Leakage compensation hydraulic torque converter pressure control method, device, equipment and medium

Abstract

The present disclosure relates to a leakage compensation hydraulic torque converter pressure control method, device, equipment and medium. The leakage compensation hydraulic torque converter pressure control method comprises: when it is detected that a vehicle in normal driving triggers a first preset condition, the slip of the hydraulic torque converter is monitored in real time; whether the transmission hydraulic system has a leakage risk is determined by monitoring whether the slip of the hydraulic torque converter meets a second preset condition; if it is determined that the transmission hydraulic system has a leakage risk, the hydraulic torque converter is controlled to perform pressure compensation processing according to a target pressure value; when it is detected that the clutch exits the oil filling stage, the hydraulic torque converter is controlled to perform pressure recovery processing according to a preset adjustment rule. According to the embodiment of the present disclosure, the stability of the hydraulic torque converter pressure control can be ensured, the power smooth output can be ensured, and the driving comfort of the whole vehicle can be improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automatic transmission vehicle control, and particularly relates to a control method and device for compensating pressure of a torque converter with leakage, equipment and a medium. BACKGROUND

[0002] With the increasing market share of automatic transmission vehicles, higher requirements are put forward for the shift quality of automatic transmissions. However, due to the poor consistency of some parts, the shift comfort will be poor, for example, there are some differences in the leakage of different batches of transmission hydraulic systems during the shift process. When the clutch enters the oil filling stage, the hydraulic system has a large leakage, which will cause the actual pressure of the torque converter in the slip control to drop rapidly, and the clutch will quickly recover after the oil filling is completed, which will cause impact and vehicle wandering, resulting in poor vehicle comfort. SUMMARY

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

[0004] In a first aspect, the present disclosure provides a control method for compensating pressure of a torque converter with leakage, comprising:

[0005] When a vehicle in normal driving is detected to trigger a first preset condition, the slip of the torque converter is monitored in real time;

[0006] Whether the transmission hydraulic system has a leakage risk is determined by monitoring whether the slip of the torque converter meets a second preset condition;

[0007] If it is determined that the transmission hydraulic system has a leakage risk, the torque converter is controlled to perform pressure compensation processing according to a target pressure value;

[0008] 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.

[0009] In some embodiments, the first preset condition is that the torque converter is in a slip state and the clutch enters an oil filling stage.

[0010] In some embodiments, when a vehicle in normal driving is detected to trigger a first preset condition, the slip of the torque converter is monitored in real time, comprising:

[0011] When the vehicle in normal driving is detected to trigger the first preset condition, the difference between the rotational speed of the clutch in the oil filling stage and the rotational speed of the engine in the oil filling stage is calculated to obtain the slip of the torque converter;

[0012] The slip of the torque converter is monitored in real time.

[0013] In some embodiments, the determining whether the transmission hydraulic system has a risk of leakage by monitoring whether the slip of the torque converter meets a second preset condition comprises:

[0014] If it is monitored that the slip of the torque converter is within a preset threshold range and maintained for a preset time, it is determined that the slip of the torque converter meets the second preset condition and the transmission hydraulic system has a risk of leakage.

[0015] 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 the transmission hydraulic system does not have a risk of leakage.

[0016] In some embodiments, if it is determined that the transmission hydraulic system has a risk of leakage, the torque converter is controlled to perform pressure compensation processing according to a target pressure value, comprising:

[0017] If it is determined that the transmission hydraulic system has a risk of leakage, when the torque converter is detected to be in a slip state again and the clutch enters an oil filling stage, the torque converter is controlled to increase an initial pressure value to the target pressure value at a preset increasing rate, and the target pressure value is maintained during the oil filling stage of the clutch.

[0018] In some embodiments, 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, comprising:

[0019] 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 decreasing rate according to a preset adjustment rule, so that the target pressure value is restored to the initial pressure value.

[0020] In some embodiments, the method further comprises:

[0021] 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.

[0022] Otherwise, the step pressure is increased and the torque converter is controlled to continue the pressure compensation processing until a minimum preset threshold is met.

[0023] In a second aspect, the present disclosure provides a control device for compensating pressure of a torque converter with leakage, comprising:

[0024] A first detection module is configured to monitor the slip of the torque converter in real time when it is detected that a vehicle in normal driving triggers a first preset condition.

