Adaptive clutch actuator and control method thereof

Abstract

The present invention discloses an adaptive clutch actuator and a control method thereof, belonging to the field of automobile transmission technology. It comprises a clutch body; a diaphragm spring, used to control the separation and contact of the friction plate inside the clutch body, the diaphragm spring is formed by a plurality of elastic plates arranged in an array with equal spacing around the circumference, and an abutment block is arranged at the end of the diaphragm spring near the center of the array; a push piece, the push piece is sleeved on the separation shaft, a guide groove is arranged at one end of the push piece near the diaphragm spring, the abutment block is slidably engaged in the guide groove, and a sliding piece is slidably arranged at the bottom of the guide groove to abut against the roller; wherein, when the diaphragm spring is pushed by the push piece, the abutment block slides in the guide groove. Through the present invention, the sliding friction between the elastic plate and the push piece due to repeated sliding is avoided, so that the diaphragm spring is more durable and the overall service life of the clutch is improved.

Description

Technical Field

[0001] The invention relates to an adaptive clutch actuator and a control method thereof, belonging to the technical field of automobile transmission. Background Art

[0002] The clutch actuator is a key part of the clutch system. It is responsible for executing the separation and engagement of the clutch. It transfers the pedal force on the clutch pedal to the clutch spring plate, thereby separating the friction plate in the clutch from the driving surface, thereby achieving the effect of controlling the separation and engagement of the clutch.

[0003] Common clutch actuators usually require a clutch bearing to be installed at the clutch spring plate position to press the clutch spring plate. However, pressing the clutch spring plate in this way will generate greater friction between the clutch bearing and the clutch spring plate, which will greatly reduce the service life of the clutch. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an adaptive clutch actuator and a control method thereof, which solves the problem in the prior art that friction loss occurs between a clutch spring and a clutch bearing when the clutch is working.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solution: an adaptive clutch actuator and a control method thereof, comprising:

[0006] Clutch body;

[0007] The diaphragm spring is used to control the separation and contact of the friction plate inside the clutch body. The diaphragm spring is formed by a plurality of elastic plates arranged in an array with equal distances around the circumference. An abutment block is arranged at the end of the diaphragm spring near the center of the array, and a roller is rotatably arranged on the abutment block.

[0008] A release shaft, one end of which is fixed to the clutch body and the other end of which is connected to the gearbox;

[0009] A pushing piece, the pushing piece is sleeved on the separation shaft, a guide groove is provided at one end of the pushing piece close to the diaphragm spring, the abutment block is slidably engaged in the guide groove, and a sliding piece is slidably provided at the bottom of the guide groove and abuts against the roller;

[0010] A pushing shell is coaxially sleeved on the separation shaft;

[0011] A driving assembly, comprising a push plate, wherein the push plate is hingedly connected to the pushing member;

[0012] Wherein, when the diaphragm spring is pushed by the pushing member, the abutment block slides in the guide groove.

[0013] By adopting the above technical solution, an abutment block is provided on the elastic sheet, and the abutment block is slidably engaged with the guide groove on the pushing member. When the pushing member presses the diaphragm spring, contact between the elastic sheet and the pushing member can be avoided, thereby avoiding repeated sliding friction between the elastic sheet and the pushing member, making the diaphragm spring more durable and improving the overall service life of the clutch.

[0014] The present invention is further configured as follows: an annular piston is arranged at one end of the pushing member away from the diaphragm spring, a piston cavity is arranged in the pushing shell, and the annular piston is slidably engaged in the piston cavity.

[0015] By adopting the above technical solution, the annular piston slides in the piston cavity. When the pushing member pushes the diaphragm spring, the volume in the piston cavity increases to form a negative pressure. After the driver releases the clutch pedal, the negative pressure can enable the pushing member to quickly reset under the pullback of the annular piston, thereby quickly resetting the diaphragm spring.

[0016] The present invention is further configured such that: the length of the abutment block is greater than the depth of the guide groove, and the length of the guide groove is greater than the length of the abutment block in the sliding direction.

