A Manual Transmission Clutch Assist Device and Its Voice Control Method

Abstract

The present invention discloses a manual transmission clutch auxiliary device and a voice control method thereof. A manual transmission clutch auxiliary device comprises a mounting frame arranged on a vehicle body, a power assembly fixedly connected to the mounting frame, and a driving mechanism transmission-connected to the power assembly; the driving mechanism acts on a pressure rod connected to a clutch pedal, and the pressure rod performs reciprocating motion to close or disconnect the clutch. The clutch auxiliary device of the present invention can be directly installed in a cab close to the pedal, without the need to install or open a reduction box, and can be applied to various vehicle models. The detection mechanism can detect the state of the clutch according to the movement state of the pressure rod, thereby prompting the driver or the clutch auxiliary device to automatically replace the driver to perform corresponding operations, thereby improving driving comfort, convenience, and operability. The screw or worm gear transmission method has accurate transmission and is easy to control, and is small in size and easy to install.

Description

Technical Field

[0001] The invention relates to the technical field of automobile auxiliary equipment, and more specifically to a manual transmission clutch auxiliary device and a voice control method thereof. Background Art

[0002] With the improvement of living standards, cars have become a common means of transportation for the general public, and driving comfort has gradually become a topic of public concern. The transmission system of a car is divided into manual transmission and automatic transmission, but most of the existing cars are manual transmission. Manual transmission generally has the advantages of fuel saving and low manufacturing cost, but for some novice or female drivers, manual transmission often becomes a technical difficulty. Due to unskilled operation and other reasons, during the driving process, you often encounter unsmooth conditions, such as stalling due to improper clutch release, and unstable driving due to untimely clutch release.

[0003] The existing clutch assist device is independent of the clutch pedal, and achieves the purpose of shifting by the interaction between the power mechanism installed on the outside of the automobile transmission and the lever mechanism inside the transmission. If it is a cable-controlled clutch, the clutch assist device is installed between the cable and the clutch, and the assist device can work simultaneously with manual operation to achieve the purpose of clutch shifting. However, the assist device is installed on the cable between the pedal and the clutch, which has a lag in control and inaccurate control, affecting the use effect. If it is a hydraulic clutch, the automatic operation of the clutch assist device cannot be carried out simultaneously with manual operation, which greatly limits the use of the clutch assist device.

[0004] In addition, most of the existing clutch auxiliary devices are installed in the engine compartment, and the clutch is actuated by a motor and a worm gear mechanism fixed to the frame. Due to the limited space in the engine compartment and the large size of the auxiliary device, it is often difficult to install and inconvenient to use. Moreover, the lever mechanism must be installed on the inside of the gearbox, and the gearbox needs to be opened during the installation process, which is extremely inconvenient to install and maintain. In addition, different models require different lever mechanisms, which affects mass production and interchangeability. Summary of the invention

[0005] The purpose of the invention is to overcome the defects of the prior art and provide a manual transmission clutch assist device and a voice control method thereof.

[0006] To achieve the above purpose, the invention adopts the following technical solutions:

[0007] A manual transmission clutch auxiliary device comprises a mounting frame arranged on a vehicle body, a power assembly fixedly connected to the mounting frame, and a driving mechanism transmission-connected to the power assembly; the driving mechanism acts on a pressure rod connected to a clutch pedal, and the pressure rod performs reciprocating motion to close or open the clutch.

[0008] Its further technical solution is: the driving mechanism is arranged on one side of the movement direction of the pressure rod; the driving mechanism includes a screw rod transmission connected to the output end of the power component, a nut transmission connected to the screw rod, and a slider fixedly connected to the nut; the power output end of the slider acts on the pressure rod, and the direction of movement of the slider is the same as the direction of movement of the pressure rod; the rotational movement of the screw rod drives the nut to reciprocate linear motion, so that the slider fixed on the nut drives the pressure rod to reciprocate motion.

[0009] Its further technical solution is: it also includes a sliding seat fixedly connected to the mounting frame; the screw is rotatably connected to the inner cavity of the sliding seat, and one end of the screw passes through the upper end cover of the sliding seat and extends to the outside of the sliding seat to form a power input end of the screw; the nut is arranged in the inner cavity of the sliding seat and reciprocates along the screw; one end of the slider is fixedly connected to the nut and the other end extends to the outside of the sliding seat through an opening of the sliding seat and stops at the pressure rod.

[0010] Its further technical solution is: the slider power stop is provided with a roller at the pressure rod end, and the roller is rotationally connected to the slider; the slider moves outward relative to the slide seat so that the roller rolls on the pressure rod surface.

[0011] A further technical solution is as follows: the driving mechanism comprises a worm gear drivingly connected to the output end of the power assembly, and a turbine gear drivingly connected to the worm gear; the turbine gear is fixedly or movably connected to the rotating shaft provided on the pressure rod;

[0012] When the pressure rod is movably connected to the rotating shaft, the rotating shaft is provided with an L-shaped lever for driving the pressure rod to move; the turbine drives the rotating shaft to rotate so that the L-shaped lever drives the pressure rod to move; the longitudinal portion of the L-shaped lever is fixed to the rotating shaft, and the transverse portion acts on the upper surface of the pressure rod;

[0013] When the pressure rod is fixedly connected to the rotating shaft, the turbine directly drives the pressure rod to swing through the transmission of the rotating shaft, so as to close or open the clutch.

[0014] Its further technical solution is: the rotating shaft is rotatably connected to a fixed seat, and one end extends to the outside of the fixed seat and is connected to the turbine; the power assembly is fixedly connected to one side of the fixed seat through a mounting frame; the worm is rotatably connected to a housing, and the housing is fixedly connected to the mounting frame.

[0015] Its further technical solution is: it also includes a detection mechanism arranged on one side of the pressure rod; the detection mechanism includes a sleeve fixedly connected or adjustably connected to the vehicle body, and a sliding pin slidably connected to the inner cavity of the sleeve; one end of the sliding pin abuts against the pressure rod, and the other end is transmission-connected to a detection component; the detection component is provided with a sensor for detecting the displacement of the sliding pin;

[0016] When the sensor is a sensor for collecting rotational signals; the detection assembly further includes a fixing plate fixedly connected to the sleeve, and a detection gear rotatably connected to the fixing plate; one end of the sliding pin is provided with a rack portion meshing with the detection gear; the detection gear is rotatably connected to the fixing plate through a provided detection rotating shaft, and the sensor is arranged at one end of the detection rotating shaft;

[0017] When the sensor is a sensor for collecting linear signals, the other end of the sliding pin is connected to a movable detection component provided on the sensor.

