Valve shifting methods, devices, equipment, media, and products based on valve action time

Abstract

This application provides a gear shifting method, apparatus, device, medium, and product based on valve actuation time. The method includes: detecting a first operating state of a position sensor of a gear selector valve and a second operating state of a position sensor of a gear shifting valve; when the first operating state indicates a fault in the position sensor of the gear selector valve, issuing a gear selector valve actuation command to a gear shifting actuator, and issuing a gear selector valve stop actuation command to the gear shifting actuator after a first actuation time following the issuance of the gear selector valve actuation command; when the second operating state indicates a fault in the position sensor of the gear shifting valve, issuing a gear shifting valve actuation command to the gear shifting actuator, and issuing a gear shifting valve stop actuation command to the gear shifting actuator after a second actuation time following the issuance of the gear shifting valve actuation command. This method solves the problem of how to complete gear shifting based on valve actuation time when both the position sensors of the gear selector valve and the gear shifting valve malfunction.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of vehicle technology, and in particular to a shifting method, device, equipment, medium and product based on valve action time. Background Technology

[0002] An automated mechanical transmission (AMT) is a mechanical automatic transmission based on a traditional dry clutch and mechanical transmission, with the addition of an electronic control unit (TCU) to transform the manual shifting mechanism into an automatic shifting mechanism, thus achieving automatic gear shifting. Existing AMTs determine the gear position based on the position sensors of the selector valve and the shift valve. If either the selector valve's position sensor or the shift valve's position sensor malfunctions, the shift actuator will not function properly.

[0003] Therefore, how to complete the shifting action based on the valve action time when the position sensor of the gear selection valve and the position sensor of the shift valve malfunction is a problem that this invention urgently needs to solve. Summary of the Invention

[0004] This invention provides a shifting method, apparatus, equipment, medium, and product based on valve action time, to solve the problem of how to complete the shifting action based on the valve action time when the position sensor of the selector valve and the position sensor of the shifting valve malfunction.

[0005] The first aspect of this invention provides a shifting method based on valve actuation time, wherein the valve includes a selection valve and a shifting valve, and the method includes:

[0006] The first operating state of the position sensor of the gear selector valve and the second operating state of the position sensor of the gear shift valve are detected.

[0007] When the position sensor of the gear selection valve is faulty in the first working state, a gear selection valve action command is sent to the gear selection actuator, and a gear selection valve stop action command is sent to the gear selection actuator after the first action time of sending the gear selection valve action command. The first action time refers to the time when the gear selection valve completes the gear selection action.

[0008] When the position sensor of the shift valve is faulty in the second working state, a shift valve action command is sent to the shift selector actuator, and a shift valve stop action command is sent to the shift selector actuator after the second action time after the shift valve action command is sent. The second action time refers to the time it takes for the shift valve to complete the shift action.

[0009] In one possible design, as described above, after issuing the gear selection valve actuation command to the gear selection actuator, the method further includes:

[0010] Based on the real-time air source pressure of the gear shifting actuator, the first action time and the second action time are obtained from the pre-stored curve. The curve is used to indicate the correspondence between the first action time and the second action time and the air source pressure. Both the first action time and the second action time are negatively correlated with the air source pressure.

[0011] In one possible design, as described above, before obtaining the first and second action times from a pre-stored curve based on the real-time air source pressure of the gear shifting actuator, the method further includes:

[0012] Obtain the minimum air source pressure threshold and the maximum air source pressure threshold, wherein the minimum air source pressure threshold refers to the minimum air source pressure at which the gear shifting actuator performs the gear shifting action, and the maximum air source pressure threshold refers to the maximum air source pressure at which the gear shifting actuator performs the gear shifting action;

[0013] Based on the preset pressure interval, multiple calibrated gas source pressures are set between the minimum gas source pressure threshold and the maximum gas source pressure threshold.

[0014] Obtain the first and second action times obtained through actual vehicle testing at each calibrated air source pressure;

[0015] A curve is obtained based on the first and second action times corresponding to each calibrated gas source pressure.

[0016] In one possible design, as described above, the method further includes:

[0017] When the position sensor of the gear selection valve is normal in the first working state, a gear selection valve action command is sent to the gear selection actuator, and the first position information of the gear selection valve collected by the position sensor of the gear selection valve is obtained.

[0018] When the distance between the gear selection valve and the first preset position is less than the first preset threshold, a gear selection valve stop operation command is sent to the gear selection actuator. The first preset position refers to the gear position of the gear selection valve that has been pre-calibrated.

[0019] In one possible design, as described above, the method further includes:

[0020] When the distance between the first position information indicating the gear selection valve and the first preset position is not less than the first preset threshold, and the time for issuing the gear selection valve action command is not less than the first action time, a gear selection valve stop action command is issued to the gear shifting actuator.

[0021] In one possible design, as described above, the method further includes:

[0022] When the position sensor of the shift valve is normal in the second working state, a shift valve action command is sent to the shift selector actuator, and the second position information of the shift valve collected by the position sensor of the shift valve is obtained.

[0023] When the distance between the shift valve and the second preset position indicated by the second position information is less than the second preset threshold, a shift valve stop operation command is sent to the shift selector actuator, wherein the second preset position refers to the pre-calibrated shift valve gear position.

[0024] In one possible design, as described above, the method further includes:

[0025] When the distance between the shift valve and the second preset position indicated by the second position information is not less than the second preset threshold, and the time for issuing the shift valve action command is not less than the second action time, a shift valve stop action command is issued to the shift selector actuator.

[0026] A second aspect of the present invention provides a shifting device based on valve actuation time, wherein the valve includes a selection valve and a shifting valve, and the device includes:

[0027] The detection module is used to detect the first working state of the position sensor of the gear selector valve and the second working state of the position sensor of the gear shift valve.

