Safety reinforcement system and safety reinforcement method during emergency braking

Abstract

This invention discloses a safety enhancement system and method for emergency braking, relating to the technical field of vehicle emergency braking. The method includes an airbag suspension assembly, a tire assembly, a dryer, and a controller. The controller is electrically connected to the airbag suspension assembly, tire assembly, and dryer, and is configured to: acquire the vehicle's brake pedal signal in real time; determine whether the vehicle meets preset emergency braking conditions based on the brake pedal signal; if the vehicle meets the preset emergency braking conditions, control the airbag suspension of the airbag suspension assembly to exhaust air, control the tire assembly to exhaust air, and control the dryer to activate the air compressor to pump air into the first air reservoir. This invention acquires the brake pedal signal in real time and, when it determines that emergency braking conditions are met, controls the exhaust of air from the airbag suspension assembly and the tire assembly, lowering the vehicle's center of gravity, increasing traction, increasing engine load to consume kinetic energy, and improving vehicle stability and safety.

Description

Technical Field

[0001] This invention relates to the technical field of vehicle emergency braking, and particularly to a safety enhancement system and method for emergency braking. Background Technology

[0002] In the existing technology, the braking safety of commercial vehicles, especially heavy vehicles equipped with air suspension, mainly relies on traditional air pressure braking systems and engine-assisted braking systems.

[0003] When braking is required in an emergency, the driver activates the air braking system by pressing the brake pedal. The vehicle then relies on the friction between the brake pads and the brake drum, as well as the engine's drag force, to decelerate. However, during emergency braking, especially under overload conditions, the vehicle's center of gravity is high, the tire contact area with the ground is small, and the traction is low, which can easily lead to a decrease in stability and safety. Summary of the Invention

[0004] This invention provides a safety enhancement system and method for emergency braking to address the technical problem of poor vehicle stability and safety during emergency braking in related technologies.

[0005] Firstly, a safety enhancement system for emergency braking is provided, comprising: The controller is electrically connected to the airbag suspension assembly, tire assembly, and dryer, and the controller is configured to: Real-time acquisition of vehicle brake pedal signals; The system determines whether the vehicle meets the preset emergency braking conditions based on the brake pedal signal. If the vehicle meets the preset emergency braking conditions, the airbag suspension assembly is controlled to vent air, the tire assembly is controlled to vent tires, and the dryer is controlled to operate so that the air compressor pumps air into the first air reservoir.

[0006] In some embodiments, the airbag suspension assembly includes: Second gas storage tank; The first valve has its inlet and outlet connected to the second air reservoir and the airbag suspension, respectively, and is also electrically connected to the controller.

[0007] In some embodiments, the first valve is an electronically controlled air suspension system valve.

[0008] In some embodiments, the tire assembly further includes: Third gas storage tank; The second valve has an air inlet that is connected to the third air storage tank, and the second valve is also electrically connected to the controller. The air pressure regulator has an air inlet connected to the air outlet of the second valve, an air outlet connected to the tire, and is also electrically connected to the controller.

[0009] Secondly, a safety enhancement method for emergency braking is provided, applied to the aforementioned safety enhancement system for emergency braking, the safety enhancement method comprising: Real-time acquisition of vehicle brake pedal signals; The system determines whether the vehicle meets the preset emergency braking conditions based on the brake pedal signal. If the vehicle meets the preset emergency braking conditions, the system controls the airbag suspension assembly to exhaust air, controls the tire assembly to exhaust tires, and controls the dryer to activate the air compressor to pump air into the first air reservoir.

[0010] In some embodiments, determining whether the vehicle meets preset emergency braking conditions based on the brake pedal signal includes: If the brake pedal is pressed from its initial position to its maximum travel and the actuation time does not exceed a preset time, then the preset emergency braking conditions are met; wherein, the average brake pedal increase rate within the preset time period is used as a reference increase rate. If the increase in brake pedal travel during any given period is not less than half of the total brake pedal travel, and the rate of increase in brake pedal travel during that period is not less than the reference rate of increase, then the preset emergency braking conditions are met.

