CN115355314A - Starting control method, device, equipment and medium - Google Patents

Starting control method, device, equipment and medium Download PDF

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Publication number
CN115355314A
CN115355314A CN202211060204.5A CN202211060204A CN115355314A CN 115355314 A CN115355314 A CN 115355314A CN 202211060204 A CN202211060204 A CN 202211060204A CN 115355314 A CN115355314 A CN 115355314A
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China
Prior art keywords
target
gear
starting
clutch
synchronizer
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CN202211060204.5A
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Chinese (zh)
Inventor
吴光强
杨庆
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Tongji University
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Tongji University
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Priority to CN202211060204.5A priority Critical patent/CN115355314A/en
Publication of CN115355314A publication Critical patent/CN115355314A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/04Smoothing ratio shift
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/04Smoothing ratio shift
    • F16H61/06Smoothing ratio shift by controlling rate of change of fluid pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/04Smoothing ratio shift
    • F16H61/0403Synchronisation before shifting
    • F16H2061/0407Synchronisation before shifting by control of clutch in parallel torque path
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/04Smoothing ratio shift
    • F16H61/06Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/061Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means
    • F16H2061/062Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means for controlling filling of clutches or brake servos, e.g. fill time, fill level or pressure during filling

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention relates to the technical field of double-clutch automatic gearbox control, and discloses a starting control method, a starting control device, starting control equipment and a starting control medium. According to the method, after a starting instruction is received, a target gear is set according to a starting working condition, if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, the target gear is temporarily switched to an available gear of another transmission shaft of the double-clutch automatic gearbox, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit starting process power; when a target synchronizer and a target clutch corresponding to a target gear are detected to meet starting conditions, the available gear is switched to the target gear to control the target synchronizer and the target clutch to carry out starting control on the double-clutch automatic gearbox; therefore, through the combined action of different clutches and synchronizers, the problem of power interruption in the starting process under partial working conditions is solved, the urgent driving starting is realized, and the driving experience is improved.

Description

Starting control method, device, equipment and medium
Technical Field
The invention relates to the technical field of double-clutch automatic gearbox control, in particular to a starting control method, a starting control device, starting control equipment and a starting control medium.
Background
The gear shifting process of the double-clutch automatic gearbox (DCT) is completed by coordinating clutch control and synchronizer control. In the starting process, oil filling of the clutch and gear selecting and shifting of the synchronizer need to be completed in advance, and the vehicle is started through control of the clutch engaging process.
Because it takes a certain time to take the gear-off and gear-in of the synchronizer and the oil-filling of the clutch, under some special working conditions, if the oil-filling of the clutch and the gear-selecting and shifting of the synchronizer are not finished, the DCT may not start within a period of time.
Disclosure of Invention
The invention mainly aims to provide a starting control method, a starting control device, starting control equipment and a starting control medium, and aims to solve the problem of power interruption in a starting process under partial working conditions through combined actions of different clutches and synchronizers, realize urgent driving starting and improve driving experience.
In order to achieve the purpose, the invention provides a starting control method, which is applied to a double-clutch automatic gearbox controller and comprises the following steps:
after a starting instruction is received, a target gear is set according to a starting working condition, if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, the target gear is temporarily switched to an available gear of another transmission shaft of the double-clutch automatic gearbox, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit starting process power;
and when detecting that a target synchronizer and a target clutch corresponding to the target gear meet a starting condition, switching the available gear to the target gear to control the target synchronizer and the target clutch to carry out starting control on the double-clutch automatic gearbox.
Preferably, after the starting instruction is received, a target gear is set according to a starting condition, and if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, the step of temporarily switching the target gear to an available gear of another transmission shaft of the dual-clutch automatic transmission comprises the following steps:
after a starting instruction is received, setting a target gear according to a starting working condition, and detecting whether a target clutch corresponding to the target gear finishes oil filling;
if not, temporarily switching the target gear to an available gear of another transmission shaft of the double-clutch automatic transmission, and detecting whether a synchronizer corresponding to the available gear is in a gear;
if yes, detecting whether the clutch corresponding to the available gear completes oil filling;
and if so, controlling the synchronizer and the clutch corresponding to the available gears to perform temporary starting so as to transmit the starting process power.
Preferably, after the step of detecting whether the synchronizer corresponding to the available gear is in the gear, the method further includes:
if not, a torque limit request is sent to the engine controller.
Preferably, after the step of detecting whether the clutch corresponding to the available gear completes oil filling, the method further includes:
if not, detecting whether the clutch oil filling completion degree is greater than the target clutch oil filling completion degree or not;
if so, controlling the clutch corresponding to the available gear to enter a quick oil filling mode;
if not, a torque limit request is sent to the engine controller.
Preferably, when it is detected that a target synchronizer and a target clutch corresponding to the target gear meet a start condition, the available gear is switched to the target gear to control the target synchronizer and the target clutch to perform start control on the dual-clutch automatic transmission, the step includes:
timing through a timer to obtain first starting time of the clutch, and detecting whether the first starting time is greater than preset starting time;
if not, detecting whether the target synchronizer is in gear or not;
and if the target synchronizer is in the gear and the target clutch finishes oil filling, entering a power transfer mode from the available gear to the target gear, controlling the target clutch to perform engagement and controlling the clutch to perform disengagement so as to control the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
Preferably, after the step of setting the target gear according to the starting condition after receiving the starting instruction, the method further includes:
after a starting instruction is received, setting a target gear according to a starting working condition, and detecting whether a target clutch corresponding to the target gear finishes oil filling;
if yes, detecting whether a target synchronizer corresponding to the target gear is in the gear or not;
if so, starting control of the target clutch is started, timing is carried out through a timer to obtain second starting time of the target clutch, and whether the second starting time is larger than preset starting time or not is detected;
and if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
Preferably, after the step of detecting whether the target synchronizer corresponding to the target gear is in the gear, the method further includes:
if not, detecting whether the target synchronizer completes the gear engaging process of a preset component or not;
if yes, switching the target synchronizer to a fast gear engaging mode, timing through the timer to obtain gear engaging time of the target synchronizer, and detecting whether the gear engaging time exceeds preset gear engaging time;
and if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
In order to achieve the above object, the present invention also provides a start control device including:
the transmission module is used for setting a target gear according to a starting condition after receiving a starting instruction, temporarily switching the target gear to an available gear of another transmission shaft of the double-clutch automatic gearbox if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, and controlling the synchronizer and the clutch corresponding to the available gear to temporarily start so as to transmit power in a starting process;
and the starting module is used for switching the available gear to the target gear when detecting that the target synchronizer and the target clutch corresponding to the target gear meet the starting condition so as to control the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
In addition, to achieve the above object, the present invention also provides a device, which is a start control device, including: the starting control method comprises a memory, a processor and a starting control program which is stored on the memory and can run on the processor, wherein the steps of the starting control method are realized when the starting control program is executed by the processor.
