Trailer brake module and vehicle

Abstract

The invention provides a trailer braking module and a vehicle, and relates to the technical field of vehicles. The trailer braking module comprises a valve assembly, a trailer braking assembly and a first detection piece. When the trailer of the vehicle wades into water, the first detection piece can detect that the trailer of the vehicle is in a wading state, so that the air pressure in the control cavity is larger than the first preset air pressure and smaller than the second preset air pressure by inputting air into the control cavity; the air outlet chamber can be disconnected from the outside of the valve body under the condition that a trailer of a vehicle is not braked. In this way, water can be prevented from entering the valve assembly when the trailer of the vehicle wades into water, the situation that the traveling state of the vehicle is affected by braking of the trailer of the vehicle is avoided, and therefore the purpose of fully protecting the valve assembly is achieved, and the trailer braking module is safer and more reliable in the wading state.

Description

Technical Field

[0001] The present application relates to a trailer brake module and a vehicle, belonging to the technical field of vehicles. Background Art

[0002] Stopping a vehicle at high speed requires a braking system. EBS, or Electronic Braking System, is a commonly used vehicle braking system. It electronically adjusts brake pressure based on road and traffic conditions, ensuring safer braking. The trailer brake module is a modular structure within the vehicle's electronic braking system used to brake the vehicle's trailer. The trailer module is equipped with an exhaust duct to dissipate brake air when the vehicle brakes are released.

[0003] When the vehicle is in a wading state, there is a possibility that external water may enter the trailer module through the exhaust channel of the trailer module, causing the trailer module to be damaged and unable to work normally, thereby causing risks to the vehicle's driving. Summary of the Invention

[0004] The present application provides a trailer brake module and a vehicle, which solves the problem in the related art that the trailer module may become ineffective due to water ingress when the vehicle wades through water.

[0005] In a first aspect, the present application provides a trailer brake module, which is applied to a trailer of a vehicle, comprising:

[0006] A valve assembly comprising a valve body and a switch member, wherein the valve body is provided with an air outlet chamber and a control chamber, one end of the air outlet chamber is connected to an air source, the control chamber is connected to the air source, and the air outlet chamber is also connected to the outside of the valve body, and the switch member is movably disposed on the valve body;

[0007] The trailer brake assembly has a brake air chamber, the brake air chamber and the air outlet chamber can be disconnected, when the air pressure of the brake air chamber is greater than or equal to the brake air pressure, the trailer brake assembly brakes the trailer of the vehicle;

[0008] When the air pressure in the control chamber is greater than a first preset air pressure, the gas in the control chamber drives the switch element to move to disconnect the connection between the air outlet chamber and the outside of the valve body, and open the connection between the air source and the air outlet chamber;

[0009] When the air pressure in the air outlet chamber increases to a point where the air pressure in the air outlet chamber is balanced with the air pressure in the control chamber, the switch element is driven to move to disconnect the connection between the air outlet chamber and the air source;

[0010] When the air pressure in the control chamber is greater than or equal to the second preset air pressure, the air pressure in the air outlet chamber is not less than the brake air pressure;

[0011] a first detection member configured to detect whether the trailer of the vehicle is in a wading state;

[0012] When the trailer of the vehicle is in a wading and non-braking state, the pressure of the gas input into the control chamber by the gas source is greater than the first preset pressure and less than the second preset pressure.

[0013] In some embodiments, when the force exerted by the air pressure in the control chamber on the switch element is less than the force exerted by the gas in the air outlet chamber on the switch element, the gas in the air outlet chamber drives the switch element to move to open the connection between the air outlet chamber and the outside of the valve body.

[0014] In some embodiments, the valve body further includes an air inlet chamber, and the air outlet chamber is connected to the air source through the air inlet chamber.

[0015] In some embodiments, the valve body further includes an exhaust chamber, and the air outlet chamber is communicated with the outside of the valve body through the exhaust chamber.

[0016] In some embodiments, the switch element includes a piston and a valve, the piston and the valve are movably disposed in the valve body, the piston having a first end and a second end opposite to each other, the first end being located in the control chamber, and the second end being located in the air outlet chamber, the valve being located on a side of the piston facing away from the control chamber, and the side of the valve facing away from the control chamber being located in the air inlet chamber, the air outlet chamber having a first opening for communicating with the exhaust chamber, and the air inlet chamber having a second opening communicating with the air outlet chamber;

[0017] When the air pressure in the control chamber is greater than the first preset air pressure, the gas in the control chamber drives the piston and the valve to move in a first direction, so that the piston is opposite to the first opening to block the first opening and the valve is separated from the second opening. The first direction is the direction in which the piston is toward the valve.

[0018] When the air pressure in the control chamber is balanced with the air pressure in the air inlet chamber, the valve is driven to move in a second direction so that the valve blocks the second opening, and the second direction is opposite to the first direction;

[0019] When the force exerted by the gas in the control chamber on the first end is smaller than the force exerted by the gas in the outlet chamber on the second end, the gas in the outlet chamber drives the piston to move along the second direction to separate the piston from the first opening.

[0020] In some embodiments, the switch element further comprises an elastic element, one end of the elastic element is connected to the valve body, and the other end of the elastic element is connected to the valve;

[0021] When the first opening is closed and the second opening is opened, the elastic member is deformed and has elastic force;

[0022] When the air pressure in the control chamber is balanced with the air pressure in the air inlet chamber, the elastic force of the elastic member drives the valve and the piston to move along the second direction, so that the valve blocks the second opening.

[0023] In some embodiments, the air outlet chamber and the control chamber are both arranged around the piston, and the air inlet chamber is arranged around the valve.

