Shift control method, device, vehicle, and storage medium

Abstract

The application discloses a gear shifting control method and device, a vehicle and a storage medium, and can acquire a historical downshift frequency of a target vehicle within a first preset time period; determines a power demand type of the target vehicle within the first preset time period based on the historical downshift frequency within the first preset time period; determines a gear shifting strategy of the target vehicle within a second preset time period according to the power demand type of the target vehicle within the first preset time period when the power demand type belongs to a preset demand type; and controls the target vehicle to shift gears according to the gear shifting strategy within the second preset time period, the second preset time period being later than the first preset time period. That is, the application can automatically adjust the gear shifting strategy according to the driving power demand of different vehicle drivers, so that the driver does not need to customize the driving power demand type before driving, and the vehicle gear shifting can also be accurately controlled, thereby effectively improving the fuel economy and power performance of the vehicle.

Description

Technical Field

[0001] This invention relates to automotive automatic transmission technology, and more particularly to a shift control method, device, vehicle, and storage medium. Background Technology

[0002] With the increasing prevalence of automatic transmission vehicles, the demands on automatic transmission shifting have also become more intelligent. Traditional automatic transmission vehicles require users to manually select a driving mode, and the system then uses a fixed set of shifting strategies based on the selected driving mode. This shifting method forces all users to use the same set of shifting strategies, resulting in poor compatibility with the specific driving needs of some users and an inability to adapt to the driving requirements of all users, leading to a poor driving experience for some. Summary of the Invention

[0003] This invention provides a shift control method, device, vehicle, and storage medium that can solve the problem of poor compatibility with the driving needs of special users.

[0004] In a first aspect, the gear shifting control method provided in the embodiments of the present invention includes:

[0005] Obtain the historical downshift frequency of the target vehicle within the first preset time period;

[0006] The power demand type of the target vehicle within the first preset time period is determined based on the historical downshift frequency within the first preset time period.

[0007] When the power demand type belongs to a preset demand type, the shifting strategy of the target vehicle in the second preset time period is determined according to the power demand type of the target vehicle in the first preset time period.

[0008] The target vehicle is controlled to shift gears according to the shifting strategy during the second preset time period, which is later than the first preset time period.

[0009] Secondly, the shift control device provided by the present invention includes:

[0010] The acquisition module is used to acquire the historical downshift frequency of the target vehicle within a first preset time period;

[0011] The first determining module is used to determine the power demand type of the target vehicle in the first preset time period based on the historical downshift frequency in the first preset time period.

[0012] The second determining module is used to determine the shifting strategy of the target vehicle in the second preset time period based on the power demand type of the target vehicle in the first preset time period when the power demand type belongs to the preset demand type.

[0013] The control module is used to control the target vehicle to shift gears according to the shifting strategy during the second preset time period, wherein the second preset time period is later than the first preset time period.

[0014] Thirdly, the vehicle provided by the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the shift control method described in any embodiment of the present invention.

[0015] Fourthly, the present invention provides a computer-readable storage medium having a computer program stored thereon, characterized in that the program, when executed by a processor, implements the shift control method described in any embodiment of the present invention.

[0016] The present invention provides a solution that allows obtaining the historical downshift frequency of a target vehicle within a first preset time period; determining the power demand type of the target vehicle within the first preset time period based on the historical downshift frequency; determining the shifting strategy of the target vehicle within a second preset time period based on the power demand type of the target vehicle within the first preset time period when the power demand type belongs to a preset demand type; and controlling the target vehicle to shift gears according to the shifting strategy within the second preset time period, where the second preset time period is later than the first preset time period. In other words, the present invention can determine the power demand type and shifting strategy of a vehicle within a future period based on the vehicle's historical downshift frequency and power demand type, and automatically adjust the shifting strategy according to the driving power demand of different drivers. This allows drivers to accurately control vehicle shifting without needing to customize their driving power demand type before driving, effectively improving the vehicle's fuel economy and power performance. Attached Figure Description

[0017] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1a This is a flowchart illustrating the shift control method provided by the present invention;

[0019] Figure 1b This invention provides a probability distribution chart of historical downgrade frequency.

