P-shift execution device and vehicle having the same

Abstract

The present disclosure provides a P-gear execution device and a vehicle with the same, and relates to the field of automobile safety and automatic driving. The P-gear execution device comprises a movement component, a driving component and a ratchet. An upper section of the movement component is movably arranged in the driving component, and the driving component drives the movement component to move relative to the driving component based on the principle of minimum magnetic resistance. During the movement of the movement component, a lower section of the movement component and the ratchet change between a locking state and a separation state. In the present disclosure, the driving component directly drives the rotating component, thereby reducing the transmission mechanism. The P-gear execution device has a simple structure, requires a small installation space, and at the same time reduces the parking time and improves the parking response speed.

Description

Technical Field

[0001] This disclosure relates to the fields of automobiles and autonomous driving, specifically to the field of parking mechanisms, and more particularly to a P-gear actuator and a vehicle having a P-gear actuator. Background Technology

[0002] The P-gear actuator is a parking mechanism used to brake the wheels of a vehicle when it is parked. Existing P-gear actuators are bulky and require significant installation space in the vehicle. Summary of the Invention

[0003] This disclosure provides a P-gear actuator and a vehicle having a P-gear actuator.

[0004] According to a first aspect, a P-gear actuator is provided, comprising: a motion component, a drive component, and a ratchet; the upper section of the motion component is movably disposed within the drive component, and the drive component drives the motion component to move relative to the drive component based on the principle of minimum magnetic resistance; during the movement of the motion component, the lower section of the motion component changes between a locked state and a disengaged state with the ratchet.

[0005] According to the second aspect, a vehicle with a P gear actuator is provided, wherein the vehicle is provided with the P gear actuator described in any implementation of the first aspect.

[0006] According to the technology disclosed herein, a P-gear actuator is provided. By means of a movable connection between a drive component and a rotating component, the axial rotation of the motion component driven by the drive component based on the principle of minimum magnetic reluctance is changed into the movement of the motion component relative to the drive component. This causes the lower section of the motion component to change between a locked state and a disengaged state with the ratchet, thereby realizing the parking process of the vehicle. Since the drive component directly drives the rotating component, the transmission mechanism is reduced. The P-gear actuator has a simple structure, requires little installation space, and at the same time reduces the parking time and improves the parking response speed.

[0007] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0008] The accompanying drawings are provided to better understand this solution and do not constitute a limitation of this disclosure. Wherein:

[0009] Figure 1 The present disclosure shows a schematic diagram of the structure of the P gear actuator;

[0010] Figure 2 This is a cross-sectional view of the P-gear actuator according to this embodiment;

[0011] Figures 3A-3B This is a schematic diagram illustrating the generation of magnetic drag torque according to this embodiment;

[0012] Figure 4 This is a schematic diagram of the P-gear actuator in the locked state according to this embodiment;

[0013] Figure 5 This is a schematic diagram of the P-gear actuator in the disengaged state according to this embodiment;

[0014] Figure 6 This is a schematic diagram of the P-gear actuator under a special state according to this embodiment. Detailed Implementation

[0015] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0016] The collection, storage, use, processing, transmission, provision, and disclosure of user personal information involved in the technical solution disclosed herein comply with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0017] refer to Figure 1 The diagram shows a schematic of the P-gear actuator. The P-gear actuator includes a motion component 101, a drive component 102, and a ratchet 103. The upper section of the motion component 101 is movably disposed within the drive component 102, which drives the motion component 101 relative to itself based on the principle of minimum magnetic reluctance. During the movement of the motion component 102, the lower section of the motion component 101 changes between a locked state and a disengaged state with the ratchet 103.

[0018] The principle of minimum magnetic reluctance states that magnetic flux always closes along the path of least magnetic permeability, thus generating magnetic pull and forming electromagnetic torque with reluctance properties. In other words, magnetic field lines inherently strive to shorten the magnetic flux path to reduce magnetic reluctance and increase magnetic permeability. Based on this magnetic pull, the moving component 101 can rotate within the driving component 102, and based on the movable connection between the moving component 101 and the driving component 102, the axial rotation of the moving component 101 can be converted into axial movement. Two axial rotation processes in opposite directions can be converted into axial movements in opposite directions. For example, clockwise axial rotation is converted into downward axial movement, and counterclockwise axial rotation is converted into upward axial movement.