[0018] A further technical solution thereof is: a return spring is sleeved on the sliding pin near the side of the pressure bar; one end of the return spring abuts against an inner stepped hole provided on the inner side of the sleeve, and the other end abuts against the end protrusion of the sliding pin. The elastic force of the return spring makes the lower end of the sliding pin always in contact with the pressure bar.

[0019] A further technical solution thereof is: it further includes a controller electrically connected to the motor and the sensor. The controller is provided with a vehicle driving speed signal input terminal, an engine speed signal input terminal, a gear shifting signal input terminal, a brake signal input terminal, and an accelerator signal input terminal.

[0020] The control method of the manual transmission clutch auxiliary device includes the following control method A, control method B, control method C, or control method D:

[0021] Control method A is an automatic clutch control method, which includes the following steps:

[0022] The teaching step includes a low-speed start teaching sub-step and a medium-high speed gear shifting teaching sub-step, or the teaching step is a full gear shift teaching sub-step;

[0023] The low-speed start teaching sub-step: the controller outputs a teaching signal to the motor. After the motor rotates forward and the driving mechanism reaches the lower dead center, it rotates reversely, and the pressure bar resets upward. When it is detected that the engine speed signal decreases, the displacement of the driving mechanism acting on the pressure bar is the low critical value of the clutch semi-linkage. At this time, the signal of the sensor is the low critical point; continue to reset upward. When it is detected that the engine speed signal is the flameout speed, the displacement of the driving mechanism acting on the pressure bar is the high critical value of the clutch semi-linkage. At this time, the signal of the sensor is the high critical point;

[0024] The medium-high speed gear shifting teaching sub-step: manually operate the gear shift. When the vehicle speed is above 10-20 km / h, or the gear is above the third gear, when performing an upshift operation, obtain the upward reset speed of the pressure bar through the sensor. The upshift operation of different gears is taught at least three times, and the average value thereof is the automatic reset speed of the upshift operation of this gear;

[0025] Full gear shift teaching sub-steps, manually operate the transmission, and use the displacement and displacement speed during each gear shift, as well as the shifting vehicle speed during each gear shift, through sensors; perform each gear shift operation at least ten times, and based on the detection of the vehicle speed, select the average values of the shifting vehicle speed, displacement, and displacement speed of several times with the smoothest vehicle speed change as the reference shifting vehicle speed, reference displacement, and reference displacement speed for this gear shift;

[0026] Automatic clutch step, determine whether there are full gear shift teaching sub-steps. If there are, enter the full gear automatic control sub-step; if not, then determine whether it is a low-speed start based on the vehicle speed and / or gear signal. If it is, enter the low-speed start sub-step; if not, enter the medium-high speed automatic shifting sub-step;

[0027] Full gear shift teaching sub-step, according to the vehicle speed signal, select the corresponding gear shift, and calculate the control signal of the motor based on the corresponding reference displacement and reference displacement speed, and operate the pressure rod of the clutch through the motor;

[0028] Low-speed start sub-step, when the controller detects a shifting signal, the motor rotates forward to make the driving mechanism reach the bottom dead center, so that the clutch is completely disengaged, and the motor stops working. When the shifting signal disappears or a shifting-in-place signal is detected, the motor rotates backward at the first control speed. When the detection signal of the sensor reaches the low critical point, the motor stops working. When it is detected that the vehicle speed increases, the motor continues to rotate backward at the second control speed. When the vehicle speed is higher than the minimum vehicle speed matching this gear or the detection signal of the sensor reaches the high critical point, the motor rotates backward at the first control speed again, causing the driving mechanism to reach the top dead center; the second control speed is 30%-80% of the first control speed;

[0029] Medium-high speed automatic shifting sub-step, when the controller detects a shifting signal, the motor rotates forward to make the driving mechanism act on the pressure rod, making it lower than the low critical value. At this time, the signal of the sensor is lower than the low critical point, and the motor stops working. When the shifting signal disappears or a shifting-in-place signal is detected, the motor rotates backward at the first control speed. When the vehicle speed is higher than the minimum vehicle speed matching this gear or the detection signal of the sensor reaches the high critical point, the motor rotates backward at the third control speed again, causing the driving mechanism to reach the top dead center; the third control speed is 120%-200% of the first control speed;

[0030] Control method B is a control method for learning to manually control the clutch in the voice reminder mode. The manual transmission clutch auxiliary device used in this control method is provided with a pressure sensor on the contact surface between the pressure rod and the driving mechanism. It includes the following steps:

[0031] Teaching steps: When the vehicle is in a stationary state with the brakes on, the controller executes the teaching process, and obtains the low critical point and high critical point of the clutch during semi-linkage through a sensor that detects the displacement of the drive mechanism; obtains the low critical pressure value and high critical pressure value corresponding to the low critical point and high critical point of the clutch during semi-linkage through a pressure sensor; and obtains the downward pressure value of the pressure sensor when the drive mechanism moves downward.

[0032] Control steps with voice reminder:

[0033] When the operator makes a pre-action of shifting gears with their hand, the controller outputs a signal, the motor rotates forward, the drive mechanism moves downward, the foot acts on the clutch pedal, the pressure rod is subjected to two acting forces and moves downward simultaneously. The pressure sensor detects the real-time downward pressure. When the real-time downward pressure reaches more than 80% of the downward pressure value, a voice signal with the meaning of stepping on quickly is emitted.

[0034] After the operator makes a shifting action with their hand, the controller outputs a signal, the motor rotates in reverse, the drive mechanism moves upward, the foot acts on the clutch pedal, and the pressure rod is subjected to two reaction forces from the foot and the motor under the action of the resilience of the clutch and moves upward simultaneously. The pressure sensor detects the real-time upward pressure. At the low critical point, when the real-time upward pressure reaches more than 80% of the low critical pressure value, a voice signal with the meaning of releasing slowly is emitted; at the high critical point, when the real-time upward pressure is less than 50% of the high critical pressure value, a voice signal with the meaning of releasing quickly is emitted.

[0035] Control method C is a control method for following and learning to manually control the clutch in the voice reminder mode. The manual transmission clutch auxiliary device used in this control method is provided with a pressure sensor on the contact surface between the pressure rod and the drive mechanism, and, on the clutch pedal, there is a nested pedal structure or a clamping pedal structure for sleeving or clamping the driver's foot. It includes the following steps:

[0036] Teaching steps: When the vehicle is in a stationary state with the brakes on, the controller executes the teaching process, and obtains the low critical point and high critical point of the clutch during semi-linkage through a sensor that detects the displacement of the drive mechanism; obtains the low critical pressure value and high critical pressure value corresponding to the low critical point and high critical point of the clutch during semi-linkage through a pressure sensor; and obtains the downward pressure value of the pressure sensor when the drive mechanism moves downward.

