CN118066228A - Pressure control method and device for clutch, vehicle and storage medium - Google Patents

Abstract

The application relates to the technical field of clutches, in particular to a pressure control method and device of a clutch, a vehicle and a storage medium, wherein the method comprises the following steps: detecting whether the vehicle gearbox is in a target voltage stabilizing working condition or not based on the current hydraulic pressure of the vehicle gearbox; under the condition that the vehicle gearbox is in a target pressure stabilizing working condition, acquiring the current oil temperature of the vehicle gearbox and the target hydraulic pressure of a vehicle clutch; and generating a target section adjustment value of a current oil path of the vehicle gearbox based on the current oil temperature and the target hydraulic pressure, and controlling the output hydraulic pressure of the vehicle gearbox according to the target section adjustment value so as to respond to the combination requirement of the vehicle clutch by utilizing the output hydraulic pressure. According to the embodiment of the application, the current oil path section of the vehicle gearbox can be adjusted according to the actual condition of the oil temperature of the transmission so as to adjust the output hydraulic pressure, ensure the rapid combination of the clutch and improve the driving experience of a user.

Description

Pressure control method and device for clutch, vehicle and storage medium

Technical Field

The present application relates to the field of clutch technologies, and in particular, to a method and apparatus for controlling pressure of a clutch, a vehicle, and a storage medium.

Background

With the continuous expansion of the automobile market, the outlet quantity and the total sales quantity of the fuel oil vehicles are greatly increased, and the sales quantity of the fuel oil vehicles in alpine regions is also increased. Under the low temperature condition, the combination of the clutch of the vehicle is influenced due to the viscosity improvement of the oil liquid of the gearbox, and the performance design of the vehicle under the low temperature condition needs to be adjusted so as to ensure the driving experience of a user. In the related art, the main line pressure generated by the oil pump provides the coupling pressure of the clutch, and then the clutch is smoothly coupled through the solenoid valve adjusting oil path.

However, in the related art, under the extremely low temperature condition, pressure lag caused by great improvement of the oil viscosity of the gearbox is difficult to compensate, so that the interval time from the emission of the clutch combining target pressure to the actual physical fitting of the clutch is increased, the rapid combination of the clutch under the low temperature condition cannot be ensured, the use experience of a user is influenced, the practicability is insufficient, and the problem needs to be solved urgently.

Disclosure of Invention

The application provides a pressure control method, a pressure control device, a vehicle and a storage medium of a clutch, which are used for solving the problems that in the related art, under the extremely low temperature condition, pressure hysteresis caused by great improvement of oil viscosity of a gearbox is difficult to compensate, so that the interval time from the emission of the clutch combining target pressure to the actual physical fitting of the clutch is increased, the rapid combination of the clutch under the low temperature condition cannot be ensured, the use experience of a user is influenced, the practicability is insufficient and the like.

An embodiment of a first aspect of the present application provides a pressure control method of a clutch, including the steps of: detecting whether a vehicle gearbox is in a target voltage stabilizing working condition or not based on the current hydraulic pressure of the vehicle gearbox; acquiring the current oil temperature of the vehicle gearbox and the target hydraulic pressure of a vehicle clutch under the condition that the vehicle gearbox is in the target pressure stabilizing working condition; and generating a target section adjustment value of a current oil way of the vehicle gearbox based on the current oil temperature and the target hydraulic pressure, and controlling output hydraulic pressure of the vehicle gearbox according to the target section adjustment value so as to respond to the combination requirement of the vehicle clutch by utilizing the output hydraulic pressure.

Optionally, in one embodiment of the present application, the generating the target section adjustment value of the current oil passage of the vehicle transmission based on the current oil temperature and the target hydraulic pressure includes: judging whether the current oil temperature is smaller than or equal to a first preset low temperature threshold value; and if the current oil temperature is smaller than or equal to the first preset low-temperature threshold value, resetting the target section adjustment value, otherwise, calculating the target section adjustment value based on the target hydraulic pressure and the current hydraulic pressure.

