Commercial vehicle sleeping berth safe use evaluation method and device and medium

Abstract

The invention discloses a commercial vehicle sleeping berth safety use evaluation method and device and a medium, belongs to the technical field of commercial vehicle sleeping berths, and aims to solve the problems that existing commercial vehicle novel turnover sleeping berths are generally manually inspected, the safety risk is large, the test cost and research and development time of the novel turnover sleeping berths are long, and the test efficiency is high. And the product landing success rate of engineers is not improved. The method comprises the following steps: performing simulation configuration of degree of freedom on a suspension system in a commercial vehicle cab to obtain a suspension mounting point of the cab; determining a first working condition parameter of a turnover sleeping berth system in a cab based on a first constraint condition of the suspension mounting point; determining a second working condition parameter of the turnover sleeping berth system in the cab based on a second constraint condition; based on a third constraint condition, determining a third working condition parameter of the turnover sleeping berth system in the cab; and according to the first working condition parameter, the second working condition parameter and the third working condition parameter, carrying out feasibility evaluation on the turnover sleeping berth system, and determining feasibility engineering data.

Description

Technical Field

[0001] The present application relates to the field of commercial vehicle sleeper berths, and in particular to a method, device and medium for evaluating the safe use of commercial vehicle sleeper berths. Background Art

[0002] With the gradual improvement of the transportation and logistics industry, the market demand and the safety requirements for drivers are also in urgent need of further improvement. Compared with traditional light trucks, the existing light trucks have newly added flip sleeper configurations, which improve driving comfort and increase rest time. This improves work efficiency and driving safety. As a new configuration, the safety and reliability of the sleeper is an important indicator for examining the sleeper configuration. At present, there is no effective test method for the safe use of flip sleepers to evaluate the safety performance of commercial vehicle sleepers.

[0003] The existing safety parameters and performance evaluation methods of commercial vehicle sleepers are basically manually inspected, which poses a great safety risk and is not conducive to the design and feasibility analysis of new flip sleepers. It is difficult to meet the data requirements of feasibility engineering, which greatly increases the test cost and R&D time of new flip sleepers. Summary of the invention

[0004] The embodiments of the present application provide a method, device and medium for evaluating the safe use of a commercial vehicle sleeper berth, which are used to solve the following technical problems: the new flip berths on existing commercial vehicles are mostly inspected manually, which poses a great safety risk, and the testing cost and development time of the new flip berths are long, which is not conducive to the success rate of engineers' product implementation.

[0005] The present application embodiment adopts the following technical solutions:

[0006] On the one hand, an embodiment of the present application provides a method for evaluating the safe use of a commercial vehicle sleeper berth, comprising: simulating the configuration of the degrees of freedom of a suspension system in a cab of a commercial vehicle to obtain the suspension mounting points of the cab; determining the first operating condition parameters of the flip sleeper system in the cab based on a first constraint condition of the suspension mounting point; determining the second operating condition parameters of the flip sleeper system in the cab based on a second constraint condition of the suspension mounting point; determining the third operating condition parameters of the flip sleeper system in the cab based on a third constraint condition of the suspension mounting point; and performing a feasibility evaluation on the flip sleeper system based on the first operating condition parameters, the second operating condition parameters and the third operating condition parameters to determine feasibility engineering data.

[0007] The embodiment of the present application can more comprehensively evaluate the feasibility and safety of the sleeper system by simulating the configuration of the degrees of freedom of the suspension system in the cab of a commercial vehicle and determining the working parameters of the flip sleeper system based on the different constraints of the suspension installation points. This helps to discover potential safety hazards and take corresponding measures to improve them, thereby improving the safety of the use of commercial vehicle sleepers. This helps to optimize the structure, size and installation method of the sleeper to meet safety requirements and improve the comfort of passengers. It can also reduce the risk of accidents caused by sleeper system failures or unreasonable designs by evaluating the safe use of the sleeper system. This is of great significance for protecting the lives of commercial vehicle drivers and passengers.

