CN108099892B - A semi-automatic assembly system and its control method - Google Patents

Abstract

the invention provides a semi-automatic assembly system and a control method thereof, wherein the system consists of a power source, an automatic clutch, a manual transmission and a power assembly controller, compared with the traditional power assembly, the system greatly reduces the operation intensity of a driver, compared with a new energy power assembly, the system has a simple structure, and the reliability is improved. In addition, aiming at the starting control of the semi-automatic assembly control system, the shifting handle is opened, namely the automatic clutch is controlled to be separated, after a starting gear is hung, namely the automatic clutch is controlled to be close to a sliding friction point, and after a hand brake and a brake are released, the combination of an automatic clutch pressure plate and a driven plate is controlled by using the opening degree of an accelerator, so that the starting comfort and the starting power are both considered, and the semi-automatic assembly control system has the function of preventing a vehicle from sliding down a slope. Aiming at the gear shifting control of the semi-automatic assembly control system, the automatic clutch is controlled to be separated when the gear shifting handle is started, and the automatic clutch is controlled to be combined after the gear is hung. The gear shifting process fully reserves the gear shifting operation process of the manual gear, and the trouble can not be caused to a driver.

Description

A semi-automatic assembly system and its control method

technical field

The invention relates to the technical field of automobiles, more specifically, to a semi-automatic assembly system and a control method thereof.

Background technique

Traditional powertrain includes power source, manual clutch and manual transmission, while new energy powertrain includes power source, automatic clutch and automatic transmission.

For the driver, the operation of the traditional powertrain is complex, especially in congested roads, which can easily cause driving fatigue or even mistakes; while the application of new energy powertrains, especially the automatic transmission, reduces the difficulty of operation, but due to its structure Complex, high probability of failure, poor reliability.

Contents of the invention

In view of this, the present invention provides a semi-automatic assembly system and its control method to solve the problems of complex operation of the traditional power assembly and high failure probability of the new energy power assembly. The technical solution is as follows:

A semi-automatic assembly control system, comprising: a power source, an automatic clutch, a manual transmission and a power assembly controller, the manual transmission is provided with a first sensor and a second sensor; wherein,

The first sensor is used to detect the switch state of the shift handle of the manual transmission, and the second sensor is used to detect the gear state of the shift handle;

The power source is connected to the automatic clutch through an output shaft, the automatic clutch is connected to the manual transmission through a driven shaft, and the powertrain controller is respectively connected to the power source, the automatic clutch, the the first sensor is connected to the second sensor;

The first sensor sends the switching state of the shift handle to the powertrain controller;

The second sensor sends the gear state of the shift handle to the powertrain controller;

The powertrain controller controls the pressure plate and the driven plate of the automatic clutch to switch from the engaged state to the disengaged state when the shift handle is in the open state, and judges the Whether the shift handle is hung into the gear position; when the shift handle is hung into the gear position, it is judged whether the gear shifted by the shift handle is the starting gear; if the gear shifted by the shift handle is The position is the starting gear, and the pressure plate and the driven plate of the automatic clutch are controlled to be combined to the first preset clutch position, and the first preset clutch position is greater than the slipping point position of the automatic clutch; in the handbrake In the open state and the depth value of the brake pedal is less than the depth threshold value, the pressure plate and the driven plate of the automatic clutch are controlled to be combined to the second preset clutch position according to the depth value of the accelerator pedal, and the second preset clutch The position is used to characterize the position where the pressure plate of the automatic clutch and the driven plate are completely combined; if the gear shifted by the shift handle is not the starting gear, according to the output shaft speed and The gear shifted by the shift handle controls the combination of the pressure plate and the driven plate of the automatic clutch to a second preset clutch position, and the second preset clutch position is used to represent the pressure plate of the automatic clutch Fully integrated position with the driven plate.

Preferably, it also includes: a locking device arranged on the manual transmission;

The locking device locks the shift handle when the shift handle is in a closed state.

