Control method, device and equipment for pressure of leakage compensation hydraulic torque converter and medium

Abstract

The invention relates to a control method, device and equipment for pressure of a leakage compensation hydraulic torque converter and a medium. The control method for leakage compensation of the pressure of the hydraulic torque converter comprises the steps that when it is detected that a normally-running vehicle triggers a first preset condition, the slip frequency of the hydraulic torque converter is monitored in real time; whether the slip frequency of the hydraulic torque converter meets a second preset condition or not is monitored to determine whether the gearbox hydraulic system has a leakage risk or not; if it is determined that the gearbox hydraulic system has the leakage risk, the hydraulic torque converter is controlled to conduct pressure compensation processing according to a target pressure value; and when it is detected that the clutch exits the oil charging stage, the hydraulic torque converter is controlled to conduct pressure recovery treatment according to a preset adjusting rule. According to the embodiment of the invention, stable pressure control of the hydraulic torque converter and stable power output can be ensured, and the driving comfort of the whole vehicle is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of automatic transmission vehicle control, and in particular to a method, device, equipment and medium for controlling the pressure of a leakage compensation hydraulic torque converter. Background Art

[0002] As vehicles with automatic transmissions gain increasing market share, demand for shifting quality is increasing. However, the poor consistency of some components can lead to poor shifting comfort. For example, transmission hydraulic systems from different batches can exhibit some variability in leakage during shifting. During the clutch shift and oil filling phase, significant hydraulic system leakage can cause a rapid drop in the actual pressure of the torque converter, which is in slip-friction control. This pressure then quickly recovers after the clutch oil is filled, causing shock and jerking, resulting in reduced vehicle comfort. Summary of the Invention

[0003] In order to solve the above technical problems, the present disclosure provides a method, device, equipment and medium for controlling the pressure of a leakage-compensated torque converter.

[0004] In a first aspect, the present disclosure provides a method for controlling pressure of a leakage-compensated torque converter, comprising: When it is detected that the vehicle is running normally and triggers the first preset condition, the slip of the torque converter is monitored in real time; determining whether there is a leakage risk in the transmission hydraulic system by monitoring whether the slip of the torque converter meets a second preset condition; If it is determined that there is a leakage risk in the transmission hydraulic system, controlling the torque converter to perform pressure compensation processing according to a target pressure value; When it is detected that the clutch exits the oil filling stage, the torque converter is controlled to perform pressure recovery processing according to a preset regulation rule.

[0005] In some embodiments, the first preset condition is that the torque converter is in a slipping state and the clutch enters an oil filling stage.

[0006] In some embodiments, when detecting that the vehicle is traveling normally and triggering the first preset condition, real-time monitoring of the slip of the torque converter includes: When it is detected that the first preset condition is triggered by the vehicle running normally, the difference between the rotation speed of the clutch in the oil filling stage and the rotation speed of the engine in the oil filling stage is calculated to obtain the slip of the torque converter; The slip of the torque converter is monitored in real time.

[0007] In some embodiments, determining whether there is a leakage risk in the transmission hydraulic system by monitoring whether the slip of the torque converter satisfies a second preset condition includes: If it is monitored that the slip of the torque converter is within a preset threshold range and is maintained for a preset time, it is determined that the slip of the torque converter meets the second preset condition and there is a leakage risk in the transmission hydraulic system; If it is monitored that the slip of the torque converter is not within a preset threshold range and / or is not maintained for a preset time, it is determined that the slip of the torque converter does not meet the second preset condition and there is no leakage risk in the transmission hydraulic system.

[0008] In some embodiments, if it is determined that there is a leakage risk in the transmission hydraulic system, controlling the torque converter to perform pressure compensation processing according to a target pressure value includes: If it is determined that there is a risk of leakage in the transmission hydraulic system, when the torque converter is detected again in a slipping state and the clutch enters the oil filling stage, the torque converter is controlled to increase the initial pressure value to the target pressure value at a preset rising rate, and the target pressure value is maintained during the oil filling stage of the clutch.

[0009] In some embodiments, after detecting that the clutch exits the oil filling phase, controlling the torque converter to perform pressure recovery processing according to a preset regulation rule includes: When it is detected that the clutch exits the oil filling stage, the torque converter is controlled to perform pressure recovery processing at a preset decrease rate according to a preset adjustment rule, so that the target pressure value is restored to the initial pressure value.

