as 50%~60% of the state of charge (too high a charge level limits battery recovery capability / too low a charge level limits power).

[0047] Vehicle air conditioning usage: To closely resemble actual user scenarios, the air conditioning was kept on throughout the entire temperature range in this test specification, and the air conditioning setting was set to Auto 22℃. Before the test, the vehicle was charged to the required power level and immersed in the vehicle for 12 hours.

[0048] Step 3: Determine the energy consumption test conditions and battery discharge conditions based on the road spectrum information of different travel conditions.

[0049] Since actual user travel times vary, this implementation defines periods shorter than 30 minutes as cold driving conditions, and periods longer than 30 minutes as hot driving conditions. In practice, highway driving scenarios are almost always hot engine conditions. To fully test the vehicle's energy consumption data under different operating conditions, two test routes—urban and suburban—were established. Since only hot-state testing is conducted on highways, highway testing is performed after urban hot engine testing. The urban driving test cycle consists of three urban cycles and one highway cycle. The first urban cycle represents the vehicle's energy consumption level under cold conditions, i.e., the urban cold engine energy consumption test condition; the second urban cycle represents the vehicle's energy consumption level during the transition to a hot engine state; and the third urban cycle represents the vehicle's energy consumption level under a hot engine state. The second and third urban cycles together represent the urban hot engine energy consumption test condition, where vehicle power consumption equals the power consumption of all energy storage devices divided by the total mileage traveled. The highway cycle represents the vehicle's energy consumption level at high speeds, i.e., the high-speed energy consumption test condition. Similarly, the suburban operating condition test consists of three suburban cycles. The first suburban cycle represents the energy consumption level of the vehicle under cold conditions, i.e., the suburban cold engine energy consumption test condition. The second suburban cycle represents the energy consumption level of the vehicle under warm engine transition conditions, and the third suburban cycle represents the energy consumption level of the vehicle under warm engine conditions. The second and third suburban cycles together represent the suburban warm engine energy consumption test condition. To shorten the test cycle through rapid discharge, the discharge condition in this embodiment adopts a constant speed of 100 km / h. Before discharge, the vehicle is immersed in the test temperature environment for 12 to 15 hours to ensure that the vehicle battery temperature, oil temperature, and water temperature are consistent with the test environment.

[0050] Step 4: Within the vehicle test boundary, test the basic energy consumption data of the vehicle under different temperature ranges and different energy consumption test conditions. The obtained basic energy consumption data is shown in Table 1. All energy consumption data are in kW.h / 100km and the results are retained to two decimal places.

[0051] Table 1 Basic Energy Consumption Data

[0052]

[0053] Step 5: Test the actual battery level of the vehicle under different battery usage windows in different temperature ranges and battery discharge conditions.

[0054] The battery level was based on the State of Charge (SOC) level displayed on the vehicle's instrument panel or infotainment screen, with each 10% increment serving as a recording node. The test ended when the displayed SOC reached 0. Therefore, the basic battery capacity data obtained after the test is shown in Table 2. All test capacity units are in kW.h, and results are rounded to two decimal places.

[0055] Table 2 Basic Battery Capacity Data

[0056]

[0057] Step 6: Input the actual travel temperature range percentage, travel operating condition percentage, travel power consumption interval, and travel time according to the usage scenario. Combine this with the vehicle's basic energy consumption data under different temperature ranges and energy consumption test conditions to calculate the vehicle's actual usage scenario energy consumption. The actual usage scenario energy consumption includes the comprehensive energy consumption level under all operating conditions in a single temperature zone and the comprehensive energy consumption level under all operating conditions throughout the year.

[0058] In this step, input the actual travel temperature range percentage, travel operating condition percentage, travel power consumption range, and travel time according to the usage scenario, as shown in Table 3.

[0059] Table 3 Usage Scenario Input Table

[0060]

[0061] Calculate the energy consumption of vehicles in real-world usage scenarios:

[0062] Energy consumption in a single-temperature urban area: for the above-mentioned daily single-trip time in the urban area For periods of less than 30 minutes, the energy consumption in a single-temperature zone within the urban area should be referenced to the energy consumption level under cold operating conditions in the urban area. Regarding travel time For those exceeding 30 minutes, calculate , The calculation method for energy consumption in a single-temperature zone in urban areas is as follows, rounded up: .

