阅读说明：本技术 新能源汽车自动换档执行器及其自动换挡方法 (Automatic gear shifting actuator of new energy automobile and automatic gear shifting method thereof ) 是由 何龙 于 2021-11-08 设计创作，主要内容包括：本发明涉及新能源汽车领域,尤其涉及新能源汽车自动换档执行器及其自动换挡方法,包括有壳体、自动换挡组件、低速变挡组件、调挡组件等；壳体内部设有自动换挡组件,壳体上设有低速变挡组件,自动换挡组件上设有调挡组件。通过带杆八面轴及其上装置的配合,使得新能源汽车可以在高速行驶时自动换挡,从而使新能源汽车循序渐进地提速,避免了机械换挡的顿挫感,不但可以节能,还可以提高驾驶体验。(The invention relates to the field of new energy automobiles, in particular to an automatic gear shifting actuator and an automatic gear shifting method of a new energy automobile, wherein the automatic gear shifting actuator comprises a shell, an automatic gear shifting assembly, a low-speed gear shifting assembly, a gear shifting assembly and the like; the inside automatic gear shifting assembly that is equipped with of casing is equipped with the low-speed subassembly that shifts on the casing, is equipped with the subassembly that shifts gears on the automatic gear shifting assembly. Through the cooperation of taking the octahedral axle of pole and device on it for new energy automobile can be when high-speed traveling automatic gearshift, thereby makes new energy automobile progressively accelerate, has avoided the pause of mechanical gearshift to feel, not only can be energy-conserving, can also improve and drive experience.)

1. New energy automobile automatic gear shift executor includes:

a housing (1);

the power switching part is arranged inside the shell (1), the power switching part comprises a special-shaped supporting shell (21), the special-shaped supporting shell (21) is fixedly connected inside the shell (1), a special-shaped slotted gear ring (22) is rotatably connected to one side inside the special-shaped supporting shell (21), a spline gear shaft (23) is rotatably connected inside the special-shaped slotted gear ring (22), an arc-shaped slotted gear ring (24) is rotatably connected to the other side inside the special-shaped supporting shell (21), and a buckled gear ring (25) is rotatably connected to the outside of the special-shaped slotted gear ring (22);

the automatic gear shifting assembly (2) is arranged inside the special-shaped support shell (21) and comprises an annular support frame (26), and the annular support frame (26) is rotatably connected inside the arc-shaped slotted gear ring (24); one side of the annular supporting frame (26) is in triangular rotary type and is connected with a multi-stage planetary gear; the multi-stage planetary gear is meshed with an arc slotted gear ring (24), a gear ring with a buckle (25), a special slotted gear ring (22) and a spline gear shaft (23), the tail end of the spline gear shaft (23) is provided with a low-speed gear shifting component (3),

the method is characterized in that: the low-speed gear shifting assembly (3) is arranged opposite to the automatic gear shifting assembly (20); including heterotypic trompil frame (31), area axle arc friction disc (32), one side of keeping away from spline gear shaft (23) in casing (1) is located heterotypic trompil frame (31), area axle arc friction disc (32) are connected with heterotypic trompil frame (31) rotary type to be connected with second reset spring (33) between area axle arc friction disc (32) and heterotypic trompil frame (31), heterotypic supporting housing (21) outside is equipped with gear shifting subassembly (4), gear shifting subassembly (4) and low-speed gear shifting subassembly (3) sliding connection.

2. The automatic gear shifting actuator of the new energy automobile is characterized in that the multi-stage planetary gears comprise a first planetary gear (27), a second planetary gear (28) and a third planetary gear (29) which are arranged in sequence; the first planet gear (27) is arranged close to the annular supporting frame (26), the first planet gear (27) is meshed with the arc-shaped slotted gear ring (24), the second planet gear (28) is meshed with the gear ring (25) with the buckle, and the third planet gear (29) is meshed with the special-shaped slotted gear ring (22);

the special-shaped slotted gear ring (22) and the buckle-equipped gear ring (25) are internally connected with five first clamping rods (210) in a circumferential sliding mode, a pair of first reset springs (211) is connected between the five first clamping rods (210) and the special-shaped slotted gear ring (22), and a pair of first reset springs (211) is connected between the five first clamping rods (210) and the buckle-equipped gear ring (25).

3. The automatic gear shifting actuator of the new energy automobile according to claim 2,

the low-speed gear shifting assembly (3) further comprises a pair of arc-shaped supporting frames (34), the arc-shaped supporting frames (34) are arranged on one side, close to the automatic gear shifting assembly (2), of the special-shaped opening frame (31), friction discs (35) with lugs are connected between the two arc-shaped supporting frames (34) in a rotating mode, one side, close to the spline gear shaft (23), of the special-shaped opening frame (31) is connected with a pair of rectangular opening rotating frames (36) in a rotating mode, the rectangular opening rotating frames (36) are located between the friction discs (35) with lugs and the arc-shaped friction discs (32) with shafts, friction wheels (37) are connected in the middle of the rectangular opening rotating frames (36) in a rotating mode, adjusting gears (38) are fixedly connected to two ends of the rectangular opening rotating frames (36), a pair of rectangular sliding rail blocks (39) are fixedly connected to the special-shaped opening frame (31), and N-type rack frames (310) are connected to the rectangular sliding rail blocks (39) in a sliding mode, the N-type rack (310) is meshed with the adjusting gear (38), a first electromagnet (311) is fixedly connected inside the rectangular sliding rail block (39), the first electromagnet (311) is in contact with the N-type rack (310), a first homing spring (312) is connected between the N-type rack (310) and the rectangular sliding rail block (39), one side, close to the spline gear shaft (23), of the friction disc (35) with the lug is connected with an octahedral sliding shaft (313) in a sliding mode, the octahedral sliding shaft (313) is sleeved inside the spline gear shaft (23), and two pairs of second homing springs (314) are connected between the octahedral sliding shaft (313) and the friction disc (35) with the lug.