[0025] a data determination module configured to determine whether the transmission hydraulic system has a risk of leakage by monitoring whether the slip of the torque converter meets a second preset condition;

[0026] 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 risk of leakage;

[0027] a second processing module configured 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.

[0028] In a third aspect, the present disclosure provides a control device for compensating for leakage of torque converter pressure, comprising:

[0029] a processor;

[0030] a memory configured to store executable instructions;

[0031] The processor is configured to read the executable instructions from the memory and execute the executable instructions to implement the control method for compensating for leakage of torque converter pressure according to the first aspect.

[0032] In a fourth aspect, the present disclosure provides a computer-readable storage medium storing a computer program, which, when executed by a processor, causes the processor to implement the control method for compensating for leakage of torque converter pressure according to the first aspect.

[0033] Compared with the prior art, the technical solutions provided by the embodiments of the present disclosure have the following advantages:

[0034] The control method, device, equipment and medium for compensating for leakage of torque converter pressure provided by the embodiments of the present disclosure can monitor the slip of the torque converter in real time when a vehicle in normal driving is detected to trigger the first preset condition, then determine whether the transmission hydraulic system has a risk of leakage by monitoring whether the slip of the torque converter meets the second preset condition, then control the torque converter to perform pressure compensation processing according to the target pressure value if it is determined that the transmission hydraulic system has a risk of leakage, and finally control the torque converter to perform pressure recovery processing according to the preset adjustment rule after detecting that the clutch exits the oil filling stage. Thus, when it is determined that the transmission hydraulic system has a risk of leakage, the torque converter is controlled to perform pressure compensation processing and pressure recovery processing, so as to ensure stable torque converter pressure control and smooth power output, and improve the driving comfort of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0035] The above-described and other features, advantages, and aspects of the embodiments of the present disclosure will become more apparent as various embodiments of the present disclosure are described in conjunction with the following detailed description. Throughout the drawings, like reference numerals will be understood to refer to like elements, features, and structures. It should be noted that the drawings are not necessarily drawn to scale.

[0036] Figure 1 A flowchart of a control method for compensating for leakage of a hydraulic torque converter pressure according to an embodiment of the present disclosure;

[0037] Figure 2 A flowchart of a control method for compensating for leakage of a hydraulic torque converter pressure according to another embodiment of the present disclosure;

[0038] Figure 3 A flowchart of a control method for compensating for leakage of a hydraulic torque converter pressure according to still another embodiment of the present disclosure;

[0039] Figure 4 A structural diagram of a control device for compensating for leakage of a hydraulic torque converter pressure according to an embodiment of the present disclosure;

[0040] Figure 5 A structural diagram of a control device for compensating for leakage of a hydraulic torque converter pressure according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] Embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. While several embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present disclosure to those skilled in the art. It should be understood that the drawings and embodiments are for illustrative purposes only and are not intended to limit the scope of the present disclosure.

[0042] It should be understood that various steps in the method embodiments of the present disclosure can be performed in different sequences and / or concurrently. In addition, the method embodiments can include additional steps and / or omit performing the steps shown. The scope of the present disclosure is not limited in this regard.

[0043] The term "comprising" and variations thereof as used herein are used inclusively, i.e., "comprising but not limited to." The term "based on" is "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"; the term "some embodiments" means "at least some embodiments." Related terms are defined in the description that follows.

[0044] It should be noted that the terms "first", "second", and the like mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units.

[0045] It should be noted that the terms "one", "multiple" mentioned in the present disclosure are illustrative and not restrictive, and those skilled in the art should understand that unless the context clearly indicates otherwise, "one" or "multiple" should be understood as "one or more".

[0046] The names of the messages or information exchanged between the plurality of devices in the embodiments of the present disclosure are only for illustrative purposes, and are not intended to limit the scope of the messages or information.

[0047] To solve the above problems, the present disclosure provides a leakage compensation hydraulic torque converter pressure control method, device, equipment and medium. In the following Figures 1-3 The leakage compensation hydraulic torque converter pressure control method provided by the embodiments of the present disclosure is described in detail.