[0024] In some embodiments, the air outlet chamber is disposed around the exhaust chamber, and the first opening is disposed on a side wall of the air outlet chamber.

[0025] In some embodiments, the trailer brake module further includes an air pressure regulating assembly configured to regulate air pressure within the control chamber.

[0026] In some embodiments, the air inlet chamber further has a third opening, the third opening is connected to the air pressure regulating assembly, and the air pressure regulating assembly is connected to the control chamber.

[0027] In some embodiments, the air pressure regulating assembly includes a first on-off piece and a second on-off piece, the air inlet end of the first on-off piece is connected to the third opening, the first on-off piece has a first air outlet end and a second air outlet end, the first air outlet end of the first on-off piece is connected to the control chamber, the second air outlet end of the first on-off piece is connected to the air inlet end of the second on-off piece, and the air outlet end of the second on-off piece is connected to the exhaust chamber.

[0028] In some embodiments, a third on-off member is further included, wherein the third on-off member is disposed between the air outlet chamber and the brake air chamber, and the third on-off member is configured to connect or disconnect the air outlet chamber and the brake air chamber.

[0029] In some embodiments, the system further includes a second detection member electrically connected to the air pressure regulating assembly, and configured to detect the air pressure of the control chamber;

[0030] When the air pressure in the control chamber is less than or equal to the first preset air pressure, the air pressure regulating assembly is configured to regulate the air pressure of the gas input from the air source into the valve assembly to be greater than the first preset air pressure.

[0031] In some embodiments, the first detection component is a water wading sensor, the first detection component is disposed on a trailer of the vehicle, and the second detection component is an air pressure sensor.

[0032] In a second aspect, the present application provides a vehicle comprising the above trailer brake module.

[0033] In the trailer brake module provided herein, an air source can input gas into a control chamber of a valve assembly. When the air pressure in the control chamber exceeds a first preset pressure, the air in the control chamber drives a switch member to activate, causing the switch member to disconnect the air outlet chamber from the exterior of the valve body and connect the air outlet chamber to the air source. In this way, the air source can input gas into the air outlet chamber, and the gas can ultimately enter the brake air chamber of the trailer brake assembly, thereby providing brake air pressure for the vehicle trailer. When the vehicle trailer is wading through water, the first detection member can detect that the vehicle trailer is in a wading state. In this way, gas can be input into the control chamber through the air source, causing the air pressure in the control chamber to exceed the first preset pressure and be less than a second preset pressure. In this way, the air pressure in the brake air chamber is less than the brake air pressure of the trailer brake assembly, allowing the vehicle trailer to disconnect the air outlet chamber from the exterior of the valve body without braking. This can prevent water from entering the valve assembly when the vehicle trailer is wading through water, and will not affect the vehicle trailer braking and the vehicle's driving state, thereby achieving the purpose of fully protecting the valve assembly, and making the trailer brake module of this application safer and more reliable when wading through water.

[0034] The vehicle provided in the present application includes the above-mentioned trailer brake module, so that when the vehicle is wading, it can safely and reliably pass through the wading area without affecting the driving state of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other objects, features and advantages of the embodiments of the present application will become more readily understood through the following detailed description with reference to the accompanying drawings, in which various embodiments of the present application are illustrated by way of example and not limitation, wherein:

[0036] Figure 1 A schematic diagram of a trailer brake module according to an embodiment of the present application;

[0037] Figure 2 A schematic diagram of a trailer brake module according to an embodiment of the present application in which the air outlet chamber and the exhaust chamber are disconnected;

[0038] Figure 3 Schematic diagram showing the communication between the air outlet chamber and the air inlet chamber of the trailer brake module according to an embodiment of the present application;

[0039] Figure 4 This is a schematic diagram of the connection between the valve assembly of the trailer brake module and the trailer brake assembly in an embodiment of the present application;

[0040] Figure 5 A schematic diagram of an air pressure regulating assembly of a trailer brake module according to an embodiment of the present application;

[0041] Figure 6 This is a schematic diagram of the connection between the first detection component and the third switching component of the trailer brake module in an embodiment of the present application.

[0042] Reference numerals:

[0043] 100 - valve assembly; 110 - valve body; 111 - control chamber; 112 - air inlet chamber; 112a - third opening; 113 - air outlet chamber; 113a - first opening; 113b - second opening; 114 - exhaust chamber; 120 - piston; 121 - first end; 122 - second end; 130 - valve; 140 - elastic member;

[0044] 200-trailer brake assembly; 210-brake chamber;

[0045] 300-air pressure regulating assembly; 310-first on / off member; 320-second on / off member;

[0046] 400-first test piece;

[0047] 500-third on-off piece;

[0048] 600-second test piece;

[0049] 700-gas source;

[0050] 800-Control components. DETAILED DESCRIPTION

[0051] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0052] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0054] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0055] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0057] Stopping a vehicle at high speed requires a braking system. EBS, or Electronic Braking System, is a commonly used vehicle braking system. It electronically adjusts brake pressure based on road and traffic conditions, ensuring safer braking. The trailer brake module is a modular structure within the vehicle's electronic braking system used to brake the vehicle's trailer. The trailer module is equipped with an exhaust duct to dissipate brake air when the vehicle brakes are released.

[0058] When the vehicle is in a wading state, there is a possibility that external water may enter the trailer module through the exhaust channel of the trailer module, causing the trailer module to be damaged and unable to work normally, thereby causing risks to the vehicle's driving.

