Method, device and equipment for correcting oil pressure linear growth point and storage medium

Abstract

The present application belongs to the clutch technical field, disclose a kind of oil pressure linear growth point correction method, device, equipment and storage medium.The present application obtains the oil pressure difference integral value of whole car at current time, when the oil pressure difference integral value is greater than preset threshold, obtains the compensation value of target oil pressure linear growth point at current time, then according to the compensation value, target oil pressure linear growth point is revised.Through obtaining the oil pressure difference integral value of whole car at current time, when the oil pressure difference integral value is greater than preset threshold, it indicates that the oil pressure of target oil pressure linear growth point in clutch oil pressure control is low, then according to the compensation value of target oil pressure linear growth point at current time, target oil pressure linear growth point is revised, compared with the linear growth point is handled by open loop control, the above-mentioned way of the present application can accurately revise linear growth point in clutch oil pressure control, further ensure the control characteristic robustness of clutch oil pressure control process.

Description

TECHNICAL FIELD

[0001] The present application relates to the clutch technical field, especially to a method, device and equipment for correcting an oil pressure linear growth point and a storage medium. BACKGROUND

[0002] At present, the mainstream double clutch transmission in the market controls torque by using oil pressure, but the corresponding relationship between clutch torque and oil pressure is quite different in the low torque section and the high torque section, and the control methods are also different, so it is important to find this critical point for the control of the clutch. However, the mainstream technology has few treatments for the linear growth point, and mostly uses open-loop control, which has limited precision and affects the control precision and vehicle performance. Therefore, how to accurately correct the linear growth point in the clutch oil pressure control has become a problem to be solved.

[0003] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The main purpose of the present application is to provide a method, device and equipment for correcting an oil pressure linear growth point and a storage medium, which aims to solve the technical problem of how to accurately correct the linear growth point in the clutch oil pressure control.

[0005] To achieve the above purpose, the present application provides a method for correcting an oil pressure linear growth point, which comprises the following steps:

[0006] Obtain the oil pressure difference integral value of the vehicle at the current time;

[0007] When the oil pressure difference integral value is greater than the preset threshold, obtain the compensation value of the target oil pressure linear growth point at the current time;

[0008] According to the compensation value, the target oil pressure linear growth point is corrected.

[0009] Optionally, the step of obtaining the oil pressure difference integral value of the vehicle at the current time comprises:

[0010] Obtain the initial target oil pressure and the initial actual oil pressure of the vehicle at the current time;

[0011] Determine the initial oil pressure difference according to the initial target oil pressure and the initial actual oil pressure;

[0012] Determine the oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference.

[0013] Optionally, the step of determining the oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference specifically comprises:

[0014] obtaining an initial monotonicity of the initial oil pressure difference;

[0015] when the rising gradient of the initial target oil pressure is greater than a preset gradient and the initial monotonicity is monotonically increasing, activating the integral calculation and taking the current time as an integral start time;

[0016] after the integral calculation is activated, obtaining a current target oil pressure and a current actual oil pressure;

[0017] determining an oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure.

[0018] Optionally, the step of determining the oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure specifically comprises:

[0019] determining a current oil pressure difference according to the current target oil pressure and the current actual oil pressure;

[0020] obtaining a current monotonicity of the current oil pressure difference;

[0021] when the current target oil pressure reaches an upper limit value of oil pressure or the current monotonicity is not monotonically increasing, exiting the integral calculation and taking the current time as an integral end time;

[0022] determining an oil pressure difference integral value according to the integral start time, the integral end time, the current target oil pressure and a current termination actual oil pressure.

[0023] Optionally, before the step of obtaining the oil pressure difference integral value of the whole vehicle at the current time, the method further comprises:

[0024] obtaining whole vehicle state information;

[0025] when the whole vehicle state information meets a preset adaptive condition, activating a linear growth point adaptive logic and obtaining the oil pressure difference integral value of the whole vehicle at the current time.