[0020] Figure 2 This is another schematic flowchart of the shift control method provided by the present invention;

[0021] Figure 3 This is a schematic diagram of the shift control device provided by the present invention;

[0022] Figure 4 This is a structural schematic diagram of the vehicle provided by the present invention. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] Figure 1a This is a flowchart illustrating a shift control method provided by the present invention. This method can be executed by the shift control device provided in this embodiment. The device can be implemented using software and / or hardware. In a specific embodiment, the device can be integrated into a vehicle. (Reference) Figure 1a The method may specifically include the following steps:

[0026] Step 101: Obtain the historical downshift frequency of the target vehicle within the first preset time period.

[0027] Specifically, downshifting refers to changing a car's gear from a higher gear to a lower gear. This can increase engine speed and provide more power for situations requiring rapid acceleration or climbing. For example, downshifting from gear x to (x-1) involves 1 downshift, and downshifting from gear x to (x-2) involves 2 downshifts. However, frequent downshifting increases fuel consumption and engine wear, so proper downshifting control is crucial for any given vehicle.

[0028] Specifically, historical downshift frequency is an indicator that measures driving behavior, reflecting the average number of times a driver downshifts the vehicle within a preset time period, measured in times per hour. This indicator is primarily used to evaluate the fuel economy and safety of a driver's vehicle. Historical downshift frequency can help drivers adjust their driving behavior, reduce frequent downshifting, lower fuel consumption and vehicle wear, and improve driving safety and fuel economy.

[0029] Specifically, when controlling gear shifting for a particular vehicle, it is necessary to first obtain the historical downshifting frequency of the target vehicle within a first preset time period. This is to determine the driver's driving habits and power requirements, and then perform gear shifting control accordingly. The first preset time period can be set before the vehicle leaves the factory or customized by the user. For example, the first preset time period can be set to 100 hours.

[0030] Step 102: Determine the power demand type of the target vehicle within the first preset time period based on the historical downshift frequency within the first preset time period.

[0031] For example, power demand types can include economy demand, power demand, and general demand. A probability distribution chart can be generated based on the historical downshifting frequency of sample vehicles using big data statistics, such as... Figure 1b As shown, sample vehicles with a historical downshift frequency less than the first probability can be classified as economy-demand type, with the first probability being 10%. Sample vehicles with a historical downshift frequency greater than the second probability can be classified as power-demand type, with the second probability being greater than the first probability, for example, 90%. Sample vehicles with a downshift frequency between the first and second probabilities can be ordinary vehicles without special shifting requirements; when there are no special shifting control requirements, shifting control may not be performed. The sample vehicles may include target vehicles.

[0032] Step 103: When the power demand type belongs to the preset demand type, determine the shifting strategy of the target vehicle in the second preset time period based on the power demand type of the target vehicle in the first preset time period.

[0033] Specifically, the preset demand types include economic demand and power demand. When the power demand type is either economic demand or power demand, subsequent shift control is performed until the economic demand or power demand type is controlled to be ordinary demand, at which point shift control is no longer performed.

[0034] Specifically, when the target vehicle's power demand type is economy demand type during the first preset time period, the shifting strategy for the target vehicle during the economy demand type during the first preset time period is adjusted to obtain the shifting strategy for the second preset time period. When the target vehicle's power demand type is power demand type during the first preset time period, the shifting strategy for the target vehicle during the power demand type during the first preset time period is adjusted to obtain the shifting strategy for the second preset time period. For example, the second preset time period can be a different set period of time, or it can be the same as the first preset time period, which can be set to 100 hours.

[0035] Step 104: Control the target vehicle to shift gears according to the shifting strategy within the second preset time period, which is later than the first preset time period.

[0036] During the second preset time period, the target vehicle is subjected to corresponding gear shift control based on the gear shift strategy determined by the power demand type in the first preset time period to achieve the best driving effect. When the power demand type in the first preset time period is economy demand type, the gear shift strategy for the first preset time period is adjusted according to the economy adjustment gear shift strategy. When the power demand type in the first preset time period is power demand type, the gear shift strategy for the first preset time period is adjusted according to the power adjustment gear shift strategy.

