Engine torque smoothing control method, apparatus and device, and readable storage medium

Abstract

An engine torque smoothing control method, apparatus and device, and a readable storage medium. The method comprises: acquiring a gearbox gear of a vehicle; on the basis of the gearbox gear or a transmission ratio corresponding to the gearbox gear, determining a target torque change rate limit value of an engine; and on the basis of the target torque change rate limit value, performing engine torque smoothing. The engine torque smoothing can be executed in different gears by using different target torque change rate limit values, such that the engine torque smoothing can be executed in a gear with a relatively high transmission ratio by using a relatively small target torque change rate limit value, thereby avoiding the oscillation of a vehicle caused by an excessively large torque change rate at a transmission system; and the engine torque smoothing can be executed in a gear with a relatively low transmission ratio by using a relatively large target torque change rate limit value, such that the torque of an engine can be increased as quickly as possible while the vehicle can maintain smoothness, thereby ultimately effectively balancing the torque response capability of the vehicle and the smoothness of a torque increase process.

Description

Engine torque cushion function control method, device, equipment and readable storage medium TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle torque control, in particular to an engine torque cushion function control method, device, equipment and readable storage medium. BACKGROUND

[0002] At present, in order to prevent the shock caused by the torque mutation of the vehicle transmission system when refueling and fuel cutting, the common method is to increase the engine torque cushion function to limit the engine torque change rate to prevent the shock caused by the torque mutation of the transmission system. The torque cushion function essentially reduces the torque change rate of the transmission system to avoid the shock phenomenon, but the transmission system torque change rate is strongly related to the transmission ratio. For example, when the gear is low, the transmission ratio is large, the torque and the change rate will be amplified, and at this time the engine torque change is required to be strictly limited. When the gear is high, the transmission ratio is small, the torque and the change rate will not be amplified, and at this time the engine torque change is basically not required to be limited, and the limitation will cause the acceleration and deceleration response to be sluggish.

[0003] Therefore, the method of fixedly increasing the engine torque cushion in the related art to prevent the shock of the vehicle transmission system will affect the driving experience of the vehicle in some working conditions. For example, if the torque cushion function is too strict, the acceleration and deceleration response of the whole vehicle will be sluggish, or if the torque cushion function is too loose, the shock and jerk phenomenon of the transmission system will still be obvious. SUMMARY

[0004] The present application provides an engine torque cushion function control method, device, equipment and readable storage medium, which can solve the technical problems existing in the prior art.

[0005] In a first aspect, an engine torque cushion function control method is provided, which adopts the following technical scheme:

[0006] An engine torque cushion function control method, characterized in that the method comprises:

[0007] Obtaining the gear position of the vehicle transmission;

[0008] According to the transmission ratio corresponding to the transmission gear position or the transmission gear, determining the target torque change rate limit value of the engine;

[0009] According to the target torque change rate limit value, the engine torque cushion is performed.

[0010] In combination with the first aspect, in an implementation mode, according to the transmission ratio corresponding to the transmission gear position or the transmission gear, the target torque change rate limit value of the engine is determined, which comprises the following steps:

[0011] According to a preset correspondence between the plurality of gearbox gears and the plurality of engine torque change rates, the target torque change rate limit of the engine is determined.

[0012] In combination with the first aspect, in an implementation, the same engine torque change rate corresponds to at least one gearbox gear.

[0013] In combination with the first aspect, in an implementation, the difference between the transmission speed ratios of the plurality of gearbox gears corresponding to the same torque change rate is less than a preset speed ratio difference threshold.

[0014] In combination with the first aspect, in an implementation, the determination of the target torque change rate limit of the engine according to the transmission speed ratio corresponding to the gearbox gear comprises the following steps:

[0015] The torque change rate threshold of the transmission system is obtained;

[0016] The target torque change rate limit of the engine is determined according to the combined calculation result of the transmission speed ratio corresponding to the gearbox gear and the torque change rate threshold.

[0017] In combination with the first aspect, in an implementation, in the determination of the target torque change rate limit of the engine according to the combined calculation result of the transmission speed ratio corresponding to the gearbox gear and the torque change rate threshold,

[0018] The target torque change rate limit of the engine is the ratio of the torque change rate threshold to the transmission speed ratio corresponding to the gearbox gear.

