Gear shifting control method and device, equipment and storage medium

Abstract

The invention discloses a gear shifting control method and device, equipment and a storage medium. The gear shifting control method comprises the steps that when a gear shifting signal is obtained, a pre-excitation current signal of first preset time is output to a combination gear electromagnetic valve, and a first descending current signal is output to a separation gear electromagnetic valve; after the first preset time, a pre-charging current signal of a third preset time is output to the combination gear electromagnetic valve; the current value of the pre-excitation current signal is greater than that of the pre-charging current signal; the third preset time is longer than the first preset time; and after third preset time, the first gear shifting current signal is output to the combination gear electromagnetic valve, and the second gear shifting current signal is output to the separation gear electromagnetic valve, so that the gear shifting action is completed. According to the technical scheme, the problem of response delay of the electromagnetic valve in the oil filling process is solved, the oil pressure building time is prevented from being prolonged, and the responsiveness and smoothness in the gear shifting process are improved.

Description

Technical Field

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

[0002] The current existing shifting strategy requires the oil pump to gradually build up pressure from low pressure, and the oil chamber filling is delayed. The problem of slow response of the solenoid valve (static friction is not quickly broken through) is not taken into account, resulting in prolonged oil pressure building time and affecting the smoothness of the shifting process. Summary of the Invention

[0003] The present invention provides a shift control method, device, equipment and storage medium to solve the problem in the prior art that the oil pressure build-up time is prolonged, affecting the smoothness of the shift process.

[0004] According to a first aspect of the present invention, there is provided a shift control method, comprising:

[0005] When a shift signal is obtained, a pre-excitation current signal of a first preset time is output to the engaging shift solenoid valve, and a first decreasing current signal is output to the disengaging shift solenoid valve;

[0006] After the first preset time, a pre-charge current signal of a third preset time is output to the combined gear solenoid valve; the current value of the pre-excitation current signal is greater than the current value of the pre-charge current signal; the third preset time is greater than the first preset time;

[0007] After the third preset time, the first shift current signal is output to the engaging shift solenoid valve, and the second shift current signal is output to the disengaging shift solenoid valve to complete the shifting action.

[0008] Optionally, before outputting the pre-excitation current signal of the first preset time to the gear solenoid valve, the method further includes:

[0009] Get the demand opening;

[0010] The first preset time and the pre-excitation current signal are determined according to the required opening.

[0011] Optionally, before outputting the pre-charge current signal of the third preset time to the combined shift solenoid valve, the method further includes:

[0012] Get the amount of pre-filled oil;

[0013] The third preset time and the pre-charge current signal are determined according to the pre-charge oil amount.

[0014] Optionally, before outputting the first shift current signal to the combined shift solenoid valve, the method further includes:

[0015] Output a semi-engaged current signal to the engaged gear solenoid valve; wherein the semi-engaged current signal is smaller than the pre-charge current signal.

[0016] Optionally, outputting a first shift current signal to the engaging shift solenoid valve and then outputting a second shift current signal to the disengaging shift solenoid valve includes:

[0017] Obtaining the clutch driving wheel speed and the clutch driven wheel speed;

[0018] When the speed difference between the clutch driving wheel speed and the clutch driven wheel speed is less than the preset speed difference, the first shift current signal is output to the engaging gear solenoid valve, and then the second shift current signal is output to the disengaging gear solenoid valve.

[0019] Optionally, the first shift signal includes a first increasing current signal and a second increasing current signal; the second shift signal includes a second decreasing current signal and a current maintaining signal; the current increasing rate corresponding to the first increasing current signal is smaller than the current increasing rate of the second increasing current signal; the current decreasing rate of the second decreasing current signal is smaller than the current decreasing rate of the first decreasing current signal;

[0020] Outputting a first shift current signal to the engaging shift solenoid valve and outputting a second shift current signal to the disengaging shift solenoid valve, including:

[0021] Outputting a first increasing current signal of a fourth preset time to the engaging shift solenoid valve, and outputting a second decreasing current signal of a fourth preset time to the disengaging shift solenoid valve;

[0022] After a fourth preset time, a second increasing current signal is output to the engaging shift solenoid valve, and a current maintaining signal is output to the disengaging shift solenoid valve.

