All-terrain vehicle electronic gear shifting system with power motor power separation structure

Abstract

The all-terrain vehicle electronic gear shifting system with the power motor power separation structure comprises a gearbox assembly, a guide rod assembly, a speed change drum assembly, a gear shifting assembly, a separation detection assembly and a gear shifting control assembly, the speed change drum assembly comprises a speed change drum, a curve groove is formed in the side wall of the speed change drum, an extension detection rod is arranged on the end face of the speed change drum, and the gear shifting assembly is connected with the extension detection rod. The separation detection assembly comprises a mounting base plate and an angle sensor, the extension detection rod is matched with the angle sensor, the gear shifting control assembly comprises a gear shifting controller, a gear shifting switch and a trailer switch, and the gear shifting controller receives signals of the angle sensor and controls the gear shifting assembly. According to the electronic gear shifting system of the all-terrain vehicle, a transmission mechanism of the electric all-terrain vehicle can be physically separated from the motor through the separation detection assembly and the gear shifting control assembly, traction of a trailer is facilitated, the motor is effectively prevented from being damaged, the service life of the all-terrain vehicle is prolonged, and the reliability of the all-terrain vehicle is improved.

Description

Technical Field

[0001] The invention relates to an electronic gear shifting system, more specifically, to an all-terrain vehicle electronic gear shifting system with a power motor power separation structure. Background Art

[0002] Electric motors are replacing engines in ATV / UTV and other all-terrain vehicles. Traditional electric ATV / UTVs perform well on flat roads, but they are somewhat powerless in harsh working conditions such as climbing and off-road escape. The switching between high speed and high torque cannot be fully handled by the power motor control system alone. In this case, a selectable multi-speed ratio gearbox can allow the vehicle to better cope with multiple complex road conditions. If the power motor or controller of the vehicle fails and the vehicle cannot be driven, it needs to be towed to a professional place for repair. The most convenient way to tow is towing.

[0003] In addition, since the transmission mechanism of electric all-terrain vehicles is often directly connected to the power motor, there is no clutch. The forward, reverse and neutral (i.e. electronic neutral) of electric vehicles are achieved through the forward, reverse and stop of the power motor. Therefore, the gearbox only has various reduction ratios, but no physical neutral. When the wheels rotate when towing a trailer, the power motor will be driven to rotate. According to Faraday's law of electromagnetic induction, when a conductor cuts magnetic flux lines in a magnetic field, it will generate current and induced electromotive force. If transported by towing a trailer, the voltage generated by the rotation of the power motor may damage the power motor and the motor controller, thereby affecting the normal use of the vehicle, so electric vehicles can generally only be transferred by flatbed trucks. Summary of the invention

[0004] Based on this, it is necessary to provide an all-terrain vehicle electronic shifting system with a power motor power separation structure to address the above technical problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: An all-terrain vehicle electronic shifting system with a power motor power disengagement structure, characterized in that the all-terrain vehicle electronic shifting system with a power motor power disengagement structure comprises a gearbox assembly, a guide rod assembly, a speed change drum assembly, a shift assembly, a disengagement detection assembly and a shift control assembly, The gearbox assembly comprises a gearbox case and a gearbox case cover, wherein the gearbox case cover is detachably connected to the gearbox case, wherein a main shaft and a secondary shaft are arranged in the gearbox case, wherein a high-speed driving gear and a low-speed driving gear are arranged on the main shaft, and a low-speed driven gear, a switching plate and a high-speed driven gear are arranged on the secondary shaft, wherein the switching plate is located between the low-speed driven gear and the high-speed driven gear. The guide rod assembly comprises a guide rod, a shift fork is arranged on the guide rod, a push rod is arranged on the shift fork, and the shift fork cooperates with the switching disk. The speed change drum assembly comprises a speed change drum, a curved groove is arranged on the side wall of the speed change drum, the curved groove matches with the top rod, a switching driven gear is installed at one end of the speed change drum, and an extended detection rod is arranged on the end surface of the speed change drum. The shift assembly comprises an electric push rod, which comprises a push rod motor, an outer tube and an inner rod. A rotatable switching rod is provided at the end of the inner rod, and a switching driving gear is provided at the end of the switching rod. The switching driving gear cooperates with the switching driven gear. The disengagement detection assembly comprises a mounting base and an angle sensor. The mounting base is mounted on the gearbox housing. The extended detection rod cooperates with the angle sensor. The shift control assembly includes a shift controller, a shift switch and a trailer switch. The shift controller receives the signal of the angle sensor and controls the shift component.