[0037] The solution in this embodiment can obtain the historical downshift frequency of the target vehicle within a first preset time period; determine the power demand type of the target vehicle within the first preset time period based on the historical downshift frequency within the first preset time period; when the power demand type belongs to a preset demand type, determine the shifting strategy of the target vehicle within a second preset time period based on the power demand type of the target vehicle within the first preset time period; and control the target vehicle to shift gears according to the shifting strategy within the second preset time period, where the second preset time period is later than the first preset time period. In other words, this invention can determine the power demand type and shifting strategy of a vehicle within a future period based on the vehicle's historical downshift frequency and power demand type, and automatically adjust the shifting strategy according to the driving power demand of different drivers. This allows drivers to accurately control vehicle shifting without having to customize their driving power demand type before driving, effectively improving the vehicle's fuel economy and power performance.

[0038] The shift control method provided in this embodiment is further described below, such as... Figure 2 As shown, the shift control method may specifically include the following steps:

[0039] Step 210: Obtain the historical downshift frequency of the target vehicle within the first preset time period.

[0040] Specifically, before obtaining the historical downshift frequency of the target vehicle within a first preset time period, it is necessary to obtain the vehicle's driving data within that time period. This driving data may include information such as vehicle speed, engine speed, throttle opening, and timestamps. Based on this information, the historical downshift frequency of the target vehicle within the first preset time period is calculated. This data can be obtained through onboard sensors or vehicle-to-everything (V2X) networks.

[0041] After acquiring the vehicle's driving data, it needs to be preprocessed to calculate the historical downshift frequency. The main preprocessing steps include data cleaning, data integration, and data analysis. Data cleaning primarily removes outliers and erroneous data; data integration combines data from different sensors; and data analysis calculates the number of downshifts within each time period.

[0042] Step 220: Obtain the historical downshift frequency distribution data of the sample vehicles.

[0043] Specifically, in order to determine the preset correspondence between the frequency of each historical downshift and the type of power demand, it is necessary to first obtain a set of historical downshift frequency distribution data for sample vehicles. These sample vehicles should have similar models and driving conditions to the target vehicle to ensure the reliability of the sample data.

[0044] Specifically, the historical downshift frequency distribution data of the sample vehicles can be obtained through data mining techniques and statistical analysis methods. Specifically, sample data with similar vehicle models and driving conditions to the target vehicle can be randomly selected from a large-scale driving dataset, and the historical downshift frequency distribution data can be obtained by analyzing these sample data.

[0045] Step 230: Determine the preset correspondence between each historical downshift frequency and power demand type based on the historical downshift frequency distribution data of the sample vehicles.

[0046] Specifically, based on the historical downshift frequency distribution data of the sample vehicles, the power demand type corresponding to each historical downshift frequency can be determined. The preset correspondence can be determined through the following steps: 1. Sort the sample data according to the historical downshift frequency from smallest to largest, and divide it into several intervals. For example, there could be three intervals. 2. Calculate the average historical downshift frequency for each interval. 3. Sort the average historical downshift frequency of each interval from smallest to largest, obtaining an ordered sequence. For example, it could be 1 to 10. 4. Divide this ordered sequence into several segments, each segment corresponding to a power demand type. For example, it can be divided into three segments: 1 to 2 fall into interval one, corresponding to the economy demand type; 3 to 8 fall into interval two, corresponding to the normal demand type; 9 to 10 fall into interval three, corresponding to the power demand type. 5. Based on the segment where the average historical downshift frequency of each interval falls, determine the power demand type of that interval.

[0047] For example, the preset correspondence between the frequency of downshifts in history and the type of power demand is as follows: when the frequency of downshifts is 1 to 2, it corresponds to the economic demand type; when the frequency of downshifts is 3 to 8, it corresponds to the normal demand type; when the frequency of downshifts is 9 to 10, it corresponds to the power demand type.

[0048] Step 240: Based on the historical downshift frequency within the first preset time period, query the preset correspondence to obtain the power demand type to which the historical downshift frequency within the first preset time period belongs.

[0049] Specifically, the power demand type within a first preset time period is determined by using the historical downshift frequency within that period and a preset correspondence. This can be done in the following steps: 1. Match the historical downshift frequency within the first preset time period with the preset correspondence. 2. Determine the interval containing the historical downshift frequency within the first preset time period based on the matching results. 3. Determine the power demand type within the first preset time period based on the power demand type corresponding to that interval.

