Automobile air brake energy storage testing device

Abstract

This application relates to an automotive air brake energy storage testing device, belonging to the field of automotive air brake energy storage testing technology. It includes: an air reservoir having multiple independent air storage units; a piping system including a first pipe and multiple second pipes, each connected at one end to one of the air storage units and at the other end to the first pipe, with a switch control valve installed on the second pipes and an air inlet valve installed on the first pipes; and the air storage capacity of all air storage units is configured such that: the air storage capacity of all air storage units is an integer, at least one air storage unit has a storage capacity of 1L, and the total capacity of all air storage units connected to the first pipe is any integer in the range [1L, nL], where n is the total capacity of all air storage units in the air reservoir. When using this application, there is no need to repeatedly disassemble and reassemble the first and second pipes; the capacity connected to the first pipe is adjusted by the switch control valve, saving testing time.

Description

Technical Field

[0001] This application relates to the field of automotive air brake energy storage testing technology, and in particular to an automotive air brake energy storage testing device. Background Technology

[0002] Currently, the energy storage device of a motor vehicle, namely the air tank, should ensure that after the vehicle's braking system is actuated eight times in its full stroke, the remaining pressure of the energy storage device should not be lower than the pressure required to achieve the specified emergency braking performance.

[0003] To select an air reservoir that meets testing standards, the appropriate capacity is typically calculated first, then the corresponding parts are prototyped, and finally, a full vehicle test is conducted to verify whether the selected air reservoir meets the standards. The typical testing method is as follows: inflate the air reservoir to the set pressure while stationary; disconnect the first air hose; depressurize by depressuring the brake pedal eight times during full-stroke braking; perform a ninth emergency braking test and record the results; repeat the above steps three times. However, if the selected capacity is found to be unsuitable during testing, a new capacity must be selected, the corresponding parts must be prototyped again, and the test must be repeated.

[0004] This testing method wastes the cost of parts manufacturing and requires repeated disassembly and reassembly of air steel pipes, making the work quite tedious. Summary of the Invention

[0005] This application provides an automotive air brake energy storage testing device to address the shortcomings of existing technologies, such as the air cylinder energy storage testing method, which wastes the cost of component manufacturing and requires repeated disassembly and reassembly of air hoses, making the process cumbersome.

[0006] This application provides an automotive air brake energy storage test device, including: an air storage cylinder having multiple independent air storage units;

[0007] The pipeline system includes a first pipeline and a plurality of second pipelines, one end of which is connected to each of the gas storage units and the other end of which is connected to the first pipeline. The second pipelines are equipped with switch control valves, and the first pipelines are also equipped with air inlet valves.

[0008] Furthermore, the gas storage capacity of all gas storage units is configured such that: the gas storage capacity of all gas storage units is an integer, at least one of the gas storage units has a gas storage capacity of 1L, and the total capacity of all gas storage units connected to the first pipeline is in the range of all integers in [1L, nL], where n is the total capacity of all gas storage units in the gas storage cylinder.

[0009] The above technical solution connects the gas storage units via a first and a second pipeline, and the series connection between the gas storage units is adjusted by a switch control valve. The gas source is stored in each gas storage unit through the inlet valve. At the start of the test, different switch control valves are opened according to the needs of each test operation, so that the gas storage capacity connected to the first pipeline can be adjusted based on 1L to meet the needs of each test. This eliminates the need for repeated disassembly and assembly, as well as the need for separate prototype preparation, thus saving costs.

[0010] In some embodiments, a controller is also included, which is connected to all the switch control valves and is used to control the opening and closing state of each of the switch control valves so that the total capacity of each gas storage unit connected to the first pipeline is adjusted in the range [1L, nL] in units of 1L.

[0011] The above technical solution involves setting up a controller to connect with all the switch control valves, thereby enabling intelligent operation to control and adjust the contents of the gas storage tank, making intelligent operation convenient.

