Torque control method, device, storage medium and electronic equipment of transmission system

Abstract

The present disclosure relates to a torque control method, device, storage medium and electronic device for a transmission system, in order to solve the technical problem that when the gear of the vehicle is in the reverse gear or the forward gear, the driver steps on the brake pedal with his left foot and the accelerator pedal with his right foot, causing the output torque of the engine to increase sharply, thus causing damage to the components of the transmission system. The method comprises: obtaining a gear signal of the vehicle; when the gear signal indicates that the gear is in the reverse gear or the forward gear, if the brake pedal and the accelerator pedal of the vehicle generate valid signals at the same time, obtaining the target torque limit value of the engine of the vehicle according to the current gear of the transmission of the transmission system and the torque bearing capacity of the transmission system set; sending a request signal to the engine so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular, to a torque control method, device, storage medium and electronic equipment of a transmission system. Background Art

[0002] The automobile transmission system is a power transmission device located between the automobile engine and the drive wheels. Its basic function is to transmit the power output by the engine to the drive wheels. The automobile transmission system mainly includes components such as clutch, transmission, final reducer, differential and half shaft. The system works in coordination with the engine to ensure the normal driving of the automobile under various working conditions.

[0003] Most vehicles do not have the launch control function. When the vehicle is starting and in reverse or forward gear, if the driver presses the brake pedal with his left foot and the accelerator pedal to the bottom with his right foot, or if the driver presses the brake pedal with his left foot and the accelerator pedal with his right foot on a slope with traffic jam, the transmission oil temperature will rise sharply, the entire hydraulic system will be in a state of high temperature and high pressure, and the output torque of the engine will increase sharply, which will cause damage to the components of the transmission system. Summary of the invention

[0004] The purpose of the present disclosure is to provide a torque control method, device, storage medium and electronic device for a transmission system, so as to solve the technical problem that when the vehicle is in the reverse gear or the forward gear, the driver steps on the brake pedal with his left foot and the accelerator pedal with his right foot, causing the output torque of the engine to increase sharply, thereby causing damage to the components of the transmission system.

[0005] In order to achieve the above object, a first aspect of the present disclosure provides a torque control method of a transmission system, which is applied to a vehicle, and the method comprises:

[0006] Acquiring a gear position signal of the vehicle;

[0007] When the gear signal indicates that the gear is in the reverse gear or the forward gear, if the brake pedal and the accelerator pedal of the vehicle generate valid signals at the same time, obtaining the target torque limit value of the engine of the vehicle according to the current gear of the transmission of the transmission system and the torque bearing capacity of the transmission system set;

[0008] A request signal is sent to the engine, so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal.

[0009] Optionally, the torque bearing capacity is set in the following manner:

[0010] The torque bearing capacity is determined according to the product of the static torque value of the transmission system and a preset backup coefficient.

[0011] Optionally, the obtaining of a target torque limit value of the engine of the vehicle according to a current gear position of a transmission of the transmission system and a set torque bearing capacity of the transmission system includes:

[0012] The target torque limit value is obtained according to the torque bearing capacity of the transmission system, the gear ratio of the current gear of the transmission of the transmission system, and the transmission efficiency of the engine.

[0013] Optionally, obtaining the target torque limit value according to the torque bearing capacity of the transmission system, the gear ratio of the current gear of the transmission of the transmission system, and the transmission efficiency of the engine includes:

[0014] When the vehicle is in the four-wheel drive low gear mode, the target torque limit value of the engine of the vehicle is calculated according to the following calculation method:

[0015] T x =T max ÷I x ÷I L ÷η;

[0016] Among them, T x represents the target torque limit of the engine, T max Indicates the torque carrying capacity of the transmission system, I x represents the gear ratio of the current gear of the transmission system, η represents the transmission efficiency of the engine, x represents the current gear, I L Indicates the transfer case low gear ratio.

[0017] Optionally, before obtaining the target torque limit value of the engine of the vehicle according to the current gear of the transmission of the transmission system and the torque bearing capacity of the transmission system, the method further includes: determining that the current gear of the transmission of the transmission system is in an overload gear. Optionally, determining that the current gear of the transmission of the transmission system is in an overload gear includes:

[0018] Obtaining a smaller value between a maximum torque value transmitted from the engine to the transmission system and a maximum torque value of a transmission of the transmission system;

[0019] determining a maximum input torque of the transmission system at a current gear of the transmission according to the smaller value;

[0020] When the maximum input torque value is greater than the torque bearing capacity of the transmission system, it is determined that the current gear is in the overload gear.

