Actuator for claw clutch, use method of actuator and automobile comprising actuator
By using multi-stage PID control means in the toothed claw clutch actuator, the movement of the toothed claw is solved in the prior art, the problem of the toothed claw impact during the shifting process of the gear shift of the toothed claw clutch actuator in the prior art is solved. Reduction of noise and wear is achieved.
Patent Information
- Application Number
- CN202310963598.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-01
- Publication Date
- 2025-02-14
AI Technical Summary
During the shifting process, existing toothed claw clutch actuators cause greater force impact and collision between the toothed claws, resulting in greater noise and wear.
Using multi-stage PID control means, the movement of the tooth-jaw clutch is segmented by setting multiple segmented PID target position information, especially setting an additional target position at the tooth-tooth position to reduce the number of tooth-jaw clutch. impact.
It effectively reduces the impact between the tooth claws, reduces noise and wear during gear shifting, and improves the working stability of the tooth claw clutch.
Smart Images
Figure CN119435589A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of automobile design and manufacturing, and in particular to an actuator for a claw clutch, a car comprising the actuator, and a method for using the actuator. Background Art
[0002] Dog clutch is a common clutch in the field of automobile design and manufacturing, which is used to cooperate with the shifter to perform mechanical shifting of gears.
[0003] In the prior art, a claw clutch actuator, also known as DCA, is generally used to drive the claw clutch through electricity to achieve the shifting function in the automobile transmission.
[0004] In this driving process, PID control is commonly used to control the motion of the relevant moving parts. As is well known in the art, PID (Proportional Integral Differential) control is a common motion control method in the field of industrial control. Generally, the control deviation is formed by setting the corresponding target position and detecting the current actual position, and the motion of the controlled object is controlled by adjusting the relevant control parameters.
[0005] Generally, such an actuator for a claw clutch may include a motor as a power source, a mechanical transmission mechanism, a toggle member with a fork, and a clutch plate driven by the toggle member. The motor drives the transmission mechanism and drives the toggle member and the clutch plate to move from a disconnected position to an engaged position. In the prior art, only the current position of the toggle member is collected, that is, only a sensor for the position of the toggle member exists. In addition, in order to control the output torque of the motor, the prior art generally performs single-stage PID control on the output torque of the motor by setting the target position of the toggle member at the engaged position and collecting the current position of the toggle member.
[0006] Based on the PID control principle, it is known to those skilled in the art that in each stage of PID control, the controlled target will first speed up, then slow down, and finally approach the set target point. In other words, if the PID controller used can only allow the setting of a single target position and perform single-stage PID control, then generally, the PID motion control will have a faster movement speed and greater kinetic energy in the initial stage, and a slower movement speed and less kinetic energy when approaching the target point. In the above-mentioned single-stage PID control, the tooth-to-tooth position belongs to the first half of the entire control stroke, which is the moment when the motor is driven with a large duty cycle. At this time, the motor speed is already very high, so the impact at the tooth-to-tooth position is relatively large.
[0007] Such actuator torque control may cause the clutch claws to impact and collide with each other with great force and generate great noise during the entire shifting process. Summary of the invention
[0008] Based on the above technical problems in the prior art, the present invention aims to provide an actuator for a claw clutch which can effectively reduce impact and collision during the gear shifting process.
[0009] To this end, the present invention provides an actuator for a dog clutch, wherein the dog clutch includes a first clutch plate and a second clutch plate with matching claws, and the first clutch plate and the second clutch plate can be actuated by the actuator to move closer to each other for engagement and move away from each other for disconnection.