[0012] In some embodiments, the gas storage cylinder includes eight gas storage units, wherein the eight gas storage units are:

[0013] One of the gas storage units is configured as a first gas storage room with a gas storage capacity of 50L;

[0014] The two gas storage units are configured as second gas storage chambers, and the gas storage capacity of each of the two second gas storage chambers is 20L.

[0015] One of the gas storage units is configured as a third gas storage room with a gas storage capacity of 10L;

[0016] One of the gas storage units is configured as a fourth gas storage room with a gas storage capacity of 5L;

[0017] The two gas storage units are configured as a fifth gas storage chamber, and the gas storage capacity of each of the two fifth gas storage chambers is 2L;

[0018] One of the gas storage units is configured as a sixth gas storage room, with a gas storage capacity of 1L.

[0019] The above technical solution involves configuring multiple gas storage units as a first, second, third, fourth, fifth, and sixth gas storage chamber. This allows the capacity of the gas storage cylinder to be adjusted to any value between 1L and 110L with an accuracy of 1L. During each experiment, the capacity of the gas storage cylinder can be quickly adjusted to meet the experimental requirements, thereby guiding the design of more precise parts. This approach not only meets regulatory requirements but also avoids excessive design redundancy, achieving precise cost reduction.

[0020] In some embodiments, the gas storage cylinder includes a seventh gas storage chamber, the seventh gas storage chamber having the same external structure as the sixth gas storage chamber, and the seventh gas storage chamber is provided with a partition plate to divide the inner cavity of the seventh gas storage chamber into the fourth gas storage chamber, two fifth gas storage chambers, and the sixth gas storage chamber.

[0021] The above technical solution combines the fourth gas storage chamber, two fifth gas storage chambers, and the sixth gas storage chamber into a seventh gas storage chamber. The seventh gas storage chamber has the same external structure as the sixth gas storage chamber, thereby effectively saving the space occupied by the gas storage cylinder and making the arrangement of multiple gas storage units compact.

[0022] In some embodiments, one end of the first pipeline is connected to an air intake pipe, which is used to connect to the first air steel pipe of the vehicle under test.

[0023] The above technical solution allows for easy connection of the first air steel pipe of the test vehicle to the first pipeline via the air intake pipe.

[0024] In some embodiments, one end of the first pipeline is connected to an air outlet pipe, which is used to connect to the brake main pipeline of the vehicle under test.

[0025] The above technical solution connects the first pipeline to the brake main pipeline of the vehicle under test via the air outlet pipe.

[0026] In some embodiments, an adjustable pressure relief valve is connected to the air intake pipe.

[0027] The above technical solution allows for the adjustment of the gas pressure in each gas storage unit according to demand by adjusting the pressure relief valve, so as to meet the pressure requirements in the gas storage tank. If the required pressure is exceeded, the pressure will be automatically released.

[0028] In some embodiments, a pressure sensor is connected to the vent pipe.

[0029] The above technical solution utilizes a pressure sensor to collect real-time pressure data within the gas storage tank during testing. This allows for real-time adjustment of the tank's capacity during the experiment. If the capacity fails to meet or exceeds the test requirements, the tank's capacity can be promptly adjusted for further verification, saving development time.

[0030] In some embodiments, a connecting tee is provided between the second pipeline and the first pipeline.

[0031] The above technical solution provides a simple connecting tee structure that facilitates connection between the first and second pipelines.

[0032] In some embodiments, the bottom of the gas storage cylinder is provided with a base plate.

[0033] The above technical solution allows for easy installation of the gas storage tank using a base plate.

