A method, device, and vehicle for determining the fuel-powered driving range of a hybrid vehicle.

Abstract

The application discloses a kind of hybrid vehicle fuel endurance mileage determination method, device and vehicle, the method comprises: in the operation of vehicle, the operating state of vehicle, first average fuel consumption and second average fuel consumption are obtained, wherein, operating state includes residual oil quantity, vehicle speed and driving mode, first average fuel consumption is the average fuel consumption consumed by vehicle driving first preset mileage, second average fuel consumption is the average fuel consumption consumed by vehicle driving second preset mileage, the length of second preset mileage is greater than the length of first preset mileage;Based on operating state, first average fuel consumption and second average fuel consumption, the comprehensive fuel consumption of vehicle is determined;Based on comprehensive fuel consumption and residual oil quantity, the endurance mileage of vehicle is determined.The method considers the average fuel consumption of long mileage and short mileage of vehicle, analyzes more accurate comprehensive fuel consumption, to more accurately predict the fuel endurance mileage of hybrid vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a method, apparatus, and vehicle for determining the fuel range of a hybrid vehicle. Background Technology

[0002] With increasing environmental awareness and adjustments to the social energy structure, hybrid vehicles are gaining popularity as a means of transportation that achieves energy conservation and emission reduction. However, calculating the driving range of hybrid vehicles has always been a technical challenge in the industry. Traditional calculation methods often fail to accurately reflect the actual driving range of vehicles under different operating conditions, causing confusion for consumers.

[0003] Current fuel consumption algorithms are quite complex. They estimate engine operating conditions based on road condition information of the intended route for a hybrid electric vehicle (HEV), thus estimating the vehicle's initial fuel consumption. A second fuel consumption is then calculated by weighting the initial fuel consumption with historical fuel consumption data. However, the accuracy of the estimated initial fuel consumption cannot be guaranteed, leading to a significant discrepancy between the second and actual fuel consumption, resulting in inaccurate range calculations. Therefore, developing a more scientific and accurate method for calculating the fuel range of hybrid vehicles is crucial. Summary of the Invention

[0004] This application provides a method, apparatus, and vehicle for determining the fuel range of a hybrid vehicle. By considering the average fuel consumption over long and short distances, a more accurate comprehensive fuel consumption is analyzed, thereby more accurately predicting the fuel range of the hybrid vehicle.

[0005] In a first aspect, the present invention provides the following technical solution through an embodiment of the present invention:

[0006] A method for determining the fuel-efficient driving range of a hybrid vehicle includes: during vehicle operation, acquiring the vehicle's operating status, a first average fuel consumption, and a second average fuel consumption, wherein the operating status includes remaining fuel, vehicle speed, and driving mode; the first average fuel consumption is the average fuel consumption consumed when the vehicle travels a first preset mileage; the second average fuel consumption is the average fuel consumption consumed when the vehicle travels a second preset mileage; the length of the second preset mileage is greater than the length of the first preset mileage; determining the vehicle's comprehensive fuel consumption based on the operating status, the first average fuel consumption, and the second average fuel consumption; and determining the vehicle's driving range based on the comprehensive fuel consumption and the remaining fuel.

[0007] Preferably, determining the vehicle's overall fuel consumption based on the operating state, the first average fuel consumption, and the second average fuel consumption includes: determining a weighting factor based on the remaining fuel, determining a vehicle speed correction coefficient based on the vehicle speed, and determining a driving mode correction coefficient based on the driving mode; weighting the first average fuel consumption, the second average fuel consumption, and the weighting factor, and then multiplying the result by the vehicle speed correction coefficient and the driving mode correction coefficient to determine the vehicle's overall fuel consumption.

[0008] Preferably, the first average fuel consumption and the second average fuel consumption are obtained through the following steps: In each sampling period, a first unit distance, a second unit distance, a first unit fuel consumption, and a second unit fuel consumption are determined, wherein the first unit distance is the distance traveled per unit time during the first preset mileage, the second unit distance is the distance traveled per unit time during the second preset mileage, the first unit fuel consumption is the fuel consumption per unit time during the first preset mileage, and the second unit fuel consumption is the fuel consumption per unit time during the second preset mileage; based on the first unit distance, the first unit fuel consumption, the first average fuel consumption of the previous sampling period, and the first preset mileage, the first average fuel consumption consumed by the vehicle during the first preset mileage is determined, and based on the second unit distance, the second unit fuel consumption, the second average fuel consumption of the previous sampling period, and the second preset mileage, the second average fuel consumption consumed by the vehicle during the second preset mileage is determined.

[0009] Preferably, determining the first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption includes: obtaining the total driving time, the total driving distance, and the total fuel consumption of the vehicle; obtaining the total driving time, the total driving distance, and the total fuel consumption of the vehicle; if the total driving distance is less than or equal to the first preset mileage, then determining the first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption of the vehicle based on the total driving time, the total driving distance, and the total fuel consumption.

