Electromagnetic regulating valve, vehicle pneumatic brake system with electromagnetic regulating valve and vehicle

Abstract

The utility model provides an electromagnetic regulating valve which comprises a first split body, a second split body, an electromagnetic valve assembly and a fixing part, the electromagnetic valve assembly is located between the first split body and the second split body, and the first split body and the second split body are detachably installed together through the fixing part. And the electromagnetic valve assembly, the first split body and the second split body are assembled together. The electromagnetic regulating valve is further provided with an air inlet hole and an air outlet hole, the electromagnetic valve assembly comprises a body and a valve element, the body is provided with a movable cavity for the valve element to move, the air inlet hole and the air outlet hole are communicated with the movable cavity, and the valve element at least corresponds to the air inlet hole and is used for controlling opening or closing of the air inlet hole. When the air inlet hole is opened, external airflow enters the electromagnetic regulating valve and flows out of the air outlet hole, and when the air inlet hole is closed, the external airflow is prevented from entering the electromagnetic regulating valve, so that the air pressure of the air outlet hole is controlled. In addition, the utility model further provides a vehicle pneumatic brake system and a vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air brake, in particular to an electromagnetic regulating valve and a vehicle air brake system and a vehicle with the electromagnetic regulating valve. Background Art

[0002] The air brake system can better guarantee the braking efficiency and safety of the car. However, emergency braking to alleviate or reduce accidents in dangerous situations still relies on human control, and its effectiveness and safety are far from meeting the operating requirements of modern traffic conditions.

[0003] In order to overcome the shortcomings of human control, an automatic emergency vehicle air brake system has emerged in the prior art, which can automatically perform emergency braking when a car encounters a dangerous situation while driving. The existing automatic vehicle air brake system usually uses an electromagnetic regulating valve to adjust the size of the brake air pressure. However, the existing electromagnetic regulating valve has a complex structure and many air circuit access points. Therefore, the existing electromagnetic regulating valve has poor inheritance, and the installation of this electromagnetic regulating valve requires a large modification of the original vehicle. In addition, the existing electromagnetic regulating valve is usually integrated, and if the parts are damaged, it is difficult to repair or replace. Utility Model Content

[0004] In view of this, the present application provides an electromagnetic regulating valve with strong inheritance and convenient installation and disassembly, and a vehicle air brake system and vehicle with the electromagnetic regulating valve.

[0005] In the first aspect, the present application provides an electromagnetic regulating valve, which comprises a first sub-body, a second sub-body, an electromagnetic valve assembly, and a fixing member. The electromagnetic valve assembly is located between the first sub-body and the second sub-body, and the first sub-body and the second sub-body are detachably mounted together through the fixing member, so that the electromagnetic valve assembly, the first sub-body and the second sub-body are assembled together. The electromagnetic regulating valve is also provided with an air inlet and an air outlet, and the electromagnetic valve assembly comprises a body and a valve core, and the body is provided with an active cavity for the movement of the valve core, the air inlet and the air outlet are connected with the active cavity, and the valve core at least corresponds to the air inlet, and is used to control the opening or closing of the air inlet. When the air inlet is opened, the external airflow enters the electromagnetic regulating valve and flows out from the air outlet, and when the air inlet is closed, the external airflow is prevented from entering the electromagnetic regulating valve, thereby controlling the air pressure of the air outlet.

[0006] Furthermore, the electromagnetic regulating valve is also provided with an exhaust port, which is connected to the active cavity. There are at least two valve cores, one of which corresponds to the exhaust port and is used to control the opening or closing of the exhaust port. When the exhaust port is opened, the airflow in the electromagnetic regulating valve is discharged from the exhaust port, thereby reducing the air pressure of the air outlet.

[0007] Furthermore, the first split body is provided with a first fixing portion arranged opposite to the second split body, the second split body is provided with a second fixing portion corresponding to the first fixing portion, the first fixing portion and the second fixing portion are connected by the fixing member, and the fixing member is located outside the solenoid valve assembly.

[0008] Furthermore, the air inlet and the air outlet are arranged on the first split body, the air outlet is arranged on the second split body, and the air inlet and the air outlet are located on opposite sides of the electromagnetic regulating valve.

[0009] Furthermore, the solenoid valve assembly integrates two two-position two-way valves, and the number of the valve cores is two.

