Oil-filled pressure regulation method, electronic device and computer-readable storage medium

Abstract

The application provides an oil filling pressure adjusting method, an electronic device and a computer readable storage medium. The method comprises the following steps: obtaining a current oil filling pressure value, and filling oil in a clutch according to the current oil filling pressure value; wherein the current oil filling pressure value is obtained when it is detected that the automobile clutch starts to fill oil, and the current oil filling pressure value is determined based on a current oil filling temperature value of the clutch; obtaining an oil filling time when it is determined that the oil filling is completed; wherein the oil filling time represents a time from when the automobile clutch starts to fill oil to when the oil filling is completed; determining whether the oil filling time is within a preset oil filling time interval range; if it is determined that the oil filling time is not within the preset oil filling time interval range, adjusting the current oil filling pressure value according to the oil filling time and the preset oil filling time interval, obtaining an adjusted oil filling pressure value, and using the adjusted oil filling pressure value for next oil filling of the clutch.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a filling pressure regulation method, an electronic device and a computer readable storage medium. BACKGROUND

[0002] In a hybrid transmission, the controller can control the clutch to be engaged or disengaged to transmit or stop the input torque of the engine. The filling time in the filling stage greatly affects the smoothness of the entire engagement process, and it is important to select a suitable target filling pressure.

[0003] However, the actual required filling pressure of the clutch currently generally uses a single filling pressure value, so that the clutch is prone to overfilling or underfilling during the filling process, which can cause the vehicle to shake or lack power. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a filling pressure regulation method, an electronic device and a computer readable storage medium, to solve the problem that the filling pressure of the clutch of the vehicle currently uses a single filling pressure value, which can cause overfilling or underfilling, and further cause the vehicle to shake or lack power.

[0005] In a first aspect, the present application provides a filling pressure regulation method, which comprises: obtaining a current filling pressure value and filling the clutch according to the current filling pressure value; wherein the current filling pressure value is obtained when it is detected that the clutch of the vehicle starts to fill, and the current filling pressure value is determined based on the current filling temperature value of the clutch; obtaining a filling time when it is determined that the filling is completed; wherein the filling time represents the time from when the clutch of the vehicle starts to fill to when the filling is completed; determining whether the filling time is within a preset filling time interval; if it is determined that the filling time is not within the preset filling time interval, adjusting the current filling pressure value according to the filling time and the preset filling time interval to obtain an adjusted filling pressure value, and the adjusted filling pressure value is used for the next filling of the clutch.

[0006] The filling pressure regulation method described above, the present application records the filling time of the current filling and the current filling pressure value, then compares the actual filling time with the preset filling time after the filling is completed, to determine the deviation of the filling time of the current filling from the ideal filling time, and then calculates a pressure adjustment coefficient representing the deviation of the current filling from the ideal filling state based on the time deviation, and calculates the adjusted filling pressure value by using the pressure adjustment coefficient, thereby improving the accuracy of the filling pressure at different temperatures, making the next filling closer to the ideal filling state, and thereby improving the smoothness of the power switching of the vehicle.

[0007] In an optional implementation of the first aspect, the current oil filling pressure value is adjusted according to the oil filling time and the preset oil filling time interval to obtain an adjusted oil filling pressure value, including: determining whether the oil filling time is greater than a maximum value of the preset oil filling time interval; if it is determined that the oil filling time is greater than the maximum value of the preset oil filling time interval, calculating a difference value between the oil filling time and the maximum value of the preset oil filling time interval to obtain a first time difference value; calculating a first pressure adjustment coefficient corresponding to the current oil filling pressure value according to the first time difference value; and calculating the adjusted oil filling pressure value according to the current oil filling pressure value and the corresponding first pressure adjustment coefficient.

[0008] In the above implementation, in a case where the oil filling time is greater than a maximum value of the preset oil filling time interval, i.e., the oil filling time is greater than a maximum value of the ideal oil filling time, the first pressure adjustment coefficient is calculated by calculating a difference value between the oil filling time and the maximum value of the preset oil filling time interval, so that the first pressure adjustment coefficient is a positive value, and then the oil filling pressure value is increased, the oil filling time is reduced, the oil filling time meets the preset oil filling time interval, and the adjustment accuracy of the oil filling pressure value is improved.

[0009] In an optional implementation of the first aspect, the first pressure adjustment coefficient corresponding to the current oil filling pressure value is calculated according to the first time difference value, including: calculating a quotient of the first time difference value and the oil filling time to obtain a first proportion value; obtaining a first initial adjustment coefficient corresponding to the current oil filling pressure value; and calculating the first pressure adjustment coefficient corresponding to the current oil filling pressure value according to the first proportion value and the first initial adjustment coefficient.

[0010] In an optional implementation of the first aspect, the current oil filling pressure value is adjusted according to the oil filling time and the preset oil filling time interval to obtain an adjusted oil filling pressure value, including: determining whether the oil filling time is greater than a maximum value of the preset oil filling time interval; if it is determined that the oil filling time is greater than the maximum value of the preset oil filling time interval, calculating a difference value between the oil filling time and the maximum value of the preset oil filling time interval to obtain a first time difference value; calculating a first pressure adjustment coefficient corresponding to the current oil filling pressure value according to the first time difference value; and calculating the adjusted oil filling pressure value according to the current oil filling pressure value and the corresponding first pressure adjustment coefficient.

[0011] In the above implementation, in a case where the oil filling time is less than a minimum value of the preset oil filling time interval, i.e., the oil filling time is less than a minimum value of the ideal oil filling time, the second pressure adjustment coefficient is calculated by calculating a difference value between the oil filling time and the minimum value of the preset oil filling time interval, so that the second pressure adjustment coefficient is a negative value, and then the oil filling pressure value is reduced, the oil filling time is increased, the oil filling time meets the preset oil filling time interval, and the adjustment accuracy of the oil filling pressure value is improved.