In order to achieve the above object, the present invention further provides a medium, which is a computer-readable storage medium having a start control program stored thereon, wherein the start control program, when executed by a processor, implements the steps of the start control method described above.
The invention provides a starting control method, a device, equipment and a medium; the starting control method is applied to a double-clutch automatic gearbox controller, and comprises the following steps: after a starting instruction is received, a target gear is set according to a starting working condition, if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, the target gear is temporarily switched to an available gear of the other transmission shaft of the double-clutch automatic transmission, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit starting process power; and when detecting that a target synchronizer and a target clutch corresponding to the target gear meet starting conditions, switching the available gear to the target gear to control the target synchronizer and the target clutch to carry out starting control on the double-clutch automatic gearbox. According to the invention, after a starting instruction is received, a target gear is set according to a starting working condition, if a target synchronizer corresponding to the target gear is detected to be in a gear selecting and shifting process and a target clutch is detected to be in an oil filling process, the target gear is switched to an available gear on the other transmission shaft of the double-clutch automatic gearbox, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit starting process power, respond to driving requirements and prevent the rotating speed of an engine from running away; when the target synchronizer corresponding to the target gear is detected to finish gear engagement and the target clutch finishes oil filling, the available gear is switched to the target gear so as to control the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox, and the problem of power interruption in the starting process of the target gear is effectively solved; therefore, through the combined action of different clutches and synchronizers, the problem of power interruption in the starting process under partial working conditions is solved, the urgent driving starting is realized, and the driving experience is improved.
Drawings
FIG. 1 is a schematic diagram of an apparatus architecture of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating a first exemplary embodiment of a launch control method of the present invention;
FIG. 3 is a flowchart illustrating a second exemplary embodiment of a launch control method of the present invention;
FIG. 4 is a schematic view of a first sub-flow of a second embodiment of a start control method according to the present invention;
FIG. 5 is a second sub-flowchart of a second embodiment of a launch control method according to the present invention;
FIG. 6 is a schematic flow chart diagram illustrating a third exemplary embodiment of a launch control method of the present invention;
FIG. 7 is a flowchart illustrating a fourth exemplary embodiment of a start control method according to the present invention;
FIG. 8 is a schematic flow chart diagram illustrating a fifth exemplary embodiment of a launch control method of the present invention;
FIG. 9 is a schematic flow chart diagram illustrating a launch control method according to a sixth embodiment of the present invention;
FIG. 10 is a flowchart illustrating a start control method according to a seventh embodiment of the present invention;
fig. 11 is a functional block diagram of the starting control device according to the first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present invention.
The device of the embodiment of the invention can be a mobile terminal or a server device.
As shown in fig. 1, the apparatus may include: a processor 1001, e.g. a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. The communication bus 1002 is used to implement connection communication among these components. The user interface 1003 may include a Display (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory such as a disk memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the apparatus shown in fig. 1 is not intended to be limiting of the apparatus and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a starting control program.
The operating system is a program for managing and controlling the starting control equipment and software resources, and supports the operation of the network communication module, the user interface module, the starting control program and other programs or software; the network communication module is used for managing and controlling the network interface 1002; the user interface module is used to manage and control the user interface 1003.
In the starting control apparatus shown in fig. 1, the starting control apparatus calls a starting control program stored in a memory 1005 by a processor 1001 and executes operations in the respective embodiments of the starting control method described below.
Based on the hardware structure, the embodiment of the starting control method is provided.
Referring to fig. 2, fig. 2 is a schematic flowchart of a start control method according to a first embodiment of the present invention, where the start control method includes:
step S10, after a starting instruction is received, a target gear is set according to a starting working condition, if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, the target gear is temporarily switched to an available gear of another transmission shaft of the double-clutch automatic gearbox, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit power in a starting process;
and step S20, when the target synchronizer and the target clutch corresponding to the target gear are detected to meet starting conditions, the available gear is switched to the target gear to control the target synchronizer and the target clutch to carry out starting control on the double-clutch automatic gearbox.
According to the method, after a starting instruction is received, a target gear is set according to a starting working condition, if it is detected that a target synchronizer corresponding to the target gear is in a gear selecting and shifting process and a target clutch is in an oil filling process, the target gear is switched to an available gear on the other transmission shaft of the double-clutch automatic gearbox, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit starting process power, respond to driving requirements and prevent the rotating speed of an engine from running away; when a target synchronizer and a target clutch corresponding to a target gear are detected to meet starting conditions, the available gear is switched to the target gear to control the target synchronizer and the target clutch to carry out starting control on the double-clutch automatic gearbox, and the problem of power interruption in the starting process of the target gear is effectively solved; therefore, through the combined action of different clutches and synchronizers, the problem of power interruption in the starting process under partial working conditions is solved, urgent driving starting is realized, and the driving experience is improved.
The respective steps will be described in detail below:
and S10, after a starting instruction is received, setting a target gear according to a starting working condition, if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, temporarily switching the target gear to an available gear of another transmission shaft of the double-clutch automatic gearbox, and controlling the synchronizer and the clutch corresponding to the available gear to temporarily start so as to transmit power in a starting process.
In the embodiment, the starting control method is applied to a double-clutch automatic gearbox controller, under the working condition that a transmission shaft of a target gear is in a synchronizer gear selecting and shifting process or a clutch oil charging process and the starting process cannot be carried out, an available gear on the other transmission shaft of the double-clutch automatic gearbox is utilized for temporary starting, partial power is transmitted, the requirement of a driver is responded, and the rotating speed of an engine is prevented from running away; after the transmission shaft of the target gear finishes the selection and the gear shifting of the synchronizer and the oil charging of the clutch, the power switching is carried out, the starting process is switched to the target gear, the problem of power interruption in the starting process under partial working conditions is effectively solved, and the driving experience is improved.
The Dual Clutch Transmission (DCT) is provided with two groups of clutches, and the two groups of clutches are respectively connected with different input shafts; for example, the odd clutch C1 is connected to the gears 1, 3, 5 via a solid shaft, and the even clutch C2 is connected to the gears 2, 4, 6 via a hollow shaft.