[0026] Optionally, the step of obtaining the compensation value of the target oil pressure linear growth point at the current time when the oil pressure difference integral value is greater than a preset threshold value specifically comprises:

[0027] when the oil pressure difference integral value is greater than the preset threshold value, obtaining a current count value;

[0028] obtaining an activation number of the linear growth point adaptive logic;

[0029] When the number of activations reaches a preset number, a compensation value of the target oil pressure linear growth point at the current time is determined according to the current count value.

[0030] Optionally, the step of correcting the target oil pressure linear growth point according to the compensation value specifically comprises:

[0031] An original oil pressure value of the target oil pressure linear growth point is obtained.

[0032] A correction value corresponding to the target oil pressure linear growth point is determined according to the original oil pressure value and the compensation value.

[0033] The target oil pressure linear growth point is corrected according to the correction value.

[0034] In addition, to achieve the above object, the present application also provides an oil pressure linear growth point correction device, which comprises:

[0035] In addition, to achieve the above object, the present application also provides an oil pressure linear growth point correction device, which comprises a memory, a processor and an oil pressure linear growth point correction program stored in the memory and executable on the processor, and the oil pressure linear growth point correction program is configured to implement the steps of the oil pressure linear growth point correction method as described above.

[0036] In addition, to achieve the above object, the present application also provides a storage medium having an oil pressure linear growth point correction program stored thereon, and the oil pressure linear growth point correction program implements the steps of the oil pressure linear growth point correction method as described above when executed by a processor.

[0037] The present application obtains the oil pressure difference integral value of the whole vehicle at the current time, obtains the compensation value of the target oil pressure linear growth point at the current time when the oil pressure difference integral value is greater than a preset threshold value, and then corrects the target oil pressure linear growth point according to the compensation value. The present application obtains the oil pressure difference integral value of the whole vehicle at the current time, and when the oil pressure difference integral value is greater than a preset threshold value, it indicates that the target oil pressure linear growth point in the clutch oil pressure control is low in oil pressure, and then the target oil pressure linear growth point is corrected according to the compensation value of the target oil pressure linear growth point at the current time. Compared with the existing open-loop control for processing the linear growth point, the above-mentioned method of the present application can accurately correct the linear growth point in the clutch oil pressure control, and further ensure the control characteristic robustness of the whole clutch oil pressure control process. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a structural schematic diagram of the oil pressure linear growth point correction device of the hardware running environment involved in the embodiment scheme of the present application.

[0039] Figure 2 A flowchart of a first embodiment of the oil pressure linear growth point correction method of the present application;

[0040] Figure 3 A flowchart of a second embodiment of the oil pressure linear growth point correction method of the present application;

[0041] Figure 4 A flowchart of a third embodiment of the oil pressure linear growth point correction method of the present application;

[0042] Figure 5 A structural block diagram of a first embodiment of the oil pressure linear growth point correction device of the present application.

[0043] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0044] It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

[0045] Referring to Figure 1 , Figure 1 A structural diagram of the oil pressure linear growth point correction device of the hardware running environment involved in the embodiment scheme of the present application.

[0046] As Figure 1 shown, the oil pressure linear growth point correction device can include a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 can include a display, an input unit such as a keyboard, and can also include a standard wired interface, a wireless interface. The network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a wireless fidelity (Wi-Fi) interface). The memory 1005 can be a high-speed random access memory (RAM), and can also be a stable non-volatile memory (NVM), such as a disk memory. The memory 1005 can also be a storage device independent of the aforementioned processor 1001.

[0047] Those skilled in the art can understand that Figure 1The structure shown in the figure does not constitute a limitation on the oil pressure linear growth point correction device, and can include more or fewer components than shown, or combine certain components, or different component arrangements.

[0048] As shown in Figure 1 The memory 1005 as a storage medium can include an operating system, a network communication module, a user interface module, and an oil pressure linear growth point correction program.

