Parking device, parking system and vehicle

Abstract

The utility model discloses a parking device, parking system and vehicle, parking device includes: parking actuator and a plurality of parking mechanism, each parking mechanism includes pushing mechanism and locking mechanism, the pushing mechanism of a plurality of parking mechanism is connected with parking actuator, parking actuator is suitable for driving the pushing mechanism to move, the locking mechanism is connected with the pushing mechanism, and the parking actuator is suitable for driving the pushing mechanism to move. The locking mechanism comprises a limiting piece and a rotating piece, the limiting piece abuts against the pushing mechanism, and the pushing mechanism is suitable for driving the limiting piece to be detachably matched with the rotating piece. Therefore, a single parking actuator can control the multiple parking mechanisms at the same time, the purpose of synchronous mechanical locking of the multiple parking mechanisms is achieved, the parking actuator is connected with the pushing mechanisms of the multiple parking mechanisms, and the parking actuator can control movement of the pushing mechanisms conveniently; the pushing mechanism moves to drive a limiting piece in the locking mechanism to be matched with or separated from the rotating piece so as to achieve locking and unlocking of the parking mechanism. The multiple parking mechanisms can disperse the load borne by each parking mechanism, and the service life of the parking mechanisms is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a parking device, a parking system and a vehicle. Background Art

[0002] In the prior art, the application of independent drive of the left and right wheels in the vehicle is becoming more and more common. When the vehicle is in P gear, the parking device only locks the reducer of a single vehicle, which does not meet the parking needs of the entire vehicle. Adding multiple parallel parking devices has the problems of high production cost, increased control requirements and large space occupation, and it is difficult to maintain the synchronization of the parking locks of multiple parking devices, thereby reducing the user experience of the parking device. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a parking device that can achieve synchronous control of multiple parking mechanisms and extend the service life of the parking mechanisms.

[0004] The second object of the present utility model is to provide a parking system, comprising the parking device described in the above embodiment of the reducer.

[0005] The third object of the present utility model is to provide a parking device or a parking system including the above-mentioned embodiments.

[0006] The parking device according to the first aspect of the present utility model comprises: a parking actuator and a plurality of parking mechanisms, each of the parking mechanisms comprises a pushing mechanism and a locking mechanism, the pushing mechanisms of the plurality of parking mechanisms are connected to the parking actuator, the parking actuator is suitable for driving the pushing mechanism to move, the locking mechanism comprises a limit member and a rotating member, the limit member is stopped against the pushing mechanism, and the pushing mechanism is suitable for driving the limit member to detachably cooperate with the rotating member.

[0007] According to the parking device of the embodiment of the utility model, a single parking actuator can control multiple parking mechanisms at the same time to achieve the purpose of synchronous mechanical locking of multiple parking mechanisms. The parking actuator is connected to the pushing mechanisms of multiple parking mechanisms so that the parking actuator can control the movement of the pushing mechanisms. The movement of the pushing mechanisms can drive the limit members and rotating members in the locking mechanisms to cooperate and separate to achieve the locking and unlocking of the parking mechanisms. The setting of multiple parking mechanisms can disperse the load borne by each parking mechanism to extend the service life of the parking mechanisms. The parking device has a simple structure, which can reduce the production cost of the parking device, improve the space utilization rate of the parking device, enhance the synchronization effect of multiple parking mechanisms, and enhance the reliability of the parking device.

[0008] In some embodiments, a plurality of mating grooves are formed on the rotating member, and the plurality of mating grooves are arranged at intervals along the circumference of the rotating member; the limiting member includes a mating portion, and the mating portion can be detachably mated with any one of the plurality of mating grooves.

[0009] In some embodiments, the limiting member is a limiting rod, one end of which is located between the pushing mechanism and the rotating member, and the matching portion is arranged at the one end of the limiting rod; the parking device also includes a first elastic member, which abuts against the limiting rod, and the first elastic member often pushes the limiting rod in a direction away from the rotating member so that the matching portion is suitable for separation from the matching groove.

[0010] In some embodiments, the locking mechanism has a locking position in which the mating groove cooperates with the mating portion and an unlocking position in which the mating groove is separated from the mating portion. The pushing mechanism drives the limiting member to make the mating portion cooperate with the mating groove so that the locking mechanism is located in the locking position. When the pushing mechanism moves in a direction away from the limiting member and the first elastic member drives the limiting member to separate the mating portion from the mating groove, the locking mechanism is located in the unlocking position.

[0011] In some embodiments, the first elastic member is a spring.

[0012] In some embodiments, the limiting member is a pawl, and the rotating member is a ratchet.

[0013] In some embodiments, it further includes: a reversing transmission mechanism, which is arranged between the parking actuator and the pushing mechanisms of the multiple parking mechanisms, and the reversing transmission mechanism cooperates with the parking actuator and the pushing mechanisms of the multiple parking mechanisms respectively.

[0014] In some embodiments, the reversing transmission mechanism includes: a first transmission shaft and a second transmission shaft, one end of the first transmission shaft cooperates with the parking actuator; the second transmission shaft cooperates with the other end of the first transmission shaft through a reversing mechanism, and the two ends of multiple second transmission shafts respectively cooperate with the pushing mechanisms of multiple parking mechanisms.