[0010] Preferably, determining the first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption includes: obtaining the vehicle's total driving time, total driving distance, and total fuel consumption; if the total driving distance is greater than the first preset mileage and less than or equal to the second preset mileage, then obtaining the first total driving time required for the latest first preset mileage traveled by the vehicle, the first total fuel consumption required for the latest first preset mileage traveled by the vehicle, the vehicle's total driving time, the total driving distance, and the total fuel consumption; determining the vehicle's first unit distance and first unit fuel consumption based on the first total driving time, the first total fuel consumption, and the first preset mileage; and determining the vehicle's second unit distance and second unit fuel consumption based on the total driving time, the total driving distance, and the total fuel consumption.

[0011] Preferably, determining the first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption includes: if the total driving distance is greater than the second preset mileage, obtaining the first total time required for the vehicle to travel the latest first preset mileage, the first total fuel consumption required for the latest first preset mileage, the second total time required for the latest second preset mileage, and the second total fuel consumption required for the latest second preset mileage; determining the first unit distance and the first unit fuel consumption of the vehicle based on the first total time, the first total fuel consumption, and the first preset mileage; and determining the second unit distance and the second unit fuel consumption of the vehicle based on the second total time, the second total fuel consumption, and the second preset mileage.

[0012] Preferably, obtaining the remaining fuel level of the vehicle includes: obtaining the liquid level resistance signal of the vehicle's fuel tank and the vehicle's slope signal; determining the corrected resistance value by looking up the liquid level resistance signal and the slope signal in a preset first correspondence table; and determining the remaining fuel level of the vehicle based on the corrected resistance value. The preset first correspondence table includes different resistance values ​​and the corresponding corrected resistance values ​​under different slope values.

[0013] Preferably, after determining the vehicle's driving range, the method further includes: determining the fuel percentage based on the remaining fuel, and determining a filtering coefficient by looking up a preset first correspondence table according to the fuel percentage, wherein the preset first correspondence table includes the correspondence between the fuel percentage and the filtering coefficient; correcting the driving range according to the filtering coefficient, and displaying the corrected driving range in the vehicle's odometer.

[0014] Secondly, through an embodiment of the present invention, the present invention provides the following technical solution:

[0015] A device for determining the fuel-powered driving range of a hybrid vehicle, comprising:

[0016] The acquisition module is used to acquire the vehicle's operating status, first average fuel consumption, and second average fuel consumption during vehicle operation. The operating status includes remaining fuel, vehicle speed, and driving mode. The first average fuel consumption is the average fuel consumption consumed when the vehicle travels a first preset mileage. The second average fuel consumption is the average fuel consumption consumed when the vehicle travels a second preset mileage. The length of the second preset mileage is greater than the length of the first preset mileage.

[0017] The comprehensive fuel consumption determination module is used to determine the comprehensive fuel consumption of the vehicle based on the operating status, the first average fuel consumption, and the second average fuel consumption.

[0018] The driving range determination module is used to determine the driving range of the vehicle based on the combined fuel consumption and the remaining fuel.

[0019] Thirdly, through one embodiment of the present invention, the following technical solution is provided:

[0020] A vehicle includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the steps of the method described in any of the first aspects above.

[0021] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0022] The method for determining the fuel-efficient driving range of a hybrid vehicle provided in this invention determines the vehicle's comprehensive fuel consumption based on the operating state, a first average fuel consumption over a first preset mileage, and a second average fuel consumption over a second preset mileage. By separately calculating the first average fuel consumption over the first preset mileage and the second average fuel consumption over the second preset mileage, and then obtaining the comprehensive fuel consumption based on different remaining fuel levels, the theoretical driving range is more closely approximated to the vehicle's expected driving range. This method comprehensively considers multiple factors such as the vehicle's remaining fuel level and comprehensive fuel consumption, accurately determining the vehicle's fuel efficiency under different driving conditions, and more accurately predicting the hybrid vehicle's fuel-efficient driving range. This achieves a more scientific and accurate calculation of the hybrid vehicle's fuel-efficient driving range, improving driving safety and user experience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a flowchart of the method for determining the fuel range of a hybrid vehicle in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the device for determining the fuel range of a hybrid vehicle in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the vehicle structure in an embodiment of the present invention. Detailed Implementation

[0027] This application provides a method, apparatus, and vehicle for determining the fuel range of a hybrid vehicle. By considering the average fuel consumption over long and short distances, a more accurate comprehensive fuel consumption is analyzed, thereby more accurately predicting the fuel range of the hybrid vehicle.

