CN116857355A - Control method and device of intermediate shaft brake and electronic equipment - Google Patents

Control method and device of intermediate shaft brake and electronic equipment Download PDF

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Publication number
CN116857355A
CN116857355A CN202310790399.7A CN202310790399A CN116857355A CN 116857355 A CN116857355 A CN 116857355A CN 202310790399 A CN202310790399 A CN 202310790399A CN 116857355 A CN116857355 A CN 116857355A
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CN
China
Prior art keywords
intermediate shaft
determining
energy
gear
current
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310790399.7A
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Chinese (zh)
Inventor
葛乃良
侯建军
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Filing date
Publication date
Application filed by Weichai Power Co Ltd filed Critical Weichai Power Co Ltd
Priority to CN202310790399.7A priority Critical patent/CN116857355A/en
Publication of CN116857355A publication Critical patent/CN116857355A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0006—Electronic control units for transmission control, e.g. connectors, casings or circuit boards
    • 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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • 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
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F16H63/50—Signals to an engine or motor
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • 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
    • F16D2123/00—Multiple operation forces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The application discloses a control method and device of an intermediate shaft brake and electronic equipment, wherein the method comprises the following steps: a gear shifting instruction is received; when the target gear is larger than the current gear, determining the final energy of the intermediate shaft when the gear shifting braking is completed; according to a pre-configured corresponding relation between the engine oil temperature and the resistance power, determining first energy consumed by the resistance brake corresponding to the current engine oil temperature on the intermediate shaft; determining second energy of the intermediate shaft when the active braking is completed according to the final energy and the first energy; an active braking rotational speed is determined based on the second energy, and the intermediate shaft brake is controlled to apply braking based on the active braking rotational speed. Therefore, the problem that the gear is failed due to mismatching of the rotating speeds of the intermediate shaft and the output shaft when the intermediate shaft brake controls the intermediate shaft to reduce the speed is solved.

Description

Control method and device of intermediate shaft brake and electronic equipment
Technical Field
The application relates to the technical field of transmission speed change system control, in particular to a control method and device of a middle shaft brake and electronic equipment.
Background
The drive train of an electric gearbox is generally: input shaft- > intermediate shaft- > output shaft. The input shaft is connected with the output of the engine through a clutch, and the output shaft is directly connected with wheels through a rear axle. The intermediate shaft is used for transmitting power from the input shaft to the output shaft, and is directly connected with the input shaft through a gear and is connected with the output shaft through a gear shifting gear. An electro-mechanical automatic transmission (automated mechanical transmission, AMT) shift actuator is disposed between the intermediate shaft and the output shaft. When shifting gears, the meshing sequence of the output shaft and the intermediate shaft gear is changed, namely the speed ratio of the gearbox is changed, and the speed regulation effect is achieved.
AMTs typically provide a countershaft brake arrangement for braking and decelerating the countershaft. The specific application scene is as follows: when the gear is up-shifted, the speed ratio of the intermediate shaft to the output shaft is changed from large to small, and the intermediate shaft needs to be reduced according to the target gear speed ratio because the rotation speed of the output shaft cannot be suddenly changed, and the intermediate shaft brake can enable the intermediate shaft to quickly reach the target rotation speed. Typically, in addition to the intermediate shaft brake, the intermediate shaft drive is subject to other resistances related to the temperature within the gearbox (mainly oil temperature). Under different temperatures, the internal resistance of the intermediate shaft is greatly changed, and the current general control method of the intermediate shaft generally adopts a braking mode with temperature correction. The temperature correction coefficient is mainly obtained by on-site calibration. In the application scene with severe temperature change, the characteristics of large error, low reliability and poor robustness are often shown, and the rotating speeds of the intermediate shaft transmission mechanism and the output shaft are not matched, so that the gear is in failure.
Disclosure of Invention
The application aims to provide a control method and device of an intermediate shaft brake and electronic equipment. The device is used for solving the problem that when the intermediate shaft brake controls the intermediate shaft to slow down, the rotation speed of the intermediate shaft is not matched with that of the output shaft, so that the gear is in failure.
