Automobile parking device, parking system and automobile

Abstract

The present application discloses a parking device for a vehicle, the parking device including a parking gear, a position limiting member, a parking pole, a push rod assembly, a swing drive member, and a return member. The position limiting member is provided spaced apart from a circumferential side surface of the parking gear. The parking pole is rotatably provided within the vehicle, with an engaging end of the parking pole positioned between the position limiting member and the parking gear and rotatable to a parking position where it engages with the parking gear. The push rod is provided with a pushing portion that can abut between the parking pole and the position limiting member. A push block is slidably provided on the push rod. An elastic member is connected between the pushing portion and the push block. The swing drive member is reciprocally swingable, and the swing end of the swing drive member is hingedly connected to the push block so that the push block pushes or pulls the pushing portion via the elastic member, and the parking pole can swing the engaging end to the parking position when the pushing portion is pushed. The restoring member is capable of applying a restoring force to the parking pole so as to allow the bite end to move away from the parking position after the pushing portion is pulled.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority from a Chinese patent application filed with the China Patent Office on September 22, 2022, bearing application number 202211159970.7 and titled "Automobile parking device, parking system and automobile," the entire contents of which are incorporated herein by reference.

[0002] Technical Field The present application relates to the field of automobiles, in particular to a parking device for an automobile, and also to a parking system and an automobile equipped with such a parking device. [Background technology]

[0003] While driving, encountering traffic jams, or going up or downhill, automobiles must be started and stopped frequently. In these cases, using the foot brake can tire the driver and cause the vehicle to roll back, while using the handbrake can increase the starting response time and cause the vehicle to roll back. Using a parking device can effectively prevent the risk of the automobile rolling back when driving on traffic jams or going up or downhill, and can keep the vehicle stationary and parked for a long time. However, conventional parking devices have poor durability and low stability. Summary of the Invention

[0004] In response to the above problems, the present application discloses a parking device for a vehicle to solve the above problems or at least partially solve the above problems.

[0005] The present application further discloses a parking system including the parking device.

[0006] The present application further discloses a vehicle equipped with the parking system.

[0007] In order to achieve the above object, the present application adopts the following technical solutions.

[0008] The present application provides a parking device for a vehicle, the parking device including a parking gear, a position limiting member, a parking pole, a push rod assembly, a swing drive member, and a return member. The parking gear is connected to the vehicle's power transmission system. The position limiting member is fixedly mounted within the vehicle and spaced apart from a circumferential side surface of the parking gear. The parking pole is rotatably mounted within the vehicle around a fixed axis, and the engaging end of the parking pole is located between the position limiting member and the parking gear and is rotatable to a parking position where it engages with the parking gear. The push rod assembly includes a push rod, a push block, and an elastic member. The push rod is provided with a pushing portion that can abut between the parking pole and the position limiting member. The push block is slidably mounted on the push rod. The elastic member is connected between the pushing portion and the push block. The swing drive member is capable of swinging back and forth around a swing axis, and the swing end of the swing drive member is pushed or pulled by the push block via an elastic member so that the pushing part moves, and the parking pawl can be hingedly connected to the push block so that the engaging end can be rotated to the parking position by the parking pawl when the pushing part is pushed. The returning member can supply a returning force to the parking pawl so that the engaging end can be released from the parking position after the pushing part is pulled.

[0009] The above-mentioned automobile parking device has a simple structure, and by cleverly utilizing the cooperative relationship between structures, it realizes the drive of the push rod by a swinging drive method, occupies a small space, has a compact structure, can guarantee the accuracy of the parking operation, is durable, and has high stability.

[0010] In one exemplary embodiment of the automobile parking device, the pushing unit includes a pushing bracket and first and second rollers rotatably mounted on the pushing bracket, where the first roller can abut against the position limiting member and the second roller can abut against the parking pole. The roller design can effectively reduce component loss during the transmission process and make the overall transmission operation smoother.