[0021] Optionally, calculating the maximum input torque of the transmission system at the current gear of the transmission according to the smaller value comprises:

[0022] When the vehicle is in the four-wheel drive low gear mode, the maximum input torque of the transmission system at the current gear of the transmission is calculated according to the following calculation method:

[0023] T x '=T min ×I x ×I L ×η;

[0024] Among them, T min represents the smaller value, T x ' represents the maximum input torque value of the transmission system in the current gear, I x represents the gear ratio of the current gear, η represents the transmission efficiency of the engine, x represents the current gear, I L Indicates the transfer case low gear ratio.

[0025] A second aspect of the present disclosure further provides a torque control device for a transmission system, applied to a vehicle, the device comprising:

[0026] An acquisition module, used to acquire a gear position signal of the vehicle;

[0027] a calculation module, configured to obtain a target torque limit value of the engine of the vehicle according to a current gear of the transmission of the transmission system and a set torque bearing capacity of the transmission system when the gear signal indicates that the gear is in a reverse gear or a forward gear and when the brake pedal and the accelerator pedal of the vehicle simultaneously generate valid signals;

[0028] The request module is used to send a request signal to the engine, so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal.

[0029] The third aspect of the present disclosure further provides a non-temporary computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any one of the methods described in the first aspect above.

[0030] A fourth aspect of the present disclosure further provides an electronic device, comprising:

[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 described in the first aspect above.

[0033] Through the above technical solution, at least the following technical effects can be achieved:

[0034] By acquiring the gear signal of the vehicle, when the gear of the vehicle is in the reverse gear or the forward gear, and the brake pedal and the accelerator pedal of the vehicle generate valid signals at the same time, the target torque limit value of the engine of the vehicle is acquired according to the current gear of the transmission of the transmission system and the torque bearing capacity of the transmission system set, and a request signal is sent to the engine, so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal. Through this method, when the gear of the vehicle is in the reverse gear or the forward gear and the driver steps on the brake pedal with his left foot and the accelerator pedal with his right foot, the output torque of the engine can be limited, thereby solving the technical problem that the parts of the transmission system are damaged due to the sharp increase of the output torque of the engine, and protecting the parts of the transmission system while meeting the power requirements of the vehicle.

[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 1 is a flow chart of a torque control method of a transmission system provided by an embodiment of the present disclosure;

[0038] Figure 2 is a flow chart of another torque control method for a transmission system provided by an embodiment of the present disclosure;

[0039] Figure 3 is a block diagram of a torque control device for a transmission system provided by an embodiment of the present disclosure;

[0040] Figure 4 It is a block diagram of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] 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.

[0042] It should be understood that the various steps described in the method implementation of the present disclosure may be performed in different orders and / or in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect. The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below.

[0043] It should be noted that the concepts of "first", "second", 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. In addition, the modifications of "one" and "multiple" 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, they should be understood as "one or more".

[0044] Launch start is an acceleration technology that uses the gearbox to adjust the engine speed to the output platform of maximum torque, so that the engine starts to output torque at the maximum output torque at the moment of starting, achieving the best acceleration. However, general vehicles usually do not have the launch start function. When the vehicle is in the process of starting and is in reverse gear or forward gear, the driver's left foot presses the brake pedal tightly and the right foot presses the accelerator pedal to the bottom, or when the left foot presses the brake pedal and the right foot presses the accelerator pedal on a slope with traffic jams, the transmission oil temperature will rise sharply, the entire hydraulic system will be in a high temperature and high pressure state, and the engine's output torque will increase sharply, causing damage to the transmission system components.

[0045] In view of this, the present invention provides a torque control method, device, storage medium and electronic device for a transmission system to solve the technical problem that when the vehicle is in the reverse gear or the forward gear, the driver presses the brake pedal with his left foot and the accelerator pedal with his right foot, causing the output torque of the engine to increase sharply, thereby causing damage to the components of the transmission system.

[0046] The present disclosure provides a torque control method for a transmission system, which is applied to a vehicle, such as Figure 1 As shown, the method includes:

[0047] S101. Acquire a gear position signal of the vehicle.

