Gear shifting device for automatic driving

Abstract

The invention discloses a gear shifting device for automatic driving, and relates to the technical field of automatic driving vehicles, the gear shifting device comprises a gear shifting device shell, a gear groove is formed in the upper surface of the gear shifting device shell, control assemblies are connected to the two sides of the inner surface of the gear shifting device shell, and gear rods are connected to the control assemblies; a fixing assembly is arranged in the gear rod, and the upper surface of the gear rod is connected with a connecting assembly. By arranging the high-precision servo motor, rapid and accurate gear shifting operation can be achieved, the response speed and accuracy of gear shifting are improved, the displacement sensor and the force sensor are arranged, the position of a gear shifting rod and the operating force of a driver can be detected in real time, accurate feedback information is provided for a controller, and the control precision is improved. The reliability and the safety of gear shifting operation are improved, the terminal controller is matched to automatically control the gear shifting operation according to the driving state and the road condition information of the vehicle, and the intelligent gear shifting function in the automatic driving mode is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of autonomous driving vehicles, and in particular to a gear shifting device for autonomous driving. Background Art

[0002] With the continuous development of autonomous driving technology, the driving mode of automobiles has gradually changed from manual driving to autonomous driving. In autonomous driving mode, the vehicle needs to automatically shift gears according to different driving scenarios and road conditions to achieve the best driving performance and energy efficiency.

[0003] Traditional manual shift devices and automatic shift devices have some limitations in autonomous driving scenarios, such as slow shift response, low accuracy, poor reliability, etc. Therefore, it is of great practical significance to develop a high-performance shift device suitable for autonomous driving. Summary of the invention

[0004] The object of the present invention is to provide a gear shifting device for automatic driving to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solution: a shift device for automatic driving, comprising a shift device housing, a shift slot is provided on the upper surface of the shift device housing, control components are connected to both sides of the inner surface of the shift device housing, a shift rod is connected to the control component, a fixing component is provided inside the shift rod, a connecting component is connected to the upper surface of the shift rod, and the shift rod is connected to a handle through the connecting component;

[0006] The control component includes a servo motor fixed to one side of the inner surface of the gear shift device housing and a transmission shaft sliding on one side of the gear shift device housing, the output end of the servo motor is fixedly connected to a shift shaft, the outer surface of the shift shaft is fixedly connected to a connecting sleeve, the outer surface of the connecting sleeve is fixedly connected to a gear, one end of the shift shaft is connected to a force sensor, the outer surface edge of the connecting sleeve is fixedly connected to a displacement sensor, and one side of the transmission shaft is fixedly connected to a rack.

[0007] Furthermore, a guide rail is fixedly connected to the inner surface of the gear shifting device housing on one side away from the transmission shaft, the rack slides inside the guide rail, the rack and the gear are meshed with each other, one side of the force sensor is fixedly connected to the inner surface of the gear shifting device housing, and the gear lever is fixed to the outer surface of the connecting sleeve.

[0008] Furthermore, the other end of the transmission shaft is connected to the gearbox, and the force sensor and the displacement sensor are connected to the terminal controller through wires.

[0009] Furthermore, the fixing assembly includes two receiving grooves provided inside the gear lever, the inner surface of the receiving groove is provided with a through groove, one side of the inner surface of the through groove is provided with a finger groove, the inner bottom of the receiving groove is fixedly connected with a spring, the top of the spring is fixedly connected with an insertion rod, the outer surface of the insertion rod is fixedly connected with a shift rod, and one side of the shift rod passes through the through groove and extends to the inside of the finger groove.

[0010] Furthermore, the connecting assembly includes a fixed shaft fixed on the top of the gear lever, two limit rods are evenly fixedly connected to the outer surface of the fixed shaft, a connecting shaft is sleeved on the outer surface of the fixed shaft, a connecting groove is provided at the bottom of the connecting shaft, two limit rod grooves are evenly provided on the inner surface of the connecting groove, and a clamping groove is provided on the inner surface of the limit rod groove.

[0011] Furthermore, two slots are provided at the edge of the bottom of the connecting shaft, and the top of the insertion rod extends into the inside of the slots.