[0049] In the oil pressure linear growth point correction device shown in Figure 1 The network interface 1004 is mainly used for data communication with a network server, and the user interface 1003 is mainly used for data interaction with a user. The processor 1001 and the memory 1005 in the oil pressure linear growth point correction device of the present application can be provided in the oil pressure linear growth point correction device, and the oil pressure linear growth point correction device calls the oil pressure linear growth point correction program stored in the memory 1005 through the processor 1001, and executes the oil pressure linear growth point correction method provided by the embodiments of the present application.

[0050] Based on the above oil pressure linear growth point correction device, the embodiments of the present application provide an oil pressure linear growth point correction method, which refers to Figure 2 , Figure 2 The flowchart of the first embodiment of the oil pressure linear growth point correction method of the present application.

[0051] In this embodiment, the oil pressure linear growth point correction method comprises the following steps:

[0052] Step S10: obtaining an oil pressure difference integral value of the whole vehicle at the current time;

[0053] It should be noted that the execution subject of the present embodiment can be a computing service device with data processing and network communication functions, such as a microprocessor, a central processing unit, or an electronic device or an oil pressure linear growth point correction device capable of realizing the above functions. The oil pressure linear growth point correction device is taken as an example to describe the present embodiment and the following embodiments.

[0054] It should be understood that the oil pressure difference integral value refers to the integral value formed by the oil pressure difference between the actual oil pressure and the target oil pressure at the current time during the slow engagement of the clutch.

[0055] Step S20: obtaining a compensation value of the target oil pressure linear growth point at the current time when the oil pressure difference integral value is greater than a preset threshold value;

[0056] It should be noted that the preset threshold value is a value set in advance, and the specific value can be set according to the actual situation, and the present embodiment does not make specific limitation on this.

[0057] It can be understood that, in the clutch oil pressure control process, a relationship curve between the clutch torque and the oil pressure is formed, and a target oil pressure linear growth point exists on the curve. The target oil pressure linear growth point can be determined according to the change of the curve, for example, when the slope of the curve changes suddenly, the point of the sudden change can be taken as the target oil pressure linear growth point.

[0058] In a specific implementation, when the oil pressure difference integral value is less than or equal to a preset threshold, it indicates that the target oil pressure linear growth point is normal. When the oil pressure difference integral value is greater than the preset threshold, it indicates that the target oil pressure linear growth point is abnormal, and the oil pressure value corresponding to the target oil pressure linear growth point is low. At this time, a compensation value of the target oil pressure linear growth point at the current time can be obtained to compensate the original oil pressure value.

[0059] Step S30: correcting the target oil pressure linear growth point according to the compensation value.

[0060] It can be understood that the target oil pressure linear growth point can be corrected according to the compensation value. Specifically, the target oil pressure corresponding to the target oil pressure linear growth point can be determined according to the compensation value, and then the oil pressure corresponding to the target oil pressure linear growth point is adjusted to the target oil pressure, so as to correct the target oil pressure linear growth point.

[0061] In the embodiment, the oil pressure difference integral value of the whole vehicle at the current time is obtained. When the oil pressure difference integral value is greater than the preset threshold, the compensation value of the target oil pressure linear growth point at the current time is obtained, and then the target oil pressure linear growth point is corrected according to the compensation value. Compared with the existing open-loop control for processing the linear growth point, the above-mentioned manner of the embodiment can accurately correct the linear growth point in the clutch oil pressure control, and further ensure the control characteristic robustness of the whole clutch oil pressure control process.

[0062] Reference Figure 3 , Figure 3 FIG. 2 is a flowchart of a second embodiment of the oil pressure linear growth point correction method of the present application.

[0063] Based on the above-mentioned first embodiment, in the present embodiment, the step S10 comprises:

[0064] Step S101: obtaining an initial target oil pressure and an initial actual oil pressure of the whole vehicle at the current time;

[0065] It should be noted that the initial target oil pressure refers to the target oil pressure set before the integral calculation is activated, i.e., the oil pressure that needs to be reached by the target oil pressure linear growth point, and the specific value can be set according to the actual situation, which is not specifically limited in the embodiment.