[0015] In some embodiments, the second transmission shaft includes two sub-transmission shafts, which are coaxially arranged, and the ends of the two sub-transmission shafts that are away from each other respectively cooperate with the corresponding pushing mechanisms, and the ends of the two sub-transmission shafts that are close to each other both cooperate with the reversing mechanism.

[0016] In some embodiments, the reversing mechanism includes a transmission gear, and ends of the two sub-transmission shafts close to each other are both key-connected to the transmission gear.

[0017] In some embodiments, the reversing transmission mechanism is a worm gear mechanism, a bevel gear pair mechanism, or a spur gear-face gear pair mechanism.

[0018] In some embodiments, the pushing mechanism includes: a cam and a second elastic member, one end of the cam is abutted against the limit member, and the other end of the cam is pivotally connected to the second transmission shaft; one end of the second elastic member is connected to the reversing transmission mechanism, and the other end of the second elastic member is abutted against the cam to drive the cam to rotate toward the side where the rotating member is located.

[0019] In some embodiments, it further includes: a blocking piece, wherein the blocking piece is connected to the reversing transmission mechanism, and the one end of the second elastic member is connected to the blocking piece.

[0020] In some embodiments, a rolling member is provided on the limiting member, the rolling member is rotatable relative to the limiting member, and the pushing mechanism is in rolling cooperation with the rolling member.

[0021] In some embodiments, the second elastic member is a torsion spring.

[0022] According to the second aspect of the present invention, the parking system comprises: a plurality of reducers and at least one parking device, wherein the parking device is the parking device according to the first aspect of the present invention, and the rotating parts of the plurality of parking mechanisms of the parking device are respectively arranged on the transmission shafts of the plurality of reducers.

[0023] The vehicle according to the third aspect of the present invention comprises the parking device according to the first aspect of the present invention or the parking system according to the second aspect of the present invention.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 Schematic diagram of a parking device according to an embodiment of the utility model.

[0027] Figure 2 It is a schematic diagram of a vehicle in a non-P gear state according to an embodiment of the utility model.

[0028] Figure 3 It is a schematic diagram of a vehicle in a P gear state according to an embodiment of the utility model.

[0029] Figure 4 It is a schematic diagram of a vehicle in a P gear state according to an embodiment of the utility model.

[0030] Figure 5 It is a schematic diagram of a vehicle in a P gear release state according to an embodiment of the utility model.

[0031] Reference numerals:

[0032] 100. Parking device;

[0033] 10. Parking actuator;

[0034] 20. Parking mechanism;

[0035] 30. Pushing mechanism; 31. Cam; 32. Second elastic member;

[0036] 40. locking mechanism; 41. limiting member; 42. matching portion; 43. rotating member; 44. matching groove; 45. protruding portion; 46. first elastic member;

[0037] 50. Reversing transmission mechanism; 51. First transmission shaft; 52. Second transmission shaft; 53. Reversing mechanism. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 5 A parking device 100 according to an embodiment of the present utility model is described, comprising: a parking actuator 10 and a plurality of parking mechanisms 20 .

[0039] Specifically, if Figure 1-Figure 5 As shown, each parking mechanism 20 includes a pushing mechanism 30 and a locking mechanism 40. The pushing mechanisms 30 of the multiple parking mechanisms 20 are all connected to the parking actuator 10. The parking actuator 10 is suitable for driving the pushing mechanism 30 to move. The locking mechanism 40 includes a limit member 41 and a rotating member 43. The limit member 41 is stopped against the pushing mechanism 30. The pushing mechanism 30 is suitable for driving the limit member 41 and the rotating member 43 to detachably cooperate.

[0040] Combination Figure 1-Figure 5 The parking actuator 10 can control the synchronous movement of multiple parking mechanisms 20. The parking actuator 10 drives the pushing mechanisms 30 in the multiple parking mechanisms 20 to move synchronously. The pushing mechanisms 30 move to drive the limit member 41 to cooperate and separate with the rotating member 43. When the limit member 41 cooperates with the rotating member 43, the parking device 100 is in a locked state. When the limit member 41 separates from the rotating member 43, the parking device 100 is in an unlocked state.

[0041] According to the parking device 100 of the embodiment of the utility model, a single parking actuator 10 can control multiple parking mechanisms 20 at the same time to achieve the purpose of synchronous mechanical locking of multiple parking mechanisms 20. The parking actuator 10 is connected to the pushing mechanisms 30 of the multiple parking mechanisms 20 so that the parking actuator 10 can control the movement of the pushing mechanisms 30. The movement of the pushing mechanism 30 can drive the limiter 41 in the locking mechanism 40 to cooperate and separate with the rotating member 43 to achieve the locking and unlocking of the parking mechanism 20. The setting of multiple parking mechanisms 20 can disperse the load borne by each parking mechanism 20 to extend the service life of the parking mechanism 20. The parking device 100 has a simple structure, which can reduce the production cost of the parking device 100, improve the space utilization rate of the parking device 100, enhance the synchronization effect of multiple parking mechanisms 20, and enhance the reliability of the parking device 100.

