Integrated clutch actuating mechanism
Through the integrated clutch actuator, the use of hydraulic bearings and directly integrated position sensors, the problems of numerous parts and complex structures of clutch actuators in the prior art are solved, and high reliability and optimized vehicle shifting performance are achieved.
Patent Information
- Application Number
- CN202422045166.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing clutch actuators have many components, complex structure, poor reliability, and poor general usage. The accuracy of clutch position signal reading is poor, resulting in poor gear shifting performance of the vehicle.
An integrated clutch actuator is provided, including a clutch shell, a separation bearing seat, a hydraulic bearing and a position sensor. The overall parts are few and the volume is small. The position sensor is directly integrated on the hydraulic bearing, which directly reads the working position of the hydraulic bearing, and reads the position signal directly and accurately.
It achieves streamlined structure, high reliability, small space, and directly reads the position signal of the separate joint position, optimizes the gear shifting performance of the entire vehicle, can adapt to the installation height of various types of clutches, and has good general use.
Smart Images
Figure CN222963318U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clutch components, and particularly relates to an integrated clutch actuator. Background Art
[0002] The release bearing is located between the clutch and the transmission. Its function is to push the clutch pressure plate to separate it from the clutch disc. When the driver presses the clutch pedal, the force transmitted through the hydraulic system (master cylinder and slave cylinder) causes the release bearing to move towards the center of the clutch pressure plate, which causes the pressure plate to move away from the clutch disc, thus disconnecting the engine from the transmission system. When the driver releases the pedal, the release bearing is pulled back to its original position by the spring and the clutch is re-engaged.
[0003] Some clutch actuators on the market use a master cylinder structure to push the release fork arm, and then push the bearing, or use an electronically controlled clutch mechanism to convert it into the hydraulic power of a hydraulic bearing to achieve the clutch function. They have a large number of components, a complex structure, and poor reliability. The installation heights of various different clutches are different, so the clutch actuator needs to be redesigned, and its versatility is poor. And due to the complex structure, some clutch structures indirectly read the position signal of the clutch, and the reading accuracy is poor, resulting in poor shifting performance of the whole vehicle. Summary of the Utility Model
[0004] Technical Problems to be Solved by the Utility Model
[0005] Aiming at the technical problems of the existing clutch actuator, such as having a large number of components, a complex structure, poor reliability, poor versatility, and poor accuracy in reading the position signal of the clutch, the utility model provides an integrated clutch actuator, which has a simple structure, high reliability, small occupied space, directly reads the position signal of the separation and engagement position, optimizes the shifting performance of the whole vehicle, and can adapt to the installation heights of various different clutches, with good versatility.
[0006] Technical Solution
[0007] To solve the above problems, the technical solution provided by the utility model is as follows:
[0008] An integrated clutch actuator includes a clutch housing; a release bearing seat, which is provided with a clutch oil pipe interface and an oil passage interface. The clutch oil pipe interface is connected to a hydraulic oil pipe, and the oil passage interface is arranged on the end face of the release bearing seat. The release bearing seat is fixedly connected to the clutch housing; a hydraulic bearing, which has an oil hole at its axial bottom, is in cooperation and communication with the oil passage interface, and has a magnet fixedly connected to its cylindrical side, and the number of the magnets is one; a position sensor, which is fixedly connected to the release bearing seat and is in relative cooperation with the magnet to detect the position of the hydraulic bearing.
[0009] The entire clutch actuator has few parts and a small volume. It only requires a hydraulic bearing to operate, with a higher overall integration level and reliability. The position sensor is directly integrated on the hydraulic bearing, and can directly read the working position of the hydraulic bearing, that is, the disengaging and engaging position of the clutch. The position signal is read directly and accurately, which is beneficial to the software control of the transmission TCU and optimizes the vehicle shifting performance. This actuator system has good versatility and can adapt to the installation heights of various different clutches. For different engines, different clutches and transmissions, the positions of the clutches relative to the hydraulic bearings are different. In this case, this clutch actuator only needs to change the installation height of the release bearing seat to be installed, and the rest of the components can remain in their original states. The key point of the installation height is that the connection of the hydraulic oil pipe to the release bearing seat is located at the bottom of the release bearing seat, and the clutch can be installed at any position on the axis of the hydraulic bearing, and the hydraulic bearing oil pipe will not be affected and there will be no interference.
