A vehicle electronic differential and vehicle

Abstract

The invention discloses a vehicle electronic differential, including a trigger mechanism and an actuator, wherein the trigger mechanism includes an electromagnet and a fixed block spaced axially; the actuator includes a sliding block, a combined toothed disc and an elastic member, wherein the combined toothed disc is embedded and fixed to the inner ring of the sliding block and is locked with the housing of the differential in the circumferential direction, the combined toothed disc and the right half-shaft gear of the differential are spaced axially, and the elastic member is clamped between the combined toothed disc and the right half-shaft gear; when the trigger mechanism is not triggered, the sliding block and the fixed block are clamped in the circumferential direction through a convex structure with a guiding function and rotate synchronously with the housing; when the trigger mechanism is triggered, the electromagnet is energized and attracts and locks the fixed block, and the sliding block rotates dislocated and moves toward the right half-shaft gear in the axial direction until it is locked and connected with the right half-shaft gear and presses the elastic member. The invention realizes the locking of the differential through the action of the contacting fixed block and the sliding block, and has a compact structure, a short action stroke and improves the triggering speed.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle equipment, and in particular to a vehicle electronic differential and a vehicle. Background Art

[0002] Differentials are widely used in vehicle transmission systems. Their main function is to adjust the speed difference between the left and right wheels to meet the needs of different wheels when turning or driving on uneven roads. When the vehicle is driving on ordinary and good roads, the performance of existing differentials can meet normal driving needs. When a car is driving on a bad road, such as when one of the wheels of the car is stuck in a muddy road, although the wheel on the other side is flat, the wheel stuck in the mud has no adhesion and slips and spins in place, the power is consumed and cannot get out of trouble, causing the car to be unable to move forward. At this time, the driver needs to start the electronic differential with a locking actuator to lock the wheels on both sides of the car, so that the differential loses its differential function and transmits the torque to the wheels with adhesion, so that the vehicle obtains greater driving force, thereby improving the vehicle's ability to get out of trouble; but currently, due to the limited internal space of the rear axle housing and the main reducer housing, the trigger mechanism and the locking mechanism of the electronic differential lock need to be respectively arranged on both sides of the differential housing, and the corresponding mechanical structure from the trigger end to the actuator end is relatively long, and a series of transmission structures such as a relatively long guide column need to be used for action transmission before differential locking can be performed, and the response time is slow; at the same time, the setting of the guide column requires the processing of a guide mounting hole with a relatively high depth on the differential housing, and the matching precision of the guide column and the mounting hole is high, and the processing and assembly are both difficult.

[0003] Therefore, how to improve the locking triggering speed of the electronic differential and reduce its assembly difficulty and cost is a problem that technical personnel in this field need to solve urgently. Summary of the invention

[0004] In view of this, an object of the present invention is to provide an electronic differential with fast locking triggering speed and low assembly difficulty.

[0005] Another object of the present invention is to provide a vehicle comprising the electronic differential.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A vehicle electronic differential comprises a trigger mechanism and an actuator, wherein the trigger mechanism comprises an electromagnet and a fixing block arranged axially at intervals, and the electromagnet is fixedly arranged;

[0008] The actuator includes a sliding block, a combined toothed disc and an elastic member, wherein the combined toothed disc is embedded and fixed to the inner ring of the sliding block and is locked with the housing of the differential in the circumferential direction, the combined toothed disc and the right half-shaft gear of the differential are spaced apart in the axial direction, and the elastic member is sandwiched between the combined toothed disc and the right half-shaft gear;

[0009] When the trigger mechanism is not triggered, the sliding block and the fixed block are clamped in the circumferential direction by a protruding structure with a guiding function and rotate synchronously with the shell; when the trigger mechanism is triggered, the electromagnet is energized and attracts and locks the fixed block, and the sliding block rotates in an offset manner and moves axially toward the right half-shaft gear until it is locked and connected with the right half-shaft gear and presses the elastic member.

[0010] Preferably, in the above-mentioned vehicle electronic differential, the combined sprocket and the sliding block are fixedly connected to form an integrated structure by a plurality of connecting screws uniformly arranged along the circumferential direction.

[0011] Preferably, in the above-mentioned vehicle electronic differential, a avoidance hole is opened on the housing, the avoidance hole is in an oblong hole configuration and corresponds one-to-one with the connecting screws, and the connecting screws are located in the avoidance hole during the axial movement of the sliding block.