[0012] In an optional implementation of the first aspect, the obtaining of the current oil filling pressure value comprises: obtaining a current oil filling temperature value of the clutch when it is detected that the clutch starts to fill oil; determining whether the current oil filling temperature value of the clutch is greater than a first preset temperature value; if it is determined that the current oil filling temperature value of the clutch is not greater than the first preset temperature value, determining the first preset oil filling pressure value as the current oil filling pressure value; if it is determined that the current oil filling temperature value of the clutch is greater than the first preset temperature value, determining whether the current oil filling temperature value of the clutch is greater than a second preset temperature value; if it is determined that the current temperature value of the clutch is greater than the second preset temperature value, determining the second preset oil filling pressure value as the current oil filling pressure value; if it is determined that the current temperature value of the clutch is not greater than the second preset temperature value, determining the third preset oil filling pressure value as the current oil filling pressure value; wherein the second preset temperature value is greater than the first preset temperature value, and the first preset oil filling pressure value, the second preset oil filling pressure value and the third preset oil filling pressure value are different.

[0013] In the above implementation, different preset oil filling pressure values are used at different temperatures in the present solution, which avoids the problem that the same target oil filling pressure shows large differences at different temperatures, and thus improves the performance of the clutch during the oil filling stage.

[0014] In an optional implementation of the first aspect, the oil filling of the clutch according to the current oil filling pressure value comprises: obtaining a real-time pressure value of the clutch fed back by a main oil passage pressure sensor of the clutch; calculating a real-time oil pump duty cycle of the oil filling of the clutch in real time according to the real-time pressure value of the clutch and the current oil filling pressure value; and oil filling the clutch according to the real-time oil pump duty cycle of the oil filling of the clutch.

[0015] In an optional implementation of the first aspect, before the obtaining of the oil filling time, the method further comprises: obtaining a real-time pressure value of the clutch fed back by a main oil passage pressure sensor of the clutch and an oil filling duration, wherein the oil filling duration represents a time from when the clutch starts to fill oil to the present; determining whether the real-time pressure value of the clutch fed back by the main oil passage pressure sensor of the clutch is greater than a preset pressure value, and determining whether the oil filling duration is greater than a preset duration; and if it is determined that the real-time pressure value of the clutch fed back by the main oil passage pressure sensor of the clutch is greater than the preset pressure value, and the oil filling duration is greater than the preset duration, determining that the oil filling is completed.

[0016] In the above implementation, the present solution determines that the oil filling is completed only when the real-time pressure value of the clutch fed back by the main oil passage pressure sensor of the clutch is greater than the preset pressure value, and the oil filling duration is greater than the preset duration, thereby avoiding the influence of sensor errors and signal transmission disturbances, and enhancing the reliability of the determination of the completion of the oil filling.

[0017] In an optional implementation of the first aspect, after obtaining the adjusted oil filling pressure value, the method further comprises: updating a current oil filling pressure value corresponding to a current oil filling temperature value of the clutch by using the adjusted oil filling pressure value.

[0018] In a second aspect, the application provides an oil filling pressure adjusting device, which comprises an obtaining module, an oil filling module, a judging module and an adjusting module; the obtaining module is configured to obtain a current oil filling pressure value, wherein the current oil filling pressure value is obtained when it is detected that the oil filling of the clutch starts, and the current oil filling pressure value is determined based on a current oil filling temperature value of the clutch; the oil filling module is configured to fill oil in the clutch according to the current oil filling pressure value; the obtaining module is further configured to obtain an oil filling time when it is determined that the oil filling is completed, wherein the oil filling time represents the time from when the oil filling of the clutch starts to when the oil filling is completed; the judging module is configured to judge whether the oil filling time is within a preset oil filling time interval; and the adjusting module is configured to adjust the current oil filling pressure value according to the oil filling time and the preset oil filling time interval to obtain an adjusted oil filling pressure value when the judging module determines that the oil filling time is not within the preset oil filling time interval, and the adjusted oil filling pressure value is used for the next oil filling of the clutch.

[0019] The oil filling pressure adjusting device has the advantages that: the oil filling time and the current oil filling pressure value of the current oil filling are recorded, and then the actual oil filling time is compared with the preset oil filling time after the oil filling is completed, so that the deviation of the current oil filling time from the ideal oil filling time is obtained, and then the pressure adjusting coefficient that reflects the deviation of the current oil filling from the ideal oil filling is calculated based on the time deviation, and the adjusted oil filling pressure value after correction is calculated by using the pressure adjusting coefficient, thereby improving the accuracy of the oil filling pressure at different temperatures, making the next oil filling closer to the ideal oil filling state, and thereby improving the smoothness of the power switching of the vehicle.

[0020] In an optional implementation of the second aspect, the adjusting module is specifically configured to judge whether the oil filling time is greater than the maximum value of the preset oil filling time interval; if it is determined that the oil filling time is greater than the maximum value of the preset oil filling time interval, a first time difference value is obtained by calculating the difference between the oil filling time and the maximum value of the preset oil filling time interval; a first pressure adjusting coefficient corresponding to the current oil filling pressure value is calculated according to the first time difference value; and the adjusted oil filling pressure value is calculated according to the current oil filling pressure value and the corresponding first pressure adjusting coefficient.