[0010] Optionally, the release bearing seat is fixedly connected to the clutch housing by bolts, the hydraulic bearing is fixedly connected to the release bearing seat by bolts, and the release bearing seat is provided with mounting holes.
[0011] Connecting the release bearing seat to the clutch housing and the hydraulic bearing to the release bearing seat by bolts can ensure the structural stability of the entire clutch system. The bolt connection provides sufficient rigidity and reduces the risk of loosening caused by vibration or impact. Using bolt connection facilitates the installation and disassembly of the release bearing seat and the hydraulic bearing, and simplifies the maintenance process. When these components need to be replaced or inspected, they can be easily removed by simply loosening the bolts, reducing the maintenance difficulty and time cost. And bolt connection is a mature mechanical connection method with a relatively low manufacturing cost.
[0012] Optionally, the mounting holes are divided into seat holes and bearing holes. The seat holes fixedly connect the release bearing seat to the clutch housing, the bearing holes fixedly connect the hydraulic bearing to the release bearing seat, and the seat holes and the bearing holes are closely arranged.
[0013] The seat holes and the bearing holes are closely arranged, and the distance between them is reduced. On the release bearing seat, the torque formed by the stress of the seat holes and the bearing holes can be reduced, improving the structural stability of the release bearing seat.
[0014] Optionally, a ring convex is provided at the orifice of the oil hole.
[0015] The ring convex can block the oil fluid from passing through the orifice of the oil hole to form a seal.
[0016] Optionally, a sealing ring is provided at the convex orifice of the ring convex.
[0017] The sealing ring forms a second layer of seal, further enhancing the sealing performance.
[0018] Optionally, a mounting bracket extends from the bottom side of the hydraulic bearing, the position sensor is fixedly connected to the mounting bracket, and the mounting bracket is provided with retaining arms on both sides of the position sensor.
[0019] The presence of the retaining arms can prevent the position sensor from being directly impacted by external forces, increasing the overall stability of the system. The design of the retaining arms on both sides of the position sensor can effectively prevent the position sensor from being accidentally collided or squeezed, reducing the risk of sensor damage.
[0020] Optionally, the release bearing housing is an integrally formed structure.
[0021] An integrally formed structure usually has higher structural strength and rigidity than a spliced structure because the number of welding or connection points is reduced, thus reducing potential weaknesses. The integrally formed release bearing housing does not need to be assembled from multiple components, so problems caused by assembly errors are reduced.
[0022] Optionally, the release bearing housing is a convex structure, the convex is a bearing mounting port, and reinforcing ribs are provided around the bearing mounting port.
[0023] The convex structure provides the oil path of the oil passage interface, and the reinforcing ribs improve the overall structural strength of the release bearing housing.
[0024] Beneficial Effects
[0025] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:
[0026] The technical solution provided by the present utility model is provided with a clutch housing, a release bearing housing, a hydraulic bearing and a position sensor. The overall number of parts is small and the volume is small. Only one hydraulic bearing is required to execute, with higher integration and higher reliability. The position sensor is directly integrated on the hydraulic bearing, and the working position of the hydraulic bearing, that is, the separation and engagement position of the clutch, can be directly read. The position signal reading is direct and accurate, which is beneficial to the software control of the transmission TCU and optimizes the vehicle shifting performance. The execution system has good versatility and can adapt to the installation heights of various different clutches. For different engines, different clutches and transmissions, the positions of the clutches relative to the hydraulic bearings are different. In response to this situation, this clutch actuator only needs to change the installation height of the release bearing housing to be installed, and the rest of the components can remain in their original states. The key point of the installation height is that the connection of the hydraulic oil pipe to the release bearing housing is located at the bottom of the release bearing housing, and the installation position of the clutch is at any position on the axis of the hydraulic bearing, and the hydraulic bearing oil pipe is not affected and no interference will occur. Description of the Drawings
[0027] Figure 1Schematic diagram of the shell removal structure of an integrated clutch actuator proposed in an embodiment of the present utility model;
[0028] Figure 2 Schematic diagram of the structure of the release bearing seat of an integrated clutch actuator proposed in an embodiment of the present utility model;
[0029] Figure 3 Perspective one of the release bearing seat and the hydraulic bearing assembly of an integrated clutch actuator proposed in an embodiment of the present utility model;
[0030] Figure 4 Perspective two of the release bearing seat and the hydraulic bearing assembly of an integrated clutch actuator proposed in an embodiment of the present utility model;
[0031] 1. Hydraulic bearing; 101. Oil hole; 102. Mounting bracket; 103. Stop arm; 2. Release bearing seat; 201. Clutch oil pipe interface; 202. Oil passage interface; 203. Mounting hole; 204. Bearing mounting port; 3. Position sensor; 4. Magnet; 5. Hydraulic oil pipe; 6. Clutch housing. Detailed implementation manners
[0032] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the accompanying drawings and embodiments.