[0063] Energy consumption in suburban areas under a single temperature zone: For the above-mentioned daily single-trip time in suburban areas For periods of less than 30 minutes, the energy consumption in a single-temperature zone in suburban areas should be referenced to the energy consumption level under cold-state operating conditions in suburban areas. For daily one-way travel time in the suburbs For those longer than 30 minutes, calculate The calculation method for energy consumption in suburban areas with a single temperature zone is as follows: .

[0064] Single-temperature zone high-speed energy consumption: Based on the basic energy consumption tested in actual usage scenarios, i.e. .

[0065] The calculation method for the comprehensive energy consumption level of a single temperature zone under all operating conditions is as follows:

[0066] ;

[0067] in, This represents the comprehensive energy consumption level under all operating conditions in a single temperature zone.

[0068] The calculation method for the comprehensive energy consumption level across the entire temperature range and all operating conditions throughout the year is as follows:

[0069] ;

[0070] in, This represents the comprehensive energy consumption level across the entire year, temperature range, and operating conditions. This represents the comprehensive energy consumption level under all operating conditions in spring and autumn. This represents the comprehensive energy consumption level under all operating conditions in summer. This represents the comprehensive energy consumption level under all operating conditions during normal winter. This represents the overall energy consumption level under all operating conditions during cold winters. This represents the comprehensive energy consumption level under all operating conditions during extremely cold winters.

[0071] Step 7: Calculate the driving range under different temperature range usage scenarios based on the actual power level of the vehicle under different power usage windows and the comprehensive energy consumption level of the single temperature zone under all operating conditions in different temperature ranges and battery discharge conditions.

[0072] In this step, the input travel electricity usage range is used. Extract the actual electricity usage from the aforementioned basic discharge data. ; This indicates the actual electricity consumption level during the spring and autumn seasons within the input travel electricity usage range. This indicates the actual electricity consumption level during the summer within the input travel electricity usage range. This indicates the actual electricity consumption level during a typical winter period within the input travel electricity usage range. This indicates the actual electricity consumption level during the cold winter months within the input travel electricity usage range. This indicates the actual electricity consumption level during the extremely cold winter months within the input travel electricity usage range.

[0073] The formulas for calculating the driving range under different temperature range usage scenarios are as follows:

[0074] ;

[0075] in, , , , and The driving range is measured under different usage scenarios: spring and autumn, summer, normal winter, cold winter, and extreme cold winter. This represents the comprehensive energy consumption level under all operating conditions in spring and autumn. This represents the comprehensive energy consumption level under all operating conditions in summer. This represents the comprehensive energy consumption level under all operating conditions during normal winter. This represents the overall energy consumption level under all operating conditions during cold winters. This represents the comprehensive energy consumption level under all operating conditions during extremely cold winters.

[0076] It is easy to see that this invention comprehensively considers the factors affecting the energy consumption and range of pure electric vehicles, and provides basic energy consumption and basic battery charge levels under different temperatures, driving conditions, travel times, and battery charge ranges. Users can input the driving conditions, temperature, and battery charge range according to their daily usage to obtain energy consumption and range levels that are closer to daily use. This reduces the limitations of the lower boundary of existing unified testing methods and provides users with more realistic and comprehensive energy consumption and range information.

[0077] The second embodiment of the present invention relates to an evaluation device for the comprehensive energy consumption and range of a pure electric vehicle, comprising:

[0078] The statistics module is used to collect vehicle driving information of users under different travel conditions and generate road spectrum information for different travel conditions;

[0079] The first determining module is used to determine the different temperature ranges for energy consumption testing and to define the vehicle test boundaries;

[0080] The second determining module is used to determine the energy consumption test conditions and battery discharge conditions based on road spectrum information for different travel conditions.

[0081] The first test module is used to test the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions within the vehicle test boundary.

[0082] The second test module is used to test the actual charge level of the vehicle under different charge usage windows in different temperature ranges and battery discharge conditions.

[0083] The first calculation module is used to calculate the vehicle's actual usage scenario energy consumption based on the actual temperature range ratio, operating condition ratio, power consumption interval, and travel time input in the usage scenario, and combined with the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions. The vehicle's actual usage scenario energy consumption includes the comprehensive energy consumption level of a single temperature zone under all operating conditions and the comprehensive energy consumption level of the entire temperature range under all operating conditions throughout the year.

[0084] The second calculation module is used to calculate the driving range under different temperature range usage scenarios based on the actual power level of the vehicle under different power usage windows and the comprehensive energy consumption level of the single temperature zone under all operating conditions in different temperature ranges and battery discharge conditions.