In a first aspect, an embodiment of the present application provides a method for controlling an intermediate shaft brake, the method including:
responsive to an instruction to shift from a current gear to a target gear;
when the target gear is larger than the current gear, determining the final energy of the intermediate shaft when gear shifting braking is completed according to the target rotating speed of the intermediate shaft corresponding to the target gear;
determining the current resistance power corresponding to the current engine oil temperature according to the corresponding relation between the pre-configured engine oil temperature and the resistance power;
determining a first energy consumed by a resistance brake on the intermediate shaft according to the current resistance power;
determining second energy of the intermediate shaft when active braking is completed according to the final energy and the first energy;
and determining an active braking rotation speed based on the second energy, and controlling the intermediate shaft brake to brake based on the active braking rotation speed.
In some possible embodiments, the determining, according to the target rotational speed of the intermediate shaft corresponding to the target gear, the final energy of the intermediate shaft when the gear shifting braking is completed includes:
determining a target rotating speed of the intermediate shaft according to the rotating speed of the output shaft and a target speed ratio, wherein the target speed ratio is the ratio of the rotating speed of the gear of the intermediate shaft to the rotating speed of the gear of the output shaft when the gear is the target gear;
and determining the final energy of the intermediate shaft when gear shifting braking is completed according to the target rotating speed and the rotational inertia of the intermediate shaft.
In some possible embodiments, the resistance includes a countershaft sliding friction, a countershaft churning force.
In some possible embodiments, the determining the current resistance power corresponding to the current oil temperature according to the pre-configured correspondence between the oil temperature and the resistance power includes:
determining the current intermediate shaft sliding friction power corresponding to the current engine oil temperature according to a first corresponding relation between the pre-configured engine oil temperature and the intermediate shaft sliding friction power;
determining the current intermediate shaft oil stirring power corresponding to the current engine oil temperature according to a second corresponding relation between the pre-configured engine oil temperature and the intermediate shaft oil stirring power;
and determining the current resistance power through the current intermediate shaft sliding friction power and the current intermediate shaft oil stirring power.
In some possible embodiments, the determining the first energy expended by the resistance brake on the intermediate shaft based on the current resistance power includes:
and obtaining the first energy consumed by the resistance braking on the intermediate shaft through the integration of the current resistance power in the time of the resistance braking.
In some possible embodiments, the determining the second energy of the intermediate shaft upon completion of the active braking according to the final energy and the first energy includes:
and determining the second energy of the intermediate shaft when the active braking is completed through the sum of the final energy and the first energy.
In a second aspect, an embodiment of the present application provides a control device for an intermediate shaft brake, the device comprising:
the receiving instruction module is used for responding to an instruction of switching from the current gear to the target gear;
the final energy determining module is used for determining the final energy of the intermediate shaft when gear shifting braking is completed according to the target rotating speed of the intermediate shaft corresponding to the target gear when the target gear is larger than the current gear;
the current resistance power module is used for determining the current resistance power corresponding to the current engine oil temperature according to the corresponding relation between the pre-configured engine oil temperature and the resistance power;
a first energy module is determined and used for determining first energy consumed by resistance braking on the intermediate shaft according to the current resistance power;
the second energy module is used for determining the second energy of the intermediate shaft when the active braking is completed according to the final energy and the first energy;
and the braking module is used for determining the active braking rotating speed based on the second energy and controlling the intermediate shaft brake to brake based on the active braking rotating speed.
In a third aspect, an embodiment of the present application provides an electronic device, including at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of control of the intermediate shaft brake provided in the first aspect above.
In a fourth aspect, an embodiment of the present application provides a computer storage medium storing a computer program for causing a computer to execute the method of controlling the intermediate shaft brake provided in the first aspect.