[0033] Embodiment
[0034] Combined with the attached Figure 1 , an integrated clutch actuator includes a clutch housing 6, a release bearing seat 2, a hydraulic bearing 1, and a position sensor 3. The release bearing seat 2 is installed on the clutch housing 6. One end of the hydraulic oil pipe 5 is connected and sealed tightly to the oil hole 101 of the release bearing seat 2, and the other end is connected to a hydraulic drive unit. The hydraulic drive unit transmits through the hydraulic oil pipe 5 and the oil passage of the release bearing seat 2 to the hydraulic bearing 1. There is an oil hole 101 at the bottom of the hydraulic bearing 1. After the hydraulic bearing 1 is assembled, the oil hole 101 corresponds to the oil hole 101 of the release bearing seat 2, and an O-ring is used for sealing between them. A position sensor 3 (with a wire harness) is assembled and set on the piston cylinder body of the hydraulic bearing 1, and the position sensor 3 is fixed to the bottom cylinder body of the piston without moving. A magnet 4 is fixed on the bearing of the hydraulic bearing 1, and the magnet 4 can move along with the bearing of the hydraulic bearing 1 under the working conditions of the hydraulic bearing 1 being compressed and pushed outwards. The bearing end face of the hydraulic bearing 1 acts on the clutch release finger to push the clutch to disengage. When the hydraulic pressure of the hydraulic bearing 1 is released, the clutch compresses the hydraulic bearing 1 to restore its initial state.
[0035] Since the magnet 4 is fixed on the bearing of the hydraulic bearing 1 and moves together with the bearing, its movement forms the moving stroke of the bearing, which is the moving stroke of the clutch release finger. At this time, the position sensor 3 can, through the movement of the magnet 4, feedback different PWM values at different positions to determine different clutch release strokes. PWM (Pulse Width Modulation) is a technology that simulates analog signals by changing the duty cycle of a pulse signal. PWM signals are usually used to control the speed or brightness of devices such as motors, LED brightness, and heating elements. By changing the PWM value, the rotation speed of the motor can be controlled. The position sensor 3 feeds back the position stroke to the control unit TCU of the transmission in real time, and the TCU controls the operation of the hydraulic drive unit according to the position information to complete the clutch execution action. TCU is the abbreviation of "Transmission Control Unit", which is usually called the transmission control unit or transmission control module in Chinese. The TCU is an important electronic component in the automatic transmission system, and it is responsible for managing and controlling the operation of the automatic transmission.
[0036] Combined with the attached Figure 2 , the release bearing seat 2 is provided with a clutch oil pipe interface 201 and an oil passage interface 202. The clutch oil pipe interface 201 is connected to the hydraulic oil pipe 5, and the oil passage interface 202 is arranged on the end face of the release bearing seat 2. The release bearing seat 2 is fixedly connected to the clutch housing 6.
[0037] The mounting hole 203 is divided into a seat hole and a bearing hole. The seat hole fixedly connects the release bearing seat 2 and the clutch housing 6, and the bearing hole fixedly connects the hydraulic bearing 1 and the release bearing seat 2. The seat hole and the bearing hole are closely arranged. The seat hole is lower than the bearing hole, and the side of the bearing hole is provided with an inward concave arc surface, and the arc surface fits the edge curve of the seat hole to avoid bolt interference in the seat hole.
[0038] The axial bottom of the hydraulic bearing 1 is provided with an oil hole 101, which is in cooperation and communication with the oil passage interface 202. A magnet 4 is fixedly connected to its column side, and the number of magnets is one. One hydraulic bearing 1 simplifies the structure of the actuator. Around the single hydraulic bearing 1, setting the release bearing seat 2 and the position sensor 3 also simplifies the structure more and improves the reliability of the system.
[0039] The position sensor 3 is fixedly connected to the release bearing seat 2 and cooperates with the magnet 4 to detect the position of the hydraulic bearing 1.
