Unpowered hydraulic damping equipment for large automobile

Abstract

The invention relates to the technical field of automobile assembly, and discloses large automobile unpowered hydraulic damping equipment which comprises a control system and a braking system. The braking system comprises a hydraulic damper, a transmission gear pair, a hub and a fixing plate, the fixing plate is located at the end of the axle, the mounting position of the fixing plate is fixed, the hydraulic damper is fixedly mounted on the fixing plate and is in transmission connection with the hub through the transmission gear pair, and the central axis of the hydraulic damper is parallel to the central line of the axle; through the coupling effect of the hydraulic damper and the transmission gear pair, effective control over the rotating speed of the wheels is achieved, a strong braking power source does not need to be additionally arranged, and therefore driving potential safety hazards and vehicle assembling, manufacturing and using cost are remarkably reduced.

Description

Technical Field

[0001] This invention relates to the field of automotive assembly technology, and in particular to a large-scale automotive non-powered hydraulic damping device. Background Technology

[0002] Currently, automotive braking systems commonly employ disc or drum friction braking, especially for large vehicles. These systems typically rely on high-pressure pneumatic drive to generate strong resistance through friction between the brake shoes and the brake drum, thus achieving vehicle deceleration. However, this braking method presents significant safety hazards in actual transportation operations, particularly when large trucks travel on mountain roads, long slopes, steep inclines, or other challenging terrain. Frequent and prolonged braking can lead to overheating of the wheel hubs or damage and locking of brake components, resulting in decreased braking performance and, in severe cases, tire blowouts, accidents, and endangering lives and property.

[0003] Furthermore, to avoid accidents caused by overheated brake drums, some users modify their vehicles by installing water tanks to cool the wheels. While this method can temporarily alleviate wheel overheating, prolonged water spraying can lead to water entering between the brake pads and brake drums, reducing the coefficient of friction and even causing brake failure, further increasing driving safety risks. Additionally, installing a water tank increases the vehicle's total load, leading to overloading and increased fuel consumption.

[0004] More importantly, existing friction braking systems make brake shoes and drums vulnerable parts with short service lives and high maintenance costs. Furthermore, the mass production of these components leads to energy waste. In addition, friction braking requires an engine-driven high-pressure air pump to generate high-pressure gas as a power source, increasing engine power consumption and fuel consumption. Although current automotive braking technology is mature, it cannot eliminate the driving safety hazards caused by the high temperatures generated by strong mechanical friction, nor can it reduce the high costs associated with vehicle assembly, manufacturing, and use. Summary of the Invention

[0005] The purpose of this invention is to provide a large-scale, non-powered hydraulic damping device for automobiles, which aims to solve or improve at least one of the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a large-scale automotive non-powered hydraulic damping device, comprising: Control system; The braking system includes a hydraulic damper, a transmission gear pair, a wheel hub, and a mounting plate. The mounting plate is located at the end of the axle and its mounting position is fixed. The hydraulic damper is fixedly mounted on the mounting plate. The hydraulic damper is connected to the wheel hub through the transmission gear pair, and the central axis of the hydraulic damper is parallel to the center line of the axle. An integrated wiring harness is used to connect the control system and the hydraulic damper.

[0007] Optionally, the hydraulic damper includes a body, a plurality of gear rotors arranged in parallel, and a rear cover; The gear rotor is installed in the cavity formed by the body and the rear cover, and forms a closed internal circulation system with the hydraulic oil flow channel provided in the rear cover.

[0008] Optionally, the hydraulic oil flow channel of the rear cover is equipped with an electric flow valve and an oil quantity compensation chamber.

[0009] Optionally, the transmission gear pair includes a driving gear and a driven gear; The driving gear is fixedly connected to one of the gear rotors of the hydraulic damper, and the driven gear is fixedly connected to the hub.

[0010] Optionally, a matching protective cover is installed on the fixing plate, and the protective cover covers the transmission gear pair.

[0011] Optionally, the control system includes a master brake controller, a foot brake pedal, a power supply, a vehicle computer, a parking button, and a brake indicator light; The foot brake pedal, power supply, vehicle computer, parking button, and brake indicator light are all electrically connected to the brake master controller via the integrated wiring harness.

[0012] Optionally, the brake master controller includes a central processing unit integrated module and multiple function ports.

[0013] Optionally, the foot brake pedal is electronic.

[0014] Optionally, the vehicle computer is applicable to driverless vehicles, autonomous vehicles, or new energy vehicles.

[0015] Optionally, the parking button adopts a one-button parking mode.

[0016] The present invention discloses the following technical effects: This invention achieves effective control of wheel speed through the coupling effect of hydraulic damper and transmission gear pair, eliminating the need for an external high-power braking power source, thereby significantly reducing driving safety hazards and vehicle assembly, manufacturing and usage costs.

[0017] This invention reduces the impact of high temperatures generated by mechanical friction on the braking system, extends the service life of the braking system and related components, and further reduces maintenance and replacement costs.