[0010] The actuator comprises:
[0011] a toggle member, the toggle member being configured to drive the first clutch plate to move relative to the second clutch plate;
[0012] a power source configured to output power to drive the toggle member to move, and thereby drive the first clutch plate from a neutral position to an engaged position via a tooth-to-tooth position during a process of actuating the toggle member to engage the first clutch plate and the second clutch plate,
[0013] A PID controller, wherein the PID controller is configured to perform segmented PID control on the output of the power source by setting multiple segmented PID target position information indicating multiple groups of different relative positions of the first clutch plate relative to the second clutch plate and collecting the actual positions of related moving parts, wherein the first segmented PID target position information among the multiple segmented PID target position information indicates the tooth-to-tooth position.
[0014] By providing a PID controller that allows setting of multiple segmented PID target position information and segmented PID control, the actuator according to the present invention allows setting of additional target positions at tooth-to-tooth positions. According to the above PID principle, the movement speed of the controlled clutch disc at the target position of PID control will be relatively slow, so the impact between the claws can be effectively reduced, thereby reducing noise and wear.
[0015] According to a preferred embodiment of an actuator for a claw clutch of the present invention, the tooth-to-tooth position starts from a safety margin beyond the neutral position, passes through a tooth-to-tooth starting position and ends at a tooth-to-tooth ending position, wherein the first segmented PID target position information indicates the relative position after the tooth-to-tooth starting position.
[0016] According to a preferred embodiment of the actuator for a claw clutch of the present invention, it also includes a cam, the cam is provided with an inner cavity, a slider is provided in the inner cavity, a pressure-bearing elastic member is provided between the slider and the wall of the inner cavity, the power source drives the cam to rotate, the shifting member moves following the rotation of the cam, the pressure-bearing elastic member is configured to release elastic force to push the shifting member after the tooth-to-tooth position to cause the corresponding claws to engage, wherein the second segmented PID target position information among the multiple segmented PID target position information indicates the engagement position.
[0017] According to a preferred embodiment of the actuator for a claw clutch of the present invention, the engagement position starts from the tooth-to-tooth termination position via a preliminary engagement position to a fully engaged position, wherein the second segmented PID target position information indicates the relative position after the preliminary engagement position.
[0018] According to a preferred embodiment of the actuator for a claw clutch of the present invention, the second segmented PID target position information indicates a relative position that meets the following conditions, at which the force exerted on the shifting member by the compression of the pressurized elastic member can ensure the engagement of the corresponding claw with a sufficiently high success rate.
[0019] According to a preferred embodiment of the actuator for a dog clutch of the present invention, the actuator comprises a cam angle sensor configured to acquire an actual angle position of the cam and send it to the PID controller, and
[0020] The plurality of segmented PID target position information includes cam angle position information corresponding to relative positions.
[0021] According to a preferred embodiment of the actuator for the dog clutch of the present invention, the actuator further comprises a toggle position sensor, the toggle position sensor being configured to collect the actual position of the toggle and send it to the PID controller, and
[0022] The PID controller is configured to switch to the next segmented PID control and / or confirm the completion of the gear shifting based on the actual position of the toggle member.
[0023] In addition, the present invention also provides a car,
[0024] The automobile comprises:
[0025] A claw clutch, wherein the claw clutch comprises a first clutch plate and a second clutch plate with matching claws, the first clutch plate and the second clutch plate being able to be actuated by the actuator to move closer to each other for engagement and move away from each other for disengagement; and
[0026] An actuator according to the preceding content for actuating the dog clutch.
[0027] Finally, the present invention also provides a method for using an actuator of a dog clutch according to the above content, wherein the dog clutch comprises a first clutch plate and a second clutch plate with matching dogs, and the first clutch plate and the second clutch plate can be actuated by the actuator to move closer to each other for engagement and move away from each other for disengagement,
[0028] The method comprises the following steps:
[0029] The first segmented PID target position information indicating the first clutch disk relative to the second clutch disk is set for the PID controller, and the first segmented PID control is performed based on this target.
