Method and device for determining a vehicle's coasting mode

Abstract

The present invention discloses a method and device for determining a vehicle's glide mode. The method includes: upon detecting a vehicle downhill event, determining a first energy loss in a first glide mode based on downhill information; the first energy includes mechanical energy; determining a second energy loss in a second glide mode; the second energy includes mechanical energy and fuel consumption; and determining the vehicle's glide mode based on the first and second energies. By implementing the technical solutions provided in the embodiments of the present invention, energy loss during a vehicle's downhill journey can be reduced, thereby improving the vehicle's fuel economy.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile energy consumption, and in particular to a method and device for determining a coasting mode of a vehicle. Background Art

[0002] For automatic transmission vehicles, when driving downhill, drivers typically coast in gear or in neutral. Coasting in gear causes a certain amount of kinetic energy loss due to the added resistance of the engine in the mechanical system. Coasting in neutral reduces mechanical resistance, minimizing kinetic energy loss. However, the engine remains idling, so fuel consumption still occurs.

[0003] The prior art does not provide an effective solution for determining the coasting mode of a vehicle during a downhill process, resulting in the vehicle's energy consumption during the downhill process not being guaranteed to be minimal, and the purpose of economical energy saving cannot be achieved. Summary of the Invention

[0004] The embodiments of the present invention provide a method and device for determining a glide mode of a vehicle, which can reduce the energy loss of the vehicle during a downhill process and improve the fuel economy of the vehicle.

[0005] According to one aspect of the present invention, a method for determining a glide mode of a vehicle is provided, the method comprising: when a downhill event of the vehicle is detected, determining a first energy lost by the vehicle in a first glide mode according to downhill information; the first energy comprises mechanical energy;

[0006] determining a second energy lost by the vehicle in the second coasting mode, wherein the second energy includes mechanical energy and fuel energy consumption;

[0007] A glide mode of the vehicle is determined according to the first energy and the second energy.

[0008] According to another aspect of the present invention, a device for determining a coasting mode of a vehicle is provided, the device comprising: a first energy determination module configured to determine, when a downhill event of the vehicle is detected, a first energy lost by the vehicle in a first coasting mode based on downhill information; the first energy comprising mechanical energy;

[0009] a second energy determination module, configured to determine a second energy lost by the vehicle in the second coasting mode; the second energy comprising mechanical energy and fuel energy consumption;

[0010] The glide mode determination module is configured to determine a glide mode of the vehicle according to the first energy and the second energy.

[0011] According to another aspect of the present invention, an electronic device is provided, comprising:

[0012] at least one processor; and

[0013] a memory communicatively connected to the at least one processor; wherein,

[0014] The memory stores a computer program that can be executed by the at least one processor. The computer program is executed by the at least one processor to enable the at least one processor to perform the method for determining the glide mode of a vehicle according to any embodiment of the present invention.

[0015] The technical solution of an embodiment of the present invention, when a vehicle downhill event is detected, determines a first energy loss of the vehicle in a first coasting mode based on the downhill information; the first energy includes mechanical energy; determines a second energy loss of the vehicle in a second coasting mode; the second energy includes mechanical energy and fuel consumption; and determines the vehicle's coasting mode based on the first and second energies. By implementing the technical solution provided by an embodiment of the present invention, energy loss during a vehicle downhill can be reduced, thereby improving the vehicle's fuel economy.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a flow chart of a method for determining a glide mode of a vehicle provided by an embodiment of the present invention;

[0019] Figure 2 1 is a schematic structural diagram of a device for determining a glide mode of a vehicle provided by an embodiment of the present invention;

[0020] Figure 3 It is a structural diagram of an electronic device for implementing the method for determining the glide mode of a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] Figure 1 This is a flow chart of a method for determining a vehicle's glide mode provided by an embodiment of the present invention. The method is applied to a scenario in which a vehicle's glide mode is determined during a downhill slope. The method can be executed by a vehicle's glide mode determination device. The vehicle's glide mode determination device can be implemented in the form of hardware and / or software. The vehicle's glide mode determination device can be configured in an electronic device for determining a vehicle's glide mode. Figure 1 As shown, the method includes:

[0024] S110: When a downhill event of the vehicle is detected, determining a first energy lost by the vehicle in the first coasting mode according to downhill information.