[0011] In some embodiments, the preset time ranges from 0.18 to 0.22 seconds.

[0012] In some embodiments, after the steps of controlling the airbag suspension assembly to vent air, controlling the tire assembly to vent tires, and controlling the dryer to operate so that the air compressor pumps air into the first air reservoir, the method further includes: If the brake pedal opening is detected to retract to the preset opening, or the vehicle's lateral acceleration reaches the preset acceleration, or the vehicle's yaw rate reaches the preset yaw rate, then control of the airbag suspension assembly exhaust, tire assembly exhaust, and dryer operation will be stopped.

[0013] In some embodiments, the preset opening is 10%-15% of the total travel of the brake pedal.

[0014] In some embodiments, prior to controlling the airbag suspension exhaust of the airbag suspension assembly and controlling the tire exhaust of the tire assembly, the method further includes: Determine whether the initial air pressure values ​​inside the airbags of the airbag suspension assembly and the tires of the tire assembly are within their respective preset air pressure ranges. If not, do not perform the venting action.

[0015] The beneficial effects of the technical solution provided by this invention include: This invention provides a safety enhancement system and method for emergency braking. The safety enhancement system includes an airbag suspension assembly, a tire assembly, a dryer, and a controller. The controller is electrically connected to the airbag suspension assembly, tire assembly, and dryer, and is configured to: acquire the vehicle's brake pedal signal in real time; determine whether the vehicle meets preset emergency braking conditions based on the brake pedal signal; if the vehicle meets the preset emergency braking conditions, control the airbag suspension of the airbag suspension assembly to exhaust air, control the tire assembly to exhaust air, and control the dryer to activate the air compressor to pump air into a first air reservoir. This invention acquires the brake pedal signal in real time and, upon determining that emergency braking conditions are met, controls the exhaust of air from the airbag suspension assembly and tire assembly, lowering the vehicle's center of gravity, increasing traction, increasing engine load to consume kinetic energy, and improving vehicle stability and safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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 creative effort.

[0017] Figure 1 A schematic diagram showing the connection relationship between the airbag suspension assembly, tire assembly, controller, and dryer of a safety enhancement system during emergency braking provided in an embodiment of the present invention. Figure 2 A schematic diagram of vehicle stability coefficient parameters for a safety enhancement system during emergency braking provided in an embodiment of the present invention; Figure 3 A schematic diagram of an airbag suspension assembly structure for an emergency braking safety enhancement system provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the tire assembly structure of a safety enhancement system during emergency braking provided in an embodiment of the present invention; Figure 5 A schematic diagram showing the connection relationship between the dryer, controller, air compressor, and first air tank of a safety enhancement system for emergency braking provided in an embodiment of the present invention; Figure 6 A flowchart illustrating a safety enhancement method during emergency braking provided in an embodiment of the present invention; 1. Airbag suspension assembly; 11. Second air reservoir; 12. First valve; 13. Airbag suspension; 2. Tire assembly; 21. Tire; 22. Third air reservoir; 23. Second valve; 24. Air pressure regulator; 3. Dryer; 4. Controller; 5. Air compressor; 6. First gas storage tank. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a safety enhancement system and method for emergency braking, which can solve the technical problem of poor vehicle stability and safety during emergency braking in related technologies.

[0020] See Figure 1 and Figure 5 As shown in the figure, an embodiment of the present invention provides a safety enhancement system for emergency braking. The system includes an airbag suspension assembly 1, a tire assembly 2, a dryer 3, and a controller 4. The controller 4 is electrically connected to the airbag suspension assembly 1, the tire assembly 2, and the dryer 3, and is configured to: acquire the vehicle's brake pedal signal in real time; determine whether the vehicle meets preset emergency braking conditions based on the brake pedal signal; if the vehicle meets the preset emergency braking conditions, control the airbag suspension of the airbag suspension assembly 1 to exhaust air, control the tire 21 of the tire assembly 2 to exhaust air, and control the dryer 3 to operate so that the air compressor 5 pumps air into the first air reservoir 6. In this embodiment of the invention, the controller 4 acquires the brake pedal signal in real time and, when it determines that the emergency braking conditions are met, controls the airbag suspension assembly 1 to exhaust air to lower the vehicle's center of gravity, thus solving the problem of decreased stability caused by a high center of gravity during emergency braking. At the same time, it controls the tire 21 in the tire assembly 2 to exhaust air to increase the contact area between the tire and the ground, thereby improving adhesion and solving the problem of insufficient braking force caused by a small contact area. In addition, it controls the dryer 3 to operate so that the air compressor 5 pumps air into the first air reservoir 6 to increase the engine load and consume kinetic energy, further improving the stability and safety of the vehicle during emergency braking and shortening the braking distance.