[0012] Furthermore, the limiting rod and the limiting rod slot are matched with each other, and the clamping slot is fan-shaped and matched with the limiting rod.

[0013] Furthermore, a rubber pad is provided on the top of the shift lever, and the top of the insertion rod passes through the rubber pad.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0015] 1. This application can realize fast and accurate gear shifting operation by setting a high-precision servo motor, improve the response speed and accuracy of gear shifting, and is equipped with a displacement sensor and a force sensor, which can detect the position of the gear shift lever and the driver's operating force in real time, provide accurate feedback information for the controller, and improve the reliability and safety of the gear shifting operation. In combination with the terminal controller, the gear shifting operation can be automatically controlled according to the driving state and road condition information of the vehicle, realizing the intelligent gear shifting function in the automatic driving mode;

[0016] 2. The present application realizes the separation between the handle and the gear lever by setting the mutual cooperation between the fixing component and the connecting component. The driver can flexibly choose a suitable handle for use, thereby solving the disadvantage that the traditional gear lever and handle cannot be replaced. When the gear lever is damaged, the replacement of parts can be reduced to save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is the overall structural view of a gear shift device for automatic driving according to the present invention;

[0019] Figure 2 This is the overall structural view of a shift device control assembly for automatic driving according to the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a shift lever of a shift device for automatic driving according to the present invention;

[0021] Figure 4 This is a cross-sectional view of a shift lever of a shift device for automatic driving according to the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of a connecting shaft of a gear shift device for automatic driving according to the present invention;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of a connecting shaft of a gear shift device for automatic driving according to the patent of the present invention.

[0024] Markings in the accompanying drawings:

[0025] 1. Shift device housing; 2. Handle;

[0026] 3. Control assembly; 31. Servo motor; 32. Driving shaft; 33. Connecting sleeve; 34. Displacement sensor; 35. Force sensor; 36. Rack; 37. Gear; 38. Transmission shaft;

[0027] 4. Shift slot; 5. Shift lever;

[0028] 6. Fixing assembly; 61. Finger slot; 62. Through slot; 63. Insertion rod; 64. Spring; 65. Storage slot; 66. Slot; 67. Lever;

[0029] 7. Connecting assembly; 71. Fixed shaft; 72. Limit rod; 73. Connecting shaft; 74. Connecting groove; 75. Limit rod groove; 76. Card groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 6The present invention provides a technical solution: a shift device for automatic driving, comprising a shift device housing 1, a shift slot 4 is provided on the upper surface of the shift device housing 1, control components 3 are connected to both sides of the inner surface of the shift device housing 1, a shift rod 5 is connected to the control component 3, a fixing component 6 is provided inside the shift rod 5, a connecting component 7 is connected to the upper surface of the shift rod 5, and the shift rod 5 is connected to a handle 2 through the connecting component 7;

[0032] like Figure 2 As shown, the control component 3 includes a servo motor 31 fixed to one side of the inner surface of the gear shift device housing 1 and a transmission shaft 38 sliding on one side of the gear shift device housing 1, the output end of the servo motor 31 is fixedly connected to a shift shaft 32, the outer surface of the shift shaft 32 is fixedly connected to a connecting sleeve 33, the outer surface of the connecting sleeve 33 is fixedly connected to a gear 37, one end of the shift shaft 32 is connected to a force sensor 35, the outer surface edge of the connecting sleeve 33 is fixedly connected to a displacement sensor 34, and one side of the transmission shaft 38 is fixedly connected to a rack 36.

[0033] A guide rail is fixedly connected to one side of the inner surface of the shift device housing 1 away from the transmission shaft 38, the rack 36 slides inside the guide rail, the rack 36 and the gear 37 are meshed with each other, one side of the force sensor 35 is fixedly connected to the inner surface of the shift device housing 1, and the shift rod 5 is fixed to the outer surface of the connecting sleeve 33.

[0034] The other end of the transmission shaft 38 is connected to the gearbox, and the force sensor 35 and the displacement sensor 34 are connected to the terminal controller through wires.