[0018] The braking control system of this invention is composed of electrical components as the control source of the hydraulic damper. It has a simple structure, low cost, high sensitivity, stable safety performance, convenient maintenance, and significantly reduced failure rate. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Fig. 1 This is a schematic diagram of the overall structure of the present invention; Fig. 2 This is a schematic diagram of the hydraulic damper structure of the present invention; Fig. 3 This is a schematic diagram of the transmission gear pair structure of the present invention; Fig. 4 This is a schematic diagram of the hydraulic oil flow channel structure of the present invention.

[0020] In the diagram: 11. Brake master controller; 12. Foot brake pedal; 13. Power supply; 14. Vehicle computer; 15. Parking button; 16. Brake indicator light; 17. Integrated wiring harness; 21. Hydraulic damper; 211. Engine body; 212. Gear rotor; 213. Rear cover; 214. Electric flow valve; 215. Oil compensation chamber; 22. Transmission gear pair; 221. Drive gear; 222. Driven gear; 23. Wheel hub; 24. Protective cover; 25. Mounting plate. Detailed Implementation

[0021] 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, and 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.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Reference Figs. 1 to 4 This invention provides a large-scale, non-powered hydraulic damping device for automobiles, comprising: Control system; The braking system includes a hydraulic damper 21, a transmission gear pair 22, a wheel hub 23, and a fixing plate 25. The fixing plate 25 is located at the end of the axle and its installation position is fixed (the plane of the fixing plate 25 is perpendicular to the axle axis). The hydraulic damper 21 is fixedly installed on the fixing plate 25. The hydraulic damper 21 is connected to the wheel hub 23 through the transmission gear pair 22, and the central axis of the hydraulic damper 21 is parallel to the center line of the axle. The wheel hub 23 is rolledly connected to the main shaft. Integrated wiring harness 17 is used to connect the control system and the hydraulic damper 21.

[0024] This invention is based on the macroscopic parameters (power, speed, torque, etc.) of the power transmitted by a liquid as it flows in a pipe, which change with the pressure of the liquid. The designed hydraulic damper 21 is coupled with the speed and torque difference generated by the transmission gear pair 22 and the wheel hub 23 to control the wheel speed. At the same time, the various functional electrical components of the braking control system work together to control the hydraulic damper 21 in real time, enabling the vehicle to achieve free braking performance.

[0025] In one embodiment of the present invention, the hydraulic damper 21 includes a body 211, a plurality of gear rotors 212 arranged in parallel, and a rear cover 213; The gear rotor 212 is installed in the cavity formed by the body 211 and the rear cover 213, and forms a closed internal circulation system with the hydraulic oil flow channel provided in the rear cover 213.

[0026] The hydraulic damper 21 adopts a multi-gear rotor 212 and a closed-loop system to improve the efficiency of braking torque transmission and system sealing, thereby enhancing braking smoothness and durability.

[0027] In one embodiment of the present invention, an electric flow valve 214 and an oil quantity compensation chamber 215 are provided on the hydraulic oil flow channel of the rear cover 213. The electric flow valve 214 is controlled by the brake control system, thereby controlling the rotational speed and power output torque of the hydraulic damper 21 in real time. Precise control of the hydraulic oil flow is achieved through the electric flow valve 214 and the oil quantity compensation chamber 215, further improving the braking response speed and adjustment accuracy to adapt to different road conditions and braking intensity requirements.

[0028] In one embodiment of the present invention, the transmission gear pair 22 includes a driving gear 221 and a driven gear 222; The driving gear 221 is fixedly connected to one of the gear rotors 212 of the hydraulic damper 21, and the driven gear 222 is fixedly connected to the hub 23.

[0029] The transmission gear pair uses a drive gear 221 and a driven gear 222 in combination, which has a compact structure, high transmission efficiency, and ensures that the braking torque is effectively transmitted to the wheels.

[0030] In one embodiment of the present invention, a matching protective cover 24 is installed on the fixing plate 25, and the protective cover 24 covers the transmission gear pair 22.

[0031] The protective cover 24 covers the transmission gear pair 22 to prevent dust and moisture from entering, extend the service life of the system, and improve reliability in harsh environments.

[0032] In one embodiment of the present invention, the control system includes a brake master controller 11, a foot brake pedal 12, a power supply 13, a vehicle computer 14, a parking button 15, and a brake indicator light 16. The foot brake pedal 12, power supply 13, vehicle computer 14, parking button 15 and brake indicator light 16 are all electrically connected to the brake master controller 11 via integrated wiring harness 17.

[0033] The braking control system fully utilizes electrical equipment. Through the integrated wiring harness 17, the brake master controller 11 processes the signals generated by the driver's operation of the foot brake pedal 12 and sends commands to each hydraulic damper 21 and brake indicator light 16 via each functional port to achieve automatic operation.

