Bridge brake module, electronic brake system, brake control method, and electronic device

Abstract

The application relates to the brake technology field and provides a bridge brake module, an electronic brake system, a brake control method and electronic equipment. The bridge brake module comprises a relay piston, a control cavity and a brake cavity are separated by the relay piston, the control cavity is connected with a control port, and the brake cavity is connected with an exhaust port; a first one-way valve is arranged in a first exhaust passage of the brake cavity leading to the exhaust port; a second one-way valve is arranged in a second exhaust passage of the relay piston, the second exhaust passage being connected between the control cavity and the brake cavity; an exhaust control electromagnetic valve is connected with the control port; in a brake release state, gas in the brake cavity pushes the first one-way valve and the second one-way valve to guide the first exhaust passage and the second exhaust passage to be conducted, and the exhaust control electromagnetic valve is conducted; wherein the opening pressure of the second one-way valve is smaller than the opening pressure of the first one-way valve. The first one-way valve is used for realizing the waterproof function of the bridge brake module; the second one-way valve and the exhaust control electromagnetic valve are used for realizing the exhaust of the residual pressure in the valve cavity in the brake release state.

Description

Technical Field

[0001] This invention relates to the field of braking technology, and more specifically, to axle braking modules, electronic braking systems, braking control methods, and electronic devices. Background Technology

[0002] The axle braking module is located in the vehicle chassis, which often leads to water wading issues.

[0003] Traditional bridge brake modules do not have waterproofing capabilities. In water-related conditions, water can enter the valve chamber through the exhaust port of the bridge brake module, causing the product or even the entire braking system to fail.

[0004] Regarding the water immersion issue of the bridge braking module, if a check valve is only installed at the exhaust port, it is easy for the air pressure inside the valve chamber to not be completely released when the brake is released. The residual air pressure will affect the sealing of the valve chamber and may even cause the entire braking system to fail.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides an axle braking module, an electronic braking system, a braking control method, and an electronic device, which can effectively achieve waterproofing and can drain residual pressure in the valve chamber when the brake is released.

[0007] One aspect of the present invention provides an axle braking module, including a relay piston disposed in a valve chamber, the relay piston dividing the valve chamber into a control chamber and a braking chamber, the control chamber being connected to a control port, and the braking chamber being connected to an exhaust port; the axle braking module further includes: a first one-way valve disposed in a first exhaust passage leading from the braking chamber to the exhaust port; a second one-way valve disposed in the second exhaust passage, the relay piston being provided with a second exhaust passage connecting the control chamber and the braking chamber; and an exhaust control solenoid valve connected to the control port; in the brake release state, gas in the braking chamber pushes the first one-way valve to open the first exhaust passage and pushes the second one-way valve to open the second exhaust passage, and the exhaust control solenoid valve is activated; wherein the opening pressure of the second one-way valve is less than the opening pressure of the first one-way valve.

[0008] In some embodiments, the bridge braking module further includes: a pressure sensor connected to the braking chamber; in the brake release state, the exhaust control solenoid valve is activated to reduce the pressure value of the pressure sensor to a preset pressure value.

[0009] In some embodiments, both the exhaust control solenoid valve and the pressure sensor are connected to an electronic control unit.

[0010] In some embodiments, the exhaust control solenoid valve is a normally closed solenoid valve.

[0011] In some embodiments, the bridge braking module further includes: an intake control solenoid valve connected to a control air source and the control port; in the brake release state, the intake control solenoid valve is turned off; in the electric braking state, the intake control solenoid valve is turned on and the exhaust control solenoid valve is turned off.

[0012] In some embodiments, the bridge braking module further includes: an intake backup solenoid valve, connected to the foot brake valve and the control port; in the brake release state and the electric braking state, the intake backup solenoid valve is turned off; in the backup pressure braking state, the intake backup solenoid valve is turned on, and the intake control solenoid valve and the exhaust control solenoid valve are turned off.

[0013] In some embodiments, the intake control solenoid valve is a normally closed solenoid valve, and the intake backup solenoid valve is a normally open solenoid valve.

