Vehicle gear shifting control method and system, vehicle and storage medium

Abstract

The invention discloses a vehicle gear shifting control method and system, a vehicle and a storage medium, and the method comprises the steps that in response to a gear shifting instruction, the vehicle gear shifting process is monitored, and a monitoring result is obtained; controlling the engine to increase the rotating speed to a preset rotating speed value in response to the monitoring result indicating that top teeth exist; switching the clutch to a semi-linkage state in response to the condition that the rotating speed of the engine is the preset rotating speed value; in the semi-linkage state, the output torque of an engine is controlled to be zero, and a clutch is connected; in the engaging process of the clutch, according to the difference value between the rotating speed of an engine and the rotating speed of a first shaft, the rotating speed phase between a target-gear gear of the gearbox and an engaging gear sleeve is dynamically adjusted, and the gear advancing opportunity is provided for a gear shifting executing mechanism. According to the gear shifting method and device, the technical problem that gear shifting fails or gear shifting time is too long due to the tooth abutting phenomenon in gear shifting in the prior art is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle control, and in particular, relates to a vehicle shift control method, system, vehicle and storage medium. Background Art

[0002] Commercial AMT vehicles achieve the purpose of gear shifting by using the shift actuator to move the sliding gear sleeve to engage with the target gear. Due to the nature of commercial vehicle use, the gearbox needs to transmit greater torque, which requires the gear teeth to be thicker. The thicker teeth will make it more likely for commercial AMT vehicles to have gear top teeth during the gear shifting process, which will cause the gearbox to be unable to engage the target gear for a long time, resulting in gear shift failure and long gear shifting time, affecting the vehicle's driving performance and riding comfort. Summary of the invention

[0003] The embodiments of the present invention provide a vehicle shift control method, system, vehicle and storage medium to at least solve the technical problem in the related art that the gear shifting has a top gear phenomenon, resulting in a shift failure or a long shifting time.

[0004] According to a first aspect of an embodiment of the present invention, a vehicle shift control method is provided, comprising: in response to a shift instruction, monitoring a vehicle shift process to obtain a monitoring result; in response to the monitoring result indicating the presence of a top tooth, controlling the engine to increase the speed to a preset speed value; in response to the engine speed being the preset speed value, switching the clutch to a semi-clutch state; in the semi-clutch state, controlling the engine output torque to zero and engaging the clutch; during the clutch engagement process, dynamically adjusting the speed phase between the gearbox target gear and the engaging gear sleeve according to the difference between the engine speed and the speed of a shaft, to provide a shift actuator with a timing to advance the gear.

[0005] Optionally, in response to a shift instruction, the vehicle shift process is monitored to obtain a monitoring result, including: obtaining the position of the shift fork; determining the duration of the unchanged position of the shift fork based on the position of the shift fork; and in response to the duration being greater than a preset threshold, determining that the monitoring result is the occurrence of a top tooth phenomenon.

[0006] Optionally, determining the duration of the unchanged position of the shift fork according to the position of the shift fork includes: obtaining a shift force according to the position of the shift fork; and determining the duration of the unchanged position of the shift fork in response to the shift force satisfying a preset standard.

[0007] Optionally, in response to the monitoring result indicating the presence of a top tooth, controlling the engine to increase the speed to a preset speed value, including: in response to the monitoring result indicating the presence of a top tooth, judging the current state of the vehicle according to a preset top tooth control strategy enabling condition to obtain a judgment result; in response to the judgment result indicating that the current state of the vehicle satisfies the preset top tooth control strategy enabling condition, controlling the engine to increase the speed to a preset speed value.

[0008] Optionally, the preset top gear control strategy enabling conditions include: no fault in the clutch sensor, no fault in the engine control, and no fault in the one-shaft speed signal.

[0009] Optionally, the preset speed value is determined according to a shaft speed.

[0010] Optionally, during the clutch engagement process, the speed phase between the target gear gear of the transmission and the engaging gear sleeve is dynamically adjusted according to the difference between the engine speed and the speed of a shaft to provide the shift actuator with the opportunity to advance the gear, including: during the clutch engagement process, the speed of the target gear gear is adjusted according to the difference between the engine speed and the speed of a shaft until the target gear gear and the engaging gear sleeve are engaged with each other.