[0050] Step 251: When the power demand type is economic demand type, reduce the shift speed of the target vehicle at the economic shift point in the first preset time period to obtain the candidate value of the adjustment parameter of the economic shift point.

[0051] Specifically, the candidate value for the economic shift point adjustment parameter refers to the speed of the economic shift point obtained after adjusting parameters based on historical downshift frequency and economic demand within a first preset time period. This parameter reduces the speed of the economic shift point by a certain value, for example, the speed adjustment value can be in the range of -1 to -3 km / h, thereby reducing the original shift point of the vehicle by 1 to 3 km / h. When the original shift point speed for shifting from first to second gear is 20 km / h, the shift point speed for shifting from first to second gear can be adjusted according to the actual situation to obtain different candidate values ​​for the economic shift point adjustment parameter. The candidate value for the shift point speed for shifting from first to second gear can be 17 km / h, 18 km / h, or 19 km / h.

[0052] In congested urban traffic, using demand-based gear shifting can better cope with heavy traffic and frequent stops, maintaining smooth vehicle operation while reducing fuel consumption and improving driving comfort.

[0053] Step 261: Multiply the shift speed of the economic shift point within the first preset time period by the preset economic shift coefficient to obtain the range of values ​​for the shift parameter of the economic shift point.

[0054] Specifically, the preset economic shift coefficient refers to the ratio of the extreme value of the economic shift point under current vehicle driving conditions to the actual value of the current economic shift point. This coefficient can be obtained through statistical analysis of actual test data. Based on the preset economic shift coefficient, we can calculate the range of shift parameter values ​​for the economic shift point. The speed of the economic shift point within the first preset time period can be multiplied by the preset economic shift coefficient to obtain the extreme value of the economic shift point. This extreme value is then determined as the minimum value of the shift parameter for the economic shift point, thus yielding the range of shift parameter values ​​for the economic shift point.

[0055] Specifically, the preset economic shift coefficient can be between 0.7 and 0.9. For example, if the vehicle's original shift point speed for first to second gear is 20 km / h, when the preset economic shift coefficient is 0.9, the preset economic shift parameter range for first to second gear can be no less than 18 km / h. By determining the range of values ​​for the economic shift point parameters, the acceptable range of the economic shift point can be determined, allowing for the selection of the target value for adjusting the economic shift point parameters in the next step.

[0056] Step 271: Determine the target value of the adjustment parameter of the economic shift point from the candidate values ​​of the adjustment parameter of the economic shift point according to the range of the shift parameter values ​​of the economic shift point.

[0057] Specifically, the candidate values ​​for the adjustment parameters at each economic shift point can be compared with the range of values ​​for the shift parameters at that economic shift point to determine whether the candidate value falls within the range. If it falls within the range, the candidate value meets the requirements; otherwise, it is not considered. When multiple candidate values ​​for the adjustment parameters at different economic shift points fall within the range, the speed closest to the limit value can be selected as the target value for the adjustment parameters at that economic shift point, thus completing the adjustment shift strategy based on the economic shift adjustment strategy.

[0058] For example, when the adjustment parameter for shifting from first to second gear is 17 km / h, it does not meet the requirement that the preset economic shift parameter range for shifting from first to second gear is not less than 18 km / h. However, when the adjustment parameter for shifting from first to second gear is 18 km / h or 19 km / h, it meets the requirement that the preset economic shift parameter range is not less than 18 km / h, and can be used as the target value of the adjustment parameter for the economic shift point.

[0059] Step 252: When the power demand type is power demand type, increase the shift speed of the target vehicle at the power shift point in the first preset time period to obtain the candidate values ​​of the power shift point adjustment parameters.

[0060] Specifically, the candidate value for the power shift point adjustment parameter refers to the speed of the power shift point obtained after adjusting parameters based on historical downshift frequency and power demand pattern within a first preset time period. This parameter is obtained by increasing the speed of the power shift point by a certain value, for example, the speed adjustment value can be in the range of 1 to 3 km / h. Different speed adjustment values ​​can yield different candidate values ​​for the power shift point adjustment parameter.