[0085] The road spectrum information for different travel conditions includes urban road spectrum curves, suburban road spectrum curves, and highway road spectrum curves. The horizontal axis of the road spectrum curve represents travel time, the vertical axis represents vehicle speed, and the data interval is 1 second.

[0086] The different temperature ranges include spring and autumn regions, summer regions, ordinary winter regions, cold winter regions, and extreme cold winter regions. Specifically, the temperature range of the spring and autumn regions is 10℃ to 30℃; the temperature range of the summer regions is above 30℃; the temperature range of the ordinary winter regions is 0℃ to 10℃; the temperature range of the cold winter regions is -10℃ to 0℃; and the temperature range of the extreme cold winter regions is below -10℃.

[0087] The vehicle test boundaries include temperature test boundaries, battery level test boundaries, and air conditioning usage conditions. Specifically, the temperature test boundaries are: 20℃ in spring and autumn, 35℃ in summer, 5℃ in normal winter, -7℃ in cold winter, and -20℃ in extremely cold winter. The battery level test boundary is a state of charge of 50% to 60%. The air conditioning usage conditions are: the air conditioning is set to Auto 22℃.

[0088] The energy consumption test conditions include urban cold-running energy consumption test conditions, urban hot-running energy consumption test conditions, suburban cold-running energy consumption test conditions, suburban hot-running energy consumption test conditions, and highway energy consumption test conditions; where cold-running means a travel time of no more than 30 minutes, and hot-running means a travel time of more than 30 minutes.

[0089] The first calculation module through Calculate the comprehensive energy consumption level under all operating conditions in a single temperature zone, where, This represents the comprehensive energy consumption level across all operating conditions in a single temperature zone. For single-temperature zone urban energy consumption, when the input is the single urban trip time No more than 30 minutes When the time for a single trip in the city When it exceeds 30 minutes, , For urban refrigeration unit energy consumption, and The figures represent urban heat engine energy consumption under transition and heat engine conditions, respectively. , Indicates rounding up; For single-temperature suburban energy consumption, when the single trip time in the suburbs... No more than 30 minutes When the single trip time in the suburbs When it exceeds 30 minutes, ; For suburban refrigeration unit energy consumption, and The suburban thermal energy consumption is measured under transition and thermal engine conditions, respectively. ; High-speed energy consumption in a single temperature zone; The input represents the percentage of urban travel during work hours. The input represents the percentage of suburban travel during work hours. The percentage of high-speed travel conditions input;

[0090] The first calculation module through Calculate the comprehensive energy consumption level across the entire temperature range and all operating conditions throughout the year, including This represents the comprehensive energy consumption level across the entire year, temperature range, and operating conditions. This represents the comprehensive energy consumption level under all operating conditions in spring and autumn. This represents the comprehensive energy consumption level under all operating conditions in summer. This represents the comprehensive energy consumption level under all operating conditions during normal winter. This represents the overall energy consumption level under all operating conditions during cold winters. This represents the comprehensive energy consumption level under all operating conditions during extremely cold winters. , , , and These represent the percentages of travel throughout the year in spring and autumn, summer, ordinary winter, cold winter, and extremely cold winter, respectively.

[0091] The second calculation module through Calculate the driving range under different temperature range usage scenarios, where, , , , and The driving range is measured in different usage scenarios: spring and autumn, summer, normal winter, cold winter, and extreme cold winter. This is the range of electricity consumption for your trip. This indicates the actual electricity consumption level during the spring and autumn seasons within the input travel electricity usage range. This indicates the actual electricity consumption level during the summer within the input travel electricity usage range. This indicates the actual electricity consumption level during a typical winter period within the input travel electricity usage range. This indicates the actual electricity consumption level during the cold winter months within the input travel electricity usage range. This indicates the actual electricity consumption level during the extremely cold winter months within the input travel electricity usage range. This represents the comprehensive energy consumption level under all operating conditions in spring and autumn. This represents the comprehensive energy consumption level under all operating conditions in summer. This represents the comprehensive energy consumption level under all operating conditions during normal winter. This represents the overall energy consumption level under all operating conditions during cold winters. This represents the comprehensive energy consumption level under all operating conditions during extremely cold winters.

[0092] The third embodiment of the present invention relates to an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the evaluation method for the comprehensive energy consumption and range of a pure electric vehicle according to the first embodiment.

[0093] The fourth embodiment of the present invention relates to a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the evaluation method for the comprehensive energy consumption and range of a pure electric vehicle according to the first embodiment.

