CN216783479U - Braking system of vehicle and vehicle - Google Patents

Abstract

The utility model provides a braking system and vehicle of vehicle relates to vehicle technical field, especially relates to the autopilot field and drives the test field. Wherein, the braking system of vehicle includes: a drive assembly; the driving part is in transmission connection with the driving assembly so as to enable the driven part to move along a first moving direction under the first driving action of the driving assembly; the first moving part is fixedly connected with the driven part; the second moving part is configured to move along the first moving direction under the action of the first moving part; and the brake assembly is arranged on the second moving member and moves from the brake position to the release position under the condition that the second moving member moves along the first moving direction. According to the brake system of the vehicle, the normal running of the vehicle such as an automatic driving vehicle can be ensured, and the running reliability of the vehicle is improved.

Description

Braking system of vehicle and vehicle

Technical Field

The utility model relates to a vehicle technical field especially relates to autopilot field and driving test field, concretely relates to braking system and vehicle of vehicle.

Background

In the related art, the automatic driving technology is a technology for automatically and safely operating a motor vehicle by means of cooperation of artificial intelligence, visual calculation, radar, a monitoring device, and a global positioning system. Before an autonomous vehicle leaves a factory, a large number of tests and trials are usually required to ensure the reliability of the autonomous driving technology.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a brake system of a vehicle and the vehicle.

According to an aspect of the present disclosure, there is provided a braking system of a vehicle, including: a drive assembly; the driving part is in transmission connection with the driving assembly so as to enable the driven part to move along a first moving direction under the first driving action of the driving assembly; the first moving piece is fixedly connected with the driven piece; the second moving part is configured to move along the first moving direction under the action of the first moving part; and the brake assembly is arranged on the second moving member and moves from the brake position to the release position under the condition that the second moving member moves along the first moving direction.

In one embodiment, the driving member is further configured to move the driven member in a second moving direction under a second driving action of the driving assembly, wherein the second moving direction is opposite to the first moving direction.

In one embodiment, the driving member includes a first lead screw, the driven member includes a first nut, the first nut and the first moving member are both sleeved on the first lead screw, and under a first driving action of the driving assembly, the first lead screw rotates in a first rotating direction so that the first nut drives the first moving member to move in a first moving direction; the braking system further includes: one end of the first screw rod is rotatably arranged on the first fixing plate; the second fixing plate is arranged at an interval with the first fixing plate, the other end of the first screw rod is rotatably arranged on the second fixing plate, and the first nut and the first moving piece are located between the first fixing plate and the second fixing plate.

In one embodiment, the braking system further includes: the second screw rod is parallel to the first screw rod, one end of the second screw rod is rotatably arranged on the first fixing plate, and the other end of the second screw rod is rotatably arranged on the second fixing plate; the second nut is fixed on the second moving piece, the second nut and the second moving piece are sleeved on the second screw rod, the second nut and the second moving piece are located between the first fixing plate and the second fixing plate, and the second screw rod rotates in the first rotating direction under the condition that the second moving piece drives the second nut to move in the first moving direction.

In one embodiment, the driving member further includes a third screw, the driven member further includes a third nut, the third screw is sleeved on the third screw, under a first driving action of the driving assembly, the third screw rotates in the first rotating direction so that the third nut drives the first moving member to move in the first moving direction, and the third screw and the first screw are respectively located on two sides of the second screw.

In one embodiment, the braking system further includes: the power accumulating assembly is arranged to store energy under the pushing of the second moving part; and under the condition that the power accumulating assembly releases energy, the energy accumulating assembly acts on the second moving member to enable the second moving member to move along a second moving direction so as to drive the brake assembly to move from the release position to the brake position, wherein the second moving direction is opposite to the first moving direction.

In one embodiment, the braking system further includes: the other end of the second screw rod penetrates through the second fixing plate to be connected with the adsorption part, and the adsorption part and the second screw rod are relatively fixed in the circumferential direction; the power storage assembly comprises an electromagnet, the electromagnet is arranged on one side of the adsorption piece, which is far away from the second fixing plate, and the electromagnet adsorbs the adsorption piece under the condition that the electromagnet is in a power-on state, so that the brake assembly is kept at a release position; under the condition that the electromagnet is in the power-off state, the electromagnet releases the adsorption piece so as to enable the second moving piece to move along the second moving direction and drive the brake assembly to move from the release position to the brake position.

In one embodiment, one of the second fixed plate and the second moving member is provided with a detection device, and the other of the second fixed plate and the second moving member is provided with a sensing member, wherein the electromagnet is in a powered-on state under the condition that the distance between the detection device and the sensing member is greater than a preset distance and the vehicle is powered on; and under the condition that the distance between the detection device and the sensing piece is smaller than or equal to the preset distance or the vehicle is powered off, the electromagnet is in a power-off state.