[0010] Furthermore, the electromagnetic regulating valve also includes an air pressure sensor, which is arranged on the air path where the air flows through the air outlet and is used to sense the air pressure value of the air outlet.

[0011] Further, the solenoid regulating valve is connected to a main control device, and the main control device controls the at least two valve cores of the solenoid regulating valve according to the air pressure value and a preset adjustment strategy to control the opening and closing of the air inlet and the exhaust port, wherein the preset adjustment strategy is: when the air pressure value does not reach a preset threshold value, the solenoid valve assembly is controlled to open the air inlet and close the exhaust port; when the air pressure value exceeds the preset threshold value, the solenoid valve assembly is controlled to close the air inlet and open the exhaust port; when the air pressure value is equal to the preset threshold value, the solenoid valve assembly is controlled to close the air inlet and close the exhaust port.

[0012] In a second aspect, the present application provides a vehicle air brake system, comprising an air reservoir, a brake valve, a relay valve, and a brake device. The brake valve can operably control the relay valve to open, so that the airflow in the air reservoir flows from the relay valve into the brake device, thereby driving the brake device to control the vehicle braking. The air brake system also includes the electromagnetic regulating valve, which is arranged between the air reservoir and the relay valve, and is used to control the airflow in the air reservoir to flow into or stop flowing into the relay valve and control the air pressure flowing into the relay valve. The electromagnetic regulating valve includes a first split body, a second split body, a solenoid valve assembly, and a fixing. The solenoid valve assembly is located between the first split body and the second split body, and the first split body and the second split body are detachably mounted together through the fixing, so that the solenoid valve assembly, the first split body, and the second split body are assembled together. The solenoid valve assembly includes a body and at least two valve cores, and the body is provided with an active cavity for the at least two valve cores to move. The electromagnetic regulating valve is also provided with an air inlet, an air outlet, and an exhaust port, wherein the air inlet, the air outlet, and the exhaust port are in communication with the active cavity, and the at least two valve cores correspond to the air inlet and the exhaust port, respectively, to control the opening or closing of the air inlet and the exhaust port. When the air inlet is opened, the external airflow enters the electromagnetic regulating valve and flows out from the air outlet, and when the exhaust port is opened, the airflow in the electromagnetic regulating valve flows out from the exhaust port, thereby controlling the airflow pressure of the air outlet.

[0013] Furthermore, the vehicle air brake system also includes a visual sensing system and a main control device, and the main control device is communicatively connected with the visual sensing system and the electromagnetic regulating valve; the visual sensing system is used to sense the driving environment of the vehicle and send the visual sensing results to the main control device, the main control device receives the visual sensing results and decides whether to issue a braking command to the electromagnetic regulating valve according to the visual sensing results, and the electromagnetic regulating valve controls the movement of the at least two valve cores in response to the braking command, thereby opening or closing the air inlet and the exhaust port; the main control device is also used to receive the air pressure value fed back by the air pressure sensor, and control the electromagnetic regulating valve to adjust the air pressure value of the air outlet according to the fed back air pressure value.

[0014] In a third aspect, the present application provides a vehicle, comprising a vehicle body and a vehicle air brake system arranged on the vehicle body.

[0015] The above one or more technical solutions in the utility model have at least one of the following technical effects: the electromagnetic regulating valve is structurally divided into three parts: a first sub-body, a second sub-body, and an electromagnetic valve assembly, and the three parts are detachably connected by fixings, which is convenient for installation and disassembly, and further convenient for maintenance and parts replacement. The electromagnetic regulating valve provides an air inlet and an air outlet to communicate with other components in the vehicle air brake system, and has few air circuit access nodes. When installing the electromagnetic regulating valve, the original air circuit and electrical wiring can be reused to the maximum extent, with little modification to the vehicle, reducing the modification cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the electromagnetic regulating valve provided in this implementation case.

[0018] Figure 2 It is a structural diagram of the first split provided in this implementation case.

[0019] Figure 3 It is a schematic diagram of the structure of the second split provided in this implementation case.

[0020] Figure 4 It is a structural schematic diagram of the solenoid valve assembly provided in this implementation case.

[0021] Figure 5 It is an electrical schematic diagram of the electromagnetic control valve provided in this implementation case.