And after a double-clutch automatic gearbox controller (TCU) receives a starting instruction of the vehicle, setting a corresponding target gear according to a starting working condition. Detecting whether the target clutch finishes oil filling and whether a target synchronizer of a target gear is in the gear, wherein when the target clutch finishes oil filling and the target synchronizer of the target gear is in the gear, the target clutch and the target synchronizer can be controlled to perform starting control on the double-clutch automatic gearbox; that is, the target clutch and the target synchronizer satisfy the take-off condition.
And when the target clutch and the target synchronizer are detected not to meet the starting condition, the target gear is temporarily switched to an available gear on the other transmission shaft of the double-clutch automatic gearbox, and the synchronizer and the clutch corresponding to the available gear are controlled to start temporarily so as to transmit the power in the starting process.
When the target gear is an odd gear, the corresponding target clutch is an odd clutch C1, and the corresponding target synchronizer is an odd shaft synchronizer; the available gears are even gears, the corresponding clutch is an even clutch C2, and the corresponding synchronizer is an even shaft synchronizer.
When the target gear is an even gear, the corresponding target clutch is an even clutch C2, and the corresponding target synchronizer is an even shaft synchronizer; the available gears are odd gears, the corresponding clutch is an odd clutch C1, and the corresponding synchronizer is an odd shaft synchronizer.
And S20, when the target synchronizer and the target clutch corresponding to the target gear are detected to meet the starting condition, the available gear is switched to the target gear to control the target synchronizer and the target clutch to carry out starting control on the double-clutch automatic gearbox.
In this embodiment, when it is detected that the target synchronizer is in gear and the target clutch is filled with oil, a condition that the target synchronizer and the target clutch corresponding to the target gear have power transmission is described, and a dual clutch automatic Transmission Controller (TCU) enters a power transfer mode from an available gear to the target gear, so that the target clutch performs engagement control, and the clutch corresponding to the available gear performs disengagement control, thereby realizing transfer of power transmission from the available gear to the target gear.
In the process of transferring power from an available gear to a target gear, a double-clutch automatic gearbox controller (TCU) gradually enters a starting process of the target gear until the starting process is completed. Therefore, the problem that the power is interrupted in the starting process under partial working conditions is effectively solved, and the driving experience is improved.
According to the method, after a starting instruction is received, a target gear is set according to a starting working condition, if it is detected that a target synchronizer corresponding to the target gear is in a gear selecting and shifting process and a target clutch is in an oil filling process, the target gear is temporarily switched to an available gear on the other transmission shaft of the double-clutch automatic gearbox, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit starting process power, respond to driving requirements and prevent the rotating speed of an engine from running away; when a target synchronizer and a target clutch corresponding to a target gear are detected to meet starting conditions, the available gear is switched to the target gear to control the target synchronizer and the target clutch to carry out starting control on the double-clutch automatic gearbox, and the problem of power interruption in the starting process of the target gear is effectively solved; therefore, through the combined action of different clutches and synchronizers, the problem of power interruption in the starting process under partial working conditions is solved, the urgent driving starting is realized, and the driving experience is improved.
Further, a second embodiment of the start control method of the present invention is proposed based on the first embodiment of the start control method of the present invention.
The difference between the second embodiment of the starting control method and the first embodiment of the starting control method is that, in this embodiment, for step S10, after a starting instruction is received, a target gear is set according to a starting condition, and if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, the target gear is temporarily switched to a refined gear of another available gear of another transmission shaft of the dual clutch automatic transmission, referring to fig. 3, the step specifically includes:
step S11, after a starting instruction is received, a target gear is set according to a starting working condition, and whether the target clutch corresponding to the target gear finishes oil filling is detected;
step S12, if not, temporarily switching the target gear to an available gear of another transmission shaft of the double-clutch automatic transmission, and detecting whether a synchronizer corresponding to the available gear is in a gear;
step S13, if yes, detecting whether the clutch corresponding to the available gear finishes oil filling;
and S14, if so, controlling the synchronizer and the clutch corresponding to the available gears to perform temporary starting so as to transmit the starting process power.
In the embodiment, after a starting instruction is received, a target gear is set according to a starting working condition, and whether the target clutch corresponding to the target gear finishes oil filling is detected; if not, temporarily switching the target gear to an available gear on the other transmission shaft of the double-clutch automatic transmission, and detecting whether a synchronizer corresponding to the available gear is in the gear or not; if yes, detecting whether the clutch corresponding to the available gear completes oil filling; if so, controlling a synchronizer and a clutch corresponding to the available gear to perform temporary starting so as to transmit starting process power; therefore, the temporary starting is carried out through the synchronizer and the clutch corresponding to the available gear to transmit starting power, the driver demand is responded, and the running-off of the engine speed is prevented.
The respective steps will be described in detail below:
and S11, after receiving a starting instruction, setting a target gear according to a starting working condition, and detecting whether the target clutch corresponding to the target gear finishes oil filling.
In the embodiment, after a dual clutch automatic Transmission Controller (TCU) receives a starting instruction of a vehicle, a corresponding target gear is set according to a starting condition. Whether oil filling is finished by detecting a target clutch or not; whether the target clutch meets the starting condition or not can be judged by detecting whether the target clutch finishes oil filling or not; when the target clutch finishes oil filling, whether the target synchronizer meets starting conditions can be further detected; when the target clutch does not finish oil filling, the target gear can be temporarily switched to an available gear on the other transmission shaft of the double-clutch automatic gearbox, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit power in the starting process.
When the target gear is an odd gear, the corresponding target clutch is an odd clutch C1, and the corresponding target synchronizer is an odd shaft synchronizer;
when the target gear is an even gear, the corresponding target clutch is the even clutch C2, and the corresponding target synchronizer is an even-shaft synchronizer.
And S12, if not, switching the target gear to an available gear of another transmission shaft of the double-clutch automatic transmission, and detecting whether a synchronizer corresponding to the available gear is in a gear.
In this embodiment, when the dual-clutch automatic Transmission Controller (TCU) detects that the target clutch does not complete charging, the target gear is temporarily switched to an available gear on another transmission shaft of the dual-clutch automatic transmission, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit power in a starting process.
Whether the synchronizer corresponding to the available gear is in the gear is detected through a double-clutch automatic gearbox controller (TCU) so as to detect whether the synchronizer of the available gear meets the starting condition.
Further, in an embodiment, referring to fig. 4, after step S12, the start control method further includes:
and step A10, if not, sending a torque limit request to an engine controller.