[0008] In a feasible implementation, the suspension system in the cab of a commercial vehicle is simulated and configured in terms of degrees of freedom to obtain the suspension mounting points of the cab, specifically comprising: converting the cab into a three-dimensional model to obtain a three-dimensional cab model; marking the relevant suspension stress area of ​​the three-dimensional cab model according to the first position coordinates of the flip berth system in the three-dimensional cab, and determining the suspension stress area as the suspension system; simulating the degree of freedom constraints of the suspension system under relevant mechanism mechanics to obtain the suspension mounting points in the three-dimensional driving model; wherein the number of the suspension mounting points is 4, and each of the suspension mounting points has degrees of freedom under independent motion.

[0009] In a feasible implementation, based on the first constraint condition of the suspension installation point, the first operating condition parameter of the flip sleeper system in the cab is determined, specifically including: performing a force analysis of the flip sleeper system in a user lying down simulation to determine the first load data of the flip sleeper system; based on the first load data, constraining the degree of freedom of the suspension installation point in the user lying down state to obtain the first constraint condition; based on the first load data and the first constraint condition, collecting data on the operating condition of the flip sleeper system to obtain the first operating condition parameter; wherein, the first operating condition parameter is the operating condition parameter in the user lying down state.

[0010] In a feasible implementation, based on the second constraint condition of the suspension installation point, the second operating condition parameters of the flip sleeper system in the cab are determined, specifically including: performing a user climbing simulation force analysis on the flip sleeper system to determine the second load data of the flip sleeper system; based on the second load data, constraining the degree of freedom of the suspension installation point under the user climbing state to obtain the second constraint condition; based on the second load data and the second constraint condition, collecting data on the operating condition of the flip sleeper system to obtain the second operating condition parameters; wherein, the second operating condition parameters are the operating condition parameters under the user climbing state.

[0011] In a feasible implementation, based on the third constraint condition of the suspension mounting point, the third operating condition parameters of the flip sleeper system in the cab are determined, specifically including: performing a vehicle bump simulation force analysis on the flip sleeper system to determine the third load data of the flip sleeper system; based on the third load data, constraining the degree of freedom of the suspension mounting point under the vehicle bump state to obtain the third constraint condition; based on the third load data and the third constraint condition, collecting data on the operating condition of the flip sleeper system to obtain the third operating condition parameters; wherein, the third operating condition parameters are the operating condition parameters under the vehicle bump state.

[0012] In a feasible implementation manner, the feasibility of the flip berth system is evaluated based on the first operating condition parameter, the second operating condition parameter and the third operating condition parameter to determine the feasibility engineering data, specifically including: comparing and calculating the first operating condition parameter with the first normal operating threshold to obtain a first comparison result; comparing and calculating the second operating condition parameter with the second normal operating threshold to obtain a second comparison result; comparing and calculating the third operating condition parameter with the third normal operating threshold to obtain a third comparison result; based on a preset operating condition weight rule, scoring the first comparison result, the second comparison result and the third comparison result under a feasibility operating state to obtain a comprehensive operating condition scoring result; performing a multi-level analysis on the comprehensive operating condition scoring result to determine the feasibility engineering data.

[0013] In a feasible implementation manner, a multi-level analysis is performed on the comprehensive working condition scoring result to determine the feasibility engineering data, specifically including: performing a feasibility analysis on the comprehensive working condition scoring result regarding the stiffness score to obtain stiffness feasibility data; and based on the stiffness feasibility data, determining the stiffness matching degree between various materials in the suspension system; performing a feasibility analysis on the strength score to obtain the strength feasibility data of the berth installation point and the berth fatigue strength feasibility data of the berth; and determining the feasibility engineering data on the suspension system and the flip berth system in the cab through the stiffness feasibility data, the stiffness matching degree, the berth installation point strength feasibility data and the berth fatigue strength feasibility data.

[0014] In a feasible implementation manner, the feasibility data of the berth installation point strength is feasibility data that meets the requirement of not exceeding the material yield strength; and the feasibility data of the berth fatigue strength is feasibility data that meets the number of uses under the safety definition.

[0015] In a second aspect, an embodiment of the present application also provides a device for evaluating the safe use of a commercial vehicle berth, the device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, so that the at least one processor can execute a method for evaluating the safe use of a commercial vehicle berth as described in any of the above-mentioned embodiments.