[0034] The beneficial effects of the technical solution provided in this application include:

[0035] This application provides an automotive air brake energy storage testing device. The air tank contains multiple independent air storage units, which are connected via a first pipeline and a second pipeline. The units are connected in series via a switch control valve. Before testing, the intake valve and each switch control valve are opened to store air into each air storage unit. When the experiment begins, the intake valve and switch control valves are initially closed. Then, different switch control valves are opened according to the requirements of each experiment, allowing the air storage capacity connected to the first pipeline to be adjusted based on a 1L baseline to meet the needs of each experiment. This eliminates the need for repeated disassembly and assembly, and separate prototype fabrication, saving costs. Furthermore, if the capacity fails to meet the test requirements or exceeds them excessively, the air tank capacity can be gradually increased until the target requirement is met. At this point, the air tank capacity can serve as a design benchmark for the tested vehicle model, saving development time. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application;

[0038] Figure 2 A schematic diagram illustrating the structure of multiple gas storage chambers is provided for embodiments of this application;

[0039] Figure 3 This application provides a schematic diagram illustrating the structure of a regulating pressure relief valve in an embodiment of the present application.

[0040] Figure 4 This is a schematic diagram illustrating the structure of a pressure sensor provided in an embodiment of this application;

[0041] Figure label:

[0042] 1. Air tank; 10. Base plate; 20. First pipeline; 200. Inlet valve; 21. Second pipeline; 3. Switch control valve; 4. First air storage chamber; 5. Second air storage chamber; 6. Third air storage chamber; 60. Fourth air storage chamber; 61. Fifth air storage chamber; 62. Sixth air storage chamber; 7. Inlet pipe; 70. Adjusting pressure relief valve; 8. Outlet pipe; 80. Pressure sensor; 9. Connecting tee. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] This application provides an automotive air brake energy storage testing device. GB12676 requires that the vehicle energy storage device (air tank 1) ensure that after eight full-stroke actuations of the vehicle's braking system control device, the remaining pressure of the energy storage device should not be lower than the pressure required to achieve the specified emergency braking performance. Typically, the appropriate capacity is first selected through calculation, then the corresponding parts are prototyped, and finally, a full vehicle test is conducted to verify whether the selected air tank 1 meets the standard. However, if the capacity selection is found to be unsuitable during the test, a new capacity needs to be selected and the corresponding parts reproduced. During the experiment, the air hoses need to be repeatedly disassembled and reassembled, which is cumbersome. Furthermore, only one air pressure on the vehicle can be tested, which is insufficient for developmental testing to perform multiple air pressure tests.

[0045] Therefore, this application can solve the problem that the energy storage test method of the air storage cylinder 1 used in the related technology wastes the cost of parts trial production and requires repeated disassembly and reassembly of air steel pipes, which is quite cumbersome.

[0046] See Figures 1 to 4As shown, this application embodiment provides an automotive air brake energy storage test device, including: an air storage cylinder 1 and a pipeline system. The bottom of the air storage cylinder 1 is provided with a base plate 10. The air storage cylinder 1 is installed horizontally on the base plate 10. The air storage cylinder 1 is divided by partitions so that the air storage cylinder 1 has multiple independent air storage units. The pipeline system includes a first pipeline 20 and multiple second pipelines 21, one end of which is connected to each air storage unit and the other end of which is connected to the first pipeline 20. A switch control valve 3 is provided on the second pipeline 21. An air intake valve 200 is also provided on the first pipeline 20. The air storage capacity of all air storage units is configured such that: the air storage capacity of all air storage units is an integer, the air storage capacity of at least one air storage unit is 1L, and the total capacity of all air storage units connected to the first pipeline 20 is in the range of all integers in [1L, nL], where n is the total capacity of all air storage units in the air storage cylinder 1.

