Hydraulic power-assisted braking system and vehicle

Abstract

The hydraulic power-assisted braking system comprises a container, a brake cylinder, a brake part, a brake master cylinder, a power-assisted assembly and a sensor, the container is used for storing hydraulic fluid, and the brake cylinder is used for braking wheels; the brake master cylinder is connected between the container and the brake cylinder, and the brake part is connected with the brake master cylinder and used for driving the brake master cylinder to act so as to achieve brake driving of the brake cylinder. The boosting assembly is connected between the container and the brake cylinder, and the boosting assembly is used for increasing the pressure intensity of hydraulic fluid conveyed to the brake cylinder during starting so as to realize braking boosting; the sensor is arranged on at least one of the brake part, the brake master cylinder and the power assisting assembly. According to the hydraulic power-assisted braking system, the problems that in the prior art, pedal force and pedal stroke are large, pressure buildup at the front section of braking is not timely, braking response is delayed and the like are solved, space arrangement is more flexible, and installation and arrangement in a narrow space are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of braking, in particular to a hydraulic booster braking system and a vehicle. Background Art

[0002] Vehicles such as motorcycles and sleds are equipped with braking systems for braking. However, the braking systems in the prior art have problems such as large pedal force and pedal travel, untimely pressure buildup in the front stage of braking, delayed braking response, large space occupation, and poor flexibility in space layout. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the utility model proposes a hydraulic power-assisted braking system, which improves the problems in the prior art such as large pedal force and pedal travel, untimely pressure buildup in the front stage of braking, and delayed braking response. The spatial layout is also more flexible, which facilitates installation in cramped spaces.

[0005] The embodiment of the utility model also provides a vehicle including the above-mentioned hydraulic power-assisted braking system.

[0006] The hydraulic booster braking system of the utility model embodiment comprises:

[0007] A container and a brake cylinder, wherein the container is used to store hydraulic fluid and the brake cylinder is used to brake the wheels;

[0008] A brake member and a brake master cylinder, wherein the brake master cylinder is connected between the container and the brake cylinder, and the brake member is connected to the brake master cylinder and is used to drive the brake master cylinder to operate so as to realize the braking drive of the brake cylinder;

[0009] A booster assembly, the booster assembly being connected between the container and the brake cylinder, and the booster assembly being used to increase the pressure of the hydraulic fluid delivered to the brake cylinder when starting to achieve brake boosting;

[0010] A sensor is provided on at least one of the brake component, the master brake cylinder and the power assist assembly, and the sensor is used to generate a start signal for starting the power assist assembly when the master brake cylinder is actuated.

[0011] In some embodiments, there are multiple brake cylinders, and at least some of the brake cylinders are connected to the power assist assembly.

[0012] In some embodiments, the plurality of brake cylinders include a first pump group and a second pump group, each of the first pump group and the second pump group includes at least one brake cylinder, and the first pump group is connected to the master brake cylinder and is used to brake the front wheels of the vehicle, and the second pump group is connected to the power steering assembly and is used to brake the rear wheels of the vehicle.

[0013] In some embodiments, including:

[0014] a first pipeline, the first pipeline being connected between the brake master cylinder and the container, and the first pipeline being used for the hydraulic fluid in the brake master cylinder to flow into the container;

[0015] The second pipeline is connected between the brake master cylinder and the power-assisting assembly, and the second pipeline is used for supplying the hydraulic fluid pressurized by the power-assisting assembly to flow to the first pump group via the brake master cylinder.

[0016] In some embodiments, including:

[0017] a third pipeline, the third pipeline being connected between the container and the power-assisting assembly, and the third pipeline being used for the hydraulic fluid in the container to flow into the power-assisting assembly;

[0018] A fourth pipeline is connected between the container and the power-assisting assembly, and the fourth pipeline is used for returning the hydraulic fluid in the power-assisting assembly to the container when the power-assisting assembly is started.

[0019] In some embodiments, the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are hoses.

[0020] In some embodiments, the number of the brake cylinders in the first pump group is the same as the number of the brake cylinders in the second pump group.