Preferably, the powertrain controller controls the pressure plate and the driven plate of the automatic clutch to be combined to the second preset clutch position according to the depth value of the accelerator pedal for:

Determine the starting required speed of the power source and the starting coupling speed of the automatic clutch according to the depth value of the accelerator pedal; determine whether the current coupling position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position; When the current combined position is not equal to the second preset clutch position, obtain the current rotational speed of the power source, and judge whether the current rotational speed is less than a set required rotational speed, and the set required rotational speed is less than or equal to the Starting required speed; if the current rotating speed is not less than the set required rotating speed, control the pressure plate and driven plate of the automatic clutch to combine according to the starting combined speed, and return to execute the function of disconnecting the automatic clutch Whether the current combined position of the pressure plate and the driven plate is equal to the second preset clutch position, this step; if the current speed is less than the set required speed, control the pressure plate of the automatic clutch and the driven plate to separate to The first preset clutch position, and return to the step of obtaining the current rotational speed of the power source.

Preferably, the powertrain controller controls the pressure plate and the driven plate of the automatic clutch to be coupled to the second preset clutch according to the output shaft speed of the manual transmission and the gear shifted by the shift handle location for:

Calculate the shift target speed of the power source according to the speed of the output shaft of the manual transmission and the gear in which the shift handle is engaged; obtain the current speed of the power source, and determine the relationship between the current speed and the Whether the difference of the shift target speed is within the preset allowable range; if the difference is within the preset allowable range, it is judged whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second Preset clutch position; when the current combined position is not equal to the second preset clutch position, determine the shifting speed of the automatic clutch according to the difference; control the speed of the automatic clutch according to the shifting speed The pressure plate and the driven plate are combined, and return to the step of judging whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position; if the difference is not within the Control the speed of the power source within the preset allowable range, and return to the step of obtaining the current speed of the power source.

Preferably, the power source includes: an engine.

Preferably, the power source further includes: a motor.

Preferably, the driving method of the automatic clutch includes: electro-pneumatic or electro-hydraulic.

A control method, applied to a semi-automatic assembly control system, the system includes a power source, an automatic clutch, a manual transmission and a power assembly controller, and the manual transmission is provided with a first sensor and a second sensor; wherein, the The first sensor is used to detect the switch state of the shift handle of the manual transmission, and the second sensor is used to detect the gear state of the shift handle; the power source is connected to the automatic clutch through an output shaft , the automatic clutch is connected with the manual transmission through a driven shaft, and the powertrain controller is respectively connected with the power source, the automatic clutch, the first sensor and the second sensor; the A method applied to the powertrain controller includes:

When the shift handle is in the open state, control the pressure plate and the driven plate of the automatic clutch to switch from the combined state to the disengaged state, and judge whether the shift handle is in gear according to the gear state bit;

When the shift handle is engaged in a gear position, it is judged whether the gear position in which the shift handle is engaged is a starting gear;

If the gear shifted by the shift handle is the starting gear, the pressure plate and the driven plate of the automatic clutch are controlled to be combined to the first preset clutch position, and the first preset clutch position is greater than the set The position of the slipping point of the automatic clutch;

When the handbrake is on and the depth value of the brake pedal is less than the depth threshold value, the pressure plate and the driven plate of the automatic clutch are controlled to be combined to the second preset clutch position according to the depth value of the accelerator pedal. The position of the clutch is used to characterize the position where the pressure plate of the automatic clutch and the driven plate are fully combined;

If the gear in which the shift handle is engaged is not the starting gear, control the pressure plate and The driven plate is engaged to a second preset clutch position, which is used to characterize the fully engaged position of the pressure plate and the driven plate of the automatic clutch.