[0016] In the third aspect, an embodiment of the present application also provides a non-volatile computer storage medium, characterized in that the storage medium is a non-volatile computer-readable storage medium, and the non-volatile computer-readable storage medium stores at least one program, each of which includes instructions, and when the instructions are executed by a terminal, the terminal executes a commercial vehicle sleeper berth safety evaluation method described in any of the above-mentioned embodiments.

[0017] The present application provides a method, device and medium for evaluating the safe use of a commercial vehicle sleeper berth. Compared with the prior art, the embodiments of the present application have the following beneficial technical effects:

[0018] 1. By simulating the configuration of the degrees of freedom of the suspension system in the cab of a commercial vehicle and determining the working parameters of the flip sleeper system based on the different constraints of the suspension installation points, the feasibility and safety of the sleeper system can be more comprehensively evaluated. This helps to discover potential safety hazards and take corresponding measures to improve them, thereby improving the safety of commercial vehicle sleepers.

[0019] 2. The feasibility evaluation of the flip sleeper system based on the determined operating parameters can provide valuable reference for the design of the sleeper system. This helps to optimize the structure, size and installation method of the sleeper to meet safety requirements and improve passenger comfort.

[0020] 3. By evaluating the safe use of sleeper systems, the risk of accidents caused by sleeper system failures or unreasonable designs can be reduced. This is of great significance for protecting the lives of commercial vehicle drivers and passengers.

[0021] 4. A safe and reliable sleeper system helps improve the overall performance and reliability of commercial vehicles. Drivers can get better rest during long-distance driving, thereby improving driving attention and work efficiency and reducing the risks caused by fatigue driving.

[0022] 5. For commercial vehicle manufacturers and related enterprises, this evaluation method can provide decision support for product development and improvement. By evaluating the feasibility and safety of sleeper systems, enterprises can make more informed decisions and improve product quality and market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0024] Figure 1 A flow chart of a method for evaluating the safe use of a commercial vehicle sleeper provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of a three-dimensional model of a commercial vehicle cab provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the structure of a commercial vehicle sleeper berth safety use evaluation device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0028] It should be noted that the space of commercial light trucks is limited. The newly added sleeper berth uses the space above the top fairing and the seat, and the sleeper berth rotation axis is placed on the upper side of the side wall. The sleeper berth is located above the driver's head. It is very important to set the safety parameters of the sleeper berth and ensure that the feasibility design and analysis of the sleeper berth assembly can be carried out during the design stage.

[0029] Considering the service life of the light truck, the sleeper berth needs to have no permanent deformation of the berth frame and berth connecting plate after 9,000 km of reinforced road, and no cracking of the body in white (where the berth is installed). When people are resting, the berth guarantees sufficient support. Therefore, the use scenarios of the berth are set. Based on the market data collection, the use scenarios of the berth are defined as follows: 1. Normal rest, that is, people lying on the berth to rest; 2. When people get on and off the berth normally; 3. When the berth is driving on a bad road.

[0030] The present application embodiment provides a method for evaluating the safe use of a commercial vehicle sleeper berth, such as Figure 1 As shown, the safety use evaluation method for commercial vehicle sleeper berths specifically includes steps S101-S105:

[0031] S101, simulate the configuration of the degrees of freedom of a suspension system in a cab of a commercial vehicle to obtain suspension installation points of the cab.

[0032] Specifically, the cab of the commercial vehicle needs to be converted into a three-dimensional model to obtain a three-dimensional cab model.

[0033] Furthermore, according to the first position coordinates of the flip berth system in the three-dimensional cab, the three-dimensional cab model is subjected to identification processing of the suspension stress area, and the suspension stress area is determined as the suspension system.

[0034] Furthermore, the suspension system is simulated under the relevant mechanism mechanics to obtain the suspension mounting points in the three-dimensional driving model, wherein the number of suspension mounting points is 4, and each suspension mounting point has the degree of freedom under independent movement.

[0035] In one embodiment, Figure 2 A schematic diagram of a three-dimensional model of a commercial vehicle cab provided in an embodiment of the present application, such as Figure 2 As shown, the dotted line connection area in the three-dimensional cab model is the marked suspension force area, that is, the corresponding suspension system. Then, the suspension system is simulated under the freedom constraint of the relevant mechanism mechanics to obtain four suspension installation points 123 in the three-dimensional driving model, and these four suspension installation points are symmetrically distributed.

