Controllable bidirectional overrunning clutch and transmission

Abstract

This invention provides a controllable bidirectional overrunning clutch and transmission, comprising a star wheel and an engagement control assembly. The engagement control assembly includes an engagement control member, a shift ring, an engagement control disc A, and an engagement control disc B. The shift ring is disposed on both sides of the clutch and is connected by the engagement control member. Both engagement control discs A and B are provided with engagement control grooves B and elongated holes. Engagement control discs A and B are connected by a connecting rod B. Rollers are installed on the corresponding elongated holes on engagement control discs A and B. The engagement control member passes through the engagement control groove B. By shifting the shift ring, the engagement control member can be driven to control the clockwise or counterclockwise rotation of engagement control discs A and B, thereby achieving engagement or disengagement of the clutch in the clockwise or counterclockwise direction. This invention features a simple structure, rapid gear shifting, no jerking, and low cost, making it particularly suitable for new energy vehicles.

Description

Technical Field

[0001] This invention belongs to the field of overrunning clutch and transmission design, specifically relating to a controllable bidirectional overrunning clutch and transmission. Background Technology

[0002] Currently, there are a large number of electric bicycles and new energy vehicles on the market. They all have the advantages of high efficiency and energy saving, lightweight and compact design, and good dynamic response. However, most electric bicycles and new energy vehicles currently use a fixed gear transmission design. Fixed gear transmissions can only make trade-offs between climbing ability and high-speed driving. If climbing ability is emphasized, the motor needs to run at high speed when driving at high speed, which has the disadvantages of low motor efficiency and high heat generation. On the other hand, if high-speed driving is emphasized, climbing ability will be insufficient. Therefore, it is essential to use two-speed transmissions in electric bicycles and new energy vehicles. Currently, many manufacturers have designed two-speed transmissions for new energy vehicles. The mainstream two-speed transmission designs include: synchronizer transmissions, single-clutch transmissions, dual-clutch transmissions, and planetary gear transmissions. Synchronizer transmissions have a simple structure and mature technology, but they have the disadvantage of long shifting time and power interruption affecting comfort. Single-clutch transmissions have smooth shifting and good comfort, but they are large in size, heavy in weight, and expensive. Dual-clutch transmissions are relatively easy to manufacture and develop, but they have the disadvantages of poor heat dissipation, high failure rate, and high price. Planetary gear transmissions have the advantages of compact structure, strong impact resistance, large transmission ratio, and high efficiency, but they also have the disadvantages of complex structure, difficult manufacturing and installation, and high price. Summary of the Invention

[0003] The purpose of this invention is to provide a controllable bidirectional overrunning clutch and transmission, which aims to overcome the shortcomings of existing two-speed transmission technology. This invention features simple structure, rapid shifting, no jerking, and low cost, making it particularly suitable for new energy vehicles.

[0004] To achieve the above objectives, the present invention provides a controllable bidirectional overrunning clutch, comprising a star wheel and an engagement control assembly. The star wheel is uniformly provided with multiple bidirectional wedge-shaped grooves, engagement control grooves A, and crescent-shaped holes. The center of the large circle of each crescent-shaped hole is concentric with the center of the star wheel. The engagement control assembly includes an engagement control component, a shift ring, an engagement control disc A, and an engagement control disc B. The engagement control component consists of a main body, a clockwise engagement paddle, a disengagement paddle, a counterclockwise engagement paddle, and a connecting rod A. The main body, the clockwise engagement paddle, the disengagement paddle, the counterclockwise engagement paddle, and the connecting rod A are all located on the same cylinder. The main body, the release lever, and the connecting rod A are all parallel to the central axis of the cylinder. The clockwise engaging lever forms an angle with the central axis of the cylinder and is helical; the counter-clockwise engaging lever also forms an angle with the central axis of the cylinder and is helical. Connecting rod A is distributed at both ends of the engagement control component. The main body of the engagement control component is installed in the engagement control groove A with a clearance fit. The derailleur ring is a cylindrical structure with multiple connecting holes A. A controllable bidirectional overrunning clutch has two derailleur rings, which are fixedly connected to the connecting rods A at both ends of the engagement control component through the connecting holes A. The engagement control component... Driven by the ring, it can reciprocate along the axial direction of the star wheel. The engagement control disk A is a cylindrical structure with multiple evenly distributed connecting holes B, engagement control grooves B, and oblong holes. The centers of the two circles in the oblong holes are on the same radius of the engagement control disk A. The engagement control disk B is also a cylindrical structure with multiple evenly distributed connecting holes B and oblong holes. The centers of the two circles in the oblong holes are on the same radius of the engagement control disk B. The engagement control disks A and B are fixedly connected to both ends of the connecting rod B through the connecting holes B. The connecting rod B is installed in the crescent hole of the star wheel. The inner part is a clearance fit. The number of elongated holes on the engagement control plate A and the engagement control plate B are equal and the positions are the same. Rollers are installed in the two corresponding elongated holes on engagement control plate A and engagement control plate B. The rollers can reciprocate in the elongated holes along the radius of the star wheel. The clockwise engagement paddle, separation paddle, and counterclockwise engagement paddle on each engagement control component can pass through the corresponding engagement control groove B on engagement control plate A in sequence. Under the action of the engagement control components, engagement control plate A and engagement control plate B can swing clockwise or counterclockwise around their central axis.