[0048] S102. When the gear signal indicates that the gear is in reverse gear or forward gear, and if the brake pedal and the accelerator pedal of the vehicle generate valid signals at the same time, obtain the target torque limit value of the engine of the vehicle according to the current gear of the transmission of the transmission system and the set torque bearing capacity of the transmission system.

[0049] S103: Sending a request signal to the engine, so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal.

[0050] By adopting the above method, the gear position signal of the vehicle is obtained. When the gear position of the vehicle is in the reverse gear or the forward gear, and the brake pedal and the accelerator pedal of the vehicle generate valid signals at the same time, the target torque limit value of the engine of the vehicle is obtained according to the current gear position of the transmission of the transmission system and the torque bearing capacity of the transmission system set, and a request signal is sent to the engine so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal. By using this method, when the gear position of the vehicle is in the reverse gear or the forward gear and the driver steps on the brake pedal with his left foot and the accelerator pedal with his right foot, the output torque of the engine can be limited, thereby solving the technical problem that the parts of the transmission system are damaged due to the sharp increase of the output torque of the engine, and protecting the parts of the transmission system while meeting the power requirements of the vehicle.

[0051] In order to make it easier for those skilled in the art to understand the method provided by the embodiments of the present disclosure, Figure 1 The above method steps are described in detail.

[0052] In a possible implementation manner, the torque bearing capacity is determined according to the product of a static torque value of the transmission system and a preset backup coefficient.

[0053] For example, the torque carrying capacity of the transmission system can be calculated according to the following calculation method:

[0054] T max =T0×n;

[0055] Among them, T max It indicates the torque bearing capacity of the transmission system, T0 indicates the static torque value of the transmission system, and n indicates the preset reserve coefficient. It is worth noting that the static torque value of the transmission system is designed based on the smaller value of the maximum output torque of the engine and the vehicle slip torque, which is generally the vehicle slip torque.

[0056] In a possible implementation, before obtaining the target torque limit value of the engine of the vehicle based on the current gear of the transmission of the transmission system and the set torque bearing capacity of the transmission system, it is determined that the current gear of the transmission of the transmission system is in an overload gear.

[0057] Optionally, a smaller value between a maximum torque value transmitted from the engine to the transmission system and a maximum torque value of a transmission of the transmission system is obtained, and then a maximum input torque of the transmission system at a current gear of the transmission is calculated according to the smaller value, and when the maximum input torque value is greater than the torque bearing capacity of the transmission system, it is determined that the current gear is in an overload gear. The maximum torque value of the transmission is a limited torque value set by the transmission.

[0058] Optionally, the maximum input torque of the transmission system at the current gear of the transmission is calculated according to the following calculation method:

[0059] T x '=T min ×I x ×η;

[0060] Among them, T min represents the smaller value, T x ' represents the maximum input torque value of the transmission system in the current gear of the transmission, I x represents the gear ratio of the current gear of the transmission, η represents the transmission efficiency of the engine, and x represents the current gear of the transmission.

[0061] Optionally, when the vehicle is in a four-wheel drive low gear mode, the maximum input torque of the transmission system at the current gear of the transmission is calculated according to the following calculation method:

[0062] T x '=T min ×I x ×I L ×η;

[0063] Among them, I L Indicates the transfer case low gear ratio.

[0064] In a possible implementation, the target torque limit value is obtained according to the torque bearing capacity of the transmission system, the gear ratio of the current gear of the transmission of the transmission system, and the transmission efficiency of the engine.

[0065] Optionally, the target torque limit value of the engine of the vehicle is calculated according to the following calculation method:

[0066] T x =T max ÷Ix ÷η;

[0067] Among them, T x Indicates the target torque limit of the engine, T max Indicates the torque bearing capacity of the transmission system, I x represents the gear ratio of the current gear of the transmission, η represents the transmission efficiency of the engine, and x represents the current gear of the transmission.

[0068] Optionally, when the vehicle is in the four-wheel drive low gear mode, the target engine torque limit value of the vehicle is calculated according to the following calculation formula:

[0069] T x =T max ÷I x ÷I L ÷η;

[0070] Among them, I L Indicates the transfer case low gear ratio.