[0059] In the trailer brake module proposed in this application, an air source can input gas into the control chamber of the valve assembly. When the air pressure in the control chamber exceeds a first preset air pressure, the air in the control chamber drives a switch member to activate, causing the switch member to disconnect the air outlet chamber from the exterior of the valve body and connect the air outlet chamber to the air source. In this way, the air source can input gas into the air outlet chamber, and the gas can ultimately enter the brake air chamber of the trailer brake assembly, thereby providing brake air pressure for the vehicle trailer. When the vehicle trailer is wading through water, the first detection member can detect that the vehicle trailer is in a wading state. In this way, gas can be input into the control chamber through the air source, causing the air pressure in the control chamber to exceed the first preset air pressure and be less than the second preset air pressure. In this way, the air pressure in the brake air chamber is less than the brake air pressure of the trailer brake assembly, allowing the vehicle trailer to disconnect the air outlet chamber from the exterior of the valve body without braking. This can prevent water from entering the valve assembly when the vehicle trailer is wading through water, and will not affect the vehicle's trailer braking and the vehicle's driving state, thereby achieving the purpose of fully protecting the valve assembly, thereby making the trailer brake module of the present application safer and more reliable when wading through water.

[0060] The vehicle proposed in this application includes the above-mentioned trailer brake module, so that when the vehicle is wading, it can safely and reliably pass through the wading area without affecting the driving state of the vehicle.

[0061] The trailer brake module and control method provided by this application are described in detail below with reference to specific embodiments.

[0062] refer to Figures 1 to 5 As shown, the trailer brake module proposed in this application includes a valve assembly 100, a trailer brake assembly 200, an air pressure regulating assembly 300 and a first detection member 400. The trailer brake module can be applied to a vehicle to brake a trailer of the vehicle.

[0063] The valve assembly 100 includes a valve body 110 and a switch element. The valve body 110 is the basic component of the valve assembly 100 of the present application and provides a mounting base for at least some of the other components of the valve assembly 100. The valve body 110 can be made of a metal material, which provides the valve body 110 with excellent structural strength, thereby improving the durability and reliability of the valve body 110.

[0064] The valve body 110 has an air inlet chamber 112 , an air outlet chamber 113 , an exhaust chamber 114 and a control chamber 111 . The air inlet chamber 112 , the air outlet chamber 113 , the exhaust chamber 114 and the control chamber 111 are all cavity structures in the valve body 110 .

[0065] Both the control chamber 111 and the air inlet chamber 112 are connected to the gas source 700. The switch components are movably disposed within the valve body 110, with some located in the control chamber 111 and some located in the air outlet chamber 113. The gas source 700 can input gas into the control chamber 111 and the air inlet chamber 112. Once air pressure is established within the control chamber 111, the gas within the control chamber 111 can drive the switch components to move.

[0066] The air inlet chamber 112 is also connected to the air outlet chamber 113, which is also connected to the exhaust chamber 114. The exhaust chamber 114 is also connected to the atmosphere outside the valve body 110. The gas in the control chamber 111 and the gas in the air outlet chamber 113 can drive the switch to move, so that the air inlet chamber 112 is connected to or disconnected from the air outlet chamber 113, and the air outlet chamber 113 is connected to or disconnected from the exhaust chamber 114. In this way, when the air inlet chamber 112 is connected to the air outlet chamber 113, the gas delivered by the air source 700 to the air inlet chamber 112 can enter the air outlet chamber 113. It should be understood that the air source 700 can be an air source 700 device in the vehicle. Of course, the air source 700 can also be a dedicated air source 700 used for the trailer brake module of the present application.

[0067] refer to Figures 1 to 4 As shown, the trailer brake assembly includes a brake chamber 210, which is a chamber structure within the trailer brake assembly. When the air pressure within the brake chamber 210 reaches the brake pressure of the trailer brake assembly 200, the trailer brake assembly 200 can brake the vehicle's trailer. The brake chamber 210 of the trailer brake assembly is connected to the outlet chamber 113 of the valve assembly 100. Accordingly, the gas delivered to the inlet chamber 112 by the air source 700 can eventually enter the brake chamber 210 through the outlet chamber 113. When the air pressure of the gas delivered to the brake chamber 210 of the trailer brake assembly 200 by the air source 700 reaches the brake pressure, the trailer brake assembly 200 can brake the vehicle's trailer. When the trailer brake module of the present application needs to release the brake state, the air pressure within the brake chamber 210 needs to be lower than the brake pressure.

[0068] The air pressure regulating assembly 300 is connected to the air source 700 . The air pressure regulating assembly 300 can control the amount of gas input from the air source 700 into the control chamber 111 , thereby achieving the purpose of regulating the air pressure in the control chamber 111 .

[0069] refer to Figure 1 As shown, when the air pressure in the control chamber 111 is less than or equal to the first preset pressure, the switch component does not disconnect the outlet chamber 113 from the exhaust chamber 114, allowing the outlet chamber 113 to communicate with the atmosphere through the exhaust chamber 114. The switch component also blocks the connection between the inlet chamber 112 and the outlet chamber 113, disconnecting the inlet chamber 112 from the outlet chamber 113. Accordingly, the gas in the inlet chamber 112 cannot enter the outlet chamber 113 and, thus, cannot enter the brake chamber 210. However, the brake chamber 210 communicates with the exhaust chamber 114 through the outlet chamber 113, connecting the brake chamber 210 to the atmosphere outside the valve body 110. This, in turn, causes the air pressure in the brake chamber 210 to be less than the braking pressure, thus placing the trailer brake module in a non-braking state.

