Fuel content calculation method and system for flexible fuel vehicle and vehicle

Abstract

The invention discloses a fuel content calculation method and system for a flexible fuel vehicle and the vehicle. The fuel content calculation method of the flexible fuel vehicle comprises the steps that a backflow device is started to obtain the mixing proportion of fuel detected by a fuel sensor, and the backflow device is used for controlling the fuel in a fuel tank to flow back to the fuel tank after passing through the fuel sensor located in an engine oil supply pipeline; obtaining the total amount of fuel in the fuel tank; and obtaining the content of each fuel in the fuel tank according to the total amount of the fuel in the fuel tank and the mixing proportion. By adopting the embodiment of the invention, the updating display of the endurance can be carried out in time after the fuel is supplemented to the vehicle or after the fuel is supplemented, so that a user can quickly and intuitively feel that the endurance mileage is increased after the fuel is supplemented to the vehicle, and the use experience of the vehicle is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a method and system for calculating the fuel content of a flexible fuel vehicle and a vehicle. Background Art

[0002] A flexible-fuel vehicle is a vehicle equipped with a flexible-fuel engine (engine). A flexible-fuel vehicle can use two or more fuels (such as gasoline, methanol, ethanol, etc.) mixed in any proportion.

[0003] For flexible fuel vehicles, different types of fuel are added to the same fuel tank, and the fuel tank is usually not equipped with a fuel ratio sensor. Therefore, when the vehicle is refueling, it is impossible to determine the ratio of each fuel in the fuel tank. Since the energy consumption values ​​of different types of fuels are different, it is impossible to determine the vehicle's range after refueling in a timely manner. The range cannot be updated in time, and usually still displays the range before refueling. Users cannot intuitively feel the improvement in range after refueling, causing user complaints. The range is usually updated after the vehicle has been running for a period of time. The fuel ratio detected by the fuel sensor in the engine fuel supply line is used to determine the new range and update it. The lag is relatively obvious, affecting the vehicle's user experience. Summary of the invention

[0004] Based on this, it is necessary to provide a fuel content calculation method, system and vehicle for a flexible-fuel vehicle to address the above-mentioned technical problems, which can promptly update and display the range after the vehicle is refueled or refueling is completed, so that users can quickly and intuitively feel the improvement in the vehicle's cruising range after refueling, thereby effectively improving the vehicle's user experience.

[0005] In a first aspect, a method for calculating fuel content of a flexible fuel vehicle is provided, comprising:

[0006] Starting a reflux device to obtain a mixing ratio of the fuel detected by the fuel sensor, wherein the reflux device is used to control the fuel in the fuel tank to flow back to the fuel tank after passing through the fuel sensor located in the fuel supply line of the engine;

[0007] obtaining the total amount of fuel in the fuel tank;

[0008] The content of each fuel in the fuel tank is obtained according to the total amount of fuel in the fuel tank and the mixing ratio.

[0009] In some examples, the timing of starting the reflux device includes a process of refueling the vehicle and after the vehicle refueling is completed. During the process of refueling the vehicle, starting the reflux device to obtain a mixing ratio change trend of the fuel detected by the fuel sensor includes:

[0010] During the process of refueling the vehicle, the mixing ratio of the fuel detected by the fuel sensor is obtained in real time;

[0011] Based on the fuel mixing ratio obtained in real time, the fuel mixing ratio change trend is obtained;

[0012] The type of supplementary fuel is determined according to the change trend.

[0013] In some examples, obtaining the content of each fuel in the refueling process according to the refueling type, the first total amount of fuel in the fuel tank before refueling, and the first mixing ratio includes:

[0014] obtaining a first total amount of fuel and a first mixing ratio in the fuel tank before refueling;

[0015] According to the first fuel total amount and the first mixing ratio, the content of each fuel before refueling is obtained;

[0016] determining a target fuel according to the type of supplemental fuel;

[0017] The content of the target fuel during the refueling process is obtained based on the first total amount of fuel, the total amount of fuel in the fuel tank during the refueling process, and the content of the target fuel before the refueling process, and the content of the fuel other than the target fuel before the refueling process is used as the content of the corresponding fuel during the refueling process.