[0037] Control steps with voice reminder:

[0038] The operator's hand movement has a pre-action of shifting gears. The controller outputs a signal, the motor rotates forward, the driving mechanism moves downward, the foot acts on the clutch pedal, the pressure rod is subjected to two acting forces and moves downward simultaneously. The pressure sensor detects the real-time downward pressure. When the real-time downward pressure reaches more than 80% of the downward pressure value, a voice signal with the meaning of "step on quickly" is emitted.

[0039] After the operator's hand movement has a gear-shifting action, the controller outputs a signal, the motor rotates reversely, the driving mechanism moves upward, the foot acts on the clutch pedal, and the pressure rod is subjected to two reaction forces from the foot and the motor under the action of the clutch resilience and moves upward simultaneously. The pressure sensor detects the real-time upward pressure. At the low critical point, when the real-time upward pressure reaches more than 80% of the low critical pressure value, a voice signal with the meaning of "release slowly" is emitted; at the high critical point, when the real-time upward pressure is less than 50% of the high critical pressure value, a voice signal with the meaning of "release quickly" is emitted.

[0040] Control method D is a control method for learning to manually control the clutch semi-linkage in the voice reminder mode. This control method obtains the semi-linkage position of the vehicle clutch through a manually shifted clutch auxiliary device, and it includes the following steps:

[0041] Teaching step: The controller outputs a teaching signal to the motor. After the motor rotates forward and the driving mechanism reaches the bottom dead center, it rotates reversely, and the pressure rod resets upward. When it is detected that the engine speed signal has decreased, the displacement of the driving mechanism acting on the pressure rod is the low critical value of the clutch semi-linkage, and the signal of the sensor at this time is the low critical point; continue to reset upward. When it is detected that the engine speed signal is the engine-off speed, the displacement of the driving mechanism acting on the pressure rod is the high critical value of the clutch semi-linkage, and the signal of the sensor at this time is the high critical point.

[0042] Voice prompt step: The controller stops outputting control signals to the motor, and through the sensor, it real-time collects the lifting position of the pressure rod, and real-time collects the vehicle driving speed signal, engine speed signal, and throttle signal input terminal. The driver controls the clutch with the foot. When lifting the clutch pedal, when the collected signal of the sensor reaches the low critical point, a voice signal with the meaning of "has reached the semi-linkage state, please slowly lift the clutch pedal and slowly increase the throttle" is output; after the semi-linkage state starts timing, when the set time is reached, or when the vehicle driving speed reaches the set value, or when the collected signal of the sensor reaches the high critical point, the controller outputs a voice prompt signal with the meaning of the end of the semi-linkage state.

[0043] The beneficial effects of the invention compared with the prior art are as follows: An auxiliary device for a manual transmission clutch is invented. The lever connected to the clutch pedal is driven by an electric power component to move, thereby driving the clutch to close or disconnect. The clutch auxiliary device can be directly installed in the cab near the pedal without installing and opening the reduction gearbox, and can be applicable to various vehicle models. The detection mechanism can detect the state of the clutch according to the movement state of the lever, thereby prompting the driver or the clutch auxiliary device to automatically replace the driver to perform corresponding operations, improving the comfort, convenience, and operability of driving. The screw or worm and worm transmission method has accurate transmission and is convenient for control, and has a small volume and is convenient for installation.

[0044] Control method of the auxiliary device for a manual transmission clutch The control method of the auxiliary device for a manual transmission clutch of the present invention detects the movement state of the lever 40 through a detection mechanism, a controller, and corresponding circuits to identify the working state of the clutch, and then prompts the driver to perform corresponding operations or automatically enters a cooperative operation mode, and has a teaching function, enabling unskilled drivers to master driving skills faster. Brief Description of the Drawings

[0045] Figure 1 It is a schematic diagram of the overall structure and a partial cross-sectional view of the first embodiment of an auxiliary device for a manual transmission clutch;

[0046] Figure 2 It is an installation schematic diagram of the first embodiment of an auxiliary device for a manual transmission clutch;

[0047] Figure 3 It is an installation schematic diagram of the second embodiment of an auxiliary device for a manual transmission clutch;

[0048] Figure 4 It is a schematic diagram of the overall structure of an auxiliary device for a manual transmission clutch;

[0049] Figure 5 It is Figure 3 Partial schematic diagram of the A - A cross-section of

[0050] Figure 6 It is Figure 3 Partial schematic diagram of the A - A cross-section with a pressure sensor of

[0051] Figure 7 It is a schematic diagram of the overall structure of the detection mechanism of an auxiliary device for a manual transmission clutch;

[0052] Figure 8 It is a schematic diagram of the structure of the detection component of an auxiliary device for a manual transmission clutch;

[0053] Figure 9 It is a block diagram of the control circuit of the auxiliary device for a manual transmission clutch. Detailed implementation manners

[0054] For a more thorough understanding of the technical content of the invention, the technical solution of the invention will be further introduced and described below in conjunction with specific embodiments, but it is not limited thereto.

[0055] As Figures 1 to 9 shown, it is a specific structural view of the clutch auxiliary device.

[0056] A manual transmission clutch auxiliary device includes a mounting bracket 10 provided on the vehicle body, a power assembly 20 fixedly connected to the mounting bracket 10, and a driving mechanism 30 drivingly connected to the power assembly 20. The driving mechanism 30 acts on a pressure rod 40 connected to the clutch pedal (the pressure rod 40 is fixedly connected to the pedal of the clutch), and the pressure rod 40 reciprocates to close or disconnect the clutch. Among them, the pressure rod 40 and the mounting bracket 10 are rotationally connected through a provided rotating shaft 11.

[0057] The clutch auxiliary device can be installed in the cab without being installed in the reduction box, which is convenient for installation.

[0058] Embodiment 1: As Figures 1 to 2 shown, the driving mechanism 30 is provided on one side of the moving direction of the pressure rod 40. The driving mechanism 30 includes a screw rod 31 drivingly connected to the output end of the power assembly 20, a nut 32 drivingly connected to the screw rod 31, and a slider 33 fixedly connected to the nut 32. The power output end of the slider 33 acts on the pressure rod 40, and the moving direction of the slider 33 is the same as the moving direction of the pressure rod 40. The rotational movement of the screw rod 31 drives the nut 32 to reciprocate linearly, so that the slider 33 fixed to the nut 32 drives the pressure rod 40 to reciprocate. The above driving mechanism 30 and the power assembly 20 are fixedly connected to the mounting bracket 10 through a support 301.