[0022] Figure 6 It is a structural schematic diagram of the vehicle air brake system provided in this implementation case.

[0023] Figure 7 It is a schematic diagram of the structure of the vehicle provided in this implementation case.

[0024] The numbers in the figure are as follows:

[0025] Solenoid control valve 1 first split 11

[0026] Air inlet 111 Air outlet 112

[0027] First fixing portion 113 Air intake pipe 114

[0028] Air outlet pipe 115 Mounting portion 116

[0029] Second split body 12 Exhaust port 121

[0030] Second fixing portion 122 Solenoid valve assembly 13

[0031] Body 131 First solenoid valve 132

[0032] Second solenoid valve 133 First return spring 134

[0033] Second return spring 135 fixing member 14

[0034] Air pressure sensor 15 Air tank 2

[0035] Brake valve 3 Relay valve 4

[0036] Braking device 5 Visual sensor system 6

[0037] Main control device 7 One-way two-way valve 8

[0038] Common terminal 81 First switching terminal 82

[0039] Second switch end 83 Vehicle air brake system 100

[0040] Car body 200 Vehicle 1000

[0041] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0043] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar planning objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate. In other words, the described embodiments are implemented according to a sequence other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations may also include other content. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to only those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] It should be noted that the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] The electromagnetic regulating valve is a valve assembly installed in the vehicle air brake system. The vehicle air brake system can also be combined with a forward visual sensor system. The visual sensor system is used to sense the vehicle's operating status and surrounding environment to determine whether the vehicle needs to be braked. When braking is required, the main control device with a control algorithm outputs a braking command to the electromagnetic regulating valve. Then, the electromagnetic regulating valve adjusts the brake air pressure of the vehicle air brake system through the braking command to perform automatic braking without affecting the original vehicle's execution system. The dual protection of manual air braking and automatic air braking solves the problem that the manually operated vehicle air brake system cannot meet the requirements of effectiveness and safety.

[0046] See also Figure 1 , Figure 1 It is a structural schematic diagram of the electromagnetic regulating valve provided in this implementation case.

[0047] The present application provides an electromagnetic regulating valve 1, which includes a first split body 11, a second split body 12, an electromagnetic valve assembly 13, and a fixing member 14. The electromagnetic valve assembly 13 is located between the first split body 11 and the second split body 12. The first split body 11 and the second split body 12 are detachably mounted together by the fixing member 14, so that the electromagnetic valve assembly 13, the first split body 11 and the second split body 12 are assembled together. In this embodiment, the electromagnetic regulating valve 1 adopts a split structure, which divides itself into three parts: the first split body 11, the second split body 12, and the electromagnetic valve assembly 13. The three parts are detachably connected by the fixing member 14, which is convenient for installation and disassembly, and then convenient for maintenance and parts replacement. In this embodiment, the electromagnetic regulating valve 1 weighs only 500g, which is compact and light.

[0048] Please refer to Figure 2 , Figure 2 It is a structural schematic diagram of the first split body provided in this embodiment. The first split body 11 is L-shaped. The first split body 11 is provided with an air inlet 111 and an air outlet 112. The first split body 11 is also provided with a first fixing portion 113 arranged opposite to the second split body 12. Specifically, an air inlet pipe 114 and an air outlet pipe 115 are provided on the top surface of the first split body 11 facing away from the second split body 12. The air inlet pipe 114 and the air outlet pipe 115 are respectively extended from both sides of the first body 11 in opposite directions along the horizontal direction. The air inlet 111 is opened from one end of the air inlet pipe 114 away from the air outlet pipe 115. The air outlet 112 is opened from the side of the air outlet pipe 115 away from the air inlet pipe 114. It can be understood that the air inlet 111 and the air outlet 112 are arranged on different sides of the first split body 11. The first split body 11 is also provided with a mounting portion 116 fixed to an external object. There are two mounting parts 116, which are respectively located at two different end surfaces of the air inlet 111 and the air outlet 112 facing the first split body 11. The two mounting parts 116 are cylindrical, and the axial directions of the two mounting parts 116 are perpendicular to the axial directions of the air inlet pipe 114 and the air outlet pipe 115, and are respectively arranged adjacent to the air inlet pipe 114 and the air outlet pipe 115 in a one-to-one correspondence.