[0021] This invention provides a safety enhancement system for emergency braking. The system includes an airbag suspension assembly, a tire assembly, a dryer, and a controller. The controller is electrically connected to the airbag suspension assembly, tire assembly, and dryer, and is configured to: acquire the vehicle's brake pedal signal in real time; determine whether the vehicle meets preset emergency braking conditions based on the brake pedal signal; if the vehicle meets the preset emergency braking conditions, control the airbag suspension of the airbag suspension assembly to exhaust air, control the tire assembly to exhaust air, and control the dryer to activate the air compressor to pump air into a first air reservoir. This invention, by acquiring the brake pedal signal in real time and determining that emergency braking conditions are met, controls the airbag suspension assembly to exhaust air to lower the vehicle's center of gravity, solving the problem of decreased stability due to a high center of gravity during emergency braking. Simultaneously, it controls the tire assembly to exhaust air to increase the tire's contact area with the ground, improving adhesion and solving the problem of insufficient braking force due to a small contact area. Furthermore, it controls the dryer to activate the air compressor to pump air into the first air reservoir, increasing engine load and consuming kinetic energy, further improving the stability and safety of the vehicle during emergency braking and shortening the braking distance.

[0022] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 2 and Figure 3 As shown, the airbag suspension assembly 1 includes a second air reservoir 11, a first valve 12, and an airbag suspension 13. The air inlet and outlet of the first valve 12 are respectively connected to the second air reservoir 11 and the airbag suspension 13. The first valve 12 is also electrically connected to the controller 4. In this embodiment of the invention, the controller 4 monitors the air pressure of the airbag suspension 13. If the conditions are met during emergency braking, the controller controls the action of the first valve 12, and the exhaust airflow direction is from the airbag suspension 13 to the exhaust port of the first valve 12, so as to quickly reduce the vehicle height and center of gravity during emergency braking, improve the vehicle's anti-rollover ability, and enhance braking stability.

[0023] As an optional implementation, in one embodiment of the invention, the first valve 12 is an electronically controlled air suspension system valve, i.e., ECAS. This embodiment of the invention uses an electronically controlled air suspension system valve as the first valve 12, which enables high-precision electrical signal interaction with the controller 4, ensuring a rapid response to control commands during emergency braking, accurately controlling the exhaust rate and pressure value of the airbag suspension 13, and guaranteeing the timeliness and reliability of vehicle body posture adjustment.

[0024] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 4As shown, the tire assembly 2 further includes a third air reservoir 22, a second valve 23, and a pressure regulator 24. The air inlet of the second valve 23 is connected to the third air reservoir 22, and the second valve 23 is also electrically connected to the controller 4. The air inlet of the pressure regulator 24 is connected to the air outlet of the second valve 23, and the air outlet of the pressure regulator 24 is connected to the tire 21. The pressure regulator 24 is also electrically connected to the controller 4. In this embodiment of the invention, the controller 4 controls the second valve 23 and the pressure regulator 24, which can flexibly adjust the air pressure in the tire 21. During emergency braking, the pressure regulator 24 is controlled to allow the air in the tire 21 to be discharged through the exhaust port of the pressure regulator 24, appropriately reducing the tire pressure to increase the contact area between the tire 21 and the ground, improve adhesion, and shorten the braking distance.