[0010] In some embodiments, the method further comprises: When it is detected that the slip of the torque converter is less than a preset threshold value when the clutch enters the oil filling stage next time, maintaining the target pressure value; Otherwise, the step pressure is increased and the torque converter is controlled to continue the pressure compensation process until a minimum preset threshold is met.

[0011] In a second aspect, the present disclosure provides a control device for leak compensation torque converter pressure, comprising: a first detection module, configured to monitor the slip of the torque converter in real time when detecting that a vehicle traveling normally triggers a first preset condition; a data determination module, configured to determine whether there is a leakage risk in the transmission hydraulic system by monitoring whether the slip of the torque converter satisfies a second preset condition; a first processing module, configured to control the torque converter to perform pressure compensation processing according to a target pressure value if it is determined that the transmission hydraulic system has a leakage risk; The second processing module is used to control the torque converter to perform pressure recovery processing according to a preset adjustment rule when it is detected that the clutch exits the oil filling stage.

[0012] In a third aspect, the present disclosure provides a control device for leak compensation torque converter pressure, comprising: processor; a memory for storing executable instructions; The processor is used to read executable instructions from the memory and execute the executable instructions to implement the control method of the leakage compensation torque converter pressure of the first aspect.

[0013] In a fourth aspect, the present disclosure provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor implements the leakage compensation torque converter pressure control method of the first aspect.

[0014] The technical solution provided by the embodiments of the present disclosure has the following advantages over the prior art: The disclosed embodiments of the present invention provide a method, device, apparatus, and medium for controlling the pressure of a leakage-compensating torque converter. These methods, apparatuses, and media are capable of monitoring the slip of the torque converter in real time when a normally traveling vehicle triggers a first preset condition. The method then determines whether the transmission hydraulic system is at risk of leakage by monitoring whether the torque converter slip satisfies a second preset condition. If a leakage risk is determined, the torque converter is controlled to perform pressure compensation according to a target pressure value. Finally, upon detecting that the clutch has exited the oil filling phase, the torque converter is controlled to perform pressure recovery according to preset adjustment rules. Thus, when a leakage risk is determined in the transmission hydraulic system, the torque converter is controlled to perform pressure compensation and pressure recovery, ensuring stable torque converter pressure control and smooth power output, thereby improving vehicle driving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0016] Figure 1 A flow chart of a method for controlling pressure of a leakage compensation torque converter provided by an embodiment of the present disclosure; Figure 2 A flow chart of another method for controlling pressure of a leakage-compensated torque converter provided by an embodiment of the present disclosure; Figure 3 A flow chart of another method for controlling pressure of a leakage compensation torque converter provided by an embodiment of the present disclosure; Figure 4A schematic structural diagram of a control device for leakage compensation torque converter pressure provided by an embodiment of the present disclosure; Figure 5 A schematic structural diagram of a control device for leakage compensation torque converter pressure provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0017] The following describes embodiments of the present disclosure in more detail with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0018] It should be understood that the various steps described in the method embodiments of the present disclosure may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0019] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to." The term "based on" means "based, at least in part, on." The term "one embodiment" means "at least one embodiment," the term "another embodiment" means "at least one additional embodiment," and the term "some embodiments" means "at least some embodiments." Other terms are defined in the following description.

[0020] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0021] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0022] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0023] In order to solve the above problems, the present disclosure provides a method, device, equipment and medium for controlling the pressure of a leakage compensation torque converter. Figure 1-Figure 3 The method for controlling the pressure of a leakage compensation torque converter provided by an embodiment of the present disclosure is described in detail.

[0024] Figure 1 A flow chart of a method for controlling pressure of a leakage-compensated torque converter provided by an embodiment of the present disclosure is shown.

[0025] In an embodiment of the present disclosure, the method for controlling the leakage compensation torque converter pressure may be performed by an electronic device, which may include but is not limited to a computer device, a cloud server, or a cloud server cluster.

[0026] like Figure 1 As shown, the method for controlling the leakage compensation torque converter pressure may include the following steps.

[0027] S110 : When it is detected that the normally running vehicle triggers a first preset condition, the slip of the torque converter is monitored in real time.

[0028] In an embodiment of the present disclosure, when it is detected that a normally traveling vehicle triggers a first preset condition, the electronic device may monitor the slip of the torque converter in real time.