In one embodiment, the braking system further includes: the third fixing plate is arranged on one side, far away from the first fixing plate, of the second fixing plate, and the electromagnet is located between the third fixing plate and the second fixing plate; the fastener penetrates through the third fixing plate and is connected with the electromagnet; the elastic piece is sleeved on the fastening piece.

In one embodiment, a power storage assembly comprises: the first screw rod is sleeved with at least one first elastic reset piece, and each first elastic reset piece is located between the second moving piece and the second fixing plate.

In one embodiment, a power storage assembly comprises: one end of the mounting shaft is fixed on the first fixing plate, and the other end of the mounting shaft passes through the second moving piece and is fixed on the second fixing plate; at least one second elasticity piece that resets, second elasticity reset the piece and locate corresponding installation axle, and the second elasticity resets and is located between second moving member and the second fixed plate.

In one embodiment, the drive assembly includes a power take-off shaft; the braking system further includes: the driving synchronous wheel is connected with the power output shaft, and the driven synchronous wheel is in transmission connection with the driving part; the synchronous belt is sleeved on the driving synchronous wheel and the driven synchronous wheel.

In one embodiment, an elastic buffer layer is provided on a side surface of the first moving part facing the second moving part and/or a side surface of the second moving part facing the first moving part.

According to another aspect of the present disclosure, there is provided a vehicle including the brake system of the vehicle according to the above-described first aspect of the present disclosure.

In one embodiment, the vehicle is an autonomous vehicle.

According to the technical scheme of this disclosure, the brake subassembly can effectively be removed to the release position from the brake position to can guarantee the vehicle for example the normal operating of autopilot vehicle, promote the reliability of vehicle.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The drawings are included to provide a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:

FIG. 1 is a schematic perspective view of a braking system for a vehicle according to an embodiment of the present disclosure;

FIG. 2 is a first state diagram of a braking system of a vehicle according to an embodiment of the present disclosure;

FIG. 3 is a second state diagram of a braking system of the vehicle according to an embodiment of the present disclosure;

FIG. 4 is a third state diagram of a braking system of the vehicle according to an embodiment of the present disclosure;

fig. 5 is a block diagram of a vehicle according to an embodiment of the present disclosure.

Reference numerals:

100: a braking system;

11: a drive assembly; 12: a driving member; 121: a first lead screw; 122: a third screw rod;

13: a driven member; 131: a first nut; 132: a third nut;

14: a first moving member; 15: a second moving member; 16: a brake assembly; 17: a first fixing plate;

18: a second fixing plate; 19: a second lead screw; 20: a second nut;

21: a power storage assembly; 211: an electromagnet; 212: a first elastic reset member; 213: installing a shaft; 214: a second elastic reset piece;

22: an adsorbing member; 23: a detection device; 24: a sensing member; 25: a third fixing plate;

26: a fastener; 27: an elastic member; 28: a driving synchronizing wheel;

29: a driven synchronizing wheel; 30: a synchronous belt; 31: an elastic buffer layer;

200: a vehicle.

Detailed Description

Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

Fig. 1 shows a schematic perspective view of a braking system 100 of a vehicle according to an embodiment of a first aspect of the disclosure. As shown in fig. 1, the braking system 100 includes: the device comprises a driving component 11, a driving part 12 and a driven part 13 which are connected in a transmission way, a first moving part 14, a second moving part 15 and a brake component 16.

Specifically, the driving member 12 is in transmission connection with the driving assembly 11 to move the driven member 13 in the first moving direction under a first driving action of the driving assembly 11. The first moving member 14 is fixedly connected with the driven member 13, the second moving member 15 is configured to move in a first moving direction under the action of the first moving member 14, and the brake assembly 16 is disposed on the second moving member 15 to move from a braking position to a releasing position under the condition that the second moving member 15 moves in the first moving direction.

For example, the driving assembly 11 may include a motor, the driving member 12 may be connected to a power output shaft of the motor, and the driving member 12 and the driven member 13 may be structures that convert a rotational motion of the power output shaft of the motor into a linear motion, for example, the driving member 12 and the driven member 13 may be a crank block structure, a rack and pinion structure, a lead screw nut structure, and the like, but are not limited thereto.

The first moving member 14 and the second moving member 15 may be formed substantially in a "plate" like structure, that is, the first moving member 14 and the second moving member 15 have a dimension in the thickness direction much smaller than the dimensions thereof in the length direction and the width direction. The second moving member 15 may be located at one side of the first moving member 14 in the first moving direction.

The brake assembly 16 may include a brake cable, one end of which may be fixed to the top of the second moving member 15, and the other end of which may be fixed to a wheel device (not shown), for example, the other end of which may be connected to a cable-pulling rod on a driving wheel device or a steering wheel device.