[0017] By adopting the above technical solution, the depth of the guide groove is greater than the length of the abutment block, which further avoids the elastic sheet on the diaphragm spring from directly abutting against the end face of the pushing member, so that when the pushing member pushes the diaphragm spring, no sliding friction will be generated between the elastic sheet and the pushing member, thereby avoiding friction loss of the diaphragm spring.

[0018] The present invention is further configured as follows: a buffer plate is arranged on the push shell at the inlet end of the piston chamber in the circumferential direction, and buffer cotton is attached between the buffer plate and the inner ring wall of the push shell. When the push shell is installed, the buffer plate is installed in the direction close to the push plate.

[0019] By adopting the above technical solution, the buffer plate and the buffer cotton are arranged, so that when the push plate presses or pulls the push member, the friction loss between the inlet end face of the push shell and the push member can be reduced, and the smoothness between the two can be improved.

[0020] The present invention is further configured as follows: the driving assembly also includes a driver, one end of the driver is hinged to one end of the push plate, a hinge hole is provided in the middle of the push plate, a rotating rod is penetrated in the hinge hole, a long groove is provided at one end of the rotating rod, and the long groove is used to compensate for the distance between the rotating point of the push plate and the hinge point of the pushing member when the push plate rotates, and the rotating rod will adaptively slide along the long groove during the rotation of the push plate.

[0021] By adopting the above technical solution, through the cooperation between the long groove and the push plate, when the pushing member is pushed by the push plate, the distance change caused by the rotation of the push plate can be compensated by the long groove, and the rotating rod can slide synchronously in the long groove with the rotation of the push plate, so that the distance between the rotating rod and the pushing member is always consistent, so that the thrust direction of the push plate on the pushing member is constant, which can reduce the friction loss between the pushing member and the pushing shell during the sliding process.

[0022] The present invention is further configured as follows: the push plate includes a hinge section and a push section, and the hinge hole in the middle of the push plate is the connection point between the hinge section and the push section.

[0023] By adopting the above technical solution, the push plate can quickly transmit the thrust of the driver to the pusher through the torque, thereby quickly achieving the pressing of the diaphragm spring.

[0024] The present invention is further configured such that: the articulated section and the pushing section are connected by a bending connection, and when the push plate is installed, an angle less than one hundred and eighty degrees formed by the bending connection between the articulated section and the pushing section faces the direction of the clutch body.

[0025] By adopting the above technical solution, a larger torque can be transmitted to the pusher during torque transmission. Since the pusher section and the hinge section are connected by a bending connection, the bending direction of the connection between the two is toward the clutch body, and the length of the hinge section is smaller than the length of the pusher section, when the pusher is driven by the hinge section, the thrust direction applied by the hinge section to the pusher is more inclined to the axis direction of the pusher, thereby improving the transmission efficiency of the force and reducing the sliding friction loss between the pusher and the pusher shell.

[0026] The present invention is further configured as follows: a connecting plate is provided on the driver, the connecting plate is connected to a mounting plate, and the driver is mounted and fixed via the mounting plate.

[0027] By adopting the above technical solution, the installation process of the driver can be simplified through the combination of the connecting plate and the mounting plate. The installer can more easily position the driver to the desired position and fix it through the mounting plate without complicated installation steps or tools.

[0028] The present invention is further configured as follows: a sliding cylinder is rotatably sleeved on one end of the rotating rod slidably disposed in the long slot, a spring is disposed between the sliding cylinder and both ends of the long slot, and the outer diameter of the sliding cylinder is equal to the slot width of the long slot.

[0029] By adopting the above technical solution, the smoothness of the sliding of the rotating rod in the long groove is improved. When the rotating rod slides in the long groove, the outer diameter of the slide cylinder is equal to the width of the long groove, so that during the sliding process, a relatively close contact can be maintained, thereby reducing the transmission error caused by the gap error and improving the transmission efficiency.