[0048] Figure 1 A flowchart of a leakage compensation hydraulic torque converter pressure control method provided by an embodiment of the present disclosure is shown.

[0049] In the embodiments of the present disclosure, the leakage compensation hydraulic torque converter pressure control method can be executed by an electronic device. The electronic device can include but is not limited to devices such as computer devices, cloud servers or cloud server clusters.

[0050] As Figure 1 The leakage compensation hydraulic torque converter pressure control method can include the following steps.

[0051] S110, when detecting that the vehicle in normal driving triggers the first preset condition, the slip of the hydraulic torque converter is monitored in real time.

[0052] In the embodiments of the present disclosure, when detecting that the vehicle in normal driving triggers the first preset condition, the electronic device can monitor the slip of the hydraulic torque converter in real time.

[0053] Optionally, the first preset condition can be a condition preset for triggering monitoring. The first preset condition can be that the hydraulic torque converter is in a slip state and the clutch enters an oil filling stage. The slip state can be that the pump wheel (connected to the engine) of the hydraulic torque converter has a higher speed than the turbine (connected to the input shaft of the transmission), and there is a speed difference. The oil filling stage can be that the hydraulic system starts to supply oil to the piston oil cylinder of the clutch that is about to be engaged (gear up) or separated (gear down).

[0054] Specifically, the automatic transmission vehicle, in a normal driving process, when detecting that the vehicle triggers a first preset condition, i.e., detecting that the hydraulic torque converter is in a slip state and the clutch enters an oil filling stage, the electronic device can monitor the slip of the hydraulic torque converter in real time.

[0055] S120, determining whether the transmission hydraulic system has a leakage risk by monitoring whether the slip of the hydraulic torque converter meets a second preset condition.

[0056] In the embodiments of the present disclosure, the electronic device can determine whether the transmission hydraulic system has a leakage risk by monitoring whether the slip of the hydraulic torque converter meets a second preset condition.

[0057] Optionally, the second preset condition can be a preset condition for judging the change of the slip of the hydraulic torque converter.

[0058] Optionally, the leakage risk can be a case of oil pressure leakage in the shifting process.

[0059] Specifically, after monitoring the slip of the hydraulic torque converter in real time, the electronic device can monitor whether the slip of the hydraulic torque converter meets a second preset condition, so as to determine whether the transmission hydraulic system has a leakage risk.

[0060] S130, if it is determined that the transmission hydraulic system has a leakage risk, controlling the hydraulic torque converter to perform pressure compensation processing according to a target pressure value.

[0061] In the embodiments of the present disclosure, if it is determined that the transmission hydraulic system has a leakage risk, the electronic device can control the hydraulic torque converter to perform pressure compensation processing according to a target pressure value.

[0062] Optionally, the target pressure value can be a pre-calibrated pressure value.

[0063] Optionally, the pressure compensation processing can be processing of increasing the pressure of the hydraulic torque converter.

[0064] Specifically, after determining that the transmission hydraulic system has a leakage risk, the electronic device can control the hydraulic torque converter to perform pressure compensation processing based on a pre-calibrated target pressure value.

[0065] S140, when detecting that the clutch exits the oil filling stage, controlling the hydraulic torque converter to perform pressure recovery processing according to a preset adjustment rule.

[0066] In the embodiments of the present disclosure, when detecting that the clutch exits the oil filling stage, the electronic device can control the hydraulic torque converter to perform pressure recovery processing according to a preset adjustment rule.

[0067] Optionally, the preset adjustment rule can be a rule preset for pressure adjustment, such as a proportional-integral (PI) adaptive adjustment taking error and error change rate as input to adjust proportional (P) and integral (I) parameters in real time, thereby dynamically optimizing the response speed and steady-state performance of the controller.

[0068] Optionally, the pressure recovery processing can be processing of recovering the torque converter to an initial value.

[0069] Specifically, when the electronic device detects that the clutch exits the oil filling stage, the torque converter can be controlled to perform pressure recovery processing according to a preset adjustment rule, such as proportional-integral (PI) adaptive adjustment, so as to recover the torque converter to an initial value.