[0034] The control system integrates multiple modules such as the brake master controller 11, foot brake pedal 12, power supply 13, vehicle computer 14, parking button 15, and brake indicator light 16, realizing intelligent processing of braking signals and multi-mode braking control, improving human-machine interaction and system integration. The fully electrified braking control system has a simple structure, is easy to operate and has low manufacturing cost. It features safe and reliable performance, long service life, and convenient maintenance. Especially in frequent emergency braking operations, it is safe, reliable, and performs even better.

[0035] In one embodiment of the present invention, the brake master controller 11 includes a central processing unit integrated module and multiple functional ports. The brake master controller 11 employs a central processing unit integrated module to enhance signal processing capabilities and system scalability, supporting OTA upgrades and multi-sensor fusion control.

[0036] In one embodiment of the present invention, the foot brake pedal 12 is electronic. The electronic brake pedal offers sensitive response, eliminates mechanical wear, and improves driving comfort and braking accuracy.

[0037] In one embodiment of the present invention, the vehicle computer 14 is applicable to driverless vehicles, autonomous vehicles, or new energy vehicles. The vehicle computer 14 is adapted to driverless and new energy vehicles, supports seamless integration with the vehicle's main control system, and realizes integrated control of intelligent braking and energy recovery.

[0038] In one embodiment of the present invention, the parking button 15 adopts a one-button parking mode. The one-button parking mode simplifies the operation process, improves parking safety and convenience, and is suitable for urban congestion and ramp parking scenarios.

[0039] This invention eliminates a large number of vehicle components used in traditional automotive braking systems, such as air pumps, reservoirs, brake valves, high-pressure gas transmission pipelines, various pneumatic cylinders, brake shoes, brake drums, and related transmission mechanisms. In particular, the air pump, as the main driving power source, consumes at least 3k of engine power. Therefore, this invention reduces the engine load. Furthermore, traditional technologies suffer from complex wiring, frequent malfunctions, and short service life. Especially when the vehicle is subjected to emergency braking more than three times in succession, the air pressure drops rapidly, seriously affecting the stability of vehicle control. This invention can solve the problems of overheating and easy damage caused by traditional braking systems in large vehicles, which lead to driving safety hazards and energy waste.

[0040] When this invention is applied to an automotive driving system, each set of wheels includes an independent braking system and a control system to form a complete non-powered hydraulic damping braking device.

[0041] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 this invention, and are not intended to 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 invention.

[0042] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A large-scale, non-powered hydraulic damping device for automobiles, characterized in that, include: Control system; The braking system includes a hydraulic damper (21), a transmission gear pair (22), a wheel hub (23), and a fixing plate (25). The fixing plate (25) is located at the end of the axle and its installation position is fixed. The hydraulic damper (21) is fixedly installed on the fixing plate (25). The hydraulic damper (21) is connected to the wheel hub (23) through the transmission gear pair (22), and the central axis of the hydraulic damper (21) is parallel to the center line of the axle. An integrated wiring harness (17) is used to connect the control system and the hydraulic damper (21).

2. The large-scale automotive non-powered hydraulic damping device according to claim 1, characterized in that, The hydraulic damper (21) includes a body (211), multiple gear rotors (212) arranged in parallel, and a rear cover (213). The gear rotor (212) is installed in the cavity formed by the body (211) and the rear cover (213), and forms a closed internal circulation system with the hydraulic oil flow channel provided in the rear cover (213).

3. A large-scale automotive non-powered hydraulic damping device according to claim 2, characterized in that, The hydraulic oil flow channel of the rear cover (213) is equipped with an electric flow valve (214) and an oil quantity compensation chamber (215).

4. A large-scale automotive non-powered hydraulic damping device according to claim 2, characterized in that, The transmission gear pair (22) includes a driving gear (221) and a driven gear (222). The driving gear (221) is fixedly connected to one of the gear rotors (212) of the hydraulic damper (21), and the driven gear (222) is fixedly connected to the hub (23).

5. A large-scale automotive non-powered hydraulic damping device according to claim 1, characterized in that, A matching protective cover (24) is installed on the fixed plate (25), and the protective cover (24) covers the transmission gear pair (22).

6. A large-scale automotive non-powered hydraulic damping device according to claim 1, characterized in that, The control system includes a brake master controller (11), a foot brake pedal (12), a power supply (13), an on-board computer (14), a parking button (15), and a brake indicator light (16). The foot brake pedal (12), power supply (13), vehicle computer (14), parking button (15) and brake indicator light (16) are all electrically connected to the brake master controller (11) through the integrated wiring harness (17).

7. A large-scale automotive non-powered hydraulic damping device according to claim 6, characterized in that, The brake master controller (11) includes a central processing unit integrated module and multiple function ports.

8. A large-scale automotive non-powered hydraulic damping device according to claim 6, characterized in that, The foot brake pedal (12) is electronic.

9. A large-scale automotive non-powered hydraulic damping device according to claim 6, characterized in that, The vehicle computer (14) is applicable to driverless vehicles, autonomous vehicles, or new energy vehicles.

10. A large-scale automotive non-powered hydraulic damping device according to claim 6, characterized in that, The parking button (15) adopts a one-key parking mode.

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