A hybrid vehicle endurance mileage calculation method, system and hybrid vehicle

Abstract

The application discloses a hybrid vehicle endurance mileage calculation method and system and a hybrid vehicle, and relates to the technical field of vehicle endurance mileage calculation. The application comprises the following steps: obtaining an initial endurance mileage in a pure oil mode when a vehicle starts; judging a vehicle driving mode based on a current state of the vehicle; if the vehicle is in a hybrid mode, obtaining a mileage correction coefficient based on first oil quantity information and corresponding driving mileage, and determining a first mileage reduction value based on the mileage correction coefficient; if the vehicle is in an engine idling condition mode, obtaining a second mileage reduction value in the engine idling condition mode based on second oil quantity information and average fuel consumption information; obtaining a remaining endurance mileage based on the initial endurance mileage, the first mileage reduction value and the second mileage reduction value, and displaying the remaining endurance mileage. The application can accurately obtain a hybrid vehicle endurance display mileage value in combination with fuel consumption information of different conditions.

Description

Technical Field

[0001] The present application relates to the field of cruising range calculation, and in particular to a hybrid vehicle cruising range calculation method, system, and hybrid vehicle. Background Art

[0002] Range is a crucial parameter for car users. It intuitively displays the approximate distance a vehicle can travel given the current amount of fuel remaining. It plays a crucial role in trip planning, evaluating refueling timing, and the overall driving experience. This data not only affects travel convenience and peace of mind, but also directly influences user satisfaction with vehicle performance and energy efficiency.

[0003] For hybrid vehicles, the remaining range in pure fuel mode is usually calculated based on the current remaining fuel level in the tank and the vehicle's average fuel consumption over the vehicle's history. The average fuel consumption is estimated based on the vehicle's mileage and the total fuel consumed during this period. This value varies under different operating conditions. Therefore, the average fuel consumption estimate is often difficult to fully and accurately reflect the actual situation, which in turn leads to a certain deviation between the remaining range and the actual drivable distance.

[0004] Application Contents

[0005] The present application provides a hybrid vehicle range calculation method, system, and hybrid vehicle, so as to accurately obtain the hybrid vehicle range display mileage value by combining fuel consumption information of different working conditions.

[0006] In a first aspect, the present application provides a method for calculating the range of a hybrid vehicle, comprising:

[0007] Get the initial cruising range in pure fuel mode when the vehicle is started;

[0008] determining a driving mode of the vehicle based on a current state of the vehicle, and if the vehicle is in a hybrid mode, obtaining a mileage correction coefficient based on the first fuel level information and a corresponding mileage, and determining a first mileage reduction value based on the mileage correction coefficient;

[0009] If the vehicle is in the engine idle mode, obtaining a second mileage reduction value in the engine idle mode based on the second fuel level information and the average fuel consumption information;

[0010] Based on the initial cruising range, the first mileage reduction value and the second mileage reduction value, a remaining cruising range is obtained, and the remaining cruising range is displayed.

[0011] By obtaining the initial cruising range in pure fuel mode at vehicle startup, the present embodiment facilitates subsequent calculation of the remaining cruising range. By obtaining the first fuel level information and the corresponding mileage in the vehicle's hybrid mode, the mileage correction factor can be accurately obtained, ensuring accurate determination of the first mileage reduction value in the hybrid mode. By obtaining the second fuel level information in the engine idle mode, the second mileage reduction value in the engine idle mode can be accurately obtained. Based on the initial cruising range, the first mileage reduction value, and the second mileage reduction value, the remaining cruising range of the hybrid vehicle using pure fuel can be accurately determined based on the hybrid mode and the engine idle mode. Compared to the prior art, the present embodiment determines the vehicle's driving mode and obtains the corresponding fuel consumption. This allows the combination of fuel consumption information from different driving conditions to accurately determine the displayed mileage value for the hybrid vehicle.

[0012] Furthermore, before obtaining the initial cruising range in the pure fuel mode when the vehicle is started, the method further includes:

[0013] Determine whether the fuel level in the vehicle's fuel tank has increased;

[0014] If the fuel level in the fuel tank increases, the initial cruising range is determined based on the current fuel level information and the average fuel consumption information.