4. The automatic gear shifting actuator of the new energy automobile is characterized in that the spline gear shaft (23) is formed by cold extrusion, and the spline gear shaft (23) is internally provided with a cylindrical groove and an eight-surface groove.

5. The automatic gear shifting actuator of the new energy automobile according to claim 3, characterized in that the surface of the friction wheel (37) is rough.

6. The automatic gear shifting actuator of the new energy automobile according to claim 3, wherein the gear shifting assembly (4) comprises a second electromagnet (41), a shifting fork shaft (42) and a first reducing spring (43), the second electromagnet (41) is fixedly connected to the top of the special-shaped support shell (21), the shifting fork shaft (42) is slidably connected to the upper portion of the special-shaped support shell (21), the shifting fork shaft (42) is slidably matched with the friction disc (35) with the convex block, the shifting fork shaft (42) is in contact with the octahedral sliding shaft (313), and the first reducing spring (43) is connected between the shifting fork shaft (42) and the special-shaped support shell (21).

7. The automatic gear shifting method of the automatic gear shifting actuator of the new energy automobile is characterized by comprising the following working steps of:

s1, shifting the congested road: a driver steps on an accelerator, the electromagnet I (311) is electrified to drive the N-type rack (310) to move, the first return spring (312) is compressed accordingly, the N-type rack (310) drives the adjusting gear (38) and the upper device thereof to rotate, the transmission ratio among the arc friction disc (32) with the shaft, the friction wheel (37) and the friction disc (35) with the lug boss is changed, and the transmission efficiency is improved; when a driver looses the accelerator, the electromagnet I (311) is powered off, and then the first return spring (312) can be reset and drives the N-shaped rack (310) and the upper device thereof to reset;

s2, normal driving gear shifting: a driver controls the electromagnet II (41) to be electrified, the shifting fork shaft (42) and the first reducing spring (43) can be compressed accordingly, the shifting fork shaft (42) can push the octahedral sliding shaft (313) to move, the second homing spring (314) can be compressed accordingly, the octahedral sliding shaft (313) is not matched with the spline gear shaft (23) any more, the octahedral sliding shaft (313) can be sleeved with the special-shaped slotted gear ring (22), the special-shaped slotted gear ring (22) drives the spline gear shaft (23) to rotate through the planetary gear III (29), and the spline gear shaft (23) transmits power to wheels of the new energy automobile.

Technical Field

The invention relates to the field of new energy automobiles, in particular to an automatic gear shifting actuator of a new energy automobile and an automatic gear shifting method thereof.

Background

With the improvement of environmental awareness of people, new energy automobiles are rapidly developed, the new energy automobiles adopt electric energy as a power source to replace gasoline and diesel oil, gear shifting is required in the driving process of the new energy automobiles as well as the fuel automobiles, and the electric vehicle automatic speed changing system has the greatest structural characteristic that a clutch and a synchronizer are eliminated, and the synchronization of the rotating speed of a motor and the rotating speed of a next gear in the gear shifting process is realized by means of the speed regulating function of the motor. The clutch is still adopted in some high-end new energy vehicles, for example, the invention patent with the application number of CN201811439138.6 discloses a clutch for the new energy vehicles, and the invention patent application with the application number of CN201910316158.2 discloses a double clutch control device for the new energy vehicles.

At present, a pure electric vehicle generally adopts a multi-stage speed reducer with a single speed ratio, but a main driving motor with an ultrahigh rotating speed is generally adopted to meet the requirements of large-torque starting acceleration and highest vehicle speed. In order to reduce the hardware design difficulty of the transmission, the design scheme of the two-gear automatic transmission is more and more emphasized, and as a key assembly in the two-gear automatic transmission, the design quality of a gear shifting execution mechanism determines the gear shifting performance of the two-gear automatic transmission to a great extent.

In addition, in the process that new energy automobile goes, speed is constantly changeable, has the feeling of setback in the in-process of shifting, can influence the driving experience to when new energy automobile is traveling in the highway section that blocks up, prior art need realize the variable speed through frequently shifting, and it is smooth and easy not enough to shift, leads to the executor impaired easily, can further increase the feeling of setback simultaneously.

Utility model patent with application number CN201720064197.4 discloses a shift actuating mechanism for electric vehicle, it includes: the gear shifting mechanism comprises an upper shell, a lower shell, a helical gear, a worm, a direct current motor, a coupler, a gear shifting head and an angular displacement sensor; the TCU directly controls the positive and negative rotation of the direct current motor, and the three position switching of high and low gears and neutral gear is realized by a speed reducing mechanism consisting of a worm and a helical gear and an angular displacement sensor for feeding back the position of a gear shifting block. The gear shifting actuating mechanism for the electric vehicle can realize accurate gear shifting displacement and gear shifting speed control by matching with the TCU, and low-noise quick gear shifting is realized.

The invention patent application with the application number of CN201810142069.6 discloses a gear shifting actuator for a new energy automobile, which adopts three-level gear transmission; the first and second stages adopt worm gears and worms, the third stage adopts straight gear transmission, and the first-stage gear consists of a first-stage worm and a first-stage worm gear; the secondary gear consists of a secondary worm and secondary worm teeth; the driving motor is linked with the first-stage worm gear through the worm of the first-stage gear, the first-stage worm gear is linked with the second-stage worm gear through the second-stage worm of the second-stage gear, and then the third-stage gear is linked with the third-stage gear, and the angle sensor is fixed at the end part of the output shaft of the third-stage transmission gear. The automobile gear shifting actuator occupies small space, can be used for gear shifting of new energy automobiles and automatic driving automobiles, and can also be used for gear shifting in a mode of replacing a traditional fuel automobile handle.