[0061] For example, the original shift point of the vehicle is raised by 1 to 3 km / h. When the original shift point speed for shifting from first to second gear is 20 km / h, the shift point speed for shifting from first to second gear can be adjusted according to the actual situation to obtain different candidate values ​​for the adjustment parameters of the power shift point. The candidate values ​​for the adjustment parameters of shifting from first to second gear can be 21 km / h, 22 km / h, or 23 km / h.

[0062] By increasing the speed of gear shift points, target vehicles with power requirements can have higher gears at the same speed, increasing vehicle power and improving the driver's driving experience.

[0063] Step 262: Multiply the shift speed of the power shift point within the first preset time period by the preset power shift coefficient to obtain the range of values ​​for the power shift parameter.

[0064] Specifically, the preset power shift coefficient refers to the ratio of the extreme value of the vehicle's power shift point under current driving conditions to the actual value of the current power shift point. This coefficient can be obtained through statistical analysis of actual test data. Based on the preset power shift coefficient, we can calculate the range of shift parameter values ​​for the power shift point. The speed of the power shift point within the first preset time period can be multiplied by the preset power shift coefficient to obtain the extreme value of the power shift point. This extreme value is then determined as the maximum value of the shift parameter for the power shift point, thus yielding the range of shift parameter values ​​for the power shift point.

[0065] For example, the power shift coefficient can be between 1.2 and 1.4. For instance, if the vehicle's original shift point speed from first to second gear is 20 km / h, and the power shift coefficient is 1.2, the preset power shift parameter range for shifting from first to second gear can be no greater than 24 km / h. By determining the acceptable range of the power shift point parameters, the target value for adjusting the power shift point parameters can be selected in the next step.

[0066] By determining the range of values ​​for the shift parameters at the power shift point, the acceptable range of the power shift point can be identified, allowing for the selection of target values ​​for the power shift point adjustment parameters in the next step.

[0067] Step 272: Determine the target value of the adjustment parameter of the power shift point from the candidate values ​​of the adjustment parameter of the power shift point according to the range of the shift parameter values ​​of the power shift point.

[0068] Specifically, the candidate values ​​for adjusting the power shift point can be compared with the range of values ​​for the shift parameters at each power shift point to determine whether the candidate value falls within that range. If it does, the candidate value meets the requirements; otherwise, it is disregarded. When multiple candidate values ​​fall within the range of values ​​for the power shift point, the speed closest to the limit value can be selected as the target value for adjusting the power shift point, thus completing the power shift adjustment strategy.

[0069] For example, when the target values ​​for the adjustment parameters for shifting from first to second gear are 21 km / h, 22 km / h, and 23 km / h, they all meet the preset power shift parameter range of no more than 24 km / h, and can be used as the target values ​​for the adjustment parameters of the power shift point.

[0070] In this embodiment, the vehicle's power demand type and shifting strategy for a future period are determined based on the vehicle's historical downshifting frequency and power demand type. The shifting strategy is automatically adjusted according to the driving power demands of different drivers, allowing drivers to accurately control gear shifts without needing to customize their driving power demand type before driving, effectively improving fuel economy and power performance. Specifically, using an economy-adjusting shifting strategy can help drivers of the target vehicle develop more economical driving habits, reducing unnecessary fuel consumption and environmental pollution. Using a power-adjusting shifting strategy can meet the power demands of power-oriented users, improving the driving experience.

[0071] Figure 3 This is a schematic diagram of a shift control device provided by the present invention, which may specifically include:

[0072] The acquisition module 301 is used to acquire the historical downshift frequency of the target vehicle within a first preset time period;

[0073] The first determining module 302 is used to determine the power demand type of the target vehicle in the first preset time period based on the historical downshift frequency in the first preset time period.

[0074] The second determining module 303 is used to determine the shifting strategy of the target vehicle in the second preset time period based on the power demand type of the target vehicle in the first preset time period when the power demand type belongs to the preset demand type.

[0075] The control module 304 is used to control the target vehicle to shift gears according to the shifting strategy during a second preset time period, which is later than the first preset time period.

[0076] In one embodiment, the first determining module 302 is specifically used for:

[0077] Based on the historical downshift frequency within the first preset time period, a preset correspondence is queried to obtain the power demand type to which the historical downshift frequency within the first preset time period belongs.

