Braking system and vehicle

Abstract

The utility model discloses a kind of brake systems, brake system includes: gas storage device, electronic brake device and pressure regulating device. Among them, electronic brake device includes the brake controller and brake module of communication connection, brake module is communicated with brake chamber;The both ends of pressure regulating device are communicated with gas storage device and brake module respectively;When brake controller is not failure, pressure regulating device does not work, and brake module adjusts the gas flow of brake chamber by brake controller;When brake controller is failure, pressure regulating device works, and adjusts the gas flow of brake chamber by pressure regulating device. According to the brake system of the utility model, it can not only retain the brake quick response advantage brought by whole vehicle pressure promotion, improve brake performance, but also prevent brake module from being damaged due to long-term high pressure state, improve the safety of brake system.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a braking system and a vehicle. Background Technology

[0002] In existing technologies, to improve response time and reduce the volume of the vehicle's air reservoir, the vehicle's air pressure is typically increased to 12.5 bar. However, to control the overall cost of the vehicle, the normal operating pressure of the brakes is not increased and remains at 10 bar. Therefore, the braking system needs to limit the pressure at the brake foot valve to ensure that the brakes can operate at the rated pressure.

[0003] For vehicles equipped with EBS (Electronic Brake System), the brake foot valve lacks a mechanical pressure limiting device; instead, it regulates brake pressure electronically. When EBS is functioning properly, the brake pressure can be stably maintained within a safe range. However, if EBS fails and the driver does not repair it promptly, the brakes will remain under high pressure (12.5 bar) for an extended period, which can easily lead to serious damage.

[0004] In addition, some vehicles equipped with EBS will have a pressure relief valve added to the air intake of the braking system to limit the pressure to 10 bar. When EBS is working normally, this braking system cannot take advantage of the rapid braking response brought by the increase in vehicle pressure. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a braking system that retains the advantage of rapid braking response brought about by increased vehicle pressure, thus improving braking performance, while preventing damage to the braking module caused by prolonged high pressure, thereby enhancing the safety of the braking system.

[0006] Another objective of this invention is to provide a vehicle that includes the aforementioned braking system.

[0007] A braking system according to a first aspect of the present invention includes: an air storage device; an electronic braking device, the electronic braking device including a braking controller and a braking module connected in communication, the braking module being connected to a braking air chamber; and a pressure regulating device, the two ends of the pressure regulating device being connected to the air storage device and the braking module respectively; wherein, when the braking controller is not faulty, the pressure regulating device is not working, and the braking module adjusts the air flow to the braking air chamber through the braking controller; when the braking controller fails, the pressure regulating device is working, and the air flow to the braking air chamber is adjusted through the pressure regulating device.

[0008] According to the braking system of this utility model embodiment, by setting a pressure regulating device between the air storage device and the braking module, and adjusting the air flow to the brake chamber according to whether the brake controller fails, it can retain the advantage of rapid braking response brought by the overall vehicle pressure increase, optimize the response time of the braking system, improve braking performance, and prevent the braking module from being damaged due to long-term high pressure, thereby improving the safety and reliability of the braking system and ensuring the driving safety of the whole vehicle.

[0009] According to some embodiments of this utility model, the pressure regulating device includes: a control valve, which is connected to the air storage device and the braking module respectively; a pressure limiting valve, which is connected to the control valve and the braking module respectively; when the braking controller is not faulty, the airflow of the air storage device flows to the braking chamber through the control valve and the braking module; when the braking controller fails, the airflow of the air storage device flows to the braking chamber through the control valve, the pressure limiting valve and the braking module.

[0010] According to some embodiments of the present invention, the control valve includes an air inlet, a first air outlet, and a second air outlet. The air inlet is connected to the air storage device, the first air outlet is connected to the braking module, and the second air outlet is connected to the air inlet of the pressure limiting valve. The air inlet may be selectively connected to one of the first air outlet and the second air outlet.

[0011] According to some embodiments of the present invention, the braking system further includes: a vehicle controller, which is communicatively connected to the brake controller and electrically connected to the voltage regulating device. The vehicle controller can identify whether the braking module has failed. When the brake controller is not failed, the vehicle controller does not supply power to the voltage regulating device; when the brake controller fails, the vehicle controller supplies power to the voltage regulating device.