[0030] The control method of the adaptive clutch actuator comprises the following steps:

[0031] S1: When driving a car, the driver steps on the clutch pedal to control the driver to pull the pushing section of the push plate, so that the push plate rotates with the rotating rod as the center, thereby driving the hinge section to rotate, and the hinge section pushes the pushing member, so that the pushing member presses the spring diaphragm;

[0032] S2: When the spring diaphragm is pressed, the distance between the push piece and the rotating rod, which are hinged to the hinge section, changes due to the rotation of the hinge section. At this time, the rotating rod will slide along the long groove, so as to always keep the distance between the hinge point of the rotating rod and the push piece unchanged;

[0033] S3: After the spring diaphragm is pressed by the push piece, the clutch opens and the driver performs the gear shifting operation;

[0034] S4: After the gear shift is completed, the clutch pedal is released. Due to the negative pressure in the negative pressure chamber, the push piece is pulled to reset, so that the push plate rotates with the rotating rod as the center, so that it is reset to the normal state and the clutch is closed.

[0035] By adopting the above technical solution, during the clutch opening process, the spring diaphragm is pressed, and the distance between the push piece and the rotating rod is kept constant by sliding adjustment of the long slot, which helps to maintain the stability of the entire system. In addition, this design also ensures the reliable operation of the clutch during the gear shifting process, avoiding gear shifting failures caused by improper operation or mechanical failures.

[0036] The beneficial effect of the present invention is that by arranging an abutment block on the diaphragm spring and cooperating with the guide groove arranged on the pusher, when the diaphragm spring is pressed, the elastic sheet on the diaphragm spring will not directly generate friction with the pusher, thereby avoiding friction loss of the elastic sheet and increasing the service life of the diaphragm spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0038] Figure 2 It is a schematic diagram of the three-dimensional structure of the diaphragm spring of the present invention;

[0039] Figure 3 It is a schematic diagram of the three-dimensional structure of the connection between the diaphragm spring and the push piece of the present invention;

[0040] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0041] Figure 5 It is a schematic diagram of the three-dimensional structure of the sliding member of the present invention;

[0042] Figure 6 It is a schematic diagram of the three-dimensional structure of the driving component of the present invention;

[0043] Figure 7 It is a cross-sectional view of the interior of the push shell of the present invention.

[0044] In the figure: 1. clutch body; 2. diaphragm spring; 201. elastic sheet; 202. abutment block; 203. roller; 3. separation shaft; 4. pushing member; 401. guide groove; 402. annular piston; 5. sliding member; 501. lower groove; 502. small slider; 503. center groove; 6. pushing shell; 601. piston chamber; 602. buffer plate; 603. buffer cotton; 7. driving assembly; 701. pushing plate; 7011. hinge section; 7012. pushing section; 702. driver; 703. rotating rod; 704. long groove; 705. slide cylinder; 706. connecting plate; 707. mounting plate. DETAILED DESCRIPTION

[0045] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0046] like Figure 1 As shown, the adaptive clutch actuator and the control method thereof include:

[0047] The clutch body 1, as a driving object, is used to achieve temporary separation between the automobile engine and the gearbox, so as to facilitate the driver to perform gear shifting operations.

[0048] The diaphragm spring 2 is installed in the clutch body 1 and is used to control the separation and contact of the friction plate inside the clutch body 1. The diaphragm spring 2 is composed of a plurality of elastic sheets 201 arranged in an array equidistantly around the circumference. An abutment block 202 is detachably installed at the end of each diaphragm spring 2 near the center of the array. A roller 203 is rotatably provided on the abutment block 202, and an area of ​​the roller 203 greater than one-half is sunk inside the abutment block 202. When the diaphragm spring 2 is pressed, the outer ring of the diaphragm spring 2 separates the friction plate in the clutch from the engine wheel due to the outward expansion of the elastic sheet 201.

[0049] A separation shaft 3, one end of which is fixed to the clutch body 1, and the other end is connected to the gearbox; a push shell 6, which is coaxially sleeved on the separation shaft 3;

[0050] A push piece 4, the push piece 4 is sleeved on the separation shaft 3, a guide groove 401 is provided at one end of the push piece 4 close to the diaphragm spring 2, the abutment block 202 is slidably engaged in the guide groove 401, and a sliding piece 5 is slidably provided at the bottom of the guide groove 401 to abut against the roller 203;

[0051] The driving assembly 7 comprises a push plate 701, wherein the push plate 701 is hinged to the pushing member 4;

[0052] When the diaphragm spring 2 is pushed by the pushing member 4 , the abutting block 202 slides in the guiding groove 401 .