[0028] The technical solution of this application embodiment is to solve the above-mentioned technical problems, and the general idea is as follows:

[0029] A method for determining the fuel-efficient driving range of a hybrid vehicle includes: acquiring the vehicle's operating status, a first average fuel consumption, and a second average fuel consumption during vehicle operation, wherein the operating status includes remaining fuel, vehicle speed, and driving mode; the first average fuel consumption is the average fuel consumption consumed when the vehicle travels a first preset mileage; the second average fuel consumption is the average fuel consumption consumed when the vehicle travels a second preset mileage; the length of the second preset mileage is greater than the length of the first preset mileage; determining the vehicle's comprehensive fuel consumption based on the operating status, the first average fuel consumption, and the second average fuel consumption; and determining the vehicle's driving range based on the comprehensive fuel consumption and the remaining fuel.

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] Firstly, the present invention provides a method for determining the fuel range of a hybrid vehicle, specifically, as follows: Figure 1 As shown, the method includes the following steps S101 to S103:

[0032] Step S101: During vehicle operation, obtain the vehicle's operating status, first average fuel consumption, and second average fuel consumption. The operating status includes remaining fuel, vehicle speed, and driving mode. The first average fuel consumption is the average fuel consumption consumed when the vehicle travels a first preset mileage. The second average fuel consumption is the average fuel consumption consumed when the vehicle travels a second preset mileage. The length of the second preset mileage is greater than the length of the first preset mileage.

[0033] In a specific embodiment, the remaining fuel level of the vehicle can be determined directly based on the liquid level resistance signal of the vehicle's fuel tank, and the vehicle speed and current driving mode can be retrieved to determine the vehicle's operating status.

[0034] Furthermore, in order to more accurately determine the remaining fuel level of the vehicle, the process of obtaining the remaining fuel level of the vehicle may further include: obtaining the liquid level resistance signal of the vehicle's fuel tank and the vehicle's slope signal; determining the corrected resistance value by looking up a preset first relationship table based on the liquid level resistance signal and the slope signal, wherein the preset first relationship table includes different resistance values ​​and the corresponding corrected resistance values ​​under different slope values; and determining the remaining fuel level of the vehicle based on the corrected resistance value.

[0035] Specifically, the vehicle is equipped with a fuel tank level sensor and a slope sensor. Based on the resistance signal obtained by the fuel tank level sensor and the slope signal obtained by the vehicle-mounted slope sensor, the corrected resistance value is determined by referring to a preset first relationship table based on the liquid level resistance signal and the slope signal.

[0036] In another embodiment, after acquiring the liquid level resistance signal and the slope signal, the slope signal is converted into an arc signal. A preset second relationship table is consulted based on the liquid level resistance signal and the arc signal to determine the corrected resistance value and thus the remaining fuel level of the vehicle. The preset second relationship table includes the corrected resistance values ​​corresponding to different resistance values ​​and different arc values. This eliminates the influence of the slope on the fuel level resistance signal, resulting in a more accurate fuel level signal.

[0037] For example, the resistance range of the fuel tank level sensor is 30Ω to 350Ω, corresponding to a fuel level of 61L to 3L. A negative slope signal indicates the vehicle is facing downwards, while a positive slope signal indicates the vehicle is facing upwards. The vehicle control unit (VCU) uses the received resistance and radian signals to look up a preset second relationship table to correct the fuel level resistance value for flat terrain. This prevents inaccurate fuel level calculations due to vehicle tilt, which would affect range calculations. The slope is calculated as 100 × tan(radians). The preset second relationship table is shown in Table 1 below.

[0038] Table 1

[0039]

[0040]

[0041] Based on the corrected resistance value, a preset third relationship table is consulted to determine the remaining oil quantity and oil level indication. This preset third relationship table includes the remaining oil quantity and oil level indication corresponding to different resistance values. Table 2 below provides an example of such a table:

[0042] Table 2

[0043]

[0044] In the specific implementation process, the first average fuel consumption and the second average fuel consumption are obtained through the following steps: In each sampling period, the first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption are determined, wherein the first unit distance is the distance traveled by the vehicle per unit time during the first preset mileage, the second unit distance is the distance traveled by the vehicle per unit time during the second preset mileage, the first unit fuel consumption is the fuel consumption per unit time during the first preset mileage, and the second unit fuel consumption is the fuel consumption per unit time during the second preset mileage; based on the first unit distance, the first unit fuel consumption, the first average fuel consumption of the previous sampling period, and the first preset mileage, the first average fuel consumption consumed by the vehicle during the first preset mileage is determined, and based on the second unit distance, the second unit fuel consumption, the second average fuel consumption of the previous sampling period, and the second preset mileage, the second average fuel consumption consumed by the vehicle during the second preset mileage is determined.

[0045] Optionally, the sampling period can be 10ms, 1s, or 10s. The first preset mileage can be between 20km and 100km, for example, 50km, and the second preset mileage can be between 400km and 600km, for example, 500km. The following explanation uses the calculation of the average fuel consumption within the first preset mileage of 50km and the second preset mileage of 500km as an example.

[0046] In a specific embodiment, determining the first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption may include: obtaining the vehicle's total driving time, total driving distance, and total fuel consumption; if the total driving distance is less than or equal to a first preset mileage, then determining the vehicle's first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption based on the total driving time, the total driving distance, and the total fuel consumption.

