Gear control method and device, electronic equipment, storage medium and vehicle
By determining the vehicle load mode and target gear reserve torque and formulating gear control strategies, the problem of inaccurate calculation of gear reserve torque in different working conditions of the gearbox controller is solved, improving driving experience and reducing fuel consumption.
Patent Information
- Application Number
- CN202411376798.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2024-12-20
AI Technical Summary
In different load modes, the gearbox controller cannot accurately obtain the maximum engine torque, resulting in inaccurate calculation of gear shift reserve torque, which causes problems of gear shifting and frequent lifting and down gears, which affects driving experience and fuel consumption.
By determining the load mode of the vehicle, obtaining the reserve torque of the target gear, and determining the gear control strategy based on the reserve torque, including rising gear when the reserve torque is greater than or equal to the threshold, maintaining the current gear when it is less than the threshold, ensuring that it is in different operations There is enough reserve torque in the case.
Improves the driving experience, reduces fuel consumption, and avoids the problems of early shifting and frequent lifting and downshifting caused by insufficient reserve torque.
Smart Images
Figure CN119163745A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of vehicle control technology, and in particular, to a gear control method, device, electronic equipment, storage medium and vehicle. Background Art
[0002] Under different load modes, the vehicle often experiences frequent shifting and upshifting due to poor gear shifting control strategies of the transmission controller, which leads to poor driving experience and high fuel consumption. Summary of the invention
[0003] The purpose of the embodiments of the present disclosure is to provide a gear control method, device, electronic device, storage medium and vehicle to solve the above-mentioned technical problems.
[0004] In order to achieve the above objective, according to a first aspect of an embodiment of the present disclosure, a gear control method is provided, the method comprising:
[0005] Determine the vehicle's load pattern;
[0006] Acquire the reserve torque of the target gear of the vehicle in the load mode;
[0007] A gear control strategy of the vehicle in the load mode is determined according to the reserve torque.
[0008] Optionally, obtaining the reserve torque of the target gear of the vehicle in the load mode includes:
[0009] Obtaining the maximum limited output torque of the target gear in the load mode;
[0010] Obtaining the output torque corresponding to the working point of the target gear;
[0011] The reserve torque of the target gear is determined according to a difference between the maximum limit output torque and the output torque corresponding to the working point.
[0012] Optionally, obtaining the maximum limited output torque of the target gear in the load mode includes:
[0013] According to the engine speed of the vehicle at the target gear, obtaining the maximum output torque of the engine corresponding to the engine speed;
[0014] Obtaining a maximum output torque ratio mapping table of the target gear of the vehicle in the load mode, wherein the mapping table includes maximum output torque ratios corresponding to different engine speeds under different target gears, and the maximum output torque ratio is a ratio of the maximum output torque to the maximum output torque of the engine;
[0015] According to the mapping table and the maximum output torque of the engine, the maximum output torque limit corresponding to the engine speed is determined as the maximum output torque limit of the target gear in the load mode.
[0016] Optionally, determining the maximum limited output torque corresponding to the engine speed according to the mapping table and the maximum output torque of the engine includes:
[0017] Determining the maximum limited output torque ratio corresponding to the engine speed according to the mapping table;
[0018] The maximum output torque limit corresponding to the engine speed is obtained, and the product of the maximum output torque of the engine is obtained by obtaining the maximum output torque limit.
[0019] Optionally, the operating point of the target gear of the vehicle is the engine speed of the target gear of the vehicle;
[0020] The output torque corresponding to the working point of the target gear is obtained according to the engine speed of the target gear.
[0021] Optionally, determining the gear control strategy of the vehicle in the load mode according to the reserve torque includes:
[0022] When the reserve torque is greater than or equal to a torque threshold, performing an upshift operation;
[0023] When the reserve torque is less than the torque threshold, the current gear is maintained unchanged; wherein different load modes correspond to different torque thresholds.
[0024] Optionally, the load mode includes: a light load mode, a medium load mode or a heavy load mode.