[0005] Optionally, the star wheel is evenly provided with multiple spring holes, a spring is provided in the middle of the spring hole, and positioning pins are provided at both ends of the spring. The top of the positioning pin is conical and rounded. Multiple sets of conical positioning blind holes are provided on the same circle inside the engagement control disk A and engagement control disk B. The conical positioning blind holes are grouped into groups of three. The circle where the conical positioning blind hole is located is the same size as the circle where the spring hole is located. Each group of conical positioning blind holes has a corresponding spring hole.

[0006] Optionally, the engagement control component is divided into a clockwise engagement control component and a counterclockwise engagement control component. The clockwise engagement control component consists of a main body, a clockwise engagement paddle, a separation paddle, and a connecting rod A. The counterclockwise engagement control component consists of a main body, a counterclockwise engagement paddle, a separation paddle, and a connecting rod A. The paddle ring is divided into a clockwise paddle ring and a counterclockwise paddle ring, each with multiple connecting holes A. The engagement control disk A is divided into a clockwise engagement control disk A and a counterclockwise engagement control disk A, each with multiple connecting holes B, engagement control grooves B, and elongated holes. The engagement control disk B is divided into a clockwise engagement control disk B and a counterclockwise engagement control disk B, each with multiple connecting holes B and elongated holes.

[0007] Optionally, the star wheel is evenly provided with multiple spring holes, a spring is provided in the middle of the spring hole, and positioning pins are provided at both ends of the spring. The top of the positioning pin is conical and rounded. Multiple sets of conical positioning blind holes are provided on the same circle inside the clockwise control disk A and the clockwise control disk B. The conical positioning blind holes are grouped in pairs. The circle containing the conical positioning blind hole is the same size as the circle containing the spring hole. Each group of conical positioning blind holes has a corresponding spring hole. Multiple sets of conical positioning blind holes are provided on the same circle inside the counterclockwise control disk A and the counterclockwise control disk B. The conical positioning blind holes are grouped in pairs. The circle containing the conical positioning blind hole is the same size as the circle containing the spring hole. Each group of conical positioning blind holes has a corresponding spring hole.

[0008] The present invention also provides a transmission comprising any of the controllable bidirectional overrunning clutches described above.

[0009] The present invention provides a controllable bidirectional overrunning clutch-based transmission, which features simple structure, rapid shifting, no jerking, and low cost, making it particularly suitable for new energy vehicles.

[0010] In the description of this invention, it should be noted that the terms "inner side," "outer side," "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only used for the convenience of describing this invention and simplifying the description. This does not mean that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. In this invention, the multiple holes or slots provided on the star wheel, shift ring, engagement control disc A, and engagement control disc B, unless otherwise specified, are all distributed on a circle concentric with the part. For example, the engagement control slot A on the star wheel is distributed on a circle concentric with the star wheel. In overrunning clutches, the star wheel is defined as a part with a groove (i.e., a wedge groove) to accommodate a wedge-shaped part. Therefore, according to the different positions of the star wheel, it is divided into inner star wheel and outer star wheel. They are no different except for the different positions of the star wheel. Similarly, in overrunning clutches, according to the different shapes of the wedge-shaped parts, they are divided into roller type and wedge block type. Because the roller type inner star wheel overrunning clutch is easy to process and ensures accuracy, it is widely used. Therefore, this invention only describes the roller type inner star wheel overrunning clutch, but it does not mean that this invention is only suitable for roller type inner star wheel overrunning clutches. It is also suitable for other types of overrunning clutches. Attached Figure Description

[0012] Figure 1 These are the front and side views of the star wheel in Example 1.

