CN110360245B - Automatic control method and automatic control system of clutch - Google Patents

Automatic control method and automatic control system of clutch Download PDF

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Publication number
CN110360245B
CN110360245B CN201810321213.2A CN201810321213A CN110360245B CN 110360245 B CN110360245 B CN 110360245B CN 201810321213 A CN201810321213 A CN 201810321213A CN 110360245 B CN110360245 B CN 110360245B
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clutch
vehicle
automatic control
speed
driver
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CN110360245A (en
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翟亚普
李文涛
徐旭初
方伟荣
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/064—Control of electrically or electromagnetically actuated clutches
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • F16D2500/10406—Clutch position
    • F16D2500/10437—Power Take Off clutch
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/11—Application
    • F16D2500/1107—Vehicles
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/30401—On-off signal indicating the engage or disengaged position of the clutch
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/306—Signal inputs from the engine
    • F16D2500/3063—Engine fuel flow rate
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50224—Drive-off
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50293—Reduction of vibrations
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/512—Relating to the driver
    • F16D2500/5122—Improve passengers comfort
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/702—Look-up tables
    • F16D2500/70205—Clutch actuator
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70402—Actuator parameters
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70452—Engine parameters
    • F16D2500/70454—Engine speed

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The invention discloses an automatic control method and an automatic control system of a clutch, which are applied to an automobile provided with a manual transmission and used for controlling the separation and the connection of a traditional mechanical clutch. The automatic control method collects various information of the vehicle in real time and analyzes and processes the collected various vehicle information through the fuzzy control logic to obtain the clutch engaging speed, and the various information of the vehicle is not limited to vehicle speed information and engine rotating speed information, so that the complex and changeable running working condition of the vehicle can be fed back more truly, the control process is more reliable, and the clutch engagement is smoother and softer. And the intention of the driver is used as an operation basis for acquiring the engaging speed of the clutch, so that the clutch can more accurately respond to the operation requirement of the driver, the control performance of the vehicle is improved, and more flexible driving experience is brought to the driver.

Description

Automatic control method and automatic control system of clutch
Technical Field
The invention relates to the technical field of clutch control, in particular to an automatic control method and an automatic control system of a clutch.
Background
In a vehicle equipped with a manual transmission, power from an engine is transmitted to the transmission through a clutch. In the starting and gear shifting processes of the automobile, a clutch and an accelerator need to be operated in a matched mode, so that the driving difficulty is high; and the problems of torque fluctuation, vehicle bump and even flameout and the like can also occur in the starting and gear shifting processes, so that the driving experience of a driver is influenced.
In the prior art, the driving experience of a driver can be improved by configuring an automatic clutch for the automobile provided with the manual transmission.
However, the control system of the clutch in the prior art mainly performs single operation based on the vehicle speed and the engine speed, and cannot adapt to complex and variable operating conditions of the vehicle, so that the stability of the clutch in the combining process is still unsatisfactory.
In view of this, there is a need for further improvement of an automatic control system of a clutch, so as to improve the smoothness of the operation of the clutch and bring a more comfortable and relaxed driving experience to a driver.
Disclosure of Invention
In order to solve the technical problem, the invention provides an automatic control method of a clutch, which comprises the following steps:
s1, establishing a first corresponding relation table of the first information of the vehicle and the intention of the driver and a second corresponding relation of the intention of the driver, the second information of the vehicle and the engaging speed of the clutch;
s2, collecting various information of the vehicle in real time, wherein one part is first information of the vehicle, and the other part is second information of the vehicle;
s3, acquiring the intention of the driver by taking the acquired first information of the vehicle as an upper-layer input element according to the first corresponding relation table;
s4, taking the intention of the driver and the collected second information of the vehicle as lower-layer input elements, and obtaining the engaging speed of the clutch according to the second corresponding relation; and converting the clutch engagement speed to a simulated command signal;
and S5, executing the command signal.