[0011] In one exemplary embodiment of a parking device for a vehicle, the position restricting member is provided with two spaced-apart first position restricting portions. The pushing bracket is provided with a second position restricting portion, which can be positioned between the two first position restricting portions and can abut against one of the first position restricting portions along the movement direction after moving with the pushing bracket. The first and second position restricting portions can be used to effectively restrict the positional relationship between the pushing portions and the position restricting member, making the overall structure more stable.

[0012] In one exemplary embodiment of the automobile parking device, the elastic member is a spring mounted on the push rod.

[0013] In one exemplary embodiment of the automobile parking device, the push block is a slide bush fitted on the exterior of the push rod, and a pair of opposing hinge coupling portions is provided on the outer surface of the push block. The swing drive member includes a pair of swing portions spaced apart from each other, and swing ends of the pair of swing portions can each be hingedly coupled to the push block via one hinge coupling portion.

[0014] In one exemplary embodiment of the parking device for a vehicle, the push rod is further provided with an unlocking portion. The parking device further includes a manual pull rod, which is provided with a pulling portion, and the manual pull rod can pull the unlocking portion so that the pushing portion is pulled. The manual pull rod can be extended into the driver's cab, so that the driver can manually unlock the parking state by pulling the manual pull rod when a parking malfunction occurs in the vehicle.

[0015] The present application further provides a parking system for an automobile, which includes the parking device and a rotary drive device, and the rotary drive device is capable of supplying a driving force to the swing drive member.

[0016] In one exemplary embodiment of the parking system for a vehicle, the parking system further includes a rotation position sensor provided in the rotation drive device and a pole position sensor for detecting the position of the parking pole. By providing the two position sensors, the current operating status of the parking device can be accurately obtained, and the safety level can be increased.

[0017] The present application further provides a vehicle equipped with the parking system. [Brief explanation of the drawings]

[0018] Various other benefits and advantages will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Furthermore, like reference numerals are used throughout the drawings to refer to like parts.

[0019] [Figure 1] FIG. 1 is an exploded structural schematic diagram for explaining one exemplary embodiment of a parking device for an automobile. [Figure 2]FIG. 2 is a schematic diagram of the assembled structure of the parking device for the automobile shown in FIG. [Figure 3] 3 to 5 are schematic diagrams illustrating the operation of a parking device for an automobile. [Figure 4] 3 to 5 are schematic diagrams illustrating the operation of a parking device for an automobile. [Figure 5] 3 to 5 are schematic diagrams illustrating the operation of a parking device for an automobile. [Figure 6] 6 to 8 are structural schematic diagrams and operational state schematic diagrams for explaining another exemplary embodiment of a parking device. [Figure 7] 6 to 8 are structural schematic diagrams and operational state schematic diagrams for explaining another exemplary embodiment of a parking device. [Figure 8] 6 to 8 are structural schematic diagrams and operational state schematic diagrams for explaining another exemplary embodiment of a parking device. [Figure 9] FIG. 9 is a structural schematic diagram for explaining one exemplary embodiment of a parking system for an automobile. DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described below clearly and completely in conjunction with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, and are not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without paying creative labor are within the scope of protection of the present application.

[0021] As used herein, the term "exemplary" means "serving as an example, instance, or illustration," and any illustrations or embodiments described herein as "exemplary" should not be construed as a preferred or advantageous technical solution.

[0022] In order to simplify the drawings, each drawing shows only parts relevant to the present application, and does not represent the actual structure of the product. In addition, in order to simplify the drawings and make them easier to understand, in some drawings, parts having the same structure or function are depicted only one by one in a schematic manner or illustrated only one by one.

[0023] The technical solutions according to the embodiments of the present application will be described in detail below in conjunction with the drawings.

[0024] Fig. 1 is an exploded structural schematic diagram for explaining one exemplary embodiment of a parking device for a vehicle. Fig. 2 is an assembled structural schematic diagram for explaining the parking device for a vehicle shown in Fig. 1. As shown in Figs. 1 and 2, the parking device for a vehicle includes a parking gear 10, a parking pole 20, a restoring member 24, a position restricting member 30, a push rod assembly 40, and a swing drive member 50.

