CN115111289B - Tooth clutch control method and device, electronic equipment and storage medium - Google Patents
Tooth clutch control method and device, electronic equipment and storage medium Download PDFInfo
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- CN115111289B CN115111289B CN202210759930.XA CN202210759930A CN115111289B CN 115111289 B CN115111289 B CN 115111289B CN 202210759930 A CN202210759930 A CN 202210759930A CN 115111289 B CN115111289 B CN 115111289B
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 description 19
- 238000004891 communication Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
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Classifications
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/064—Control of electrically or electromagnetically actuated clutches
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D11/00—Clutches in which the members have interengaging parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The embodiment of the application provides a tooth clutch control method, a tooth clutch control device, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring the state of the tooth clutch at the next moment; when the state of the tooth clutch at the next moment is engagement, acquiring the actual rotation speed difference of the driving end and the driven end; acquiring an actual phase difference between the driving end and the driven end according to the actual rotation speed difference; and controlling the tooth clutch to be engaged according to the actual phase difference. The method can control the tooth clutch to be engaged at proper time, reduce the probability of tooth striking of the tooth clutch, reduce redundant adjustment time and avoid overlarge impact of the tooth clutch.
Description
Technical Field
The application relates to the technical field of electric automobiles, in particular to a tooth clutch control method, a tooth clutch control device, electronic equipment and a storage medium.
Background
In the technical field of pure electric vehicle driving, vehicle driving mainly depends on an electric driving force system, and a motor of the electric driving force system is mainly a permanent magnet synchronous motor. The permanent magnet synchronous motor causes the economic efficiency of the four-wheel drive vehicle to be reduced due to the existence of back electromotive force. To solve this problem, tooth clutches for electric drive systems have been developed. However, the common tooth clutch has the defects of tooth beating, long engagement and disengagement time, large impact and the like.
Disclosure of Invention
The embodiment of the application aims to provide a tooth clutch control method, a tooth clutch control device, electronic equipment and a storage medium, which can solve the problems of tooth beating and overlarge impact existing in the process of connection and disconnection of a tooth clutch.
In a first aspect, an embodiment of the present application provides a method for controlling a tooth clutch, including:
acquiring the state of the tooth clutch at the next moment;
when the state of the tooth clutch at the next moment is engagement, acquiring the actual rotation speed difference of the driving end and the driven end;
Judging whether to acquire the actual phase difference of the driving end and the driven end according to the actual rotation speed difference;
if so, acquiring the actual phase difference, and controlling the tooth clutch to be engaged according to the actual phase difference.
In the implementation process, compared with the technical means that the tooth-shaped clutch is controlled to be engaged by the rotation speed difference meeting a certain preset condition in the prior art, the embodiment of the application is used for controlling the tooth-shaped clutch to be engaged according to the actual rotation speed difference and the actual phase difference. Because communication delay, torque response delay, inter-tooth clearance and error, when the actual rotation speed difference meets the preset condition, the time for controlling the engagement of the tooth-shaped clutch is not necessarily needed, so that the tooth-shaped clutch is likely to have the problems of tooth striking and overlarge impact, redundant time is further needed for adjusting the tooth-shaped clutch, and the engagement time of the tooth-shaped clutch is increased. The actual rotation speed difference and the actual phase difference are combined to connect the tooth-shaped clutch, so that the tooth-shaped clutch can be controlled to connect at proper time, the probability of tooth striking of the tooth-shaped clutch is reduced, the redundant adjustment time is reduced, and the tooth-shaped clutch is prevented from being excessively impacted.
Further, the step of determining whether to obtain the actual phase difference between the driving end and the driven end according to the actual rotation speed difference includes:
And when the actual rotation speed difference is smaller than a first preset value, acquiring the actual phase difference between the driving end and the driven end.
In the implementation process, the actual rotation speed difference is taken as the first acquisition parameter, and whether the tooth clutch needs to be engaged at the moment can be primarily judged according to the actual rotation speed difference. Only when the actual rotation speed difference is smaller than a first preset threshold value, the actual phase difference between the driving end and the driven end is obtained, the frequency and time for obtaining parameters can be reduced, and the efficiency of the control method is further improved.
Further, the step of controlling the tooth clutch to engage according to the actual phase difference includes:
acquiring signal delay time of a controller and the tooth clutch;
Acquiring a second preset value according to the signal delay time;
And when the actual phase difference is smaller than the second preset value, controlling the tooth clutch to be engaged.