[0023] Optionally, after outputting the second current increase signal to the engaging shift solenoid valve and the current maintaining signal to the disengaging shift solenoid valve, the method further includes:

[0024] Get the real-time current value of the gear solenoid valve;

[0025] When the real-time current value is equal to the preset current value, the current value of the separation gear solenoid valve is controlled to be 0.

[0026] According to a second aspect of the present invention, there is provided a gear shift control device, characterized in that it is used to execute the gear shift control method, and the gear shift control device includes:

[0027] A gear shift acquisition module, configured to output a pre-excitation current signal of a first preset time to the engaging gear position solenoid valve and output a first decreasing current signal to the disengaging gear position solenoid valve when acquiring a gear shift signal;

[0028] The solenoid valve control module is configured to output a pre-charge current signal of a third preset time to the combined gear solenoid valve after the first preset time; the current value of the pre-charge current signal is greater than the current value of the pre-charge current signal; and the third preset time is greater than the first preset time;

[0029] The shift module is used to output a first shift current signal to the engaging shift solenoid valve and then output a second shift current signal to the disengaging shift solenoid valve after a third preset time to complete the shift action.

[0030] According to a third aspect of the present invention, a computer device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements a shift control method when executing the program.

[0031] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, a shift control method is implemented.

[0032] The technical solution of the present invention is to pre-apply a pre-excitation current signal of a first preset time to the combined gear solenoid valve when receiving the gear shift signal, thereby quickly opening the combined gear solenoid valve, pre-filling the combined gear solenoid valve after pre-excitation, and outputting a pre-charge current signal of a third preset time, and pre-filling a certain amount of oil into the oil chamber. This arrangement improves the problem of response delay of the solenoid valve during the oil filling process, avoids the extension of the oil pressure building time, and improves the responsiveness and smoothness of the gear shifting process.

[0033] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 is a flow chart of a first shift control method provided according to an embodiment of the present invention;

[0036] Figure 2 is a schematic diagram of current changes during a gear shifting process provided by an embodiment of the present invention;

[0037] Figure 3 is a flow chart of a second shift control method provided according to an embodiment of the present invention;

[0038] Figure 4 is a flow chart of a third shift control method provided according to an embodiment of the present invention;

[0039] Figure 5 is a flow chart of a fourth shift control method provided according to an embodiment of the present invention;

[0040] Figure 6 is a flow chart of a fifth shift control method provided according to an embodiment of the present invention;

[0041] Figure 7 is a flow chart of a sixth shift control method provided according to an embodiment of the present invention;

[0042] Figure 8 is a flow chart of a seventh shift control method provided according to an embodiment of the present invention;

[0043] Figure 9 is a connection diagram of a shift control device provided according to an embodiment of the present invention;

[0044] Figure 10 1 is a schematic structural diagram of an electronic device applied to a gear shift control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions 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 embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0046] It should be noted that the terms "first", "second", etc. in the description 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 numbers used in this way can be interchanged 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 clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0047] Figure 1 FIG. 1 is a flow chart of a first shift control method according to an embodiment of the present invention. Figure 1 As shown, the shift control method includes:

[0048] S10 , when obtaining a shift signal, outputting a pre-excitation current signal of a first preset time to the engaging shift solenoid valve, and outputting a first decreasing current signal to the disengaging shift solenoid valve.

[0049] The shift control method in the embodiments of the present invention can be applied to a continuously variable transmission. The continuously variable transmission includes an engaging gear solenoid valve and a disengaging gear solenoid valve. The engaging gear solenoid valve can be used to control the engagement of a target gear by supplying hydraulic oil to the clutch of the target gear, thereby engaging the transmission structure of that gear. The disengaging gear solenoid valve can be used to control the disengagement of the current gear by cutting off the hydraulic oil supply to the corresponding clutch, thereby disconnecting the power transmission path of the current gear.

