Braking device and vehicle

Abstract

The utility model discloses a kind of brake device and traffic tool, brake device includes: shell, shell is equipped with opening;Brake force applying element, brake force applying element is equipped in the outside of shell;Motion conversion assembly, motion conversion assembly is equipped in shell, and including moving element, rotating element and transmission element, moving element is equipped in opening and along linear motion, moving element is connected with brake force applying element, rotating element is rotatably equipped in shell, and is moved linkage with moving element by transmission element;Reset element, reset element is equipped between shell and moving element along the moving direction of moving element, and is configured to make moving element reset after brake force applying element is separated from external force;At least two detection components, at least two detection components are used to detect the displacement of at least one of moving element and rotating element and can transmit detection information outward.The utility model can improve the accuracy and reliability of detection, and the requirement of detection displacement amount to detection component is lower, and manufacturing cost can be reduced.

Description

Technical Field

[0001] This application relates to the field of braking device technology, and in particular to a braking device and a vehicle. Background Technology

[0002] In recent years, new energy vehicles have experienced rapid development. In the field of electric vehicles, with the introduction and development of intelligent autonomous driving technology, some vehicle components are required to achieve intelligent control. The micro-stroke linear control brake pedal, as a vehicle braking device, is beneficial for achieving intelligent braking control. However, the travel of the micro-stroke linear control brake pedal is very small, typically only 10mm of linear displacement. Under the constraint of a 10mm linear motion mechanism, the micro-stroke linear control brake pedal suffers from reliability issues. Therefore, how to further improve the reliability of the micro-stroke linear control brake pedal has become one of the urgent problems to be solved. Utility Model Content

[0003] This application provides a braking device and a vehicle that can effectively improve the operational reliability of the braking device.

[0004] In a first aspect, embodiments of this application provide a braking device, comprising: a housing having an opening; a braking force-applying member disposed on the outside of the housing; a motion conversion assembly disposed within the housing and including a moving member, a rotating member, and a transmission member, the moving member passing through the opening and moving linearly, the moving member being connected to the braking force-applying member, the rotating member being rotatably disposed within the housing and movingly linked with the moving member through the transmission member; a reset member disposed between the housing and the moving member along the moving direction of the moving member and configured to reset the moving member after the braking force-applying member is freed from external force; and at least two detection components for detecting the displacement of at least one of the moving member and the rotating member and for transmitting detection information outward.

[0005] In the above technical solution, the motion conversion component can convert the micro-stroke of the braking force-applying component into linear and rotational motion, and detect the displacement of the moving and / or rotating components through at least two detection components. Compared with the method of using force sensors for detection, this solution can more easily capture the displacement of the moving and / or rotating components, reducing the detection difficulty, improving detection accuracy, and thus improving detection reliability. At the same time, at least two detection components can also achieve redundant detection, which can reduce the risk of failure to detect or inaccurate detection structure due to malfunction, further improving the accuracy and reliability of detection. Moreover, the method of detecting displacement has lower requirements for the detection components, which can reduce manufacturing costs.

[0006] In some embodiments of this application, the braking device includes an elastic limiting member disposed within the housing and spaced at least partially from the moving member along its direction of movement to limit the displacement of the moving member. In the above technical solution, the elastic limiting member reduces the risk of damage due to contact with other components caused by a large travel distance of the moving member, thereby improving the reliability of the components inside the housing and ultimately enhancing the overall reliability of the device.

[0007] In some embodiments of this application, the movable component includes a cover and a guide rod. The cover fits against the inner wall of the periphery of the housing and closes the opening. The guide rod passes through the cover and is connected to the braking force application component. The guide rod moves in conjunction with the rotating component through the transmission component. The elastic limiting component and the cover are spaced apart along the moving direction of the movable component.

[0008] In the above technical solution, the moving parts with the above structure can improve the overall movement stability, save materials, reduce the weight of the whole device, save internal space of the housing, facilitate the arrangement of other parts, and better limit the stroke range of the braking force application parts, thereby improving the manufacturability of the whole device.

[0009] In some embodiments of this application, the braking device includes a support base, which is disposed inside and fixed to the housing. An elastic limiting member is disposed on the side of the support base near the cover. One end of the resetting member abuts against the cover and the other end abuts against the support base. The support base has a through hole, through which a guide rod passes.

[0010] In the above technical solution, the internal structure of the housing can be simplified by using a support base, which facilitates the installation of rotating and transmission components, and provides support and installation environment for the installation of reset components, elastic limiting components and moving components. This can reduce assembly difficulty, improve the manufacturability of the braking device, and reduce manufacturing costs.

[0011] In some embodiments of this application, the braking device includes a damping element, which is annular and fitted inside a through hole, and the damping element is fitted outside a guide rod. In the above technical solution, the damping element can provide damping effect on the movement of the guide rod, thereby providing a damping feel to the force applied by the braking force-applying element, which is beneficial to improving the user experience of the braking device during micro-stroke processes.

[0012] In some embodiments of this application, the through hole includes a first segment and a second segment. The first segment is located on the side of the second segment near the cover, and the diameter of the first segment gradually decreases in the direction from the cover towards the damping element. The damping element includes a first damping portion and a second damping portion. The first damping portion is located on the side of the second damping portion near the cover and fits within the first segment. In the direction from the first segment to the second segment, at least a portion of the outer diameter of the first damping portion gradually decreases. In the above technical solution, by using the through hole and damping element with the above structure, the damping force provided by the damping element can remain consistent at first during the movement of the guide rod, and then gradually increase. This is beneficial for further improving the damping feel during the application of force by the braking force application element, simulating a more realistic usage situation, and improving the user experience.

