Novel double-brake device and brake system
By combining the vacuum braking assembly with the AEBS braking assembly to form a dual braking system, the problem of power assist motor system failure is solved, ensuring that the vehicle can still brake normally when any braking method fails, thus improving the reliability and safety of the braking system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHAOQING YUANSHENG INTELLIGENT AUTO PARTS CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-17
AI Technical Summary
In existing braking devices, the power assist motor system is prone to jamming, leading to power assist failure and ineffective braking, which poses a safety hazard.
The system employs an axial connection between a vacuum braking assembly and an AEBS braking assembly, combined with an oil reservoir, to provide dual braking methods. If one braking method fails, the other can still function normally, ensuring dual braking protection for the vehicle.
It improves the reliability and safety of the braking system and reduces the risk of accidents caused by braking failure.
Smart Images
Figure CN224131040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive braking technology, specifically to a novel dual-braking device and braking system. Background Technology
[0002] The braking system is a crucial component of a vehicle's braking system. It primarily consists of a main brake pump and a power assist motor. The power assist motor assists the brake pump, enabling it to generate greater or easier hydraulic pressure, allowing the user to easily brake by pressing the foot pedal. However, in existing braking systems, the power assist motor system is prone to jamming, causing a loss of power and making it impossible to brake easily with the foot pedal. In other words, if the power assist motor system fails while the vehicle is in motion, it will be impossible to press the foot pedal for emergency braking, potentially leading to a safety accident. Utility Model Content
[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a new type of dual braking device and braking system, which aims to solve the technical problem of ineffective braking caused by motor assist failure in the existing braking assembly.
[0004] To address the aforementioned technical problems, in a first aspect, this application provides a novel dual-braking device, comprising: a vacuum braking assembly, an AEBS braking assembly, and an oil reservoir. The vacuum braking assembly is axially connected to the AEBS braking assembly. The oil reservoir is disposed around the periphery of the AEBS braking assembly. The vacuum braking assembly includes a brake push rod and a thrust member connected to one end of the brake push rod. The AEBS braking assembly includes a cylinder, an oil cylinder, and a piston disposed within the oil cylinder. One end of the thrust member extends into the cylinder and abuts against the piston. The oil reservoir communicates with the oil cylinder. The thrust member has a pneumatic pressure receiving part at the end near the cylinder. The cylinder has an air inlet and an air outlet, and the oil cylinder has an oil outlet.
[0005] Furthermore, the air pressure receiving part has a groove structure, and the groove structure is connected to the inner cavity of the cylinder.
[0006] Furthermore, the vacuum braking assembly also includes a vacuum drum, which includes a first chamber and a second chamber separated by a partition. The other end of the thrust member extends into the first chamber, and the brake push rod is connected through the partition. The vacuum drum is also provided with an air extraction hole communicating with the first chamber.
[0007] Furthermore, it also includes a protective component, which is located at the end of the vacuum drum away from the AEBS braking assembly. The protective component has a third chamber that communicates with the second chamber.
[0008] Furthermore, the protective component includes an axially deformable portion, which is a corrugated ring.
[0009] Furthermore, one end of the brake push rod is also provided with a footrest, which is used to install a foot pedal.
[0010] Furthermore, the oil storage container includes an oil injection section and an oil storage section communicating with the oil injection section, and the oil cylinder is communicating with the oil storage section.
[0011] Secondly, this application also provides a braking system, including a novel dual braking device, a pneumatic device, a displacement sensor, and a controller as described in the first aspect, wherein the pneumatic device is used to extract air from a vacuum drum and / or to blow air into a cylinder.
[0012] Furthermore, the pneumatic device includes an air extraction device and an air blowing device. The air extraction device is used to extract air from the vacuum drum, and the air blowing device is used to blow air into the cylinder.