[0025] This invention also provides a safety enhancement method during emergency braking, see [link to relevant documentation]. Figure 6 As shown, the process includes step S100: acquiring the vehicle's brake pedal signal in real time; step S200: determining whether the vehicle meets preset emergency braking conditions based on the brake pedal signal; and step S300: if the vehicle meets the preset emergency braking conditions, controlling the airbag suspension assembly to vent air, controlling the tire assembly to vent tires, and controlling the dryer to activate the air compressor to pump air into the first air reservoir. Specifically, during emergency braking, the controller actively reduces the air pressure within the airbag suspension, lowering the vehicle's center of gravity height H. According to the expression for the stability coefficient η=L / (2H), the smaller H is, the larger the stability coefficient η is, and the stronger the vehicle's anti-roll capability, thereby improving the vehicle's stability during emergency braking. In this embodiment, the controller 4 automatically executes the above steps without additional driver intervention. It can lower the vehicle's center of gravity, increase the tire contact area, and utilize engine load to consume kinetic energy during emergency braking, thereby improving braking stability and safety.

[0026] As an optional implementation, in one embodiment of the invention, determining whether the vehicle meets the preset emergency braking conditions based on the brake pedal signal includes: if the brake pedal is depressed from its initial position to its maximum travel, and the actuation time does not exceed a preset time, then the preset emergency braking conditions are met; wherein, the average brake pedal increase rate within the preset time period is counted as the reference increase rate; if the brake pedal travel increase in any time period is not less than half of the total brake pedal travel, and the brake pedal increase rate in that time period is not less than the reference increase rate, then the preset emergency braking conditions are met. This embodiment of the invention, by setting a dual determination logic of pedal actuation travel (or opening) and increase rate, can accurately identify the driver's emergency braking intention and avoid false triggering during normal braking. Specifically, if the brake pedal increases from its initial position to its maximum travel, and the actuation time is ≤0.2s, the average brake pedal increase rate when the actuation time is equal to 0.2s is counted as K; or if the brake pedal travel increase in a certain time period is ≥1 / 2 of the total brake pedal travel, and the brake pedal increase rate in this time period is ≥K, then the preset emergency braking conditions are met.

[0027] As an optional implementation, in one embodiment of the invention, the preset time ranges from 0.18 to 0.22 seconds. Setting this preset time between 0.18 and 0.22 seconds ensures sensitive detection of emergency braking while filtering out interference signals from normal rapid braking, thus improving the accuracy of the judgment.

[0028] As an optional implementation, in one embodiment of the invention, after the steps of controlling the airbag suspension assembly's airbag suspension exhaust, controlling the tire assembly's tire exhaust, and controlling the dryer's operation to inflate the air compressor into the first air reservoir, the method further includes stopping the control of airbag suspension assembly exhaust, tire assembly exhaust, and dryer operation if it is detected that the brake pedal opening has retracted to a preset opening, or the vehicle's lateral acceleration has reached a preset acceleration, or the vehicle's yaw rate has reached a preset yaw rate. This embodiment of the invention sets multiple stop conditions to promptly stop adjustments when emergency braking ends or the vehicle shows signs of instability, preventing further deterioration of vehicle handling due to excessive reduction in tire pressure or vehicle height, and ensuring vehicle dynamic stability.

[0029] As an optional implementation, in one embodiment of the invention, the preset opening degree is 10%-15% of the total travel of the brake pedal. This embodiment of the invention sets the brake pedal retraction threshold to 10%-15% of the total travel, which can clearly identify the moment the driver intends to release the emergency brake, ensuring that the system resets promptly after the braking process ends, thus avoiding affecting subsequent normal driving operations.

[0030] As an optional implementation, in one embodiment of the invention, before controlling the airbag suspension assembly to deflate and the tire assembly to deflate, the invention further includes determining whether the initial air pressure values ​​of the airbags in the airbag suspension assembly and the tires in the tire assembly are within their respective preset air pressure ranges. If the conditions are not met, the deflation action is not performed. This embodiment of the invention, through pre-emptive air pressure detection, can avoid the risk of insufficient vehicle support or tire derailment after deflation due to excessively low initial air pressure values, ensuring that safety enhancement adjustments are only performed at safe and feasible air pressures, thereby improving system reliability.