For example, in the example of FIG. 2, the brake assembly 16 is in a braking position, wherein the brake cable is tensioned, increasing the friction between the drum brake pads and the inner surface of the tire of the corresponding wheel assembly, providing resistance to rotation of the drive or steering wheel, and effecting braking of the vehicle. When the driving assembly 11 works in a first driving state (for example, a working state that a power output shaft of a motor rotates forward), the driving member 12 drives the driven member 13 to move along a first moving direction under a first driving action of the driving assembly 11, so that the driven member 13 drives the first moving member 14 to move along the first moving direction, the first moving member 14 applies an acting force to the second moving member 15 to drive the second moving member 15 to move along the first moving direction, and the brake assembly 16 moves to a release position under the driving action of the second moving member 15, so that a brake cable is released, and the vehicle can be started in time under the condition that the vehicle, such as an automatic driving vehicle, stops for waiting for a signal lamp.

According to the braking system 100 of the vehicle of the embodiment of the disclosure, under the first driving action of the driving assembly 11, the driving member 12 can drive the driven member 13 and the first moving member 14 to move along the first moving direction, so that the first moving member 14 can push the second moving member 15 to move along the first moving direction, and thus the braking assembly 16 is driven to move from the braking position to the release position, so that the vehicle, such as an automatic driving vehicle, can exit from the braking mode in time, the normal running of the vehicle is realized, and the reliability of the vehicle can be effectively improved.

In one embodiment, the driving member 12 is further configured to move the driven member 13 in a second moving direction under a second driving action of the driving assembly 11, wherein the second moving direction is opposite to the first moving direction.

For example, referring to fig. 4, after the brake assembly 16 is moved to the release position, the driving assembly 11 is operated in the second driving state (for example, an operating state in which the power output shaft of the motor is reversely rotated), and the driving member 12 drives the driven member 13 to move in the second moving direction under the second driving action of the driving assembly 11, so that the driven member 13 drives the first moving member 14 to move in the second moving direction, and the first moving member 14 and the second moving member 15 are spaced apart from each other.

Therefore, through the arrangement, the moving directions of the driven part 13 and the first moving part 14 can be changed by changing the working state of the driving component 11, so that the first moving part 14 and the second moving part 15 are contacted or separated, the structure is simple, the operation is convenient, and the realization is easy.

In one embodiment, referring to fig. 2 and 3, the driving member 12 includes a first lead screw 121, the driven member 13 includes a first nut 131, the first nut 131 and the first moving member 14 are both sleeved on the first lead screw 121, and under a first driving action of the driving assembly 11, the first lead screw 121 rotates along a first rotating direction so that the first nut 131 drives the first moving member 14 to move along the first moving direction.

Illustratively, the first nut 131 is engaged with the first lead screw 121. In the case of forward rotation of the power output shaft of the motor, the first lead screw 121 can rotate in a first rotation direction (e.g. clockwise), and since the first moving member 14 defines the circumferential rotation of the first nut 131, the first nut 131 can move along the first lead screw 121 towards the first moving direction, so as to drive the first moving member 14 to move in the first moving direction. In the case that the power output shaft of the motor rotates reversely, the first lead screw 121 may rotate in a second rotation direction (e.g. counterclockwise direction) opposite to the first rotation direction, and at this time, the first nut 131 may move along the first lead screw 121 toward the second moving direction, so as to drive the first moving member 14 to move in the second moving direction.

Therefore, by arranging the first screw rod 121 and the first nut 131, the first nut 131 can convert the rotary motion of the first screw rod 121 into the linear motion of the first screw rod, and the first moving part 14 can move, so that the braking system 100 is simpler in structure and convenient to install. Moreover, the moving direction of the first nut 131 and the first moving member 14 can be changed by changing the rotating direction of the first lead screw 121, which facilitates the operation. In addition, the transmission efficiency and the positioning accuracy of the first screw rod 121 and the first nut 131 are high, and the reliability of the whole braking system 100 can be improved.

Further, the braking system 100 further includes a first fixing plate 17 and a second fixing plate 18, one end (e.g., a right end in fig. 2) of the first screw 121 is rotatably disposed on the first fixing plate 17, the second fixing plate 18 is disposed at a distance from the first fixing plate 17, the other end (e.g., a left end in fig. 2) of the first screw 121 is rotatably disposed on the second fixing plate 18, and the first nut 131 and the first moving member 14 are located between the first fixing plate 17 and the second fixing plate 18.

For example, one end of the first screw rod 121 may be inserted into the first fixing plate 17, the other end of the first screw rod 121 may be rotatably connected to the second fixing plate 18 through the first nut 131, the first moving member 14 and the second moving member 15, and the first nut 131 may be fixed to one side of the first moving member 14 in the length direction.