[0013] Compared to existing technologies, this utility model presents a novel dual-braking device comprising a vacuum braking assembly, an AEBS braking assembly, and an oil reservoir. The vacuum braking assembly and the AEBS braking assembly are axially connected. The oil reservoir is located around the AEBS braking assembly. The vacuum braking assembly includes a brake push rod and a thrust member connected to one end of the push rod. The thrust member has a pneumatic pressure receiving part at its end near the cylinder. The AEBS braking assembly includes a cylinder, a hydraulic cylinder, and a piston located within the hydraulic cylinder. One end of the thrust member extends into the cylinder and abuts against the piston. The cylinder has an air inlet and an air outlet, and the hydraulic cylinder has an oil outlet. The oil reservoir communicates with the hydraulic cylinder. This application employs a dual-braking design combining a vacuum braking assembly and an AEBS braking assembly. When one braking method malfunctions or its performance degrades, the other braking method can still function normally, providing dual braking protection for the vehicle. This significantly improves the reliability and safety of the braking system and reduces the risk of accidents caused by braking failure. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of a novel dual braking device according to an embodiment of this application;
[0015] Figure 2 This is a three-dimensional structural diagram of a novel dual braking device in one embodiment of this application;
[0016] Figure 3 This is a schematic diagram of the braking system in one embodiment of this application. Detailed Implementation
[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0018] 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.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated 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 connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] like Figure 1-3 This utility model provides a novel dual braking device, including a vacuum braking assembly 100, an AEBS braking assembly 200, and an oil reservoir 300. The vacuum braking assembly 100 is axially connected to the AEBS braking assembly 200, and the oil reservoir 300 is disposed on the periphery of the AEBS braking assembly 200.
[0021] In one embodiment, the vacuum braking assembly 100 includes a brake push rod 110, a thrust member 120 connected to one end of the brake push rod 110, and a vacuum drum 130. The vacuum drum 130 includes a first chamber 131 and a second chamber 133 separated by a partition 132. The other end of the thrust member 120 extends to the first chamber 131. The brake push rod 110 is connected through the partition 132. The vacuum drum 130 is also provided with an air extraction hole 134 communicating with the first chamber 131.
[0022] In addition, one end of the brake push rod 110 is also provided with a footrest 500, which is used to install the foot pedal for easy operation by the driver.
[0023] In one embodiment, the AEBS braking assembly 200 includes a cylinder 210, a hydraulic cylinder 220, and a piston 230 disposed within the hydraulic cylinder 220. One end of the thrust member 120 extends into the cylinder 210 and abuts against the piston 230. A pressure-receiving portion 121 is provided at the end of the thrust member 120 near the cylinder 210. The cylinder 210 is provided with an air inlet 211 and an air outlet 212, and the hydraulic cylinder 220 is provided with an oil outlet 221. The air outlet 212 can be opened to release air when the brake is released.
[0024] For example, the pneumatic pressure receiving part 121 has a groove structure, which communicates with the inner cavity of the cylinder 210. This makes the pneumatic pressure receiving part 121 more evenly stressed.
[0025] In one embodiment, the oil storage container 300 includes an oil filling section 310 and an oil storage section 320 communicating with the oil filling section 310. The oil cylinder 220 is communicating with the oil storage section 320. The oil filling section 310 is used to fill hydraulic oil, and the oil storage section 320 is used to store hydraulic oil, thereby providing a stable supply of hydraulic oil to the oil cylinder.
[0026] In one embodiment, the novel dual-braking device further includes a protective member 400, which is located at the end of the vacuum drum 130 away from the AEBS braking assembly 200. The protective member 400 has a third chamber 410 that communicates with the second chamber 133. The protective member 400 includes an axially deformable portion 420, which is a corrugated ring capable of adapting to the axial movement of the components to a certain extent, thus providing cushioning protection and dust and water resistance.
[0027] This application also provides a braking system, including the aforementioned novel dual braking device, a pneumatic device, a displacement sensor, and a controller. The pneumatic device is used to extract air from the vacuum drum 130 and / or to blow air into the cylinder 210.
[0028] Specifically, the pneumatic device includes an air extraction device 600 and an air blowing device 700. The air extraction device 600 is used to extract air from the vacuum drum 130, and the air blowing device 700 is used to blow air into the cylinder 210. A displacement sensor is used to detect the displacement information of the brake push rod 110 or related components and transmit this information to the controller. Based on the received displacement information and other vehicle status information, the controller comprehensively judges and controls the operation of the pneumatic device to achieve precise control of the braking force. For example, it controls the air extraction device 600 to extract air from the vacuum drum 130 and controls the air blowing device 700 to blow air into the cylinder 210.