[0015] In this way, by obtaining the initial cruising range in pure fuel mode when the vehicle is started, the subsequent calculation of the remaining cruising range can be facilitated.

[0016] Furthermore, the mileage correction coefficient is obtained based on the first fuel level information and the corresponding mileage, specifically:

[0017] Obtaining a first fuel injection amount integral of the engine, and determining third fuel amount information based on the first fuel injection amount integral;

[0018] determining the first fuel quantity information based on the initial fuel quantity information, the third fuel quantity information, and a preset safety fuel quantity;

[0019] determining the corresponding mileage based on the first fuel level information;

[0020] A linear fit is performed on the first fuel level information and the mileage to obtain a mileage correction coefficient.

[0021] In this way, by obtaining the first fuel amount information and the corresponding mileage of the vehicle in the hybrid mode, the mileage correction coefficient can be accurately obtained, which can ensure that the first mileage reduction value in the hybrid mode is accurately obtained.

[0022] Furthermore, the determining of the corresponding mileage based on the first fuel level information is specifically as follows:

[0023] Obtaining a first theoretical cruising range based on the first fuel level information and the announced fuel consumption;

[0024] Obtaining a second theoretical cruising range based on the first fuel level information and the average fuel consumption information;

[0025] Determining a third theoretical cruising range based on the first theoretical cruising range and the second theoretical cruising range;

[0026] The driving mileage is obtained based on the initial cruising mileage and the third theoretical cruising mileage.

[0027] In this way, by combining the announced fuel consumption and the average fuel consumption information, the mileage correction coefficient can be accurately obtained, which can ensure that the first mileage reduction value in the hybrid mode is accurately obtained.

[0028] Furthermore, the calculation formula for determining the first mileage reduction value based on the mileage correction coefficient is specifically:

[0029] The first mileage reduction value=the driving mileage-the driving mileage*1KM*the mileage correction coefficient.

[0030] Furthermore, based on the second fuel quantity information and the average fuel consumption information, a second mileage reduction value in the engine idle mode is obtained, specifically:

[0031] obtaining a second fuel injection amount integral of the engine, and determining the second fuel amount information based on the second fuel injection amount integral;

[0032] If the second fuel quantity information meets a preset fuel consumption threshold, a linear fit is performed on the second fuel quantity information and the average fuel consumption information to obtain the second mileage reduction value.

[0033] In this way, by acquiring the second fuel quantity information under the engine idle operating mode, the second mileage reduction value under the engine idle operating mode can be accurately obtained.

[0034] Furthermore, the hybrid vehicle range calculation method further includes:

[0035] If the reduction in the initial cruising range meets a preset mileage threshold or the vehicle key is powered off, the remaining cruising range is updated.

[0036] In a second aspect, the present application further provides a hybrid vehicle range calculation system, comprising: an acquisition module, a first calculation module, a second calculation module, and a third calculation module;

[0037] The acquisition module is used to obtain the initial cruising range in the pure fuel mode when the vehicle is started;

[0038] The first calculation module is configured to determine a vehicle driving mode based on a current state of the vehicle, and if the vehicle is in a hybrid mode, obtain a mileage correction coefficient based on the first fuel level information and the corresponding mileage, and determine a first mileage reduction value based on the mileage correction coefficient;

[0039] The second calculation module is configured to obtain a second mileage reduction value in the engine idle operating mode based on the second fuel amount information and the average fuel consumption information if the vehicle is in the engine idle operating mode;

[0040] The third calculation module is used to obtain the remaining cruising range based on the initial cruising range, the first mileage reduction value and the second mileage reduction value, and display the remaining cruising range.

[0041] By obtaining the initial cruising range in pure fuel mode at vehicle startup, the present embodiment facilitates subsequent calculation of the remaining cruising range. By obtaining the first fuel level information and the corresponding mileage in the vehicle's hybrid mode, the mileage correction factor can be accurately obtained, ensuring accurate determination of the first mileage reduction value in the hybrid mode. By obtaining the second fuel level information in the engine idle mode, the second mileage reduction value in the engine idle mode can be accurately obtained. Based on the initial cruising range, the first mileage reduction value, and the second mileage reduction value, the remaining cruising range of the hybrid vehicle using pure fuel can be accurately determined based on the hybrid mode and the engine idle mode. Compared to the prior art, the present embodiment determines the vehicle's driving mode and obtains the corresponding fuel consumption. This allows the combination of fuel consumption information from different driving conditions to accurately determine the displayed mileage value for the hybrid vehicle.