[0042] According to some embodiments of the present invention, Figure 1 As shown, a plurality of matching grooves 44 are formed on the rotating member 43 , and the plurality of matching grooves 44 are arranged at intervals along the circumference of the rotating member 43 ; the limiting member 41 includes a matching portion 42 , and the matching portion 42 can be detachably matched with any one of the plurality of matching grooves 44 .

[0043] A plurality of protrusions 45 are formed on the rotating member 43 , and the plurality of protrusions 45 are arranged at intervals along the circumference of the rotating member 43 . Matching grooves 44 are defined between adjacent protrusions 45 . Along the circumferential direction of the rotating member 43 , the plurality of matching grooves 44 and the plurality of protrusions 45 are arranged at intervals in sequence.

[0044] Therefore, the mating groove 44 of the rotating part 43 is suitable for mating with or separating from the mating portion 42 of the limiting part 41, so as to realize the limiting effect of the limiting part 41 on the rotating part 43, improve the reliability and firmness of the mating between the rotating part 43 and the limiting part 41, and improve the stability of the parking device 100 when it is in a locked state.

[0045] According to some embodiments of the present invention, Figure 1 As shown, the limit member 41 is a limit rod, one end of which is located between the pushing mechanism 30 and the rotating member 43, and the matching portion 42 is arranged at one end of the limit rod; the parking device 100 also includes a first elastic member 46, which abuts against the limit rod, and the first elastic member 46 often pushes the limit rod in a direction away from the rotating member 43 so that the matching portion 42 is suitable for separation from the matching groove 44.

[0046] The stopper 41 has a length direction, the stopper rod extends along the length direction, the matching portion 42 is provided at one end of the stopper rod along the length direction, and the matching portion 42 is formed by the end of the stopper rod along the length direction extending toward the side where the rotating member 43 is located. One end of the first elastic member 46 abuts against the stopper rod, and when the pushing mechanism 30 drives the matching portion 42 of the stopper 41 to match with the matching groove 44 of the rotating member 43, the first elastic member 46 is compressed, and when the force applied to the stopper 41 by the pushing mechanism 30 is released, the first elastic member 46 pushes the stopper 41 to move in a direction away from the rotating member 43 to separate the matching portion 42 of the stopper 41 from the matching groove 44 of the rotating member 43.

[0047] Therefore, the first elastic member 46 always pushes the limiting rod in a direction away from the rotating member 43 to facilitate the return of the limiting member 41, thereby releasing the limiting effect of the limiting member 41 on the rotating member 43 and switching the parking device 100 from the locked state to the unlocked state.

[0048] According to some embodiments of the present invention, Figure 1-Figure 5 As shown, the locking mechanism 40 has a locking position in which the matching groove 44 cooperates with the matching portion 42 and an unlocking position in which the matching groove 44 is separated from the matching portion 42. The pushing mechanism 30 drives the limiting member 41 to make the matching portion 42 cooperate with the matching groove 44 so that the locking mechanism 40 is located in the locking position. When the pushing mechanism 30 moves in a direction away from the limiting member 41 and the first elastic member 46 drives the limiting member 41 to separate the matching portion 42 from the matching groove 44, the locking mechanism 40 is located in the unlocking position.

[0049] The matching portion 42 on the limiting member 41 extends toward the direction close to the rotating member 43. When the matching portion 42 matches with any one of the multiple matching grooves 44, the end of the matching portion 42 matches in the matching groove 44, and one side of the matching portion 42 is suitable for abutting against the side of a protrusion 45 adjacent to the matching groove 44. Then, the matching portion 42 can achieve the limiting effect on the rotating member 43, preventing the rotating member 43 from continuing to rotate, so that the parking device 100 is in the locked position. When the matching portion 42 is separated from the matching groove 44, the matching portion 42 does not contact the protrusion 45, the rotating member 43 can rotate, and the parking device 100 is in the unlocked position.

[0050] Thus, the pushing mechanism 30 drives the matching portion 42 of the limit member 41 to match with the matching groove 44 so that the locking mechanism 40 is in the locked position, and the first elastic member 46 pushes the limit member 41 to separate the matching portion 42 from the matching groove 44 so that the locking mechanism 40 is in the unlocked position, thereby realizing the switching of the locking mechanism 40 between the locked position and the unlocked position. The limit member 41 has a simple structure and a simple movement process, which is conducive to improving the stability and reliability of the locking mechanism 40 when moving between the locked position and the unlocked position.

[0051] According to some embodiments of the present invention, Figure 1 As shown, the first elastic member 46 is a spring. A spring is a mechanical part that uses elasticity to work. When the spring is subjected to an external force, it will deform (elongate or shorten). When the external force is removed, the spring returns to its original shape by virtue of its own elasticity. Therefore, the first elastic member 46 is a spring, which facilitates the first elastic member 46 to push the limit rod in a direction away from the rotating member 43. The spring can accurately control the movement of the limit rod and provide a stable support for the limit rod. The spring can achieve long-term stable operation and has a high fatigue life. The durability of the first elastic member 46 can be improved. The manufacturing process of the spring is mature and can be mass-produced. The production cost is relatively low, which can reduce the production cost of the parking device 100. Its specifications and parameters are easy to standardize, which can also reduce the later maintenance cost of the parking device 100.