Therefore, on one hand, the first fixing plate 17 and the second fixing plate 18 can play a better supporting role, so that two ends of the first lead screw 121 can be supported on the first fixing plate 17 and the second fixing plate 18, and the structural stability of the braking system 100 can be effectively improved; on the other hand, the first fixing plate 17 and the second fixing plate 18 can play a role in stopping and limiting, so that the first nut 131 and the first moving part 14 are prevented from being disengaged from the two ends of the first lead screw 121, and the reliability of the braking system 100 is further improved.

In one embodiment, as shown in fig. 1, the braking system 100 further includes a second lead screw 19 and a second nut 20. The second lead screw 19 is parallel to the first lead screw 121, one end (e.g., the right end in fig. 2) of the second lead screw 19 is rotatably disposed on the first fixing plate 17, and the other end (e.g., the left end in fig. 2) of the second lead screw 19 is rotatably disposed on the second fixing plate 18. The second nut 20 is fixed on the second moving part 15, the second nut 20 and the second moving part 15 are both sleeved on the second lead screw 19, and the second nut 20 and the second moving part 15 are both located between the first fixing plate 17 and the second fixing plate 18, and under the condition that the second moving part 15 drives the second nut 20 to move along the first moving direction, the first lead screw 121 rotates along the first rotating direction.

Illustratively, the second nut 20 is matched with the second lead screw 19, one end of the second lead screw 19 is inserted into the first fixing plate 17, and the other end of the second lead screw 19 passes through the first moving part 14, the second moving part 15 and the second nut 20 to be rotatably connected with the second fixing plate 18. After the brake assembly 16 moves to the release position, the power output shaft of the motor rotates reversely to drive the first lead screw 121 to rotate along the second rotation direction, so that the first nut 131 and the first moving member 14 move along the second movement direction, and the first moving member 14 and the second moving member 15 are arranged at intervals. During the movement of the brake assembly 16 from the release position to the braking position, the second moving member 15 drives the second nut 20 to move in the second moving direction, and the second lead screw 19 rotates in the second rotating direction.

Therefore, by arranging the second screw rod 19 and the second nut 20, under the condition that the brake assembly 16 moves from the release position to the brake position, the second screw rod 19 does not need to be connected with the driving assembly 11, so that the driving assembly 11 can be driven to rotate without being connected, the moving resistance of the second nut 20 and the second moving member 15 can be reduced, the moving efficiency of the brake assembly 16 is improved, and the rapid braking of the brake system 100 is realized.

In an embodiment, as shown in fig. 2, the driving member 12 further includes a third screw 122, the driven member 13 further includes a third nut 132, the third screw 122 is sleeved with the third nut 132, under a first driving action of the driving assembly 11, the third screw 122 rotates along a first rotating direction so that the third nut 132 drives the first moving member 14 to move along the first moving direction, and the third screw 122 and the first screw 121 are respectively located at two sides of the second screw 19.

For example, one end (e.g., a right end in fig. 2) of the third screw 122 may be inserted into the first fixing plate 17, the other end (e.g., a left end in fig. 2) of the third screw 122 may be rotatably connected to the second fixing plate 18 through the third nut 132, the first moving member 14 and the second moving member 15, and the third nut 132 may be fixed to the other side in the length direction of the first moving member 14.

So set up, third lead screw 122 and first lead screw 121 can rotate under the first drive of drive assembly 11 is synchronous, can drive third nut 132 and first nut 131 along first moving direction synchronous motion, thereby make third nut 132 and first nut 131 drive first moving member 14 jointly and remove along first moving direction, make the removal of first moving member 14 can be more stable, avoid producing and rock, and then can guarantee the reliability that the vehicle brakes and traveles such as autopilot vehicle.

In one embodiment, referring to fig. 1, the braking system 100 further includes: an energy storage assembly 21 configured to store energy when pushed by the second moving element 15; and under the condition that the power accumulating assembly 21 releases energy, the energy accumulating assembly acts on the second moving part 15 to enable the second moving part 15 to move along the second moving direction so as to drive the brake assembly 16 to move from the releasing position to the braking position.

Illustratively, the power accumulating assembly 21 may include an elastic restoring member, which compresses and generates elastic potential energy under the pushing of the second moving member 15 in case that the second moving member 15 moves in the first moving direction. Under the condition that the elastic resetting member releases energy, the elastic potential energy of the elastic resetting member is converted into kinetic energy, so that the second moving member 15 is pushed to move along the second moving direction, and the second moving member 15 drives the brake assembly 16 to move towards the braking position.

Therefore, through the arrangement, the power accumulating assembly 21 can provide power for the second moving member 15 to move in the second moving direction, so that the second moving member 15 can drive the brake assembly 16 to move to a braking position, automatic braking of a vehicle such as an automatic driving vehicle is achieved, and safe driving of the vehicle is guaranteed.

In one embodiment, as shown in fig. 1, the braking system 100 further includes an absorbing member 22, the other end of the second lead screw 19 passes through the second fixing plate 18 and is connected to the absorbing member 22, and the absorbing member 22 and the second lead screw 19 are relatively fixed in the circumferential direction.