[0011] Optionally, the vehicle shift control method further includes: acquiring the meshing state of the target gear gear and the engagement gear sleeve; and determining that the shift is successful in response to the meshing state reaching a preset standard.

[0012] According to a second aspect of an embodiment of the present invention, there is further provided a vehicle shift control system, comprising:

[0013] A monitoring module is used to monitor the vehicle shifting process in response to a shifting instruction and obtain a monitoring result; a first control module is used to control the engine to increase the speed to a preset speed value in response to the monitoring result indicating the presence of a top tooth; a switching module is used to switch the clutch to a semi-clutch state in response to the engine speed being a preset speed value; a second control module is used to control the engine output torque to zero and engage the clutch in the semi-clutch state; an adjustment module is used to dynamically adjust the speed phase between the gearbox target gear and the engaging gear sleeve according to the difference between the engine speed and the one-shaft speed during the clutch engagement process, so as to provide the shift actuator with a timing to advance the gear.

[0014] Optionally, the monitoring module is further used to: obtain the position of the shift fork; determine the duration of the unchanged position of the shift fork according to the position of the shift fork; and determine that the monitoring result is the occurrence of the top tooth phenomenon in response to the duration being greater than a preset threshold.

[0015] Optionally, the monitoring module is further used to: obtain the shift force according to the position of the shift fork; and determine the duration of the unchanged position of the shift fork in response to the shift force satisfying a preset standard.

[0016] Optionally, the first control module is also used to: in response to the monitoring result indicating the presence of top gear, judge the current state of the vehicle according to the preset top gear control strategy enabling conditions to obtain a judgment result; in response to the judgment result indicating that the current state of the vehicle satisfies the preset top gear control strategy enabling conditions, control the engine to increase the speed to a preset speed value.

[0017] Optionally, the preset top gear control strategy enabling conditions in the first control module include: no fault in the clutch sensor, no fault in the engine control, and no fault in the one-axis speed signal.

[0018] Optionally, the preset speed value in the first control module is determined according to a shaft speed.

[0019] Optionally, the adjustment module is also used to: during the clutch engagement process, adjust the speed of the target gear according to the difference between the engine speed and the speed of a shaft, until the target gear and the engagement gear sleeve are meshed with each other.

[0020] Optionally, the adjustment module is further used to: obtain the meshing state of the target gear gear and the engagement gear sleeve; and determine that the gear shift is successful in response to the meshing state reaching a preset standard.

[0021] According to a third aspect of an embodiment of the present invention, a vehicle is also provided, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the vehicle shift control method described in any embodiment of the first aspect above.

[0022] According to a fourth aspect of an embodiment of the present invention, a non-volatile storage medium is also provided, in which a computer program is stored, wherein the computer program is configured to execute the vehicle shift control method described in any embodiment of the first aspect when running on a computer or a processor.

[0023] According to a fifth aspect of an embodiment of the present invention, a computer program product is also provided, including a computer program, which, when executed by a processor, implements the vehicle shift control method described in any embodiment of the first aspect above.

[0024] In an embodiment of the present invention, in response to a shift instruction, the vehicle shift process is monitored to obtain a monitoring result; in response to the monitoring result indicating the presence of top teeth, the engine is controlled to increase the speed to a preset speed value; in response to the engine speed being the preset speed value, the clutch is switched to a semi-clutch state; in the semi-clutch state, the engine output torque is controlled to be zero and the clutch is engaged; during the clutch engagement process, the speed phase between the target gear position gear of the transmission and the engaging gear sleeve is dynamically adjusted according to the difference between the engine speed and the speed of one shaft, providing the shift actuator with a gear entry opportunity. Through the above scheme, the present invention can dynamically adjust the speed phase between the target gear position gear of the transmission and the engaging gear sleeve, provide the shift actuator with a gear entry opportunity, and then complete the shift, thereby solving the technical problem of the top teeth phenomenon in the related art causing the shift failure or excessive shift time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 is a flow chart of a vehicle shift control method according to one embodiment of the present invention;

