Automatic emergency brake valve assembly of commercial vehicle and engineering vehicle

Abstract

The utility model belongs to the technical field of vehicle braking, and particularly relates to an automatic emergency brake valve assembly for a commercial vehicle and an engineering vehicle, the brake valve assembly comprises a gas circuit structure main body, a first gas inlet, a second gas outlet, a third gas outlet and a fourth gas inlet; the first electromagnetic valve mechanism and the second electromagnetic valve mechanism are both arranged on the gas circuit structure body, the first electromagnetic valve mechanism is of a normally closed type, a normally closed type electromagnetic valve can be a switching valve or a linear valve, and the second electromagnetic valve mechanism is of a normally open type; the two-way one-way valve is mounted on the gas path structure main body; and the controller is used for controlling air inlet and outlet of the air path structure main body and power-on and power-off of the first electromagnetic valve mechanism and the second electromagnetic valve mechanism. The first electromagnetic valve mechanism, the second electromagnetic valve mechanism and the gas circuit structure body are combined, the function of intelligent driving AEB can be rapidly achieved, and meanwhile the requirement that a commercial vehicle pneumatic braking system is matched with EBS regulations can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle braking, and in particular relates to an automatic emergency brake valve assembly for a commercial vehicle and an engineering vehicle. Background Art

[0002] The ABS pneumatic system, or Anti-lock Braking System (ABS), is a safety technology widely used in automotive braking systems. It monitors the rotation of each wheel and automatically adjusts braking force during emergency braking to prevent wheel locking, which could lead to loss of control or skidding.

[0003] Existing vehicles equipped only with ABS air brake systems face a technical limitation: the difficulty in directly integrating the Automatic Emergency Braking (AEB) function of advanced intelligent driver assistance systems. Therefore, there is an urgent need to develop an automatic emergency brake valve assembly for commercial vehicles and engineering vehicles to address this technical issue. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic emergency brake valve assembly for a commercial vehicle and an engineering vehicle to solve the above problems.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] An automatic emergency brake valve assembly for a commercial vehicle, comprising:

[0007] The air circuit structure includes an air inlet 1, an air outlet 2, an air outlet 3, and an air inlet 4. The air inlet 1 is connected to the air tank installed on the vehicle, the air outlet 2 is connected to the relay valve, the air outlet 3 is connected to the atmosphere, and the air inlet 4 is connected to the brake foot valve.

[0008] A first solenoid valve mechanism and a second solenoid valve mechanism are both provided on the gas path structure body, the first solenoid valve mechanism is a normally closed type, and the second solenoid valve mechanism is a normally open type;

[0009] A two-way one-way valve, the two-way one-way valve being installed on the main body of the air path structure and being connected to the first air inlet and the fourth air inlet;

[0010] A controller is used to control the air inlet and outlet of the air path structure body and the on and off of the first solenoid valve mechanism and the second solenoid valve mechanism, so that the automatic emergency brake valve assembly can switch between the first working mode and the second working mode.

[0011] Preferably, the controller is installed inside a controller housing, and the controller housing includes a controller upper housing and a controller lower housing, and the controller is connected and fixed to the controller lower housing by bolts.

[0012] Preferably, the controller upper shell and the controller lower shell are connected together by snaps.

[0013] Preferably, the air path structure main body is installed inside the air path structure shell, and the air path structure shell includes an air path structure upper shell and an air path structure lower shell. The air path structure upper shell and the controller lower shell, the air path structure main body and the air path structure lower shell, and the air path structure upper shell and the air path structure lower shell are connected by bolts.

[0014] Preferably, the outer sides of the two first solenoid valve mechanisms and the second solenoid valve mechanisms are covered with a same coil assembly, the coil assembly is magnetically matched with the first solenoid valve mechanism and the second solenoid valve mechanism, and the coil assembly is installed on the air path structure body.

[0015] Preferably, a muffler is riveted to the outer side of the lower shell of the air path structure.

[0016] Preferably, the normally closed solenoid valve may be an on-off valve or a linear valve.