[0025] The first energy includes mechanical energy.

[0026] The first coasting mode can be configured as needed, for example, it can be a gear-engaged coasting mode. The downhill slope information can also be configured as needed, for example, it can be the downhill gradient or the downhill length. Since gear-engaged coasting consumes mechanical energy, i.e., the first energy, when a vehicle downhill event is detected, this solution can determine the first energy lost by the vehicle in the first coasting mode based on the downhill slope information. Mechanical energy can be determined by the sum of the vehicle's air resistance, rolling resistance, kinetic energy, and acceleration resistance.

[0027] In this embodiment, optionally, before determining the first energy lost by the vehicle in the first gliding mode based on the downhill information, the method further includes: determining map information of a preset distance, and determining the slope length and slope based on the map information; determining the first energy lost by the vehicle in the first gliding mode based on the downhill information includes: determining the first energy lost by the vehicle in the first gliding mode based on the slope length and the slope.

[0028] The preset distance can be set according to actual needs, for example, 2 km. This solution can determine the map information sent by the TBOX controller, determine the slope and length of the downhill slope based on the map information, and then determine the first energy lost by the vehicle in the first coasting mode or the second energy lost by the vehicle in the second coasting mode based on the slope length and slope.

[0029] Thus, by determining map information of a preset distance, determining the length and gradient of the slope based on the map information, and determining the first energy lost by the vehicle in the first coasting mode based on the length and gradient of the slope, it is possible to determine the gradient information based on the map information, thereby providing a reliable data source for subsequent steps.

[0030] In this embodiment, optionally, the first coasting mode includes a coasting mode with gear; determining the first energy lost by the vehicle in the first coasting mode based on the slope length and slope, including: determining the first energy lost by the vehicle in the coasting mode with gear based on air resistance energy, rolling resistance energy, kinetic energy and acceleration resistance energy lost by the vehicle in the coasting mode with gear; the kinetic energy is determined based on the starting downhill speed of the vehicle in the coasting mode with gear and the ending downhill speed of the vehicle in the coasting mode with gear; the acceleration resistance energy is determined based on the slope length, the vehicle mass, the mass conversion coefficient of the vehicle in the coasting mode with gear and the downhill acceleration of the vehicle in the coasting mode with gear.

[0031] Exemplarily, the first energy lost by the vehicle in the first coasting mode may be determined based on the following formula:

[0032] in, represents the kinetic energy of the vehicle in the coasting mode, Q1 represents the first energy, V1 represents the speed of the vehicle at the bottom of the slope in the first coasting mode, V0 represents the speed of the vehicle at the top of the slope, Q w represents the air resistance of the vehicle in the first glide mode, Q f represents the rolling resistance energy of the vehicle in the first coasting mode, δ1 represents the mass conversion coefficient of the vehicle in the first coasting mode, m represents the mass of the vehicle, a1 represents the acceleration of the vehicle in the first coasting mode, and L represents the slope length.

[0033] Therefore, by determining the first energy lost by the vehicle in the coasting mode with gear based on the air resistance energy, rolling resistance energy, kinetic energy and acceleration resistance energy lost by the vehicle in the coasting mode with gear, the energy consumed by the vehicle in the first coasting mode can be determined, providing a reliable data source for subsequent steps.

[0034] S120: Determine the second energy lost by the vehicle in the second coasting mode.

[0035] The second energy includes mechanical energy and fuel energy consumption.

[0036] The second coasting mode can be set as needed, for example, to a neutral coasting mode. This solution can determine the second energy lost by the vehicle in the second coasting mode based on slope information, including mechanical energy and fuel consumption. Mechanical energy can be determined by the sum of the vehicle's air resistance, rolling resistance, kinetic energy, and acceleration resistance. Fuel consumption can be determined based on idle fuel consumption, mechanical energy provided per liter of fuel, and the duration of the vehicle's downhill descent in neutral coasting mode.

