CN116201888A - Method, device, equipment and storage medium for correcting oil pressure linear growth point - Google Patents
Method, device, equipment and storage medium for correcting oil pressure linear growth point Download PDFInfo
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- CN116201888A CN116201888A CN202310226612.1A CN202310226612A CN116201888A CN 116201888 A CN116201888 A CN 116201888A CN 202310226612 A CN202310226612 A CN 202310226612A CN 116201888 A CN116201888 A CN 116201888A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
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Abstract
The invention belongs to the technical field of clutches, and discloses a method, a device, equipment and a storage medium for correcting an oil pressure linear increasing point. According to the invention, the oil pressure difference integral value of the whole vehicle at the current time is obtained, when the oil pressure difference integral value is larger than the preset threshold value, the compensation value of the target oil pressure linear increasing point at the current time is obtained, and then the target oil pressure linear increasing point is corrected according to the compensation value. By acquiring the oil pressure difference integral value of the whole vehicle at the current time, when the oil pressure difference integral value is larger than a preset threshold value, the oil pressure of the target oil pressure linear increasing point in clutch oil pressure control is lower, and then the target oil pressure linear increasing point is corrected according to the compensation value of the target oil pressure linear increasing point at the current time.
Description
Technical Field
The present invention relates to the field of clutch technologies, and in particular, to a method, an apparatus, a device, and a storage medium for correcting a linear increase point of oil pressure.
Background
At present, the main stream double-clutch transmission on the market utilizes oil pressure to control torque, but the corresponding relation between clutch torque and oil pressure is quite different in a low torque section and a high torque section, and the control mode is also different, so that finding out the critical point is intuitively important for the control of the clutch, but the main stream technology at present has less treatment on the linear growth point, mostly adopts open-loop control, has limited precision, and influences the control precision and the whole vehicle performance. Therefore, how to accurately correct the linear increase point in the clutch oil pressure control becomes a problem to be solved.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a method, a device, equipment and a storage medium for correcting a linear increase point of oil pressure, which aim to solve the technical problem of accurately correcting the linear increase point in clutch oil pressure control.
In order to achieve the above object, the present invention provides a method for correcting a linear increase point of oil pressure, the method comprising the steps of:
acquiring an oil pressure difference integral value of the whole vehicle at the current moment;
when the oil pressure difference integral value is larger than a preset threshold value, acquiring a compensation value of a target oil pressure linear increasing point at the current moment;
and correcting the target oil pressure linear increasing point according to the compensation value.
Optionally, the step of acquiring the integral value of the oil pressure difference of the whole vehicle at the current time specifically includes:
acquiring an initial target oil pressure and an initial actual oil pressure of the whole vehicle at the current moment;
determining an initial oil pressure difference according to the initial target oil pressure and the initial actual oil pressure;
and determining an oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference.
Optionally, the step of determining the oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference specifically includes:
acquiring the initial monotonicity of the initial oil pressure difference;
when the rising gradient of the initial target oil pressure is larger than a preset gradient and the initial monotonicity is monotonically increased, activating integral calculation, and taking the current moment as an integral starting moment;
after integral calculation is activated, the current target oil pressure and the current actual oil pressure are obtained;
and determining an oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure.
Optionally, the step of determining the oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure specifically includes:
determining a current oil pressure difference according to the current target oil pressure and the current actual oil pressure;
acquiring the current monotonicity of the current oil pressure difference;
when the current target oil pressure reaches an oil pressure upper limit value or the current monotonicity is not monotonicity increasing, exiting integral calculation, and taking the current moment as an integral ending moment;
and determining an oil pressure difference integral value according to the integration starting time, the integration ending time, the current target oil pressure and the current ending actual oil pressure.
Optionally, before the step of obtaining the integral value of the oil pressure difference of the whole vehicle at the current time, the method further includes:
acquiring the state information of the whole vehicle;
and when the whole vehicle state information meets preset self-adaptive conditions, activating self-adaptive logic of a linear growth point, and acquiring an oil pressure difference integral value of the whole vehicle at the current moment.
Optionally, when the oil pressure difference integral value is greater than a preset threshold value, the step of obtaining the compensation value of the target oil pressure linear increasing point at the current time specifically includes:
when the oil pressure difference integral value is larger than a preset threshold value, acquiring a current count value;
acquiring the activation times of the linear growth point self-adaptive logic;
and when the activation times reach the preset times, determining a compensation value of the target oil pressure linear increasing point at the current time according to the current count value.