[0049] Please refer to Figure 3 , Figure 3 It is a schematic diagram of the structure of the second split body provided in this embodiment. The second split body 12 is roughly plate-shaped. The second split body 12 is provided with an exhaust port 121, and the exhaust port 121 penetrates the second split body 12 along the vertical second split body 12 from the second split body 12 toward one side of the first split body 11. The second split body 12 is also provided with a second fixing portion 122 corresponding to the first fixing portion 113. The second split body 12 is connected to the first split body 11 through a fixing member 14. Specifically, the fixing member 14 is connected between the first fixing portion 113 and the second fixing portion 122, and is located on the outside of the solenoid valve assembly 13. In this embodiment, the fixing member 14 is four screws.

[0050] It can be understood that in this embodiment, the electromagnetic regulating valve 1 is provided with an air inlet 111, an air outlet 112, and an exhaust port 121. In some other embodiments, more air inlets 111, air outlets 112, and exhaust ports 121 can be provided according to the actual design of the air circuit.

[0051] Please refer to Figure 4 , Figure 4 It is a structural schematic diagram of the solenoid valve assembly provided in this embodiment. The solenoid valve assembly 13 includes a body 131 and at least two valve cores (not shown). The body 131 is provided with an active cavity (not shown) for the activity of at least two valve cores. The air inlet 111, the air outlet 112, and the exhaust port 121 are connected to the active cavity, and at least two valve cores correspond to the air inlet 111 and the exhaust port 121, respectively, to control the opening or closing of the air inlet 111 and the exhaust port 121. When the air inlet 111 is opened, the external air flow enters the solenoid regulating valve 1 and flows out from the air outlet 112. When the air inlet 111 is closed, the external air flow is prevented from entering the solenoid regulating valve 1, thereby controlling the air flow pressure of the air outlet 112. When the exhaust port 121 is opened, the air flow in the solenoid regulating valve 1 flows out from the exhaust port 121, thereby reducing the air pressure of the air outlet 112. The air inlet 111 and the air outlet 112 are arranged on opposite sides of the body 131. In this embodiment, there are two valve cores, namely a first valve core and a second valve core.

[0052] Please refer to Figure 5 , Figure 5 It is an electrical schematic diagram of the electromagnetic regulating valve provided in this embodiment. The electromagnetic valve assembly 13 integrates two two-position two-way valves 132 and 133, namely the first electromagnetic valve 132 and the second electromagnetic valve 133. The coils (not shown) of the first electromagnetic valve 132 and the second electromagnetic valve 133 are integrally arranged. The first valve core is the valve core of the first electromagnetic valve 132, and the second valve core is the valve core of the second electromagnetic valve 133. In addition, the electromagnetic valve assembly 13 also includes a first return spring 134 and a second return spring 135, and the first return spring 134 and the second return spring 135 are respectively connected to the first valve core and the second valve core. In this embodiment, when the first electromagnetic valve 132 and the second electromagnetic valve 133 are energized, under the action of electromagnetic suction, the first valve core moves in the active cavity in a direction away from the air inlet 111, and the second valve core moves in the active cavity in a direction away from the exhaust port 121. When the first solenoid valve 132 and the second solenoid valve 133 are powered off, the first valve core moves toward the air inlet 111 and the second valve core moves toward the air outlet 121 under the action of the spring force.

[0053] The first valve core corresponds to the air inlet 111, and the second valve core corresponds to the exhaust port 121. The first valve core moves to control the opening or closing of the air inlet 111, and the second valve core moves to control the opening or closing of the exhaust port 121. The air inlet 111 is normally closed, and the exhaust port 121 is normally open. In this embodiment, when the first valve core and the second valve core move in the direction away from the air inlet 111 and the exhaust port 121 respectively, the air inlet 111 is opened and the exhaust port 121 is closed. When the first valve core and the second valve core move in the direction close to the air inlet 111 and the exhaust port 121 respectively, the air inlet 111 is closed and the exhaust port 121 is opened.