[0013] Figure 2 These are the front view, top view, and side view of the joining control component in Embodiment 1.

[0014] Figure 3 The figures shown are the front view, top view, and side view of the joint control component after the cylinder has been flattened in Embodiment 1.

[0015] Figure 4 These are the front and side views of the dial ring in Example 1.

[0016] Figure 5 These are the front and side views of the joint control panel A in Example 1.

[0017] Figure 6 These are the front and side views of the joint control panel B in Example 1.

[0018] Figure 7 These are the front and side views of the positioning pin in Example 1.

[0019] Figure 8 These are the front view, top view, and side view of the controllable bidirectional overrunning clutch in Example 1.

[0020] Figure 9 for Figure 8 A magnified view of a portion of the image.

[0021] Figure 10 This is the working state 1 of the spring hole, positioning pin, and conical positioning blind hole in Example 1.

[0022] Figure 11 This is the working state 2 of the spring hole, positioning pin, and conical positioning blind hole in Example 1.

[0023] Figure 12 This is the working state 3 of the spring hole, positioning pin, and conical positioning blind hole in Example 1.

[0024] Figure 13 This is the front view of the star wheel in Example 2.

[0025] Figure 14 This is a front view of the clockwise engagement control component and the counterclockwise engagement control component in Embodiment 2.

[0026] Figure 15 This is a front view of the clockwise and counterclockwise dials in Example 2.

[0027] Figure 16 This is a front view of the clockwise engagement control panel A and the counterclockwise engagement control panel A in Example 2.

[0028] Figure 17 This is a front view of the clockwise and counterclockwise engagement control panel B in Example 2.

[0029] Figure 18 This is a schematic diagram of the two-speed transmission structure in Example 3.

[0030] 1-Star wheel; 11-Two-way wedge groove; 111-Clockwise engagement position; 112-Middle position; 113-Counterclockwise engagement position; 12-Engine control groove A; 13-Crescent hole; 14-Spring hole; 141-Spring; 142-Positioning pin; 2-Engine control component; 21-Clockwise engagement control component; 22-Counterclockwise engagement control component; 201-Main body; 202-Clockwise engagement lever; 203-Separation lever; 204-Counterclockwise engagement lever; 205-Connecting rod A; 3-Ring; 31-Clockwise ring; 32-Counterclockwise ring; 311-Connecting hole A; 4-Engine control disc A; 41-Clockwise engagement control disc A; 42-Counterclockwise engagement control disc A; 401-Connecting hole B; 4 02- Engagement control groove B; 403-Oblong hole; 404-Conical positioning blind hole; 4041-Clockwise positioning blind hole; 4042-Separation positioning blind hole; 4043-Counterclockwise positioning blind hole; 5- Engagement control disc B; 51-Clockwise engagement control disc B; 52-Counterclockwise engagement control disc B; 6-Outer ring; 7-Roller; 8-Nut; 9-Connecting rod B; 101-Shift fork; 102-Electromagnetic controller; 103-Input shaft; 104-Double gear; 105-Planetary gear set A; 106-Planetary gear set B; 107-Planetary support. Detailed Implementation Example 1