The embodiment of the application aims to solve the problem that the gear box is easy to cause unsuccessful gear in the full temperature range due to larger difference of calibration values at different temperatures. The application provides a control method and device of an intermediate shaft brake and electronic equipment, which can improve the adaptability of a system, can better adapt to various use conditions, and has better robustness by adopting a dynamic estimation mode.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
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, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method of controlling an intermediate shaft brake according to one embodiment of the application;
FIG. 2 is a detailed flow schematic of a method of controlling an intermediate shaft brake according to one embodiment of the application;
FIG. 3 is a schematic diagram of a control arrangement of an intermediate shaft brake according to one embodiment of the application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of the present application, unless otherwise indicated, "/" means or, for example, a/B may represent a or B; the text "and/or" is merely an association relation describing the associated object, and indicates that three relations may exist, for example, a and/or B may indicate: the three cases where a exists alone, a and B exist together, and B exists alone, and furthermore, in the description of the embodiments of the present application, "plural" means two or more than two.
In the description of the embodiments of the present application, unless otherwise indicated, the term "plurality" refers to two or more, and other words and phrases are to be understood and appreciated that the preferred embodiments described herein are for the purpose of illustration and explanation of the present application only, and are not intended to limit the present application, as well as the embodiments of the present application and features of the embodiments may be combined with each other without conflict.
In order to further explain the technical solution provided by the embodiments of the present application, the following details are described with reference to the accompanying drawings and the detailed description. Although embodiments of the present application provide the method operational steps shown in the following embodiments or figures, more or fewer operational steps may be included in the method based on routine or non-inventive labor. In steps where there is logically no necessary causal relationship, the execution order of the steps is not limited to the execution order provided by the embodiments of the present application. The methods may be performed sequentially or in parallel as shown in the embodiments or the drawings when the actual processing or the control device is executing.
In view of the problem that the gear box is easy to cause unsuccessful gear in the full temperature range due to the fact that the calibration value difference is large at different temperatures in the related art. The application provides a control method and device of an intermediate shaft brake and electronic equipment, which can improve the adaptability of a system, can better adapt to various use conditions, and has better robustness by adopting a dynamic estimation mode.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The following describes in detail the control method of the intermediate shaft brake in the embodiment of the application with reference to the accompanying drawings.
Fig. 1 shows a schematic flow chart of a control method of an intermediate shaft brake according to an embodiment of the present application, including:
step 101: in response to an instruction to shift from the current gear to the target gear.
Specifically, when a shift instruction is received, for example, the current gear is 1 st gear, and the target gear is 3 rd gear, that is, a shift from 1 st gear to 3 rd gear is required.
Step 102: and when the target gear is larger than the current gear, determining the final energy of the intermediate shaft when gear shifting braking is completed according to the target rotating speed of the intermediate shaft corresponding to the target gear.
In particular, the gear shifting braking comprises active braking controlled by the intermediate shaft brake and resistance braking controlled by the resistance, since the application relates to the braking process of the intermediate shaft brake on the intermediate shaft, the stationary application scenario is defined as the situation in which the target gear is greater than the current gear, since the intermediate shaft needs to be braked by the intermediate shaft brake when upshifting. As an alternative embodiment, the target rotational speed is determined by determining the target rotational speed of the intermediate shaft from the output shaft rotational speed and a target speed ratio, wherein the target speed ratio is the ratio of the gear rotational speed of the intermediate shaft to the gear rotational speed of the output shaft when the gear is the target gear.
The current output shaft rotational speed is obtained by a sensor for monitoring the output shaft rotational speed. The gear positions of a general gearbox are arranged in sequence from big to small according to the speed ratio, each gear position corresponds to one speed ratio, when in upshift, the ratio of the gear speed of the intermediate shaft to the gear speed of the output shaft is changed from big to small, and the speed of the output shaft cannot be suddenly changed, so that the intermediate shaft needs to be decelerated according to the speed ratio corresponding to the target gear position.
