Method and device for processing low fuel level of vehicle, electronic equipment and storage medium

By adjusting the drive mode and energy recovery method of hybrid vehicles, the range problem when the fuel level is low has been solved, and the range has been extended under low fuel conditions.

CN119773721BActive Publication Date: 2025-12-19WEICHAI POWER CO LTD +1
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202510087913.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-12-19
Estimated Expiration
2045-01-20

AI Technical Summary

Technical Problem

Hybrid vehicles often experience engine limitations when the fuel level is low, preventing the driver from refueling in time. This can lead to the electric motor running out of power and the vehicle breaking down.

Method used

By dynamically adjusting the drive mode to engine or electric motor drive based on fuel level and battery status, performing braking energy recovery and coasting energy recovery, controlling the enabling status of high-voltage electrical components, and optimizing energy use to extend driving range.

Benefits of technology

When the fuel level is low, it extends the vehicle's driving time and range, preventing the vehicle from breaking down due to running out of fuel and electricity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119773721B_ABST
    Figure CN119773721B_ABST
Patent Text Reader

Abstract

The present disclosure provides a vehicle low fuel level processing method and device, electronic equipment and storage medium, and relates to the technical field of vehicles. The method comprises: determining the driving mode as an engine driving mode or a motor driving mode according to the size relationship between the current fuel level and the fuel depletion position of the vehicle, determining whether to perform brake energy recovery, whether to perform coasting energy recovery, and determining the components enabled by high-voltage electricity of the vehicle. The present disclosure can prolong the endurance time and improve the endurance mileage in the case of low fuel level.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicles, and in particular to a vehicle low fuel level processing method and device, electronic equipment and storage medium. BACKGROUND

[0002] The hybrid structure vehicle, i.e. the hybrid power structure vehicle, has three driving modes: engine driving, motor driving and hybrid driving.

[0003] When the fuel level is very low, the engine driving is limited until it cannot drive. At this time, if the driver is far away from the gas station and cannot refuel, the motor is quickly driven to run out of power without taking appropriate measures, and the vehicle is stranded. SUMMARY

[0004] Therefore, the purpose of the present disclosure is to provide a vehicle low fuel level processing method, device, electronic equipment and storage medium, which can solve the existing problems.

[0005] To achieve the above purpose, in a first aspect, the present disclosure provides a vehicle low fuel level processing method for a hybrid structure vehicle, which comprises: determining whether the driving mode is an engine driving mode or a motor driving mode according to the size relationship between the current fuel level and the fuel depletion position of the vehicle, determining whether to perform brake energy recovery, whether to perform coasting energy recovery, and determining the components enabled by high-voltage power of the vehicle.

[0006] In a second aspect, a vehicle low fuel level processing device for a hybrid structure vehicle is also provided, which comprises: determining whether the driving mode is an engine driving mode or a motor driving mode according to the size relationship between the current fuel level and the fuel depletion position of the vehicle, determining whether to perform brake energy recovery, whether to perform coasting energy recovery, and determining the components enabled by high-voltage power of the vehicle.

[0007] In a third aspect, an electronic equipment is also provided, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the method of the first aspect.

[0008] In a fourth aspect, a computer readable storage medium is also provided, which stores a computer program executable by a processor to implement the method of any one of the first aspect.

[0009] In a fifth aspect, a computer program product is also provided, which comprises a computer program executable by a processor to implement the method of any one of the first aspect.

[0010] In general, the present disclosure has at least the following beneficial effects: the cruising time and cruising distance can be prolonged in the case of low fuel level. BRIEF DESCRIPTION OF DRAWINGS

[0011] In the drawings, like reference numerals refer to same or similar components throughout the several views. These drawings are not necessarily to scale. It should be understood that these drawings only depict some embodiments in accordance with the disclosure and should not be considered to be limiting of the scope of the disclosure.

[0012] Figure 1 A flow chart of a method for processing low fuel level of a vehicle is shown according to an embodiment of the present disclosure;

[0013] Figure 2 A schematic diagram of a device for processing low fuel level of a vehicle is shown according to an embodiment of the present disclosure;

[0014] Figure 3 A schematic diagram of an electronic device is shown according to an embodiment of the present disclosure;

[0015] Figure 4 A schematic diagram of a storage medium is shown according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0016] The present disclosure will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not to be limiting of the present disclosure. Furthermore, it should be understood that the drawings are not necessarily to scale.