[0070] refer to Figure 2 As shown, when the air pressure regulating assembly 300 controls the air source 700 to input gas into the control chamber 111, so that the air pressure in the control chamber 111 increases to greater than the first preset air pressure, the force exerted by the gas in the control chamber 111 on the switch component is greater than the force exerted by the gas in the air outlet chamber 113 on the switch component. The gas in the control chamber 111 can drive the switch component to move to disconnect the connection between the air outlet chamber 113 and the exhaust chamber 114, thereby disconnecting the air outlet chamber 113 from the exhaust chamber 114, and the gas in the air outlet chamber 113 cannot enter the atmosphere outside the valve body 110 through the exhaust chamber 114.

[0071] refer to Figure 3 As shown, after the air pressure in control chamber 111 gradually increases, the gas in control chamber 111 can also drive the switch element to move to open the connection between air inlet chamber 112 and air outlet chamber 113, thereby connecting air inlet chamber 112 and air outlet chamber 113, while air outlet chamber 113 and exhaust chamber 114 remain disconnected. Air source 700 can input gas into air outlet chamber 113 through air inlet chamber 112, and the gas can enter brake chamber 210 through air outlet chamber 113.

[0072] It should be understood that the inlet chamber 112 and the outlet chamber 113 are connected to the brake chamber 210, so that the air pressure in the inlet chamber 112, the outlet chamber 113, and the brake chamber 210 remains the same when the inlet chamber 112 and the outlet chamber 113 are connected. When the air source 700 inputs gas into the brake chamber 210 through the inlet chamber 112 and the outlet chamber 113, the air pressure in the outlet chamber 113 continues to increase, and the gas in the outlet chamber 113 can drive the switch member to move. When the air pressure in the outlet chamber 113 reaches equilibrium with the air pressure in the control chamber 111, the switch member can be driven to move to disconnect the inlet chamber 112 and the outlet chamber 113, thereby disconnecting the inlet chamber 112 from the outlet chamber 113. In this way, the gas source 700 cannot transport gas to the air outlet chamber 113 through the air inlet chamber 112. Accordingly, the air pressure in the air outlet chamber 113 and the brake air chamber 210 can remain stable, and the air pressure in the air outlet chamber 113 is the same as the air pressure in the control chamber 111, and the switch can remain balanced and stable.

[0073] It should be understood that the greater the air pressure within the control chamber 111, the greater the air pressure required to be input into the outlet chamber 113 so that the gas within the outlet chamber 113 can overcome the air pressure within the control chamber 111 and drive the switch to move to disconnect the connection between the inlet chamber 112 and the outlet chamber 113. Therefore, the greater the air pressure within the control chamber 111, the greater the air pressure ultimately maintained in the outlet chamber 113, which in turn increases the air pressure ultimately maintained within the brake chamber 210. When the air pressure within the control chamber 111 is greater than or equal to the second preset air pressure, the corresponding air pressure within the outlet chamber 113 is greater than or equal to the brake pressure, and the trailer brake module of the present application can maintain the vehicle's trailer in a braked state.

[0074] Therefore, when the trailer brake module of the present application needs to brake the vehicle's trailer, the air pressure regulating assembly 300 controls the air source 700 to deliver air to the control chamber 111, causing the air pressure in the control chamber 111 to reach a second preset pressure. The air source 700 can then deliver air to the brake chamber 210 via the inlet chamber 112 and the outlet chamber 113. When the air pressure in the outlet chamber 113 is greater than or equal to the braking pressure, and the air pressure in the brake chamber 210 is also greater than or equal to the braking pressure, the switch element is driven to move to seal the connection between the inlet chamber 112 and the outlet chamber 113. The switch element is then balanced by the air pressure in the control chamber 111 and the inlet chamber 112. This allows the air pressure in the outlet chamber 113 and the brake chamber 210 to remain at the braking pressure, allowing the trailer brake assembly 200 to brake the vehicle's trailer.

[0075] When the brakes of the vehicle's trailer need to be released, the air pressure in the control chamber 111 can be adjusted by the air pressure regulating assembly 300 so that the air pressure in the control chamber 111 is less than a first preset air pressure. In this way, the force exerted by the gas in the control chamber 111 on the switch element is less than the force exerted by the gas in the air outlet chamber 113 on the switch element. The gas in the air outlet chamber 113 can drive the switch element to move, opening the connection between the air outlet chamber 113 and the exhaust chamber 114, thereby connecting the air outlet chamber 113 and the exhaust chamber 114. As a result, the brake chamber 210 can be connected to the atmosphere outside the valve body 110 through the air outlet chamber 113 and the exhaust chamber 114. The gas in the brake chamber 210 can be discharged into the atmosphere outside the valve body 110, making the air pressure in the brake chamber 210 and the air outlet chamber 113 less than the brake air pressure, thereby allowing the trailer brake assembly 200 to release the vehicle's trailer brake.

[0076] The first detection member 400 can detect whether the vehicle trailer is in a wading state, and the first detection member 400 is electrically connected to the air pressure regulating assembly 300. When the first detection member 400 detects that the vehicle is in a wading state, the air pressure regulating assembly 300 can control the air source 700 to deliver air to the control chamber 111 so that the air pressure in the control chamber 111 is greater than a first preset air pressure. In this way, when the air outlet chamber 113 is disconnected from the exhaust chamber 114, the air outlet chamber 113 is disconnected from the atmosphere. When the vehicle is wading, external moisture cannot enter the air outlet chamber 113, and thus cannot enter the brake air chamber 210, thereby protecting the trailer brake module of the present application.