[0013] In some embodiments of this application, the transmission component includes a first link and a second link. One end of the first link is hinged to the moving component, and the other end is hinged to the second link. The second link is fixedly connected to the rotating component. In the above technical solution, the transmission component with the above structure can convert the linear motion of the moving component into the rotational motion of the rotating component through the link mechanism. This type of transmission component has a relatively small size, saving space and contributing to the miniaturization of the overall braking device. Furthermore, it has a simple structure, high reliability, and can improve the reliability of the braking device.

[0014] In some embodiments of this application, at least two detection components are used to detect moving parts, and both are Hall linear displacement detection components; or, at least two detection components are used to detect rotating parts, and are Hall angular displacement detection components or eddy current angular displacement detection components; or, at least one part of the at least two detection components is used to detect rotating parts, and is a Hall angular displacement detection component or an eddy current angular displacement detection component, and the other part is used to detect rotating parts, and is a Hall linear displacement detection component.

[0015] In the above technical solutions, at least two detection components can have multiple design schemes to adapt to different application requirements and expand the scope of application. Whether using Hall angular displacement detection components, Hall linear displacement detection components, or eddy current angular displacement detection components, compared with force sensors, braking devices can use these detection components with better detection stability and reliability, which can not only improve the reliability of the device but also reduce costs.

[0016] In some embodiments of this application, at least two detection components include a first detection component and a second detection component. The first detection component includes a first test piece and a first detection piece. The first test piece is disposed on a moving part and is a magnetic part. The first detection piece is a Hall linear sensor. The second detection component includes a second test piece and a second detection piece. The second test piece is disposed on a rotating part and is a metal part including at least one tooth. The second detection piece is an eddy current angle sensor.

[0017] In the above technical solution, the linear displacement of the moving part and the angular displacement of the rotating part can be detected simultaneously, and the two motion forms adopt different detection methods, thereby realizing heterogeneous redundancy of detection methods and further improving the overall detection stability and reliability of the braking device.

[0018] In some embodiments of this application, at least two detection components include a base plate, a first connector, and a second connector. The first and second detection components are disposed on the base plate. The first connector is electrically connected to the first detection component, and the second connector is electrically connected to the second detection component. In the above technical solution, the first and second detection components are centrally arranged on the same base plate, which helps to reduce the assembly steps of all components and improve assembly efficiency. The first connector enables signal input and output between the first detection component and external devices, as well as power supply and grounding. The second connector enables signal input and output between the second detection component and external devices, as well as power supply and grounding.

[0019] In some embodiments of this application, the housing has a first housing wall located on one side of the moving direction of the moving member. The wall thickness of the first housing wall is the thinnest compared to the wall thickness of the other housing walls. The first test member and the second test member are disposed close to the first housing wall, and the base plate is disposed on the first housing wall.

[0020] In the above technical solution, since the first tested component is a magnetic component and the first detection component is a Hall linear sensor, it needs to detect the induced magnetic field. The second tested component is a metal component including at least one tooth, and the second detection component is an eddy current angle sensor, which needs to detect the cutting magnetic field. By making the first shell wall near the first and second tested components relatively thin, the influence of a larger wall thickness on the detection of the first and second detection components can be reduced, thus improving the accuracy of the detection. Furthermore, it helps to save material usage in the shell, reduce the weight of the shell, and consequently reduce the weight of the braking device, facilitating transportation and assembly.

[0021] In some embodiments of this application, the travel range of the braking force-applying member in the moving direction of the moving member is less than or equal to 10 mm. It is understood that the braking device has a small braking stroke and is a micro-stroke braking device.

[0022] Secondly, embodiments of this application also provide a vehicle, including the braking device as described above.

[0023] In the above technical solution, since the braking device can improve the accuracy and reliability of detection and reduce manufacturing costs, vehicles using this braking device can also improve the user experience and reduce costs. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 The transportation means provided in some embodiments of this application are structural schematic diagrams of vehicles;

[0026] Figure 2 Exploded views of the braking device provided in some embodiments of this application;

[0027] Figure 3 This is a three-dimensional structural schematic diagram of a braking device provided in some embodiments of this application;

[0028] Figure 4 Cross-sectional view of a braking device provided in some embodiments of this application Figure 1 ;

[0029] Figure 5 for Figure 4 A magnified view of part I;

[0030] Figure 6 Cross-sectional view of a braking device provided in some embodiments of this application Figure 2 .

[0031] icon:

[0032] 1000, vehicles;

[0033] 100. Braking device;

[0034] 10. Shell;

[0035] 10a. Opening; 101. First shell wall; 10b. Step; 10c. Assembly hole;

[0036] 20. Motion conversion components;

[0037] 21. Moving parts;

[0038] 211. Cap; 212. Guide rod; 2121. First rod section; 2122. Second rod section;

[0039] 22. Rotating components;

[0040] 23. Transmission component; 231. First connecting rod; 232. Second connecting rod;

[0041] 30. Braking force application component; 40. Reset component;

[0042] 50. Detection components;

[0043] 501, First detection component; 5011, First test piece; 5012, First detection piece;

[0044] 502, Second detection component; 5021, Second test piece; 50211, Tooth; 5022, Second detection piece;

[0045] 503, Base plate; 503a, Mounting hole; 504, First connector; 505, Second connector;

[0046] 60. Flexible limiting component;

[0047] 70. Support base;

[0048] 70a, limiting groove; 701, through hole; 7011, first hole section; 7012, second hole section;

[0049] 80. Damping components;

[0050] 81. First damping section; 82. Second damping section;

[0051] 200, Controller; 300, Motor; 400, Battery; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0054] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0057] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0058] In this application, "multiple" means two or more (including two).

