A method, device, equipment and vehicle for controlling the rotation speed of an engine

Abstract

The application discloses a kind of engine speed control method, device, equipment and vehicle, it is suitable for including the vehicle of mechanical type automatic transmission gearbox, method includes: obtaining the shift request information sent by gearbox controller;Wherein, shift request information includes the current gear of gearbox and target gear;According to shift request information and the preset shift information of gearbox, determine the speed correction parameter required by engine in shift speed regulation stage;Wherein, preset shift information includes the action requirement of gearbox corresponding to various shift request information;In shift speed regulation stage, the speed of engine is controlled based on speed correction parameter.The embodiment of the application determines the speed correction parameter required by engine in shift speed regulation stage according to the action requirement of gearbox corresponding to shift request information, can accurately identify the working condition in shift speed regulation stage, meets the various speed regulation and control requirements of gearbox controller.

Description

Technical Field

[0001] This invention relates to the field of engine speed control technology, and more particularly to an engine speed control method, device, equipment, and vehicle. Background Technology

[0002] An automated mechanical transmission (AMT) is a device that adds an electronically controlled actuator to a manual transmission to replace manual operation and achieve automatic gear shifting. During the matching process with the engine, the AMT transmission controls and limits engine torque and speed to achieve upshifting and downshifting, thus completing the automatic gear shifting process.

[0003] However, the shift times of different gears in an AMT transmission vary. When only one gearbox is operating, the shift synchronization time is short; when the front, rear, and master gearboxes operate simultaneously, the shift synchronization time is longer. Therefore, the synchronization time control of the automatic transmission control unit (TCU) during gear shifts also varies. Currently, the electronic control unit (ECU) cannot recognize this operating condition and cannot effectively respond to the TCU's speed response requirements under each shift request. Summary of the Invention

[0004] This invention provides an engine speed control method, device, equipment, and vehicle that can accurately identify the operating conditions during the gear shifting and speed adjustment phase, thus meeting the various speed control requirements of the transmission controller.

[0005] In a first aspect, embodiments of the present invention provide an engine speed control method, applicable to vehicles including mechanical automatic transmissions, comprising:

[0006] Obtain shift request information sent by the transmission controller; wherein, the shift request information includes the current gear and the target gear of the transmission;

[0007] Based on the shift request information and the preset shift information of the transmission, the required engine speed correction parameters are determined during the shift speed adjustment phase; wherein, the preset shift information includes the action requirements of the transmission corresponding to various shift request information;

[0008] During the gear shifting and speed adjustment phase, the engine speed is controlled based on the speed correction parameter.

[0009] Optionally, determining the engine speed correction parameters required during the shift adjustment phase based on the shift request information and the preset shift information of the transmission includes:

[0010] Based on the shift request information and the preset shift information of the transmission, the action requirements of the transmission are determined;

[0011] Based on the operational requirements of the transmission, determine the required engine speed correction parameters for the shifting and speed adjustment phase.

[0012] Optionally, determining the engine speed correction parameters required during the shifting and speed adjustment phase based on the operation requirements of the transmission includes:

[0013] When the front gearbox, main gearbox, or rear gearbox of the transmission operates independently, the speed correction parameter is determined to be the first preset speed correction parameter;

[0014] When any two of the front, main, and rear gearboxes of the transmission are activated, the speed correction parameter is determined to be the second preset speed correction parameter.

[0015] When the front gearbox, main gearbox, and rear gearbox of the transmission are all in motion, the speed correction parameter is determined to be the third preset speed correction parameter.

[0016] The first preset speed correction parameter is greater than the second preset speed correction parameter, and the second preset speed correction parameter is greater than the third preset speed correction parameter.

[0017] Optionally, before obtaining the shift request information sent by the transmission controller, the following steps are also included:

[0018] The synchronization time of various shifting processes of the transmission during the self-learning shifting and speed adjustment phase;

[0019] The speed correction parameters corresponding to the shift speed adjustment stage of various shift processes are determined based on the synchronization time.