[0014] In some embodiments, both the intake control solenoid valve and the intake backup solenoid valve are connected to an electronic control unit.

[0015] Another aspect of the present invention provides an electronic braking system configured with an axle braking module as described in any of the above embodiments.

[0016] Another aspect of the present invention provides a braking control method for controlling an axle braking module as described in any of the above embodiments, comprising: in response to a braking release signal, controlling the exhaust control solenoid valve to open until the gas in the valve chamber is exhausted.

[0017] In some embodiments, the bridge braking module further includes a pressure sensor connected to the control port; the response to the brake release signal further includes: monitoring the pressure value of the pressure sensor, and when the pressure value is detected to decrease to a preset pressure value, controlling the exhaust control solenoid valve to shut off.

[0018] Another aspect of the present invention provides an electronic device for implementing the braking control method as described in any of the above embodiments.

[0019] The beneficial effects of this invention compared to the prior art include at least the following:

[0020] The bridge braking module of this invention achieves waterproofing through a first one-way valve located in the first exhaust channel leading from the brake chamber to the exhaust port. This prevents water from entering the valve chamber from the exhaust port, enabling the bridge braking module to meet underwater operation requirements, improving the product's waterproofing capability, and enhancing the cleanliness of the vehicle's brake lines and the service life of brake components. In the brake-released state, the first one-way valve opens the first exhaust channel to release air. Through a second one-way valve located in the second exhaust channel connecting the control chamber and the brake chamber, and an exhaust control solenoid valve connected to the control port, with the opening pressure of the second one-way valve being less than that of the first one-way valve, the exhaust control solenoid valve remains open in the brake-released state, effectively venting residual pressure in the valve chamber. This is simple and convenient to implement, ensuring the stability and reliability of the product and the entire braking system, and improving vehicle safety.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0023] Figures 1 to 3 This is a schematic diagram of the structural principle of the bridge braking module in an embodiment of the present invention;

[0024] in, Figure 1 The exhaust path is shown in the brake-released state. Figure 2 This shows the intake path in electronic braking mode. Figure 3 The intake path is shown under the standby braking state;

[0025] Figure 4 This is a schematic diagram of the steps of the braking control method in an embodiment of the present invention. Detailed Implementation

[0026] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to fully and completely convey the concept of the exemplary embodiments to those skilled in the art.

[0027] The accompanying drawings are merely illustrative of the invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0028] The use of terms such as "first," "second," and similar terms in the specific description does not indicate any order, quantity, or importance, but is merely used to distinguish different components. In the description of this invention, terms such as "upper," "lower," etc., indicate the orientation or positional relationship 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.

[0029] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features in different embodiments can be combined with each other.

[0030] Figure 1 The structural principle of the bridge braking module is shown, with the exhaust path in the brake-released state indicated; see reference. Figure 1 As shown, the bridge braking module provided in this embodiment of the invention includes:

[0031] A relay piston 10 is provided in the valve chamber, which divides the valve chamber into a control chamber 20 and a braking chamber 30. The control chamber 20 is connected to a control port 22, and the braking chamber 30 is connected to an exhaust port 33.

[0032] The first one-way valve 40 is disposed in the first exhaust passage 300 of the brake chamber 30 leading to the exhaust port 33;

[0033] The second one-way valve 50 is provided in the second exhaust passage 100, which connects the control chamber 20 and the braking chamber 30. The second one-way valve 50 is provided in the second exhaust passage 100.

[0034] Exhaust control solenoid valve 60, connected to control port 22;

[0035] When the brake is released, the gas in the brake chamber 30 pushes the first check valve 40 to open the first exhaust passage 300 and pushes the second check valve 50 to open the second exhaust passage 100, and the exhaust control solenoid valve 60 is turned on.

[0036] The opening pressure of the second check valve 50 is less than that of the first check valve 40.

[0037] The bridge braking module of the present invention achieves waterproof function by setting a first one-way valve 40 in the first exhaust channel 300 leading from the brake cavity 30 to the exhaust port 33, preventing water from entering the valve cavity from the exhaust port 33, so that the bridge braking module meets the requirements for underwater operation, improves the waterproof capability of the product, and enhances the cleanliness of the vehicle's brake pipeline and the service life of brake components.