Optionally, in one embodiment of the present application, before calculating the target section adjustment value based on the target hydraulic pressure and the current hydraulic pressure, the method further includes: detecting whether the current oil temperature is smaller than or equal to a second preset low temperature threshold, wherein the second preset low temperature threshold is larger than the first preset low temperature threshold; and under the condition that the current oil temperature is detected to be smaller than or equal to the second preset low-temperature threshold value, compensating the pressure value of the current hydraulic pressure, and taking the compensated pressure value as the current hydraulic pressure.

Optionally, in one embodiment of the present application, the compensating the pressure value of the current hydraulic pressure includes: calculating a low-temperature pressure compensation value of the current oil way according to the current oil temperature and the current hydraulic pressure; and compensating the current hydraulic pressure based on the low-temperature pressure compensation value.

Optionally, in one embodiment of the present application, the detecting whether the vehicle gearbox is in the target voltage stabilizing condition based on the current hydraulic pressure of the vehicle gearbox includes: acquiring the pressure fluctuation state of the current hydraulic pressure; and under the condition that the pressure fluctuation state meets the preset pressure stabilizing condition, judging that the vehicle gearbox is in a target pressure stabilizing working condition.

Optionally, in one embodiment of the present application, before controlling the output hydraulic pressure of the vehicle transmission according to the target section adjustment value, further includes: detecting whether the current hydraulic pressure and/or the current oil temperature meet preset clutch working conditions or not; and alarming based on the current hydraulic pressure and/or the current oil temperature under the condition that the current hydraulic pressure and/or the current oil temperature are detected to not meet the preset clutch working condition.

An embodiment of the second aspect of the present application provides a pressure control device of a clutch, including: the detection module is used for detecting whether the vehicle gearbox is in a target voltage stabilizing working condition or not based on the current hydraulic pressure of the vehicle gearbox; the acquisition module is used for acquiring the current oil temperature of the vehicle gearbox and the target hydraulic pressure of the vehicle clutch under the condition that the vehicle gearbox is in the target pressure stabilizing working condition; and the control module is used for generating a target section adjustment value of a current oil way of the vehicle gearbox based on the current oil temperature and the target hydraulic pressure, and controlling the output hydraulic pressure of the vehicle gearbox according to the target section adjustment value so as to respond to the combination requirement of the vehicle clutch by utilizing the output hydraulic pressure.

Optionally, in one embodiment of the present application, the control module includes: the judging unit is used for judging whether the current oil temperature is smaller than or equal to a first preset low-temperature threshold value; and the zero clearing unit is used for clearing the target section adjustment value if the current oil temperature is smaller than or equal to the first preset low-temperature threshold value, and calculating the target section adjustment value based on the target hydraulic pressure and the current hydraulic pressure otherwise.

Optionally, in one embodiment of the present application, the control module further includes: a first detection unit configured to detect whether the current oil temperature is less than or equal to a second preset low temperature threshold value before calculating the target cross-section adjustment value based on the target hydraulic pressure and the current hydraulic pressure, wherein the second preset low temperature threshold value is greater than the first preset low temperature threshold value; and the compensation unit is used for compensating the pressure value of the current hydraulic pressure under the condition that the current oil temperature is detected to be smaller than or equal to the second preset low-temperature threshold value, and taking the compensated pressure value as the current hydraulic pressure.

Optionally, in one embodiment of the present application, the compensation unit is specifically configured to: calculating a low-temperature pressure compensation value of the current oil way according to the current oil temperature and the current hydraulic pressure; and compensating the current hydraulic pressure based on the low-temperature pressure compensation value.

Optionally, in one embodiment of the present application, the detection module includes: an acquisition unit configured to acquire a pressure fluctuation state of the current hydraulic pressure; and the judging unit is used for judging that the vehicle gearbox is in a target voltage stabilizing working condition under the condition that the pressure fluctuation state meets a preset voltage stabilizing condition.

Optionally, in one embodiment of the present application, the control module further includes: a second detection unit for detecting whether the current hydraulic pressure and/or the current oil temperature satisfies a preset clutch operation condition before controlling the output hydraulic pressure of the vehicle transmission according to the target section adjustment value; and the alarm unit is used for alarming based on the current hydraulic pressure and/or the current oil temperature under the condition that the current hydraulic pressure and/or the current oil temperature are detected to not meet the preset clutch working condition.