[0031] like Figures 1 to 9 As shown, Embodiment 1 provides a controllable bidirectional overrunning clutch, including a star wheel 1 and an engagement control assembly. The star wheel 1 is evenly provided with: four bidirectional wedge-shaped grooves 11, two engagement control grooves A12, two crescent-shaped holes 13, and two spring holes 14. The center of the large circle of the crescent-shaped hole 13 is concentric with the center of the star wheel 1. A spring 141 is disposed in the middle of the spring hole 14, and positioning pins 142 are disposed at both ends of the spring 141. The top of the positioning pins 142 is conical and rounded. The engagement control assembly includes: an engagement control component 2, a shift ring 3, an engagement control disc A4, and an engagement control disc B5. The engagement control component 2 consists of a main body 201, a clockwise engagement shifter 202, and a disengagement shifter 203. The system comprises a counter-clockwise engaging paddle 204 and a connecting rod A205. The main body 201, clockwise engaging paddle 202, disengaging paddle 203, counter-clockwise engaging paddle 204, and connecting rod A205 are all distributed on a cylinder. The outer and inner radii of this cylinder are equal to the distances from the top and bottom of the engagement control groove A12 to the central axis of the star wheel 1, respectively. The main body 201, disengaging paddle 203, and connecting rod A205 are all parallel to the central axis of the cylinder. The clockwise engaging paddle 202 forms an angle with the central axis of the cylinder and is helical, as does the counter-clockwise engaging paddle 204. The connecting rod A205 is located at both ends of the engagement control component 2. Figure 3The front view, top view, and side view of the engagement control component 2 after the cylinder is flattened are shown. The main body 201 of the engagement control component 2 is installed in the engagement control groove A12 with a clearance fit. The deflector ring 3 is a cylindrical structure with two connecting holes A311. A controllable bidirectional overrunning clutch is equipped with two deflector rings 3. The two deflector rings 3 are fixedly connected to the connecting rods A205 at both ends of the engagement control component 2 through the connecting holes A311 and nuts 8. The engagement control component 2 can reciprocate in the axial direction of the star wheel under the drive of the deflector rings 3. The engagement control disk A4 is a cylindrical structure with... The control disk A4 is uniformly provided with: 2 connecting holes B401, 2 engagement control grooves B402, 4 oblong holes 403, and 2 sets of conical positioning blind holes 404. The centers of the two circles on the oblong holes 403 are both on the same radius of the engagement control disk A4. Three conical positioning blind holes 404 form a group, and the circle containing the conical positioning blind hole is the same size as the circle containing the spring hole. Each group of conical positioning blind holes 404 has a corresponding spring hole 14. The engagement control disk B5 is a cylindrical structure, on which the following are uniformly provided: 2 connecting holes B401, 4 oblong holes 403, and 2 sets of conical positioning blind holes 404. The oblong hole 404 has two circles whose centers are on the same radius of the engagement control disk B. Three oblong holes 404 form a group, and the circle containing the oblong hole and the circle containing the spring hole are of equal size. Each group of oblong holes 404 has a corresponding spring hole 14. The engagement control disk A4 and engagement control disk B5 are fixedly connected by nuts 8 through connecting holes B401 and both ends of connecting rod B9. Connecting rod B9 is installed in the crescent hole 13 of the star wheel 1 with a clearance fit. The oblong hole 403 on engagement control disk A4 and the oblong hole 403 on engagement control disk B5... The number of elongated holes 403 are equal and their positions are the same. Rollers 7 are installed in the two corresponding elongated holes 403 on the engagement control disk A4 and engagement control disk B5. The rollers 7 can reciprocate in the radial direction of the star wheel 1 within the elongated holes 403. The clockwise engagement paddle 202, the separation paddle 203, and the counterclockwise engagement paddle 204 on each engagement control component 2 can pass through the corresponding engagement control groove B402 on the engagement control disk A4 in sequence. Under the action of the engagement control component 2, the engagement control disk A4 and engagement control disk B5 can swing clockwise or counterclockwise around their central axis.

[0032] like Figure 1 and Figure 9As shown in the side view, the disengagement paddle 203 of the engagement control component 2 is located within the engagement control groove B402 of the engagement control disk A4. At this time, the roller 7 is located at the middle position 112 of the bidirectional wedge groove 11, and the controllable bidirectional overrunning clutch is in the disengaged state. When the controllable bidirectional overrunning clutch is in the disengaged state, the swivel ring 3 moves to the right, and the engagement control component 2 moves to the right along with it. The clockwise engagement paddle 202 on the engagement control component 2 applies a force to the engagement control groove B402 on the engagement control disk A4, causing the engagement control disk A4 to rotate clockwise (here, the upward movement of the engagement control disk A4 is defined as clockwise rotation, and the reverse is counterclockwise rotation). The elongated hole 403 pushes the roller 7 to... When the speed difference between the star wheel 1 and the outer ring 6 meets the condition, the controllable bidirectional overrunning clutch can engage in the clockwise direction at the clockwise engagement position 111 of the bidirectional wedge groove 11. When the controllable bidirectional overrunning clutch is in the disengaged state, the shift ring 3 moves to the left and the engagement control member 2 moves to the left along with it. The counterclockwise engagement paddle 204 on the engagement control member 2 applies a force to the engagement control groove B402 on the engagement control disk A4, causing the engagement control disk A4 to rotate counterclockwise. The elongated hole 403 pushes the roller 7 to the counterclockwise engagement position 113 of the bidirectional wedge groove 11. When the speed difference between the star wheel 1 and the outer ring 6 meets the condition, the controllable bidirectional overrunning clutch can engage in the counterclockwise direction.