[0029] Optionally, the first preset condition may be a pre-set condition for triggering monitoring. The first preset condition may be that the torque converter is in a slipping state and the clutch enters an oil filling phase. The slipping state may be when the speed of the torque converter's pump impeller (connected to the engine) is greater than the speed of the turbine (connected to the transmission input shaft), resulting in a speed difference. The oil filling phase may be when the hydraulic system begins supplying oil to the piston cylinder of the clutch about to engage (upshift) or disengage (downshift).

[0030] Specifically, during normal driving of an automatic transmission vehicle, when it is detected that the vehicle triggers a first preset condition, that is, when it is detected that the torque converter is in a slipping state and the clutch enters the oil filling stage, the electronic device can monitor the slip of the torque converter in real time.

[0031] S120: Determine whether there is a leakage risk in the transmission hydraulic system by monitoring whether the slip of the torque converter meets a second preset condition.

[0032] In the disclosed embodiment, the electronic device may determine whether there is a risk of leakage in the transmission hydraulic system by monitoring whether the slip of the torque converter satisfies a second preset condition.

[0033] Optionally, the second preset condition may be a pre-set condition for determining a change in slip of the torque converter.

[0034] Alternatively, the leakage risk may be an oil pressure leakage during a gear shifting process.

[0035] Specifically, after monitoring the slip of the torque converter in real time, the electronic device may monitor whether the slip of the torque converter meets a second preset condition, thereby determining whether there is a leakage risk in the transmission hydraulic system.

[0036] S130: If it is determined that there is a leakage risk in the transmission hydraulic system, control the torque converter to perform pressure compensation processing according to the target pressure value.

[0037] In an embodiment of the present disclosure, if it is determined that there is a risk of leakage in the transmission hydraulic system, the electronic device can control the torque converter to perform pressure compensation processing according to the target pressure value.

[0038] Optionally, the target pressure value may be a pre-calibrated pressure value.

[0039] Alternatively, the pressure compensation process may be a process of increasing the pressure of the torque converter.

[0040] Specifically, after determining that there is a risk of leakage in the transmission hydraulic system, the electronic device can control the torque converter to perform pressure compensation processing based on a pre-calibrated target pressure value.

[0041] S140: When it is detected that the clutch exits the oil filling stage, the torque converter is controlled to perform pressure recovery processing according to a preset adjustment rule.

[0042] In an embodiment of the present disclosure, when it is detected that the clutch exits the oil filling stage, the electronic device can control the torque converter to perform pressure recovery processing according to a preset adjustment rule.

[0043] Optionally, the preset regulation rule may be a pre-set rule for pressure regulation, such as a proportional-integral (PI) adaptive regulation, which takes the error and the error change rate as input, adjusts the proportional (P) and integral (I) parameters in real time, and dynamically optimizes the response speed and steady-state performance of the controller.

[0044] Alternatively, the pressure recovery process may be a process of restoring the pressure of the torque converter to an initial value.

[0045] Specifically, when the electronic device detects that the clutch has exited the oil filling stage, it can control the torque converter to perform pressure recovery processing according to preset adjustment rules. For example, it can control the torque converter to perform pressure recovery processing according to proportional-integral (PI) adaptive adjustment, thereby restoring the pressure of the torque converter to the initial value.

[0046] Thus, in the disclosed embodiment, when a first preset condition is detected during normal vehicle operation, the torque converter slip is monitored in real time. The transmission hydraulic system is then determined to be at risk of leakage by monitoring whether the torque converter slip satisfies a second preset condition. If a leakage risk is determined, the torque converter is controlled to perform pressure compensation according to a target pressure value. Finally, when the clutch exits the oil filling phase, the torque converter is controlled to perform pressure recovery according to a preset regulation rule. Thus, when a leakage risk is determined in the transmission hydraulic system, the torque converter is controlled to perform pressure compensation and pressure recovery, ensuring stable torque converter pressure control and smooth power output, thereby improving vehicle driving comfort.

[0047] Optionally, S110 may specifically include: when it is detected that a normally traveling vehicle triggers the first preset condition, calculating the difference between the speed of the clutch in the oil filling stage and the speed of the engine in the oil filling stage to obtain the slip of the torque converter; and monitoring the slip of the torque converter in real time.