[0078] The preset correspondence includes the correspondence between the frequency of each historical downshift and the type of power demand.

[0079] In one embodiment, the first determining module 302 further includes:

[0080] The distribution data acquisition module is used to acquire historical downshift frequency distribution data of sample vehicles;

[0081] The correspondence determination module is used to determine the preset correspondence based on the historical downshift frequency distribution data of the sample vehicles.

[0082] In one embodiment, the second determining module 303 is specifically used for:

[0083] When the power demand type is the economic demand type, the shifting strategy of the target vehicle in the first preset time period is adjusted according to the economic demand type to obtain the economic adjustment shifting strategy of the target vehicle in the second preset time period.

[0084] When the power demand type is power demand type, the shifting strategy of the target vehicle in the first preset time period is adjusted according to the power demand type to obtain the power adjustment shifting strategy of the target vehicle in the second preset time period.

[0085] In one embodiment, when the power demand type is the economic demand type, the second determining module 303 adjusts the shifting strategy of the target vehicle in a first preset time period according to the economic demand type to obtain the economic adjustment shifting strategy of the target vehicle in a second preset time period, specifically including:

[0086] Set the candidate values ​​for the adjustment parameters of the economic shift point and the range of values ​​for the shift parameters;

[0087] The target value of the adjustment parameter of the economic shift point is determined from the candidate values ​​of the adjustment parameter of the economic shift point based on the range of the shift parameter values ​​of the economic shift point.

[0088] In one embodiment, the second determining module 303 sets candidate values ​​for the adjustment parameters of the economic shift point and a range of values ​​for the shift parameters, specifically including:

[0089] The shift speed of the target vehicle at the economic shift point during the first preset time period is reduced to obtain candidate values ​​of the adjustment parameters for the economic shift point.

[0090] Multiply the shift speed at the economic shift point within the first preset time period by a preset economic shift coefficient to obtain the range of values ​​for the shift parameter at the economic shift point.

[0091] In one embodiment, when the power demand type is power demand type, the second determining module 303 adjusts the shifting strategy of the target vehicle in a first preset time period according to the power demand type to obtain the power adjustment shifting strategy of the target vehicle in a second preset time period, specifically including:

[0092] Set the candidate values ​​for the power shift point adjustment parameters and the range of shift parameter values;

[0093] The target value of the adjustment parameter of the power shift point is determined from the candidate values ​​of the adjustment parameter of the power shift point based on the range of the shift parameter values ​​of the power shift point.

[0094] In one embodiment, the second determining module 303 sets candidate values ​​for the adjustment parameters of the power shift point and a range of values ​​for the shift parameters, specifically including:

[0095] Increase the shift speed of the target vehicle at the power shift point within the first preset time period to obtain candidate values ​​for the power shift point adjustment parameters.

[0096] Multiply the shift speed of the power shift point within the first preset time period by the preset power shift coefficient to obtain the range of values ​​for the shift parameter of the power shift point.

[0097] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is merely an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the functional modules described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0098] The solution in this embodiment can obtain the historical downshift frequency of the target vehicle within a first preset time period; determine the power demand type of the target vehicle within the first preset time period based on the historical downshift frequency within the first preset time period; when the power demand type belongs to a preset demand type, determine the shifting strategy of the target vehicle within a second preset time period based on the power demand type of the target vehicle within the first preset time period; and control the target vehicle to shift gears according to the shifting strategy within the second preset time period, where the second preset time period is later than the first preset time period. In other words, this invention can determine the power demand type and shifting strategy of a vehicle within a future period based on the vehicle's historical downshift frequency and power demand type, and automatically adjust the shifting strategy according to the driving power demand of different drivers. This allows drivers to accurately control vehicle shifting without having to customize their driving power demand type before driving, effectively improving the vehicle's fuel economy and power performance.

[0099] This embodiment also provides a vehicle, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the shift control method described in any embodiment of the present invention.

[0100] This embodiment also provides a computer-readable medium having a computer program stored thereon, which, when executed by a processor, implements the shift control method provided in any of the above embodiments.

