An all-terrain vehicle electronic gear shifting system with a power motor power disengagement structure

Abstract

The application discloses a kind of all-terrain vehicle electronic gear shifting systems with power motor power disengagement structure, include gearbox assembly, guide rod assembly, speed drum assembly, gear shifting assembly, disengagement detection component and gear shifting control assembly, speed drum assembly includes speed drum, the side wall of speed drum is equipped with curve slot, the end face of speed drum is equipped with extension probe rod, disengagement detection component includes installation base plate and angle sensor, extension probe rod is matched with angle sensor, gear shifting control assembly includes gear shifting controller, gear shifting switch and trailer switch, gear shifting controller receives the signal of angle sensor, and gear shifting assembly is controlled.This all-terrain vehicle electronic gear shifting system utilizes disengagement detection component and gear shifting control assembly, can carry out physical disengagement to the transmission mechanism of electric all-terrain vehicle and motor, facilitate trailer traction, effectively avoid motor to be damaged, prolong the service life of all-terrain vehicle, improve the reliability of all-terrain vehicle.

Description

Technical Field

[0001] This invention relates to an electronic shifting system, and more specifically, to an electronic shifting system for all-terrain vehicles with a power disengagement mechanism for a power motor. Background Technology

[0002] The use of electric motors to replace engines is becoming increasingly widespread in all-terrain vehicles (ATVs) and UTVs. While traditional electric ATVs / UTVs perform adequately on smooth roads, they struggle with demanding conditions such as hill climbing and off-road adventures. The switching between high speeds and high torque cannot be fully handled by the electric motor's control system alone. In such cases, a multi-speed gearbox can better enable the vehicle to cope with various complex road conditions. If the vehicle's electric motor or controller malfunctions, rendering the vehicle immobile, it will need to be towed to a professional repair shop. The most convenient towing method is towing.

[0003] Furthermore, because the transmission mechanism of electric all-terrain vehicles is often directly connected to the drive motor without a clutch, the forward, reverse, and neutral (electronic neutral) movements of the electric vehicle are achieved through the forward, reverse, and stop functions of the drive motor. Therefore, the gearbox only has various reduction ratios, not a physical neutral. When towing a trailer, the rotation of the wheels drives the drive motor. According to Faraday's law of electromagnetic induction, a conductor moving in a magnetic field and cutting magnetic field lines will generate an electric current and an induced electromotive force. If a trailer is used for transportation, the voltage generated by the rotating drive motor may damage the drive motor and motor controller, thus affecting the normal use of the vehicle. Therefore, electric vehicles generally can only be transported using flatbed trucks. Summary of the Invention

[0004] Therefore, it is necessary to provide an electronic gear shifting system for all-terrain vehicles with a power disengagement structure for the power motor, in order to address the aforementioned technical problems.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An electronic shifting system for all-terrain vehicles with a power disengagement mechanism for a drive motor is characterized in that the system comprises a gearbox assembly, a guide rod assembly, a gear drum assembly, a shifting assembly, a disengagement detection assembly, and a shifting control assembly.

[0007] The aforementioned gearbox assembly includes a gearbox housing and a gearbox cover, the gearbox cover being detachably connected to the gearbox housing. The gearbox housing contains a main shaft and a countershaft. The main shaft has a high-speed drive gear and a low-speed drive gear, while the countershaft has a low-speed driven gear, a switching disc, and a high-speed driven gear. The switching disc is located between the low-speed driven gear and the high-speed driven gear.

[0008] The guide rod assembly includes a guide rod, a shift fork on the guide rod, a push rod on the shift fork, and the shift fork cooperates with the switching disk.

[0009] The aforementioned gear shift drum assembly includes a gear shift drum, the side wall of which is provided with a curved groove that mates with the push rod. A switching driven gear is installed at one end of the gear shift drum, and an extension probe is provided on the end face of the gear shift drum.

[0010] The shifting assembly includes an electric push rod, which comprises a push rod motor, an outer cylinder, and an inner rod. The end of the inner rod is provided with a rotatable switching lever, and the end of the switching lever is provided with a switching drive gear. The switching drive gear meshes with the switching driven gear.