[0059] Among them, the above driving mechanism 30 further includes a sliding seat 34 fixedly connected to the support 301. The screw rod 31 is rotatably connected to an inner cavity 35 provided in the sliding seat 34, and one end of the screw rod 31 penetrates through an upper end cover 36 provided in the sliding seat 34 and extends to the outside of the sliding seat 34 to be drivingly connected to the power assembly 20 to form a power input end of the screw rod 31. The nut 32 is arranged in the inner cavity 35 of the sliding seat 34 and reciprocates along the screw rod 31. One end of the slider 33 is fixedly connected to the nut 32 and the other end extends to the outside of the sliding seat 34 through an opening 37 provided in the sliding seat 34 so as to abut against the pressure rod 40.

[0060] Among them, the screw rod 31, the nut 32 and the slider 33 can be installed into the inner cavity 35 from one end of the sliding seat 34 where the upper end cover 36 is installed.

[0061] Preferably, the screw rod 31 is drivingly connected to the sliding seat 34 through a bearing 38.

[0062] Specifically, the slider 33 is powered to stop at the end of the pressure rod 40 and is provided with a roller 39, and the roller 39 is rotatably connected to the slider 33. The slider 33 moves outward relative to the slide seat 34 so that the roller 39 rolls on the surface of the pressure rod 40 to reduce the friction between the slider 33 and the pressure rod 40.

[0063] In addition, a pressure sensor 70 is provided between the roller 39 and the pressure rod 40. The pressure sensor 70 is used to detect the pressure of the roller 39 on the pressure rod 40 in real time, and sends it to the control circuit as a feedback signal.

[0064] The specific working process is as follows: the power input end of the screw rod 31 is connected to the power assembly 20, and then the rotating screw rod 31 drives the nut 32 to move in the slide seat 34, and the slider 33 fixedly connected to the nut 32 slides in the inner cavity of the slide seat 34, and the power output end drives the pressure rod 40 to move. When the slider 33 moves outward from the slide seat 34, it pushes the pressure rod 40 to move downward; when the slider 33 moves inward into the slide seat 34, the pressure rod 40 retreats.

[0065] Embodiment 2: Figures 3 to 6 The driving mechanism 30 includes a worm 51 drivingly connected to the output end of the power assembly 20, and a turbine 52 drivingly connected to the worm 51. The turbine 52 is fixedly connected to the rotating shaft 53 provided on the pressure rod 40. The pressure rod 40 and the rotating shaft 53 are movably connected, that is, the rotating shaft 53 is provided with an L-shaped lever 54 for driving the pressure rod 40 to move. Specifically, when the rotating shaft 53 rotates, the L-shaped lever 54 is caused to rotate, and the lateral part of the rotating L-shaped lever 54 squeezes the pressure rod 40 to move. The turbine 52 drives the rotating shaft 53 to rotate, so that the L-shaped lever 54 drives the pressure rod 40 to move. The longitudinal part of the L-shaped lever 54 is fixed to the rotating shaft 53, and the lateral part acts on the upper surface of the pressure rod 40.

[0066] In addition, the pressure rod 40 and the rotating shaft 53 can also be fixedly connected, and the turbine 52 directly drives the pressure rod 40 to swing through the transmission of the rotating shaft 53 to close or open the clutch. This method does not require the L-shaped lever 54, reducing the power transmission path.

[0067] In addition, a pressure sensor 70 for real-time detection of the pressure between the pressure rod 40 and the L-shaped lever 54 is provided at the contact point of the lateral part of the pressure rod 40 and the L-shaped lever 54. The pressure on the pressure rod 40 is detected and sent to the control circuit 80 as a feedback signal.

[0068] The rotating shaft 53 is rotatably connected to the fixed seat 55, and one end extends to the outside of the fixed seat 55 to be connected to the turbine 52. The power assembly 20 is fixedly connected to one side of the fixed seat 55 through the provided mounting frame 10, and is close to the worm 51. The worm 51 is rotatably connected to the provided housing 56, and the housing 56 is fixedly connected to the mounting frame 10. The worm 51 and the turbine 52 are both arranged in the housing 56, which effectively protects the stability of the rotation of the worm 51 and the turbine 52.

[0069] Specific working process: The power output end of the power assembly 20 is in transmission connection with the worm 51, and the worm 51 drives the turbine 52 to rotate; the turbine 52 drives the rotating shaft 53 to move, and the L-shaped lever 54 fixed on the rotating shaft 53 drives the pressure lever 40 to move.

[0070] Among them, as Figures 7 to 8 shown, the whole device further includes a detection mechanism 60 arranged on one side of the pressure lever 40. The action of the pressure lever 40 can drive the detection mechanism 60 to move, thereby detecting the usage state of the pressure lever 40. The detection mechanism 60 includes a sleeve 61 fixedly or adjustably connected to the vehicle body, and a sliding pin 62 slidably connected to the inner cavity of the sleeve 61. One end of the sliding pin 62 abuts against the pressure lever 40, and the other end is in transmission connection with a detection assembly 63 provided. The detection assembly 63 is provided with a detection sensor 64 for detecting the displacement of the sliding pin 62. Among them, the outer periphery of the sleeve 61 of the detection mechanism 60 is provided with threads and is fixed on the mounting plate 67 provided on the vehicle body through a locking nut 66.

[0071] The detection assembly 63 includes a fixing plate 631 fixedly connected to the sleeve 61, and a detection gear 632 rotatably connected to the fixing plate 631. One end of the sliding pin 62 is provided with a rack portion 621 meshing with the detection gear 632. The detection gear 632 is rotatably connected to the fixing plate 631 through a detection rotating shaft 633 provided, and the detection sensor 64 is arranged at one end of the detection rotating shaft 633.

[0072] Among them, the detection sensor 64 is a sensor for collecting rotation signals, such as a damper sensor, a rotary potentiometer or an encoder.

[0073] In other embodiments, it can also be a sensor for collecting linear signals, such as a grating scale or a sliding resistor, etc. When the sensor is a sensor for collecting linear signals, the other end of the sliding pin 62 is connected to a movable detection component provided on the sensor.

[0074] A return spring 65 is arranged on the side of the sliding pin 62 close to the pressure lever 40. One end of the return spring 65 abuts against an inner step hole 611 provided on the inner side of the sleeve 61, and the other end abuts against an end protrusion 622 of the sliding pin 62. The elastic force of the return spring 65 enables the lower end of the sliding pin 62 to always be in contact with the pressure lever 40. A buffer pad 66 is arranged at the contact position between the sliding pin 62 and the pressure lever 40 to avoid the impact of the pressure lever 40 on the detection mechanism 60.

