Unmanned vehicle X-shaped brake pipe system and unmanned vehicle

Abstract

The utility model discares the technical field of regional vehicle braking, and discloses an unmanned vehicle X type brake pipeline system and unmanned vehicle, and the unmanned vehicle X type brake pipeline system comprises left front wheel brake, right rear wheel brake, brake master cylinder, right front wheel brake, left rear wheel brake, hydraulic controller and brake pipeline. Brake pipeline includes first pipeline and second pipeline, and left front wheel brake is connected with right rear wheel brake through first pipeline, and right front wheel brake is connected with left front wheel brake through second pipeline. Hydraulic controller is connected with brake master cylinder, is used for receiving brake signal and can control first export and second export. The utility model can provide at least 50% brake force for vehicle when one of first pipeline and second pipeline fails, realizes the redundancy of brake system, improves the security of brake system. Moreover, through hydraulic controller, response speed and control precision are improved, and the safety of vehicle driving is ensured.

Description

Technical Field

[0001] This utility model relates to the field of vehicle braking technology, and in particular to an X-type braking pipeline system for unmanned vehicles. Background Technology

[0002] A braking system is a device that functions to decelerate, stop, or maintain a stopped state of moving parts. In a vehicle braking system, the arrangement of the brake lines has a crucial impact on braking performance and safety; therefore, the arrangement of the brake lines is particularly important.

[0003] Existing autonomous vehicle braking lines do not adequately consider braking redundancy. When a braking line malfunctions, the entire braking system cannot function properly, which can easily lead to safety accidents.

[0004] Therefore, there is an urgent need for an X-type braking pipeline system for unmanned vehicles and an unmanned vehicle in order to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an X-type braking pipeline system for unmanned vehicles and an unmanned vehicle, so as to solve the technical problem that the existing unmanned vehicle braking pipelines do not fully consider braking redundancy, and the entire braking system cannot work properly when the braking pipeline fails, which is prone to safety accidents.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On the one hand, an X-type braking pipeline system for an unmanned vehicle is provided, including: a left front wheel brake, a right rear wheel brake, a brake master cylinder, a right front wheel brake, a left rear wheel brake, a hydraulic controller, and brake pipelines;

[0008] The brake line includes a first line and a second line. The left front wheel brake is connected to the right rear wheel brake through the first line, and the right front wheel brake is connected to the left front wheel brake through the second line.

[0009] The brake master cylinder has a first outlet and a second outlet, the first pipeline is connected to the first outlet, and the second pipeline is connected to the second outlet;

[0010] The hydraulic controller is connected to the master brake cylinder and is used to receive braking signals and control the first outlet and the second outlet.

[0011] Optionally, the brake master cylinder further includes a first output pipe and a second output pipe, wherein the first output pipe is connected to the first pipeline and the second output pipe is connected to the second pipeline.

[0012] Optionally, the braking line further includes a first tee connector and a second tee connector, wherein the first line is connected to the first output pipe through the first tee connector, and the second line is connected to the second output pipe through the second tee connector.

[0013] Optionally, a sealing connection assembly is provided at the connection points of the first pipeline with the left front wheel brake, the right rear wheel brake, and the first tee connector, and at the connection points of the second pipeline with the right front wheel brake, the left rear wheel brake, and the second tee connector, the connection point of the first tee connector with the first output pipe, and the connection point of the second tee connector with the second output pipe.

[0014] Optionally, the bends in both the first and second pipelines are designed with smooth transitions.

[0015] Optionally, the brake line further includes a first hose and a second hose, one end of the first hose being connected to the left front wheel brake and the other end being connected to the first line; one end of the second hose being connected to the right front wheel brake and the other end being connected to the second line.

[0016] Optionally, the brake line further includes a third hose and a fourth hose, one end of the third hose being connected to the left rear wheel brake and the other end being connected to the second line; one end of the fourth hose being connected to the right rear wheel brake and the other end being connected to the first line.

[0017] Optionally, the system further includes pipe clamps for securing the first pipe and the second pipe. Optionally, the system also includes a brake fluid reservoir connected to the master cylinder, which is used to replenish hydraulic fluid to the master cylinder.

[0018] On the other hand, an unmanned vehicle is provided, including a chassis and an unmanned vehicle X-type braking pipeline system as described above, wherein the chassis includes longitudinal beams and crossbeams, and the unmanned vehicle X-type braking pipeline system is arranged along the longitudinal beams and the crossbeams.