As an alternative embodiment, the final energy of the intermediate shaft upon completion of the gear change braking is determined based on the target rotational speed and the rotational inertia of the intermediate shaft. Specifically, when the intermediate shaft rotational speed reaches the target rotational speed, the final energy of the intermediate shaft is:
wherein E is M2 When the rotating speed of the intermediate shaft reaches the target rotating speed, the final energy of the intermediate shaft; n (N) 2 The intermediate shaft rotating speed when the gear engaging condition of the target gear is met, namely the target rotating speed; j is the rotational inertia of the intermediate shaft. The rotational inertia of the intermediate shaft is an inherent characteristic of the gearbox and can be measured according to experimental practice. For example, assume that the energy when the intermediate shaft is not braked by the brake is 1500J, and that the energy after the intermediate shaft has undergone the intermediate shaft brake and resistance braking processes is final energy, and that the final energy is 1100J.
Step 103: and determining the current resistance power corresponding to the current engine oil temperature according to the pre-configured corresponding relation between the engine oil temperature and the resistance power.
As an alternative embodiment, the resistance includes a countershaft sliding friction force, a countershaft oil whipping force. Specifically, in addition to the intermediate shaft brake, the intermediate shaft is also subject to two other part resistances: the rolling friction force of the first part moving part (mainly a bearing) is the sliding friction force of the intermediate shaft, and the resistance of the second part intermediate shaft transmission mechanism stirring lubricating oil is the intermediate shaft stirring oil acting force. The two parts of resistance are related to the temperature of engine oil in the gearbox, and the internal resistance of the intermediate shaft is greatly changed at different temperatures. Determining the current intermediate shaft sliding friction power corresponding to the current engine oil temperature according to a first corresponding relation between the pre-configured engine oil temperature and the intermediate shaft sliding friction power; determining the current intermediate shaft oil stirring power corresponding to the current engine oil temperature according to a second corresponding relation between the pre-configured engine oil temperature and the intermediate shaft oil stirring power; and determining the current resistance power through the current intermediate shaft sliding friction power and the current intermediate shaft oil stirring power. In summary, the sum of the current intermediate shaft sliding friction power and the current intermediate shaft oil stirring power is the current resistance power.
Step 104: a first energy dissipated by the resistive brake to the intermediate shaft is determined based on the current resistive power.
Specifically, after the intermediate shaft is actively braked by the intermediate shaft brake, the intermediate brake is released, the intermediate shaft is in a free state, and resistance braking is started at the moment, and in the gear engaging process, the target gear combining sleeve is supposed to run to an engagement point after t0 time passes, namely the gear is successfully engaged.
As an alternative embodiment, the first energy consumed by the resistance brake on the intermediate shaft is obtained by integrating the current resistance power over the time of the resistance brake.
In particular, the method comprises the steps of,
wherein t0 is the movement time from the start of gear engagement to the engagement point of the engagement sleeve, namely the time of resistance braking; p (P) 1 Sliding friction power for the intermediate shaft; p (P) 2 Stirring oil power for the intermediate shaft.
Step 105: and determining the second energy of the intermediate shaft when the active braking is completed according to the final energy and the first energy.
As an alternative embodiment, the second energy of the intermediate shaft upon completion of the active braking is determined by the sum of the final energy and the first energy.
Specifically, E M3 +E M2 ＝E M1 The method comprises the steps of carrying out a first treatment on the surface of the Wherein E is M1 A second energy being the intermediate shaft; for example, the middleThe energy when the shaft is not braked by the brake is 1500J, and the final energy E after the intermediate shaft is subjected to the active braking and the resistance braking processes of the intermediate shaft brake M2 1100J, consumption E in drag braking M3 Energy of =100deg.J, i.e. the active braking of the intermediate shaft by the intermediate shaft brake only requires the energy of the drive shaft to be reduced from 1500J to E M1 =1200j; when the energy of the driving shaft is reduced to 1200J by the intermediate shaft brake at the current engine oil temperature, the target gear combining sleeve moves to an engagement point after the intermediate shaft brake is braked by resistance, and then gear can be smoothly engaged.
Step 106: an active braking rotational speed is determined based on the second energy, and the intermediate shaft brake is controlled to apply braking based on the active braking rotational speed.
In particular, the method comprises the steps of,
wherein N is 1 For actively braking rotational speed, E is known M1 By E M3 +E M2 And finally, when a gear shifting signal is received, controlling to start the braking of the intermediate shaft brake until the intermediate shaft rotating speed is the active braking rotating speed, namely the active braking of the intermediate shaft brake is completed.