The automatic control method provided by the invention is applied to an automobile provided with a manual transmission, and in the starting or driving process, a driver only needs to operate the gear shift lever and the accelerator, the clutch can automatically complete the separation and connection actions, the clutch does not need to be manually trodden, and the clutch and the accelerator do not need to be manually concerned about the matching operation, so that the problem of vehicle flameout caused by improper matching operation of the clutch and the accelerator in gear shifting is avoided, the gear shift operation performance of the automobile is effectively improved, and more comfortable and relaxed driving experience is brought to the driver.
In addition, the automatic control method provided by the invention collects various information of the vehicle in real time, and compared with the background technology, the automatic control method is not limited to vehicle speed information and engine rotating speed information, so that the complex and changeable running working conditions of the vehicle can be fed back more truly, the clutch is engaged more smoothly and softly, and the control process is more reliable. And the intention of the driver is used as an operation basis for acquiring the engaging speed of the clutch, so that the clutch can more accurately respond to the operation requirement of the driver, the control performance of the vehicle is improved, and more flexible driving experience is brought to the driver.
Optionally, the first vehicle information includes an accelerator opening and a throttle opening change rate.
Optionally, the vehicle second information includes a clutch speed ratio and a clutch stroke;
wherein the clutch rotation speed ratio is: dividing the difference between the speed of the driving disk of the clutch and the speed of the driven disk of the clutch by the speed of the driving disk of the clutch;
wherein the clutch stroke is: the distance between the initial position of the clutch during starting or shifting and the end position of the clutch after starting or shifting.
Optionally, the second correspondence includes a plurality of sub correspondence tables of clutch rotation speed ratio, clutch stroke, and clutch engagement speed, and different driver intentions correspond to different sub correspondence tables.
The invention also provides an automatic control system for realizing the automatic control method, which comprises the following modules:
the information acquisition module is used for acquiring the first information and the second information of the vehicle in real time;
the clutch control module comprises an upper layer control module preset with the first corresponding relation table, a lower layer control module preset with the second corresponding relation table and a converter; the upper control module acquires first information of the vehicle and correspondingly acquires the intention of the driver according to the first corresponding relation table; the lower-layer control module acquires second information of the vehicle and correspondingly acquires the clutch engaging speed according to the second corresponding relation; the converter converts the clutch engagement speed to an analog command signal;
the actuating mechanism assembly comprises an actuating mechanism controller and an actuating mechanism; and the actuator controller controls the actuator to act according to the command signal so as to drive the clutch to be engaged.
Optionally, the actuator is a motor; the actuating mechanism controller is a motor controller.
Optionally, the information acquisition module is a plurality of sensors.
Optionally, the sensor in communication with the upper control module of the plurality of sensors includes an accelerator opening sensor.
Optionally, the sensors of the plurality of sensors in communication with the lower layer control module include a vehicle speed sensor, an engine speed sensor, and a clutch position sensor.
The beneficial effects of the automatic control system provided by the invention are consistent with those of the automatic control method, and are not repeated herein.
Drawings
Fig. 1 is a schematic flow chart of an automatic control method for a clutch according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating an automatic control method of a clutch according to the present invention.
The automatic control method of the clutch provided by the invention comprises the following steps:
s1, establishing a first corresponding relation table of the first information of the vehicle and the intention of the driver, and a second corresponding relation of the intention of the driver, the second information of the vehicle and the engaging speed of the clutch.
And S2, collecting various information of the vehicle in real time, wherein one part is the first information of the vehicle, and the other part is the second information of the vehicle.
And S3, acquiring the intention of the driver by taking the collected first information of the vehicle as an upper-layer input element according to the first corresponding relation table.
S4, taking the intention of the driver and the collected second information of the vehicle as lower-layer input elements, and obtaining the engaging speed of the clutch according to the second corresponding relation; and converting the clutch engagement speed to a simulated command signal; in particular, the operation of this step can be triggered when the driver operates the gear shift lever.