[0047] Specifically, the system obtains the vehicle's total driving time T, total driving distance Y, and total fuel consumption P; it then determines whether the total driving distance Y is greater than a first preset mileage Mileage S and whether Y is greater than a second preset mileage Mileage L; if the total driving distance Y is less than or equal to the first preset mileage Mileage S, it determines the vehicle's first unit distance DisS and second unit distance DisL based on the total driving time T and total driving distance Y, and determines the vehicle's first unit fuel consumption FualS and second unit fuel consumption FualL based on the total driving time T and total fuel consumption P. Here, the first unit distance DisS equals the second unit distance DisL, and the first unit fuel consumption FualS equals the second unit fuel consumption FualL.

[0048] Based on the first unit distance, the first unit fuel consumption, the first average fuel consumption of the previous sampling period, and the first preset mileage, the first average fuel consumption OilCnsS(t) consumed by the vehicle when traveling the first preset mileage is determined, which may include formula one:

[0049] OilCnsS(t)=OilCnsS(t-1)-OilCnsS(t-1)×DisS / MileageS+FualS / MileageS

[0050] The first average fuel consumption OilCnsS(t) is determined, where OilCnsS(t-1) is the first average fuel consumption of the previous sampling period, DisS is the first unit distance, MileageS is the first preset mileage, that is, the fuel consumption calculation mileage window for driving the first preset mileage, and FualS is the first unit fuel consumption.

[0051] Based on the second unit distance, the second unit fuel consumption, the second average fuel consumption of the previous sampling period, and the second preset mileage, the second average fuel consumption consumed by the vehicle when traveling the second preset mileage can be determined, which may include formula two:

[0052] OilCnsL(t)=OilCnsL(t-1)-OilCnsL(t-1)×DisL / MileageL+FualL / MileageL

[0053] The second average fuel consumption OilCnsL(t) is determined, where OilCnsL(t-1) is the second average fuel consumption of the previous sampling period, DisL is the second unit distance, MileageL is the second preset mileage, that is, the fuel consumption calculation mileage window for driving the second preset mileage, and FualL is the second unit fuel consumption.

[0054] The determination of the first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption includes: obtaining the vehicle's total driving time, total driving distance, and total fuel consumption; if it is determined that the total driving distance Y is greater than the first preset mileage MileageS, and Y is less than or equal to the second preset mileage MileageL, then the first total driving time T1 required for the latest first preset mileage, the first total fuel consumption P1 required for the latest first preset mileage, the total driving time T, the total driving distance Y, and the total fuel consumption P are obtained.

[0055] The first total time required for the vehicle's latest preset mileage refers to the time taken for the vehicle to travel the most recent preset mileage at the current data collection time; the first fuel consumption required for the vehicle's latest preset mileage refers to the fuel consumption consumed for the vehicle to travel the most recent preset mileage at the current data collection time.

[0056] For example, taking the first preset mileage as 50km as an example, when the total driving distance of the vehicle is 60km, the first total time required for the vehicle to travel the latest first preset mileage is: the time used for the vehicle to travel the latest 50km, and the first total fuel consumption required for the vehicle to travel the latest first preset mileage is: the fuel consumption consumed by the vehicle to travel the latest 50km.

[0057] Based on the first total duration T1 and the first preset mileage Mileage S, the first unit distance DisS of the vehicle is determined. Based on the first total duration T1 and the first total fuel consumption P1, the first unit fuel consumption FualS of the vehicle is determined. Based on the total driving time T and the total driving distance Y, the second unit distance DisL of the vehicle is determined. Based on the total driving time T and the total fuel consumption P, the second unit fuel consumption FualL of the vehicle is determined.

[0058] Substituting the first unit distance DisS, the first unit fuel consumption FualS, the first average fuel consumption OilCnsS(t-1) of the previous sampling period, and the first preset mileage MileageS into Formula 1 above, the first average fuel consumption OilCnsS(t) is determined. Similarly, substituting the second unit distance DisL, the second unit fuel consumption FualL, the second average fuel consumption OilCnsL(t-1) of the previous sampling period, and the second preset mileage MileageL into Formula 2 above, the second average fuel consumption is determined.

[0059] The determination of the first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption includes: obtaining the vehicle's total driving time, total driving distance, and total fuel consumption; if it is determined that the total driving distance Y is greater than the second preset mileage MileageL, then obtaining the first total time T1 required for the latest first preset mileage, the first total fuel consumption P1 required for the latest first preset mileage, the second total time T2 required for the latest second preset mileage, and the second total fuel consumption P2 required for the latest second preset mileage; based on the first total time T1, the first total fuel consumption P1, and the first preset mileage MileageS, determining the vehicle's first unit distance DisS and the first unit fuel consumption FualS; and based on the second total time T2, the second total fuel consumption P2, and the second preset mileage MileageL, determining the vehicle's second unit distance DisL and the second unit fuel consumption FualL.