In this embodiment, when the synchronizer of the available gear is not in the gear, which indicates that there is no available starting gear, the dual clutch automatic Transmission Controller (TCU) sends a torque limit request to the Engine Controller (ECU), so as to avoid the engine speed from running away, and simultaneously strive for corresponding action time for engaging the target synchronizer of the target gear and charging the target clutch.
And S13, if yes, detecting whether the clutch corresponding to the available gear finishes oil filling.
In the embodiment, when the dual clutch automatic gearbox controller (TCU) detects that the synchronizer of the available gear is in the gear, it indicates that the synchronizer of the available gear meets the starting condition, and it can be further detected whether the clutch of the available gear meets the starting condition.
When the clutch is detected to finish oil filling, the clutch of the available gear meets the starting condition, and the synchronizer and the clutch corresponding to the available gear can be controlled to temporarily start so as to transmit the power in the starting process;
when it is detected that the clutch does not complete filling, the clutch in the available gear does not meet the starting condition.
Further, in an embodiment, referring to fig. 5, after step S13, the method further includes:
step B10, if not, detecting whether the clutch oil filling completion degree is greater than the target clutch oil filling completion degree or not;
b20, if yes, controlling the clutch corresponding to the available gear to enter a quick oil filling mode;
and B30, if not, sending a torque limit request to the engine controller.
In the embodiment, when the double-clutch automatic gearbox controller (TCU) detects that the clutch of the available gear does not complete oil filling, the clutch of the available gear does not meet the starting condition. Detecting whether the clutch oil filling completion degree of the available gears is greater than the target clutch oil filling completion degree or not; when detecting that the oil filling completion degree of the clutch of the available gear is greater than the oil filling completion degree of the target clutch, controlling the corresponding clutch to enter a quick oil filling mode so as to control the synchronizer and the clutch corresponding to the available gear to perform temporary starting and transmit the power in the starting process; when the clutch oil filling completion degree of the available gears is detected to be less than or equal to the target clutch oil filling completion degree, it is indicated that the clutch of the available gears does not meet the starting condition, a double-clutch automatic Transmission Controller (TCU) sends a torque limiting request to an engine controller to avoid the rotating speed of an engine from running away, and corresponding action time is strived for gear engagement of the target synchronizer and oil filling of the target clutch; therefore, the problem of power interruption in the starting process under partial working conditions is effectively solved, and the driving experience is improved.
And S14, if so, controlling the synchronizer and the clutch corresponding to the available gear to perform temporary starting so as to transmit starting process power.
In this embodiment, when the dual-clutch automatic Transmission Controller (TCU) detects that the clutch is completely filled with oil, it indicates that the clutch in the available gear meets the starting condition, and the synchronizer and the clutch corresponding to the available gear may be controlled to perform temporary starting to transmit the power in the starting process.
In the embodiment, after a starting instruction is received, a target gear is set according to a starting working condition, and whether the target clutch corresponding to the target gear finishes oil filling is detected; if not, temporarily switching the target gear to an available gear on the other transmission shaft of the double-clutch automatic transmission, and detecting whether a synchronizer corresponding to the available gear is in the gear; if yes, detecting whether the clutch corresponding to the available gear finishes oil filling; if so, controlling a synchronizer and a clutch corresponding to the available gears to perform temporary starting so as to transmit the starting process power; therefore, the temporary starting is carried out through the synchronizer and the clutch corresponding to the available gear to transmit starting power, respond to the requirement of a driver and prevent the engine from running away.
Further, a third embodiment of the starting control method of the present invention is proposed based on the first and second embodiments of the starting control method of the present invention.
The third embodiment of the starting control method is different from the first and second embodiments of the starting control method in that, in this embodiment, for step S20, when it is detected that the target synchronizer and the target clutch corresponding to the target gear meet the starting condition, the available gear is switched to the target gear to control the target synchronizer and the target clutch to refine the starting control of the dual-clutch automatic transmission, referring to fig. 6, the step specifically includes:
step S21, timing through a timer to obtain first starting time of the clutch, and detecting whether the first starting time is greater than preset starting time;
step S22, if not, detecting whether the target synchronizer is in a gear or not;
and S23, if the target synchronizer is in the gear and the target clutch finishes oil filling, the power transfer from the available gear to the target gear is started, the target clutch is controlled to engage and the clutch is controlled to disengage, and the target synchronizer and the target clutch are controlled to start the automatic double-clutch transmission.
In the embodiment, a timer is used for timing to obtain the first starting time of the clutch, and whether the first starting time is greater than the preset starting time is detected; if not, detecting whether the target synchronizer is in gear or not; if the synchronizer is in the gear and the target clutch finishes oil filling, the power transfer mode from the available gear to the target gear is entered, and the target clutch is controlled to perform engagement and to perform disengagement so as to control the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox; therefore, power switching is carried out after the transmission shaft of the target gear finishes synchronizer gear selection and shifting and the clutch is filled with oil, the starting process is switched to the target gear, the problem of power interruption in the starting process is effectively solved, and driving experience is improved.
The respective steps will be described in detail below:
and S21, timing by a timer to obtain first starting time of the clutch, and detecting whether the first starting time is greater than preset starting time.
In the embodiment, in the process of executing the temporary starting control of the clutch of the available gear, the starting of the clutch is timed by a timer so as to obtain the first starting time of the clutch; comparing the first starting time with preset starting time, and confirming whether the first starting time exceeds a set time limit value in real time; the preset starting time is a preset starting time limit value.
If the preset starting time is exceeded, entering a clutch starting fault mode of an available gear;
and if the preset starting time is not exceeded, detecting whether a target synchronizer and a target clutch of the target gear meet the starting condition or not through a double-clutch automatic Transmission Controller (TCU).
And S22, if not, detecting whether the target synchronizer is in the gear or not.
In this embodiment, when the dual clutch automatic Transmission Controller (TCU) detects that the preset starting time is not exceeded, it determines whether the target synchronizer of the target gear is in the gear in real time, and detects whether the target synchronizer and the target clutch of the target gear meet the starting condition.
And S23, if the target synchronizer is in the gear and the target clutch finishes oil filling, entering a power transfer mode from the available gear to the target gear, controlling the target clutch to perform engagement and controlling the clutch to perform disengagement so as to control the target synchronizer and the target clutch to perform starting control of the double-clutch automatic gearbox.