[0019] The axial movement of the motion component 101 causes its lower section to extend outward or retract inward, thereby changing the relationship between the lower section of the motion component 101 and the ratchet 103 between a locked state and a disengaged state. The ratchet 103 can be fixedly mounted on the drive shaft of the vehicle's powertrain, thus enabling the vehicle to switch between a parked and non-parked state.

[0020] In this embodiment, a movable connection between the motion component 101 and the drive component 102 can be achieved based on a helical mechanism. As an example, the drive component has a receiving cavity adapted to the motion component, and a connecting shaft is located at the center of the receiving cavity; the motion component has a connecting cavity adapted to the connecting shaft; the motion component is placed within the receiving cavity of the drive component, and the connecting shaft of the drive component is placed within the connecting cavity of the motion component. The connecting shaft of the drive component is movably connected to the cavity wall of the connecting cavity of the motion component via a helical mechanism. Thus, the axial rotation of the motion component within the drive component is transformed into movement relative to the drive component.

[0021] In this embodiment, a P-gear actuator is provided. By using a movable connection between the drive component and the rotating component, the axial rotation of the motion component driven by the drive component based on the principle of minimum magnetic reluctance is changed to the movement of the motion component relative to the drive component. This causes the lower section of the motion component to change between a locked state and a disengaged state with the ratchet, thereby realizing the parking process of the vehicle. Since the drive component directly drives the rotating component, the transmission mechanism is reduced. The P-gear actuator has a simple structure, requires little installation space, and at the same time reduces the parking time and improves the parking response speed.

[0022] Continue to refer to Figure 2 The diagram shows a cross-sectional view of the drive assembly in the P gear actuator. Multiple drive protrusions 1021 are axially arranged within the drive assembly 102, and magnetoresistive coils 1022 are mounted on the drive protrusions. The upper section of the motion assembly 101 is provided with multiple motion protrusions 1011 that are adapted to the multiple drive protrusions 1021.

[0023] In this implementation, the motion component and the drive component adopt a double salient pole structure and can be made of a magnetically conductive material.

[0024] Continue to refer to Figures 3A-3B The diagram illustrates the generation of magnetic drag torque. When the direct axis (d-axis) of the moving component coincides with the center line of the magnetic poles of the moving component, the magnetic field lines and the direct axis pass parallel to each other through the air gap between the moving protrusion of the moving component and the driving protrusion of the driving component. However, when the moving component is in... Figure 3B At the position shown, the magnetic field lines are skewed, and the magnetic resistance of a closed loop of magnetic field lines should be minimized, thus generating a tangential force F, i.e., magnetic pull. Under the action of the tangential force F, the moving component rotates counterclockwise, attempting to return to its original position. Figure 3A The state of the moving components. When the moving components are three-phase, two-phase or single-phase capacitors operating in separate phases, a rotating magnetic field is generated in space. The rotation of the rotating magnetic field can be specifically manifested as the magnetic poles N and S rotating in space, and the rotor rotating along the direction of the rotating magnetic field under the action of the tangential force F.

[0025] like Figure 2 The driving assembly shown includes eight driving protrusions, which together form four pairs of driving protrusions. Each pair of driving protrusions includes two opposing driving protrusions. In the specific implementation, by energizing each of the four pairs of driving protrusions, a rotating magnetic field can be generated, thereby controlling the rotation of the moving assembly.

[0026] In this implementation, for ease of magnetic field control, multiple driving protrusions are evenly distributed on the inner surface of the driving component, and multiple moving protrusions are evenly distributed on the outer periphery of the moving component. It should be noted that the number of driving protrusions in the driving component is not limited to 8, and the number of moving protrusions in the moving component is not limited to 6. For example, the number of driving protrusions in the driving component and the number of moving protrusions in the moving component can also be 10 and 8, respectively.