An embodiment of a third aspect of the present application provides a vehicle including: the clutch pressure control device comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to realize the clutch pressure control method according to the embodiment.

A fourth aspect of the present application provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the pressure control method of the clutch as above.

An embodiment of the fifth aspect of the present application provides a computer program which, when executed, implements the pressure control method of the clutch as above.

According to the embodiment of the application, the current oil path section of the vehicle gearbox can be adjusted according to the actual condition of the oil temperature of the transmission so as to adjust the output hydraulic pressure, ensure the rapid combination of the clutch and improve the driving experience of a user. Therefore, the problems that in the related art, under the extremely low temperature condition, pressure hysteresis caused by great improvement of oil viscosity of the gearbox is difficult to compensate, the interval time from the emission of the clutch combining target pressure to the actual physical lamination of the clutch is increased, the quick combination of the clutch under the low temperature condition cannot be ensured, the use experience of a user is affected, the practicability is insufficient and the like are solved.

Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a flow chart of a method for controlling pressure of a clutch according to an embodiment of the present application;

FIG. 2 is a schematic pressure control flow diagram of a prior art clutch according to one embodiment of the present application;

FIG. 3 is a schematic diagram of a pressure control flow of an improved clutch according to one embodiment of the present application;

fig. 4 is a schematic structural view of a pressure control device of a clutch according to an embodiment of the present application;

Fig. 5 is a schematic structural view of a vehicle according to an embodiment of the present application.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

The following describes a pressure control method, a device, a vehicle, and a storage medium of a clutch according to an embodiment of the present application with reference to the accompanying drawings. Aiming at the problems that in the related art mentioned in the background art, under the extremely low temperature condition, the pressure hysteresis caused by the great increase of the oil viscosity of the gearbox is difficult to compensate, so that the interval time from the emission of the clutch combining target pressure to the actual physical lamination of the clutch is increased, the rapid combination of the clutch under the low temperature condition cannot be ensured, the use experience of a user is influenced, and the practicability is insufficient, the application provides the pressure control method of the clutch, which can adjust the current oil path section of the gearbox of the vehicle according to the actual condition of the oil temperature of the gearbox so as to adjust the output hydraulic pressure, ensure the rapid combination of the clutch and improve the driving experience of the user. Therefore, the problems that in the related art, under the extremely low temperature condition, pressure hysteresis caused by great improvement of oil viscosity of the gearbox is difficult to compensate, the interval time from the emission of the clutch combining target pressure to the actual physical lamination of the clutch is increased, the quick combination of the clutch under the low temperature condition cannot be ensured, the use experience of a user is affected, the practicability is insufficient and the like are solved.

Specifically, fig. 1 is a schematic flow chart of a pressure control method of a clutch according to an embodiment of the present application.

As shown in fig. 1, the pressure control method of the clutch includes the steps of:

In step S101, it is detected whether the vehicle transmission is in the target steady-pressure condition based on the current hydraulic pressure of the vehicle transmission.

It will be appreciated that in embodiments of the present application, hydraulic pressure may be monitored in real time by installing a hydraulic sensor in the hydraulic system of the vehicle transmission. Because the oil pump produces the line pressure, along with the pump oil frequency of oil pump, the pressure size of line pressure can exist along with the fluctuation of class sine wave of rotation of oil pump, need form stable straight line pressure after the pressure adjustment of energy storage ware (accumulator), the oil circuit state of this moment is the target steady voltage operating mode, can confirm the hydraulic pressure range of target steady voltage operating mode, real-time supervision hydraulic sensor's output, in order to confirm whether the vehicle gearbox is in the target steady voltage operating mode.

Optionally, in one embodiment of the present application, detecting whether the vehicle gearbox is in a target steady-state condition based on a current hydraulic pressure of the vehicle gearbox includes: acquiring the pressure fluctuation state of the current hydraulic pressure; and under the condition that the pressure fluctuation state meets the preset pressure stabilizing condition, judging that the vehicle gearbox is in the target pressure stabilizing working condition.

It should be noted that the preset voltage stabilizing condition may be set by those skilled in the art according to actual situations, and is not specifically limited herein.