[0077] When a vehicle is passing through a flooded section and proceeding normally, the air pressure in control chamber 111 can be adjusted via air pressure adjustment assembly 300 to be greater than a first preset pressure and less than a second preset pressure to avoid affecting the vehicle's passage. This disconnects outlet chamber 113 from exhaust chamber 114, and even if air is supplied from inlet chamber 112 to outlet chamber 113, increasing the air pressure in brake chamber 210, the air pressure in brake chamber 210 remains less than the braking pressure. This prevents the trailer brake module from braking the vehicle, allowing the vehicle to remain in passage without slowing down or braking, allowing the vehicle to quickly and safely pass through flooded sections.

[0078] In addition, it should be understood that when the vehicle is located on a flooded section and needs to brake, the air pressure in the control chamber 111 can be adjusted to be greater than the second preset air pressure through the air pressure regulating assembly 300. In this way, the gas delivered by the air source 700 to the brake chamber 210 through the air inlet chamber 112 and the air outlet chamber 113 can make the air pressure in the brake chamber 210 greater than or equal to the brake air pressure, and the air outlet chamber 113 and the exhaust chamber 114 are in a disconnected state, so that the vehicle can safely brake on the flooded section.

[0079] In some embodiments, reference Figures 1 to 3As shown, in order to control the opening and closing of the outlet chamber 113 and the exhaust chamber 114, and the opening and closing of the inlet chamber 112 and the outlet chamber 113, when the switch member moves, the switch member may include a piston 120, a valve 130, and an elastic member 140. The piston 120 and the valve 130 are movably disposed in the valve body 110, and the two ends of the elastic member 140 are respectively connected to the valve 130 and the valve body 110.

[0080] The piston 120 has a first end 121 and a second end 122, opposite each other. The first end 121 is located in the control chamber 111, and the second end 122 is located in the outlet chamber 113. The valve 130 is located on the side of the piston 120 facing away from the control chamber 111. When the air pressure in the control chamber 111 is greater than the air pressure in the outlet chamber 113 and greater than a predetermined pressure, the gas in the control chamber 111 pushes the first end 121 of the piston 120, causing the piston 120 to move in a first direction, i.e., toward the valve 130. This in turn pushes the valve 130 in the first direction. Accordingly, the elastic member 140 deforms under the influence of the valve 130, generating an elastic force. When the air pressure in the outlet chamber 113 reaches equilibrium with the air pressure in the control chamber 111, the restorative force of the elastic member 140 pushes the end of the valve 130 facing away from the piston 120, causing the valve 130 to move in a second direction opposite to the first direction.

[0081] The outlet chamber 113 has a first opening 113 a for communicating with the exhaust chamber 114 , and the inlet chamber 112 has a second opening 113 b communicating with the outlet chamber 113 .

[0082] When the air pressure regulating assembly 300 adjusts the air pressure within the control chamber 111 to a value greater than a first preset pressure, the gas within the control chamber 111 drives the piston 120 to move in a first direction, causing the piston 120 to face the first opening 113a, thereby blocking the first opening 113a. This disconnects the outlet chamber 113 from the exhaust chamber 114, preventing external moisture from entering the outlet chamber 113 through the exhaust chamber 114, thereby protecting the trailer brake module of the present application. The movement of the piston 120 in the first direction also drives the valve 130 to move in the first direction, separating the valve 130 from the second opening 113b. The valve 130 also causes the elastic member 140 to deform, generating an elastic force. At this point, the inlet chamber 112 and the outlet chamber 113 are connected, allowing the gas source 700 to deliver gas through the inlet chamber 112 to the outlet chamber 113, thereby delivering gas to the brake chamber 210.

[0083] When the air pressure in the outlet chamber 113 continues to increase until it reaches equilibrium with the air pressure in the control chamber 111, the gas in the control chamber 111 and the gas in the inlet chamber 112 can no longer drive the piston 120 and valve 130 to move. At this point, the elastic force of the elastic member 140 drives the valve 130 to move in the second direction, causing the valve 130 to block the second opening 113b. This prevents the air source 700 from delivering gas to the outlet chamber 113 through the inlet chamber 112, and the air pressure in the brake chamber 210 and the outlet chamber 113 can be maintained. If the air pressure in the control chamber 111 is greater than or equal to the second preset pressure, the air pressure in the brake chamber 210 can be maintained at or above the brake pressure, allowing the trailer brake module of the present application to maintain the vehicle's trailer brake state. If the air pressure in the control chamber 111 is lower than the second preset air pressure, the first opening 113a is in a disconnected state, and the air pressure in the brake air chamber 210 is lower than the brake air pressure, the vehicle trailer can pass safely when wading.

[0084] When the trailer's brakes need to be released, the air pressure regulating assembly 300 adjusts the air pressure in the control chamber 111 to be lower than the second preset pressure, so that the force exerted by the gas in the outlet chamber 113 on the piston 120 is greater than the force exerted by the gas in the control chamber 111 on the piston. The air pressure in the outlet chamber 113 drives the piston 120 to move in the second direction until the piston 120 separates from the first opening 113a. In this way, the air in the brake chamber 210 can be discharged to the atmosphere outside the valve body 110 through the outlet chamber 113 and the exhaust chamber 114, and the trailer's brakes can be released.

[0085] When the vehicle's trailer has passed the flooded section, the first detection member 400 can send a signal indicating that the vehicle's trailer has passed the flooded section to the air pressure regulating assembly 300. The air pressure regulating assembly 300 adjusts the air pressure in the control chamber 111 to be lower than the second preset air pressure, so that the force exerted by the gas in the air outlet chamber 113 on the piston 120 is greater than the force exerted by the gas in the control chamber 111 on the piston. The air pressure in the air outlet chamber 113 can drive the piston 120 to move in the second direction until the piston 120 separates from the first opening 113a. In this way, the gas in the brake air chamber 210 can be discharged to the atmosphere outside the valve body 110 through the air outlet chamber 113 and the exhaust chamber 114.