Preferably, controlling the pressure plate and the driven plate of the automatic clutch to be combined to the second preset clutch position according to the depth value of the accelerator pedal includes:

determining the starting required speed of the power source and the starting coupling speed of the automatic clutch according to the depth value of the accelerator pedal;

judging whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position;

When the current combined position is not equal to the second preset clutch position, obtain the current rotational speed of the power source, and judge whether the current rotational speed is less than a set required rotational speed, and the set required rotational speed is less than or equal to the Starting speed required;

If the current rotation speed is not less than the set required rotation speed, control the pressure plate and the driven plate of the automatic clutch to combine according to the starting combination speed, and return to execute the disconnection of the pressure plate and the driven plate of the automatic clutch. Whether the current combined position of the moving disc is equal to the second preset clutch position, this step;

If the current rotational speed is less than the set required rotational speed, control the pressure plate and the driven plate of the automatic clutch to separate to the first preset clutch position, and return to perform the acquisition of the current rotational speed of the power source, this step.

Preferably, controlling the combination of the pressure plate and the driven plate of the automatic clutch to the second preset clutch position according to the output shaft speed of the manual transmission and the gear shifted by the shift handle includes:

calculating the shift target speed of the power source according to the speed of the output shaft of the manual transmission and the gear in which the shift handle is engaged;

Obtaining the current rotational speed of the power source, and judging whether the difference between the current rotational speed and the shift target rotational speed is within a preset allowable range;

If the difference is within the preset allowable range, judging whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position;

When the current engagement position is not equal to the second preset clutch position, determining the shift engagement speed of the automatic clutch according to the difference;

Control the pressure plate of the automatic clutch and the driven plate to combine according to the shifting speed, and return to the execution of the judgment whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position, this step;

If the difference is not within the preset allowable range, control the speed of the power source, and return to the step of obtaining the current speed of the power source.

Compared with the prior art, the beneficial effects realized by the present invention are:

The above semi-automatic assembly control system provided by the present invention is composed of a power source, an automatic clutch, a manual transmission and a power assembly controller. Compared with a traditional power assembly, the driver's operating intensity is greatly reduced. Because the structure of the new energy powertrain is simple, the reliability is increased.

In addition, for the starting control of the semi-automatic assembly control system, the automatic clutch is controlled to disengage when the shift handle is turned on. After the starting gear is engaged, the automatic clutch is controlled to approach the slipping point. After the handbrake and brake are released, the accelerator opening is used to control the The combination of the automatic clutch pressure plate and the driven plate takes into account the comfort and power of starting, and also has the function of preventing the vehicle from slipping.

For the shift control of the semi-automatic assembly control system, when the shift handle is turned on, the automatic clutch is controlled to disengage, and after the gear is engaged, the automatic clutch is controlled to engage. The shifting process fully retains the manual shifting operation process, and will not cause trouble to the driver.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a schematic structural diagram of a semi-automatic assembly control system provided by an embodiment of the present invention;

Fig. 2 is a method flowchart of a control method provided by an embodiment of the present invention;

Fig. 3 is a partial method flowchart of the control method provided by the embodiment of the present invention;

Fig. 4 is a flow chart of a part of the control method provided by the embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

ISG motor: Integrated starter and generator motor, a motor with starting and generating functions;

Clutch slipping point: The position where the clutch driven plate and the pressure plate just come into contact. When the clutch position is less than the slipping point, the clutch can transmit the power of the power source to the wheels, and the power transmitted by the clutch is different in different joint positions; when the clutch position is greater than the slipping point, the clutch cannot transmit power.