[0054] The solenoid valve assembly 13 also includes a guide sleeve (not shown) wrapping the two valve cores. The two valve cores and the inner wall of the guide sleeve wrapping the two valve cores are designed with bimetallic materials. Metal-to-metal sealing, wherein the metal material can be soft magnetic stainless steel or corrosion-resistant stainless steel. The use of the above metal materials makes the solenoid valve assembly 13 have high magnetic permeability, low hysteresis loss, good corrosion resistance, and strong stability, and reduces the energy consumption of the solenoid valve assembly 13 and increases the electromagnetic suction of the solenoid valve assembly 13.

[0055] The electromagnetic regulating valve 1 also includes an air pressure sensor 15, which is arranged on the air path where the air flows through the air outlet 112, and is used to sense the air pressure value of the above-mentioned air path. The electromagnetic regulating valve 1 is connected to the main control device 7, and the main control device 7 controls the two valve cores of the electromagnetic regulating valve 1 according to the air pressure value transmitted by the air pressure sensor 15 and the preset adjustment strategy to control the opening and closing of the air inlet 111 and the exhaust port 121. Among them, the preset adjustment strategy is: when the air pressure value does not reach the preset threshold value, the electromagnetic valve assembly 13 is controlled to open the air inlet 111 and close the exhaust port 121; when the air pressure value exceeds the preset threshold value, the electromagnetic valve assembly 13 is controlled to close the air inlet 111 and open the exhaust port 121; when the air pressure value is equal to the preset threshold value, the electromagnetic valve assembly 13 is controlled to close the air inlet 111 and close the exhaust port 121. It can be understood that when the air inlet 111 is open and the exhaust port 121 is closed, the electromagnetic regulating valve 1 is in a pressurizing state, and when the air inlet 111 is closed and the exhaust port 121 is closed, the electromagnetic regulating valve 1 is in a pressure-maintaining state. When the air inlet 111 is closed and the exhaust port 121 is open, the electromagnetic regulating valve 1 is in a decompression state.

[0056] Please refer to Figure 6 , Figure 6 1 is a schematic diagram of an application product of the electromagnetic regulating valve 1 provided in this embodiment. In this embodiment, the electromagnetic regulating valve 1 is applied to a vehicle air brake system 100. It can be understood that the electromagnetic regulating valve 1 can also be applied to other products or systems that require air pressure regulation. The application of the electromagnetic regulating valve 1 to a vehicle air brake system 100 is used as an example for explanation below.

[0057] The vehicle air brake system 100 includes an air cylinder 2, a brake valve 3, a relay valve 4, and a brake device 5. The brake valve 3 can operably control the relay valve 4 to open, so that the airflow in the air cylinder 2 flows from the relay valve 4 into the brake device 5, thereby driving the brake device 5 to control the braking of the vehicle 1000. The air brake system 100 also includes an electromagnetic regulating valve 1, which is arranged between the air cylinder 2 and the relay valve 4, and is used to control the airflow in the air cylinder 2 to flow into or stop flowing into the relay valve 4 and control the air pressure flowing into the relay valve 4. In this embodiment, the electromagnetic regulating valve 1 is connected to the air cylinder 2 through the air inlet 111, and is connected to the relay valve 4 through the air outlet 112. The airflow in the air cylinder 2 flows in from the air inlet 111, flows out from the air outlet 112, then flows through the relay valve 4, and finally flows into the brake device 5. It can be understood that by adjusting the air pressure of the air outlet 112 , the air pressure flowing into the relay valve 4 can be further adjusted, and finally the brake air pressure in the brake device 5 can be further adjusted.

