A new type of emergency air source auxiliary braking device

Abstract

The application provides a novel emergency air source auxiliary braking device, comprising a box body which is portable; a collection controller is installed in the box body and is configured to be connected with a vehicle terminal and receive relevant data of the vehicle; an air compressor is installed in the box body, and an output end of the air compressor is connected with a service brake air bottle and a parking brake air bottle of the vehicle through a gas supplement three-way valve; the gas supplement three-way valve and the air compressor are electrically connected with the collection controller and are configured to receive a control signal output by the collection controller; a brake three-way valve is installed in the box body and is electrically connected with the collection controller and is configured to receive the control signal output by the collection controller and trigger a foot brake valve. According to the technical scheme provided by the embodiment of the application, the collection controller and the air compressor are integrated in the box body, so that the vehicle can be rapidly supplied with air, the relevant data of the vehicle can be collected, and continuous and stable air supply can be realized; and the device can be used for rescue and self-rescue.

Description

Technical Field

[0001] This application relates to the field of vehicle auxiliary equipment technology, specifically to a novel emergency air source auxiliary braking device. Background Technology

[0002] As special-purpose vehicles, field vehicles often travel on complex road conditions and face harsh environments. Their air system is susceptible to factors such as drastic temperature changes (thermal expansion and contraction) and aging and wear of seals, which can lead to air leakage. This problem directly causes slow braking response, extended braking distance, and in extreme cases, brake failure, seriously threatening the driving safety of field vehicles and the efficiency of combat mission execution.

[0003] When a field vehicle malfunctions and cannot start in a field environment, insufficient air pressure in the parking brake cylinder can make it difficult to release the handbrake quickly. During towing operations, failure of the service brake not only significantly increases the risk of secondary accidents, but also requires a large amount of manpower to manually operate multiple parking brake cylinders or adjust the brake clearance, seriously delaying battlefield repair time and failing to meet the core requirements of rapid towing and ensuring the combat effectiveness of equipment in wartime. Therefore, the above problems urgently need to be solved. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a new type of emergency air source auxiliary braking device.

[0005] This application provides a novel emergency air-source auxiliary braking device, including... The container is portable and designed for carrying in a vehicle. A data acquisition controller is installed inside the housing and configured to connect to the vehicle terminal and receive relevant data from the vehicle. An air compressor is installed inside the housing, and its output end is connected to the vehicle's service brake cylinder and parking brake cylinder respectively through a three-way air supply valve. The air replenishment three-way valve and the air compressor are electrically connected to the data acquisition controller and are configured to receive control signals output by the data acquisition controller. A three-way brake valve is installed inside the housing and electrically connected to the data acquisition controller. It is configured to receive control signals output by the data acquisition controller and trigger the foot brake valve.

[0006] Furthermore, The input end of the foot brake valve is connected to the service brake cylinder, the output end is connected to the braking device, and the trigger end is connected to the one-way valve and the foot pedal assembly respectively through a three-way valve. The input end of the brake three-way valve is connected to the service brake air cylinder, and any one of its output ends is connected to the one-way valve to trigger the foot brake valve.

[0007] Furthermore, The housing is also equipped with a service brake switch; The service brake switch is electrically connected to the data acquisition controller and is configured to output an auxiliary braking signal to the data acquisition controller; The acquisition controller is configured to receive the auxiliary braking signal and control the three-way brake valve to connect the service brake cylinder and the foot brake valve.

[0008] Furthermore, The data acquisition controller can also acquire foot brake signals through the terminal. Braking can be achieved upon receiving any braking signal; When two braking signals are received simultaneously, the brake three-way valve is controlled to disconnect the control terminal of the service brake cylinder from the foot brake valve.

[0009] Furthermore, The data acquisition controller can collect air pressure data of the parking brake cylinder through the terminal, and is configured to control the start and stop of the air compressor and the switching of the air replenishment three-way valve according to the air pressure data; When the air pressure in the parking brake cylinder is lower than the set value, air is replenished. When the air pressure in the parking brake cylinder exceeds the set value, air replenishment stops.