[0021] In an optional implementation of the second aspect, the adjusting module is further specifically configured to obtain a first proportion value by calculating the quotient of the first time difference value and the oil filling time; obtain a first initial adjusting coefficient corresponding to the current oil filling pressure value; and calculate the first pressure adjusting coefficient corresponding to the current oil filling pressure value according to the first proportion value and the first initial adjusting coefficient.

[0022] In an optional implementation of the second aspect, the adjusting module is further specifically configured to determine whether the oil filling time is less than a minimum value of the preset oil filling time interval; if it is determined that the oil filling time is less than the minimum value of the preset oil filling time interval, calculate a difference between the oil filling time and the minimum value of the preset oil filling time interval to obtain a second time difference value; calculate a second pressure adjustment coefficient corresponding to the current oil filling pressure value according to the second time difference value; and calculate the adjusted oil filling pressure value according to the current oil filling pressure value and the corresponding second pressure adjustment coefficient.

[0023] In an optional implementation of the second aspect, the obtaining module is specifically configured to obtain a current oil filling temperature value of the clutch when it is detected that the clutch starts to be filled with oil; determine whether the current oil filling temperature value of the clutch is greater than a first preset temperature value; if it is determined that the current oil filling temperature value of the clutch is not greater than the first preset temperature value, determine the first preset oil filling pressure value as the current oil filling pressure value; if it is determined that the current oil filling temperature value of the clutch is greater than the first preset temperature value, determine whether the current oil filling temperature value of the clutch is greater than a second preset temperature value; if it is determined that the current temperature value of the clutch is greater than the second preset temperature value, determine the second preset oil filling pressure value as the current oil filling pressure value; if it is determined that the current temperature value of the clutch is not greater than the second preset temperature value, determine the third preset oil filling pressure value as the current oil filling pressure value; wherein the second preset temperature value is greater than the first preset temperature value, and the first preset oil filling pressure value, the second preset oil filling pressure value and the third preset oil filling pressure value are different.

[0024] In an optional implementation of the second aspect, the oil filling module is specifically configured to obtain a clutch real-time pressure value fed back by a main oil path pressure sensor of the clutch; calculate a real-time oil pump duty cycle of the clutch in real time according to the clutch real-time pressure value and the current oil filling pressure value; and fill the clutch with oil according to the real-time oil pump duty cycle of the clutch.

[0025] In an optional implementation of the second aspect, the obtaining module is further configured to obtain a clutch real-time pressure value fed back by a main oil path pressure sensor of the clutch and an oil filling duration, wherein the oil filling duration represents a time from when the clutch starts to be filled with oil to the present; the determining module is further configured to determine whether the clutch real-time pressure value fed back by the main oil path pressure sensor of the clutch is greater than a preset pressure value and whether the oil filling duration is greater than a preset duration; and the determining module is configured to determine that the oil filling is completed when it is determined that the clutch real-time pressure value fed back by the main oil path pressure sensor of the clutch is greater than the preset pressure value and that the oil filling duration is greater than the preset duration.

[0026] In an optional implementation of the second aspect, the device further comprises an updating module configured to update the current oil filling pressure value corresponding to the current oil filling temperature value of the clutch by using the adjusted oil filling pressure value.

[0027] In a third aspect, the present application provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to execute the method of any one of the optional solutions of the first aspect.

[0028] In a fourth aspect, the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to execute the method of any one of the optional solutions of the first aspect.

[0029] In a fifth aspect, the present application provides a computer program product comprising computer programs / instructions, and the computer programs / instructions are executed by a processor to execute the steps of the method of any one of the optional solutions of the first aspect.

[0030] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clear and understandable, and to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0032] Figure 1 Flowchart of the oil filling pressure regulation method provided by the embodiments of the present application;

[0033] Figure 2 Flowchart of the oil filling pressure regulation method provided by the embodiments of the present application;

[0034] Figure 3 Structure diagram of the oil filling pressure regulation device provided by the embodiments of the present application;

[0035] Figure 4 Structure diagram of the electronic device provided by the embodiments of the present application.

[0036] Icon: 300 - acquisition module; 310 - oil filling module; 320 - judgment module; 330 - regulation module; 340 - determination module; 350 - update module; 4 - electronic device; 401 - processor; 402 - memory; 403 - communication bus. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in detail below with reference to the drawings. The following examples are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, but cannot be used to limit the protection scope of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "comprising," "comprises" and "including" as used herein are synonymous with and meant to have the same meaning as the term "including"; the term "coupled" as used herein means the joining of two members together with one or more intervening members.

[0039] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0040] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. The skilled person explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0041] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0042] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0043] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0044] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0045] In the prior art, the controller can transmit or stop the input torque of the engine by controlling the engagement or disengagement of the clutch of the automobile. The oil filling time in the oil filling stage greatly affects the smoothness of the entire engagement process, and it is important to select a suitable target oil filling pressure.

[0046] However, the actual required oil filling pressure of the clutch at present generally adopts a single oil filling pressure value, so that the clutch is prone to overfilling or underfilling during the oil filling process, which is prone to cause problems such as vehicle shaking or power deficiency.

[0047] Based on the above problems, the present application designs an oil filling pressure adjusting method, an electronic device and a computer readable storage medium. First, different oil filling pressure values are adopted at different temperatures to avoid the problem that the same target oil filling pressure shows large differences at different temperatures, improve the performance of the clutch in the oil filling stage, and record the oil filling time and the current oil filling pressure value. Then, after the oil filling is completed, the actual oil filling time is compared with the preset oil filling time to obtain the deviation of the current oil filling time from the ideal oil filling time, and then the pressure adjustment coefficient of the deviation of the current oil filling from the ideal oil filling state is calculated based on the performance time deviation, and the corrected adjusted oil filling pressure value is calculated by using the pressure adjustment coefficient, thereby improving the accuracy of the oil filling pressure at different temperatures, making the next oil filling closer to the ideal oil filling state, and thereby improving the smoothness of the vehicle power switching.