[0028] The gear selection module is used to send a gear selection valve action command to the gear selection actuator when the position sensor of the gear selection valve is faulty in the first working state, and to send a gear selection valve stop action command to the gear selection actuator after the first action time after sending the gear selection valve action command. The first action time refers to the time when the gear selection valve completes the gear selection action.

[0029] The shift module is used to send a shift valve action command to the shift selector actuator when the position sensor of the shift valve is faulty in the second working state, and to send a shift valve stop action command to the shift selector actuator after the second action time after sending the shift valve action command, wherein the second action time refers to the time for the shift valve to complete the shift action.

[0030] In one possible design, as described above, the device further includes:

[0031] The time query module is used to obtain the first action time and the second action time from a pre-stored curve based on the real-time air source pressure of the gear shifting actuator. The curve is used to indicate the correspondence between the first action time and the second action time and the air source pressure. Both the first action time and the second action time are negatively correlated with the air source pressure.

[0032] In one possible design, as described above, the device further includes:

[0033] The threshold acquisition module is used to acquire the minimum air source pressure threshold and the maximum air source pressure threshold. The minimum air source pressure threshold refers to the minimum air source pressure at which the gear shifting actuator performs the gear shifting action, and the maximum air source pressure threshold refers to the maximum air source pressure at which the gear shifting actuator performs the gear shifting action.

[0034] The pressure calibration module is used to set multiple calibration gas source pressures between the minimum gas source pressure threshold and the maximum gas source pressure threshold according to a preset pressure interval.

[0035] The time acquisition module is used to acquire the first action time and the second action time obtained through actual vehicle testing at each calibrated air source pressure.

[0036] The curve generation module is used to generate curves based on the first and second action times corresponding to each calibrated gas source pressure.

[0037] In one possible design, as in the device described above, the gear selection module is also used for:

[0038] When the position sensor of the gear selection valve is normal in the first working state, a gear selection valve action command is sent to the gear selection actuator, and the first position information of the gear selection valve collected by the position sensor of the gear selection valve is obtained.

[0039] When the distance between the gear selection valve and the first preset position is less than the first preset threshold, a gear selection valve stop operation command is sent to the gear selection actuator. The first preset position refers to the gear position of the gear selection valve that has been pre-calibrated.

[0040] In one possible design, as in the device described above, the gear selection module is also used for:

[0041] When the distance between the first position information indicating the gear selection valve and the first preset position is not less than the first preset threshold, and the time for issuing the gear selection valve action command is not less than the first action time, a gear selection valve stop action command is issued to the gear shifting actuator.

[0042] In one possible design, as described in the device above, the shift module is also used for:

[0043] When the position sensor of the shift valve is normal in the second working state, a shift valve action command is sent to the shift selector actuator, and the second position information of the shift valve collected by the position sensor of the shift valve is obtained.

[0044] When the distance between the shift valve and the second preset position indicated by the second position information is less than the second preset threshold, a shift valve stop operation command is sent to the shift selector actuator, wherein the second preset position refers to the pre-calibrated shift valve gear position.

[0045] In one possible design, as described in the device above, the shift module is also used for:

[0046] When the distance between the shift valve and the second preset position indicated by the second position information is not less than the second preset threshold, and the time for issuing the shift valve action command is not less than the second action time, a shift valve stop action command is issued to the shift selector actuator.

[0047] A third aspect of the present invention provides an electronic device, including: a memory and a processor;

[0048] The memory stores the instructions that the computer executes;

[0049] The processor executes computer execution instructions stored in memory to implement a shifting method based on valve action time, as described in the first aspect of the invention.

[0050] A fourth aspect of the present invention provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement a shifting method based on valve action time as described in the first aspect of the invention.

[0051] The fifth aspect of this invention provides a computer program product, including a computer program that, when executed by a processor, implements a shifting method based on valve action time as described in the first aspect of the invention.

[0052] This invention provides a shifting method, apparatus, device, medium, and product based on valve action time. The method includes: first, detecting a first operating state of a position sensor of a shifting valve and a second operating state of a position sensor of a shifting valve; then, when the first operating state indicates a fault in the position sensor of the shifting valve, issuing a shifting valve action command to a shifting actuator, and issuing a shifting valve stop action command to the shifting actuator after a first action time following the issuance of the shifting valve action command, wherein the first action time refers to the time it takes for the shifting valve to complete the shifting action; then, when the second operating state indicates a fault in the position sensor of the shifting valve, issuing a shifting valve action command to the shifting actuator, and issuing a shifting valve stop action command to the shifting actuator after a second action time following the issuance of the shifting valve action command, wherein the second action time refers to the time it takes for the shifting valve to complete the shifting action. The shifting method based on valve action time in this invention detects the first working state of the position sensor of the shifting valve and the second working state of the position sensor of the shifting valve. Therefore, when both the position sensors of the shifting valve and the shifting valve malfunction, the method defaults to shifting after the first action time of the shifting valve's shifting action and the second action time of the shifting valve's shifting action, based on pre-calibrated first action time of the shifting valve's shifting action and second action time of the shifting valve's shifting action. This method solves the problem of how to complete the shifting action based on valve action time when both the position sensors of the shifting valve and the shifting valve malfunction. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0055] Figure 1 A schematic diagram of the system architecture for the shifting method based on valve action time provided in the embodiments of this application;

[0056] Figure 2 This is a schematic diagram of the main gear shifting device provided in an embodiment of this application;

[0057] Figure 3 A flowchart illustrating the gear shifting method based on valve action time provided in this application embodiment. Figure 1 ;

[0058] Figure 4 A flowchart illustrating the gear shifting method based on valve action time provided in this application embodiment. Figure 2 ;

[0059] Figure 5 A schematic diagram of the process for generating curve graphs provided in an embodiment of this application;

[0060] Figure 6 A flowchart illustrating the gear shifting method based on valve action time provided in this application embodiment. Figure 3 ;

[0061] Figure 7 A schematic diagram of the gear shifting device based on valve action time provided by the present invention;

[0062] Figure 8 This is a schematic diagram of the structure of the electronic device provided by the present invention.