[0010] Furthermore, The data acquisition controller can collect air pressure data of the vehicle brake cylinder through the terminal, and is configured to control the start and stop of the air compressor and the switching of the air replenishment three-way valve according to the air pressure data; When the air pressure in the service brake cylinder is lower than the set value, air is replenished. When the air pressure in the service brake cylinder exceeds the set value, air replenishment is stopped.

[0011] Furthermore, The data acquisition controller can collect vehicle speed data through the terminal to determine the vehicle's operating status, which in turn serves as a condition for automatic air replenishment.

[0012] Furthermore, The box is also equipped with a drying tank; The drying tank is connected between the air compressor and the air replenishment three-way valve and is used to dry the compressed air.

[0013] Furthermore, The air compressor has a rated voltage of 24V and is powered by the vehicle battery.

[0014] The advantages and positive effects of this application are: This technical solution integrates a data acquisition controller and an air compressor within the housing, enabling rapid air supply to the vehicle and continuous, stable air supply by collecting relevant vehicle data. This allows it to be used not only for rescue operations but also for self-rescue. Furthermore, the housing also integrates a three-way brake valve, which, in conjunction with the data acquisition controller, can directly control the vehicle's braking while in motion. This can be applied to brake pedal malfunctions and to assist passengers in driving. Attached Figure Description

[0015] Figure 1 A schematic diagram of the novel emergency air source auxiliary braking device provided in the embodiments of this application. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this application, the application will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory, and should not be used to limit the scope of protection of this application.

[0017] Please refer to Figure 1 This embodiment provides a novel emergency air-source auxiliary braking device, including a housing, which is portable and for carrying in a vehicle; a data acquisition controller installed in the housing, configured to connect to a vehicle terminal and receive relevant vehicle data; an air compressor installed in the housing, with its output end connected to the vehicle's service brake cylinder and parking brake cylinder respectively via a three-way air supply valve; the three-way air supply valve and the air compressor are electrically connected to the data acquisition controller and configured to receive control signals output by the data acquisition controller; and a brake three-way valve installed in the housing and electrically connected to the data acquisition controller, configured to receive control signals output by the data acquisition controller and trigger the foot brake valve.

[0018] In this embodiment, the box adopts a portable design, with an overall hard aluminum alloy shell, which has impact resistance and is easy to carry in vehicles and deploy quickly in the field; the box integrates various functional modules, with a compact structure, which is convenient for single-person operation and handling.

[0019] In this embodiment, the data acquisition controller is fixedly installed inside the housing and is connected to the vehicle terminal via a cable. It can receive relevant operating data from the vehicle. The data acquisition controller adopts a low-power design and operates at 24V. It can be directly powered by the vehicle battery to ensure normal operation when the vehicle cannot start.

[0020] In this embodiment, the air compressor is also installed inside the housing and uses a DC inverter brushless motor, which features low noise, high efficiency and long life; its output end is connected to the air replenishment three-way valve through a pipeline. The air replenishment three-way valve has multiple output ports, which can be connected to the vehicle's service brake air cylinder and parking brake air cylinder respectively; the air compressor can be started or stopped under the control of the data acquisition controller to realize rapid air replenishment to the brake cylinder.

[0021] In this embodiment, the air replenishment three-way valve and the air compressor are both electrically connected to the data acquisition controller and receive control signals from the data acquisition controller, thereby automatically or manually switching the air replenishment path according to the vehicle status to achieve directional air filling of different gas cylinders.

[0022] In this embodiment, the brake three-way valve is installed inside the housing and electrically connected to the data acquisition controller; the data acquisition controller can switch the connection path of the brake three-way valve according to the received braking command, thereby triggering the vehicle's foot brake valve to achieve auxiliary braking function.

[0023] In this embodiment, all air and electrical interfaces adopt a quick-connect design, which facilitates quick connection and disconnection in emergency situations; it is suitable for harsh working conditions such as field operations; by coordinating the actions of the air compressor and each valve body through the data acquisition controller, it can provide an emergency air source when the vehicle's air pressure is insufficient, and can also achieve auxiliary braking when necessary, thereby improving the vehicle's emergency handling capability and driving safety in fault conditions.

[0024] In a preferred embodiment, the input end of the foot brake valve is connected to the service brake cylinder, the output end is connected to the braking device, and the trigger end is connected to the one-way valve and the foot pedal assembly respectively via a three-way valve; the input end of the brake three-way valve is connected to the service brake cylinder, and any one of its output ends is connected to the one-way valve, for triggering the foot brake valve.