[0048] Based on the above idea, the application first provides an oil filling pressure adjusting method, which can be applied to a computing device, which can be a vehicle controller, a vehicle control chip, an electric vehicle control platform, etc. As shown in Figure 1 The method can be implemented in the following way, including:

[0049] Step S100: Obtain the current oil filling pressure value.

[0050] Step S110: Fill the clutch according to the current oil filling pressure value.

[0051] Step S120: If it is determined that the oil filling is completed, obtain the oil filling time.

[0052] Step S130: Determine whether the oil filling time is within the preset oil filling time interval range. If the oil filling time is not within the preset oil filling time range, go to step S140.

[0053] Step S140: Adjust the current oil filling pressure value according to the oil filling time and the preset oil filling time interval to obtain an adjusted oil filling pressure value.

[0054] In the above embodiment, the current oil filling pressure value represents the oil filling pressure value of this time of filling the clutch. The current oil filling pressure value can be obtained when the automobile clutch is detected to start oil filling. The current oil filling pressure value is related to the current oil filling temperature value of the clutch, which can be determined according to the current oil filling temperature value of the clutch.

[0055] Specifically, as a possible implementation, the current oil filling pressure value can be obtained in the following way: first, obtain the current oil filling temperature value of the clutch when the automobile clutch is detected to start oil filling, wherein the clutch starts oil filling can be determined by the feedback of the pressure sensor arranged in the main oil circuit. When the pressure value collected by the pressure sensor in the main oil circuit reaches the preset pressure value, it is determined that the automobile clutch starts oil filling. In addition, the oil temperature value can also be obtained by collecting the oil temperature through the temperature sensor arranged in the main oil circuit.

[0056] In the case of obtaining the current oil filling temperature value of the clutch, the scheme determines whether the current oil filling temperature value of the clutch is greater than a first preset temperature value. If it is determined that the current oil filling temperature value of the clutch is not greater than the first preset temperature value, the first preset oil filling pressure value is determined as the current oil filling pressure value. If it is greater than the first preset temperature value, it is determined whether the current temperature value of the clutch is greater than a second preset temperature value. If it is determined that the current temperature value of the clutch is greater than the second preset temperature value, the second preset oil filling pressure value is determined as the current oil filling pressure value. If it is determined that the current temperature value of the clutch is not greater than the second preset temperature value, the third preset oil filling pressure value is determined as the current oil filling pressure value. The second preset temperature value is greater than the first preset temperature value, and the first preset oil filling pressure value, the second preset oil filling pressure value and the third preset oil filling pressure value are all different. Since the lower the temperature, the greater the oil pressure required, the first preset oil filling pressure value is greater than the second preset oil filling pressure value and the third preset oil filling pressure value, and the second preset oil filling pressure value is the smallest.

[0057] In addition, it should be noted that the first preset oil filling pressure value, the second preset oil filling pressure value and the third preset oil filling pressure value can all be initial values, which can be configured before the car is shipped.

[0058] As a specific example, assuming that the first preset temperature value is T1, the second preset temperature value is T2, and the oil filling pressure value is TarPress. In this case, the first preset oil filling pressure value is TarPressT1, the second preset oil filling pressure value is TarPressT2, and the third preset oil filling pressure value is TarPressT3. Assuming that the current oil filling temperature of the clutch is Tn, if the Tn is less than the first preset temperature value T1, the current oil filling pressure value is TarPressT1. If the Tn is greater than the first preset temperature value T1 but less than the second preset temperature value T2, the current oil filling pressure value is TarPressT3. If the Tn is greater than the second preset temperature value T2, the current oil filling pressure value is TarPressT2.

[0059] After the current oil filling pressure value is obtained in the above manner, the scheme can perform step S110 to fill the clutch with oil according to the current oil filling pressure value. Specifically, the scheme can obtain the real-time pressure value of the clutch fed back by the main oil circuit pressure sensor of the clutch, and then calculate the real-time oil pump duty cycle of the clutch in real time according to the real-time pressure value of the clutch and the current oil filling pressure value, and then fill the clutch with oil according to the real-time oil pump duty cycle of the clutch. The way of calculating the real-time oil pump duty cycle and filling the clutch with oil through the oil pump duty cycle can adopt any one of the existing implementation technologies, and the scheme does not limit it.

[0060] After the clutch is filled with oil, the scheme determines whether the clutch is filled with oil, and obtains the oil filling time, wherein the oil filling time represents the time from the start of the oil filling of the automobile clutch to the completion of the oil filling. Then it is judged whether the oil filling time is within the preset oil filling time interval range. If the oil filling time is not within the preset oil filling time interval range, it means that the current oil filling time deviates from the ideal oil filling time. In this case, the scheme adjusts the current oil filling pressure value according to the oil filling time and the preset oil filling time interval, and obtains an adjusted oil filling pressure value, wherein the adjusted oil filling pressure value is used for the next oil filling of the clutch.

[0061] As a specific implementation, the scheme can adjust the current oil filling pressure value in the following way: first, the scheme can determine whether the oil filling time is greater than the maximum value of the preset oil filling time interval. If it is determined that the oil filling time is greater than the maximum value of the preset oil filling time interval, it means that the oil filling time of this time exceeds the maximum oil filling time under ideal conditions. In this case, the scheme needs to increase the oil filling pressure.