[0063] Figure label:

[0064] 100 - Electromechanical automatic transmission; 101 - Electronic control unit; 102 - Gear selection actuator; 103 - Gear selection valve; 104 - Gear shift valve;

[0065] 200-Main gearbox selector shifting device;

[0066] 300 - Valve action time-based shifting device; 301 - Detection module; 302 - Gear selection module; 303 - Gear shifting module;

[0067] 400 - Electronic equipment; 410 - Processor; 420 - Memory; 430 - Communication components; 440 - Bus. Detailed Implementation

[0068] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0069] In the embodiments of this application, the terms "first" and "second" are used to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that "first" and "second" do not necessarily imply difference. It should be noted that in the embodiments of this application, the words "exemplary" or "for example" are used to indicate that something is being used as an example, illustration, or description. Any embodiment or design scheme described as "exemplary" or "for example" in this application should not be construed as being better or more advantageous than other embodiments or design schemes. Specifically, the use of "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner. In the embodiments of this application, "at least one" refers to one or more, and "more than one" refers to two or more.

[0070] It should be noted that "at the time of..." in the embodiments of this application can be either at the instant when a certain situation occurs, or for a period of time after the occurrence of a certain situation. The embodiments of this application do not make specific limitations on this.

[0071] The technical solution of the present invention will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0072] To clearly understand the technical solution of this application, the existing technical solutions will first be described in detail. Electromechanical automatic transmissions achieve automatic gear shifting through electronic control of mechanical gear changes. Based on traditional mechanical transmissions and dry clutches, they involve electrifying the clutch operating mechanism and the transmission's gear selection mechanism. Utilizing electronic control technology and various sensors, the electronic control unit analyzes and processes information such as engine operating status, vehicle speed, throttle, and braking. By sending commands to the engine control unit (ECU) and operating mechanism, commands are coordinated between the clutch, gear selection actuator, and engine to achieve fully automatic gear shifting.

[0073] For vehicles equipped with electromechanical automatic transmissions, position sensors typically collect real-time position information of the selector valve and shift valve during vehicle operation. This information is then compared with pre-calibrated gear positions to determine whether the selector valve or shift valve is in the correct gear position. The accuracy of gear shifting depends on the position sensor measurements. If the position sensors for the selector valve and shift valve malfunction, real-time position information cannot be collected to determine gear shifting accuracy, causing the shift actuator to malfunction.

[0074] Therefore, the problem to be solved in this application is how to continue to determine whether the gear selection valve and the gear shift valve have shifted to the correct gear when the position sensor of the gear selection valve and the position sensor of the gear shift valve fail.

[0075] When both the position sensor of the gear selection valve and the position sensor of the shift valve malfunction, the gear selection valve can be delayed by a corresponding time after performing the gear selection action, thus defaulting to the selected gear. Similarly, the shift valve can be delayed by a corresponding time after performing the shift action, thus defaulting to the shift.

[0076] Furthermore, the inventors discovered during their research that the operating time of both the gear selection valve and the shift valve is negatively correlated with the air source pressure. Therefore, based on this negative correlation between the operating time of the gear selection valve and the air source pressure, and the operating time of the shift valve and the air source pressure, this application proposes a method to determine the valve operating time in real time based on the air source pressure, thereby determining when the shift is complete. Specifically, when the air source pressure is high, the gear selection / shifting time is reduced accordingly; when the air source pressure is low, the gear selection / shifting time is extended accordingly, thus ensuring sufficient operating time for the gear to be engaged.

[0077] Based on the above-mentioned inventive discovery, the inventor has proposed the technical solution of this application.

[0078] The system architecture of the shifting method based on valve action time provided in the embodiments of the present invention will be described below. Figure 1 This is a schematic diagram of the system architecture for the gear shifting method based on valve action time provided in an embodiment of this application. It should be noted that... Figure 1 The examples shown are merely examples of system architectures that can be applied to the embodiments of this application, in order to help those skilled in the art understand the technical content of this application, but do not mean that the embodiments of this application cannot be used in other devices, systems, environments or scenarios.

[0079] like Figure 1 As shown, the system architecture of this method is an electromechanical automatic transmission 100, including: an electronic control unit 101, a gear selection actuator 102, a gear selection valve 103, and a shift valve 104. The electromechanical automatic transmission 100, through the electronic control unit 101, sends commands to the gear selection actuator 102, thereby controlling the gear selection valve 103 and the shift valve 104 to perform corresponding actions, ultimately achieving the function of automatic gear shifting.

[0080] The electronic control unit 101 is the core control unit of the electromechanical automatic transmission 100. It is used to perform complex calculations and logical judgments based on various parameters of vehicle operation, formulate appropriate shifting strategies, and when a fault is detected in the position sensor of the gear selector valve and the position sensor of the shift valve, it formulates a shifting method based on the valve action time according to the pre-stored time for the gear selector valve to complete the gear selection action and the pre-stored time for the shift valve to complete the shift action, and sends the corresponding instructions to the gear selector / shifting actuator 102.

[0081] The gear shifting actuator 102 is used to execute the instructions issued by the electronic control unit 101, control the gear selection valve 103 to select different gear sets, select the gear range, and control the shift valve 104 to select the corresponding gear to perform specific gear switching.