[0012] Preferably, in the above-mentioned vehicle electronic differential, when the trigger mechanism is not triggered, the coupling sprocket is provided with a plurality of raised steps with the same raised height on the side facing away from the right half-shaft gear and in contact with the housing.

[0013] Preferably, in the above-mentioned vehicle electronic differential, a wedge-shaped protrusion is provided on the end face of the sliding block, and a wedge-shaped recess is provided on the end face of the fixed block. When the trigger mechanism is not triggered, the wedge-shaped protrusion and the wedge-shaped recess are clamped to make the sliding block and the fixed block rotate synchronously.

[0014] Preferably, in the above-mentioned vehicle electronic differential, when the trigger mechanism is not triggered, the axial distance between the electromagnet and the fixing block is no more than 0.5 mm.

[0015] Preferably, in the above-mentioned vehicle electronic differential, one end of the electromagnet facing away from the fixing block is assembled and connected to the bearing end cover, and a retaining spring is provided on the housing and abuts against the bearing end cover through the retaining spring.

[0016] Preferably, in the above-mentioned vehicle electronic differential, the disc surface of the coupling sprocket facing the right half-shaft gear is provided with end face teeth, and the right half-shaft gear is correspondingly provided with a connecting groove. When the trigger mechanism is triggered, the coupling sprocket moves to the position where the end face teeth are engaged in the connecting groove to lock with the right half-shaft gear.

[0017] Preferably, in the above-mentioned vehicle electronic differential, a plurality of connecting teeth are evenly arranged on the outer periphery of the coupling sprocket, and a protrusion is arranged on the inner wall of the housing to mesh with the coupling sprocket.

[0018] The present invention also provides a vehicle, which includes the vehicle electronic differential provided by any of the above embodiments.

[0019] It can be seen from the above technical scheme that the vehicle electronic differential provided by the present invention includes a trigger mechanism and an actuator, wherein the trigger mechanism includes an electromagnet and a fixed block arranged at intervals in the axial direction, the electromagnet is fixedly arranged in the differential to attract and lock the fixed block when energized, so that the fixed block produces a displacement action toward the electromagnet; the actuator includes a sliding block, a combined toothed disc and an elastic member, wherein the combined toothed disc is embedded in the inner ring of the sliding block and is fixedly arranged with the sliding block to move synchronously, and at the same time, the combined toothed disc is locked with the housing of the differential in the axial direction, so that the sliding block, the combined toothed disc and the housing can perform synchronous rotation in the axial direction, and inside the differential, the combined toothed disc and the right half-shaft gear of the differential are arranged at intervals in the axial direction, and the elastic member is clamped between the combined toothed disc and the right half-shaft gear; the action process and the matching relationship between the trigger mechanism and the actuator are specifically as follows: when the vehicle is operating normally, the trigger mechanism is not triggered, the sliding block and the fixed block are clamped in the circumferential direction through a protruding structure with a guiding function to rotate synchronously with the housing, and at this time the electronic differential The device only has the function of an ordinary differential. When the vehicle turns and a differential occurs, the left half-shaft gear, the right half-shaft gear and the planetary gear inside the differential can rotate freely and independently to realize the differential function. When the tires of the driving vehicle slip, the operator instructs the trigger mechanism to act, the electromagnet is energized and attracts and locks the fixed block, the fixed block stops rotating, and the sliding block is separated from the fixed block. However, due to the guiding protrusion structure on the circumference of the sliding block and the fixed block, the sliding block is misaligned with the fixed block during rotation, and moves away from the fixed block and toward the right half-shaft gear under the guiding action until it is locked and connected with the right half-shaft gear and compresses the elastic member. At this time, the gear plate, the housing, the right half-shaft gear and the sliding block are completely connected as a whole and are in a locked state. The structure and the left half-shaft gear and the planetary gear cannot rotate freely and independently, so that the rotation speed of the left and right wheels of the vehicle is consistent, so that the tires of the vehicle recover adhesion and get out of trouble. At the same time, after the vehicle is out of trouble, the power supply of the electromagnet is stopped, and the elastic member in the compressed state drives the sliding block to separate from the right half-shaft gear and re-clamp with the fixed block, and the electronic differential recovers the differential function.The electronic differential provided by the present invention arranges the trigger mechanism and the actuator on the same side of the electronic differential through structural design, and realizes the locking of the electronic differential through the movement of the sliding block in the axial direction. The sliding block is specifically clamped with the circumference of the fixed block through a protruding structure with a guiding function to realize assembly connection, so that when the sliding block is attracted by the electromagnet to lock the fixed block, it is dislocated and rotated to move toward the right half-shaft gear through the guiding function of the protruding structure, thereby clamping and locking the right half-shaft gear and the housing, so that the differential function of the electronic differential is invalidated, and effective torque is provided for the tire on a good road surface. After the vehicle is out of trouble, the electromagnet loses power and unlocks the fixed block, and the sliding block can unlock the right half-shaft gear under the elastic force of the elastic member to restore the differential function of the electronic differential. The whole action process is continuous and responsive, and there is no need to perform excessive processing on the housing, thereby reducing production and assembly costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 An exploded view of the structure of an electronic differential provided by an embodiment of the present invention;