[0018] In some examples, before starting the reflux device and obtaining the mixing ratio variation trend of the fuel detected by the fuel sensor during the process of refueling the vehicle, the method further includes:

[0019] detecting a state of a fuel cap of the fuel tank;

[0020] If the fuel port cover is in an open state, determining whether the fuel filling mark is set;

[0021] If yes, it is determined that the vehicle is in the process of refueling.

[0022] In some examples, this also includes:

[0023] After the vehicle is refueled, the reflux device is started to obtain a second mixing ratio of the fuel detected by the fuel sensor;

[0024] obtaining the total amount of fuel in the fuel tank after refueling is completed;

[0025] The content of each fuel after the refueling is completed is obtained according to the total amount of fuel in the fuel tank after the refueling is completed and the second mixing ratio.

[0026] In some examples, after the vehicle is refueled, before the return device is started and the second mixing ratio of the fuel detected by the fuel sensor is obtained, the method further includes:

[0027] detecting a state of a fuel cap of the fuel tank;

[0028] If the fuel port cover is changed from an open state to a closed state, determining whether the fuel filling mark is reset;

[0029] If yes, it is determined that the vehicle refueling is complete.

[0030] In some examples, this also includes:

[0031] After a predetermined time from the engine start, obtaining a third mixing ratio of the fuel detected by the fuel sensor;

[0032] The content of each fuel in the fuel tank is obtained according to the third mixing ratio.

[0033] In some examples, this also includes:

[0034] The driving range of the vehicle is obtained according to the content of each fuel and the energy consumption value corresponding to each fuel.

[0035] In a second aspect, a fuel content calculation system for a flexible fuel vehicle is provided, comprising:

[0036] an acquisition module, used for starting a reflux device to obtain a mixing ratio of the fuel detected by the fuel sensor, wherein the reflux device is used for controlling the fuel in the fuel tank to flow back to the fuel tank after passing through the fuel sensor located in the fuel supply line of the engine;

[0037] A fuel total amount determination module, used to obtain the total amount of fuel in the fuel tank;

[0038] The content calculation module is used to obtain the content of each fuel in the fuel tank according to the total amount of fuel in the fuel tank and the mixing ratio.

[0039] According to a third aspect, a vehicle is provided, comprising: a fuel content calculation system for a flexible-fuel vehicle according to the second aspect.

[0040] By adopting the embodiment of the present application, the reflux device is started to obtain the mixing ratio of the fuel through the fuel sensor configured in the engine fuel supply pipeline, and the content of each fuel in the fuel tank is obtained according to the total amount of fuel in the fuel tank and the mixing ratio. Then, the vehicle's driving range can be calculated in real time according to the content of each fuel in the fuel tank when the fuel is replenished or after the fuel is replenished. Compared with the prior art, when the vehicle is refueled, it is impossible to determine the proportion of each fuel in the fuel tank, and thus the driving range cannot be determined and the driving range display cannot be updated in time. Usually, the driving range before the fuel is replenished is still displayed, which causes user dissatisfaction and the user cannot intuitively feel the improvement in driving range. Compared with the prior art, when the vehicle is refueled, the driving range can be updated and displayed in time, so that the user can quickly and intuitively feel the improvement in driving range after the vehicle is refueled, thereby effectively improving the use experience of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0042] Figure 1 A flow chart of a method for calculating the fuel content of a flexible fuel vehicle provided in an embodiment of the present application;

[0043] Figure 2 A schematic diagram of the fuel reflux principle of a method for calculating the fuel content of a flexible fuel vehicle provided in another embodiment of the present application;

[0044] Figure 3 A flow chart of a method for calculating the fuel content of a flexible fuel vehicle provided in another embodiment of the present application;

[0045] Figure 4 A flowchart of a method for calculating the fuel content of a flexible fuel vehicle provided in another embodiment of the present application

[0046] Figure 5 A structural block diagram of a fuel content calculation system for a flexible fuel vehicle provided in an embodiment of the present application;

[0047] Figure 6 A structural block diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The present application is further described in detail below in conjunction with the embodiments and drawings. It is to be understood that the specific embodiments described herein are only used to explain the relevant application, rather than to limit the application. It is also necessary to explain that, for ease of description, only the parts related to the application are shown in the drawings.

