A multi-scenario pure electric vehicle driving range test method, system and vehicle

Abstract

The present invention discloses a multi-scenario pure electric vehicle driving range test method, system and vehicle, the method comprising: constructing a driving condition of a pure electric vehicle; constructing a plurality of temperature conditions based on user travel environment data; cross-combining the driving condition and the temperature conditions to obtain a test scenario matrix, wherein the elements of the test scenario matrix are the vehicle air conditioning setting strategies of the pure electric vehicle in each test scenario, and each test scenario includes corresponding driving conditions and temperature conditions; controlling the pure electric vehicle to perform driving range tests respectively under each temperature condition to obtain test data of the pure electric vehicle in each test scenario; performing computational processing on the test data to obtain a driving range matrix of the pure electric vehicle, wherein the elements of the driving range matrix are the driving range of the pure electric vehicle in each test scenario. The present invention can more comprehensively and accurately evaluate the driving range of a pure electric vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a multi-scenario pure electric vehicle driving range testing method, system and vehicle. Background Art

[0002] At present, the actual mileage compliance rate of pure electric vehicles is generally low. Users' expectations of mileage are mainly based on the "light vehicle energy consumption label" attached to the vehicle. However, the mileage data provided by this label is only the test result under a specific operating condition (i.e. CLTC, China's passenger car driving condition) and a single scene (normal temperature environment). This test method obviously cannot fully reflect the performance of the vehicle in various complex and changeable actual user usage scenarios, such as high-speed driving, low temperature environment, high temperature environment, etc.

[0003] In order to more accurately evaluate the driving range of pure electric vehicles in different scenarios, some independent test methods have emerged in the prior art. For example, low-temperature driving range test method and high-temperature driving range test method. However, these test methods still have some obvious limitations: 1) The scenarios covered by these test methods are relatively single and cannot fully cover the various actual usage scenarios that users may encounter; 2) It takes a lot of time to complete the endurance test of a single scenario, usually at least 4 hours. Moreover, after completing the test of each scenario, the power battery needs to be fully charged in order to test the next scenario.

[0004] Therefore, it is urgent to propose a comprehensive, accurate and efficient pure electric vehicle range testing method. Summary of the invention

[0005] In order to solve the technical problems of single test scenario and low test efficiency in the prior art, the present invention provides a multi-scenario pure electric vehicle driving range test method, system and vehicle.

[0006] In a first aspect, an embodiment of the present invention provides a multi-scenario pure electric vehicle driving range test method, comprising: constructing a driving condition of a pure electric vehicle, wherein the driving condition includes a commuting condition and a high-speed condition; Constructing a plurality of temperature conditions based on the user travel environment data, wherein the user travel environment data includes the user travel environment temperature, and the temperature conditions include a normal temperature condition, a low temperature condition, and a high temperature condition; Cross-combining the driving conditions and the temperature conditions to obtain a test scenario matrix, wherein the elements of the test scenario matrix are vehicle air conditioning setting strategies of the pure electric vehicle in each test scenario, and each of the test scenarios includes corresponding driving conditions and temperature conditions; Controlling the pure electric vehicle to perform a driving range test under each of the temperature conditions to obtain test data of the pure electric vehicle under each of the test scenarios, wherein the test data includes power consumption and driving range of the pure electric vehicle; The test data is processed to obtain a driving range matrix of the pure electric vehicle, wherein the elements of the driving range matrix are the driving range of the pure electric vehicle in each of the test scenarios.

[0007] Preferably, controlling the pure electric vehicle to perform a driving range test under each of the temperature conditions to obtain test data of the pure electric vehicle under each of the test scenarios includes: Controlling the pure electric vehicle to perform a driving range test in a discharge cycle under the normal temperature condition according to a corresponding vehicle air conditioning setting strategy, and obtaining test data of each test scenario of the pure electric vehicle under the normal temperature condition, wherein the discharge cycle is when the pure electric vehicle is discharged from a fully charged state until it cannot reach a test vehicle speed; Controlling the pure electric vehicle to perform a driving range test within the discharge cycle under the low temperature condition according to a corresponding vehicle air conditioning setting strategy, and obtaining test data of each test scenario of the pure electric vehicle under the low temperature condition; The pure electric vehicle is controlled to perform a driving range test within the discharge cycle under the high temperature condition according to a corresponding vehicle air conditioning setting strategy, and test data of each test scenario of the pure electric vehicle under the high temperature condition is obtained.