[0071] For example, the vehicle parameters of a certain vehicle are as follows: the static torque value of the transmission system T0 = 1363N.m, the preset reserve coefficient is 1.8, the maximum torque value transmitted from the engine to the transmission system is 1363N.m, the maximum torque value of the transmission is 550N.m, the transmission efficiency of the engine is 0.95, and the transfer case low speed gear ratio is 2.48. The torque bearing capacity T of the vehicle's transmission system is obtained by calculation. max =2453.4Nm. The torque bearing capacity of the transmission system is compared with the maximum input torque of the transmission system in the current gear of the transmission, and the obtained overload gear is shown in Table 1. The gear ratios of different gears of the transmission are shown in Table 2 below. The smaller value between the maximum transmission torque value transmitted from the engine to the transmission system and the maximum torque value of the transmission is the maximum torque value of the transmission, that is, 550N.m.

[0072] Table 1

[0073]

[0074]

[0075] Table 2

[0076] Transmission gear Ⅰ gear Ⅱ gear Ⅲ gear Ⅳ gear R block <![CDATA[Gear ratio I x > 4.714 3.143 2.106 1.667 3.317

[0077] Further, the result of calculating the target torque limit value of the engine for the gear of the overloaded transmission is shown in Table 3. In addition, the calculated result can be rounded down to obtain the optimized torque limit value sent to the engine, which can meet the power requirements of the vehicle without damaging the components of the transmission system.

[0078] Table 3

[0079] Current gear of the transmission Target torque limit (unit: Nm) Optimized torque limit value (unit: Nm) Ⅰ gear 547.8418 540 Four-wheel drive low gear mode Ⅰ 220.904 220 Four-wheel drive low gear mode II 331.3208 330 Four-wheel drive low gear mode III gear 494.464 490 Four-wheel drive low gear mode R gear 313.9407 310

[0080] It is worth noting that the specific parameters of the vehicle mentioned in the embodiments of the present disclosure are only examples, and the present disclosure does not impose any specific limitations on this.

[0081] In order to make it easier for those skilled in the art to understand the method provided by the embodiment of the present disclosure, the steps of the torque control method of the transmission system provided by the embodiment of the present disclosure are described in detail below. Figure 2 As shown, the method includes:

[0082] S201. Obtain a gear signal of the vehicle, and determine whether the gear signal indicates that the gear of the vehicle is in a reverse gear or a forward gear.

[0083] S202: Determine whether the brake pedal and accelerator pedal of the vehicle generate valid signals at the same time.

[0084] S203, obtaining the current gear information of the transmission, and determining whether the current gear is in an overload gear.

[0085] Further, if the vehicle's gear is in the reverse gear or the forward gear, the vehicle's brake pedal and accelerator pedal simultaneously generate valid signals, and the current gear is in the overload gear, execute step S204, otherwise execute step S206.

[0086] S204: Obtain a target torque limit value of the engine of the vehicle according to a current gear position of the transmission of the transmission system and a torque bearing capacity of the transmission system.

[0087] S205: Send a request signal to the engine, so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal.

[0088] S206 : Request the engine to keep its output torque unchanged.

[0089] By adopting the above method, the gear signal of the vehicle is obtained. When the gear of the vehicle is in the reverse gear or the forward gear, and the brake pedal and the accelerator pedal of the vehicle generate valid signals at the same time, it is further determined whether the current gear of the transmission of the transmission system is in the overload gear. When the current gear of the transmission is in the overload gear, the target torque limit value of the engine of the vehicle is obtained according to the current gear of the transmission and the torque bearing capacity of the transmission system, and a request signal is sent to the engine so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal. By using this method, when the gear of the vehicle is in the reverse gear or the forward gear and the driver steps on the brake pedal with his left foot and the accelerator pedal with his right foot, the output torque of the engine can be limited, thereby solving the technical problem that the parts of the transmission system are damaged due to the sharp increase of the output torque of the engine, and protecting the parts of the transmission system while meeting the power requirements of the vehicle.

[0090] Figure 3 is a block diagram of a torque control device for a transmission system according to an exemplary embodiment. The device 300 is applied to a vehicle and includes:

[0091] An acquisition module 301 is used to acquire a gear position signal of the vehicle;

[0092] A calculation module 302 is used to obtain a target torque limit value of the engine of the vehicle according to a current gear of the transmission of the transmission system and a set torque bearing capacity of the transmission system when the gear signal indicates that the gear is in a reverse gear or a forward gear and when the brake pedal and the accelerator pedal of the vehicle generate valid signals at the same time;

[0093] The request module 303 is used to send a request signal to the engine, so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal.