[0070] Thus, in the embodiments of the present disclosure, when a vehicle in normal driving is detected to trigger the first preset condition, the slip of the torque converter is monitored in real time, then it is determined whether the transmission hydraulic system has a leakage risk by monitoring whether the slip of the torque converter meets the second preset condition, and then if it is determined that the transmission hydraulic system has a leakage risk, the torque converter is controlled to perform pressure compensation processing according to a target pressure value, and finally 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. Thus, when it is determined that the transmission hydraulic system has a leakage risk, the torque converter is controlled to perform pressure compensation processing and pressure recovery processing, so as to ensure stable pressure control of the torque converter and smooth power output, thereby improving the driving comfort of the vehicle.

[0071] Optionally, S110 can specifically include: when a vehicle in normal driving is detected to trigger the first preset condition, calculating the difference between the rotational speed of the clutch in the oil filling stage and the rotational 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.

[0072] In the embodiments of the present disclosure, when a vehicle in normal driving is detected to trigger the first preset condition, the electronic device can calculate the difference between the rotational speed of the clutch in the oil filling stage and the rotational speed of the engine in the oil filling stage to obtain the slip of the torque converter.

[0073] Specifically, when a vehicle in normal driving is detected to trigger the first preset condition, i.e., when the torque converter is detected to be in a slip 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 rotational speed of the clutch in the oil filling stage and the rotational speed of the engine in the oil filling stage.

[0074] Further, the electronic device can monitor the slip of the torque converter in real time.

[0075] Thus, 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 the leakage risk occurs, and thus the customer complaint risk caused by poor shift quality due to the leakage risk can be avoided.

[0076] Optionally, S120 can specifically include: if it is monitored that the slip of the torque converter is within the 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 the transmission hydraulic system has a leakage risk; 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 meet the second preset condition and the transmission hydraulic system does not have a leakage risk.

[0077] In some embodiments of the present disclosure, if it is monitored that the slip of the torque converter is within the preset threshold range and is maintained for a preset time, the electronic device can determine that the slip of the torque converter meets the second preset condition and the transmission hydraulic system has a leakage risk.

[0078] Specifically, after the electronic device monitors the slip of the torque converter in real time, if it is monitored that the slip of the torque converter is within the preset threshold range and is maintained for a preset time, for example, it is monitored that the slip n of the torque converter is within the range (x, y) and is accumulated for a preset time, the electronic device can determine that the slip of the torque converter meets the second preset condition, and the electronic device can determine that the transmission hydraulic system has a leakage risk.

[0079] In some embodiments of the present disclosure, 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, the electronic device can determine that the slip of the torque converter does not meet the second preset condition and the transmission hydraulic system does not have a leakage risk.

[0080] Specifically, after the electronic device monitors the slip of the torque converter in real time, 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, for example, it is monitored that the slip n of the torque converter is not within the range (x, y), it is monitored that the slip n of the torque converter is within the range (x, y) but is not maintained for a preset time, it is monitored that the slip n of the torque converter is not within the range (x, y) and is not maintained for a preset time, at this time, 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 the transmission hydraulic system does not have a leakage risk.

[0081] Thus, it can be determined whether there is a leakage risk through the slip of the torque converter, so that the customer complaint risk caused by poor shift quality due to the leakage risk can be avoided.

[0082] Optionally, S130 can specifically include: if it is determined that the gearbox hydraulic system has a risk of leakage, when the torque converter is detected again to be in the slip 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 increasing rate, and maintaining the target pressure value in the oil filling stage of the clutch.

[0083] Optionally, the preset increasing rate can be a rate of the pre-labeled increasing pressure value.

[0084] Specifically, when it is determined that the gearbox hydraulic system has a risk of leakage, when the electronic device detects again that the torque converter is in the slip state and the clutch enters the oil filling stage (satisfying a 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 increasing rate, and maintain the target pressure value in the oil filling stage of the clutch.

[0085] Optionally, S140 can specifically include: when it is detected that the clutch exits the oil filling stage, controlling the torque converter to perform pressure recovery processing at a preset decreasing rate according to a preset adjustment rule, so as to recover the target pressure value to the initial pressure value.

[0086] Optionally, the preset decreasing rate can be a rate pre-set for controlling pressure value recovery.

[0087] Optionally, the initial pressure value can be a pressure value when no pressure compensation is performed.