[0066] It should be understood that the initial actual oil pressure refers to the oil pressure of the target oil pressure linear growth point at the current time.

[0067] Step S102: determining an initial oil pressure difference according to the initial target oil pressure and the initial actual oil pressure;

[0068] It can be understood that the initial oil pressure difference can be determined according to the initial target oil pressure and the initial actual oil pressure, and the initial oil pressure difference can be the difference between the initial target oil pressure and the initial actual oil pressure.

[0069] Step S103: determining an oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure, and the initial oil pressure difference.

[0070] It should be understood that the oil pressure difference integral value can be determined according to the initial target oil pressure, the initial actual oil pressure, and the initial oil pressure difference.

[0071] Further, in order to accurately determine the oil pressure difference integral value, in the embodiment, the step S103 comprises: obtaining an initial monotonicity of the initial oil pressure difference; when the rising gradient of the initial target oil pressure is greater than a preset gradient and the initial monotonicity is monotonically increasing, activating the integral calculation and taking the current time as the integral start time; after activating the integral calculation, obtaining a current target oil pressure and a current actual oil pressure; determining an oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure.

[0072] It should be noted that the initial monotonicity refers to the change of the initial oil pressure difference, which can be non-monotonic, monotonically increasing, monotonically decreasing, etc. The initial oil pressure difference can be preprocessed in the embodiment, and the preprocessing can include filtering, cleaning, etc. The abnormal initial oil pressure difference can be deleted, and then the initial monotonicity is determined according to all the initial oil pressure differences.

[0073] It can be understood that the initial target oil pressure set in the embodiment can increase with the change of time, and there is a rising gradient in the increasing process. The preset gradient is a gradient set in advance, and the specific value is not specifically limited in the embodiment. When the rising gradient of the initial target oil pressure is greater than the preset gradient and the initial monotonicity is monotonically increasing, the integral calculation is activated, that is, the oil pressure difference integral value is started to be calculated, and the current time is taken as the integral start time.

[0074] It should be understood that after the integral calculation is activated, the current target oil pressure and the current actual oil pressure are obtained, that is, the current target oil pressure and the current actual oil pressure at the current time after the integral calculation is activated are obtained, since the target oil pressure and the actual oil pressure are always changing, and then the oil pressure difference integral value can be determined according to the current target oil pressure and the current actual oil pressure.

[0075] Further, in order to accurately determine the oil pressure difference integral value, in the embodiment, the step of determining the oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure specifically comprises: determining a current oil pressure difference according to the current target oil pressure and the current actual oil pressure; obtaining a current monotonicity of the current oil pressure difference; when the current target oil pressure reaches an oil pressure upper limit value or the current monotonicity is not monotonically increasing, exiting the integral calculation and taking the current time as an integral end time; determining the oil pressure difference integral value according to the integral start time, the integral end time, the current target oil pressure and the current actual oil pressure.

[0076] It can be understood that the current oil pressure difference refers to the difference between the current target oil pressure and the current actual oil pressure, and then the current monotonicity of the current oil pressure difference is obtained.

[0077] It should be understood that the oil pressure upper limit value is a pre-set maximum oil pressure value, and the specific value can be set according to the actual situation, and when the current target oil pressure reaches the oil pressure upper limit value or the current monotonicity is not monotonically increasing, that is, monotonically decreasing or without monotonicity, the integral calculation is exited, that is, the calculation of the oil pressure difference integral value is terminated, and the current time is taken as the integral end time.

[0078] In a specific implementation, the current target oil pressure and the current actual oil pressure are obtained, and the current time is after the integral calculation is activated and before the integral calculation is exited. Then the oil pressure difference integral value is determined according to the integral start time, the integral end time, the current target oil pressure and the current actual oil pressure by the following formula, and the specific formula is:

[0079]

[0080] In the formula, P i represents the oil pressure difference integral value, t1 represents the integral start time, t2 represents the integral end time, P target represents the current target oil pressure, P actual represents the current actual oil pressure.