[0012] According to some embodiments of the present invention, the pressure regulating device includes a first pressure regulating device and a second pressure regulating device, the braking module includes a front braking module and a rear braking module, the braking chamber includes a front braking chamber and a rear braking chamber, the air storage device is connected to the rear braking chamber through the first pressure regulating device and the rear braking module, and the air storage device is connected to the front braking chamber through the second pressure regulating device and the front braking module.

[0013] According to some embodiments of the present invention, the air storage device includes a first air storage cylinder and a second air storage cylinder, and the braking system further includes a brake foot valve, which is connected to the first pressure regulating device through the first air storage cylinder and to the second pressure regulating device through the second air storage cylinder.

[0014] According to some embodiments of the present invention, an anti-lock braking device is provided between the front braking module and the front braking chamber.

[0015] According to some embodiments of the present invention, the braking system further includes a compressor, which is connected to the air storage device.

[0016] The vehicle according to a second aspect of the present invention includes a braking system according to the first aspect of the present invention described above.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a braking system according to an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 The diagram shows the airflow path of the braking system when the brake controller is functioning correctly.

[0021] Figure 3 yes Figure 1 The diagram shows the airflow path of the braking system when the brake controller fails.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Braking system;

[0024] 10. Air storage device; 11. First air storage tank; 12. Second air storage tank; 20. Electronic braking device; 21. Brake controller; 22. Braking module; 221. Front brake module; 222. Rear brake module; 23. Brake chamber; 231. Front brake chamber; 232. Rear brake chamber; 30. Pressure regulating device; 31. Control valve; 311. Air inlet; 312. First air outlet; 313. Second air outlet; 32. Pressure limiting valve; 33. First pressure regulating device; 34. Second pressure regulating device; 40. Vehicle controller; 50. Brake foot valve; 60. Anti-lock braking system; 70. Compressor; 80. Air pipeline. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-3 A braking system 100 according to a first aspect embodiment of the present invention is described.

[0026] like Figures 1-3 As shown, the braking system 100 according to the first aspect of the present invention includes: an air storage device 10, an electronic braking device 20, and a pressure regulating device 30.

[0027] Specifically, the electronic braking device 20 includes a brake controller 21 and a brake module 22 connected by communication, with the brake module 22 communicating with the brake chamber 23. The two ends of the pressure regulating device 30 are respectively connected to the air storage device 10 and the brake module 22. When the brake controller 21 is functioning correctly, the pressure regulating device 30 does not operate, and the brake module 22 adjusts the air flow to the brake chamber 23 through the brake controller 21. When the brake controller 21 fails, the pressure regulating device 30 operates, adjusting the air flow to the brake chamber 23.

[0028] For example, in Figure 1 In the example, the brake controller 21 and the brake module 22 are connected by a hard wire (such as an electric wire or cable), and an air pipeline 80 suitable for gas flow is sequentially provided between the air storage device 10, the pressure regulating device 30 and the brake air chamber 23.

[0029] When the brake controller 21 is functioning correctly, the pressure regulating device 30 does not operate, and the compressed air (pressure 12.5 bar) stored in the air storage device 10 is directly supplied to the electronic braking device 20. The brake controller 21 adjusts the airflow to the brake chamber 23 according to the air consumption required by the brake module 22. In this way, when the brake module 22 is operating normally, the advantage of rapid braking response brought about by the overall vehicle pressure increase can be retained, shortening the response time of the braking system 100, improving braking performance, enhancing the braking effect of the braking system 100, and improving vehicle handling.

[0030] When the brake controller 21 fails, the compressed air stored in the air storage device 10 is first output to the pressure regulating device 30. The pressure regulating device 30 operates to adjust the pressure of the output gas from the air storage device 10 to meet the inlet pressure requirements of the brake chamber 23 (generally, the inlet pressure of the brake chamber 23 does not exceed 10 bar). Then, the pressure regulating device 30 adjusts the airflow to the brake chamber 23. In this way, when the brake controller 21 fails, the pressure regulating device 30 can protect the brake module 22, preventing damage caused by the brake module 22 being under high pressure for a long time due to the driver's failure to maintain it in time. This improves the safety and reliability of the braking system 100, thereby ensuring the driving safety of the entire vehicle.