[0035] In practice, the servo motor 31 provides power for the rotation of the toggle shaft 32. The servo motor 31 accurately controls the speed and torque according to the instructions of the terminal controller, thereby realizing accurate gear shifting operation. The terminal controller receives signals from the displacement sensor 34 and the force sensor 35, and controls the operation of the servo motor 31 according to a preset algorithm. The displacement sensor 34 is used to detect the position information of the gear lever 5 in real time, and the force sensor 35 is used to detect the size and direction of the force applied by the driver to the gear lever 5. In the automatic driving mode, the terminal controller automatically controls the operation of the servo motor 31 according to the driving state and road condition information of the vehicle to realize the gear shifting operation. For example, when the vehicle needs to accelerate, the terminal controller controls the servo motor 31 to rotate forward, and drives the gear 37 to rotate through the toggle shaft 32 and the connecting sleeve 33. The gear 37 drives the rack 36 to move linearly, and drives the transmission shaft 38 to control the gearbox to switch to the forward acceleration gear. When the vehicle needs to decelerate, the terminal controller controls the servo motor 31 to reverse, and switches the gear to the deceleration gear through the transmission shaft 38. When the driver needs to manually intervene in the gear shifting, the displacement sensor 34 and the force sensor 35 transmit the detected driver operation signal to the terminal controller. When the driver pushes the shift lever 5 to the forward gear position, the displacement sensor 34 detects the position change of the shift lever 5, and the force sensor 35 detects the thrust applied by the driver. The terminal controller controls the servo motor 31 to rotate forward according to these signals, and switches the gear to the forward gear through transmission.

[0036] like Figure 3 - Figure 5 As shown, the fixing assembly 6 includes two receiving grooves 65 opened inside the shift rod 5, the inner surface of the receiving groove 65 is opened with a through groove 62, one side of the inner surface of the through groove 62 is opened with a finger groove 61, the inner bottom of the receiving groove 65 is fixedly connected with a spring 64, the top of the spring 64 is fixedly connected with an insertion rod 63, the outer surface of the insertion rod 63 is fixedly connected with a lever 67, and one side of the lever 67 passes through the through groove 62 and extends to the inside of the finger groove 61.

[0037] like Figure 3 - Figure 6 As shown, the connecting assembly 7 includes a fixed shaft 71 fixed on the top of the shift rod 5, and two limit rods 72 are evenly fixedly connected to the outer surface of the fixed shaft 71. A connecting shaft 73 is sleeved on the outer surface of the fixed shaft 71, and a connecting groove 74 is provided at the bottom of the connecting shaft 73. The inner surface of the connecting groove 74 is evenly provided with two limit rod grooves 75, and the inner surface of the limit rod groove 75 is provided with a clamping groove 76.

[0038] Two slots 66 are defined at the bottom edge of the connecting shaft 73 , and the top of the inserting rod 63 extends into the inside of the slots 66 .

[0039] The limiting rod 72 and the limiting rod slot 75 are matched with each other, and the clamping slot 76 is fan-shaped and matched with the limiting rod 72 .

[0040] A rubber pad is provided on the top of the shift rod 5 , and the top of the insertion rod 63 passes through the rubber pad.

[0041] In actual use, different drivers have different feel and control sense of the handlebar 2. It is difficult to satisfy the experience of different drivers with a unified and standardized handlebar 2. Therefore, the handlebar 2 can be replaced. Choosing the most suitable handlebar 2 for the driver is the most effective way to increase the driving feel. The downward lever 67 drives the insertion rod 63 to move downward and out of the slot 66. At this time, the connecting shaft 73 can be rotated horizontally, and the limit rod 72 slides relatively inside the slot 76. When the limit rod 72 moves to the inside of the limit rod slot 75, Pull the connecting shaft 73 upward to make the limit rod 72 slide into the inside of the limit rod groove 75, and remove the connecting shaft 73 and replace it with a suitable handle 2. During installation, the limit rod 72 is aligned with the limit rod groove 75 and inserted. The connecting shaft 73 presses the insertion rod 63 downward, and then the connecting shaft 73 is rotated to make the limit rod 72 rotate to the inside of the slot 76. At the same time, the connecting shaft 73 drives the slot 66 to move toward the insertion rod 63. Under the action of the spring 64, the insertion rod 63 is inserted into the inside of the slot 66, completing the installation of the handle 2.

