A gear selection and shifting device based on AMT new energy transmission assembly

Abstract

The present invention provides a shifting device based on an AMT new energy transmission assembly, which controls multiple shift fork shafts through a set of shifting structures, so that the arrangement of the mechanism is simple and the manufacturing cost is reduced. It includes an upper cover plate, and the upper surface of the upper cover plate is provided with a first shift module, a TCU, and a second shifting module. The second shifting module includes a shifting part and a shifting part. The TCU is electrically connected to the shifting part and the shifting part of the first shift module and the second shifting module, respectively. The bottom of the upper cover plate is provided with a first shift fork shaft corresponding to the lower position of the first shift module. The driving input part of the first shift fork shaft is arranged directly below the lower exposed output part of the first shift module. The second shift fork shaft, the third shift fork shaft, and the Nth shift fork shaft are arranged in sequence parallel to the first shift fork shaft, and each shift fork shaft is fixedly sleeved with a corresponding shift fork structure.

Description

Technical Field

[0001] The present invention relates to the technical field of gear selection and shifting structures, and in particular to a gear selection and shifting device based on an AMT new energy transmission assembly. Background Art

[0002] In the existing AMT gearbox-based shifting structure, the TCU is connected to corresponding different shifting motors respectively, and each shifting motor is connected to the corresponding controlled gear output gear through a shift fork structure. In actual practice, once the gear exceeds 6 gears, the entire shifting motor needs to be arranged with many motors, which makes the layout of the entire mechanism complicated and increases the cost. Summary of the invention

[0003] In view of the above problems, the present invention provides a shift selector device based on an AMT new energy transmission assembly, which controls multiple shift fork shafts through a set of shift selector structures, thereby simplifying the layout of the mechanism and reducing the manufacturing cost.

[0004] A shifting device based on an AMT new energy transmission assembly, characterized in that: it includes an upper cover plate, the upper surface of the upper cover plate is provided with a first shifting module, a TCU, and a second shifting module, the second shifting module includes a shifting part and a shifting part, the TCU is electrically connected to the first shifting module, the shifting part and the shifting part of the second shifting module, respectively, the bottom of the upper cover plate is provided with a first shift fork shaft corresponding to the lower position of the first shifting module, the driving input part of the first shift fork shaft is arranged directly below the lower exposed output part of the first shifting module, the second shift fork shaft, the third ... The shift fork shafts up to the Nth shift fork shaft are arranged in sequence parallel to the first shift fork shaft, and a corresponding shift fork structure is fixedly sleeved on each shift fork shaft. Each shift fork shaft except the first shift fork shaft is respectively provided with a convex shift fork finger, and the output end of the shift selection part is exposed below the upper cover plate, and the output end of the shift selection part is rotatably arranged within a radial ring formed by all the shift fork fingers. The shifting part includes a driving part exposed below the upper cover plate, and the driving part is connected to the output end of the shift selection part and drives along the axial direction of the shift fork shaft. A protective cover is also covered on the upper cover plate to ensure the safety of the entire shifting device.

[0005] Its further feature is that the shift fork fingers are arranged at the same vertical vertical position, ensuring that the shift output structure of the shift part is simple and the operating stroke is short;

[0006] The first shift module includes a first shift motor, a first worm, a first worm wheel, and a first transmission shaft. The output end of the first worm motor is connected to the first worm, the first worm is meshedly connected to the first worm wheel, the first transmission shaft is arranged perpendicular to the upper cover plate and exposed at the bottom, and the lower part of the first transmission shaft is provided with a first driving member;

[0007] The first driving member is a first transmission gear, the driving input portion of the first shift fork shaft is a linear rack, the first transmission gear is meshedly connected to the linear rack portion, and the first shift motor drives the first shift fork shaft to drive the first shift fork to shift gears;

[0008] A first angular displacement sensor is provided on the first transmission shaft, and the first angular displacement sensor is electrically connected to the TCU to ensure that the TCU controls the first shift motor in a timely and accurate manner;

