Coordinate information confirmation method based on asymmetric gear shifting hub and asymmetric gear shifting hub

Abstract

The invention provides a coordinate information confirmation method based on an asymmetric gear shifting hub and the asymmetric gear shifting hub, the confirmation method is applied to a vehicle with the gear shifting hub, and a groove body in the gear shifting hub is asymmetrically arranged; the confirmation method comprises the following steps: acquiring coordinate information of each dead point and coordinate information of each stagnation point; analyzing the coordinate information of each dead point and the coordinate information of each stagnation point to confirm a plurality of preset stroke parameters respectively; controlling the gear shifting hub to operate for at least two times so as to determine at least two pieces of operation coordinate information, and confirming actual stroke parameters of the gear shifting hub according to the at least two pieces of operation coordinate information; and the coordinate information of the gear shifting hub is confirmed. By the adoption of the design of the asymmetric gear shifting hub, the position of the gear shifting hub can be confirmed without installing a sensor or calling a motor for assistance, the cost is low, noise is smaller in the gear shifting process, the pause feeling is weaker, high voltage does not need to be applied in the self-learning process, and potential safety hazards are avoided.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a coordinate information confirmation method based on an asymmetric shift hub and an asymmetric shift hub. Background Art

[0002] In the field of mechanical engineering, especially in the field of vehicle engineering and transmission, the design and optimization of the shift mechanism is an important research direction. The quality of the shift mechanism directly affects the driving experience of the vehicle and the efficiency of the transmission system. Among them, the dog clutch, as a commonly used shift mechanism, is widely used in various DHD vehicles due to its advantages such as easy control, long life and low cost.

[0003] However, during the gear shifting process of the dog clutch, especially when the vehicle is stationary, the position of the shift hub must be confirmed in advance before the gear engagement can be completed. In the prior art, one method is to determine the position of the shift hub by arranging a position sensor. However, this method is costly and the sensor arrangement is not easy. The second method is to continuously apply force in the gear direction during gear shifting until the gear shift is successful. Although this method does not require the installation of sensors, the noise (NVH) during gear shifting is poor and the sense of frustration during gear shifting is strong. The third method is to use the motor to assist in gear shifting. This method requires high voltage before self-learning, which poses certain safety hazards.

[0004] Therefore, existing solutions either require additional sensors, which are costly; or produce strong noise and jerkiness during gear shifting, resulting in a poor user experience; or require motor assistance, which poses certain safety risks. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a coordinate information confirmation method based on an asymmetric shift hub and an asymmetric shift hub, so as to solve the technical problems in the background technology of how to confirm the position of the shift hub when the vehicle is stationary, which are high cost, strong noise and frustration, and potential safety hazards.

[0006] A first aspect of the present invention is to provide a method for confirming coordinate information based on an asymmetric shift hub, the method being applied to a vehicle having a shift hub, wherein the groove in the shift hub is asymmetrically arranged so that the preset travel parameters between multiple stop points and multiple stuck points formed by the shift hub during operation are different;

[0007] The confirmation method comprises:

[0008] Obtaining coordinate information of each of the stop points and coordinate information of each of the stuck points;

[0009] Analyzing the coordinate information of each of the stop points and the coordinate information of each of the stuck points to respectively confirm a plurality of preset travel parameters between a plurality of the stop points, between a plurality of the stuck points, and between each of the stop points and each of the stuck points;

[0010] Controlling the shift hub to run at least twice, so that when the shift hub passes through the dead point or the stuck point in the two runs, at least two running coordinate information corresponding to the dead point or the stuck point are respectively formed, wherein the two runs are in opposite directions;

[0011] confirming the actual travel parameter of the shift hub according to at least two pieces of the running coordinate information;

[0012] The actual stroke parameter is compared with a plurality of the preset stroke parameters to confirm the coordinate information of the shift hub.

[0013] Further, in the step of respectively confirming multiple preset stroke parameters between multiple stop points, between multiple stuck points, and between each stop point and each stuck point, the multiple stop points include a first gear stop point and a second gear stop point, and the multiple stuck points include a first gear stuck point and a second gear stuck point.