[0025] According to a second aspect of an embodiment of the present disclosure, a gear control device is provided, the device comprising:
[0026] A first determination module, used to determine a load mode of a vehicle;
[0027] An acquisition module, configured to acquire a reserve torque of a target gear of the vehicle in the load-carrying mode;
[0028] The second determination module is used to determine the gear control strategy of the vehicle in the load mode according to the reserve torque.
[0029] According to a third aspect of an embodiment of the present disclosure, there is provided a non-temporary computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the steps of any one of the methods described in the first aspect.
[0030] According to a fourth aspect of an embodiment of the present disclosure, there is provided an electronic device, including:
[0031] a memory having a computer program stored thereon;
[0032] A processor is used to execute the computer program in the memory to implement the steps of any one of the methods in the first aspect.
[0033] According to a fifth aspect of an embodiment of the present disclosure, a vehicle is provided, the vehicle comprising the electronic device described in the fourth aspect.
[0034] In summary, the disclosed embodiment provides a gear control method, the method comprising: determining a vehicle load mode; obtaining the reserve torque of the target gear of the vehicle under the load mode; and determining the gear control strategy of the vehicle under the load mode according to the reserve torque. The disclosed embodiment can solve the problem of early gear shifting and frequent up / down shifting caused by the inability of the transmission controller to accurately obtain the maximum torque of the engine of the vehicle under different working conditions and inaccurate calculation of the gear shift reserve torque, thereby improving the driving experience and reducing fuel consumption.
[0035] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0037] Figure 1a The figure is a flow chart of a gear control method according to an exemplary embodiment.
[0038] Figure 1b is a schematic diagram showing a maximum limited output torque under different load modes according to an exemplary embodiment.
[0039] Figure 1c is a schematic diagram showing a reserve torque according to an exemplary embodiment.
[0040] Figure 2 The figure is a flow chart of a gear control method according to an exemplary embodiment.
[0041] Figure 3 The figure is a flow chart of a gear control method according to an exemplary embodiment.
[0042] Figure 4 The figure is a flow chart of a gear control method according to an exemplary embodiment.
[0043] Figure 5 The figure is a flow chart of a gear control method according to an exemplary embodiment.
[0044] Figure 6 The figure is a flow chart of a gear control method according to an exemplary embodiment.
[0045] Figure 7 is a block diagram of a gear control device according to an exemplary embodiment.
[0046] Figure 8 It is a block diagram of an electronic device according to an exemplary embodiment.
[0047] Fig. 9 is a block diagram of a vehicle according to an exemplary embodiment. DETAILED DESCRIPTION
[0048] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.
[0049] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.
[0050] It should be noted that the concepts of "first", "second", "third", "fourth", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0051] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".
[0052] At the same time, it is understandable that the data involved in this technical solution (including but not limited to the data itself, the acquisition or use of the data) shall comply with the requirements of relevant laws, regulations and relevant provisions.
[0053] First, the application scenario of the present disclosure is explained. The inventors have found that, in general, when a commercial vehicle equipped with an AMT (automated-mechanical-transmission) is shifting up, it is necessary to determine the amount of torque that the engine can still exert after the gear is shifted up. This amount of torque is also called reserve torque. After the gearbox has completed the upshift, there needs to be enough reserve torque to ensure that the vehicle has enough driving force to drive the vehicle after the gear is shifted up, so as to ensure the power responsiveness of the vehicle; when the reserve torque is insufficient, the acceleration of the vehicle will be severely weakened, and in more serious cases, there will even be a drag phenomenon, the resonance of the vehicle will increase, the noise will increase, and the fuel consumption will increase sharply, which will seriously affect the driver's driving experience.
[0054] In view of this, the embodiments of the present disclosure provide a gear control method, device, electronic device, storage medium and vehicle, which are used to solve the above technical problems. The present disclosure is described below in conjunction with specific embodiments.
[0055] Figure 1a FIG. 1 is a flow chart of a gear control method according to an exemplary embodiment. Figure 1a As shown, the embodiment of the present disclosure provides a gear control method, which may include the following steps:
[0056] In step S10 , the load mode of the vehicle is determined.