[0088] In the embodiments 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 at a preset decreasing rate according to a preset adjustment rule (such as proportional-integral (PI) adaptive adjustment), that is, recover the target pressure value to the initial pressure value at the preset decreasing rate.

[0089] Therefore, the torque converter pressure control can be ensured to be stable, and the power smooth output can be ensured, and the driving comfort of the whole vehicle can be improved.

[0090] Optionally, the control method of the leakage compensation torque converter pressure can further include: when it is detected that the torque converter slip 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 the pressure compensation processing until a minimum preset threshold is satisfied.

[0091] In the embodiments of the present disclosure, when it is detected that the torque converter slip is less than a preset threshold when the clutch enters the oil filling stage next time, the target pressure value is maintained.

[0092] Specifically, the electronic device continues to monitor the clutch, and when detecting that the next clutch shift enters the oil filling stage, judges 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.

[0093] If the slip of the torque converter is not less than the preset threshold value, the electronic device can increase the step pressure and control the torque converter to continue the pressure compensation process until the minimum preset threshold value is met. At this time, the hydraulic system leakage pressure compensation function is activated, and the current pressure compensation value is frozen.

[0094] Thus, in the embodiments of the present disclosure, the risk of customer complaints caused by poor shift quality in the clutch shift oil filling stage due to hydraulic system leakage is reduced, and the stability of the torque converter pressure control during shifting is better ensured, the power is smoothly output, and the driving comfort of the vehicle is improved.

[0095] Figure 2 A flowchart of another method for compensating for leakage of torque converter pressure is shown.

[0096] As shown in Figure 2 When detecting that a vehicle in normal driving triggers a first preset condition, the electronic device can monitor the slip of the torque converter in real time, judge the clutch state and the torque converter state, that is, judge whether the torque converter is in a sliding friction state and the clutch enters an oil filling stage (whether the first preset condition is triggered). If it is detected that the torque converter is in a sliding friction state and the clutch enters an oil filling stage, the slip n of the torque converter is monitored in real time, otherwise the real-time monitoring is exited. Then, whether the slip of the torque converter meets a second preset condition is judged to determine whether the gearbox hydraulic system has a leakage risk, that is, if the slip of the torque converter is monitored within a preset threshold range and maintained for a preset time, it is determined that the slip of the torque converter meets the second preset condition and the gearbox hydraulic system has a leakage risk; if the slip of the torque converter is monitored to be 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 meet the second preset condition and the gearbox hydraulic system does not have a leakage risk.

[0097] Further, if it is determined that the gearbox hydraulic system has a leakage risk, when detecting again that the torque converter is in a sliding friction state and the clutch enters an 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. When detecting that the clutch exits the oil filling stage, the torque converter is controlled to recover the pressure at a preset falling rate according to a preset adjustment rule, so that the target pressure value is restored to the initial pressure value.

[0098] Further, when the slip of the torque converter is less than a preset threshold when it is detected that 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, so that the hydraulic system leakage pressure compensation function is activated, and the current pressure compensation value is frozen.

[0099] Figure 3 A flowchart of another method for controlling the pressure of a leakage compensation torque converter provided by an embodiment of the present disclosure is shown.

[0100] As shown in the figure, the method for controlling the pressure of a leakage compensation torque converter includes the following steps. Figure 3

[0101] S1, the clutch is in an oil filling stage, and the torque converter is in a sliding friction stage.

[0102] When it is detected that a vehicle in normal driving triggers a first preset condition, that is, the torque converter is in a sliding friction state and the clutch enters an oil filling stage, the electronic device can monitor the slip of the torque converter in real time,

[0103] S2, the slip is maintained within a threshold value for a certain time.

[0104] Whether the transmission hydraulic system has a leakage risk is determined by monitoring whether the slip of the torque converter meets 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 meets the second preset condition and the transmission hydraulic system has a leakage risk; 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 meet the second preset condition and the transmission hydraulic system does not have a leakage risk.

[0105] S3, torque converter pressure compensation stage.

[0106] If it is determined that the transmission hydraulic system has a leakage risk, the torque converter is controlled to perform pressure compensation processing according to a target pressure value.

[0107] S4, torque converter pressure recovery stage.

[0108] 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.