[0052] According to some embodiments of the present invention, Figure 1 As shown, the limiting member 41 is a pawl, and the rotating member 43 is a ratchet. The pawl and the ratchet are a pair of common mechanical transmission components, which are often used to achieve unidirectional movement or limit the direction of movement. The pawl is a component with tooth-like protrusions, usually in the shape of a hook or a rod, and the ratchet is a wheel-shaped or ring-shaped component with tooth grooves. When the pawl is engaged with the tooth grooves of the ratchet wheel, it can only move in one direction, and in the opposite direction, the ratchet teeth of the pawl will be stuck in the tooth grooves of the ratchet wheel, preventing the ratchet wheel from rotating in the opposite direction.

[0053] Therefore, the limit member 41 is a pawl and the rotating member 43 is a ratchet, which can achieve the function that the locking mechanism 40 is in a locked position when the matching portion 42 is matched with the matching groove 44, and is in an unlocked position when the matching portion 42 is separated from the matching groove 44. The pawl and ratchet structure has the advantages of simplicity, high reliability, convenient operation, strong adaptability, good safety and high cost-effectiveness. It can effectively improve the stability of the matching between the limit member 41 and the rotating member 43, enhance the reliability of the parking device 100, and extend the service life of the parking device 100.

[0054] According to some embodiments of the present invention, Figure 1 As shown, it also includes: a reversing transmission mechanism 50, which is arranged between the parking actuator 10 and the pushing mechanisms 30 of the multiple parking mechanisms 20, and the reversing transmission mechanism 50 cooperates with the parking actuator 10 and the pushing mechanisms 30 of the multiple parking mechanisms 20 respectively.

[0055] The reversing transmission mechanism 50 is respectively connected to the parking actuator 10 and the pushing mechanisms 30 of multiple parking mechanisms 20. The parking actuator 10 can control the reversing transmission mechanism 50 to drive the reversing transmission mechanism 50 to rotate a certain angle, thereby causing the reversing transmission mechanism 50 to drive the pushing mechanisms 30 in the parking mechanisms 20 to move toward or away from the rotating member 43.

[0056] Therefore, the parking actuator 10 is connected to the reversing transmission mechanism 50 to output a rotational power of a certain angle. The power passes through the reversing transmission mechanism 50 to change the rotation direction of the reversing transmission mechanism 50 and make the reversing transmission mechanism 50 rotate a certain angle. The reversing transmission mechanism 50 is connected to the pushing mechanisms 30 of multiple parking mechanisms 20. A single parking actuator 10 can simultaneously control the pushing mechanisms 30 of multiple parking mechanisms 20, so that the multiple pushing mechanisms 30 can move at the same time, thereby achieving the purpose of synchronous mechanical locking of multiple locking mechanisms 40.

[0057] According to some embodiments of the present invention, Figure 1 As shown, the reversing transmission mechanism 50 includes: a first transmission shaft 51 and a second transmission shaft 52, one end of the first transmission shaft 51 cooperates with the parking actuator 10; the second transmission shaft 52 cooperates with the other end of the first transmission shaft 51 through the reversing mechanism 53, and the two ends of multiple second transmission shafts 52 respectively cooperate with the pushing mechanisms 30 of multiple parking mechanisms 20.

[0058] One end of the first transmission shaft 51 is connected to the parking actuator 10 so that the rotational power of a certain angle output by the parking actuator 10 is transmitted to the first transmission shaft 51. The other end of the first transmission shaft 51 is connected to the second transmission shaft 52 through a reversing mechanism 53. The reversing mechanism 53 is used to change the movement direction of the second transmission shaft 52, and the rotational power on the first transmission shaft 51 can be transmitted to the second transmission shaft 52. The second transmission shaft 52 cooperates with the pushing mechanism 30 of the parking mechanism 20, and the rotational power on the second transmission shaft 52 can be transmitted to the pushing mechanism 30 to control the rotation of the pushing mechanism 30.

[0059] Thus, the rotational power output by the parking actuator 10 is transmitted to the pushing mechanism 30 through the first transmission shaft 51, the reversing mechanism 53 and the second transmission shaft 52 to control the movement of the pushing mechanism 30 and realize the transmission of power. The first transmission shaft 51 and the second transmission shaft 52 can realize long-distance, multi-angle and high-efficiency transmission of power, and the reversing mechanism 53 can realize flexible changes in the movement direction of the reversing transmission mechanism 50, thereby improving the versatility and operating efficiency of the reversing transmission mechanism 50.