[0075] Specific working process of the detection mechanism 60: One end of the sliding pin 62 is always in contact with the pressure rod 40 under the action of the return spring 65, and the other end is connected to the detection mechanism 60. The detection sensor 64 of the detection structure 60 is used to detect the downward displacement of the pressure rod 40 of the clutch auxiliary device caused by manual or electric power, so as to identify the state of the clutch; the detection sensor 64 converts this state into a feedback electrical signal and transmits it to the provided control unit, and the control unit sends an instruction to the motor 21 to adjust the speed to control the position that the clutch needs to reach, avoid the engine stalling, and achieve smooth driving.

[0076] Among them, the power assembly 20 includes a motor 21, and a speed reducer 22 connected to the output end of the motor 21. A driving gear 23 is provided at the output end of the speed reducer 22. The driving gear 23 is in transmission connection with the driven gear 24 provided in the driving mechanism 30.

[0077] Among them, as Figure 9 shown, the manual transmission clutch auxiliary device further includes a control circuit 80. The control circuit includes a controller 81 electrically connected to the motor 21 and the sensor. The controller 81 is provided with a vehicle speed signal input terminal 82 for vehicle driving, an engine speed signal input terminal 83, a shift signal input terminal 84, a brake signal input terminal 85, and an accelerator signal input terminal 86. It also includes a driving circuit 87 for driving the motor 21 to rotate, a speaker 88 for playing voice, and a power supply module 89 for providing power.

[0078] A control method for a manual transmission clutch auxiliary device includes the following control methods A, B, C, or D.

[0079] Control method A is an automatic clutch control method, which includes the following steps:

[0080] The teaching step includes a low-speed start teaching sub-step and a medium-high speed shift teaching sub-step, or the teaching step is a full gear shift teaching sub-step.

[0081] In the low-speed start teaching sub-step, the controller 81 outputs a teaching signal to the motor 21. After the motor 21 rotates forward and the driving mechanism 30 reaches the bottom dead center, it rotates in the reverse direction, and the pressure rod 40 resets upward. When it is detected that the engine speed signal decreases, the displacement of the driving mechanism 30 acting on the pressure rod 40 is the low critical value of the clutch semi-linkage. At this time, the signal of the sensor is the low critical point; continue to reset upward. When it is detected that the engine speed signal is the stalling speed, the displacement of the driving mechanism 30 acting on the pressure rod 40 is the high critical value of the clutch semi-linkage. At this time, the signal of the sensor is the high critical point.

[0082] Sub-steps for teaching medium and high-speed gear shifting: Manually operate the transmission. When the vehicle speed is above 10 - 20 km / h or the gear is above third gear, when performing an upshift operation, obtain the upward reset speed of the pressure lever 40 through the sensor. Teach the upshift operation for at least three times in different gears, and use its average value as the automatic reset speed for the upshift operation of this gear; Transmit the average value data of the automatic reset speed to the controller 81 as the judgment criterion for automatic operation.

[0083] Sub-steps for teaching full-gear shifting: Manually operate the transmission. Adopt the displacement and displacement speed during each gear shift and the shifting vehicle speed through the sensor; Perform each gear shift operation at least ten times. According to the detection of the vehicle speed, select the average values of the shifting vehicle speed, displacement, and displacement speed of several times with the smoothest vehicle speed change as the reference shifting vehicle speed, reference displacement, and reference displacement speed for this gear shift, and store them in the controller 81.

[0084] Automatic clutch step: Judge whether there are sub-steps for teaching full-gear shifting. If there are, enter the sub-steps for full-gear automatic control; If not, judge whether it is a low-speed start according to the vehicle speed and / or gear signal. If it is, enter the low-speed start sub-steps. If not, enter the medium and high-speed automatic shifting sub-steps.

[0085] Sub-steps for teaching full-gear shifting: According to the vehicle speed signal, select the corresponding gear shift, and calculate the control signal of the motor 21 based on the corresponding reference displacement and reference displacement speed, and operate the pressure lever 40 of the clutch through the motor 21.

[0086] Low-speed start sub-steps: When the controller 81 detects a shifting signal, the motor 21 rotates forward to make the driving mechanism 30 reach the bottom dead center to completely separate the clutch, and the motor 21 stops working. When the shifting signal disappears or a shifting-in-place signal is detected, the motor 21 rotates backward at the first control speed. When the detection signal of the sensor reaches the low critical point, the motor 21 stops working. When it is detected that the vehicle speed increases, the motor 21 continues to rotate backward at the second control speed. When the vehicle speed is higher than the minimum vehicle speed matching this gear or the detection signal of the sensor reaches the high critical point, the motor 21 rotates backward at the first control speed again to make the driving mechanism 30 reach the top dead center; The second control speed is 30% - 80% of the first control speed.

[0087] Medium and high speed automatic shifting sub - steps: When the controller 81 detects a shifting signal, the motor 21 rotates forward to make the driving mechanism 30 act on the pressure lever 40, making it lower than the low critical value. At this time, the signal of the sensor is lower than the low critical point, and the motor 21 stops working. When the shifting signal disappears or a gear - in signal is detected, the motor 21 rotates in reverse at the first control speed. When the vehicle speed is higher than the minimum vehicle speed matching this gear or the detection signal of the sensor reaches the high critical point, the motor 21 rotates in reverse at the third control speed, causing the driving mechanism 30 to reach the top dead center; the third control speed is 120% - 200% of the first control speed.

[0088] Control method B is a control method for learning to manually control the clutch in the voice reminder mode. The manual transmission clutch auxiliary device used in this control method is provided with a pressure sensor 70 on the contact surface between the pressure lever 40 and the driving mechanism 30. It includes the following steps.

[0089] Teaching step: When the vehicle is in a stationary state with the brake on, the controller 81 executes the teaching process, obtains the low critical point and high critical point of the clutch in the semi - engaged state through the sensor detecting the displacement of the driving mechanism 30; obtains the low critical pressure value and high critical pressure value corresponding to the low critical point and high critical point of the clutch in the semi - engaged state through the pressure sensor 70; and obtains the downward pressure value of the pressure sensor 70 when the driving mechanism 30 moves downward.