In the implementation process, the actual phase difference is determined by the signal delay time of the controller and the tooth clutch, so that a second preset value is obtained according to the signal delay time of the controller and the tooth clutch; when the actual phase difference is smaller than the second preset value, the tooth clutch is controlled to be engaged, and the engagement time of the tooth clutch takes signal delay into consideration, so that the tooth clutch can be ensured to be fully engaged.
Further, the step of controlling the tooth clutch to engage includes:
controlling the tooth clutch to start an engaging action;
Acquiring the axial displacement of the tooth clutch and the actual rotation speed difference;
and when the axial displacement and the actual rotation speed difference meet a first preset condition, controlling the tooth clutch to stop the engagement action.
In the implementation process, the engagement process of the tooth-shaped clutches is controlled step by step, so that gears among the tooth-shaped clutches can be tightly embedded.
Further, the method further comprises:
when the state of the tooth clutch at the next moment is disconnected, determining the torque of the driving end;
and when the torque is smaller than a third preset value, the tooth clutch is controlled to be disconnected.
In the implementation process, the moment of disconnection is judged according to the torque of the driving end, and the torque can accurately reflect the displacement degree of the clutch, so that the moment of disconnection of the tooth-shaped clutch is proper, the condition of generating teeth is reduced, the adjustment time is shortened, and the tooth-shaped clutch is disconnected rapidly.
Further, the step of acquiring the state of the tooth clutch at the next moment includes:
Acquiring the comprehensive efficiency of the front electric driving force system and the comprehensive efficiency of the rear electric driving force system;
When the comprehensive efficiency of the front electric driving force system is larger than the upper limit value of the efficiency interval corresponding to the front electric driving force system, judging that the state of the tooth clutch at the next moment is engagement;
when the comprehensive efficiency of the front electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the front electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected;
Or alternatively
When the comprehensive efficiency of the rear electric driving force system is larger than the upper limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is engagement;
And when the comprehensive efficiency of the rear electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected.
In the implementation process, the efficiency of the electric drive system is obviously changed in consideration of different state transitions, so that the state of the tooth clutch at the next moment can be quickly determined according to the embodiment.
Further, the step of controlling the tooth clutch to engage includes:
And sending an axial displacement control curve signal of the tooth clutch to a driven end so that the driven end drives the tooth clutch to be engaged.
In the realization process, the engagement impact of the tooth clutch is further reduced, and smoothness is realized.
In a second aspect, an embodiment of the present application provides a tooth clutch control device including:
the state acquisition module is used for acquiring the state of the tooth clutch at the next moment;
the rotating speed difference acquisition module is used for acquiring the actual rotating speed difference of the driving end and the driven end when the state of the tooth clutch at the next moment is engagement;
the phase difference acquisition module is used for acquiring the actual phase difference and judging whether to acquire the actual phase difference of the driving end and the driven end according to the actual rotation speed difference;
and the control module is used for controlling the tooth clutch to be engaged according to the actual phase difference.
In a third aspect, an electronic device provided in an embodiment of the present application includes: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any one of the first aspects when the computer program is executed.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions are stored, which when executed on a computer, cause the computer to perform the method according to any one of the first aspects.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for controlling a tooth clutch according to an embodiment of the present application;
FIG. 2 is a block diagram of a method and apparatus for controlling a tooth clutch according to an embodiment of the present application;
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Example 1
Referring to fig. 1, an embodiment of the present application provides a tooth clutch control method, including:
s1: acquiring the state of the tooth clutch at the next moment;
it will be appreciated that the tooth clutch is in the disengaged state at this point.
S2: when the state of the tooth clutch at the next moment is engagement, acquiring the actual rotation speed difference of the driving end and the driven end;
In one possible embodiment, the controller sends out a speed control. And the command takes the rotating speed of the driven gear end as a speed regulation target, and drives the motor to enter a rotating speed control mode.
S3: judging whether to acquire the actual phase difference of the driving end and the driven end according to the actual rotation speed difference;
In a possible embodiment, the driving end and the driven end are provided with rotational speed sensors, from which values the actual rotational speed difference of the driving end and the driven end can be determined.
S4: if so, acquiring the actual phase difference, and controlling the tooth clutch to be engaged according to the actual phase difference.