[0059] In recent years, new energy vehicles have experienced rapid development. In the field of electric vehicles, with the introduction and development of intelligent autonomous driving technology, some vehicle components are required to achieve intelligent control. Micro-travel linear control pedals, as a vehicle braking device, are beneficial for achieving intelligent braking control. However, micro-travel linear control pedals have a very small travel, typically only 10mm of linear displacement. Under the constraint of this 10mm linear motion mechanism, micro-travel linear control pedals suffer from reliability issues. Therefore, how to further improve the reliability of micro-travel linear control pedals has become one of the urgent problems to be solved. In typical micro-travel linear control pedals, to achieve heterogeneous redundancy of sensors, Hall effect linear sensors and force sensors are often used to detect changes in pedal position and identify driver intentions. Because force sensors are greatly affected by the environment, many application scenarios require periodic calibration, resulting in poor stability and thus affecting the reliability of micro-travel linear control pedals.

[0060] Based on the above considerations, in order to solve the reliability problem of the braking force application component used for micro-stroke line control, the applicant designed a braking device, including a housing, a motion conversion component, a reset component, a braking force application component, and at least two detection components. The housing has an opening; the braking force application component is located on the outside of the housing; the motion conversion component is located inside the housing and includes a moving component, a rotating component, and a transmission component. The moving component passes through the opening and moves in a straight line. The moving component is connected to the braking force application component. The rotating component is rotatably located inside the housing and moves in conjunction with the moving component through the transmission component; the reset component is located between the housing and the moving component along the moving direction of the moving component and is configured to reset the moving component after the braking force application component is removed from the external force; the at least two detection components are used to detect the displacement of at least one of the moving component and the rotating component and can transmit the detection information outward.

[0061] In this braking device structure, the motion conversion component converts the micro-stroke of the braking force-applying component into linear and rotational motion. At least two detection components detect the displacement of the moving and / or rotating components. Compared to using force sensors, this approach more easily captures the displacement of the moving and / or rotating components, reducing detection difficulty, improving accuracy, and thus enhancing reliability. Furthermore, the presence of at least two detection components enables redundant detection, reducing the risk of detection failures or inaccurate detection due to malfunctions, further improving accuracy and reliability. Moreover, detecting displacement places lower demands on the detection components, reducing manufacturing costs.

[0062] The braking device disclosed in this application can be used, but is not limited to, in vehicles, ships, aircraft, two-wheeled or three-wheeled motorcycles, two-wheeled or three-wheeled electric vehicles, and other means of transportation. This expands the applicability of the braking device. The vehicle can be, but is not limited to, a pure electric vehicle, a hybrid vehicle, etc., and can be an autonomous or intelligent driving vehicle; the braking device can be a foot brake. The motorcycle can refer to a land motorcycle, a jet ski, etc., and the braking device can be a handbrake.

[0063] For ease of explanation, the following embodiments use a vehicle as an example of a mode of transportation according to an embodiment of this application. Please refer to... Figure 1 , Figure 1The diagram below illustrates the structure of a vehicle, one of the embodiments provided in this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A braking device 100 is installed inside the vehicle 1000, which can be located at the bottom of the passenger compartment for controlling the braking of the vehicle 1000. The vehicle 1000 may also include a controller 200, a motor 300, and a battery device 400. The controller 200 controls the battery device 400 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0064] Reference Figures 2 to 4 This application provides a braking device 100, including a housing 10, a motion conversion assembly 20, a reset member 40, a braking force application member 30, and at least two detection assemblies 50. The housing 10 has an opening 10a. The braking force application member 30 is located on the outside of the housing 10. The motion conversion assembly 20 is located inside the housing 10 and includes a moving member 21, a rotating member 22, and a transmission member 23. The moving member 21 passes through the opening 10a and moves linearly. The moving member 21 is connected to the braking force application member 30. The rotating member 22 is rotatably located inside the housing 10 and is linked to the moving member 21 via the transmission member 23. The reset member 40 is located between the housing 10 and the moving member 21 along the moving direction of the moving member 21 and is configured to reset the moving member 21 after the braking force application member 30 is released from external force. The at least two detection assemblies 50 are used to detect the displacement of at least one of the moving member 21 and the rotating member 22 and can transmit detection information outwards.

[0065] The housing 10 can refer to a component that provides support and mounting structure for the various parts of the braking device 100, and can be made of, but is not limited to, plastic, metal, composite materials, etc. The opening 10a can refer to a hole structure formed on the housing 10. Optionally, one of the multiple shell walls of the housing 10 can be partially cut to form the opening 10a. Optionally, one end of the housing 10 is open to form the opening 10a.

[0066] The braking force-applying component 30 can refer to a component that applies force during braking. For example, when the braking device 100 is a foot brake device, the braking force-applying component 30 can be a foot pedal. As another example, when the braking device 100 is a motorcycle or a two-wheeled electric vehicle, the braking force-applying component 30 can be a handbrake lever.