[0022] Figure 2 is a cross-sectional schematic diagram of the electronic differential in a differential unlocked state;

[0023] Figure 3 is a cross-sectional schematic diagram of the electronic differential in a differential locking state;

[0024] Figure 4 It is a partial exploded view of the locking mechanism;

[0025] Figure 5 It is a schematic diagram of the unlocked state of the locking mechanism;

[0026] Figure 6 It is a schematic diagram of the locking state of the locking mechanism;

[0027] Figure 7 It is a schematic diagram of the structure of the combined toothed disc;

[0028] Among them, 10-electromagnet; 20-fixed block; 210-wedge-shaped depression; 30-sliding block; 310-wedge-shaped protrusion; 40-combined gear plate; 410-protruding step; 420-connecting tooth; 430-end face tooth; 50-elastic member; 60-housing; 610-avoidance hole; 620-circlip; 70-right half-shaft gear; 80-connecting screw; 90-bearing end cover; 100-left half-shaft gear; 200-planetary gear. DETAILED DESCRIPTION

[0029] The core of the present invention is to disclose an electronic differential with fast locking triggering speed and low assembly difficulty.

[0030] Another core of the present invention is to provide a vehicle including the above-mentioned electronic differential.

[0031] In order to make the technical personnel in this field better understand the scheme of the present invention, the embodiments of the present invention are described below with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the content of the invention recorded in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary for the solutions of the invention recorded in the claims.

[0032] like Figure 1-7 As shown, the vehicle electronic differential provided by the embodiment of the present invention includes a trigger mechanism and an actuator, wherein the trigger mechanism includes an electromagnet 10 and a fixed block 20 spaced apart in the axial direction, and the electromagnet 10 is fixedly arranged in the differential to attract and lock the fixed block 20 when energized, so that the fixed block 20 generates a displacement action toward the electromagnet 10.

[0033] The actuator includes a sliding block 30, a coupling toothed disc 40 and an elastic member 50, wherein the coupling toothed disc 40 is embedded in the inner ring of the sliding block 30 and is fixedly arranged with the sliding block 30 to move synchronously, and at the same time, the coupling toothed disc 40 is locked with the housing 60 of the differential in the axial direction, so that the sliding block 30, the coupling toothed disc 40 and the housing 60 can perform synchronous rotation in the axial direction, and inside the differential, the coupling toothed disc 40 and the right half-shaft gear 70 of the differential are spaced apart in the axial direction, and the elastic member 50 is sandwiched between the coupling toothed disc 40 and the right half-shaft gear 70.

[0034] The action process and coordination relationship between the trigger mechanism and the actuator are as follows: when the vehicle is operating normally, the trigger mechanism is not triggered, and the sliding block 30 and the fixed block 20 are clamped in the circumferential direction by a protruding structure with a guiding function so as to rotate synchronously with the housing 60. At this time, the electronic differential only has the function of an ordinary differential. When a differential occurs when the vehicle turns, the left half-shaft gear 100, the right half-shaft gear 70 and the planetary gear 200 inside the differential can rotate freely and independently to realize the differential function.

[0035] When the tires of the vehicle slip, the operator instructs the trigger mechanism to operate, the electromagnet 10 is energized and attracts and locks the fixed block 20, the fixed block 20 stops rotating, and the sliding block 30 is separated from the fixed block 20. However, due to the guiding protrusion structure on the circumference of the sliding block 30 and the fixed block 20, the sliding block 30 is misaligned with the fixed block 20 during rotation, and moves away from the fixed block 20 and toward the right half-shaft gear 70 under the guiding action, until it is locked and connected with the right half-shaft gear 70 and the elastic member 50 is compressed. 40, the housing 60, the right half-shaft gear 70 and the sliding block 30 are completely connected as a whole and are in a locked state. This structure and the left half-shaft gear 100 and the planetary gear 200 cannot rotate freely and independently, so that the rotation speeds of the left and right wheels of the vehicle are consistent, so that the tires of the vehicle can restore adhesion and get out of trouble. At the same time, after the vehicle is out of trouble, the power supply to the electromagnet 10 is stopped, and the elastic member 50 in a compressed state will drive the sliding block 30 to separate from the right half-shaft gear 70 and re-engage with the fixed block 20, and the electronic differential will restore the differential function.