[0094] The above device is used to obtain the gear signal of the vehicle. When the gear of the vehicle is in the reverse gear or the forward gear, and the brake pedal and the accelerator pedal of the vehicle generate valid signals at the same time, the target torque limit value of the engine of the vehicle is obtained according to the current gear of the transmission of the transmission system and the torque bearing capacity of the transmission system, and a request signal is sent to the engine so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal. Through this device, when the gear of the vehicle is in the reverse gear or the forward gear and the driver steps on the brake pedal with his left foot and the accelerator pedal with his right foot, the output torque of the engine can be limited, thereby solving the technical problem that the parts of the transmission system are damaged due to the sharp increase of the output torque of the engine, and protecting the parts of the transmission system while meeting the power requirements of the vehicle.

[0095] Optionally, the torque bearing capacity is set in the following manner:

[0096] The torque bearing capacity is determined according to the product of the static torque value of the transmission system and a preset backup coefficient.

[0097] Optionally, the calculation module 302 is used to:

[0098] The target torque limit value is obtained according to the torque bearing capacity of the transmission system, the gear ratio of the current gear of the transmission of the transmission system, and the transmission efficiency of the engine. Optionally, the target torque limit value is obtained according to the torque bearing capacity of the transmission system, the gear ratio of the current gear of the transmission of the transmission system, and the transmission efficiency of the engine, including:

[0099] When the vehicle is in the four-wheel drive low gear mode, the target torque limit value of the engine of the vehicle is calculated according to the following calculation method:

[0100] T x =T max ÷I x ÷I L ÷η;

[0101] Among them, T x represents the target torque limit of the engine, T max Indicates the torque carrying capacity of the transmission system, I x represents the gear ratio of the current gear of the transmission system, η represents the transmission efficiency of the engine, x represents the current gear, I L Indicates the transfer case low gear ratio.

[0102] Optionally, before obtaining the target torque limit value of the engine of the vehicle based on the current gear of the transmission of the transmission system and the set torque bearing capacity of the transmission system, the device is also used to: determine that the current gear of the transmission of the transmission system is in an overload gear.

[0103] Optionally, determining that the current gear position of the transmission of the transmission system is in an overload gear position comprises:

[0104] Obtaining a smaller value between a maximum torque value transmitted from the engine to the transmission system and a maximum torque value of a transmission of the transmission system;

[0105] determining a maximum input torque of the transmission system at a current gear of the transmission according to the smaller value;

[0106] When the maximum input torque value is greater than the torque bearing capacity of the transmission system, it is determined that the current gear is in the overload gear.

[0107] Optionally, calculating the maximum input torque of the transmission system at the current gear of the transmission according to the smaller value comprises:

[0108] When the vehicle is in the four-wheel drive low gear mode, the maximum input torque of the transmission system at the current gear of the transmission is calculated according to the following calculation method:

[0109] T x '=T min ×I x ×I L ×η;

[0110] Among them, T min represents the smaller value, T x ' represents the maximum input torque value of the transmission system in the current gear, I x represents the gear ratio of the current gear, η represents the transmission efficiency of the engine, x represents the current gear, I L Indicates the transfer case low gear ratio.

[0111] 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.

[0112] The embodiment of the present disclosure also provides a non-temporary computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the torque control method for a transmission system provided in the above method embodiment.

[0113] The present disclosure also provides an electronic device, including:

[0114] a memory having a computer program stored thereon;

[0115] The processor is used to execute the computer program in the memory to implement the steps of the torque control method of the transmission system provided by the above method embodiment.

[0116] Figure 4 4 is a block diagram of an electronic device 400 according to an exemplary embodiment. For example, the electronic device 400 may be provided as a server. Figure 4 The electronic device 400 includes a processor 422, which may be one or more, and a memory 432 for storing a computer program executable by the processor 422. The computer program stored in the memory 432 may include one or more modules, each corresponding to a set of instructions. In addition, the processor 422 may be configured to execute the computer program to perform the above-mentioned torque control method of the transmission system.