And S5, executing the command signal to make the clutch operate at the clutch engaging speed.
The automatic control method provided by the invention is applied to a vehicle provided with a manual transmission to control the separation and the engagement of a traditional mechanical clutch. In the vehicle starting or driving process, a driver only needs to operate the gear shifting lever and the accelerator, the clutch can automatically complete the separation and engagement actions, the clutch is not needed to be manually trodden, the clutch and the accelerator are not needed to be manually concerned about the matching operation of the clutch and the accelerator, the problem of vehicle flameout caused by improper matching operation of the clutch and the accelerator during gear shifting is avoided, the gear shifting operation performance is effectively improved, and more comfortable and relaxed driving experience is brought to the driver.
Specifically, the first vehicle information includes an accelerator opening and a throttle opening change rate.
Specifically, the driver intent is:
in the starting stage, the intention of a driver can be divided into different starting intentions such as quick starting, normal starting, slow starting and the like;
in the driving stage, the intention of a driver can be divided into different driving intentions such as parking, deceleration, acceleration, normal driving and the like, and the different driving intentions correspond to different gear change requirements.
Specifically, taking the control process at the time of starting as an example, the first correspondence table may be configured as follows:
setting the argument range of the accelerator opening degree as {0, 1, 2, 3, 4, 5, 6, 7, 8 }; its fuzzy language set is set to { Very Small (VS), small (S), medium (M), large (B), very large (VB) }, and these five set elements are taken as upper-level input elements.
Setting the argument of the throttle opening change rate to be { -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6 }; its fuzzy language set is set as { large Negative (NB), medium Negative (NM), small Negative (NS), zero (O), small Positive (PS), medium Positive (PM), large Positive (PB) }, and these seven set elements are also used as upper-level input elements.
Setting the domain of discourse of the driver intention for marking the starting intention of the driver as {0, 1, 2, 3, 4, 5, 6 }; the fuzzy language set is set as { Very Slow (VS), slow (S), normal (M), fast (B), and very fast (VB) }, and the rule corresponding to the five set elements for identifying the accelerator opening and the seven set elements for identifying the accelerator opening change rate is the first correspondence table, which may be specifically as follows:
Figure GDA0003035001330000051
specifically, the second vehicle information includes a clutch rotation speed ratio and a clutch stroke;
wherein the clutch rotation speed ratio is: dividing the difference between the speed of the driving disk of the clutch and the speed of the driven disk of the clutch by the speed of the driving disk of the clutch;
wherein the clutch stroke is: the distance between the initial position of the clutch during starting or shifting and the end position of the clutch after starting or shifting.
Specifically, continuing to take the control process at the time of starting as an example, the second corresponding relationship may be configured as follows:
the discourse domain of the clutch speed ratio is set to {0, 1, 2, 3, 4, 5, 6}, the fuzzy language set of which is { Very Small (VS), small (LS), medium (M), Large (LB), large (B), very large (VB) }, and the seven set elements are taken as lower layer input elements.
The clutch range is set to {0, 1, 2, 3, 4, 5, 6}, the fuzzy language set is { Very Small (VS), small (LS), medium (M), Large (LB), large (B), very large (VB) }, and the seven set elements are also used as the lower input elements.
The universe of clutch engagement speeds is set to {0, 1, 2, 3, 4, 5, 6}, and the fuzzy language set is { Very Small (VS), small (LS), medium (M), Large (LB), large (B), very large (VB) }; the second correspondence relationship is a rule of correspondence between the five set elements for identifying the intention of the driver, the seven set elements for identifying the stroke of the clutch, and the seven set elements for identifying the rotational speed ratio of the clutch.
Specifically, the second correspondence includes a plurality of sub correspondence tables, the sub correspondence table is a correspondence between a clutch rotation speed ratio, a clutch stroke, and a clutch engagement speed, and different driver intentions correspond to different sub correspondence tables.