[0025] In this embodiment, the foot brake valve is the vehicle's original main brake control valve. Its input end is connected to the vehicle's service brake air cylinder through a pipeline to obtain the air source required for braking; its output end is connected to the vehicle's braking device (such as the front and rear axle brake chambers) to drive the braking action; the trigger end (i.e., control port) of the foot brake valve is divided into two control air paths through a three-way connector: one path is connected to the foot pedal assembly in the driver's cab and is directly controlled by the driver's foot pedal action; the other path is connected to a one-way valve.

[0026] In this embodiment, the brake three-way valve is a newly added auxiliary brake control valve in this device, and its input end is also connected to the service brake air cylinder. One output end of the brake three-way valve is connected to a one-way valve connected to the trigger end of the foot brake valve through a pipeline. When the device needs to implement auxiliary braking, the acquisition controller sends a control signal to the brake three-way valve to make it conduct. At this time, the compressed air from the bicycle brake air cylinder is output through the brake three-way valve and injected into the trigger end of the foot brake valve through the one-way valve. The control air pressure in this circuit has the same effect as the air pressure generated by the foot pedal, which can equivalently "trigger" the foot brake valve to open it, so that the air pressure of the service brake air cylinder can flow to the braking device through the foot brake valve to realize wheel braking.

[0027] In this embodiment, the function of the one-way valve is to ensure the one-way flow of the control airflow, prevent the air pressure from the foot pedal assembly from flowing back into the brake three-way valve pipeline, thereby isolating the two control paths of normal driving braking and emergency auxiliary braking to avoid mutual interference.

[0028] In a preferred embodiment, the housing is further provided with a service brake switch; the service brake switch is electrically connected to the data acquisition controller and is configured to output an auxiliary braking signal to the data acquisition controller; the data acquisition controller is configured to receive the auxiliary braking signal and control the brake three-way valve to connect the control terminal of the service brake cylinder and the foot brake valve.

[0029] In this embodiment, the vehicle brake switch can be installed in an easily accessible location on the outer surface of the enclosure, such as the top or side of the enclosure, and is equipped with a corresponding protective cover or conspicuous marking to prevent accidental activation and ensure quick operation in emergency situations; the switch adopts a waterproof and dustproof design to adapt to harsh environments such as field operations; the switch is electrically connected to the acquisition controller inside the enclosure via a cable to form a signal input channel.

[0030] When the operator (such as the train commander or repair personnel) determines that auxiliary braking is required, this service brake switch can be manually triggered; after the switch is triggered, a high-level or specifically coded auxiliary braking request signal is immediately output to the acquisition controller.

[0031] In a preferred embodiment, the acquisition controller can also acquire foot brake signals through the terminal. When any brake signal is received, braking can be achieved. When two brake signals are received simultaneously, the controller controls the brake three-way valve to disconnect the control terminal of the service brake cylinder from the foot brake valve.

[0032] In this embodiment, the acquisition controller has the ability to receive and process multiple braking command signals, and achieves precise control of the three-way brake valve through logical judgment to ensure the reliability and safety of the braking system.

[0033] Specifically, the acquisition controller, through its connection with the vehicle terminal, can continuously acquire and receive "foot brake signals" from the vehicle's original braking system. These signals typically originate from sensors installed in the brake pedal assembly or related air and electrical circuits, and can reflect in real time whether the driver is performing a regular foot brake operation.

[0034] In this embodiment, the present application constitutes a dual-path braking signal input system: the first path is the original vehicle foot brake signal collected by the terminal, representing the driver's direct braking intention; the second path is the auxiliary braking signal generated by the service brake switch on the housing, representing the operator's emergency or auxiliary braking intention.

[0035] The acquisition controller is internally equipped with corresponding signal processing and logic judgment modules; its control logic is configured as follows: "OR" logic triggers braking: When the acquisition controller detects that either of the two braking signals is valid, the controller determines that there is a braking demand; when the foot brake signal is acquired, the brake three-way valve remains stationary; when the auxiliary braking signal is acquired, the brake three-way valve switches its state to achieve auxiliary braking.