The embodiment of the present invention provides a semi-automatic assembly control system, the structural diagram of which is shown in Figure 1, including: a power source 10, an automatic clutch 20, a manual transmission 30 and a power assembly controller 40, and the manual transmission 30 is provided with There are a first sensor (not shown in Figure 1) and a second sensor (not shown in Figure 1); wherein,

The first sensor is used to detect the switch state of the shift handle of the manual transmission 30, and the second sensor is used to detect the gear state of the shift handle;

The power source 10 is connected to the automatic clutch 20 through the output shaft, the automatic clutch 20 is connected to the manual transmission 30 through the driven shaft, and the powertrain controller 40 is connected to the power source 10, the automatic clutch 20, the first sensor and the second sensor respectively;

The first sensor sends the switch state of the shift handle to the powertrain controller;

The second sensor sends the gear status of the shift handle to the powertrain controller;

Figure 2 provides a flow chart of a control method implemented on a semi-automatic assembly control system, which can be described in detail in conjunction with the structural embodiment of the semi-automatic assembly control system shown in Figure 1, the power assembly controller according to Follow the steps below to control:

S10, when it is detected that the shift handle is in the open state, control the pressure plate and driven plate of the automatic clutch to switch from the combined state to the disengaged state, and judge whether the shift handle is engaged in the gear according to the gear state; When the gear handle is engaged in gear, step S20 is performed;

In this embodiment, a switch can be arranged on the shift handle, and the driver must touch the switch before shifting gears. This enables the powertrain controller to obtain the driver's shift intention before the driver operates the shift handle to shift gears, thereby preventing the driver from forcibly shifting gears before the clutch is disengaged and causing damage to the manual transmission. In the actual application process, a locking device may be provided on the manual transmission, and the locking device locks the shift handle when the shift handle is in a closed state.

In this embodiment, if the shift handle is not engaged in a gear, no operation is performed.

S20, judging whether the gear placed by the shift handle is the starting gear; if the gear placed by the shift handle is the starting gear, perform step S30; if the gear placed by the shift handle is not the starting gear gear, execute step S50;

S30, controlling the combination of the pressure plate and the driven plate of the automatic clutch to a first preset clutch position, where the first preset clutch position is greater than the slipping point position of the automatic clutch;

S40, when the handbrake is on and the depth value of the brake pedal is less than the depth threshold value, control the pressure plate and the driven plate of the automatic clutch to be combined to a second preset clutch position according to the depth value of the accelerator pedal, the second preset Let the clutch position be used to characterize the fully combined position of the pressure plate and the driven plate of the automatic clutch;

In this embodiment, if the handbrake is off or the depth of the brake pedal is not less than the depth threshold, it means that the driver has not released the handbrake and foot brake, and the position of the automatic clutch remains unchanged.

In the specific implementation process, the process of "controlling the pressure plate and the driven plate of the automatic clutch to be combined to the second preset clutch position according to the depth value of the accelerator pedal" in step S40 can specifically adopt the following steps, the method flow chart is as follows As shown in Figure 3:

S401, according to the depth value of the accelerator pedal, determine the starting required speed of the power source and the starting combined speed of the automatic clutch;

In this embodiment, for the depth values of different accelerator pedals, the starting required speed of the corresponding power source and the starting combined speed of the automatic clutch can be preset, and the corresponding relationship between them can exist in the form of a MAP table, or in the form of a curve. This embodiment does not make specific limitations.

S402, judging whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position; when the current combined position is not equal to the second preset clutch position, execute step S403;

S403, obtain the current speed of the power source, and judge whether the current speed is less than the set required speed, and the set required speed is less than or equal to the starting required speed; if the current speed is not less than the set required speed, perform step S404; if the current speed is less than Set the required rotational speed, execute step S405;

S404, control the pressure plate and the driven plate of the automatic clutch to combine according to the starting combination speed, and return to step S402;

S405, control the pressure plate and the driven plate of the automatic clutch to separate to the first preset clutch position, and return to step S403.

S50, control the pressure plate and the driven plate of the automatic clutch to be combined to the second preset clutch position according to the output shaft speed of the manual transmission and the gear that the shift handle is engaged in, and the second preset clutch position is used to represent the automatic The position where the pressure plate of the clutch and the driven plate are fully combined;

In the specific implementation process, the process of "controlling the pressure plate and driven plate of the automatic clutch to be combined to the second preset clutch position according to the output shaft speed of the manual transmission and the gear shifted by the shift handle" in step S50 can be Specifically, the following steps are adopted, and the flow chart of the method is shown in Figure 4:

S501. Calculate the shift target speed of the power source according to the speed of the output shaft of the manual transmission and the gear in which the shift handle is engaged;

During the execution of step S501, the gear ratio of the gear can be determined according to the gear in which the shift handle is engaged, and then the product of the output shaft speed of the manual transmission and the gear ratio is used as the shift target speed of the power source.