[0021] In some embodiments, the sensor is disposed in the power-assisting assembly, and the sensor is used to monitor the pressure of the hydraulic fluid flowing from the container to the power-assisting assembly and generate the start signal when the pressure changes.

[0022] In some embodiments, the power assist assembly includes:

[0023] A driver, the driver is used to operate when the sensor generates the start signal to increase the pressure of the hydraulic fluid;

[0024] A power supply is electrically connected to the driver and is used to provide power to the driver.

[0025] The vehicle of the embodiment of the utility model includes the hydraulic power-assisted braking system as described in any of the above embodiments.

[0026] Beneficial effects: The hydraulic power-assisted braking system and vehicle of the embodiment of the utility model improve the problems in the prior art such as large pedal force and pedal stroke, untimely pressure buildup in the front stage of braking, and delayed braking response. The spatial layout is also more flexible, which facilitates installation and layout in a cramped space. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the hydraulic power-assisted braking system of an embodiment of the utility model.

[0028] Reference numerals:

[0029] 1- container; 2- brake cylinder; 3- brake parts; 4- brake master cylinder; 5- power assist assembly; 6- sensor; 7- first pipeline; 8- second pipeline; 9- third pipeline; 10- fourth pipeline; 11- first fluid supply pipeline; 12- second fluid supply pipeline; 13- power supply. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0031] like Figure 1 As shown, the hydraulic power-assisted braking system of the embodiment of the utility model includes a container 1, a brake cylinder 2, a brake member 3, a brake master cylinder 4, a power-assisted assembly 5 and a sensor 6.

[0032] The container 1 may be an oil cup, a liquid storage tank, etc., and the container 1 is used to store hydraulic fluid, and the hydraulic fluid may specifically be a liquid such as hydraulic oil. The brake cylinder 2 is used to achieve braking of the wheels. The number of brake cylinders 2 may be the same as the number of wheels of the vehicle. In some other embodiments, the brake cylinder 2 may be installed only at the wheels of a part of the vehicle. The brake cylinder 2 may be connected to the brake at the wheel. When in use, the action of the brake cylinder 2 may drive the brake to act, thereby achieving braking of the wheel.

[0033] The master brake cylinder 4 is connected between the container 1 and the brake cylinder 2, and the brake member 3 is connected to the master brake cylinder 4 and is used to drive the master brake cylinder 4 to operate to achieve the braking drive of the brake cylinder 2. Figure 1 As shown, the master brake cylinder 4 can be connected to the container 1 through a pipeline, and each brake cylinder 2 can also be connected to the master brake cylinder 4 through a corresponding pipeline. The brake member 3 can be a pedal, etc., and the brake member 3 can be connected to the left end of the master brake cylinder 4.

[0034] During use, the user can step on the brake member 3, thereby driving the master brake cylinder 4. At this time, the hydraulic fluid in the master brake cylinder 4 can flow back to the container 1 through the corresponding pipeline. Secondly, the hydraulic fluid in the master brake cylinder 4 will also flow to each brake sub-cylinder 2, thereby driving multiple brake sub-cylinders 2, and then using multiple brake sub-cylinders 2, multiple brakes can be driven respectively and the corresponding wheels can be braked.

[0035] The booster assembly 5 is connected between the container 1 and the brake cylinder 2, and the booster assembly 5 is used to increase the pressure of the hydraulic fluid delivered to the brake cylinder 2 during startup to achieve brake boosting. Figure 1 As shown, the power-assisting assembly 5 is hydraulic, and the power-assisting assembly 5 and the container 1 can be connected through a pipeline, and the power-assisting assembly 5 can also be connected to the brake cylinder 2 at each wheel. In some other embodiments, the power-assisting assembly 5 can also be connected to only a part of the brake cylinder 2. When in use, the power-assisting assembly 5 can increase the pressure of the hydraulic fluid delivered to the brake cylinder 2, thereby realizing hydraulic brake boosting.