[0060] For example, the second total time required to obtain the latest preset mileage of the vehicle is the total time used to obtain the latest 500km of the vehicle's journey, and the second total fuel consumption required to obtain the latest preset mileage of the vehicle is the total fuel consumption used to obtain the latest 500km of the vehicle's journey.

[0061] Based on the second total duration T2 and the second preset mileage MileageL, the second unit distance DisL of the vehicle is determined, and based on the second total duration T2 and the second total fuel consumption P2, the second unit fuel consumption FualL of the vehicle is determined.

[0062] Next, the first unit distance DisS, the first unit fuel consumption FualS, the first average fuel consumption OilCnsS(t-1) of the previous sampling period, and the first preset mileage MileageS are substituted into Formula 1 to determine the first average fuel consumption OilCnsS(t). The second unit distance DisL, the second unit fuel consumption FualL, the second average fuel consumption OilCnsL(t-1) of the previous sampling period, and the second preset mileage L are substituted into Formula 2 to determine the second average fuel consumption OilCnsL(t).

[0063] Step S102: Based on the operating status, the first average fuel consumption, and the second average fuel consumption, determine the overall fuel consumption of the vehicle.

[0064] In a specific embodiment, determining the vehicle's overall fuel consumption based on the operating status, a first average fuel consumption, and a second average fuel consumption may include: determining a weighting factor based on the remaining fuel level, determining a vehicle speed correction coefficient based on the vehicle speed, and determining a driving mode correction coefficient based on the driving mode; weighting the first average fuel consumption, the second average fuel consumption, and the weighting factor, and then multiplying this by the vehicle speed correction coefficient and the driving mode correction coefficient to determine the vehicle's overall fuel consumption. It should be noted that the remaining fuel level, vehicle speed, and driving mode here refer to the remaining fuel level, vehicle speed, and driving mode at the time of data collection.

[0065] Specifically, the weighting factor Kop can be obtained by looking up a preset second correspondence table based on the fuel level (remaining fuel level) in the fuel tank. The preset second correspondence table includes the correspondence between the remaining fuel level and the weighting factor. In the preset second correspondence table, the higher the remaining fuel level, the larger the weighting factor for long mileage, and the lower the remaining fuel level, the larger the weighting factor for short mileage.

[0066] The vehicle speed correction factor Kspeed can be obtained by looking up the preset third correspondence table based on the vehicle speed. The preset third correspondence table includes the correspondence between vehicle speed and vehicle speed correction factor. In the preset third correspondence table, the faster the vehicle speed, the larger the vehicle speed correction factor Kspeed is.

[0067] The driving mode correction factor Kdm can be obtained by looking up the preset fourth correspondence table based on the driving mode. This preset fourth correspondence table includes the correspondence between driving modes and their correction factors. For example, in the preset fourth correspondence table, the correction factor is 1.1 for Sport mode, 1.0 for Comfort mode, and 0.9 for ECO mode.

[0068] In a specific embodiment, the first average fuel consumption, the second average fuel consumption, and the weighting factor are weighted and calculated, and then multiplied by the vehicle speed correction coefficient and the driving mode correction coefficient to determine the vehicle's comprehensive fuel consumption. This can include calculations based on Formula 3:

[0069] OilCnsC(t)=(OilCnsL(t)×Kop+OilCnsS(t)×(1-Kop))×Kdm×Kspeed

[0070] The vehicle's overall fuel consumption is determined, where OilCnsL(t) is the second average fuel consumption, Kop is the weighting factor, OilCnsS(t) is the first average fuel consumption, Kdm is the driving mode correction coefficient, and Kspeed is the vehicle speed correction coefficient.

[0071] Therefore, by calculating the first average fuel consumption OilCnsL(t) and the second average fuel consumption OilCnsS(t) respectively, and by looking up the weighting factor Kop according to the fuel tank level, and correcting it according to Kop, the first average fuel consumption OilCnsL(t), the second average fuel consumption OilCnsS(t), the driving mode correction coefficient Kdm, the vehicle speed correction coefficient Kspeed, etc., the comprehensive fuel consumption used for calculating the driving range is obtained.

[0072] Step S103: Based on the combined fuel consumption and the remaining fuel, determine the vehicle's driving range.

[0073] In a specific embodiment, the vehicle's driving range OilRemainMileageReal is determined based on the combined fuel consumption OilCnsC and the remaining fuel volume Voilrem, which may include formula four:

[0074] OilRemainMileageReal=Voilrem / OilCnsC

[0075] Determine the vehicle's driving range.