Optionally, the step of correcting the target oil pressure linear increasing point according to the compensation value specifically includes:
acquiring an original oil pressure value of the target oil pressure linear increasing point;
determining a correction value corresponding to the target oil pressure linear increasing point according to the original oil pressure value and the compensation value;
and correcting the target oil pressure linear increasing point according to the correction value.
In addition, in order to achieve the above object, the present invention also provides a device for correcting a linear increase point of oil pressure, the device comprising:
in addition, in order to achieve the above object, the present invention also proposes a correction apparatus of an oil pressure linear increase point, the correction apparatus of an oil pressure linear increase point comprising: the system comprises a memory, a processor and a correction program of the oil pressure linear increasing point, wherein the correction program of the oil pressure linear increasing point is stored on the memory and can be operated on the processor, and the correction program of the oil pressure linear increasing point is configured to realize the steps of the correction method of the oil pressure linear increasing point.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon a correction program of an oil pressure linear increase point, which when executed by a processor, implements the steps of the oil pressure linear increase point correction method as described above.
According to the invention, the oil pressure difference integral value of the whole vehicle at the current time is obtained, when the oil pressure difference integral value is larger than the preset threshold value, the compensation value of the target oil pressure linear increasing point at the current time is obtained, and then the target oil pressure linear increasing point is corrected according to the compensation value. According to the method, the oil pressure difference integral value of the whole vehicle at the current time is obtained, when the oil pressure difference integral value is larger than the preset threshold value, the fact that the oil pressure of the target oil pressure linear increasing point in clutch oil pressure control is low is indicated, then the target oil pressure linear increasing point is corrected according to the compensation value of the target oil pressure linear increasing point at the current time, and compared with the existing method that the linear increasing point is processed through open loop control, the method can accurately correct the linear increasing point in clutch oil pressure control, and further control characteristic robustness of the whole clutch oil pressure control process is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a device for correcting the linear increase point of oil pressure in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flow chart of a first embodiment of a method for correcting a linear increase point of oil pressure according to the present invention;
FIG. 3 is a flow chart of a second embodiment of a method for correcting a linear increase point of oil pressure according to the present invention;
FIG. 4 is a flow chart of a third embodiment of a method for correcting a linear increase point of oil pressure according to the present invention;
fig. 5 is a block diagram showing the construction of a first embodiment of the hydraulic linear increase point correction device according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a device for correcting an oil pressure linear increasing point of a hardware operation environment according to an embodiment of the present invention.
As shown in fig. 1, the correction device of the oil pressure linear increase point may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the configuration shown in fig. 1 does not constitute a limitation of the correction device for the linear point of increase of oil pressure, and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a correction program for the oil pressure linear increase point.
In the correction device of the oil pressure linear increasing point shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the hydraulic linear growth point correction device of the present invention may be disposed in the hydraulic linear growth point correction device, where the hydraulic linear growth point correction device invokes a correction program of the hydraulic linear growth point stored in the memory 1005 through the processor 1001, and executes a correction method of the hydraulic linear growth point provided by the embodiment of the present invention.
Based on the above-mentioned device for correcting the oil pressure linear increasing point, the embodiment of the invention provides a method for correcting the oil pressure linear increasing point, and referring to fig. 2, fig. 2 is a flow chart of a first embodiment of the method for correcting the oil pressure linear increasing point according to the invention.
In this embodiment, the method for correcting the oil pressure linear increasing point includes the following steps:
step S10: acquiring an oil pressure difference integral value of the whole vehicle at the current moment;
it should be noted that, the execution body of the present embodiment may be a computing service device having data processing and network communication functions, such as a microprocessor, a central processing unit, or an electronic device or a correction device for an oil pressure linear increase point, which can implement the above functions. The present embodiment and the following embodiments will be described below with reference to the device for correcting the linear hydraulic pressure increase point.
It is to be understood that the oil pressure difference integrated value refers to an integrated value formed by the oil pressure difference between the actual oil pressure at the present time and the target oil pressure during the slow engagement of the clutch.
Step S20: when the oil pressure difference integral value is larger than a preset threshold value, acquiring a compensation value of a target oil pressure linear increasing point at the current moment;
it should be noted that, the preset threshold is a preset value, and the specific value may be set according to the actual situation, which is not particularly limited in this embodiment.