[0006] As a preferred embodiment of the present invention, the trailer switch is a push-button switch.

[0007] As a preferred embodiment of the present invention, the shift control assembly further includes a key switch, a power supply and a fuse.

[0008] As a preferred embodiment of the present invention, a semicircular clamping hole is provided at the center of the angle sensor, a matching plane is provided on the end side wall of the extended detection rod, a substrate through hole is provided on the mounting substrate, and the extended detection rod passes through the substrate through hole.

[0009] As a preferred embodiment of the present invention, the shift assembly further comprises a bracket, and the electric push rod is rotatably mounted on the bracket.

[0010] As a preferred embodiment of the present invention, the switching lever is connected to the inner rod through a pin rod and a cotter pin.

[0011] As a preferred embodiment of the present invention, the central rotating shaft of the switching driving gear is arranged on the gearbox housing.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The electronic shifting system for the all-terrain vehicle utilizes a disengagement detection component and a shifting control assembly to physically disengage the transmission mechanism of the electric all-terrain vehicle from the motor, 1. facilitating trailer towing, effectively preventing damage to the motor and controller, extending the service life of the all-terrain vehicle, and improving the reliability of the all-terrain vehicle; 2. reducing trailer resistance (the power motor will generate great electromagnetic resistance when rotating); 3. After the push rod motor controller exits the trailer mode, the mechanism can also be used as a normal shifting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the scheme of the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a schematic diagram of the structure decomposition of the electronic shifting system for an all-terrain vehicle of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of a shift assembly of an electronic shift system; Figure 3 It is a three-dimensional structural schematic diagram of the electronic shifting system for an all-terrain vehicle of the present invention; Figure 4 for Figure 3 An enlarged schematic diagram of the A region in FIG. Figure 5 It is a working schematic diagram of the shift assembly of the electronic shift system of the present invention; Figure 6 It is a structural schematic diagram of a disengagement detection component of an electronic shifting system of the present invention; Figure 7 The diagram is a connection diagram of the shift control assembly of the electronic shift system of the present invention. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] like Figure 1 As shown, the electronic shifting system for an all-terrain vehicle includes a transmission assembly S1, a guide rod assembly S2, a shift drum assembly S3 and a shift assembly S4.

[0017] The gearbox assembly S1 includes a gearbox case 1 and a gearbox case cover 2, the gearbox case cover 2 is detachably connected to the gearbox case 1, a main shaft 3 and a secondary shaft 17 are arranged in the gearbox case 1, a high-speed driving gear 4 and a low-speed driving gear 5 are arranged on the main shaft 3, a low-speed driven gear 6, a switching disk 8 and a high-speed driven gear 7 are arranged on the secondary shaft 17, and the switching disk 8 is located between the low-speed driven gear 6 and the high-speed driven gear 7.

[0018] The guide rod assembly S2 includes a guide rod 10 , a shift fork 9 is disposed on the guide rod 10 , a push rod 91 is disposed on the shift fork 9 , and the shift fork 9 cooperates with the switching disk 8 .

[0019] The speed-shift drum assembly S3 includes a speed-shift drum 11 . A curved groove 111 is provided on the side wall of the speed-shift drum 11 . The curved groove 111 matches with the push rod 91 . A switching driven gear 12 is provided at one end of the speed-shift drum 11 .

[0020] 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. A rotatable switching rod 14 is provided at the end of the inner rod 153, and a switching driving gear 13 is provided at the end of the switching rod 14. The switching driving gear 13 cooperates with the switching driven gear 12. It should be noted that the switching rod 14 is connected to the inner rod 153 through a pin rod 20S and a cotter pin 20.