[0017] An engineering vehicle comprises the aforementioned commercial vehicle automatic emergency brake valve assembly.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] The utility model can quickly realize the function of intelligent driving AEB by combining the first solenoid valve mechanism, the second solenoid valve mechanism and the air path structure body. At the same time, since the first solenoid valve mechanism and the second solenoid valve mechanism are integrated with the control system, the requirements of the commercial vehicle pneumatic braking system for matching EBS regulations can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work:

[0021] Figure 1 The overall structure of the device of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The overall structure of the device of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 for Figure 1 Exploded diagram;

[0024] Figure 4 A route map for air intake in the first working mode;

[0025] Figure 5 A route map for air intake in the second working mode;

[0026] Figure 6 Roadmap for exhausting both operating modes;

[0027] Among them, 1. Air path structure main body; 3. Two-way one-way valve; 4. Controller; 5. Controller shell; 6. Air path structure shell; 7. Coil assembly; 8. Muffler; 101. Air inlet one; 102. Air outlet two; 103. Air outlet three; 104. Air inlet four; 501. Controller upper shell; 502. Controller lower shell; 601. Air path structure upper shell; 602. Air path structure lower shell. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] Example:

[0031] Reference Figures 1 to 6 The utility model discloses an automatic emergency brake valve assembly for a commercial vehicle, comprising:

[0032] The air circuit structure body 1 includes an air inlet 101, an air outlet 102, an air outlet 103, and an air inlet 104. The air inlet 101 is connected to the air tank installed on the vehicle, the air outlet 102 is connected to the relay valve, the air outlet 103 is connected to the atmosphere, and the air inlet 104 is connected to the brake foot valve.

[0033] The first solenoid valve mechanism and the second solenoid valve mechanism are both arranged on the air path structure body 1. The first solenoid valve mechanism is a normally closed type, which can be an on-off valve or a linear valve. The second solenoid valve mechanism is a normally open type.

[0034] Two-way one-way valve 3, the two-way one-way valve 3 is installed on the air path structure body 1, and the two-way one-way valve 3 is connected to the air inlet 101 and the air inlet 4 104;

[0035] The controller 4 is used to control the air inlet and outlet of the air path structure body 1 and the power on and off of the first solenoid valve mechanism and the second solenoid valve mechanism, so that the automatic emergency brake valve assembly can switch between the first working mode and the second working mode.

[0036] The utility model can quickly realize the function of intelligent driving AEB by combining the first solenoid valve mechanism, the second solenoid valve mechanism and the air path structure body 1. At the same time, since the first solenoid valve mechanism and the second solenoid valve mechanism are integrated with the control system, the requirements of the commercial vehicle pneumatic braking system for matching EBS regulations can be met.

[0037] According to a further optimized solution, the controller 4 is installed inside the controller housing 5 . The controller housing 5 includes an upper controller housing 501 and a lower controller housing 502 . The controller 4 is connected and fixed to the lower controller housing 502 by bolts.

[0038] According to a further optimized solution, the controller upper shell 501 and the controller lower shell 502 are connected together by snap fasteners.

[0039] Further optimization scheme, the air path structure main body 1 is installed inside the air path structure shell 6, the air path structure shell 6 includes an air path structure upper shell 601 and an air path structure lower shell 602, the air path structure upper shell 601 and the controller lower shell 502, the air path structure main body 1 and the air path structure lower shell 602, and the air path structure upper shell 601 and the air path structure lower shell 602 are connected by bolts.

[0040] To further optimize the solution, the outer sides of the two first solenoid valve mechanisms and the second solenoid valve mechanisms are provided with a same coil assembly 7, the coil assembly 7 is magnetically matched with the first solenoid valve mechanism and the second solenoid valve mechanism, and the coil assembly 7 is installed on the air path structure main body 1.

[0041] The two first solenoid valve mechanisms and the second solenoid valve mechanism share the same coil assembly 7, which reduces the number of required coils and makes the overall layout more compact, which is conducive to saving space, which is particularly important for system design with limited space.

[0042] The two valve cores controlled by a common coil can achieve better synchronization in their movements, which is crucial for systems that require precise coordination of the operation of various components (such as pressure balance control in the braking system), and helps improve system stability and response speed.

[0043] As a further optimization solution, a muffler 8 is riveted to the outer side of the lower shell 602 of the air path structure.

[0044] The muffler 8 is directly integrated on the lower shell 602 of the air path structure, which can effectively absorb and reduce the noise generated when the air flows through.

[0045] On the other hand, this embodiment also provides an implementation method. The implementation method provided in this embodiment and the commercial vehicle automatic emergency brake valve assembly provided in the above embodiment can be referenced in terms of working methods.

[0046] The method comprises the following steps:

[0047] The controller 4 controls the air inlet and outlet of the air path structure main body 1 and the power on and off of the first solenoid valve mechanism and the second solenoid valve mechanism, so that the automatic emergency brake valve assembly of the commercial vehicle can switch between the first working mode and the second working mode; wherein:

[0048] In the first working mode, the controller 4 controls the first and second solenoid valve mechanisms to be energized simultaneously, and the controller controls the pressure gas to be delivered to the first inlet 101. The pressure gas passes through the gas path structure body 1 and the two-way check valve 3 and then flows out from the second outlet 102 to the relay valve. (As shown in the figure Figure 4 As shown, Figure 4 The NC solenoid valve corresponds to the first solenoid valve mechanism mentioned above and is a normally closed solenoid valve. The NO solenoid valve corresponds to the second solenoid valve mechanism mentioned above and is a normally open solenoid valve. The same applies below.)