In the embodiment, when a double-clutch automatic gearbox controller (TCU) detects that a target synchronizer of a target gear is in the gear and the target clutch finishes oil filling, the condition that the target synchronizer of the target gear and the target clutch have power transmission is described, the double-clutch automatic gearbox controller (TCU) enters a power transfer mode from an available gear to the target gear, the target clutch performs engagement control, the clutch of the available gear performs disengagement control, power transmission is transferred from the available gear to the target gear, and the target synchronizer and the target clutch are controlled to perform starting control of the double-clutch automatic gearbox; therefore, power switching is carried out after the transmission shaft of the target gear finishes synchronizer gear selection and shifting and the clutch is filled with oil, the starting process is switched to the target gear, the problem of power interruption in the starting process is effectively solved, and driving experience is improved.
In the embodiment, a timer is used for timing to obtain the starting time of the clutch, and whether the starting time is greater than the preset starting time is detected; if not, detecting whether the target synchronizer is in the gear or not; if the synchronizer is in the gear and the target clutch finishes oil filling, the power transfer mode from the available gear to the target gear is started, and the target clutch is controlled to be engaged and separated so as to control the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox; therefore, power switching is carried out after the transmission shaft of the target gear finishes synchronizer gear selection and shifting and the clutch is filled with oil, the starting process is switched to the target gear, the problem of power interruption in the starting process is effectively solved, and driving experience is improved.
Further, a fourth embodiment of the starting control method of the present invention is proposed based on the first, second, and third embodiments of the starting control method of the present invention.
The fourth embodiment of the starting control method is different from the first, second and third embodiments of the starting control method in that, in step S10, after the step of setting the target gear according to the starting condition after receiving the starting instruction, referring to fig. 7, the starting control method further includes:
step D10, after receiving a starting instruction, setting a target gear according to a starting working condition, and detecting whether a target clutch corresponding to the target gear finishes oil filling;
step D20, if yes, detecting whether a target synchronizer corresponding to the target gear is in the gear;
step D30, if yes, starting control of the target clutch is started, timing is conducted through a timer to obtain second starting time of the target clutch, and whether the second starting time is larger than preset starting time or not is detected;
and D40, if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
In the embodiment, after a starting instruction is received, a target gear is set according to a starting working condition, and whether the target clutch corresponding to the target gear finishes oil filling is detected; if yes, detecting whether a target synchronizer corresponding to the target gear is in the gear; if so, starting control of the target clutch is started, timing is carried out through a timer to obtain second starting time of the target clutch, and whether the second starting time is larger than preset starting time or not is detected; if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox; therefore, under the working condition that the target synchronizer of the target gear finishes gear engaging and the target clutch finishes oil charging, urgent driving starting is achieved, and driving experience is improved.
The respective steps will be described in detail below:
and D10, after receiving a starting instruction, setting a target gear according to a starting working condition, and detecting whether the target clutch corresponding to the target gear finishes oil filling.
In this embodiment, after a dual-clutch automatic Transmission Controller (TCU) receives a start instruction, a target gear is set according to a start condition, and whether oil charging of a target clutch corresponding to the target gear is completed is detected.
When the target gear is an odd gear, the corresponding target clutch is an odd clutch C1, and the corresponding target synchronizer is an odd shaft synchronizer; the available gears are even gears, the corresponding clutch is an even clutch C2, and the corresponding synchronizer is an even shaft synchronizer.
When the target gear is an even gear, the corresponding target clutch is an even clutch C2, and the corresponding target synchronizer is an even shaft synchronizer; the available gears are odd gears, the corresponding clutch is an odd clutch C1, and the corresponding synchronizer is an odd shaft synchronizer.
And D20, if yes, detecting whether a target synchronizer corresponding to the target gear is in the gear or not.
In this embodiment, when the dual clutch automatic Transmission Controller (TCU) detects that the target clutch corresponding to the target gear completes oil charging, it may further detect whether the target synchronizer of the target gear is in gear.
When a double-clutch automatic gearbox controller (TCU) detects that a target synchronizer is in a gear, the target clutch and the target synchronizer of the target gear meet a starting condition, and the target clutch and the target synchronizer of the target gear can be controlled to carry out starting control on the double-clutch automatic gearbox;
and when the double-clutch automatic gearbox controller (TCU) detects that the target synchronizer is not in the gear, the target synchronizer of the target gear does not meet the starting condition.
And D30, if so, entering the starting control of the target clutch, timing by using a timer to obtain second starting time of the target clutch, and detecting whether the second starting time is greater than preset starting time.
In this embodiment, when the dual clutch automatic Transmission Controller (TCU) detects that the target synchronizer is in the gear, it indicates that the target clutch and the target synchronizer in the target gear meet the start condition, and the target clutch and the target synchronizer in the target gear may be controlled to perform the start control of the dual clutch automatic transmission.
In the process of executing the starting control of the target clutch in the target gear, the starting time of the target clutch is timed through a timer so as to obtain corresponding second starting time, the second starting time is compared with the preset starting time, and whether the first starting time exceeds a set time limit value or not is confirmed in real time; the preset starting time is a preset starting time limit value.
And the second starting time is the starting time of the target clutch.
Further, in an embodiment, after step D30, the starting control method further includes: and D50, if yes, entering the starting fault mode of the target clutch.
In the embodiment, when a double-clutch automatic gearbox controller (TCU) detects that the second starting time exceeds the preset starting time, the target clutch starting fault mode is entered; that is, the dual clutch automatic Transmission Controller (TCU) is not able to control the target clutch to launch.
And D40, if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
In the embodiment, when the double-clutch automatic gearbox controller (TCU) detects that the second starting time is less than or equal to the preset starting time, the double-clutch automatic gearbox controller (TCU) controls a target synchronizer and a target clutch of a target gear to perform starting control on the double-clutch automatic gearbox; therefore, under the working condition that the target synchronizer of the target gear finishes gear engaging and the target clutch finishes oil filling, urgent driving starting is realized, and driving experience is improved.
In the embodiment, after a starting instruction is received, a target gear is set according to a starting working condition, and whether the target clutch corresponding to the target gear finishes oil filling is detected; if yes, detecting whether a target synchronizer corresponding to the target gear is in the gear or not; if so, starting control of the target clutch is started, timing is carried out through a timer to obtain second starting time of the target clutch, and whether the second starting time is larger than preset starting time or not is detected; if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox; therefore, under the working condition that the target synchronizer of the target gear finishes gear engaging and the target clutch finishes oil charging, urgent driving starting is achieved, and driving experience is improved.
Further, a fifth embodiment of the starting control method of the present invention is proposed based on the first, second, third, and fourth embodiments of the starting control method of the present invention.