[0082] Figure 2 This is a schematic diagram of the main gearbox selection shifting device provided in an embodiment of this application. Figure 2 As shown, the main gearbox shifting device 200 includes a selection valve 103 and a shift valve 104. The selection valve 103 determines the gear range that the electromechanical automatic transmission should be in, and the shift valve 104 performs precise shifting actions to achieve the transition from one specific gear to another.

[0083] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0084] Figure 3 A flowchart illustrating the gear shifting method based on valve action time provided in this application embodiment. Figure 1 ,like Figure 3 As shown, in this embodiment, the execution entity of the present invention is an electronic control unit, which is located in an electromechanical automatic transmission. The shifting method based on valve action time provided in this embodiment includes the following steps:

[0085] Step S101: Detect the first working state of the position sensor of the gear selector valve and the second working state of the position sensor of the gear shift valve.

[0086] In this embodiment, the electronic control unit detects the first working state of the position sensor of the gear selector valve and the second working state of the position sensor of the gear shift valve, so as to determine whether the position sensor of the gear selector valve is working normally based on the first working state and whether the position sensor of the gear shift valve is working normally based on the second working state.

[0087] In the first operating state, the selector valve is indicated to be working normally, and in the second operating state, the shift valve is indicated to be working normally, meaning the fault diagnosis system does not report any unreliable faults regarding the selector valve position or the shift valve position. The electronic control unit then compares the position information of the selector valve, collected in real-time by its position sensor, with the pre-calibrated gear position to determine if the selector valve is in the correct gear position; similarly, it compares the position information of the shift valve, collected in real-time by its position sensor, with the pre-calibrated gear position to determine if the shift valve is in the correct gear position. This method of using real-time position information from position sensors to determine whether the selector valve has selected the correct gear and the shift valve has shifted the correct gear is a common shifting method used in electromechanical automatic transmissions.

[0088] Step S102: When the position sensor of the gear selection valve is faulty in the first working state, a gear selection valve action command is sent to the gear selection actuator, and after the first action time of sending the gear selection valve action command, a gear selection valve stop action command is sent to the gear selection actuator.

[0089] In this embodiment, the first action time refers to the time it takes for the gear selection valve to complete the gear selection action. When the position sensor of the gear selection valve malfunctions in the first working state indication, the electronic control unit determines that the gear selection valve has completed gear selection after the first action time following the issuance of the gear selection valve action command to the gear selection actuator, based on the pre-calibrated first action time. The electronic control unit then issues a gear selection valve stop action command to the gear selection actuator, thus completing the gear selection action.

[0090] Step S103: When the position sensor of the shift valve is faulty in the second working state indication, a shift valve action command is sent to the shift selector actuator, and after the second action time after sending the shift valve action command, a shift valve stop action command is sent to the shift selector actuator.

[0091] In this embodiment, the second action time refers to the time it takes for the shift valve to complete the shifting action. When the position sensor of the shift valve in the second operating state indicates a fault, the electronic control unit determines that the shift valve has shifted to the correct position after the second action time, which is the time after which the shift valve action command is sent to the shift selector actuator, according to the pre-calibrated second action time. Then, it sends a shift valve stop action command to the shift selector actuator to complete the shifting action.

[0092] This invention provides a gear shifting method based on valve action time. The method includes: first, detecting a first operating state of a position sensor of a gear selector valve and a second operating state of a position sensor of a gear shifting valve; then, when the first operating state indicates a fault in the position sensor of the gear selector valve, issuing a gear selector valve action command to a gear shifting actuator, and issuing a gear selector valve stop action command to the gear shifting actuator after a first action time following the issuance of the gear selector valve action command, wherein the first action time refers to the time it takes for the gear selector valve to complete the gear selection action; then, when the second operating state indicates a fault in the position sensor of the gear shifting valve, issuing a gear shifting valve action command to the gear shifting actuator, and issuing a gear shifting valve stop action command to the gear shifting actuator after a second action time following the issuance of the gear shifting valve action command, wherein the second action time refers to the time it takes for the gear shifting valve to complete the gear shifting action.

[0093] The shifting method based on valve action time in this invention detects the first working state of the position sensor of the shifting valve and the second working state of the position sensor of the shifting valve. Therefore, when both the position sensors of the shifting valve and the shifting valve malfunction, the method defaults to shifting after the first action time of the shifting valve's shifting action and the second action time of the shifting valve's shifting action, based on pre-calibrated first action time of the shifting valve's shifting action and second action time of the shifting valve's shifting action. This method solves the problem of how to complete the shifting action based on valve action time when both the position sensors of the shifting valve and the shifting valve malfunction.

[0094] Figure 4 A flowchart illustrating the gear shifting method based on valve action time provided in this application embodiment. Figure 2 ,like Figure 4 As shown, in this embodiment... Figure 3 Based on the embodiments, the method for determining the first action time and the second action time will be explained in detail. For example... Figure 4 As shown, the method includes:

[0095] Step S201: Detect the first working state of the position sensor of the gear selector valve and the second working state of the position sensor of the gear shift valve.

[0096] Step S202: When the position sensor of the gear selection valve is faulty in the first working state indication, a gear selection valve action command is sent to the gear selection actuator.

[0097] In this embodiment, the implementation of S201-S202 is similar to that of S101-S102 in the previous embodiment of this application, and will not be described again here.

[0098] Step S203: Based on the real-time air source pressure of the gear shifting actuator, the first action time and the second action time are obtained from the pre-stored curve.