When the driver intention is identified by five set elements as described above, that is, when there are five driver intentions, correspondingly, there is a five-seed correspondence table. It should be understood that the intention of the driver is not limited to five types, and more types may be provided according to the actual application.
Wherein, when the driver intends to start at a Very Slow (VS), the corresponding first seed correspondence table is as follows in table 1:
table 1:
Figure GDA0003035001330000061
when the driver intends to start slowly (S), the corresponding second seed corresponding relation table is shown in the following table 2:
table 2:
Figure GDA0003035001330000071
wherein, when the driver intends to start normally (M), the corresponding third sub-correspondence table is as follows table 3:
table 3:
Figure GDA0003035001330000072
when the driver intends to take off suddenly (B), the corresponding fourth sub-correspondence table is shown in the following table 4:
table 4:
Figure GDA0003035001330000081
wherein, when the driver intends to start in an emergency (VB), the corresponding fifth seed corresponding relation table is shown in the following table 5:
table 5:
Figure GDA0003035001330000082
therefore, the automatic control method provided by the invention obtains the intention of the driver through fuzzy operation, and takes the obtained intention of the driver as the operation basis for obtaining the engaging speed of the clutch, so that the clutch can more accurately respond to the operation requirement of the driver, the control performance of the vehicle is improved, and more flexible driving experience is brought to the driver.
The clutch stroke and the clutch rotating speed ratio are detected in real time and are also used as an operation basis for acquiring the clutch engaging speed, so that the engaging speed of the clutch is higher in the stage of overcoming the clutch free stroke, and the response speed of the clutch in the gear shifting process is accelerated; in the initial engaging state of the clutch, the engaging speed of the clutch can be slower so as to reduce the slip film work in the engaging process; the engagement speed of the clutch can be faster in the near-fully engaged state of the clutch.
Of course, the configuration of the above-described first correspondence table and second correspondence table is not limited to the above-described embodiment, and the settings of the fuzzy language set of the vehicle first information, the vehicle second information, the driver's intention, and the clutch engagement speed are also exemplary.
In addition, the invention also provides an automatic control system of the clutch, which is used for realizing the automatic control method.
The automatic control system comprises the following modules:
the information acquisition module is used for acquiring the first information and the second information of the vehicle in real time;
the clutch control module comprises an upper layer control module preset with the first corresponding relation table, a lower layer control module preset with the second corresponding relation table and a converter; the upper control module acquires first information of the vehicle and correspondingly acquires the intention of the driver according to the first corresponding relation table; the lower-layer control module acquires second information of the vehicle and correspondingly acquires the clutch engaging speed according to the second corresponding relation; the converter converts the clutch engagement speed to an analog command signal;
the actuating mechanism assembly comprises an actuating mechanism controller and an actuating mechanism; and the actuating mechanism controller controls the actuating mechanism to act according to the command signal so as to drive the clutch to act.
Specifically, the actuating mechanism is a motor; the actuating mechanism controller is a motor controller.
Specifically, the information acquisition module comprises a plurality of sensors.
Among the plurality of sensors, the sensor in communication with the upper control module comprises an accelerator opening sensor.
Among the sensors, the sensor which is communicated with the lower layer control module comprises a vehicle speed sensor and is used for obtaining the speed of a driving disc of the clutch; an engine speed sensor for obtaining clutch driven disc speed; and the clutch position sensor is used for acquiring the clutch stroke.
Further, the sensor communicating with the lower layer control module may further include a temperature sensor detecting a temperature of the driving disk and a temperature of the driven disk of the clutch and an oil pressure sensor detecting a pressure of the driving disk and a pressure of the driven disk of the clutch to further correct a position of the clutch, thereby improving accuracy and reliability of control.