[0030] Alternatively, the above method may include the following steps:
[0031] Setting the first segmented PID target position information indicating the first clutch disk relative to the second clutch disk to the PID controller, and performing the first segmented PID control based on this target; and
[0032] The second segmented PID target position information indicating the first clutch disk relative to the second clutch disk is set for the PID controller, and the second segmented PID control is performed based on this target. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] This document includes the accompanying drawings to provide a further understanding of the various embodiments, and the accompanying drawings are incorporated in and constitute a part of this specification.
[0034] The drawings illustrate the various embodiments described herein, and together with the description serve to explain the principles and operations of the claimed subject matter.
[0035] With reference to the above objects, the technical features of the present invention are clearly described hereinafter, and advantages thereof are apparent from the following detailed description with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention by way of example without limiting the scope of the present invention.
[0036] In the attached figure:
[0037] Figure 1 Detailed description of the invention is given in conjunction with a schematic block diagram of an actuator for a dog clutch according to the present invention. DETAILED DESCRIPTION
[0038] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below.
[0039] While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those illustrated embodiments.
[0040] On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention.
[0041] To facilitate explanation and accurately define the technical solutions of the present invention, the terms “upper”, “lower”, “inner” and “outer” are used to describe features of the exemplary embodiments shown in the drawings with reference to their positions.
[0042] refer to Figure 1 , shows a schematic principle block diagram of an actuator for a claw clutch according to the present invention.
[0043] The actuator and the corresponding method of use according to the present invention are designed for a claw clutch. In order to better describe the actuator of the present invention, the structure of the claw clutch is first described. However, it should be pointed out that those skilled in the art can also apply the actuator and the corresponding method of use of the present invention to the actuation of other clutches whose meshing relationship is close or similar to that of the claw clutch according to actual needs.
[0044] Typically, a dog clutch includes a first clutch plate and a second clutch plate with mating dogs.
[0045] It can be understood that in order to make the two clutch plates mesh with each other through the claws, generally, the claws can be set on the sides of the first clutch plate and the second clutch plate of the paired clutch that face each other, so that each claw can be staggered and nested, and can be actuated by the actuator to move closer to each other for meshing and move away from each other for disconnection. Preferably, the claws can be rectangular teeth or battlement-shaped teeth in the circumferential direction. It should be pointed out that the above description is not intended to limit the specific shape of the claws. In order to adapt to the actuator and method of the present invention, as long as the claws on the two clutch plates can be staggered and nested with each other through their own structural teeth.
[0046] The actuator generally includes: a toggle member, a power source and a PID controller. Of course, the actuator may also include other suitable accessories, which can be selected by those skilled in the art according to actual needs, and will not be described in detail here. The following specifically describes the actuator components listed above.
[0047] The toggle member is generally configured to drive the first clutch plate to move relative to the second clutch plate. For example, the toggle member may include a fork portion configured to cooperate with a groove portion on the clutch plate, so that the fork portion can drive the movement of the clutch plate by cooperating with the groove portion.
[0048] The power source is generally configured to output power to drive the toggle member to move, and further drive the first clutch plate from the neutral position to the engaged position via the tooth-to-tooth position during the process of actuating the toggle member to engage the first clutch plate and the second clutch plate.
[0049] In a preferred embodiment, the actuator may further include a cam, the cam is provided with an inner cavity, a slider is provided in the inner cavity, and a pressure-bearing elastic member is provided between the slider and the wall of the inner cavity. In such a preferred embodiment, the power source can drive the cam to rotate, and the toggle member moves following the rotation of the cam, and the pressure-bearing elastic member such as a pressure-bearing spring is configured to release elastic force to push the toggle member after the tooth-to-tooth position is reached, thereby causing the corresponding tooth claws to engage.
[0050] The tooth-to-tooth position starts from a safety margin beyond the neutral position, passes through a tooth-to-tooth starting position, and ends at a tooth-to-tooth ending position. The meshing position starts from a tooth-to-tooth ending position, passes through a preliminary meshing position, and ends at a fully meshing position.