[0099] In this embodiment, the graph is used to indicate the correspondence between the first and second action times and the air source pressure. Both the first and second action times are negatively correlated with the air source pressure. That is to say, the first action time for the gear selection valve to complete the gear selection action and the second action time for the gear shifting valve to complete the gear shifting action are not constants under different air source pressures. As the air source pressure increases, both the first and second action times become shorter. If the real-time air source pressure is ignored and both the first and second action times are treated as constants, when the air source pressure is low, the action time of both the gear selection valve and the gear shifting valve will be insufficient to allow the gear selection valve to complete the gear selection and the gear shifting valve to complete the gear shifting. When the air source pressure is high, the action time of both the gear selection valve and the gear shifting valve will exceed the necessary time for actual gear selection and shifting. In cases where the gear selection valve has already completed the gear selection, the gear shifting actuator will still be executing the gear selection command issued by the electronic control unit; or in cases where the gear shifting valve has already completed the gear shift, the gear shifting actuator will still be executing the gear shifting command issued by the electronic control unit without stopping in time.

[0100] Step S204: After the first action time of issuing the gear selection valve action command, issue a gear selection valve stop action command to the gear shifting actuator.

[0101] Step S205: When the position sensor of the shift valve indicates a fault in the second working state, a shift valve action command is sent to the shift selector actuator, and after the second action time after sending the shift valve action command, a shift valve stop action command is sent to the shift selector actuator.

[0102] In this embodiment, the implementation of S204-S205 is similar to that of S102-S103 in the previous embodiment of this application, and will not be described again here.

[0103] The method in this embodiment achieves the following technical effects: The electronic control unit, based on the real-time air source pressure of the gear selection actuator, obtains a first action time and a second action time corresponding to the real-time air source pressure from a pre-stored curve. Therefore, based on the first action time, it determines that the gear selection valve has reached the correct gear position, and based on the second action time, it determines that the gear shifting valve has reached the correct gear position. This avoids the problems of treating the time for the gear selection valve to complete its gear selection action as a constant, resulting in insufficient gear selection time and the gear selection valve failing to reach the correct gear position; similarly, treating the time for the gear shifting valve to complete its gear shifting action as a constant, resulting in insufficient shifting time and the gear shifting valve failing to reach the correct gear position; or the gear selection / shifting time being too long, causing the gear selection / shifting actuator to fail to stop the gear selection and shifting operations in time.

[0104] Figure 5 This is a schematic diagram of the process for generating curve graphs provided in the embodiments of this application, such as... Figure 5 As shown, in this embodiment... Figure 4 Based on the examples, a detailed explanation of how to generate curve graphs is provided. Figure 5 As shown, the method includes:

[0105] Step S301: Obtain the minimum gas source pressure threshold and the maximum gas source pressure threshold.

[0106] In this embodiment, the minimum air source pressure threshold refers to the minimum air source pressure required for the gear shifting actuator to perform the gear shifting action, and the maximum air source pressure threshold refers to the maximum air source pressure required for the gear shifting actuator to perform the gear shifting action. Specifically, if the air source pressure of the gear shifting actuator is less than the minimum air source pressure threshold, or greater than the maximum air source pressure threshold, the gear shifting actuator will be unable to perform the gear shifting action. The electronic control unit can obtain the minimum and maximum air source pressure thresholds for the gear shifting actuator to perform the gear shifting action through real vehicle testing.

[0107] Step S302: According to the preset pressure interval, set multiple calibrated gas source pressures between the minimum gas source pressure threshold and the maximum gas source pressure threshold.

[0108] In this embodiment, the electronic control unit can set multiple calibrated gas source pressures between the minimum gas source pressure threshold and the maximum gas source pressure threshold according to the preset pressure interval set in advance by the technician.

[0109] Step S303: Obtain the first action time and the second action time obtained through actual vehicle testing under each calibrated air source pressure.

[0110] In this embodiment, the electronic control unit can, according to actual conditions, calibrate the first action time of the gear selection valve to complete the gear selection action and the second action time of the gear shift valve to complete the gear shift action under each calibrated air source pressure through actual vehicle testing, thereby obtaining the first action time and the second action time corresponding to each air source pressure between the minimum air source pressure threshold and the maximum air source pressure threshold.

[0111] Step S304: Obtain the curve based on the first action time and the second action time corresponding to each calibrated gas source pressure.

[0112] In this embodiment, the electronic control unit can obtain a first action time curve based on the first action time corresponding to each calibrated gas source pressure; and obtain a second action time curve based on the second action time corresponding to each calibrated gas source pressure. Furthermore, a graph is obtained based on the first and second action time curves.

[0113] The method of this embodiment achieves the following technical effects: The electronic control unit obtains the minimum air source pressure threshold and the maximum air source pressure threshold for the gear shifting actuator to perform the gear shifting action, and sets multiple calibrated air source pressures between the minimum air source pressure threshold and the maximum air source pressure threshold according to a preset pressure interval, thereby obtaining the first action time and the second action time obtained by actual vehicle testing under each calibrated air source pressure, thus obtaining a curve. This solves the problems of how to obtain the first action time and the second action time, and how to generate the curve.

[0114] Figure 6 A flowchart illustrating the gear shifting method based on valve action time provided in this application embodiment. Figure 3 ,like Figure 6 As shown, in this embodiment... Figure 3 Based on the embodiments, this paper provides a detailed explanation of how to perform gear shifting based on the valve action time when the position sensor of the gear selection valve or the position sensor of the gear shift valve is not faulty. For example... Figure 6 As shown, the method includes:

[0115] Step S401: Detect the first working state of the position sensor of the gear selector valve and the second working state of the position sensor of the gear shift valve.

[0116] In this embodiment, the implementation of S401 is similar to that of S101, and will not be described again here.

[0117] Step S402: When the position sensor of the gear selection valve is normal in the first working state, a gear selection valve action command is sent to the gear selection actuator, and the first position information of the gear selection valve collected by the position sensor of the gear selection valve is obtained.

[0118] In this embodiment, when the position sensor of the gear selection valve is normal and no fault occurs, the electronic control unit performs gear selection control based on the position information of the gear selection valve collected in real time by the position sensor.