[0053] The driving assembly 7 controls the movement of the pushing member through the push plate 701. When the pushing member presses the diaphragm spring 2, the end face of the pushing member is not in direct contact with the diaphragm spring 2, but is movably clamped in the guide groove 401 through the abutment block 202 connected to the end of the elastic sheet 201, and the protruding part of the roller 203 at the end abuts against the sliding member 5, so that when the elastic sheet 201 is pressed to fit toward the center of the circle, the roller 203 can roll with the sliding member 5 as the center of the circle, and slide with the sliding member 5, thereby adapting to the position change caused by the elastic sheet 201 being pressed.

[0054] The cooperation of the abutment block 202 and the guide groove 401 prevents the elastic sheet 201 from directly contacting the pusher and generating friction when the diaphragm spring 2 is pressed by the pusher, so that the elastic sheet 201 can be separated from the pusher each time it is pressed, and when the elastic sheet 201 is pressed, the elastic sheet 201 bends toward the center of the entire elastic diaphragm, and the abutment block 202 installed at the end of the elastic sheet 201 can rotate relatively and slide in the guide groove 401, so that the bending of the elastic sheet 201 will not be interfered, ensuring that the diaphragm spring 2 can be compressed and expanded normally. In addition, the friction between the diaphragm spring 2 and the pusher is reduced by the sliding engagement of the abutment block 202 and the guide groove 401, which can also reduce the thrust required by the pusher to push the diaphragm spring 2 to a certain extent, so that it is easier to control when the pusher pushes the diaphragm spring 2. It avoids the sliding friction between the elastic sheet 201 and the pusher 4 due to repeated sliding, making the diaphragm spring 2 more durable and improving the overall service life of the clutch.

[0055] like Figure 3As shown, an annular piston 402 is provided at one end of the pushing member 4 away from the diaphragm spring 2, and a piston cavity 601 is provided in the pushing shell 6. The annular piston 402 is slidably engaged in the piston cavity 601. When the pushing member pushes the diaphragm spring 2, the annular piston 402 slides in the piston cavity 601, so that the volume in the piston cavity 601 increases, resulting in the formation of negative pressure inside the piston cavity 601, which generates an inward pulling force on the annular piston 402. When the driver releases the clutch pedal, the annular piston 402 will be pulled under the action of negative pressure, so that the gas pressure in the piston cavity 601 approaches the critical point of atmospheric pressure. The annular piston 402 and the pushing member are an integrated structure, so that the pushing member can be quickly and automatically reset.

[0056] The setting of the annular piston 402 and the piston chamber 601 can provide a restoring pulling force for the diaphragm spring 2, so that after the driver releases the clutch pedal, the diaphragm spring 2 can be quickly reset through the recovery force of the piston, preventing the pusher from being reset in time, resulting in the diaphragm spring 2 being unable to reset quickly, thereby improving the safety of the entire device.

[0057] like Figure 2 , Figure 3 and Figure 4 As shown, the length of the abutment block 202 is greater than the depth of the guide groove 401, ensuring that a gap for relative movement is left between the elastic sheet 201 connected to the abutment block 202 and the pushing member, further avoiding the elastic sheet 201 on the diaphragm spring 2 from directly abutting against the end face of the pushing member, so that when the pushing member pushes the diaphragm spring 2, no sliding friction is generated between the elastic sheet 201 and the pushing member, thereby avoiding friction loss of the diaphragm spring 2, and the length of the guide groove 401 is greater than the length of the abutment block 202 in the sliding direction, ensuring that the abutment block 202 can slide in the guide groove 401 without interference, thereby preventing interference when the elastic sheet 201 is pressed.