Disclosure of Invention

The invention aims to provide an automatic gear shifting actuator of a new energy automobile and an automatic gear shifting method thereof, wherein the automatic gear shifting actuator can be used for gradually increasing the speed to reduce the jerking feeling and carrying out stepless speed change when the new energy automobile runs on a congested road section.

The technical scheme of the invention is as follows: the automatic gear shifting actuator and the automatic gear shifting method for the new energy automobile comprise the following steps:

a housing;

the power switching part is arranged inside the shell and comprises a special-shaped supporting shell, a special-shaped slotted gear ring, a spline gear shaft, an arc-shaped slotted gear ring and a tooth ring with a buckle, the special-shaped supporting shell is fixedly connected inside the shell, the special-shaped slotted gear ring is rotatably connected to one side inside the special-shaped supporting shell, the spline gear shaft is rotatably connected inside the special-shaped slotted gear ring, the arc-shaped slotted gear ring is rotatably connected to the other side inside the special-shaped supporting shell, and the tooth ring with the buckle is rotatably connected to the outer part of the special-shaped slotted gear ring;

the automatic gear shifting assembly is arranged inside the special-shaped support shell and comprises an annular support frame, and the annular support frame is rotatably connected inside the arc-shaped slotted gear ring; one side of the annular support frame is in triangular rotary type connection with a multi-stage planetary gear; the multistage planetary gear is meshed with the arc-shaped slotted gear ring, the gear ring with the buckle, the special-shaped slotted gear ring and the spline gear shaft;

the low-speed gear shifting assembly is arranged at the tail end of the spline gear shaft and is opposite to the automatic gear shifting assembly; the special-shaped opening frame is arranged on one side, far away from the spline gear shaft, in the shell, the special-shaped opening frame is rotatably connected with the special-shaped opening frame, and a second reset spring is connected between the special-shaped opening frame and the special-shaped opening frame;

and the gear shifting assembly is arranged on the outer side of the special-shaped support shell and is in sliding connection with the low-speed gear shifting assembly.

By adopting the technical scheme, the automatic gear shifting assembly is used for shifting to a higher gear, so that the electric energy of the motor can be utilized, the energy consumption is reduced, and the transmission efficiency is improved; the low-speed gear shifting assembly is suitable for automatically shifting gears on congested road sections and plays a role in avoiding pause and frustration; the gear shifting assembly is used for automatically changing speed at normal running speed, and plays a role in improving driving experience; the power switching component is used for assisting the automatic gear shifting assembly to switch power, and smooth and natural gear shifting is guaranteed.

Furthermore, the multi-stage planetary gear comprises a first planetary gear, a second planetary gear and a third planetary gear;

an annular support frame is rotatably connected inside the arc-shaped slotted gear ring, one side of the annular support frame, which is close to the special-shaped slotted gear ring, is connected with a first planet gear in a triangular rotating mode, the first planet gear is meshed with the arc-shaped slotted gear ring, a second planet gear is rotatably connected to the annular support frame in a triangular rotating mode, the second planet gear is meshed with a first planet gear with a clamping gear ring, a third planet gear is rotatably connected to the annular support frame in a triangular rotating mode, the third planet gear is positioned on the right side of the second planet gear, the third planet gear is meshed with the special-shaped slotted gear ring, the first planet gear, the second planet gear and the third planet gear are all meshed with a spline gear shaft, five clamping rods I are slidably connected inside the special-shaped slotted gear ring and the clamping gear ring in a circumferential mode, a pair of first return springs is connected between the first five clamping rods and the special-shaped slotted gear ring, and a pair of first return springs is connected between the first five clamping rods and the gear ring with the buckle.

Furthermore, the low-speed gear shifting assembly also comprises a pair of arc-shaped supporting frames; a pair of arc-shaped supporting frames are fixedly connected to the right side inside the shell, the arc-shaped supporting frames are positioned on the left side of the special-shaped perforated frame, a friction disc with a convex block is rotatably connected between the two arc-shaped supporting frames, a pair of rectangular perforated rotating frames are rotatably connected to the left side of the special-shaped perforated frame, the rectangular perforated rotating frames are positioned between the friction disc with the convex block and the arc-shaped friction disc with a shaft, a friction wheel is rotatably connected to the middle of each rectangular perforated rotating frame, adjusting gears are fixedly connected to the front side and the rear side of each rectangular perforated rotating frame, a pair of rectangular sliding rail blocks are fixedly connected to the special-shaped perforated frame, an N-type rack is slidably connected to each rectangular sliding rail block, the N-type rack positioned on the front side is meshed with the two adjusting gears positioned on the front side, the N-type rack positioned on the rear side is meshed with the two adjusting gears positioned on the rear side, an electromagnet I is fixedly connected to the inside each rectangular sliding rail block, and is contacted with the N-type rack, a first homing spring is connected between the N-type rack and the rectangular sliding rail block, an octahedral sliding shaft is connected to the left side of the friction disc with the convex block in a sliding manner, the octahedral sliding shaft is sleeved inside the spline gear shaft, and two pairs of second homing springs are connected between the octahedral sliding shaft and the friction disc with the convex block.

Furthermore, spline gear shaft is through cold extrusion moulding, and inside cylindrical groove and the eight face groove of being of spline gear shaft plays the effect of being convenient for switch the power between spline gear shaft and the eight face sliding shaft.

Further, the friction wheel has a rough surface for transmitting power between the friction disk with projections and the arc-shaped friction disk with shafts.