[0008] Preferably, the controlling the pure electric vehicle to perform a driving range test in a discharge cycle according to a corresponding vehicle air conditioning setting strategy under the normal temperature condition to obtain test data of each test scenario of the pure electric vehicle under the normal temperature condition includes: Controlling the pure electric vehicle to execute a corresponding vehicle air conditioning setting strategy based on the normal temperature condition, wherein the vehicle air conditioning setting strategy includes turning off the air conditioner and the blower; Starting a discharge cycle, controlling the pure electric vehicle to continuously perform a plurality of commuting conditions and a plurality of high-speed conditions, and recording the power consumption and mileage of the pure electric vehicle in each of the commuting conditions, and the power consumption and mileage of the pure electric vehicle in each of the high-speed conditions; The pure electric vehicle is controlled to continue running at the test speed until the discharge cycle ends, and the power consumption of the pure electric vehicle when running at the test speed is recorded.

[0009] Preferably, the controlling the pure electric vehicle to perform a driving range test within the discharge cycle under the low temperature condition according to a corresponding vehicle air conditioning setting strategy to obtain test data of each test scenario of the pure electric vehicle under the low temperature condition includes: Based on the low temperature condition, the pure electric vehicle is controlled to execute a corresponding vehicle air conditioning setting strategy, wherein the vehicle air conditioning setting strategy includes turning on air conditioning heating so that the temperature inside the pure electric vehicle meets the normal temperature condition; Starting a discharge cycle, controlling the pure electric vehicle to continuously perform a plurality of commuting conditions and a plurality of high-speed conditions, and recording the power consumption and mileage of the pure electric vehicle in each of the commuting conditions, and the power consumption and mileage of the pure electric vehicle in each of the high-speed conditions; The pure electric vehicle is controlled to continue running at the test speed until the discharge cycle ends, and the power consumption of the pure electric vehicle when running at the test speed is recorded.

[0010] Preferably, the controlling the pure electric vehicle to perform a driving range test in the discharge cycle according to a corresponding vehicle air conditioning setting strategy under the high temperature condition to obtain test data of each test scenario of the pure electric vehicle under the high temperature condition includes: Based on the high temperature condition, the pure electric vehicle is controlled to execute a corresponding vehicle air conditioning setting strategy, wherein the vehicle air conditioning setting strategy includes turning on air conditioning refrigeration so that the temperature inside the pure electric vehicle meets the normal temperature condition; Starting a discharge cycle, controlling the pure electric vehicle to continuously perform a plurality of commuting conditions and a plurality of high-speed conditions, and recording the power consumption and mileage of the pure electric vehicle in each of the commuting conditions, and the power consumption and mileage of the pure electric vehicle in each of the high-speed conditions; The pure electric vehicle is controlled to continue running at the test speed until the discharge cycle ends, and the power consumption of the pure electric vehicle when running at the test speed is recorded.

[0011] Preferably, the processing of the test data to obtain the driving range matrix of the pure electric vehicle includes: The driving range of the pure electric vehicle in each of the test scenarios is calculated based on a preset formula, wherein the preset formula is as follows: Among them, BER represents the driving range of pure electric vehicles in the corresponding test scenarios, E REESS,STP Indicates the total power consumption of pure electric vehicles in the corresponding test scenario, EC DCIndicates the energy consumption of a pure electric vehicle in the corresponding test scenario.

[0012] Preferably, the energy consumption of the pure electric vehicle in each of the test scenarios is calculated using the following formula: Among them, EC DC Indicates the energy consumption of pure electric vehicles in the corresponding test scenario, ΔE REESS,DS It represents the power consumption of pure electric vehicles under corresponding driving conditions, and d represents the mileage of pure electric vehicles under corresponding driving conditions.

[0013] Preferably, the constructing of the driving condition of the pure electric vehicle includes: The CLTC condition is characterized as a commuting condition, and the WLTC_EXH condition is characterized as a high-speed condition.