[0019] In combination with the first aspect, in an implementation, before the torque change rate threshold of the transmission system is obtained, the following steps are included:

[0020] The operating mode of the vehicle is obtained;

[0021] According to a preset correspondence between the plurality of gearbox gears and the plurality of engine torque change rates, the target torque change rate limit of the engine is determined.

[0022] Secondly, the application provides an engine torque cushioning function control device, which adopts the following technical scheme:

[0023] An engine torque cushioning function control device, comprising:

[0024] An obtaining module configured to obtain the gearbox gear of the vehicle;

[0025] A torque change rate limiting module configured to determine the target torque change rate limit of the engine according to the transmission speed ratio corresponding to the gearbox gear or the gearbox gear;

[0026] a torque limiting module configured to limit the engine torque according to the target torque rate limit.

[0027] In a third aspect, an engine torque limiting function control device is provided, which employs the following technical solution:

[0028] An engine torque limiting function control device comprises a processor, a memory, and an engine torque limiting function control program stored in the memory and executable by the processor, wherein the engine torque limiting function control program, when executed by the processor, implements the steps of the engine torque limiting function control method described above.

[0029] In a fourth aspect, a readable storage medium is provided, which employs the following technical solution:

[0030] A readable storage medium has an engine torque limiting function control program stored thereon, wherein the engine torque limiting function control program, when executed by a processor, implements the steps of the engine torque limiting function control method described above.

[0031] The technical solutions provided in the embodiments of the present application have the following beneficial effects:

[0032] By determining the appropriate target torque rate limit of the engine according to the current gearbox gear or the transmission ratio corresponding to the gearbox gear before limiting the torque rate of the engine, the engine torque limiting can be performed at different target torque rate limits in different gears, so that the engine torque limiting can be performed at a lower target torque rate limit in gears with higher transmission ratios, thereby avoiding excessive torque rate at the transmission system and causing vehicle oscillation, and the engine torque limiting can be performed at a higher target torque rate limit in gears with lower transmission ratios, so that the engine torque can be as quickly as possible while the vehicle maintains smoothness, and finally the torque response capability of the vehicle and the smoothness of the torque increasing process are effectively balanced. BRIEF DESCRIPTION OF DRAWINGS

[0033] FIG. 1 is a flowchart of an embodiment of the engine torque limiting function control method of the present application;

[0034] FIG. 2 is a functional module diagram of an embodiment of the engine torque limiting function control device of the present application;

[0035] FIG. 3 is a hardware structure diagram of the engine torque limiting function control device involved in the embodiment of the present application. DETAILED DESCRIPTION

[0036] In the following, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0037] Currently, in order to prevent the shock caused by the torque mutation of the vehicle transmission system when the engine is refueled or fuel is cut off, the common method is to increase the engine torque cushion function to limit the engine torque change rate to prevent the shock caused by the torque mutation of the transmission system. However, the torque cushion function essentially reduces the torque change rate of the transmission system to avoid the shock phenomenon. However, the torque change rate of the transmission system is strongly related to the transmission ratio. For example, when the transmission ratio is large at a low gear, the torque and the change rate will be amplified, and at this time, the engine torque change needs to be strictly limited. When the transmission ratio is small at a high gear, the torque and the change rate will not be amplified, and at this time, the engine torque change basically does not need to be limited, and the limitation will cause the acceleration and deceleration response to be sluggish.

[0038] Therefore, the method of fixedly increasing the engine torque cushion in the related art to prevent the shock of the vehicle transmission system will affect the driving experience of the vehicle in some working conditions. For example, if the torque cushion function is too strict, the acceleration and deceleration response of the vehicle will be sluggish, or if the torque cushion function is too loose, the shock and jerk phenomenon of the transmission system will still be obvious.

[0039] Based on the above problems, the present application provides an engine torque cushion function control method, device, equipment and readable storage medium, and the invention points are as follows. Before the torque change rate of the engine is limited, the current suitable target torque change rate limit value of the engine is determined according to the current gear of the vehicle transmission or the transmission ratio corresponding to the gear of the vehicle transmission, so that the engine torque cushion can be performed at different target torque change rate limit values at different gears. Therefore, at a high gear, the engine torque cushion can be performed at a lower target torque change rate limit value, so as to avoid the torque change rate of the transmission system being too large and causing the vehicle to shake. At the same time, at a low gear, the engine torque cushion can be performed at a higher target torque change rate limit value, so that the torque of the engine can be as quickly as possible while the vehicle can maintain smoothness, and finally the torque response capability of the vehicle and the smoothness of the torque increasing process are effectively balanced.