[0042] On the third aspect, the present application also provides a hybrid vehicle, which uses the hybrid vehicle range calculation method described in the present application to calculate the range.

[0043] Furthermore, the hybrid vehicle includes an engine, a drive motor, a power battery pack, an engine controller connected to the engine, a motor controller connected to the drive motor, a battery management system connected to the power battery pack, and a vehicle controller, and the vehicle controller is connected to the engine controller, the motor controller, and the battery management system. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a flow chart of an embodiment of a hybrid vehicle range calculation method provided by the present application;

[0045] Figure 2 is a schematic diagram of linear fitting of the first fuel level information and mileage provided by the present application;

[0046] Figure 3is a schematic diagram of linear fitting of the second fuel quantity information and the average fuel consumption information provided by the present application;

[0047] Figure 4 This is a schematic structural diagram of an embodiment of a hybrid vehicle range system provided by the present application;

[0048] Figure 5 It is a structural schematic diagram of an embodiment of a hybrid vehicle provided by the present application. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0050] It should be understood that the step numbers used herein are only for convenience of description and are not intended to limit the order in which the steps are executed.

[0051] It should be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0052] The terms “include” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0053] The term "and / or" refers to and includes any and all possible combinations of one or more of the associated listed items.

[0054] Range is a crucial parameter for users when driving a car. It directly reflects the distance a vehicle can travel on the remaining fuel level and has a crucial impact on trip planning, refueling timing, and the driving experience. The remaining range of a hybrid vehicle in pure fuel mode is estimated based on the remaining fuel level and average fuel consumption. The average fuel consumption estimate, calculated based on mileage and fuel consumption, varies across different driving conditions, making it difficult to fully and accurately reflect the actual situation. This can lead to a certain deviation between the remaining range and the actual drivable distance.

[0055] Next, the nouns involved in this application are analyzed:

[0056] A hybrid vehicle (HEV) is a vehicle whose propulsion system consists of two or more simultaneously operating propulsion systems. Simply put, it is a vehicle with two or more power sources, also known as a composite vehicle. Its power sources include traditional internal combustion engines as well as new energy systems such as electric motors, batteries, fuel cells, and solar cells. The operating principle is that, depending on the actual driving state, the individual propulsion systems independently or in combination provide the vehicle's driving power.

[0057] Hybrid mode is a vehicle driving mode that combines two or more energy types (such as an internal combustion engine, a battery-powered electric motor, or other renewable energy sources). In hybrid mode, the vehicle's driving performance and fuel economy can be optimized, thereby reducing fuel consumption and emissions.

[0058] Engine idle mode is a vehicle operating state in which the engine runs at no load or low load, maintaining its lowest stable speed and no power output. Idle mode is primarily used to power the vehicle's electrical devices and keep the engine running.

[0059] Based on this, the embodiments of the present application provide a hybrid vehicle range calculation method, system, and hybrid vehicle, which can accurately obtain the hybrid vehicle range display mileage value by combining fuel consumption information under different working conditions.

[0060] The embodiments of the present application provide a hybrid vehicle range calculation method, system, and hybrid vehicle, which are specifically illustrated through the following embodiments. First, the hybrid vehicle range calculation method in the embodiments of the present application is described.

[0061] The hybrid vehicle range calculation method provided in the embodiment of the present application relates to the field of range calculation. The hybrid vehicle range calculation method provided in the embodiment of the present application can be applied in a terminal, can be applied in a server side, or can be software running in a terminal or a server side. In some embodiments, the terminal can be a smart phone, a tablet computer, a laptop computer, a desktop computer, etc.; the server side can be configured as an independent physical server, or as a server cluster or distributed system composed of multiple physical servers, or as a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms; the software can be an application that implements a hybrid vehicle range calculation method, etc., but is not limited to the above forms.

[0062] The present application can also be used in numerous general or special computer system environments or configurations. For example: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments including any of the above systems or devices, and the like. The present application can be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, and the like that perform specific tasks or implement specific abstract data types. The present application can also be practiced in distributed computing environments in which tasks are performed by remote processing devices connected via a communication network. In a distributed computing environment, program modules can be located in local and remote computer storage media including storage devices.