[0014] In a second aspect, an embodiment of the present invention provides a multi-scenario pure electric vehicle driving range test system, comprising: a driving condition construction module, used to construct a driving condition of a pure electric vehicle, wherein the driving condition includes a commuting condition and a high-speed condition; A temperature condition building module, used to build a plurality of temperature conditions based on user travel environment data, wherein the user travel environment data includes the user travel environment temperature, and the temperature conditions include normal temperature conditions, low temperature conditions and high temperature conditions; A scenario matrix construction module, used for cross-combining the driving conditions and the temperature conditions to obtain a test scenario matrix, wherein the elements of the test scenario matrix are vehicle air conditioning setting strategies of the pure electric vehicle in each test scenario, and each of the test scenarios includes corresponding driving conditions and temperature conditions; A driving range test module, used to control the pure electric vehicle to perform a driving range test under each of the temperature conditions, and obtain test data of the pure electric vehicle under each of the test scenarios, wherein the test data includes the power consumption and driving range of the pure electric vehicle; The operation processing module is used to perform operation processing on the test data to obtain the driving range matrix of the pure electric vehicle, wherein the elements of the driving range matrix are the driving range of the pure electric vehicle in each of the test scenarios.

[0015] In a third aspect, an embodiment of the present invention provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the multi-scenario pure electric vehicle driving range test method as described above.

[0016] Compared with the prior art, the multi-scenario pure electric vehicle driving range test method, system and vehicle of the embodiment of the present invention have the following beneficial effects: based on the test scenario matrix, the multi-scenario pure electric vehicle driving range test is realized, and by shortening the driving range test time of a single scenario, the expected driving range target of the pure electric vehicle is finally presented in the form of a driving range matrix, which can more comprehensively and accurately evaluate the driving range of the pure electric vehicle. Moreover, the research and development of automobile energy-saving technology based on the present invention can verify that the reliability of the conclusion is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flowchart of a method for testing the driving range of a multi-scenario pure electric vehicle according to an embodiment of the present invention; Figure 2 is a schematic diagram of a commuting condition according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a high-speed working condition of an embodiment of the present invention; Figure 4 is a schematic diagram of a process flow of a driving range test according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a multi-scenario pure electric vehicle driving range test system according to an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0020] like Figure 1 As shown, an embodiment of the present invention provides a multi-scenario pure electric vehicle driving range test method, comprising the steps of: S1. Constructing the driving conditions of pure electric vehicles; The driving conditions include commuting conditions and high-speed conditions. Specifically, the CLTC condition is characterized as the commuting condition, and the WLTC_EXH condition is characterized as the high-speed condition. The Chinese Passenger Car Driving Condition (CLTC) in GB 38146.1-2019 is used to represent the commuting condition of users traveling to and from get off work. Figure 2The WLTC ultra-high speed section (WLTC_EXH) in Appendix CA of GB 18352.6-2016 is used to indicate the high-speed condition of long-distance travel for users. Figure 3 .

[0021] S2. Constructing several temperature conditions based on the user's travel environment data; The user travel environment data includes the user travel environment temperature, and the temperature conditions include normal temperature conditions, low temperature conditions and high temperature conditions.

[0022] Specifically, the normal temperature condition is a temperature at which the user can feel comfortable without turning on the air conditioner for heating or cooling, that is, 22 to 24°C. In this embodiment, the normal temperature condition is set to 23°C. The low temperature condition is a temperature at which the air conditioner needs to be turned on for heating to maintain the user's comfort, that is, -8 to -6°C. In this embodiment, the low temperature condition is set to -7°C. The high temperature condition is a temperature and solar radiation intensity at which the air conditioner needs to be turned on for cooling to maintain the user's comfort, that is, 34 to 36°C and 830 to 870W / m 2 In this embodiment, the high temperature condition is set to 35°C.

[0023] S3, cross-combining driving conditions and temperature conditions to obtain a test scenario matrix; The elements of the test scenario matrix are the vehicle air conditioning setting strategies of the pure electric vehicle in each test scenario, and each test scenario includes corresponding driving conditions and temperature conditions. Specifically, the test scenario matrix of this embodiment is shown in Table 1.

[0024] Table 1 Test scenario matrix S4, controlling the pure electric vehicle to perform a driving range test under each temperature condition, and obtaining test data of the pure electric vehicle under each test scenario; The test data includes the power consumption and mileage of pure electric vehicles. Figure 4 As shown, step S4 includes: S401, controlling the pure electric vehicle to perform a driving range test in a discharge cycle according to a corresponding vehicle air conditioning setting strategy under normal temperature conditions, and obtaining test data of each test scenario of the pure electric vehicle under normal temperature conditions; The discharge cycle is when the pure electric vehicle is discharged from a fully charged state until it cannot reach the test speed. Specifically, step S401 includes: Step 1: Controlling the pure electric vehicle to execute a corresponding vehicle air conditioning setting strategy based on normal temperature conditions; Specifically, the vehicle air conditioning setting strategy under normal temperature conditions includes turning off the air conditioner and the blower.