[0062] Specifically, the scheme can first calculate the difference between the oil filling time and the maximum value of the preset oil filling time interval to obtain a first time difference value. Then, according to the first time difference value, a first pressure adjustment coefficient corresponding to the current oil filling pressure value is calculated, and then according to the current oil filling pressure value and the corresponding first pressure adjustment coefficient, the adjusted oil filling pressure value is calculated.

[0063] Specifically, the scheme can multiply the current oil filling pressure value by the first pressure adjustment coefficient to obtain a first adjustment value, and then calculate the sum of the current oil filling pressure value and the first adjustment value to obtain the adjusted oil filling pressure value.

[0064] Wherein, the first pressure adjustment coefficient can be obtained in the following way: first, calculate the quotient of the first time difference value and the oil filling time to obtain a first proportion value, then obtain a first initial adjustment coefficient corresponding to the current oil filling pressure value, and according to the first proportion value and the first initial adjustment coefficient, calculate the first pressure adjustment coefficient corresponding to the current oil filling pressure value. It should be noted that the first initial adjustment coefficient can be obtained in advance.

[0065] Since the oil filling time of the scheme is greater than the maximum value of the preset oil filling time interval, the first time difference value is positive, and in this case, the first pressure adjustment coefficient is also positive, and the first adjustment value is positive, so that the adjusted oil filling pressure value is greater than the current oil filling pressure value, so that the oil filling pressure is increased when the oil filling time of this time exceeds the maximum oil filling time under ideal conditions, and the oil filling time of the clutch is shortened, so that the oil filling time is within the ideal time range.

[0066] As another specific implementation, the scheme can also determine whether the oil filling time is less than the minimum value of the preset oil filling time interval. If it is determined that the oil filling time is less than the minimum value of the preset oil filling time interval, it indicates that the oil filling time of this time is less than the minimum value of the ideal oil filling time, that is, the oil filling is too fast. In this case, the scheme needs to reduce the oil filling pressure and thus increase the oil filling time to be within the ideal oil filling time interval.

[0067] Specifically, the scheme can calculate the difference between the oil filling time and the minimum value of the preset oil filling time interval to obtain a second time difference value. Then, the second pressure adjustment coefficient corresponding to the current oil filling pressure value is calculated according to the second difference value. Then, the adjusted oil filling pressure value is calculated according to the current oil filling pressure value and the corresponding second pressure adjustment coefficient.

[0068] Specifically, the scheme can multiply the current oil filling pressure value by the second pressure adjustment coefficient to obtain a second adjustment value. Then, the sum of the current oil filling pressure value and the second adjustment value is calculated to obtain the adjusted oil filling pressure value.

[0069] The second pressure adjustment coefficient can be obtained in the following manner: first, the quotient of the second time difference value and the oil filling time is calculated to obtain a second proportion value. Then, the second initial adjustment coefficient corresponding to the current oil filling pressure value is obtained. The second pressure adjustment coefficient corresponding to the current oil filling pressure value is calculated according to the second proportion value and the second initial adjustment coefficient. It should be noted that the initial adjustment coefficient can be obtained in advance.

[0070] Since the oil filling time of the scheme is less than the minimum value of the preset oil filling time interval, the second time difference value is negative. In this case, the second pressure adjustment coefficient is also negative, and thus the second adjustment value is negative. Therefore, the adjusted oil filling pressure value plus the second adjustment value is less than the current oil filling pressure value. In the case where the oil filling time of this time is less than the minimum oil filling time in the ideal case, the oil filling pressure is reduced and thus the oil filling time of the clutch is increased, so that the oil filling time is within the ideal time range.

[0071] It should be noted that the current oil filling pressure value is different under different oil filling oil temperatures as described above. In this case, the initial adjustment parameters corresponding to different oil filling oil temperatures can be different. The first initial adjustment parameters corresponding to the same oil filling oil temperature can be the same or different.

[0072] For example, as shown in FIG. 6, the initial adjustment parameters corresponding to different oil filling oil temperatures are different. Figure 2The flowchart example shows that the current oil filling temperature of the clutch is Tn. It is assumed that Tn is less than the first preset temperature value T1, and the current oil filling pressure value is TarPressT1. The first initial adjustment parameter corresponding to TarPressT1 is K1T1, and the second initial adjustment parameter is K2T1. It is assumed that the oil filling time t is greater than the maximum value tmax of the preset oil filling interval. In this case, the first time difference value is tn1=t-tmax, and the first pressure adjustment coefficient corresponding to tn1 is K1A=K1T1*(tn1 / t)*100%. The final adjusted oil filling pressure value TarPressT1 is TarPressT1+TarPressT1*K1A. t It is assumed that the oil filling time t is less than the minimum value tmin of the preset oil filling interval. In this case, the second time difference value is tn2=t-tmin, and the second pressure adjustment coefficient corresponding to tn2 is K1B=K2T1*(tn2 / t)*100%. The final adjusted oil filling pressure value TarPressT1 is TarPressT1+TarPressT1*K1B. t

[0073] It is assumed that Tn is greater than the first preset temperature value T1 but less than the second preset temperature value T2. The current oil filling pressure value is TarPressT3. The first initial adjustment parameter corresponding to TarPressT3 is K1T3, and the second initial adjustment parameter is K2T3. It is assumed that the oil filling time t is greater than the maximum value tmax of the preset oil filling interval. In this case, the first time difference value is tn1=t-tmax, and the first pressure adjustment coefficient corresponding to tn1 is K3A=K1T3*(tn1 / t)*100%. The final adjusted oil filling pressure value TarPressT3 is TarPressT3+TarPressT3*K3A. t It is assumed that the oil filling time t is less than the minimum value tmin of the preset oil filling interval. In this case, the second time difference value is tn2=t-tmin, and the second pressure adjustment coefficient corresponding to tn2 is K3B=K2T3*(tn2 / t)*100%. The final adjusted oil filling pressure value TarPressT3 is TarPressT3+TarPressT3*K3B. t