[0050] When a shift signal is received, a first decreasing current signal is output to the disengagement solenoid valve to control the clutch of the corresponding gear to begin disengaging. This first decreasing current signal can control the current value of the disengagement solenoid valve to decrease at a fixed rate over a certain period of time, thereby continuously reducing the opening to cut off the supply of hydraulic oil. This first decreasing current signal can be obtained through pre-calibration.

[0051] Among them, when obtaining the shift signal, a pre-excitation current signal of the first preset time is output to the combined gear solenoid valve to pre-open the combined gear solenoid valve. The first preset time and the pre-excitation current signal can be obtained in advance, and can be specifically set according to the opening of the combined gear solenoid valve as needed. Since the solenoid valve in the prior art has the problem of response delay, this will cause oil pressure filling delay, and then the oil pressure establishment time is prolonged, affecting the responsiveness and smoothness of the gear shift. Therefore, when obtaining the shift signal, the embodiment of the present invention pre-outputs the pre-excitation current signal of the first preset time to the combined gear solenoid valve, and controls the combined gear solenoid valve to have a certain opening in advance, so as to improve the problem of response delay of the solenoid valve during the oil filling process and improve the responsiveness and smoothness of the gear shift.

[0052] In actual application, the first preset time is 20ms, and the current value corresponding to the pre-excitation current signal is 820mA, that is, a short-time high-current signal is applied to control the pre-opening of the gear solenoid valve.

[0053] S11. After the first preset time, output a pre-charge current signal for a third preset time to the combined shift solenoid valve. The current value of the pre-charge current signal is greater than the current value of the pre-charge current signal. The third preset time is greater than the first preset time.

[0054] Before the hydraulic actuator officially activates, a certain amount of oil is pre-filled into the oil chamber to eliminate mechanical play and build initial pressure. Therefore, after a first preset time, the pre-excitation phase ends, the shift solenoid valve opens to a certain angle, and a pre-charge current signal is continuously output to the shift solenoid valve for a third preset time. The third preset time and the magnitude of the pre-charge current signal can be pre-set and are related to the amount of oil filled. The current value of the pre-excitation current signal is greater than the current value of the pre-charge current signal. The purpose of the pre-excitation current signal is to quickly open the shift solenoid valve. The purpose of the pre-charge current signal is to control the shift solenoid valve to supply a certain amount of oil based on the predetermined opening angle, thereby eliminating clutch idle travel. The third preset time is greater than the first preset time. The third preset time can be the time required to fill a fixed amount of oil based on the current opening angle, while the first preset time can be the response time of the shift solenoid valve.

[0055] S12: After a third preset time, output a first shift current signal to the engaging shift position solenoid valve, and output a second shift current signal to the disengaging shift position solenoid valve to complete the shifting action.

[0056] Among them, after the oil is pre-filled, the first shift current signal is output to the combined gear solenoid valve to engage the transmission structure, and the second shift current signal is output to the separated gear solenoid valve to cut off the current gear and complete the shift action.

[0057] For example, Figure 2 is a schematic diagram of current changes during a gear shifting process according to an embodiment of the present invention. Figure 2 The red line in the diagram corresponds to the current change of the engaged gear solenoid valve, and the green line corresponds to the current change of the disengaged gear solenoid valve. When obtaining the shift signal, the engaged gear solenoid valve is first pre-excited for a preset time of 20ms with a pre-excitation current signal of 820mA. At the same time, a first decreasing current signal is output to the disengaged gear solenoid valve to control the opening of the disengaged gear solenoid valve to gradually decrease, thereby gradually cutting off the supply of hydraulic oil to the corresponding gear clutch. Figure 2 After the pre-excitation phase ends, that is, after the first preset time, a pre-charge current signal of 0.2s is output to the engaging gear solenoid valve for pre-charging to eliminate the idle stroke of the clutch. At the same time, the first decreasing current signal is continuously output to the disengaging gear solenoid valve to control the opening of the disengaging gear solenoid valve to gradually decrease, such as Figure 2 After the pre-charge phase is completed, after the third preset time, the first shift current signal is output to the combined gear solenoid valve, and then the second shift current signal is output to the separated gear solenoid valve to complete the shift action, such as Figure 2 The corresponding parts of S3, S4 and S5.