[0025] Step 2: Start the discharge cycle, control the pure electric vehicle to continuously drive in several commuting conditions and several high-speed conditions, and record the power consumption and mileage of the pure electric vehicle in each commuting condition, as well as the power consumption and mileage of the pure electric vehicle in each high-speed condition; It should be noted that in this step, before starting the discharge cycle, the pure electric vehicle is charged in the soaking area. The temperature of the soaking area is set to 22-24°C during charging. When the on-board instrument shows that the REESS is fully charged, the charging is terminated. The temperature of the test chamber is set to 22-24°C, and the pure electric vehicle is left stationary in the test chamber for 4-12 hours. The load of the chassis dynamometer is set according to the driving resistance measured at an ambient temperature of 23°C.

[0026] Start the discharge cycle, control the pure electric vehicle to perform two commuting conditions and two high-speed conditions on the chassis dynamometer in sequence, and record the power consumption and mileage of the pure electric vehicle in each commuting condition, as well as the power consumption and mileage of the pure electric vehicle in each high-speed condition.

[0027] Step 3: Control the pure electric vehicle to continue running at the test speed until the discharge cycle ends, and record the power consumption of the pure electric vehicle when running at the test speed.

[0028] In this embodiment, the speed measurement speed is set to 120km / h. If the designed maximum speed of the pure electric vehicle is less than 120km / h, the test is conducted with the designed maximum speed of the pure electric vehicle as the speed measurement speed. It is understandable that the discharge cycle ends when the pure electric vehicle cannot reach the test speed, that is, when the pure electric vehicle still cannot reach the test speed even if the accelerator pedal is fully depressed.

[0029] S402, controlling the pure electric vehicle to perform a driving range test in a discharge cycle under low temperature conditions according to a corresponding vehicle air conditioning setting strategy, and obtaining test data of each test scenario of the pure electric vehicle under low temperature conditions; Specifically, step S402 includes: Step 1: Controlling the pure electric vehicle to execute a corresponding vehicle air conditioning setting strategy based on low temperature conditions; Specifically, the vehicle air conditioning setting strategy under low temperature conditions includes turning on the air conditioning for heating so that the temperature inside the pure electric vehicle meets the normal temperature conditions. Referring to Table 1, the vehicle air conditioning setting strategy of this embodiment is turning on the air conditioning for heating; the vehicle temperature control target: reaching 23°C within 900 seconds, and then maintaining 22-24°C.

[0030] Step 2: Start the discharge cycle, control the pure electric vehicle to continuously drive in several commuting conditions and several high-speed conditions, and record the power consumption and mileage of the pure electric vehicle in each commuting condition, as well as the power consumption and mileage of the pure electric vehicle in each high-speed condition; It should be noted that in this step, before starting the discharge cycle, the pure electric vehicle is charged in the immersion area. The temperature of the immersion area is set to 22-24°C during charging. When the on-board instrument shows that the REESS is fully charged, the charging is terminated. The temperature of the test chamber is set to -8--6°C, and the pure electric vehicle is left stationary in the test chamber for 4-12 hours. The chassis dynamometer load is set according to the driving resistance measured at an ambient temperature of -7°C.

[0031] Start the discharge cycle, control the pure electric vehicle to perform two commuting conditions and two high-speed conditions on the chassis dynamometer in sequence, and record the power consumption and mileage of the pure electric vehicle in each commuting condition, as well as the power consumption and mileage of the pure electric vehicle in each high-speed condition.

[0032] Step 3: Control the pure electric vehicle to continue running at the test speed until the discharge cycle ends, and record the power consumption of the pure electric vehicle when running at the test speed.

[0033] In this embodiment, the speed measurement speed is set to 120km / h. If the designed maximum speed of the pure electric vehicle is less than 120km / h, the test is conducted with the designed maximum speed of the pure electric vehicle as the speed measurement speed. It is understandable that the discharge cycle ends when the pure electric vehicle cannot reach the test speed, that is, when the pure electric vehicle still cannot reach the test speed even if the accelerator pedal is fully depressed.

[0034] S403, controlling the pure electric vehicle to perform a driving range test within a discharge cycle under high temperature conditions according to a corresponding vehicle air conditioning setting strategy, and obtaining test data of each test scenario of the pure electric vehicle under high temperature conditions.