[0076] Furthermore, to obtain a more accurate driving range, after determining the vehicle's driving range, the process may further include: determining the fuel percentage based on the remaining fuel level, and determining a filtering coefficient by looking up a preset first correspondence table based on the fuel percentage, wherein the preset first correspondence table includes the correspondence between the fuel percentage and the filtering coefficient; correcting the driving range according to the filtering coefficient, and displaying the corrected driving range on the vehicle's odometer. This ensures that the displayed driving range is corrected to the actual driving range according to a certain filtering coefficient, so that the displayed driving range change curve is smooth and the rate of decrease is close to the actual driving distance. The displayed driving range obtained according to the filtering coefficient is used for instrument display.

[0077] The fuel percentage is the ratio between the remaining fuel level and the total fuel tank capacity. Therefore, the fuel percentage can be determined based on the remaining fuel level, and thus the filtering coefficient can be determined. In the preset first correspondence table, the higher the fuel percentage, the larger the filtering coefficient, and the more closely it reflects the actual driving mileage.

[0078] The remaining fuel level in this application is calculated based on the fuel tank level signal and corrected for the vehicle's forward and backward tilt angles, thus eliminating the influence of vehicle angle on fuel level calculation. By calculating long-range average fuel consumption and short-range average fuel consumption separately, and obtaining a weighting factor from a table based on the fuel tank level, and then correcting for these factors using the weighting factor, long-range average fuel consumption, short-range average fuel consumption, driving mode correction coefficient, and vehicle speed correction coefficient, a comprehensive fuel consumption for calculating the driving range is obtained. This method comprehensively considers multiple factors such as the vehicle's remaining fuel level and comprehensive fuel consumption, enabling a more accurate prediction of the hybrid vehicle's fuel-powered driving range.

[0079] In summary, the method for determining the fuel-efficient driving range of a hybrid vehicle provided by this invention, by considering the average fuel consumption over long and short driving distances, performs a weighted calculation and analysis to obtain a more accurate comprehensive fuel consumption. This allows for a more accurate prediction of the hybrid vehicle's fuel-efficient driving range, making the theoretical driving range closer to the vehicle's expected driving range. This application optimizes vehicle fuel consumption calculation, more accurately determines the vehicle's fuel efficiency under different driving conditions, and more accurately predicts the hybrid vehicle's fuel-efficient driving range. This achieves a more scientific and accurate calculation of the hybrid vehicle's fuel-efficient driving range, improving driving safety and user experience. This helps drivers adjust their driving habits to achieve the desired fuel consumption value, thereby improving fuel economy.

[0080] Secondly, based on the same inventive concept, this embodiment provides a device for determining the fuel range of a hybrid vehicle, such as... Figure 2 As shown, it includes:

[0081] The acquisition module 401 is used to acquire the vehicle's operating status, first average fuel consumption, and second average fuel consumption during vehicle operation. The operating status includes remaining fuel, vehicle speed, and driving mode. The first average fuel consumption is the average fuel consumption consumed when the vehicle travels a first preset mileage. The second average fuel consumption is the average fuel consumption consumed when the vehicle travels a second preset mileage. The length of the second preset mileage is greater than the length of the first preset mileage.

[0082] The comprehensive fuel consumption determination module 402 is used to determine the comprehensive fuel consumption of the vehicle based on the operating status, the first average fuel consumption, and the second average fuel consumption.

[0083] The driving range determination module 403 is used to determine the driving range of the vehicle based on the comprehensive fuel consumption and the remaining fuel.

[0084] As an optional embodiment, the comprehensive fuel consumption determination module 402 is specifically used to: determine a weighting factor based on the remaining fuel, determine a vehicle speed correction coefficient based on the vehicle speed, and determine a driving mode correction coefficient based on the driving mode; calculate the comprehensive fuel consumption of the vehicle by weighting the first average fuel consumption, the second average fuel consumption and the weighting factor, and then multiplying the result by the vehicle speed correction coefficient and the driving mode correction coefficient.

[0085] As an optional embodiment, the acquisition module 401 specifically includes:

[0086] The first acquisition submodule is used to determine the first unit distance, the second unit distance, the first unit fuel consumption, and the second unit fuel consumption in each sampling period. The first unit distance is the distance traveled by the vehicle per unit time during the first preset mileage, the second unit distance is the distance traveled by the vehicle per unit time during the second preset mileage, the first unit fuel consumption is the fuel consumption per unit time during the first preset mileage, and the second unit fuel consumption is the fuel consumption per unit time during the second preset mileage.

[0087] The average fuel consumption determination submodule is used to determine the first average fuel consumption consumed by the vehicle when traveling a first preset mileage based on the first unit distance, the first unit fuel consumption, the first average fuel consumption of the previous sampling period, and the first preset mileage, and to determine the second average fuel consumption consumed by the vehicle when traveling a second preset mileage based on the second unit distance, the second unit fuel consumption, the second average fuel consumption of the previous sampling period, and the second preset mileage.