[0057] In this step, the transmission controller determines the load mode of the vehicle. Exemplarily, the load mode of the vehicle may include: light load mode, medium load mode or heavy load mode.
[0058] In step S20, the reserve torque of the target gear of the vehicle in the load mode is obtained.
[0059] In this step, the gearbox controller obtains the reserve torque of the target gear of the vehicle in the load mode. Exemplarily, the maximum limit output torque of the target gear in the corresponding load mode can be obtained first, and then the output torque corresponding to the working point of the target gear can be obtained, and then the reserve torque of the target gear can be determined according to the difference between the maximum limit output torque and the output torque.
[0060] Figure 1b FIG. 1 is a schematic diagram showing the maximum limited output torque under different load modes according to an exemplary embodiment. Figure 1b As shown in the figure, P mode is heavy load mode, B mode is medium load mode, and E mode is light load mode. It can be seen that the maximum limit output torque of the heavy load mode is greater than the maximum limit output torque of the medium load mode, and the maximum limit output torque of the medium load mode is greater than the maximum limit output torque of the light load mode.
[0061] Figure 1c FIG. 1 is a schematic diagram showing a reserve torque according to an exemplary embodiment. Figure 1c As shown in the figure, point A is the working point of the vehicle in the 2nd gear (the working point can be understood as the current vehicle speed and the engine speed or output torque under the current gear), at which the engine speed is 1000 rpm and the output torque is 1800 Nm; point B is the working point of the vehicle in the 3rd gear, at which the engine speed is 800 rpm and the output torque is 1600 Nm. Then the reserve torque of the vehicle in the 2nd gear heavy load mode is 2600-1800=800 Nm, and the reserve torque of the vehicle in the 3rd gear heavy load mode is 2000-1600=400 Nm; the reserve torque of the vehicle in the 2nd gear medium load mode is 2100-1800=300 Nm, and the reserve torque of the vehicle in the 3rd gear medium load mode is 1600-1600=0 Nm. It is obvious that the reserve torque of the vehicle in the 3rd gear medium load mode is 0. If the vehicle is forced to shift from 2nd gear to 3rd gear in the medium load mode, the torque at the B working point has reached the maximum limit torque of 100% of the throttle in the medium load mode. In other words, even if the driver steps on the accelerator to the maximum at this time, there is no power required to accelerate the whole vehicle. As the vehicle speed decreases, the transmission controller will downshift, and then the gears will be upshifted and downshifted repeatedly, causing the whole vehicle to experience driving frustration, power interruption, weak acceleration, and high fuel consumption.
[0062] In step S30, a gear control strategy of the vehicle in the load mode is determined according to the reserve torque.
[0063] In this step, the gearbox controller determines the gear control strategy of the vehicle in the load mode according to the reserve torque. Exemplarily, the upshift operation can be performed when the reserve torque of the target gear to be upshifted is greater than or equal to the torque threshold; when the reserve torque of the target gear to be upshifted is less than the torque threshold, the current gear is maintained unchanged; wherein different load modes correspond to different torque thresholds. Generally speaking, the upshift torque threshold of the target gear corresponding to the light load mode is less than the upshift torque threshold of the target gear corresponding to the medium load mode, and the upshift torque threshold of the target gear corresponding to the medium load mode is less than the upshift torque threshold of the target gear corresponding to the heavy load mode, wherein the target gears corresponding to different load modes are the same gears. In this way, it can be ensured that the vehicle has sufficient reserve torque when upshifting to the target gear under different working conditions, and there will be no problems of early shifting, dragging, and frequent upshifting and downshifting due to insufficient reserve torque.