[0060] According to some embodiments of the present invention, Figure 1As shown, the second transmission shaft 52 includes two sub-transmission shafts, which are coaxially arranged, and the ends of the two sub-transmission shafts that are away from each other are respectively matched with the corresponding pushing mechanisms 30, and the ends of the two sub-transmission shafts that are close to each other are both matched with the reversing mechanism 53. Taking the parking mechanism 20 including two pushing mechanisms 30 as an example, the ends of the two sub-transmission shafts of the second transmission shaft 52 that are away from each other are respectively connected to the two pushing mechanisms 30, and the ends of the two sub-transmission shafts that are close to each other are both matched with the reversing mechanism 53, and the rotational power on the first transmission shaft 51 can be transmitted to the two sub-transmission shafts of the second transmission shaft 52 through the reversing mechanism 53 at the same time, and transmitted to the two pushing mechanisms 30.

[0061] In this way, synchronous control of the two sub-transmission shafts can be achieved, and then synchronous control of the two pushing mechanisms 30 can be achieved, so as to achieve the purpose of synchronous locking of the two pushing mechanisms 30, improve the reliability of the locking mechanism 40 when locking, and extend the service life of the locking mechanism 40.

[0062] According to some embodiments of the present invention, Figure 1 As shown, the reversing mechanism 53 includes a transmission gear, and the ends of the two sub-transmission shafts close to each other are both connected with the transmission gear key.

[0063] The transmission gear transmits the rotational power of the first transmission shaft 51 to the second transmission shaft 52 through the meshing of the teeth, which can achieve the purposes of torque amplification, speed change and direction change. The transmission gear key connection refers to the use of a key, a standard part, to achieve a reliable connection between the transmission gear and the two sub-transmission shafts when assembling the transmission gear, ensuring that the two parts can both transmit torque and maintain an accurate positional relationship.

[0064] Therefore, the reversing mechanism 53 includes transmission gears, and the gear transmission has the characteristics of precise transmission ratio, high efficiency, efficient energy transmission, compact structure, reliable operation and flexible direction change, and can realize the power transmission and direction change between the first transmission shaft 51 and the second transmission shaft 52. As a traditional mechanical connection method, the key connection has the characteristics of simple structure, convenient disassembly and assembly, low cost and easy standardization, which provides a basic guarantee for the stable and efficient operation of the reversing transmission mechanism 50.

[0065] According to some embodiments of the present invention, Figure 1 As shown, the reversing transmission mechanism 50 is a worm gear mechanism, a bevel gear pair mechanism or a spur gear-face gear pair mechanism.

[0066] The worm gear mechanism is a special gear mechanism used to transmit motion and power between two intersecting axes. Its characteristic is that the tooth surfaces of the worm and the worm wheel are in spiral contact, which enables the mechanism to achieve a large transmission ratio, self-locking function and good stability while maintaining a compact structure. The bevel gear pair mechanism (also known as the bevel gear pair, bevel gear transmission) is a gear mechanism used to achieve motion and power transmission between two intersecting axes. Its characteristic is that the tooth lines of the two gears are distributed on the conical surface, and the axes of the two gears are perpendicular to each other. The spur-end face gear pair mechanism usually refers to a gear pair consisting of a spur gear and an end face gear (or disc gear). The characteristic of this gear pair is that one of the gears is a common spur gear, and the teeth of the other gear are distributed on the end face in a disc shape. End face gears are often used in situations where a 90-degree angle transmission between axes is required in a limited space.

[0067] Therefore, the worm gear mechanism is a staggered shaft transmission device with the characteristics of large transmission ratio, self-locking function, strong bearing capacity, stable transmission, compact structure, etc., which is suitable for various engineering applications that require precise control, large reduction ratio or anti-reversal. The bevel gear pair mechanism is a gear transmission device with high efficiency, strong bearing capacity and stable operation suitable for transmission between two-phase intersecting shafts, and is widely used in various mechanical equipment. The spur gear-end face gear pair mechanism has the advantages of compact structure and strong adaptability in some specific occasions, but because its bearing capacity and transmission stability are relatively weak, and the manufacturing and assembly requirements are high, it is not as common as bevel gear pairs and worm gears in practical applications. However, in situations where 90-degree angle transmission needs to be achieved in a limited space and there are high requirements for structural compactness, the spur gear-end face gear pair is still an effective choice. In summary, the reversing transmission mechanism 50 is a worm gear mechanism, a bevel gear pair mechanism or a spur gear-end face gear pair mechanism, which can effectively improve the transmission efficiency, working reliability and stability of the reversing transmission mechanism 50 and extend the service life of the reversing transmission mechanism 50.

[0068] According to some embodiments of the present invention, Figure 1 As shown, the pushing mechanism 30 includes: a cam 31 and a second elastic member 32, one end of the cam 31 is abutted against the limit member 41, and the other end of the cam 31 is pivotally connected to the second transmission shaft 52; one end of the second elastic member 32 is connected to the reversing transmission mechanism 50, and the other end of the second elastic member 32 is abutted against the cam 31 to be suitable for driving the cam 31 to rotate toward the side where the rotating member 43 is located.