[0036] The sensor 6 is provided on at least one of the brake member 3, the master brake cylinder 4, and the power assist assembly 5, and the sensor 6 is used to generate a start signal for starting the power assist assembly 5 when the master brake cylinder 4 is actuated. For example, the sensor 6 can be provided on the brake member 3, and when the brake member 3 is stepped on and relatively moves or displaced, the sensor 6 can monitor the position change of the brake member 3 and output a signal, and the output signal is the start signal, and the corresponding controller, processor and other devices can drive the power assist assembly 5 to act after receiving the start signal, so as to realize the boost pressurization of the hydraulic fluid delivered to the brake cylinder 2.

[0037] The hydraulic power-assisted braking system of the embodiment of the utility model can enhance the braking assistance by adding a hydraulic power-assisted assembly 5, thereby enabling the brake member 3 to achieve better braking when a smaller pedal force or pedal stroke is applied, and also avoiding the problems of untimely pressure buildup in the front stage of braking and delayed braking response.

[0038] In addition, the hydraulic power-assisting assembly 5 is independent of the container 1, the master brake cylinder 4, etc., so that the power-assisting assembly 5, the container 1, and the master brake cylinder 4 can be selectively installed at corresponding installation points according to actual needs, thereby improving the flexibility of the installation layout.

[0039] In some embodiments, there are multiple brake cylinders 2, and at least some of the brake cylinders 2 are connected to the power assist assembly 5. Figure 1As shown, there may be four wheels, and in this case, there may also be four brake cylinders 2, which are mounted one by one at the four wheels, and two of the four brake cylinders 2 may be connected to the power assist assembly 5 through corresponding pipelines. When in use, the power assist assembly 5 may realize power assist pressurization of the two brake cylinders 2 connected thereto.

[0040] In some embodiments, the plurality of brake cylinders 2 include a first pump group and a second pump group, each of the first pump group and the second pump group includes at least one brake cylinder 2, and the first pump group is connected to the master brake cylinder 4 and is used to brake the front wheels of the vehicle, and the second pump group is connected to the power steering assembly 5 and is used to brake the rear wheels of the vehicle.

[0041] For example, Figure 1 As shown, four brake cylinders 2 can be provided, two of which can form a first pump group, and the two brake cylinders 2 of the first pump group can be respectively installed at the two front wheels of the vehicle, and the other two brake cylinders 2 can form a second pump group, and the two brake cylinders 2 of the second pump group can be respectively installed at the two rear wheels of the vehicle.

[0042] The two brake cylinders 2 of the first pump group can be connected to the brake master cylinder 4 through the first fluid supply pipeline 11, and the two brake cylinders 2 of the second pump group can be connected to the power-assisting assembly 5 through the second fluid supply pipeline 12. The first fluid supply pipeline 11 and the second fluid supply pipeline 12 can both include a main pipe section and multiple branch pipe sections, one end of the main pipe section is connected to the brake assembly or the power-assisting assembly 5, the other end of the main pipe section is connected to one end of the multiple branch pipe sections, and the other end of the multiple branch pipe sections is connected to the above-mentioned multiple brake cylinders 2. In this way, the two front wheels and the two rear wheels can be braked respectively through the brake master cylinder 4 and the power-assisting assembly 5.

[0043] In some embodiments, the hydraulic power-assisted braking system includes a first pipeline 7 and a second pipeline 8. The first pipeline 7 is connected between the master brake cylinder 4 and the container 1, and the first pipeline 7 is used to supply the hydraulic fluid in the master brake cylinder 4 to flow into the container 1. The second pipeline 8 is connected between the master brake cylinder 4 and the power-assisted assembly 5, and the second pipeline 8 is used to supply the pressurized hydraulic fluid of the power-assisted assembly 5 to flow to the first pump group via the master brake cylinder 4.

[0044] For example, Figure 1 As shown, when the brake component 3 drives the master brake cylinder 4 to operate, the hydraulic fluid in the master brake cylinder 4 can flow back to the container 1 through the first pipeline 7, and the hydraulic fluid pressurized by the power-assisting assembly 5 can be delivered to the master brake cylinder 4 through the second pipeline 8, and then can be delivered to the two brake sub-cylinders 2 of the first pump group through the master brake cylinder 4, thereby, power-assisted braking of the two front wheels can be achieved, thereby realizing the braking needs of power-assisted braking of some wheels by means of the brake assembly.