[0031] According to the embodiment of the present invention, the braking system 100, by setting a pressure regulating device 30 between the air storage device 10 and the braking module 22, and adjusting the air flow to the brake chamber 23 according to whether the brake controller 21 fails, can retain the advantage of rapid braking response brought about by the increase in vehicle pressure, optimize the response time of the braking system 100, improve braking performance, and prevent the braking module 22 from being damaged due to long-term high pressure, thereby improving the safety and reliability of the braking system 100 and ensuring the driving safety of the entire vehicle.

[0032] According to some embodiments of this utility model, the pressure regulating device 30 includes a control valve 31 and a pressure limiting valve 32. The control valve 31 is connected to both the air storage device 10 and the braking module 22. The pressure limiting valve 32 is connected to both the control valve 31 and the braking module 22. When the brake controller 21 is functioning correctly, the airflow from the air storage device 10 flows through the control valve 31 and the braking module 22 to the brake chamber 23; when the brake controller 21 fails, the airflow from the air storage device 10 flows through the control valve 31, the pressure limiting valve 32, and the braking module 22 to the brake chamber 23.

[0033] When the brake controller 21 is functioning correctly, the compressed air stored in the air reservoir 10 flows directly to the brake chamber 23 via the control valve 31 connected to the air reservoir 10 and then regulated by the brake controller 21. At this time, the pressure relief valve 32 is not in operation and does not affect the normal airflow path. The brake module 22 controls the airflow to the brake chamber 23 through the brake controller 21 to achieve vehicle braking. When the brake controller 21 fails, the airflow from the air reservoir 10 first passes through the control valve 31, then through the pressure relief valve 32. The pressure relief valve 32 regulates the airflow pressure to ensure that the gas pressure after pressure relief meets the intake pressure requirements of the brake chamber 23. The air then flows to the brake chamber 23 via the brake module 22, thus ensuring that the brake chamber 23 receives a stable and safe air pressure even if the brake controller 21 fails.

[0034] Therefore, by cooperating with the control valve 31 and the pressure relief valve 32, serious damage to the brake module 22 due to prolonged high pressure can be effectively avoided in the event of brake controller 21 failure, thus extending the service life of the brake module 22. Furthermore, even in the event of brake controller 21 failure, the control valve 31 and the pressure relief valve 32 ensure that the brake module 22 continues to operate normally, improving the reliability of the braking system 100. In addition, when the brake controller 21 is functioning correctly, the rapid braking response advantage brought by the increased vehicle pressure can be retained; when the brake controller 21 fails, the pressure relief valve 32 ensures the safe operation of the braking system 100, balancing braking performance and safety performance.

[0035] Furthermore, the control valve 31 includes an air inlet 311, a first air outlet 312, and a second air outlet 313. The air inlet 311 is connected to the air storage device 10, the first air outlet 312 is connected to the braking module 22, and the second air outlet 313 is connected to the air inlet of the pressure relief valve 32. The air inlet 311 can be selectively connected to one of the first air outlet 312 or the second air outlet 313.

[0036] like Figure 2 As shown, when the brake controller 21 is not malfunctioning, the air inlet 311 of the control valve 31 is connected to the first air outlet 312. At this time, the compressed air of the air storage device 10 enters the control valve 31 through the air inlet 311 and then flows out from the first air outlet 312. It flows along the air pipeline 80 indicated by the arrow in the figure and finally flows to the brake module 22.

[0037] like Figure 3 As shown, when the brake controller 21 fails, the air inlet 311 of the control valve 31 is connected to the second air outlet 313. At this time, the compressed air from the air storage device 10 enters the control valve 31 through the air inlet 311 and flows out from the second air outlet 313. It flows from the air inlet of the pressure limiting valve 32 to the pressure limiting valve 32. The pressure limiting valve 32 regulates the air pressure of the airflow within a safe range. Then the airflow flows according to the air pipeline 80 indicated by the arrow in the figure and finally flows to the brake module 22.