[0069] One end of the cam 31 abuts against the stopper 41, and the other end of the cam 31 is pivotally connected to one end of the sub-transmission shaft. One end of the second elastic member 32 is connected to the reversing transmission mechanism 50, and the reversing transmission mechanism 50 can drive the second elastic member 32 to rotate a certain angle. The other end of the second elastic member 32 abuts against the cam 31, and the second elastic member 32 can drive the cam 31 to rotate when it rotates. The cam 31 is a component with a curved profile or a groove. When the cam 31 rotates a certain angle under the drive of the second elastic member 32, the end of the cam 31 abutting against the stopper 41 moves along the profile of the cam 31, and the position of the contact point between the cam 31 and the stopper 41 changes, thereby controlling the movement of the stopper 41, so that the stopper 41 rotates toward the side where the rotating member 43 is located, and the stopper 41 overcomes the thrust of the first elastic member 46, so that the stopper 41 cooperates with the rotating member 43, so that the locking mechanism 40 moves to the locking position.

[0070] Therefore, by designing the profile of the cam 31, it is possible to achieve precise control of the movement direction and movement distance of the limit member 41, and the lifting and pushing mechanism 30 can precisely control the locking mechanism 40. The reversing transmission mechanism 50 controls the rotation direction and rotation angle of the cam 31 by controlling the second elastic member 32 to achieve control of the locking mechanism 40.

[0071] According to some embodiments of the present invention, Figure 1 As shown, the cam 31 further includes a baffle, which is connected to the reversing transmission mechanism 50, and one end of the second elastic member 32 is connected to the baffle. The baffle is fixedly connected to the reversing transmission mechanism 50, and one end of the second elastic member 32 is fixedly connected to the baffle, and the baffle is suitable for pushing the cam 31 to rotate when the second elastic member 32 rotates. Therefore, the arrangement of the baffle can enhance the structural strength of the pushing mechanism 30, improve the matching stability between the second elastic member 32 and the reversing transmission mechanism 50, and extend the service life of the second elastic member 32.

[0072] According to some embodiments of the present invention, Figure 1 As shown, a rolling member is provided on the stopper 41, and the rolling member can rotate relative to the stopper 41, and the pushing mechanism 30 and the rolling member are rollingly matched. The rolling member is suitable for abutting against one end of the cam 31, and the cam 31 and the stopper 41 are matched through the rolling member. When the cam 31 rotates a certain angle under the drive of the second elastic member 32, the rolling member rotates relative to the cam 31 along the profile of the cam 31, and the contact point between the rolling member and the cam 31 moves along the profile of the cam 31, thereby realizing the movement process of the stopper 41 relative to the cam 31.

[0073] Therefore, a rolling member is provided on the limit member 41 to facilitate the limit member 41 to rotate relative to the cam 31 toward the side where the rotating member 43 is located when the cam 31 rotates. The setting of the rolling member can reduce the friction between the limit member 41 and the cam 31, reduce the energy loss generated during the relative movement between the cam 31 and the limit member 41, improve the smoothness of the relative movement between the cam 31 and the limit member 41, and enhance the stability and reliability of the pushing mechanism 30 during movement.

[0074] According to some embodiments of the present invention, Figure 1 As shown, the second elastic member 32 is a torsion spring. A torsion spring is a type of spring that is specially designed to store and release torsional torque (i.e., rotational force). When a torsion spring is subjected to an external torque, its wire material bends and deforms to store potential energy. Once the external force is removed, the torsion spring returns to its original state, releases the stored energy, and generates a torque in the opposite direction to that when loaded. Therefore, the second elastic member 32 is a torsion spring, which ensures that the torsion spring can transfer the torsional torque to the cam 31 to drive the cam 31 to rotate. The torsion spring is used to provide functions such as rebound, tension maintenance, vibration absorption, and torque transmission, which can ensure the functionality and reliability of the second elastic member 32 and provide mechanical support and functional realization for the rotation of the cam 31.

[0075] The parking system according to the second aspect of the present invention comprises: a plurality of reducers and at least one parking device 100, wherein the parking device 100 is the parking device 100 according to the first aspect of the present invention, and the rotating parts 43 of the plurality of parking mechanisms 20 of the parking device 100 are respectively arranged on the transmission shafts of the plurality of reducers.

[0076] The rotating parts 43 of the multiple parking mechanisms 20 of the parking device 100 are respectively arranged on the transmission shafts of multiple reducers. When the parking actuator 10 drives the pushing mechanism 30 to rotate, so that the limiter 41 cooperates with the rotating part 43, the rotating part 43 stops rotating, and the locking mechanism 40 is in the locking position. The rotating part 43 is arranged on the transmission shaft of the reducer, which can stop the transmission shaft of the reducer from rotating, thereby realizing the mechanical locking of the reducer and enabling the parking system to achieve the effective parking function. When the parking actuator 10 drives the pushing mechanism 30 to rotate at the opposite angle, so that the limiter 41 is separated from the rotating part 43, the locking mechanism 40 is in the unlocking position, the transmission shaft of the reducer can operate normally, and the parking function of the parking system is released.