[0009] The gear selection part includes a gear selection motor, a second worm, and a second worm wheel. The output end of the gear selection motor is connected to the second worm, the second worm is meshedly connected to the second worm wheel, the second worm wheel is sleeved on the second transmission shaft, and the bottom of the second transmission shaft is sleeved with an output bevel gear. The gear selection part also includes a spline shaft, the spline shaft is arranged parallel to the shift fork shaft, the position of the spline shaft corresponding to the output bevel gear is sleeved with an input bevel gear, the input bevel gear is meshedly connected to the output bevel gear, the spline shaft is sleeved with a second shift head with a guide sleeve, and the second transmission shaft is provided with a second angular displacement sensor, and the second angular displacement sensor is electrically connected to the TCU to ensure that the TCU controls the gear selection motor in a timely and accurate manner;

[0010] The shifting part includes a second shifting motor, a third worm, and a third worm wheel. The output end of the second shifting motor is connected to the third worm, the third worm is meshedly connected to the third worm wheel, the third worm wheel is sleeved on the third transmission shaft, and the third transmission shaft is arranged in parallel with the spline shaft. An upper guide sleeve block (a connecting structure of a lead screw and a lead screw nut) is threadedly connected to the third transmission shaft. A third convex shifting head is arranged on the outer side of the upper guide sleeve block. The lower end of the third shifting head is inserted into the corresponding slot of the lower guide sleeve block. The spline shaft passes through the corresponding connecting circular hole of the lower guide sleeve block. The lower guide sleeve block axially limits the second shifting head and leaves a rotation area for the second shifting head. A third angular displacement sensor is arranged on the third transmission shaft. The third angular displacement sensor is electrically connected to the TCU to ensure that the TCU controls the second shifting motor in a timely and accurate manner.

[0011] The first worm and the third worm are arranged in parallel, the first gear selection motor and the second gear shift motor are arranged at two end positions of the upper cover plate respectively, and the gear selection motor is arranged at one side of the upper cover plate away from the first shift fork shaft;

[0012] Preferably, the first gear selection motor corresponds to selecting the first gear and the second gear output; the value of N is 4, the second shift fork shaft, the third shift fork shaft, and the fourth shift fork shaft are arranged sequentially parallel to the first shift fork shaft and arranged on one side of the first shift fork shaft; the shift fork structure of the second shift fork shaft drives the third gear and the fourth gear output, the shift fork structure of the third shift fork shaft drives the fifth gear and the sixth gear output, and the shift fork structure of the fourth shift fork shaft drives the seventh gear and the reverse gear output.

[0013] After adopting the above technical scheme, it controls multiple shift fork shafts through a set of shift selection structures, which makes the layout of the mechanism simple and reduces the manufacturing cost; due to the use of a set of shift modules and a set of shift selection modules, the multiple shift fork shafts in the shift selection module are arranged in parallel, which makes the height of the shift fork shaft lower than the shift fork shaft of a single multi-speed AMT shift mechanism, so that the height of the transmission cover is reduced, which can meet the installation environment with strict requirements on height space, and has a wider applicability, and on the other hand reduces the cost; the upper cover plate is integrated with the TCU transmission controller, which makes it compactly arranged with each motor and each angular displacement sensor, so that the connecting wire harnesses are shorter, and the distortion of the electrical signal in the wire harness is reduced; at the same time, due to the protection of the protective cover, the resistance to external electromagnetic interference is improved to a certain extent, and the shape of the protective cover and the no longer messy wire harness make the appearance of the transmission look neat and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of a specific embodiment of the present invention Figure 1 ;

[0015] Figure 2 A three-dimensional schematic diagram of a specific embodiment of the present invention Figure 2 ;

[0016] Figure 3 for Figure 1 Schematic diagram of removing the protective cover Figure 1 ;

[0017] Figure 4 for Figure 1 Schematic diagram of removing the protective cover Figure 2 ;

[0018] Figure 5 for Figure 1 A three-dimensional diagram showing the removal of the module protective cover, the protective cover, and the upper cover Figure 1 ;

[0019] Figure 6 for Figure 5 A schematic diagram of the main view structure;

[0020] Figure 7 for Figure 5 A stereogram of Figure 2 ;

[0021] Figure 8 A schematic diagram showing the top view of the connection between the second and third dial heads;

[0022] The names corresponding to the serial numbers in the figure are as follows:

[0023] Upper cover plate 1, first shift module 2, TCU3, second shift selection module 4, first shift fork shaft 5, second shift fork shaft 6, third shift fork shaft 7, shift fork structure 8, shift fork finger 9, first shift motor 10, first worm 11, first worm wheel 12, first transmission shaft 13, first transmission gear 14, first angular displacement sensor 15, shift selection motor 16, second transmission shaft 17, spline shaft 19, second shift head 20, second angular displacement sensor 21, second shift motor 22, third worm 23, third worm wheel 24, third transmission shaft 25, third shift head 26, upper guide sleeve 27, rotating area 28, slot 29, third angular displacement sensor 30, fourth shift fork shaft 31, protective cover 32, second worm 33, second worm wheel 34. DETAILED DESCRIPTION

[0024] A gear selection and shifting device based on AMT new energy transmission assembly, see Figure 1-Figure 8 :It includes an upper cover plate 1, and the upper surface of the upper cover plate 1 is provided with a first shift module 2, a TCU3, and a second shift selection module 4. The second shift selection module 4 includes a shift selection part and a shifting part. The TCU3 is electrically connected to the first shift module 2 and the shift selection part and the shifting part of the second shift selection module 4 respectively. The bottom of the upper cover plate 1 is provided with a first shift fork shaft 5 corresponding to the lower position of the first shift module 2. The driving input part of the first shift fork shaft 5 is arranged directly below the lower exposed output part of the first shift module 2. The second shift fork shaft 5 is electrically connected to the first shift module 2 and the second shift fork shaft 5. The shift fork shaft 6, the third shift fork shaft 7, and the Nth shift fork shaft are arranged in sequence parallel to the first shift fork shaft 5. A corresponding shift fork structure 8 is fixedly sleeved on each shift fork shaft. An upwardly convex shift fork finger 9 is respectively provided on each shift fork shaft except the first shift fork shaft 5. The output end of the shift selection part is exposed below the upper cover plate 1. The output end of the shift selection part is rotatably arranged within a radial ring formed by all the shift fork fingers 9. The shifting part includes a driving part exposed below the upper cover plate 1. The driving part is connected to the output end of the shift selection part and drives along the axial direction of the shift fork shaft.

[0025] Its further feature is that the shift fork fingers 9 are arranged at the same vertical vertical position, ensuring that the shift output structure of the shift part is simple and the operating stroke is short;

[0026] The first shift module 2 includes a first shift motor 10, a first worm 11, a first worm wheel 12, and a first transmission shaft 13. The output end of the first worm motor 10 is connected to the first worm 11, the first worm 11 is meshedly connected to the first worm wheel 12, the first transmission shaft 13 is arranged vertically on the upper cover plate 1 and exposed downward, and the lower part of the first transmission shaft 13 is provided with a first driving member;

[0027] The first driving member is a first transmission gear 14, the driving input part of the first shift fork shaft 5 is a linear rack, the first transmission gear 14 is meshedly connected to the linear rack part, and the first shift motor 10 drives the first shift fork shaft 5 to drive the first shift fork to shift;

[0028] A first angular displacement sensor 15 is provided on the first transmission shaft 5, and the first angular displacement sensor 15 is electrically connected to the TCU3 to ensure that the TCU3 controls the first shift motor 10 in a timely and accurate manner;

[0029] The gear selection part includes a gear selection motor 16, a second worm 33, and a second worm wheel 34. The output end of the gear selection motor 16 is connected to the second worm 33, and the second worm 33 is meshedly connected to the second worm wheel 34. The second worm wheel 34 is sleeved on the second transmission shaft 17, and the bottom of the second transmission shaft 17 is sleeved with an output bevel gear (not shown in the figure, belonging to the existing mature technology). The gear selection part also includes a spline shaft 19, which is arranged parallel to the fork shaft, and the position of the spline shaft 19 corresponding to the output bevel gear is sleeved with an input bevel gear (not shown in the figure, belonging to the existing mature technology), and the input bevel gear is meshedly connected to the output bevel gear. A second shift head 20 with a guide sleeve is sleeved on the spline shaft 19, and a second angular displacement sensor 21 is arranged on the second transmission shaft 17. The second angular displacement sensor 21 is electrically connected to TCU3 to ensure that TCU3 controls the gear selection motor 16 in a timely and accurate manner;