[0019] The beneficial effects of this utility model are:

[0020] This invention proposes an X-type braking pipeline system for unmanned vehicles. The braking pipeline is divided into a first pipeline and a second pipeline. The left front wheel brake is connected to the right rear wheel brake via the first pipeline, and the right front wheel brake is connected to the left front wheel brake via the second pipeline. The master cylinder has a first outlet and a second outlet; the first pipeline connects to the first outlet, and the second pipeline connects to the second outlet. This creates two circuits in the braking pipeline, enabling a reasonable distribution of braking force between the front and rear axles and between the left and right wheels during normal braking operation, ensuring uniform braking performance. Furthermore, if one circuit fails, the other continues to function normally, providing at least 50% of the braking force, thus achieving redundancy in the braking system and effectively improving its safety. A hydraulic controller connected to the master cylinder receives braking signals and controls both the first and second outlets. Using a hydraulic controller to control the master cylinder results in a very short delay in issuing braking commands, enabling extremely fast response times and more precise control of the master cylinder, significantly improving vehicle safety.

[0021] The unmanned vehicle proposed in this utility model, by adopting the above-mentioned unmanned vehicle X-type braking pipeline system and arranging the above-mentioned unmanned vehicle X-type braking pipeline system along the longitudinal beam and the transverse beam, can reduce the bending and crossing of the braking pipeline, further reduce the flow resistance of the brake fluid in the pipeline, ensure that the brake fluid can reach each brake quickly and smoothly, further improve the response speed of the unmanned vehicle X-type braking pipeline system, and ensure the driving safety of the unmanned vehicle. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the X-type braking pipeline system for unmanned vehicles provided in this embodiment of the utility model;

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0025] In the picture:

[0026] 1. Left front wheel brake; 2. Right rear wheel brake; 3. Right front wheel brake; 4. Left rear wheel brake;

[0027] 5. Brake master cylinder; 51. First output pipe; 52. Second output pipe;

[0028] 6. Hydraulic controller;

[0029] 71. First pipeline; 72. Second pipeline; 73. First flexible hose; 74. Second flexible hose; 75. Third flexible hose; 76. Fourth flexible hose;

[0030] 81. First tee connector; 82. Second tee connector;

[0031] 9. Pipe clamp; 10. Brake fluid reservoir. Detailed Implementation

[0032] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0033] 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., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0034] 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 fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] like Figures 1 to 2As shown, this embodiment discloses an X-type braking pipeline system for an unmanned vehicle, including: a left front wheel brake 1, a right rear wheel brake 2, a master cylinder 5, a right front wheel brake 3, a left rear wheel brake 4, a hydraulic controller 6, and braking pipelines. The braking pipelines include a first pipeline 71 and a second pipeline 72. The left front wheel brake 1 is connected to the right rear wheel brake 2 via the first pipeline 71, and the right front wheel brake 3 is connected to the left front wheel brake 1 via the second pipeline 72. The master cylinder 5 has a first outlet and a second outlet. The first pipeline 71 is connected to the first outlet, and the second pipeline 72 is connected to the second outlet. The hydraulic controller 6 is connected to the master cylinder 5 and is used to receive braking signals and control the first and second outlets.

[0036] For example, the hydraulic controller 6 is an EHB electro-hydraulic brake. When the EHB electro-hydraulic brake receives a braking signal, it can directly control the brake master cylinder 5 to work. It responds quickly and controls the brake master cylinder 5 more precisely, which greatly improves the dynamic stability of the vehicle.

[0037] It is understood that the X-type braking pipeline system for unmanned vehicles proposed in this embodiment divides the braking pipeline into a first pipeline 71 and a second pipeline 72. The left front wheel brake 1 is connected to the right rear wheel brake 2 through the first pipeline 71, and the right front wheel brake 3 is connected to the left front wheel brake 1 through the second pipeline 72. The brake master cylinder 5 has a first outlet and a second outlet. The first pipeline 71 is connected to the first outlet, and the second pipeline 72 is connected to the second outlet. This creates two circuits in the braking pipeline. When the braking pipeline is working normally, it can achieve a reasonable distribution of braking force between the front and rear axles and the left and right wheels, ensuring uniformity of braking effect. Moreover, when one of the circuits, the first pipeline 71 and the second pipeline 72, fails, the other can still work normally, providing at least 50% of the braking force to the vehicle, achieving redundancy in the braking system and effectively improving the safety of the braking system. The hydraulic controller 6 is connected to the master cylinder 5 and is used to receive braking signals and control the first and second outlets. By using the hydraulic controller 6 to control the master cylinder 5, the braking command is issued with very little delay when braking is required, which can achieve extremely fast response speed and more precise control of the master cylinder 5, greatly improving the safety of vehicle driving.