[0020] After obtaining the shift request information sent by the transmission controller, the process also includes:

[0021] During the gear shifting and speed adjustment phase, the engine speed is controlled based on the speed correction parameter.

[0022] Optionally, determining the speed correction parameters corresponding to the shifting and speed adjustment stages of various shifting processes based on the synchronization time includes:

[0023] When the synchronization time is within the first time range, the speed correction parameter is determined to be the first preset speed correction parameter;

[0024] When the synchronization time is within the second time range, the speed correction parameter is determined to be the second preset speed correction parameter;

[0025] When the synchronization time is within the third time range, the speed correction parameter is determined to be the third preset speed correction parameter;

[0026] Wherein, the first time range is smaller than the second time range, and the second time range is smaller than the third time range; the first preset speed correction parameter is greater than the second preset speed correction parameter, and the second preset speed correction parameter is greater than the third preset speed correction parameter.

[0027] Optionally, after obtaining the shift request information sent by the transmission controller, the method further includes:

[0028] Get the current accelerator pedal opening information;

[0029] The opening degree of the gas engine's throttle valve is determined based on the shift request information and the accelerator pedal opening information.

[0030] Secondly, embodiments of the present invention also provide an engine speed control device, comprising:

[0031] The shift request information acquisition module is used to acquire shift request information sent by the transmission controller; wherein, the shift request information includes the current gear and the target gear of the transmission;

[0032] The speed correction parameter determination module is used to determine the speed correction parameters required by the engine during the shift speed adjustment stage based on the shift request information obtained by the shift request information acquisition module and the preset shift information of the transmission; wherein, the preset shift information includes the action requirements of the transmission corresponding to various shift request information.

[0033] A speed control module is used to control the engine speed based on the speed correction parameters determined by the speed correction parameter determination module during the gear shifting and speed adjustment phase.

[0034] Optionally, the device may also include:

[0035] The synchronization time self-learning module is used to self-learn the synchronization time of various shifting processes of the gearbox during the shifting and speed adjustment phase.

[0036] The speed correction parameter determination module is also used to determine the speed correction parameters corresponding to the shifting and speed adjustment stages of various shifting processes based on the synchronization time learned by the synchronization time self-learning module.

[0037] The speed control module is further configured to control the engine speed based on the speed correction parameter during the shift speed adjustment phase after the shift request information acquisition module acquires the shift request information sent by the transmission controller.

[0038] Thirdly, embodiments of the present invention also provide an engine speed control device, characterized in that the engine speed control device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the engine speed control method as described in any embodiment of the first aspect.

[0039] Fourthly, embodiments of the present invention also provide a vehicle including an engine speed control device as described in the third aspect.

[0040] This invention discloses an engine speed control method, apparatus, device, and vehicle, applicable to vehicles including mechanical automatic transmissions. The method includes: acquiring shift request information sent by the transmission controller; wherein the shift request information includes the current gear and target gear of the transmission; determining the required engine speed correction parameters for the shift speed adjustment phase based on the shift request information and preset shift information of the transmission; wherein the preset shift information includes the transmission's operational requirements corresponding to various shift request information; and controlling the engine speed based on the speed correction parameters during the shift speed adjustment phase. This invention determines the required engine speed correction parameters for the shift speed adjustment phase based on the transmission's operational requirements corresponding to the shift request information, enabling accurate identification of the operating conditions during the shift speed adjustment phase and meeting various speed control requirements of the transmission controller.

[0041] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A flowchart illustrating an engine speed control method provided in an embodiment of the present invention;

[0044] Figure 2 A flowchart of another engine speed control method provided in an embodiment of the present invention;

[0045] Figure 3 A flowchart of another engine speed control method provided in an embodiment of the present invention;

[0046] Figure 4 A flowchart of another engine speed control method provided in an embodiment of the present invention;

[0047] Figure 5 A schematic diagram of the structure of an engine speed control device provided in an embodiment of the present invention;

[0048] Figure 6 A schematic diagram of another engine speed control device provided in an embodiment of the present invention;

[0049] Figure 7 This is a schematic diagram of the structure of an engine speed control device provided as an embodiment of the present invention. Detailed Implementation