In the above embodiment, the driving end and the driven end in different automobile systems are different devices, and take an electric driving system as an example, the driving end is a driving motor, the rotation speed is determined by means of a rotary transformer, the driven end is an output shaft connected with wheels, and the rotation speed of the driven end gear is determined by means of an output end rotation speed sensor. If the driven end contains a multi-stage gear, the rotating speed is converted to the primary rotating speed of the driving end according to the speed ratio.
In the implementation process, compared with the technical means that the tooth-shaped clutch is controlled to be engaged by the rotation speed difference meeting a certain preset condition in the prior art, the embodiment of the application is used for controlling the tooth-shaped clutch to be engaged according to the actual rotation speed difference and the actual phase difference. Because communication delay, torque response delay, inter-tooth clearance and error, when the actual rotation speed difference meets the preset condition, the time for controlling the engagement of the tooth-shaped clutch is not necessarily needed, so that the tooth-shaped clutch is likely to have the problems of tooth striking and overlarge impact, redundant time is further needed for adjusting the tooth-shaped clutch, and the engagement time of the tooth-shaped clutch is increased. The actual rotation speed difference and the actual phase difference are combined to connect the tooth-shaped clutch, so that the tooth-shaped clutch can be controlled to connect at proper time, the probability of tooth striking of the tooth-shaped clutch is reduced, the redundant adjustment time is reduced, and the tooth-shaped clutch is prevented from being excessively impacted.
In one possible embodiment, S3 includes:
And when the actual rotation speed difference is smaller than a first preset value, acquiring the actual phase difference between the driving end and the driven end.
Because of communication delay, torque response delay, inter-tooth gaps and errors in the system, compensation quantity needs to be given to obtain the phase difference through the sensor, and the compensation quantity is taken as the final actual phase difference.
In the above implementation, the first preset value is calibrated according to different electric driving systems.
In the implementation process, the actual rotation speed difference is taken as the first acquisition parameter, and whether the tooth clutch needs to be engaged at the moment can be primarily judged according to the actual rotation speed difference. Only when the actual rotation speed difference is smaller than a first preset threshold value, the actual phase difference between the driving end and the driven end is obtained, the frequency and time for obtaining parameters can be reduced, and the efficiency of the control method is further improved.
In one possible embodiment, S4 includes:
acquiring signal delay time of a controller and the tooth clutch;
Acquiring a second preset value according to the signal delay time;
And when the actual phase difference is smaller than the second preset value, controlling the tooth clutch to be engaged.
It should be noted that the second preset value is calibrated according to different electric driving systems.
In the implementation process, the actual phase difference is determined by the signal delay time of the controller and the tooth clutch, so that a second preset value is obtained according to the signal delay time of the controller and the tooth clutch; when the actual phase difference is smaller than the second preset value, the tooth clutch is controlled to be engaged, and the engagement time of the tooth clutch takes signal delay into consideration, so that the tooth clutch can be ensured to be fully engaged.
In one possible embodiment, the method further comprises:
When the state of the tooth clutch at the next moment is disconnected;
It will be appreciated that the tooth clutch is in the engaged state at this point.
Determining the torque of the driving end;
The torque may be calculated from power and rotational speed.
And when the torque is smaller than a third preset value, the tooth clutch is controlled to be disconnected.
In the implementation process, the moment of disconnection is judged according to the torque of the driving end, and the torque can accurately reflect the displacement degree of the clutch, so that the moment of disconnection of the tooth-shaped clutch is proper, the condition of generating teeth is reduced, the adjustment time is shortened, and the tooth-shaped clutch is disconnected rapidly.
In one possible embodiment, S1 includes:
Acquiring the comprehensive efficiency of the front electric driving force system and the comprehensive efficiency of the rear electric driving force system;
When the comprehensive efficiency of the front electric driving force system is larger than the upper limit value of the efficiency interval corresponding to the front electric driving force system, judging that the state of the tooth clutch at the next moment is engagement;
when the comprehensive efficiency of the front electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the front electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected;
Or alternatively
When the comprehensive efficiency of the rear electric driving force system is larger than the upper limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is engagement;
And when the comprehensive efficiency of the rear electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected.
In the implementation process, the efficiency of the electric drive system is obviously changed in consideration of different state transitions, so that the state of the tooth clutch at the next moment can be quickly determined according to the embodiment.
Further, the step of controlling the tooth clutch to engage includes:
And sending an axial displacement control curve signal of the tooth clutch to a driven end so that the driven end drives the tooth clutch to be engaged.