[0063] Example 1

[0064] Please refer to Figure 1 , Figure 1 This is a flow chart of an embodiment of a hybrid vehicle range calculation method provided by the present application, including steps S101 to S104;

[0065] Step S101, obtaining the initial cruising range in pure fuel mode when the vehicle is started;

[0066] It is understandable that when the vehicle is started, the initial cruising range saved at the time of power-off is read from the storage or memory. Each time the vehicle is powered off, the current cruising range information is saved in the storage or memory for reading when the vehicle is powered on.

[0067] It's understood that when a vehicle triggers refueling, the initial cruising range is the range displayed after refueling. The initial cruising range is determined by determining whether the vehicle's fuel tank level has increased. If so, the initial cruising range is determined based on the current fuel level information and the average fuel consumption information. Specifically, the fuel tank is first detected by a sensor. If the fuel level in the tank is determined to be increasing, the current fuel level information after refueling is obtained. The cruising range is calculated based on the current fuel level information and the vehicle's average fuel consumption, and the cruising range is displayed to the driver as the initial cruising range.

[0068] It should be noted that the average fuel consumption is calculated based on the fuel consumption and mileage during a preset time period. The calculation formula is: Average fuel consumption = Fuel consumption (liters) ÷ Mileage (km) × 100. After the average fuel consumption is calculated, it is stored in the memory or storage so that the mileage can be updated after refueling.

[0069] In this way, by obtaining the initial cruising range in pure fuel mode when the vehicle is started, the subsequent calculation of the remaining cruising range can be facilitated.

[0070] Step S102 , determining a vehicle driving mode based on the current state of the vehicle. If the vehicle is in a hybrid mode, obtaining a mileage correction coefficient based on the first fuel level information and the corresponding mileage, and determining a first mileage reduction value based on the mileage correction coefficient.

[0071] It can be understood that the current status of the vehicle can be obtained by observing the dashboard, monitoring the engine sound and feeling the vehicle vibration. Among them, the vehicle's hybrid mode indicator light, power flow and engine speed on the dashboard can be observed to determine the vehicle's driving mode.

[0072] In some embodiments, by judging the hybrid mode indicator light on the vehicle dashboard and the flow of power flow, it is possible to intuitively determine whether the current vehicle state is in hybrid mode or engine idle mode.

[0073] In some embodiments, it is necessary to monitor whether the engine has been started through an engine speed sensor or other related sensors, and then set a speed threshold to determine the vehicle driving mode. When the vehicle speed is greater than the preset speed threshold, it means that it is not in a low-speed or idle condition, and the vehicle's driving mode is determined to be a hybrid mode. When the vehicle speed is less than the preset threshold and there is no additional power demand (such as acceleration and climbing, etc.), it is determined that the vehicle is in the engine idle mode.

[0074] It should be noted that if the vehicle is running in pure electric mode, the pure oil range will remain unchanged.

[0075] It is understandable that if the vehicle is in hybrid mode, it is necessary to obtain the first fuel injection quantity integral of the engine and determine the third fuel quantity information based on the first fuel injection quantity integral; determine the first fuel quantity information based on the initial fuel quantity information, the third fuel quantity information and the preset safety fuel quantity; determine the corresponding mileage based on the first fuel quantity information; perform linear fitting on the first fuel quantity information and the mileage to obtain a mileage correction coefficient. Specifically, first, the amount of fuel injected each time is obtained through the engine control unit (ECU), and the first fuel injection amount integral of the preset time period is calculated by integral accumulation, and the first fuel injection amount integral is multiplied by the conversion coefficient to obtain the actual third fuel amount information, wherein the conversion coefficient is determined based on factors such as fuel density and injection efficiency; secondly, the initial fuel amount information of the vehicle is obtained, and the first fuel amount information is determined by the formula of initial fuel amount information - third fuel amount information - preset safety fuel amount = first fuel amount information, wherein the first fuel amount information is the remaining available fuel amount; thirdly, the mileage is obtained by calculating the first fuel amount information with the announced fuel consumption or the average fuel consumption; finally, the first fuel amount information and the mileage are linearly fitted to obtain the linear relationship between the two variables, that is, the mileage correction coefficient, wherein the schematic diagram of the linear fitting of the first fuel amount information and the mileage is shown as follows Figure 2 shown.