[0049] It should be noted that, in the absence of conflict, the embodiments of the present application, that is, the features of the embodiments, can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] The following describes in detail the fuel content calculation method, system and vehicle of a flexible-fuel vehicle according to an embodiment of the present application in conjunction with the accompanying drawings.

[0051] Before describing the fuel content calculation method, system and vehicle of a flexible-fuel vehicle according to an embodiment of the present application, the flexible-fuel vehicle is first explained. A flexible-fuel vehicle is a vehicle equipped with a flexible-fuel engine (engine). A flexible-fuel vehicle is a vehicle that can use two or more fuels (such as gasoline, methanol, ethanol, etc.) mixed in any proportion. These two or more fuels do not need to be added to different fuel tanks (fuel containers) separately, but are added to the same fuel tank of the vehicle and mixed in the fuel tank, that is, the mixed fuel is in the same fuel tank.

[0052] Figure 1 FIG. 1 is a flow chart of a method for calculating the fuel content of a flexible fuel vehicle according to an embodiment of the present application. Figure 1 As shown, a method for calculating the fuel content of a flexible fuel vehicle according to an embodiment of the present application includes the following steps:

[0053] S101: Start a reflux device to obtain a mixing ratio of the fuel detected by a fuel sensor, wherein the reflux device is used to control the fuel in the fuel tank to flow back to the fuel tank after passing through a fuel sensor located in an engine fuel supply line.

[0054] The timing of starting the reflux device includes the process of refueling the vehicle and after the vehicle refueling is completed. For example: during the process of refueling the vehicle, the reflux device is started to obtain the mixing ratio change trend of the fuel detected by the fuel sensor, wherein the reflux device controls the fuel in the fuel tank to flow back to the fuel tank after passing through the fuel sensor located in the engine fuel supply pipeline.

[0055] In one embodiment of the present application, during the process of refueling a vehicle, a reflux device is started to obtain a mixing ratio change trend of the fuel detected by a fuel sensor, including: during the process of refueling a vehicle, obtaining the mixing ratio of the fuel detected by the fuel sensor in real time; obtaining a mixing ratio change trend of the fuel based on the mixing ratio of the fuel obtained in real time; and determining the type of refueling fuel according to the change trend.

[0056] Among them, during the process of refueling the vehicle, before starting the reflux device and obtaining the mixing ratio change trend of the fuel detected by the fuel sensor, it also includes: detecting the state of the fuel port cover of the fuel tank; if the fuel port cover is in an open state, judging whether the fuel filling mark is set; if so, determining that the vehicle is in the process of refueling.

[0057] In the above description, the function of the reflux device is to control the fuel in the fuel tank of the vehicle to flow into the fuel supply line of the engine, and to control the fuel to flow back into the fuel tank after passing through the fuel sensor arranged on the fuel supply line of the engine.

[0058] One end of the engine fuel supply line is connected to the fuel tank, and the other end is connected to the engine, so that the fuel in the fuel tank can provide fuel to the engine through the engine fuel supply line. A fuel sensor is provided on the engine fuel supply line, and the function of the fuel sensor is to detect the mixing ratio of the fuel supplied to the engine. When the reflux device is activated, the fuel in the vehicle's fuel tank is controlled to flow into the engine's fuel supply line, and after passing through the fuel sensor provided on the engine fuel supply line, the fuel is controlled to flow back into the fuel tank.

[0059] The reflux device may include a reflux pump and a reflux pipe, such as Figure 2 As shown, after the return device is activated, the return pump works to control the fuel to flow from the fuel tank through the engine fuel supply line and to control the fuel to return from the return pipe to the fuel tank.

[0060] When the vehicle is refueling, the reflux pump is driven to work, so that the fuel flows from the fuel tank through the engine fuel supply pipeline, and the fuel is controlled to return to the fuel tank from the reflux pipe, passing through the fuel sensor on the way. The fuel sensor can detect the fuel mixing ratio in real time.