The application adopts the method for dynamically estimating the intermediate shaft brake to determine the active braking rotation speed, and the intermediate shaft brake is controlled by the method, so that compared with the prior system, the system adaptability is improved, various using conditions can be better adapted, and the robustness is better by adopting a dynamic estimation mode.
Referring to FIG. 2, a detailed method of control of an intermediate shaft brake is provided.
Step 201: in response to an instruction to shift from the current gear to the target gear.
Step 202: and when the target gear is greater than the current gear, determining the target rotating speed of the intermediate shaft according to the rotating speed of the output shaft and the target speed ratio.
Step 203: and determining the final energy of the intermediate shaft when the gear shifting braking is completed according to the target rotating speed and the rotational inertia of the intermediate shaft.
Step 204: and determining the current intermediate shaft sliding friction power corresponding to the current engine oil temperature according to a first corresponding relation between the pre-configured engine oil temperature and the intermediate shaft sliding friction power.
Step 205: and determining the current intermediate shaft oil stirring power corresponding to the current engine oil temperature according to a second corresponding relation between the pre-configured engine oil temperature and the intermediate shaft oil stirring power.
Step 206: and determining the current resistance power through the current intermediate shaft sliding friction power and the current intermediate shaft oil stirring power.
Step 207: the first energy consumed by the resistance brake on the intermediate shaft is obtained by integrating the current resistance power over the time of the resistance brake.
Step 208: and determining the second energy of the intermediate shaft when the active braking is completed through the sum of the final energy and the first energy.
Step 209: an active braking rotational speed is determined based on the second energy, and the intermediate shaft brake is controlled to apply braking based on the active braking rotational speed.
Example 2
Based on the same inventive concept, the application also provides a control device of an intermediate shaft brake, as shown in fig. 3, comprising:
a receive instruction module 301 for responding to an instruction to switch from a current gear to a target gear;
a final energy determining module 302, configured to determine final energy of the intermediate shaft when the gear shifting braking is completed according to a target rotational speed of the intermediate shaft corresponding to the target gear when the target gear is greater than the current gear;
the current resistance power determining module 303 is configured to determine a current resistance power corresponding to a current engine oil temperature according to a pre-configured corresponding relationship between the engine oil temperature and the resistance power;
a determine first energy module 304 for determining a first energy expended by a resistive brake on the intermediate shaft based on the current resistive power;
a second energy determining module 305, configured to determine, according to the final energy and the first energy, a second energy of the intermediate shaft when active braking is completed;
a braking module 306 for determining an active braking rotational speed based on the second energy and controlling the intermediate shaft brake to apply braking based on the active braking rotational speed.
Optionally, the determining final energy module 302 is specifically configured to: determining a target rotating speed of the intermediate shaft according to the rotating speed of the output shaft and a target speed ratio, wherein the target speed ratio is the ratio of the rotating speed of the gear of the intermediate shaft to the rotating speed of the gear of the output shaft when the gear is the target gear; and determining the final energy of the intermediate shaft when gear shifting braking is completed according to the target rotating speed and the rotational inertia of the intermediate shaft.
Optionally, the resistance includes intermediate shaft sliding friction, intermediate shaft oil stirring force.
Optionally, the determining current resistance power module 303 is specifically configured to: determining the current intermediate shaft sliding friction power corresponding to the current engine oil temperature according to a first corresponding relation between the pre-configured engine oil temperature and the intermediate shaft sliding friction power; determining the current intermediate shaft oil stirring power corresponding to the current engine oil temperature according to a second corresponding relation between the pre-configured engine oil temperature and the intermediate shaft oil stirring power; and determining the current resistance power through the current intermediate shaft sliding friction power and the current intermediate shaft oil stirring power.
Optionally, the determining the first energy module 304 is specifically configured to: and obtaining the first energy consumed by the resistance braking on the intermediate shaft through the integration of the current resistance power in the time of the resistance braking.