[0036] "AND" logic safety interlock: When the data acquisition controller simultaneously detects that both the original vehicle foot brake signal and the auxiliary brake signal are valid (i.e., the driver and operator issue braking commands almost at the same time), to prevent potential air pressure conflicts or interference between the two control air sources at the foot brake valve control end and to ensure a clear system response, the controller will execute a priority safety logic. In this case, the controller will output a control signal, commanding the brake three-way valve to disconnect the passage between its input end and the foot brake valve control end; this means that the auxiliary braking air path provided by the brake three-way valve of this device is actively cut off; at this time, the vehicle's braking control is completely returned to the original vehicle braking system, and the driver controls the foot brake valve only through the air pressure signal generated by pressing the pedal, thereby avoiding the system instability risks that may be caused by dual control.

[0037] In a preferred embodiment, the data acquisition controller can collect air pressure data of the parking brake cylinder through the terminal, and is configured to control the start and stop of the air compressor and the switching of the air replenishment three-way valve according to the air pressure data; when the air pressure of the parking brake cylinder is lower than the set value, air replenishment is performed; when the air pressure of the parking brake cylinder is higher than the set value, air replenishment is stopped.

[0038] In this embodiment, the data acquisition controller has the function of automatically monitoring and intelligently replenishing the pressure of the vehicle parking brake cylinder to ensure that the parking brake system always has reliable working pressure.

[0039] Specifically, the acquisition controller establishes a communication connection with the vehicle terminal via a cable, and acquires the air pressure data in the vehicle's parking brake cylinder in real time or periodically through the terminal. To achieve accurate measurement, a pressure sensor can be installed at the corresponding interface of the parking brake cylinder. The sensor converts the physical quantity of air pressure in the cylinder into an electrical signal, which is transmitted to the vehicle terminal via the vehicle bus or a dedicated line and then acquired by the acquisition controller.

[0040] In this embodiment, the data acquisition controller has preset pressure control thresholds, including a low-pressure start threshold (e.g., 0.55 MPa) and a high-pressure stop threshold (e.g., 0.68 MPa); the data acquisition controller will continuously compare the real-time air pressure data received from the terminal with these preset thresholds.

[0041] Its control logic and workflow are as follows: Monitoring and Judgment: The data acquisition controller continuously monitors the air pressure of the parking brake cylinder; when the detected air pressure value is lower than the low pressure start threshold, the controller judges that the cylinder pressure is insufficient and needs to perform an air replenishment operation.

[0042] Perform gas replenishment: Once gas replenishment is determined, the data acquisition controller will simultaneously execute two control outputs: First, a switching command is sent to the three-way air replenishment valve to control the movement of its internal valve core, so that its output path is switched to the port connected to the parking brake air cylinder, thus establishing a dedicated air replenishment path from the air compressor to the parking brake air cylinder.

[0043] At the same time, a start command is sent to the air compressor to drive it to start working; the compressed air generated by the air compressor flows through the air replenishment three-way valve that has been switched to the correct path, and is finally delivered to the parking brake air cylinder to start filling and pressurizing the air cylinder.

[0044] Stop air replenishment: During the air replenishment process, the data acquisition controller continuously monitors the air pressure changes; when the air pressure of the parking brake cylinder rises above the high pressure stop threshold, the controller determines that the cylinder pressure has returned to a safe and sufficient range; at this time, the data acquisition controller will send a stop command to the air compressor to stop its operation.

[0045] In a preferred embodiment, the data acquisition controller can acquire air pressure data of the service brake air cylinder through the terminal, and is configured to control the start and stop of the air compressor and the switching of the air replenishment three-way valve according to the air pressure data; when the air pressure of the service brake air cylinder is lower than the set value, air replenishment is performed; when the air pressure of the service brake air cylinder is higher than the set value, air replenishment is stopped.

[0046] In this embodiment, the data acquisition controller has the function of real-time monitoring and dynamic intelligent air replenishment of the vehicle's service brake cylinder pressure to ensure that the service brake system always maintains sufficient available pressure during vehicle operation and to ensure braking performance.