In the actual execution process, the sine wave main line pressure pumped by the oil pump is stabilized into linear pressure stabilization after passing through the energy accumulator, and the average pressure is basically unchanged, so that the data acquisition system in the vehicle can be utilized to acquire the output data of the hydraulic sensor in real time, and according to the current pressure fluctuation state of the hydraulic pressure, the pressure fluctuation state is considered to meet the preset pressure stabilization condition under the condition that the fluctuation and the floating of the current pressure fluctuation state can be considered to be the average pressure stability, namely the vehicle gearbox is in the target pressure stabilization working condition.

Optionally, in one embodiment of the present application, before controlling the output hydraulic pressure of the vehicle transmission according to the target section adjustment value, further includes: detecting whether the current hydraulic pressure and/or the current oil temperature meet the preset clutch working conditions or not; and alarming based on the current hydraulic pressure and/or the current oil temperature under the condition that the current hydraulic pressure and/or the current oil temperature are detected to not meet the preset clutch working condition.

It should be noted that the preset clutch operating conditions may be set by those skilled in the art according to actual situations, and are not specifically limited herein.

In the actual execution process, real-time numerical values of hydraulic pressure and oil temperature of a vehicle gearbox can be monitored in real time by installing a hydraulic sensor and an oil temperature sensor, preset clutch working conditions are set according to design requirements of clutch work, the range of the hydraulic pressure and the oil temperature is included, real-time data of the hydraulic pressure and the oil temperature are monitored and analyzed by utilizing an in-vehicle data acquisition system, whether the current hydraulic pressure and/or the current oil temperature meets the preset clutch working conditions is judged, and when the fact that the current hydraulic pressure and/or the current oil temperature do not meet the preset clutch working conditions is detected, an alarm signal is sent based on the current hydraulic pressure and/or the current oil temperature to remind a driver to carry out corresponding treatment or maintenance.

In step S102, a current oil temperature of the vehicle transmission and a target hydraulic pressure of the vehicle clutch are obtained with the vehicle transmission in a target steady-state condition.

It can be appreciated that in the embodiment of the present application, when the vehicle gearbox is in the target pressure-stabilizing condition, the target hydraulic pressure can be obtained through the electronic control unit of the vehicle, even if the clutch realizes the hydraulic pressure value of smooth combination.

In step S103, a target section adjustment value of a current oil passage of the vehicle transmission is generated based on the current oil temperature and the target hydraulic pressure, and an output hydraulic pressure of the vehicle transmission is controlled according to the target section adjustment value to respond to an engagement request of the vehicle clutch with the output hydraulic pressure.

It can be understood that in the embodiment of the application, the oil temperature sensor can be utilized to monitor the oil temperature of the vehicle gearbox in real time, and the sectional area of the current oil way is changed by utilizing the electromagnetic valve (solenoid valve) according to the target hydraulic pressure required to be achieved by the oil way, so that the hydraulic pressure value of the oil way is adjusted, and the output hydraulic pressure of the vehicle gearbox is controlled to achieve the target hydraulic pressure so as to respond to the combination requirement of the vehicle clutch by utilizing the output hydraulic pressure.

Optionally, in one embodiment of the present application, generating the target section adjustment value of the current oil passage of the vehicle transmission based on the current oil temperature and the target hydraulic pressure includes: judging whether the current oil temperature is smaller than or equal to a first preset low temperature threshold value or not; if the current oil temperature is smaller than or equal to a first preset low-temperature threshold value, resetting the target section adjustment value, otherwise, calculating the target section adjustment value based on the target hydraulic pressure and the current hydraulic pressure.

It should be noted that the first preset low temperature threshold may be set by a person skilled in the art according to the actual situation, and is not specifically limited herein.

In the actual execution process, the target section adjustment value can be cleared when the current oil temperature of the vehicle gearbox is smaller than or equal to the first preset low-temperature threshold value, namely, under the condition that the oil temperature of the gearbox is extremely low, the current oil way after pressure stabilization is directly led into the oil way with the clutch combination pressure, the electromagnetic valve is closed, the hydraulic adjustment of the electromagnetic valve on the oil way is stopped, and therefore the situation that the hydraulic pressure supplied to the clutch is insufficient due to the fact that the viscosity of the gearbox oil is greatly improved under the extremely low-temperature condition is prevented.