It will be appreciated that during clutch oil pressure control, a clutch torque versus oil pressure relationship may be developed, on which a target oil pressure linear increase point may exist, and specifically may be determined based on a change in the curve, for example: when the slope of the curve is suddenly changed, the suddenly changed point can be used as a target oil pressure linear increasing point.
In a specific implementation, when the oil pressure difference integral value is less than or equal to a preset threshold value, the target oil pressure linear increase point is indicated to be normal. When the oil pressure difference integral value is larger than a preset threshold value, the target oil pressure linear increasing point is abnormal, the oil pressure value corresponding to the target oil pressure linear increasing point is lower, and at the moment, the compensation value of the target oil pressure linear increasing point at the current time can be obtained to compensate the original oil pressure value.
Step S30: and correcting the target oil pressure linear increasing point according to the compensation value.
It is understood that the target oil pressure linear increasing point may be corrected according to the compensation value, specifically, the target oil pressure corresponding to the target oil pressure linear increasing point may be determined according to the compensation value, and then the oil pressure corresponding to the target oil pressure linear increasing point may be adjusted to the target oil pressure to correct the target oil pressure linear increasing point.
According to the embodiment, the oil pressure difference integral value of the whole vehicle at the current time is obtained, when the oil pressure difference integral value is larger than the preset threshold value, the compensation value of the target oil pressure linear increasing point at the current time is obtained, and then the target oil pressure linear increasing point is corrected according to the compensation value. According to the embodiment, the oil pressure difference integral value of the whole vehicle at the current time is obtained, when the oil pressure difference integral value is larger than the preset threshold value, the fact that the oil pressure of the target oil pressure linear increasing point in clutch oil pressure control is low is indicated, then the target oil pressure linear increasing point is corrected according to the compensation value of the target oil pressure linear increasing point at the current time, and compared with the existing mode that the linear increasing point is processed through open loop control, the mode of the embodiment can accurately correct the linear increasing point in clutch oil pressure control, and further control characteristic robustness of the whole clutch oil pressure control process is guaranteed.
Referring to fig. 3, fig. 3 is a flowchart illustrating a second embodiment of a method for correcting a linear increase point of oil pressure according to the present invention.
Based on the first embodiment, in this embodiment, the step S10 includes:
step S101: acquiring an initial target oil pressure and an initial actual oil pressure of the whole vehicle at the current moment;
it should be noted that, the initial target oil pressure refers to the target oil pressure set before the integral calculation is activated, that is, the oil pressure to be reached by the target oil pressure linear increasing point, and the specific value may be set according to the actual situation, which is not particularly limited in this embodiment.
It should be understood that the initial actual oil pressure refers to the oil pressure at the current time at the target oil pressure linear increase point.
Step S102: determining an initial oil pressure difference according to the initial target oil pressure and the initial actual oil pressure;
it is understood that the initial oil pressure difference may be determined from the initial target oil pressure and the initial actual oil pressure, and the initial oil pressure difference may be a difference between the initial target oil pressure and the initial actual oil pressure.
Step S103: and determining an oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference.
It is to be understood that the oil pressure difference integrated value may be determined from the initial target oil pressure, the initial actual oil pressure, and the initial oil pressure difference.
Further, in order to accurately determine the oil pressure difference integrated value, in the present embodiment, the step S103 includes: acquiring the initial monotonicity of the initial oil pressure difference; when the rising gradient of the initial target oil pressure is larger than a preset gradient and the initial monotonicity is monotonically increased, activating integral calculation, and taking the current moment as an integral starting moment; after integral calculation is activated, the current target oil pressure and the current actual oil pressure are obtained; and determining an oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure.
The initial monotonicity refers to a change in the initial oil pressure difference, and may be non-monotonic, monotonically increasing, monotonically decreasing, or the like. In this embodiment, after the initial oil pressure difference is preprocessed, the preprocessing may include filtering, cleaning, and the like, the abnormal initial oil pressure difference may be deleted, and then the initial monotonicity may be determined according to all the initial oil pressure differences.
It can be understood that the initial target oil pressure set in this embodiment may increase with time, and there is an ascending gradient in the increasing process, and the preset gradient is a preset gradient, and the specific value is not specifically limited in this embodiment. When the rising gradient of the initial target oil pressure is larger than the preset gradient and the initial monotonicity is monotonically increased, integral calculation is activated, namely, calculation of an oil pressure difference integral value is started, and the current moment is taken as an integral starting moment.