[0058] The technical solution of the embodiment of the present invention is to pre-apply a pre-excitation current signal of a first preset time to the combined gear solenoid valve when receiving the gear shift signal, thereby quickly opening the combined gear solenoid valve, pre-filling the combined gear solenoid valve after pre-excitation, and outputting a pre-charge current signal of a third preset time, and pre-filling a certain amount of oil into the oil chamber. This arrangement improves the problem of response delay of the solenoid valve during the oil filling process, avoids the extension of the oil pressure building time, and improves the responsiveness and smoothness of the gear shifting process.

[0059] Based on the above embodiments, Figure 3 is a flow chart of a second shift control method provided according to an embodiment of the present invention. Figure 3 As shown, the shift control method includes:

[0060] S20. Obtain the required opening degree.

[0061] The required opening may be an opening corresponding to overcoming static friction.

[0062] S21. Determine a first preset time and a pre-excitation current signal according to the required opening.

[0063] The first preset time and the pre-excitation current signal are determined according to the required opening, so that when the pre-excitation current signal of the first preset time is output, the gear solenoid valve is opened to a certain angle to overcome static friction.

[0064] S22 , when obtaining a shift signal, outputting a pre-excitation current signal of a first preset time to the engaging shift position solenoid valve, and outputting a first decreasing current signal to the disengaging shift position solenoid valve.

[0065] S23: After the first preset time, output a pre-charge current signal for a third preset time to the combined gear solenoid valve.

[0066] S24. After a third preset time, output a first shift current signal to the engaging shift position solenoid valve, and output a second shift current signal to the disengaging shift position solenoid valve to complete the shifting action.

[0067] The technical solution of the embodiment of the present invention obtains the required opening, determines the first preset time and pre-excitation current signal according to the required opening, and ensures that when the pre-excitation current signal of the first preset time is output to the combined gear solenoid valve, the combined gear solenoid valve responds to open a certain angle, thereby avoiding the extension of the oil pressure establishment time and improving the smoothness of the gear shifting.

[0068] Based on the above embodiments, Figure 4 is a flow chart of a third shift control method provided according to an embodiment of the present invention. Figure 4 As shown, the shift control method includes:

[0069] S30: Obtain the amount of pre-filled oil.

[0070] The pre-filled oil volume may be the oil volume pre-input into the oil gun.

[0071] S31. Determine a third preset time and a pre-charge current signal according to the pre-fill oil amount.

[0072] Among them, since the pre-charge current signal can control the opening of the gear solenoid valve, thereby determining the oil flow rate; the third preset time can represent the time for supplying oil at a fixed flow rate, the third preset time and the pre-charge current signal can be determined according to the pre-charge oil volume, thereby eliminating the idle stroke of the clutch.

[0073] S32: When obtaining the shift signal, output a pre-excitation current signal of a first preset time to the engaging shift solenoid valve, and output a first decreasing current signal to the disengaging shift solenoid valve.

[0074] S33: After the first preset time, output a pre-charge current signal of a third preset time to the combined gear solenoid valve.

[0075] S34. After a third preset time, output a first shift current signal to the engaging shift position solenoid valve, and output a second shift current signal to the disengaging shift position solenoid valve to complete the shifting action.

[0076] The technical solution of the embodiment of the present invention obtains the pre-filled oil volume, determines the third preset time and the pre-filled current signal according to the pre-filled oil volume, and then controls a fixed amount of oil to enter the oil chamber, eliminates the mechanical gap and establishes the initial pressure, thereby eliminating the clutch idle stroke.