[0045] It should be noted that when the brake member 3 is released, the brake member 3 can be reset under the action of elastic members such as springs on the master brake cylinder 4. At this time, the hydraulic fluid in the container 1 can also flow back to the master brake cylinder 4 through the first pipeline 7.

[0046] In some embodiments, the hydraulic power-assisted braking system includes a third pipeline 9 and a fourth pipeline 10. The third pipeline 9 is connected between the container 1 and the power-assisted assembly 5, and the third pipeline 9 is used to supply the hydraulic fluid in the container 1 to flow into the power-assisted assembly 5. The fourth pipeline 10 is connected between the container 1 and the power-assisted assembly 5, and the fourth pipeline 10 is used to supply the hydraulic fluid in the power-assisted assembly 5 to flow back to the container 1 when the power-assisted assembly 5 is started.

[0047] For example, Figure 1 As shown, during braking, the hydraulic fluid in the container 1 can be delivered to the power assist assembly 5 via the third pipeline 9, and the power assist assembly 5 can pressurize the hydraulic fluid and generate high-pressure fluid, a portion of which can be directly delivered to the second pump group of the two rear wheels via the second fluid supply pipeline 12, and another portion of which can be delivered to the master brake cylinder 4 via the second pipeline 8, and then delivered to the first pump group of the two front wheels via the brake assembly. Thus, the power assist braking drive of the first pump group and the second pump group is realized through the master brake cylinder 4 and the power assist assembly 5, respectively.

[0048] In some embodiments, the first pipeline 7, the second pipeline 8, the third pipeline 9, and the fourth pipeline 10 are hoses. The hoses may be made of rubber or the like, so that they can be bent according to actual conditions during assembly, facilitating the installation and position adjustment of the power assist assembly 5.

[0049] In some embodiments, the number of brake cylinders 2 in the first pump group is the same as the number of brake cylinders 2 in the second pump group. Figure 1 As shown, the first pump group and the second pump group may each include two brake cylinders 2. This is beneficial to achieve the balance of the hydraulic fluid distributed by the brake master cylinder 4 and the booster assembly 5.

[0050] In some embodiments, the sensor 6 is disposed in the power-assisting assembly 5 , and the sensor 6 is used to monitor the pressure of the hydraulic fluid flowing from the container 1 to the power-assisting assembly 5 and generate a start signal when the pressure changes.

[0051] For example, sensor 6 can be a pressure sensor, sensor 6 can be installed in the power-serving assembly 5, container 1 can be a closed type, when the hydraulic fluid in the master brake cylinder 4 flows into the container 1 under the action of the brake component 3, the pressure in the container 1 will increase, at this time, the hydraulic fluid in the container 1 will flow to the power-serving assembly 5 through the third pipeline 9, and sensor 6 will monitor the pressure change of the hydraulic fluid flowing to the power-serving assembly 5 through the third pipeline 9, and then can generate a corresponding start signal.

[0052] In some other embodiments, the sensor 6 may also be arranged at the inlet of the first pipeline 7, the brake master cylinder 4 and other locations, and the sensor 6 may also be other types of sensing and monitoring devices such as a flow meter.

[0053] In some embodiments, the power assist assembly 5 includes a driver and a power supply 13 . The driver is used to operate when the sensor 6 generates a start signal to increase the pressure of the hydraulic fluid. The power supply 13 is electrically connected to the driver and is used to provide power to the driver.

[0054] For example, Figure 1 As shown, the driver can be a motor, and the power-assisting assembly 5 also includes an impeller, which can be assembled in the power-assisting assembly 5 and connected to the driving shaft of the motor. The power supply 13 can be connected to the motor through a wire. When in use, the driver can drive the impeller to rotate, and the impeller can stir the hydraulic fluid in the power-assisting assembly 5, thereby playing a role in pressurization.

[0055] The following describes a vehicle according to an embodiment of the present invention.