The fifth embodiment of the starting control method is different from the first, second, third and fourth embodiments of the starting control method in that after the step of detecting whether the target synchronizer corresponding to the target gear is in the gear step D10, referring to fig. 8, the starting control method further includes:
step F10, if not, detecting whether the target synchronizer completes the gear engaging process of a preset component;
step F20, if yes, switching the target synchronizer to a rapid gear engaging mode, timing through the timer to obtain gear engaging time of the target synchronizer, and detecting whether the gear engaging time exceeds preset gear engaging time;
and F30, if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
In the embodiment, when the target synchronizer is detected not to be in the gear, whether the target synchronizer completes the gear engaging process of the preset component is detected; if yes, switching the target synchronizer to a fast gear engaging mode, timing through a timer to obtain gear engaging time of the target synchronizer, and detecting whether the gear engaging time exceeds preset gear engaging time; if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox; therefore, under the working condition that oil filling is completed by the target clutch of the target gear and the target synchronizer does not complete gear engagement, urgent driving starting is achieved, and driving experience is improved.
The respective steps will be described in detail below:
and F10, if not, detecting whether the target synchronizer finishes the gear engaging process with the preset component.
In the embodiment, when the double-clutch automatic gearbox controller (TCU) detects that the target synchronizer is not in gear, whether the target synchronizer completes the gear engaging process is further detected
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(ii) a Wherein the predetermined component is preferably during the engagement process
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When the target synchronizer completes the engagement process
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When the target synchronizer is about to finish the gear engagement, the target synchronizer can wait for a period of time for the target synchronizer to quickly engage.
Further, in this embodiment, after step F10, the starting control method further includes: and if not, switching the target gear to an available gear of the other transmission shaft of the double-clutch automatic gearbox, and controlling a synchronizer and a clutch corresponding to the available gear to perform temporary starting so as to transmit power in the starting process.
In the embodiment, when a double clutch automatic gearbox controller (TCU) detects that a target synchronizer does not complete a gear engaging process
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And when the target gear is switched to the available gear on the other transmission shaft of the double-clutch automatic gearbox, the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit power in the starting process.
And F20, if yes, switching the target synchronizer to a quick gear engaging mode, timing through the timer to obtain gear engaging time of the target synchronizer, and detecting whether the gear engaging time exceeds preset gear engaging time.
In this embodiment, when the target synchronizer completes the shift process
Figure 668008DEST_PATH_IMAGE001
When the target synchronizer is about to finish the gear engagement, the target synchronizer is switched to a fast gear engagement mode so that the target synchronizer can finish the gear engagement quickly; the method comprises the steps of timing through a timer to obtain the gear engaging time of a target synchronizer, and detecting whether the gear engaging time exceeds the preset gear engaging time.
The preset gear engaging time is a preset gear engaging time limit value.
Further, in this embodiment, after step F20, the starting control method further includes: and if so, entering the fault mode of the target synchronizer.
In this embodiment, when it is detected that the gear engagement time of the target synchronizer exceeds the preset gear engagement time, the dual-clutch automatic Transmission Controller (TCU) controls the target synchronizer to enter the target synchronizer failure mode, which means that the dual-clutch automatic Transmission Controller (TCU) cannot control the target synchronizer to complete starting.
And F30, if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
In the embodiment, when the fact that the gear engaging time of the target synchronizer is smaller than or equal to the preset gear engaging time is detected, a double-clutch automatic Transmission Controller (TCU) controls the target synchronizer and the target clutch to perform starting control on the double-clutch automatic transmission; therefore, under the working condition that oil charging is completed on the target clutch of the target gear and gear engagement is not completed on the target synchronizer, urgent driving starting is realized, and driving experience is improved.
In this embodiment, when it is detected that the target synchronizer is not in gear, it is detected whether the target synchronizer completes a gear engaging process of a preset component; if yes, switching the target synchronizer to a fast gear engaging mode, timing through a timer to obtain gear engaging time of the target synchronizer, and detecting whether the gear engaging time exceeds preset gear engaging time; if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox; therefore, under the working condition that oil charging is completed on the target clutch of the target gear and gear engagement is not completed on the target synchronizer, urgent driving starting is realized, and driving experience is improved.
Further, referring to fig. 9, fig. 9 is a flowchart illustrating a sixth embodiment of the starting control method according to the present invention.
When the vehicle starts, a double-clutch automatic gearbox controller (TCU) sets a target gear according to a starting working condition. When the starting target gear is the gear of the odd-numbered shaft synchronizer, executing a flowchart shown in fig. 9, which is detailed as follows:
it is confirmed whether the oil charge of the odd clutch C1 is completed.
And if the oil filling of the odd clutch C1 is finished, judging whether the synchronizer of the odd shaft target gear is in the gear or not.
If the synchronizer of the odd-numbered shaft target gear is in the gear, executing starting control of the odd-numbered clutch C1, and confirming whether the set time limit value is exceeded or not in real time in the starting control process of the odd-numbered clutch C1; if the time limit value is exceeded, entering an odd clutch C1 starting fault mode; and if the time limit value is not exceeded, continuing to execute the starting control of the odd-numbered clutch C1 until the starting control is finished.
If the synchronizer of the odd-shaft target gear is not in gear, whether the synchronizer of the odd-shaft target gear completes the gear engaging process is determined
Figure 449495DEST_PATH_IMAGE001
If synchronizer of odd-shaft target gear finishes the gear engaging process
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And when the odd-axle synchronizer is in the fast gear engaging mode, the odd-axle synchronizer is switched to the fast gear engaging mode, and the gear engaging is quickened to be completed by the odd-axle synchronizer through adopting specific gear engaging control data. Confirming whether the set gear engaging time limit value is exceeded or not in real time in the gear engaging process; if the gear engaging time limit value is exceeded, entering an odd-shaft synchronizer fault mode; and if the gear engagement time limit value is not exceeded, continuously executing gear engagement control of the synchronizer of the odd-shaft target gear until gear engagement control is completed. If odd axisThe synchroniser not completing the engagement process
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Then, the control is switched to the even-numbered axis temporary start control.
And if the odd clutch C1 does not finish oil filling, switching to an even shaft to perform temporary starting control.
And confirming whether the synchronizer of the available gears of the even number shafts is in the gear.
If the synchronizer of the even-numbered shaft available gear is not in the gear, the fact that no available starting gear exists currently is indicated, a double-clutch automatic gearbox controller (TCU) sends a torque limit request to an engine controller so as to prevent the engine from running away at the rotating speed, and meanwhile corresponding action time is strived for the synchronizer of the odd-numbered shaft target gear to be in the gear and oil filling of the odd-numbered clutch C1.
And if the synchronizer of the available even-numbered gear is in the gear, determining whether oil filling of the even-numbered clutch C2 is finished.