Furthermore, the gear shifting assembly comprises a second electromagnet, a shifting fork shaft and a first reducing spring, the second electromagnet is fixedly connected to the top of the special-shaped support shell, the shifting fork shaft is connected to the upper portion of the special-shaped support shell in a sliding mode, the shifting fork shaft is in sliding fit with the friction disc with the convex block, the shifting fork shaft is in contact with the octahedral sliding shaft, and the first reducing spring is connected between the shifting fork shaft and the special-shaped support shell.

Further, the high-speed gear shifting assembly is arranged inside the shell and comprises a circular support ring, a gear ring with an octagonal shaft, an octahedral gear shaft, a first transmission gear ring, a second transmission gear ring, a disc support frame, a fourth planetary gear, a fifth planetary gear, a sixth planetary gear, a second clamping rod and a second reduction spring, wherein the circular support ring is fixedly connected to the left inside of the shell, the middle of the circular support ring is rotatably connected with the octahedral gear shaft, the right of the octahedral gear shaft is rotatably connected with the gear ring with the octagonal shaft, the gear ring with the octagonal shaft is rotatably connected with the circular support ring, the first transmission gear ring is rotatably connected to the inside of the circular support ring, the second transmission gear ring is rotatably connected with the second transmission gear ring, the second transmission gear ring is rotatably connected with the transmission gear ring, the circular support frame is rotatably connected to the inside of the circular support ring, three fourth planetary gears are sequentially connected to the disc support frame from left to right, The three planetary gears five and three planetary gears six, planetary gear four and transmission ring gear first mesh, planetary gear five meshes with transmission ring gear two, planetary gear six meshes with the gear ring of taking the octahedral axis, planetary gear four, planetary gear five and planetary gear six all mesh with the octahedral gear axle, transmission ring gear two and take the octahedral axis gear ring inside all to be the mode sliding connection who distributes of circumference have five kelly two, wherein be connected with a pair of second reduction spring between five kelly two and the transmission ring gear two, be connected with a pair of second reduction spring between five kelly two in addition and take the octahedral axis gear ring.

Further, the gear shifting device comprises a pre-moving gear shifting assembly, the pre-moving gear shifting assembly is arranged on a circular support ring, the pre-moving gear shifting assembly comprises a missing gear, a screw rod, a transmission gear, a sliding circular ring, a limiting circular rod, a first return spring, a eight-sided shaft with a rod, a second return spring, a sliding eight-sided sleeve and an extrusion spring, the missing gear is fixedly connected to the outer part of an arc-shaped slotted gear ring, the screw rod is rotatably connected to the outer right side of the circular support ring, the transmission gear is fixedly connected to the screw rod, the right end of the screw rod is connected with the sliding circular ring in a threaded fit mode, the sliding circular ring is contacted with a special-shaped support shell, the limiting circular rod is fixedly connected to the outer right side of the circular support ring, the limiting circular rod is in sliding fit with the sliding circular ring, the first return spring is connected between the sliding circular support ring and the sliding spline gear shaft, the eight-sided shaft with the arc-shaped slotted gear ring, eight-sided axle of belting pole and slip ring contact are connected with three second return springs between eight-sided axle of belting pole and the arc fluting ring gear, and the inside slidingtype of arc fluting ring gear is connected with eight covers of slip, is connected with three extrusion springs between eight covers of slip and the arc fluting ring gear.

Further, still including the driving plate, the driving plate has been cup jointed on octahedral gear shaft left side, and the driving plate is connected with casing left side rotary type, and the driving plate is connected with circular support ring rotary type, driving plate and spline gear shaft slidingtype cooperation.

Further, the method comprises the following working steps:

s1, shifting the congested road: when a driver steps on an accelerator, the electromagnet is electrified to drive the N-shaped rack to move, the first homing spring is compressed, the N-shaped rack drives the adjusting gear and the upper device to rotate, the transmission ratio among the arc friction disc with the shaft, the friction wheel and the friction disc with the lug is changed, and the transmission efficiency is improved; when a driver looses the accelerator, the first return spring can return to drive the N-shaped rack and the upper device thereof to return after the electromagnet is powered off;

through the low-speed gear shifting assembly, the transmission ratio can be changed, the transmission efficiency is improved, and therefore stepless speed change can be achieved, the pause and frustration feeling during gear shifting is avoided, and the low-speed gear shifting assembly is suitable for the condition that a new energy automobile runs on a congested road section;

s2, normal driving gear shifting: a driver controls the electromagnet II to be electrified, the shifting fork shaft and the first reducing spring are compressed, the shifting fork shaft can push the octahedral sliding shaft to move, the second homing spring is compressed, the octahedral sliding shaft is not matched with the spline gear shaft any more, the octahedral sliding shaft is sleeved with the special-shaped slotted gear ring, the special-shaped slotted gear ring drives the spline gear shaft to rotate through the planet gear III, and the spline gear shaft transmits power to wheels of the new energy automobile;

through the automatic gear shifting assembly, automatic gear shifting can be performed when the new energy automobile normally runs, so that the transmission efficiency is improved, and the kinetic energy of the motor can be fully utilized;

s3, preactive: the arc-shaped slotted gear ring rotates and drives the sliding circular ring to move to push the eight-sided shaft with the rod to move, and the second return spring is compressed accordingly, so that the eight-sided shaft with the rod is sleeved inside the eight-sided gear shaft to drive the eight-sided gear shaft and the device on the eight-sided gear shaft to rotate, and the eight-sided gear shaft and the device on the eight-sided gear shaft move in advance;

the high-speed gear shifting assembly moves in advance by pre-moving the gear shifting assembly, so that the high-speed gear shifting assembly can shift gears better subsequently;

s4, high-speed driving gear shifting: the high-speed gear shifting assembly is matched with the pre-acting gear shifting assembly, when the second transmission gear ring and the device on the second transmission gear ring rotate at a high speed, the second reduction spring is compressed, the second clamping rod is clamped into the first transmission gear ring, and the first transmission gear ring drives the octahedral gear shaft and the device on the octahedral gear shaft to further rotate at an accelerated speed; when the automobile decelerates, the sliding ring resets under the action of the first return spring, and the octahedral shaft with the rod and the device on the octahedral shaft with the rod reset reversely.