[0014] Further, in the step of respectively confirming a plurality of preset travel parameters between a plurality of the dead points, between a plurality of the stuck points, and between each of the dead points and each of the stuck points, the data of the coordinate information in the first gear dead point is smaller than the data of the coordinate information in the first gear stuck point;

[0015] The data of the coordinate information in the first-gear stuck point is smaller than the data of the coordinate information in the second-gear stuck point;

[0016] The data of the coordinate information in the second gear stuck point is smaller than the data of the coordinate information in the second gear dead point.

[0017] Further, in the step of respectively confirming a plurality of preset travel parameters between a plurality of the dead points, between a plurality of the stuck points, and between each of the dead points and each of the stuck points, the step includes:

[0018] constructing a first preset travel parameter according to the coordinate information of the first gear stuck point and the coordinate information of the second gear stuck point;

[0019] Constructing a second preset stroke parameter according to the coordinate information of the first gear stuck point and the coordinate information of the second gear dead point;

[0020] Constructing a third preset stroke parameter according to the coordinate information of the first gear dead point and the coordinate information of the second gear stuck point;

[0021] A fourth preset stroke parameter is constructed according to the coordinate information of the first gear stop point and the coordinate information of the second gear stop point.

[0022] Further, the stroke parameter data in the first preset stroke parameter, the stroke parameter data in the second preset stroke parameter, the stroke parameter data in the third preset stroke parameter, and the stroke parameter data in the fourth preset stroke parameter are all different.

[0023] Further, in the step of comparing the actual stroke parameter with the plurality of preset stroke parameters to confirm the coordinate information of the shift hub;

[0024] comparing the actual stroke parameter with the first preset stroke parameter, the second preset stroke parameter, the third preset stroke parameter, and the fourth preset stroke parameter;

[0025] When it is determined that the actual stroke parameter corresponds to one of the first preset stroke parameter, the second preset stroke parameter, the third preset stroke parameter and the fourth preset stroke parameter, the coordinate information of the shift hub is confirmed.

[0026] Further, after the step of confirming the coordinate information of the shift hub, the method further includes:

[0027] When the actual stroke parameter does not correspond to any one of the first preset stroke parameter, the second preset stroke parameter, the third preset stroke parameter and the fourth preset stroke parameter;

[0028] Controlling the shift hub to run twice again, so that when the shift hub passes through the dead point or the stuck point in the two runs, at least two running coordinate information corresponding to the dead point or the stuck point are respectively formed again, wherein the two runs are in opposite directions;

[0029] confirming the actual travel parameter of the shift hub according to at least two pieces of the running coordinate information;

[0030] The actual stroke parameter is compared with a plurality of the preset stroke parameters to confirm the coordinate information of the shift hub.

[0031] A second aspect of the present invention is to provide an asymmetric shift hub, which is used to implement the above-mentioned coordinate information confirmation method based on the asymmetric shift hub. The shift hub includes a shift hub body and a groove body provided in the shift hub body.

[0032] Furthermore, the tank body includes a first sub-tank body and a second sub-tank body.

[0033] Furthermore, the first sub-tank body and the second sub-tank body are arranged asymmetrically.

[0034] Compared with the prior art, the coordinate information confirmation method, system, storage medium and device based on the asymmetric shift hub shown in the present invention have the following beneficial effects:

[0035] In the coordinate information confirmation method based on the asymmetric shift hub provided by the present invention, the confirmation method is applied to a vehicle with a shift hub, and the slot body in the shift hub is asymmetrically arranged. By changing the design of the slot body in the shift hub, the preset stroke parameters between multiple stop points and multiple stuck points formed by the shift hub during operation are different, that is, the confirmation method includes: first obtaining the coordinate information of each stop point and the coordinate information of each stuck point; then analyzing the coordinate information of each stop point and the coordinate information of each stuck point to respectively confirm multiple preset stroke parameters between multiple stop points, between multiple stuck points, and between each stop point and each stuck point; controlling the shift hub to run at least twice, so that when the shift hub passes through the stop point or the stuck point in the two runs, at least two running coordinate information corresponding to the stop point or the stuck point are formed respectively, wherein the two running directions are opposite; confirming the actual stroke parameter of the shift hub according to the at least two running coordinate information; and finally comparing the actual stroke parameter with the multiple preset stroke parameters to confirm the coordinate information of the shift hub. First, by adopting the design of an asymmetric shift hub, the position of the shift hub can be confirmed without installing sensors or calling for motor assistance, and the different preset stroke parameters make the design of the shift mechanism simpler and maintenance more convenient, thereby reducing costs; second, the noise (NVH) during the shifting process is smaller and the sense of frustration is weaker, thereby improving the user's driving experience. Third, the present application does not require high voltage during the self-learning process, avoiding the safety hazards of high voltage in the prior art. At the same time, the coordinate information confirmation of the shift hub can be completed within 3 seconds, which is fast and efficient, further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a flow chart of a method for confirming coordinate information based on an asymmetric shift hub in one embodiment of the present invention;

[0037] Figure 2 A data graph of preset stroke parameters of an asymmetric shift hub during operation in one embodiment of the present invention;

[0038] Figure 3 A data diagram of preset stroke parameters of a symmetrical shift hub in the prior art during operation;

[0039] Figure 4 for Figure 2 and Figure 3 Data comparison chart of

[0040] Figure 5 is a three-dimensional diagram of an asymmetric shift hub in one embodiment of the present invention;

[0041] Figure 6 It is a stereoscopic diagram of a symmetrical shift hub in the prior art.

[0042] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0046] First embodiment

[0047] See also Figure 1 , shown is a coordinate information confirmation method based on an asymmetric shift hub in the first embodiment of the present invention. The confirmation method is applied to a vehicle with a shift hub. The groove body in the shift hub is asymmetrically arranged, so that the preset stroke parameters between multiple stop points and multiple stuck points formed by the shift hub during operation are different. It should be noted that, in this embodiment, the stuck point is the stop point position of the shift hub during operation, indicating that the shift hub must not pass through, and the stuck point is the stuck position of the shift hub during operation, indicating that the shift hub is stuck when passing through and can pass through.

[0048] Specifically, the confirmation methods include:

[0049] S01, obtaining the coordinate information of each stop point and the coordinate information of each stuck point.

[0050] It should be noted that the dead point and the stuck point are the actual states of the shift hub during operation.

[0051] S02, analyzing the coordinate information of each dead point and the coordinate information of each stuck point to respectively confirm a plurality of preset travel parameters between a plurality of dead points, between a plurality of stuck points, and between each dead point and each stuck point.

[0052] It should be noted that in step S02, in the step of respectively confirming multiple preset stroke parameters between multiple dead points, between multiple stuck points, and between each dead point and each stuck point, the multiple dead points include a first gear dead point and a second gear dead point, and the multiple stuck points include a first gear stuck point and a second gear stuck point.

[0053] In some preferred embodiments, the first gear stop point and the second gear stop point do not limit the number of stop points, and the first gear stuck point and the second gear stuck point do not limit the number of stuck points.

[0054] In addition, in the steps of respectively confirming multiple preset stroke parameters between multiple stop points, between multiple stuck points, and between each stop point and each stuck point, the data of the coordinate information in the first gear stop point is smaller than the data of the coordinate information in the first gear stuck point; the data of the coordinate information in the first gear stuck point is smaller than the data of the coordinate information in the second gear stuck point; the data of the coordinate information in the second gear stuck point is smaller than the data of the coordinate information in the second gear stop point.

[0055] That is to say, in step S02, a plurality of preset travel parameters are respectively:

[0056] Constructing a first preset travel parameter according to the coordinate information of the first-gear stuck point and the coordinate information of the second-gear stuck point;

[0057] Constructing a second preset stroke parameter according to the coordinate information of the first gear stuck point and the coordinate information of the second gear dead point;

[0058] Constructing a third preset stroke parameter according to the coordinate information of the first gear dead point and the coordinate information of the second gear stuck point;

[0059] Constructing a fourth preset stroke parameter according to the coordinate information of the first gear stop point and the coordinate information of the second gear stop point;

[0060] Among them, the stroke parameter data in the first preset stroke parameter, the stroke parameter data in the second preset stroke parameter, the stroke parameter data in the third preset stroke parameter and the stroke parameter data in the fourth preset stroke parameter are all different.