[0077] According to the parking system of the embodiment of the utility model, by applying the parking device 100 of the above embodiment, the parking device 100 is connected to the reducer, and a parking actuator 10 in the parking device 100 can simultaneously control the operation of multiple parking mechanisms 20, thereby realizing that a single parking actuator 10 simultaneously controls the locking of multiple reducers, improving the synchronization effect of multiple reducers in the parking system, and realizing effective parking of the parking system. The parking device 100 has a simple structure, low production cost, and high space utilization, which can improve the overall reliability of the parking system, reduce the production cost of the parking system, and optimize the spatial layout of the parking system.

[0078] The vehicle according to the third aspect of the present invention comprises the parking device 100 according to the first aspect of the present invention or the parking system according to the second aspect of the present invention.

[0079] The vehicle has four working states: non-P gear, P gear, P gear and P gear released. The specific embodiments are described as follows:

[0080] When the vehicle is in a non-P gear state, the vehicle is running normally, and the second elastic member 32 keeps the cam 31 in the P gear through the reversing transmission mechanism 50. Figure 2 In the position shown, the limiting member 41 is in close contact with the cam 31 under the action of the first elastic member 46 and has a sufficient gap with the rotating member 43. At this time, the parking system will not affect the normal driving of the vehicle.

[0081] When the vehicle is in the P gear state, when the vehicle is traveling at a low speed (<5km / h) or parked, the driver engages the P gear (or presses the P gear lock button), the vehicle VCU (Vehicle Control Unit) receives the parking command and begins to determine whether the vehicle state meets the parking requirements (vehicle speed <5km / h). After the determination is satisfied, the VCU sends a parking action instruction to the parking actuator 10, and the parking actuator 10 receives the parking signal. Figure 3 , when the vehicle is going uphill Figure 3Taking the parking mechanism 20 located on the left side as an example, the parking actuator 10 outputs a rotational power of a specific angle, and transmits the rotational power to the second transmission shaft 52 through the reversing transmission mechanism 50. The second elastic member 32 drives the cam 31 to rotate counterclockwise at a certain angle, and the cam 31 pushes the limit member 41 and the first elastic member 46 to rotate in the direction close to the rotating member 43 until the matching portion 42 of the limit member 41 is matched in the matching groove 44 of the rotating member 43, and the right side surface of the matching portion 42 and the left side surface of the protrusion 45 of the rotating member 43 stop to limit the rotation of the rotating member 43, so that the locking mechanism 40 is in the locking position. The rotating member 43 cooperates with the transmission shaft of the reducer to achieve mechanical locking of the reducer. When the vehicle goes downhill, the rotation direction of the rotating member 43 is opposite to that when going uphill. When the parking mechanism 20 is working, the left side surface of the matching portion 42 of the limit member 41 and the right side surface of a protrusion 45 of the rotating member 43 stop to achieve the locking of the parking mechanism 20. Figure 3 The same is true for the parking mechanism 20 on the right side, and the states of other components are consistent with those when going uphill.

[0082] When the limit member 41 rotates, the matching portion 42 of the limit member 41 fails to directly enter the matching groove 44 but first contacts the top of the protrusion 45. The limit member 41 and the cam 31 have not reached the parking position, and the second elastic member 32 has rotated into place with the second transmission shaft 52. The cam 31 will receive the continuous elastic force applied by the second elastic member 32. When the rotating member 43 rotates a certain angle, the cam 31 can push the matching portion 42 of the limit member 41 into the matching groove 44 to achieve parking.

[0083] Combination Figure 3 When the rotation angles of the rotating parts 43 in the parking mechanisms 20 on the left and right sides are inconsistent and the limiting parts 41 on both sides cannot be inserted into the matching grooves 44 at the same time, the corresponding limiting parts 41 can also be inserted within a distance of less than one protrusion 45 when the rotating parts 43 that are not inserted are rotated, thereby achieving bilateral synchronization to a great extent, distributing the load borne by the parking mechanism 20 when the vehicle is parked, and improving the reliability of parking.

[0084] When the vehicle is in P gear, Figure 4 , when the vehicle is going uphill Figure 4 Taking the parking mechanism 20 on the left side as an example, the other end of the second limit member 41 fixes the cam 31 on Figure 4 In the position shown, the limiter 41 is pressed at the specified position by the cam 31, and the limiter 41 is in close contact with the protrusion 45 to limit the rotation of the rotating member 43. The parking mechanism 20 on the right is symmetrical with the left. The parking actuator 10 includes a self-locking mechanism. Before receiving the vehicle's P gear release instruction, the parking mechanism 20 will maintain the P gear state.

[0085] When the vehicle is in the P gear release state, when the driver is ready to release the P gear state and start the vehicle, the driver steps on the brake to move out of the P gear, and the vehicle VCU receives the release command and starts to determine whether the vehicle state meets the release requirements (the brake has been stepped on). If it is determined to be satisfied, the VCU sends a release action instruction to the parking actuator 10, and the parking actuator 10 receives the release signal. Figure 5 , when the vehicle is going uphill Figure 5 Taking the parking mechanism 20 on the left side as an example, the parking actuator 10 outputs a rotational force at an angle opposite to that during parking, which is transmitted to the second transmission shaft 52 through the reversing transmission mechanism 50. The other end of the second elastic member 32 drives the cam 31 to rotate clockwise at a certain angle. The limit member 41 is always in contact with the cam 31 under the thrust of the first elastic member 46 until the limit member 41 moves away from the rotating member 43 and reaches the standby position. The parking mechanism 20 on the right side is symmetrical with the left side.