[0035] Specifically, step S403 includes: Step 1: Controlling the pure electric vehicle to execute a corresponding vehicle air conditioning setting strategy based on high temperature conditions; Specifically, the vehicle air conditioning setting strategy under high temperature conditions includes turning on the air conditioning to cool the vehicle so that the temperature inside the pure electric vehicle meets the normal temperature conditions. Referring to Table 1, the vehicle air conditioning setting strategy of this embodiment is to turn on the air conditioning to cool the vehicle; the vehicle temperature control target: reach 23°C within 900 seconds, and then maintain 22-24°C.

[0036] Step 2: Start the discharge cycle, control the pure electric vehicle to continuously drive in several commuting conditions and several high-speed conditions, and record the power consumption and mileage of the pure electric vehicle in each commuting condition, as well as the power consumption and mileage of the pure electric vehicle in each high-speed condition; It should be noted that in this step, before starting the discharge cycle, the pure electric vehicle is charged in the immersion area. The temperature of the immersion area is set to 22-24°C during charging. When the on-board instrument shows that the REESS is fully charged, the charging is terminated. The temperature of the test chamber is set to 34-36°C, and the simulated solar radiation intensity is 830-870W / m 2 , keep the pure electric vehicle still in the test chamber for more than 2 hours. The load of the chassis dynamometer is set according to the driving resistance measured at an ambient temperature of 35°C.

[0037] Start the discharge cycle, control the pure electric vehicle to perform two commuting conditions and two high-speed conditions on the chassis dynamometer in sequence, and record the power consumption and mileage of the pure electric vehicle in each commuting condition, as well as the power consumption and mileage of the pure electric vehicle in each high-speed condition.

[0038] Step 3: Control the pure electric vehicle to continue running at the test speed until the discharge cycle ends, and record the power consumption of the pure electric vehicle when running at the test speed.

[0039] In this embodiment, the speed measurement speed is set to 120km / h. If the designed maximum speed of the pure electric vehicle is less than 120km / h, the test is conducted with the designed maximum speed of the pure electric vehicle as the speed measurement speed. It is understandable that the discharge cycle ends when the pure electric vehicle cannot reach the test speed, that is, when the pure electric vehicle still cannot reach the test speed even if the accelerator pedal is fully depressed.

[0040] S5. Perform calculations on the test data to obtain a driving range matrix of the pure electric vehicle.

[0041] Specifically, the driving range of the pure electric vehicle in each test scenario is calculated based on a preset formula. The preset formula is as follows: Among them, BER represents the driving range of pure electric vehicles in the corresponding test scenario, in kilometers (km), E REESS,STP It indicates the total power consumption of pure electric vehicles in the corresponding test scenario, in watt-hours (Wh), EC DC It indicates the energy consumption of a pure electric vehicle in the corresponding test scenario, in watt-hours per kilometer (Wh / km).

[0042] Furthermore, the energy consumption of the pure electric vehicle in each of the test scenarios is calculated using the following formula: Among them, EC DC Indicates the energy consumption of pure electric vehicles in the corresponding test scenario, ΔE REESS，DS It represents the power consumption of pure electric vehicles under corresponding driving conditions, and d represents the mileage of pure electric vehicles under corresponding driving conditions.

[0043] In order to facilitate understanding of the mileage calculation process of this step, the following is an explanation of calculating the mileage of a pure electric vehicle under commuting conditions and normal temperature conditions in this embodiment: First, the total power consumption of a pure electric vehicle in the test scenario is calculated using the following formula: E REESS,STP,DCTC,NT =ΔE REESS,DCTC，I +ΔE REESS,DCTC，2 +ΔE REESS,HSS Among them, E REESS,STP,DCTC，NT It represents the total power consumption of pure electric vehicles under commuting conditions and normal temperature conditions. REESS,DCTC，1 Indicates the power consumption of a pure electric vehicle in the first commuting mode, ΔE REESS,DCTC，2 represents the power consumption of the pure electric vehicle in the second commuting condition, ΔE REESS，HSS Indicates the amount of electricity consumed by a pure electric vehicle when traveling at the test speed.

[0044] Secondly, the energy consumption of pure electric vehicles in the test scenario is calculated using the following formula: Among them, EC DC，DCTC，NT It represents the energy consumption of a pure electric vehicle in the test scenario of commuting conditions and normal temperature conditions. d1 represents the mileage of a pure electric vehicle in the first commuting condition. D2 represents the mileage of a pure electric vehicle in the second commuting condition.