[0025] The parking gear 10 is interlocked with the power transmission system, e.g., the transmission, inside the vehicle, and moves in synchronization with the power transmission system inside the vehicle. Therefore, when the parking gear 10 is locked, the power transmission system of the vehicle is also locked and the vehicle enters a parking state.

[0026] The position restricting member 30 is provided at a fixed position in the automobile, and the position restricting member 30 provided at the fixed position is provided at a distance from the circumferential side surface of the parking gear 10, which is the side surface of the gear teeth of the parking gear 10. Since the rotation axis of the parking gear 10 is relatively fixed, a fixed distance is provided between the fixedly provided position restricting member 30 and the parking gear 10, and an installation space is defined, see FIG. 2.

[0027] The parking pole 20 is provided inside the automobile so as to be rotatable about a fixed axis, and the engaging end 22 of the parking pole 20 is located within an attachment space defined between the position restricting member 30 and the parking gear 10. When the engaging end 22 of the parking pole 20 rotates about the fixed axis to the parking position, the engaging end 22 engages with the parking gear 10, locking the parking gear 10 and achieving parking.

[0028] The restoring member 24 can act on the parking pawl 20 to provide a restoring force to the parking pawl 20, which can rotate the parking pawl 20 and move its engaging end 22 away from the parking position. The specific process will be described later. In the illustrated embodiment, a torsion spring is used for the restoring member 24.

[0029] The push rod assembly 40 includes a push rod 42, a push block 44, and an elastic member 46. The push rod 42 is provided with a pushing portion 422 that can abut against the space between the parking pole 20 and the position restriction member 30. That is, as shown in Fig. 2, both the pushing portion 422 of the push rod 42 and the parking pole 20 are provided in the mounting space defined between the position restriction member 30 and the parking gear 10, and the order is the position restriction member 30, the pushing portion 422, the parking pole 20, and the parking gear 10.

[0030] The push block 44 of the push rod assembly 40 is slidably mounted on the push rod 42, and the elastic member 46 is connected between the push block 44 and the pushing portion 422 of the push rod 42. Therefore, when the push block 44 moves, the push block 44 first acts on the pushing portion 422 via the elastic member 46, and if the pushing portion 422 cannot move as it is, the push block 44 will move relative to the push rod 42. In the embodiment shown in the figures, the elastic member 46 is a spring attached to the outside of the push rod 42.

[0031] The swing drive member 50 can swing back and forth around a swing axis, and the swing end 54 of the swing drive member 50 can be hingedly connected to the push block 44, constituting the power mechanism of the push rod assembly 40. The swing end 54 of the swing drive member 50 moves the push block 44 during the swing process, and as described above, the movement of the push block 44 acts on the pushing portion 422 of the push rod 42 via the elastic member 46, thereby moving the pushing portion 422.

[0032] Please refer to FIGS. 3 to 5 for the specific operation process. 3, the parking device of the automobile is in a standby state at this time, and the parking gear 10 itself can rotate along with the transmission system of the automobile. At this time, the return member 24 supplies a return force to the parking pole 20, so that the parking pole 20 remains separated from the parking position.

[0033] When the vehicle needs to park, the pivot drive device 70 (see FIG. 9) is triggered, which causes the pivot drive member 50 to begin pivoting counterclockwise as indicated by the arrow in the figure, and the push block 44 is moved to the right by the pivot drive member 50. Since the push block 44 moves together with the pivot drive member 50, it performs a pivoting motion to the right by itself, rather than a linear motion. The pivoting motion of the push block 44 to the right acts on the pushing portion 422 of the push rod 42 via the elastic member 46, which moves the pushing portion 422 to the right. The contact between the pushing portion 422 and the parking pole 20 overcomes the restoring force of the restoring member 24, and the parking pole 20 is pushed to pivot clockwise as indicated by the arrow in the figure.

[0034] The pushing action of the pushing portion 422 against the parking pole 20 is the result of mutual cooperation between several parts.