Optionally, in one embodiment of the present application, before calculating the target section adjustment value based on the target hydraulic pressure and the current hydraulic pressure, the method further includes: detecting whether the current oil temperature is smaller than or equal to a second preset low temperature threshold, wherein the second preset low temperature threshold is larger than the first preset low temperature threshold; and under the condition that the current oil temperature is detected to be smaller than or equal to a second preset low-temperature threshold value, compensating the pressure value of the current hydraulic pressure, and taking the compensated pressure value as the current hydraulic pressure.

It should be noted that the second preset low temperature threshold may be set by a person skilled in the art according to the actual situation, and is not specifically limited herein.

In the actual implementation process, when the current oil temperature of the vehicle gearbox is smaller than or equal to the second preset low-temperature threshold value, namely the temperature of the gearbox is lower, but the extreme low-temperature condition is not achieved, the pressure value of the current hydraulic pressure can be compensated, and the purpose of stable combination of the clutch is guaranteed.

Optionally, in one embodiment of the present application, compensating the pressure value of the current hydraulic pressure includes: calculating a low-temperature pressure compensation value of the current oil way according to the current oil temperature and the current hydraulic pressure; the current hydraulic pressure is compensated based on the low temperature pressure compensation value.

In the actual execution process, the oil temperature and the current hydraulic value of the vehicle gearbox can be monitored in real time by using a vehicle-mounted sensor, automatic low-temperature pressure compensation is realized in a vehicle control system according to a set low-temperature pressure compensation algorithm, and the low-temperature pressure compensation value of the current oil way is calculated.

The working of the embodiment of the present application will be described in detail in the following. Fig. 2 is a schematic diagram of a pressure control flow of a clutch according to an embodiment of the present application, and fig. 3 is a schematic diagram of a pressure control flow of a clutch after improvement according to an embodiment of the present application, it can be known that, with respect to step S204 in the prior art of fig. 2, step S304 after improvement of fig. 3 can determine whether the transmission oil temperature is lower than a certain threshold value, so that step S306 is entered under the condition that the transmission oil temperature is lower than the certain threshold value, otherwise step S305 is entered, so as to avoid the situation that the hydraulic pressure supplied to the clutch is insufficient due to a great increase in viscosity of the transmission oil under the extremely low temperature condition that the transmission oil temperature is lower than the certain threshold value.

According to the pressure control method of the clutch, provided by the embodiment of the application, the current oil path section of the vehicle gearbox can be adjusted according to the actual condition of the oil temperature of the transmission so as to adjust the output hydraulic pressure, ensure the rapid combination of the clutch and improve the driving experience of a user. Therefore, the problems that in the related art, under the extremely low temperature condition, pressure hysteresis caused by great improvement of oil viscosity of the gearbox is difficult to compensate, the interval time from the emission of the clutch combining target pressure to the actual physical lamination of the clutch is increased, the quick combination of the clutch under the low temperature condition cannot be ensured, the use experience of a user is affected, the practicability is insufficient and the like are solved.

Next, a pressure control device of a clutch according to an embodiment of the present application will be described with reference to the accompanying drawings.

Fig. 4 is a schematic structural view of a pressure control device of a clutch according to an embodiment of the present application.

As shown in fig. 4, the clutch pressure control device 10 includes: the device comprises a detection module 100, an acquisition module 200 and a control module 300.

The detection module 100 is configured to detect whether the vehicle gearbox is in a target voltage-stabilizing condition based on a current hydraulic pressure of the vehicle gearbox.

The acquisition module 200 is used for acquiring the current oil temperature of the vehicle gearbox and the target hydraulic pressure of the vehicle clutch under the condition that the vehicle gearbox is in the target pressure stabilizing working condition.

The control module 300 is configured to generate a target section adjustment value of a current oil path of the vehicle transmission based on the current oil temperature and the target hydraulic pressure, and control an output hydraulic pressure of the vehicle transmission according to the target section adjustment value, so as to respond to a coupling requirement of the vehicle clutch by using the output hydraulic pressure.

Optionally, in one embodiment of the present application, the control module 300 includes: a judging unit and a zero clearing unit.