[0031] As an optional implementation, in one embodiment of the invention, the step of controlling the exhaust of tire 21 of the tire assembly 2 further includes differential adjustment based on the slip ratio of the front and rear tires 21 of the vehicle to improve the utilization rate of the ground adhesion coefficient of the front and rear wheels and further optimize braking stability; at the same time, the step of controlling the dryer 3 to activate the air compressor 5 to pump air into the first air storage tank 6 specifically includes controlling the airflow path of the air compressor 5 to flow to the dryer 3 and then to the first air storage tank 6, converting part of the engine's kinetic energy into high-pressure gas stored in the first air storage tank 6, which not only reduces the total kinetic energy of the vehicle that needs to be overcome during braking and shortens the braking distance, but also realizes energy recovery; the embodiment of the invention improves energy utilization efficiency while ensuring braking safety through differential adjustment of slip ratio and kinetic energy conversion and storage.

[0032] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 2 and Figure 3 As shown, the airbag suspension assembly 1 includes a second air reservoir 11, a first valve 12, and an airbag suspension 13. The air inlet and outlet of the first valve 12 are respectively connected to the second air reservoir 11 and the airbag suspension 13. The first valve 12 is also electrically connected to the controller 4. In this embodiment of the invention, the controller 4 controls the action of the first valve 12, which can quickly adjust the air pressure in the airbag suspension 13 using the second air reservoir 11, thereby rapidly reducing the vehicle height and center of gravity during emergency braking, improving the vehicle's anti-rollover ability, and enhancing braking stability.

[0033] As an optional implementation, in one embodiment of the invention, the first valve 12 is an electronically controlled air suspension system valve, i.e., ECAS. This embodiment of the invention uses an electronically controlled air suspension system valve as the first valve 12, which enables high-precision electrical signal interaction with the controller 4, ensuring a rapid response to control commands during emergency braking, accurately controlling the exhaust rate and pressure value of the airbag suspension 13, and guaranteeing the timeliness and reliability of vehicle body posture adjustment.

[0034] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 4As shown, the tire assembly 2 further includes a third air reservoir 22, a second valve 23, and a pressure regulator 24. The air inlet of the second valve 23 is connected to the third air reservoir 22, and the second valve 23 is also electrically connected to the controller 4. The air inlet of the pressure regulator 24 is connected to the air outlet of the second valve 23, and the air outlet of the pressure regulator 24 is connected to the tire 21. The pressure regulator 24 is also electrically connected to the controller 4. In this embodiment of the invention, the controller 4 controls the second valve 23 and the pressure regulator 24, which can flexibly adjust the air pressure inside the tire 21. During emergency braking, the tire pressure can be appropriately reduced to increase the contact area between the tire 21 and the ground, improve adhesion, and shorten the braking distance.

[0035] This invention also provides a safety enhancement method during emergency braking, see [link to relevant documentation]. Figure 6 As shown, the process includes step S100: acquiring the vehicle's brake pedal signal in real time; step S200: determining whether the vehicle meets preset emergency braking conditions based on the brake pedal signal; and step S300: if the vehicle meets the preset emergency braking conditions, controlling the airbag suspension assembly to vent air, controlling the tire assembly to vent tires, and controlling the dryer to activate the air compressor to pump air into the first air reservoir. Specifically, during emergency braking, the controller actively reduces the air pressure within the airbag suspension, lowering the vehicle's center of gravity height H. According to the expression for the stability coefficient η=L / (2H), the smaller H is, the larger the stability coefficient η is, and the stronger the vehicle's anti-roll capability, thereby improving the vehicle's stability during emergency braking. In this embodiment, the controller 4 automatically executes the above steps without additional driver intervention. It can lower the vehicle's center of gravity, increase the tire contact area, and utilize engine load to consume kinetic energy during emergency braking, thereby improving braking stability and safety.