Through the cooperation of high-speed subassembly and the pre-action subassembly of shifting for new energy automobile can shift automatically when going at a high speed, has avoided the feeling of seting down of mechanical shifting, thereby improves and drives experience.

Has the advantages that:

1. through the friction wheel, the friction wheel rotates and can let the drive ratio change between taking axle arc friction disc, friction wheel and the friction disc of taking the lug, improves transmission efficiency to can carry out infinitely variable, and make the speed of a motor vehicle change more steady, avoid the feeling of frustrating when shifting gears, be applicable to the condition that new energy automobile is traveling in the highway section that blocks up, avoided frequently shifting gears in the highway section that blocks up simultaneously and lead to equipment to damage.

2. Through the cooperation of octahedral sliding shaft and the device thereon, automatic gear shifting can be performed, so that the transmission efficiency is improved, the kinetic energy of the motor can be better utilized, and the energy consumption is effectively reduced.

3. Through the cooperation of taking the octahedral axle of pole and device on it for new energy automobile can be when high-speed traveling automatic gearshift, thereby makes new energy automobile progressively accelerate, has avoided the pause of mechanical gearshift to feel, not only can be energy-conserving, can also improve and drive experience.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a first partially cut-away perspective structure of the present invention.

Fig. 3 is a second partially sectional perspective view of the present invention.

Fig. 4 is a first partially cut-away perspective view of the automatic shifting assembly of the present invention.

Fig. 5 is a schematic partially cross-sectional, disassembled perspective view of the automatic shifting assembly of the present invention.

Fig. 6 is a partially disassembled perspective view of the automatic shifting assembly of the present invention.

Fig. 7 is a schematic perspective view of the special-shaped grooved gear ring of the present invention.

FIG. 8 is a schematic sectional perspective view of a splined gear shaft according to the present invention.

Fig. 9 is a second partially cross-sectional perspective view of the automatic shifting assembly of the present invention.

FIG. 10 is a partially cut-away perspective view of the low shift assembly of the present invention.

Fig. 11 is an enlarged perspective view of the present invention a.

FIG. 12 is a first partially schematic, pictorial illustration of the low speed shift assembly of the present invention.

FIG. 13 is a second partially schematic, pictorial illustration of the low speed shift assembly of the present invention.

Fig. 14 is a schematic sectional perspective view of the gearshift assembly of the present invention.

Fig. 15 is a third partially sectional perspective view of the present invention.

Fig. 16 is a schematic partial cross-sectional disassembled perspective view of the high speed shift assembly of the present invention.

Fig. 17 is a partial perspective view of the high speed shift assembly of the present invention.

Fig. 18 is a schematic perspective view of an octahedral gear shaft according to the present invention.

Fig. 19 is a partial perspective view of the present invention.

Fig. 20 is a schematic perspective view of the transmission disc of the present invention.

Fig. 21 is a first partially cut-away perspective view of the pre-shift assembly of the present invention.

Fig. 22 is a second partially cut-away perspective view of the pre-shift assembly of the present invention.

Fig. 23 is a partial perspective view of the pre-shift assembly of the present invention.

FIG. 24 is a schematic flow chart of the present invention.

Part names and serial numbers in the figure: 1-housing, 2-automatic gear shift assembly, 21-shaped support housing, 22-shaped slotted gear ring, 23-splined gear shaft, 24-arc slotted gear ring, 25-snap toothed gear ring, 26-annular support frame, 27-planetary gear I, 28-planetary gear II, 29-planetary gear III, 210-clamping rod I, 211-first return spring, 3-low speed gear shift assembly, 31-shaped slotted frame, 32-shaft arc friction disc, 33-second return spring, 34-arc support frame, 35-friction disc with lug, 36-rectangular slotted rotating frame, 37-friction wheel, 38-adjusting gear, 39-rectangular sliding rail block, 310-N type rack, 311-electromagnet I, 312-first return spring, 313-eight-sided sliding shaft, 314-second homing spring, 4-gear shifting component, 41-electromagnet II, 42-shifting fork shaft, 43-first reducing spring, 5-high-speed gear shifting component, 51-circular supporting ring, 52-gear ring with eight surfaces, 53-eight-sided gear shaft, 54-transmission gear ring I, 55-transmission gear ring II, 56-disc supporting frame, 57-planetary gear IV, 58-planetary gear V, 59-planetary gear VI, 510-clamping rod II, 511-second reducing spring, 7-pre-acting gear shifting component, 71-missing gear, 72-screw rod, 73-transmission gear, 74-sliding ring, 75-limiting circular rod, 76-first homing spring, 77-eight-surface shaft with rod, 78-second homing spring, 79-sliding octagon sleeve, 710-pressing spring, 8-driving disk.

Detailed Description

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.

Example 1

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, fig. 13, and fig. 14, the automatic gear shifting actuator for a new energy vehicle and the automatic gear shifting method for a new energy vehicle include a housing 1, an automatic gear shifting assembly 2, a low-speed gear shifting assembly 3, and a gear shifting assembly 4, wherein the automatic gear shifting assembly 2 is arranged inside the housing 1, the automatic gear shifting assembly 2 is used for automatic gear shifting, energy consumption is reduced, the low-speed gear shifting assembly 3 is arranged on the housing 1, the low-speed gear shifting assembly 3 is used for automatic gear shifting in congested road sections, the gear shifting assembly 4 is arranged on the automatic gear shifting assembly 2, and when the new energy vehicle runs in normal road sections, the gear shifting assembly 4 is used for automatic gear shifting.