[0038] The first one-way valve 40 can specifically adopt a valve structure with a spring. Under the action of the spring force, the first one-way valve 40 is in sealed contact with the inner wall of the first exhaust channel 300, at which time water, gas, etc. from the exhaust port 33 cannot enter the valve cavity; when the spring is compressed downward, the first one-way valve 40 disengages from the sealed contact with the first exhaust channel 300, thereby opening the first exhaust channel 300, so that the gas in the brake chamber 30 can be discharged through the first exhaust path P1 (brake chamber 30 → first exhaust channel 300 → exhaust port 33 → outside the valve).

[0039] Thus, by utilizing the one-way conduction characteristic of the first one-way valve 40, the waterproof function of the bridge braking module is realized, and the first one-way valve 40 can open the first exhaust channel 300 to achieve exhaust when the brake is released.

[0040] Furthermore, to ensure that the gas in the brake chamber 30 is completely exhausted and unaffected by the first one-way valve 40 in the brake-released state, the bridge brake module of the present invention also provides a second one-way valve 50 in the second exhaust channel 100 connecting the control chamber 20 and the brake chamber 30 of the relay piston 10, and provides an exhaust control solenoid valve 60 connected to the control port 22, and the opening pressure of the second one-way valve 50 is less than the opening pressure of the first one-way valve 40; thus, when the gas in the brake chamber 30 is gradually discharged and the first one-way valve 40 resumes its sealing contact with the first exhaust channel 300, the residual gas in the brake chamber 30 can continue to push the second one-way valve 50 and be smoothly discharged through the second exhaust path P2 (brake chamber 30 → second exhaust channel 100 → control chamber 20 → control port 22 → exhaust control solenoid valve 60 → outside the valve).

[0041] The second check valve 50 can specifically adopt a sealing plug structure. In the braking state, the gas from the brake chamber 30 gently pushes the second check valve 50, which can disengage the second check valve 50 from the sealing contact with the inner wall of the second exhaust passage 100, thereby opening the passage between the brake chamber 30 and the control chamber 20; while when the gas from the control chamber 20 pushes the second check valve 50, the second check valve 50 maintains the sealing contact with the inner wall of the second exhaust passage 100 to avoid gas leakage in the braking state.

[0042] Therefore, in the brake-released state, simply keeping the exhaust control solenoid valve 60 open is sufficient to effectively exhaust the residual pressure in the valve chamber. This is simple and convenient to implement, ensuring the stability and reliability of the product and the entire braking system, and improving vehicle safety.

[0043] In some embodiments, the bridge braking module further includes:

[0044] Air pressure sensor 66 is connected to brake chamber 30;

[0045] When the brake is released, the exhaust control solenoid valve 60 is activated, causing the air pressure value of the air pressure sensor 66 to decrease to the preset air pressure value.

[0046] The air pressure value of the air pressure sensor 66 reflects the residual air pressure in the valve chamber. When the air pressure value of the air pressure sensor 66 decreases to the preset air pressure value (the preset air pressure value is, for example, 0.05 bar, but not limited to this), it indicates that the gas in the valve chamber has been basically exhausted. At this time, the residual pressure inside the valve chamber is very small and can be ignored. Therefore, the exhaust control solenoid valve 60 can be turned off to end the exhaust process.

[0047] Traditionally, when the brake is released, only the gas in the control chamber 20 is discharged through the control port 22, and it can be discharged in a very short time. In this invention, the conduction time of the exhaust control solenoid valve 60 is extended, and the conduction time of the exhaust control solenoid valve 60 is controlled based on the gas pressure value monitored by the gas pressure sensor 66, so as to ensure that the residual pressure in the valve chamber is discharged.

[0048] In some embodiments, both the exhaust control solenoid valve 60 and the air pressure sensor 66 are connected to the electronic control unit (ECU). Thus, the ECU can control the exhaust control solenoid valve 60 to open based on a brake release signal (e.g., releasing the brake pedal), and control the opening time of the exhaust control solenoid valve 60 based on the air pressure value monitored by the air pressure sensor 66, thereby accurately and conveniently venting the residual pressure in the valve chamber when the brake is released.