[0064] In summary, the disclosed embodiment provides a gear control method, the method comprising: determining a vehicle load mode; obtaining the reserve torque of the target gear of the vehicle under the load mode; and determining the gear control strategy of the vehicle under the load mode according to the reserve torque. The disclosed embodiment can solve the problem of early gear shifting and frequent up / down shifting caused by the inability of the transmission controller to accurately obtain the maximum torque of the engine of the vehicle under different working conditions and inaccurate calculation of the gear shift reserve torque, thereby improving the driving experience and reducing fuel consumption.
[0065] Figure 2 FIG. 1 is a flow chart of a gear control method according to an exemplary embodiment. Figure 2 As shown, the step of obtaining the reserve torque of the target gear of the vehicle in the load mode may include the following steps:
[0066] In step S201, the maximum limit output torque of the target gear in the load mode is obtained.
[0067] In this step, the gearbox controller obtains the maximum output torque limit of the target gear to be shifted up in the corresponding load mode. Exemplarily, the maximum output torque of the engine corresponding to the speed of the vehicle in the target gear can be obtained first, and the maximum output torque is related to the characteristics of the engine. Then, according to the maximum output torque of the engine, the throttle and torque mapping table of the vehicle in the corresponding load mode is obtained, and then according to the throttle and torque mapping table, the maximum output torque limit of the target gear in the corresponding load mode is obtained. Among them, the throttle and torque mapping table of the vehicle in the corresponding load mode is pre-calibrated.
[0068] In step S202, the output torque corresponding to the working point of the target gear is obtained.
[0069] In this step, the gearbox controller obtains the output torque corresponding to the working point of the target gear. Exemplarily, the output torque corresponding to the working point of the target gear is obtained according to the engine speed of the target gear. The output torque is related to the characteristics of the engine.
[0070] In step S203, the reserve torque of the target gear is determined according to the difference between the maximum limit output torque and the output torque corresponding to the working point.
[0071] In this step, the gearbox controller determines the reserve torque of the target gear according to the difference between the maximum output torque limit of the target gear to be shifted up and the output torque corresponding to the working point of the target gear. It should be noted that the maximum output torque limit of the target gear to be shifted up under different working conditions is different. Generally speaking, the maximum output torque limit of the target gear corresponding to the light load mode is less than the maximum output torque limit of the target gear corresponding to the medium load mode, and the maximum output torque limit of the target gear corresponding to the medium load mode is less than the maximum output torque limit of the target gear corresponding to the heavy load mode, wherein the target gears corresponding to different load modes are the same gear.
[0072] Figure 3 FIG. 1 is a flow chart of a gear control method according to an exemplary embodiment. Figure 3 As shown, the obtaining of the maximum limited output torque of the target gear in the load mode may include the following steps:
[0073] In step S2011, according to the engine speed of the vehicle at the target gear, the maximum output torque of the engine corresponding to the engine speed is obtained.
[0074] In this step, the gearbox controller obtains the maximum output torque of the engine corresponding to the engine speed according to the engine speed of the vehicle in the target gear. Exemplarily, the maximum output torque of the engine corresponding to the engine speed is related to the characteristics of the engine.
[0075] In step S2012, a mapping table of the maximum limited output torque ratio of the target gear of the vehicle under the load mode is obtained, and the mapping table is pre-calibrated. The mapping table contains the maximum limited output torque ratio corresponding to different engine speeds under different target gears, and the maximum limited output torque ratio is the ratio of the maximum limited output torque to the maximum output torque of the engine.
[0076] In this step, the gearbox controller obtains a mapping table of the maximum output torque ratio of the target gear of the vehicle under the load mode. The mapping table is pre-calibrated and contains the maximum output torque ratio corresponding to different engine speeds under different target gears. The maximum output torque ratio is the ratio of the maximum output torque to the maximum output torque of the engine. Exemplarily, the mapping table includes a mapping relationship between the engine speed of multiple target gears and the maximum output torque ratio. Under different load modes, there are different mapping relationship tables of engine speed and maximum output torque ratio. The mapping relationship of different vehicles may be different, which is subject to the actual situation and is not limited by this disclosure.
[0077] In step S2013, the maximum limit output torque corresponding to the engine speed is determined according to the mapping table and the maximum output torque of the engine, which serves as the maximum limit output torque of the target gear in the load mode.