[0035] First, as can be seen from the above description and drawings, the push rod 42 is coupled to the swing drive member 50 (coupled here means that the members are coupled to each other and cannot be separated) only by the elastic member 46 and the push block 44, and because the push block 44 is hingedly coupled to the swing drive member 50, the pushing portion 422 of the push rod 42 itself may be in a state where it is free to rotate about the hinge axis. On the other hand, the pushing portion 422 is restricted by both the parking pole 20 under the action of the return member 24 and the position restricting member 30 fixed in the automobile, and the contact between the parking pole 20 and the position restricting member 30 and the pushing portion 422 not only restricts and positions the pushing portion 422, but also skillfully restricts the movement trajectory of the pushing portion 422.

[0036] Next, the pushing part 422 maintains contact with the parking pole 20 by utilizing the restricted movement trajectory, and furthermore, by utilizing the shape design of the mutual contact surfaces between the pushing part 422 and the parking pole 20, the pushing action of the pushing part 422 on the parking pole 20 is realized during the movement process along the movement trajectory.

[0037] The pushing portion 422 moves along its movement trajectory and pushes the parking pole 20 to rotate to the parking position, and as shown in Figure 4, the engaging portion 22 of the parking pole 20 and the parking gear 10 engage with each other, preventing the parking gear 10 and the transmission structure inside the automobile from continuing to rotate, thereby achieving parking.

[0038] When attempting to release the parking state, triggering the rotation drive device 70 (see FIG. 9) causes the rotation drive device 70 to start swinging the swing drive member 50 in the clockwise direction indicated by the arrow in FIG. 4, and the swing drive member 50 swings the push block 44 to the left. As the push block 44 swings to the left, the pushing portion 422 of the push rod 42 is pulled via the elastic member 46, and the pushing portion 422 is moved to the left by the elastic member 46. The pushing portion 422 no longer supplies the parking pole 20 with a pushing force that overcomes the returning member 24, and the returning force of the returning member 24 acts on the parking pole 20. As a result, the parking pole 20 is rotated counterclockwise as indicated by the arrow in the figure until the engaging portion 22 of the parking pole 20 disengages from the parking gear 10, and the parking state is released as shown in FIG. 3.

[0039] It should be noted that during the parking process, a situation in which the parking pole 20 cannot be engaged may occur while being pushed by the pushing part 422 and rotated to the parking position. Referring to Fig. 5, if the engaging end 22 of the parking pole 20 is exactly aligned with the gear teeth of the parking gear and cannot engage between the two gear teeth, a situation in which the parking pole 20 cannot be engaged occurs. At this time, the parking pole 20 cannot rotate clockwise, and the pushing part 422 is also prevented from moving to the right. Therefore, when the swing drive member 50 swings the push block 44 to the right, the elastic member 46 is compressed as shown in the figure, and the elastic member 46 is compressed and deformed, storing energy. When the internal system of the automobile detects that the swing drive member 50 has operated but the parking pawl 22 has not, it determines that the above-mentioned situation of disabling engagement has occurred, and at this time, as shown in FIG. 4, it controls the parking gear to rotate slightly so that the engaging end 22 of the parking pawl 20 is positioned between the two teeth and can engage, and energy is released from the elastic member 46 to push the pushing portion 422 and the parking pawl 20, thereby realizing the parking state.

[0040] The above-mentioned automobile parking device has a simple structure, and by cleverly utilizing the cooperative relationship between structures, it realizes the drive of the push rod by a swinging drive method, occupies a small space, has a compact structure, can guarantee the accuracy of the parking operation, is durable, and has high stability.

[0041] 1 to 5, the pushing portion 422 of the push rod 42 further includes a pushing bracket 423, a first roller 425, and a second roller 426. The first roller 425 and the second roller 426 are rotatably mounted on the pushing bracket 423, and the first roller 425 can abut against the position restricting member 30, and the second roller 426 can abut against the parking pole 20. By providing two rollers, the contact between the pushing portion 422 and the position restricting member 30 and the parking pole 20 is rolling contact, which can effectively reduce component loss during the transmission process. In particular, in the swinging drive mode, the pushing portion 422 rotates within a certain range relative to the position restricting member 30 and the parking pole 20, and the design of the rollers can make the entire transmission operation smoother.

