Torque control method, device and equipment of dual clutch power system, and storage medium
By determining the expected indicators in the shift mode of the dual-clutch powertrain, calculating the output torque of the clutch and engine, and adjusting the motor current, the problem of the inability to dynamically adjust the shift speed and smoothness in the dual-clutch transmission was solved, achieving fast and smooth shifting operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-10
AI Technical Summary
In dual-clutch transmission shift control, existing technologies cannot dynamically adjust shift speed and shift smoothness, thus failing to meet users' needs for rapid shifting.
By determining the expected indicators based on the current shifting mode of the user's vehicle, the shifting schemes of the first clutch, the second clutch, and the engine are calculated, and the motor current is adjusted to achieve a balance between smoothness and speed.
It achieves the fastest shift speed while ensuring smooth shifting, guaranteeing users' shifting needs in different scenarios.
Smart Images

Figure CN119617106B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of shift torque control, in particular to a torque control method, device and equipment of a dual clutch power system and a storage medium. BACKGROUND
[0002] At present, in the shift control of a dual clutch transmission, if the torque capacity of an engaging clutch is too large and the disengaging clutch has torque maintaining capability, the clutch will be disengaged. If the clutch is disengaged too early and the engaging clutch does not have enough torque capacity to maintain the engine torque at that time, the engine will knock. Therefore, in order to meet the given shift requirements, it is crucial to precisely control the transmission torque and torque capacity of each clutch.
[0003] In the related art, a fixed shift requirement and control logic are often used in the shift control of a dual clutch transmission, that is, when shifting in the shift control scheme, the demand of a user for the shift speed and shift smoothness cannot be dynamically adjusted, resulting in that the user's demand for as fast shift as possible cannot be met in the actual driving scenario, which needs to be further improved. SUMMARY
[0004] The present application provides a torque control method, device and equipment of a dual clutch power system, which can solve the technical problems in the prior art.
[0005] In a first aspect, the embodiments of the present application provide a torque control method of a dual clutch power system, which adopts the following technical scheme:
[0006] A torque control method of a dual clutch power system, the method comprising:
[0007] In response to a shift signal, according to a set shift mode of the dual clutch power system, determining expected indexes about shift smoothness requirements and shift speed in the shift mode;
[0008] According to the expected indexes, determining a shift scheme in which the first clutch, the second clutch and the engine each meet the expected indexes.
[0009] In combination with the first aspect, in an implementation manner, the transmission shaft transmission ratio of the first clutch, the reduction gear speed ratio of the first clutch, the transmission shaft transmission ratio of the second clutch and the reduction gear speed ratio of the second clutch are acquired.
[0010] determining output torques of the first clutch, the second clutch and the engine respectively satisfying the expected index according to the transmission shaft transmission ratio of the first clutch, the reduction gear speed ratio of the first clutch, the transmission shaft transmission ratio of the second clutch, the reduction gear speed ratio of the second clutch and the expected index;
[0011] determining a shifting scheme according to the output torques of the first clutch, the second clutch and the engine respectively.
[0012] In combination with the first aspect, in an implementation, the determining output torques of the first clutch, the second clutch and the engine respectively satisfying the expected index according to the transmission shaft transmission ratio of the first clutch, the reduction gear speed ratio of the first clutch, the transmission shaft transmission ratio of the second clutch, the reduction gear speed ratio of the second clutch and the expected index adopts the following calculation formula:
[0013]
[0014] wherein, is the expected index, i t1 is the transmission shaft transmission ratio of the first clutch, i f1 is the reduction gear speed ratio of the first clutch, i t2 is the transmission shaft transmission ratio of the second clutch, i f2 is the reduction gear speed ratio of the second clutch, J e+d is the inertia of the engine and the dual mass flywheel, J ct2 is the inertia of the output shaft of the second clutch, T c1 is the output torque of the first clutch, T c2 is the output torque of the second clutch, T e is the output torque of the engine.