It should be understood that the current target oil pressure and the current actual oil pressure are obtained after the integral calculation is activated, that is, the current target oil pressure and the current actual oil pressure at the current time can be obtained since the target oil pressure and the actual oil pressure are always changing after the integral calculation is activated, and then the oil pressure difference integral value can be determined according to the current target oil pressure and the current actual oil pressure.
Further, in order to accurately determine the oil pressure difference integral value, in this embodiment, the step of determining the oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure specifically includes: determining a current oil pressure difference according to the current target oil pressure and the current actual oil pressure; acquiring the current monotonicity of the current oil pressure difference; when the current target oil pressure reaches an oil pressure upper limit value or the current monotonicity is not monotonicity increasing, exiting integral calculation, and taking the current moment as an integral ending moment; and determining an oil pressure difference integral value according to the integration starting time, the integration ending time, the current target oil pressure and the current actual oil pressure.
It is understood that the current differential oil pressure refers to the difference between the current target oil pressure and the current actual oil pressure, and then the current monotonicity of the current differential oil pressure is obtained.
It should be understood that the oil pressure upper limit value is a preset oil pressure maximum value, the specific value can be set according to actual conditions, when the current target oil pressure reaches the oil pressure upper limit value or the current monotonicity is not monotonically increasing, the current target oil pressure is not monotonically increasing, i.e. monotonically decreasing or monotonicity is not generated, the integral calculation is stopped, i.e. the calculation of the oil pressure difference integral value is stopped, and the current moment is taken as the integral end moment.
In specific implementation, the current target oil pressure and the current actual oil pressure are obtained, and the current moment is after the integral calculation is activated and before the integral calculation exits. Then, an oil pressure difference integral value is determined according to the integration starting time, the integration ending time, the current target oil pressure and the current actual oil pressure by the following formula:
wherein P is i Represents the integral value of oil pressure difference, t 1 Indicating the integration start time, t 2 Indicating the end of integration, P target Indicating the current target oil pressure，P actual Indicating the current actual oil pressure.
According to the embodiment, the initial target oil pressure and the initial actual oil pressure of the whole vehicle at the current time are obtained, then the initial oil pressure difference is determined according to the initial target oil pressure and the initial actual oil pressure, and then the oil pressure difference integral value is determined according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference. According to the embodiment, the initial oil pressure difference can be determined according to the initial target oil pressure and the initial actual oil pressure, the initial oil pressure difference under the current moment can be determined, and then the oil pressure difference integral value can be determined according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference, so that the accurate oil pressure difference integral value can be obtained, and whether the oil pressure difference integral value is larger than a preset threshold value can be further judged.
Referring to fig. 4, fig. 4 is a flowchart illustrating a third embodiment of a method for correcting a linear increase point of oil pressure according to the present invention.
Based on the above embodiments, in this embodiment, the step S20 includes:
step S201: when the oil pressure difference integral value is larger than a preset threshold value, acquiring a current count value;
it is understood that the target oil pressure linear increasing point is always corrected, so that a plurality of oil pressure difference integral values are obtained, when the oil pressure difference integral value is greater than a preset threshold value, the count value is increased by 1, when the oil pressure difference integral value is less than or equal to the preset threshold value, the count value is decreased by 1, and a current count value is obtained after a series of count value calculations.
Further, in order to determine whether to enter the linear growth point adaptive logic, in this embodiment, before step S10, the method further includes: acquiring the state information of the whole vehicle; and when the whole vehicle state information meets preset self-adaptive conditions, activating self-adaptive logic of a linear growth point, and acquiring an oil pressure difference integral value of the whole vehicle at the current moment.
It should be noted that, the vehicle state information refers to parameter information of the vehicle during the working process, for example: clutch surface temperature, transmission oil temperature, etc., may also include other information, which is not particularly limited in this embodiment.