[0027] This implementation provides a method for implementing the principle of minimum magnetic resistance for the motion component and the drive component to drive the motion component to move relative to the drive component. The structure is simple and can quickly drive the motion component to rotate, further improving the parking response speed.

[0028] Continue to refer to Figure 4-6 The diagram shows the structural schematics of the P gear actuator in different states.

[0029] In some optional implementations of this embodiment, the top of the upper section of the motion component 101 is movably connected to the drive component 102 by a threaded connection.

[0030] As an example, the outer surface of the top of the upper section of the motion component and the inner surface of the top of the drive component are provided with matching threads.

[0031] In this implementation, a movable connection between the motion component and the drive component is achieved based on a threaded connection, which facilitates the fine control of the motion component from a rotation process to a movement process, and helps to further improve the controllability and accuracy of the motion component.

[0032] In some optional implementations of this embodiment, the motion component 101 includes a motion element 1012, an elastic element 1013, and a slide bar 1014. One end of the motion element 102 is movably disposed within the drive component, and the other end of the motion element extends outside the drive component 102; the other end of the motion element 101 is connected to the slide bar 1014 via the elastic element 1013.

[0033] Specifically, the moving component 1012 adopts a cylindrical structure, and multiple moving protrusions are evenly arranged axially on the outer surface of the moving component 1012. The elastic component can be a device that provides elasticity, such as a spring. By buffering the pressure applied to the ratchet 103 by the elastic component 1013 and the slide bar 1014, the locking state between the moving component and the ratchet is ensured, while protecting the moving component and the ratchet, which helps to improve the service life of the P-gear actuator.

[0034] In some optional implementations of this embodiment, the other end of the moving member 1012 is provided with an axially arranged sliding cavity 1015 adapted to the slide rod 1014; the moving member 1012 is movably connected to the slide rod 1014 through an elastic member 1013 provided in the sliding cavity 1015.

[0035] By restricting the slide rod by the slide cavity 1015, the slide rod 1014 can only move up and down along the slide cavity 1015. While the elastic element 1013 buffers the pressure applied between the slide rod 1014 and the ratchet 103, it limits the extension and retraction direction of the slide rod 1014, thereby improving the effectiveness of the extension and retraction process.

[0036] In some optional implementations of this embodiment, the slide bar 1014 has a slide bar protrusion near the end of the ratchet 103 that is adapted to the groove of the ratchet 103.

[0037] In this implementation, the slide bar protrusion matches the ratchet groove, ensuring that the P gear actuator reliably abuts against the ratchet in the locked state, thus improving the reliability of the P gear actuator in the locked state.

[0038] In some optional implementations of this embodiment, the P-gear actuator further includes a magnetic detection component 104. The magnetic detection component 104 includes a magnetic element 1041 and a magnetic detection element 1042; the magnetic element 1041 is disposed at the top of the upper section of the motion component 101; the magnetic detection element 1042 is disposed within the drive component 102, near the top of the upper section of the motion component 101.

[0039] When the magnetic component 1041 on the motion assembly 2 approaches or moves away from the magnetic detection component 1042, the magnetic detection component 1042 can determine the position of the magnetic component 1041, thereby providing feedback to the vehicle controller whether the P gear actuator is in the disengaged or disengaged state.

[0040] In this implementation, the P-gear actuator is equipped with a magnetic detection component for feedback on the release or disengagement status of the P-gear, thereby providing timely feedback on the current status of the P-gear actuator and improving the intelligence level of the P-gear actuator.

[0041] In some optional implementations of this embodiment, the P-gear actuator further includes a manual drive assembly 105. The manual drive assembly includes a manual drive rocker and a drive groove 1051; the drive groove 1051 is disposed at the top of the upper section of the motion assembly 101; the manual drive rocker is provided with a drive part adapted to the drive groove 1051.