[0021] It should be noted that the central rotating shaft 131 of the switching driving gear 13 is arranged on the transmission case 1 .

[0022] In addition, the shift assembly S4 further includes a bracket 16 , and the electric push rod 15 is rotatably mounted on the bracket 16 .

[0023] The shifting process of the electronic shifting system for the all-terrain vehicle is described below.

[0024] The gear positions of the transmission include high gear H, low gear L, neutral gear N and reverse gear R, among which neutral gear N and reverse gear R are completed by controlling the power motor, while high gear H and low gear L are completed by the electronic shifting system.

[0025] When the vehicle is stopped, the driver switches gears by pressing the corresponding buttons on the operation panel. When the vehicle is switched to neutral gear N, the motor controller disconnects the power input of the power motor and the vehicle enters the neutral gear N state. Similarly, when the vehicle is switched to reverse gear R, the motor controller gives a signal to reverse the power motor and the vehicle enters the reverse gear R state.

[0026] When it is necessary to switch to high speed gear H or low speed gear L, it needs to be done through the electronic gear shifting system. When the corresponding gear button is pressed, the inner rod 153 of the electric push rod 15 will extend or shorten, such as Figure 6 As shown, the switching lever 14 rotates, and the switching driving gear 13 rotates synchronously. At the same time, the switching driving gear 13 drives the switching driven gear 12, so that the switching driven gear 12 rotates. Then, the switching driven gear 12 drives the speed change drum 11 to rotate.

[0027] By using the coordination between the curved groove 111 and the push rod 91, the rotation of the speed change drum 11 drives the shift fork 9, so that the shift fork 9 moves left and right on the guide rod 10, and the switching plate 8 is nested in the shift fork 9, so that the switching plate 8 moves synchronously with the shift fork 9. Finally, the claw of the switching plate 8 meshes with the claw of the low-speed driven gear 6 or the high-speed driven gear 7, and transmits power to the corresponding high-speed driving gear 4 or low-speed driving gear 5, thereby completing the switching of the low-speed gear L or the high-speed gear H.

[0028] It should be noted that there is a spring inside the switch plate 8. If, when shifting gears, the claws of the switch plate 8 and the claws of the low-speed driven gear 6 or the high-speed driven gear 7 press against each other instead of engaging with each other, the switch plate 8 is forced to contract inward. When power is input, its claws will be offset as the secondary shaft 17 rotates, and the switch plate 8 is pushed out by the spring to engage with the claws of the corresponding gear.

[0029] like Figure 7 As shown, the electronic shifting system for an all-terrain vehicle further includes a disengagement detection component S6 and a shifting control assembly S7.

[0030] The disengagement detection assembly S6 comprises a mounting base plate 22 and an angle sensor 21 . The mounting base plate 22 is mounted on the gearbox housing 1 . An extended detection rod 110 is provided on the end surface of the gearshift drum 11 . The extended detection rod 110 cooperates with the angle sensor 21 .

[0031] Specifically, a semicircular clamping hole 211 is provided at the center of the angle sensor 21, a matching plane 110S is provided on the end side wall of the extended detection rod 110, and a substrate through hole 221 is provided on the mounting substrate 22, and the extended detection rod 110 passes through the substrate through hole 221. In this way, when the speed change drum 11 rotates, the angle sensor 21 can accurately monitor the rotation direction and rotation angle of the speed change drum 11.

[0032] 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 of 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 .

[0033] It should be noted that the trailer switch 32 is a push-button switch.

[0034] The working modes of the disengagement detection component S6 and the shift control assembly S7 are described below.