[0119] Step S403: When the distance between the gear selection valve and the first preset position indicated by the first position information is less than the first preset threshold, a gear selection valve stop operation command is sent to the gear selection actuator.

[0120] In this embodiment, the first preset position refers to the gear position of the gear selector valve that has been pre-calibrated. The first preset position can be the gear position of the gear selector valve that has been pre-calibrated according to the method of actual vehicle testing, or it can be the gear position of the gear selector valve that has been calibrated after the vehicle is off the production line.

[0121] When the distance between the gear selection valve and the first preset position is less than the first preset threshold, that is, when the gear selection valve reaches the range of the first preset position, the electronic control unit determines that the gear selection valve has selected the gear and sends a gear selection valve stop operation command to the gear selection actuator to complete the gear selection action.

[0122] Step S404: When the distance between the gear selection valve and the first preset position indicated by the first position information is not less than the first preset threshold, and the time for issuing the gear selection valve action command is not less than the first action time, a gear selection valve stop action command is issued to the gear shifting actuator.

[0123] In this embodiment, when the distance between the gear selection valve and the first preset position is not less than the first preset threshold, that is, when the gear selection valve has not reached the range of the first preset position, the electronic control unit cannot determine that the gear selection valve has reached the correct gear based on the position information of the gear selection valve collected in real time by the position sensor of the gear selection valve. In this case, if the time for the electronic control unit to send the gear selection valve action command to the gear selection actuator is not less than the first action time, that is, the time requirement for completing the gear selection action has been met, the electronic control unit can determine that the gear selection valve has reached the correct gear based on the action time of the gear selection valve, and send a gear selection valve stop action command to the gear selection actuator to complete the gear selection action.

[0124] In step S405, when the position sensor of the shift valve is faulty in the second working state indication, a shift valve action command is sent to the shift selector actuator, and after the second action time after sending the shift valve action command, a shift valve stop action command is sent to the shift selector actuator.

[0125] In this embodiment, the implementation of S405 is similar to that of S103, and will not be described again here.

[0126] Step S406: When the position sensor of the gear selection valve is faulty in the first working state indication, a gear selection valve action command is sent to the gear selection actuator, and after the first action time of sending the gear selection valve action command, a gear selection valve stop action command is sent to the gear selection actuator.

[0127] In this embodiment, the implementation of S406 is similar to that of S102, and will not be described again here.

[0128] Step S407: When the second working state indicates that the position sensor of the shift valve is normal, a shift valve action command is sent to the shift selector actuator, and the second position information of the shift valve collected by the position sensor of the shift valve is obtained.

[0129] In this embodiment, when the position sensor of the shift valve is normal and no fault occurs, the electronic control unit performs shift control based on the position information of the shift valve collected in real time by the position sensor of the shift valve.

[0130] In step S408, when the distance between the shift valve and the second preset position indicated by the second position information is less than the second preset threshold, a shift valve stop operation command is sent to the shift selector actuator.

[0131] In this embodiment, the second preset position refers to the gear position of the shift valve that has been pre-calibrated. The calibration of the second preset position is the same as the calibration of the first preset position. It can be the gear position of the shift valve that has been pre-calibrated according to the method of actual vehicle testing, or it can refer to the gear position of the shift valve that has been calibrated after the vehicle is off the production line.

[0132] When the distance between the shift valve and the second preset position is less than the second preset threshold, that is, when the shift valve reaches the range of the second preset position, the electronic control unit determines that the shift valve has shifted to the correct position and sends a shift valve stop operation command to the shift selector actuator to complete the shift operation.

[0133] Step S409: When the distance between the shift valve and the second preset position indicated by the second position information is not less than the second preset threshold, and the time for issuing the shift valve action command is not less than the second action time, a shift valve stop action command is issued to the shift selector actuator.

[0134] In this embodiment, when the distance between the shift valve and the second preset position is not less than the second preset threshold, that is, when the shift valve has not reached the range of the second preset position, the electronic control unit cannot determine that the shift valve has shifted to the correct position based on the position information of the shift valve collected in real time by the position sensor of the shift valve. In this case, if the time for the electronic control unit to send the shift valve action command to the shift selector actuator is not less than the second action time, that is, the time requirement for completing the shift action has been met, the electronic control unit can determine that the shift valve has shifted to the correct position based on the action time of the shift valve, and send a shift valve stop action command to the shift selector actuator to complete the shift action.

[0135] The method in this embodiment achieves the following technical effects: When the position sensor of the gear selection valve is normal and no fault occurs, the electronic control unit synchronously uses the method of determining whether the gear selection valve has reached the correct gear position based on the valve's action time. Even if the gear selection valve has not reached the range of the first preset position, but has already met the time requirement for completing the gear selection action, it is determined that the gear selection valve has reached the correct gear position, and a stop action command is issued to complete the gear selection action. This avoids the problem of relying solely on the position sensor of the gear selection valve to determine whether it has reached the correct gear position, which results in a single data source and low reliability. It achieves gear selection determination through multiple methods. The effect of the shift valve in gear selection is as follows: When the position sensor of the shift valve is normal and there is no fault, the electronic control unit synchronously uses the action time of the shift valve to determine whether the shift valve has shifted to the correct gear. Even if the shift valve has not reached the range of the second preset position, but has met the time requirement to complete the shift action, it is determined that the shift valve has shifted to the correct gear, and a stop action command for the shift valve is issued to complete the shift action. This avoids the problem of single data source and low reliability caused by relying solely on the position sensor of the shift valve to determine whether the shift valve has shifted to the correct gear. It achieves the effect of determining whether the shift valve has shifted to the correct gear through multiple methods.