In addition, the automatic control system provided by the invention can also be provided with a gear sensor, the gear sensor is communicated with the clutch control module, and the clutch control module judges whether the command signal needs to be sent according to a gear signal transmitted by the gear sensor, namely the gear signal is used as a trigger signal of the clutch control module.
Of course, instead of obtaining the required vehicle information via sensors currently provided for the present automatic control system, it is also possible to directly communicate with the existing electronic control system (ECU) of the vehicle. For example, the clutch control module may be configured to interact with the ECU to obtain vehicle speed information and engine speed information.
The automatic control method and the automatic control system of the clutch provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (6)

1. An automatic control method of a clutch, characterized by comprising the steps of:
s1, establishing a first corresponding relation table of the accelerator opening and the throttle opening change rate and the intention of a driver;
the establishment process is as follows: constructing a fuzzy language set of the intention of a driver, constructing a fuzzy language set of the accelerator opening change rate, and corresponding each set element in the three fuzzy language sets into a table;
establishing a plurality of sub-corresponding relation tables of the rotating speed ratio of the clutch, the stroke of the clutch and the engaging speed of the clutch;
the establishment process is as follows: constructing a fuzzy language set of the rotating speed ratio of the clutch, constructing a fuzzy language set of the stroke of the clutch, constructing a fuzzy language set of the engaging speed of the clutch, and corresponding each set element in the three fuzzy language sets into a table;
wherein the clutch rotation speed ratio is: dividing the difference between the speed of the driving disk of the clutch and the speed of the driven disk of the clutch by the speed of the driving disk of the clutch; the clutch stroke is as follows: the distance between the initial position of the clutch during starting or gear shifting and the final position of the clutch after starting or gear shifting is finished;
different driver intentions correspond to different sub-corresponding relation tables;
s2, acquiring the accelerator opening, the throttle opening change rate, the clutch rotation speed ratio, the clutch stroke and the clutch engaging speed of the vehicle in real time;
s3, taking the current throttle opening and the throttle opening change rate as upper-layer input elements, and obtaining the current driver intention according to the first corresponding relation table;
s4, taking the current driver intention as a lower-layer input element, and finding a sub-corresponding relation table corresponding to the current driver intention;
taking the current clutch rotating speed ratio and the current clutch stroke as lower-layer input elements, and obtaining the clutch engaging speed according to a sub-corresponding relation table corresponding to the current driver intention; and converting the clutch engagement speed to a simulated command signal;
and S5, executing the command signal.
2. An automatic control system implementing the automatic control method according to claim 1, characterized in that the automatic control system comprises the following modules:
the information acquisition module is used for acquiring the opening of an accelerator, the change rate of the opening of the accelerator, the rotating speed ratio of a clutch, the stroke of the clutch and the engaging speed of the clutch in real time;
the clutch control module comprises an upper layer control module preset with the first corresponding relation table, a lower layer control module preset with each sub corresponding relation table and a converter; the upper control module acquires the accelerator opening and the accelerator opening change rate of the vehicle and correspondingly acquires the intention of the driver according to the first corresponding relation table; the lower-layer control module acquires the clutch rotating speed ratio and the clutch stroke of the vehicle and correspondingly acquires the clutch engaging speed according to the sub-corresponding relation table; the converter converts the clutch engagement speed to a simulated command signal;
the actuating mechanism assembly comprises an actuating mechanism controller and an actuating mechanism; and the actuating mechanism controller controls the actuating mechanism to act according to the command signal so as to drive the clutch to act.
3. The automatic control system of claim 2, wherein the actuator is a motor; the actuating mechanism controller is a motor controller.
4. The automatic control system of claim 2, wherein the information collection module is a plurality of sensors.
5. The automatic control system of claim 4, wherein the sensors of the plurality of sensors in communication with the upper level control module comprise throttle opening sensors.
6. The automatic control system of claim 4, wherein the sensors of the plurality of sensors in communication with the underlying control module include a vehicle speed sensor, an engine speed sensor, and a clutch position sensor.
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