[0036] S102. Determine first operating parameters of the flip berth system in the cab based on a first constraint condition of the suspension installation point.

[0037] Specifically, a force analysis of a user lying down simulation is performed on the flip sleeper system to determine first load data of the flip sleeper system.

[0038] Furthermore, based on the first load data, the degree of freedom of the suspension installation point is restricted in a state where the user is lying down, thereby obtaining a first constraint condition.

[0039] Furthermore, based on the first load data and the first constraint condition, data of the operating condition of the flip sleeper system is collected to obtain a first operating condition parameter, wherein the first operating condition parameter is an operating condition parameter when the user is lying down.

[0040] In one embodiment, Figure 2 As shown, the degrees of freedom of the front and rear suspension mounting points 123 of the cab are constrained, that is, the first constraint condition when a person is resting normally, i.e., lying on the berth to rest, and then the vertical force (first load data) applied when the user is lying down is simulated, for example, FORCE is a vertical force of 980N, that is, simulating a 100Kg person lying on the berth, vertical 1G. Based on the first load data and the first constraint condition, the data of the operating condition of the flip berth system is collected to obtain the first operating condition parameters.

[0041] S103. Determine second operating parameters of the flip berth system in the cab based on a second constraint condition of the suspension installation point.

[0042] Specifically, a user climbing simulation force analysis is performed on the flip sleeper system to determine second load data of the flip sleeper system.

[0043] Furthermore, based on the second load data, the degree of freedom of the suspension installation point is constrained by the user's climbing state to obtain a second constraint condition.

[0044] Furthermore, based on the second load data and the second constraint condition, data of the operating condition of the flip berth system is collected to obtain a second operating condition parameter, wherein the second operating condition parameter is an operating condition parameter when the user is in a climbing state.

[0045] In one embodiment, Figure 2 As shown, the degrees of freedom of the front and rear suspension mounting points 123 of the cab are constrained, which is the second constraint condition when the sleeper is driving on a bad road, and then the vertical force (second load data) under the user climbing state is simulated, for example, FORCE is a vertical force of 1176N, that is, simulating a 100Kg person climbing up and down the sleeper, and the dynamic load coefficient is 1.2. Based on the second load data and the second constraint condition, the data of the operating condition of the flip sleeper system is collected to obtain the second operating condition parameters.

[0046] S104. Based on the third constraint condition of the suspension installation point, determine the third operating condition parameter of the flip berth system in the cab.

[0047] Specifically, a vehicle bump simulation force analysis is performed on the flip sleeper system to determine the third load data of the flip sleeper system.

[0048] Furthermore, based on the third load data, the degree of freedom of the suspension installation point is restricted under the vehicle bumping state to obtain a third constraint condition.

[0049] Furthermore, based on the third load data and the third constraint condition, data of the operating condition of the flip sleeper system is collected to obtain a third operating condition parameter, wherein the third operating condition parameter is an operating condition parameter under a bumpy state of the vehicle.

[0050] In one embodiment, in one embodiment, Figure 2 As shown, the degrees of freedom of the front and rear suspension mounting points 123 of the cab are constrained, which is the third constraint condition when people get on and off the berth normally, and then the vertical force (third load data) under the bumpy state of the vehicle is simulated, for example, FORCE is a vertical force of 3430N, that is, the bad road driving simulation state of a commercial light truck is performed. Based on the third load data and the third constraint condition, the data of the operating condition of the flip berth system is collected to obtain the third operating condition parameters.

[0051] S105. Conduct a feasibility evaluation on the flip berth system according to the first operating condition parameter, the second operating condition parameter and the third operating condition parameter, and determine feasibility engineering data.

[0052] Specifically, it is also necessary to compare and calculate the first operating condition parameter with the first normal operating threshold to obtain a first comparison result, compare and calculate the second operating condition parameter with the second normal operating threshold to obtain a second comparison result, and compare and calculate the third operating condition parameter with the third normal operating threshold to obtain a third comparison result.

[0053] Furthermore, based on a preset operating condition weight rule, the first comparison result, the second comparison result and the third comparison result are scored under a feasible operating state to obtain a comprehensive operating condition scoring result.