[0037] In one feasible embodiment, optionally, the second gliding mode includes a neutral gliding mode; determining the second energy lost by the vehicle in the neutral gliding mode includes: determining the second energy lost by the vehicle in the neutral gliding mode based on the air resistance energy, rolling resistance energy, kinetic energy, acceleration resistance energy and fuel energy consumption lost by the vehicle in the neutral gliding mode; the kinetic energy is determined according to the starting downhill speed of the vehicle in the neutral gliding mode and the ending downhill speed of the vehicle in the neutral gliding mode; the acceleration resistance energy is determined according to the slope length, the vehicle mass, the mass conversion coefficient of the vehicle in the neutral gliding mode and the downhill acceleration of the vehicle in the neutral gliding mode; the fuel energy consumption is determined according to the mechanical energy provided by the fuel, the idle fuel consumption and the downhill duration of the vehicle in the neutral gliding mode.

[0038] The second energy lost by the vehicle in the second coasting mode can be determined based on the following formula:

[0039] in, represents the kinetic energy lost by the vehicle in neutral coasting mode, k·J·t represents the fuel consumption lost by the vehicle in neutral coasting mode, Q2 represents the second energy, V2 represents the speed at which the vehicle reaches the bottom of the slope in the second coasting mode, which is approximately equal to V1. V0 represents the speed of the vehicle at the top of the slope, Q w Indicates the air resistance of the vehicle in the second glide mode, Q frepresents the rolling resistance of the vehicle in the second coasting mode, δ2 represents the vehicle's mass conversion factor in the second coasting mode, m represents the vehicle's mass, and a represents the vehicle's acceleration in the second coasting mode, which is approximately equal to a1. L represents the slope length, k represents the mechanical energy provided per liter of fuel, J represents the idle fuel consumption (L / s), and t represents the duration of the vehicle's downhill descent in neutral coasting mode.

[0040] Therefore, by determining the second energy lost by the vehicle in neutral gliding mode based on the air resistance energy, rolling resistance energy, kinetic energy, acceleration resistance energy and fuel energy consumption lost by the vehicle in neutral gliding mode, the energy consumed by the vehicle in the first gliding mode can be determined, providing a reliable data source for subsequent steps.

[0041] In another feasible embodiment, optionally, the downhill acceleration of the vehicle in the neutral coasting mode is determined based on the following formula:

[0042]

[0043] Where, f represents the rolling resistance coefficient of the vehicle; a represents the downhill acceleration of the vehicle in neutral coasting mode; G represents the gravity of the vehicle; C D represents the air resistance coefficient; A represents the frontal area; δ2 represents the mass conversion coefficient of the vehicle in neutral coasting mode; m represents the vehicle mass; V0 represents the starting downhill speed of the vehicle in neutral coasting mode; x represents the downhill slope.

[0044] Among them, after determining the second energy Q2 lost by the vehicle in the second gliding mode and the first energy Q1 lost in the first gliding mode, this scheme can subtract the second energy Q2 from the first energy Q1 to obtain an energy difference w, w = k·J·t-(δ2-δ1)·m·a·L.

[0045] Therefore, by determining the downhill acceleration of the vehicle in neutral coasting mode, the difference in energy loss in different coasting modes when the vehicle coasts downhill can be determined, the coasting mode of the vehicle when coasting downhill can be determined, and energy can be saved.

[0046] S130: Determine a glide mode of the vehicle based on the first energy and the second energy.

[0047] In this embodiment, optionally, determining the glide mode of the vehicle according to the first energy and the second energy includes: determining the glide mode of the vehicle according to an energy difference between the first energy and the second energy.