[0027] Figure 2 is a flowchart of a vehicle shift control method according to one embodiment of the present invention;

[0028] Figure 3 is a structural block diagram of a vehicle shift control system according to one embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] According to an embodiment of the present invention, an embodiment of a vehicle shift control method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system containing at least one set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0032] The method embodiment can also be executed in an electronic device including a memory and a processor, a similar control device or a cloud. Taking an electronic device as an example, the electronic device may include one or more processors and a memory for storing data. Optionally, the electronic device may also include a communication device and a display device for communication functions. It can be understood by those of ordinary skill in the art that the above structural description is only illustrative and does not limit the structure of the above electronic device. For example, the electronic device may also include more or fewer components than the above structural description, or have a configuration different from the above structural description.

[0033] The processor may include one or more processing units. For example, the processor may include a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP) chip, a microcontroller unit (MCU), a field-programmable gate array (FPGA), a neural network processor (NPU), a tensor processing unit (TPU), an artificial intelligence (AI) type processor, and the like. Among them, different processing units may be independent components or integrated into one or more processors. In some instances, the electronic device may also include one or more processors.

[0034] The memory can be used to store computer programs, such as storing a computer program corresponding to the vehicle shift control method in the embodiment of the present invention, and the processor implements the above-mentioned vehicle shift control method by running the computer program stored in the memory. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include a memory remotely arranged relative to the processor, and these remote memories can be connected to the electronic device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0035] The communication device is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the communication device includes a network adapter (network interface controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the communication device can be a radio frequency (radio frequency, RF) module, which is used to communicate with the Internet wirelessly. In some embodiments of the present solution, the communication device is used to connect to mobile devices such as mobile phones and tablets, and instructions can be sent to electronic devices through the mobile device.

[0036] The display device may be a touch screen type liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display may enable a user to interact with a user interface of the electronic device. In some embodiments, the electronic device has a graphical user interface (GUI), and a user may interact with the GUI by touching a finger release and / or gestures on a touch-sensitive surface, and executable instructions for executing the above-mentioned human-computer interaction functions are configured / stored in a computer program product or a readable storage medium executable by one or more processors.

[0037] Figure 1 is a flow chart of a vehicle shift control method according to one embodiment of the present invention. Figure 1 As shown, the method comprises the following steps:

[0038] Step S101, in response to a gear shift instruction, monitoring the vehicle gear shift process to obtain a monitoring result.

[0039] Step S102, in response to the monitoring result indicating the presence of a top gear, controlling the engine to increase the speed to a preset speed value, wherein the preset speed value may be 80 revolutions per minute.

[0040] Step S103, in response to the engine speed being a preset speed value, switching the clutch to a semi-clutch state.

[0041] Step S104, in the semi-clutch state, control the output torque of the engine to zero and engage the clutch.

[0042] Step S105, during the clutch engagement process, dynamically adjust the speed phase between the target gear of the transmission and the engagement sleeve according to the difference between the engine speed and the one shaft speed, so as to provide the shift actuator with a gear entry opportunity.

[0043] In an embodiment of the present invention, in response to a shift instruction, the vehicle shift process is monitored to obtain a monitoring result; in response to the monitoring result indicating the presence of top teeth, the engine is controlled to increase the speed to a preset speed value; in response to the engine speed being the preset speed value, the clutch is switched to a semi-clutch state; in the semi-clutch state, the engine output torque is controlled to be zero and the clutch is engaged; during the clutch engagement process, the speed phase between the target gear position gear of the transmission and the engaging gear sleeve is dynamically adjusted according to the difference between the engine speed and the speed of one shaft, providing the shift actuator with a gear entry opportunity. Through the above scheme, the present invention can dynamically adjust the speed phase between the target gear position gear of the transmission and the engaging gear sleeve, provide the shift actuator with a gear entry opportunity, and then complete the shift, thereby solving the technical problem of the top teeth phenomenon in the related art causing the shift failure or excessive shift time.