The automatic gear shifting assembly 2 comprises a special-shaped supporting shell 21, a special-shaped slotted gear ring 22, a spline gear shaft 23, an arc-shaped slotted gear ring 24, a buckle gear ring 25, an annular supporting frame 26, a first planet gear 27, a second planet gear 28, a third planet gear 29, a first clamping rod 210 and a first return spring 211, wherein the special-shaped supporting shell 21 is connected inside a shell 1 through bolts, the special-shaped slotted gear ring 22 is rotatably connected on the right side inside the special-shaped supporting shell 21, the spline gear shaft 23 is connected inside the special-shaped slotted gear ring 22 through a bearing, the arc-shaped slotted gear ring 24 is connected on the left side inside the special-shaped supporting shell 21 through a bearing, the buckle gear ring 25 is rotatably connected outside the special-shaped slotted gear ring 22, the annular supporting frame 26 is rotatably connected inside the arc-shaped slotted gear ring 24, and the first planet gear 27 is rotatably connected on one side, close to the special-shaped slotted gear ring 22, the first planet gear 27 is meshed with the arc-shaped slotted gear ring 24, the second planet gear 28 is connected to the annular supporting frame 26 in a triangular rotating mode, the second planet gear 28 is located on the right side of the first planet gear 27, the second planet gear 28 is meshed with the buckle gear ring 25, the third planet gear 29 is connected to the annular supporting frame 26 in a triangular rotating mode, the third planet gear 29 is located on the right side of the second planet gear 28, the third planet gear 29 is meshed with the special-shaped slotted gear ring 22, the first planet gear 27, the second planet gear 28 and the third planet gear 29 are all meshed with the spline gear shaft 23, the sizes of the first planet gear 27, the second planet gear 28 and the third planet gear 29 are sequentially reduced, and five clamping rods 210 are connected to the inner portions of the special-shaped slotted gear ring 22 and the buckle gear ring 25 in a circumferential sliding mode, wherein a pair of first return springs 211 are connected between the five first clamping rods 210 and the special-shaped slotted gear ring 22, in addition, a pair of first return springs 211 is connected between the five first snap rods 210 and the buckle gear ring 25.

The low-speed gear shifting component 3 comprises a special-shaped opening frame 31, an arc friction disc 32 with a shaft, a second reset spring 33, an arc support frame 34, a friction disc 35 with a lug, a rectangular opening rotating frame 36, a friction wheel 37, an adjusting gear 38, a rectangular sliding rail block 39, an N-shaped rack frame 310, a first electromagnet 311, a first homing spring 312, an octahedral sliding shaft 313 and a second homing spring 314, wherein the special-shaped opening frame 31 is connected to the right side inside the shell 1 in a welding mode, the arc friction disc 32 with the shaft is rotatably connected to the right side of the shell 1, the arc friction disc 32 with the shaft is rotatably connected with the special-shaped opening frame 31, the second reset spring 33 is connected between the arc friction disc 32 with the shaft and the special-shaped opening frame 31, the pair of arc support frames 34 is connected to the right side inside the shell 1 through rivets, the arc support frames 34 are positioned on the left side of the special-shaped opening frame 31, the friction disc 35 with the lug is rotatably connected between the two arc support frames 34, one side of the friction disc 35 with the convex block, which is close to the arc-shaped friction disc 32 with the shaft, is in a circular table shape, the surface of the friction disc 35 with the convex block is rough, the left side of the special-shaped perforated frame 31 is rotatably connected with a pair of rectangular perforated rotating frames 36, the rectangular perforated rotating frames 36 are positioned between the friction disc 35 with the convex block and the arc-shaped friction disc 32 with the shaft, the middle part of the rectangular perforated rotating frames 36 is connected with a friction wheel 37 through a bearing, the surface of the friction wheel 37 is rough, the front side and the rear side of each rectangular perforated rotating frame 36 are fixedly connected with adjusting gears 38, the special-shaped perforated frame 31 is connected with a pair of rectangular sliding rail blocks 39 in a welding mode, the rectangular sliding rail blocks 39 are slidably connected with an N-shaped rack 310, the N-shaped rack 310 positioned on the front side is meshed with the two adjusting gears 38 positioned on the front side, the N-shaped rack 310 positioned on the rear side is meshed with the two adjusting gears 38 positioned on the rear side, and a magnet is arranged in the middle part of the N-shaped rack 310, an electromagnet I311 is fixedly connected inside the rectangular sliding rail block 39, the electromagnet I311 is magnetic after being electrified, the electromagnet I311 is in contact with an N-type rack 310, a first homing spring 312 is connected between the N-type rack 310 and the rectangular sliding rail block 39, an octahedral sliding shaft 313 is connected to the left side of the friction disc 35 with the convex block in a sliding mode, the octahedral sliding shaft 313 is sleeved inside the splined gear shaft 23, and two pairs of second homing springs 314 are connected between the octahedral sliding shaft 313 and the friction disc 35 with the convex block.

The gear shifting component 4 comprises a second electromagnet 41, a shifting fork shaft 42 and a first reducing spring 43, the second electromagnet 41 is fixedly connected to the top of the special-shaped support shell 21, the second electromagnet 41 is magnetic after being electrified, the shifting fork shaft 42 is connected to the upper portion of the special-shaped support shell 21 in a sliding mode, the shifting fork shaft 42 can be attracted after being electrified, the shifting fork shaft 42 is in sliding fit with the friction disc 35 with the convex blocks, the shifting fork shaft 42 is in contact with the octahedral sliding shaft 313, and the first reducing spring 43 is connected between the shifting fork shaft 42 and the special-shaped support shell 21.