[0015] In combination with the first aspect, in an implementation, the determining a shifting scheme according to the output torques of the first clutch, the second clutch and the engine respectively includes the following steps:
[0016] obtaining a first pressure required by the first clutch and a second pressure required by the second clutch according to the output torques of the first clutch and the second clutch;
[0017] adjusting the current required by the motor according to the first pressure and the second pressure.
[0018] In combination with the first aspect, in an implementation, the adjusting the current of the motor according to the first pressure and the second pressure includes:
[0019] adjusting the current required by the motor by a preset reverse force displacement map transmitted to a motor position controller.
[0020] In combination with the first aspect, in an implementation form, the determining, in response to the shift signal, the expected index about shift smoothness requirement and shift speed in the shift mode of the dual-clutch power system according to the set shift mode,
[0021] The expected index corresponding to the set shift mode is determined according to the correspondence between the preset quick shift mode, smooth shift mode and multiple optional shift modes between the quick shift mode and the smooth shift mode and the multiple expected indexes.
[0022] In combination with the first aspect, in an implementation form, the determining, in response to the shift signal, the expected index about shift smoothness requirement and shift speed in the shift mode of the dual-clutch power system according to the set shift mode,
[0023] The mode position of the set shift mode of the dual-clutch power system between the preset quick shift mode and the smooth shift mode is acquired;
[0024] The corresponding expected index is determined in the preset index range according to the mode position; and two ends of the index range correspond to the quick shift mode and the smooth shift mode respectively.
[0025] The second aspect, the embodiment of the application provides a dual-clutch power system torque control device, adopts the following technical scheme:
[0026] A dual-clutch power system torque control device, the device comprises:
[0027] A determining module configured to determine, in response to a shift signal, an expected index about shift smoothness requirement and shift speed in a shift mode of a dual-clutch power system according to the set shift mode;
[0028] A shift module configured to determine a shift scheme in which the first clutch, the second clutch and the engine each satisfy the expected index according to the expected index.
[0029] The third aspect, the embodiment of the application provides a dual-clutch power system torque control device, adopts the following technical scheme:
[0030] A dual-clutch power system torque control device, the dual-clutch power system torque control device comprises a processor, a memory, and a dual-clutch power system torque control program stored in the memory and executable by the processor, wherein the dual-clutch power system torque control program is executed by the processor to implement the steps of the dual-clutch power system torque control method as described above.
[0031] The fourth aspect, the embodiment of the application provides a storage medium, adopts the following technical scheme:
[0032] A storage medium having stored thereon a dual clutch power system torque control program, wherein the dual clutch power system torque control program, when executed by a processor, implements the steps of the dual clutch power system torque control method as described above.
[0033] The technical scheme provided by the embodiments of the present application has the beneficial effects that include:
[0034] By determining the expected index required by the current vehicle between the shift stability and the shift speed according to the shift mode in which the current user vehicle is located, the shift scheme of the first clutch, the second clutch and the engine can be calculated according to the expected index, so that the expected index in the current shift mode can be met during the shift, that is, the fastest shift speed can be achieved while meeting the lowest shift stability required by the current, or the fastest shift speed can be achieved while ensuring the highest stability, and finally, the user can shift according to the current demand. BRIEF DESCRIPTION OF DRAWINGS
[0035] Figure 1 The flowchart of an embodiment of the dual clutch power system torque control method of the present application;
[0036] Figure 2 The functional module schematic diagram of an embodiment of the dual clutch power system torque control device of the present application;
[0037] Figure 3 The hardware structure schematic diagram of the dual clutch power system torque control device involved in the embodiment of the present application. DETAILED DESCRIPTION
[0038] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0039] At present, in the shift control of the dual clutch transmission, if the torque capacity of the engaging clutch is too large and the disengaging clutch has torque maintaining ability, the clutch will be separated. If the clutch is loosened too early and the engaging clutch does not have enough torque capacity to maintain the engine torque at that time, the engine will be knocked. Therefore, in order to meet the given shift requirements, it is very important to precisely control the transmission torque and torque capacity of each clutch.