[0044] Optionally, in response to a shift instruction, the vehicle shift process is monitored to obtain a monitoring result, including: obtaining the position of the shift fork; determining the duration of the unchanged position of the shift fork based on the position of the shift fork; and in response to the duration being greater than a preset threshold, determining that the monitoring result is the occurrence of a top tooth phenomenon.

[0045] Optionally, determining the duration of the unchanged position of the shift fork according to the position of the shift fork includes: obtaining a shift force according to the position of the shift fork; and determining the duration of the unchanged position of the shift fork in response to the shift force satisfying a preset standard.

[0046] Optionally, in response to the monitoring result indicating the presence of a top tooth, controlling the engine to increase the speed to a preset speed value, including: in response to the monitoring result indicating the presence of a top tooth, judging the current state of the vehicle according to a preset top tooth control strategy enabling condition to obtain a judgment result; in response to the judgment result indicating that the current state of the vehicle satisfies the preset top tooth control strategy enabling condition, controlling the engine to increase the speed to a preset speed value.

[0047] Optionally, the preset top gear control strategy enabling conditions include: no fault in the clutch sensor, no fault in the engine control, and no fault in the one-shaft speed signal.

[0048] Optionally, the preset speed value is determined according to a shaft speed.

[0049] Optionally, during the clutch engagement process, the speed phase between the target gear gear of the transmission and the engaging gear sleeve is dynamically adjusted according to the difference between the engine speed and the speed of a shaft to provide the shift actuator with the opportunity to advance the gear, including: during the clutch engagement process, the speed of the target gear gear is adjusted according to the difference between the engine speed and the speed of a shaft until the target gear gear and the engaging gear sleeve are engaged with each other.

[0050] Optionally, the vehicle shift control method further includes: acquiring the meshing state of the target gear gear and the engagement gear sleeve; and determining that the shift is successful in response to the meshing state reaching a preset standard.

[0051] For example, refer to Figure 2 The vehicle shift control method provided by the present invention is performed as follows:

[0052] At S11, the transmission control unit controls the shift fork to switch the gear to the target gear.

[0053] At S12, it is determined whether the tooth-pushing phenomenon occurs during gear shifting. The identification method is that when the gear shifting force is normal, the gear engaging force is normally applied and the gear shift fork position is kept for a certain period of time without movement, and it is determined that the tooth-pushing phenomenon occurs. If the tooth-pushing phenomenon occurs, enter S13. If the tooth-pushing phenomenon does not occur, enter S19.

[0054] At S13, after the gear shift top gear occurs, it is determined whether the current vehicle state meets the enabling conditions of the gear shift top gear control strategy. If so, the process proceeds to S14; if not, the process proceeds to S11.

[0055] S14 is to increase the engine speed to the shaft speed plus the set value.

[0056] At S15, the clutch is engaged to the half-clutch point.

[0057] After S16 is the half-engagement point, the clutch begins to engage slowly.

[0058] At S17, the ECU controls the engine to continuously output zero torque based on the TCU controlled torque.

[0059] At S18, under the joint action of S16 and S17, the speed phase between the target gear and the engaging gear sleeve is continuously adjusted by utilizing the engine speed and the speed difference of one shaft.

[0060] At S19, the transmission successfully enters the target gear, and the gear shifting process is completed.

[0061] The gear shift top gear control strategy in the present invention specifically includes the following four enabling conditions S21, S22, S23, and S24, all of which must be met to enable the gear shift top gear strategy.

[0062] A, the condition at S21 is that the gear shift top gear phenomenon occurs;

[0063] B, the condition at S22 is that the clutch sensor has no fault;

[0064] C, the condition at S23 is that the engine control has no fault;

[0065] D. The condition at S24 is that there is no fault in the shaft speed signal.

[0066] It can be understood that the transmission control unit (TCU) identifies the top tooth (the identification method is that when the shift force is normal, the gear engaging force is applied normally and the shift fork position is maintained for a certain period of time without movement, and it is determined that the top tooth occurs); first, the engine speed is increased to the first shaft speed plus the set value, and then the clutch is engaged to the half-clutch point; then the engine is controlled to zero torque and the clutch is slowly engaged. The engagement process uses the difference between the engine speed and the first shaft speed to adjust the speed phase between the target gear gear and the engaging gear sleeve to achieve the purpose of successful gear shifting, optimize the gear shift top tooth problem, avoid the problem of long gear shifting time caused by secondary gear shifting, and effectively improve the gear shift success rate.