The device is arranged in a gearbox of a new energy automobile, an external motor controls an arc friction disc 32 with a shaft and a device on the friction disc to rotate, the arc friction disc 32 with the shaft drives a friction disc 35 with a lug and the device on the friction disc to rotate through a friction wheel 37, an octahedral sliding shaft 313 directly transmits power to a spline gear shaft 23, the spline gear shaft 23 transmits the power to wheels, the device is in a low gear state at the initial state at the moment, the device is suitable for the situation that the new energy automobile runs in a congested road section, when a driver steps on an accelerator, an electromagnet 311 is electrified, as a magnet on an N-type rack 310 is electrified and then repelled with the electromagnet 311, the N-type rack 310 moves leftwards, a first homing spring 312 is compressed, the N-type rack 310 drives an adjusting gear 38 and the device on the adjusting gear to rotate, the transmission ratio among the arc friction disc 32 with the shaft, the friction wheel 37 and the friction disc 35 with the lug is changed, the transmission efficiency is improved, stepless speed change is achieved, the speed change is more stable, the pause and the frustration feeling during gear shifting are avoided, when a driver looses an accelerator, the first electromagnet 311 is powered off, and the first return spring 312 resets and drives the N-type rack 310 and the upper device to reset.

When the new energy automobile runs on a normal road section, a driver controls the electromagnet II 41 to be electrified in a cab during gear shifting, so that the electromagnet II 41 attracts the shifting fork shaft 42 leftwards, the first reducing spring 43 is compressed, the shifting fork shaft 42 pushes the octahedral sliding shaft 313 to move leftwards, the second homing spring 314 is compressed, the octahedral sliding shaft 313 is not matched with the spline gear shaft 23 due to the cylindrical through hole formed in the spline gear shaft 23, so that the octahedral sliding shaft 313 cannot transmit power to the spline gear shaft 23, the octahedral sliding shaft 313 is sleeved with the special-shaped grooved gear ring 22, the octahedral sliding shaft 313 transmits the power to the special-shaped grooved gear ring 22, the special-shaped grooved gear ring 22 drives the spline gear shaft 23 to rotate rapidly through the planet gear III 29, and the spline gear shaft 23 transmits the power to wheels of the new energy automobile, therefore, the gear can be automatically increased, and the purpose of automatic speed change can be achieved.

In the process of high-speed rotation of the special-shaped slotted gear ring 22 and the device on the special-shaped slotted gear ring 22, due to the action of centrifugal force, the first clamping rod 210 positioned on the inner side moves towards the periphery, the first return spring 211 positioned on the inner side is compressed accordingly, the first clamping rod 210 positioned on the inner side is clamped into the gear ring 25 with the buckle, the special-shaped slotted gear ring 22 can drive the gear ring 25 with the buckle and the device on the gear ring to rotate through the first clamping rod 210 positioned on the inner side, the gear ring 25 with the buckle can drive the spline gear shaft 23 and the device on the spline gear shaft to rotate more quickly through the second planet gear 28, the running speed of the new energy automobile enters the next gear, when the gear ring 25 with the buckle and the device on the gear ring rotate at an excessively high speed, the first clamping rod 210 positioned on the outer side moves towards the periphery, the first return spring 211 positioned on the outer side is compressed accordingly, and the first clamping rod 210 positioned on the outer side is clamped into the arc-shaped slotted gear ring 24, take buckle ring gear 25 can drive arc fluting ring gear 24 through the kelly 210 that is located the outside and rotate, arc fluting ring gear 24 then can drive spline gear shaft 23 through planetary gear 27 and rotate, because the number of teeth of arc fluting ring gear 24 is more, make spline gear shaft 23 and last device pivoted speed faster, thereby make new energy automobile's the speed of traveling reenter next gear, automatic gear shifting's purpose has been realized, and can not consume extra electric energy at the in-process of the speed of shifting the speed of speeding, the consumption of the energy has been saved.

Example 2

Based on embodiment 1, as shown in fig. 15, 16, 17, 18, 19, 21, 22 and 23, the present invention further includes a high-speed gear shifting assembly 5, the high-speed gear shifting assembly 5 is disposed inside the housing 1, the high-speed gear shifting assembly 5 is used for shifting gears during high-speed driving of the new energy automobile, the high-speed gear shifting assembly 5 includes a circular support ring 51, an octahedral shaft toothed ring 52, an octahedral shaft 53, a first transmission ring 54, a second transmission ring 55, a circular disc support frame 56, a fourth planetary gear 57, a fifth planetary gear 58, a sixth planetary gear 59, a second clamping bar 510 and a second reduction spring 511, the circular support ring 51 is connected to the left side inside the housing 1 by screws, the octahedral shaft 53 is connected to the middle part of the circular support ring 51 by a bearing, the octahedral shaft 53 is connected to the right part of the octahedral shaft 53 in a rotatable manner, the octahedral shaft toothed ring 52 is rotatably connected to the circular support ring 51, a first transmission gear ring 54 is rotatably connected inside the circular support ring 51, a second transmission gear ring 55 is rotatably connected outside the gear ring 52 with the eight-sided shaft, the second transmission gear ring 55 is rotatably connected with the first transmission gear ring 54, a disc support 56 is rotatably connected inside the circular support ring 51, three fourth planet gears 57, three fifth planet gears 58 and three sixth planet gears 59 are rotatably connected on the disc support 56 from left to right in sequence, the fourth planet gears 57 are meshed with the first transmission gear ring 54, the fifth planet gears 58 are meshed with the second transmission gear ring 55, the sixth planet gears 59 are meshed with the gear ring 52 with the eight-sided shaft, the fourth planet gears 57, the fifth planet gears 58 and the sixth planet gears 59 are all meshed with the eight-sided shaft 53, the sizes of the fourth planet gears 57, the fifth planet gears 58 and the sixth planet gears 59 are sequentially reduced, the second transmission gear ring 55 and the gear ring 52 with the eight-sided shaft are all connected with five clamping rods 510 in a sliding mode of circumferential distribution, a pair of second reducing springs 511 is connected between the five second clamping rods 510 and the second transmission gear ring 55, and a pair of second reducing springs 511 is connected between the five second clamping rods 510 and the gear ring 52 with the octahedral axis.