[0077] Based on the above embodiments, Figure 5 is a flowchart of a fourth shift control method provided according to an embodiment of the present invention, combined with Figure 2 and Figure 5 As shown, the shift control method includes:

[0078] S40 , when obtaining a shift signal, outputting a pre-excitation current signal of a first preset time to the engaging shift position solenoid valve, and outputting a first decreasing current signal to the disengaging shift position solenoid valve.

[0079] S41. After the first preset time, output a pre-charge current signal for a third preset time to the combined gear solenoid valve.

[0080] S42: After a third preset time, output a semi-engaged current signal to the engaged shift solenoid valve, wherein the semi-engaged current signal is smaller than the pre-charge current signal.

[0081] The purpose of outputting the semi-engaged current signal may be to maintain the engaged gear solenoid valve at the clutch semi-engaged point. The clutch semi-engaged point may be a critical position during the clutch or brake engagement process where the friction plate and the mating plate have just made physical contact but have not yet transmitted torque.

[0082] S43 , outputting a first shift current signal to the engaging shift position solenoid valve, and outputting a second shift current signal to the disengaging shift position solenoid valve, to complete the shifting action.

[0083] Specifically, after the pre-charge phase is completed, a semi-engagement current signal is output to place the clutch solenoid valve at the semi-engagement point. At this time, the current of the disengagement solenoid valve continues to decrease, waiting for the shifting opportunity. Figure 2 The corresponding position of S3 in .

[0084] The technical solution of the embodiment of the present invention maintains the gear solenoid valve at the half-engagement point of the clutch after the pre-charging stage, waiting for the gear shifting opportunity, thereby improving the gear shifting success rate.

[0085] Based on the above embodiments, Figure 6 is a flowchart of a fifth shift control method provided according to an embodiment of the present invention, Figure 2 and Figure 6 As shown, the shift control method includes:

[0086] S50 , when obtaining a shift signal, outputting a pre-excitation current signal of a first preset time to the engaging shift position solenoid valve, and outputting a first decreasing current signal to the disengaging shift position solenoid valve.

[0087] S51 . After the first preset time, output a pre-charge current signal for a third preset time to the combined shift solenoid valve.

[0088] S52: After a third preset time, output a semi-engaged current signal to the engaged shift solenoid valve, wherein the semi-engaged current signal is smaller than the pre-charge current signal.

[0089] S53: Obtain the clutch driving wheel speed and the clutch driven wheel speed.

[0090] Among them, the clutch driving wheel speed and the clutch driven wheel speed can be the clutch driving wheel speed and the driven wheel speed corresponding to the target gear. Since the driving wheel and the driven wheel need to engage and shift gears, the clutch driving wheel speed and the clutch driven wheel speed are obtained in real time and the speed difference between the two is determined.

[0091] S54: When the speed difference between the clutch driving wheel speed and the clutch driven wheel speed is less than the preset speed difference, a first shift current signal is output to the engaging gear solenoid valve, and a second shift current signal is output to the disengaging gear solenoid valve.

[0092] Among them, when the speed difference between the clutch driving wheel speed and the clutch driven wheel speed is less than the preset speed difference, it means that the gear shifting condition is met at this time, and the first gear shifting current signal is output to the engaging gear solenoid valve, and the second gear shifting current signal is output to the disengaging gear solenoid valve to perform the gear shifting action, such as Figure 2 The corresponding places of S4 and S5 in .

[0093] The technical solution of the embodiment of the present invention improves the success rate of gear shifting by obtaining the speed difference between the clutch driving wheel speed and the clutch driven wheel speed in real time when the gear solenoid valve is maintained at the clutch half-engagement point, and performing gear shifting when the speed difference is less than the preset speed difference.

[0094] Based on the above embodiment, the first shift signal includes a first increasing current signal and a second increasing current signal; the second shift signal includes a second decreasing current signal and a current maintaining signal; the current increase rate corresponding to the first increasing current signal is less than the current increase rate of the second increasing current signal; the current decrease rate of the second decreasing current signal is less than the current decrease rate of the first decreasing current signal. Figure 7 is a flow chart of a sixth shift control method provided according to an embodiment of the present invention. Figure 7 As shown, the shift control method includes:

[0095] S60 , when obtaining the shift signal, outputting a pre-excitation current signal of a first preset time to the engaging shift position solenoid valve, and outputting a first decreasing current signal to the disengaging shift position solenoid valve.