[0061] In a specific example, when the fuel tank cap is opened or a fuel replenishment signal is received, the process of vehicle refueling is determined. At this time, the reflux device is controlled to operate so that the fuel sensor can detect the fuel mixing ratio in real time. As the fuel is continuously added, the fuel sensor detects that the fuel mixing ratio is constantly changing. In this way, the changing trend of the fuel mixing ratio can be obtained.

[0062] S102: Obtain the total amount of fuel in the fuel tank.

[0063] S103: Obtaining the content of each fuel in the fuel tank according to the total amount of fuel in the fuel tank and the mixing ratio.

[0064] In the process of replenishing fuel, the type of replenished fuel is determined according to the change trend of the mixing ratio of the fuel.

[0065] Take two fuels as an example, assuming that they are the first fuel and the second fuel, the first fuel is gasoline, and the second fuel is methanol, then the fuel in the fuel tank is a mixed fuel of gasoline and methanol. Assuming that the gasoline content in the fuel tank before replenishment is 2 liters, the methanol content is 8 liters, and the gasoline ratio is 0.2, if the fuel replenished this time is gasoline, then with the addition of gasoline, the gasoline ratio continues to increase, and then, according to the trend of the fuel mixing ratio change, it can be determined that the type of fuel to be replenished is gasoline. Similarly, if the fuel replenished this time is methanol, then with the addition of methanol, the methanol ratio continues to increase, and then, according to the trend of the fuel mixing ratio change, it can also be determined that the type of fuel to be replenished is methanol.

[0066] The content of each fuel during the refueling process is obtained according to the refueling type, the first total amount of fuel in the fuel tank before refueling, and the first mixing ratio.

[0067] In one embodiment of the present application, Figure 3 As shown, according to the type of supplementary fuel, the total amount of the first fuel in the fuel tank before supplementary fuel, and the first mixing ratio, the content of each fuel in the supplementary fuel process is obtained, including:

[0068] S301: Obtaining a first total amount of fuel and a first mixing ratio in the fuel tank before refueling.

[0069] S302: Obtaining the content of each fuel before refueling according to the first fuel total amount and the first mixing ratio;

[0070] S303: determining a target fuel according to the supplementary fuel type;

[0071] S304: Obtain the content of the target fuel during the refueling process based on the first total amount of fuel, the total amount of fuel in the fuel tank during the refueling process, and the content of the target fuel before the refueling process, and use the content of the fuel other than the target fuel before the refueling process as the content of the corresponding fuel during the refueling process.

[0072] Take two fuels as an example, assuming they are the first fuel and the second fuel, the first fuel is gasoline, and the second fuel is methanol. Since the engine has been started before refueling, the remaining capacity of the fuel tank (i.e., the total amount of the first fuel in the fuel tank before refueling) and the mixing ratio of the first fuel and the second fuel are both known quantities. Assuming that the remaining fuel capacity of the fuel tank before refueling, i.e., the total amount of the first fuel, is Y1, and the mixing ratio of the first fuel and the second fuel is α1, then the content of the first fuel before refueling is X1=Y1×α1, and the content of the second fuel before refueling is Z1=Y1×(1-α1).

[0073] When the fuel is replenished, the reflux device operates, and the fuel in the fuel tank flows back to the fuel tank through the fuel sensor and the reflux pipe at the front end of the engine. The fuel sensor detects the real-time mixing ratio, determines the mixing ratio change trend based on the real-time mixing ratio, and then judges whether the fuel type added is the first fuel or the second fuel.

[0074] During the fuel replenishment process, the fuel capacity in the fuel tank is Y2. If the type of the replenished fuel is the first fuel, the content of the first fuel during the fuel replenishment process is X2=(Y2-Y1)+X1, and the content of the second fuel during the fuel replenishment process is still Z1. If the type of the replenished fuel is the second fuel, the content of the first fuel during the fuel replenishment process is still Y1, and the content of the second fuel is Z2=(Y2-Y1)+Z1.

[0075] During the process of refueling, even if there is no sensor in the fuel tank for detecting the fuel ratio in the fuel tank, the content of each fuel in the fuel tank can be accurately and quickly determined. Furthermore, when refueling, the vehicle's cruising range can be calculated in real time based on the content of each fuel in the fuel tank.