[0067] The embodiment of the present invention adopts clutch engagement assistance and utilizes the difference between the engine speed and the speed of one shaft to achieve the purpose of adjusting the speed phase between the target gear gear and the engaging gear sleeve, thereby successfully shifting gears, optimizing the gear shifting top tooth problem, avoiding the problem of excessively long gear shifting time caused by secondary gear shifting, effectively improving the gear shifting success rate, and improving the drivability and comfort of the vehicle.

[0068] It should be noted that the clutch and gear selection and shifting drive mechanism involved in the present invention may be replaced with a motor pneumatic structure or a motor hydraulic structure according to the requirements of different manufacturers, which is also applicable to the present method.

[0069] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0070] In this embodiment, a vehicle shift control system is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" is a combination of software and / or hardware that can implement a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0071] Figure 3 is a structural block diagram of a vehicle shift control system 200 according to one embodiment of the present invention. Figure 3As shown, a vehicle shift control system 200 is used as an example, including: a monitoring module 201, which is used to monitor the vehicle shift process in response to a shift instruction and obtain a monitoring result; a first control module 202, which is used to control the engine to increase the speed to a preset speed value in response to the monitoring result indicating the presence of a top tooth; a switching module 203, which is used to switch the clutch to a semi-clutch state in response to the engine speed being a preset speed value; a second control module 204, which is used to control the engine output torque to zero and engage the clutch in the semi-clutch state; an adjustment module 205, which is used to dynamically adjust the speed phase between the gearbox target gear and the engagement gear sleeve according to the difference between the engine speed and the one-shaft speed during the clutch engagement process, so as to provide the shift actuator with a timing to enter the gear.

[0072] Optionally, the monitoring module 201 is further used to: obtain the position of the shift fork; determine the duration of the unchanged position of the shift fork according to the position of the shift fork; and determine that the monitoring result is the occurrence of the top tooth phenomenon in response to the duration being greater than a preset threshold.

[0073] Optionally, the monitoring module 201 is further configured to: obtain a shift force according to a position of a shift fork; and determine a duration of a period of time during which the position of the shift fork remains unchanged in response to the shift force satisfying a preset standard.

[0074] Optionally, the first control module 202 is also used to: in response to the monitoring result indicating the presence of top gear, judge the current state of the vehicle according to the preset top gear control strategy enabling conditions to obtain a judgment result; in response to the judgment result indicating that the current state of the vehicle satisfies the preset top gear control strategy enabling conditions, control the engine to increase the speed to a preset speed value.

[0075] Optionally, the preset top gear control strategy enabling conditions in the first control module 202 include: no fault in the clutch sensor, no fault in the engine control, and no fault in the one-axis speed signal.

[0076] Optionally, the preset speed value in the first control module 202 is determined according to a shaft speed.

[0077] Optionally, the adjustment module 205 is further used to: during the clutch engagement process, adjust the speed of the target gear according to the difference between the engine speed and the speed of a shaft, until the target gear is meshed with the engagement gear sleeve.

[0078] Optionally, the adjustment module 205 is further used to: obtain the meshing state between the target gear and the engagement gear sleeve; and determine that the gear shift is successful in response to the meshing state reaching a preset standard.

[0079] An embodiment of the present invention further provides a vehicle, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the vehicle shift control method described in any of the above embodiments.

[0080] Optionally, in this embodiment, the processor in the vehicle may be configured to run a computer program to perform the following steps:

[0081] Step S101, in response to a gear shift instruction, monitoring the vehicle gear shift process to obtain a monitoring result.

[0082] Step S102, in response to the monitoring result indicating the presence of a top gear, controlling the engine to increase the speed to a preset speed value.

[0083] Step S103, in response to the engine speed being a preset speed value, switching the clutch to a semi-clutch state.

[0084] Step S104, in the semi-clutch state, control the output torque of the engine to zero and engage the clutch.