[0047] Specifically, the acquisition controller acquires the air pressure data in the vehicle's service brake cylinder in real time through its stable communication link with the vehicle terminal. This data is usually provided by a dedicated pressure sensor installed on the service brake cylinder pipeline. The sensor converts the air pressure signal into an electrical signal and transmits it to the vehicle bus system, where it is finally read by the acquisition controller.

[0048] In this embodiment, the acquisition controller is internally configured with pressure control parameters specifically for vehicle braking, including a low-pressure start threshold and a high-pressure stop threshold for vehicle braking; these thresholds are the core judgment criteria for triggering the automatic air replenishment logic.

[0049] Its closed-loop automatic control process is as follows: Real-time monitoring and low-pressure judgment: When the vehicle is in operation, the data acquisition controller continuously monitors the real-time air pressure of the service brake cylinder; once the air pressure value is detected to drop below the preset low-pressure start threshold of the service brake, the controller immediately determines that the pressure of the service brake cylinder is insufficient and there is a risk of reduced braking performance, and then triggers the automatic air replenishment program.

[0050] Initiate and execute gas replenishment: After determining that gas replenishment is needed, the data acquisition controller synchronously issues two sets of coordinated control commands: Firstly, a control signal is sent to the three-way air replenishment valve to drive its internal valve core to precisely switch the compressed air output path to the interface connected to the vehicle's brake cylinder; this operation establishes a directional air filling path from the air compressor of this equipment to the vehicle's brake cylinder.

[0051] Secondly, a start command is sent to the air compressor; the air compressor then starts to operate and generates compressed air; the generated compressed air is directly pumped into the service brake air cylinder through the switched passage of the air replenishment three-way valve to begin rapid pressurization.

[0052] Termination of air replenishment operation: While the air replenishment operation is in progress, the data acquisition controller does not stop monitoring the air pressure. When it is detected that the air pressure in the service brake cylinder has risen to exceed the preset high pressure stop threshold of the service brake due to continuous inflation, the controller determines that the pressure has returned to a safe and sufficient level. At this time, the data acquisition controller once again synchronously issues a control command: ordering the air compressor to stop working and cut off the air supply.

[0053] In a preferred embodiment, the data acquisition controller can collect vehicle speed data through the terminal to determine the vehicle's operating status, which in turn serves as a condition for automatic air replenishment.

[0054] In this embodiment, the acquisition controller has the ability to acquire and parse real-time vehicle speed information, and uses this as one of the key judgment conditions for executing the intelligent automatic air replenishment function, thereby realizing adaptive matching between the air replenishment logic and the actual operating state of the vehicle, and improving the safety and economy of the system.

[0055] Specifically, the acquisition controller can receive vehicle speed signals in real time through its communication interface with the vehicle terminal. These speed signals typically originate from the vehicle's original speed sensors (such as speed sensors installed on the gearbox output shaft or wheels), are processed by the vehicle's instrument system or bus network, and then provided to the acquisition controller through the terminal.

[0056] In this embodiment, When the vehicle is in motion: the automatic air replenishment program for the service brake cylinder will be triggered immediately only when the data acquisition controller determines that the vehicle speed is higher than the threshold and the pressure of the service brake cylinder is lower than its low-pressure start threshold. This ensures that the system can provide timely air pressure compensation at critical moments when the vehicle is moving and the braking system may frequently operate, causing the air pressure to drop.

[0057] When the vehicle is stationary / quasi-stationary: When the vehicle speed is determined to be below the threshold, the data acquisition controller will disable or suspend the automatic air replenishment function for the service brake cylinder. This is because when the vehicle is stationary, the service brake theoretically does not consume air. If the air pressure is too low at this time, it usually indicates a fault such as a leak. In this state, not automatically replenishing air can prevent the air compressor from frequently starting and stopping due to continuous leakage and energy waste. On the other hand, it also provides the operator with a window to check for faults. However, it should be noted that the (manual or automatic) air replenishment function for the parking brake cylinder is usually not affected in this state to ensure that the handbrake can be released.

[0058] In a preferred embodiment, the housing is further provided with a drying tank; the drying tank is connected between the air compressor and the air replenishment three-way valve, and is used to dry the compressed air.

[0059] In this embodiment, a drying tank is also integrated into the portable housing. This drying tank, as a compressed air processing unit, is a key component for ensuring the quality of the output air source.