[0047] During the experiment, the intake valve 200 is connected to the air source, and one end of the first pipeline 20 is connected to the first air steel pipe of the test vehicle, while the other end is connected to the brake main pipeline of the test vehicle. First, both the end of the first pipeline 20 connected to the first air steel pipe of the test vehicle and the end connected to the brake main pipeline of the test vehicle are closed. The intake valve 200 and the switch control valve 3 are opened, allowing air to flow into each air storage unit until each air storage unit is filled with air according to its capacity. After each air storage unit has stored all the air, the switch control valve 3 is closed, and the intake valve 200 is disconnected from the air source. The two ends of the first pipeline 20 are connected to the first air steel pipe of the test vehicle and the brake main pipeline of the test vehicle, respectively. Finally, according to the experimental requirements, different switch control valves 3 are adjusted to open so that at least each air storage unit is connected to the first pipeline 20.

[0048] The vehicle is started, and testing begins. The vehicle is driven to the specified speed for a full-stroke emergency braking test, and the air pressure in the air reservoir 1 is collected for each test. After the first test, the intake valve 200 is opened, and this operation is repeated twice. If the test requirements are not met, the control valve 3 can be gradually adjusted to increase the capacity of the air reservoir 1 until the target requirement is met. At this point, the capacity of the air reservoir 1 can be used as the design benchmark for the tested vehicle model. In this application's experiment, the first pipeline 20 does not need to be repeatedly disassembled and reassembled. The connection and disconnection between the air reservoir 1 and the air source are achieved through the intake valve 200, saving testing time. The capacity and pressure of the air reservoir 1 can be adjusted as needed, eliminating the need for separate prototype manufacturing, thus saving costs. The air reservoir 1 guides the design of more precise parts, meeting regulatory requirements without excessive design redundancy, achieving precise cost reduction. Furthermore, during the experiment, after the vehicle is started, the vehicle speed, deceleration, and brake pedal force are also collected for each test.

[0049] In this application, a connecting tee 9 is connected between the second pipeline 21 and the first pipeline 20. The connection between the second pipeline 21 and the first pipeline 20 is effectively realized by the connecting tee 9. The air intake valve 200 is also connected to the air source and the first pipeline 20 through the connecting tee 9.

[0050] In this application, an air intake pipe 7 is connected to one end of the first pipe 20, which is used to connect to the first air steel pipe of the vehicle under test; an air outlet pipe 8 is connected to one end of the first pipe 20, which is used to connect to the brake main circuit of the vehicle under test. Both the air intake pipe 7 and the air outlet pipe 8 are made of flexible hoses. The first pipe 20 is connected to the air intake pipe 7 and the air outlet pipe 8 respectively through a connecting tee 9. Under the action of the air intake pipe 7 and the air outlet pipe 8, the first pipe 20 can be easily connected to the vehicle under test.

[0051] In this application, an adjusting pressure relief valve 70 is connected to the air inlet pipe 7 via a connecting tee 9. When the air inlet valve 200 and the switch control valve 3 are opened to allow air to enter each air storage unit, the adjusting pressure relief valve 70 is also in the open state. The adjusting pressure relief valve 70 can adjust the air pressure in each air storage unit as needed to meet the pressure requirements in the air storage cylinder 1. If the required pressure is exceeded, the pressure will be automatically released.

[0052] In this application, a pressure sensor 80 is connected to the air outlet pipe 8 via a connecting tee 9 to collect pressure data in the air storage cylinder 1 in real time during the experiment. This allows for real-time adjustment of the capacity in the air storage cylinder 1 during the experiment. If the capacity fails to meet the experimental requirements or exceeds them excessively, the capacity in the air storage cylinder 1 can be promptly adjusted for further verification, saving development time.

[0053] In this application, the automotive air brake energy storage test device includes a controller (not shown in the figure). The controller is connected to all the switch control valves 3 and is used to control the opening and closing states of each switch control valve 3, so that the total capacity of each air storage unit connected to the first pipeline 20 is adjusted in units of 1L within the range [1L, nL]. This effectively enables intelligent and automated operation of the air storage cylinder 1 during the experiment, which is very convenient. In addition, the controller is also connected to the intake valve 200, the regulating pressure relief valve 70, and the pressure sensor 80, further improving the ease of operation of the air storage cylinder 1.