Optionally, the determining second energy module 305 is specifically configured to: and determining the second energy of the intermediate shaft when the active braking is completed through the sum of the final energy and the first energy.
Having described the control method and apparatus of the intermediate shaft brake according to an exemplary embodiment of the present application, next, an electronic device according to another exemplary embodiment of the present application is described.
Those skilled in the art will appreciate that the various aspects of the application may be implemented as a system, method, or program product. Accordingly, aspects of the application may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.
In some possible embodiments, an electronic device according to the application may comprise at least one processor and at least one memory. Wherein the memory stores program code which, when executed by the processor, causes the processor to carry out the steps in the control method of an intermediate shaft brake according to various exemplary embodiments of the application described in the present specification.
The electronic device 130 according to this embodiment of the application, i.e. the control device of the above-mentioned intermediate shaft brake, is described below with reference to fig. 4. The electronic device 130 shown in fig. 4 is merely an example and should not be construed as limiting the functionality and scope of use of embodiments of the present application.
As shown in fig. 4, the electronic device 130 is in the form of a general-purpose electronic device. Components of electronic device 130 may include, but are not limited to: the at least one processor 131, the at least one memory 132, and a bus 133 connecting the various system components, including the memory 132 and the processor 131.
Bus 133 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a processor, and a local bus using any of a variety of bus architectures.
Memory 132 may include readable media in the form of volatile memory such as Random Access Memory (RAM) 1321 and/or cache memory 1322, and may further include Read Only Memory (ROM) 1323.
Memory 132 may also include a program/utility 1325 having a set (at least one) of program modules 1324, such program modules 1324 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
The electronic device 130 may also communicate with one or more external devices 134 (e.g., keyboard, pointing device, etc.), one or more devices that enable a user to interact with the electronic device 130, and/or any device (e.g., router, modem, etc.) that enables the electronic device 130 to communicate with one or more other electronic devices. Such communication may occur through an input/output (I/O) interface 135. Also, electronic device 130 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 136. As shown, network adapter 136 communicates with other modules for electronic device 130 over bus 133. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 130, including, but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
In some possible embodiments, aspects of the method of controlling an intermediate shaft brake provided by the application may also be implemented in the form of a program product comprising program code for causing a computer device to carry out the steps of a method of controlling an intermediate shaft brake according to the various exemplary embodiments of the application as described in the specification, when the program product is run on a computer device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The program product for monitoring of embodiments of the present application may employ a portable compact disc read only memory (CD-ROM) and comprise program code and may run on an electronic device. However, the program product of the present application is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the consumer electronic device, partly on the consumer electronic device, as a stand-alone software package, partly on the consumer electronic device, partly on the remote electronic device, or entirely on the remote electronic device or server. In the case of remote electronic devices, the remote electronic device may be connected to the consumer electronic device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external electronic device (e.g., connected through the internet using an internet service provider).
It should be noted that although several units or sub-units of the apparatus are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. Indeed, the features and functions of two or more of the elements described above may be embodied in one element in accordance with embodiments of the present application. Conversely, the features and functions of one unit described above may be further divided into a plurality of units to be embodied.
Furthermore, although the operations of the methods of the present application are depicted in the drawings in a particular order, this is not required to either imply that the operations must be performed in that particular order or that all of the illustrated operations be performed to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flowchart and/or block of the flowchart and block diagrams, and combinations of flowcharts and block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. A method of controlling a countershaft brake, said method comprising:
responsive to an instruction to shift from a current gear to a target gear;
when the target gear is larger than the current gear, determining the final energy of the intermediate shaft when gear shifting braking is completed according to the target rotating speed of the intermediate shaft corresponding to the target gear;
determining the current resistance power corresponding to the current engine oil temperature according to the corresponding relation between the pre-configured engine oil temperature and the resistance power;
determining a first energy consumed by a resistance brake on the intermediate shaft according to the current resistance power;
determining second energy of the intermediate shaft when active braking is completed according to the final energy and the first energy;
and determining an active braking rotation speed based on the second energy, and controlling the intermediate shaft brake to brake based on the active braking rotation speed.