[0109] S5, PI adaptive adjustment control.

[0110] ​The PI intervention timing can be adjusted by a delay time calibration amount, so as to realize stable closed-loop control of the hydraulic torque converter compensation pressure.

[0111] S6, the leakage pressure compensation function is activated.

[0112] When it is detected that the slip of the hydraulic 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 hydraulic torque converter is controlled to continue the pressure compensation process until the minimum preset threshold is met, so that the hydraulic system leakage pressure compensation function is activated, and the current pressure compensation value is frozen.

[0113] Figure 4 A structural schematic diagram of a leakage compensation hydraulic torque converter pressure control device provided by an embodiment of the present disclosure is shown.

[0114] In some embodiments of the present disclosure, Figure 4 The leakage compensation hydraulic torque converter pressure control device shown can be arranged in 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, etc.

[0115] As Figure 4 The leakage compensation hydraulic torque converter pressure control device 400 can include a first detection module 410, a data determination module 420, a first processing module 430 and a second processing module 440, as shown.

[0116] The first detection module 410 can be used to monitor the slip of the hydraulic torque converter in real time when it is detected that the vehicle in normal driving triggers the first preset condition.

[0117] The data determination module 420 can be used to determine whether the transmission hydraulic system has a leakage risk by monitoring whether the slip of the hydraulic torque converter meets the second preset condition.

[0118] The first processing module 430 can be used to control the hydraulic torque converter to perform pressure compensation processing according to the target pressure value if it is determined that the transmission hydraulic system has a leakage risk.

[0119] The second processing module 440 can be used to control the hydraulic 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.

[0120] Therefore, in the embodiments of the present disclosure, the slip of the torque converter can be monitored in real time when the vehicle in normal driving is detected to trigger the first preset condition, then whether the transmission hydraulic system has a leakage risk can be determined by monitoring whether the slip of the torque converter meets the second preset condition, and then if it is determined that the transmission hydraulic system has a leakage risk, the torque converter is controlled to perform pressure compensation processing according to the target pressure value, and finally when the clutch is detected to exit the oil filling stage, the torque converter is controlled to perform pressure recovery processing according to the preset adjustment rule. Therefore, when it is determined that the transmission hydraulic system has a leakage risk, the torque converter is controlled to perform pressure compensation processing and pressure recovery processing, so as to ensure stable pressure control of the torque converter and smooth power output, and improve the driving comfort of the vehicle.

[0121] In some embodiments of the present disclosure, the first preset condition is that the torque converter is in a sliding friction state and the clutch enters an oil filling stage.

[0122] In some embodiments of the present disclosure, the first detection module 410 can specifically include a difference calculation unit and a real-time monitoring unit.

[0123] The difference calculation unit can be used to calculate the difference between the rotational speed of the clutch in the oil filling stage and the rotational speed of the engine in the oil filling stage when the vehicle in normal driving is detected to trigger the first preset condition, so as to obtain the slip of the torque converter.

[0124] The real-time monitoring unit can be used to monitor the slip of the torque converter in real time.

[0125] In some embodiments of the present disclosure, the data determination module 420 can specifically include a first determination unit and a second determination unit.

[0126] The first determination unit can be used to determine that the slip of the torque converter meets the second preset condition and the transmission hydraulic system has a leakage risk if the slip of the torque converter is monitored to be within a preset threshold range and maintained for a preset time.

[0127] The second determination unit can be used to determine that the slip of the torque converter does not meet the second preset condition and the transmission hydraulic system does not have a leakage risk if the slip of the torque converter is monitored to be not within the preset threshold range and / or not maintained for the preset time.

[0128] In some embodiments of the present disclosure, the first processing module 430 can specifically include a first processing unit.

[0129] The first processing unit can be configured to, if it is determined that the gearbox hydraulic system has a risk of leakage, when the torque converter is detected to be in the slip state again and the clutch enters the oil filling stage, control the torque converter to increase the initial pressure value to the target pressure value at a preset increasing rate, and maintain the target pressure value during the oil filling stage of the clutch.

[0130] In some embodiments of the present disclosure, the second processing module 440 can specifically include a second processing unit.