[0042] 1 to 5, the position restricting member 30 is provided with two spaced-apart first position restricting portions 34. The pushing bracket 423 is provided with a second position restricting portion 424, which can be positioned between the two first position restricting portions 34 and can abut against one of the first position restricting portions 34 along the movement direction after moving along with the pushing bracket 423. That is, as shown in FIG. 3, when the pushing bracket 423 moves to the left, the left first position restricting portion 34 can abut against the second position restricting portion 424 so as to restrict the second position restricting portion 424 and the pushing bracket 423 from continuing to move leftward. As shown in FIG. 4, when the pushing bracket 423 moves to the right, the right first position restricting portion 34 can abut against the second position restricting portion 424 so as to restrict the second position restricting portion 424 and the pushing bracket 423 from continuing to move rightward. By utilizing the first position restricting portion 34 and the second position restricting portion 424, the positional relationship between the pushing portion 422 and the position restricting member 30 can be effectively restricted, and the overall structure can be made more stable.

[0043] 1 and 2, the push block 44 is a slide bush fitted onto the push rod 42, and a pair of opposing hinge coupling portions 442 is provided on the outer surface of the push block 44. The swing drive member 50 includes a pair of swing portions 52 spaced apart from each other, and swing ends 54 of the pair of swing portions 52 correspond to the pair of hinge coupling portions 442 and can be hingedly coupled to the push block 44 via the hinge coupling portions 442. The connection relationship between the swing drive member 50 and the push block 44 is more stable and effective.

[0044] 6 to 8 are structural schematic diagrams illustrating another exemplary embodiment of a parking device. As shown in FIGS. 6 to 8, the push rod 42 is further provided with an unlocking portion 48. The parking device further includes a manual pull rod 80, which is provided with a pulling portion 88, and the manual pull rod 80 can pull the unlocking portion 48 by means of the pulling portion 88 so that the pushing portion 422 is pulled.

[0045] As shown in Figure 6, the vehicle is in a normal driving state, the parking pole 20 has not yet reached its parking position, and the parking gear 10 can rotate along with the transmission system in the vehicle, which is similar to the state shown in Figure 3 and will not be mentioned here. At this time, there is no interaction between the pulling portion 88 of the manual pull rod 80 and the unlocking portion 48 of the push rod 42.

[0046] When parking is required, as shown in Figure 7, the parking pole 20 reaches its parking position and engages with the parking gear 10, preventing the rotation of the parking gear 10. This state is similar to that shown in Figure 4 and will not be discussed here. At this time, the unlocking portion 48 of the push rod 42 moves to the right in the figure along with the push rod 42, and at this position, there is no interaction between the pulling portion 88 of the manual pull rod 80 and the unlocking portion 48 of the push rod 42.

[0047] If the rotation drive device 70 (see FIG. 9) of the parking device is operating normally, it can switch between the two states shown in FIGS. 6 and 7 by swinging the swing drive member 50. However, if the rotation drive device 70 (see FIG. 9) of the parking device fails in the state shown in FIG. 7, the swing drive member 50 will be unable to swing. In order to unlock the parking state, the manual pull rod 80 can be pulled to the left side of the figure as shown by the arrow in the figure. The pulling portion 88 of the manual pull rod 80 can pull the unlocking portion 48 of the push rod 42 to the left, which moves the push rod 42 and its pushing portion 422 to the left side of the figure. The pushing portion 422 will no longer supply a pushing force to the parking pole 20 that overcomes the return member 24, and the return force of the return member 24 will act on the parking pole 20, causing the parking pole 20 to rotate counterclockwise until the engaging portion 22 of the parking pole 20 disengages from the parking gear 10, thereby unlocking the parking state.

[0048] The manual pull rod 80 can be extended into the driver's cab, so that the driver can manually unlock the parking state by pulling the manual pull rod 80 when a parking malfunction occurs.