[0076] It should be noted that the terms "first," "second," or "third" do not indicate a specific order; they simply distinguish between terms with different origins but the same meaning. These terms can be understood as names. The first fuel level information represents the remaining available fuel level when the vehicle is in hybrid mode, the second fuel level information represents the remaining available fuel level when the vehicle is in engine idle mode, and the third fuel level information represents the actual fuel consumption of the vehicle in hybrid mode.

[0077] It should be noted that the preset safety oil volume is the unusable oil volume in the tank and can be freely set according to actual needs.

[0078] In some embodiments, based on the first fuel quantity information, the corresponding mileage is determined, including: obtaining a first theoretical cruising range based on the first fuel quantity information and the announced fuel consumption; obtaining a second theoretical cruising range based on the first fuel quantity information and the average fuel consumption information; determining a third theoretical cruising range based on the first theoretical cruising range and the second theoretical cruising range; and obtaining the mileage based on the initial cruising range and the third theoretical cruising range. Specifically, first, the announced fuel consumption is obtained from the information disclosed by the vehicle manufacturer, and the first theoretical cruising range is calculated by dividing the first fuel quantity information (in L) by the announced fuel consumption (in L / 100km), and then multiplying by 100 (converting the fuel consumption unit to kilometers / liter); secondly, the second theoretical cruising range is calculated by dividing the first fuel quantity information (in L) by the average fuel consumption information (in L / 100km), and then multiplying by 100 (converting the fuel consumption unit to kilometers / liter); then, the first theoretical cruising range and the second theoretical cruising range are compared, and the smaller value is determined as the third theoretical cruising range; finally, the initial cruising range on the vehicle dashboard is subtracted from the third theoretical cruising range to obtain the mileage.

[0079] In this way, by combining the announced fuel consumption and the average fuel consumption information, the mileage correction coefficient can be accurately obtained, which can ensure that the first mileage reduction value in the hybrid mode is accurately obtained.

[0080] In some embodiments, linear fitting of the first fuel quantity information and the driving mileage includes: dividing the remaining fuel quantity from 0% to 97% into 15 parts, and dividing the difference in cruising range from -490 to +490 into 15 parts, where there are 10 parts with positive deviation, 4 parts with negative deviation, and 1 part with zero deviation. The range of negative deviation is: from -490 to -98 (a total of 4 parts, with an interval of an integer multiple of 4 - 490 - (-98) = -98), the range of zero deviation is: 1 part (the driving mileage is equal to 0), and the range of positive deviation is: from 98 to 490 (a total of 10 parts, with an interval of an integer multiple of 10 490 - 98 = 39.2, which can be rounded to the nearest integer or a reasonable decimal for convenience). According to the given principle, a correction coefficient can be assigned to each combination of fuel quantity percentage and difference in cruising range. (1) When there is a positive deviation (the actual fuel consumption is greater than the announced fuel consumption): the mileage correction coefficient starts from 1 and increases as the positive deviation increases, with a maximum of 4. The lower the fuel quantity, the faster the first mileage reduction value needs to be corrected closer to the driving mileage, and the faster the mileage correction coefficient increases (i.e., the speed at which the mileage correction coefficient increases accelerates as the fuel quantity decreases). (2) When there is a negative deviation (the actual fuel consumption is less than the announced fuel consumption): the mileage correction coefficient starts from 1 and decreases as the negative deviation increases, with a minimum of 0.25. When the fuel quantity is lower, the faster the first mileage reduction value needs to be corrected closer to the driving mileage, and the faster the mileage correction coefficient decreases (i.e., the speed at which the mileage correction coefficient decreases accelerates as the fuel quantity decreases). (3) When there is a zero deviation: the mileage correction coefficient is 1 (no correction is required). Therefore, based on the linear fitting, the mileage correction coefficient odo_fac is obtained, and the value range of odo_fac is 0.25 < odo_fac < 4, that is, for every 1 km of actual driving mileage, the updated displayed mileage decreases by at least 0.25 km and at most 4 km.