For example, the suction member 22 may be an iron member, and the other end of the second lead screw 19 and the suction member 22 may be connected by a spline, so that the suction member 22 and the second lead screw 19 may rotate synchronously in the circumferential direction, and the suction member 22 and the second lead screw 19 may move relatively in the axial direction.

Further, the power storage assembly 21 includes an electromagnet 211, the electromagnet 211 is disposed on a side of the adsorbing member 22 away from the second fixing plate 18, and when the electromagnet 211 is in the energized state, the electromagnet 211 adsorbs the adsorbing member 22, so that the brake assembly 16 is maintained at the release position; when the electromagnet 211 is in the power-off state, the electromagnet 211 releases the adsorbing member 22, so that the second moving member 15 moves in the second moving direction and drives the braking assembly 16 to move from the releasing position to the braking position.

For example, when the brake assembly 16 moves to the release position, the electromagnet 211 may be switched to the energized state to generate a magnetic field, so as to attract the attraction member 22, and the attraction member 22 is fixed to the electromagnet 211 under the action of the magnetic force, and since the attraction member 22 and the second lead screw 19 are relatively fixed in the circumferential direction, the rotation of the second lead screw 19 may be limited, so that the second lead screw 19 and the second nut 20 may be relatively fixed, and thus the brake assembly 16 may be maintained at the release position, and normal driving of the vehicle may be achieved. Under the condition that the electromagnet 211 is in the power-off state, the elastic resetting member can push the second moving member 15 and the second nut 20 to move along the second moving direction, so that the second moving member 15 can drive the brake assembly 16 to move to the braking position, and at this time, the second lead screw 19 rotates along the second rotating direction.

Therefore, by arranging the electromagnet 211 and the adsorption piece 22, the brake component 16 can be controlled to be at the release position or the brake position by controlling the power-on/off state of the electromagnet 211, so that a vehicle such as an automatic driving vehicle can keep normal running in the running process, active braking can be realized under the condition that the electromagnet 211 is powered off due to the fault of the brake system 100, and the potential safety hazard caused by the fact that the vehicle continues to run under the inertia effect is avoided.

In one embodiment, as shown in fig. 1, one of the second fixed plate 18 and the second moving member 15 is provided with a detecting device 23, and the other of the second fixed plate 18 and the second moving member 15 is provided with a sensing member 24, wherein the electromagnet 211 is in an energized state when the distance between the detecting device 23 and the sensing member 24 is greater than a preset distance and the vehicle is energized; in the case that the distance between the detecting device 23 and the sensing member 24 is less than or equal to the preset distance or the vehicle is powered off, the electromagnet 211 is in a powered off state.

Illustratively, the detecting device 23 may be a detecting switch, and the sensing member 24 may be a detecting switch plate. Wherein the detection switch may be fixed on the second fixing plate 18, and the detection switch plate may be fixed on the second moving member 15. In the case where the brake assembly 16 is moved to the release position, the detection switch may be in contact with the detection switch plate, where the distance between the detection switch and the detection switch plate is less than the preset distance, and in the case where the vehicle is powered on, where the electromagnet 211 is in a powered state, so that the brake assembly 16 is held at the release position. In the case of power failure of the vehicle, the electromagnet 211 is in a power-off state, and the second moving member 15 can drive the braking assembly 16 to move to the braking position.

With the arrangement, under the condition that the vehicle is powered off, the electromagnet 211 can release the adsorption part 22, so that the second moving part 15 can move along the second moving direction under the action of the power accumulation component 21, the brake component 16 can move to the braking position, active braking of the vehicle such as an automatic driving vehicle is realized, and potential safety hazards caused by continuous driving of the vehicle due to inertia under the condition of power failure are further avoided.

In one embodiment, referring to fig. 1 and 2, the braking system 100 further includes a third fixing plate 25, a fastening member 26, and an elastic member 27. The third fixing plate 25 is disposed on a side of the second fixing plate 18 away from the first fixing plate 17, the electromagnet 211 is disposed between the third fixing plate 25 and the second fixing plate 18, the fastening member 26 passes through the third fixing plate 25 and is connected to the electromagnet 211, and the elastic member 27 is sleeved on the fastening member 26.

Illustratively, the elastic member 27 may be a spring. The fastener 26 may include a head portion and a shaft portion, one end (e.g., a left end in fig. 2) of the shaft portion is connected to the head portion, the other end (e.g., a right end in fig. 2) of the shaft portion is connected to the electromagnet 211 through the third fixing plate 25, the spring is sleeved on the shaft portion, and the spring is located between the head portion and the third fixing plate 25.