[0090] Control steps with voice reminder:

[0091] When the operator's hand has a pre - action of shifting, the controller 81 outputs a signal, the motor 21 rotates forward, the driving mechanism 30 moves downward, the foot acts on the clutch pedal, the pressure lever 40 is subject to two acting forces and moves downward at the same time. The pressure sensor 70 detects the real - time downward pressure. When the real - time downward pressure reaches more than 80% of the downward pressure value, a voice signal with the meaning of "step on quickly" is emitted.

[0092] After the operator's hand has a shifting action, the controller 81 outputs a signal, the motor 21 rotates in reverse, the driving mechanism 30 moves upward, the foot acts on the clutch pedal, the pressure lever 40 is subject to two reaction forces from the foot and the motor 21 under the action of the clutch return force and moves upward at the same time. The pressure sensor 70 detects the real - time upward pressure. At the low critical point, when the real - time upward pressure reaches more than 80% of the low critical pressure value, a voice signal with the meaning of "release slowly" is emitted; at the high critical point, when the real - time upward pressure is lower than 50% of the high critical pressure value, a voice signal with the meaning of "release quickly" is emitted.

[0093] Control method C is a control method for manually controlling the clutch in a follow-up learning mode in a voice reminder mode. The manually shifted clutch auxiliary device used in this control method is provided with a pressure sensor 70 on the contact surface between the pressure lever 40 and the drive mechanism 30. Moreover, a fitting pedal structure or a clamping pedal structure for sheathing or clamping the driver's foot is provided on the clutch pedal. It includes the following steps.

[0094] Teaching step: When the vehicle is in a stationary state with the brake engaged, the controller 81 executes the teaching process, obtains the low critical point and the high critical point of the clutch during semi-linkage through the sensor for detecting the displacement of the drive mechanism 30; obtains the low critical pressure value and the high critical pressure value corresponding to the low critical point and the high critical point of the clutch during semi-linkage through the pressure sensor 70; and obtains the downward pressure value of the pressure sensor 70 when the drive mechanism 30 moves downward.

[0095] Control step with voice reminder:

[0096] When there is a preliminary action of shifting gears in the operator's hand operation, the controller 81 outputs a signal, the motor 21 rotates forward, the drive mechanism 30 moves downward, the foot acts on the clutch pedal, the pressure lever 40 is subjected to two acting forces and moves downward simultaneously. The pressure sensor 70 detects the real-time downward pressure. When the real-time downward pressure reaches more than 80% of the downward pressure value, a voice signal with the meaning of stepping on quickly is emitted.

[0097] After the operator's hand operation has a gear shifting action, the controller 81 outputs a signal, the motor 21 rotates in the reverse direction, the drive mechanism 30 moves upward, the foot acts on the clutch pedal, and the pressure lever 40 is subjected to two reaction forces from the foot and the motor 21 under the action of the clutch resilience force and moves upward simultaneously. The pressure sensor 70 detects the real-time upward pressure. At the low critical point, when the real-time upward pressure reaches more than 80% of the low critical pressure value, a voice signal with the meaning of releasing slowly is emitted; at the high critical point, when the real-time upward pressure is less than 50% of the high critical pressure value, a voice signal with the meaning of releasing quickly is emitted.

[0098] Control method D is a control method for learning to manually control the semi-linkage of the clutch in a voice reminder mode. This control method obtains the semi-linkage position of the clutch of this vehicle through the provided manually shifted clutch auxiliary device. It includes the following steps:

[0099] Teaching step: The controller 81 outputs a teaching signal to the motor 21. After the motor 21 rotates forward and causes the drive mechanism 30 to reach the bottom dead center, it rotates in the reverse direction, and the pressure lever 40 resets upward. When it is detected that the engine speed signal drops, the displacement of the drive mechanism 30 acting on the pressure lever 40 is the low critical value of the clutch semi-linkage state, and the signal of the sensor at this time is the low critical point; continue to reset upward. When it is detected that the engine speed signal is the engine stalling speed, the displacement of the drive mechanism 30 acting on the pressure lever 40 is the high critical value of the clutch semi-linkage state, and the signal of the sensor at this time is the high critical point.

[0100] Voice prompt step: The controller 81 stops outputting the control signal to the motor 21, and through the sensor, it collects the lifting position of the pressure lever 40 in real time, and also collects the vehicle driving speed signal, the engine speed signal and the throttle signal input terminal 86 in real time. When the driver controls the clutch with the foot and raises the clutch pedal, when the collected signal of the sensor reaches the low critical point, a voice signal with the meaning of "has reached the semi-linkage state, please slowly raise the clutch pedal and slowly increase the throttle" is output; after the semi-linkage state starts timing, when the set time is reached, or when the vehicle driving speed reaches the set value, or when the collected signal of the sensor reaches the high critical point, the controller 81 outputs a voice prompt signal with the meaning of the end of the semi-linkage state.

[0101] In the actual use process of the above control methods for each manual transmission clutch auxiliary device, a brake signal will also be collected. Therefore, when a signal of a gear shifting action is collected, a brake signal will be collected at the same time. Therefore, in the above control method, it can be carried out in a state of completely no brake, that is, before the vehicle starts, the brake should be completely released (including the handbrake and the foot brake). This method can release the clutch to a position close to the low critical point of the semi-linkage state before the brake is completely released (including the handbrake and the foot brake). It can also be carried out with the brake engaged. An analog signal received by the brake signal input terminal can first make the clutch reach the semi-linkage state of the low critical point according to the proportional relationship between the brake signal value and the braking force obtained by prior self-learning. If the brake is not completely released after the set time (such as 1 - 3 seconds), a voice prompt will be output, or the clutch will be disengaged again (that is, the clutch is in the disengaged state).

[0102] In the actual use process of the above control methods for each manual transmission clutch auxiliary device, a throttle signal will also be collected. Corresponding operations on the clutch are carried out according to the change of the throttle signal. For example, when shifting gears, when the throttle signal remains unchanged, a voice prompt with the meaning of "need to release the throttle when shifting gears" will be issued.

[0103] In summary, a manual transmission clutch auxiliary device is invented. The lever connected to the clutch pedal is driven by an electric power component to drive the clutch to close or disconnect. The clutch auxiliary device can be directly installed in the cab near the pedal without opening the gearbox for installation, and is applicable to various vehicle models. The detection mechanism can detect the state of the clutch according to the movement state of the lever, so as to prompt the driver or the clutch auxiliary device to automatically replace the driver to perform corresponding operations, improving the comfort, convenience and operability of driving. The screw or worm and gear transmission method has accurate transmission and is easy to control, and is small in size and convenient for installation.