[0038] like Figure 1 and Figure 2As shown, the brake master cylinder 5 also includes a first output pipe 51 and a second output pipe 52. The first output pipe 51 is connected to the first pipeline 71, and the second output pipe 52 is connected to the second pipeline 72. It can be understood that by splitting the oil outlet pipe of the active master cylinder into the first output pipe 51 and the second output pipe 52, if one of the first output pipe 51 and the second output pipe 52 fails, the other can be guaranteed to work normally, ensuring that at least one oil outlet pipe can supply brake fluid normally, further improving the safety redundancy of the unmanned vehicle's X-type brake piping system.

[0039] like Figure 2 As shown, the brake line also includes a first tee connector 81 and a second tee connector 82. The first line 71 is connected to the first output line 51 via the first tee connector 81, and the second line 72 is connected to the second output line 52 via the second tee connector 82. This configuration reduces the number of bends in the first line 71 and the second line 72, reduces the resistance to brake fluid flow, improves the response time of the X-type brake line system for unmanned vehicles, and further enhances vehicle driving safety.

[0040] Furthermore, in this embodiment, the bends in the first pipe 71 and the second pipe 72 are both smoothly transitioned. It is understood that the first pipe 71 and the second pipe 72 are not arranged with large-angle bends, and when bends are necessary, they are smoothly transitioned. This arrangement allows for better cooperation with the first tee connector 81 and the second tee connector 82, further preventing sharp bends in the first pipe 71 and the second pipe 72, further reducing the flow resistance of the brake fluid within the pipes, ensuring that the brake fluid can quickly and smoothly reach the brakes installed on each wheel, and improving the braking response speed.

[0041] To prevent brake fluid leakage under high pressure, in some embodiments, sealing connection components are provided at the connection points of the first pipeline 71 with the left front wheel brake 1, the right rear wheel brake 2, and the first tee connector 81, the connection points of the second pipeline 72 with the right front wheel brake 3, the left rear wheel brake 4, and the second tee connector 82, the connection points of the first tee connector 81 with the first output pipe 51, and the connection points of the second tee connector 82 with the second output pipe 52.

[0042] For example, in this embodiment, the sealing connection assembly includes a male connector and a female connector. Taking the first pipeline 71 and the left front wheel brake 1 as an example, one of the left front wheel brake 1 and the first pipeline 71 is provided with a male connector, and the other is provided with a female connector. When the first pipeline 71 is connected to the left front wheel brake 1, the male connector can be inserted into the female connector, and the pipeline is sealed through the tight fit between the connectors, effectively preventing brake fluid leakage at the pipeline connection. Moreover, the sealing connection assembly makes it easier to disassemble and install the brake pipeline, which is beneficial for the maintenance, repair, and replacement of the brake pipeline.

[0043] Furthermore, in some embodiments, the brake line further includes a first hose 73 and a second hose 74. One end of the first hose 73 is connected to the left front wheel brake 1, and the other end is connected to the first conduit 71; one end of the second hose 74 is connected to the right rear wheel brake 2, and the other end is connected to the second conduit 72. This configuration, when the left and right front wheels are responsible for steering, avoids vibrations in the left and right front wheel brakes 1 and 3 during rotation, which could lead to malfunctions in the first and second conduits 71 and 72, greatly improving the safety of the brake line. It is understood that the lengths of the first hose 73 and the second hose 74 are greater than the rotation distances of the left and right front wheels.

[0044] Furthermore, in some embodiments, to accommodate vehicles where the rear axle also handles steering, the brake lines further include a third hose 75 and a fourth hose 76. One end of the third hose 75 is connected to the left rear wheel brake 4, and the other end is connected to the second line 72; one end of the fourth hose 76 is connected to the right rear wheel brake 2, and the other end is connected to the first line 71. This arrangement prevents vibrations in the left and right rear wheel brakes 4 and 2 during rotation, which could cause malfunctions in the second line 72 and the first line 71, significantly improving the safety of the brake lines. It is understood that the lengths of the third hose 75 and the fourth hose 76 are greater than the rotation distance of the left and right rear wheels.

[0045] Furthermore, in some embodiments, the X-type braking pipeline system of the unmanned vehicle also includes a clamp 9, which is used to fix the first pipeline 71 and the second pipeline 72. It is understood that the vehicle body will continuously vibrate during driving. In order to further reduce the impact of vibration on the braking pipeline, the clamp 9 is used to fix the first pipeline 71 and the second pipeline 72 to prevent them from colliding with each other due to braking of the vehicle body and causing brake fluid leakage.

[0046] Furthermore, in some embodiments, such as Figure 1 As shown, the X-type braking system of the unmanned vehicle also includes a brake fluid reservoir 10, which is connected to the master cylinder 5. The brake fluid reservoir 10 is used to replenish hydraulic fluid to the master cylinder 5. It is understood that by providing the brake fluid reservoir 10, the master cylinder can be replenished with the required brake fluid at any time, ensuring that the brake lines have sufficient stroke and that braking is effective. Furthermore, the brake fluid reservoir 10 provides storage space for brake fluid, preventing abnormal pressure in the brake lines when braking is not needed, which could lead to incomplete brake release or even damage to components.