[0049] In the second working mode, the controller 4 controls the first and second solenoid valve mechanisms to be de-energized simultaneously, and the controller controls the pressure gas to be delivered to the fourth inlet 104. The pressure gas passes through the gas path structure body 1 and the two-way check valve 3 and then flows out from the second outlet 102 to the relay valve. (As shown in the figure Figure 5 shown)

[0050] Further optimization scheme, the exhaust process of the first working mode and the second working mode is: the controller 4 controls the first solenoid valve mechanism and the second solenoid valve mechanism to cut off the power at the same time, and the pressurized gas flows out from the gas outlet 103 after passing through the gas path structure body 1 and the second solenoid valve mechanism to achieve exhaust. (As shown in Figure 6 shown)

[0051] On the other hand, the present embodiment also provides an engineering vehicle, including a commercial vehicle automatic emergency brake valve assembly provided in the above embodiment, wherein the commercial vehicle automatic emergency brake valve assembly provided in the above embodiment is integrated on the frame of the engineering vehicle, wherein the air inlet 101 is connected to the air tank installed on the vehicle, the air outlet 2 102 is connected to the relay valve, the air outlet 3 103 is connected to the atmosphere, and the air inlet 4 104 is connected to the brake foot valve. It should be noted that the engineering vehicle provided in this embodiment has all the advantages of the commercial vehicle automatic emergency brake valve assembly provided in the above embodiment.

[0052] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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. Therefore, they should not be understood as limitations on the present invention.

[0053] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A commercial vehicle automatic emergency brake valve assembly, characterized in that: include: The air path structure main body (1) comprises an air inlet 1 (101), an air outlet 2 (102), an air outlet 3 (103), and an air inlet 4 (104), wherein the air inlet 1 (101) is connected to an air storage tank installed on a vehicle, the air outlet 2 (102) is connected to a relay valve, the air outlet 3 (103) is connected to the atmosphere, and the air inlet 4 (104) is connected to a brake foot valve; A first solenoid valve mechanism and a second solenoid valve mechanism are both arranged on the air path structure main body (1), the first solenoid valve mechanism is a normally closed type, and the second solenoid valve mechanism is a normally open type; A two-way one-way valve (3), the two-way one-way valve (3) being mounted on the air path structure main body (1), the two-way one-way valve (3) being in communication with the first air inlet (101) and the fourth air inlet (104); A controller (4) is used to control the air inlet and outlet of the air path structure main body (1) and the on / off switching of the first solenoid valve mechanism and the second solenoid valve mechanism, so that the automatic emergency brake valve assembly can switch between the first working mode and the second working mode.

2. The automatic emergency brake valve assembly for commercial vehicles according to claim 1, characterized in that: The controller (4) is installed inside a controller housing (5), and the controller housing (5) comprises a controller upper housing (501) and a controller lower housing (502). The controller (4) is connected and fixed to the controller lower housing (502) by bolts.

3. The automatic emergency brake valve assembly for commercial vehicles according to claim 2, characterized in that: The controller upper shell (501) and the controller lower shell (502) are connected together by snap fastening.

4. The automatic emergency brake valve assembly for a commercial vehicle according to claim 2, characterized in that: The gas path structure main body (1) is installed inside the gas path structure housing (6); the gas path structure housing (6) comprises an upper gas path structure housing (601) and a lower gas path structure housing (602); the upper gas path structure housing (601) and the controller lower housing (502), the gas path structure main body (1) and the gas path structure lower housing (602), and the upper gas path structure housing (601) and the gas path structure lower housing (602) are connected by bolts.

5. The automatic emergency brake valve assembly for a commercial vehicle according to claim 1, characterized in that: The outer sides of the two first solenoid valve mechanisms and the second solenoid valve mechanisms are covered with a same coil assembly (7), the coil assembly (7) is magnetically matched with the first solenoid valve mechanism and the second solenoid valve mechanism, and the coil assembly (7) is installed on the air path structure body (1).

6. The automatic emergency brake valve assembly for a commercial vehicle according to claim 4, characterized in that: A muffler (8) is riveted onto the outer side of the lower shell (602) of the air path structure.

7. The automatic emergency brake valve assembly for a commercial vehicle according to claim 1, characterized in that: Normally closed solenoid valves can be on-off valves or linear valves.

8. An engineering vehicle, characterized in that: A commercial vehicle automatic emergency brake valve assembly comprising any one of claims 1-7.

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