[0042] In abnormal situations, the vehicle may not be able to automatically switch to a non-P gear due to a malfunction, that is, the movement component is separated from the ratchet. In this case, the drive part of the manual drive rocker can be inserted into the drive slot. By rotating the manual drive rocker, the movement component is rotated, so that the movement component in the locked state is separated from the ratchet, and the vehicle is switched to a non-P gear.

[0043] In this implementation, the P gear actuator includes a manual drive component to ensure the P gear switching process in abnormal vehicle conditions, supports manual unlocking, and solves the technical problem that the vehicle cannot be moved because it cannot be switched to a non-P gear state due to a malfunction.

[0044] In some optional implementations of this embodiment, a drive component encapsulation shell 1043 is provided on the end of the drive component near the drive slot, which can be opened and closed. In the normal state of the vehicle, the drive component encapsulation shell 1043 is fastened to the drive component 102 to protect the drive component 102 and the motion component 101; in the abnormal state of the vehicle, the vehicle user can open the drive component encapsulation shell 1043 and rotate the manual drive rocker to drive the motion component 101 to rotate, so that the motion component 101 in the locked state is separated from the ratchet 103, and the vehicle is switched to a non-P gear state.

[0045] In this implementation, the practicality of the P-type actuator and the convenience of manual driving are further improved by using an openable and closable drive component enclosure on the drive component.

[0046] In some optional implementations of this embodiment, the P-gear actuator further includes: a low-voltage wiring harness connector 1044; the low-voltage wiring harness connector is connected to the drive assembly and is used to supply power to the reluctance coil in the drive assembly.

[0047] As an example, the low-voltage wiring harness connector 1044 can be disposed on the drive assembly package and connected to the power supply control circuit of the reluctance coil to energize the reluctance coil on the target drive protrusion pair among the plurality of drive protrusion pairs in the drive assembly.

[0048] In this implementation, the reluctance coil of the drive component is energized based on the low-voltage wiring harness connector, which improves the effectiveness and reliability of the power supply to the P-gear actuator.

[0049] Continue to refer to Figure 4The diagram shows the structure of the P-gear actuator in the locked state. The drive assembly 102 is connected to the outside world via a low-voltage wiring harness connector 1044 to obtain external power, driving the motion assembly 101 to rotate. Based on its threaded connection with the drive assembly 102, the motion assembly 101 converts the axial rotation process into an axial downward movement process. The slide protrusion of the slide rod 1014 engages in the groove of the ratchet 103, thus locking the P-gear actuator. At this time, the magnetic component 1041 and the magnetic detection component 1042 in the detection assembly 104 separate. The magnetic detection component 1042 can determine the first position of the magnetic component 1041 and report to the vehicle controller that the P-gear actuator is in the locked state.

[0050] Continue to refer to Figure 5 The diagram shows the structure of the P-gear actuator in the disengaged state. The drive assembly 102 is connected to the outside world via a low-voltage wiring harness connector 1044 to obtain external power, driving the motion assembly 101 to rotate in the opposite direction. Based on its threaded connection with the drive assembly 102, the motion assembly 101 converts the axial rotation process into an axial upward process. The slide bar 1014 retracts from the groove of the ratchet 103, thus disengaging the P-gear actuator. At this time, the magnetic component 1041 and the magnetic detection component 1042 in the detection assembly 104 are close together. The magnetic detection component 1042 can determine the second position of the magnetic component 1041 and report to the vehicle controller that the P-gear actuator is in the disengaged state.

[0051] Continue to refer to Figure 6 The diagram illustrates the structure of the P-gear actuator in a special state. Because ratchet 103 is fixedly connected to the shaft in the vehicle's powertrain and rotates with the powertrain shaft, a situation arises where the protrusion of ratchet 103 aligns with the protrusion of slide bar 1014, preventing the P-gear actuator from locking. At this time, due to the threaded design at the top of the moving part 1012 in the moving assembly 101, the moving part 1012 self-locks and does not move upwards. Slide bar 1014 is pressed against the protrusion of ratchet 103, retracting into the slide cavity 1015 of the moving part 1012 and compressing the elastic element 1013. When the vehicle wheels move, they drive the powertrain shaft to rotate. Because ratchet 103 is fixedly connected to the powertrain shaft, ratchet 103 also rotates. When the groove of the ratchet 103 is opposite to the slide bar protrusion of the slide bar 1014, the slide bar 1014 slides into the groove of the ratchet 103 under the elastic force of the elastic element 1013, thus completing the locking of the P gear actuator.