[0048] In an embodiment of the present disclosure, when it is detected that a normally traveling vehicle triggers the first preset condition, the electronic device can calculate the difference between the speed of the clutch during the oil filling stage and the speed of the engine during the oil filling stage to obtain the slip of the torque converter.

[0049] Specifically, when it is detected that a normally traveling vehicle triggers the first preset condition, that is, when it is detected that the torque converter is in a slipping state and the clutch enters the oil filling stage, the electronic device can obtain the slip of the torque converter by calculating the difference between the speed of the clutch in the oil filling stage and the speed of the engine in the oil filling stage.

[0050] Furthermore, the electronic device can monitor the slip of the torque converter in real time.

[0051] Therefore, the slip of the torque converter can be monitored in real time when the vehicle triggers the first preset condition, so that it can be determined in time whether there is a leakage risk, thereby avoiding the risk of customer complaints caused by poor shifting quality due to the leakage risk.

[0052] Optionally, S120 may specifically include: if it is monitored that the slip of the torque converter is within a preset threshold range and is maintained for a preset time, determining that the slip of the torque converter meets the second preset condition and there is a leakage risk in the transmission hydraulic system; if it is monitored that the slip of the torque converter is not within the preset threshold range and / or is not maintained for a preset time, determining that the slip of the torque converter does not meet the second preset condition and there is no leakage risk in the transmission hydraulic system.

[0053] In some embodiments of the present disclosure, if the slip of the torque converter is monitored to be within a preset threshold range and maintained for a preset time, the electronic device may determine that the slip of the torque converter meets the second preset condition and there is a risk of leakage in the transmission hydraulic system.

[0054] Specifically, after the electronic device monitors the slip of the torque converter in real time, if it is detected that the slip of the torque converter is within a preset threshold range and is maintained for a preset time, for example, if the slip n of the torque converter is detected to be within the range of (x, y) and is accumulated for a preset time, then the electronic device can determine that the slip of the torque converter meets the second preset condition, and the electronic device can determine that there is a leakage risk in the transmission hydraulic system.

[0055] In other embodiments of the present disclosure, if it is monitored that the slip of the torque converter is not within a preset threshold range and / or is not maintained for a preset time, the electronic device can determine that the slip of the torque converter does not meet the second preset condition and there is no risk of leakage in the transmission hydraulic system.

[0056] Specifically, after the electronic device monitors the slip of the torque converter in real time, if it is detected that the slip of the torque converter is not within a preset threshold range and / or is not maintained for a preset time, for example, if it is detected that the slip n of the torque converter is not within the range of (x, y), if it is detected that the slip n of the torque converter is not within the range of (x, y) but is not maintained for a preset time, or if it is detected that the slip n of the torque converter is not within the range of (x, y) and is not maintained for a preset time, then the electronic device can determine that the slip of the torque converter does not meet the second preset condition, and the electronic device can determine that there is no leakage risk in the transmission hydraulic system.

[0057] Therefore, whether there is a leakage risk can be determined by the slip of the torque converter, thereby avoiding the risk of customer complaints caused by poor shifting quality due to the leakage risk.

[0058] Optionally, S130 may specifically include: if it is determined that there is a leakage risk in the transmission hydraulic system, when it is detected again that the torque converter is in a slipping state and the clutch enters the oil filling stage, controlling the torque converter to increase the initial pressure value to the target pressure value at a preset rising rate, and maintaining the target pressure value during the oil filling stage of the clutch.

[0059] Optionally, the preset rising rate may be a pre-calibrated rate for increasing the pressure value.

[0060] Specifically, when it is determined that there is a risk of leakage in the transmission hydraulic system, and the electronic device again detects that the torque converter is in a slipping state and the clutch enters the oil filling stage (meeting the first preset condition), the electronic device can control the torque converter to increase the initial pressure value to the target pressure value at a preset rising rate, and maintain the target pressure value during the oil filling stage of the clutch.

[0061] Optionally, S140 may specifically include: after detecting that the clutch exits the oil filling stage, controlling the torque converter to perform pressure recovery processing at a preset decrease rate according to a preset adjustment rule, so that the target pressure value is restored to the initial pressure value.

[0062] Optionally, the preset drop rate may be a pre-set rate for controlling the recovery of the pressure value.

[0063] Optionally, the initial pressure value may be a pressure value when pressure compensation is not performed.