S502. Obtain the current speed of the power source, and judge whether the difference between the current speed and the shift target speed is within the preset allowable range; if the difference is within the preset allowable range, perform step S503; if the difference is not within the preset allowable range within the range, execute step S506;

S503, judging whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position; when the current combined position is not equal to the second preset clutch position, execute step S503;

S504, determining the gear shifting speed of the automatic clutch according to the difference;

In this embodiment, for different differences, the shifting speed of the corresponding automatic clutch can be preset, and the corresponding relationship between them can exist in the form of a MAP table or in the form of a curve, which is not specifically limited in this embodiment.

S505, control the pressure plate of the automatic clutch and the driven plate to combine according to the gear shifting speed, and return to step S503;

S506, control the power source to adjust the speed, and return to step S502.

During the execution of step S505, the rotational speed of the power source can be controlled to continuously approach the target rotational speed of gear shifting according to the preset speed regulation step.

In this embodiment, the power source may be a single power source, such as an engine, or a hybrid power source of an engine and a motor, wherein the motor may specifically be an ISG motor.

In addition, the driving mode of the automatic clutch includes but not limited to electro-pneumatic or electro-hydraulic.

For electro-pneumatic, the pneumatic actuator needs solenoid valves to control the intake and exhaust; while for electro-hydraulic, the hydraulic actuator needs a hydraulic motor. Both the solenoid valve and the hydraulic motor need electricity, so they are called electronic control. Compared with electro-hydraulic, electro-pneumatic has lower cost and simpler control, but it also has the disadvantage of low control accuracy.

The above steps S401 to S405 are only a preferred example of the process of "controlling the pressure plate and driven plate of the automatic clutch to be combined to the second preset clutch position according to the depth value of the accelerator pedal" in step S40 of the embodiment of the present application. The implementation method, the specific implementation method of this process can be set arbitrarily according to one's own needs, and is not limited here.

The above steps S501 to S506 are only the step S50 in the embodiment of the present application "according to the output shaft speed of the manual transmission and the gear shifted by the shift handle to control the pressure plate and driven plate of the automatic clutch to be combined with the second preset clutch. A preferred implementation of the process of "location", the specific implementation of this process can be set arbitrarily according to one's own needs, and is not limited here.

The semi-automatic assembly control system provided by this embodiment is composed of a power source, an automatic clutch, a manual transmission, and a power assembly controller. The new energy powertrain has a simple structure and increases reliability.

In addition, for the starting control of the semi-automatic assembly control system, the automatic clutch is controlled to disengage when the shift handle is turned on. After the starting gear is engaged, the automatic clutch is controlled to approach the slipping point. After the handbrake and brake are released, the accelerator opening is used to control the The combination of the automatic clutch pressure plate and the driven plate takes into account the comfort and power of starting, and also has the function of preventing the vehicle from slipping.

For the shift control of the semi-automatic assembly control system, when the shift handle is turned on, the automatic clutch is controlled to disengage, and after the gear is engaged, the automatic clutch is controlled to engage. The shifting process fully retains the manual shifting operation process, and will not cause trouble to the driver.

A semi-automatic assembly system provided by the present invention and its control method have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the present invention. The method of the invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be understood To limit the present invention.

It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts in each embodiment, refer to each other, that is, Can. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related part, please refer to the description of the method part.