[0048] For example, this solution can calculate the difference between the first energy and the second energy determined in the previous step, and determine the vehicle's selected downhill mode based on the difference. For example, if the first energy is greater than the second energy, it indicates that the vehicle consumes more energy in the first coasting mode, and the vehicle adopts the second coasting mode when going downhill. If the first energy is less than the second energy, it indicates that the vehicle consumes less energy in the first coasting mode, and the vehicle adopts the first coasting mode when going downhill.

[0049] Thus, by determining the glide mode of the vehicle according to the energy difference between the first energy and the second energy, the glide mode of the vehicle when glide downhill can be determined, thereby saving energy.

[0050] In this embodiment, optionally, the glide mode of the vehicle is determined based on the energy difference between the first energy and the second energy, including: if the energy difference is greater than a preset threshold, determining that the glide mode of the vehicle is the second glide mode; if the energy difference is less than the preset threshold, determining that the glide mode of the vehicle is the first glide mode; if the energy difference is equal to the preset threshold, determining that the glide mode of the vehicle is the glide mode adopted when the vehicle is going downhill.

[0051] The preset threshold value can be set according to actual needs, for example, to 0. In this solution, if the difference between the first and second energies is determined to be greater than the preset threshold value, it indicates that the vehicle consumes more energy in the first coasting mode and the vehicle adopts the second coasting mode for downhill travel. In this solution, if the difference between the first and second energies is determined to be less than the preset threshold value, it indicates that the vehicle consumes more energy in the second coasting mode and the vehicle adopts the first coasting mode for downhill travel. If the first and second energies are equal, it indicates that the vehicle consumes the same amount of energy in both coasting modes and the vehicle can continue to adopt the downhill coasting mode.

[0052] Thus, by determining the glide mode of the vehicle according to the energy difference between the first energy and the second energy, the glide mode of the vehicle when glide downhill can be determined, thereby saving energy.

[0053] The technical solution provided by an embodiment of the present invention, when a vehicle downhill event is detected, determines a first energy loss of the vehicle in a first coasting mode based on the downhill information; the first energy includes mechanical energy; determines a second energy loss of the vehicle in a second coasting mode; the second energy includes mechanical energy and fuel consumption; and determines the vehicle's coasting mode based on the first and second energies. By implementing the technical solution provided by an embodiment of the present invention, energy loss during downhill driving can be reduced, thereby improving the vehicle's fuel economy.

[0054] Figure 2 FIG. 1 is a schematic diagram of the structure of a device for determining a glide mode of a vehicle provided by an embodiment of the present invention. Figure 2 As shown, the device includes:

[0055] A first energy determination module 210 is configured to determine, when a downhill event of the vehicle is detected, a first energy lost by the vehicle in the first coasting mode according to downhill information; the first energy includes mechanical energy;

[0056] A second energy determination module 220 is configured to determine a second energy lost by the vehicle in the second coasting mode; the second energy includes mechanical energy and fuel energy consumption;

[0057] The glide mode determination module 230 is configured to determine a glide mode of the vehicle according to the first energy and the second energy.

[0058] Optionally, the glide mode determination module 230 is specifically configured to determine the glide mode of the vehicle according to the energy difference between the first energy and the second energy.

[0059] Optionally, the glide mode determination module 230 is specifically used to determine that the glide mode of the vehicle is the second glide mode if the energy difference is greater than a preset threshold; determine that the glide mode of the vehicle is the first glide mode if the energy difference is less than the preset threshold; and determine that the glide mode of the vehicle is the glide mode used when the vehicle is going downhill if the energy difference is equal to the preset threshold.

[0060] Optionally, the device also includes a slope length and slope determination module, which is used to determine map information of a preset distance before determining the first energy lost by the vehicle in the first gliding mode based on downhill information, and determine the slope length and slope based on the map information; a first energy determination module 210, specifically used to determine the first energy lost by the vehicle in the first gliding mode based on the slope length and the slope.