[0086] According to the vehicle of the embodiment of the utility model, by applying the parking device 100 or the parking system described in the above embodiment, the reliability and stability of the vehicle when parking can be effectively improved, the safety of the vehicle when parking can be improved, the durability of the vehicle can be enhanced, the service life of the vehicle can be extended, the production cost of the vehicle can be reduced, the internal layout of the vehicle can be optimized, and the user experience can be improved.

[0087] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0088] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0090] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A parking device, characterized in that: include: Parking actuator; Multiple parking mechanisms, each of which includes a pushing mechanism and a locking mechanism, the pushing mechanisms of the multiple parking mechanisms are all connected to the parking actuator, the parking actuator is suitable for driving the pushing mechanism to move, the locking mechanism includes a limit member and a rotating member, the limit member is stopped against the pushing mechanism, and the pushing mechanism is suitable for driving the limit member and the rotating member to detachably cooperate.

2. The parking device according to claim 1, characterized in that: A plurality of matching grooves are formed on the rotating member, and the plurality of matching grooves are arranged at intervals along the circumference of the rotating member; The limiting member includes a matching portion, and the matching portion is detachably matched with any one of the plurality of matching grooves.

3. The parking device according to claim 2, characterized in that: The limiting member is a limiting rod, one end of which is located between the pushing mechanism and the rotating member, and the matching portion is provided at the one end of the limiting rod; The parking device further comprises a first elastic member, the first elastic member abuts against the limiting rod, and the first elastic member constantly pushes the limiting rod in a direction away from the rotating member so that the matching portion is adapted to be separated from the matching groove.

4. The parking device according to claim 3, characterized in that: The locking mechanism has a locking position where the matching groove matches the matching portion and an unlocking position where the matching groove is separated from the matching portion. The pushing mechanism drives the limiting member to make the matching portion match with the matching groove so that the locking mechanism is located in the locking position. When the pushing mechanism moves in a direction away from the limiting member and the first elastic member drives the limiting member to separate the matching portion from the matching groove, the locking mechanism is located in the unlocking position.

5. The parking device according to claim 3, characterized in that: The first elastic member is a spring.

6. The parking device according to claim 1, characterized in that: The limiting member is a pawl, and the rotating member is a ratchet.

7. The parking device according to claim 1, characterized in that: Also includes: A reversing transmission mechanism is provided between the parking actuator and the pushing mechanisms of the plurality of parking mechanisms, and the reversing transmission mechanism cooperates with the parking actuator and the pushing mechanisms of the plurality of parking mechanisms respectively.

8. The parking device according to claim 7, characterized in that: The reversing transmission mechanism comprises: a first transmission shaft, one end of which cooperates with the parking actuator; The second transmission shaft cooperates with the other end of the first transmission shaft through a reversing mechanism, and both ends of a plurality of the second transmission shafts cooperate with the pushing mechanisms of a plurality of the parking mechanisms respectively.

9. The parking device according to claim 8, characterized in that: The second transmission shaft includes two sub-transmission shafts, which are coaxially arranged. The ends of the two sub-transmission shafts that are away from each other are respectively matched with the corresponding pushing mechanisms, and the ends of the two sub-transmission shafts that are close to each other are both matched with the reversing mechanism.

10. The parking device according to claim 9, characterized in that: The reversing mechanism comprises a transmission gear, and ends of the two sub-transmission shafts close to each other are both key-connected to the transmission gear.

11. The parking device according to claim 7, characterized in that: The reversing transmission mechanism is a worm gear mechanism, a bevel gear pair mechanism or a spur gear-face gear pair mechanism.

12. The parking device according to claim 8, characterized in that: The driving mechanism comprises: A cam, one end of which is abutted against the stopper, and the other end of which is pivotally connected to the second transmission shaft; A second elastic member, one end of which is connected to the reversing transmission mechanism, and the other end of which is abutted against the cam to drive the cam to rotate toward the side where the rotating member is located.

13. The parking device according to claim 12, characterized in that: Also includes: A baffle is connected to the reversing transmission mechanism, and one end of the second elastic member is connected to the baffle.

14. The parking device according to any one of claims 1 to 13, characterized in that: The limiting member is provided with a rolling member, the rolling member is rotatable relative to the limiting member, and the pushing mechanism is in rolling cooperation with the rolling member.

15. The parking device according to claim 12, characterized in that: The second elastic member is a torsion spring.

16. A parking system, characterized in that: include: Multiple reducers; At least one parking device, wherein the parking device is a parking device according to any one of claims 1 to 15, and the rotating parts of the multiple parking mechanisms of the parking device are respectively arranged on the transmission shafts of the multiple reducers.

17. A vehicle, characterized in that: The method comprises the parking device according to any one of claims 1 to 15 or the parking system according to claim 16.

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