[0131] The second processing unit can be configured to, when it is detected that the clutch exits the oil filling stage, control the torque converter to perform pressure recovery processing at a preset decreasing rate according to a preset adjustment rule, so as to restore the target pressure value to the initial pressure value.

[0132] In some embodiments of the present disclosure, the leakage compensation torque converter pressure control apparatus 400 can specifically include a second detection module and a third processing module.

[0133] The second detection module can be configured to, 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, maintain the target pressure value.

[0134] The third processing module can be configured to, otherwise, increase the step pressure and control the torque converter to continue the pressure compensation processing until a minimum preset threshold is met.

[0135] It should be noted that, Figure 4 The leakage compensation torque converter pressure control apparatus 400 shown can perform Figures 1-3 each step in the method embodiments shown, and achieve Figures 1-3 each process and effect in the method embodiments shown, which will not be repeated here.

[0136] Figure 5 FIG. 1 shows a structural schematic diagram of a leakage compensation torque converter pressure control apparatus according to an embodiment of the present disclosure.

[0137] In some embodiments of the present disclosure, Figure 5 The leakage compensation torque converter pressure control apparatus 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, etc.

[0138] As Figure 5 shown, the leakage compensation torque converter pressure control apparatus can include a processor 501 and a memory 502 storing computer program instructions.

[0139] In particular, the processor 501 can include a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement one or more embodiments of the present application.

[0140] The memory 502 can include mass storage for information or instructions. For example, and without limitation, the memory 502 can include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a Universal Serial Bus (USB) drive or a combination of two or more of these. The memory 502 can be removable and / or non-removable (or fixed) as appropriate. The memory 502 can be internal or external to the integrated gateway device as appropriate. In particular embodiments, the memory 502 is non-volatile solid-state memory. In particular embodiments, the memory 502 includes read-only memory (ROM). The ROM can be mask programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically alterable ROM (EAROM), or flash memory, or a combination of two or more of these, as appropriate.

[0141] The processor 501 performs the steps of the control method for compensating for leakage in a hydrodynamic torque converter pressure provided by embodiments of the present disclosure by reading and executing computer program instructions stored in the memory 502.

[0142] In one example, the control device for compensating for leakage in a hydrodynamic torque converter pressure can further include a transceiver 503 and a bus 504. As shown in Figure 5 The processor 501, the memory 502, and the transceiver 503 are connected by the bus 504 and complete communication among each other.

[0143] Bus 504 includes hardware, software, or both. By way of example and not limitation, a bus can include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side BUS (FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel 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 another suitable bus or a combination of two or more of these. Where appropriate, bus 504 can include one or more buses. Although the application embodiments described and illustrated herein focus on specific buses or interconnects, the application contemplates any suitable bus or interconnect.

[0144] The embodiment of the present disclosure further provides a computer readable storage medium, which can store a computer program. When the computer program is executed by a processor, the processor implements the method for controlling the pressure of the leakage compensation hydraulic torque converter provided by the embodiment of the present disclosure.

[0145] The storage medium described above can for example include a memory 502 storing computer program instructions, and the above instructions can be executed by the processor 501 of the control device for the pressure of the leakage compensation hydraulic torque converter to complete the method for controlling the pressure of the leakage compensation hydraulic torque converter provided by the embodiment of the present disclosure. Alternatively, the storage medium can be a non-transitory computer readable storage medium, for example, the non-transitory computer readable storage medium can be a ROM, a Random Access Memory (RAM), a Compact Disc ROM (CD-ROM), a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0146] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve the purpose of distinguishing between two entities or operations, without necessarily requiring or implying any actual relationship or order between these entities or operations. Moreover, the term "comprising", used in the context of describing a composition, a process, a method, an article, or an apparatus, should not be construed as implying any servitudes or excluding the possession of additional elements or steps. However, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise.

[0147] The foregoing is merely illustrative of the principles of this disclosure and various modifications can be made by those skilled in the art without departing from the spirit and scope of the disclosure. The above embodiments are illustrative, and not restrictive. The scope of the disclosure should therefore be determined not with reference to the above description but with reference to the claims appended hereto.