[0038] With this configuration, the control valve 31 can flexibly switch the airflow path according to the working status of the brake controller 21, ensuring that the braking system 100 can work normally under different operating conditions (whether the brake controller 21 fails), thus improving the reliability of the braking system 100. Moreover, without changing the relevant valve body structure, it can quickly meet the requirement of limiting the air pressure of the brake module 22 when the brake controller 21 fails. This avoids the need for valve body manufacturers to create new molds to manufacture complex valve bodies due to changes in the valve body, reducing design and manufacturing costs. It also allows for rapid modification of the valve body when problems are discovered during after-sales maintenance, reducing losses caused by the complexity of the valve body design and the difficulty of modification.

[0039] It should be noted that the control valve 31 is a solenoid valve, and this application does not impose any specific restrictions on it.

[0040] According to some embodiments of the present invention, the braking system 100 further includes a vehicle controller 40, which is communicatively connected to the brake controller 21 and electrically connected to the pressure regulating device 30. The vehicle controller 40 can identify whether the brake module 22 has failed.

[0041] When the brake controller 21 is not faulty, the vehicle controller 40 does not supply power to the voltage regulating device 30; when the brake controller 21 is faulty, the vehicle controller 40 supplies power to the voltage regulating device 30.

[0042] The vehicle controller 40, through its communication connection with the brake controller 21, can obtain real-time operating status information of the brake controller 21, thereby identifying whether the brake controller 21 has failed. Based on the operating status information of the brake controller 21, it then determines whether to supply power to the pressure regulating device 30. The coordinated action of the vehicle controller 40 and other components achieves rapid response, improves the accuracy of braking actions, and enhances the braking performance and driving experience of the vehicle during normal driving. Furthermore, when the brake controller 21 fails, the vehicle controller 40 promptly supplies power to the pressure regulating device 30, enabling the pressure regulating device 30 to quickly commence operation. This enhances the safety and reliability of the braking system 100, avoiding safety hazards caused by the failure of the brake controller 21.

[0043] It should be noted that the vehicle controller 40 and the brake controller 21 communicate via CAN (Controller Area Network). In addition, when the brake controller 21 fails, the vehicle controller 40 supplies a voltage of 24V to the control valve 31, causing the control valve 31 to operate and connect the pressure relief valve 32. This application does not impose any specific restrictions on this.

[0044] In some optional embodiments, the pressure regulating device 30 includes a first pressure regulating device 33 and a second pressure regulating device 34, the braking module 22 includes a front braking module 221 and a rear braking module 222, and the brake chamber 23 includes a front brake chamber 231 and a rear brake chamber 232. The air storage device 10 is connected to the rear brake chamber 232 through the first pressure regulating device 33 and the rear brake module 222, and the air storage device 10 is connected to the front brake chamber 231 through the second pressure regulating device 34 and the front brake module 221.

[0045] In practical implementation, the first pressure regulating device 33 is responsible for regulating the airflow to the rear brake module 222 and the rear brake chamber 232, while the second pressure regulating device 34 is responsible for regulating the airflow to the front brake module 221 and the front brake chamber 231. This achieves independent regulation of the front brake module 221 and the rear brake module 222. Therefore, if one of the pressure regulating devices 30 or the brake module 22 fails, the other pressure regulating device 30 and the brake module 22 can still maintain partial braking function, improving the safety and reliability of the braking system 100. Moreover, during vehicle maintenance, the front and rear brake modules 222 and the corresponding pressure regulating devices 30 can be inspected and repaired specifically, reducing the overall vehicle maintenance difficulty.

[0046] According to some other embodiments of the present invention, the air storage device 10 includes a first air storage cylinder 11 and a second air storage cylinder 12. The braking system 100 also includes a brake foot valve 50, which is connected to a first pressure regulating device 33 through the first air storage cylinder 11 and to a second pressure regulating device 34 through the second air storage cylinder 12.

[0047] The first air reservoir 11 and the second air reservoir 12 provide stable and continuous airflow to the rear brake module 222 and the front brake module 221, respectively, ensuring that the braking system 100 receives sufficient air pressure under conditions such as continuous braking or emergency braking, thus guaranteeing the reliability of the braking system 100. Furthermore, by connecting the brake foot valve 50 to the two air reservoirs and the pressure regulating device 30, the air pressure of the front brake chamber 231 and the rear brake chamber 232 can be controlled more precisely, thereby achieving braking balance and improving vehicle stability.