[0078] In this step, the gearbox controller determines the maximum output torque limit corresponding to the engine speed according to the mapping table and the maximum output torque of the engine, as the maximum output torque limit of the target gear in the load mode. For example, the maximum output torque limit corresponding to the engine speed can be determined according to the mapping table, and then the maximum output torque limit corresponding to the engine speed is obtained, and the product of the maximum output torque limit and the maximum output torque of the engine is obtained to obtain the maximum output torque limit.
[0079] Figure 4 FIG. 1 is a flow chart of a gear control method according to an exemplary embodiment. Figure 4 As shown, determining the maximum limited output torque corresponding to the engine speed according to the mapping table and the maximum output torque of the engine may include the following steps:
[0080] In step S20131, the maximum limit output torque ratio corresponding to the engine speed is determined according to the mapping table.
[0081] In this step, the gearbox controller determines the maximum output torque limit corresponding to the engine speed according to the mapping table. For example, in the light load mode, when the engine speed is 800 rpm, the maximum output torque limit of the target gear can be 60% of the maximum output torque of the engine at this speed. In the heavy load mode, the maximum output torque limit of the target gear can be 80% of the maximum output torque of the engine at this speed.
[0082] In step S20132, the maximum output torque limit corresponding to the engine speed is obtained, and the product of the maximum output torque of the engine is obtained to obtain the maximum output torque limit.
[0083] In this step, the transmission controller obtains the maximum output torque limit of the gear according to the product of the maximum output torque limit corresponding to the engine speed and the maximum output torque of the engine at the engine speed.
[0084] Figure 5 FIG. 1 is a flow chart of a gear control method according to an exemplary embodiment. Figure 5 As shown, the working point of the target gear of the vehicle is the engine speed of the target gear of the vehicle. The step of obtaining the output torque corresponding to the working point of the target gear may include the following steps:
[0085] In step S2021, the output torque corresponding to the working point of the target gear is obtained according to the engine speed of the target gear.
[0086] In this step, the gearbox controller can obtain the output torque corresponding to the working point of the target gear according to the engine speed of the target gear. The output torque is related to the engine characteristics.
[0087] Figure 6 FIG. 1 is a flow chart of a gear control method according to an exemplary embodiment. Figure 6 As shown, determining the gear control strategy of the vehicle in the load mode according to the reserve torque may include the following steps:
[0088] In step S301, when the reserve torque is greater than or equal to the torque threshold, an upshift operation is performed.
[0089] In this step, the transmission controller performs an upshift operation when the reserve torque of the target gear in the corresponding load mode is greater than or equal to the torque threshold in the corresponding load mode.
[0090] In step S302, when the reserve torque is less than the torque threshold, the current gear is maintained unchanged; wherein different load modes correspond to different torque thresholds.
[0091] In this step, when the reserve torque of the target gear in the corresponding load mode is less than the torque threshold in the corresponding load mode, the gear controller maintains the current gear unchanged; different load modes correspond to different torque thresholds. In this way, it can be ensured that the vehicle has sufficient reserve torque when shifting to the target gear under different working conditions, and there will be no problems such as early shifting, dragging, and frequent shifting due to insufficient reserve torque.
[0092] In summary, the disclosed embodiment provides a gear control method, the method comprising: determining a vehicle load mode; obtaining the reserve torque of the target gear of the vehicle under the load mode; and determining the gear control strategy of the vehicle under the load mode according to the reserve torque. The disclosed embodiment can solve the problem of early gear shifting and frequent up / down shifting caused by the inability of the transmission controller to accurately obtain the maximum torque of the engine of the vehicle under different working conditions and inaccurate calculation of the gear shift reserve torque, thereby improving the driving experience and reducing fuel consumption.
[0093] In some embodiments, the load mode may include: a light load mode, a medium load mode, or a heavy load mode.