[0081] It can be understood that after obtaining the mileage correction coefficient odo_fac, it is necessary to determine the first mileage reduction value based on the mileage correction coefficient, and its calculation formula is: the first mileage reduction value = the driving mileage - the driving mileage * 1KM * the mileage correction coefficient.

[0082] Step S103, if the vehicle is in the engine idle condition mode, then based on the second fuel quantity information and the average fuel consumption information, obtain the second mileage reduction value in the engine idle condition mode;

[0083] It can be understood that if the vehicle is in the engine idle mode, it is necessary to determine the second mileage reduction value under this condition, including: obtaining the second fuel injection amount integral of the engine, and determining the second fuel amount information based on the second fuel injection amount integral; if the second fuel amount information meets the preset fuel consumption threshold, then linearly fitting the second fuel amount information and the average fuel consumption information to obtain the second mileage reduction value. Specifically, first, the vehicle's fuel injection amount is obtained each time through the engine control unit (ECU), and the second fuel injection amount integral for the preset time period is calculated by integral accumulation, and the second fuel injection amount integral is multiplied by the conversion coefficient to obtain the actual second fuel amount information, wherein the conversion coefficient is determined based on factors such as fuel density and injection efficiency; secondly, it is determined whether the second fuel amount information satisfies the preset fuel consumption threshold. If the preset threshold is met, the second fuel amount information and the average fuel consumption information are linearly fitted to obtain a linear relationship between the two variables, and then the second mileage reduction value is determined; wherein, the schematic diagram of the linear fitting of the second fuel amount information and the average fuel consumption information is shown as follows. Figure 3 shown.

[0084] In some embodiments, when the second fuel quantity information satisfies the preset fuel consumption threshold, the fourth theoretical cruising range can be calculated based on the announced fuel consumption and the second fuel quantity information, and the remaining cruising range can be updated, that is, the second mileage reduction value under the engine idle mode is calculated. For example, when the announced fuel consumption is 5L / 100km, when the fuel quantity is reduced by 0.025L, the fourth theoretical cruising range is 0.5km (20km / L*0.025L=0.5km).

[0085] In some embodiments, a linear fit is performed on the second fuel quantity information and the average fuel consumption information, including: dividing the remaining fuel quantity from 0% to 97% into 15 parts evenly, and dividing the average fuel consumption from 1L / 100km to 15L / 100km into 15 parts evenly, and then, based on the fourth theoretical cruising range calculated by the announced fuel consumption and the second fuel quantity information, when the average fuel consumption is higher than the announced fuel consumption, the second mileage reduction value should be less than the fourth theoretical cruising range, and as the average fuel consumption increases, the second mileage reduction value should gradually decrease; when the average fuel consumption is lower than the announced fuel consumption, the second mileage reduction value should be greater than the fourth theoretical cruising range, and as the average fuel consumption decreases, the second mileage reduction value should gradually increase; when the second fuel quantity information is higher, the allowed idle time is longer, so the second mileage reduction value is closer to the fourth theoretical cruising range; when the second fuel quantity information is lower, the allowed idle time is shorter, so the second mileage reduction value should decrease faster to reflect the rapid consumption of fuel. Based on the above relationship, an adjustment factor is determined to control the influence of the average fuel consumption on the second mileage reduction value, that is, the second mileage reduction value = the fourth theoretical cruising range × the adjustment factor.

[0086] In this way, by acquiring the second fuel quantity information under the engine idle operating mode, the second mileage reduction value under the engine idle operating mode can be accurately obtained.

[0087] Step S104: obtaining a remaining cruising range based on the initial cruising range, the first mileage reduction value, and the second mileage reduction value, and displaying the remaining cruising range.

[0088] It is understandable that since the remaining cruising range can only decrease and not increase, the remaining cruising range can be obtained through the calculation formula of remaining cruising range = initial cruising range - first mileage reduction value - second mileage reduction value, and the remaining cruising range can be displayed on the instrument panel.

[0089] In some embodiments, the hybrid vehicle range calculation method further includes updating the remaining range if the reduction in the initial range meets a preset range threshold or the vehicle key is powered off. Specifically, when the reduction in the initial range exceeds the preset threshold, meaning the vehicle has traveled more than the preset range threshold, the remaining range is updated and displayed to the driver, allowing the driver to plan driving or refueling based on the remaining range. When the vehicle key is powered off, indicating the travel is complete, the remaining range is stored so that the driver can directly access the current remaining range the next time the vehicle is driven.