[0050] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0051] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0052] Figure 1 This is a flowchart illustrating an engine speed control method according to an embodiment of the present invention. This embodiment is applicable to situations where engine speed is adjusted during gear shifting and speed regulation, and is applicable to vehicles including mechanical automatic transmissions. The method can be executed by an engine speed control device, which can be implemented in hardware and / or software and can be configured within an engine speed control system. (Reference) Figure 1 The method includes the following steps:

[0053] S110. Obtain the shift request information sent by the transmission controller; wherein, the shift request information includes the current gear and the target gear of the transmission.

[0054] Specifically, the ECU and TCU can exchange information. By obtaining information such as the current gear and target gear sent by the TCU, the ECU can identify the gear according to the preset shift information inside the ECU and correct the engine control parameters for different shift states.

[0055] S120. Based on the shift request information and the preset shift information of the transmission, determine the engine speed correction parameters required during the shift speed adjustment phase; wherein, the preset shift information includes the transmission action requirements corresponding to various shift request information.

[0056] Specifically, the preset shift information of the transmission is set by the user according to the actual situation. The corresponding action requirements of the transmission for various shift request information can be single-transmission action, two-transmission action, or three-transmission action. The speed correction parameters can include PI correction parameters or PID correction parameters.

[0057] Understandably, because the operational requirements of the transmission vary, the synchronization time of different shift processes during the shift speed adjustment phase may not be the same. Within this synchronization time, the ECU needs to adjust the engine speed to the target speed. However, current technology does not differentiate the synchronization time required for different shift processes, and can only adjust the engine speed according to fixed speed correction parameters, which cannot effectively respond to the TCU's speed response requirements under various shift requests. For example, if the transmission requires three-stage operation with a longer synchronization time, adjusting according to the original fixed speed control parameters will cause engine speed overshoot; if the transmission requires one-stage operation with a shorter synchronization time, adjusting according to the original fixed speed control parameters will result in the engine speed not reaching the target speed. This embodiment of the invention determines the required engine speed correction parameters during the shift speed adjustment phase based on the transmission's operational requirements corresponding to various shift request information, thus effectively responding to the TCU's speed response requirements under various shift requests.

[0058] S130: During the gear shifting and speed adjustment phase, the engine speed is controlled based on the speed correction parameters.

[0059] Specifically, based on the gearbox's action requirements corresponding to various shift request information, the required engine speed correction parameters for the shift speed adjustment stage are determined. Then, the engine speed is controlled based on the speed correction parameters during the shift speed adjustment stage, which makes the engine speed after speed adjustment closer to the target speed.

[0060] According to the gearbox operation requirements corresponding to the gear shift request information, the embodiments of the present invention determine the engine speed correction parameters required during the gear shift speed adjustment stage, which can accurately identify the operating conditions during the gear shift speed adjustment stage and meet the various speed control requirements of the gearbox controller.

[0061] Figure 2 A flowchart of another engine speed control method provided in an embodiment of the present invention is shown below. Figure 2 The method includes the following steps:

[0062] S210. Obtain the shift request information sent by the transmission controller; wherein, the shift request information includes the current gear and the target gear of the transmission.

[0063] S221. Determine the gearbox's action requirements based on the gearbox's shift request information and the gearbox's preset shift information.

[0064] Specifically, Table 1 is a preset shift information table of a gearbox provided in an embodiment of the present invention.

[0065] Table 1

[0066] Current gear Target gear Front box (whether it's working) Main unit (is it active?) Rear box (whether it's working) 1 2 yes no no 1 3 yes yes no … … … … … 2 3 yes yes no 2 4 yes no no … … … … … 15 16 yes no no 15 14 yes yes yes 15 13 no yes yes 16 15 no yes yes 16 14 yes yes yes

[0067] Referring to Table 1, based on the current gear and target gear of the transmission and the preset shift information of the transmission, the action requirements of the front gearbox, master gearbox and rear gearbox of the AMT transmission can be obtained.