[0049] The present application further provides a parking system for an automobile, which includes the above-mentioned parking device and a rotary drive device 70, and referring to FIG. 9, the rotary drive device 70 is capable of supplying a driving force to the swing drive member 50, thereby controlling the parking device to switch between a parking state and a parking state unlocked state.

[0050] 9, the parking system further includes a rotation position sensor (not shown) provided in the rotation drive device 70 and a pole position sensor 60 for detecting the position of the parking pole. By providing the above two position sensors, the current operating state of the parking device can be accurately obtained, thereby increasing the safety level.

[0051] The present application further provides a vehicle equipped with the parking system.

[0052] The above is merely a specific embodiment of the present application, and those skilled in the art can make other improvements or modifications based on the above teachings of the present application. Those skilled in the art should understand that the above specific description is only for better interpretation of the present application, and the protection scope of the present application is subject to the protection scope of the claims. [Explanation of symbols]

[0053] 10 Parking Gear 20 Parking Pole 22 Occlusal edge 24 Return member 30 Position control member 34 First position restriction portion 40 Push rod assembly 42 Push rod 422 Pushing part 423 Push-Move Bracket 424 Second position regulation part 425 First Roller 426 Second Roller 44 Push Block 442 Hinge joint 46 Elastic member 48 Unlocking section 50 Swing drive member 52 Swinging part 54 Swing end 60 Pole Position Sensor 70 Rotation drive device 80 Manual pull rod 88 Moving parts.

Claims

1. A parking device for a vehicle, a parking gear coupled to the transmission system of the vehicle; a position restriction member fixed in the vehicle and spaced apart from a circumferential side surface of the parking gear; a parking pole provided in the vehicle so as to be rotatable around a fixed axis, the engaging end of the parking pole being located between the position restricting member and the parking gear and being rotatable to a parking position where it engages with the parking gear; 1. A push rod assembly comprising: a push rod provided with a pushing portion that can be brought into contact between the parking pole and the position restricting member; a push block slidably mounted on the push rod; an elastic member connected between the pushing portion and the push block; a push rod assembly including: a swing drive member that can swing back and forth around a swing axis, wherein a swing end of the swing drive member is pushed or pulled by the push block via the elastic member so that the pushing portion moves, and the swing drive member can be hingedly connected to the push block so that the engaging end can be rotated to the parking position by the parking pawl when the pushing portion is pushed; a return member capable of supplying a return force to the parking pole so that the engaging end can be released from the parking position after the pushing portion is pulled.

2. 2. The parking device according to claim 1, wherein the pushing portion includes a pushing bracket and a first roller and a second roller rotatably provided on the pushing bracket, the first roller being capable of abutting against the position regulating member, and the second roller being capable of abutting against the parking pole.

3. The position restriction member is provided with two first position restriction portions spaced apart from each other, 3. The parking device according to claim 2, wherein the push-moving bracket is provided with a second position regulating portion, which is positionable between the two first position regulating portions and can abut against one of the first position regulating portions along the movement direction after moving along with the push-moving bracket.

4. 2. The parking device according to claim 1, wherein the elastic member is a spring attached to the exterior of the push rod.

5. the push block is a slide bush fitted on the exterior of the push rod, and a pair of hinge coupling portions are provided on an outer surface of the push block, the hinge coupling portions being opposed to each other; The parking device according to claim 1, characterized in that the swing drive member includes a pair of swing portions spaced apart from each other, and each of the swing ends of the pair of swing portions can be hingedly connected to the push block via one of the hinge connection portions.

6. The push rod is further provided with an unlocking portion, 2. The parking device according to claim 1, further comprising a manual pull rod, the manual pull rod being provided with a pulling portion, and the manual pull rod being capable of pulling the unlocking portion by the pulling portion so as to pull the pushing portion.

7. A parking system for a vehicle, comprising: The parking device according to any one of claims 1 to 6; a rotation drive device capable of supplying a drive force to the swing drive member.

8. The parking system includes: a rotation position sensor provided in the rotation drive device; 8. The parking system of claim 7, further comprising a pole position sensor for detecting the position of the parking pole.

9. A motor vehicle comprising a parking system according to claim 7 or 8.

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