[0096] S61: After the first preset time, output a pre-charge current signal for a third preset time to the combined gear solenoid valve.

[0097] S62: Output a first increasing current signal of a fourth preset time to the engaging shift solenoid valve, and output a second decreasing current signal of a fourth preset time to the disengaging shift solenoid valve.

[0098] Among them, the shifting process is also divided into two stages. The first stage is the torque exchange stage, outputting the first increasing current signal and the second decreasing current signal, outputting the first increasing current signal of the fourth preset time to the combined gear solenoid valve, so that the opening of the combined gear solenoid valve increases, and outputting the second decreasing current signal of the fourth preset time to the disengaging gear solenoid valve, so that the opening of the disengaging gear solenoid valve continues to decrease, and the torque exchange is performed, such as Figure 2 Corresponding to S4 in .

[0099] In actual working process, the fourth preset time may be 0.15s.

[0100] S63: After a fourth preset time, output a second current increase signal to the engaging gear solenoid valve, and output a current maintaining signal to the disengaging gear solenoid valve.

[0101] Among them, the second stage is the fast engagement stage. At this time, the second increase current signal is output to the engagement gear solenoid valve, and the opening of the engagement gear solenoid valve continues to increase, but the increase rate in the second stage is greater than the increase rate in the first stage to achieve fast engagement. The output current maintenance signal is sent to the separation gear solenoid valve to control the separation gear solenoid valve to maintain the current opening, such as Figure 2 The corresponding position of S5 in .

[0102] The technical solution of the embodiment of the present invention first outputs the first increasing current signal and the second decreasing current signal of the fourth preset time during the gear shifting process, and then outputs the second increasing current signal and the current maintaining signal to ensure the smoothness of the gear shifting process.

[0103] Based on the above embodiments, Figure 8 is a flow chart of a seventh shift control method provided according to an embodiment of the present invention. Figure 8 As shown, the shift control method includes:

[0104] S70 , when obtaining a shift signal, outputting a pre-excitation current signal of a first preset time to the engaging shift position solenoid valve, and outputting a first decreasing current signal to the disengaging shift position solenoid valve.

[0105] S71. After the first preset time, output a pre-charge current signal for a third preset time to the combined gear solenoid valve.

[0106] S72: Output a first increasing current signal of a fourth preset time to the engaging shift solenoid valve, and output a second decreasing current signal of a fourth preset time to the disengaging shift solenoid valve.

[0107] S73: After a fourth preset time, output a second current increase signal to the engaging gear solenoid valve, and output a current maintaining signal to the disengaging gear solenoid valve.

[0108] S74: Obtain the real-time current value of the gear solenoid valve.

[0109] Among them, since the opening of the combined gear solenoid valve is gradually increased due to the output of the second increasing current signal, the real-time current value of the combined gear solenoid valve is obtained in real time, and the opening of the combined gear solenoid valve can be monitored in real time.

[0110] S75. When the real-time current value is equal to the preset current value, the current value of the separation gear solenoid valve is controlled to be 0.

[0111] Among them, when the real-time current value is equal to the preset current value, it means that the gear is combined and completed, so the current value of the control separation gear solenoid valve is 0, and the gear hydraulic oil continues to be supplied. Figure 2 The corresponding position of S5 in .

[0112] The technical solution of the embodiment of the present invention continues to obtain the real-time current value of the engagement gear solenoid valve after outputting the second current increase signal and the current maintenance signal, and determines whether the engagement gear is completed, and controls the current value of the disengagement gear solenoid valve to be 0 after the engagement is completed, maintains the supply of hydraulic oil, and ensures the smoothness of the gear shifting process.