[0040] In the related art, a fixed shift requirement and control logic are often used in the shift control of a dual-clutch transmission, that is, when shifting in the shift control scheme, the demand of the user for the shift speed and the shift smoothness cannot be dynamically adjusted, resulting in the demand of the user for as fast shifting as possible cannot be met in the actual driving scenario of the user, which needs to be further improved.
[0041] Based on the above problems, the present application provides a dual-clutch power system torque control method, device, equipment and storage medium, the invention points of which are that the expected index required by the current vehicle between the shift smoothness and the shift speed is determined according to the shift mode in which the current user vehicle is located, and the shift scheme of the first clutch, the second clutch and the engine is calculated according to the expected index, so that the expected index in the current shift mode can be met during shifting, that is, the fastest shift speed is achieved while meeting the set shift smoothness, and finally, the user can smoothly shift.
[0042] To make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.
[0043] In a first aspect, the embodiments of the present application provide a dual-clutch power system torque control method.
[0044] In an embodiment, with reference to Figure 1 , Figure 1 The flowchart of the first embodiment of the dual-clutch power system torque control method of the present application is shown in FIG. 1. As shown in FIG. 1, the dual-clutch power system torque control method comprises the following steps. Figure 1
[0045] S100, in response to a shift signal, determining an expected index for shift smoothness and shift speed in a set shift mode of a dual-clutch power system according to the shift mode; wherein the shift smoothness and the shift speed are negatively correlated in different expected indexes;
[0046] S200, determining a shift scheme of the first clutch, the second clutch and the engine that meets the expected index respectively according to the expected index.
[0047] In this embodiment, the expected index required by the current vehicle between the shift stability and the shift speed is determined according to the shift mode in which the current user vehicle is located, and the shift scheme of the first clutch, the second clutch and the engine is calculated according to the expected index, so that the expected index in the current shift mode can be met during the shift. For example, when the vehicle is set to the first shift mode, it is required to meet the lowest stability index while achieving the fastest shift speed that can be achieved, and the related parameters such as torque, pressure applied to the clutch, etc. of the first clutch, the second clutch and the engine in the shift process are adjusted according to the expected index to meet the expected index. Finally, the vehicle can shift in different shift modes according to the shift mode of the current vehicle, thereby meeting the shift requirements of the user in different scenarios.
[0048] Further, the S200, according to the expected index, determines the shift scheme of the first clutch, the second clutch and the engine that meets the expected index, comprising the following steps:
[0049] S210, acquiring the transmission shaft transmission ratio of the first clutch, the reduction gear ratio of the first clutch, the transmission shaft transmission ratio of the second clutch and the reduction gear ratio of the second clutch;
[0050] S220, according to the transmission shaft transmission ratio of the first clutch, the reduction gear ratio of the first clutch, the transmission shaft transmission ratio of the second clutch, the reduction gear ratio of the second clutch and the expected index, determining the output torque of the first clutch, the second clutch and the engine that meets the expected index;
[0051] S230, according to the output torque of the first clutch, the second clutch and the engine, determining the shift scheme.
[0052] In this way, the output torque required by the first clutch, the second clutch and the engine when meeting the current expected index is calculated according to the transmission shaft transmission ratio of the first clutch, the reduction gear ratio of the first clutch, the transmission shaft transmission ratio of the second clutch and the reduction gear ratio of the second clutch, and then other related parameters are determined and used according to the output torque.
[0053] Specifically, in this embodiment, in step S220, according to the transmission shaft transmission ratio of the first clutch, the reduction gear ratio of the first clutch, the transmission shaft transmission ratio of the second clutch, the reduction gear ratio of the second clutch and the expected index, the output torque of the first clutch, the second clutch and the engine that meets the expected index is determined, and the following calculation formula is used:
[0054]
[0055] wherein, is the expected index, i t1 is the transmission shaft transmission ratio of the first clutch, i f1 is the reduction gear ratio of the first clutch, i t2 is the transmission shaft transmission ratio of the second clutch, i f2 is the reduction gear ratio of the second clutch, i e+d is the inertia of the engine and the dual mass flywheel, i ct2 is the inertia of the output shaft of the second clutch, i c1 is the output torque of the first clutch, i c2 is the output torque of the second clutch, i e is the output torque of the engine.