Therefore, the elastic part 27 is sleeved on the fastening part 26, the position of the electromagnet 211 relative to the third fixing plate 25 can be adjusted to a certain degree, so that the electromagnet 211 can have a certain free moving space, the electromagnet 211 can be adjusted under the condition that the installation position of the electromagnet 211 is inclined, the electromagnet 211 is ensured to have a larger contact area with the adsorption part 22 under the condition that the adsorption part 22 is adsorbed, the adsorption force between the electromagnet 211 and the adsorption part 22 is improved, and the brake assembly 16 can be further ensured to be kept at the release position.

In one embodiment, referring to fig. 1, the power accumulating assembly 21 includes a plurality of first elastic restoring members 212, the first elastic restoring members 212 are sleeved on the first lead screw 121, and each of the first elastic restoring members 212 is respectively located between the second moving member 15 and the second fixing plate 18. In the description of the present disclosure, "a plurality" means two or more.

For example, fig. 1 shows two first elastic restoring elements 212, one of the two first elastic restoring elements 212 is sleeved on the first lead screw 121, and the other of the two first elastic restoring elements 212 is sleeved on the third lead screw 122. Under the condition that the second moving part 15 moves along the first moving direction, each first elastic resetting part 212 is compressed and generates elastic potential energy under the pushing of the second moving part 15. Under the condition that the first elastic resetting piece 212 releases energy, the first elastic resetting piece 212 pushes the second moving part 15 to move along the second moving direction. Alternatively, the first elastic restoring member 212 may be a spring, but is not limited thereto.

Therefore, the first elastic reset piece 212 is provided to provide power for the movement of the second moving piece 15 in the second moving direction, and meanwhile, the structure is simpler and the cost is lower, so that the cost of the whole braking system 100 can be reduced.

Two first elastic restoring members 212 are shown in fig. 1 to 4 for illustrative purposes, but it is obvious to those skilled in the art after reading the technical solution of the present disclosure that the solution can be applied to three or more first elastic restoring members 212, which also falls within the protection scope of the present disclosure.

In one embodiment, referring to FIG. 1, the power assembly 21 includes at least one mounting shaft 213 and at least one second resilient return member 214. Specifically, one end (e.g., the right end in fig. 2) of the mounting shaft 213 is fixed to the first fixing plate 17, the other end (e.g., the left end in fig. 2) of the mounting shaft 213 passes through the second moving member 15 and is fixed to the second fixing plate 18, the second elastic restoring member 214 is sleeved on the corresponding mounting shaft 213, and the second elastic restoring member 214 is located between the second moving member 15 and the second fixing plate 18.

For example, two mounting shafts 213 and two second resilient return members 214 are shown in the example of fig. 1. One of the two mounting shafts 213 is located above the first screw 121, and the other of the two mounting shafts 213 is located above the second screw 19. Under the condition that the second moving part 15 moves along the first moving direction, each second elastic resetting part 214 compresses and generates elastic potential energy under the pushing of the second moving part 15. Under the condition that the second elastic resetting piece 214 releases energy, the second elastic resetting piece 214 pushes the second moving piece 15 to move along the second moving direction. Alternatively, the second elastic restoring member 214 may be a spring, but is not limited thereto.

Therefore, by providing the second elastic restoring member 214, the second elastic restoring member 214 can also provide power for the movement of the second moving member 15 in the second moving direction, and the structure is also simple, so that the cost of the braking system 100 can be reduced.

In one embodiment, referring to FIG. 1, the drive assembly 11 includes a power take-off shaft. Braking system 100 also includes a master synchronizing wheel 28, a slave synchronizing wheel 29, and a timing belt 30. The driving synchronous wheel 28 is connected with the power output shaft, the driven synchronous wheel 29 is in transmission connection with the driving part 12, and the synchronous belt 30 is sleeved on the driving synchronous wheel 28 and the driven synchronous wheel 29.

Illustratively, there may be one driving synchronizing wheel 28 and two driven synchronizing wheels 29. One of the two driven synchronizing wheels 29 is connected to the one end of the first lead screw 121, and the other of the two driven synchronizing wheels 29 is connected to the one end of the third lead screw 122.

In this way, when the driving synchronizing wheel 28 is driven by the power output shaft to rotate, the driving synchronizing wheel 28 can drive the driven synchronizing wheel 29 to rotate through the synchronous belt 30, so that the driven synchronizing wheel 29 can drive the driving member 12 to rotate, and the driven member 13 can be driven by the driving member 12 to move along the first moving direction or the second moving direction.

In an alternative embodiment, as shown in fig. 1 and 4, an elastic buffer layer 31 is provided on a surface of the first moving member 14 facing the second moving member 15 and/or a surface of the second moving member 15 facing the first moving member 14. For example, in the example of fig. 4, the elastic buffer layer 31 may be secured to a side surface of the first moving member 14 facing the second moving member 15 by a fastener 26, such as a threaded fastener 26. Alternatively, the material of the elastic buffer layer 31 may be polyurethane, but is not limited thereto.