[0104] The control method of the manual transmission clutch auxiliary device of the present invention detects the movement state of the lever through a detection mechanism, a controller and corresponding circuits to identify the working state of the clutch, and then prompts the driver to perform corresponding operations or automatically enters a cooperative operation mode, and has a voice teaching function, enabling unskilled drivers to master driving skills faster.

[0105] The above only further illustrates the technical content of the invention with embodiments to make it easier for readers to understand, but does not mean that the implementation mode of the invention is limited to this. Any technical extension or re-creation based on the invention is protected by the invention. The protection scope of the invention is subject to the claims.

Claims

1. Control method for a manual transmission clutch assist device, the manual transmission clutch assist device comprising a mounting bracket provided on a vehicle body, a power assembly fixedly connected to the mounting bracket, and a driving mechanism drivingly connected to the power assembly; the driving mechanism acts on a pressure rod connected to a clutch pedal, and the pressure rod reciprocates to close or disengage the clutch; it further comprises a controller electrically connected to a motor and sensors, and the controller is provided with a vehicle driving speed signal input terminal, an engine speed signal input terminal, a shift signal input terminal, a brake signal input terminal, and an accelerator signal input terminal; The control method for the manual transmission clutch assist device comprises the following control method A, control method B, control method C, or control method D: Control method A is an automatic clutch control method, and it comprises the following steps: A teaching step, which comprises a low-speed start teaching sub-step and a medium-high speed shift teaching sub-step, or the teaching step is a full gear shift teaching sub-step; The low-speed start teaching sub-step, the controller outputs a teaching signal to the motor, the motor rotates forward until the driving mechanism reaches the bottom dead center and then rotates backward, the pressure rod resets upward, when it is detected that the engine speed signal decreases, the displacement of the driving mechanism acting on the pressure rod is the low critical value of the clutch semi-linkage, and the signal of the sensor at this time is the low critical point; continue to reset upward, when it is detected that the engine speed signal is the flameout speed, the displacement of the driving mechanism acting on the pressure rod is the high critical value of the clutch semi-linkage, and the signal of the sensor at this time is the high critical point; The medium-high speed shift teaching sub-step, manually operate the transmission, when the vehicle speed is above 10 - 20 km / h, or the gear is above the third gear, when performing an upshift operation, obtain the upward reset speed of the pressure rod through the sensor, and perform the upshift operation teaching for at least three times in different gears, and take its average value as the automatic reset speed of the upshift operation for this gear; The full gear shift teaching sub-step, manually operate the transmission, adopt the displacement and displacement speed during each gear shift, and the shift vehicle speed during each gear shift through the sensor; perform each gear shift operation at least ten times, and according to the detection of the vehicle speed, select the average value of the shift vehicle speed, displacement, and displacement speed of several times with the smoothest vehicle speed change as the reference shift vehicle speed, reference displacement, and reference displacement speed for this gear shift; The automatic clutch step, determine whether there is a full gear shift teaching sub-step, if so, enter the full gear automatic control sub-step; if not, determine whether it is a low-speed start according to the vehicle speed and / or gear signal, if so, enter the low-speed start sub-step, if not, enter the medium-high speed automatic shift sub-step; The full gear shift teaching sub-step, according to the vehicle speed signal, select the corresponding gear shift, and calculate the control signal of the motor based on the corresponding reference displacement and reference displacement speed, and operate the pressure rod of the clutch through the motor; Low-speed starting sub-step: When the controller detects a gear-shifting signal, the motor rotates forward to make the driving mechanism reach the bottom dead center, so as to completely disengage the clutch. Then the motor stops working. When the gear-shifting signal disappears or a gear-shifting in-place signal is detected, the motor rotates backward at the first control speed. When the detection signal of the sensor reaches the low critical point, the motor stops working. When the vehicle speed is detected to increase, the motor continues to rotate backward at the second control speed. When the vehicle speed is higher than the minimum vehicle speed matching this gear or the detection signal of the sensor reaches the high critical point, the motor rotates backward at the first control speed again to make the driving mechanism reach the top dead center; the second control speed is 30%-80% of the first control speed; Medium-high speed automatic gear-shifting sub-step: When the controller detects a gear-shifting signal, the motor rotates forward to make the driving mechanism act on the pressure lever, making it lower than the low critical value. At this time, the signal of the sensor is lower than the low critical point, and the motor stops working. When the gear-shifting signal disappears or a gear-arrival signal is detected, the motor rotates backward at the first control speed. When the vehicle speed is higher than the minimum vehicle speed matching this gear or the detection signal of the sensor reaches the high critical point, the motor rotates backward at the third control speed again to make the driving mechanism reach the top dead center; the third control speed is 120%-200% of the first control speed; Control method B is a control method for learning to manually control the clutch in the voice reminder mode. The manual transmission clutch auxiliary device used in this control method is provided with a pressure sensor on the contact surface between the pressure lever and the driving mechanism. It includes the following steps: Teaching step: When the vehicle is in a stationary state with the brake on, the controller executes the teaching process, and obtains the low critical point and high critical point of the clutch in the semi-engaged state through the sensor for detecting the displacement of the driving mechanism; obtains the low critical pressure value and high critical pressure value corresponding to the low critical point and high critical point of the clutch in the semi-engaged state through the pressure sensor; and obtains the downward pressure value of the pressure sensor when the driving mechanism moves downward; Control step with voice reminder: When the operator makes a preliminary action of gear-shifting with the hand, the controller outputs a signal, the motor rotates forward, the driving mechanism moves downward, the foot acts on the clutch pedal, the pressure lever is subject to two acting forces and moves downward at the same time. The pressure sensor detects the real-time downward pressure. When the real-time downward pressure reaches more than 80% of the downward pressure value, a voice signal with the meaning of stepping on quickly is sent out; After the operator makes a gear-shifting action with the hand, the controller outputs a signal, the motor rotates backward, the driving mechanism moves upward, the foot acts on the clutch pedal, and the pressure lever is subject to two reaction forces from the foot and the motor under the action of the resilience of the clutch and moves upward at the same time. The pressure sensor detects the real-time upward pressure. At the low critical point, when the real-time upward pressure reaches more than 80% of the low critical pressure value, a voice signal with the meaning of slowly releasing is sent out; at the high critical point, when the real-time upward pressure is lower than 50% of the high critical pressure value, a voice signal with the meaning of releasing quickly is sent out; Control method C is a control method for manually controlling the clutch in a follow-up learning mode under a voice reminder mode. The manual transmission clutch auxiliary device adopted by this control method is provided with a pressure sensor on the contact surface between the pressure lever and the drive mechanism. Moreover, a fitting pedal structure or a clamping pedal structure for sleeving or clamping the driver's foot is provided on the clutch pedal. It includes the following steps: Teaching step: When the vehicle is in a stationary state with the brake on, the controller executes the teaching process, obtains the low critical point and the high critical point of the clutch during semi-linkage through the sensor for detecting the displacement of the drive mechanism; obtains the low critical pressure value and the high critical pressure value corresponding to the low critical point and the high critical point of the clutch during semi-linkage through the pressure sensor; and obtains the downward pressure value of the pressure sensor when the drive mechanism moves downward. Control step with voice reminder: When the operator's hand has a pre-action of shifting gears, the controller outputs a signal, the motor rotates forward, the drive mechanism moves downward, the foot acts on the clutch pedal, the pressure lever is subjected to two acting forces and moves downward simultaneously. The pressure sensor detects the real-time downward pressure. When the real-time downward pressure reaches more than 80% of the downward pressure value, a voice signal with the meaning of stepping on quickly is sent out. After the operator's hand has a shifting action, the controller outputs a signal, the motor rotates reversely, the drive mechanism moves upward, the foot acts on the clutch pedal, the pressure lever is subjected to two reaction forces from the foot and the motor under the action of the clutch resilience force and moves upward simultaneously. The pressure sensor detects the real-time upward pressure. At the low critical point, when the real-time upward pressure reaches more than 80% of the low critical pressure value, a voice signal with the meaning of releasing slowly is sent out; at the high critical point, when the real-time upward pressure is less than 50% of the high critical pressure value, a voice signal with the meaning of releasing quickly is sent out. Control method D is a control method for learning to manually control the clutch semi-linkage in a voice reminder mode. This control method obtains the semi-linkage position of the vehicle clutch through the provided manual transmission clutch auxiliary device. It includes the following steps: Teaching step: The controller outputs a teaching signal to the motor. After the motor rotates forward and the drive mechanism reaches the lower dead point, it rotates reversely, and the pressure lever resets upward. When it is detected that the engine speed signal decreases, the displacement of the drive mechanism acting on the pressure lever is the low critical value of the clutch semi-linkage. At this time, the signal of the sensor is the low critical point; continue to reset upward. When it is detected that the engine speed signal is the flameout speed, the displacement of the drive mechanism acting on the pressure lever is the high critical value of the clutch semi-linkage. At this time, the signal of the sensor is the high critical point. In the voice prompting step, the controller stops outputting control signals to the motor, and collects the lifting and lowering positions of the pressure rod in real time through the sensor, and collects the vehicle speed signal, engine speed signal and throttle signal input terminal in real time. The driver controls the clutch by foot, and when the clutch pedal is lifted, when the collected signal of the sensor reaches the low critical point, a voice signal containing the meaning of "Has reached the semi-clutch state, please slowly lift the clutch pedal and slowly increase the throttle" is output; after the semi-clutch state starts timing, when the set time is reached, or the vehicle speed reaches the set value, or when the collected signal of the sensor reaches the high critical point, the controller outputs a voice prompt signal with the meaning of the end of the semi-clutch state.