[0011] The disengagement detection assembly includes a mounting base and an angle sensor. The mounting base is mounted on the gearbox housing, and the extended detection rod cooperates with the angle sensor.

[0012] The shift control assembly includes a shift controller, a shift switch, and a trailer switch. The shift controller receives signals from the angle sensor and controls the shift components.

[0013] In a preferred embodiment of the present invention, the trailer switch is a push-button switch.

[0014] In a preferred embodiment of the present invention, the shift control assembly further includes a key switch, a power supply, and a fuse.

[0015] In a preferred embodiment of the present invention, the angle sensor has a semi-circular locking hole at its center, the end sidewall of the extension probe has a mating plane, the mounting base has a base plate through hole, and the extension probe passes through the base plate through hole.

[0016] In a preferred embodiment of the present invention, the shifting assembly further includes a bracket, and the electric push rod is rotatably mounted on the bracket.

[0017] In a preferred embodiment of the present invention, the switching lever is connected to the inner rod via a pin and a cotter pin.

[0018] In a preferred embodiment of the present invention, the central rotating shaft for switching the drive gear is disposed on the gearbox housing.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This all-terrain vehicle electronic shifting system utilizes a disengagement detection component and a shifting control assembly to physically disconnect the transmission mechanism of the electric all-terrain vehicle from the motor. This facilitates trailer towing, effectively prevents damage to the motor and controller, extends the service life of the all-terrain vehicle, and improves its reliability. It also reduces trailer resistance (the power motor generates significant electromagnetic resistance when it rotates). After the push rod motor controller exits trailer mode, the mechanism can still be used as a normal shifting system. Attached Figure Description

[0021] To more clearly illustrate the solutions in this invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is an exploded view of the structure of the all-terrain vehicle electronic shifting system of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the shifting components of the electronic shifting system in the image;

[0024] Figure 3 This is a three-dimensional structural diagram of the all-terrain vehicle electronic shifting system of the present invention;

[0025] Figure 4 for Figure 3 An enlarged view of region A in the diagram;

[0026] Figure 5 This is a schematic diagram of the operation of the shifting component of the electronic shifting system of the present invention;

[0027] Figure 6 This is a schematic diagram of the disengagement detection component of the electronic shifting system of the present invention;

[0028] Figure 7 This is a schematic diagram of the connection of the shift control assembly of the electronic shift system of the present invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] like Figure 1 As shown, the all-terrain vehicle electronic shifting system includes a gearbox assembly S1, a guide rod assembly S2, a gear drum assembly S3, and a shifting assembly S4.

[0031] The gearbox assembly S1 includes a gearbox housing 1 and a gearbox cover 2. The gearbox cover 2 is detachably connected to the gearbox housing 1. The gearbox housing 1 is provided with a main shaft 3 and a secondary shaft 17. The main shaft 3 is provided with a high-speed drive gear 4 and a low-speed drive gear 5. The secondary shaft 17 is provided with a low-speed driven gear 6, a switching disk 8 and a high-speed driven gear 7. The switching disk 8 is located between the low-speed driven gear 6 and the high-speed driven gear 7.

[0032] The guide rod assembly S2 includes a guide rod 10, on which a fork 9 is provided, and a push rod 91 is provided on the fork 9. The fork 9 cooperates with the switching disk 8.

[0033] The gear shift drum assembly S3 includes a gear shift drum 11, on the side wall of which is provided a curved groove 111, which cooperates with the push rod 91. One end of the gear shift drum 11 is provided with a switching driven gear 12.

[0034] like Figure 2 As shown, the shift assembly S4 includes an electric push rod 15, which includes a push rod motor 151, an outer cylinder 152, and an inner rod 153. The end of the inner rod 153 is provided with a rotatable switching lever 14, and the end of the switching lever 14 is provided with a switching drive gear 13, which meshes with the switching driven gear 12. It should be noted that the switching lever 14 is connected to the inner rod 153 via a pin 20S and a cotter pin 20.

[0035] It should be noted that the central rotating shaft 131 of the switching drive gear 13 is located on the gearbox housing 1.

[0036] In addition, the shift assembly S4 also includes a bracket 16 on which the electric push rod 15 is rotatably mounted.