[0042] Working principle: The displacement sensor 34 and the force sensor 35 can detect the moving direction and force of the gear lever 5 in real time, and the detected signal is transmitted to the terminal controller for processing, and the servo motor 31 is controlled to drive, so as to ensure that the gear lever 5 can achieve fast and accurate gear shifting operation, thereby improving the gear shifting response speed and accuracy; through the mutual cooperation between the fixing component 6 and the connecting component 7, the handlebar 2 can be quickly replaced, and the driver can flexibly choose the appropriate handlebar 2 for use.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gear shift device for automatic driving, comprising a gear shift device housing (1), wherein a gear position slot (4) is provided on an upper surface of the gear shift device housing (1), Features: Control components (3) are connected to both sides of the inner surface of the gear shift device housing (1); a gear lever (5) is connected to the control component (3); a fixing component (6) is arranged inside the gear lever (5); a connecting component (7) is connected to the upper surface of the gear lever (5); and the gear lever (5) is connected to a handle (2) via the connecting component (7); The control assembly (3) comprises a servo motor (31) fixed to one side of the inner surface of a gear shift device housing (1) and a transmission shaft (38) sliding on one side of the gear shift device housing (1); the output end of the servo motor (31) is fixedly connected to a shift shaft (32); the outer surface of the shift shaft (32) is fixedly connected to a connecting sleeve (33); the outer surface of the connecting sleeve (33) is fixedly connected to a gear (37); one end of the shift shaft (32) is connected to a force sensor (35); the outer surface edge of the connecting sleeve (33) is fixedly connected to a displacement sensor (34); and one side of the transmission shaft (38) is fixedly connected to a rack (36).

2. The automatic driving shift device according to claim 1, Features: A guide rail is fixedly connected to the inner surface of the gear shift device housing (1) at a side away from the transmission shaft (38); the rack (36) is located inside the guide rail and slides; the rack (36) and the gear (37) are meshed with each other; one side of the force sensor (35) is fixedly connected to the inner surface of the gear shift device housing (1); and the shift lever (5) is fixed to the outer surface of the connecting sleeve (33).

3. The automatic driving shift device according to claim 2, Features: The other end of the transmission shaft (38) is connected to the gearbox, and the force sensor (35) and the displacement sensor (34) are connected to the terminal controller via wires.

4. The automatic driving shift device according to claim 1, Features: The fixing assembly (6) comprises two receiving grooves (65) provided inside the shift lever (5), the inner surface of the receiving groove (65) being provided with a through groove (62), one side of the inner surface of the through groove (62) being provided with a finger groove (61), the inner bottom of the receiving groove (65) being fixedly connected with a spring (64), the top of the spring (64) being fixedly connected with an insertion rod (63), the outer surface of the insertion rod (63) being fixedly connected with a shifting rod (67), one side of the shifting rod (67) passing through the through groove (62) and extending to the inside of the finger groove (61).

5. The automatic driving shift device according to claim 1, Features: The connecting assembly (7) comprises a fixed shaft (71) fixed on the top of the shift rod (5), two limiting rods (72) are evenly fixedly connected to the outer surface of the fixed shaft (71), a connecting shaft (73) is sleeved on the outer surface of the fixed shaft (71), a connecting groove (74) is provided at the bottom of the connecting shaft (73), two limiting rod grooves (75) are evenly provided on the inner surface of the connecting groove (74), and a clamping groove (76) is provided on the inner surface of the limiting rod groove (75).

6. The automatic driving shift device according to claim 5, Features: Two slots (66) are provided at the edge of the bottom of the connecting shaft (73), and the top of the insertion rod (63) extends to the inside of the slots (66).

7. The automatic driving shift device according to claim 5, Features: The limiting rod (72) and the limiting rod slot (75) are adapted to each other, and the clamping slot (76) is fan-shaped and adapted to the limiting rod (72).

8. The automatic driving shift device according to claim 4, Features: A rubber pad is provided on the top of the shift rod (5), and the top of the insertion rod (63) passes through the rubber pad.

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