[0081] The embodiment obtains the initial target oil pressure and the initial actual oil pressure of the whole vehicle at the current time, then determines the initial oil pressure difference according to the initial target oil pressure and the initial actual oil pressure, and determines the oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference. The embodiment can determine the initial oil pressure difference at the current time according to the initial target oil pressure and the initial actual oil pressure, and can obtain an accurate oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference, so as to further determine whether the oil pressure difference integral value is greater than the preset threshold value.

[0082] Reference Figure 4 , Figure 4 The flowchart of the third embodiment of the oil pressure linear growth point correction method is shown.

[0083] Based on the above embodiments, in the embodiment, the step S20 comprises:

[0084] Step S201: When the oil pressure difference integral value is greater than the preset threshold value, obtaining a current count value.

[0085] It can be understood that the target oil pressure linear growth point will be corrected all the time, so multiple oil pressure difference integral values will be obtained. When the oil pressure difference integral value is greater than the preset threshold value, the count value will be increased by 1, and when the oil pressure difference integral value is less than or equal to the preset threshold value, the count value will be decreased by 1. After a series of count value calculations, the current count value is obtained.

[0086] Further, in order to determine whether to enter the linear growth point adaptive logic, in the embodiment, before the step S10, the method further comprises: obtaining whole vehicle state information; and when the whole vehicle state information meets a preset adaptive condition, activating the linear growth point adaptive logic and obtaining the oil pressure difference integral value of the whole vehicle at the current time.

[0087] It should be noted that the whole vehicle state information refers to parameter information of the whole vehicle in the working process, for example, clutch surface temperature, transmission oil temperature, etc., and can also include other information, which is not limited in the embodiment.

[0088] It should be understood that the preset adaptive condition in the embodiment is a preset adaptive condition of the linear growth point, which can be set according to actual conditions. The embodiment can be set as: (1) in the condition of stepping on the accelerator and upshifting, the gear with a higher use frequency is selected as far as possible; (2) in the last stage of pre-charging, the actual error between the actual oil pressure and the target oil pressure is within a certain range; (3) the clutch surface temperature and the transmission oil temperature are within a preset temperature, which can include a preset clutch surface temperature and a preset transmission oil temperature, and the specific temperature value is not limited in the embodiment; (4) the whole vehicle and the transmission are not reported to be faulty; and (5) whether the target oil pressure rising gradient meets the requirements.

[0089] In a specific implementation, after the linear growth point adaptive logic is activated, i.e., after the correction of the linear growth point is started, the oil pressure difference integral value of the whole vehicle at the current time is obtained.

[0090] Step S202: Obtain the activation number of the linear growth point adaptive logic;

[0091] It can be understood that the activation number refers to the number of times that the linear growth point adaptive logic is activated, i.e., the number of times that the whole vehicle state information meets the preset adaptive condition.

[0092] Step S203: When the activation number reaches a preset number, determine the compensation value of the target oil pressure linear growth point at the current time according to the current count value.

[0093] It should be noted that the preset number is a number set in advance, and the specific value can be set according to actual conditions, which is not limited in the embodiment.

[0094] It can be understood that when the activation number reaches the preset number, the compensation value of the target oil pressure linear growth point at the current time can be determined according to the current count value by the following formula: offset = last period offset + A*(count1 / N), wherein offset represents the compensation value, last period offset refers to the compensation value obtained when the linear growth point adaptive logic is activated last time, A represents a compensation step, count1 represents the current count value, the calculation method of count1 is: when the oil pressure difference integral value is less than or equal to a threshold value, count1 = last period count1-1; the minimum is 0; when the oil pressure difference integral value is greater than the threshold value, count1 = last period count1+1, and the threshold value can be set according to actual conditions; N represents the preset number. The compensation step can be obtained based on the oil temperature and the integral value by table lookup, i.e., the compensation step is looked up from the preset mapping relationship according to the oil temperature and the oil pressure difference integral value.