[0045] Finally, the following formula is used to calculate the driving range of pure electric vehicles in the test scenario: Among them, BER DCTC，NT It indicates the driving range of a pure electric vehicle under the test scenario of commuting conditions and normal temperature conditions.

[0046] It should be noted that the present invention has a total of six test scenarios based on the test scenario matrix. The calculation method of the driving range of pure electric vehicles in the remaining test scenarios can refer to the above-mentioned method of calculating the driving range of pure electric vehicles in the test scenario of commuting conditions and normal temperature conditions, which will not be repeated here.

[0047] The elements of the driving range matrix are the driving range of the pure electric vehicle in each test scenario. Specifically, the driving range matrix of this embodiment is shown in Table 2.

[0048] Table 2 Driving range matrix Among them, BER DCTC，LT BER represents the driving range of pure electric vehicles under commuting conditions and low temperature conditions. DCTC，HT BER represents the driving range of pure electric vehicles under commuting conditions and high temperature conditions. HSTC，NT Indicates the driving range of a pure electric vehicle under high-speed conditions and normal temperature conditions. HSTC，LT Indicates the driving range of a pure electric vehicle under high-speed and low-temperature conditions. BER HSTC，HT It indicates the driving range of a pure electric vehicle under the test scenario of high-speed and high-temperature conditions.

[0049] The embodiment of the present invention provides a multi-scenario pure electric vehicle driving range test method, which is based on the test scenario matrix to achieve multi-scenario pure electric vehicle driving range test, and by shortening the driving range test time of a single scenario, finally presents the expected driving range target of the pure electric vehicle in the form of a driving range matrix, which can more comprehensively and accurately evaluate the driving range of the pure electric vehicle. Moreover, the research and development of automobile energy-saving technology based on the present invention can verify that the reliability of the conclusion is higher.

[0050] Based on the above multi-scenario pure electric vehicle driving range test method, Figure 5 As shown, an embodiment of the present invention provides a multi-scenario pure electric vehicle driving range test system, comprising: A driving condition construction module 1 is used to construct a driving condition of a pure electric vehicle, wherein the driving condition includes a commuting condition and a high-speed condition; A temperature condition building module 2 is used to build a plurality of temperature conditions based on the user travel environment data, wherein the user travel environment data includes the user travel environment temperature, and the temperature conditions include normal temperature conditions, low temperature conditions and high temperature conditions; A scenario matrix construction module 3 is used to cross-combine driving conditions and temperature conditions to obtain a test scenario matrix, wherein the elements of the test scenario matrix are vehicle air conditioning setting strategies of the pure electric vehicle in each test scenario, and each test scenario includes corresponding driving conditions and temperature conditions; The driving range test module 4 is used to control the pure electric vehicle to perform a driving range test under each temperature condition, and obtain the test data of the pure electric vehicle under each test scenario, wherein the test data includes the power consumption and driving range of the pure electric vehicle; The calculation processing module 5 is used to calculate and process the test data to obtain the driving range matrix of the pure electric vehicle, wherein the elements of the driving range matrix are the driving range of the pure electric vehicle in each test scenario.

[0051] It should be noted that each module in the above-mentioned multi-scenario pure electric vehicle driving range test system can be fully or partially implemented by software, hardware and their combination. The above-mentioned modules can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory in the computer device in software form, so that the processor can call and execute the operations corresponding to the above modules. For the specific definition of a multi-scenario pure electric vehicle driving range test system, please refer to the definition of a multi-scenario pure electric vehicle driving range test method mentioned above. The two have the same functions and effects, which will not be repeated here.

[0052] like Figure 6 As shown, an embodiment of the present invention provides a vehicle, which may include: Memory 401 , processor 402 , and a computer program stored in the memory 401 and executable on the processor 402 .

[0053] When the processor 402 executes the program, the multi-scenario pure electric vehicle driving range testing method provided in the above embodiment is implemented.

[0054] Furthermore, the vehicle also includes: The communication interface 403 is used for communication between the memory 401 and the processor 402 .

[0055] The memory 401 is used to store computer programs that can be executed on the processor 402 .

[0056] The memory 401 may include a high-speed RAM (Random Access Memory) memory, and may also include a non-volatile memory, such as at least one disk memory.