[0067] Motion conversion component 20 can refer to a component that can convert braking force application component 30 into other forms of motion. Moving component 21 can refer to a part that can move along a straight line, see reference. Figure 4 The moving part 21 can refer to a component that moves along a third direction Z. The rotating part 22 can refer to a component capable of rotational movement, for example, referring to... Figure 3 and Figure 4 The rotating component 22 is a shaft-like component that rotates about a first direction X. The transmission component 23 can refer to a component that converts the linear motion of the moving component 21 into the rotational motion of the rotating component 22, and can be, but is not limited to, a gear and rack structure, a linkage structure, etc. (Refer to...) Figure 4 and Figure 5 The transmission component 23 can be a linkage structure. The first direction X and the third direction Z can refer to two mutually perpendicular directions.

[0068] The reset component 40 can refer to a component that resets the moving component 21 after the braking force-applying component 30 is released from the external force. Optionally, the reset component 40 can be a spring, leaf spring, gas spring, hydraulic spring, rubber sleeve, etc.

[0069] The detection component 50 can refer to a device capable of detecting the displacement of the motion conversion component 20 and transmitting the detection information to the outside world. The "displacement" mentioned here can refer to linear displacement and / or angular displacement. There can be two or more detection components 50, for example, two, three, four, etc. At least two detection components 50 can be used entirely for detecting the linear displacement of the moving component 21, or entirely for detecting the angular displacement of the rotating component 22, or partially for detecting the linear displacement of the moving component 21 and the remainder for detecting the angular displacement of the rotating component 22. It is understood that by setting at least two detection components 50, redundant detection of the motion conversion component 20 can be achieved, improving detection accuracy and enhancing fault resistance.

[0070] It should be noted that the braking device 100 in the above embodiment can achieve accurate and reliable detection of braking within a micro-stroke, and can be applied to unmanned or intelligent driving vehicles.

[0071] In the above technical solution, the motion conversion component 20 of the braking device 100 can convert the micro-stroke of the braking force-applying component 30 into linear and rotational motion, and detect the displacement of the moving component 21 and / or rotating component 22 through at least two detection components 50. Compared with the method of using force sensors for detection, this solution can more easily capture the displacement of the moving component 21 and / or rotating component 22, which can reduce the detection difficulty, improve the detection accuracy, and thus improve the detection reliability. At the same time, at least two detection components 50 can also achieve redundant detection, which can reduce the risk of failure to detect or inaccurate detection structure due to malfunction, further improving the accuracy and reliability of detection. Moreover, the method of detecting displacement has lower requirements for the detection components 50, which can reduce manufacturing costs.

[0072] In some embodiments of this application, reference is made to Figures 2 to 4The braking device 100 may include an elastic limiting member 60, which is disposed inside the housing 10 and is spaced apart from at least part of the moving member 21 along the moving direction of the moving member 21 to limit the displacement of the moving member 21.

[0073] The elastic limiting member 60 can refer to an elastic component that can limit the movement of the moving member 21. The elastic limiting member 60 can be, but is not limited to, a spring, a rubber block, a rubber seat, etc. Optionally, refer to... Figure 2 and Figure 4 The elastic limiting member 60 can be a limiting rubber ring. It is understood that the elastic limiting member 60 can limit the large displacement of the moving member 21 and reduce the risk of the moving member 21 making hard contact or impacting other components.

[0074] In the above technical solution, the elastic limiting member 60 can reduce the risk of damage caused by the large travel of the moving member 21 and contact with other components, thereby improving the reliability of the components inside the housing 10 and thus improving the reliability of the entire device.

[0075] Optionally, the elastic limiting member 60 can be connected to the housing 10 or to other components inside the housing 10. Optionally, when the elastic limiting member 60 is a ring-shaped structure, one end of the elastic limiting member 60 can be beveled.

[0076] In some embodiments of this application, reference is made to Figure 2 , Figure 4 and Figure 6 The movable component 21 includes a cover 211 and a guide rod 212. The cover 211 fits against the inner wall of the periphery of the housing 10 and closes the opening 10a. The guide rod 212 passes through the cover 211 and is connected to the braking force application component 30. The guide rod 212 is linked to the rotating component 22 through the transmission component 23. The elastic limiting component 60 and the cover 211 are spaced apart along the moving direction of the movable component 21.

[0077] The cover 211 can refer to a component that can close the opening 10a of the housing 10. This reduces the risk of dust and other particulate matter, as well as water stains, entering the interior of the housing 10, thereby providing a clean or stable working environment for the various components inside the housing 10. This is beneficial for improving the reliability of the components and extending their service life. Moreover, the cover 211 fits snugly against the inner peripheral wall of the housing 10, which allows the inner peripheral wall of the housing 10 to guide the movement of the moving part 21, thereby improving the movement stability of the moving part 21.

[0078] The guide rod 212 can achieve motion linkage with the rotating component 22, thus reducing the overall material usage of the moving component 21. Optionally, the diameter of the guide rod 212 is smaller than the diameter of the cover 211, or the width of the guide rod 212 is smaller than the width of the cover 211. It is understood that this method can save space inside the housing 10, making it easier to arrange the elastic limiting component 60 inside the housing 10.

[0079] The elastic limiting member 60 and the cover 211 are spaced apart along the moving direction of the moving member 21, so that the distance between the elastic limiting member 60 and the cover 211 is the approximate stroke range of the entire braking force application member 30, and the way to limit the stroke range of the braking force application member 30 is relatively simple.

[0080] In the above technical solution, the moving part 21 with the above structure can improve the overall movement stability, save materials, reduce the weight of the whole device, save the internal space of the housing 10, facilitate the arrangement of other components, and better limit the stroke range of the braking force application part 30, thereby improving the manufacturability of the whole device.