[0064] In an embodiment of the present disclosure, when it is detected that the clutch has exited the oil filling stage, the electronic device can control the torque converter to perform pressure recovery processing at a preset decrease rate according to a preset adjustment rule (such as proportional-integral (PI) adaptive adjustment), that is, to restore the target pressure value to the initial pressure value according to the preset decrease rate.

[0065] In this way, the torque converter pressure control can be stabilized and the power output can be guaranteed smoothly, thereby improving the driving comfort of the entire vehicle.

[0066] Optionally, the control method for leakage compensation torque converter pressure may also include: when it is detected that the slip of the torque converter is less than a preset threshold when the clutch enters the oil filling stage next time, maintaining the target pressure value; otherwise, increasing the step pressure and controlling the torque converter to continue pressure compensation processing until the minimum preset threshold is met.

[0067] In an embodiment of the present disclosure, when it is detected that the slip of the torque converter is less than a preset threshold value when the clutch enters the oil filling stage next time, the target pressure value is maintained.

[0068] Specifically, the electronic device continues to monitor the clutch, and when it detects that the next time the clutch shifts into the oil filling stage, it determines whether the slip of the torque converter is less than a preset threshold value. If the slip n of the torque converter is less than the preset threshold value z, the target pressure value is maintained.

[0069] If the slip of the torque converter is not less than a preset threshold, the electronic device can increase the step pressure and control the torque converter to continue pressure compensation processing until the minimum preset threshold is met. At this time, the hydraulic system leakage pressure compensation function is activated and the current pressure compensation value is frozen.

[0070] Therefore, in the disclosed embodiment, the risk of customer complaints due to poor shifting quality caused by hydraulic system leakage during the clutch shifting and oil filling stage is reduced, and the torque converter pressure control during shifting can be better guaranteed to be stable, thereby ensuring smooth power output and improving the driving comfort of the entire vehicle.

[0071] Figure 2 A flow chart of another method for controlling the pressure of a leakage-compensated torque converter provided by an embodiment of the present disclosure is shown.

[0072] like Figure 2 As shown, when a normally traveling vehicle is detected triggering a first preset condition, the electronic device can monitor the torque converter slip in real time and determine the clutch and torque converter states, specifically whether the torque converter is in a slipping state and the clutch has entered the oil filling phase (whether the first preset condition has been triggered). If the torque converter is detected to be in a slipping state and the clutch has entered the oil filling phase, real-time monitoring of the torque converter slip n is resumed; otherwise, real-time monitoring is terminated. The electronic device then determines whether the torque converter slip meets a second preset condition to determine whether there is a leakage risk in the transmission hydraulic system. Specifically, if the torque converter slip is detected to be within a preset threshold and maintained for a preset time, the second preset condition is determined to be met and a leakage risk exists in the transmission hydraulic system. If the torque converter slip is detected to be outside the preset threshold and / or does not maintain for a preset time, the second preset condition is determined to be not met and a leakage risk does not exist in the transmission hydraulic system.

[0073] Furthermore, if a leakage risk is determined in the transmission hydraulic system, when the torque converter is again detected to be in a slipping state and the clutch enters the oil filling phase, the torque converter is controlled to increase the initial pressure value to the target pressure value at a preset increase rate, and the target pressure value is maintained during the clutch oil filling phase. When the clutch is detected to have exited the oil filling phase, the torque converter is controlled to perform a pressure recovery process at a preset decrease rate according to a preset regulation rule, so that the target pressure value returns to the initial pressure value.

[0074] Furthermore, when it is detected that the slip of the torque converter is less than a preset threshold when the clutch enters the oil filling stage next time, the target pressure value is maintained; otherwise, the step pressure is increased and the torque converter is controlled to continue the pressure compensation process until the minimum preset threshold is met, thereby activating the hydraulic system leakage pressure compensation function and freezing the current pressure compensation value.

[0075] Figure 3 A flow chart of another method for controlling the pressure of a leakage-compensated torque converter provided by an embodiment of the present disclosure is shown.

[0076] like Figure 3 As shown, the method for controlling the leakage compensation torque converter pressure includes the following steps.

[0077] S1: The clutch is in the oil filling stage and the torque converter is in the slipping stage.