The pre-actuated gear shifting assembly 7 is arranged on the circular support ring 51, the pre-actuated gear shifting assembly 7 is used for enabling the high-speed gear shifting assembly 5 to move in advance and facilitating gear shifting better, the pre-actuated gear shifting assembly 7 comprises a gear lacking 71, a screw rod 72, a transmission gear 73, a sliding circular ring 74, a limiting circular rod 75, a first return spring 76, a rod-containing eight-sided shaft 77, a second return spring 78, a sliding eight-sided sleeve 79 and an extrusion spring 710, the outer part of the arc-shaped slotted gear ring 24 is connected with the gear lacking 71 in a welding mode, the right side of the outer part of the circular support ring 51 is connected with the screw rod 72 through a bearing, the transmission gear 73 is fixedly connected onto the screw rod 72, the right end of the screw rod 72 is connected with the sliding circular ring 74 in a threaded fit mode, the sliding circular ring 74 is in contact with the special-shaped support shell 21, the right side of the outer part of the circular support ring 51 is connected with the limiting circular rod 75 in a welding mode, limiting round rod 75 is in sliding fit with sliding ring 74, a first return spring 76 is connected between sliding ring 74 and circular support ring 51, spline gear shaft 23 is connected with eight-sided shaft 77 with rod in sliding manner, eight-sided shaft 77 with rod is in sliding fit with arc slotted gear ring 24, eight-sided shaft 77 with rod is in contact with sliding ring 74, three second return springs 78 are connected between eight-sided shaft 77 with rod and arc slotted gear ring 24, sliding eight-sided sleeve 79 is connected inside arc slotted gear ring 24 in sliding manner, and three extrusion springs 710 are connected between sliding eight-sided sleeve 79 and arc slotted gear ring 24.

In the process of rotating the arc-shaped slotted gear ring 24 and the device thereon, each rotation of the arc-shaped slotted gear ring 24 drives the transmission gear 73 and the device thereon to rotate for twelve minutes, the sliding ring 74 moves leftwards through the matching of the screw rod 72 and the sliding ring 74, the first return spring 76 is compressed, the sliding ring 74 pushes the eight-sided shaft with rod 77 to move leftwards, the second return spring 78 is compressed, the eight-sided shaft with rod 77 is sleeved inside the eight-sided gear shaft 53, the eight-sided shaft with rod 77 can drive the eight-sided gear shaft 53 and the device thereon to rotate, the eight-sided gear shaft 53 and the device thereon can move in advance, the subsequent work can be better, after a period of time, the eight-sided shaft with rod 77 pushes the sliding eight-sided sleeve 79 to move leftwards, the extrusion spring 710 is compressed, the sliding eight-sided sleeve 79 can be sleeved outside the eight-sided gear ring 52, the sliding eight-face sleeve 79 can drive the eight-face gear ring 52 and the device thereon to rotate, the eight-face gear ring 52 can drive the eight-face gear shaft 53 to rotate through the planet gear six 59, the eight-face gear shaft 53 can drive the spline gear shaft 23 to rotate and transmit power to wheels, and the purpose of speed change is achieved, when the eight-face gear ring 52 and the device thereon rotate rapidly, due to the effect of centrifugal force, the clamping rod II 510 positioned on the inner side can move towards the periphery, the second reducing spring 511 positioned on the inner side can be compressed accordingly, so that the clamping rod II 510 positioned on the inner side can be clamped into the transmission gear ring II 55, the transmission gear ring II 55 can drive the eight-face gear shaft 53 and the device thereon to rotate more rapidly through the planet gear five 58, when the transmission gear ring II 55 and the device thereon rotate at high speed, the clamping rod II 510 positioned on the outer side can move towards the periphery, and the second reducing spring 511 positioned on the outer side can be compressed accordingly, the second clamping rod 510 positioned on the outer side is clamped into the first transmission gear ring 54, the first transmission gear ring 54 drives the octahedral gear shaft 53 and the device on the octahedral gear shaft to further accelerate through the fourth planetary gear 57, when the automobile decelerates, the sliding ring 74 resets under the action of the first return spring 76, the eight-sided shaft with rod 77 and the device on the eight-sided shaft with rod reset reversely, the rotating speed of the octahedral gear shaft 53 is gradually accelerated in the process, the eight-sided gear shaft with rod is suitable for a new energy automobile running at high speed, the purpose of automatic gear shifting is achieved, and the pause and frustration of mechanical gear shifting is avoided.

Example 3

On embodiment 2's basis, as shown in fig. 2 and 20, still including driving plate 8, eight face gear shaft 53 left side has cup jointed driving plate 8, and driving plate 8 is connected with casing 1 left side rotary type, and driving plate 8 is connected with circular support ring 51 rotary type, and driving plate 8 and spline gear shaft 23 sliding type fit pass through driving plate 8, are convenient for transmit power better.

Through the driving plate 8, the power of the octahedral gear shaft 53 and the spline gear shaft 23 can be transmitted to the wheels, so that the power can be transmitted better, and the new energy automobile can run better.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.