[0033] like Figures 10-12 As shown in the figure, for ease of description, the conical positioning blind hole 404 is subdivided into: clockwise positioning blind hole 4041, separation positioning blind hole 4042, and counterclockwise positioning blind hole 4043. The three conical positioning blind holes 404, originally on an arc, are expanded to a straight line. The center distance between the clockwise positioning blind hole 4041 and the separation positioning blind hole 4042 is set as L1, and the center distance between the counterclockwise positioning blind hole 4043 and the separation positioning blind hole 4042 is set as L2. The actual distance the roller 7 moves when the controllable bidirectional overrunning clutch completes the transition from separation to clockwise (or counterclockwise) engagement is L3, and we have: L1 = L2, L1 > L3; Figure 10 As shown, when the positioning pin 142 abuts against the bottom of the separation positioning blind hole 4042, the resultant force of the positioning pin 142 on the separation positioning blind hole 4042 is zero, keeping the position of the engagement control plate A4 unchanged, and the controllable bidirectional overrunning clutch is in the disengaged state; Figure 11As shown, when the positioning pin 142 is in the clockwise positioning blind hole 4041, since L1>L3, the positioning pin 142 cannot reach the bottom of the clockwise positioning blind hole 4041. Therefore, the force exerted by the positioning pin 142 on the clockwise positioning blind hole 4041 is not zero. The positioning pin 142 continuously applies a clockwise force to the engagement control plate A4. Under the action of the elongated hole 403 on the engagement control plate A4 and engagement control plate B5, the roller 7 continuously applies a force to the bidirectional wedge groove 11 and the outer ring 6. The controllable bidirectional overrunning clutch is in a clockwise pre-engagement state. Figure 12 As shown, when the positioning pin 142 is in the counterclockwise positioning blind hole 4043, since L2>L3, the positioning pin 142 cannot reach the bottom of the counterclockwise positioning blind hole 4043. The force exerted by the positioning pin 142 on the counterclockwise positioning blind hole 4043 is not zero. The positioning pin 142 continuously applies a counterclockwise force to the engagement control plate A4. Under the action of the elongated hole 403 on the engagement control plate A4 and the engagement control plate B5, the roller 7 continuously applies a force to the bidirectional wedge groove 11 and the outer ring 6. The controllable bidirectional overrunning clutch is in the counterclockwise pre-engagement state.

[0034] In this embodiment, only a small number of bidirectional wedge grooves 11 are provided for ease of viewing. Example 2

[0035] The main difference between Embodiment 2 and Embodiment 1 is that the engagement control component 2 in Embodiment 1 is divided into two parts, that is, its functions are respectively placed on the clockwise engagement control component 21 and the counterclockwise engagement control component 22 (e.g., Figure 14 The number of bidirectional wedge grooves 11, engagement control grooves A12, crescent holes 13, and spring holes 14 on the corresponding star wheel 1 are all doubled (e.g. Figure 13 A controllable bidirectional overrunning clutch requires: two clockwise engagement rings 31 and two counterclockwise engagement rings 32 (e.g. Figure 15 ), a clockwise engagement control panel A41 and a counterclockwise engagement control panel A42 (as shown) Figure 16 ), a clockwise engagement control panel B51 and a counterclockwise engagement control panel B52 (as shown) Figure 17 Meanwhile, two rollers 7 are provided in a two-way wedge groove 11.

[0036] In Example 1, the controllable bidirectional overrunning clutch needs to switch from the clockwise engagement state to the counterclockwise engagement state to first switch to the disengagement state and then to the counterclockwise engagement state. The transition from the clockwise engagement state to the counterclockwise engagement state cannot truly achieve a seamless connection. However, in Example 2, the clutch can directly switch from the clockwise engagement state to the counterclockwise engagement state, achieving a seamless connection. Example 3