[0017] It should be noted that the embodiments and features of the embodiments in the present disclosure can be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 A method for processing low fuel level of a vehicle is shown according to the present disclosure. In an embodiment of the present disclosure, for a vehicle with a hybrid structure, the method comprises: determining whether the driving mode is an engine driving mode or a motor driving mode according to the size relationship between the current fuel level and the fuel depletion position of the vehicle, determining whether to perform brake energy recovery, whether to perform coasting energy recovery, and determining the components enabled by high-voltage electricity of the vehicle.

[0019] In some optional implementations of any of the embodiments of the present disclosure, the determining the driving mode as the engine driving mode or the motor driving mode according to the size relationship between the current fuel level of the vehicle and the fuel depletion position comprises: if the current fuel level of the vehicle is between the warning position and the fuel depletion position, the engine driving mode is adopted.

[0020] The warning position refers to a fuel position at which the fuel level is low. The fuel depletion position refers to a position below or equal to which the engine cannot drive.

[0021] Optionally, in this implementation, it can be determined to perform the brake energy recovery and not to perform the coasting energy recovery.

[0022] Optionally, the high-voltage-enabled components of the vehicle are determined to include the DC-DC converter and the electric power steering system.

[0023] In some optional implementations of any of the embodiments of the present disclosure, the determining the driving mode as the engine driving mode or the motor driving mode according to the size relationship between the current fuel level of the vehicle and the fuel depletion position comprises: if the current fuel level of the vehicle is less than or equal to the fuel depletion position, the driving mode is determined as the engine driving mode or the motor driving mode according to the size relationship between the state of charge (SOC) of the vehicle and the charge depletion threshold.

[0024] Optionally, the determining the driving mode as the engine driving mode or the motor driving mode according to the size relationship between the state of charge (SOC) of the vehicle and the charge depletion threshold comprises: if the state of charge (SOC) of the vehicle is greater than or equal to the charge depletion threshold, the motor driving mode is adopted.

[0025] Optionally, the determining whether to perform the brake energy recovery and the coasting energy recovery comprises: determining to perform the brake energy recovery and not to perform the coasting energy recovery.

[0026] Optionally, the determining to perform the brake energy recovery comprises: if the state of charge of the vehicle is less than the full-charge state, the brake energy recovery is performed at the maximum capability.

[0027] Optionally, the determining the high-voltage-enabled components of the vehicle comprises: determining the high-voltage-enabled components of the vehicle to include the DC-DC converter and the electric power steering system.

[0028] The present disclosure provides another method for processing low fuel level of a vehicle according to an embodiment of the present disclosure. The method for processing low fuel level of a vehicle comprises:

[0029] When the fuel level r is rFuel1 (fuel depletion position) < r ≤ rFuel2 (warning position), the "fuel-saving, energy-saving, and energy-storage" mode is activated. In this mode, the electric motor is prohibited from participating in driving, and vehicle power generation is not enabled, but energy recovery is possible. To ensure range, only regenerative braking is allowed (as long as SOC < 100%, regenerative braking should be performed at maximum capacity), and regenerative braking is not allowed (considering the loss of kinetic energy converted to electrical energy and then back to kinetic energy, i.e., all energy is used for driving as much as possible, meaning the energy used for driving is greater than the energy threshold). High-voltage components only allow DC-DC converters and EPS to be enabled, while non-essential components such as air conditioning and heating are disconnected. Engine torque follows the economy curve.

[0030] When the fuel level r ≤ rFuel1, meaning the fuel level is close to 0, the following steps should be taken based on the battery SOC:

[0031] If SOC > rSOC (battery depletion threshold), meaning the battery is sufficiently charged, the system enters "energy-saving and fuel-free" mode. At this time, the clutch disengages, prohibiting engine drive. Only regenerative braking is permitted (as long as SOC < 100%, regenerative braking should be performed at maximum capacity). Regenerative braking during coasting is not permitted (considering the loss from converting kinetic energy to electrical energy and then back to kinetic energy, i.e., all energy is used for driving as much as possible). High-voltage components only allow DC-DC converters and EPS to be enabled, disconnecting the power of non-essential components such as air conditioning and heating.