[0081] In some embodiments of this application, reference is made to Figure 4 and Figure 6 The guide rod 212 includes a first rod portion 2121 and a second rod portion 2122 connected together. The first rod portion 2121 passes through the cover 211 and is connected to the braking force application member 30. The outer diameter of the first rod portion 2121 is equal to the inner diameter of the reset member 40. The outer diameter of the second rod portion 2122 is smaller than the outer diameter of the first rod portion 2121. The second rod portion 2122 moves in conjunction with the rotating member 22.

[0082] The first rod portion 2121 and the second rod portion 2122 can refer to the two rod portions that form the guide rod 212. The shapes of the first rod portion 2121 and the second rod portion 2122 can be, but are not limited to, cylindrical rods, square rods, triangular rods, etc.

[0083] In the above technical solution, since the outer diameter of the second rod portion 2122 is smaller than the outer diameter of the first rod portion 2121, this can further save material for the guide rod 212, reduce costs, and help reduce the weight of the entire braking device 100. Moreover, the smaller outer diameter of the second rod portion 2122 can save more space inside the housing 10, making it easier to arrange more or larger-sized components. The outer diameter of the first rod portion 2121 is equal to the inner diameter of the reset member 40. This allows the first rod portion 2121 and the reset member 40 to be fitted together, and it also limits the reset member 40, improving the installation stability and reliability of the reset member 40 within the housing 10, which is beneficial to improving the operational reliability of the entire braking device 100.

[0084] In some embodiments of this application, reference is made to Figure 2 , Figure 4 and Figure 6 The braking device 100 includes a support base 70, which is disposed inside and fixed to the housing 10. An elastic limiting member 60 is disposed on the side of the support base 70 near the cover 211. One end of the resetting member 40 abuts against the cover 211 and the other end abuts against the support base 70. The support base 70 is provided with a through hole 701, and the guide rod 212 passes through the through hole 701.

[0085] The support base 70 can refer to a component that provides support and mounting structure for the elastic limiting member 60 and the guide rod 212. The connection method between the support base 70 and the housing 10 can be, but is not limited to, snap-fit, bolt connection, riveting, adhesive bonding, etc.

[0086] Since the motion conversion component 20 includes multiple parts, the above solution can be used to first install the rotating part 22 and the transmission part 23 into the housing 10, then install the support base 70 into the housing 10, and then install the reset part 40, the elastic limiting part 60 and the moving part 21. This can reduce the assembly difficulty of the braking device 100.

[0087] In the above technical solution, the internal structure of the housing 10 can be simplified by the support base 70, which facilitates the installation of the rotating part 22 and the transmission part 23, and provides support and installation environment for the installation of the reset part 40, the elastic limiting part 60 and the moving part 21. This can reduce the assembly difficulty, improve the manufacturability of the braking device 100 and reduce the manufacturing cost.

[0088] In some embodiments of this application, the interior of the housing 10 is provided with a step 10b, and the support 70 abuts against the step 10b. In this way, the support 70 and the housing 10 can be matched only by the step 10b, which can improve the installation stability and reliability of the support 70 inside the housing 10, and also help to reduce the assembly difficulty.

[0089] In some embodiments of this application, reference is made to Figure 5 The support base 70 is provided with an annular limiting groove 70a, and the reset member 40 is annular with one end located in the limiting groove 70a.

[0090] In the above technical solution, the limiting groove 70a can provide support and installation position for the reset member 40, and can limit the reset member 40 so that the reset member 40 and the guide rod 212 remain concentric, reducing the risk of the reset member 40 shaking and shifting inside the housing 10, which can further improve the installation reliability of the reset member 40 inside the housing 10, thereby improving the reliability of the braking device 100.

[0091] In some embodiments of this application, reference is made to Figure 2 , Figures 4 to 6The braking device 100 includes a damping element 80, which is annular and inner sleeved in the through hole 701, and outer sleeved in the guide rod 212.

[0092] Damping component 80 can refer to a component that provides damping sensation and damping effect, and can be, but is not limited to, spring damping structures, hydraulic damping structures, pneumatic damping structures, etc. For example, refer to... Figure 2 The damping element 80 can be a ring-shaped rubber block. Because the pedal or handbrake travels relatively long during traditional foot pedal braking or handbrake braking, while the braking device 100 is a micro-stroke braking, the user experience is different from that of conventional braking. The damping element 80 can provide damping force during the foot pedal or handbrake process, simulating the feeling of a real foot pedal or handbrake, and improving the pedal performance or handbrake feel.

[0093] Optionally, the damping element 80 and the guide rod 212 are interference fit.

[0094] In the above technical solution, the damping element 80 can provide damping for the movement of the guide rod 212, thereby providing damping sensation for the force application of the braking force application element 30, which is beneficial to improving the user experience of the braking device 100 during the micro-stroke process.

[0095] In some embodiments of this application, reference is made to Figure 5 The through hole 701 includes a first hole section 7011 and a second hole section 7012. The first hole section 7011 is located on the side of the second hole section 7012 near the cover 211. In the direction from the cover 211 to the damping member 80, the diameter of the first hole section 7011 gradually decreases. The damping member 80 includes a first damping part 81 and a second damping part 82. The first damping part 81 is located on the side of the second damping part 82 near the cover 211 and fits inside the first hole section 7011. In the direction from the first hole section 7011 to the second hole section 7012, at least a portion of the outer diameter of the first damping part 81 gradually decreases.