[0054] In this application, the gas storage cylinder includes eight gas storage units. Among the eight gas storage units: one gas storage unit is set as the first gas storage chamber 4, with a gas storage capacity of 50L; two gas storage units are set as the second gas storage chambers 5, each with a gas storage capacity of 20L; one gas storage unit is set as the third gas storage chamber 6, with a gas storage capacity of 10L; one gas storage unit is set as the fourth gas storage chamber 60, with a gas storage capacity of 5L; two gas storage units are set as the fifth gas storage chambers 61, each with a gas storage capacity of 2L; and one gas storage unit is set as the sixth gas storage chamber 62, with a gas storage capacity of 1L.

[0055] By configuring multiple gas storage units as a first gas storage chamber 4, two second gas storage chambers 5, a third gas storage chamber 6, a fourth gas storage chamber 60, two fifth gas storage chambers 61, and a sixth gas storage chamber 62, the capacity of the gas storage cylinder 1 can be adjusted to any value between 1L and 110L with an accuracy of 1L. For example, if the gas storage cylinder 1 needs to achieve a capacity of 88L, then the first gas storage chamber 4, one second gas storage chamber 5, the third gas storage chamber 6, the fourth gas storage chamber 60, the fifth gas storage chamber 61, and the sixth gas storage chamber 62 need to be opened, while the remaining one second gas storage chamber 5 and the remaining one fifth gas storage chamber 61 can be closed. This allows the capacity of the gas storage cylinder 1 to be quickly adjusted to meet the experimental requirements during each experiment, thereby guiding the design of more precise parts that meet regulatory requirements without excessive design redundancy, achieving precise cost reduction.

[0056] In this application, the gas storage cylinder 1 includes a seventh gas storage chamber. The external structure of the seventh gas storage chamber is the same as that of the sixth gas storage chamber 6. A partition plate is provided inside the seventh gas storage chamber to divide the inner cavity of the seventh gas storage chamber into a fourth gas storage chamber 60 and two fifth gas storage chambers 61 and a sixth gas storage chamber 62.

[0057] Therefore, the external structure of the fourth gas storage chamber 60, the two fifth gas storage chambers 61, and the sixth gas storage chamber 62 is arranged to be the same as that of the third gas storage chamber 6, so that the gas storage cylinder 1 has a compact external structure and occupies little structural space.

[0058] The implementation principle of this application embodiment is as follows: During the experiment, the intake valve 200 is connected to the air source, one end of the first pipeline 20 is connected to the first air steel pipe of the test vehicle through the intake pipe 7, and the other end of the first pipeline 20 is connected to the brake main pipeline of the test vehicle through the exhaust pipe 8. The pressure sensor 80 on the exhaust pipe 8 detects the air pressure. When the pressure does not meet the requirements, the adjustable pressure relief valve 70 on the intake pipe 7 can be adjusted according to the requirements to meet the pressure requirements in the air storage tank 1. If the required pressure is exceeded, the pressure will be automatically released.

[0059] When the test officially begins, the air intake pipe 7 is closed to the first air steel pipe of the test vehicle, and the air outlet pipe 8 is closed to the brake main circuit of the test vehicle. The air intake valve 200 and the switch control valve 3 are opened to supply air to each air storage unit until the contents of each air storage unit meet the experimental requirements. The pressure sensor 80 on the air outlet pipe 8 detects the air pressure. If the requirements are not met, the adjustable pressure relief valve 70 on the air intake pipe 7 can be adjusted as needed. After the air supply in each air storage unit is exhausted, the switch control valve 3 is closed, and the air intake valve 200 is disconnected from the air supply. The two ends of the first pipe 20 are connected to the first air steel pipe of the test vehicle and the brake main circuit of the test vehicle, respectively.