[0094] Figure 7 is a block diagram of a gear control device according to an exemplary embodiment. Figure 7As shown, the embodiment of the present disclosure provides a gear control device 700, and the device 700 may include the following modules:
[0095] The first determination module 710 is used to determine the load mode of the vehicle.
[0096] The acquisition module 720 is used to acquire the reserve torque of the target gear of the vehicle in the load mode.
[0097] The second determination module 730 is configured to determine a gear control strategy of the vehicle in the load mode according to the reserve torque.
[0098] Optionally, the acquisition module 720 is further configured to:
[0099] Obtaining the maximum limited output torque of the target gear in the load mode;
[0100] Obtaining the output torque corresponding to the working point of the target gear;
[0101] The reserve torque of the target gear is determined according to a difference between the maximum limit output torque and the output torque corresponding to the working point.
[0102] Optionally, the acquisition module 720 is further configured to:
[0103] According to the engine speed of the vehicle at the target gear, obtaining the maximum output torque of the engine corresponding to the engine speed;
[0104] Obtaining a maximum output torque ratio mapping table of the target gear of the vehicle in the load mode, wherein the mapping table includes maximum output torque ratios corresponding to different engine speeds under different target gears, and the maximum output torque ratio is a ratio of the maximum output torque to the maximum output torque of the engine;
[0105] According to the mapping table and the maximum output torque of the engine, the maximum output torque limit corresponding to the engine speed is determined as the maximum output torque limit of the target gear in the load mode.
[0106] Optionally, the acquisition module 720 is further configured to:
[0107] Determining the maximum limited output torque ratio corresponding to the engine speed according to the mapping table;
[0108] The maximum output torque limit corresponding to the engine speed is obtained, and the product of the maximum output torque of the engine is obtained by obtaining the maximum output torque limit.
[0109] Optionally, the working point of the target gear of the vehicle is the engine speed of the target gear of the vehicle; the acquisition module 720 is further used to:
[0110] The output torque corresponding to the working point of the target gear is obtained according to the engine speed of the target gear.
[0111] Optionally, the second determining module 730 is further configured to:
[0112] When the reserve torque is greater than or equal to a torque threshold, performing an upshift operation;
[0113] When the reserve torque is less than the torque threshold, the current gear is maintained unchanged; wherein different load modes correspond to different torque thresholds.
[0114] Optionally, the load mode includes: a light load mode, a medium load mode or a heavy load mode.
[0115] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.
[0116] In summary, the disclosed embodiment provides a gear control device, the device comprising: a first determination module for determining a vehicle's load mode; an acquisition module for acquiring the reserve torque of the target gear of the vehicle under the load mode; and a second determination module for determining the gear control strategy of the vehicle under the load mode according to the reserve torque. The disclosed embodiment can solve the problem of early gear shifting and frequent up / down shifting caused by the inability of the gearbox controller to accurately acquire the maximum torque of the engine of the vehicle under different working conditions and inaccurate calculation of the gear shift reserve torque, thereby improving the driving experience and reducing fuel consumption.
[0117] Figure 8 FIG. 1 is a block diagram of an electronic device according to an exemplary embodiment. Figure 8 As shown, the electronic device 800 may be a gearbox controller, and the electronic device 800 may include: a processor 801, a memory 802. The electronic device 800 may also include one or more of a multimedia component 803, an input / output (I / O) interface 804, and a communication component 805.
[0118] The processor 801 is used to control the overall operation of the electronic device 800 to complete all or part of the steps in the above-mentioned gear control method. The memory 802 is used to store various types of data to support the operation of the electronic device 800, and these data may include, for example, instructions for any application or method used to operate on the electronic device 800, and application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, referred to as EPROM), programmable read-only memory (Programmable Read-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, magnetic disk or optical disk. The multimedia component 803 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 802 or sent through the communication component 805. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 804 provides an interface between the processor 801 and other interface modules, and the above-mentioned other interface modules may be keyboards, mice, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 805 is used for wired or wireless communication between the electronic device 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, is not limited here. Therefore, the corresponding communication component 805 may include: Wi-Fi module, Bluetooth module, NFC module, etc.