[0101] The following is for reference. Figure 4 It shows a schematic diagram of the structure of a computer system 400 suitable for implementing this embodiment in a vehicle. Figure 4 The vehicle shown is merely an example and should not be construed as limiting the functionality and scope of the invention.

[0102] like Figure 4 As shown, the computer system 400 includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 402 or programs loaded from storage section 408 into random access memory (RAM) 403. The RAM 403 also stores various programs and data required for the operation of the computer system 400. The CPU 401, ROM 402, and RAM 403 are interconnected via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0103] The following components are connected to I / O interface 405: an input section 406 including a keyboard, mouse, etc.; an output section 407 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN card, modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to I / O interface 405 as needed. A removable medium 411, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 410 as needed so that computer programs read from it can be installed into storage section 408 as needed.

[0104] In particular, according to the embodiments disclosed in this invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 409, and / or installed from removable medium 411. When the computer program is executed by central processing unit (CPU) 401, it performs the functions defined in the system of this invention. It should be noted that the computer-readable medium shown in this invention can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. The computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this invention, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in connection with an instruction execution system, apparatus, or device. In this invention, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can transmit, propagate, or transfer a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0105] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0106] The modules and / or units described in this invention can be implemented in software or hardware. The described modules and / or units can also be housed in a processor; for example, a processor can be described as including an acquisition module, a first determination module, a second determination module, and a control module. The names of these modules do not necessarily limit the module itself.

[0107] In another aspect, the present invention also provides a computer-readable medium, which may be included in the device described in the above embodiments; or it may exist independently and not assembled into the device. The computer-readable medium carries one or more programs, which, when executed by the device, cause the device to include: acquiring the historical downshift frequency of a target vehicle within a first preset time period; determining the power demand type of the target vehicle within the first preset time period based on the historical downshift frequency within the first preset time period; when the power demand type belongs to a preset demand type, determining a shifting strategy for the target vehicle within a second preset time period based on the power demand type of the target vehicle within the first preset time period; and controlling the target vehicle to shift gears according to the shifting strategy within the second preset time period, wherein the second preset time period is later than the first preset time period.

[0108] The solution in this embodiment can obtain the historical downshift frequency of the target vehicle within a first preset time period; determine the power demand type of the target vehicle within the first preset time period based on the historical downshift frequency within the first preset time period; when the power demand type belongs to a preset demand type, determine the shifting strategy of the target vehicle within a second preset time period based on the power demand type of the target vehicle within the first preset time period; and control the target vehicle to shift gears according to the shifting strategy within the second preset time period, where the second preset time period is later than the first preset time period. In other words, this invention can determine the power demand type and shifting strategy of a vehicle within a future period based on the vehicle's historical downshift frequency and power demand type, and automatically adjust the shifting strategy according to the driving power demand of different drivers. This allows drivers to accurately control vehicle shifting without having to customize their driving power demand type before driving, effectively improving the vehicle's fuel economy and power performance.

[0109] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0110] It should be noted that the collection, gathering, updating, analysis, processing, use, transmission, and storage of user personal information involved in this disclosed technical solution all comply with relevant laws and regulations, are used for legitimate purposes, and do not violate public order and good morals. Necessary measures are taken to prevent unauthorized access to user personal information data and to safeguard user personal information security, network security, and national security.

[0111] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A gear shifting control method, characterized in that, include: Obtain the historical downshift frequency of the target vehicle within the first preset time period; The power demand type of the target vehicle within the first preset time period is determined based on the historical downshift frequency within the first preset time period. When the power demand type belongs to a preset demand type, the shifting strategy of the target vehicle in the second preset time period is determined according to the power demand type of the target vehicle in the first preset time period. During the second preset time period, the target vehicle is controlled to shift gears according to the shifting strategy, wherein the second preset time period is later than the first preset time period; The preset demand types include economic demand type and power demand type. Determining the shifting strategy of the target vehicle in the second preset time period based on the power demand type of the target vehicle in the first preset time period includes: When the power demand type is the economic demand type, the shifting strategy of the target vehicle in the first preset time period is adjusted according to the economic demand type to obtain the economic adjustment shifting strategy of the target vehicle in the second preset time period. When the power demand type is power demand type, the shifting strategy of the target vehicle in the first preset time period is adjusted according to the power demand type to obtain the power adjustment shifting strategy of the target vehicle in the second preset time period. The step of adjusting the shifting strategy of the target vehicle in the first preset time period according to the economic demand type to obtain the economic adjustment shifting strategy of the target vehicle in the second preset time period includes: Set the candidate values ​​for the adjustment parameters of the economic shift point and the range of values ​​for the shift parameters; The target value of the adjustment parameter of the economic shift point is determined from the candidate values ​​of the adjustment parameter of the economic shift point based on the range of the shift parameter values ​​of the economic shift point.