[0056] Further, in an embodiment, the S230, according to the output torque of the first clutch, the second clutch and the engine respectively, determines the shift scheme, comprising the following steps:
[0057] S231, according to the output torque of the first clutch and the second clutch, obtains the first pressure required by the first clutch and the second pressure required by the second clutch;
[0058] S232, according to the first pressure and the second pressure, adjusts the current required by the motor.
[0059] Specifically, in the step of adjusting the current of the motor according to the first pressure and the second pressure, the required current of the motor is adjusted by a preset reverse force displacement map transmitted to a motor position controller.
[0060] In this embodiment, after the required pressure is calculated according to the output torque of the first clutch and the second clutch, the required current is adjusted by a reverse force displacement map transmitted to a motor position controller, and then the energy of the entire power system is fed back.
[0061] Further, in an embodiment, the S100, in response to the shift signal, according to the set shift mode of the dual clutch power system, determines the expected index about the shift smoothness requirement and the shift speed in the shift mode,
[0062] S110, according to the preset quick shift mode, smooth shift mode and the correspondence between the multiple optional shift modes and multiple expected indexes between the quick shift mode and the smooth shift mode, determines the expected index corresponding to the set shift mode.
[0063] In this embodiment, by establishing the correspondence between the multiple selectable shift modes including the quick shift mode and the smooth shift mode and the multiple expected indicators in advance, when the vehicle is in a certain shift mode, the established expected indicators can be quickly determined according to the implementation, and then the explicit expected indicators are determined for the subsequent shift operation.
[0064] In some other embodiments, the step of determining the expected indicators about shift smoothness requirement and shift speed according to the set shift mode of the dual-clutch power system in response to the shift signal comprises the following steps:
[0065] S120, acquiring the mode position of the set shift mode of the dual-clutch power system between the preset quick shift mode and the smooth shift mode;
[0066] S121, determining the corresponding expected indicators in the preset indicator range according to the mode position; wherein the two ends of the indicator range correspond to the quick shift mode and the smooth shift mode respectively
[0067] In this way, the customer can more autonomously select the expected indicators between the smooth shift mode and the quick shift mode, and then the fixed several shift modes are not rigidly adhered to, so that the expected indicators most suitable for the current needs can be calculated according to the determined shift mode, and the subsequent shift operation is performed with the expected indicators, further ensuring that the overall driving experience of the user during the shift operation can be smoothly synchronized with the needs.
[0068] In a second aspect, the embodiments of the present application also provide a dual-clutch power system torque control device.
[0069] In an embodiment, referring to Figure 2 , Figure 2 is a functional module diagram of an embodiment of the dual-clutch power system torque control device of the present application. As shown in Figure 2 , the dual-clutch power system torque control device comprises:
[0070] A determination module configured to determine, in response to a shift signal, expected indicators about shift smoothness requirement and shift speed according to a set shift mode of a dual-clutch power system; wherein the shift smoothness and the shift speed in the expected indicators are negatively correlated;
[0071] A shift module configured to determine a shift scheme in which the first clutch, the second clutch and the engine each satisfy the expected indicators according to the expected indicators.
[0072] The functions of each module in the double-clutch power system torque control device correspond to the steps in the double-clutch power system torque control method, and the functions and implementation processes will not be repeated here.
[0073] In a third aspect, the embodiments of the present application provide a double-clutch power system torque control device. The double-clutch power system torque control device can be a personal computer (PC), a notebook computer, a server, or other device with data processing functions.
[0074] Reference is made to Figure 3 , Figure 3 FIG. 1 is a schematic diagram of a hardware structure of a double-clutch power system torque control device according to an embodiment of the present application. In the embodiments of the present application, the double-clutch power system torque control device can include a processor, a memory, a communication interface, and a communication bus.