It should also be noted that in this article, relational terms such as first and second etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations Any such actual relationship or order exists between. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that elements inherent in a process, method, article, or apparatus comprising a set of elements are included, or are also included as such , method, article or device inherent in the elements. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A semi-automatic assembly control system, characterized in that it comprises: a power source, an automatic clutch, a manual transmission and a power assembly controller, the manual transmission is provided with a first sensor and a second sensor; wherein, The first sensor is used to detect the switch state of the shift handle of the manual transmission, and the second sensor is used to detect the gear state of the shift handle; The power source is connected to the automatic clutch through an output shaft, the automatic clutch is connected to the manual transmission through a driven shaft, and the powertrain controller is respectively connected to the power source, the automatic clutch, the the first sensor is connected to the second sensor; The first sensor sends the switching state of the shift handle to the powertrain controller; The second sensor sends the gear state of the shift handle to the powertrain controller; When the powertrain controller detects that the shift handle is in the open state, it controls the pressure plate and the driven plate of the automatic clutch to switch from the engaged state to the disengaged state, and judges according to the gear state Whether the shift handle is in gear; when the shift handle is in gear, judge whether the gear in which the shift handle is in is the starting gear; if the shift handle is in The gear is the starting gear, and the pressure plate and the driven plate of the automatic clutch are controlled to be combined to a first preset clutch position, and the first preset clutch position is greater than the slipping point position of the automatic clutch; When the handbrake is on and the depth value of the brake pedal is less than the depth threshold value, the pressure plate and the driven plate of the automatic clutch are controlled to be combined to the second preset clutch position according to the depth value of the accelerator pedal. The clutch position is used to characterize the position where the pressure plate of the automatic clutch and the driven plate are fully combined; if the gear in which the shift handle is engaged is not the starting gear, according to the output shaft of the manual transmission The rotation speed and the gear position of the shift handle control the pressure plate and the driven plate of the automatic clutch to be combined to the second preset clutch position, and the second preset clutch position is used to represent the automatic clutch The position where the pressure plate and driven plate are fully combined. 2. The control system according to claim 1, further comprising: a locking device arranged on the manual transmission; The locking device locks the shift handle when the shift handle is in a closed state. 3. The system according to claim 1, wherein the powertrain controller controls the pressure plate and the driven plate of the automatic clutch to be combined to the second preset clutch position according to the depth value of the accelerator pedal, using At: Determine the starting required speed of the power source and the starting coupling speed of the automatic clutch according to the depth value of the accelerator pedal; determine whether the current coupling position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position; When the current combined position is not equal to the second preset clutch position, obtain the current rotational speed of the power source, and judge whether the current rotational speed is less than a set required rotational speed, and the set required rotational speed is less than or equal to the Start demand speed; if the current speed is not less than the set demand speed, control the pressure plate and driven plate of the automatic clutch according to the start combination speed to combine, and return to execute the judgment of the automatic clutch Whether the current combined position of the pressure plate and the driven plate is equal to the second preset clutch position, this step; if the current speed is less than the set required speed, control the pressure plate of the automatic clutch and the driven plate to separate to The first preset clutch position, and return to the step of obtaining the current rotational speed of the power source. 4. The system according to claim 1, wherein the powertrain controller controls the pressure of the automatic clutch according to the rotation speed of the output shaft of the manual transmission and the gear in which the shift handle is engaged. The disc and driven disc combine to a second preset clutch position for: Calculate the shift target speed of the power source according to the speed of the output shaft of the manual transmission and the gear in which the shift handle is engaged; obtain the current speed of the power source, and determine the relationship between the current speed and the Whether the difference of the shift target speed is within the preset allowable range; if the difference is within the preset allowable range, it is judged whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second Preset clutch position; when the current combined position is not equal to the second preset clutch position, determine the shifting speed of the automatic clutch according to the difference; control the speed of the automatic clutch according to the shifting speed The pressure plate and the driven plate are combined, and return to the step of judging whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position; if the difference is not within the Control the speed of the power source within the preset allowable range, and return to the step of obtaining the current speed of the power source. 