[0076] In one embodiment of the present application, Figure 4 As shown, the method for calculating the fuel content of a flexible fuel vehicle also includes:

[0077] S401: After the vehicle is refueled, the reflux device is started to obtain a second mixing ratio of the fuel detected by the fuel sensor.

[0078] Combination Figure 2 As shown, after the vehicle is refueled, the reflux pump is driven to work, so that the fuel flows from the fuel tank through the engine fuel supply pipeline, and the fuel is controlled to return to the fuel tank from the reflux pipe, passing through the fuel sensor on the way, and the fuel sensor can detect the fuel mixing ratio, which is recorded as the second mixing ratio. For example: when it is detected that the fuel replenishment signal disappears or the fuel tank cap is closed, at this time, the fuel sensor for flexible fuel ratio detection at the front end of the engine identifies the second mixing ratio of the fuel in the fuel tank after the fuel replenishment is completed.

[0079] S402: Obtain the total amount of fuel in the fuel tank after refueling is completed.

[0080] S403: Obtaining the content of each fuel in the fuel tank after the refueling is completed according to the total amount of fuel in the fuel tank after the refueling is completed and the second mixing ratio.

[0081] In the above example, after the vehicle is refueled, the reflux device is started, and before the second mixing ratio of the fuel detected by the fuel sensor is obtained, it also includes: detecting the state of the fuel port cover of the fuel tank; if the fuel port cover is changed from an open state to a closed state, determining whether the fuel filling mark is reset; if so, determining that the vehicle is refueled.

[0082] Taking two fuels as an example, such as the first fuel and the second fuel, after the fuel replenishment is completed, the fuel sensor for flexible fuel ratio detection at the front end of the engine identifies the second mixing ratio α2 of the fuel in the fuel tank after the fuel replenishment is completed.

[0083] Based on the total amount of fuel Y3 in the fuel tank after the fuel replenishment is completed and the second mixing ratio α2, the content of the first fuel X3 = Y3 × α2 and the content of the second fuel Z3 = Y3 × (1-α2) are calculated.

[0084] Therefore, after the vehicle is refueled, the vehicle's cruising range can be quickly calculated and updated in a timely manner by calculating the content of each fuel in the fuel tank, so that users can quickly and intuitively feel the improvement in the vehicle's cruising range after refueling, thereby effectively improving the vehicle's user experience.

[0085] In one embodiment of the present application, the method for calculating the fuel content of a flexible-fuel vehicle further includes: obtaining a third mixing ratio of the fuel detected by the fuel sensor after a predetermined time of engine start; and obtaining the content of each fuel in the fuel tank according to the third mixing ratio.

[0086] In the above example, the predetermined time is obtained in the following manner: start timing when the engine is started; perform time integration on the fuel injection amount of the engine to obtain the total amount of fuel injection that changes with time; determine whether the fuel remaining in the engine fuel supply pipeline is consumed based on the total amount of fuel injection; if so, end timing and use the timing time as the predetermined time.

[0087] Specifically, the fuel before refueling is retained in the engine fuel supply line of the vehicle, and the proportion of each fuel in the fuel is different from the proportion of each fuel after refueling. Therefore, in order to obtain the fuel proportion of each fuel after refueling, the engine needs to consume the fuel before refueling that remains in the engine fuel supply line. This requires a certain time, namely a predetermined time. In other words, after the vehicle is refueled and the engine is started for a period of time, the fuel proportion of each fuel can be obtained based on the sensor in the engine fuel line. The predetermined time is time-integrated according to the fuel injection amount of the engine, and the time consumed when it is greater than or equal to the fuel volume in the engine fuel supply line, such as the fuel tank line.

[0088] For example, if the time integration of the engine fuel injection volume is performed, assuming that after 30 seconds, the total amount of fuel injection obtained is 0.01 liter, and the total volume in the engine fuel supply pipeline is assumed to be 0.01 liter, then the predetermined time can be determined to be 30 seconds. That is, 30 seconds after the engine is started, the fuel proportion of each fuel after fuel replenishment can be obtained through the sensor in the engine fuel pipeline.

[0089] Therefore, during driving, the mixing ratio of flexible fuels can be updated and calculated in real time according to fuel consumption and miscibility, thereby obtaining a more accurate content of each fuel, for example, the vehicle's driving range can be obtained according to the content of each fuel and the energy consumption value corresponding to each fuel, thereby making the update of driving range more accurate and reliable.