[0068] S222. Determine the engine speed correction parameters required during the gear shifting and speed adjustment phase based on the gearbox's operational requirements.

[0069] It is understandable that the operation requirements of the transmission include single-gear operation, two-gear operation, and three-gear operation. Based on the different operation requirements of the transmission, the engine speed correction parameters required for the corresponding shift speed adjustment stage can be determined.

[0070] Understandable Figure 1 Step S120 in the embodiment may include steps S221 and S222.

[0071] S230 controls the engine speed based on speed correction parameters during the gear shifting and speed adjustment phase.

[0072] Optionally, based on the above embodiments, step S222 includes: when the front gearbox, main gearbox, or rear gearbox of the transmission operates alone, determining the speed correction parameter as a first preset speed correction parameter; when any two of the front gearbox, main gearbox, and rear gearbox of the transmission operate, determining the speed correction parameter as a second preset speed correction parameter; when the front gearbox, main gearbox, and rear gearbox of the transmission all operate, determining the speed correction parameter as a third preset speed correction parameter; the first preset speed correction parameter is greater than the second preset speed correction parameter, and the second preset speed correction parameter is greater than the third preset speed correction parameter.

[0073] The first preset speed correction parameter, the second preset speed correction parameter, and the third preset speed correction parameter can be calibrated by the user in advance.

[0074] In this embodiment of the invention, the ECU obtains the shift request information sent by the transmission controller. Based on the shift request information and the preset shift information of the transmission, the ECU can determine the operation requirements of the transmission and apply different corrections at different shift speed adjustment stages to adapt to different shift speed adjustment response requirements of the transmission controller.

[0075] Figure 3 A flowchart of another engine speed control method provided in an embodiment of the present invention is shown below. Figure 3 The method includes the following steps:

[0076] S310, the synchronization time of various shifting processes of the transmission during the self-learning shifting and speed adjustment stage.

[0077] S320. Determine the speed correction parameters corresponding to the shifting and speed adjustment stages of various shifting processes based on the synchronization time.

[0078] It should be noted that the synchronization time of various gear shifting processes varies due to the different actions of the front, rear, and main gearboxes. By learning the synchronization time of various gear shifting processes during the self-learning shifting speed adjustment phase, the corresponding synchronization time of the gearbox during the shifting speed adjustment phase can be directly obtained based on the shifting request information sent by the gearbox controller. Thus, the speed correction parameters corresponding to the shifting speed adjustment phase of various gear shifting processes can be determined based on the synchronization time.

[0079] S330, Obtain shift request information sent by the transmission controller; wherein, the shift request information includes the current gear and the target gear of the transmission.

[0080] S340 controls the engine speed based on speed correction parameters during the gear shifting and speed adjustment phase.

[0081] Optionally, based on the above embodiments, step S320 includes: when the synchronization time is within a first time range, determining the speed correction parameter as a first preset speed correction parameter; when the synchronization time is within a second time range, determining the speed correction parameter as a second preset speed correction parameter; when the synchronization time is within a third time range, determining the speed correction parameter as a third preset speed correction parameter; wherein, the first time range is smaller than the second time range, the second time range is smaller than the third time range; the first preset speed correction parameter is greater than the second preset speed correction parameter, and the second preset speed correction parameter is greater than the third preset speed correction parameter.

[0082] The first, second, and third preset speed correction parameters can be pre-calibrated by the user. The first, second, and third time ranges can be set by the user based on the operation of the front, main, and rear gearboxes of the AMT transmission.

[0083] Specifically, the first time range can be determined based on the operation time of a single gearbox in the AMT transmission, the second time range can be determined based on the operation time of two gearboxes in the AMT transmission, and the third time range can be determined based on the operation time of three gearboxes in the AMT transmission.

[0084] Understandably, with Figure 2 Unlike the corresponding embodiment, in this embodiment, the ECU can learn the synchronization time of various shifting processes in the transmission during the shifting speed adjustment phase, thereby directly determining the corresponding speed correction parameters based on the shift request information sent by the transmission controller. This allows for the application of different corrections at different shifting speed adjustment phases, adapting to the varying shifting speed adjustment response requirements of the transmission controller.