Therefore, by arranging the elastic buffer layer 31, the severe collision between the second moving part 15 and the first moving part 14 under the condition of moving along the second moving direction can be avoided, and the effective buffer effect can be achieved, so that the noise generated when the second moving part 15 is in contact with the first moving part 14 can be reduced, and the service lives of the first moving part 14 and the second moving part 15 can be prolonged.

A number of states of the braking system 100 according to an embodiment of the present disclosure are described below in conjunction with fig. 2-4.

The initial state of the braking system 100 may be a braking state, as shown in fig. 2, when the first elastic restoring member 212 and the second elastic restoring member 214 may be in an original state.

Under the condition that the power output shaft of the motor rotates positively, referring to fig. 3, the power output shaft of the motor drives the driving synchronizing wheel 28 to rotate along the first rotation direction, the driving synchronizing wheel 28 drives the two driven synchronizing wheels 29 to rotate along the first rotation direction, so that the first lead screw 121 and the third lead screw 122 are driven by the driven synchronizing wheels 29 to rotate along the first rotation direction, the first nut 131 and the third nut 132 drive the first moving member 14 to move along the first movement direction, so that the first moving member 14 pushes the second moving member 15 and the brake assembly 16 to move along the first movement direction, at this time, the first elastic resetting member 212 and the second elastic resetting member 214 are compressed, and elastic potential energy is generated. In the process that the second moving member 15 moves along the first moving direction, the second nut 20 is driven by the second moving member 15 to move along the first moving direction, so that the second lead screw 19 rotates along the first rotating direction. When the second moving member 15 moves to a position where the distance between the detecting device 23 and the sensing member 24 is less than or equal to the preset distance, the electromagnet 211 is switched to the energized state and generates a magnetic field, so as to attract the adsorbing member 22, thereby fixing the second screw rod 19, and keeping the brake assembly 16 at the release position after moving to the release position.

After the electromagnet 211 adsorbs the adsorbing member 22, referring to fig. 4, the power output shaft of the motor rotates reversely, so that the first lead screw 121 and the third lead screw 122 are driven by each driven synchronizing wheel 29 to rotate in the second rotating direction, and the first nut 131 and the third nut 132 drive the first moving member 14 to move in the second moving direction, so that the first moving member 14 returns to the end adjacent to the first fixing plate 17.

When the electromagnet 211 is turned to the power-off state due to a failure of the braking system 100, referring to fig. 2, the first elastic resetting member 212 and the second elastic resetting member 214 release energy to push the second moving member 15 to move along the second moving direction, the second moving member 15 drives the second nut 20 and the braking assembly 16 to move along the second moving direction, and at this time, the second lead screw 19 rotates along the second rotating direction until the braking assembly 16 moves to the braking position, so as to achieve active braking.

According to the braking system 100 of the embodiment of the disclosure, under the condition that the electromagnet 211 is in the power-off state, active braking can be realized, and the safety of a vehicle such as an automatic driving vehicle is effectively improved. Moreover, under the condition that the first elastic resetting piece 212 and the second elastic resetting piece 214 push the second moving piece 15 to move along the second moving direction, only the rotating iron and the second screw rod 19 rotate, the power output shaft of the motor can be not required to be driven to rotate, the active braking effect is better, and rapid braking can be realized.

As shown in fig. 5, a vehicle 200, such as an autonomous vehicle, according to an embodiment of the second aspect of the present disclosure includes a braking system 100 according to any of the above-described first aspects of the present disclosure.

According to the vehicle 200, such as an automatic driving vehicle, according to the embodiment of the disclosure, by adopting the braking system 100, the vehicle can timely exit from the braking mode, the normal running of the vehicle is ensured, and the reliability of the vehicle can be effectively improved.

Other configurations of the braking system 100 and the vehicle 200 of the above embodiments may be adopted by various technical solutions known by those skilled in the art now and in the future, and will not be described in detail herein.

In the description of the present specification, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present disclosure.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "beneath," and "under" the second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different features of the disclosure. In order to simplify the disclosure of the present disclosure, specific example components and arrangements are described above. Of course, they are merely examples and are not intended to limit the present disclosure. Moreover, the present disclosure may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

While the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (15)

1. A braking system for a vehicle, comprising:

a drive assembly;

the driving part is in transmission connection with the driving assembly so as to enable the driven part to move along a first moving direction under the first driving action of the driving assembly;

the first moving piece is fixedly connected with the driven piece;

a second moving member configured to move in the first moving direction by the first moving member;

and the brake assembly is arranged on the second moving member and moves from a braking position to a releasing position under the condition that the second moving member moves along the first moving direction.

2. The vehicle braking system of claim 1, wherein the driving member is further configured to move the driven member in a second direction of movement under a second driving action of the drive assembly, wherein the second direction of movement is opposite to the first direction of movement.