[0035] Once a trailer is needed, the driver presses the trailer switch 32 for three seconds and then briefly presses it twice to prevent accidental touches. Then, the angle sensor 21 reads the current position of the shift 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 according to the signal, and pushes the switch plate 8 to the preset gear gap position. At this time, the power of the power motor is disengaged. When the trailer is towed, the power motor is no longer driven to rotate, thereby protecting the power motor. When the towing is completed, the trailer switch 32 is pressed again for three seconds, the electric push rod 15 exits the trailer state, and the shift switch 31 is used to move the electric push rod 15 to the normal gear position.

[0036] It should be noted that the gear gap position is usually located in the middle of the curved groove 111 .

[0037] In addition, the shift controller 30 has a fine-tuning function, which can fine-tune the preset gear gap position.

[0038] The electronic shifting system for the all-terrain vehicle utilizes a disengagement detection component and a shifting control assembly to physically disengage the transmission mechanism of the electric all-terrain vehicle from the power motor, 1. facilitating trailer towing, effectively preventing damage to the power motor and controller, extending the service life of the all-terrain vehicle, and improving the reliability of the all-terrain vehicle; 2. reducing trailer resistance (the power motor will generate great electromagnetic resistance when rotating); 3. After the push rod motor controller exits the trailer mode, the mechanism can also be used as a normal shifting system.

[0039] Obviously, the embodiments described above are only part of the embodiments of the present application, rather than all the embodiments. The drawings provide preferred embodiments of the present application, but do not limit the patent scope of the present application.

Claims

1. An all-terrain vehicle electronic shift system with a power motor power disengagement structure, characterized in that: The electronic shifting system for an all-terrain vehicle with a power motor power disengagement structure comprises a gearbox assembly (S1), a guide rod assembly (S2), a speed change drum assembly (S3), a shift assembly (S4), a disengagement detection assembly (S6) and a shift control assembly (S7). The gearbox assembly (S1) comprises a gearbox housing (1) and a gearbox housing cover (2), wherein the gearbox housing cover (2) is detachably connected to the gearbox housing (1), wherein a main shaft (3) and a secondary shaft (17) are provided in the gearbox housing (1), wherein a high-speed driving gear (4) and a low-speed driving gear (5) are provided on the main shaft (3), and wherein a low-speed driven gear (6), a switching plate (8) and a high-speed driven gear (7) are provided on the secondary shaft (17), wherein the switching plate (8) is located between the low-speed driven gear (6) and the high-speed driven gear (7). The guide rod assembly (S2) comprises 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) comprises a speed change drum (11), a side wall of the speed change drum (11) is provided with a curved groove (111), 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 extended detection rod (110) is provided on the end surface of the speed change drum (11). The shift assembly (S4) comprises an electric push rod (15), the electric push rod (15) comprises a push rod motor (151), an outer cylinder (152) and an inner rod (153), a rotatable switching rod (14) is provided at the end of the inner rod (153), a switching driving gear (13) is provided at the end of the switching rod (14), and the switching driving gear (13) cooperates with the switching driven gear (12). The disengagement detection assembly (S6) comprises a mounting substrate (22) and an angle sensor (21), wherein the mounting substrate (22) is mounted on the gearbox housing (1), and the extended detection rod (110) cooperates with the angle sensor (21). The shift control assembly (S7) comprises a shift controller (30), a shift switch (31) and a trailer switch (32); the shift controller (30) receives a signal from the angle sensor (21) and controls the shift component (S4).

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

3. The electronic shifting system for an all-terrain vehicle with a power motor power disengagement structure according to claim 1, characterized in that: The shift control assembly (S7) further comprises a key switch (33), a power source (34) and a fuse (35).

4. The electronic shifting system for an all-terrain vehicle with a power motor power disengagement structure according to claim 1, characterized in that: A semicircular clamping hole (211) is provided at the center of the angle sensor (21), a matching plane (110S) is provided on the end side wall of the extended detection rod (110), a substrate through hole (221) is provided on the mounting substrate (22), and the extended detection rod (110) passes through the substrate through hole (221).

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

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

7. The electronic shifting system for an all-terrain vehicle with a power motor power disengagement structure according to claim 1, characterized in that: The central rotating shaft (131) of the switching driving gear (13) is arranged on the gearbox housing (1).

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