[0074] It is assumed that Tn is greater than the second preset temperature value T2. The current oil filling pressure value is TarPressT2. The first initial adjustment parameter corresponding to TarPressT2 is K1T2, and the second initial adjustment parameter is K2T2. It is assumed that the oil filling time t is greater than the maximum value tmax of the preset oil filling interval. In this case, the first time difference value is tn1=t-tmax, and the first pressure adjustment coefficient corresponding to tn1 is K2A=K1T2*(tn1 / t)*100%. The final adjusted oil filling pressure value TarPressT2 is TarPressT2+TarPressT2*K2A.​​t = TarPressT2 + TarPressT2 * K2A; assuming the oil filling time t is less than the minimum value tmin of the preset oil filling interval, in this case, the second time difference value is tn2 = t - tmin, and the corresponding second pressure adjustment coefficient is K2B = K2T2 * (tn2 / t) * 100%, and the final adjusted oil filling pressure value TarPressT2 is t = TarPressT2 + TarPressT2 * K2B.

[0075] It should be noted that the initial adjustment parameters described above under the same oil filling oil temperature condition can be the same or different, for example, K1T1 and K2T1 described above can be the same or different. In addition, since the size of the oil filling pressure under different oil filling oil temperatures is different, that is, the oil filling pressure will obviously increase as the temperature decreases, in order to improve the accuracy of the oil filling pressure adjustment, the initial adjustment parameters under different oil filling oil temperatures are different, for example, K1T1, K1T2 and K1T3 described above are different, specifically K1T1 > K1T3 > K1T2, wherein K1T1 can be much greater than K1T3, so that the present scheme has a greater increase in oil filling pressure under lower oil temperature, thereby improving the oil filling pressure adjustment rate under low temperature. The specific values of K1T1, K1T2 and K1T3 can be adaptively adjusted according to actual application scenarios.

[0076] In addition, it should be noted that if step S130 determines that the oil filling time is within the preset oil filling time interval, the current oil filling pressure value is not adjusted, that is, the next oil filling at the temperature is still performed using the current oil filling pressure value corresponding to the temperature.

[0077] The above-mentioned oil filling pressure adjustment method first uses different oil filling pressure values at different temperatures to avoid the problem that the same target oil filling pressure has a large difference at different temperatures, thereby improving the performance of the clutch oil filling stage. The present scheme records the current oil filling time and the current oil filling pressure value, and then compares the actual oil filling time with the preset oil filling time after the oil filling is completed to determine the deviation of the current oil filling time from the ideal oil filling time. Then, based on the performance time deviation, the pressure adjustment coefficient of the performance current oil filling and the ideal oil filling state deviation is calculated, and the corrected adjusted oil filling pressure value is calculated using the pressure adjustment coefficient, thereby improving the accuracy of the oil filling pressure at different temperatures, making the next oil filling closer to the ideal oil filling state, and thereby improving the smoothness of the vehicle power switching.

[0078] In an optional implementation of the embodiment, the scheme can determine whether the oil filling is completed by the following method: obtaining a clutch real-time pressure value fed back by a clutch main oil path pressure sensor and an oil filling duration, wherein the oil filling duration represents a time from when the oil filling of the clutch is started to the present time, determining whether the clutch real-time pressure value fed back by the clutch main oil path pressure sensor is greater than a preset pressure value, and determining whether the oil filling duration is greater than a preset duration; and if it is determined that the clutch real-time pressure value fed back by the clutch main oil path pressure sensor is greater than the preset pressure value and the oil filling duration is greater than the preset duration, it is determined that the oil filling is completed.

[0079] If the clutch real-time pressure value fed back by the clutch main oil path pressure sensor is not greater than the preset pressure value, it indicates that the oil filling stage is not completed, and the oil filling is continued; if the clutch real-time pressure value fed back by the clutch main oil path pressure sensor is greater than the preset pressure value, but the oil filling duration is not greater than the preset duration, in order to avoid the influence of sensor errors and signal transmission disturbances, the determination reliability is increased, and then the scheme determines that the oil filling is not completed, and the oil filling is continued.

[0080] In an optional implementation of the embodiment, when the adjusted oil filling pressure value is obtained, the current oil filling pressure value corresponding to a current oil filling temperature value of the clutch can be updated by using the adjusted oil filling pressure value, so that the adjusted oil filling pressure value obtained after the adjustment is used for oil filling in the next oil filling of the clutch.

[0081] Figure 3 The schematic structural block diagram of the oil filling pressure adjusting device provided in the application is shown, and it should be understood that the device is applied to the electronic device described above, the device is used for adjusting the oil filling pressure of the clutch of the electronic device, and the device is used for adjusting the oil filling pressure of the clutch of the electronic device Figure 1The method embodiments executed in the device correspond to the steps involved in the foregoing method, and the specific functions of the device can be referred to the description above. To avoid repetition, the detailed description is appropriately omitted here. The device includes at least one software function module stored in the form of software or firmware in the memory or solidified in the operating system (OS) of the device. Specifically, the device includes an acquisition module 300, an oil filling module 310, a judgment module 320, and an adjustment module 330. The acquisition module 300 is configured to acquire a current oil filling pressure value, wherein the current oil filling pressure value is acquired when it is detected that the automobile clutch starts to be filled with oil, and the current oil filling pressure value is determined based on a current oil filling temperature value of the clutch. The oil filling module 310 is configured to fill the clutch with oil according to the current oil filling pressure value. The acquisition module is further configured to acquire an oil filling time when it is determined that the oil filling is completed, wherein the oil filling time represents a time from when the automobile clutch starts to be filled with oil to when the oil filling is completed. The judgment module 320 is configured to judge whether the oil filling time is within a preset oil filling time interval. The adjustment module 330 is configured to, when the judgment module determines that the oil filling time is not within the preset oil filling time interval, adjust the current oil filling pressure value according to the oil filling time and the preset oil filling time interval, to obtain an adjusted oil filling pressure value, and the adjusted oil filling pressure value is used for the next oil filling of the clutch.