[0058] It should be noted that the sliding member 5 is slidably disposed in the guide groove 401. Figure 5 As shown, a lower groove 501 is provided on one end face of the sliding member 5, and small sliders 502 extend outward from the bottom positions of the two side faces of the sliding member 5, and the two small sliders 502 can be retracted in the sliding member 5 body by pressing, and automatically pop out when released, and the small sliders 502 are used to slide and snap into the slide groove at the bottom of the guide groove 401, and a central groove 503 is provided on the side opposite to the lower groove 501, which is used to slide and snap into the guide rail provided at the center of the bottom plate of the guide groove 401, so that the snapping of the two is tighter. The protruding part of the roller 203 installed at the end of the abutment block 202 slides and snaps into the guide groove 401, and when the abutment block 202 rotates and slides, the roller 203 rotates in the lower groove 501.

[0059] By configuring the sliding member 5 and the roller 203 , the end of the abutment block 202 can slide relatively smoothly in the guide groove 401 , and the detachable abutment block 202 can facilitate subsequent maintenance of the device.

[0060] like Figure 6 As shown, the driving assembly 7 further includes a driver 702, which is specifically a cylinder, and one end of the driver 702 is hinged to one end of the push plate 701;

[0061] Specifically, an annular through-hole buckle is processed at the end of the push rod of the driver 702, and a notch with a height greater than the annular through-hole buckle is opened at the end of the push plate 701, and a cylindrical bearing is installed on the notch. By inserting the annular through-hole buckle into the notch, the cylindrical bearing passes through the center of the annular copper buckle, thereby forming a hinge between the Xi'an push plate 701 and the driver 702. When the driver 702 pushes the push plate 701, the push plate 701 and the push rod ends extending from the driver 702 rotate around the cylindrical bearing, thereby achieving an angle change.

[0062] A hinge hole is provided in the middle of the push plate 701, and a rotating rod 703 is provided through the hinge hole. A long groove 704 is provided at one end of the rotating rod 703. The long groove 704 is used to compensate for the distance between the rotating point of the push plate 701 and the hinge point of the pushing member when the push plate 701 rotates. During the rotation of the push plate 701, the rotating rod 703 will slide adaptively along the long groove 704.

[0063] By coordinating the push plate 701 with the long slot 704 and the rotating rod 703, the push plate 701 can use the path in the direction of the long slot 704 as the center of activity, and transfer the thrust on the driver 702 to the push member in a rotational manner, thereby controlling the push of the diaphragm spring 2 by the push member.

[0064] Specifically, when the driver 702 pushes one end of the push plate 701 through the push rod, the push plate 701 rotates with the rotating rod 703 as the center. During the rotation, the other end of the push plate 701 is hinged to the pushing member, thereby pulling the pushing member in the opposite direction. At this time, as the push plate 701 pulls the pushing member to move, the distance between the hinge point between the pushing member and the push plate 701 and the rotating rod 703 gradually becomes smaller. Therefore, the rotating rod 703 will move along the long groove 704 in the direction away from the pushing member, thereby compensating for the reduced distance, thereby preventing the pushing member from being unable to be pushed by the push plate 701, so that the push plate 701 can always drive the pushing member to move with the same pushing force.

[0065] On the contrary, when the driver 702 pulls one end of the push plate 701 through the push rod, the other end of the push plate 701 pushes the push member to press the diaphragm spring 2, so that the friction plate in the clutch body 1 is separated from the engine turntable. At this time, the distance between the hinge point between the push member and the push plate 701 and the rotating rod 703 gradually increases, so the rotating rod 703 will move along the long slot 704 toward the direction close to the push member, thereby compensating for the increased distance.

[0066] By setting the driving assembly 7, the diaphragm spring 2 can be pressed evenly, and each elastic sheet 201 constituting the diaphragm spring 2 can be pressed by the pusher with the same force, so that the clutch effect between the clutch body 1 and the engine turntable is more stable. At the same time, the elastic sheet 201 does not need to directly contact the pusher when pressed, but directly slides and engages with the guide groove 401 inside the pusher through the detachable and replaceable abutment block 202. The diaphragm spring 2 is not easily damaged, which increases the service life of the entire clutch, so that when maintenance is needed, it only needs to replace the abutment block 202 or the roller 203 to achieve rapid maintenance of the clutch.