[0075] The communication bus can be of any type and is used to interconnect the processor, the memory, and the communication interface.
[0076] The communication interface includes an input / output (I / O) interface, a physical interface, and a logical interface, and other interfaces for interconnecting devices inside the double-clutch power system torque control device, and interfaces for interconnecting the double-clutch power system torque control device with other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber interface, an ATM interface, etc. The user device can be a display (Display), a keyboard (Keyboard), etc.
[0077] 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), etc.
[0078] The processor can be a general processor, which can invoke a dual-clutch power system torque control program stored in the memory and execute the dual-clutch power system torque control method provided in the embodiments of the present application. For example, the general processor can be a central processing unit (CPU). The method executed when the dual-clutch power system torque control program is invoked can refer to the various embodiments of the dual-clutch power system torque control method of the present application, which will not be described herein again.
[0079] Those skilled in the art can understand that the hardware structure shown in the foregoing embodiments is not a limitation on the present application, and can include more or fewer components than those shown, or combine certain components, or different component arrangements. Figure 3 The hardware structure shown in the foregoing embodiments is not a limitation on the present application, and can include more or fewer components than those shown, or combine certain components, or different component arrangements.
[0080] In a fourth aspect, the embodiments of the present application further provide a storage medium.
[0081] The storage medium of the present application stores a dual-clutch power system torque control program, wherein the dual-clutch power system torque control program is executed by a processor to implement the steps of the dual-clutch power system torque control method described above.
[0082] The method implemented when the dual-clutch power system torque control program is executed can refer to the various embodiments of the dual-clutch power system torque control method of the present application, which will not be described herein again.
[0083] It should be noted that the serial numbers of the embodiments of the present application described above are only for description, and do not represent the advantages or disadvantages of the embodiments.
[0084] The terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the above-described drawings are intended to cover not 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, and do not represent the order or limit the types of "first", "second" and "third".
[0085] In the description of the embodiments of the present 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 present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words "exemplary", "for example" or "for instance" are used to present the relevant concept in a specific manner.
[0086] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text only describes the relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone, and in addition, in the description of the embodiments of the present application, "multiple" means two or more than two.
[0087] In some of the processes described in the embodiments of the present 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 in parallel without the order in which they appear in the embodiments of the present application, and the serial number of the operation is only used to distinguish 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.
[0088] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by software and the necessary general hardware platform, of course, it can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, an optical disk) as described above, and includes a plurality of instructions for making a terminal device execute the method described in each embodiment of the present application.
[0089] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A method of torque control for a dual clutch powertrain system, the method comprising: The method comprises: in response to the shift signal, determining an expected index about shift smoothness requirement and shift speed in the shift mode of the set double clutch power system according to the set shift mode of the double clutch power system; wherein the shift smoothness and the shift speed in different expected indexes are negatively correlated; determining a shift scheme of the first clutch, the second clutch and the engine respectively satisfying the expected index according to the expected index; The step of determining a shift scheme of the first clutch, the second clutch and the engine respectively satisfying the expected index according to the expected index comprises the following steps: obtaining the transmission shaft transmission ratio of the first clutch, the reduction gear speed ratio of the first clutch, the transmission shaft transmission ratio of the second clutch and the reduction gear speed ratio of the second clutch; determining the output torque of the first clutch, the second clutch and the engine respectively satisfying the expected index according to the transmission shaft transmission ratio of the first clutch, the reduction gear speed ratio of the first clutch, the transmission shaft transmission ratio of the second clutch, the reduction gear speed ratio of the second clutch and the expected index; determining a shift scheme according to the output torque of the first clutch, the second clutch and the engine respectively; The step of determining the output torque of the first clutch, the second clutch and the engine respectively satisfying the expected index according to the transmission shaft transmission ratio of the first clutch, the reduction gear speed ratio of the first clutch, the transmission shaft transmission ratio of the second clutch, the reduction gear speed ratio of the second clutch and the expected index adopts the following calculation formula: wherein is the expected index, is the transmission shaft ratio of the first clutch, is the reduction gear ratio of the first clutch, is the transmission shaft ratio of the second clutch, is the reduction gear ratio of the second clutch, is the inertia of the engine and the dual mass flywheel, is the inertia of the output shaft of the second clutch, is the output torque of the first clutch, is the output torque of the second clutch, is the output torque of the engine.