[0051] Those skilled in the art will understand that the neutral position refers to the position where the claws have not yet started to mesh, and the meshing position refers to the position where the claws are fully meshed. Following the meshing process of the claws, the two claws pass through the above positions in sequence to complete the meshing action. However, each position is not only determined by the shape and structure of the claws themselves, but can also be set according to the actual needs of the technicians according to the control targets such as noise, wear, impact, etc.
[0052] The PID controller is generally configured to perform segmented PID control on the output of the power source by setting multiple segmented PID target position information indicating multiple sets of different relative positions of the first clutch plate relative to the second clutch plate and collecting the actual positions of related moving parts.
[0053] The first segmented PID target position information among the plurality of segmented PID target position information indicates the tooth-to-tooth position. Preferably, the first segmented PID target position information may indicate the relative position of the first clutch disc relative to the second clutch disc after the tooth-to-tooth starting position.
[0054] The second segmented PID target position information among the plurality of segmented PID target position information indicates the meshing position. Preferably, the second segmented PID target position information may indicate the relative position of the first clutch disc relative to the second clutch disc after the initial meshing position.
[0055] In the case of the above-mentioned compressed elastic member, the second segmented PID target position information may indicate a relative position that meets the following conditions, at which the force on the toggle member generated by the compression of the compressed elastic member can ensure the corresponding claw engagement with a sufficiently high success rate. The above success rate may be personalized according to the control effect expected by the technician, for example.
[0056] In the preferred embodiment including the cam, the actuator may include a cam angle sensor, for example. The cam angle sensor is configured to collect the actual angle position of the cam and send it to the PID controller, and one or more of the plurality of segmented PID target position information may include the cam angle position information corresponding to the relative position.
[0057] In addition, the actuator may also include a toggle position sensor, which is configured to collect the actual position of the toggle and send it to the PID controller, and the PID controller is configured to switch to the next segmented PID control and / or confirm the completion of the gear shifting based on the actual position of the toggle.
[0058] Furthermore, the present invention also relates to a vehicle comprising a claw clutch and the above-mentioned actuator.
[0059] The claw clutch includes a first clutch plate and a second clutch plate with matching claws, and the first clutch plate and the second clutch plate can be actuated by an actuator to move closer to each other for engagement and move away from each other for disconnection.
[0060] The actuator is used to actuate the dog clutch.
[0061] Finally, a method of using the above-mentioned actuator for a dog clutch according to the present invention is briefly described. Specifically and preferably, the dog clutch includes a first clutch plate and a second clutch plate with matching claws, and the first clutch plate and the second clutch plate can be actuated by the actuator to move closer to each other for engagement and move away from each other for disconnection.
[0062] The above method comprises at least the following steps:
[0063] The PID controller is set with first segmented PID target position information indicating the first clutch disk relative to the second clutch disk, and the first segmented PID control is performed based on this target.
[0064] In a preferred embodiment of the above method, at least the following steps may be included:
[0065] Setting first segmented PID target position information indicating the first clutch disk relative to the second clutch disk to the PID controller, and performing first segmented PID control based on this target; and
[0066] The PID controller is set with second segmented PID target position information indicating the first clutch disk relative to the second clutch disk, and the second segmented PID control is performed based on this target.
[0067] In other words, in this preferred embodiment, in addition to performing the first segmented PID control, the second segmented PID control is additionally performed.
[0068] Preferred embodiments of the present invention have been described above in detail, but it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide further embodiments.
[0069] These and other changes can be made to the embodiments described herein in light of the above detailed description.
[0070] In general, in the claims, the terms used should not be considered limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which these claims are entitled.