It should be understood that, the preset adaptive condition in this embodiment is an adaptive condition of a preset linear growth point, and may specifically be set according to practical situations, where this embodiment may be set as follows: (1) Under the working condition of stepping on the accelerator, a gear with higher use frequency is selected as much as possible; (2) In the final stage of pre-filling, the actual error of the actual oil pressure and the target oil pressure is within a certain range; (3) The clutch surface temperature and the transmission oil temperature are within preset temperatures, which may include the preset clutch surface temperature and the preset transmission oil temperature, and the specific temperature value is not particularly limited in this embodiment; (4) reporting no faults of the whole vehicle and the transmission; (5) whether the target oil pressure rising gradient meets the requirement.
In the specific implementation, after the linear growth point self-adaptive logic is activated, namely, after the linear growth point is corrected, the oil pressure difference integral value of the whole vehicle at the current moment is obtained.
Step S202: acquiring the activation times of the linear growth point self-adaptive logic;
it can be understood that the activation times refer to the times of activating the linear growth point adaptive logic, that is, the times of the whole vehicle state information meeting the preset adaptive conditions.
Step S203: and when the activation times reach the preset times, determining a compensation value of the target oil pressure linear increasing point at the current time according to the current count value.
It should be noted that, the preset times are preset times, the specific value may be set according to the actual situation, and the embodiment is not limited specifically.
It can be understood that when the activation times reach the preset times, the compensation value of the target oil pressure linear increasing point at the current time can be determined according to the current count value by the following formula, and the specific formula is as follows: offset=last period offset+a (count 1/N), where offset represents a compensation value, last period offset refers to a compensation value obtained when the linear growth point adaptive logic is activated last time, a represents a compensation step size, count1 represents a current count value, and a calculation method of count1 is as follows: when the oil pressure difference integrated value is less than or equal to the threshold value, count1 = count1-1 of the previous cycle; minimum 0; when the oil pressure difference integrated value is greater than a threshold value, the threshold value can be set according to actual conditions, wherein the count 1=count 1+1 of the previous cycle; n represents a preset number of times. The compensation step length can be obtained based on the oil temperature and the integral value, namely, the compensation step length is searched from a preset mapping relation according to the oil temperature and the oil pressure difference integral value.
In a specific implementation, the offset value when the linear growth point adaptive logic is activated for the first time may be set to 0, so the offset value when the linear growth point adaptive logic is activated for the second time is A1 x (count 1/N1), the offset value when the linear growth point adaptive logic is activated for the third time is A1 x (count 1/N1) +a2 x (count 1/N2), and so on.
Further, in order to accurately correct the target oil pressure linear increase point, in the present embodiment, the step S30 includes: acquiring an original oil pressure value of the target oil pressure linear increasing point; determining a correction value corresponding to the target oil pressure linear increasing point according to the original oil pressure value and the compensation value; and correcting the target oil pressure linear increasing point according to the correction value.
The original oil pressure value refers to the oil pressure value of the target oil pressure linear increasing point when the linear increasing point adaptive logic is activated for the first time.
It can be understood that the correction value corresponding to the target oil pressure linear increasing point can be determined according to the original oil pressure value and the compensation value by the following formula: p=p_original+offset, where P represents a correction value, p_original represents an original oil pressure value, and offset represents a compensation value.
In a specific implementation, after the correction value corresponding to the target oil pressure linear increase point is obtained, the correction value may be substituted for the original oil pressure value of the target oil pressure linear increase point.
In the embodiment, when the oil pressure difference integral value is greater than a preset threshold value, a current count value is obtained, then the activation times of the linear increment point self-adaptive logic are obtained, and when the activation times reach the preset times, the compensation value of the target oil pressure linear increment point at the current time is determined according to the current count value. When the activation times reach the preset times, the embodiment determines the compensation value of the target oil pressure linear increasing point at the current time according to the current count value, so that the correction times of the target oil pressure linear increasing point can be properly reduced, the linear increasing point in the clutch oil pressure control can be accurately corrected, and the control characteristic robustness of the whole clutch oil pressure control process is further ensured.
Referring to fig. 5, fig. 5 is a block diagram showing the structure of a first embodiment of the hydraulic linear increase point correction device according to the present invention.
As shown in fig. 5, the device for correcting the linear increase point of the oil pressure according to the embodiment of the present invention includes:
the integral value obtaining module 10 is used for obtaining an integral value of oil pressure difference of the whole vehicle at the current moment;
the compensation value determining module 20 is configured to obtain a compensation value of the target oil pressure linear increase point at the current time when the oil pressure difference integral value is greater than a preset threshold value;
and the linear point correction module 30 is used for correcting the target oil pressure linear increasing point according to the compensation value.