[0057] If the memory 401, the processor 402 and the communication interface 403 are implemented independently, the communication interface 403, the memory 401 and the processor 402 can be connected to each other through a bus and communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0058] Optionally, in a specific implementation, if the memory 401, the processor 402 and the communication interface 403 are integrated on a chip, the memory 401, the processor 402 and the communication interface 403 can communicate with each other through an internal interface.

[0059] The processor 402 may be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present invention.

[0060] In summary, the embodiments of the present invention provide a multi-scenario pure electric vehicle driving range test method, system and vehicle, which realize the multi-scenario pure electric vehicle driving range test based on the test scenario matrix, and finally present the expected driving range target of the pure electric vehicle in the form of a driving range matrix by shortening the driving range test time of a single scenario, so as to more comprehensively and accurately evaluate the driving range of the pure electric vehicle. Moreover, the research and development of automobile energy-saving technology based on the present invention can verify that the reliability of the conclusion is higher.

[0061] Each embodiment in this specification is described in a progressive manner, and the same or similar parts of each embodiment can be directly referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. It should be noted that the technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-scenario pure electric vehicle driving range test method, characterized in that: include: Constructing a driving condition of a pure electric vehicle, wherein the driving condition includes a commuting condition and a high-speed condition; Constructing a plurality of temperature conditions based on the user travel environment data, wherein the user travel environment data includes the user travel environment temperature, and the temperature conditions include a normal temperature condition, a low temperature condition, and a high temperature condition; Cross-combining the driving conditions and the temperature conditions to obtain a test scenario matrix, wherein the elements of the test scenario matrix are vehicle air conditioning setting strategies of the pure electric vehicle in each test scenario, and each of the test scenarios includes corresponding driving conditions and temperature conditions; Controlling the pure electric vehicle to perform a driving range test under each of the temperature conditions to obtain test data of the pure electric vehicle under each of the test scenarios, wherein the test data includes power consumption and driving range of the pure electric vehicle; The test data is processed to obtain a driving range matrix of the pure electric vehicle, wherein the elements of the driving range matrix are the driving range of the pure electric vehicle in each of the test scenarios.

2. The multi-scenario pure electric vehicle driving range test method according to claim 1 is characterized in that: The controlling the pure electric vehicle to perform a driving range test under each of the temperature conditions to obtain test data of the pure electric vehicle under each of the test scenarios includes: Controlling the pure electric vehicle to perform a driving range test in a discharge cycle under the normal temperature condition according to a corresponding vehicle air conditioning setting strategy, and obtaining test data of each test scenario of the pure electric vehicle under the normal temperature condition, wherein the discharge cycle is when the pure electric vehicle is discharged from a fully charged state until it cannot reach a test vehicle speed; Controlling the pure electric vehicle to perform a driving range test within the discharge cycle under the low temperature condition according to a corresponding vehicle air conditioning setting strategy, and obtaining test data of each test scenario of the pure electric vehicle under the low temperature condition; The pure electric vehicle is controlled to perform a driving range test within the discharge cycle under the high temperature condition according to a corresponding vehicle air conditioning setting strategy, and test data of each test scenario of the pure electric vehicle under the high temperature condition is obtained.

3. The multi-scenario pure electric vehicle driving range test method according to claim 2 is characterized in that: The controlling the pure electric vehicle to perform a driving range test in a discharge cycle according to a corresponding vehicle air conditioning setting strategy under the normal temperature condition, and obtaining test data of each test scenario of the pure electric vehicle under the normal temperature condition, includes: Controlling the pure electric vehicle to execute a corresponding vehicle air conditioning setting strategy based on the normal temperature condition, wherein the vehicle air conditioning setting strategy includes turning off the air conditioner and the blower; Starting a discharge cycle, controlling the pure electric vehicle to continuously perform a plurality of commuting conditions and a plurality of high-speed conditions, and recording the power consumption and mileage of the pure electric vehicle in each of the commuting conditions, and the power consumption and mileage of the pure electric vehicle in each of the high-speed conditions; The pure electric vehicle is controlled to continue running at the test speed until the discharge cycle ends, and the power consumption of the pure electric vehicle when running at the test speed is recorded.