[0090] In one embodiment of the present application, a method for calculating the fuel content of a flexible-fuel vehicle, the total amount of fuel in the fuel tank is determined by: obtaining a fuel level value in the fuel tank; filtering the fuel level value, and after filtering, obtaining a fuel volume based on the fuel level value, wherein the fuel volume represents the total amount of fuel.

[0091] Specifically, the fuel tank is provided with a liquid level sensor for detecting the liquid level. After the vehicle's fuel tank is refueled, the liquid level of the fuel in the fuel tank detected by the liquid level sensor changes, and thereby the liquid level value of the vehicle's fuel tank after refueling can be known. Furthermore, since the total capacity of the fuel tank is known, for example, the total capacity of the fuel tank is 60 liters, and the current liquid level value occupies 3 / 4 of the height within the total capacity, the fuel volume of the fuel in the fuel tank after refueling can be converted based on the total capacity of 60 liters and the current liquid level value occupies 3 / 4 of the height within the total capacity, such as 3 / 4 of 60 liters is 45 liters.

[0092] The accuracy of the fuel volume in the fuel tank will affect the accuracy of the cruising range calculation, so the fuel level value can be filtered. That is, the purpose of filtering is to reduce or even eliminate the error in the detection of the fuel level value, so that the calculation result of the fuel volume is more accurate. For example, when the vehicle is refueling, it is on a sloped ground. In this way, after the fuel level is detected by the level sensor in the fuel tank, it is filtered to avoid the influence of the slope causing the final fuel volume calculation to be too large. That is, the error in the fuel level detection caused by the slope is eliminated, thereby ensuring that the calculation result of the fuel volume is more accurate and reliable.

[0093] According to the fuel content calculation method of the flexible fuel vehicle of the embodiment of the present application, the reflux device is started to obtain the mixing ratio of the fuel through the fuel sensor configured in the engine fuel supply pipeline, and the content of each fuel in the fuel tank is obtained according to the total amount of fuel in the fuel tank and the mixing ratio, and then, the vehicle's driving range can be calculated in real time according to the content of each fuel in the fuel tank when the fuel is replenished or after the fuel is replenished. Compared with the prior art, when the vehicle is refueled, it is impossible to determine the proportion of each fuel in the fuel tank, and thus the driving range cannot be determined and the driving range display cannot be updated in time, and the driving range before the fuel is usually displayed, which causes user dissatisfaction and the user cannot intuitively feel the improvement in driving range. Compared with the prior art, when the vehicle is refueled, the driving range can be updated and displayed in time, so that the user can quickly and intuitively feel the improvement in driving range after the vehicle is refueled, thereby effectively improving the use experience of the vehicle.

[0094] Figure 5 FIG. 1 is a structural block diagram of a fuel content calculation system for a flexible fuel vehicle according to an embodiment of the present application. Figure 5 As shown, a fuel content calculation system for a flexible fuel vehicle according to an embodiment of the present application includes: an acquisition module 510, a total fuel amount determination module 520 and a content calculation module 530, wherein:

[0095] an acquisition module 510, for starting a reflux device to obtain a mixing ratio of the fuel detected by the fuel sensor, wherein the reflux device is used to control the fuel in the fuel tank to flow back to the fuel tank after passing through the fuel sensor located in the fuel supply line of the engine;

[0096] A fuel total amount determination module 520 is used to obtain the total amount of fuel in the fuel tank;

[0097] The content calculation module 530 is used to obtain the content of each fuel in the fuel tank according to the total amount of fuel in the fuel tank and the mixing ratio.