[0048] According to some embodiments of this utility model, an anti-lock braking device 60 is provided between the front braking module 221 and the front braking chamber 231. When the vehicle brakes, if the front wheels lock up, the vehicle will lose steering ability. The anti-lock braking device 60 can prevent the front wheels from locking up, allowing the driver to still avoid obstacles or adjust the driving direction by turning the steering wheel during braking, thus avoiding collision accidents. Moreover, the anti-lock braking device 60 can prevent the vehicle from experiencing instability such as fishtailing and skidding due to front wheel lockup, ensuring the safety of the occupants.

[0049] It should be noted that the anti-lock braking device 60 may specifically be an ABS (Anti-locked Braking System) solenoid valve, and this application does not impose any specific restrictions on it.

[0050] According to some embodiments of the present invention, the braking system 100 further includes a compressor 70, which is connected to the air storage device 10 and provides high-pressure compressed air to the air storage device 10, so that the braking system 100 has a more sufficient air pressure supply during continuous braking or emergency braking.

[0051] A vehicle (not shown) according to a second aspect embodiment of the present invention includes a braking system 100 according to the first aspect embodiment of the present invention described above.

[0052] The vehicle according to the present utility model, by adopting the above-described braking system 100, improves the vehicle's driving safety and operational reliability, retains the advantage of rapid braking response brought about by the increase in vehicle pressure, improves braking performance, and enhances vehicle handling.

[0053] Other components and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0054] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 this utility model 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 this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0057] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A braking system, characterized in that, include: Gas storage device; An electronic braking device, comprising a brake controller and a brake module connected via communication, wherein the brake module is in communication with a brake chamber; A pressure regulating device, the two ends of which are respectively connected to an air storage device and a braking module; When the brake controller is functioning correctly, the pressure regulating device does not operate, and the brake module adjusts the airflow to the brake chamber via the brake controller. When the brake controller fails, the pressure regulating device operates, and the airflow to the brake chamber is adjusted via the pressure regulating device.

2. The braking system according to claim 1, characterized in that, The voltage regulating device includes: A control valve, which is connected to both the air storage device and the braking module; A pressure relief valve, which is connected to both the control valve and the braking module; When the brake controller is functioning correctly, the airflow from the air storage device flows through the control valve and the brake module to the brake chamber; when the brake controller fails, the airflow from the air storage device flows through the control valve, the pressure limiting valve, and the brake module to the brake chamber.

3. The braking system according to claim 2, characterized in that, The control valve includes an air inlet, a first air outlet, and a second air outlet. The air inlet is connected to the air storage device, the first air outlet is connected to the braking module, and the second air outlet is connected to the air inlet of the pressure relief valve. The air inlet may be selectively connected to one of the first air outlet and the second air outlet.

4. The braking system according to any one of claims 1-3, characterized in that, Also includes: The vehicle controller is communicatively connected to the brake controller and electrically connected to the voltage regulating device. The vehicle controller can identify whether the brake module has failed. When the brake controller is functioning correctly, the vehicle controller does not supply power to the voltage regulating device; when the brake controller fails, the vehicle controller supplies power to the voltage regulating device.

5. The braking system according to any one of claims 1-3, characterized in that, The pressure regulating device includes a first pressure regulating device and a second pressure regulating device; the braking module includes a front braking module and a rear braking module; and the brake chamber includes a front brake chamber and a rear brake chamber. The air storage device is connected to the rear brake chamber through the first pressure regulating device and the rear brake module, and the air storage device is connected to the front brake chamber through the second pressure regulating device and the front brake module.

6. The braking system according to claim 5, characterized in that, The gas storage device includes a first gas storage cylinder and a second gas storage cylinder. The braking system also includes: The brake foot valve is connected to the first pressure regulating device through the first air reservoir, and the brake foot valve is connected to the second pressure regulating device through the second air reservoir.

7. The braking system according to claim 5, characterized in that, An anti-lock braking device is provided between the front braking module and the front braking chamber.

8. The braking system according to claim 1, characterized in that, Also includes: The compressor is connected to the gas storage device.

9. A vehicle, characterized in that, Includes the braking system according to any one of claims 1-8.

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