4. The multi-scenario pure electric vehicle driving range test method according to claim 2 is characterized in that: The controlling the pure electric vehicle to perform a driving range test within the discharge cycle according to a corresponding vehicle air conditioning setting strategy under the low temperature condition, and obtaining test data of each test scenario of the pure electric vehicle under the low temperature condition, includes: Based on the low temperature condition, the pure electric vehicle is controlled to execute a corresponding vehicle air conditioning setting strategy, wherein the vehicle air conditioning setting strategy includes turning on air conditioning heating so that the temperature inside the pure electric vehicle meets the normal temperature condition; Starting a discharge cycle, controlling the pure electric vehicle to continuously perform a plurality of commuting conditions and a plurality of high-speed conditions, and recording the power consumption and mileage of the pure electric vehicle in each of the commuting conditions, and the power consumption and mileage of the pure electric vehicle in each of the high-speed conditions; The pure electric vehicle is controlled to continue running at the test speed until the discharge cycle ends, and the power consumption of the pure electric vehicle when running at the test speed is recorded.

5. The multi-scenario pure electric vehicle driving range test method according to claim 2 is characterized in that: The controlling the pure electric vehicle to perform a driving range test within the discharge cycle according to a corresponding vehicle air conditioning setting strategy under the high temperature condition, and obtaining test data of each test scenario of the pure electric vehicle under the high temperature condition, includes: Based on the high temperature condition, the pure electric vehicle is controlled to execute a corresponding vehicle air conditioning setting strategy, wherein the vehicle air conditioning setting strategy includes turning on air conditioning refrigeration so that the temperature inside the pure electric vehicle meets the normal temperature condition; Starting a discharge cycle, controlling the pure electric vehicle to continuously perform a plurality of commuting conditions and a plurality of high-speed conditions, and recording the power consumption and mileage of the pure electric vehicle in each of the commuting conditions, and the power consumption and mileage of the pure electric vehicle in each of the high-speed conditions; The pure electric vehicle is controlled to continue running at the test speed until the discharge cycle ends, and the power consumption of the pure electric vehicle when running at the test speed is recorded.

6. The multi-scenario pure electric vehicle driving range test method according to claim 1, characterized in that: The processing of the test data to obtain the driving range matrix of the pure electric vehicle includes: The driving range of the pure electric vehicle in each of the test scenarios is calculated based on a preset formula, wherein the preset formula is as follows: Among them, BER represents the driving range of pure electric vehicles in the corresponding test scenarios, E REESS，STP Indicates the total power consumption of pure electric vehicles in the corresponding test scenario, EC DC Indicates the energy consumption of a pure electric vehicle in the corresponding test scenario.

7. The multi-scenario pure electric vehicle driving range test method according to claim 6 is characterized in that: The energy consumption of the pure electric vehicle in each of the test scenarios is calculated using the following formula: Among them, EC DC Indicates the energy consumption of pure electric vehicles in the corresponding test scenario, ΔE REESS，DS It represents the power consumption of pure electric vehicles under corresponding driving conditions, and d represents the mileage of pure electric vehicles under corresponding driving conditions.

8. The multi-scenario pure electric vehicle driving range test method according to claim 1 is characterized in that: The construction of the driving condition of the pure electric vehicle includes: The CLTC condition is characterized as a commuting condition, and the WLTC_EXH condition is characterized as a high-speed condition.

9. A multi-scenario pure electric vehicle driving range test system, characterized in that: include: A driving condition construction module, used to construct a driving condition of a pure electric vehicle, wherein the driving condition includes a commuting condition and a high-speed condition; A temperature condition building module, used to build a plurality of temperature conditions based on user travel environment data, wherein the user travel environment data includes the user travel environment temperature, and the temperature conditions include normal temperature conditions, low temperature conditions and high temperature conditions; A scenario matrix construction module, used for cross-combining the driving conditions and the temperature conditions to obtain a test scenario matrix, wherein the elements of the test scenario matrix are vehicle air conditioning setting strategies of the pure electric vehicle in each test scenario, and each of the test scenarios includes corresponding driving conditions and temperature conditions; A driving range test module, used to control the pure electric vehicle to perform a driving range test under each of the temperature conditions, and obtain test data of the pure electric vehicle under each of the test scenarios, wherein the test data includes the power consumption and driving range of the pure electric vehicle; The operation processing module is used to perform operation processing on the test data to obtain the driving range matrix of the pure electric vehicle, wherein the elements of the driving range matrix are the driving range of the pure electric vehicle in each of the test scenarios.

10. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the multi-scenario pure electric vehicle driving range test method as described in any one of claims 1 to 8.

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