[0067] Furthermore, the push plate 701 includes a hinge section 7011 and a pushing section 7012, the hinge hole in the middle of the push plate 701 is the connection point between the hinge section 7011 and the pushing section 7012, the hinge section 7011 and the pushing section 7012 are bent and connected, and when the push plate 701 is installed, the angle less than one hundred and eighty degrees formed by the bent connection between the hinge section 7011 and the pushing section 7012 is toward the direction of the clutch body 1.

[0068] One end of the push plate 701 hinged to the driver 702 is the pushing section 7012, and the other end hinged to the pushing member is the hinge section 7011, wherein the length of the hinge section 7011 is smaller than the length of the pushing section 7012, so that under the action of the lever principle, with the rotating rod 703 as the rotation fulcrum, when the driver 702 controls the pushing section 7012 to rotate and drive the hinge section 7011 to rotate, the longer pushing section 7012 can drive the hinge section 7011 to rotate with less force, thereby reducing the power required by the driver 702, which is conducive to the reasonable distribution of driving energy and energy saving.

[0069] By dividing the push plate 701 into two bent sections, a greater torque can be transmitted to the pusher through the push plate 701 during torque transmission. Since the pusher section 7012 and the hinge section 7011 are bent and connected, the bending direction of the connection between the two faces the direction of the clutch body 1, so that when the pusher is driven by the hinge section 7011, the thrust direction applied by the hinge section 7011 to the pusher is more inclined to the axis direction of the pusher, thereby improving the transmission efficiency of the force and reducing the sliding friction loss between the pusher and the push shell 6.

[0070] Furthermore, a reversing spring is sleeved in the hinge hole between the hinge section 7011 and the pushing section 7012. The reversing spring can cooperate with the negative pressure state of the annular piston 402 and the piston chamber 601 to enable the pushing member to be quickly reset.

[0071] The driver 702 is provided with a connecting plate 706, and the connecting plate 706 is connected to a mounting plate 707. The driver 702 is installed and fixed by the mounting plate 707. The combination of the connecting plate 706 and the mounting plate 707 can simplify the installation process of the driver 702. The installer can more easily position the driver 702 to the desired position and fix it by the mounting plate 707 without complicated installation steps or tools.

[0072] Furthermore, one end of the rotating rod 703 slidably disposed in the long slot 704 is rotatably sleeved with a slide cylinder 705 , a spring is disposed between the slide cylinder 705 and both ends of the long slot 704 , and the outer diameter of the slide cylinder 705 is equal to the slot width of the long slot 704 .

[0073] The spring is arranged in the long slot 704, and plays a certain role in limiting the slide 705. The smoothness of the rotation rod 703 sliding in the long slot 704 is improved. When the rotation rod 703 slides in the long slot 704, the outer diameter of the slide 705 is equal to the width of the long slot 704, so that during the sliding process, a relatively close contact can be maintained, thereby reducing the transmission error caused by the gap error and improving the transmission efficiency.

[0074] By setting the slide 705, the rotating rod 703 is rotated and set in the slide 705, and the installation of the spring is coordinated to make the whole compensation structure more stable, and the vibration generated during the sliding process is smaller, and it can cooperate with the annular piston 402 to promote the resetting of the pusher to a certain extent.

[0075] like Figure 7 As shown, a buffer plate 602 is provided on the push shell 6 at the inlet end of the piston chamber 601 in the circumferential direction, and a buffer cotton 603 is attached between the buffer plate 602 and the inner ring wall of the push shell 6. When the push shell 6 is installed, the buffer plate 602 is installed in the direction close to the push plate 701.