[0040] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail with reference to the drawings.

[0041] In a first aspect, the embodiments of the present application provide an engine torque cushion function control method.

[0042] In one embodiment, referring to FIG. 1, FIG. 1 is a flowchart of a first embodiment of the engine torque ramping function control method. As shown in FIG. 1, the engine torque ramping function control method comprises:

[0043] An engine torque ramping function control method, the method comprising:

[0044] S100, obtaining a gearshift gear of a vehicle;

[0045] S200, determining a target torque rate limit value of an engine according to a transmission speed ratio corresponding to the gearshift gear or the gearshift gear;

[0046] Specifically, the EECU in the vehicle can introduce a torque ramping module according to the current gear signal for grading, for example, grading according to the current specific gear or the speed ratio corresponding to each gear to correspond to different torque ramping activation intervals and torque rate in the interval.

[0047] S300, engine torque ramping according to the target torque rate limit value.

[0048] After obtaining the target torque rate limit value corresponding to the current gearshift gear or transmission speed ratio, the engine torque ramping function can be implemented according to the target torque rate limit value. The engine specifically how to implement the torque ramping function is not the main technical solution of the present application, so it is not described here. It can be referred to the related technology in the industry, but after determining the target torque rate limit value through the related steps of the present application, any form of way to implement the engine torque ramping according to the target torque rate limit value should be considered within the protection scope of the present application.

[0049] Finally, by determining the appropriate target torque rate limit value of the current engine according to the transmission speed ratio corresponding to the current gearshift gear or the gearshift gear before applying the limit to the torque rate of the engine, the engine torque ramping can be executed with different target torque rate limit values at different gears, and the engine torque ramping can be executed with lower target torque rate limit values at gears with higher transmission speed ratios, avoiding excessive torque rate at the transmission system to cause vehicle oscillation, and the engine torque ramping can be executed with higher target torque rate limit values at gears with lower transmission speed ratios, achieving smoothness of the vehicle while the torque of the engine can be as fast as possible. Ultimately, the torque response capability and smoothness of the torque increasing process of the vehicle are effectively balanced.

[0050] Further, in one embodiment, the step S200 of determining the target torque rate limit value of the engine according to the transmission speed ratio corresponding to the gearshift gear or the gearshift gear comprises the following steps:

[0051] S210, determining the target torque change rate limit value of the engine according to a preset correspondence between the plurality of gear positions of the gearbox and the plurality of engine torque change rates.

[0052] For example, in some embodiments, for a commercial vehicle with 12 gears, a corresponding engine torque change rate can be preset for each gear, that is, different engine torque change rates correspond to different gearbox gears. After the current gearbox gear is determined, the corresponding engine torque change rate is used as the target torque change rate limit value of the engine. In addition, in other embodiments, gears with small transmission ratio differences can be considered as gears of the same level, and gears of the same level correspond to the same engine torque change rate. Different engine torque change rates correspond to gears of different levels, and the engine torque change rate changes with the increase or decrease of the gear level.

[0053] Further, in an embodiment, one type of engine torque change rate corresponds to at least one gearbox gear.

[0054] Specifically, the difference between the transmission ratios of the plurality of gearbox gears corresponding to the same torque change rate is less than a preset threshold value of the ratio difference.

[0055] In this way, the same engine torque change rate can be used for gears with small transmission ratio differences. At this time, due to the small transmission ratio difference, the corresponding transmission torque change rate difference in the transmission system is small when the same engine torque change rate is used for torque buffering, so that the experience of the user is very close or basically consistent. Finally, the control process of the multi-gear vehicle in the actual driving process is effectively simplified, which is easy to implement and can further guarantee the design cost.

[0056] Further, in other embodiments, different from the above embodiments, the step S200 of determining the target torque change rate limit value of the engine according to the transmission ratio corresponding to the gearbox gear comprises the following steps:

[0057] S210, obtaining a preset torque change rate threshold value of the transmission system;

[0058] S220, determining the target torque change rate limit value of the engine according to the combination calculation result of the transmission ratio corresponding to the gearbox gear and the torque change rate threshold value.