[0078] When it is detected that the vehicle is running normally and triggers the first preset condition, that is, the torque converter is in a slip state and the clutch enters the oil filling stage, the electronic device can monitor the slip of the torque converter in real time. S2: The slip remains within the threshold for a certain period of time.

[0079] Whether there is a leakage risk in the transmission hydraulic system is determined by monitoring whether the slip of the torque converter satisfies a second preset condition. That is, if it is monitored that the slip of the torque converter is within a preset threshold range and is maintained for a preset time, it is determined that the slip of the torque converter satisfies the second preset condition and there is a leakage risk in the transmission hydraulic system; if it is monitored that the slip of the torque converter is not within the preset threshold range and / or is not maintained for a preset time, it is determined that the slip of the torque converter does not satisfy the second preset condition and there is no leakage risk in the transmission hydraulic system.

[0080] S3, torque converter pressure compensation stage.

[0081] If it is determined that there is a leakage risk in the transmission hydraulic system, the torque converter is controlled to perform pressure compensation processing according to the target pressure value.

[0082] S4, torque converter pressure recovery stage.

[0083] When it is detected that the clutch exits the oil filling stage, the torque converter is controlled to perform pressure recovery processing according to a preset regulation rule.

[0084] S5, PI adaptive adjustment control.

[0085] The torque converter is controlled through PI adaptive regulation. The PI intervention timing can be adjusted by the delay time calibration amount, thereby achieving stable closed-loop control of the torque converter compensation pressure.

[0086] S6. Leakage pressure compensation function is activated.

[0087] When it is detected that the slip of the torque converter is less than the preset threshold value when the clutch enters the oil filling stage next time, the target pressure value is maintained; otherwise, the step pressure is increased and the torque converter is controlled to continue the pressure compensation process until the minimum preset threshold value is met, thereby activating the hydraulic system leakage pressure compensation function and freezing the current pressure compensation value.

[0088] Figure 4 A schematic structural diagram of a control device for leakage compensation torque converter pressure provided by an embodiment of the present disclosure is shown.

[0089] In some embodiments of the present disclosure, Figure 4 The control device for compensating the torque converter pressure of the leakage compensation device shown can be provided in an electronic device. Specifically, the electronic device can include but is not limited to devices such as computer equipment, cloud servers or cloud server clusters.

[0090] like Figure 4 As shown, the leakage compensation torque converter pressure control device 400 may include a first detection module 410 , a data determination module 420 , a first processing module 430 and a second processing module 440 .

[0091] The first detection module 410 can be used to monitor the slip of the torque converter in real time when it is detected that the normally running vehicle triggers the first preset condition.

[0092] The data determination module 420 can be used to determine whether there is a leakage risk in the transmission hydraulic system by monitoring whether the slip of the torque converter meets a second preset condition.

[0093] The first processing module 430 may be configured to control the torque converter to perform pressure compensation processing according to a target pressure value if it is determined that there is a leakage risk in the transmission hydraulic system.

[0094] The second processing module 440 can be used to control the torque converter to perform pressure recovery processing according to a preset adjustment rule after detecting that the clutch exits the oil filling stage.

[0095] Thus, in the disclosed embodiment, when a first preset condition is detected during normal vehicle operation, the torque converter slip is monitored in real time. The transmission hydraulic system is then determined to be at risk of leakage by monitoring whether the torque converter slip satisfies a second preset condition. If a leakage risk is determined, the torque converter is controlled to perform pressure compensation according to a target pressure value. Finally, when the clutch exits the oil filling phase, the torque converter is controlled to perform pressure recovery according to a preset regulation rule. Thus, when a leakage risk is determined in the transmission hydraulic system, the torque converter is controlled to perform pressure compensation and pressure recovery, ensuring stable torque converter pressure control and smooth power output, thereby improving vehicle driving comfort.

[0096] In some embodiments of the present disclosure, the first preset condition is that the torque converter is in a slipping state and the clutch enters an oil filling stage.

[0097] In some embodiments of the present disclosure, the first detection module 410 may specifically include a difference calculation unit and a real-time monitoring unit.

[0098] The difference calculation unit can be used to calculate the difference between the speed of the clutch in the oil filling stage and the speed of the engine in the oil filling stage when it is detected that the normally running vehicle triggers the first preset condition, so as to obtain the slip of the torque converter.

[0099] The real-time monitoring unit can be used to monitor the slip of the torque converter in real time.