[0136] Figure 7 A schematic diagram of the shifting device based on valve action time provided by the present invention is shown below. Figure 7 As shown, in this embodiment, the shifting device 300 based on valve actuation time can be located in an electronic device. The shifting device 300 based on valve actuation time includes:

[0137] The detection module 301 is used to detect the first working state of the position sensor of the gear selector valve and the second working state of the position sensor of the gear shift valve.

[0138] The gear selection module 302 is used to send a gear selection valve action command to the gear selection actuator when the position sensor of the gear selection valve is faulty in the first working state indication, and to send a gear selection valve stop action command to the gear selection actuator after the first action time of sending the gear selection valve action command, wherein the first action time refers to the time of the gear selection valve to complete the gear selection action.

[0139] The shift module 303 is used to send a shift valve action command to the shift selector actuator when the position sensor of the shift valve is faulty in the second working state, and to send a shift valve stop action command to the shift selector actuator after the second action time after sending the shift valve action command, wherein the second action time refers to the time for the shift valve to complete the shift action.

[0140] The shifting device based on valve action time provided in this embodiment can perform... Figure 3 The technical solution of the method embodiment shown has the same implementation principle and technical effect as... Figure 3The method and implementation examples shown are similar and will not be described again here.

[0141] Meanwhile, the shifting device based on valve action time provided by the present invention further refines the shifting device 300 based on valve action time based on the shifting device based on valve action time provided in the previous embodiment.

[0142] In one possible design, the device also includes:

[0143] The time query module is used to obtain the first action time and the second action time from a pre-stored curve based on the real-time air source pressure of the gear shifting actuator. The curve is used to indicate the correspondence between the first action time and the second action time and the air source pressure. Both the first action time and the second action time are negatively correlated with the air source pressure.

[0144] In one possible design, the device also includes:

[0145] The threshold acquisition module is used to acquire the minimum air source pressure threshold and the maximum air source pressure threshold. The minimum air source pressure threshold refers to the minimum air source pressure at which the gear shifting actuator performs the gear shifting action, and the maximum air source pressure threshold refers to the maximum air source pressure at which the gear shifting actuator performs the gear shifting action.

[0146] The pressure calibration module is used to set multiple calibration gas source pressures between the minimum gas source pressure threshold and the maximum gas source pressure threshold according to a preset pressure interval.

[0147] The time acquisition module is used to acquire the first action time and the second action time obtained through actual vehicle testing at each calibrated air source pressure.

[0148] The curve generation module is used to generate curves based on the first and second action times corresponding to each calibrated gas source pressure.

[0149] In one possible design, the gear selection module 302 is also used for:

[0150] When the position sensor of the gear selection valve is normal in the first working state, a gear selection valve action command is sent to the gear selection actuator, and the first position information of the gear selection valve collected by the position sensor of the gear selection valve is obtained.

[0151] When the distance between the gear selection valve and the first preset position is less than the first preset threshold, a gear selection valve stop operation command is sent to the gear selection actuator. The first preset position refers to the gear position of the gear selection valve that has been pre-calibrated.

[0152] In one possible design, the gear selection module 302 is also used for:

[0153] When the distance between the first position information indicating the gear selection valve and the first preset position is not less than the first preset threshold, and the time for issuing the gear selection valve action command is not less than the first action time, a gear selection valve stop action command is issued to the gear shifting actuator.

[0154] In one possible design, the shift module 303 is also used for:

[0155] When the position sensor of the shift valve is normal in the second working state, a shift valve action command is sent to the shift selector actuator, and the second position information of the shift valve collected by the position sensor of the shift valve is obtained.

[0156] When the distance between the shift valve and the second preset position indicated by the second position information is less than the second preset threshold, a shift valve stop operation command is sent to the shift selector actuator, wherein the second preset position refers to the pre-calibrated shift valve gear position.

[0157] In one possible design, the shift module 303 is also used for:

[0158] When the distance between the shift valve and the second preset position indicated by the second position information is not less than the second preset threshold, and the time for issuing the shift valve action command is not less than the second action time, a shift valve stop action command is issued to the shift selector actuator.

[0159] This embodiment provides a shifting device based on valve action time, which can execute a shifting method based on valve action time in the above embodiment. Its implementation principle and technical effect are similar, and will not be described again here.

[0160] In the aforementioned specific implementation of a shifting device based on valve action time, each module can be implemented as a processor. The processor can execute computer execution instructions stored in the memory, causing the processor to execute the aforementioned shifting method based on valve action time.

[0161] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 8 As shown, the electronic device 400 includes at least one processor 410 and a memory 420. The electronic device 400 also includes a communication component 430. The processor 410, memory 420, and communication component 430 are connected via a bus 440.

[0162] In the specific implementation process, at least one processor 410 executes computer execution instructions stored in memory 420, causing at least one processor 410 to execute a shifting method based on valve action time as executed on the electronic device side as described above.

[0163] The specific implementation process of processor 410 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0164] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0165] The memory may include high-speed RAM, and may also include non-volatile storage (NVM), such as at least one disk storage.

[0166] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0167] The above description of the functions implemented by electronic devices and main control devices has introduced the solutions provided by the embodiments of the present invention. It is understood that, in order to implement the above functions, the electronic device or main control device includes hardware structures and / or software modules corresponding to the execution of each function. By combining the units and algorithm steps of the various examples described in the embodiments of the present invention, the embodiments of the present invention can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present invention.

[0168] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the above-described shifting method based on valve action time.

[0169] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0170] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in an electronic device or a host device.

[0171] This application also provides a computer program product, including a computer program stored in a readable storage medium, wherein at least one processor of an electronic device can read the computer program from the readable storage medium, and the at least one processor executes the computer program to cause the electronic device to perform the scheme provided in any of the above embodiments.

[0172] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disk, or optical disk.