[0085] Step S105, during the clutch engagement process, dynamically adjust the speed phase between the target gear of the transmission and the engagement sleeve according to the difference between the engine speed and the one shaft speed, so as to provide the shift actuator with a gear entry opportunity.

[0086] Optionally, in response to a shift instruction, the vehicle shift process is monitored to obtain a monitoring result, including: obtaining the position of the shift fork; determining the duration of the unchanged position of the shift fork based on the position of the shift fork; and in response to the duration being greater than a preset threshold, determining that the monitoring result is the occurrence of a top tooth phenomenon.

[0087] Optionally, determining the duration of the unchanged position of the shift fork according to the position of the shift fork includes: obtaining a shift force according to the position of the shift fork; and determining the duration of the unchanged position of the shift fork in response to the shift force satisfying a preset standard.

[0088] Optionally, in response to the monitoring result indicating the presence of a top tooth, controlling the engine to increase the speed to a preset speed value, including: in response to the monitoring result indicating the presence of a top tooth, judging the current state of the vehicle according to a preset top tooth control strategy enabling condition to obtain a judgment result; in response to the judgment result indicating that the current state of the vehicle satisfies the preset top tooth control strategy enabling condition, controlling the engine to increase the speed to a preset speed value.

[0089] Optionally, the preset top gear control strategy enabling conditions include: no fault in the clutch sensor, no fault in the engine control, and no fault in the one-shaft speed signal.

[0090] Optionally, the preset speed value is determined according to a shaft speed.

[0091] Optionally, during the clutch engagement process, the speed phase between the target gear gear of the transmission and the engaging gear sleeve is dynamically adjusted according to the difference between the engine speed and the speed of a shaft to provide the shift actuator with the opportunity to advance the gear, including: during the clutch engagement process, the speed of the target gear gear is adjusted according to the difference between the engine speed and the speed of a shaft until the target gear gear and the engaging gear sleeve are engaged with each other.

[0092] Optionally, the vehicle shift control method further includes: acquiring the meshing state of the target gear gear and the engagement gear sleeve; and determining that the shift is successful in response to the meshing state reaching a preset standard.

[0093] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0094] An embodiment of the present invention further provides a non-volatile storage medium, in which a computer program is stored, wherein the computer program is configured to execute the vehicle shift control method described in any of the above embodiments when running on a computer or a processor.

[0095] Optionally, in this embodiment, the above-mentioned computer program may be configured to store a computer program for performing the following steps:

[0096] Step S101, in response to a gear shift instruction, monitoring the vehicle gear shift process to obtain a monitoring result.

[0097] Step S102, in response to the monitoring result indicating the presence of a top gear, controlling the engine to increase the speed to a preset speed value.

[0098] Step S103, in response to the engine speed being a preset speed value, switching the clutch to a semi-clutch state.

[0099] Step S104, in the semi-clutch state, control the output torque of the engine to zero and engage the clutch.

[0100] Step S105, during the clutch engagement process, dynamically adjust the speed phase between the target gear of the transmission and the engagement sleeve according to the difference between the engine speed and the one shaft speed, so as to provide the shift actuator with a gear entry opportunity.

[0101] Optionally, in response to a shift instruction, the vehicle shift process is monitored to obtain a monitoring result, including: obtaining the position of the shift fork; determining the duration of the unchanged position of the shift fork based on the position of the shift fork; and in response to the duration being greater than a preset threshold, determining that the monitoring result is the occurrence of a top tooth phenomenon.

[0102] Optionally, determining the duration of the unchanged position of the shift fork according to the position of the shift fork includes: obtaining a shift force according to the position of the shift fork; and determining the duration of the unchanged position of the shift fork in response to the shift force satisfying a preset standard.

[0103] Optionally, in response to the monitoring result indicating the presence of a top tooth, controlling the engine to increase the speed to a preset speed value, including: in response to the monitoring result indicating the presence of a top tooth, judging the current state of the vehicle according to a preset top tooth control strategy enabling condition to obtain a judgment result; in response to the judgment result indicating that the current state of the vehicle satisfies the preset top tooth control strategy enabling condition, controlling the engine to increase the speed to a preset speed value.