[0061] For a better understanding of this case, please refer to Figure 2As shown, p1 is the first gear stop point, p2 is the first gear sticking point, p3 is the second gear stop point, and p4 is the second gear sticking point. According to the coordinate information of p1, p2, p3, and p4, the preset formation parameters of the shift hub can be obtained, which are d1 for the first preset stroke parameter, d2 for the second preset stroke parameter, d3 for the third preset stroke parameter, and d4 for the fourth preset stroke parameter, and d1, d2, d3, and d4 are not equal.

[0062] S03, controlling the shift hub to perform at least two operations, so that when the shift hub passes through a dead point or a stuck point in the two operations, at least two operation coordinate information corresponding to the dead point or the stuck point are respectively formed, wherein the two operations are in opposite directions.

[0063] Specifically, when the vehicle is at a standstill, the shift hub is controlled to perform two operations, and the two operations can be respectively forward rotation and reverse rotation of the shift hub. For example, when the first operation is forward rotation, when the shift hub touches the first gear sticking point during operation, the coordinate information of the first operation is recorded, that is, the coordinate information of p2; when the second operation is reverse rotation, when the shift hub touches the second gear stop point during operation, the coordinate information of the second operation is recorded, that is, the coordinate information of p3.

[0064] S04: confirming actual travel parameters of the shift hub according to at least two pieces of operating coordinate information.

[0065] According to step S03, the coordinate information of p2 and the coordinate information of p3 can be known, and then according to the coordinate information between p2 and p3, the actual stroke parameter of the shift hub can be determined, that is, the first preset stroke parameter d1.

[0066] S05: Compare the actual stroke parameter with a plurality of preset stroke parameters to confirm the coordinate information of the shift hub.

[0067] According to S04 , when the actual stroke parameter is d1 , the actual stroke parameter corresponds to the first preset stroke parameter, thereby clarifying the coordinate information of the shift hub when the vehicle is in a stationary state.

[0068] In addition, to facilitate understanding of the difference between the asymmetric shift hub in this embodiment and the shift hub in the prior art, please refer to Figure 3 As shown, it should be noted that the slot body of the shift hub in the prior art is of symmetrical design, and the shift hub in the prior art also has p1 as the first gear stop point, p2 as the first gear sticking point, p3 as the second gear stop point, and p4 as the second gear sticking point. Correspondingly, d1 is the first preset stroke parameter, d2 is the second preset stroke parameter, d3 is the third preset stroke parameter, and d4 is the fourth preset stroke parameter.

[0069] See also Figure 4As shown, the black thick solid line indicates the state of the asymmetric shift hub in this embodiment when d2 is the second preset stroke parameter. Since the slot body in the shift hub of the prior art is symmetrically designed,

[0070] d1≠d2=d3≠d4

[0071] However, the slot body in the shift hub of the present application is of asymmetric design.

[0072] d1≠d2≠d3≠d4

[0073] That is to say, by changing the design of the slot in the shift hub, in actual situations, the corresponding preset stroke parameters in the operating state of the shift hub are different, thereby having greater reliability and stability when confirming the position of the asymmetric shift hub.

[0074] In summary, the coordinate information confirmation method based on the asymmetric shift hub shown in this embodiment has at least the following beneficial effects compared with the method of determining the position of the shift hub in the prior art:

[0075] In the coordinate information confirmation method based on the asymmetric shift hub provided by the present invention, the confirmation method is applied to a vehicle with a shift hub, and the slot body in the shift hub is asymmetrically arranged. By changing the design of the slot body in the shift hub, the preset stroke parameters between multiple stop points and multiple stuck points formed by the shift hub during operation are different, that is, the confirmation method includes: first obtaining the coordinate information of each stop point and the coordinate information of each stuck point; then analyzing the coordinate information of each stop point and the coordinate information of each stuck point to respectively confirm multiple preset stroke parameters between multiple stop points, between multiple stuck points, and between each stop point and each stuck point; controlling the shift hub to run at least twice, so that when the shift hub passes through the stop point or the stuck point in the two runs, at least two running coordinate information corresponding to the stop point or the stuck point are formed respectively, wherein the two running directions are opposite; confirming the actual stroke parameter of the shift hub according to the at least two running coordinate information; and finally comparing the actual stroke parameter with the multiple preset stroke parameters to confirm the coordinate information of the shift hub. First, by adopting the design of an asymmetric shift hub, the position of the shift hub can be confirmed without installing sensors or calling for motor assistance, and the different preset stroke parameters make the design of the shift mechanism simpler and maintenance more convenient, thereby reducing costs; second, the noise (NVH) during the shifting process is smaller and the sense of frustration is weaker, thereby improving the user's driving experience. Third, the present application does not require high voltage during the self-learning process, avoiding the safety hazards of high voltage in the prior art. At the same time, the coordinate information confirmation of the shift hub can be completed within 3 seconds, which is fast and efficient, further improving safety.

[0076] Second embodiment

[0077] On the other hand, the present invention further provides a coordinate information confirmation method based on an asymmetric shift hub. The coordinate information confirmation method in this embodiment has the same steps as the coordinate information confirmation method in the first embodiment. However, in S05 of this embodiment, after comparing the actual stroke parameter with a plurality of preset stroke parameters to confirm the coordinate information of the shift hub, the method further includes:

[0078] When the actual stroke parameter does not correspond to any one of the first preset stroke parameter, the second preset stroke parameter, the third preset stroke parameter and the fourth preset stroke parameter;

[0079] Controlling the shift hub to run twice again, so that when the shift hub passes through the dead point or the stuck point in the two runs, at least two running coordinate information corresponding to the dead point or the stuck point are respectively formed again, wherein the two runs are in opposite directions;

[0080] confirming the actual travel parameter of the shift hub according to at least two pieces of running coordinate information;

[0081] The actual stroke parameters are compared with a plurality of preset stroke parameters to confirm the coordinate information of the shift hub.

[0082] That is to say, by controlling the shift hub to run at least twice again, the shift hub can obtain two operation coordinate information again during the operation, and then confirm the position of the shift hub based on the two operation coordinate information, thereby further improving the reliability of the shift hub position confirmation.

[0083] Third embodiment

[0084] Another aspect of the present invention also provides an asymmetric shift hub, see Figure 5 , shown is an asymmetric shift hub in the third embodiment of the present invention. The asymmetric shift hub in this embodiment is used to implement the coordinate information confirmation method based on the asymmetric shift hub in the first embodiment or the second embodiment mentioned above. The shift hub includes a shift hub body 100 and a groove body provided in the shift hub body.

[0085] Specifically, the tank body includes a first sub-tank body 110 and a second sub-tank body 120 , and the first sub-tank body 110 and the second sub-tank body 120 are arranged asymmetrically.

[0086] For ease of understanding, the tank body in this embodiment is asymmetrically arranged. Figure 6 , shown is a symmetrical shift hub in the prior art, which also includes a shift hub body 100 and a slot body arranged in the shift hub body. Specifically, the slot body includes a first sub-slot body 110 and a second sub-slot body 120, and the first sub-slot body 110 and the second sub-slot body 120 are symmetrically arranged.

[0087] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0088] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A method for confirming coordinate information based on an asymmetric shift hub, characterized in that: The confirmation method is applied to a vehicle having a shift hub, wherein the groove in the shift hub is asymmetrically arranged so that the preset travel parameters between multiple dead points and multiple stuck points formed by the shift hub during operation are different; The confirmation method comprises: Obtaining coordinate information of each of the stop points and coordinate information of each of the stuck points; Analyzing the coordinate information of each of the stop points and the coordinate information of each of the stuck points to respectively confirm a plurality of preset travel parameters between a plurality of the stop points, between a plurality of the stuck points, and between each of the stop points and each of the stuck points; Controlling the shift hub to run at least twice, so that when the shift hub passes through the dead point or the stuck point in the two runs, at least two running coordinate information corresponding to the dead point or the stuck point are respectively formed, wherein the two runs are in opposite directions; confirming the actual travel parameter of the shift hub according to at least two pieces of the running coordinate information; The actual stroke parameter is compared with a plurality of the preset stroke parameters to confirm the coordinate information of the shift hub.