2. The method according to claim 1, wherein determining the final energy of the intermediate shaft when the shift braking is completed according to the target rotational speed of the intermediate shaft corresponding to the target gear comprises:
determining a target rotating speed of the intermediate shaft according to the rotating speed of the output shaft and a target speed ratio, wherein the target speed ratio is the ratio of the rotating speed of the gear of the intermediate shaft to the rotating speed of the gear of the output shaft when the gear is the target gear;
and determining the final energy of the intermediate shaft when gear shifting braking is completed according to the target rotating speed and the rotational inertia of the intermediate shaft.
3. The method of claim 1, wherein the resistance comprises a countershaft sliding friction force, a countershaft churning force.
4. The method of claim 1, wherein determining the current resistive power corresponding to the current oil temperature based on the pre-configured oil temperature versus resistive power correspondence, comprises:
determining the current intermediate shaft sliding friction power corresponding to the current engine oil temperature according to a first corresponding relation between the pre-configured engine oil temperature and the intermediate shaft sliding friction power;
determining the current intermediate shaft oil stirring power corresponding to the current engine oil temperature according to a second corresponding relation between the pre-configured engine oil temperature and the intermediate shaft oil stirring power;
and determining the current resistance power through the current intermediate shaft sliding friction power and the current intermediate shaft oil stirring power.
5. The method of claim 1, wherein said determining a first energy dissipated by a resistive brake to said intermediate shaft based on said current resistive power comprises:
and obtaining the first energy consumed by the resistance braking on the intermediate shaft through the integration of the current resistance power in the time of the resistance braking.
6. The method of claim 1, wherein said determining a second energy of said intermediate shaft upon completion of said active braking based on said final energy and said first energy comprises:
and determining the second energy of the intermediate shaft when the active braking is completed through the sum of the final energy and the first energy.
7. A control device for an intermediate shaft brake, characterized in that the device comprises:
the receiving instruction module is used for responding to an instruction of switching from the current gear to the target gear;
the final energy determining module is used for determining the final energy of the intermediate shaft when gear shifting braking is completed according to the target rotating speed of the intermediate shaft corresponding to the target gear when the target gear is larger than the current gear;
the current resistance power module is used for determining the current resistance power corresponding to the current engine oil temperature according to the corresponding relation between the pre-configured engine oil temperature and the resistance power;
a first energy module is determined and used for determining first energy consumed by resistance braking on the intermediate shaft according to the current resistance power;
the second energy module is used for determining the second energy of the intermediate shaft when the active braking is completed according to the final energy and the first energy;
and the braking module is used for determining the active braking rotating speed based on the second energy and controlling the intermediate shaft brake to brake based on the active braking rotating speed.
8. The apparatus of claim 7, wherein the determining final energy module is specifically configured to: determining a target rotating speed of the intermediate shaft according to the rotating speed of the output shaft and a target speed ratio, wherein the target speed ratio is the ratio of the rotating speed of the gear of the intermediate shaft to the rotating speed of the gear of the output shaft when the gear is the target gear;
and determining the final energy of the intermediate shaft when gear shifting braking is completed according to the target rotating speed and the rotational inertia of the intermediate shaft.
9. An electronic device comprising at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-6.
10. A computer storage medium, characterized in that the computer storage medium stores a computer program for causing a computer to perform the method according to any one of claims 1-6.
CN202310790399.7A 2023-06-30 2023-06-30 Control method and device of intermediate shaft brake and electronic equipment Pending CN116857355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310790399.7A CN116857355A (en) 2023-06-30 2023-06-30 Control method and device of intermediate shaft brake and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310790399.7A CN116857355A (en) 2023-06-30 2023-06-30 Control method and device of intermediate shaft brake and electronic equipment

Publications (1)

Publication Number Publication Date
CN116857355A true CN116857355A (en) 2023-10-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310790399.7A Pending CN116857355A (en) 2023-06-30 2023-06-30 Control method and device of intermediate shaft brake and electronic equipment

Country Status (1)

Country Link
CN (1) CN116857355A (en)

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