[0082] The oil filling pressure adjustment device designed above, the present scheme records the current oil filling time and the current oil filling pressure value, then compares the actual oil filling time with the preset oil filling time after the oil filling is completed, to know the deviation of the current oil filling time from the ideal oil filling time, and then calculates a pressure adjustment coefficient representing the deviation of the current oil filling from the ideal oil filling state based on the time deviation, calculates a corrected adjusted oil filling pressure value by using the pressure adjustment coefficient, thereby improving the accuracy of the oil filling pressure at different temperatures, making the next oil filling closer to the ideal oil filling state, and thereby improving the smoothness of the power switching of the whole vehicle.

[0083] According to some embodiments of the present application, the adjustment module 330 is specifically configured to judge whether the oil filling time is greater than a maximum value of the preset oil filling time interval; if it is determined that the oil filling time is greater than the maximum value of the preset oil filling time interval, a first time difference value is obtained by calculating the difference between the oil filling time and the maximum value of the preset oil filling time interval; a first pressure adjustment coefficient corresponding to the current oil filling pressure value is calculated according to the first time difference value; and the adjusted oil filling pressure value is calculated according to the current oil filling pressure value and the corresponding first pressure adjustment coefficient.

[0084] According to some embodiments of the present application, the adjusting module 330 is further specifically configured to calculate a quotient of the first time difference value and the oil filling time, to obtain a first proportion value; obtain a first initial adjustment coefficient corresponding to the current oil filling pressure value; and calculate a first pressure adjustment coefficient corresponding to the current oil filling pressure value according to the first proportion value and the first initial adjustment coefficient.

[0085] According to some embodiments of the present application, the adjusting module 330 is further specifically configured to determine whether the oil filling time is less than a minimum value of a preset oil filling time interval; if it is determined that the oil filling time is less than the minimum value of the preset oil filling time interval, calculate a second time difference value by calculating a difference between the oil filling time and the minimum value of the preset oil filling time interval; calculate a second pressure adjustment coefficient corresponding to the current oil filling pressure value according to the second time difference value; and calculate the adjusted oil filling pressure value according to the current oil filling pressure value and the corresponding second pressure adjustment coefficient.

[0086] According to some embodiments of the present application, the obtaining module 300 is specifically configured to obtain a current oil filling temperature value of the clutch when it is detected that the clutch starts to be filled with oil; determine whether the current oil filling temperature value of the clutch is greater than a first preset temperature value; if it is determined that the current oil filling temperature value of the clutch is not greater than the first preset temperature value, determine the first preset oil filling pressure value as the current oil filling pressure value; if it is determined that the current oil filling temperature value of the clutch is greater than the first preset temperature value, determine whether the current oil filling temperature value of the clutch is greater than a second preset temperature value; if it is determined that the current temperature value of the clutch is greater than the second preset temperature value, determine the second preset oil filling pressure value as the current oil filling pressure value; if it is determined that the current temperature value of the clutch is not greater than the second preset temperature value, determine the third preset oil filling pressure value as the current oil filling pressure value; wherein the second preset temperature value is greater than the first preset temperature value, and the first preset oil filling pressure value, the second preset oil filling pressure value and the third preset oil filling pressure value are different.

[0087] According to some embodiments of the present application, the oil filling module 310 is specifically configured to obtain a clutch real-time pressure value fed back by a main oil path pressure sensor of the clutch; calculate a real-time oil pump duty cycle of the clutch in real time according to the clutch real-time pressure value and the current oil filling pressure value; and fill the clutch with oil according to the real-time oil pump duty cycle of the clutch.

[0088] According to some embodiments of the present application, the acquisition module 300 is further configured to acquire a clutch real-time pressure value fed back by a main oil path pressure sensor of the clutch and an oil filling duration, wherein the oil filling duration represents a time from when the clutch starts to fill oil to the present time; the determination module 320 is further configured to determine whether the clutch real-time pressure value fed back by the main oil path pressure sensor of the clutch is greater than a preset pressure value and whether the oil filling duration is greater than a preset duration; and the determination module 340 is configured to determine that the oil filling is completed when the determination module determines that the clutch real-time pressure value fed back by the main oil path pressure sensor of the clutch is greater than the preset pressure value and the oil filling duration is greater than the preset duration.

[0089] According to some embodiments of the present application, the apparatus further comprises an updating module 350 configured to update a current oil filling pressure value corresponding to a current oil filling temperature value of the clutch by using the adjusted oil filling pressure value.

[0090] According to some embodiments of the present application, as shown in Figure 4 The present application provides an electronic device 4, which comprises a processor 401 and a memory 402. The processor 401 and the memory 402 are interconnected and communicate with each other through a communication bus 403 and / or other forms of connection mechanism (not shown). The memory 402 stores a computer program executable by the processor 401. When the computing device is running, the processor 401 executes the computer program to execute the method of any of the optional implementation manners, for example, steps S100 to S130: acquiring a current oil filling pressure value; filling oil for a clutch according to the current oil filling pressure value; acquiring an oil filling time when it is determined that the oil filling is completed; determining whether the oil filling time is within a preset oil filling time interval range, and if the oil filling time is not within the preset oil filling time range, adjusting the current oil filling pressure value according to the oil filling time and the preset oil filling time interval to obtain an adjusted oil filling pressure value.