2. The dual-clutch powertrain torque control method of claim 1, wherein, The step of determining a shift scheme according to the output torque of the first clutch, the second clutch and the engine respectively comprises the following steps: obtaining the first pressure required by the first clutch and the second pressure required by the second clutch according to the output torque of the first clutch and the second clutch; adjusting the current required by the motor according to the first pressure and the second pressure.
3. The dual-clutch powertrain torque control method of claim 2, wherein, In the step of adjusting the current required by the motor according to the first pressure and the second pressure, adjusting the current required by the motor through the preset reverse force displacement map transmitted to the motor position controller.
4. The dual-clutch powertrain torque control method of claim 1, wherein, In the step of determining an expected index about shift smoothness requirement and shift speed in the shift mode of the set double clutch power system according to the set shift mode of the double clutch power system in response to the shift signal, determining the expected index corresponding to the set shift mode according to the correspondence between the preset quick shift mode, the smooth shift mode and the multiple selectable shift modes between the quick shift mode and the smooth shift mode and the multiple expected indexes.
5. The dual-clutch powertrain torque control method of claim 1, wherein, In the step of determining an expected index about shift smoothness requirement and shift speed in the shift mode of the set double clutch power system according to the set shift mode of the double clutch power system in response to the shift signal, obtaining the mode position of the set shift mode of the double clutch power system between the preset quick shift mode and the smooth shift mode; determining the corresponding expected index in the preset index range according to the mode position; wherein the two ends of the index range correspond to the quick shift mode and the smooth shift mode respectively.
6. A dual clutch powertrain torque control apparatus characterized by, The device comprises: The determining module is configured to determine an expected index about shift smoothness requirement and shift speed in a shift mode of the double clutch power system according to the shift signal and the set shift mode. The shift module is configured to determine a shift scheme of the first clutch, the second clutch and the engine according to the expected index. The shift scheme of the first clutch, the second clutch and the engine according to the expected index comprises the following steps: Obtaining a transmission shaft transmission ratio of the first clutch, a reduction gear speed ratio of the first clutch, a transmission shaft transmission ratio of the second clutch and a reduction gear speed ratio of the second clutch. Determining output torques of the first clutch, the second clutch and the engine according to the transmission shaft transmission ratio of the first clutch, the reduction gear speed ratio of the first clutch, the transmission shaft transmission ratio of the second clutch, the reduction gear speed ratio of the second clutch and the expected index. Determining a shift scheme according to the output torques of the first clutch, the second clutch and the engine. The output torques of the first clutch, the second clutch and the engine according to the transmission shaft transmission ratio of the first clutch, the reduction gear speed ratio of the first clutch, the transmission shaft transmission ratio of the second clutch, the reduction gear speed ratio of the second clutch and the expected index are determined by the following calculation formula: wherein is the expected index, is the transmission shaft ratio of the first clutch, is the reduction gear ratio of the first clutch, is the transmission shaft ratio of the second clutch, is the reduction gear ratio of the second clutch, is the inertia of the engine and the dual mass flywheel, is the inertia of the output shaft of the second clutch, is the output torque of the first clutch, is the output torque of the second clutch, is the output torque of the engine.
7. A dual clutch powertrain torque control apparatus characterized by, The double clutch power system torque control device comprises a processor, a memory and a double clutch power system torque control program stored on the memory and executable by the processor, wherein the double clutch power system torque control program is executed by the processor to implement the steps of the double clutch power system torque control method according to any one of claims 1 to 5.
8. A storage medium, characterized by The storage medium stores a double clutch power system torque control program, wherein the double clutch power system torque control program is executed by the processor to implement the steps of the double clutch power system torque control method according to any one of claims 1 to 5.
Citation Information
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