2. The shift control method according to claim 1, characterized in that, Determining the power demand type of the target vehicle within the first preset time period based on the historical downshift frequency within the first preset time period includes: Based on the historical downshift frequency within the first preset time period, a preset correspondence is queried to obtain the power demand type to which the historical downshift frequency within the first preset time period belongs. The preset correspondence includes the correspondence between the frequency of each historical downshift and the type of power demand.

3. The shift control method according to claim 2, characterized in that, The preset correspondence is obtained in the following manner: Obtain historical downshift frequency distribution data for sample vehicles; The preset correspondence is determined based on the historical downshift frequency distribution data of the sample vehicles.

4. The shift control method according to claim 1, characterized in that, The setting of candidate values ​​for the adjustment parameters of the economic shift point and the range of values ​​for the shift parameters include: The shift speed of the target vehicle at the economic shift point during the first preset time period is reduced to obtain candidate values ​​of the adjustment parameters for the economic shift point. Multiply the shift speed at the economic shift point within the first preset time period by a preset economic shift coefficient to obtain the range of values ​​for the shift parameter at the economic shift point.

5. The shift control method according to claim 1, characterized in that, The step of adjusting the shifting strategy of the target vehicle in the first preset time period according to the power demand type to obtain the power adjustment shifting strategy of the target vehicle in the second preset time period includes: Set the candidate values ​​for the power shift point adjustment parameters and the range of shift parameter values; The target value of the adjustment parameter of the power shift point is determined from the candidate values ​​of the adjustment parameter of the power shift point based on the range of the shift parameter values ​​of the power shift point.

6. The shift control method according to claim 5, characterized in that, The candidate values ​​for the adjustment parameters of the power shift point and the range of values ​​for the shift parameters include: Increase the shift speed of the target vehicle at the power shift point within the first preset time period to obtain candidate values ​​for the power shift point adjustment parameters. Multiply the shift speed of the power shift point within the first preset time period by the preset power shift coefficient to obtain the range of values ​​for the shift parameter of the power shift point.

7. A gear shift control device, characterized in that, The device includes: The acquisition module is used to acquire the historical downshift frequency of the target vehicle within a first preset time period; The first determining module is used to determine the power demand type of the target vehicle in the first preset time period based on the historical downshift frequency in the first preset time period. The second determining module is used to determine the shifting strategy of the target vehicle in the second preset time period based on the power demand type of the target vehicle in the first preset time period when the power demand type belongs to the preset demand type. The control module is used to control the target vehicle to shift gears according to the shifting strategy during the second preset time period, wherein the second preset time period is later than the first preset time period; The preset demand types include economic demand and power demand, and the second determining module is specifically used for: When the power demand type is the economic demand type, the shifting strategy of the target vehicle in the first preset time period is adjusted according to the economic demand type to obtain the economic adjustment shifting strategy of the target vehicle in the second preset time period. When the power demand type is power demand type, the shifting strategy of the target vehicle in the first preset time period is adjusted according to the power demand type to obtain the power adjustment shifting strategy of the target vehicle in the second preset time period. The step of adjusting the shifting strategy of the target vehicle in the first preset time period according to the economic demand type to obtain the economic adjustment shifting strategy of the target vehicle in the second preset time period includes: Set the candidate values ​​for the adjustment parameters of the economic shift point and the range of values ​​for the shift parameters; The target value of the adjustment parameter of the economic shift point is determined from the candidate values ​​of the adjustment parameter of the economic shift point based on the range of the shift parameter values ​​of the economic shift point.

8. A vehicle comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the shift control method as described in any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the shift control method as described in any one of claims 1 to 6.

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