[0049] In some embodiments, the exhaust control solenoid valve 60 is a normally closed solenoid valve. That is, when not energized, the exhaust control solenoid valve 60 remains closed; when energized, the valve chamber of the exhaust control solenoid valve 60 is open, allowing gas to pass through.

[0050] Figure 2 The structural principle of the axle braking module is shown, with the air intake path in the electronically controlled braking state indicated; combined with... Figure 1 and Figure 2 As shown, in some embodiments, the bridge braking module further includes:

[0051] The intake control solenoid valve 70 is connected to the control air source 22' and the control port 22;

[0052] When the brake is released, the intake control solenoid valve 70 is closed;

[0053] In electric braking mode, intake control solenoid valve 70 is turned on, and exhaust control solenoid valve 60 is turned off.

[0054] The intake control solenoid valve 70 can be connected to the control air source 22'. In the electric braking state, the intake control solenoid valve 70 is turned on, so that the control gas from the control air source 22' enters the control chamber 20 through the first intake path P3 (control air source 22' → intake control solenoid valve 70 → control port 22), and acts on the relay piston 10, causing the relay piston 10 to press down, opening the channel between the air inlet 82 and the air outlet 84 of the bridge braking module, so that the braking gas from the air inlet 82 flows through the braking chamber 30 to the air outlet 84, and further flows through the air outlet 84 to the brake chamber 84', thereby achieving braking.

[0055] Among them, the control air source 22' is another air source different from the foot brake valve. It is connected to the control air source 22' and the control port 22 through the intake control solenoid valve 70, replacing the control gas from the foot brake valve. It can achieve the following: according to different braking requirements, the pressure of the control gas output by the control air source 22' is adjusted, so that the pressure of the brake gas output by the outlet 84 is adjusted accordingly, so that the vehicle braking is more adapted to the actual working conditions and the vehicle braking safety and effectiveness are improved.

[0056] In addition, a sensor for detecting air pressure can be installed in the pipeline connecting the air outlet 84 to the brake chamber 84', and connected to the electronic control unit (ECU) to monitor the brake air pressure delivered to the brake chamber 84'.

[0057] Furthermore, Figure 3 The structural principle of the axle braking module is shown, with the air intake path marked under standby braking conditions; combined with Figures 1 to 3 As shown, in some embodiments, the bridge braking module further includes:

[0058] The air intake standby solenoid valve 90 is connected to the foot brake valve 22” and the control port 22;

[0059] In the brake release state and the electric control brake state, the intake standby solenoid valve 90 is closed;

[0060] In standby braking mode, the intake standby solenoid valve 90 is open, while the intake control solenoid valve 70 and the exhaust control solenoid valve 60 are closed.

[0061] In braking mode, if the EBS electronic control malfunctions, the solenoid valve cannot operate. The intake backup solenoid valve 90 connects the air outlet of the foot brake valve 22” and the control port 22. The braking control air pressure from the foot brake valve is used to achieve air intake of the control chamber 20 through the second air intake path P4 (foot brake valve 22” → intake backup solenoid valve 90 → control port 22).

[0062] Thus, by means of the intake backup solenoid valve 90, the axle braking module of the present invention has conventional braking control logic to ensure normal braking; at the same time, when the EBS electronic braking is operating normally, the intake backup solenoid valve 90 can be turned off during braking to adjust the braking control air pressure according to the actual braking needs of the vehicle.

[0063] In some embodiments, the intake control solenoid valve 70 is a normally closed solenoid valve, and the intake backup solenoid valve 90 is a normally open solenoid valve. Thus, under normal circumstances, the intake control solenoid valve 70 and the intake backup solenoid valve 90 are not energized, and the axle braking module of the present invention possesses conventional braking control logic based on the brake control air pressure of the foot brake valve. When EBS electric braking is required, the intake backup solenoid valve 90 is energized, and the energization and de-energization of the intake control solenoid valve 70 and the exhaust control solenoid valve 60 are reasonably controlled to effectively adjust the brake control air pressure.