[0037] The shifting process of the electronic shifting system of this all-terrain vehicle is explained below.

[0038] The gearbox has four gears: high gear (H), low gear (L), neutral (N), and reverse gear (R). Neutral (N) and reverse gear (R) are controlled by the power motor, while high gear (H) and low gear (L) are operated by the electronic shifting system.

[0039] When the vehicle is stationary, the driver shifts gears using the corresponding buttons on the control panel. When shifting to neutral (N), the motor controller disconnects the power input to the drive motor, and the vehicle enters neutral (N) mode. Similarly, when shifting to reverse (R), the motor controller sends a signal to reverse the drive motor, and the vehicle enters reverse (R) mode.

[0040] When switching between high gear (H) and low gear (L), it must be done through the electronic shifting system. When the corresponding gear button is pressed, the inner rod 153 of the electric actuator 15 will extend or retract, as... Figure 6 As shown, the switching lever 14 rotates, and the switching drive gear 13 rotates synchronously. Simultaneously, the switching drive gear 13 drives the switching driven gear 12, causing the switching driven gear 12 to rotate. Subsequently, the switching driven gear 12 drives the transmission drum 11 to rotate.

[0041] By utilizing the interaction between the curved groove 111 and the push rod 91, the rotation of the transmission drum 11 drives the shift fork 9, causing the shift fork 9 to move left and right on the guide rod 10. The shift disc 8 is nested within the shift fork 9, thus moving synchronously with it. Finally, the claw of the shift disc 8 meshes with the claw of the low-speed driven gear 6 or the high-speed driven gear 7, transmitting power to the corresponding high-speed drive gear 4 or low-speed drive gear 5, thereby completing the shift between low-speed gear L and high-speed gear H.

[0042] It should be noted that the shifting disc 8 contains a spring. When shifting gears, if the claw of the shifting disc 8 is pressed against the claw of the low-speed driven gear 6 or the high-speed driven gear 7 instead of meshing, the shifting disc 8 will be forced to contract inward. When power is input, its claw will be displaced as the countershaft 17 rotates, and the shifting disc 8 will be pushed out under the action of the spring to mesh with the claw of the corresponding gear.

[0043] like Figure 7 As shown, the all-terrain vehicle's electronic shift system also includes a disengagement detection component S6 and a shift control assembly S7.

[0044] The disengagement detection assembly S6 includes a mounting base 22 and an angle sensor 21, the mounting base 22 being mounted on the gearbox housing 1. An extension probe 110 is provided on the end face of the transmission drum 11, the extension probe 110 cooperating with the angle sensor 21.

[0045] Specifically, the angle sensor 21 has a semi-circular locking hole 211 at its center, the end sidewall of the extended probe 110 has a mating plane 110S, and the mounting base 22 has a base plate through hole 221 through which the extended probe 110 passes. Thus, when the gear shift drum 11 rotates, the angle sensor 21 can accurately monitor the rotation direction and angle of the gear shift drum 11.

[0046] The shift control assembly S7 includes a shift controller 30, a shift switch 31, and a trailer switch 32. The shift controller 30 receives signals from the angle sensor 21 and controls the shift assembly S4. The shift control assembly S7 also includes a key switch 33, a power supply 34, and a fuse 35.

[0047] It should be noted that the trailer switch 32 is a push-button switch.

[0048] The following describes the operation of the disengagement detection component S6 and the shift control assembly S7.

[0049] When towing is required, the driver presses and holds the trailer switch 32 for three seconds, then presses it twice briefly to prevent accidental activation. The angle sensor 21 reads the current position of the transmission drum 11 and sends a signal to the shift controller 30. The shift controller 30 then controls the extension and retraction of the electric push rod 15 of the shift assembly S4 based on this signal, pushing the shift disc 8 to the preset gear gap position. At this time, the power motor is disengaged. When towing the trailer, it no longer drives the power motor, thus protecting it. After towing is complete, the driver presses and holds the trailer switch 32 again for three seconds, the electric push rod 15 exits the towing state, and the shift switch 31 moves the electric push rod 15 to the normal gear position.

[0050] It should be noted that the gear gap position is usually located in the middle of the curved groove 111.