[0032] If SOC ≤ rSOC, meaning the battery is almost depleted, the vehicle should not be driven.

[0033] When the fuel level is low, the vehicle will not generate electricity while driving; all remaining fuel will be used for propulsion, and the vehicle will enter power-saving mode. The electric motor will not participate in propulsion, and the high-voltage electricity will only be used for necessary auxiliary equipment such as DC-DC converters and EPS. Non-essential components such as air conditioning and heating will be disabled to prepare for pure electric drive when the fuel level drops to 0.

[0034] When the fuel level is close to 0, the engine becomes completely unusable and can only be driven electrically. At this point, the system should enter power-saving mode to allocate as much electrical power as possible for operation. High-voltage components should only enable the DC-DC converter and EPS, while disconnecting other functions such as air conditioning and heating. This operation can be performed by the HCU.

[0035] This disclosure provides a vehicle low-level fuel treatment apparatus, which is used to perform the vehicle low-level fuel treatment method described in the above embodiments, such as... Figure 2 As shown, the device includes: a determining unit 201, which determines the driving mode as engine driving mode or electric motor driving mode based on the relationship between the current fuel level and the fuel depletion position of the vehicle, determines whether to perform brake energy recovery and coasting energy recovery, and determines the components of the vehicle that are powered by high voltage electricity.

[0036] The vehicle low fuel level processing device provided by the above-mentioned embodiments of the present disclosure has the same beneficial effects as the method adopted, run or implemented by the application program stored therein.

[0037] The present disclosure also provides an electronic device corresponding to the vehicle low fuel level processing method provided by the above-mentioned embodiments, to execute the vehicle low fuel level processing method. The present disclosure is not limited.

[0038] Please refer to Figure 3 , which shows a schematic diagram of an electronic device provided by some embodiments of the present disclosure. As Figure 3 shown, the electronic device 30 includes a processor 300, a memory 301, a bus 302 and a communication interface 303, the processor 300, the communication interface 303 and the memory 301 are connected through the bus 302; the memory 301 stores a computer program executable on the processor 300, and the processor 300 executes the computer program to perform the method provided by any one of the above-mentioned embodiments of the present disclosure.

[0039] Among them, the memory 301 can contain a high-speed random access memory (RAM: Random Access Memory), and can also include a non-volatile memory, such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 303 (which can be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. can be used.

[0040] The bus 302 can be an ISA bus, a PCI bus or an EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. Among them, the memory 301 is used to store programs, and the processor 300 executes the programs after receiving execution instructions. The vehicle low fuel level processing method disclosed in any one of the above-mentioned embodiments of the present disclosure can be applied to the processor 300 or implemented by the processor 300.

[0041] The processor 300 can be an integrated circuit chip with a processing capability of signals. In the implementation process, each step of the above method can be completed by the integrated logic circuit of hardware in the processor 300 or the instruction in the form of software. The processor 300 described above can be a general processor, including a central processing unit (CPU), a network processor (NP), etc.; can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. Each method, step and logic block disclosed in the embodiment of the present disclosure can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiment of the present disclosure can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register or other mature storage medium in the art. The storage medium is located in the memory 301, and the processor 300 reads the information in the memory 301, and combines the hardware to complete the steps of the above method.

[0042] The electronic device provided by the embodiment of the present disclosure and the method for processing low fuel level of the vehicle provided by the embodiment of the present disclosure have the same beneficial effects as the method adopted, operated or implemented.

[0043] The embodiment of the present disclosure also provides a computer readable storage medium corresponding to the method for processing low fuel level of the vehicle provided by the preceding embodiment. Please refer to Figure 4 The computer readable storage medium shown in the figure is an optical disc 40, and a computer program (i.e. program product) is stored on the optical disc 40. When the processor runs the computer program, the method for processing low fuel level of the vehicle provided by any of the preceding embodiments is executed.

[0044] It should be noted that examples of the computer readable storage medium can also include, but are not limited to, a phase change memory (PRAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), other types of random access memory (RAM), a read only memory (ROM), an electrically erasable programmable read only memory (EEPROM), a flash memory or other optical, magnetic storage medium, which will not be described one by one here.