3. The braking system of a vehicle according to claim 1 or 2, wherein the driving member includes a first lead screw, the driven member includes a first nut, the first nut and the first moving member are both disposed on the first lead screw, and under a first driving action of the driving assembly, the first lead screw rotates in a first rotating direction so that the first nut drives the first moving member to move in a first moving direction; the braking system further includes:

one end of the first screw rod is rotatably arranged on the first fixing plate;

the second fixing plate is arranged at an interval with the first fixing plate, the other end of the first screw rod is rotatably arranged on the second fixing plate, and the first nut and the first moving piece are positioned between the first fixing plate and the second fixing plate.

4. The brake system of a vehicle according to claim 3, further comprising:

the second screw rod is parallel to the first screw rod, one end of the second screw rod is rotatably arranged on the first fixing plate, and the other end of the second screw rod is rotatably arranged on the second fixing plate;

the second nut is fixed on the second moving part, the second nut and the second moving part are all sleeved on the second screw rod, the second nut and the second moving part are all located between the first fixing plate and the second fixing plate, and the second screw rod rotates along the first rotating direction under the condition that the second moving part drives the second nut to move along the first moving direction.

5. The braking system of claim 4, wherein the driving member further includes a third screw, the driven member further includes a third nut, the third nut is sleeved on the third screw, under a first driving action of the driving assembly, the third screw rotates along the first rotating direction so that the third nut drives the first moving member to move along the first moving direction, and the third screw and the first screw are respectively located at two sides of the second screw.

6. The braking system of a vehicle of claim 4, further comprising:

the power accumulating assembly is configured to store energy under the pushing of the second moving part; and under the condition that the power accumulating assembly releases energy, the energy accumulating assembly acts on the second moving member to enable the second moving member to move along a second moving direction so as to drive the brake assembly to move from the releasing position to the braking position, wherein the second moving direction is opposite to the first moving direction.

7. The braking system of a vehicle of claim 6, further comprising:

the other end of the second screw rod penetrates through the second fixing plate to be connected with the adsorption piece, and the adsorption piece and the second screw rod are relatively fixed in the circumferential direction;

the power storage assembly comprises an electromagnet, the electromagnet is arranged on one side of the adsorption piece, which is far away from the second fixing plate, and the electromagnet adsorbs the adsorption piece under the condition that the electromagnet is in a power-on state, so that the brake assembly is kept at the release position; and under the condition that the electromagnet is in a power-off state, the electromagnet releases the adsorption piece so as to enable the second moving piece to move along a second moving direction and drive the brake assembly to move from the release position to the brake position.

8. The braking system of a vehicle according to claim 7, wherein a detecting device is provided on one of said second fixed plate and said second moving member, and a sensing member is provided on the other of said second fixed plate and said second moving member,

when the distance between the detection device and the induction piece is larger than a preset distance and the vehicle is electrified, the electromagnet is in an electrified state; and under the condition that the distance between the detection device and the induction piece is smaller than or equal to the preset distance or the vehicle is powered off, the electromagnet is in a power-off state.

9. The brake system of a vehicle according to claim 7, further comprising:

the third fixing plate is arranged on one side, far away from the first fixing plate, of the second fixing plate, and the electromagnet is located between the third fixing plate and the second fixing plate;

the fastening piece penetrates through the third fixing plate and is connected with the electromagnet;

the elastic piece is sleeved on the fastening piece.

10. A braking system for a vehicle as set forth in claim 6 wherein said power accumulation assembly includes:

the first elastic reset pieces are sleeved on the first screw rod, and each first elastic reset piece is located between the second moving piece and the second fixing plate.

11. A braking system for a vehicle as set forth in claim 6 wherein said power accumulation assembly includes:

one end of the mounting shaft is fixed to the first fixing plate, and the other end of the mounting shaft penetrates through the second moving member and is fixed to the second fixing plate;

at least one second elasticity piece that resets, the second elasticity piece that resets is located corresponding installation axle, just the second elasticity resets and is located the second moving member with between the second fixed plate.

12. A braking system for a vehicle according to claim 1 or 2, wherein the drive assembly comprises a power take-off shaft;

the braking system further includes:

the driving synchronizing wheel is connected with the power output shaft, and the driven synchronizing wheel is in transmission connection with the driving part;

and the synchronous belt is sleeved on the driving synchronous wheel and the driven synchronous wheel.

13. The braking system for a vehicle according to claim 1 or 2, wherein an elastic buffer layer is provided on a side surface of the first moving member facing the second moving member and/or a side surface of the second moving member facing the first moving member.

14. A vehicle characterized by comprising a braking system of a vehicle according to any one of claims 1-13.

15. The vehicle of claim 14, characterized in that the vehicle is an autonomous vehicle.

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