[0064] In some embodiments, both the intake control solenoid valve 70 and the intake backup solenoid valve 90 are connected to the electronic control unit (ECU). Thus, the ECU can control the intake control solenoid valve 70 and the intake backup solenoid valve 90 based on relevant braking signals (e.g., pressing the brake pedal).

[0065] In the above embodiments, it should be noted that, in order to clearly illustrate the air path and control logic of the bridge braking module under various operating conditions such as brake release state, electric braking state, and standby braking state, Figures 1 to 3 The exhaust control solenoid valve 60, intake control solenoid valve 70, and intake backup solenoid valve 90 are shown externally mounted on the valve body of the axle brake module. In actual products, these components can be integrated into the valve body of the axle brake module. The figures shown should not be considered as limitations on the specific arrangement of the components of the axle brake module of this invention. All components of the axle brake module need to satisfy the connection relationships and control logic described in any of the above embodiments, so that the axle brake module, in addition to fulfilling the conventional functions of existing axle brake modules, can also achieve waterproof protection and release residual pressure in the valve cavity when the brake is released.

[0066] Furthermore, the term "purging" in this invention refers to reducing the residual gas pressure in the valve cavity to a reasonable threshold. For details, please refer to the description of the above embodiments, which will not be repeated here.

[0067] This invention also provides an electronic braking system (EBS) configured with an axle braking module as described in any of the above embodiments.

[0068] The Electronic Braking System (EBS) is equipped with the aforementioned axle braking module. In addition to fulfilling the conventional functions of existing electronic braking systems, it can also achieve waterproof protection, meet the requirements for underwater operation, improve the cleanliness of the vehicle's brake lines and the service life of brake components, and release residual pressure in the valve chamber when the brake is released to ensure the stability and reliability of the entire braking system and improve vehicle safety.

[0069] This invention also provides a braking control method for controlling an axle braking module as described in any of the above embodiments. The features and principles of the axle braking module described in any of the above embodiments can be applied to the braking control method embodiments. In the following braking control method embodiments, the features and principles of the axle braking module already explained will not be repeated.

[0070] Figure 4 This illustrates the main steps of a braking control method in one embodiment; see reference. Figure 4 and combined Figures 1 to 3 As shown, the braking control method provided in this embodiment of the invention includes:

[0071] S400, in response to the brake release signal, controls the exhaust control solenoid valve 60 to open until the gas in the valve chamber is exhausted.

[0072] A brake release signal is issued, for example, when the driver releases the brake pedal. In response to the brake release signal, the exhaust control solenoid valve 60 is turned on to help vent the valve chamber, and the exhaust control solenoid valve 60 remains turned on until the residual pressure in the valve chamber is exhausted.

[0073] In some embodiments, the bridge braking module further includes a pressure sensor 66 connected to the brake chamber 30; in response to the brake release signal, it further includes: monitoring the pressure value of the pressure sensor 66, and when the pressure value is detected to decrease to a preset pressure value, controlling the exhaust control solenoid valve 60 to shut off.

[0074] The pressure value of the pressure sensor 66 reflects the residual pressure in the valve chamber. When the pressure value of the pressure sensor 66 decreases to the preset pressure value (e.g., 0.05 bar, but not limited to this), it indicates that the gas in the valve chamber has been basically exhausted. At this time, the residual pressure inside the valve chamber is very small and can be ignored. Therefore, the exhaust control solenoid valve 60 can be turned off to end the exhaust process.

[0075] Furthermore, the braking control method can also control the bridge braking module to achieve the above-mentioned electric braking state, standby braking state, etc. For details, please refer to the description of the above embodiments, which will not be repeated here.

[0076] This invention also provides an electronic device for implementing the braking control method described in any of the above embodiments. The electronic device can be independently configured in a vehicle or integrated into a controller such as an electronic control unit (ECU) of the vehicle. The electronic device can take several forms, including the following.