[0060] After starting the vehicle, the test begins. The vehicle is driven to the specified speed for a full-stroke emergency braking test. The air pressure of the air reservoir 1 is collected for each test. After the first test, the intake valve 200 is opened, and the operation is repeated twice. If the test requirements are not met, the switch control valve 3 can be gradually adjusted to increase the capacity of the air reservoir 1 until the target requirement is met. At this point, the capacity of the air reservoir 1 can be used as the design benchmark for the tested vehicle model. In this application's experiment, there is no need to repeatedly disassemble and reassemble the first pipeline 20. The connection and disconnection between the air reservoir 1 and the air source are achieved through the intake valve 200, saving test time. The capacity and pressure of the air reservoir 1 can be adjusted as needed, eliminating the need for separate prototype manufacturing, thus saving costs. The air reservoir 1 guides the design of more precise parts, meeting regulatory requirements without excessive design redundancy, achieving precise cost reduction. In addition, during the experiment, after the vehicle is started, the vehicle speed, deceleration, and brake pedal force can also be collected for each test.

[0061] In the description of this application, it should be noted that the terms "upper," "lower," 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 application 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 application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral 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 communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0062] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0063] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A vehicle air brake energy storage testing device, characterized in that, include: The gas storage tank (1) has multiple independent gas storage units; The pipeline system includes a first pipeline (20) and a plurality of second pipelines (21) with one end connected to each of the gas storage units and the other end connected to the first pipeline (20). A switch control valve (3) is provided on the second pipeline (21), and an air inlet valve (200) is also provided on the first pipeline (20). Furthermore, the gas storage capacity of all gas storage units is configured such that: the gas storage capacity of all gas storage units is an integer, at least one of the gas storage units has a gas storage capacity of 1L, and the total capacity of all gas storage units connected to the first pipeline (20) is within the range of all integers in [1L, nL], where n is the total capacity of all gas storage units in the gas storage cylinder (1); the gas storage cylinder (1) includes four gas storage units, the four gas storage units including a first gas storage unit, a second gas storage unit, a third gas storage unit, and a fourth gas storage unit: The first gas storage unit is configured as a first gas storage room (4), and its gas storage capacity is 50L; The second gas storage unit is configured as two second gas storage chambers (5), each with a gas storage capacity of 20L; The third gas storage unit is configured as a third gas storage room (6), with a gas storage capacity of 10L; The fourth gas storage unit is provided with a partition plate to divide the inner cavity of the fourth gas storage unit into a fourth gas storage chamber (60), two fifth gas storage chambers (61), and a sixth gas storage chamber (62). The fourth gas storage chamber (60) has a gas storage capacity of 5L, the two fifth gas storage chambers (61) each have a gas storage capacity of 2L, and the sixth gas storage chamber (62) has a gas storage capacity of 1L. The external structure of the fourth gas storage unit is the same as that of the third gas storage chamber (6). The automotive air brake energy storage test device also includes a controller, which is connected to all the switch control valves (3) and is used to control the opening and closing state of each of the switch control valves (3) so that the total capacity of each air storage unit connected to the first pipeline (20) is adjusted in the range [1L, nL] in units of 1L; One end of the first pipeline (20) is connected to an air intake pipe (7), which is used to connect to the first air steel pipe of the vehicle under test; One end of the first pipeline (20) is connected to an air outlet pipe (8), which is used to connect to the brake main pipeline of the vehicle under test.

2. The automotive air brake energy storage testing device as described in claim 1, characterized in that: An adjustable pressure relief valve (70) is connected to the air intake pipe (7).

3. The automotive air brake energy storage testing device as described in claim 1, characterized in that: A pressure sensor (80) is connected to the air outlet pipe (8).

4. The automotive air brake energy storage testing device as described in claim 1, characterized in that: A connecting tee (9) connects the second pipeline (21) to the first pipeline (20).

5. The automotive air brake energy storage testing device as described in claim 1, characterized in that: The bottom of the gas storage cylinder (1) is provided with a base plate (10).

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