[0085] Figure 4 A flowchart of another engine speed control method provided in an embodiment of the present invention is shown below. Figure 4 The method includes the following steps:

[0086] S410. Obtain shift request information sent by the transmission controller; wherein, the shift request information includes the current gear and the target gear of the transmission.

[0087] S420: Based on the shift request information and the preset shift information of the transmission, determine the engine speed correction parameters required during the shift speed adjustment phase; wherein, the preset shift information includes the transmission action requirements corresponding to various shift request information.

[0088] S430 controls engine speed based on speed correction parameters during gear shifting and speed adjustment.

[0089] Following step S410, the method further includes:

[0090] S421. Obtain the current accelerator pedal opening information.

[0091] S431. Determine the opening degree of the gas engine's throttle valve based on the shift request information and the accelerator pedal opening information.

[0092] It should be noted that in this embodiment of the invention, the ECU can simultaneously monitor the downshifting process without power. If the ECU detects the downshifting process without power (the accelerator pedal opening is 0), it can adjust the opening of the gas engine's throttle valve to achieve minimum charge correction based on the gear, thus preventing the occurrence of engine speed dips during downshifting without power.

[0093] In summary, this embodiment of the invention determines the engine speed correction parameters required during the shift speed adjustment phase based on the gearbox's operational requirements corresponding to the shift request information, enabling accurate identification of the operating conditions during the shift speed adjustment phase. The ECU obtains the shift request information sent by the gearbox controller and, based on the shift request information and the gearbox's preset shift information, determines the gearbox's operational requirements, thereby applying different corrections at different shift speed adjustment phases. By self-learning the synchronization time of various gearbox shifting processes during the shift speed adjustment phase, the ECU can directly obtain the corresponding gearbox synchronization time for the shift speed adjustment phase based on the shift request information sent by the gearbox controller. Based on the synchronization time, the speed correction parameters corresponding to the shift speed adjustment phase of various shifting processes can be determined, thus applying different corrections at different shift speed adjustment phases. The ECU can simultaneously monitor the no-power downshifting process. If the ECU detects a no-power downshifting process (accelerator pedal opening is 0), it can adjust the opening of the gas engine's throttle valve to achieve minimum charge correction based on the gear, preventing engine speed dips during no-power downshifting. The solution adopted in this invention optimizes and improves the existing technology, accurately identifies the working conditions, takes into account multiple aspects, is feasible and effective, and can meet the various speed control requirements of TCU.

[0094] Figure 5 This is a schematic diagram of the structure of an engine speed control device provided in an embodiment of the present invention, with reference to... Figure 5 The device includes: a shift request information acquisition module 510, a speed correction parameter determination module 520, and a speed control module 530.

[0095] In this embodiment of the invention, the shift request information acquisition module 510 is used to acquire shift request information sent by the transmission controller; wherein, the shift request information includes the current gear and the target gear of the transmission; the speed correction parameter determination module 520 is used to determine the speed correction parameters required by the engine during the shift speed adjustment stage based on the shift request information acquired by the shift request information acquisition module 510 and the preset shift information of the transmission; wherein, the preset shift information includes the transmission's action requirements corresponding to various shift request information; the speed control module 530 is used to control the engine speed based on the speed correction parameters determined by the speed correction parameter determination module during the shift speed adjustment stage.

[0096] Figure 6 This is a schematic diagram of another engine speed control device provided in an embodiment of the present invention. Optionally, refer to... Figure 6 ,exist Figure 5 Based on the embodiments, the device further includes a synchronization time self-learning module 610.

[0097] In this embodiment of the invention, the synchronization time self-learning module 610 is used to self-learn the synchronization time of various shifting processes of the transmission during the shifting speed adjustment phase; the speed correction parameter determination module 520 is also used to determine the speed correction parameters corresponding to the shifting speed adjustment phase of various shifting processes based on the synchronization time self-learned by the synchronization time self-learning module 610; the speed control module 530 is also used to control the engine speed based on the speed correction parameters during the shifting speed adjustment phase after the shifting request information acquisition module 510 acquires the shifting request information sent by the transmission controller.