Claims
1. An actuator for a claw clutch, wherein: The claw clutch includes a first clutch plate and a second clutch plate with paired claws, and the first clutch plate and the second clutch plate can be actuated by the actuator to move closer to each other for engagement and move away from each other for disengagement. It is characterized in that The actuator comprises: a toggle member, the toggle member being configured to drive the first clutch plate to move relative to the second clutch plate; a power source configured to output power to drive the toggle member to move, and thereby drive the first clutch plate from a neutral position to an engaged position via a tooth-to-tooth position during a process of actuating the toggle member to engage the first clutch plate and the second clutch plate, A PID controller, wherein the PID controller is configured to perform segmented PID control on the output of the power source by setting multiple segmented PID target position information indicating multiple groups of different relative positions of the first clutch plate relative to the second clutch plate and collecting the actual positions of related moving parts, wherein the first segmented PID target position information among the multiple segmented PID target position information indicates the tooth-to-tooth position.
2. The actuator for a dog clutch according to claim 1, It is characterized in that The tooth-to-tooth position starts from a safety margin beyond the neutral position via a tooth-to-tooth starting position and ends at a tooth-to-tooth ending position, The first segmented PID target position information indicates the relative position after the tooth-to-tooth starting position.
3. The actuator for a dog clutch according to claim 1, It is characterized in that The cam further comprises a cam having an inner cavity, a slider being arranged in the inner cavity, and a pressure-bearing elastic member being arranged between the slider and the wall of the inner cavity. The power source drives the cam to rotate, and the toggle member moves following the rotation of the cam. The compressed elastic member is configured to release elastic force to push the toggle member after the tooth-to-tooth position is reached to cause the corresponding claws to engage. Among them, the second segmented PID target position information among the multiple segmented PID target position information indicates the meshing position.
4. The actuator for a dog clutch according to claim 3, It is characterized in that The meshing position starts from the tooth-to-tooth termination position, passes through the preliminary meshing position and ends at the full meshing position. The second segmented PID target position information indicates the relative position after the initial meshing position.
5. The actuator for a dog clutch according to claim 3, It is characterized in that The second segmented PID target position information indicates a relative position that meets the following conditions, at which relative position, the force exerted on the toggle member by the compression of the pressure-bearing elastic member can ensure the engagement of the corresponding claws with a sufficiently high success rate.
6. The actuator for a dog clutch according to claim 3, It is characterized in that The actuator includes a cam angle sensor configured to acquire an actual angular position of the cam and send it to the PID controller, and The plurality of segmented PID target position information includes cam angle position information corresponding to relative positions.
7. The actuator for a dog clutch according to claim 6, It is characterized in that The actuator further includes a toggle position sensor configured to acquire an actual position of the toggle and send it to the PID controller, and The PID controller is configured to switch to the next segmented PID control and / or confirm the completion of the gear shifting based on the actual position of the toggle member.
8. Cars, It is characterized in that The automobile comprises: A claw clutch, wherein the claw clutch comprises a first clutch plate and a second clutch plate with matching claws, the first clutch plate and the second clutch plate being able to be actuated by the actuator to move closer to each other for engagement and move away from each other for disengagement; and An actuator according to any one of claims 1 to 7 for actuating the dog clutch.
9. A method for using the actuator for a dog clutch according to any one of claims 1 to 7, wherein: The claw clutch includes a first clutch plate and a second clutch plate with paired claws, and the first clutch plate and the second clutch plate can be actuated by the actuator to move closer to each other for engagement and move away from each other for disengagement. It is characterized in that The following steps are involved: The first segmented PID target position information indicating the first clutch disk relative to the second clutch disk is set for the PID controller, and the first segmented PID control is performed based on this target.
10. A method for using the actuator for a dog clutch according to any one of claims 3 to 7, wherein: The claw clutch includes a first clutch plate and a second clutch plate with paired claws, and the first clutch plate and the second clutch plate can be actuated by the actuator to move closer to each other for engagement and move away from each other for disengagement. It is characterized in that The following steps are involved: The PID controller is set with the first segmented PID target position information indicating the first clutch disk relative to the second clutch disk, and the first segmented PID control is performed based on the target; as well as The second segmented PID target position information indicating the first clutch disk relative to the second clutch disk is set for the PID controller, and the second segmented PID control is performed based on this target.