[0036] It should be noted that the elastic member 50 is preferably a spring with low cost and stable structure, and the elastic coefficient of the spring only needs to be sufficient to push the sliding block 30 back and engage with the fixed block 20 after the electromagnet 10 loses power.

[0037] The electronic differential provided by the embodiment of the present invention sets the trigger mechanism and the actuator on the same side of the electronic differential through structural design, and realizes the locking of the electronic differential through the movement of the sliding block 30 in the axial direction. The sliding block 30 is specifically clamped with the circumference of the fixed block 20 through a protruding structure with a guiding function to realize assembly connection, so that when the sliding block 30 is attracted and locked by the electromagnet 10, the sliding block 30 is dislocated and rotated to move toward the right half-shaft gear 70 through the guiding effect of the protruding structure, thereby clamping and locking the right half-shaft gear 70 and the housing 60, so that the differential function of the electronic differential is invalid, and effective torque is provided for the tire on a good road surface. After the vehicle is out of trouble, the electromagnet 10 loses power and unlocks the fixed block 20, and the sliding block 30 can unlock the right half-shaft gear 70 under the elastic force of the elastic member 50 to restore the differential function of the electronic differential. The whole action process is interrupted and responsive, and there is no need to perform excessive processing on the housing 60. Compared with the prior art, high-precision component assembly is not required, thereby reducing production and assembly costs.

[0038] In some embodiments of the present invention, in order to ensure the connection effect between the combined toothed disk 40 and the sliding block 30 and reduce the difficulty of assembly, the combined toothed disk 40 is evenly provided with a plurality of mounting holes in its circumference, and the sliding block 30 is correspondingly provided with the same number of holes. The combined toothed disk 40 and the sliding block 30 are fixedly connected to form an integral structure by a plurality of connecting screws 80. The connecting screws 80 can ensure an effective connection, and the threaded matching method is adopted to facilitate disassembly and assembly.

[0039] It should be noted that since the coupling toothed disc 40 and the sliding block 30 are mostly annular structures, in order to ensure their stability during rotation, at least three connecting screws 80 are provided and are evenly arranged around the circumference of the coupling toothed disc 40, so that a single connecting screw 80 bears a smaller torque and ensures the connection effect.

[0040] In order to further optimize the above technical solution, in the electronic differential provided in the embodiment of the present invention, an avoidance hole 610 is opened on the housing 60. The avoidance hole 610 is preferably in the shape of an oblong hole and corresponds one-to-one with the connecting screw 80, that is, each connecting screw 80 is correspondingly provided with a corresponding avoidance hole 610, and the connecting screw 80 is arranged through the avoidance hole 610, so that the combined toothed disc 40 and the sliding block 30 can be pre-inserted when the differential is assembled, and the connecting screw 80 is fastened through the position of the avoidance hole 610. At the same time, the hole length direction of the avoidance hole 610 is opened along the axial direction of the sliding block 30. During the axial movement of the sliding block 30, the connecting screw 80 is located in the avoidance hole 610. The opening of the avoidance hole 610 on the housing 60 is simple and has low precision requirements. Compared with the prior art, it has low processing difficulty and provides a good avoidance space for the movement of the connecting screw 80 to meet the use of the connecting screw 80.

[0041] Considering that when the trigger mechanism is not triggered, the sliding block 30 and the fixed block 20 are in a clamped state, the coupling sprocket 40 will contact the inner wall surface of the housing 60 at this time, and will be separated from the inner wall surface of the housing 60 when the trigger mechanism is triggered. Since the lubricating oil will form an oil film between the coupling sprocket 40 and the inner wall of the housing 60 during the operation of the electronic differential, making the connection and separation not smooth, in some embodiments of the present invention, a plurality of raised steps 410 are provided on the disc surface area of ​​the coupling sprocket 40 on the side facing away from the right half-shaft gear 70. The raised steps 410 have the same raised height based on the disc surface of the coupling sprocket 40 and are arranged at intervals. The coupling sprocket 40 contacts the housing 60 through the raised steps 410 to reduce the contact area, thereby reducing the separation force between the coupling sprocket 40 and the housing 60.