[0096] It is understandable that the first hole segment 7011 of the through hole 701 is a non-uniform diameter hole with a gradually changing diameter. For example, the hole wall surface of the first hole segment 7011 can be, but is not limited to, a sloped surface or an arc surface, while the second hole segment 7012 can be a hole with a uniform diameter.

[0097] The first damping part 81 can be a ring-shaped structure with a gradually changing diameter, or it can be entirely a ring-shaped structure with a gradually changing diameter. Optionally, the outer surface of the first damping part 81 near the first hole section 7011 can be, but is not limited to, an inclined surface, an arc-shaped surface, etc. The second damping part 82 can refer to a ring-shaped structure with a gradually changing diameter.

[0098] Understandably, the through hole 701 and damping element 80 of the above structure can change the friction between the guide rod 212 and the damping element 80. In the region of the guide rod 212 corresponding to the first hole section 7011 and the first damping part 81, the friction between the guide rod 212 and the first damping part 81 is greater, and the damping force and damping sensation are stronger. In the region of the guide rod 212 corresponding to the second hole section 7012 and the second damping part 82, the friction between the guide rod 212 and the first damping part 81 is smaller, and the damping force and damping sensation are smaller. Thus, appropriate damping force can be provided for the entire movement process of the guide rod 212.

[0099] In the above technical solution, by using the through hole 701 and the damping element 80 with the above structure, the damping force provided by the damping element 80 can remain consistent at first and then gradually increase during the movement of the guide rod 212. This is conducive to further improving the damping feel during the application of force by the braking force application element 30, simulating a more realistic usage situation, and improving the user experience.

[0100] In some embodiments of this application, reference is made to Figure 2 , Figure 4 and Figure 6 The transmission component 23 includes a first connecting rod 231 and a second connecting rod 232. One end of the first connecting rod 231 is hinged to the moving component 21, and the other end is hinged to the second connecting rod 232. The second connecting rod 232 is fixedly connected to the rotating component 22.

[0101] In the above technical solution, the transmission component 23 with the above structure can convert the linear motion of the moving component 21 into the rotational motion of the rotating component 22 through the linkage. The size of this transmission component 23 is relatively small, which can save space and is conducive to the miniaturization of the overall size of the braking device 100. Moreover, the structure is simple and the reliability is high, which can improve the reliability of the braking device 100.

[0102] In some embodiments of this application, at least two detection components 50 are used to detect the moving part 21, and both are Hall linear displacement detection components; or, at least two detection components 50 are used to detect the rotating part 22, and are Hall angular displacement detection components or eddy current angular displacement detection components; or, a portion of the at least two detection components 50 is used to detect the rotating part 22, and is a Hall angular displacement detection component or an eddy current angular displacement detection component, and another portion is used to detect the rotating part 22, and is a Hall linear displacement detection component.

[0103] Hall angular displacement detection components can be, but are not limited to, Hall angular displacement sensors, etc.; Hall linear displacement detection components can be, but are not limited to, Hall linear displacement sensors, etc.; and eddy current angular displacement detection components can be, but are limited to, eddy current angular displacement sensors, etc.

[0104] In the above technical solutions, at least two detection components 50 can have multiple design schemes to adapt to different application requirements and expand the scope of application. Whether using Hall angular displacement detection components, Hall linear displacement detection components, or eddy current angular displacement detection components, compared with force sensors, the braking device 100 can use these detection components with better detection stability and reliability, which can not only improve the reliability of the device but also reduce costs.

[0105] In some embodiments of this application, reference is made to Figure 2 and Figure 6 At least two detection components 50 include a first detection component 501 and a second detection component 502. The first detection component 501 includes a first test element 5011 and a first detection element 5012. The first test element 5011 is disposed on the moving part 21 and is a magnetic element. The first detection element 5012 is a Hall linear sensor. The second detection component 502 includes a second test element 5021 and a second detection element 5022. The second test element 5021 is disposed on the rotating part 22 and is a metal element including at least one tooth 50211. The second detection element 5022 is an eddy current angle sensor.

[0106] The magnetic component can be, but is not limited to, a magnet or a magnetic stone. A Hall effect linear sensor can refer to a circuit structure that includes a Hall chip capable of sensing the magnetic field of a magnet, and related signal processing circuitry. When the magnetic component passes by the Hall effect linear sensor, the sensor detects the corresponding signal and transmits a signal.

[0107] The second tested component 5021 is a metal component including at least one tooth 50211, which may refer to a metal component with a cross-shaped, umbrella-shaped, or gear-shaped structure. The eddy current angle sensor may refer to a circuit structure including an eddy current chip capable of generating an excitation coil and detecting changes in the magnitude of the magnetic field of the excitation coil, as well as related signal processing circuitry. When the tooth 50211 of the metal component cuts the excitation coil, the eddy current angle sensor can detect the corresponding signal and transmit a signal.

[0108] In the above technical solution, the linear displacement of the moving part 21 and the angular displacement of the rotating part 22 can be detected simultaneously, and the two motion forms adopt different detection methods, thereby realizing heterogeneous redundancy of detection methods and further improving the overall detection stability and reliability of the braking device 100.

[0109] In some embodiments of this application, reference is made to Figure 2 , Figure 3 and Figure 6At least two detection components 50 include a base plate 503, a first connector 504 and a second connector 505. The first detection component 5012 and the second detection component 5022 are disposed on the base plate 503. The first connector 504 is electrically connected to the first detection component 5012, and the second connector 505 is electrically connected to the second detection component 5022.