[0088] As an optional embodiment, the first acquisition submodule is specifically used to: acquire the total driving time, total driving distance and total fuel consumption of the vehicle; if the total driving distance is less than or equal to a first preset mileage, then determine the first unit distance, second unit distance, first unit fuel consumption and second unit fuel consumption of the vehicle based on the total driving time, total driving distance and total fuel consumption.

[0089] As an optional embodiment, the first acquisition submodule is specifically used to: acquire the vehicle's total driving time, total driving distance, and total fuel consumption; if the total driving distance is greater than a first preset mileage and less than or equal to a second preset mileage, acquire the first total driving time required for the latest first preset mileage, the first total fuel consumption required for the latest first preset mileage, the vehicle's total driving time, total driving distance, and total fuel consumption; determine the vehicle's first unit distance and first unit fuel consumption based on the first total driving time, first total fuel consumption, and first preset mileage; and determine the vehicle's second unit distance and second unit fuel consumption based on the total driving time, total driving distance, and total fuel consumption.

[0090] As an optional embodiment, the first acquisition submodule is specifically used for: acquiring the vehicle's total driving time, total driving distance, and total fuel consumption; if the total driving distance is greater than the second preset mileage, acquiring the first total time required for the vehicle to travel the latest first preset mileage, the first total fuel consumption required for the latest first preset mileage, the second total time required for the latest second preset mileage, and the second total fuel consumption required for the latest second preset mileage; determining the vehicle's first unit distance and first unit fuel consumption based on the first total time, first total fuel consumption, and first preset mileage, and determining the vehicle's second unit distance and second unit fuel consumption based on the second total time, second total fuel consumption, and second preset mileage.

[0091] As an optional embodiment, the acquisition module 401 is specifically used to: acquire the liquid level resistance signal of the vehicle's fuel tank and the vehicle's slope signal; determine the corrected resistance value by looking up a preset first relationship table based on the liquid level resistance signal and the slope signal; and determine the remaining fuel volume of the vehicle based on the corrected resistance value. The preset first relationship table includes different resistance values ​​and the corresponding corrected resistance values ​​under different slope values.

[0092] As an optional embodiment, the device further includes: a filtering module, configured to determine the fuel quantity percentage based on the remaining fuel quantity, and determine the filtering coefficient by looking up a preset first correspondence table according to the fuel quantity percentage, wherein the preset first correspondence table includes the correspondence between the fuel quantity percentage and the filtering coefficient; correct the driving range according to the filtering coefficient, and display the corrected driving range on the vehicle's odometer.

[0093] Each of the above modules can be implemented using software code, in which case they can be stored in the memory of the control device. Alternatively, each of the above modules can be implemented using hardware, such as integrated circuit chips.

[0094] The device for determining the fuel range of a hybrid vehicle provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned method embodiment. For the sake of brevity, any parts not mentioned in the device embodiment can be referred to the corresponding content in the aforementioned method embodiment.

[0095] Thirdly, based on the same inventive concept, this embodiment provides a vehicle 500, such as... Figure 3 As shown, it includes: a voice module 504, a memory 501, a processor 502, and a computer program 503 stored in the memory and executable on the processor. When the processor 501 executes the program, it implements the steps of the method for determining the fuel range of a hybrid vehicle as described in the first aspect above.

[0096] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0097] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0098] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A module that specifies the function in one or more boxes.

[0099] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction modules implemented in a process. Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0100] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0101] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0102] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for determining the fuel range of a hybrid vehicle, characterized in that, The method comprises: In the vehicle operation, the operation state, the first average fuel consumption and the second average fuel consumption of the vehicle are acquired, wherein the operation state comprises the remaining fuel amount, the vehicle speed and the driving mode, the first average fuel consumption is the average fuel consumption consumed by the vehicle running the first preset mileage, and the second average fuel consumption is the average fuel consumption consumed by the vehicle running the second preset mileage, and the length of the second preset mileage is greater than the length of the first preset mileage; Based on the operation state, the first average fuel consumption and the second average fuel consumption, the comprehensive fuel consumption of the vehicle is determined; Based on the comprehensive fuel consumption and the remaining fuel amount, the cruising range of the vehicle is determined; The determination of the comprehensive fuel consumption of the vehicle based on the operation state, the first average fuel consumption and the second average fuel consumption comprises: determining a weighting factor according to the remaining fuel amount, determining a vehicle speed correction coefficient according to the vehicle speed, and determining a driving mode correction coefficient according to the driving mode; the first average fuel consumption, the second average fuel consumption and the weighting factor are weighted and calculated, and then multiplied by the vehicle speed correction coefficient and the driving mode correction coefficient to determine the comprehensive fuel consumption of the vehicle.