[0042] As for the connecting structure with a guiding function between the sliding block 30 and the fixed block 20, in some embodiments of the present invention, a wedge-shaped protrusion 310 is provided on the end surface of the sliding block 30 to form a V-shaped guiding structure, and correspondingly, a wedge-shaped recess 210 is provided on the end surface of the fixed block 20. When the trigger mechanism is not triggered, the wedge-shaped protrusion 310 and the wedge-shaped recess 210 are tightly matched, so that the sliding block 30 and the fixed block 20 rotate synchronously; at the same time, when the trigger mechanism is triggered, the fixed block 20 is attracted by the electromagnet 10. The sliding block 30 is locked, while the sliding block 30 keeps rotating, and under the misalignment of the wedge structure, an axial driving force is generated to drive the sliding block 30 to move toward the right half-shaft gear 70, and engage with the right half-shaft gear 70. Furthermore, in order to improve the stable cooperation between the sliding block 30 and the fixed block 20 and the stability of the separation process, it is preferred that at least three wedge-shaped protrusions 310 are evenly arranged on the end face of the sliding block 30 to respectively bear the locking effect and torsional force of partial areas, thereby improving the stability of the action process.

[0043] It needs to be further explained that the connecting structure with guiding function on the sliding block 30 and the fixed block 20 can also be designed as a wave configuration or a sawtooth configuration with a certain slope, which can simultaneously play a locking effect and generate an axial driving force during relative rotation. This article will not go into details here.

[0044] In order to improve the locking triggering speed of the electronic differential, the axial spacing between the electromagnet 10 and the fixed block 20 is not greater than 0.5 mm, so as to ensure that the fixed block 20 and the electromagnet 10 are in a separated state, and rotate synchronously with the sliding block 30 during normal differential operation. At the same time, the shorter distance allows the fixed block 20 to be quickly attracted when the electromagnet 10 is energized to lock the right half-shaft gear 70.

[0045] Furthermore, in order to maintain the stable state of the electromagnet 10, the electromagnet 10 is installed in the housing 60 of the reducer through a small bracket welded on its outer circle, and at the same time, the end of the electromagnet 10 facing away from the fixed block 20 is assembled and connected with the bearing end cover 90, and the bearing end cover 90 is in contact with the retaining spring 620 assembled on the housing 60 to limit the axial movement of the electromagnet 10, so that the circumferential rotational movement and axial movement of the electromagnet 10 at any time are restricted and completely fixed in the electronic differential; at the same time, at the position of the fixed block 20, the end face of one end of the fixed block 20 is engaged with the sliding block 30, and the inner small end face of the other end of the fixed block 20 is assembled with the end face bearing, and the other end of the end face bearing cooperates with the bearing end cover 90 to limit the axial movement of the fixed block 20, and the outer large end face of the side where the fixed block 20 cooperates with the end face bearing cooperates with the electromagnet 10 to form a trigger mechanism of the electronic differential.

[0046] The locking connection of the coupling toothed disc 40 to the right half-shaft gear 70 can be achieved by means of protruding engagement, press-fit braking, etc. In some embodiments of the present invention, end face teeth 430 are provided on the disk area of ​​the coupling toothed disc 40 on the side facing the right half-shaft gear 70, and preferably the end face teeth 430 are evenly distributed on the disk surface, while the right half-shaft gear 70 is correspondingly provided with connecting grooves. When the trigger mechanism is triggered, the coupling toothed disc 40 moves toward the right half-shaft gear 70 until each end face tooth 430 is engaged with the connecting groove, so that the sliding block 30 and the right half-shaft gear 70 are locked and connected as an integrated structure and rotate synchronously.