[0173] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the embodiments thereof that follow the general principles of the embodiments and include common knowledge or customary techniques in the art not disclosed in the embodiments thereof. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

[0174] It should be understood that the embodiments of the present invention are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments of the present invention is limited only by the appended claims.

[0175] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A gear shifting method based on valve action time, characterized in that, The valve includes a selector valve and a shift valve, and the method includes: The first operating state of the position sensor of the gear selector valve and the second operating state of the position sensor of the gear shift valve are detected. When the first working state indicates that the position sensor of the gear selection valve is faulty, a gear selection valve action command is sent to the gear selection actuator, and a gear selection valve stop action command is sent to the gear selection actuator after the first action time of sending the gear selection valve action command, wherein the first action time refers to the time when the gear selection valve completes the gear selection action. When the position sensor of the shift valve is indicated to be faulty in the second working state, a shift valve action command is sent to the shift selector actuator, and a shift valve stop action command is sent to the shift selector actuator after the second action time after the shift valve action command is sent, wherein the second action time refers to the time when the shift valve completes the shift action. After issuing the gear selection valve actuation command to the gear selection actuator, the method further includes: Based on the real-time air source pressure of the gear shifting actuator, the first action time and the second action time are obtained from a pre-stored curve, wherein the curve indicates the correspondence between the first action time and the second action time and the air source pressure, and both the first action time and the second action time are negatively correlated with the air source pressure; before obtaining the first action time and the second action time from the pre-stored curve based on the real-time air source pressure of the gear shifting actuator, the method further includes: Obtain the minimum air source pressure threshold and the maximum air source pressure threshold, wherein the minimum air source pressure threshold refers to the minimum air source pressure at which the gear shifting actuator performs the gear shifting action, and the maximum air source pressure threshold refers to the maximum air source pressure at which the gear shifting actuator performs the gear shifting action; According to a preset pressure interval, multiple calibrated gas source pressures are set between the minimum gas source pressure threshold and the maximum gas source pressure threshold. Obtain the first and second action times obtained through actual vehicle testing at each calibrated air source pressure; The curve is obtained based on the first and second action times corresponding to each of the calibrated gas source pressures.

2. The method according to claim 1, characterized in that, The method further includes: When the first working state indicates that the position sensor of the gear selection valve is normal, the gear selection valve action command is sent to the gear selection actuator, and the first position information of the gear selection valve collected by the position sensor of the gear selection valve is obtained. When the first position information indicates that the distance between the gear selection valve and the first preset position is less than the first preset threshold, a stop operation command for the gear selection valve is issued to the gear selection actuator, wherein the first preset position refers to the gear position of the gear selection valve that has been pre-calibrated.

3. The method according to claim 2, characterized in that, The method further includes: When the distance between the gear selection valve and the first preset position indicated by the first position information is not less than the first preset threshold, and the time for issuing the gear selection valve action command is not less than the first action time, a gear selection valve stop action command is issued to the gear shifting actuator.

4. The method according to claim 1 or 3, characterized in that, The method further includes: When the second working state indicates that the position sensor of the shift valve is normal, the shift valve action command is sent to the shift selector actuator, and the second position information of the shift valve collected by the position sensor of the shift valve is obtained. When the second position information indicates that the distance between the shift valve and the second preset position is less than the second preset threshold, a command to stop the shift valve is sent to the shift selector actuator, wherein the second preset position refers to the pre-calibrated gear position of the shift valve.

5. The method according to claim 4, characterized in that, The method further includes: When the second position information indicates that the distance between the shift valve and the second preset position is not less than the second preset threshold, and the time for issuing the shift valve action command is not less than the second action time, the shift valve stop action command is issued to the shift selector actuator.

6. A shifting device based on valve actuation time, characterized in that, The valve includes a selector valve and a shift valve, and the device includes: The detection module is used to detect the first working state of the position sensor of the gear selector valve and the second working state of the position sensor of the gear shift valve. The gear selection module is used to send a gear selection valve action command to the gear selection actuator when the position sensor of the gear selection valve is indicated to be faulty in the first working state, and to send a gear selection valve stop action command to the gear selection actuator after a first action time after sending the gear selection valve action command, wherein the first action time refers to the time when the gear selection valve completes the gear selection action. The shift module is used to send a shift valve action command to the shift valve selection actuator when the position sensor of the shift valve is indicated to be faulty in the second working state, and to send a shift valve stop action command to the shift valve selection actuator after a second action time after sending the shift valve action command, wherein the second action time refers to the time when the shift valve completes the shift action. The time query module is used to obtain the first action time and the second action time from a pre-stored curve based on the real-time air source pressure of the gear shifting actuator. The curve is used to indicate the correspondence between the first action time and the second action time and the air source pressure, and both the first action time and the second action time are negatively correlated with the air source pressure. The threshold acquisition module is used to acquire the minimum air source pressure threshold and the maximum air source pressure threshold, wherein the minimum air source pressure threshold refers to the minimum air source pressure for the gear shifting actuator to perform the gear shifting action, and the maximum air source pressure threshold refers to the maximum air source pressure for the gear shifting actuator to perform the gear shifting action. The pressure calibration module is used to set multiple calibration gas source pressures between the minimum gas source pressure threshold and the maximum gas source pressure threshold according to a preset pressure interval. The time acquisition module is used to acquire the first action time and the second action time obtained through actual vehicle testing at each calibrated air source pressure. The curve generation module is used to generate the curve based on the first action time and the second action time corresponding to each of the calibrated gas source pressures.

7. An electronic device, characterized in that, include: Memory and processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the shifting method based on valve action time as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the shifting method based on valve action time as described in any one of claims 1 to 5.

9. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the shifting method based on valve action time as described in any one of claims 1 to 5.

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