If the oil charge of the even-numbered clutch C2 is not completed, whether the oil charge completion degree of the even-numbered clutch C2 is greater than the oil charge completion degree of the odd-numbered clutch C1 is judged.
If the oil filling completion degree of the even clutch C2 is smaller than the oil filling completion degree of the odd clutch C1, it is indicated that the current double-clutch automatic gearbox controller (TCU) has no available power transmission gear, the double-clutch automatic gearbox controller (TCU) sends a torque limiting request to an engine controller to avoid the rotating speed of the engine from running away, and meanwhile, corresponding action time is strived for gear engagement of a synchronizer of the target gear of the odd shaft and oil filling of the odd clutch C1.
And if the oil filling completion degree of the even-numbered clutch C2 is greater than the oil filling completion degree of the odd-numbered clutch C1, entering a rapid oil filling mode of the even-numbered clutch C2, accelerating the execution of the oil filling process of the even-numbered clutch C2, and executing the temporary starting control of the even-numbered clutch C2.
And if the oil filling of the even-numbered clutch C2 is finished, executing temporary starting control of the even-numbered clutch C2, and temporarily transmitting power through the synchronizer of the available gear of the current even-numbered shaft to avoid the rotating speed of the engine from running away and meet the starting requirement of a driver as much as possible.
Confirming whether the set time limit value is exceeded or not in real time in the process of executing the temporary starting control of the even-numbered clutch C2; if the time limit value is exceeded, entering a starting fault mode of the even-numbered clutch C2; if the time limit value is not exceeded, whether the synchronizer of the odd-numbered shaft target gear is in the gear or not is confirmed in real time, if the synchronizer of the odd-numbered shaft target gear is in the gear and the odd-numbered clutch C1 finishes oil filling, the condition that the odd-numbered shaft synchronizer has power transmission is described, a double-clutch automatic gearbox controller (TCU) enters a power transfer mode from an even-numbered shaft to an odd-numbered shaft, the odd-numbered clutch C1 executes engagement control, and the even-numbered clutch C2 executes disengagement control, so that power transmission is transferred from the even-numbered shaft to the odd-numbered shaft.
In the process that power transmission is transferred from an even shaft to an odd shaft, a double-clutch automatic gearbox controller (TCU) gradually enters the starting process of the target gear of the odd shaft until the starting process is completed. Therefore, the problem of power interruption in the starting process is solved through the combined action of the odd-number clutch and the odd-number shaft synchronizer, urgent driving starting is realized, and the driving experience is improved.
Further, referring to fig. 10, fig. 10 is a flowchart illustrating a seventh embodiment of the startup control method according to the present invention.
When the vehicle starts, a double-clutch automatic gearbox controller (TCU) sets a target gear according to a starting working condition. When the starting target gear is the gear of the even-numbered shaft synchronizer, the flowchart shown in fig. 10 is executed, which is detailed as follows:
it is confirmed whether the even-numbered clutch C2 is filled with oil.
And if the oil filling of the even-numbered clutch C2 is finished, judging whether the synchronizer of the even-numbered shaft target gear is in the gear.
If the synchronizer of the even-numbered shaft target gear is in the gear, executing even-numbered clutch C2 starting control, and confirming whether the set time limit value is exceeded or not in real time in the process of executing the even-numbered clutch C2 starting control; if the time limit value is exceeded, entering a starting fault mode of an even clutch C2; and if the time limit value is not exceeded, continuing executing the even-numbered clutch C2 starting control until the starting control is finished.
If the synchronizer of the even-numbered shaft target gear is not in gear, whether the synchronizer of the even-numbered shaft target gear finishes the gear engaging process is determined
Figure 77550DEST_PATH_IMAGE001
If even-numbered shaft synchronizer completes the gear engaging process
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And when the gear is engaged, the even-number shaft synchronizer is switched into a quick gear engaging mode, and the gear engagement of the even-number shaft synchronizer is quickened by adopting specific gear engaging control data. Confirming whether the set gear engaging time limit value is exceeded or not in real time in the gear engaging process; if the gear engaging time limit value is exceeded, entering an even shaft synchronizer fault mode; and if the gear engagement time limit value is not exceeded, continuously executing gear engagement control of the synchronizer of the even-numbered axis target gear until gear engagement control is completed. If the even-shaft synchronizer does not complete the engaging process
Figure 488120DEST_PATH_IMAGE001
And then the control is switched to the odd-numbered shaft temporary starting control.
And if the even-numbered clutch C2 does not finish oil filling, switching to the odd-numbered shaft temporary starting control. And confirming whether the synchronizer of the available gear of the odd shaft is in the gear.
If the synchronizer of the available gear of the odd shaft is not in the gear, the synchronizer of the available gear of the odd shaft does not have the available starting gear, a double-clutch automatic gearbox controller (TCU) sends a torque-limiting request to an engine controller so as to prevent the rotating speed of the engine from running away, and simultaneously corresponding action time is strived for the engagement of the synchronizer of the target gear of the even shaft and the oil charge of the even clutch C2.
And if the synchronizer of the available gear of the odd shaft is in the gear, confirming whether oil filling of the odd clutch C1 is finished.
If the oil charging of the odd clutch C1 is not completed, whether the oil charging completion degree of the odd clutch C1 is greater than the oil charging completion degree of the even clutch C2 is judged.
If the oil filling completion degree of the odd-numbered clutch C1 is smaller than the oil filling completion degree of the even-numbered clutch C2, it is indicated that the current double-clutch automatic gearbox controller (TCU) has no available power transmission gear, the double-clutch automatic gearbox controller (TCU) sends a torque limiting request to an engine controller to avoid the rotating speed of the engine from running away, and meanwhile, corresponding action time is strived for gear engagement of a synchronizer of an even-numbered shaft target gear and oil filling of the even-numbered clutch C2.
And if the oil filling completion degree of the odd-numbered clutch C1 is greater than that of the even-numbered clutch C2, entering a quick oil filling mode of the odd-numbered clutch C1, accelerating the oil filling process of the odd-numbered clutch C1, and performing temporary starting control on the odd-numbered clutch C1.
And if the oil charging of the odd clutch C1 is finished, executing temporary starting control of the odd clutch C1, and temporarily transmitting power through the current available gear of the odd shaft to avoid the rotating speed of the engine from running away and meet the starting requirement of a driver as much as possible.