[0076] When the push plate 701 controls the pusher to press the diaphragm spring 2, the pusher will be subjected to a force in the direction perpendicular to the diaphragm spring 2 and a pulling force in the direction of the push plate 701 due to the thrust. Among them, the pulling force in the direction of the push plate 701 causes the pusher to squeeze the inner wall of the push shell 6 close to the push plate 701, which will increase the friction between the two and waste unnecessary driving energy. By installing a buffer plate 602 and a buffer cotton 603 on the side wall of the push shell 6 close to the push plate 701, when the pusher squeezes the inner wall of the push shell 6, the buffer cotton 603 will be compressed, thereby reducing the fit between the inner wall of the push shell 6 and the pusher, and reducing the friction between the two.

[0077] The control method of the adaptive clutch actuator comprises the following steps:

[0078] S1: When driving a car, the driver steps on the clutch pedal to control the driver 702 to pull the pushing section 7012 of the push plate 701, so that the push plate 701 rotates with the rotating rod 703 as the center, thereby driving the hinge section 7011 to rotate, and the hinge section 7011 pushes the pushing member 4, so that the pushing member 4 presses the spring diaphragm;

[0079] S2: When the spring diaphragm is pressed, the hinge section 7011 rotates, and the distance between the push member 4 and the rotating rod 703, which are hinged to the hinge section 7011, changes. At this time, the rotating rod 703 slides along the long groove 704, so as to always keep the distance between the hinge point of the rotating rod 703 and the push member 4 unchanged.

[0080] S3: After the spring diaphragm is pressed by the push piece 4, the clutch is opened and the driver performs a gear shift operation;

[0081] S4: After the gear shift is completed, the clutch pedal is released. Due to the negative pressure in the negative pressure chamber, the push member 4 is pulled to reset, so that the push plate 701 rotates around the rotating rod 703, so that it is reset to the normal state, and the clutch is closed.

[0082] Working principle: the driving assembly 7 controls the push plate 701 to rotate, and drives the pusher to move by the lever principle, thereby pushing the diaphragm spring 2. The diaphragm spring 2 is formed by a circular array of multiple elastic sheets 201. When the pusher is pushed, the diaphragm spring 2 is pressed. Due to the abutment block 202 at the end of the elastic sheet 201 and the guide groove 401 opened on the pusher, there is no direct contact between the diaphragm spring 2 and the pusher. The abutment block 202 rotates and slides in the guide groove 401, thereby adapting to the position change caused by the elastic sheet 201 being pressed. The abutment block 202 and the elastic sheet 201 are detachably connected, which is easy to replace, thereby greatly reducing the loss rate of the entire diaphragm spring 2 and improving the service life of the clutch body 1.

[0083] When the pushing member is pushed, the distance between the push plate 701 and the hinge point of the pushing member changes with the rotation of the push plate 701 and the sliding of the pushing member, which makes it impossible for the pushing member to move normally. By setting the rotation point of the push plate 701 to the rotating rod 703, and sliding the rotating rod 703 in the long groove 704, when the distance between the hinge point between the pushing member and the push plate 701 and the rotating rod 703 changes, the rotating rod 703 can slide along the long groove 704, thereby quickly compensating for the changed distance, so that the pushing member can move normally.

[0084] Through the setting of the annular piston 402, when the pushing member presses the diaphragm spring 2, the annular piston 402 moves in the direction of expanding the piston chamber 601, while the total amount of air in the piston chamber 601 remains unchanged, thereby generating a negative pressure inside the piston chamber 601. When the driver 702 releases the pulling force on the pushing member, the negative pressure exerts a pullback force on the annular piston 402, causing the annular piston 402 to move in the direction of reducing the volume of the piston chamber 601, thereby enabling the pushing member to be quickly reset.

[0085] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An adaptive clutch actuator, characterized in that: include: Clutch body (1); A diaphragm spring (2) is used to control the separation and contact of the friction plate inside the clutch body (1), the diaphragm spring (2) being formed by a circular array of multiple elastic plates (201), an abutment block (202) being provided at the end of the diaphragm spring (2) close to the center of the array, and a roller (203) being rotatably provided on the abutment block (202); A release shaft (3), one end of which is fixed to the clutch body (1) and the other end of which is connected to the gearbox; A push piece (4) is sleeved on the separation shaft (3); a guide groove (401) is provided at one end of the push piece (4) close to the diaphragm spring (2); the abutment block (202) is slidably engaged in the guide groove (401); a sliding piece (5) is slidably arranged at the bottom of the guide groove (401) and is in slidable abutment with the roller (203); A pushing shell (6) is coaxially sleeved on the separation shaft (3); A driving assembly (7), comprising a push plate (701), wherein the push plate (701) is hingedly connected to the pushing member (4); When the diaphragm spring (2) is pushed by the pushing member (4), the abutment block (202) slides in the guide groove (401).