[0036] As an optional implementation, in one embodiment of the invention, determining whether the vehicle meets the preset emergency braking conditions based on the brake pedal signal includes: if the brake pedal is depressed from its initial position to its maximum travel, and the actuation time does not exceed a preset time, then the preset emergency braking conditions are met; wherein, the average brake pedal increase rate within the preset time period is counted as the reference increase rate; if the brake pedal travel increase in any time period is not less than half of the total brake pedal travel, and the brake pedal increase rate in that time period is not less than the reference increase rate, then the preset emergency braking conditions are met. This embodiment of the invention, by setting a dual determination logic of pedal actuation travel (opening) and increase rate, can accurately identify the driver's emergency braking intention, avoid false triggering during normal braking, and ensure that the system intervenes only in truly dangerous situations.

[0037] As an optional implementation, in one embodiment of the invention, the preset time ranges from 0.18 to 0.22 seconds. Setting this preset time between 0.18 and 0.22 seconds ensures sensitive detection of emergency braking while filtering out interference signals from normal rapid braking, thus improving the accuracy of the judgment.

[0038] As an optional implementation, in one embodiment of the invention, after the steps of controlling the airbag suspension assembly's airbag suspension exhaust, controlling the tire assembly's tire exhaust, and controlling the dryer's operation to inflate the air compressor into the first air reservoir, the method further includes stopping the control of airbag suspension assembly exhaust, tire assembly exhaust, and dryer operation if it is detected that the brake pedal opening has retracted to a preset opening, or the vehicle's lateral acceleration has reached a preset acceleration, or the vehicle's yaw rate has reached a preset yaw rate. This embodiment of the invention sets multiple stop conditions to promptly stop adjustments when emergency braking ends or the vehicle shows signs of instability, preventing further deterioration of vehicle handling due to excessive reduction in tire pressure or vehicle height, and ensuring vehicle dynamic stability.

[0039] As an optional implementation, in one embodiment of the invention, the preset opening degree is 10%-15% of the total travel of the brake pedal. This embodiment of the invention sets the brake pedal retraction threshold to 10%-15% of the total travel, which can clearly identify the moment the driver intends to release the emergency brake, ensuring that the system resets promptly after the braking process ends, thus avoiding affecting subsequent normal driving operations.

[0040] As an optional implementation, in one embodiment of the invention, before controlling the airbag suspension assembly to deflate and the tire assembly to deflate, the invention further includes determining whether the initial air pressure values ​​of the airbags in the airbag suspension assembly and the tires in the tire assembly are within their respective preset air pressure ranges. If the conditions are not met, the deflation action is not performed. This embodiment of the invention, through pre-emptive air pressure detection, can avoid the risk of insufficient vehicle support or tire derailment after deflation due to excessively low initial air pressure values, ensuring that safety enhancement adjustments are only performed at safe and feasible air pressures, thereby improving system reliability.

[0041] As an optional implementation, in one embodiment of the invention, the step of controlling the exhaust of tire 21 of the tire assembly 2 further includes differential adjustment based on the slip ratio of the front and rear tires 21 of the vehicle to improve the utilization rate of the ground adhesion coefficient of the front and rear wheels and further optimize braking stability; at the same time, the step of controlling the dryer 3 to activate the air compressor 5 to pump air into the first air storage tank 6 specifically includes controlling the airflow path of the air compressor 5 to flow to the dryer 3 and then to the first air storage tank 6, converting part of the engine's kinetic energy into high-pressure gas stored in the first air storage tank 6, which not only reduces the total kinetic energy of the vehicle that needs to be overcome during braking and shortens the braking distance, but also realizes energy recovery; the embodiment of the invention improves energy utilization efficiency while ensuring braking safety through differential adjustment of slip ratio and kinetic energy conversion and storage.

[0042] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 2 and Figure 3 As shown, the airbag suspension assembly 1 includes a second air reservoir 11, a first valve 12, and an airbag suspension 13. The air inlet and outlet of the first valve 12 are respectively connected to the second air reservoir 11 and the airbag suspension 13. The first valve 12 is also electrically connected to the controller 4. In this embodiment of the invention, the controller 4 controls the action of the first valve 12, which can quickly adjust the air pressure in the airbag suspension 13 using the second air reservoir 11, thereby rapidly reducing the vehicle height and center of gravity during emergency braking, improving the vehicle's anti-rollover ability, and enhancing braking stability.