[0059] Specifically, the torque change rate threshold of the transmission system is a related parameter calibrated in advance for the vehicle, and when the torque change rate threshold is within, the vehicle torque has good smoothness in the change process, and when the torque change rate of the transmission system is greater than the torque change rate threshold, the vehicle torque will obviously have a jerk in the change process, affecting the user driving experience. Therefore, by combining and calculating the transmission speed ratio corresponding to the current gearbox gear with the torque change rate threshold, the target torque change rate limit value required to be applied on the engine can be obtained, so that the torque change rate of the engine can meet the condition that the torque change rate is always less than the torque change rate threshold at the transmission system.

[0060] In this way, the adaptive design gear is realized. For example, the whole vehicle transmission system torque change causes oscillation and thus needs to be cushioned. The torque change rate is related to the speed ratio of each gear of the gearbox, so the torque change rate threshold of the transmission system can be set according to the principle of oscillation generation, and the torque change rate limit value of the torque generation source, i.e., the engine, can be adaptively calculated according to the gearbox speed ratio of the current gear.

[0061] Further, in some embodiments, in the combination calculation result of the transmission speed ratio corresponding to the gearbox gear and the torque change rate threshold,

[0062] The target torque change rate limit value of the engine is the ratio of the torque change rate threshold to the transmission speed ratio corresponding to the gearbox gear.

[0063] Further, in some embodiments, before the step S210 of acquiring the preset torque change rate threshold of the transmission system, the following steps are included:

[0064] S201, acquiring the running mode of the vehicle;

[0065] S202, determining the torque change rate threshold participating in subsequent calculation according to the preset corresponding relationship between the running mode and the plurality of torque change rate thresholds.

[0066] For the vehicle, the user may have different torque response requirements, so the vehicle often has different running modes when running, such as a running mode with faster torque response, or an economic running mode with smoother torque response, etc. Therefore, in different running modes, the torque change rate threshold needs to be adjusted to meet the different torque response requirements of the user.

[0067] Therefore, in this embodiment, the running mode and the plurality of torque change rate thresholds are pre-corresponded, and when a certain running mode is entered, the corresponding torque change rate threshold is used for subsequent execution of the engine cushioning function.

[0068] In a second aspect, the embodiments of the present application further provide an engine torque ramping function control device.

[0069] In one embodiment, referring to FIG. 2, which is a functional module diagram of an engine torque ramping function control device according to an embodiment of the present application, the engine torque ramping function control device comprises:

[0070] a obtaining module configured to obtain a gear position of a transmission of the vehicle;

[0071] a torque rate limiting module configured to determine a target torque rate limit value of the engine according to a transmission speed ratio corresponding to the gear position of the transmission;

[0072] a torque ramping module configured to perform torque ramping of the engine according to the target torque rate limit value.

[0073] Further, in one embodiment, the torque rate limiting module of the engine torque ramping function control device is configured to:

[0074] when determining the target torque rate limit value of the engine according to the transmission speed ratio corresponding to the gear position of the transmission, comprising the following steps:

[0075] determining the target torque rate limit value of the engine according to a preset correspondence between a plurality of gear positions of the transmission and a plurality of torque rates of the engine.

[0076] Further, in one embodiment, the torque rate limiting module of the engine torque ramping function control device is configured to:

[0077] the same torque rate of the engine corresponds to at least one gear position of the transmission.

[0078] Further, in one embodiment, the torque rate limiting module of the engine torque ramping function control device is configured to:

[0079] a difference between transmission speed ratios of a plurality of gear positions corresponding to the same torque rate is less than a preset speed ratio difference threshold value.

[0080] Further, in one embodiment, the torque rate limiting module of the engine torque ramping function control device is configured to:

[0081] when determining the target torque rate limit value of the engine according to the transmission speed ratio corresponding to the gear position of the transmission, comprising the following steps:

[0082] obtaining a preset torque rate threshold value of the transmission system;

[0083] determining the target torque rate limit value of the engine according to a combination calculation result of the transmission speed ratio corresponding to the gear position of the transmission and the torque rate threshold value.