[0110] In the above technical solution, the first detection element 5012 and the second detection element 5022 are centrally arranged on the same base plate 503, which helps to reduce the assembly steps of all components and improve assembly efficiency. The first connector 504 enables the first detection element 5012 to input and output signals to external devices, as well as to provide power and grounding. The second connector 505 enables the second detection element 5022 to input and output signals to external devices, as well as to provide power and grounding.

[0111] In some embodiments of this application, reference is made to Figure 2 and Figure 6 The housing 10 has a first housing wall 101 located on one side of the moving part 21 in the moving direction. The wall thickness of the first housing wall 101 is the thinnest compared to the wall thickness of the other housing walls of the housing 10. The first test part 5011 and the second test part 5021 are disposed close to the first housing wall 101. The base plate 503 is disposed on the first housing wall 101.

[0112] In the above technical solution, since the first tested component 5011 is a magnetic component and the first detection component 5012 is a Hall linear sensor, it needs to detect the induced magnetic field. The second tested component 5021 is a metal component including at least one tooth 50211, and the second detection component 5022 is an eddy current angle sensor, it needs to detect the cutting magnetic field. By making the first shell wall 101 near the first tested component 5011 and the second tested component 5021 relatively thin, the influence of the larger wall thickness on the detection of the first detection component 5012 and the second detection component 5022 can be reduced, thereby improving the accuracy of the detection. Moreover, it helps to save the amount of material used in the shell 10, reduce the weight of the shell 10, and thus reduce the weight of the braking device 100, making it easier to transport and assemble.

[0113] In some embodiments of this application, reference is made to Figure 3 The base plate 503 is provided with mounting holes 503a, and the base plate 503 can be mounted and fixed to the housing 10 by bolts passing through the mounting holes 503a. The number of mounting holes 503a can be, but is not limited to, two, three, four, etc. For example, refer to... Figure 3 There are four mounting holes 503a.

[0114] In some embodiments of this application, reference is made to Figure 3The housing 10 has a mounting hole 10c at the end away from the braking force-applying component 30. The housing 10 can be mounted on a vehicle by bolts passing through the mounting hole 10c. For example, when the vehicle is a vehicle 1000, the housing 10 can be mounted in the driver's cab by bolts passing through the mounting hole 10c.

[0115] As an example, refer to Figure 3 There can be two mounting holes 10c, located at both ends of the housing 10 in the second direction Y. The second direction Y can be the first direction X and the third direction Z mentioned above, which are perpendicular to each other. For example, the first direction X is the width direction of the housing 10, the second direction Y is the length direction of the housing 10, and the third direction Z is the height direction of the housing 10.

[0116] In some embodiments of this application, the travel range of the braking force-applying member 30 in the moving direction of the moving member 21 is less than or equal to 10 mm. It is understood that the braking device 100 has a small braking stroke and is a micro-stroke braking device.

[0117] This application also provides a vehicle, including a braking device 100 as described in the preceding embodiments.

[0118] In the above technical solution, since the braking device 100 can improve the accuracy and reliability of detection and reduce manufacturing costs, vehicles using the braking device 100 can also improve the user experience and reduce costs.

[0119] Reference Figures 2 to 6 According to the embodiments of this application, the braking device 100 is a foot pedal brake.

[0120] The braking device 100 includes a housing 10, a motion conversion component 20, a reset component 40, a braking force application component 30, two detection components 50, an elastic limiting component 60, a support base 70, and a damping component 80.

[0121] The housing 10 is provided with an opening 10a.

[0122] The braking force application component 30 is a pedal, which is located on the outside of the housing 10, and the pedal travel range is 10mm.

[0123] The motion conversion assembly 20 is disposed within the housing 10 and includes a moving member 21, a rotating member 22, and a transmission member 23. The moving member 21 passes through the opening 10a and moves linearly. The moving member 21 includes a cover 211 and a guide rod 212. The cover 211 is attached to the inner circumferential wall of the housing 10 and closes the opening 10a. The guide rod 212 passes through the cover 211 and connects to the pedal. The rotating member 22 is a pivot and is rotatably disposed within the housing 10. The transmission member 23 includes a first connecting rod 231 and a second connecting rod 232. One end of the first connecting rod 231 is hinged to the moving member 21 via a pin, and the other end is hinged to the second connecting rod 232 via a pin. The second connecting rod 232 and the rotating member 22 are fixedly connected.

[0124] The reset member 40 is a spring, which is located between the housing 10 and the moving member 21 along the moving direction of the moving member 21, and is configured to reset the moving member 21 after the braking force member 30 is released from the external force.

[0125] The elastic limiting member 60 is a spring and is sleeved on the guide rod 212. One end of the elastic limiting member 60 abuts against the cover 211, and the other end abuts against the support seat 70.

[0126] The support base 70 is disposed inside the housing 10 and installed on the step 10b of the housing 10. The support base 70 has a through hole 701, through which the guide rod 212 passes. The upper structure of the through hole 701 is tapered. The support base 70 has an annular limiting groove 70a. The reset member 40 is annular, and one end is located in the limiting groove 70a.

[0127] The damping element 80 is a damping block, which is annular and fitted inside the through hole 701. The damping element 80 is fitted outside the guide rod 212. The damping element 80 and the guide rod 212 are interference-fitted. The upper structure of the damping element 80 is conical and fits inside the through hole 701.