[0094] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0095] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0096] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction methods implemented in a process. Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0097] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0098] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for evaluating the comprehensive energy consumption and range of a pure electric vehicle, characterized in that, Includes the following steps: Collect data on users' vehicle driving information under different travel conditions and generate road spectrum information for different travel conditions; Determine the different temperature ranges for energy consumption testing and define the vehicle test boundaries; The energy consumption test conditions and battery discharge conditions are determined based on road spectrum information under different travel conditions. Within the vehicle test boundary, test the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions. The actual battery level of the vehicle under different battery usage windows in different temperature ranges and battery discharge conditions was tested. Based on the actual usage scenario, input the travel temperature range percentage, travel operating condition percentage, travel power usage range, and travel time, and combine the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions to calculate the vehicle's actual usage scenario energy consumption; the vehicle's actual usage scenario energy consumption includes the comprehensive energy consumption level of a single temperature zone under all operating conditions and the comprehensive energy consumption level of the entire temperature range under all operating conditions throughout the year. The calculation method for the comprehensive energy consumption level under all operating conditions in the single temperature zone is as follows: ； in, This represents the comprehensive energy consumption level across all operating conditions in a single temperature zone. For single-temperature zone urban energy consumption, when the input is the single urban trip time No more than 30 minutes When the time for a single trip in the city When it exceeds 30 minutes, , For urban refrigeration unit energy consumption, and The figures represent urban heat engine energy consumption under transition and heat engine conditions, respectively. , Indicates rounding up; For single-temperature suburban energy consumption, when the single trip time in the suburbs... No more than 30 minutes When the single trip time in the suburbs When it exceeds 30 minutes, ; For suburban refrigeration unit energy consumption, and The suburban thermal energy consumption is measured under transition and thermal engine conditions, respectively. ; High-speed energy consumption in a single temperature zone; The input represents the percentage of urban travel during work hours. The input represents the percentage of suburban travel during work hours. The percentage of high-speed travel conditions input; The calculation method for the comprehensive energy consumption level across the entire temperature range and all operating conditions throughout the year is as follows: ； in, This represents the comprehensive energy consumption level across the entire year, temperature range, and operating conditions. This represents the comprehensive energy consumption level under all operating conditions in spring and autumn. This represents the comprehensive energy consumption level under all operating conditions in summer. This represents the comprehensive energy consumption level under all operating conditions during normal winter. This represents the overall energy consumption level under all operating conditions during cold winters. This represents the comprehensive energy consumption level under all operating conditions during extremely cold winters. , , , and These represent the percentages of travel throughout the year in spring and autumn, summer, ordinary winter, cold winter, and extreme cold winter, respectively. The driving range under different temperature ranges is calculated based on the actual battery level of the vehicle in different battery usage windows under different temperature ranges and battery discharge conditions, as well as the comprehensive energy consumption level of the vehicle under all operating conditions in a single temperature zone.

2. The evaluation method for the comprehensive energy consumption and range of a pure electric vehicle according to claim 1, characterized in that, The road spectrum information for different travel conditions includes urban road spectrum curves, suburban road spectrum curves, and highway road spectrum curves. The horizontal axis of the road spectrum curve represents travel time, the vertical axis represents vehicle speed, and the data interval is 1 second.

3. The evaluation method for the comprehensive energy consumption and range of a pure electric vehicle according to claim 1, characterized in that, The different temperature ranges include spring and autumn regions, summer regions, ordinary winter regions, cold winter regions, and extreme cold winter regions. Specifically, the temperature range of the spring and autumn regions is 10℃ to 30℃; the temperature range of the summer regions is above 30℃; the temperature range of the ordinary winter regions is 0℃ to 10℃; the temperature range of the cold winter regions is -10℃ to 0℃; and the temperature range of the extreme cold winter regions is below -10℃.

4. The evaluation method for the comprehensive energy consumption and range of a pure electric vehicle according to claim 1, characterized in that, The vehicle test boundaries include temperature test boundaries, battery level test boundaries, and air conditioning usage conditions. Specifically, the temperature test boundaries are: 20℃ in spring and autumn, 35℃ in summer, 5℃ in normal winter, -7℃ in cold winter, and -20℃ in extremely cold winter. The battery level test boundary is a state of charge of 50% to 60%. The air conditioning usage conditions are: the air conditioning is set to Auto 22℃.

5. The method for evaluating the comprehensive energy consumption and range of a pure electric vehicle according to claim 1, characterized in that, The energy consumption test conditions include urban cold-running energy consumption test conditions, urban hot-running energy consumption test conditions, suburban cold-running energy consumption test conditions, suburban hot-running energy consumption test conditions, and highway energy consumption test conditions; where cold-running means a travel time of no more than 30 minutes, and hot-running means a travel time of more than 30 minutes.