[0095] In a specific implementation, the compensation value when the linear growth point adaptive logic is activated for the first time can be set to 0, therefore, the compensation value when the linear growth point adaptive logic is activated for the second time is A1*(count1 / N1), the compensation value when the linear growth point adaptive logic is activated for the third time is A1*(count1 / N1)+A2*(count1 / N2), and so on.

[0096] Further, in order to accurately correct the target oil pressure linear growth point, in the embodiment, the step S30 comprises: obtaining an original oil pressure value of the target oil pressure linear growth point; determining a correction value corresponding to the target oil pressure linear growth point according to the original oil pressure value and the compensation value; and correcting the target oil pressure linear growth point according to the correction value.

[0097] It should be noted that the original oil pressure value refers to the oil pressure value of the target oil pressure linear growth point when the linear growth point adaptive logic is activated for the first time.

[0098] It can be understood that the embodiment can determine the correction value corresponding to the target oil pressure linear growth point according to the original oil pressure value and the compensation value by the following formula: P=P_original+offset, wherein P represents the correction value, P_original represents the original oil pressure value, and offset represents the compensation value.

[0099] In a specific implementation, after the correction value corresponding to the target oil pressure linear growth point is obtained, the correction value can replace the original oil pressure value of the target oil pressure linear growth point.

[0100] In the embodiment, when the oil pressure difference integral value is greater than the preset threshold value, the current count value is obtained, and then the activation number of the linear growth point adaptive logic is obtained. When the activation number reaches the preset number, the compensation value of the target oil pressure linear growth point at the current time is determined according to the current count value. In the embodiment, the compensation value of the target oil pressure linear growth point at the current time is determined according to the current count value when the activation number reaches the preset number, which can appropriately reduce the correction number of the target oil pressure linear growth point, accurately correct the linear growth point in the clutch oil pressure control, and further ensure the control characteristic robustness of the entire clutch oil pressure control process.

[0101] Reference Figure 5 , Figure 5 is a structure block diagram of the first embodiment of the oil pressure linear growth point correction device of the present application.

[0102] As Figure 5 shown, the oil pressure linear growth point correction device provided by the embodiment of the present application comprises:

[0103] An integral value obtaining module 10 is configured to obtain an oil pressure difference integral value of a whole vehicle at a current time.

[0104] A compensation value determining module 20 is configured to obtain a compensation value of a target oil pressure linear growth point at the current time when the oil pressure difference integral value is greater than a preset threshold value.

[0105] A linear point correction module 30 is configured to correct the target oil pressure linear growth point according to the compensation value.

[0106] The embodiment obtains the oil pressure difference integral value of the whole vehicle at the current time, obtains the compensation value of the target oil pressure linear growth point at the current time when the oil pressure difference integral value is greater than the preset threshold, and then corrects the target oil pressure linear growth point according to the compensation value. The embodiment obtains the oil pressure difference integral value of the whole vehicle at the current time, and when the oil pressure difference integral value is greater than the preset threshold, it indicates that the target oil pressure linear growth point is low in the clutch oil pressure control. Then, the target oil pressure linear growth point is corrected according to the compensation value of the target oil pressure linear growth point at the current time. Compared with the existing open-loop control for processing the linear growth point, the above-mentioned method of the embodiment can accurately correct the linear growth point in the clutch oil pressure control, and further ensure the control characteristic robustness of the whole clutch oil pressure control process.

[0107] It should be noted that the above-described workflow is only illustrative and does not limit the protection scope of the present application. In actual application, a person skilled in the art can select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited here.

[0108] In addition, technical details not described in detail in the embodiment can be referred to the oil pressure linear growth point correction method provided by any embodiment of the present application, which will not be described here.

[0109] Based on the first embodiment of the oil pressure linear growth point correction device of the present application, the second embodiment of the oil pressure linear growth point correction device of the present application is proposed.

[0110] In the embodiment, the integral value acquisition module 10 is also used to obtain the initial target oil pressure and the initial actual oil pressure of the whole vehicle at the current time, determine the initial oil pressure difference according to the initial target oil pressure and the initial actual oil pressure, and determine the oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference.