[0061] Optionally, the first coasting mode includes a coasting mode with gear; the first energy determination module 210 is specifically used to determine the first energy lost by the vehicle in the coasting mode with gear based on the air resistance energy, rolling resistance energy, kinetic energy and acceleration resistance energy lost by the vehicle in the coasting mode with gear; the kinetic energy is determined according to the starting downhill speed of the vehicle in the coasting mode with gear and the ending downhill speed of the vehicle in the coasting mode with gear; the acceleration resistance energy is determined according to the slope length, the vehicle mass, the mass conversion coefficient of the vehicle in the coasting mode with gear and the downhill acceleration of the vehicle in the coasting mode with gear.

[0062] Optionally, the second gliding mode includes a neutral gliding mode; a second energy determination module 220 is specifically used to determine the second energy lost by the vehicle in the neutral gliding mode based on the air resistance energy, rolling resistance energy, kinetic energy, acceleration resistance energy and fuel energy consumption lost by the vehicle in the neutral gliding mode; the kinetic energy is determined according to the starting downhill speed of the vehicle in the neutral gliding mode and the ending downhill speed of the vehicle in the neutral gliding mode; the acceleration resistance energy is determined according to the slope length, the vehicle mass, the mass conversion coefficient of the vehicle in the neutral gliding mode and the downhill acceleration of the vehicle in the neutral gliding mode; the fuel energy consumption is determined according to the mechanical energy provided by the fuel, the idle fuel consumption and the downhill duration of the vehicle in the neutral gliding mode.

[0063] Optionally, the downhill acceleration of the vehicle in neutral coasting mode is determined based on the following formula:

[0064]

[0065] Where, f represents the rolling resistance coefficient of the vehicle; a represents the downhill acceleration of the vehicle in neutral coasting mode; G represents the gravity of the vehicle; C D represents the air resistance coefficient; A represents the frontal area; δ2 represents the mass conversion coefficient of the vehicle in neutral coasting mode; m represents the vehicle mass; V0 represents the starting downhill speed of the vehicle in neutral coasting mode; x represents the downhill slope.

[0066] The device for determining the glide mode of a vehicle provided in an embodiment of the present invention can execute the method for determining the glide mode of a vehicle provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0067] Figure 3 A schematic diagram of the structure of an electronic device 30 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0068] like Figure 3As shown, the electronic device 30 includes at least one processor 31 and a memory, such as a read-only memory (ROM) 32, a random access memory (RAM) 33, etc., which is communicatively connected to the at least one processor 31. The memory stores a computer program that can be executed by the at least one processor. The processor 31 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 32 or the computer program loaded from the storage unit 38 into the random access memory (RAM) 33. Various programs and data required for the operation of the electronic device 30 can also be stored in the RAM 33. The processor 31, ROM 32, and RAM 33 are connected to each other via a bus 34. An input / output (I / O) interface 35 is also connected to the bus 34.

[0069] Multiple components in the electronic device 30 are connected to the I / O interface 35, including an input unit 36, such as a keyboard, a mouse, etc.; an output unit 37, such as various types of displays, speakers, etc.; a storage unit 38, such as a magnetic disk, an optical disk, etc.; and a communication unit 39, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 39 allows the electronic device 30 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0070] Processor 31 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of processor 31 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any other suitable processor, controller, microcontroller, etc. Processor 31 executes the various methods and processes described above, such as the method for determining the vehicle's glide mode.

[0071] In some embodiments, the method for determining the glide mode of a vehicle may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 30 via ROM 32 and / or communication unit 39. When the computer program is loaded into RAM 33 and executed by processor 31, one or more steps of the method for determining the glide mode of a vehicle described above may be performed. Alternatively, in other embodiments, processor 31 may be configured to execute the method for determining the glide mode of a vehicle in any other suitable manner (e.g., via firmware).