[0098] The engine speed control device provided in this embodiment of the invention can execute the engine speed control device method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects for executing the method. For content not described in detail in the embodiments of the invention, please refer to the engine speed control method provided in the above embodiments.

[0099] Figure 7 This is a schematic diagram of an engine speed control device provided for an embodiment of the present invention. The engine speed control device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The engine speed control device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (such as helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0100] like Figure 7 As shown, the engine speed control device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer programs stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 can also store various programs and data required for the operation of the engine speed control device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0101] Multiple components in the engine speed control device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, optical disk, etc.; and a communication unit 19, such as a network card, modem, wireless transceiver, etc. The communication unit 19 allows the engine speed control device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0102] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as engine speed control methods.

[0103] In some embodiments, the engine speed control method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded into and / or installed onto the engine speed control device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the engine speed control method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the engine speed control method by any other suitable means (e.g., by means of firmware).

[0104] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0105] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0106] This invention also provides a vehicle that includes the engine speed control device provided in the above embodiments.

[0107] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0108] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for controlling the speed of an engine, characterized in that, Applicable to vehicles including mechanical automatic transmissions, including: Obtain shift request information sent by the transmission controller; wherein, the shift request information includes the current gear and the target gear of the transmission; Based on the shift request information and the preset shift information of the transmission, the required engine speed correction parameters for the shift speed adjustment stage are determined; wherein, the preset shift information includes the action requirements of the transmission corresponding to various shift request information, and the action requirements of the transmission corresponding to various shift request information include single-gearbox action, two-gearbox action and three-gearbox action. During the gear shifting and speed adjustment phase, the engine speed is controlled based on the speed correction parameter.

2. The engine speed control method according to claim 1, characterized in that, The step of determining the engine speed correction parameters required during the shift adjustment phase based on the shift request information and the preset shift information of the transmission includes: Based on the shift request information and the preset shift information of the transmission, the action requirements of the transmission are determined; Based on the operational requirements of the transmission, determine the required engine speed correction parameters for the shifting and speed adjustment phase.

3. The engine speed control method according to claim 2, characterized in that, The step of determining the engine speed correction parameters required during the shifting and speed adjustment phase based on the operation requirements of the transmission includes: When the front gearbox, main gearbox, or rear gearbox of the transmission operates independently, the speed correction parameter is determined to be the first preset speed correction parameter; When any two of the front, main, and rear gearboxes of the transmission are activated, the speed correction parameter is determined to be the second preset speed correction parameter. When the front gearbox, main gearbox, and rear gearbox of the transmission are all in motion, the speed correction parameter is determined to be the third preset speed correction parameter. The first preset speed correction parameter is greater than the second preset speed correction parameter, and the second preset speed correction parameter is greater than the third preset speed correction parameter.

4. The engine speed control method according to claim 1, characterized in that, After obtaining the shift request information sent by the transmission controller, the process also includes: Get the current accelerator pedal opening information; The opening degree of the gas engine's throttle valve is determined based on the shift request information and the accelerator pedal opening information.

5. An engine speed control device, characterized in that, include: The shift request information acquisition module is used to acquire shift request information sent by the transmission controller; wherein, the shift request information includes the current gear and the target gear of the transmission; The speed correction parameter determination module is used to determine the speed correction parameters required by the engine during the shift speed adjustment stage based on the shift request information obtained by the shift request information acquisition module and the preset shift information of the transmission; wherein, the preset shift information includes the action requirements of the transmission corresponding to various shift request information, and the action requirements of the transmission corresponding to various shift request information include single-gearbox action, two-gearbox action and three-gearbox action. A speed control module is used to control the engine speed based on the speed correction parameters determined by the speed correction parameter determination module during the gear shifting and speed adjustment phase.

6. An engine speed control device, characterized in that, The engine speed control device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the engine speed control method according to any one of claims 1-4.

7. A vehicle, characterized in that, Includes the engine speed control device as described in claim 6.

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