According to the embodiment, the oil pressure difference integral value of the whole vehicle at the current time is obtained, when the oil pressure difference integral value is larger than the preset threshold value, the compensation value of the target oil pressure linear increasing point at the current time is obtained, and then the target oil pressure linear increasing point is corrected according to the compensation value. According to the embodiment, the oil pressure difference integral value of the whole vehicle at the current time is obtained, when the oil pressure difference integral value is larger than the preset threshold value, the fact that the oil pressure of the target oil pressure linear increasing point in clutch oil pressure control is low is indicated, then the target oil pressure linear increasing point is corrected according to the compensation value of the target oil pressure linear increasing point at the current time, and compared with the existing mode that the linear increasing point is processed through open loop control, the mode of the embodiment can accurately correct the linear increasing point in clutch oil pressure control, and further control characteristic robustness of the whole clutch oil pressure control process is guaranteed.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
In addition, technical details not described in detail in the present embodiment may refer to the method for correcting the linear increase point of the oil pressure provided in any embodiment of the present invention, which is not described herein.
Based on the first embodiment of the hydraulic linear increase point correction device of the present invention, a second embodiment of the hydraulic linear increase point correction device of the present invention is proposed.
In this embodiment, the integral value obtaining module 10 is further configured to obtain an initial target oil pressure and an initial actual oil pressure of the whole vehicle at a current time; determining an initial oil pressure difference according to the initial target oil pressure and the initial actual oil pressure; and determining an oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference.
Further, the integral value obtaining module 10 is further configured to obtain an initial monotonicity of the initial differential oil pressure; when the rising gradient of the initial target oil pressure is larger than a preset gradient and the initial monotonicity is monotonically increased, activating integral calculation, and taking the current moment as an integral starting moment; after integral calculation is activated, the current target oil pressure and the current actual oil pressure are obtained; and determining an oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure.
Further, the integral value obtaining module 10 is further configured to determine a current oil pressure difference according to the current target oil pressure and the current actual oil pressure; acquiring the current monotonicity of the current oil pressure difference; when the current target oil pressure reaches an oil pressure upper limit value or the current monotonicity is not monotonicity increasing, exiting integral calculation, and taking the current moment as an integral ending moment; and determining an oil pressure difference integral value according to the integration starting time, the integration ending time, the current target oil pressure and the current actual oil pressure.
Further, the compensation value determining module 20 is further configured to obtain vehicle status information; and when the whole vehicle state information meets preset self-adaptive conditions, activating self-adaptive logic of a linear growth point, and acquiring an oil pressure difference integral value of the whole vehicle at the current moment.
Further, the compensation value determining module 20 is further configured to obtain a current count value when the oil pressure difference integral value is greater than a preset threshold value; acquiring the activation times of the linear growth point self-adaptive logic; and when the activation times reach the preset times, determining a compensation value of the target oil pressure linear increasing point at the current time according to the current count value.
Further, the linear point correction module 30 is further configured to obtain an original oil pressure value of the target oil pressure linear increasing point; determining a correction value corresponding to the target oil pressure linear increasing point according to the original oil pressure value and the compensation value; and correcting the target oil pressure linear increasing point according to the correction value.
Other embodiments or specific implementation manners of the device for correcting the linear increase point of the oil pressure of the present invention can refer to the above method embodiments, and will not be described herein.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores a correction program of the oil pressure linear increasing point, and the correction program of the oil pressure linear increasing point realizes the steps of the correction method of the oil pressure linear increasing point when being executed by a processor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. read-only memory/random-access memory, magnetic disk, optical disk), comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. The method for correcting the oil pressure linear increasing point is characterized by comprising the following steps of:
acquiring an oil pressure difference integral value of the whole vehicle at the current moment;
when the oil pressure difference integral value is larger than a preset threshold value, acquiring a compensation value of a target oil pressure linear increasing point at the current moment;
and correcting the target oil pressure linear increasing point according to the compensation value.
2. The method for correcting the linear increase point of the oil pressure according to claim 1, wherein the step of obtaining the integral value of the oil pressure difference of the whole vehicle at the current time comprises the following steps:
acquiring an initial target oil pressure and an initial actual oil pressure of the whole vehicle at the current moment;
determining an initial oil pressure difference according to the initial target oil pressure and the initial actual oil pressure;
and determining an oil pressure difference integral value according to the initial target oil pressure, the initial actual oil pressure and the initial oil pressure difference.