2. The adaptive clutch actuator according to claim 1, characterized in that: An annular piston (402) is provided at one end of the pushing member (4) away from the diaphragm spring (2), a piston chamber (601) is provided in the pushing shell (6), and the annular piston (402) is slidably engaged in the piston chamber (601).

3. The adaptive clutch actuator according to claim 1, characterized in that: The length of the abutment block (202) is greater than the depth of the guide groove (401), and the length of the guide groove (401) is greater than the length of the abutment block (202) in the sliding direction.

4. The adaptive clutch actuator according to claim 2, characterized in that: A buffer plate (602) is provided on the push shell (6) at the inlet end of the piston chamber (601) in the circumferential direction, and buffer cotton (603) is attached between the buffer plate (602) and the inner ring wall of the push shell (6). When the push shell (6) is installed, the buffer plate (602) is installed in a direction close to the push plate (701).

5. The adaptive clutch actuator according to claim 1, characterized in that: The driving assembly (7) further comprises a driver (702), one end of which is hinged to one end of the push plate (701), a hinge hole is provided in the middle of the push plate (701), a rotating rod (703) is provided through the hinge hole, a long groove (704) is provided at one end of the rotating rod (703), and the long groove (704) is used to compensate for the distance between the rotating point of the push plate (701) and the hinge point of the push member when the push plate (701) rotates, and the rotating rod (703) will slide adaptively along the long groove (704) during the rotation of the push plate (701).

6. The adaptive clutch actuator according to claim 5, characterized in that: The push plate (701) comprises a hinge section (7011) and a pushing section (7012), and a hinge hole in the middle of the push plate (701) is a connection point between the hinge section (7011) and the pushing section (7012).

7. The adaptive clutch actuator according to claim 6, characterized in that: The hinge section (7011) and the pushing section (7012) are connected in a bent manner. When the push plate (701) is installed, an angle less than one hundred and eighty degrees formed by the bent connection between the hinge section (7011) and the pushing section (7012) faces the direction of the clutch body (1).

8. The adaptive clutch actuator according to claim 5, characterized in that: The driver (702) is provided with a connecting plate (706), the connecting plate (706) is connected to a mounting plate (707), and the driver (702) is mounted and fixed via the mounting plate (707).

9. The adaptive clutch actuator according to claim 5, characterized in that: One end of the rotating rod (703) slidably disposed in the long slot (704) is rotatably sleeved with a slide cylinder (705), a spring is disposed between the slide cylinder (705) and both ends of the long slot (704), and the outer diameter of the slide cylinder (705) is equal to the slot width of the long slot (704).

10. A control method for an adaptive clutch actuator, the method using the actuator according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: When driving a car, the driver steps on the clutch pedal to control the driver (702) to pull the pushing section (7012) of the push plate (701), so that the push plate (701) rotates with the rotating rod (703) as the center, thereby driving the hinge section (7011) to rotate, and pushing the pushing member (4) through the hinge section (7011), so that the pushing member (4) presses the spring diaphragm; S2: When the spring diaphragm is pressed, the distance between the push member (4) and the rotating rod (703) changes due to the rotation of the hinged section (7011). At this time, the rotating rod (703) slides along the long groove (704), thereby compensating for the changed distance between the rotating rod (703) and the push member (4); S3: After the spring diaphragm is pressed by the push piece (4), the clutch is opened and the driver performs a gear shift operation; S4: After the gear shift is completed, the clutch pedal is released. Due to the negative pressure in the negative pressure chamber, the push member (4) is pulled back to its original position, so that the push plate (701) rotates around the rotating rod (703) to return to its normal state, and the clutch is closed.

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