[0111] Further, the integral value acquisition module 10 is also used to obtain the initial monotonicity of the initial oil pressure difference, activate the integral calculation when the rising gradient of the initial target oil pressure is greater than the preset gradient and the initial monotonicity is monotonically increasing, and take the current time as the integral start time. After activating the integral calculation, the current target oil pressure and the current actual oil pressure are obtained, and the oil pressure difference integral value is determined according to the current target oil pressure and the current actual oil pressure.

[0112] Further, the integral value acquisition module 10 is further configured to determine a current oil pressure difference according to the current target oil pressure and the current actual oil pressure; acquire a current monotonicity of the current oil pressure difference; when the current target oil pressure reaches an upper limit value of oil pressure or the current monotonicity is not monotonically increasing, exit integral calculation and take a current time as an integral end time; and determine an oil pressure difference integral value according to the integral start time, the integral end time, the current target oil pressure and the current actual oil pressure.

[0113] Further, the compensation value determination module 20 is further configured to acquire vehicle state information; and when the vehicle state information meets a preset adaptive condition, activate linear growth point adaptive logic and acquire an oil pressure difference integral value of the vehicle at a current time.

[0114] Further, the compensation value determination module 20 is further configured to acquire a current count value when the oil pressure difference integral value is greater than a preset threshold; acquire an activation number of the linear growth point adaptive logic; and when the activation number reaches a preset number, determine a compensation value of the target oil pressure linear growth point at the current time according to the current count value.

[0115] Further, the linear point correction module 30 is further configured to acquire an original oil pressure value of the target oil pressure linear growth point; determine a correction value corresponding to the target oil pressure linear growth point according to the original oil pressure value and the compensation value; and correct the target oil pressure linear growth point according to the correction value.

[0116] Other embodiments or specific implementations of the oil pressure linear growth point correction device can refer to the above-mentioned method embodiments, which will not be described here.

[0117] In addition, the embodiments of the present application also propose a storage medium, and the storage medium stores an oil pressure linear growth point correction program. When the oil pressure linear growth point correction program is executed by a processor, the steps of the oil pressure linear growth point correction method described above are implemented.

[0118] It should be noted that in this paper, the term "including", "containing" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or system. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or system including the element.

[0119] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0120] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and the necessary general hardware platform, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory / random access memory, a magnetic disk, an optical disk), and includes a plurality of instructions for making a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) execute the methods described in various embodiments of the present application.

[0121] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent flow transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied to other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method of correcting an oil pressure linear growth point, characterized by, The oil pressure linear growth point correction method comprises the following steps: acquiring an oil pressure difference integral value of the whole vehicle at a current time; when the oil pressure difference integral value is greater than a preset threshold, acquiring a compensation value of the target oil pressure linear growth point at the current time; correcting the target oil pressure linear growth point according to the compensation value; before the step of acquiring the oil pressure difference integral value of the whole vehicle at the current time, the method further comprises: acquiring whole vehicle state information; when the whole vehicle state information meets a preset adaptive condition, activating linear growth point adaptive logic and acquiring the oil pressure difference integral value of the whole vehicle at the current time; the step of acquiring the compensation value of the target oil pressure linear growth point at the current time when the oil pressure difference integral value is greater than the preset threshold, specifically comprises: when the oil pressure difference integral value is greater than the preset threshold, acquiring a current count value; acquiring the activation times of the linear growth point adaptive logic; when the activation times reach a preset number of times, determining the compensation value of the target oil pressure linear growth point at the current time according to the current count value through the following formula: offset = last period offset + A*(count1 / N), wherein offset represents the compensation value, last period offset refers to the compensation value obtained when the linear growth point adaptive logic is activated last time, A represents a compensation step, count1 represents the current count value, the calculation method of count1 is: when the oil pressure difference integral value is less than or equal to the threshold, count1 = last period count1-1, and the minimum is 0; when the oil pressure difference integral value is greater than the threshold, count1 = last period count1+1; N represents the preset number of times, and the compensation step is looked up from a preset mapping relationship according to the oil temperature and the oil pressure difference integral value.