[0058] The vehicle air brake system 100 also includes a visual sensing system 6 and a main control device 7. The main control device 7 is connected to the visual sensing system 6 and the electromagnetic regulating valve 1 in communication. The visual sensing system 6 is used to sense the driving environment of the vehicle and send the visual sensing result to the main control device 7. The main control device 7 receives the visual sensing result and decides whether to issue a braking command to the electromagnetic regulating valve 1 according to the visual sensing result. The electromagnetic regulating valve 1 controls the movement of at least two valve cores in response to the braking command, thereby opening or closing the air inlet 111 and the exhaust port 121. The main control device 7 is also used to receive the air pressure value fed back by the air pressure sensor 15, and control the electromagnetic regulating valve 1 to adjust the air pressure value of the air outlet 112 according to the fed back air pressure value. In this embodiment, the air pressure sensor 15 built into the electromagnetic regulating valve 1 monitors the output air pressure value of the electromagnetic regulating valve 1 in real time and feeds back the air pressure value to the main control device 7 at a high speed of milliseconds. After receiving the fed back air pressure value, the main control device 7 compares the fed back air pressure value with the preset threshold value and then controls the electromagnetic regulating valve 1 to adjust the air pressure value of the air outlet 112. Specifically, taking the main control device 7 controlling the electromagnetic regulating valve 1 to increase the pressure as an example, if the feedback air pressure value is less than the preset threshold and has a large difference with the preset threshold, the main control device 7 controls the electromagnetic regulating valve 1 to quickly increase the air pressure value of the air outlet 112, so that the feedback air pressure value quickly approaches the preset threshold. If the feedback air pressure value is less than the preset threshold but close to the preset threshold, the main control device 7 controls the electromagnetic regulating valve 1 to slowly increase the air pressure value of the air outlet 112, so that the feedback air pressure value slowly approaches the preset threshold, so as to achieve the main control device 7 to accurately control the electromagnetic regulating valve 1 to output the required brake air pressure. In this embodiment, the visual sensing system 6 includes a millimeter wave radar and a camera, which simultaneously sense the driving environment of the vehicle 1000, and the visual sensing results of the two are fused and sent to the main control device 7.

[0059] The vehicle air brake system 100 also includes a one-way two-way valve 8. The one-way two-way valve 8 includes a common end 81, a first switching end 82, and a second switching end 83. The common end 81 can be optionally connected to the two switching ends 81 and 82 and can only be connected to one of them at the same time. The common end 81 is connected to the relay valve 4, the first switching end 82 is connected to the brake valve 3, and the second switching end 83 is connected to the electromagnetic regulating valve 1. When manual braking is performed, the common end 81 is connected to the first switching end 82, at which time, the braking airflow flows from the brake valve 3 to the relay valve 4 to control the vehicle 1000 to brake. When automatic air braking is performed, the common end 81 is connected to the second switching end 83. At this time, the braking airflow flows from the electromagnetic regulating valve 1 to the relay valve 4 to control the vehicle 1000 to brake.

[0060] Please refer to Figure 7 , Figure 7 It is a schematic diagram of the structure of the vehicle provided in this implementation case. The present application also provides a vehicle 1000, the vehicle 1000 includes a vehicle body 200 and a vehicle air brake system 100 arranged on the vehicle body 200, and the vehicle air brake system 100 applies the above-mentioned electromagnetic control valve 1. Please refer to the above description for the structure of the electromagnetic control valve 1, which will not be repeated here. In this embodiment, the electromagnetic control valve 1 is installed on the rear axle of the vehicle 1000. In some feasible embodiments, the position of the electromagnetic control valve 1 can be appropriately adjusted or the number of electromagnetic control valves 1 can be increased according to different vehicles. For example, an electromagnetic control valve 1 can be added to the front axle of a 6*4 air brake vehicle to achieve the best braking effect.

[0061] In this embodiment, while the vehicle 1000 is driving, on the one hand, the driver relies on his own vision to observe the surrounding environment of the vehicle 1000 and conducts risk assessment on the surrounding environment of the vehicle 1000 based on his driving experience. Different driving experiences will lead to different risk assessments of driving by the driver. The driver makes different braking actions according to the risk assessment, in other words, applies different forces to the brake pedal. At the same time, the vehicle air brake system 100 transmits corresponding instructions to the brake valve 3 through the force on the brake pedal, and the brake valve 3 can operably control the relay valve 4 to output appropriate brake air pressure to the brake device 5, thereby driving the brake device 5 to achieve different degrees of braking according to the driver's needs.

[0062] On the other hand, the visual sensing system 6 assists the driver in observing the road conditions in front of the vehicle. Specifically, the traffic conditions in front of the vehicle 1000 are sensed by the simultaneous fusion of the camera and the millimeter-wave radar. When there is a risk of collision, the visual sensing result is sent to the main control device 7. The main control device 7 receives the visual sensing result and analyzes the visual sensing result to obtain different risk levels, implements different braking strategies for different risk levels, and then sends different braking commands to the electromagnetic regulating valve 1. The electromagnetic regulating valve 1 receives the braking commands of different importance and urgency issued by the main control device 7, outputs different braking air pressures to the relay valve 4 in a high-frequency linear air pressure adjustment method, and then controls the vehicle 1000 to perform automatic air braking. In addition, the main control device 7 will also send an alarm signal to the alarm display to remind the driver.