[0043] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0044] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A safety enhancement system for emergency braking, characterized in that, include: Airbag suspension assembly (1), tire assembly (2), dryer (3) and controller (4); The controller (4) is electrically connected to the airbag suspension assembly (1), the tire assembly (2), and the dryer (3), and the controller (4) is configured to: Real-time acquisition of vehicle brake pedal signals; The system determines whether the vehicle meets the preset emergency braking conditions based on the brake pedal signal. If the vehicle meets the preset emergency braking conditions, the airbag suspension (13) of the airbag suspension assembly (1) is controlled to vent, the tire (21) of the tire assembly (2) is controlled to vent, and the dryer (3) is controlled to operate so that the air compressor (5) pumps air into the first air reservoir (6).

2. The safety enhancement system during emergency braking according to claim 1, characterized in that, The airbag suspension assembly (1) includes: Second gas storage tank (11); The first valve (12) has an air inlet and an air outlet that are connected to the second air storage cylinder (11) and the airbag suspension (13) respectively. The first valve (12) is also electrically connected to the controller (4).

3. The safety enhancement system during emergency braking according to claim 2, characterized in that: The first valve (12) is an electronically controlled air suspension system valve.

4. The safety enhancement system during emergency braking according to claim 1, characterized in that, The tire assembly (2) also includes: Third gas storage tank (22); The second valve (23) has an air inlet that is connected to the third air storage tank (22), and the second valve (23) is also electrically connected to the controller (4); The air pressure regulator (24) has an air inlet connected to the air outlet of the second valve (23), an air outlet connected to the tire (21), and is also electrically connected to the controller (4).

5. A safety enhancement method during emergency braking, applied to the safety enhancement system during emergency braking as described in claim 1, characterized in that, Includes the following steps: Real-time acquisition of vehicle brake pedal signals; The system determines whether the vehicle meets the preset emergency braking conditions based on the brake pedal signal. If the vehicle meets the preset emergency braking conditions, the system controls the airbag suspension assembly to exhaust air, controls the tire assembly to exhaust tires, and controls the dryer to activate the air compressor to pump air into the first air reservoir.

6. The safety enhancement method during emergency braking according to claim 5, characterized in that, The step of determining whether the vehicle meets the preset emergency braking conditions based on the brake pedal signal includes: If the brake pedal is pressed from its initial position to its maximum travel and the actuation time does not exceed a preset time, then the preset emergency braking conditions are met; wherein, the average brake pedal increase rate within the preset time period is used as a reference increase rate. If the increase in brake pedal travel during any given period is not less than half of the total brake pedal travel, and the rate of increase in brake pedal travel during that period is not less than the reference rate of increase, then the preset emergency braking conditions are met.

7. The safety enhancement method during emergency braking according to claim 6, characterized in that: The preset time ranges from 0.18 to 0.22 seconds.

8. The safety enhancement method during emergency braking according to claim 5, characterized in that, After the steps of controlling the airbag suspension assembly to vent air, controlling the tire assembly to vent tires, and controlling the dryer to operate so that the air compressor pumps air into the first air reservoir, the method further includes: If the brake pedal opening is detected to retract to the preset opening, or the vehicle's lateral acceleration reaches the preset acceleration, or the vehicle's yaw rate reaches the preset yaw rate, then control of the airbag suspension assembly exhaust, tire assembly exhaust, and dryer operation will be stopped.

9. The safety enhancement method during emergency braking according to claim 8, characterized in that: The preset opening is 10%-15% of the total travel of the brake pedal.

10. The safety enhancement method during emergency braking according to claim 5, characterized in that, Before controlling the airbag suspension exhaust of the airbag suspension assembly and controlling the tire exhaust of the tire assembly, the method further includes: Determine whether the initial air pressure values ​​inside the airbags of the airbag suspension assembly and the tires of the tire assembly are within their respective preset air pressure ranges. If not, do not perform the venting action.

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