[0037] like Figure 18 The diagram shows the structural principle of a two-speed transmission, in which two electromagnetic controllers 102 control a controllable bidirectional overrunning clutch for each gear, so as to realize the power output switching between the two gears.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is merely a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A controllable bidirectional overrunning clutch, characterized in that... The system includes a star wheel and an engagement control assembly. The star wheel has multiple evenly distributed bidirectional wedge-shaped grooves, engagement control groove A, and crescent-shaped holes. The center of the large circle of each crescent-shaped hole is concentric with the center of the star wheel. The engagement control assembly includes an engagement control member, a ring, engagement control disc A, and engagement control disc B. The engagement control member consists of a main body, a clockwise engagement paddle, a disengagement paddle, a counter-clockwise engagement paddle, and a connecting rod A. The main body, clockwise engagement paddle, disengagement paddle, counter-clockwise engagement paddle, and connecting rod A are all located on the same cylinder and are parallel to... The cylinder's central axis has a clockwise engagement lever that forms an angle with the cylinder's central axis and is spiral-shaped; a counterclockwise engagement lever also forms an angle with the cylinder's central axis and is spiral-shaped. Connecting rods A are distributed at both ends of the engagement control component. The main body of the engagement control component is installed within the engagement control groove A with a clearance fit. The derailleur ring is a cylindrical structure with multiple connecting holes A. A controllable bidirectional overrunning clutch has two derailleur rings, which are fixedly connected to the connecting rods A at both ends of the engagement control component through the connecting holes A. The engagement control component, driven by the derailleur rings, can move along the axis of the star wheel. The system reciprocates upwards. The engagement control disk A is a cylindrical structure with multiple evenly distributed connecting holes B, engagement control grooves B, and oblong holes. The centers of the two circles in the oblong holes are both on the same radius of the engagement control disk A. The engagement control disk B is also a cylindrical structure with multiple evenly distributed connecting holes B and oblong holes. The centers of the two circles in the oblong holes are both on the same radius of the engagement control disk B. The engagement control disks A and B are fixedly connected to both ends of the connecting rod B through the connecting holes B. The connecting rod B is installed in the crescent-shaped hole of the star wheel with a gap. In this configuration, the number and position of the elongated holes on engagement control plate A and engagement control plate B are equal. Rollers are installed in the corresponding elongated holes on engagement control plate A and engagement control plate B. The rollers can reciprocate along the radius of the star wheel within the elongated holes. The clockwise engagement paddle, disengagement paddle, and counterclockwise engagement paddle on each engagement control component can pass through the corresponding engagement control groove B on engagement control plate A in sequence. Under the action of the engagement control components, engagement control plates A and B can swing clockwise or counterclockwise around their central axis.

2. The controllable bidirectional overrunning clutch according to claim 1, characterized in that, The star wheel is evenly provided with multiple spring holes, and a spring is provided in the middle of each spring hole. Positioning pins are provided at both ends of each spring. The top of each positioning pin is conical and rounded. Multiple sets of conical positioning blind holes are provided on the same circle inside the engagement control disk A and engagement control disk B. The conical positioning blind holes are grouped into groups of three. The circle containing the conical positioning blind holes is the same size as the circle containing the spring holes. Each group of conical positioning blind holes has a corresponding spring hole.

3. A controllable bidirectional overrunning clutch according to claim 1, characterized in that, The engagement control components are divided into clockwise engagement control components and counterclockwise engagement control components. The clockwise engagement control component consists of a main body, a clockwise engagement lever, a separation lever, and a connecting rod A. The counterclockwise engagement control component consists of a main body, a counterclockwise engagement lever, a separation lever, and a connecting rod A. The dial ring is divided into a clockwise dial ring and a counterclockwise dial ring, each with multiple connecting holes A. The engagement control disk A is divided into a clockwise engagement control disk A and a counterclockwise engagement control disk A, each with multiple connecting holes B, engagement control grooves B, and oblong holes. The engagement control disk B is divided into a clockwise engagement control disk B and a counterclockwise engagement control disk B, each with multiple connecting holes B and oblong holes.

4. A controllable bidirectional overrunning clutch according to claim 3, characterized in that, The star wheel is evenly provided with multiple spring holes, each with a spring in the middle and a positioning pin at both ends. The top of each positioning pin is conical with rounded corners. Multiple sets of conical positioning blind holes are provided on the same circle inside the clockwise control disk A and clockwise control disk B. Each set of two conical positioning blind holes forms a group, and the circle containing the conical positioning blind hole is the same size as the circle containing the spring hole. Each group of conical positioning blind holes has a corresponding spring hole. Similarly, multiple sets of conical positioning blind holes are provided on the same circle inside the counterclockwise control disk A and counterclockwise control disk B. Each set of two conical positioning blind holes forms a group, and the circle containing the conical positioning blind hole is the same size as the circle containing the spring hole. Each group of conical positioning blind holes has a corresponding spring hole.

5. A transmission, characterized in that, The controllable bidirectional overrunning clutch includes any one of claims 1, 2, 3, and 4.

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