[0030] The output end of the gear selection motor 16 is connected to the second transmission shaft 17, and the second transmission shaft 17 is provided with a second transmission gear 18. The gear selection part also includes a spline shaft 19, which is arranged parallel to the fork shaft, and the spline shaft 19 is provided with a second shift head 20 with a guide sleeve. The second transmission gear 18 penetrates the upper cover plate 1 and then meshes with the outer peripheral teeth of the spline shaft 19. A second angular displacement sensor 21 is provided on the second transmission shaft 17, and the second angular displacement sensor 21 is electrically connected to the TCU3 to ensure that the TCU3 controls the gear selection motor 16 in a timely and accurate manner.

[0031] The shifting part includes a second shifting motor 22, a third worm 23, and a third worm wheel 24. The output end of the second shifting motor 22 is connected to the third worm 23, and the third worm 23 is meshedly connected to the third worm wheel 24. The third worm wheel 24 is sleeved on the third transmission shaft 25. The third transmission shaft is arranged in parallel to the spline shaft 19. An upper guide sleeve block 27 (a connecting structure of a screw and a screw nut) is threadedly connected to the third transmission shaft 25. A downwardly convex third shifting head 26 is arranged on the outer side of the upper guide sleeve block. The lower end of the third shifting head 26 is inserted into a corresponding slot 29 of a lower guide sleeve block (drawn in the figure and similar in structure to the upper guide sleeve block 27). The spline shaft 19 passes through the corresponding connecting circular hole of the lower guide sleeve block. The lower guide sleeve block axially limits the second shifting head 20 and leaves a rotating area 28 for the second shifting head. A third angular displacement sensor 30 is arranged on the third transmission shaft 25. The third angular displacement sensor 30 is electrically connected to TCU3 to ensure that TCU3 controls the second shifting motor 22 in a timely and accurate manner.

[0032] The first worm 11 and the third worm 24 are arranged in parallel, the first gear selection motor 10 and the second gear shift motor 22 are arranged at two ends of the upper cover plate 1 respectively, and the gear selection motor 16 is arranged at one side of the upper cover plate 1 away from the first fork shaft 5;

[0033] In the specific embodiment: the first gear selection motor 10 selects the first gear and the second gear output correspondingly; the value of N is 4, the second fork shaft, the third fork shaft, and the fourth fork shaft are arranged in sequence parallel to the first fork shaft 5 and arranged on one side of the first fork shaft 5; the fork structure of the second fork shaft 6 drives the third gear and the fourth gear output, the fork structure of the third fork shaft 7 drives the fifth gear and the sixth gear output, and the fork structure of the fourth fork shaft 31 drives the seventh gear and the reverse gear output;

[0034] The upper cover plate 1 is also covered with a protective cover 32 to ensure the safety of the entire gear selection and shifting device.