[0045] The computer readable storage medium provided by the above-mentioned embodiments of the present disclosure has the same beneficial effects as the method adopted, run or implemented by the application program stored therein.

[0046] It should be noted that:

[0047] It should be noted that:

[0047] The terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements recited, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be noted that the scope of the methods and apparatus of the present embodiments is not limited to performing functions in the order recited or discussed, but can include performing functions in a substantially simultaneous manner or in the reverse order to the described, for example, the described methods can be performed in a different order than described, and various steps can be added, omitted, or combined, in addition, features described with reference to certain examples can be combined in other examples.

[0048] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and the necessary general hardware platform, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes a number of instructions for making a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the methods described in various embodiments of the present disclosure.

[0049] The embodiments of the present disclosure are described above in conjunction with the accompanying drawings, which are merely specific embodiments of the present disclosure, but the present disclosure is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are merely illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present disclosure without departing from the scope of the present disclosure and the scope of protection of the claims.

Claims

1. A method of treating low level fuel in a vehicle, characterised in that, A vehicle for a hybrid structure, the method comprising: determining, according to a size relationship between a current fuel level and a fuel depletion position of the vehicle, whether a driving mode is an engine driving mode or a motor driving mode, whether to perform brake energy recovery, whether to perform coasting energy recovery, and components enabled by high voltage of the vehicle; the determining, according to the size relationship between the current fuel level and the fuel depletion position of the vehicle, whether the driving mode is the engine driving mode or the motor driving mode, comprises: if the current fuel level of the vehicle is between a warning position and the fuel depletion position, adopting the engine driving mode; the determining whether to perform the brake energy recovery, whether to perform the coasting energy recovery, comprises: determining to perform the brake energy recovery, and not performing the coasting energy recovery; the determining the components enabled by the high voltage of the vehicle, comprises: determining a DC-DC converter and an electric power steering system enabled by the high voltage of the vehicle.

2. The method of claim 1, wherein, the determining, according to the size relationship between the current fuel level and the fuel depletion position of the vehicle, whether the driving mode is the engine driving mode or the motor driving mode, comprises: if the current fuel level of the vehicle is less than or equal to the fuel depletion position, determining whether the driving mode is the motor driving mode according to a size relationship between a state of charge and a state of charge depletion threshold of the vehicle.

3. The method of claim 2, wherein, the determining, according to the size relationship between the state of charge and the state of charge depletion threshold of the vehicle, whether the driving mode is the engine driving mode or the motor driving mode, comprises: if the state of charge of the vehicle is greater than or equal to the state of charge depletion threshold, adopting the motor driving mode.

4. The method of claim 1, wherein, the determining to perform the brake energy recovery, comprises: if the state of charge of the vehicle is less than a full state of charge, performing the brake energy recovery at a maximum capacity.

5. A device for treating low level fuel in a vehicle, characterized in that A vehicle for a hybrid structure, the apparatus comprising: a determining unit configured to determine, according to a size relationship between a current fuel level and a fuel depletion position of the vehicle, whether a driving mode is an engine driving mode or a motor driving mode, whether to perform brake energy recovery, whether to perform coasting energy recovery, and components enabled by high voltage of the vehicle; the determining unit is further configured to perform the determining, according to the size relationship between the current fuel level and the fuel depletion position of the vehicle, whether the driving mode is the engine driving mode or the motor driving mode, in the following manner: if the current fuel level of the vehicle is between a warning position and the fuel depletion position, adopting the engine driving mode; the determining unit is further configured to perform the determining whether to perform the brake energy recovery, whether to perform the coasting energy recovery, in the following manner: determining to perform the brake energy recovery, and not performing the coasting energy recovery; the determining unit is further configured to perform the determining the components enabled by the high voltage of the vehicle, in the following manner: determining a DC-DC converter and an electric power steering system enabled by the high voltage of the vehicle.

6. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the computer program to implement the method of any one of claims 1-4.

7. A computer-readable storage medium having stored thereon a computer program, characterized in that The program is executed by a processor to implement the method of any one of claims 1-4.

Citation Information

Patent Citations

  • Method for improving distance to empty (DTE) of hybrid electric vehicle

    CN106541942A

  • Method for operating a hybrid vehicle

    US20110208378A1