[0084] Further, in an embodiment, the torque change rate limiting module of the engine torque cushion function control device is configured to:

[0085] In the determination of the target torque change rate limit value of the engine based on the combination of the transmission gear corresponding transmission speed ratio and the torque change rate threshold value,

[0086] The target torque change rate limit value of the engine is the ratio of the torque change rate threshold value and the transmission gear corresponding transmission speed ratio.

[0087] Further, in an embodiment, the torque change rate limiting module of the engine torque cushion function control device is configured to:

[0088] Before the obtaining of the preset torque change rate threshold value of the transmission system, the method comprises the following steps:

[0089] Obtaining the operating mode of the vehicle;

[0090] According to the correspondence between the preset operating mode and the plurality of torque change rate threshold values, determining the torque change rate threshold value for subsequent calculation.

[0091] The functions of each module in the engine torque cushion function control device correspond to the steps in the engine torque cushion function control method embodiment, and the functions and implementation processes will not be repeated here.

[0092] Finally, by determining the appropriate target torque change rate limit value of the engine according to the current transmission gear or the transmission gear corresponding transmission speed ratio before limiting the torque change rate of the engine, the engine torque cushion can be executed with different target torque change rate limit values in different gears, so that the engine torque cushion can be executed with a lower target torque change rate limit value in gears with higher transmission speed ratios, avoiding excessive torque change rate in the transmission system and causing vehicle oscillation, and the engine torque cushion can be executed with a higher target torque change rate limit value in gears with lower transmission speed ratios, achieving the balance between the torque response capability of the vehicle and the smoothness of the torque increasing process.

[0093] In a third aspect, the embodiments of the present application provide an engine torque cushion function control device. The engine torque cushion function control device can be a personal computer (PC), a notebook computer, a server, or other devices with data processing functions.

[0094] Referring to FIG. 3, FIG. 3 is a schematic diagram of a hardware structure of the engine torque cushion function control device according to an embodiment of the present application. In the embodiment of the present application, the engine torque cushion function control device can include a processor, a memory, a communication interface, and a communication bus.

[0095] The communication bus can be of any type, for interconnecting the processor, the memory, and the communication interface.

[0096] The communication interface includes an input / output (I / O) interface, a physical interface, and a logical interface, and the like, which are used to interconnect devices inside the engine torque cushion function control device, and are used to interconnect the engine torque cushion function control device with other devices (for example, other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber interface, an ATM interface, and the like; the user device can be a display (Display), a keyboard (Keyboard), and the like.

[0097] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), and the like.

[0098] The processor can be a general-purpose processor, which can invoke the engine torque cushion function control program stored in the memory and execute the engine torque cushion function control method provided by the embodiment of the present application. For example, the general-purpose processor can be a central processing unit (CPU). The method executed by the engine torque cushion function control program when invoked can refer to each embodiment of the engine torque cushion function control method of the present application, and will not be described here.

[0099] Those skilled in the art can understand that the hardware structure shown in FIG. 3 does not constitute a limitation on the present application, and can include more or fewer components than those shown, or combine certain components, or different component arrangements.

[0100] In a fourth aspect, the embodiment of the present application further provides a readable storage medium.

[0101] The application can be stored on a readable storage medium, and the readable storage medium stores an engine torque cushion function control program. When the engine torque cushion function control program is executed by a processor, the steps of the engine torque cushion function control method described above are implemented.

[0102] The method implemented when the engine torque cushion function control program is executed can refer to the various embodiments of the engine torque cushion function control method of the application, which will not be described again here.

[0103] It should be noted that the above-mentioned sequence numbers of the embodiments of the application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0104] The terms "comprising" and "having" and any variations thereof in the specification and claims of the application and the above-mentioned drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device. The terms "first", "second" and "third" and the like descriptions are used to distinguish different objects, which do not represent the order or limit the types of "first", "second" and "third".

[0105] In the description of the embodiments of the application, "exemplary", "for example" or "for instance" is used to mean as an example, illustration or description. Any embodiment or design scheme described as "exemplary", "for example" or "for instance" in the embodiments of the application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. On the contrary, the use of "exemplary", "for example" or "for instance" is intended to present the relevant concept in a specific manner.