In the realization process, the engagement impact of the tooth clutch is further reduced, and smoothness is realized.
Further, the step of controlling the tooth clutch to be disconnected includes:
and sending an axial displacement control curve signal of the tooth clutch to a driven end so that the driven end drives the tooth clutch to be disconnected.
In the realization process, the engagement impact of the tooth clutch is further reduced, and smoothness is realized.
In one possible embodiment, S1 includes: and acquiring the state of the tooth clutch at the next moment according to the driving mode and the speed of the vehicle.
Preferably, the state of the tooth clutch at the next moment is acquired from the motor speed and torque.
Example 2
Referring to fig. 2, an embodiment of the present application provides a tooth clutch control device including:
The state acquisition module 1 is used for acquiring the state of the tooth clutch at the next moment;
The rotating speed difference acquisition module 2 is used for acquiring the actual rotating speed difference between the driving end and the driven end when the state of the tooth clutch at the next moment is engagement;
The phase difference acquisition module 3 is used for judging whether to acquire the actual phase difference between the driving end and the driven end according to the actual rotation speed difference;
and the control module 4 is used for acquiring the actual phase difference and controlling the tooth clutch to be engaged according to the actual phase difference.
In a possible embodiment, the phase difference obtaining module 3 is further configured to obtain an actual phase difference between the driving end and the driven end when the actual rotational speed difference is smaller than a first preset value.
In one possible embodiment, the control module 4 is further configured to obtain a signal delay time of the controller and the tooth clutch; acquiring a second preset value according to the signal delay time; and when the actual phase difference is smaller than the second preset value, controlling the tooth clutch to be engaged.
In a possible embodiment, the control module 4 is also used for controlling the tooth clutch to start an engagement action; acquiring the axial displacement of the tooth clutch and the actual rotation speed difference; and when the axial displacement and the actual rotation speed difference meet a first preset condition, controlling the tooth clutch to stop the engagement action.
In one possible embodiment, the apparatus further comprises: the disconnection module is used for determining the torque of the driving end when the state of the tooth clutch at the next moment is disconnection; and when the torque is smaller than a third preset value, the tooth clutch is controlled to be disconnected.
In one possible embodiment, the state acquisition module 1 is configured to acquire the comprehensive efficiency of the front electric drive system and the comprehensive efficiency of the rear electric drive system; when the comprehensive efficiency of the front electric driving force system is larger than the upper limit value of the efficiency interval corresponding to the front electric driving force system, judging that the state of the tooth clutch at the next moment is engagement; when the comprehensive efficiency of the front electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the front electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected; or when the comprehensive efficiency of the rear electric driving force system is larger than the upper limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is engagement; and when the comprehensive efficiency of the rear electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected.
In one possible embodiment, the control module 4 is further configured to send an axial displacement control curve signal of the tooth clutch to the driven end, so that the driven end drives the tooth clutch to engage.
The application further provides an electronic device, please refer to fig. 3, and fig. 3 is a block diagram of an electronic device according to an embodiment of the application. The electronic device may include a processor 31, a communication interface 32, a memory 33, and at least one communication bus 34. Wherein the communication bus 34 is used to enable direct connection communication of these components. The communication interface 32 of the electronic device in the embodiment of the present application is used for performing signaling or data communication with other node devices. The processor 31 may be an integrated circuit chip with signal processing capabilities.
The processor 31 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a Digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor 510 may be any conventional processor or the like.
The Memory 330 may be, but is not limited to, random access Memory (Random Access Memory, RAM), read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), etc. The memory 33 has stored therein computer readable instructions which, when executed by the processor 31, enable the electronic device to perform the steps involved in the above-described method embodiments.
Optionally, the electronic device may further include a storage controller, an input-output unit.
The memory 33, the memory controller, the processor 31, the peripheral interface, and the input/output unit are electrically connected directly or indirectly to each other, so as to realize data transmission or interaction. For example, the components may be electrically coupled to each other via one or more communication buses 34. The processor 31 is arranged to execute executable modules stored in a memory 33, such as software functional modules or computer programs comprised by the electronic device.
The input-output unit is used for providing the user with the creation task and creating the starting selectable period or the preset execution time for the task so as to realize the interaction between the user and the server. The input/output unit may be, but is not limited to, a mouse, a keyboard, and the like.
It will be appreciated that the configuration shown in fig. 3 is merely illustrative, and that the electronic device may also include more or fewer components than shown in fig. 3, or have a different configuration than shown in fig. 3. The components shown in fig. 3 may be implemented in hardware, software, or a combination thereof.