[0113] Based on the same inventive concept, Figure 9 is a connection diagram of a shift control device provided according to an embodiment of the present invention, such as Figure 9 As shown, an embodiment of the present invention provides a shift control device for executing a shift control method, the shift control device comprising:

[0114] The gear shift acquisition module 100 is used to output a pre-excitation current signal of a first preset time to the engaging gear position solenoid valve and output a first decreasing current signal to the disengaging gear position solenoid valve when acquiring the gear shift signal.

[0115] The solenoid valve control module 200 is configured to output a pre-charge current signal for a third preset time to the engaged shift solenoid valve after the first preset time. The current value of the pre-charge current signal is greater than the current value of the pre-charge current signal; and the third preset time is greater than the first preset time.

[0116] The shift module 300 is configured to output a first shift current signal to the engaging shift solenoid valve and then output a second shift current signal to the disengaging shift solenoid valve after a third preset time, so as to complete the shifting action.

[0117] Specifically, the shift acquisition module 100 first outputs a pre-excitation current signal for a first preset time to the engaging solenoid valve and a first descending current signal to the disengaging solenoid valve when acquiring a shift signal. The solenoid valve control module 200 then outputs a pre-charge current signal for a third preset time to the engaging solenoid valve after the first preset time. The current value of the pre-excitation current signal is greater than the current value of the pre-charge current signal; the third preset time is greater than the first preset time. The shift module 300 then outputs a first shift current signal to the engaging solenoid valve and then a second shift current signal to the disengaging solenoid valve after the third preset time to complete the shift action.

[0118] The technical solution of the embodiment of the present invention improves the problem of response delay of the solenoid valve during the oil filling process through the gear shift acquisition module, the solenoid valve control module and the gear shift module, avoids the extension of the oil pressure establishment time, and improves the responsiveness and smoothness of the gear shift process.

[0119] Based on the same inventive concept, an embodiment of the present invention further provides a computer device, Figure 10 FIG. 1 is a schematic diagram of the structure of an electronic device applied to a shift control method according to an embodiment of the present invention. Figure 10 As shown, it includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor. When the processor executes the program, the gear shift control method is implemented.

[0120] Among them, electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic device can also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are only for example and are not intended to limit the implementation of the invention described and / or claimed herein.

[0121] like Figure 10 As shown, the electronic device 50 includes at least one processor 51 and a memory, such as a read-only memory (ROM) 52, a random access memory (RAM) 53, etc., which is communicatively connected to the at least one processor 51. The memory stores a computer program that can be executed by the at least one processor. The processor 51 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 52 or the computer program loaded from the storage unit 58 into the random access memory (RAM) 53. Various programs and data required for the operation of the electronic device 50 can also be stored in the RAM 53. The processor 51, ROM 52, and RAM 53 are connected to each other via a bus 54. An input / output (I / O) interface 55 is also connected to the bus 54.

[0122] Multiple components in the electronic device 50 are connected to the I / O interface 55, including an input unit 56, such as a keyboard, a mouse, etc.; an output unit 57, such as various types of displays, speakers, etc.; a storage unit 58, such as a magnetic disk, an optical disk, etc.; and a communication unit 59, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 59 allows the electronic device 50 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0123] The processor 51 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of the processor 51 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any other suitable processor, controller, microcontroller, etc. The processor 51 executes the various methods and processes described above, such as those applied to the gear shift control method.

[0124] Based on the same inventive concept, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which implements a shift control method when executed by a processor.

[0125] Of course, the computer-readable storage medium provided in the embodiment of the present invention, whose computer-executable instructions are not limited to the above method operations, can also perform related operations in the shift control method provided in any embodiment of the present invention, and continue to refer to Figure 10 As shown, it is tangibly contained in a computer-readable storage medium, such as storage unit 58. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 50 via ROM 52 and / or communication unit 59. When the computer program is loaded into RAM 53 and executed by processor 51, one or more steps of the gear shift control method described above can be performed. Alternatively, in other embodiments, processor 51 can be configured to execute the gear shift control method in any other suitable manner (e.g., via firmware).