[0086] In some embodiments, reference Figures 1 to 3As shown, the control chamber 111, the outlet chamber 113, and the inlet chamber 112 in the valve assembly 100 of the present application can be arranged along the axial direction of the valve body 110, and the axial direction of the valve body 110 is the first direction. The outlet chamber 113 and the control chamber 111 are both arranged around the piston 120, which can increase the contact area between the gas in the outlet chamber 113 and the first end of the piston 120, and increase the contact area between the gas in the outlet chamber 113 and the second end of the piston 120, thereby making it easier for the gas in the control chamber 111 to drive the piston 120 to move in the first direction, and easier for the gas in the outlet chamber 113 to drive the piston 120 to move in the second direction.

[0087] The control chamber 111, the air outlet chamber 113, and the air inlet chamber 112 may be distributed along a first direction, such that the control chamber 111 may be entirely located at the first end of the piston 120, and the air outlet chamber 113 may be entirely located at the second end of the piston 120. This allows the air pressure in the control chamber 111 to fully act on the first end of the piston 120, and the air pressure in the air outlet chamber 113 to fully act on the second end of the piston 120.

[0088] In some embodiments, in order to allow the piston 120 to move in the first direction and block the first opening 113a, the outlet chamber 113 of the valve body 110 can be configured to surround the exhaust chamber 114, and the first opening 113a of the outlet chamber 113 can be configured as a sidewall of the outlet chamber 113, thereby conveniently connecting the outlet chamber 113 and the exhaust chamber 114. Accordingly, a portion of the piston 120 is also located within the exhaust chamber 114, so that when the piston 120 moves in the first direction, it can move to block the first opening 113a connected to the sidewall of the exhaust chamber 114.

[0089] In some embodiments, reference Figures 1 to 3 As shown, to allow the air source 700 to connect to both the control chamber 111 and the air intake chamber 112, the air intake chamber 112 may also include a third opening 112a. The third opening 112a of the air intake chamber 112 is connected to the air pressure regulating assembly 300, which is in turn connected to the control chamber 111. Gas inputted into the air intake chamber 112 by the air source 700 can enter the air pressure regulating assembly 300 through the third opening 112a, and then enter the control chamber 111 through the air pressure regulating assembly 300. In this way, part of the gas delivered to the air intake chamber 112 by the air source 700 can be delivered to the air outlet chamber 113, while another part of the gas delivered to the air intake chamber 112 by the air source 700 can be delivered to the control chamber 111. Accordingly, the air source 700 does not need to be separately connected to the air intake chamber 112 and the control chamber 111, thereby reducing the number of pipelines in the trailer brake module of the present application and simplifying the structure of the trailer brake module.

[0090] In some embodiments, reference Figures 1 to 3 As shown, in order for the air pressure regulating assembly 300 to adjust the pressure of the gas input from the gas source 700 into the valve assembly 100, the air pressure regulating assembly 300 may be provided with a first on-off member 310 and a second on-off member 320. The inlet end of the first on-off member 310 is in communication with the third opening 112a of the inlet chamber 112, so that the gas input from the gas source 700 into the air pressure regulating assembly 300 through the inlet chamber 112 first passes through the first on-off member 310. The outlet end of the first on-off member 310 is in communication with the control chamber 111 of the valve assembly 100. The inlet end of the second on-off member 320 is connected to the control chamber 111, and the outlet end of the second on-off member 320 may be connected to the exhaust chamber 114. The opening and closing timings of the first and second on-off members 310, 320 can be adjusted as needed. When the first on-off member 310 is open, gas from the gas source 700 can pass through the first on-off member 310 and enter the control chamber 111 through the outlet of the first on-off member 310. At this time, the second on-off member 320 is closed, allowing the gas that has passed through the first on-off member 310 to enter the control chamber 111. It should be understood that the greater the amount of gas that enters the control chamber 111 after passing through the first on-off member 310, the greater the pressure of the gas in the control chamber 111 and, ultimately, the greater the pressure of the gas that enters the brake chamber 210. Therefore, by adjusting the opening and closing timings of the first on-off member 310, the pressure of the gas input into the control chamber 111 can be adjusted, thereby adjusting the pressures in the gas chamber 113 and the brake chamber 210 accordingly.

[0091] When it is necessary to reduce the air pressure in the brake chamber 210 and the air outlet chamber 113 to release the brakes on the trailer, the second switch 320 can be opened, allowing the gas in the control chamber 111 to be discharged into the exhaust chamber 114 through the second switch 320 and ultimately discharged into the external environment through the exhaust chamber 114. This can reduce the air pressure in the control chamber 111 to a level lower than that in the air outlet chamber 113. Therefore, the first switch 310 and the second switch 320 can cooperate to precisely control the pressure of the gas ultimately inputted into the control chamber 111 from the air source 700. The first switch 310 and the second switch 320 can be solenoid valves.