[0091] The present application provides a computer readable storage medium, which stores a computer program. The computer program is executed by a processor to execute the method in any of the optional implementation manners.

[0092] The storage medium can be implemented by any type of volatile or nonvolatile storage devices 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.

[0093] The present application provides a computer program product which, when running on a computer, causes the computer to perform the method in any of the optional implementation manners.

[0094] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An oil-extended pressure regulating method characterized by, The method comprises: obtaining a current oil filling pressure value and filling oil in the clutch according to the current oil filling pressure value; wherein the current oil filling pressure value is obtained when it is detected that the automobile clutch starts to fill oil, and the current oil filling pressure value is determined based on a current oil filling temperature value of the clutch; obtaining an oil filling time when it is determined that the oil filling is completed; wherein the oil filling time represents a time from when the automobile clutch starts to fill oil to when the oil filling is completed; determining whether the oil filling time is within a preset oil filling time interval range; if it is determined that the oil filling time is not within the preset oil filling time interval range, adjusting the current oil filling pressure value according to the oil filling time and the preset oil filling time interval to obtain an adjusted oil filling pressure value, and the adjusted oil filling pressure value is used for next oil filling of the clutch; the adjustment of the current oil filling pressure value according to the oil filling time and the preset oil filling time interval to obtain the adjusted oil filling pressure value comprises: determining whether the oil filling time is greater than a maximum value of the preset oil filling time interval; if it is determined that the oil filling time is greater than the maximum value of the preset oil filling time interval, calculating a difference between the oil filling time and the maximum value of the preset oil filling time interval to obtain a first time difference value; calculating a first pressure adjustment coefficient corresponding to the current oil filling pressure value according to the first time difference value; calculating the adjusted oil filling pressure value according to the current oil filling pressure value and the corresponding first pressure adjustment coefficient; the calculation of the first pressure adjustment coefficient corresponding to the current oil filling pressure value according to the first time difference value comprises: calculating a quotient of the first time difference value and the oil filling time to obtain a first proportion value; obtaining a first initial adjustment coefficient corresponding to the current oil filling pressure value; calculating the first pressure adjustment coefficient corresponding to the current oil filling pressure value according to the first proportion value and the first initial adjustment coefficient; the adjustment of the current oil filling pressure value according to the oil filling time and the preset oil filling time interval to obtain the adjusted oil filling pressure value further comprises: determining whether the oil filling time is less than a minimum value of the preset oil filling time interval; if it is determined that the oil filling time is less than the minimum value of the preset oil filling time interval, calculating a difference between the oil filling time and the minimum value of the preset oil filling time interval to obtain a second time difference value; calculating a second pressure adjustment coefficient corresponding to the current oil filling pressure value according to the second time difference value; calculating the adjusted oil filling pressure value according to the current oil filling pressure value and the corresponding second pressure adjustment coefficient.

2. The method of claim 1, wherein, the obtaining of the current oil filling pressure value comprises: obtaining a current oil filling temperature value of the clutch when it is detected that the automobile clutch starts to fill oil; determining whether the current oil filling temperature value of the clutch is greater than a first preset temperature value; if it is determined that the current oil filling temperature value of the clutch is not greater than the first preset temperature value, determining a first preset oil filling pressure value as the current oil filling pressure value; if it is determined that the current oil filling temperature value of the clutch is greater than the first preset temperature value, determining whether the current oil filling temperature value of the clutch is greater than a second preset temperature value; If it is determined that the current temperature value of the clutch is greater than the second preset temperature value, the second preset oil filling pressure value is determined as the current oil filling pressure value; If it is determined that the current temperature value of the clutch is not greater than the second preset temperature value, the third preset oil filling pressure value is determined as the current oil filling pressure value; The second preset temperature value is greater than the first preset temperature value, and the first preset oil filling pressure value, the second preset oil filling pressure value and the third preset oil filling pressure value are different.

3. The method of claim 1, wherein, The oil filling of the clutch according to the current oil filling pressure value comprises: obtaining a real-time pressure value of the clutch fed back by a main oil path pressure sensor of the clutch; calculating a real-time oil pump duty cycle of the oil filling of the clutch in real time according to the real-time pressure value of the clutch and the current oil filling pressure value; filling the clutch with oil according to the real-time oil pump duty cycle of the oil filling of the clutch.

4. The method of claim 1, wherein, Before the obtaining of the oil filling time, the method further comprises: obtaining a real-time pressure value of the clutch fed back by a main oil path pressure sensor of the clutch and an oil filling duration, wherein the oil filling duration represents a time from the start of the oil filling of the clutch to the present; determining whether the real-time pressure value of the clutch fed back by the main oil path pressure sensor of the clutch is greater than a preset pressure value and whether the oil filling duration is greater than a preset duration; If it is determined that the real-time pressure value of the clutch fed back by the main oil path pressure sensor of the clutch is greater than the preset pressure value and the oil filling duration is greater than the preset duration, it is determined that the oil filling is completed.

5. The method of claim 1, wherein, After the obtaining of the adjusted oil filling pressure value, the method further comprises: updating the current oil filling pressure value corresponding to the current oil filling temperature value of the clutch by using the adjusted oil filling pressure value. 6.An electronic device comprising a memory and a processor, the memory storing a computer program, wherein, The processor executes the computer program to realize the method in any one of claims 1 to 5.

7. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to realize the method in any one of claims 1 to 5.

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