[0104] Optionally, the preset top gear control strategy enabling conditions include: no fault in the clutch sensor, no fault in the engine control, and no fault in the one-shaft speed signal.

[0105] Optionally, the preset speed value is determined according to a shaft speed.

[0106] Optionally, during the clutch engagement process, the speed phase between the target gear gear of the transmission and the engaging gear sleeve is dynamically adjusted according to the difference between the engine speed and the speed of a shaft to provide the shift actuator with the opportunity to advance the gear, including: during the clutch engagement process, the speed of the target gear gear is adjusted according to the difference between the engine speed and the speed of a shaft until the target gear gear and the engaging gear sleeve are engaged with each other.

[0107] Optionally, the vehicle shift control method further includes: acquiring the meshing state of the target gear gear and the engagement gear sleeve; and determining that the shift is successful in response to the meshing state reaching a preset standard.

[0108] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0109] An embodiment of the present invention further provides a computer program product, including a computer program, which implements the vehicle shift control method described in any of the above embodiments when executed by a processor.

[0110] Optionally, in this embodiment, the above computer program implements the following steps when executed by a processor:

[0111] Step S101, in response to a gear shift instruction, monitoring the vehicle gear shift process to obtain a monitoring result.

[0112] Step S102, in response to the monitoring result indicating the presence of a top gear, controlling the engine to increase the speed to a preset speed value.

[0113] Step S103, in response to the engine speed being a preset speed value, switching the clutch to a semi-clutch state.

[0114] Step S104, in the semi-clutch state, control the output torque of the engine to zero and engage the clutch.

[0115] Step S105, during the clutch engagement process, dynamically adjust the speed phase between the target gear of the transmission and the engagement sleeve according to the difference between the engine speed and the one shaft speed, so as to provide the shift actuator with a gear entry opportunity.

[0116] Optionally, in response to a shift instruction, the vehicle shift process is monitored to obtain a monitoring result, including: obtaining the position of the shift fork; determining the duration of the unchanged position of the shift fork based on the position of the shift fork; and in response to the duration being greater than a preset threshold, determining that the monitoring result is the occurrence of a top tooth phenomenon.

[0117] Optionally, determining the duration of the unchanged position of the shift fork according to the position of the shift fork includes: obtaining a shift force according to the position of the shift fork; and determining the duration of the unchanged position of the shift fork in response to the shift force satisfying a preset standard.

[0118] Optionally, in response to the monitoring result indicating the presence of a top tooth, controlling the engine to increase the speed to a preset speed value, including: in response to the monitoring result indicating the presence of a top tooth, judging the current state of the vehicle according to a preset top tooth control strategy enabling condition to obtain a judgment result; in response to the judgment result indicating that the current state of the vehicle satisfies the preset top tooth control strategy enabling condition, controlling the engine to increase the speed to a preset speed value.

[0119] Optionally, the preset top gear control strategy enabling conditions include: no fault in the clutch sensor, no fault in the engine control, and no fault in the one-shaft speed signal.

[0120] Optionally, the preset speed value is determined according to a shaft speed.

[0121] Optionally, during the clutch engagement process, the speed phase between the target gear gear of the transmission and the engaging gear sleeve is dynamically adjusted according to the difference between the engine speed and the speed of a shaft to provide the shift actuator with the opportunity to advance the gear, including: during the clutch engagement process, the speed of the target gear gear is adjusted according to the difference between the engine speed and the speed of a shaft until the target gear gear and the engaging gear sleeve are engaged with each other.

[0122] Optionally, the vehicle shift control method further includes: acquiring the meshing state of the target gear gear and the engagement gear sleeve; and determining that the shift is successful in response to the meshing state reaching a preset standard.

[0123] Optionally, the above-mentioned computer program implements the following steps when executed by the processor: obtaining historical total weight data and historical mileage data, wherein the historical total weight data includes the historical vehicle total weight determined at each preset time interval, and the historical mileage data includes the mileage traveled by the vehicle at each preset time interval; determining the total weight of the vehicle based on the historical total weight data and the historical mileage data.