[0063] It can be understood that during normal braking, the driver steps on the brake pedal to achieve artificial air braking. When the driver fails to brake in time or the driver's risk assessment is incorrect and the brake force is insufficient, the visual sensor system 6 and the electromagnetic control valve 1 work together to achieve automatic air braking.

[0064] The electromagnetic regulating valve 1 and the vehicle air brake system 100 and vehicle 1000 provided by the utility model are divided into three parts in the structure of the electromagnetic regulating valve 1, namely, a first split body 11, a second split body 1212, and an electromagnetic valve assembly 13. The three parts are detachably connected by a fixing member 14, which is convenient for installation and disassembly, and further convenient for maintenance and parts replacement. The electromagnetic regulating valve 1 provides an air inlet 111 and an air outlet 112 to communicate with other components in the vehicle air brake system 100. There are few air circuit access nodes. When installing the electromagnetic regulating valve 1, the original air circuit and electrical wiring can be reused to the maximum extent, and the modification of the vehicle is small, which reduces the modification cost. The visual sensing system 6 is used to sense the road conditions in front of the vehicle 1000. When there is a risk of collision, the visual sensing result is sent to the main control device 7. The main control device 7 receives the visual sensing result and analyzes the visual sensing result to obtain different risk levels, and then sends different braking instructions to the electromagnetic regulating valve 1 to implement automatic air braking. The electromagnetic regulating valve 1 receives the braking command and controls the opening and closing of the air inlet 111 and the exhaust port 121 by controlling the power on and off of the first electromagnetic valve 132 and the second electromagnetic valve 133, thereby realizing three working states of pressurization, decompression and pressure maintenance. The electromagnetic regulating valve 1 has a built-in air pressure sensor 15. During the braking process, the air pressure sensor 15 monitors the air pressure in real time and feeds back the air pressure value information to the main control device 7 at a high speed of milliseconds. The main control device 7 receives the fed-back air pressure value and controls the electromagnetic regulating valve 1 to adjust the air pressure value of the air outlet 112 according to the fed-back air pressure value, so that the electromagnetic regulating valve 1 accurately outputs the required braking air pressure. The two valve cores of the electromagnetic valve assembly 13 and the inner wall of the guide sleeve that wraps the two valve cores are designed with bimetallic materials. Metal-to-metal sealing. Among them, the metal material can be soft magnetic stainless steel or rust-resistant stainless steel. The use of the above metal material makes the electromagnetic valve assembly 13 have high magnetic permeability, low hysteresis loss, good corrosion resistance, and strong stability, and reduces the energy consumption of the electromagnetic valve assembly 13 and increases the electromagnetic suction of the electromagnetic valve assembly 13.

[0065] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0066] The above examples are only preferred embodiments of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A solenoid regulating valve, characterized in that: The electromagnetic regulating valve includes a first sub-body, a second sub-body, a solenoid valve assembly, and a fixing part. The solenoid valve assembly is located between the first sub-body and the second sub-body. The first sub-body and the second sub-body are detachably mounted together through the fixing part, so that the solenoid valve assembly, the first sub-body and the second sub-body are assembled together; the electromagnetic regulating valve is also provided with an air inlet and an air outlet. The electromagnetic valve assembly includes a main body and a valve core. The main body is provided with an active cavity for the movement of the valve core. The air inlet and the air outlet are connected with the active cavity. The valve core at least corresponds to the air inlet and is used to control the opening or closing of the air inlet. When the air inlet is opened, the external airflow enters the electromagnetic regulating valve and flows out from the air outlet. When the air inlet is closed, the external airflow is prevented from entering the electromagnetic regulating valve, thereby controlling the air pressure of the air outlet.

2. The electromagnetic regulating valve according to claim 1, characterized in that: The electromagnetic regulating valve is also provided with an exhaust port, which is connected to the active cavity. There are at least two valve cores, one of which corresponds to the exhaust port and is used to control the opening or closing of the exhaust port. When the exhaust port is opened, the airflow in the electromagnetic regulating valve is discharged from the exhaust port, thereby reducing the air pressure of the air outlet.