[0029] During braking, when the user presses the pedal, the brake push rod 110 moves accordingly. At this time, the displacement sensor sensitively detects the displacement change of the brake push rod 110 and immediately triggers a braking signal. Upon receiving the braking signal, the controller responds quickly, controlling the air extraction device 600 to begin working, extracting air from the vacuum drum 130. As air is continuously extracted, a vacuum or negative pressure environment gradually forms in the first chamber 131 of the vacuum drum 130. Under this pressure difference, the partition 132 and the brake push rod 110 are subjected to a force towards the first chamber 131, which in turn pushes against the thrust member 120. The thrust member 120, after being pushed, continues to push against the piston 230. When the piston 230 moves, it pushes out the hydraulic oil in the cylinder 220, which is then delivered to the brake caliper, thereby braking the wheels. Simultaneously, the controller also controls the air blower 700 to blow air into the cylinder 210 according to the braking signal. The blown air creates air pressure in the cylinder 210, which acts on the air pressure receiving part 121 on the thrust member 120, further pushing the piston 230. After being subjected to the dual pushing forces from the vacuum drum 130 side and the cylinder 210 side, the piston 230 continues to move and pushes the hydraulic oil in the oil cylinder 220 to the brake caliper, thereby achieving braking of the wheel.
[0030] Through the above process, the braking system of this application realizes the coordinated operation of two braking methods: vacuum negative pressure braking assist and AEBS braking assist, providing a more reliable and efficient guarantee for vehicle braking. When one braking method fails, the other braking method can still work normally, providing dual braking protection for the vehicle and greatly reducing the risk of accidents caused by braking failure.
[0031] Obviously, the above are only preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A novel dual braking device characterized in that, include: The system comprises a vacuum braking assembly (100), an AEBS braking assembly (200), and an oil reservoir (300). The vacuum braking assembly (100) is axially connected to the AEBS braking assembly (200). The oil reservoir (300) is located around the AEBS braking assembly (200). The vacuum braking assembly (100) includes a brake push rod (110) and a thrust member (120) connected to one end of the brake push rod (110). The AEBS braking assembly (200) includes a cylinder (210) and an oil reservoir. The cylinder (220) and the piston (230) disposed in the oil cylinder (220) are provided. One end of the thrust member (120) extends into the cylinder (210) and abuts against the piston (230). The oil storage container (300) is connected to the oil cylinder (220). The thrust member (120) is provided with a pneumatic pressure receiving part (121) at one end near the cylinder (210). The cylinder (210) is provided with an air inlet (211) and an exhaust port (212). The oil cylinder (220) is provided with an oil outlet (221).
2. The novel dual brake device as claimed in claim 1, wherein, The air pressure receiving part (121) is a groove structure, and the groove structure is connected to the inner cavity of the cylinder (210).
3. The novel dual brake device as claimed in claim 1, wherein, The vacuum braking assembly (100) further includes a vacuum drum (130), which includes a first chamber (131) and a second chamber (133) separated by a partition (132). The other end of the thrust member (120) extends to the first chamber (131), and the brake push rod (110) is connected through the partition (132). The vacuum drum (130) is also provided with an air extraction hole (134) communicating with the first chamber (131).
4. The novel dual brake device as claimed in claim 3, wherein It also includes a protective element (400), which is located at the end of the vacuum drum (130) away from the AEBS braking assembly (200). The protective element (400) has a third chamber (410) inside, which is connected to the second chamber (133).
5. The novel dual brake device as claimed in claim 4, wherein The protective component (400) includes an axially deformable part (420), which is a corrugated ring.
6. The novel dual brake device as claimed in claim 1, wherein, One end of the brake push rod (110) is also provided with a footrest (500), which is used to install the foot pedal.
7. The novel dual brake device as claimed in claim 1, wherein The oil storage container (300) includes an oil filling section (310) and an oil storage section (320) connected to the oil filling section (310), and the oil cylinder (220) is connected to the oil storage section (320).
8. A brake system characterized by, The invention includes a novel dual braking device, a pneumatic device, a displacement sensor, and a controller as described in any one of claims 1-7, wherein the pneumatic device is used to extract air from the vacuum drum (130) and / or to blow air into the cylinder (210).
9. The brake system of claim 8, wherein, The pneumatic device includes an air extraction device (600) and an air blowing device (700). The air extraction device (600) is used to extract air from the vacuum drum (130), and the air blowing device (700) is used to blow air into the cylinder (210).