3. The method for correcting a linear increase point of oil pressure according to claim 2, wherein the step of determining an oil pressure difference integrated value based on the initial target oil pressure, the initial actual oil pressure, and the initial oil pressure difference, comprises:
acquiring the initial monotonicity of the initial oil pressure difference;
when the rising gradient of the initial target oil pressure is larger than a preset gradient and the initial monotonicity is monotonically increased, activating integral calculation, and taking the current moment as an integral starting moment;
after integral calculation is activated, the current target oil pressure and the current actual oil pressure are obtained;
and determining an oil pressure difference integral value according to the current target oil pressure and the current actual oil pressure.
4. The method for correcting a linear increase point of oil pressure according to claim 3, wherein said step of determining an oil pressure difference integrated value based on said current target oil pressure and said current actual oil pressure comprises:
determining a current oil pressure difference according to the current target oil pressure and the current actual oil pressure;
acquiring the current monotonicity of the current oil pressure difference;
when the current target oil pressure reaches an oil pressure upper limit value or the current monotonicity is not monotonicity increasing, exiting integral calculation, and taking the current moment as an integral ending moment;
and determining an oil pressure difference integral value according to the integration starting time, the integration ending time, the current target oil pressure and the current actual oil pressure.
5. The method for correcting a linear increase point of oil pressure according to any one of claims 1 to 4, wherein before the step of obtaining the integral value of the oil pressure difference of the whole vehicle at the present time, further comprising:
acquiring the state information of the whole vehicle;
and when the whole vehicle state information meets preset self-adaptive conditions, activating self-adaptive logic of a linear growth point, and acquiring an oil pressure difference integral value of the whole vehicle at the current moment.
6. The method for correcting a linear increase point of oil pressure according to claim 5, wherein the step of acquiring the compensation value of the target linear increase point of oil pressure at the current time when the integrated value of oil pressure difference is greater than a preset threshold value comprises:
when the oil pressure difference integral value is larger than a preset threshold value, acquiring a current count value;
acquiring the activation times of the linear growth point self-adaptive logic;
and when the activation times reach the preset times, determining a compensation value of the target oil pressure linear increasing point at the current time according to the current count value.
7. The method for correcting a linear increase point of oil pressure according to claim 6, wherein said step of correcting said target linear increase point of oil pressure based on said compensation value comprises:
acquiring an original oil pressure value of the target oil pressure linear increasing point;
determining a correction value corresponding to the target oil pressure linear increasing point according to the original oil pressure value and the compensation value;
and correcting the target oil pressure linear increasing point according to the correction value.
8. A correction device for a linear increase point of oil pressure, characterized by comprising:
the integral value acquisition module is used for acquiring an oil pressure difference integral value of the whole vehicle at the current moment;
the compensation value determining module is used for obtaining a compensation value of the target oil pressure linear increasing point at the current moment when the oil pressure difference integral value is larger than a preset threshold value;
and the linear point correction module is used for correcting the target oil pressure linear increasing point according to the compensation value.
9. An apparatus for correcting a linear increase point of oil pressure, the apparatus comprising: a memory, a processor and a correction program for the linear point of increase of oil pressure stored on said memory and operable on said processor, said correction program for the linear point of increase of oil pressure being configured to implement the steps of the method for correcting the linear point of increase of oil pressure as claimed in any one of claims 1 to 7.
10. A storage medium, wherein a correction program of the oil pressure linear increase point is stored on the storage medium, which when executed by a processor, implements the steps of the oil pressure linear increase point correction method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310226612.1A CN116201888A (en) | 2023-03-09 | 2023-03-09 | Method, device, equipment and storage medium for correcting oil pressure linear growth point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310226612.1A CN116201888A (en) | 2023-03-09 | 2023-03-09 | Method, device, equipment and storage medium for correcting oil pressure linear growth point |
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| Publication Number | Publication Date |
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| CN116201888A true CN116201888A (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310226612.1A Pending CN116201888A (en) | 2023-03-09 | 2023-03-09 | Method, device, equipment and storage medium for correcting oil pressure linear growth point |
Country Status (1)
| Country | Link |
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| CN (1) | CN116201888A (en) |
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2023
- 2023-03-09 CN CN202310226612.1A patent/CN116201888A/en active Pending
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