[0060] Specifically, the dryer is installed in series in the output air circuit of the air compressor. The specific connection relationship is as follows: the outlet of the air compressor is first connected to the air inlet of the dryer through a high-pressure pipeline; the outlet of the dryer is then connected to the air inlet of the replenishing three-way valve through a subsequent pipeline; thus, all the compressed air generated by the air compressor must be processed by the dryer before flowing through the replenishing three-way valve and entering the vehicle brake cylinder.

[0061] In a preferred embodiment, the air compressor has a rated voltage of 24V and is powered by a vehicle battery.

[0062] In this embodiment, the air compressor and its power supply system are specially designed to adapt to common vehicle electrical environments, ensuring that the equipment can still independently and reliably obtain the power required for operation even in extreme failure situations where the vehicle itself cannot start.

[0063] Specifically, the air compressor integrated into the housing is set to a rated operating voltage of 24V DC; this voltage value is compatible with the onboard battery voltage standards of most medium and heavy military vehicles, commercial trucks, and special field vehicles.

[0064] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A novel emergency air-assisted braking device, characterized in that, include The container is portable and designed for carrying in a vehicle. A data acquisition controller is installed inside the housing and configured to connect to the vehicle terminal and receive relevant data from the vehicle. An air compressor is installed inside the housing, and its output end is connected to the vehicle's service brake cylinder and parking brake cylinder respectively through a three-way air supply valve. The air replenishment three-way valve and the air compressor are electrically connected to the data acquisition controller and are configured to receive control signals output by the data acquisition controller. A three-way brake valve is installed inside the housing and electrically connected to the data acquisition controller. It is configured to receive control signals output by the data acquisition controller and trigger the foot brake valve.

2. The novel emergency air source-assisted braking device according to claim 1, characterized in that, The input end of the foot brake valve is connected to the service brake cylinder, the output end is connected to the braking device, and the trigger end is connected to the one-way valve and the foot pedal assembly respectively through a three-way valve. The input end of the brake three-way valve is connected to the service brake air cylinder, and any one of its output ends is connected to the one-way valve to trigger the foot brake valve.

3. The novel emergency air source-assisted braking device according to claim 2, characterized in that, The housing is also equipped with a service brake switch; The service brake switch is electrically connected to the data acquisition controller and is configured to output an auxiliary braking signal to the data acquisition controller; The acquisition controller is configured to receive the auxiliary braking signal and control the three-way brake valve to connect the service brake cylinder and the foot brake valve.

4. The novel emergency air source-assisted braking device according to claim 3, characterized in that, The data acquisition controller can also acquire foot brake signals through the terminal. Braking can be achieved upon receiving any braking signal; When two braking signals are received simultaneously, the brake three-way valve is controlled to disconnect the control terminal of the service brake cylinder from the foot brake valve.

5. The novel emergency air source-assisted braking device according to claim 1, characterized in that, The data acquisition controller can collect air pressure data of the parking brake cylinder through the terminal, and is configured to control the start and stop of the air compressor and the switching of the air replenishment three-way valve according to the air pressure data; When the air pressure in the parking brake cylinder is lower than the set value, air is replenished. When the air pressure in the parking brake cylinder exceeds the set value, air replenishment stops.

6. The novel emergency air source-assisted braking device according to claim 5, characterized in that, The data acquisition controller can collect air pressure data of the vehicle brake cylinder through the terminal, and is configured to control the start and stop of the air compressor and the switching of the air replenishment three-way valve according to the air pressure data; When the air pressure in the service brake cylinder is lower than the set value, air is replenished. When the air pressure in the service brake cylinder exceeds the set value, air replenishment is stopped.

7. The novel emergency air source-assisted braking device according to claim 6, characterized in that, The data acquisition controller can collect vehicle speed data through the terminal to determine the vehicle's operating status, which in turn serves as a condition for automatic air replenishment.

8. The novel emergency air source-assisted braking device according to claim 1, characterized in that, The box is also equipped with a drying tank; The drying tank is connected between the air compressor and the air replenishment three-way valve and is used to dry the compressed air.

9. The novel emergency air source-assisted braking device according to claim 1, characterized in that, The air compressor has a rated voltage of 24V and is powered by the vehicle battery.

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