2. The method of claim 1, wherein, The first average fuel consumption and the second average fuel consumption are obtained by the following steps: In each sampling period, the first unit distance, the second unit distance, the first unit fuel consumption and the second unit fuel consumption are determined, wherein the first unit distance is the distance traveled by the vehicle per unit time during the running of the first preset mileage, the second unit distance is the distance traveled by the vehicle per unit time during the running of the second preset mileage, the first unit fuel consumption is the fuel consumption per unit time of the vehicle during the running of the first preset mileage, and the second unit fuel consumption is the fuel consumption per unit time of the vehicle during the running of the second preset mileage; Based on the first unit distance, the first unit fuel consumption, the first average fuel consumption of the previous sampling period and the first preset mileage, the first average fuel consumption consumed by the vehicle running the first preset mileage is determined, and based on the second unit distance, the second unit fuel consumption, the second average fuel consumption of the previous sampling period and the second preset mileage, the second average fuel consumption consumed by the vehicle running the second preset mileage is determined.

3. The method of claim 2, wherein, The determination of the first unit distance, the second unit distance, the first unit fuel consumption and the second unit fuel consumption comprises: The total running time, the total running distance and the total fuel consumption of the vehicle are acquired; If the total running distance is less than or equal to the first preset mileage, the first unit distance, the second unit distance, the first unit fuel consumption and the second unit fuel consumption of the vehicle are determined according to the total running time, the total running distance and the total fuel consumption.

4. The method of claim 2, wherein, The determination of the first unit distance, the second unit distance, the first unit fuel consumption and the second unit fuel consumption comprises: acquire total driving time, total driving distance and total fuel consumption of the vehicle; if the total driving distance is greater than the first preset distance and less than or equal to the second preset distance, acquire first total time required for the vehicle to drive the first preset distance, first total fuel consumption required for the vehicle to drive the first preset distance, the total driving time, the total driving distance and the total fuel consumption; determine first unit distance and first unit fuel consumption of the vehicle according to the first total time, the first total fuel consumption and the first preset distance, and determine second unit distance and second unit fuel consumption of the vehicle according to the total driving time, the total driving distance and the total fuel consumption.

5. The method of claim 2, wherein, The determination of the first unit distance, the second unit distance, the first unit fuel consumption and the second unit fuel consumption comprises: acquiring total driving time, total driving distance and total fuel consumption of the vehicle; if the total driving distance is greater than the second preset distance, acquiring first total time required for the vehicle to drive the first preset distance, first total fuel consumption required for the vehicle to drive the first preset distance, second total time required for the vehicle to drive the second preset distance and second total fuel consumption required for the vehicle to drive the second preset distance; determining first unit distance and first unit fuel consumption of the vehicle according to the first total time, the first total fuel consumption and the first preset distance, and determining second unit distance and second unit fuel consumption of the vehicle according to the second total time, the second total fuel consumption and the second preset distance.

6. The method of claim 1, wherein, acquiring the remaining fuel quantity of the vehicle comprises: acquiring a liquid level resistance value signal of a fuel tank of the vehicle and a slope signal of the vehicle; determining a corrected resistance value according to the liquid level resistance value signal and the slope signal by referring to a preset first relationship table, and determining the remaining fuel quantity of the vehicle according to the corrected resistance value, wherein the preset first relationship table comprises different resistance values and corresponding corrected resistance values under different slope values.

7. The method of claim 1, wherein, After determining the cruising range of the vehicle, the method further comprises: determining a fuel quantity percentage based on the remaining fuel quantity, and determining a filtering coefficient by referring to a preset first corresponding table according to the fuel quantity percentage, wherein the preset first corresponding table comprises a corresponding relationship between the fuel quantity percentage and the filtering coefficient; correcting the cruising range according to the filtering coefficient, and displaying the corrected cruising range in a mileage meter of the vehicle.

8. A device for determining the fuel range of a hybrid vehicle, characterized in that, comprises: an acquiring module, configured to acquire a running state, a first average fuel consumption and a second average fuel consumption of a vehicle in running of the vehicle, wherein the running state comprises a remaining fuel quantity, a vehicle speed and a driving mode, the first average fuel consumption is an average fuel consumption consumed by the vehicle to drive a first preset distance, and the second average fuel consumption is an average fuel consumption consumed by the vehicle to drive a second preset distance, the second preset distance being longer than the first preset distance; a comprehensive fuel consumption determining module, configured to determine a comprehensive fuel consumption of the vehicle based on the running state, the first average fuel consumption and the second average fuel consumption; The cruising range determination module is configured to determine a cruising range of the vehicle based on the comprehensive fuel consumption and the remaining fuel amount. The determining the comprehensive fuel consumption of the vehicle based on the running state, the first average fuel consumption and the second average fuel consumption comprises: determining a weighting factor based on the remaining fuel amount, determining a vehicle speed correction coefficient based on the vehicle speed, and determining a driving mode correction coefficient based on the driving mode; and multiplying the weighted calculation of the first average fuel consumption, the second average fuel consumption and the weighting factor by the vehicle speed correction coefficient and the driving mode correction coefficient to determine the comprehensive fuel consumption of the vehicle.

9. A vehicle characterized by comprising: The method comprises: 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 steps of the method according to any one of claims 1-7.

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