[0092] In some embodiments, reference Figure 6As shown, the trailer brake module of the present application may also include a third on-off member 500. The third on-off member 500 may be disposed between the outlet chamber 113 of the valve assembly 100 and the brake chamber 210 of the trailer brake assembly 200. The third on-off member 500 is configured to connect or disconnect the outlet chamber 113 from the brake chamber 210. When the first detection member 400 detects that the vehicle trailer is wading through water, the third on-off member 500 may be configured to close, disconnecting the outlet chamber 113 from the brake chamber 210. This prevents gas from entering the outlet chamber 113 even if the air pressure within the outlet chamber 113 is greater than or equal to a second preset pressure. The air pressure within the brake chamber 210 is maintained below the braking pressure, thereby ensuring that the vehicle can safely pass through wading sections without braking. This further enhances the safety of the vehicle trailer when wading through water. The third on-off member 500 may also be a solenoid valve.

[0093] In addition, when the trailer of the vehicle is in a wading and non-braking state, the third on-off piece 500 can be set to be closed, so that the gas in the air outlet chamber 113 cannot enter the brake air chamber 210, thereby further reducing the air pressure in the brake air chamber 210, thereby further reducing the impact on the driving condition of the vehicle.

[0094] In some embodiments, reference Figure 5 As shown, the trailer brake module of the present application may also be provided with a second detection member 600, which is electrically connected to the air pressure regulating assembly 300, and the second detection member 600 is configured to detect the air pressure of the control chamber 111. When the trailer of the vehicle releases the brakes, the air pressure of the control chamber 111 decreases, so that the piston 120 can be moved in the second direction. When the air pressure of the control chamber 111 decreases to less than the first preset air pressure, the air outlet chamber 113 is connected to the exhaust chamber 114, and the gas in the air outlet chamber 113 can be discharged to the atmosphere through the exhaust chamber 114. When the second detection member 600 detects that the air pressure in the control chamber 111 decreases to less than the first preset air pressure, it indicates that the air outlet chamber 113 and the exhaust chamber 114 are connected. Accordingly, the piston 120 returns to its initial position. In this way, when the first detection component 400 detects that the vehicle's trailer is wading again and is not braking, gas can continue to be delivered to the control chamber 111 through the air source 700, so that the control chamber 111 increases to a pressure greater than the first preset air pressure and less than the second preset air pressure, so that the air outlet chamber 113 and the exhaust chamber 114 are closed again.

[0095] In some embodiments, the first detection member 400 can be configured as a water sensor to detect whether the trailer of the vehicle is wading. Specifically, the first detection member 400 can be disposed on the trailer or chassis of the vehicle. When the trailer of the vehicle is wading, water can contact the detection end of the water sensor, thereby determining that the trailer is wading. The water sensor can then send a signal to the air pressure regulating assembly 300.

[0096] In addition, in other embodiments, reference Figures 1 to 3 As shown, the first detection member 400 can also be set on the valve assembly 100, so that the first detection member 400 can be set using the space on the valve assembly 100, thereby making the trailer brake module of the present application more integrated and more compact.

[0097] Specifically, the first detection component 400 can be arranged in the exhaust chamber 114 of the valve body 110, the outer wall of the first detection component 400 can be connected to the inner wall of the exhaust chamber 114, and part of the first detection component 400 has a gap with the inner wall of the exhaust chamber 114, so as not to interfere with the gas being discharged into the atmosphere through the exhaust chamber 114.

[0098] When the vehicle is in a wading state and water vapor enters the exhaust chamber 114, the first detection component 400 can detect the presence of water vapor in the exhaust chamber 114. The first detection component 400 can transmit a signal to the control component 800 to adjust the air pressure in the control chamber 111, so that the connection between the exhaust chamber 114 and the air outlet chamber 113 is disconnected, thereby preventing water vapor in the exhaust chamber 114 from entering the air outlet chamber 113.

[0099] The second detecting member 600 can be configured as an air pressure sensor. The second detecting member 600 can be disposed in the valve assembly 100 . The second detecting member 600 can detect the air pressure in the first cavity.

[0100] The trailer brake module of the present application may also include a control assembly 800, which is electrically connected to the air pressure regulating assembly 300, the first detection member 400, the second detection member 600, and the third on-off member 500. Detection signals from the first detection member 400 and the second detection member 600 may be transmitted to the control assembly 800, which may then control the air pressure regulating assembly 300 and the third on-off member 500 accordingly.

[0101] Based on the above trailer brake module, the present application also proposes a vehicle, which includes the above trailer brake module.

[0102] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned implementation modes, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned implementation modes, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation modes of the present application.

Claims

1. A trailer brake module, applied to a vehicle trailer, characterized in that: include: A valve assembly (100), comprising a valve body (110) and a switch element, wherein the valve body (110) has an air outlet chamber (113) and a control chamber (111), one end of the air outlet chamber (113) is connected to an air source (700), the control chamber (111) is connected to the air source (700), the air outlet chamber (113) is further connected to the outside of the valve body (110), and the switch element is movably arranged on the valve body (110); The trailer brake assembly (200) has a brake air chamber (210), wherein the brake air chamber (210) and the air outlet chamber (113) are connectable and disconnectable. When the air pressure of the brake air chamber (210) is greater than or equal to the brake air pressure, the trailer brake assembly (200) brakes the trailer of the vehicle; When the air pressure of the control chamber (111) is greater than a first preset air pressure, the gas in the control chamber (111) drives the switch element to move to disconnect the connection between the air outlet chamber (113) and the outside of the valve body (110), and open the connection between the air source (700) and the air outlet chamber (113); When the air pressure of the air outlet chamber (113) increases to a point where the air pressure of the air outlet chamber (113) is balanced with the air pressure of the control chamber (111), the switch element is driven to move to disconnect the connection between the air outlet chamber (113) and the air source (700); When the air pressure of the control chamber (111) is greater than or equal to a second preset air pressure, the air pressure of the air outlet chamber (113) is not less than the brake air pressure; a first detection member (400), the first detection member (400) being configured to detect whether the trailer of the vehicle is in a wading state; When the trailer of the vehicle is in a wading non-braking state, the pressure of the gas input from the gas source (700) into the control chamber (111) is greater than the first preset pressure and less than the second preset pressure.