2. The method of claim 1, wherein the oil pressure linear growth point is corrected by, the step of acquiring the oil pressure difference integral value of the whole vehicle at the current time, specifically comprises: acquiring an initial target oil pressure and an initial actual oil pressure of the whole vehicle at the current time; determining an initial oil pressure difference according to the initial target oil pressure and the initial actual oil pressure; determining the oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference.

3. The method of claim 2, wherein the oil pressure linear growth point is corrected by, the step of determining the oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference, specifically comprises: acquiring an initial monotonicity of the initial oil pressure difference; when the rising gradient of the initial target oil pressure is greater than a preset gradient and the initial monotonicity is monotonically increasing, activating integral calculation and taking the current time as an integral start time; after activating the integral calculation, acquiring a current target oil pressure and a current actual oil pressure; determining the oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure.

4. The method of correcting an oil pressure linear growth point according to claim 3, characterized by, the step of determining the oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure, specifically comprises: determining a current oil pressure difference according to the current target oil pressure and the current actual oil pressure; acquiring a current monotonicity of the current oil pressure difference; when the current target oil pressure reaches an oil pressure upper limit value or the current monotonicity is not monotonically increasing, exiting the integral calculation and taking the current time as an integral end time; The oil pressure difference integral value is determined according to the integral start time, the integral end time, the current target oil pressure and the current actual oil pressure.

5. The method of claim 1, wherein the oil pressure linear growth point is corrected by, The step of correcting the target oil pressure linear increase point according to the compensation value specifically comprises: obtaining an original oil pressure value of the target oil pressure linear increase point; determining a correction value corresponding to the target oil pressure linear increase point according to the original oil pressure value and the compensation value; correcting the target oil pressure linear increase point according to the correction value.

6. An oil pressure linear growth point correction device characterized by comprising: The correction device of the oil pressure linear increase point comprises: an integral value acquisition module configured to acquire an oil pressure difference integral value of the whole vehicle at the current time; a compensation value determination module configured to acquire a compensation value of the target oil pressure linear increase point at the current time when the oil pressure difference integral value is greater than a preset threshold value; a linear point correction module configured to correct the target oil pressure linear increase point according to the compensation value; The compensation value determination module is further configured to acquire whole vehicle state information; when the whole vehicle state information meets a preset adaptive condition, activate the linear increase point adaptive logic, and acquire an oil pressure difference integral value of the whole vehicle at the current time. The compensation value determination module is further configured to acquire a current count value when the oil pressure difference integral value is greater than the preset threshold value; acquire an activation number of the linear increase point adaptive logic; and when the activation number reaches a preset number, determine the compensation value of the target oil pressure linear increase point at the current time according to the current count value by the following formula: offset = last period offset + A*(count1 / N), wherein offset represents the compensation value, last period offset refers to the compensation value obtained when the linear increase point adaptive logic is activated last time, A represents a compensation step, count1 represents the current count value, the calculation method of count1 is: when the oil pressure difference integral value is less than or equal to the threshold value, count1 = last period count1-1, and the minimum is 0; when the oil pressure difference integral value is greater than the threshold value, count1 = last period count1+1; N represents the preset number, and the compensation step is looked up from a preset mapping relationship according to the oil temperature and the oil pressure difference integral value.

7. An oil pressure linear growth point correction device characterized by comprising: The device comprises a memory, a processor and a correction program of an oil pressure linear increase point stored on the memory and executable on the processor, and the correction program of the oil pressure linear increase point is configured to implement the steps of the correction method of the oil pressure linear increase point according to any one of claims 1 to 5.

8. A storage medium, characterized by The storage medium stores a correction program of an oil pressure linear increase point, and the correction program of the oil pressure linear increase point implements the steps of the correction method of the oil pressure linear increase point according to any one of claims 1 to 5 when executed by a processor.

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