[0090] It should be noted that the preset mileage threshold can be set freely and is not limited in this application.

[0091] By obtaining the initial cruising range in pure fuel mode at vehicle startup, the present embodiment facilitates subsequent calculation of the remaining cruising range. By obtaining the first fuel level information and the corresponding mileage in the vehicle's hybrid mode, the mileage correction factor can be accurately obtained, ensuring accurate determination of the first mileage reduction value in the hybrid mode. By obtaining the second fuel level information in the engine idle mode, the second mileage reduction value in the engine idle mode can be accurately obtained. Based on the initial cruising range, the first mileage reduction value, and the second mileage reduction value, the remaining cruising range of the hybrid vehicle using pure fuel can be accurately determined based on the hybrid mode and the engine idle mode. Compared to the prior art, the present embodiment determines the vehicle's driving mode and obtains the corresponding fuel consumption. This allows the combination of fuel consumption information from different driving conditions to accurately determine the displayed mileage value for the hybrid vehicle.

[0092] Example 2

[0093] Please refer to Figure 4 , Figure 41 is a schematic structural diagram of an embodiment of a hybrid vehicle range system provided in the present application, comprising: an acquisition module 100, a first calculation module 200, a second calculation module 300, and a third calculation module 400;

[0094] The acquisition module 100 is used to obtain the initial cruising range in the pure fuel mode when the vehicle is started;

[0095] The first calculation module 200 is configured to determine a vehicle driving mode based on a current state of the vehicle. If the vehicle is in a hybrid mode, the first calculation module 200 is configured to obtain a mileage correction factor based on the first fuel level information and the corresponding mileage, and to determine a first mileage reduction value based on the mileage correction factor.

[0096] The second calculation module 300 is configured to obtain a second mileage reduction value in the engine idle mode based on the second fuel amount information and the average fuel consumption information if the vehicle is in the engine idle mode;

[0097] The third calculation module 400 is configured to obtain a remaining cruising range based on the initial cruising range, the first mileage reduction value, and the second mileage reduction value, and to display the remaining cruising range.

[0098] The information interaction, execution process, and other contents between the modules within the above-mentioned hybrid vehicle range calculation system are based on the same concept as the embodiment of the hybrid vehicle range calculation method of the first aspect of the present invention, and the technical effects achieved are basically the same. For specific contents, please refer to the description of the first embodiment of the method of the present invention and will not be repeated here.

[0099] Example 3

[0100] Please refer to Figure 5 , Figure 5 This is a structural diagram of a hybrid vehicle provided in the present application, including calculating the driving range using the hybrid vehicle driving range calculation method described in Example 1 of the present application.

[0101] It can be understood that the hybrid vehicle comprises an engine (1), a drive motor (2), a power battery pack (3), an engine controller (4) connected to the engine (1), a motor controller (5) connected to the drive motor (2), a battery management system (6) connected to the power battery pack (3), and a vehicle controller (7), wherein the vehicle controller (7) is connected to the engine controller (4), the motor controller (5), and the battery management system (6).

[0102] The apparatus embodiments described above are merely illustrative, wherein the modules described as separate components may or may not be physically separate, i.e., they may be located in one location or distributed across multiple network elements. Some or all of these elements may be selected based on actual needs to achieve the objectives of the methods of this embodiment.

[0103] Those skilled in the art will appreciate that all or part of the processes in the above-described method embodiments can be implemented by instructing related hardware through a computer program. The program can be stored in a computer-monitorable storage medium, and when executed, the program can include the processes in the above-described method embodiments. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

[0104] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the scope of protection of the present application.