[0098] According to the fuel content calculation system of the flexible fuel vehicle of the embodiment of the present application, the reflux device is started to obtain the mixing ratio of the fuel through the fuel sensor configured in the engine fuel supply pipeline, and the content of each fuel in the fuel tank is obtained according to the total amount of fuel in the fuel tank and the mixing ratio, and then, the vehicle's driving range can be calculated in real time according to the content of each fuel in the fuel tank when the fuel is replenished or after the fuel is replenished. Compared with the prior art, when the vehicle is refueled, it is impossible to determine the proportion of each fuel in the fuel tank, so that the driving range cannot be determined and the driving range display cannot be updated in time, and the driving range before the fuel is usually displayed, which causes user dissatisfaction and the user cannot intuitively feel the improvement in driving range. Compared with the prior art, when the vehicle is refueled, the driving range can be updated and displayed in time, so that the user can quickly and intuitively feel the improvement in driving range after the vehicle is refueled, thereby effectively improving the use experience of the vehicle.

[0099] The specific definition of the fuel content calculation system for a flexible fuel vehicle can be found in the definition of the fuel content calculation method for a flexible fuel vehicle above, which will not be repeated here. The various modules of the above-mentioned fuel content calculation system for a flexible fuel vehicle can be implemented in whole or in part by software, hardware, and a combination thereof. The above-mentioned various modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above-mentioned various modules.

[0100] In one embodiment, a vehicle is provided, comprising: a fuel content calculation system for a flexible fuel vehicle according to any one of the above embodiments. The vehicle starts a reflux device to obtain a fuel mixing ratio through a fuel sensor configured in an engine fuel supply pipeline, and obtains the content of each fuel in the fuel tank according to the total amount of fuel in the fuel tank and the mixing ratio, and then, when the fuel is replenished or after the fuel is replenished, the vehicle's driving range can be calculated in real time according to the content of each fuel in the fuel tank. Compared with the prior art, when the vehicle is refueled, it is not possible to determine the proportion of each fuel in the fuel tank, so that the driving range cannot be determined and the driving range display cannot be updated in time, and the driving range before the fuel is usually displayed, which causes user dissatisfaction and the user cannot intuitively feel the improvement in driving range. When the vehicle is refueled, the driving range can be updated and displayed in time, so that the user can quickly and intuitively feel the improvement in driving range after the vehicle is refueled, thereby effectively improving the use experience of the vehicle.

[0101] In addition, other structures and functions of the vehicle according to the embodiment of the present application are known to ordinary technicians in the field and will not be elaborated here.

[0102] Reference below Figure 6 , Figure 6 A schematic diagram of the structure of a computer device suitable for implementing the embodiments of the present application is shown.

[0103] like Figure 6 As shown, the computer system includes a central processing unit (CPU) 1001, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 1002 or the program loaded from the storage part 1008 into the random access memory (RAM) 1003. In the RAM 1003, various programs and data required for the operation instructions of the system are also stored. The CPU 1001, the ROM 1002, and the RAM 1003 are connected to each other through a bus 1004. An input / output (I / O) interface 1005 is also connected to the bus 1004.

[0104] The following components are connected to the I / O interface 1005: an input section 1006 including a keyboard, a mouse, etc.; an output section 1007 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN card, a modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. A drive 1010 is also connected to the I / O interface 1005 as needed. A removable medium 1011, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 1010 as needed, so that a computer program read therefrom is installed into the storage section 1008 as needed.

[0105] In particular, according to an embodiment of the present application, the above reference flow chart Figure 1 The described process can be implemented as a computer software program. For example, a computer program product is included in an embodiment of the present application, which includes a computer program carried on a computer readable medium, and the computer program includes a program code for executing the method shown in the flow chart. In such an embodiment, the computer program includes a program code for executing the method shown in the flow chart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 1009, and / or installed from the removable medium 1011. When the computer program is executed by the central processing unit (CPU) 1001, the above-mentioned functions defined in the system of the present application are executed.

[0106] It should be noted that the computer-readable medium shown in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium such as a computer-readable storage medium that can send, propagate or transmit a program for use by or in conjunction with an instruction execution system, device or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0107] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operating instructions of the system, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the aforementioned module, a program segment or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, the boxes represented by two connections can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operating instruction, or can be implemented with a combination of dedicated hardware and computer instructions.

[0108] The units or modules involved in the embodiments described in the present application may be implemented by software or hardware. The units or modules described may also be arranged in a processor. The names of these units or modules do not, in some cases, constitute limitations on the units or modules themselves.