[0106] In the description of the embodiments of the application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text only describes the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone, in addition, in the description of the embodiments of the application, "multiple" means two or more than two.

[0107] In some of the processes described in the embodiments of the application, a plurality of operations or steps are included in a specific order, but it should be understood that these operations or steps can be executed or executed in parallel without the order in which they appear in the embodiments of the application, and the serial number of the operation is only used to distinguish the different operations, and the serial number itself does not represent any execution order. In addition, these processes can include more or fewer operations, and these operations or steps can be executed in sequence or in parallel, and these operations or steps can be combined.

[0108] Those skilled in the art can clearly understand the above-mentioned embodiment method can be realized by means of software and the necessary general hardware platform, of course, can also be through hardware, but in many cases the former is a better implementation. Based on such understanding, the technical solutions of the present application essentially or say the part of the prior art contribution can be embodied in the form of software products, the computer software product is stored in a storage medium (such as ROM / RAM, magnetic disc, optical disc) as described above, including a number of instructions to make a terminal device execute the method described in various embodiments of the present application.

[0109] The above is only the preferred embodiment of the present application, not therefore limit the patent scope of the present application, all use the contents of the present application specification and drawings to make equivalent structure or equivalent process transformation, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An engine torque cushion function control method characterized by, The method comprises: acquiring a gear position of a gearbox of a vehicle; determining a target torque change rate limit value of an engine according to a transmission speed ratio corresponding to the gear position or gear stage of the gearbox; performing engine torque cushioning according to the target torque change rate limit value.

2. The engine torque cushion function control method according to claim 1, characterized by, The step of determining the target torque change rate limit value of the engine according to the transmission speed ratio corresponding to the gear position or gear stage of the gearbox comprises: determining the target torque change rate limit value of the engine according to a preset correspondence between a plurality of gear stages of the gearbox and a plurality of engine torque change rates.

3. The engine torque cushion function control method according to claim 2, characterized in that, The same engine torque change rate corresponds to at least one gear stage.

4. The engine torque cushion function control method according to claim 3, characterized by, The difference between the transmission speed ratios of the plurality of gear stages corresponding to the same torque change rate is less than a preset speed ratio difference threshold value.

5. The engine torque cushion function control method according to claim 1, characterized by, The step of determining the target torque change rate limit value of the engine according to the transmission speed ratio corresponding to the gear stage of the gearbox comprises: acquiring a preset torque change rate threshold value of a transmission system; determining the target torque change rate limit value of the engine according to a combination calculation result of the transmission speed ratio corresponding to the gear stage of the gearbox and the torque change rate threshold value.

6. The engine torque cushion function control method according to claim 5, characterized by, In the step of determining the target torque change rate limit value of the engine according to the combination calculation result of the transmission speed ratio corresponding to the gear stage of the gearbox and the torque change rate threshold value, the target torque change rate limit value of the engine is a ratio of the torque change rate threshold value to the transmission speed ratio corresponding to the gear stage.

7. The engine torque cushion function control method according to claim 5, characterized by, Before the step of acquiring the preset torque change rate threshold value of the transmission system, the method comprises: acquiring an operating mode of the vehicle; determining a torque change rate threshold value to be involved in subsequent calculation according to a preset correspondence between the operating mode and a plurality of torque change rate threshold values.

8. An engine torque cushion function control device characterized by comprising: The engine torque cushioning function control device comprises: an acquisition module configured to acquire a gear position of a gearbox of a vehicle; a torque change rate limiting module configured to determine a target torque change rate limit value of an engine according to a transmission speed ratio corresponding to the gear position or gear stage of the gearbox; a torque cushioning module configured to perform engine torque cushioning according to the target torque change rate limit value.

9. An engine torque cushion function control apparatus characterized by comprising: The engine torque cushioning function control device comprises a processor, a memory, and an engine torque cushioning function control program stored on the memory and executable by the processor, wherein when the engine torque cushioning function control program is executed by the processor, the steps of the engine torque cushioning function control method according to any one of claims 1 to 7 are implemented.

10. A readable storage medium, characterized by, The readable storage medium stores an engine torque cushioning function control program, wherein when the engine torque cushioning function control program is executed by a processor, the steps of the engine torque cushioning function control method according to any one of claims 1 to 7 are implemented.

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