[0100] In some embodiments of the present disclosure, the data determination module 420 may specifically include a first determination unit and a second determination unit.

[0101] The first determination unit may be configured to determine that the slip of the torque converter satisfies the second preset condition and that there is a leakage risk in the transmission hydraulic system if it is monitored that the slip of the torque converter is within a preset threshold range and is maintained for a preset time.

[0102] The second determination unit may be configured to determine that the slip of the torque converter does not satisfy the second preset condition and that there is no leakage risk in the transmission hydraulic system if it is monitored that the slip of the torque converter is not within a preset threshold range and / or is not maintained for a preset time.

[0103] In some embodiments of the present disclosure, the first processing module 430 may specifically include a first processing unit.

[0104] The first processing unit can be used to control the torque converter to increase the initial pressure value to the target pressure value at a preset rising rate if it is determined that there is a risk of leakage in the transmission hydraulic system, when it is detected again that the torque converter is in a slipping state and the clutch enters the oil filling stage, and maintain the target pressure value during the oil filling stage of the clutch.

[0105] In some embodiments of the present disclosure, the second processing module 440 may specifically include a second processing unit.

[0106] The second processing unit can be used to control the torque converter to perform pressure recovery processing at a preset decrease rate according to a preset adjustment rule after detecting that the clutch has exited the oil filling stage, so as to restore the target pressure value to the initial pressure value.

[0107] In some embodiments of the present disclosure, the control device 400 for leakage compensation torque converter pressure may specifically include a second detection module and a third processing module.

[0108] The second detection module may be configured to maintain the target pressure value when detecting that the slip of the torque converter is less than a preset threshold value when the clutch enters the oil filling phase next time.

[0109] The third processing module can be used to increase the step pressure and control the torque converter to continue the pressure compensation process until a minimum preset threshold is met.

[0110] It should be noted that Figure 4 The leakage compensation torque converter pressure control device 400 shown may perform Figure 1-3 The various steps in the method embodiment shown are implemented Figure 1-3 The various processes and effects in the illustrated method embodiment are not described in detail here.

[0111] Figure 5 A schematic structural diagram of a control device for leakage compensation torque converter pressure provided by an embodiment of the present disclosure is shown.

[0112] In some embodiments of the present disclosure, Figure 5 The control device for the leakage compensation torque converter pressure shown can be an electronic device. Specifically, the electronic device can include but is not limited to devices such as computer devices, cloud servers or cloud server clusters.

[0113] like Figure 5 As shown, the leakage compensation torque converter pressure control device may include a processor 501 and a memory 502 storing computer program instructions.

[0114] Specifically, the processor 501 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0115] Memory 502 may include a mass storage device for information or instructions. By way of example, and not limitation, memory 502 may include a hard disk drive (HDD), a floppy disk drive, flash memory, an optical disk, a magneto-optical disk, magnetic tape, or a Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 502 may include removable or non-removable (or fixed) media. Where appropriate, memory 502 may be internal or external to the integrated gateway device. In certain embodiments, memory 502 is non-volatile solid-state memory. In certain embodiments, memory 502 includes read-only memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM), electrically alterable ROM (EAROM), or flash memory, or a combination of two or more of these.

[0116] The processor 501 reads and executes the computer program instructions stored in the memory 502 to perform the steps of the leakage compensation torque converter pressure control method provided in the embodiment of the present disclosure.

[0117] In one example, the leakage compensation torque converter pressure control device may further include a transceiver 503 and a bus 504. Figure 5 As shown, the processor 501 , the memory 502 and the transceiver 503 are connected via a bus 504 and communicate with each other.

[0118] The bus 504 may include hardware, software, or both. By way of example and not limitation, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industrial Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a MicroChannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local Bus (VLB) bus, or other suitable buses, or a combination of two or more of these. Where appropriate, the bus 504 may include one or more buses. Although embodiments herein describe and illustrate a particular bus, this application contemplates any suitable bus or interconnect.

[0119] An embodiment of the present disclosure further provides a computer-readable storage medium, which may store a computer program. When the computer program is executed by a processor, the processor implements the method for controlling the pressure of a leakage-compensated torque converter provided by an embodiment of the present disclosure.