The embodiment of the application also provides a computer readable storage medium, on which instructions are stored, and when the instructions are executed on a computer, the computer program is executed by a processor to implement the method described in the method embodiment, so that repetition is avoided, and no further description is provided herein.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, of the flowcharts and block diagrams in the figures that illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. 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 apparatus that comprises the element.
Claims (9)
1. A tooth clutch control method, characterized by comprising:
acquiring the state of the tooth clutch at the next moment;
when the state of the tooth clutch at the next moment is engagement, acquiring the actual rotation speed difference of the driving end and the driven end;
Judging whether to acquire the actual phase difference of the driving end and the driven end according to the actual rotation speed difference;
If yes, acquiring the actual phase difference, and controlling the tooth clutch to be engaged according to the actual phase difference;
the step of acquiring the state of the tooth clutch at the next moment comprises the following steps:
Acquiring the comprehensive efficiency of the front electric driving force system and the comprehensive efficiency of the rear electric driving force system;
When the comprehensive efficiency of the front electric driving force system is larger than the upper limit value of the efficiency interval corresponding to the front electric driving force system, judging that the state of the tooth clutch at the next moment is engagement;
when the comprehensive efficiency of the front electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the front electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected;
Or alternatively
When the comprehensive efficiency of the rear electric driving force system is larger than the upper limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is engagement;
And when the comprehensive efficiency of the rear electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected.
2. The tooth clutch control method according to claim 1, characterized in that the step of judging whether to acquire the actual phase difference of the driving end and the driven end based on the actual rotation speed difference includes:
And when the actual rotation speed difference is smaller than a first preset value, acquiring the actual phase difference between the driving end and the driven end.
3. The tooth clutch control method according to claim 2, characterized in that the step of controlling the tooth clutch to be engaged according to the actual phase difference includes:
acquiring signal delay time of a controller and the tooth clutch;
Acquiring a second preset value according to the signal delay time;
And when the actual phase difference is smaller than the second preset value, controlling the tooth clutch to be engaged.
4. The tooth clutch control method according to claim 2, characterized in that the step of controlling engagement of the tooth clutch includes:
controlling the tooth clutch to start an engaging action;
Acquiring the axial displacement of the tooth clutch and the actual rotation speed difference;
and when the axial displacement and the actual rotation speed difference meet a first preset condition, controlling the tooth clutch to stop the engagement action.
5. The tooth clutch control method according to claim 1, characterized in that the method further comprises:
When the state of the tooth clutch at the next moment is off,
Determining the torque of the driving end;
and when the torque is smaller than a third preset value, the tooth clutch is controlled to be disconnected.
6. The tooth clutch control method as claimed in claim 3, wherein said step of controlling engagement of said tooth clutch includes:
And sending an axial displacement control curve signal of the tooth clutch to a driven end so that the driven end drives the tooth clutch to be engaged.
7. A tooth clutch control device, characterized by comprising:
the state acquisition module is used for acquiring the state of the tooth clutch at the next moment;
the rotating speed difference acquisition module is used for acquiring the actual rotating speed difference of the driving end and the driven end when the state of the tooth clutch at the next moment is engagement;
the phase difference acquisition module is used for judging whether to acquire the actual phase difference between the driving end and the driven end according to the actual rotation speed difference;
The control module is used for acquiring the actual phase difference and controlling the tooth clutch to be engaged according to the actual phase difference;
The state acquisition module is also used for acquiring the comprehensive efficiency of the front electric driving force system and the comprehensive efficiency of the rear electric driving force system; when the comprehensive efficiency of the front electric driving force system is larger than the upper limit value of the efficiency interval corresponding to the front electric driving force system, judging that the state of the tooth clutch at the next moment is engagement; when the comprehensive efficiency of the front electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the front electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected; or when the comprehensive efficiency of the rear electric driving force system is larger than the upper limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is engagement; and when the comprehensive efficiency of the rear electric driving force system is smaller than the lower limit value of the corresponding efficiency interval of the rear electric driving force system, judging that the state of the tooth clutch at the next moment is disconnected.
8. An electronic device, comprising: memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any one of claims 1-6 when the computer program is executed.
9. A computer readable storage medium having instructions stored thereon which, when run on a computer, cause the computer to perform the method of any of claims 1-6.
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