Confirming whether the set time limit value is exceeded or not in real time in the process of executing the temporary starting control of the odd-numbered clutch C1; if the time limit value is exceeded, entering a starting fault mode of the odd clutch C1; if the time limit is not exceeded, whether the synchronizer of the even-numbered shaft target gear is in the gear or not is confirmed in real time, if the synchronizer of the even-numbered shaft target gear is in the gear and the even-numbered clutch C2 finishes oil filling, the condition that the even-numbered shaft has power transmission is shown, a double-clutch automatic gearbox controller (TCU) enters a power transfer mode of the odd-numbered shaft to the even-numbered shaft, the even-numbered clutch C2 executes engagement control, the odd-numbered clutch C1 executes separation control, and power transmission is transferred from the odd-numbered shaft to the even-numbered shaft.
In the process that power transmission is transferred from the odd shaft to the even shaft, a double-clutch automatic gearbox controller (TCU) gradually enters the starting process of the target gear of the even shaft until the starting process is completed. Therefore, the problem of power interruption in the starting process is solved through the combined action of the even-number clutch and the even-number shaft synchronizer, the urgent driving starting is realized, and the driving experience is improved.
The invention also provides a starting control device. Referring to fig. 11, the starting control device of the present invention includes:
the transmission module 10 is configured to set a target gear according to a starting condition after receiving a starting instruction, temporarily switch the target gear to an available gear of another transmission shaft of the dual-clutch automatic transmission if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, and control the synchronizer and the clutch corresponding to the available gear to perform temporary starting so as to transmit power in a starting process;
and the starting module 20 is configured to switch the available gear to the target gear when it is detected that the target synchronizer and the target clutch corresponding to the target gear meet a starting condition, so as to control the target synchronizer and the target clutch to perform starting control on the dual-clutch automatic transmission.
Furthermore, the present invention also provides a medium, which is a computer-readable storage medium, having a startup control program stored thereon, where the startup control program, when executed by a processor, implements the steps of the startup control method as described above.
The method implemented when the start control program running on the processor is executed may refer to each embodiment of the start control method of the present invention, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A starting control method is characterized by being applied to a double-clutch automatic gearbox controller and comprising the following steps:
after a starting instruction is received, a target gear is set according to a starting working condition, if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, the target gear is temporarily switched to an available gear of the other transmission shaft of the double-clutch automatic transmission, and the synchronizer and the clutch corresponding to the available gear are controlled to perform temporary starting so as to transmit starting process power;
and when detecting that a target synchronizer and a target clutch corresponding to the target gear meet starting conditions, switching the available gear to the target gear to control the target synchronizer and the target clutch to carry out starting control on the double-clutch automatic gearbox.
2. The starting control method as claimed in claim 1, wherein the step of setting a target gear according to a starting condition after receiving a starting instruction, and if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, temporarily switching the target gear to an available gear of another transmission shaft of the dual clutch automatic transmission comprises the following steps:
after a starting instruction is received, setting a target gear according to a starting working condition, and detecting whether a target clutch corresponding to the target gear finishes oil filling;
if not, temporarily switching the target gear to an available gear of another transmission shaft of the double-clutch automatic transmission, and detecting whether a synchronizer corresponding to the available gear is in gear or not;
if yes, detecting whether the clutch corresponding to the available gear finishes oil filling;
and if so, controlling the synchronizer and the clutch corresponding to the available gear to perform temporary starting so as to transmit the starting process power.
3. The starting control method according to claim 2, wherein the step of detecting whether the synchronizer corresponding to the available gear is in gear further comprises:
if not, a torque limit request is sent to the engine controller.
4. The method as claimed in claim 2, wherein the step of detecting whether the clutch corresponding to the available gear is filled with oil is further followed by the step of:
if not, detecting whether the clutch oil filling completion degree is greater than the target clutch oil filling completion degree or not;
if so, controlling the clutch corresponding to the available gear to enter a quick oil filling mode;
if not, a torque limit request is sent to the engine controller.
5. The starting control method according to claim 1, wherein the step of switching the available gear to the target gear to control the target synchronizer and the target clutch to perform dual clutch automatic transmission starting control when detecting that the target synchronizer and the target clutch corresponding to the target gear meet the starting condition comprises the following steps of:
timing through a timer to obtain first starting time of the clutch, and detecting whether the first starting time is greater than preset starting time;
if not, detecting whether the target synchronizer is in gear or not;
and if the target synchronizer is in the gear and the target clutch finishes oil filling, entering a power transfer mode from the available gear to the target gear, controlling the target clutch to perform engagement and controlling the clutch to perform disengagement so as to control the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
6. The starting control method according to claim 1, further comprising, after the step of setting the target gear according to the starting condition after receiving the starting instruction, the step of:
after a starting instruction is received, setting a target gear according to a starting working condition, and detecting whether a target clutch corresponding to the target gear finishes oil filling;
if yes, detecting whether a target synchronizer corresponding to the target gear is in the gear;
if so, starting control of the target clutch is started, timing is carried out through a timer to obtain second starting time of the target clutch, and whether the second starting time is larger than preset starting time or not is detected;
if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
7. The starting control method according to claim 6, wherein the step of detecting whether the target synchronizer corresponding to the target gear is in gear further comprises:
if not, detecting whether the target synchronizer completes the gear engaging process of a preset component;
if yes, switching the target synchronizer to a fast gear engaging mode, timing through the timer to obtain gear engaging time of the target synchronizer, and detecting whether the gear engaging time exceeds preset gear engaging time;
and if not, controlling the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
8. A start control device characterized by comprising:
the transmission module is used for setting a target gear according to a starting condition after receiving a starting instruction, temporarily switching the target gear to an available gear of another transmission shaft of the double-clutch automatic gearbox if a target synchronizer and a target clutch corresponding to the target gear do not meet a starting condition, and controlling the synchronizer and the clutch corresponding to the available gear to temporarily start so as to transmit power in a starting process;
and the starting module is used for switching the available gear to the target gear when detecting that the target synchronizer and the target clutch corresponding to the target gear meet the starting condition so as to control the target synchronizer and the target clutch to perform starting control on the double-clutch automatic gearbox.
9. An apparatus that is a starting control apparatus, characterized by comprising: a memory, a processor and a take-off control program stored on the memory and executable on the processor, the take-off control program when executed by the processor implementing the steps of the take-off control method as claimed in any one of claims 1 to 7.
10. A medium that is a computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a take-off control program that, when executed by a processor, implements the steps of the take-off control method according to any one of claims 1 to 7.
CN202211060204.5A 2022-08-31 2022-08-31 Starting control method, device, equipment and medium Pending CN115355314A (en)

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Application publication date: 20221118