[0120] The aforementioned storage medium may, for example, include a memory 502 containing computer program instructions. These instructions may be executed by a processor 501 of the leakage-compensated torque converter pressure control device to implement the leakage-compensated torque converter pressure control method provided in the embodiments of the present disclosure. Alternatively, the storage medium may be a non-transitory computer-readable storage medium, such as a ROM, random access memory (RAM), compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, or optical data storage device.

[0121] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article or apparatus.

[0122] The foregoing description is intended only to provide specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the embodiments described herein, but rather to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A method for controlling the pressure of a leakage compensation torque converter, characterized in that: include: When it is detected that the vehicle is running normally and triggers the first preset condition, the slip of the torque converter is monitored in real time; determining whether there is a leakage risk in the transmission hydraulic system by monitoring whether the slip of the torque converter meets a second preset condition; If it is determined that there is a leakage risk in the transmission hydraulic system, controlling the torque converter to perform pressure compensation processing according to a target pressure value; When it is detected that the clutch exits the oil filling stage, the torque converter is controlled to perform pressure recovery processing according to a preset regulation rule.

2. The method according to claim 1, characterized in that The first preset condition is that the torque converter is in a slipping state and the clutch enters an oil filling stage.

3. The method according to claim 1, characterized in that When it is detected that the normally traveling vehicle triggers the first preset condition, real-time monitoring of the slip of the torque converter includes: When it is detected that the first preset condition is triggered by the vehicle running normally, the difference between the rotation speed of the clutch in the oil filling stage and the rotation speed of the engine in the oil filling stage is calculated to obtain the slip of the torque converter; The slip of the torque converter is monitored in real time.

4. The method according to claim 1, wherein The determining whether there is a leakage risk in the transmission hydraulic system by monitoring whether the slip of the torque converter satisfies a second preset condition includes: If it is monitored that the slip of the torque converter is within a preset threshold range and is maintained for a preset time, it is determined that the slip of the torque converter meets the second preset condition and there is a leakage risk in the transmission hydraulic system; If it is monitored that the slip of the torque converter is not within a preset threshold range and / or is not maintained for a preset time, it is determined that the slip of the torque converter does not meet the second preset condition and there is no leakage risk in the transmission hydraulic system.

5. The method according to claim 1, wherein If it is determined that there is a leakage risk in the transmission hydraulic system, controlling the torque converter to perform pressure compensation processing according to the target pressure value includes: If it is determined that there is a risk of leakage in the transmission hydraulic system, when the torque converter is detected again in a slipping state and the clutch enters the oil filling stage, the torque converter is controlled to increase the initial pressure value to the target pressure value at a preset rising rate, and the target pressure value is maintained during the oil filling stage of the clutch.

6. The method according to claim 1, characterized in that When it is detected that the clutch exits the oil filling stage, controlling the torque converter to perform pressure recovery processing according to a preset adjustment rule includes: When it is detected that the clutch exits the oil filling stage, the torque converter is controlled to perform pressure recovery processing at a preset decrease rate according to a preset adjustment rule, so that the target pressure value is restored to the initial pressure value.

7. The method according to claim 1, characterized in that The method further comprises: When it is detected that the slip of the torque converter is less than a preset threshold value when the clutch enters the oil filling stage next time, maintaining the target pressure value; Otherwise, the step pressure is increased and the torque converter is controlled to continue the pressure compensation process until a minimum preset threshold is met.

8. A control device for leakage compensation torque converter pressure, characterized in that: include: a first detection module, configured to monitor the slip of the torque converter in real time when detecting that a vehicle traveling normally triggers a first preset condition; a data determination module, configured to determine whether there is a leakage risk in the transmission hydraulic system by monitoring whether the slip of the torque converter satisfies a second preset condition; a first processing module, configured to control the torque converter to perform pressure compensation processing according to a target pressure value if it is determined that the transmission hydraulic system has a leakage risk; The second processing module is used to control the torque converter to perform pressure recovery processing according to a preset adjustment rule when it is detected that the clutch exits the oil filling stage.

9. A leakage compensation torque converter pressure control device, characterized in that: include: processor; a memory for storing executable instructions; Wherein, the processor is used to read the executable instructions from the memory and execute the executable instructions to implement the control method of the leakage compensation torque converter pressure according to any one of claims 1 to 7.

10. A non-volatile computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by the processor, the processor implements the method for controlling the pressure of a leakage compensation torque converter according to any one of claims 1 to 7.

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