[0051] In addition, the shift controller 30 has a fine-tuning function, which can fine-tune the preset gear gap position.

[0052] This all-terrain vehicle electronic shifting system utilizes a disengagement detection component and a shifting control assembly to physically disconnect the transmission mechanism of the electric all-terrain vehicle from the power motor. This facilitates trailer towing, effectively prevents damage to the power motor and controller, extends the service life of the all-terrain vehicle, and improves its reliability. It also reduces trailer resistance (the power motor generates significant electromagnetic resistance when it rotates). Furthermore, after the push rod motor controller exits trailer mode, the mechanism can still be used as a normal shifting system.

[0053] Obviously, the embodiments described above are only some embodiments of this application, and not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application.

Claims

1. An electronic shifting system for an all-terrain vehicle with a power disengagement structure from a power motor, characterized in that, The all-terrain vehicle electronic shifting system with a power disengagement structure includes a gearbox assembly (S1), a guide rod assembly (S2), a gear drum assembly (S3), a shifting assembly (S4), a disengagement detection assembly (S6), and a shifting control assembly (S7). The gearbox assembly (S1) includes a gearbox housing (1) and a gearbox cover (2). The gearbox cover (2) is detachably connected to the gearbox housing (1). The gearbox housing (1) contains a main shaft (3) and a secondary shaft (17). The main shaft (3) is provided with a high-speed drive gear (4) and a low-speed drive gear (5). The secondary shaft (17) is provided with a low-speed driven gear (6), a switching disc (8), and a high-speed driven gear (7). The switching disc (8) is located between the low-speed driven gear (6) and the high-speed driven gear (7). The guide rod assembly (S2) includes a guide rod (10), a shift fork (9) is provided on the guide rod (10), a push rod (91) is provided on the shift fork (9), and the shift fork (9) cooperates with the switching disk (8). The speed change drum assembly (S3) includes a speed change drum (11), and a curved groove (111) is provided on the side wall of the speed change drum (11). The curved groove (111) cooperates with the push rod (91). A switching driven gear (12) is installed at one end of the speed change drum (11), and an extension probe (110) is provided on the end face of the speed change drum (11). The shifting assembly (S4) includes an electric push rod (15), which includes a push rod motor (151), an outer cylinder (152), and an inner rod (153). The inner rod (153) has a rotatable switching rod (14) at its end, and the switching rod (14) has a switching drive gear (13) at its end. The switching drive gear (13) cooperates with the switching driven gear (12). The disengagement detection assembly (S6) includes a mounting base (22) and an angle sensor (21). The mounting base (22) is mounted on the gearbox housing (1). The extension probe (110) cooperates with the angle sensor (21). The shift control assembly (S7) includes a shift controller (30), a shift switch (31) and a trailer switch (32). The shift controller (30) receives the signal from the angle sensor (21) and controls the shift assembly (S4).

2. The all-terrain vehicle electronic shifting system with a power disengagement structure for the power motor as described in claim 1, characterized in that, The trailer switch (32) is a push-button switch.

3. The all-terrain vehicle electronic shifting system with a power disengagement structure for the power motor as described in claim 1, characterized in that, The shift control assembly (S7) also includes a key switch (33), a power supply (34), and a fuse (35).

4. The all-terrain vehicle electronic shifting system with a power disengagement structure for the power motor as described in claim 1, characterized in that, The angle sensor (21) has a semi-circular card hole (211) at its center, the end sidewall of the extension probe (110) has a mating plane (110S), the mounting base plate (22) has a base plate through hole (221), and the extension probe (110) passes through the base plate through hole (221).

5. The all-terrain vehicle electronic shifting system with a power disengagement structure for the power motor as described in claim 1, characterized in that, The shift assembly (S4) further includes a bracket (16), on which the electric push rod (15) is rotatably mounted.

6. The all-terrain vehicle electronic shifting system with a power disengagement structure for the power motor as described in claim 1, characterized in that, The switching lever (14) is connected to the inner rod (153) via a pin (20S) and a cotter pin (20).

7. The all-terrain vehicle electronic shifting system with a power disengagement structure for a power motor as described in claim 1, characterized in that, The central rotating shaft (131) of the switching drive gear (13) is mounted on the gearbox housing (1).

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