[0109] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A method for calculating the fuel content of a flexible fuel vehicle, characterized in that: include: Starting a reflux device to obtain a mixing ratio of the fuel detected by the fuel sensor, wherein the reflux device is used to control the fuel in the fuel tank to flow back to the fuel tank after passing through the fuel sensor located in the fuel supply line of the engine; obtaining the total amount of fuel in the fuel tank; The content of each fuel in the fuel tank is obtained according to the total amount of fuel in the fuel tank and the mixing ratio.

2. The method for calculating the fuel content of a flexible fuel vehicle according to claim 1, characterized in that: The activation time of the reflux device includes the process of refueling the vehicle and after the refueling of the vehicle is completed. During the process of refueling the vehicle, the reflux device is started to obtain the mixing ratio variation trend of the fuel detected by the fuel sensor; Determining the type of supplementary fuel according to a variation trend of the mixing ratio of the fuel; The content of each fuel during the refueling process is obtained according to the refueling type, the first total amount of fuel in the fuel tank before refueling, and the first mixing ratio.

3. The method for calculating the fuel content of a flexible fuel vehicle according to claim 2, characterized in that: The step of obtaining the content of each fuel in the refueling process according to the refueling type, the total amount of the first fuel in the fuel tank before refueling, and the first mixing ratio includes: obtaining a first total amount of fuel and a first mixing ratio in the fuel tank before refueling; According to the first fuel total amount and the first mixing ratio, the content of each fuel before refueling is obtained; determining a target fuel according to the type of supplemental fuel; The content of the target fuel during the refueling process is obtained based on the first total amount of fuel, the total amount of fuel in the fuel tank during the refueling process, and the content of the target fuel before the refueling process, and the content of the fuel other than the target fuel before the refueling process is used as the content of the corresponding fuel during the refueling process.

4. The method for calculating the fuel content of a flexible fuel vehicle according to claim 2 or 3, characterized in that: In the process of refueling the vehicle, before starting the reflux device and obtaining the mixing ratio change trend of the fuel detected by the fuel sensor, the method further includes: detecting a state of a fuel cap of the fuel tank; If the fuel port cover is in an open state, determining whether the fuel filling mark is set; If yes, it is determined that the vehicle is in the process of refueling.

5. The method for calculating the fuel content of a flexible fuel vehicle according to claim 2, characterized in that: After the vehicle is refueled, the reflux device is activated to obtain a second mixing ratio of the fuel detected by the fuel sensor; obtaining the total amount of fuel in the fuel tank after refueling is completed; The content of each fuel after the refueling is completed is obtained according to the total amount of fuel in the fuel tank after the refueling is completed and the second mixing ratio.

6. The method for calculating the fuel content of a flexible fuel vehicle according to claim 5, characterized in that: After the vehicle is refueled, before the reflux device is started and the second mixing ratio of the fuel detected by the fuel sensor is obtained, the method further includes: detecting a state of a fuel cap of the fuel tank; If the fuel port cover is changed from an open state to a closed state, determining whether the fuel filling mark is reset; If yes, it is determined that the vehicle refueling is complete.

7. The method for calculating the fuel content of a flexible fuel vehicle according to claim 1 or 5, characterized in that: Also includes: After a predetermined time from the engine start, obtaining a third mixing ratio of the fuel detected by the fuel sensor; The content of each fuel in the fuel tank is obtained according to the third mixing ratio.

8. The method for calculating the fuel content of a flexible fuel vehicle according to claim 1, characterized in that: Also includes: The driving range of the vehicle is obtained according to the content of each fuel and the energy consumption value corresponding to each fuel.

9. A fuel content calculation system for a flexible fuel vehicle, characterized in that: include: an acquisition module, used for starting a reflux device to obtain a mixing ratio of the fuel detected by the fuel sensor, wherein the reflux device is used for controlling the fuel in the fuel tank to flow back to the fuel tank after passing through the fuel sensor located in the fuel supply line of the engine; A fuel total amount determination module, used to obtain the total amount of fuel in the fuel tank; The content calculation module is used to obtain the content of each fuel in the fuel tank according to the total amount of fuel in the fuel tank and the mixing ratio.

10. A vehicle, characterized in that: include: The fuel content calculation system for a flexible fuel vehicle according to claim 9.

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