[0124] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0125] In some embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the modules can be a logical function division. There may be other division methods in actual implementation. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, modules or indirect coupling or communication connection of modules, which can be electrical or other forms.

[0126] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0127] In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of software functional modules.

[0128] If the integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0129] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vehicle shift control method, characterized in that: include: In response to the gear shift instruction, monitoring the gear shift process of the vehicle and obtaining a monitoring result; In response to the monitoring result indicating the presence of a top gear, controlling the engine to increase the speed to a preset speed value; In response to the engine speed being the preset speed value, switching the clutch to a semi-clutch state; In the semi-clutch state, controlling the output torque of the engine to be zero and engaging the clutch; During the clutch engagement process, the speed phase between the target gear of the transmission and the engagement sleeve is dynamically adjusted according to the difference between the engine speed and the speed of a shaft, so as to provide a gear-entry opportunity for the shift actuator.

2. The vehicle shift control method according to claim 1, characterized in that: The step of monitoring the vehicle shifting process in response to the shifting instruction and obtaining the monitoring result includes: Get the position of the shift fork; determining a duration of time during which the position of the shift fork remains unchanged according to the position of the shift fork; In response to the duration being greater than a preset threshold, it is determined that the monitoring result is the occurrence of a tooth top phenomenon.

3. The vehicle shift control method according to claim 2, characterized in that: Determining the duration of the unchanged position of the shift fork according to the position of the shift fork includes: obtaining a shift force according to the position of the shift fork; In response to the shift force satisfying a preset criterion, a duration of time during which the shift fork position remains unchanged is determined.

4. The vehicle shift control method according to claim 1, characterized in that: In response to the monitoring result indicating the presence of the top gear, controlling the engine to increase the speed to a preset speed value includes: In response to the monitoring result indicating the presence of a top gear, judging the current state of the vehicle according to a preset top gear control strategy enabling condition to obtain a judgment result; In response to the judgment result indicating that the current state of the vehicle satisfies the preset top gear control strategy enabling condition, the engine is controlled to increase the speed to a preset speed value.

5. The vehicle shift control method according to claim 4, characterized in that: The preset top gear control strategy enabling conditions include: The clutch sensor is fault-free, the engine control is fault-free and the one-shaft speed signal is fault-free.

6. The vehicle shift control method according to claim 1, characterized in that: The preset rotation speed value is determined according to the rotation speed of the one shaft.

7. The vehicle shift control method according to claim 1, characterized in that: In the clutch engagement process, according to the difference between the engine speed and the shaft speed, the speed phase between the target gear of the transmission and the engagement gear sleeve is dynamically adjusted to provide a shifting actuator with a shifting timing, including: During the clutch engagement process, the speed of the target gear is adjusted according to the difference between the engine speed and a shaft speed, until the target gear is meshed with the engagement gear sleeve.

8. The vehicle shift control method according to claim 1, characterized in that: Also includes: Acquiring the meshing state of the target gear and the engaging gear sleeve; In response to the engagement state reaching a preset standard, it is determined that the gear shift is successful.

9. A vehicle shift control system, characterized in that: include: A monitoring module, for monitoring the vehicle shifting process in response to a shifting instruction and obtaining a monitoring result; A first control module, configured to control the engine to increase the speed to a preset speed value in response to the monitoring result indicating the presence of a top gear; a switching module, configured to switch the clutch to a semi-clutch state in response to the engine speed being the preset speed value; A second control module, configured to control the output torque of the engine to be zero and engage the clutch in the semi-clutch state; The adjustment module is used to dynamically adjust the speed phase between the target gear of the transmission and the engagement gear sleeve according to the difference between the engine speed and the speed of a shaft during the clutch engagement process, so as to provide a gear-entry opportunity for the shift actuator.

10. A vehicle comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to execute the vehicle shift control method described in any one of claims 1 to 8.

11. A non-volatile storage medium, characterized in that: The non-volatile storage medium stores a computer program, wherein the computer program is configured to execute the vehicle shift control method described in any one of claims 1 to 8 when running on a computer or a processor.

12. A computer program product, characterized in that The invention comprises a computer program, which, when executed by a processor, implements the vehicle shift control method according to any one of claims 1 to 8.

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