2. The trailer brake module according to claim 1, characterized in that: When the force exerted by the air pressure in the control chamber (111) on the switch element is less than the force exerted by the gas in the air outlet chamber (113) on the switch element, the gas in the air outlet chamber (113) drives the switch element to move to open the connection between the air outlet chamber (113) and the outside of the valve body (110).

3. The trailer brake module according to claim 2, characterized in that: The valve body (110) further comprises an air inlet chamber (112), and the air outlet chamber (113) is connected to the air source (700) via the air inlet chamber (112).

4. The trailer brake module according to claim 3, characterized in that: The valve body (110) further comprises an exhaust chamber (114), and the air outlet chamber (113) is communicated with the outside of the valve body (110) through the exhaust chamber (114).

5. The trailer brake module according to claim 4, characterized in that: The switch element comprises a piston (120) and a valve (130), wherein the piston (120) and the valve (130) are movably arranged in the valve body (110), the piston (120) having a first end (121) and a second end (122) opposite to each other, the first end (121) being located in the control chamber (111), and the second end (122) being located in the air outlet chamber (113), the valve (130) being located on a side of the piston (120) facing away from the control chamber (111), and the side of the valve (130) facing away from the control chamber (111) being located in the air inlet chamber (112), the air outlet chamber (113) having a first opening (113a) for communicating with the air exhaust chamber (114), and the air inlet chamber (112) having a second opening (113b) communicating with the air outlet chamber (113); When the air pressure in the control chamber (111) is greater than the first preset air pressure, the gas in the control chamber (111) drives the piston (120) and the valve (130) to move along a first direction, so that the piston (120) is opposite to the first opening (113a) to block the first opening (113a), and the valve (130) is separated from the second opening (113b), wherein the first direction is the direction of the piston (120) toward the valve (130); When the air pressure in the control chamber (111) is balanced with the air pressure in the air inlet chamber (112), the valve (130) is driven to move in a second direction so that the valve (130) blocks the second opening (113b), and the second direction is opposite to the first direction; When the force exerted by the gas in the control chamber (111) on the first end (121) is smaller than the force exerted by the gas in the gas outlet chamber (113) on the second end (122), the gas in the gas outlet chamber (113) drives the piston (120) to move along the second direction, so that the piston (120) is separated from the first opening (113a).

6. The trailer brake module according to claim 5, characterized in that: The switch element further includes an elastic element (140), one end of the elastic element (140) is connected to the valve body (110), and the other end of the elastic element (140) is connected to the valve (130); When the first opening (113a) is closed and the second opening (113b) is opened, the elastic member (140) is deformed and has elastic force; When the air pressure in the control chamber (111) is balanced with the air pressure in the air inlet chamber (112), the elastic force of the elastic member (140) drives the valve (130) and the piston (120) to move in the second direction, so that the valve (130) blocks the second opening (113b).

7. The trailer brake module according to claim 6, characterized in that: The air outlet chamber (113) and the control chamber (111) are both arranged around the piston (120), and the air inlet chamber (112) is arranged around the valve (130).

8. The trailer brake module according to claim 7, characterized in that: The air outlet chamber (113) is arranged around the exhaust chamber (114), and the first opening (113a) is arranged on a side wall of the air outlet chamber (113).

9. The trailer brake module according to claim 4, characterized in that: The trailer brake module further includes an air pressure regulating assembly (300), wherein the air pressure regulating assembly (300) is configured to regulate the air pressure in the control chamber (111).

10. The trailer brake module according to claim 9, characterized in that: The air inlet chamber (112) further has a third opening (112a), the third opening (112a) is connected to the air pressure regulating assembly (300), and the air pressure regulating assembly (300) is connected to the control chamber (111).

11. The trailer brake module according to claim 10, characterized in that: The air pressure regulating assembly (300) comprises a first on-off member (310) and a second on-off member (320), wherein the air inlet end of the first on-off member (310) is connected to the third opening (112a), the first on-off member (310) has a first air outlet end and a second air outlet end, the first air outlet end of the first on-off member (310) is connected to the control chamber (111), the second air outlet end of the first on-off member (310) is connected to the air inlet end of the second on-off member (320), and the air outlet end of the second on-off member (320) is connected to the exhaust chamber (114).

12. The trailer brake module according to any one of claims 1 to 11, characterized in that: The invention also includes a third on-off piece (500), which is arranged between the air outlet chamber (113) and the brake air chamber (210), and the third on-off piece (500) is configured to connect or disconnect the air outlet chamber (113) and the brake air chamber (210).

13. The trailer brake module according to any one of claims 9 to 11, characterized in that: It also includes a second detection member (600), the second detection member (600) is electrically connected to the air pressure regulating assembly (300), and the second detection member (600) is configured to detect the air pressure of the control chamber (111); When the air pressure in the control chamber (111) is less than or equal to the first preset air pressure, the air pressure regulating assembly (300) is configured to regulate the air pressure of the gas input from the air source (700) to the valve assembly (100) to be greater than the first preset air pressure.

14. The trailer brake module according to claim 13, characterized in that: The first detection component (400) is a water wading sensor, the first detection component (400) is arranged on the trailer of the vehicle, and the second detection component (600) is an air pressure sensor.

15. A vehicle, characterized in that: The invention comprises a trailer brake module according to any one of claims 1 to 14.

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