[0117] In addition, the electronic device 400 may further include a power supply component 426 and a communication component 450. The power supply component 426 may be configured to perform power management of the electronic device 400, and the communication component 450 may be configured to implement communication of the electronic device 400, for example, wired or wireless communication. In addition, the electronic device 400 may further include an input / output (I / O) interface 458. The electronic device 400 may operate based on an operating system stored in the memory 432, such as Windows Server 2008. TM , Mac OSX TM , Unix TM , Linux TM etc.

[0118] 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 torque control method of the transmission system described above are implemented. For example, the non-transitory computer-readable storage medium may be the memory 432 including the program instructions, and the program instructions may be executed by the processor 422 of the electronic device 400 to complete the torque control method of the transmission system described above.

[0119] In another exemplary embodiment, a computer program product is also 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 torque control method of the transmission system when executed by the programmable device.

[0120] 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 torque control method for a transmission system, characterized in that: Applied to a vehicle, the method comprises: Acquiring a gear position signal of the vehicle; When the gear signal indicates that the gear is in the reverse gear or the forward gear, if the brake pedal and the accelerator pedal of the vehicle generate valid signals at the same time, obtaining the target torque limit value of the engine of the vehicle according to the current gear of the transmission of the transmission system and the torque bearing capacity of the transmission system set; A request signal is sent to the engine, so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal.

2. The method according to claim 1, characterized in that The torque capacity is set as follows: The torque bearing capacity is determined according to the product of the static torque value of the transmission system and a preset backup coefficient.

3. The method according to claim 1 or 2, characterized in that: The step of obtaining a target torque limit value of the engine of the vehicle according to the current gear position of the transmission of the transmission system and the set torque bearing capacity of the transmission system includes: The target torque limit value is obtained according to the torque bearing capacity of the transmission system, the gear ratio of the current gear of the transmission of the transmission system, and the transmission efficiency of the engine.

4. The method according to claim 3, characterized in that The step of obtaining the target torque limit value according to the torque bearing capacity of the transmission system, the gear ratio of the current gear of the transmission of the transmission system, and the transmission efficiency of the engine includes: When the vehicle is in the four-wheel drive low gear mode, the target torque limit value of the engine of the vehicle is calculated according to the following calculation method: T x =T max ÷I x ÷I L ÷η; Among them, T x represents the target torque limit of the engine, T max Indicates the torque carrying capacity of the transmission system, I x represents the gear ratio of the current gear of the transmission system, η represents the transmission efficiency of the engine, x represents the current gear, I L Indicates the transfer case low gear ratio.

5. The method according to claim 1, characterized in that Before obtaining the target torque limit value of the engine of the vehicle according to the current gear of the transmission of the transmission system and the set torque bearing capacity of the transmission system, the method also includes: determining that the current gear of the transmission of the transmission system is in an overload gear.

6. The method according to claim 5, characterized in that The step of determining that the current gear position of the transmission of the transmission system is in the overload gear position comprises: Obtaining a smaller value between a maximum torque value transmitted from the engine to the transmission system and a maximum torque value of a transmission of the transmission system; determining a maximum input torque of the transmission system at a current gear of the transmission according to the smaller value; When the maximum input torque value is greater than the torque bearing capacity of the transmission system, it is determined that the current gear is in the overload gear.

7. The method according to claim 6, characterized in that The step of calculating the maximum input torque of the transmission system at the current gear of the transmission according to the smaller value comprises: When the vehicle is in the four-wheel drive low gear mode, the maximum input torque of the transmission system at the current gear of the transmission is calculated according to the following calculation method: T x ’=T min ×I x ×I L ×η; Among them, T min represents the smaller value, T x ' represents the maximum input torque value of the transmission system in the current gear, I x represents the gear ratio of the current gear, η represents the transmission efficiency of the engine, x represents the current gear, I L Indicates the transfer case low gear ratio.

8. A torque control device for a transmission system, characterized in that: Applied to a vehicle, the device comprises: An acquisition module, used to acquire a gear position signal of the vehicle; a calculation module, configured to obtain a target torque limit value of the engine of the vehicle according to a current gear of the transmission of the transmission system and a set torque bearing capacity of the transmission system when the gear signal indicates that the gear is in a reverse gear or a forward gear and when the brake pedal and the accelerator pedal of the vehicle simultaneously generate valid signals; The request module is used to send a request signal to the engine, so that the engine reduces the output torque of the engine to the target torque limit value after receiving the request signal.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method described in any one of claims 1 to 7 are implemented.

10. 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.

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