Claims

1. A control method for compensating for pressure in a hydraulic torque converter for a leak, characterized by, The method comprises the following steps: real-time monitoring of the slip of the hydraulic torque converter when a vehicle in normal driving is detected to trigger a first preset condition; the first preset condition is that the hydraulic torque converter is in a slip state and the clutch enters an oil filling stage; the slip state is a state in which the pump wheel speed of the hydraulic torque converter is greater than the turbine speed; the oil filling stage is a stage in which the hydraulic system supplies oil to the piston oil cylinder of the clutch that is about to be engaged in the upshift process or about to be separated in the downshift process; determining whether the transmission hydraulic system has a leakage risk by monitoring whether the slip of the hydraulic torque converter meets a second preset condition; if it is determined that the transmission hydraulic system has a leakage risk, controlling the hydraulic 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, controlling the hydraulic torque converter to perform pressure recovery processing according to a preset adjustment rule; the step of determining whether the transmission hydraulic system has a leakage risk by monitoring whether the slip of the hydraulic torque converter meets a second preset condition comprises: if it is monitored that the slip of the hydraulic torque converter is within a preset threshold range and is maintained for a preset time, it is determined that the slip of the hydraulic torque converter meets the second preset condition and the transmission hydraulic system has a leakage risk; if it is monitored that the slip of the hydraulic 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 hydraulic torque converter does not meet the second preset condition and the transmission hydraulic system does not have a leakage risk.

2. The method of claim 1, wherein, the step of real-time monitoring of the slip of the hydraulic torque converter when a vehicle in normal driving is detected to trigger a first preset condition comprises: when it is detected that a vehicle in normal driving triggers the first preset condition, calculating the difference between the rotational speed of the clutch in the oil filling stage and the rotational speed of the engine in the oil filling stage to obtain the slip of the hydraulic torque converter; real-time monitoring of the slip of the hydraulic torque converter.

3. The method of claim 1, wherein, the step of controlling the hydraulic 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 comprises: if it is determined that the transmission hydraulic system has a leakage risk, when the hydraulic torque converter is detected again to be in a slip state and the clutch enters an oil filling stage, controlling the hydraulic torque converter to increase an initial pressure value to the target pressure value at a preset increasing rate, and maintaining the target pressure value during the oil filling stage of the clutch.

4. The method of claim 1, wherein, the step of controlling the hydraulic 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 comprises: when it is detected that the clutch exits the oil filling stage, controlling the hydraulic torque converter to perform pressure recovery processing at a preset decreasing rate according to a preset adjustment rule, so that the target pressure value returns to an initial pressure value.

5. The method of claim 1, wherein, The method further comprises: when it is detected that the slip of the hydraulic 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 hydraulic torque converter to continue the pressure compensation processing until a minimum preset threshold is met.

6. A control device for compensating for pressure in a hydraulic torque converter for leakage, characterized in that The method comprises the following steps: The first detection module is configured to monitor the slip of the torque converter in real time when detecting that the vehicle in normal driving triggers the first preset condition. The first preset condition is that the torque converter is in a sliding friction state and the clutch enters an oil filling stage; the sliding friction state is a state in which the pump wheel speed of the torque converter is greater than the turbine speed; and the oil filling stage is a stage in which the hydraulic system supplies oil to the piston cylinder of the clutch that is about to be engaged in the upshift process or about to be separated in the downshift process. The data determination module is configured to determine whether the transmission hydraulic system has a leakage risk by monitoring whether the slip of the torque converter meets a second preset condition. The first processing module is 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 configured 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. The data determination module includes: The first determination unit is configured to determine that the slip of the torque converter meets the second preset condition and the transmission hydraulic system has a leakage risk if it is monitored that the slip of the torque converter is within a preset threshold range and is maintained for a preset time. The second determination unit is configured to determine that the slip of the torque converter does not meet the second preset condition and the transmission hydraulic system does not have a leakage risk if it is monitored that the slip of the torque converter is not within the preset threshold range and / or is not maintained for the preset time.

7. A control device for compensating for pressure in a hydraulic torque converter for leakage, characterized in that The processor; The memory is configured to store executable instructions. The processor is configured 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 1-5. The storage medium stores a computer program, and when the computer program is executed by the processor, the processor implements the control method of the leakage compensation torque converter pressure according to any one of claims 1-5.

8. A non-transitory computer readable storage medium, comprising: ​

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