[0119] In an exemplary embodiment, the electronic device 800 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned gear control method.
[0120] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the above-mentioned gear control method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 802 including program instructions, and the above-mentioned program instructions can be executed by the processor 801 of the electronic device 800 to complete the above-mentioned gear control method.
[0121] In another exemplary embodiment, a computer program product is further provided. The computer program product includes a computer program executable by a programmable device. The computer program has a code portion for executing the above-mentioned gear control method when executed by the programmable device.
[0122] Fig. 9 FIG. 1 is a block diagram of a vehicle according to an exemplary embodiment. Fig. 9 As shown, the embodiment of the present disclosure also provides a vehicle 900, which includes the electronic device 800 described in the previous embodiment, and the electronic device 800 can solve the problem of early shifting and frequent up and down shifting caused by the inaccurate calculation of the shift reserve torque due to the inability of the transmission controller to accurately obtain the maximum torque of the engine of the vehicle under different working conditions, thereby improving the driving experience and reducing fuel consumption. The vehicle 900 using the electronic device 800 of the embodiment of the present disclosure also has the above advantages.
[0123] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0124] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and the present disclosure will not further explain various possible combinations.
[0125] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A gear control method, characterized in that: The method comprises: Determine the vehicle's load pattern; Acquire the reserve torque of the target gear of the vehicle in the load mode; A gear control strategy of the vehicle in the load mode is determined according to the reserve torque.
2. The method according to claim 1, characterized in that The obtaining of the reserve torque of the target gear of the vehicle in the load mode includes: Obtaining the maximum limited output torque of the target gear in the load mode; Obtaining the output torque corresponding to the working point of the target gear; The reserve torque of the target gear is determined according to a difference between the maximum limit output torque and the output torque corresponding to the working point.
3. The method according to claim 2, characterized in that The obtaining of the maximum limited output torque of the target gear in the load mode includes: According to the engine speed of the vehicle at the target gear, obtaining the maximum output torque of the engine corresponding to the engine speed; Obtaining a maximum output torque ratio mapping table of the target gear of the vehicle in the load mode, wherein the mapping table contains maximum output torque ratios corresponding to different engine speeds under different target gears, and the maximum output torque ratio is a ratio of the maximum output torque to the maximum output torque of the engine; According to the mapping table and the maximum output torque of the engine, the maximum limit output torque corresponding to the engine speed is determined as the maximum limit output torque of the target gear in the load mode.
4. The method according to claim 3, characterized in that The determining the maximum limited output torque corresponding to the engine speed according to the mapping table and the maximum output torque of the engine includes: Determining the maximum limited output torque ratio corresponding to the engine speed according to the mapping table; The maximum output torque limit corresponding to the engine speed is obtained, and the product of the maximum output torque of the engine is obtained by obtaining the maximum output torque limit.
5. The method according to claim 2, characterized in that: The working point of the target gear of the vehicle is the engine speed of the target gear of the vehicle; The output torque corresponding to the working point of the target gear is obtained according to the engine speed of the target gear.
6. The method according to claim 1, characterized in that The step of determining the gear control strategy of the vehicle in the load mode according to the reserve torque includes: When the reserve torque is greater than or equal to a torque threshold, performing an upshift operation; When the reserve torque is less than the torque threshold, the current gear is maintained unchanged; wherein different load modes correspond to different torque thresholds.
7. The method according to any one of claims 1 to 6, characterized in that The load mode includes: light load mode, medium load mode or heavy load mode.
8. A gear control device, characterized in that: The device comprises: A first determination module, used to determine a load mode of a vehicle; An acquisition module, configured to acquire a reserve torque of a target gear of the vehicle in the load-carrying mode; The second determination module is used to determine the gear control strategy of the vehicle in the load mode according to the reserve torque.
9. An electronic device, characterized in that: include: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1 to 7.
10. A vehicle, characterized in that: The vehicle includes the electronic device according to claim 9.