5. The system according to claim 1, wherein the power source comprises: an engine. 6. The system according to claim 5, wherein the power source further comprises: a motor. 7. The system according to claim 1, wherein the driving method of the automatic clutch includes: electro-pneumatic or electro-hydraulic. 8. A control method, characterized in that it is applied to a semi-automatic assembly control system, the system includes a power source, an automatic clutch, a manual transmission and a power assembly controller, and the manual transmission is provided with a first sensor and a second Two sensors; wherein, the first sensor is used to detect the switch state of the shift handle of the manual transmission, and the second sensor is used to detect the gear state of the shift handle; the power source passes through the output shaft connected with the automatic clutch, the automatic clutch is connected with the manual transmission through a driven shaft, and the powertrain controller is respectively connected with the power source, the automatic clutch, the first sensor and the second The two sensors are connected; the method is applied to the powertrain controller, including: When the shift handle is in the open state, control the pressure plate and the driven plate of the automatic clutch to switch from the combined state to the disengaged state, and judge whether the shift handle is in gear according to the gear state bit; When the shift handle is engaged in a gear position, it is judged whether the gear position in which the shift handle is engaged is a starting gear; If the gear shifted by the shift handle is the starting gear, the pressure plate and the driven plate of the automatic clutch are controlled to be combined to the first preset clutch position, and the first preset clutch position is greater than the set The position of the slipping point of the automatic clutch; When the handbrake is on and the depth value of the brake pedal is less than the depth threshold value, the pressure plate and the driven plate of the automatic clutch are controlled to be combined to the second preset clutch position according to the depth value of the accelerator pedal. The position of the clutch is used to characterize the position where the pressure plate of the automatic clutch and the driven plate are fully combined; If the gear in which the shift handle is engaged is not the starting gear, control the pressure plate and The driven plate is engaged to a second preset clutch position, which is used to characterize the fully engaged position of the pressure plate and the driven plate of the automatic clutch. 9. The method according to claim 8, wherein the controlling the pressure plate and the driven plate of the automatic clutch to be combined to the second preset clutch position according to the depth value of the accelerator pedal comprises: determining the starting required speed of the power source and the starting coupling speed of the automatic clutch according to the depth value of the accelerator pedal; judging whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position; When the current combined position is not equal to the second preset clutch position, obtain the current rotational speed of the power source, and judge whether the current rotational speed is less than a set required rotational speed, and the set required rotational speed is less than or equal to the Starting speed required; If the current rotation speed is not less than the set required rotation speed, control the pressure plate and the driven plate of the automatic clutch to combine according to the starting combination speed, and return to execute the judgment of the pressure plate and the driven plate of the automatic clutch Whether the current combined position of the moving disc is equal to the second preset clutch position, this step; If the current rotational speed is less than the set required rotational speed, control the pressure plate and the driven plate of the automatic clutch to separate to the first preset clutch position, and return to perform the acquisition of the current rotational speed of the power source, this step. 10. The method according to claim 8, wherein the pressure plate and the driven plate of the automatic clutch are controlled according to the output shaft speed of the manual transmission and the gear that the shift handle is engaged in. Combined to a second preset clutch position including: calculating the shift target speed of the power source according to the speed of the output shaft of the manual transmission and the gear in which the shift handle is engaged; Obtaining the current rotational speed of the power source, and judging whether the difference between the current rotational speed and the shift target rotational speed is within a preset allowable range; If the difference is within the preset allowable range, judging whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position; When the current engagement position is not equal to the second preset clutch position, determining the shift engagement speed of the automatic clutch according to the difference; Control the pressure plate of the automatic clutch and the driven plate to combine according to the shifting speed, and return to the execution of the judgment whether the current combined position of the pressure plate of the automatic clutch and the driven plate is equal to the second preset clutch position, this step; If the difference is not within the preset allowable range, control the speed of the power source, and return to the step of obtaining the current speed of the power source.