[0056] The vehicle of the embodiment of the utility model includes a hydraulic booster brake system, which can be a hydraulic booster brake system as described in any of the above embodiments. The vehicle can be a three-wheeled motorcycle, a four-wheeled motorcycle, a sled, or other vehicles that need to be equipped with a hydraulic booster brake system.

[0057] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A hydraulic booster brake system, characterized in that: include: A container (1) and a brake cylinder (2), wherein the container (1) is used to store hydraulic fluid, and the brake cylinder (2) is used to brake the wheels; A brake component (3) and a brake master cylinder (4), wherein the brake master cylinder (4) is connected between the container (1) and the brake cylinder (2), and the brake component (3) is connected to the brake master cylinder (4) and is used to drive the brake master cylinder (4) to operate so as to realize braking drive of the brake cylinder (2); A booster assembly (5), the booster assembly (5) being connected between the container (1) and the brake cylinder (2), and the booster assembly (5) being used to increase the pressure of the hydraulic fluid delivered to the brake cylinder (2) when starting to achieve brake boosting; A sensor (6), wherein the sensor (6) is arranged on at least one of the brake component (3), the master brake cylinder (4), and the power assist assembly (5), and the sensor (6) is used to generate a start signal for starting the power assist assembly (5) when the master brake cylinder (4) is actuated.

2. The hydraulic booster brake system according to claim 1, characterized in that: There are multiple brake cylinders (2), and at least some of the brake cylinders (2) are connected to the power-assisting assembly (5).

3. The hydraulic booster brake system according to claim 2, characterized in that: The plurality of brake cylinders (2) include a first pump group and a second pump group, each of the first pump group and the second pump group includes at least one brake cylinder (2), and the first pump group is connected to the master brake cylinder (4) and is used to brake the front wheels of the vehicle, and the second pump group is connected to the power assist assembly (5) and is used to brake the rear wheels of the vehicle.

4. The hydraulic booster brake system according to claim 3, characterized in that: include: a first pipeline (7), the first pipeline (7) being connected between the brake master cylinder (4) and the container (1), and the first pipeline (7) being used for allowing the hydraulic fluid in the brake master cylinder (4) to flow into the container (1); A second pipeline (8), the second pipeline (8) is connected between the brake master cylinder (4) and the power-assisting assembly (5), and the second pipeline (8) is used to supply the hydraulic fluid pressurized by the power-assisting assembly (5) to flow to the first pump group via the brake master cylinder (4).

5. The hydraulic booster brake system according to claim 4, characterized in that: include: a third pipeline (9), the third pipeline (9) being connected between the container (1) and the power-assisting assembly (5), and the third pipeline (9) being used for allowing the hydraulic fluid in the container (1) to flow into the power-assisting assembly (5); A fourth pipeline (10), the fourth pipeline (10) is connected between the container (1) and the power-assisting assembly (5), and the fourth pipeline (10) is used to return the hydraulic fluid in the power-assisting assembly (5) to the container (1) when the power-assisting assembly (5) is started.

6. The hydraulic booster brake system according to claim 5, characterized in that: The first pipeline (7), the second pipeline (8), the third pipeline (9) and the fourth pipeline (10) are hoses.

7. The hydraulic booster brake system according to claim 3, characterized in that: The number of the brake cylinders (2) in the first pump group is the same as the number of the brake cylinders (2) in the second pump group.

8. The hydraulic booster brake system according to claim 1, characterized in that: The sensor (6) is arranged on the power-assisting assembly (5), and the sensor (6) is used to monitor the pressure of the hydraulic fluid flowing from the container (1) to the power-assisting assembly (5) and to generate the start signal when the pressure changes.

9. The hydraulic booster brake system according to any one of claims 1 to 8, characterized in that: The power assist assembly (5) comprises: A driver, the driver being used to operate when the sensor (6) generates the start signal to increase the pressure of the hydraulic fluid; A power supply (13), the power supply (13) is electrically connected to the driver and is used to provide power to the driver.

10. A vehicle, characterized in that: The invention comprises a hydraulic power-assisted braking system as claimed in any one of claims 1 to 9.

Images