[0052] This embodiment provides a vehicle with a P gear actuator, wherein the vehicle is equipped with the P gear actuator characterized in the above embodiment.

[0053] In this embodiment, the ratchet in the P gear actuator is fixedly mounted on the shaft of the vehicle's powertrain. When the moving component and the ratchet are locked, the vehicle is in a parked state; when the moving component and the ratchet are separated, the vehicle is in a movable state.

[0054] In this implementation, the vehicle can install the P gear actuator with a small installation space. Since the drive component in the P gear actuator directly drives the rotating component, the transmission mechanism is reduced, the parking time of the vehicle is reduced, and the parking response speed is improved.

[0055] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A P-gear actuator, characterized in that, include: Motion components, drive components, and ratchet; The upper section of the motion component is movably disposed within the drive component. The drive component has a plurality of drive protrusions axially disposed within it. A magnetic reluctance coil is disposed on each drive protrusion. The upper section of the motion component has a plurality of motion protrusions adapted to the plurality of drive protrusions. The rotating magnetic field formed by the plurality of driving protrusions and the plurality of moving protrusions when the reluctance coil is energized drives the moving component to rotate axially within the driving component based on the principle of minimum reluctance. Based on the movable connection between the moving component and the driving component, the axial rotation of the moving component is changed to the movement of the moving component relative to the driving component. The motion assembly includes a moving element, an elastic element, and a slide bar. One end of the moving element is movably disposed within the drive assembly, and the other end extends outside the drive assembly. The other end has an axially arranged sliding cavity adapted to the slide bar, and is connected to the slide bar through the elastic element disposed in the sliding cavity. The slide bar has a slide bar protrusion adapted to the groove of the ratchet at its end near the ratchet. During the movement of the motion component, the lower section of the motion component changes between a locked state and a disengaged state with the ratchet; wherein, when the ratchet rotates to the point where the protrusion of the ratchet is opposite to the protrusion of the slide bar, the motion component self-locks, and the slide bar is pushed back into the slide cavity by the protrusion of the ratchet and compresses the elastic element; when the ratchet continues to rotate to the point where the groove of the ratchet is opposite to the protrusion of the slide bar, the slide bar slides into the groove of the ratchet under the elastic force of the elastic element, completing the locked state.

2. The apparatus according to claim 1, characterized in that: The top of the upper section of the motion component is movably connected to the drive component via a threaded connection.

3. The apparatus according to claim 1 or 2, characterized in that: The moving part is movably connected to the slide rod via the elastic element.

4. The apparatus according to claim 1 or 2, characterized in that: It also includes: a magnetic detection component; The magnetic detection component includes a magnetic element and a magnetic detection element; The magnetic component is disposed at the top of the upper section of the motion assembly; The magnetic detection element is disposed within the drive assembly, near the top of the upper section of the motion assembly.

5. The apparatus according to claim 1, characterized in that: Also includes: Low-voltage wiring harness connectors; The low-voltage wiring harness connector is connected to the drive assembly and is used to supply power to the reluctance coil in the drive assembly.

6. The apparatus according to claim 1 or 2, characterized in that: Also includes: manual drive components; The manual drive assembly includes: a manual drive joystick and a drive slot; The drive groove is located at the top of the upper section of the motion component; The manual drive rocker is provided with a drive part that is adapted to the drive slot.

7. The apparatus according to claim 6, characterized in that: The drive component is provided with an openable and closable encapsulation shell at the end near the drive slot.

8. A vehicle having a P gear actuator, characterized in that: The vehicle is equipped with a P gear actuator according to any one of claims 1-7.

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