[0072] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0073] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0074] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0075] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0076] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0077] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0078] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0079] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A method for determining a glide mode of a vehicle, characterized in that: include: When a downhill event of the vehicle is detected, determining a first energy lost by the vehicle in the first coasting mode according to downhill information; The first energy includes mechanical energy; determining a second energy lost by the vehicle in the second coasting mode; The second energy includes mechanical energy and fuel energy consumption; Determining a glide mode of the vehicle according to an energy difference between the first energy and the second energy includes: If the energy difference is greater than zero, determining that the glide mode of the vehicle is a second glide mode; wherein the second glide mode is a neutral glide mode; If the energy difference is less than zero, determining that the coasting mode of the vehicle is a first coasting mode; wherein the first coasting mode is a gear-engaged coasting mode; If the energy difference is zero, it is determined that the coasting mode of the vehicle is the coasting mode adopted when the vehicle is going downhill.

2. The method according to claim 1, characterized in that Before determining the first energy lost by the vehicle in the first coasting mode according to the downhill slope information, the method further includes: Determining map information of a preset distance, and determining a slope length and a slope gradient based on the map information; Determining a first energy lost by the vehicle in the first coasting mode according to downhill slope information includes: A first energy lost by the vehicle in a first coasting mode is determined according to the slope length and the slope.

3. The method according to claim 2, characterized in that ； Determining a first energy lost by the vehicle in a first coasting mode according to the slope length and the slope includes: determining a first energy lost by the vehicle in the coasting mode based on air resistance energy, rolling resistance energy, kinetic energy, and acceleration resistance energy lost by the vehicle in the coasting mode; The kinetic energy is determined based on the vehicle's starting downhill speed in the coasting mode with gear and the vehicle's ending downhill speed in the coasting mode with gear; the acceleration resistance can be determined based on the slope length, the vehicle mass, the vehicle's mass conversion coefficient in the coasting mode with gear, and the vehicle's downhill acceleration in the coasting mode with gear.

4. The method according to claim 3, characterized in that ； Determine the secondary energy lost by the vehicle in neutral coasting mode, including: The second energy lost by the vehicle in neutral coasting mode is determined based on the air resistance energy, rolling resistance energy, kinetic energy, acceleration resistance energy and fuel energy consumption lost by the vehicle in neutral coasting mode; the kinetic energy is determined according to the starting downhill speed of the vehicle in neutral coasting mode and the ending downhill speed of the vehicle in neutral coasting mode; the acceleration resistance energy is determined according to the slope length, the vehicle mass, the mass conversion coefficient of the vehicle in neutral coasting mode and the downhill acceleration of the vehicle in neutral coasting mode; and the fuel energy consumption is determined according to the mechanical energy provided by the fuel, the idle fuel consumption and the downhill duration of the vehicle in neutral coasting mode.

5. The method according to claim 4, characterized in that The vehicle's downhill acceleration in neutral coasting mode is determined based on the following formula: Where, f represents the rolling resistance coefficient of the vehicle; a represents the downhill acceleration of the vehicle in neutral coasting mode; G represents the gravity of the vehicle; C D represents the air resistance coefficient; A represents the frontal area; δ2 represents the mass conversion coefficient of the vehicle in neutral coasting mode; m represents the vehicle mass; V0 represents the starting downhill speed of the vehicle in neutral coasting mode; x represents the downhill slope.

6. A device for determining a coasting mode of a vehicle, characterized in that: include: a first energy determination module, configured to determine, when a downhill event of the vehicle is detected, a first energy lost by the vehicle in the first coasting mode according to downhill information; The first energy includes mechanical energy; a second energy determination module, configured to determine a second energy lost by the vehicle in the second coasting mode; the second energy comprising mechanical energy and fuel energy consumption; a glide mode determination module, configured to determine a glide mode of the vehicle according to the first energy and the second energy; The glide mode determination module is specifically configured to: If the energy difference is greater than zero, determining that the glide mode of the vehicle is a second glide mode; wherein the second glide mode is a neutral glide mode; If the energy difference is less than zero, determining that the coasting mode of the vehicle is a first coasting mode; wherein the first coasting mode is a gear-engaged coasting mode; If the energy difference is zero, it is determined that the coasting mode of the vehicle is the coasting mode adopted when the vehicle is going downhill.

7. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the method for determining the glide mode of a vehicle according to any one of claims 1 to 5.

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