[0047] This embodiment also provides an unmanned vehicle, including a chassis and the aforementioned unmanned vehicle X-type brake piping system. The chassis includes longitudinal beams and crossbeams, and the unmanned vehicle X-type brake piping system is arranged along the longitudinal beams and crossbeams. It is understood that arranging the aforementioned unmanned vehicle X-type brake piping system along the longitudinal beams and crossbeams can reduce the bending and crossing of the brake piping, further reduce the flow resistance of the brake fluid in the piping, ensure that the brake fluid can quickly and smoothly reach each brake, further improve the response speed of the unmanned vehicle X-type brake piping system, and ensure the driving safety of the unmanned vehicle.

[0048] More specifically, when arranging the brake lines, attention must be paid to the distance between the brake lines and other components of the autonomous vehicle to ensure that the brake lines do not interfere with other components such as batteries, motors, and suspension systems when the autonomous vehicle vibrates during operation, and to ensure that the brake lines are not damaged due to friction or collision.

[0049] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An X-type braking pipeline system for an unmanned vehicle, characterized in that, include: Left front wheel brake (1), right rear wheel brake (2), brake master cylinder (5), right front wheel brake (3), left rear wheel brake (4), hydraulic controller (6) and brake lines; The brake line includes a first line (71) and a second line (72). The left front wheel brake (1) is connected to the right rear wheel brake (2) through the first line (71), and the right front wheel brake (3) is connected to the left front wheel brake (1) through the second line (72). The brake master cylinder (5) has a first outlet and a second outlet, the first pipeline (71) is connected to the first outlet, and the second pipeline (72) is connected to the second outlet; The hydraulic controller (6) is connected to the brake master cylinder (5) and is used to receive brake signals and control the first outlet and the second outlet.

2. The unmanned vehicle X-type braking pipeline system according to claim 1, characterized in that, The brake master cylinder (5) also includes a first output pipe (51) and a second output pipe (52), the first output pipe (51) being connected to the first pipeline (71), and the second output pipe (52) being connected to the second pipeline (72).

3. The unmanned vehicle X-type braking pipeline system according to claim 2, characterized in that, The braking line also includes a first tee connector (81) and a second tee connector (82). The first line (71) is connected to the first output pipe (51) through the first tee connector (81), and the second line (72) is connected to the second output pipe (52) through the second tee connector (82).

4. The unmanned vehicle X-type braking pipeline system according to claim 3, characterized in that, Sealing connection components are provided at the connection points of the first pipeline (71) with the left front wheel brake (1), the right rear wheel brake (2), and the first tee connector (81), the connection points of the second pipeline (72) with the right front wheel brake (3), the left rear wheel brake (4), and the second tee connector (82), the connection points of the first tee connector (81) with the first output pipe (51), and the connection points of the second tee connector (82) with the second output pipe (52).

5. The unmanned vehicle X-type braking pipeline system according to any one of claims 1-4, characterized in that, The bends in the first pipe (71) and the second pipe (72) are both smoothly transitioned.

6. The unmanned vehicle X-type braking pipeline system according to any one of claims 1-4, characterized in that, The brake line also includes a first hose (73) and a second hose (74). One end of the first hose (73) is connected to the left front wheel brake (1), and the other end is connected to the first line (71). One end of the second hose (74) is connected to the right front wheel brake (3), and the other end is connected to the second line (72).

7. The unmanned vehicle X-type braking pipeline system according to any one of claims 1-4, characterized in that, The brake line also includes a third hose (75) and a fourth hose (76). One end of the third hose (75) is connected to the left rear wheel brake (4), and the other end is connected to the second line (72). One end of the fourth hose (76) is connected to the right rear wheel brake (2), and the other end is connected to the first line (71).

8. The unmanned vehicle X-type braking pipeline system according to any one of claims 1-4, characterized in that, It also includes a pipe clamp (9) for securing the first pipe (71) and the second pipe (72).

9. The unmanned vehicle X-type braking pipeline system according to any one of claims 1-4 is characterized in that, It also includes a brake fluid reservoir (10), which is connected to the master cylinder (5) and is used to replenish hydraulic fluid to the master cylinder (5).

10. An unmanned vehicle, comprising a chassis and an unmanned vehicle X-type braking pipeline system as described in any one of claims 1-9, wherein the chassis includes longitudinal beams and crossbeams, and the unmanned vehicle X-type braking pipeline system is arranged along the longitudinal beams and the crossbeams.

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