The judging unit is used for judging whether the current oil temperature is smaller than or equal to a first preset low-temperature threshold value.

And the zero clearing unit is used for clearing the target section adjustment value if the current oil temperature is smaller than or equal to the first preset low temperature threshold value, and calculating the target section adjustment value based on the target hydraulic pressure and the current hydraulic pressure otherwise.

Optionally, in one embodiment of the present application, the control module 300 further includes: a first detection unit and a compensation unit.

The first detection unit is used for detecting whether the current oil temperature is smaller than or equal to a second preset low-temperature threshold value or not before the target section adjustment value is calculated based on the target hydraulic pressure and the current hydraulic pressure, wherein the second preset low-temperature threshold value is larger than the first preset low-temperature threshold value.

And the compensation unit is used for compensating the pressure value of the current hydraulic pressure under the condition that the current oil temperature is detected to be smaller than or equal to the second preset low-temperature threshold value, and taking the compensated pressure value as the current hydraulic pressure.

Optionally, in one embodiment of the present application, the compensation unit is specifically configured to: calculating a low-temperature pressure compensation value of the current oil way according to the current oil temperature and the current hydraulic pressure; the current hydraulic pressure is compensated based on the low temperature pressure compensation value.

Optionally, in one embodiment of the present application, the detection module 100 includes: an acquisition unit and a determination unit.

And the acquisition unit is used for acquiring the pressure fluctuation state of the current hydraulic pressure.

And the judging unit is used for judging that the vehicle gearbox is in a target voltage stabilizing working condition under the condition that the pressure fluctuation state meets the preset voltage stabilizing condition.

Optionally, in one embodiment of the present application, the control module 300 further includes: and a second detection unit and an alarm unit.

And the second detection unit is used for detecting whether the current hydraulic pressure and/or the current oil temperature meet the preset clutch working condition before controlling the output hydraulic pressure of the vehicle gearbox according to the target section adjustment value.

And the alarm unit is used for alarming based on the current hydraulic pressure and/or the current oil temperature under the condition that the current hydraulic pressure and/or the current oil temperature are detected to not meet the preset clutch working condition.

It should be noted that the foregoing explanation of the embodiment of the method for controlling pressure of the clutch is also applicable to the pressure control device of the clutch of this embodiment, and will not be repeated here.

According to the pressure control device of the clutch provided by the embodiment of the application, the current oil path section of the vehicle gearbox can be adjusted according to the actual condition of the oil temperature of the transmission so as to adjust the output hydraulic pressure, ensure the rapid combination of the clutch and improve the driving experience of a user. Therefore, the problems that in the related art, under the extremely low temperature condition, pressure hysteresis caused by great improvement of oil viscosity of the gearbox is difficult to compensate, the interval time from the emission of the clutch combining target pressure to the actual physical lamination of the clutch is increased, the quick combination of the clutch under the low temperature condition cannot be ensured, the use experience of a user is affected, the practicability is insufficient and the like are solved.

Fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present application. The vehicle may include:

memory 501, processor 502, and a computer program stored on memory 501 and executable on processor 502.

The processor 502 implements the pressure control method of the clutch provided in the above embodiment when executing a program.

Further, the vehicle further includes:

A communication interface 503 for communication between the memory 501 and the processor 502.

Memory 501 for storing a computer program executable on processor 502.

The memory 501 may include high-speed RAM memory and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.

If the memory 501, the processor 502, and the communication interface 503 are implemented independently, the communication interface 503, the memory 501, and the processor 502 may be connected to each other via a bus and perform communication with each other. The bus may be an industry standard architecture (Industry Standard Architecture, abbreviated ISA) bus, an external device interconnect (PERIPHERAL COMPONENT INTERCONNECT, abbreviated PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 5, but not only one bus or one type of bus.

Alternatively, in a specific implementation, if the memory 501, the processor 502, and the communication interface 503 are integrated on a chip, the memory 501, the processor 502, and the communication interface 503 may perform communication with each other through internal interfaces.

The processor 502 may be a central processing unit (Central Processing Unit, abbreviated as CPU), or an Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the application.

The present embodiment also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the pressure control method of the clutch as above.

The present embodiment also provides a computer program which, when executed, implements the clutch pressure control method as described above.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, "N" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.

Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or N wires, a portable computer cartridge (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.

Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. A method of controlling pressure in a clutch, comprising the steps of:

Detecting whether a vehicle gearbox is in a target voltage stabilizing working condition or not based on the current hydraulic pressure of the vehicle gearbox;

acquiring the current oil temperature of the vehicle gearbox and the target hydraulic pressure of a vehicle clutch under the condition that the vehicle gearbox is in the target pressure stabilizing working condition;

And generating a target section adjustment value of a current oil way of the vehicle gearbox based on the current oil temperature and the target hydraulic pressure, and controlling output hydraulic pressure of the vehicle gearbox according to the target section adjustment value so as to respond to the combination requirement of the vehicle clutch by utilizing the output hydraulic pressure.

2. The method of claim 1, wherein the generating a target cross-sectional adjustment value for a current oil passage of the vehicle transmission based on the current oil temperature and the target hydraulic pressure comprises:

judging whether the current oil temperature is smaller than or equal to a first preset low temperature threshold value;

and if the current oil temperature is smaller than or equal to the first preset low-temperature threshold value, resetting the target section adjustment value, otherwise, calculating the target section adjustment value based on the target hydraulic pressure and the current hydraulic pressure.

3. The method of claim 2, further comprising, prior to calculating the target cross-section adjustment value based on the target hydraulic pressure and the current hydraulic pressure:

Detecting whether the current oil temperature is smaller than or equal to a second preset low temperature threshold, wherein the second preset low temperature threshold is larger than the first preset low temperature threshold;

And under the condition that the current oil temperature is detected to be smaller than or equal to the second preset low-temperature threshold value, compensating the pressure value of the current hydraulic pressure, and taking the compensated pressure value as the current hydraulic pressure.

4. A method according to claim 3, wherein said compensating the pressure value of the current hydraulic pressure comprises:

calculating a low-temperature pressure compensation value of the current oil way according to the current oil temperature and the current hydraulic pressure;

and compensating the current hydraulic pressure based on the low-temperature pressure compensation value.

5. The method of claim 1, wherein detecting whether the vehicle transmission is in a target steady-state condition based on a current hydraulic pressure of the vehicle transmission comprises:

acquiring the pressure fluctuation state of the current hydraulic pressure;

and under the condition that the pressure fluctuation state meets the preset pressure stabilizing condition, judging that the vehicle gearbox is in a target pressure stabilizing working condition.

6. The method according to claim 1, further comprising, prior to controlling the output hydraulic pressure of the vehicle transmission according to the target section adjustment value:

Detecting whether the current hydraulic pressure and/or the current oil temperature meet preset clutch working conditions or not;

And alarming based on the current hydraulic pressure and/or the current oil temperature under the condition that the current hydraulic pressure and/or the current oil temperature are detected to not meet the preset clutch working condition.

7. A pressure control device of a clutch, comprising:

The detection module is used for detecting whether the vehicle gearbox is in a target voltage stabilizing working condition or not based on the current hydraulic pressure of the vehicle gearbox;

The acquisition module is used for acquiring the current oil temperature of the vehicle gearbox and the target hydraulic pressure of the vehicle clutch under the condition that the vehicle gearbox is in the target pressure stabilizing working condition;

And the control module is used for generating a target section adjustment value of a current oil way of the vehicle gearbox based on the current oil temperature and the target hydraulic pressure, and controlling the output hydraulic pressure of the vehicle gearbox according to the target section adjustment value so as to respond to the combination requirement of the vehicle clutch by utilizing the output hydraulic pressure.

8. The apparatus of claim 7, wherein the control module comprises:

The judging unit is used for judging whether the current oil temperature is smaller than or equal to a first preset low-temperature threshold value;

And the zero clearing unit is used for clearing the target section adjustment value if the current oil temperature is smaller than or equal to the first preset low-temperature threshold value, and calculating the target section adjustment value based on the target hydraulic pressure and the current hydraulic pressure otherwise.

9. A vehicle, characterized by comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the method of controlling pressure of a clutch as claimed in any one of claims 1 to 6.

10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program is executed by a processor for realizing the pressure control method of the clutch according to any one of claims 1-6.