[0077] Presented in the form of a functional (program) module architecture, it may include modules for implementing the various steps of the above-described braking control method, such as a module for implementing step S400.

[0078] In the form of a general-purpose computing device, it may include a processing unit and a storage unit. The storage unit stores executable instructions. When the executable instructions are executed by the processing unit, they implement the braking control method described in any of the above embodiments.

[0079] The storage unit may include programs / utilities with one or more program modules, including but not limited to: an operating system, one or more application programs, other program modules, and program data. The general-purpose computing device also includes a bus connecting the processing unit and the storage unit, as well as other platform components. This bus may include a storage unit bus, a peripheral bus, a graphics acceleration port, a processing unit bus, and other local area buses. The general-purpose computing device can also communicate with one or more external devices, other computing devices in the vehicle, networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks such as the Internet).

[0080] It is represented in the form of a storage medium, in which a program is stored, which, when executed, implements the braking control method described in any of the above embodiments.

[0081] The storage medium can be any tangible medium that contains or stores a program, specifically any combination of one or more readable media, which can be a readable signal medium or a readable storage medium. The program can be used or combined with an instruction execution system, apparatus, or device. The program can be executed entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device, for example, via the Internet using an Internet service provider.

[0082] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A bridge brake module, comprising a relay piston arranged in a valve cavity, the relay piston separating the valve cavity into a control cavity and a brake cavity, the control cavity being connected with a control port, the brake cavity being connected with an exhaust port; characterized in that the bridge brake module further comprising: a first check valve arranged in a first exhaust passage of the brake cavity leading to the exhaust port; a second check valve, the relay piston being provided with a second exhaust passage connecting the control cavity and the brake cavity, the second check valve being arranged in the second exhaust passage; an exhaust control solenoid connected with the control port; in a brake release state, gas in the brake cavity pushes the first check valve to open the first exhaust passage, and pushes the second check valve to open the second exhaust passage, and the exhaust control solenoid is open; wherein the opening pressure of the second check valve is less than the opening pressure of the first check valve.

2. The bridge brake module of claim 1, wherein, further comprising: a gas pressure sensor connected with the brake cavity; in the brake release state, the exhaust control solenoid is open, and the gas pressure value of the gas pressure sensor is reduced to a preset gas pressure value.

3. The bridge brake module of claim 2, wherein, the exhaust control solenoid and the gas pressure sensor are connected with an electronic control unit.

4. The bridge brake module of claim 1, wherein, the exhaust control solenoid is a normally closed solenoid.

5. The bridge brake module of claim 1, wherein, further comprising: an intake control solenoid connected with a control gas source and the control port; in the brake release state, the intake control solenoid is closed; in an electrically controlled brake state, the intake control solenoid is open, and the exhaust control solenoid is closed.

6. The bridge brake module of claim 5, wherein, further comprising: an intake backup solenoid connected with a foot brake valve and the control port; in the brake release state and the electrically controlled brake state, the intake backup solenoid is closed; in a pressure standby brake state, the intake backup solenoid is open, and the intake control solenoid and the exhaust control solenoid are closed.

7. The bridge brake module of claim 6, wherein, the intake control solenoid is a normally closed solenoid, and the intake backup solenoid is a normally open solenoid.

8. The bridge brake module of claim 6, wherein, the intake control solenoid and the intake backup solenoid are connected with the electronic control unit.

9. An electronic braking system characterized by, the bridge brake module is configured as claimed in any one of claims 1-8.

10. A brake control method characterized by, a method for controlling the bridge brake module as claimed in any one of claims 1-8, comprising: in response to a brake release signal, controlling the exhaust control solenoid to open until the gas in the valve cavity is exhausted.

11. The brake control method according to claim 10, characterized by, the bridge brake module further comprises a gas pressure sensor connected with the brake cavity; in response to the brake release signal, the method further comprises: monitoring the gas pressure value of the gas pressure sensor, and when the monitored gas pressure value is reduced to a preset gas pressure value, controlling the exhaust control solenoid to close.

12. An electronic device, comprising: a method for implementing the brake control method as claimed in claim 10 or 11.

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