[0047] The coupling toothed disc 40 is continuously locked with the housing 60 in its circumferential direction so as to maintain a synchronous rotation state with the housing 60. Specifically, in some embodiments of the present invention, a plurality of connecting teeth 420 are evenly arranged on the outer circumference of the coupling toothed disc 40, and the edge of the connecting tooth 420 is designed as an arc structure to avoid the risk of stress concentration caused by rigid contact, and the inner wall of the housing 60 is provided with a plurality of protrusions, and each connecting tooth 420 is correspondingly inserted into the recess between two adjacent protrusions, so that the coupling toothed disc 40 is meshed and connected with the housing 60. At this time, the coupling toothed disc 40 and the housing 60 are rotationally locked in the circumferential direction, and the coupling toothed disc 40 can only move in the axial direction relative to the housing 60; and it should be noted that when the coupling toothed disc 40 is engaged and locked with the right half-shaft gear 70, the connecting teeth 420 on the outer circumference of the coupling toothed disc 40 are still partially meshed with the housing 60, so that the coupling toothed disc 40, the right half-shaft gear 70 and the housing 60 are connected as an integrated structure.

[0048] An embodiment of the present invention further provides a vehicle, which uses the vehicle electronic differential provided by any of the above embodiments. When the vehicle tires slip, the driver sends a command to the trigger mechanism, the electromagnet 10 is energized, and the actuator is activated to lock the electronic differential so that the various parts inside the differential cannot rotate freely and independently, thereby providing torque for the tires on a good road surface, so that the vehicle can restore adhesion and get out of trouble. After the vehicle is out of trouble, the driver no longer needs the locking function of the electronic differential. At this time, a command is sent to de-energize the electromagnet 10, reset the actuator, and restore the differential function of the electronic differential.

[0049] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0050] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle electronic differential, characterized in that: It includes a trigger mechanism and an actuator, wherein the trigger mechanism includes an electromagnet and a fixing block which are axially spaced apart, and the electromagnet is fixedly arranged; The actuator includes a sliding block, a combined toothed disc and an elastic member, wherein the combined toothed disc is embedded and fixed to the inner ring of the sliding block and is locked with the housing of the vehicle electronic differential in the circumferential direction, the combined toothed disc and the right half-shaft gear of the vehicle electronic differential are spaced apart in the axial direction, and the elastic member is sandwiched between the combined toothed disc and the right half-shaft gear; When the trigger mechanism is not triggered, the sliding block and the fixed block are clamped in the circumferential direction by the protruding structure with a guiding function and rotate synchronously with the housing; when the trigger mechanism is triggered, the electromagnet is energized and attracts and locks the fixed block, and the sliding block rotates in an offset manner and moves axially toward the right half-shaft gear until it is locked and connected with the right half-shaft gear and presses the elastic member; The combined toothed disc and the sliding block are fixedly connected to form an integral structure by a plurality of connecting screws evenly arranged along the circumference; an avoidance hole is opened on the shell, and the avoidance hole is an oblong hole configuration and corresponds one-to-one to the connecting screws, and the connecting screws are located in the avoidance hole during the axial movement of the sliding block; the sliding block is sleeved on the outer wall of the shell.

2. The vehicle electronic differential according to claim 1, characterized in that: When the trigger mechanism is not triggered, the coupling toothed disc is provided with a plurality of raised steps with the same raised height on the side facing away from the right half-shaft gear and in contact with the housing.

3. The vehicle electronic differential according to claim 1, characterized in that: A wedge-shaped protrusion is arranged on the end surface of the sliding block, and a wedge-shaped recess is arranged on the end surface of the fixed block. When the trigger mechanism is not triggered, the wedge-shaped protrusion and the wedge-shaped recess are clamped to make the sliding block and the fixed block rotate synchronously.

4. The vehicle electronic differential according to claim 1, characterized in that: When the trigger mechanism is not triggered, the axial distance between the electromagnet and the fixing block is no greater than 0.5 mm.

5. The vehicle electronic differential according to claim 4, characterized in that: One end of the electromagnet facing away from the fixing block is assembled and connected with the bearing end cover, and a retaining spring is provided on the housing and abuts against the bearing end cover through the retaining spring.

6. The vehicle electronic differential as claimed in claim 1, characterized in that: The disc surface of the coupling toothed disc facing the right half-shaft gear is provided with end face teeth, and the right half-shaft gear is correspondingly provided with a connecting groove. When the trigger mechanism is triggered, the coupling toothed disc moves to the position where the end face teeth are inserted into the connecting groove to lock with the right half-shaft gear.

7. The vehicle electronic differential according to any one of claims 1 to 6, characterized in that: A plurality of connecting teeth are evenly arranged on the outer circumference of the coupling toothed disc, and a protrusion is arranged on the inner wall of the shell body to mesh with the coupling toothed disc.

8. A vehicle, characterized in that: The invention comprises a vehicle electronic differential as claimed in any one of claims 1 to 7.

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