6. The method for evaluating the comprehensive energy consumption and range of a pure electric vehicle according to claim 1, characterized in that, The method for calculating the driving range under different temperature range usage scenarios is as follows: ,in, , , , and The driving range is measured in different usage scenarios: spring and autumn, summer, normal winter, cold winter, and extreme cold winter. This is the range of electricity consumption for your trip. This indicates the actual electricity consumption level during the spring and autumn seasons within the input travel electricity usage range. This indicates the actual electricity consumption level during the summer within the input travel electricity usage range. This indicates the actual electricity consumption level during a typical winter period within the input travel electricity usage range. This indicates the actual electricity consumption level during the cold winter months within the input travel electricity usage range. This indicates the actual electricity consumption level during the extremely cold winter months within the input travel electricity usage range. This represents the comprehensive energy consumption level under all operating conditions in spring and autumn. This represents the comprehensive energy consumption level under all operating conditions in summer. This represents the comprehensive energy consumption level under all operating conditions during normal winter. This represents the overall energy consumption level under all operating conditions during cold winters. This represents the comprehensive energy consumption level under all operating conditions during extremely cold winters.

7. A device for evaluating the comprehensive energy consumption and range of a pure electric vehicle, characterized in that, include: The statistics module is used to collect vehicle driving information of users under different travel conditions and generate road spectrum information for different travel conditions; The first determining module is used to determine the different temperature ranges for energy consumption testing and to define the vehicle test boundaries; The second determining module is used to determine the energy consumption test conditions and battery discharge conditions based on road spectrum information for different travel conditions. The first test module is used to test the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions within the vehicle test boundary. The second test module is used to test the actual charge level of the vehicle under different charge usage windows in different temperature ranges and battery discharge conditions. The first calculation module is used to calculate the vehicle's actual usage scenario energy consumption based on the actual temperature range ratio, operating condition ratio, power consumption interval, and travel time input in the usage scenario, and combined with the vehicle's basic energy consumption data under different temperature ranges and different energy consumption test conditions. The vehicle's actual usage scenario energy consumption includes the comprehensive energy consumption level of a single temperature zone under all operating conditions and the comprehensive energy consumption level of the entire temperature range under all operating conditions throughout the year. The first calculation module through Calculate the comprehensive energy consumption level under all operating conditions in a single temperature zone, where, This represents the comprehensive energy consumption level across all operating conditions in a single temperature zone. For single-temperature zone urban energy consumption, when the input is the single urban trip time No more than 30 minutes When the time for a single trip in the city When it exceeds 30 minutes, , For urban refrigeration unit energy consumption, and The figures represent urban heat engine energy consumption under transition and heat engine conditions, respectively. , Indicates rounding up; For single-temperature suburban energy consumption, when the single trip time in the suburbs... No more than 30 minutes When the single trip time in the suburbs When it exceeds 30 minutes, ; For suburban refrigeration unit energy consumption, and The suburban thermal energy consumption is measured under transition and thermal engine conditions, respectively. ; High-speed energy consumption in a single temperature zone; The input represents the percentage of urban travel during work hours. The input represents the percentage of suburban travel during work hours. The percentage of high-speed travel conditions input; The first calculation module through Calculate the comprehensive energy consumption level across the entire temperature range and all operating conditions throughout the year, including This represents the comprehensive energy consumption level across the entire year, temperature range, and operating conditions. This represents the comprehensive energy consumption level under all operating conditions in spring and autumn. This represents the comprehensive energy consumption level under all operating conditions in summer. This represents the comprehensive energy consumption level under all operating conditions during normal winter. This represents the overall energy consumption level under all operating conditions during cold winters. This represents the comprehensive energy consumption level under all operating conditions during extremely cold winters. , , , and These represent the percentages of travel throughout the year in spring and autumn, summer, ordinary winter, cold winter, and extreme cold winter, respectively. The second calculation module is used to calculate the driving range under different temperature range usage scenarios based on the actual power level of the vehicle under different power usage windows and the comprehensive energy consumption level of the single temperature zone under all operating conditions in different temperature ranges and battery discharge conditions.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the evaluation method for the comprehensive energy consumption and range of a pure electric vehicle as described in any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the evaluation method for the comprehensive energy consumption and range of a pure electric vehicle as described in any one of claims 1-6.

Images