[0035] It controls multiple shift fork shafts through a set of shift selection structures, which simplifies the layout of the mechanism and reduces the manufacturing cost; since a set of shift modules and a set of shift selection modules are used, the multiple shift fork shafts in the shift selection module are arranged in parallel, which makes the height of the shift fork shaft lower than the shift fork shaft of a single multi-speed AMT shift mechanism, and the height of the transmission cover is reduced, which can meet the installation environment with strict requirements on height space, has a wider applicability, and reduces costs on the other hand; the upper cover plate is integrated with the TCU transmission controller, which makes it compactly arranged with each motor and each angular displacement sensor, makes the connecting wire harnesses between each other shorter, and reduces the distortion of the electrical signal in the wire harness; at the same time, due to the protection of the protective cover, the resistance to external electromagnetic interference is improved to a certain extent, and the shape of the protective cover and the no longer messy wire harness make the appearance of the transmission look neat and beautiful.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gear selection and shifting device based on an AMT new energy transmission assembly, characterized in that: It includes an upper cover plate, the upper surface of which is provided with a first shift module, a TCU, and a second shift module, the second shift module including a shift selection part and a shift part, the TCU being electrically connected to the first shift module, the shift selection part and the shift part of the second shift module, respectively, the bottom of the upper cover plate corresponding to the lower position of the first shift module is provided with a first shift fork shaft, the driving input part of the first shift fork shaft is arranged directly below the lower exposed output part of the first shift module, the second shift fork shaft, the third shift fork shaft, and the Nth shift fork shaft. The shift fork shafts are arranged in sequence and parallel to the first shift fork shaft, and a corresponding shift fork structure is fixedly sleeved on each shift fork shaft, and each shift fork shaft except the first shift fork shaft is respectively provided with a convex shift fork finger, and the output end of the shift selection part is exposed below the upper cover plate, and the output end of the shift selection part is rotatably arranged in a radial ring formed by all the shift fork fingers, and the shifting part includes a driving part exposed below the upper cover plate, and the driving part is connected to the output end of the shift selection part and driven to move along the axial direction of the shift fork shaft, and a protective cover is also covered on the upper cover plate; The forks are arranged at positions on the same vertical plane; The first shift module includes a first shift motor, a first worm, a first worm wheel, and a first transmission shaft. The output end of the first shift motor is connected to the first worm, the first worm is meshedly connected to the first worm wheel, the first transmission shaft is arranged perpendicular to the upper cover plate and exposed at the bottom, and the lower part of the first transmission shaft is provided with a first driving member; The first driving member is a first transmission gear, the driving input portion of the first shift fork shaft is a linear rack, the first transmission gear is meshedly connected to the linear rack portion, and the first shift motor drives the first shift fork shaft to drive the first shift fork to shift gears; The gear selection part includes a gear selection motor, a second worm, and a second worm wheel. The output end of the gear selection motor is connected to the second worm, and the second worm is meshedly connected to the second worm wheel. The second worm wheel is mounted on the second transmission shaft, and the bottom of the second transmission shaft is mounted with an output bevel gear. The gear selection part also includes a spline shaft, which is arranged parallel to the shift fork shaft. The position of the spline shaft corresponding to the output bevel gear is mounted with an input bevel gear, and the input bevel gear is meshedly connected to the output bevel gear. A second shift head with a guide sleeve is mounted on the spline shaft, and a second angular displacement sensor is arranged on the second transmission shaft, and the second angular displacement sensor is electrically connected to the TCU.

2. A gear selection and shifting device based on an AMT new energy transmission assembly as claimed in claim 1, characterized in that: The first transmission shaft is provided with a first angular displacement sensor, and the first angular displacement sensor is electrically connected to the TCU.

3. A gear selection and shifting device based on an AMT new energy transmission assembly as claimed in claim 1, characterized in that: The shifting part includes a second shifting motor, a third worm, and a third worm wheel. The output end of the second shifting motor is connected to the third worm, the third worm is meshedly connected to the third worm wheel, the third worm wheel is sleeved on the third transmission shaft, and the third transmission shaft is arranged in parallel to the spline shaft. An upper guide sleeve block is threadedly connected to the third transmission shaft, a third downwardly protruding shift head is arranged on the outer side of the upper guide sleeve block, the lower end of the third shift head is inserted into the corresponding slot of the lower guide sleeve block, the spline shaft passes through the corresponding connecting circular hole of the lower guide sleeve block, the lower guide sleeve block axially limits the second shift head and leaves a rotation area for the second shift head, a third angular displacement sensor is arranged on the third transmission shaft, and the third angular displacement sensor is electrically connected to the TCU.

4. A gear selection and shifting device based on an AMT new energy transmission assembly as claimed in claim 3, characterized in that: The first worm and the third worm are arranged in parallel, the first shift motor and the second shift motor are arranged at two end positions of the upper cover plate respectively, and the gear selection motor is arranged at one side position of the upper cover plate away from the first shift fork shaft.

5. A gear selection and shifting device based on an AMT new energy transmission assembly as claimed in claim 3, characterized in that: The first shift motor corresponds to selecting the first gear and the second gear output; the value of N is 4, the second shift fork shaft, the third shift fork shaft, and the fourth shift fork shaft are arranged in sequence parallel to the first shift fork shaft and arranged on one side of the first shift fork shaft; the shift fork structure of the second shift fork shaft drives the third gear and the fourth gear output, the shift fork structure of the third shift fork shaft drives the fifth gear and the sixth gear output, and the shift fork structure of the fourth shift fork shaft drives the seventh gear and the reverse gear output.

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