[0105] It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A method for calculating the cruising range of a hybrid vehicle, characterized in that: include: Get the initial cruising range in pure fuel mode when the vehicle is started; determining a driving mode of the vehicle based on a current state of the vehicle, and if the vehicle is in a hybrid mode, obtaining a mileage correction coefficient based on the first fuel level information and a corresponding mileage, and determining a first mileage reduction value based on the mileage correction coefficient; If the vehicle is in the engine idle mode, obtaining a second mileage reduction value in the engine idle mode based on the second fuel level information and the average fuel consumption information; Obtaining a remaining cruising range based on the initial cruising range, the first mileage reduction value, and the second mileage reduction value, and displaying the remaining cruising range; The mileage correction coefficient is obtained based on the first fuel quantity information and the corresponding mileage, specifically by: obtaining a first fuel injection quantity integral of the engine, and determining the third fuel quantity information based on the first fuel injection quantity integral; determining the first fuel quantity information based on the initial fuel quantity information, the third fuel quantity information, and a preset safety fuel quantity; Based on the first fuel quantity information, the corresponding mileage is determined; and a linear fit is performed on the first fuel quantity information and the mileage to obtain a mileage correction coefficient.

2. The hybrid vehicle range calculation method according to claim 1, characterized in that: Before obtaining the initial cruising range in the pure fuel mode when the vehicle is started, the method further includes: Determine whether the fuel level in the vehicle's fuel tank has increased; If the fuel level in the fuel tank increases, the initial cruising range is determined based on the current fuel level information and the average fuel consumption information.

3. The hybrid vehicle range calculation method according to claim 1, characterized in that: The determining of the corresponding mileage based on the first fuel level information is specifically as follows: Obtaining a first theoretical cruising range based on the first fuel level information and the announced fuel consumption; Obtaining a second theoretical cruising range based on the first fuel level information and the average fuel consumption information; Determining a third theoretical cruising range based on the first theoretical cruising range and the second theoretical cruising range; The driving mileage is obtained based on the initial cruising mileage and the third theoretical cruising mileage.

4. The hybrid vehicle range calculation method according to claim 3, characterized in that: The calculation formula for determining the first mileage reduction value based on the mileage correction coefficient is specifically: The first mileage reduction value=the driving mileage-the driving mileage*1KM*the mileage correction coefficient.

5. The hybrid vehicle range calculation method according to claim 1, characterized in that: The second mileage reduction value in the engine idle mode is obtained based on the second fuel amount information and the average fuel consumption information, specifically: obtaining a second fuel injection amount integral of the engine, and determining the second fuel amount information based on the second fuel injection amount integral; If the second fuel quantity information meets a preset fuel consumption threshold, a linear fit is performed on the second fuel quantity information and the average fuel consumption information to obtain the second mileage reduction value.

6. The hybrid vehicle range calculation method according to claim 1, characterized in that: Also includes: If the reduction in the initial cruising range meets a preset mileage threshold or the vehicle key is powered off, the remaining cruising range is updated.

7. A hybrid vehicle range calculation system, characterized in that: include: an acquisition module, a first calculation module, a second calculation module, and a third calculation module; The acquisition module is used to obtain the initial cruising range in the pure fuel mode when the vehicle is started; The first calculation module is configured to determine a vehicle driving mode based on a current state of the vehicle, and if the vehicle is in a hybrid mode, obtain a mileage correction coefficient based on the first fuel level information and the corresponding mileage, and determine a first mileage reduction value based on the mileage correction coefficient; The second calculation module is configured to obtain a second mileage reduction value in the engine idle operating mode based on the second fuel amount information and the average fuel consumption information if the vehicle is in the engine idle operating mode; The third calculation module is configured to obtain a remaining cruising range based on the initial cruising range, the first mileage reduction value, and the second mileage reduction value, and to display the remaining cruising range; The mileage correction coefficient is obtained based on the first fuel quantity information and the corresponding mileage, specifically by: obtaining a first fuel injection quantity integral of the engine, and determining the third fuel quantity information based on the first fuel injection quantity integral; determining the first fuel quantity information based on the initial fuel quantity information, the third fuel quantity information, and a preset safety fuel quantity; Based on the first fuel quantity information, the corresponding mileage is determined; and a linear fit is performed on the first fuel quantity information and the mileage to obtain a mileage correction coefficient.

8. A hybrid vehicle, characterized in that: The driving range is calculated using the hybrid vehicle driving range calculation method according to any one of claims 1 to 6.

9. The hybrid vehicle according to claim 8, characterized in that: The hybrid vehicle includes an engine, a drive motor, a power battery pack, an engine controller connected to the engine, a motor controller connected to the drive motor, a battery management system connected to the power battery pack, and a vehicle controller. The vehicle controller is connected to the engine controller, the motor controller, and the battery management system.

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