2. The control method according to claim 1, wherein The driving mechanism is arranged on one side of the movement direction of the pressure rod; the driving mechanism includes a screw rod transmission-connected to the output end of the power component, a nut transmission-connected to the screw rod, and a slider fixedly connected to the nut; the power output end of the slider acts on the pressure rod, and the direction of movement of the slider is the same as the direction of movement of the pressure rod; the rotational movement of the screw rod drives the nut to reciprocate linearly, so that the slider fixed on the nut drives the pressure rod to reciprocate.

3. The control method according to claim 2, wherein It also includes a slide fixedly connected to the mounting frame; the screw is rotatably connected to an inner cavity of the slide, and one end of the screw passes through an upper end cover of the slide and extends to the outside of the slide to form a power input end of the screw; the nut is arranged in the inner cavity of the slide and reciprocates along the screw; one end of the slider is fixedly connected to the nut and the other end extends to the outside of the slide through an opening of the slide and stops at the pressure rod.

4. The control method according to claim 2 or 3, characterized in that The slider is powered to stop at a roller at the end of the pressure rod, and the roller is rotationally connected to the slider; the slider moves outward relative to the slide seat so that the roller rolls on the surface of the pressure rod.

5. The control method according to claim 1, wherein The driving mechanism includes a worm gear transmission-connected to the output end of the power assembly, and a turbine gear transmission-connected to the worm gear; the turbine gear is fixedly or movably connected to the rotating shaft provided with the pressure rod; when the pressure rod and the rotating shaft are movably connected, the rotating shaft is provided with an L-shaped lever for driving the pressure rod to move; the turbine gear drives the rotating shaft to rotate so that the L-shaped lever drives the pressure rod to move; the longitudinal portion of the L-shaped lever is fixed to the rotating shaft, and the transverse portion acts on the upper surface of the pressure rod; when the pressure rod and the rotating shaft are fixedly connected, the turbine gear directly drives the pressure rod to swing through the transmission of the rotating shaft so that the clutch is closed or disconnected.

6. The control method according to claim 5, wherein The rotating shaft is rotatably connected to a fixed seat, and one end extends to the outside of the fixed seat and is connected to the turbine; the power assembly is fixedly connected to one side of the fixed seat through a mounting frame; the worm is rotatably connected to a housing, and the housing is fixedly connected to the mounting frame.

7. The control method according to claim 1, characterized in that It further includes a detection mechanism provided on one side of the pressure rod; the detection mechanism includes a sleeve fixedly connected or adjustably connected to the vehicle body, and a sliding pin slidably connected to the inner cavity of the sleeve; one end of the sliding pin abuts against the pressure rod, and the other end is drivingly connected to a provided detection component; the detection component is provided with a sensor for detecting the displacement of the sliding pin; when the sensor is a sensor for collecting rotational signals; the detection component further includes a fixing plate fixedly connected to the sleeve, and a detection gear rotatably connected to the fixing plate; one end of the sliding pin is provided with a rack portion meshing with the detection gear; the detection gear is rotatably connected to the fixing plate through a provided detection rotating shaft, and the sensor is provided at one end of the detection rotating shaft; when the sensor is a sensor for collecting linear signals, the other end of the sliding pin is connected to a movable detection component provided on the sensor.

8. The control method according to claim 7, characterized in that, A return spring is sleeved on the side of the sliding pin close to the pressure rod; one end of the return spring abuts against an inner step hole provided on the inner side of the sleeve, and the other end abuts against the end protrusion of the sliding pin. The elastic force of the return spring keeps the lower end of the sliding pin in contact with the pressure rod all the time.

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