2. The coordinate information confirmation method based on the asymmetric shift hub according to claim 1, characterized in that: In the step of respectively confirming multiple preset stroke parameters between multiple stop points, between multiple stuck points, and between each stop point and each stuck point, the multiple stop points include a first gear stop point and a second gear stop point, and the multiple stuck points include a first gear stuck point and a second gear stuck point.

3. The coordinate information confirmation method based on the asymmetric shift hub according to claim 2, characterized in that: In the step of respectively confirming a plurality of preset travel parameters between a plurality of the dead points, between a plurality of the stuck points, and between each of the dead points and each of the stuck points, the data of the coordinate information in the first gear dead point is smaller than the data of the coordinate information in the first gear stuck point; The data of the coordinate information in the first-gear stuck point is smaller than the data of the coordinate information in the second-gear stuck point; The data of the coordinate information in the second gear stuck point is smaller than the data of the coordinate information in the second gear dead point.

4. The coordinate information confirmation method based on the asymmetric shift hub according to claim 3 is characterized in that: In the step of respectively confirming a plurality of preset travel parameters between a plurality of the dead points, between a plurality of the stuck points, and between each of the dead points and each of the stuck points, the step includes: constructing a first preset travel parameter according to the coordinate information of the first gear stuck point and the coordinate information of the second gear stuck point; Constructing a second preset stroke parameter according to the coordinate information of the first gear stuck point and the coordinate information of the second gear dead point; Constructing a third preset stroke parameter according to the coordinate information of the first gear dead point and the coordinate information of the second gear stuck point; A fourth preset stroke parameter is constructed according to the coordinate information of the first gear stop point and the coordinate information of the second gear stop point.

5. The coordinate information confirmation method based on the asymmetric shift hub according to claim 4, characterized in that: The stroke parameter data in the first preset stroke parameter, the stroke parameter data in the second preset stroke parameter, the stroke parameter data in the third preset stroke parameter, and the stroke parameter data in the fourth preset stroke parameter are all different.

6. The coordinate information confirmation method based on the asymmetric shift hub according to claim 5, characterized in that: In the step of comparing the actual stroke parameter with the plurality of preset stroke parameters to confirm the coordinate information of the shift hub; comparing the actual stroke parameter with the first preset stroke parameter, the second preset stroke parameter, the third preset stroke parameter, and the fourth preset stroke parameter; When it is determined that the actual stroke parameter corresponds to one of the first preset stroke parameter, the second preset stroke parameter, the third preset stroke parameter and the fourth preset stroke parameter, the coordinate information of the shift hub is confirmed.

7. The coordinate information confirmation method based on the asymmetric shift hub according to claim 6, characterized in that: After the step of confirming the coordinate information of the shift hub, the method further includes: When the actual stroke parameter does not correspond to any one of the first preset stroke parameter, the second preset stroke parameter, the third preset stroke parameter and the fourth preset stroke parameter; Controlling the shift hub to run twice again, so that when the shift hub passes through the dead point or the stuck point in the two runs, at least two running coordinate information corresponding to the dead point or the stuck point are respectively formed again, wherein the two runs are in opposite directions; confirming the actual travel parameter of the shift hub according to at least two pieces of the running coordinate information; The actual stroke parameter is compared with a plurality of the preset stroke parameters to confirm the coordinate information of the shift hub.

8. An asymmetric shift hub, characterized in that: The shift hub is used to implement the coordinate information confirmation method based on the asymmetric shift hub as described in any one of claims 1 to 7 above, and the shift hub includes a shift hub body and a groove body provided in the shift hub body.

9. The asymmetric shift hub according to claim 8, characterized in that: The tank body comprises a first sub-tank body and a second sub-tank body.

10. The asymmetric shift hub according to claim 9, characterized in that: The first sub-tank body and the second sub-tank body are arranged asymmetrically.

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