[0128] Of the two detection components 50, one is a first detection component 501 and the other is a second detection component 502. The first detection component 501 includes a first test element 5011 and a first detection element 5012. The first test element 5011 is disposed on the guide rod 212 and is a magnetic element, and the first detection element 5012 is a Hall linear sensor. The second detection component 502 includes a second test element 5021 and a second detection element 5022. The second test element 5021 is disposed on the rotating component 22 and includes an umbrella-shaped metal element, and the second detection element 5022 is an eddy current angle sensor.

[0129] The two detection components 50 also include a substrate 503, a first connector 504, and a second connector 505. A portion of the substrate 503 contains a Hall effect chip capable of sensing the magnetic field of a magnet, along with a circuit structure for related signal processing circuitry, forming the first detection component 5012. Another portion of the substrate 503 contains an eddy current chip capable of generating an excitation coil and detecting changes in the magnitude of the coil's magnetic field, along with a circuit structure for related signal processing circuitry, forming the second detection component 5022. The first connector 504 is electrically connected to the first detection component 5012 to enable signal input and output between the first detection component 5012 and external devices, as well as to provide power and grounding. The second connector 505 is electrically connected to the second detection component 5022 to enable signal input and output between the second detection component 5022 and external devices, as well as to provide power and grounding.

[0130] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0131] The above are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions. Unless otherwise specified, all technical features and optional technical features of this application can be combined to form new technical solutions. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A braking device, characterized in that, include: The housing has an opening; A braking force-applying component, wherein the braking force-applying component is disposed on the outside of the housing; A motion conversion assembly is disposed within the housing and includes a moving component, a rotating component, and a transmission component. The moving component passes through the opening and moves in a straight line. The moving component is connected to the braking force application component. The rotating component is rotatably disposed within the housing and moves in conjunction with the moving component through the transmission component. A reset member is disposed between the housing and the moving member along the moving direction of the moving member, and is configured to reset the moving member after the braking force application member disengages from the external force; At least two detection components are provided, which are used to detect the displacement of at least one of the moving component and the rotating component, and can transmit detection information outward.

2. The braking device according to claim 1, characterized in that, The braking device includes an elastic limiting member disposed within the housing and spaced at least partially from the moving member along the moving direction of the moving member, thereby limiting the displacement of the moving member.

3. The braking device according to claim 2, characterized in that, The movable component includes a cover and a guide rod. The cover fits against the inner circumferential wall of the housing and closes the opening. The guide rod passes through the cover and is connected to the braking force-applying component. The guide rod moves in conjunction with the rotating component through the transmission component. The elastic limiting component and the cover are spaced apart along the moving direction of the movable component.

4. The braking device according to claim 3, characterized in that, The braking device includes a support base, which is disposed inside the housing and fixed to the housing. The elastic limiting member is disposed on the side of the support base near the cover. One end of the resetting member abuts against the cover and the other end abuts against the support base. The support base has a through hole, and the guide rod passes through the through hole.

5. The braking device according to claim 4, characterized in that, The braking device includes a damping element, which is annular and fitted inside the through hole, and the damping element is fitted outside the guide rod.

6. The braking device according to claim 5, characterized in that, The through hole includes a first hole section and a second hole section. The first hole section is located on the side of the second hole section near the cover. The diameter of the first hole section gradually decreases in the direction from the cover to the damping member. The damping element includes a first damping portion and a second damping portion. The first damping portion is disposed on the side of the second damping portion near the cover and fits within the first hole segment. In the direction from the first hole segment to the second hole segment, at least a portion of the outer diameter of the first damping portion gradually decreases.

7. The braking device according to any one of claims 1 to 4, characterized in that, The transmission component includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the moving component, and the other end is hinged to the second connecting rod. The second connecting rod and the rotating component are fixedly connected.

8. The braking device according to any one of claims 1 to 4, characterized in that, At least two of the aforementioned detection components are used to detect the moving part, and both are Hall line displacement detection components; Alternatively, at least two of the detection components are used to detect the rotating component, and are Hall angular displacement detection components or eddy current angular displacement detection components; Alternatively, at least one of the two detection components is used to detect the rotating component, and is a Hall angular displacement detection component or an eddy current angular displacement detection component, while the other part is used to detect the rotating component, and is a Hall linear displacement detection component.

9. The braking device according to claim 8, characterized in that, At least two of the detection components include a first detection component and a second detection component. The first detection component includes a first test piece and a first detection piece. The first test piece is disposed on the moving part and is a magnetic piece. The first detection piece is a Hall linear sensor. The second detection component includes a second test piece and a second detection piece. The second test piece is disposed on the rotating part and is a metal piece including at least one tooth. The second detection piece is an eddy current angle sensor.

10. The braking device according to claim 9, characterized in that, At least two of the detection components include a substrate, a first connector, and a second connector. The first and second detection components are disposed on the substrate, the first connector is electrically connected to the first detection component, and the second connector is electrically connected to the second detection component.

11. The braking device according to claim 10, characterized in that, The housing has a first shell wall located on one side of the moving direction of the moving member. The thickness of the first shell wall is the thinnest compared to the thickness of the other shell walls of the housing. The first detection target and the second detection target are disposed close to the first shell wall, and the base plate is disposed on the first shell wall.

12. The braking device according to any one of claims 1 to 6, characterized in that, The travel range of the braking force-applying component in the moving direction of the moving component is less than or equal to 10 mm.

13. A means of transportation, characterized in that, Includes the braking device as described in any one of claims 1 to 12.

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