[0040] The release bearing seat 2 and the clutch housing 6 are fixedly connected by bolts, the hydraulic bearing 1 and the release bearing seat 2 are fixedly connected by bolts, and the release bearing seat 2 is provided with a mounting hole 203.
[0041] Combined with the attached Figure 3, a ring protrusion is provided at the orifice of the oil hole 101. A sealing ring is provided at the protruding opening of the ring protrusion, and a groove for accommodating the sealing ring is provided inside the protruding opening, which can limit the sealing ring and improve the sealing performance of the sealing ring.
[0042] Combined with the attached Figure 4 , an installation bracket 102 extends from the bottom side of the hydraulic bearing 1. The position sensor 3 is fixedly connected to the installation bracket 102, and retaining arms 103 are provided on both sides of the installation bracket 102 with respect to the position sensor 3. The retaining arms 103 have the same length as the position sensor 3, which can effectively prevent the position sensor 3 from being accidentally collided or squeezed. The installation bracket 102 is two protruding strips, and the end is fixedly connected to the position sensor 3 by screws. The position sensor 3 is connected with an electric wire, and the electric wire extends outward from the outside of the separating bearing seat 2 and is connected to the controller.
[0043] The separating bearing seat 2 is an integrally formed structure. The separating bearing seat 2 is machined from a whole piece of metal, and then structures such as the installation hole 203 are machined through processes such as turning and milling, having relatively strong structural strength.
[0044] The separating bearing seat 2 is a convex structure, and the convex opening is the bearing installation opening 204. Reinforcing ribs are provided around the bearing installation opening 204. The reinforcing ribs connect the outer wall of the convex structure to the outermost circle of the separating bearing seat 2 by welding, improving the structural strength. The bearing installation opening 204 is adapted to the hydraulic bearing 1, playing a role of positioning and limiting.
[0045] Working principle:
[0046] The position sensor 3 feeds back the position signal to the TCU control unit through the movement of the magnet 4. The TCU control unit gives an instruction to the hydraulic drive unit according to the feedback of the position signal. The hydraulic drive unit drives the hydraulic oil to transmit power to the oil passage of the separating bearing seat 2 through the hydraulic oil pipe 5, and drives the hydraulic bearing 1 to push the clutch to separate.
[0047] The above has schematically described the present invention and its embodiments. This description is not restrictive, and what is shown in the drawings is only one of the embodiments of the present invention. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the creative purpose of the present invention, they should all fall within the protection scope of the present invention.
Claims
1. An integrated clutch actuator, characterized in that: include Clutch housing; A release bearing seat, which is provided with a clutch oil pipe interface and an oil channel interface, wherein the clutch oil pipe interface is connected to the hydraulic oil pipe, the oil channel interface is arranged on the end surface of the release bearing seat, and the release bearing seat is fixedly connected to the clutch housing; A hydraulic bearing, the axial bottom of which is provided with an oil hole, which is in communication with the oil passage interface, and the side surface of the column is fixedly connected with a magnet, the number of which is one; The position sensor is fixedly connected to the separation bearing seat and cooperates with the magnet to detect the position of the hydraulic bearing.
2. The integrated clutch actuator according to claim 1, characterized in that: The release bearing seat is fixedly connected to the clutch housing by bolts, the hydraulic bearing is fixedly connected to the release bearing seat by bolts, and a mounting hole is provided on the release bearing seat.
3. The integrated clutch actuator according to claim 2, characterized in that: The mounting hole is divided into a seat hole and a bearing hole. The seat hole is fixedly connected to the release bearing seat and the clutch housing, and the bearing hole is fixedly connected to the hydraulic bearing and the release bearing seat. The seat hole and the bearing hole are closely arranged.
4. The integrated clutch actuator according to claim 1, characterized in that: An annular bulge is provided at the orifice of the oil hole.
5. The integrated clutch actuator according to claim 4, characterized in that: A sealing ring is arranged at the convex opening of the annular convexity.
6. The integrated clutch actuator according to claim 1, characterized in that: A mounting frame extends from the side of the bottom of the hydraulic bearing, the position sensor is fixedly connected to the mounting frame, and the mounting frame is provided with stop arms on both sides of the position sensor.
7. The integrated clutch actuator according to claim 1, characterized in that: The release bearing seat is an integrally formed structure.
8. The integrated clutch actuator according to claim 1, characterized in that: The separation bearing seat is a convex structure, the convex is a bearing mounting opening, and reinforcing ribs are arranged around the bearing mounting opening.