3. The electromagnetic regulating valve according to claim 1, characterized in that: The first sub-body is provided with a first fixing portion arranged opposite to the second sub-body, and the second sub-body is provided with a second fixing portion corresponding to the first fixing portion. The first fixing portion and the second fixing portion are connected by the fixing member, and the fixing member is located outside the solenoid valve assembly.

4. The electromagnetic regulating valve according to claim 2, characterized in that: The air inlet and the air outlet are arranged on the first split body, the air outlet is arranged on the second split body, and the air inlet and the air outlet are located on two opposite sides of the electromagnetic regulating valve.

5. The electromagnetic regulating valve according to claim 2, characterized in that: The solenoid valve assembly integrates two two-position two-way valves, and the number of the valve cores is two.

6. The electromagnetic regulating valve according to claim 2, characterized in that: The electromagnetic regulating valve further comprises an air pressure sensor, which is arranged on an air path where the air flows through the air outlet and is used to sense the air pressure value of the air outlet.

7. The electromagnetic regulating valve according to claim 6, characterized in that: The solenoid regulating valve is connected to a main control device, and the main control device controls the at least two valve cores of the solenoid regulating valve according to the air pressure value and a preset adjustment strategy to control the opening and closing of the air inlet and the exhaust port, wherein the preset adjustment strategy is: when the air pressure value does not reach a preset threshold value, the solenoid valve assembly is controlled to open the air inlet and close the exhaust port; when the air pressure value exceeds the preset threshold value, the solenoid valve assembly is controlled to close the air inlet and open the exhaust port; when the air pressure value is equal to the preset threshold value, the solenoid valve assembly is controlled to close the air inlet and close the exhaust port.

8. A vehicle air brake system, comprising an air reservoir, a brake valve, a relay valve, and a brake device, wherein the brake valve can operatively control the relay valve to open, so that the air flow in the air reservoir flows from the relay valve into the brake device, thereby driving the brake device to control the vehicle braking, characterized in that: The vehicle air brake system also includes an electromagnetic regulating valve, which is arranged between the air reservoir and the relay valve, and is used to control the air flow in the air reservoir to flow into or stop flowing into the relay valve and control the air pressure flowing into the relay valve; the electromagnetic regulating valve includes a first split body, a second split body, a solenoid valve assembly, and a fixing member, the solenoid valve assembly is located between the first split body and the second split body, the first split body and the second split body are detachably mounted together through the fixing member, so that the solenoid valve assembly, the first split body and the second split body are assembled together, and the solenoid valve assembly includes A main body and at least two valve cores, the main body is provided with an active cavity for the at least two valve cores to move; the electromagnetic regulating valve is also provided with an air inlet, an air outlet, and an exhaust port, the air inlet, the air outlet, and the exhaust port are connected with the active cavity, and the at least two valve cores correspond to the air inlet and the exhaust port respectively, so as to control the opening or closing of the air inlet and the exhaust port; when the air inlet is opened, the external air flow enters the electromagnetic regulating valve and flows out from the air outlet, and when the exhaust port is opened, the air flow in the electromagnetic regulating valve flows out from the exhaust port, thereby controlling the air flow pressure of the air outlet.

9. The vehicle air brake system according to claim 8, characterized in that: The vehicle air brake system also includes a visual sensing system and a main control device, and the main control device is communicatively connected with the visual sensing system and the electromagnetic regulating valve; the visual sensing system is used to sense the driving environment of the vehicle and send the visual sensing result to the main control device, the main control device receives the visual sensing result and decides whether to issue a braking command to the electromagnetic regulating valve according to the visual sensing result, and the electromagnetic regulating valve controls the movement of the at least two valve cores in response to the braking command, thereby opening or closing the air inlet and the exhaust port; the electromagnetic regulating valve also includes an air pressure sensor, and the main control device is also used to receive the air pressure value fed back by the air pressure sensor, and control the electromagnetic regulating valve to adjust the air pressure value of the air outlet according to the fed back air pressure value.

10. A vehicle, characterized in that: The vehicle includes a vehicle body and a vehicle air brake system as described in any one of claims 8-9 arranged on the vehicle body.

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