[0126] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0127] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0128] In the context of an embodiment of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. A computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. A more specific example of a machine-readable storage medium can include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0129] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0130] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0131] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within a cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0132] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0133] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A shift control method, characterized in that: include: When a shift signal is obtained, a pre-excitation current signal of a first preset time is output to the engaging shift solenoid valve, and a first decreasing current signal is output to the disengaging shift solenoid valve; After the first preset time, outputting a pre-charge current signal of a third preset time to the engaging gear solenoid valve; the current value of the pre-excitation current signal is greater than the current value of the pre-charge current signal; the third preset time is greater than the first preset time; After the third preset time, a first shift current signal is output to the engaging shift position solenoid valve, and a second shift current signal is output to the disengaging shift position solenoid valve to complete the shifting action.

2. The shift control method according to claim 1, characterized in that: Before outputting a pre-excitation current signal of a first preset time to the combined shift solenoid valve, the method further includes: Get the demand opening; The first preset time and the pre-excitation current signal are determined according to the required opening.

3. The shift control method according to claim 1, characterized in that: Before outputting the pre-charge current signal of the third preset time to the combined shift solenoid valve, the method further includes: Get the amount of pre-filled oil; A third preset time and a pre-charge current signal are determined according to the pre-fill oil amount.

4. The shift control method according to claim 1, characterized in that: Before outputting the first shift current signal to the engaging shift solenoid valve, the method further includes: Outputting a semi-combined current signal to the combined gear solenoid valve; wherein the semi-combined current signal is smaller than the pre-charge current signal.

5. The shift control method according to claim 4, characterized in that: Outputting a first shift current signal to the engaging shift solenoid valve, and then outputting a second shift current signal to the disengaging shift solenoid valve, comprises: Obtaining the clutch driving wheel speed and the clutch driven wheel speed; When the speed difference between the clutch driving wheel speed and the clutch driven wheel speed is less than the preset speed difference, a first shift current signal is output to the engaging gear solenoid valve, and then a second shift current signal is output to the disengaging gear solenoid valve.

6. The shift control method according to claim 1, characterized in that: The first shift signal includes a first increasing current signal and a second increasing current signal; the second shift signal includes a second decreasing current signal and a current maintaining signal; the current increasing rate corresponding to the first increasing current signal is smaller than the current increasing rate of the second increasing current signal; the current decreasing rate of the second decreasing current signal is smaller than the current decreasing rate of the first decreasing current signal; Outputting a first shift current signal to the engaging shift position solenoid valve and outputting a second shift current signal to the disengaging shift position solenoid valve comprises: outputting the first increasing current signal of a fourth preset time to the engaging shift solenoid valve, and outputting the second decreasing current signal of the fourth preset time to the disengaging shift solenoid valve; After the fourth preset time, the second increasing current signal is output to the engaging gear solenoid valve, and the current maintaining signal is output to the disengaging gear solenoid valve.

7. The shift control method according to claim 6, characterized in that: After outputting the second increasing current signal to the engaging shift solenoid valve and outputting the current maintaining signal to the disengaging shift solenoid valve, the method further includes: Obtaining a real-time current value of the combined gear solenoid valve; When the real-time current value is equal to the preset current value, the current value of the separation gear solenoid valve is controlled to be 0.

8. A gear shift control device, characterized in that: For executing the shift control method according to any one of claims 1 to 7, the shift control device comprises: A gear shift acquisition module, configured to output a pre-excitation current signal of a first preset time to the engaging gear position solenoid valve and output a first decreasing current signal to the disengaging gear position solenoid valve when acquiring a gear shift signal; a solenoid valve control module, configured to output a pre-charge current signal of a third preset time to the engaged gear solenoid valve after the first preset time; the current value of the pre-excitation current signal is greater than the current value of the pre-charge current signal; and the third preset time is greater than the first preset time; The shift module is used to output a first shift current signal to the engaging shift solenoid valve and then output a second shift current signal to the disengaging shift solenoid valve after the third preset time to complete the shift action.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the shift control method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the shift control method according to any one of claims 1 to 7 is implemented.

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