[0054] Furthermore, a multi-level analysis is performed on the comprehensive working condition scoring results to determine the feasibility engineering data. That is, it is necessary to perform a feasibility analysis on the comprehensive working condition scoring results in terms of stiffness score to obtain stiffness feasibility data. Based on the stiffness feasibility data, the stiffness matching between various materials in the suspension system is determined. A feasibility analysis is performed on the comprehensive working condition scoring results in terms of strength score to obtain feasibility data on the strength of the berth installation point of the flip berth system and feasibility data on the fatigue strength of the berth. Through the stiffness feasibility data, stiffness matching, feasibility data on the strength of the berth installation point and feasibility data on the fatigue strength of the berth, feasibility engineering data based on the suspension system and flip berth system in the cab are determined.

[0055] The feasibility data of the strength of the berth installation point is the feasibility data that meets the requirement of not exceeding the material yield strength. The feasibility data of the fatigue strength of the berth is the feasibility data that meets the number of uses under the safety definition.

[0056] As a feasible implementation method, after establishing the corresponding three working conditions, the feasibility of the sleeper system can be evaluated from four aspects: 1. Stiffness analysis (stiffness feasibility data); 2. Strength analysis of sleeper installation points (strength feasibility data of sleeper installation points, which must not exceed the material yield strength); 3. Fatigue strength of sleeper (feasibility of sleeper fatigue strength, which must meet the number of uses defined by safety); 4. Stiffness matching between systems (stiffness matching). At the same time, by setting target values ​​and simulating usage scenarios to establish feasibility engineering data requirements, the development time of sleepers is shortened, and engineers are quickly provided with optimization directions. This evaluation method can be used from product development to CAE simulation stage, which greatly saves test costs, improves the success rate of engineers' product landing, and enhances the competitiveness of products.

[0057] In addition, the present application embodiment also provides a commercial vehicle sleeper berth safety evaluation device 300, such as Figure 3 As shown, the safety use evaluation device 300 for a commercial vehicle sleeper specifically includes:

[0058] At least one processor 301. And a memory 302 in communication with the at least one processor 301. The memory 302 stores instructions that can be executed by the at least one processor 301, so that the at least one processor 301 can execute:

[0059] The suspension system in the cab of the commercial vehicle is simulated and configured with different degrees of freedom to obtain the suspension installation points of the cab;

[0060] Based on the first constraint condition of the suspension installation point, determining the first working condition parameter of the flip berth system in the cab;

[0061] Based on the second constraint condition of the suspension installation point, determining the second working condition parameter of the flip berth system in the cab;

[0062] Based on the third constraint condition of the suspension installation point, the third working condition parameter of the flip berth system in the cab is determined;

[0063] According to the first operating condition parameters, the second operating condition parameters and the third operating condition parameters, a feasibility evaluation is conducted on the flip berth system to determine feasibility engineering data.

[0064] The embodiment of the present application can more comprehensively evaluate the feasibility and safety of the sleeper system by simulating the configuration of the degrees of freedom of the suspension system in the cab of a commercial vehicle and determining the working parameters of the flip sleeper system based on the different constraints of the suspension installation points. This helps to discover potential safety hazards and take corresponding measures to improve them, thereby improving the safety of the use of commercial vehicle sleepers. This helps to optimize the structure, size and installation method of the sleeper to meet safety requirements and improve the comfort of passengers. It can also reduce the risk of accidents caused by sleeper system failures or unreasonable designs by evaluating the safe use of the sleeper system. This is of great significance for protecting the lives of commercial vehicle drivers and passengers.

[0065] Each embodiment in this application is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and non-volatile computer storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0066] The devices and media provided in the embodiments of the present application correspond one-to-one to the methods. Therefore, the devices and media also have similar beneficial technical effects as the corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the devices and media will not be repeated here.

[0067] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0068] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0069] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0070] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0071] The above describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0072] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the embodiments of the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application should be included in the scope of the claims of the present application.

Claims

1. A method for evaluating the safe use of a commercial vehicle sleeper berth, characterized in that: The method comprises: Performing a simulated configuration of the degrees of freedom of the suspension system in the cab of the commercial vehicle to obtain the suspension mounting points of the cab; Based on the first constraint condition of the suspension installation point, determining the first operating condition parameter of the flip berth system in the cab; Based on the second constraint condition of the suspension installation point, determining the second operating condition parameter of the flip berth system in the cab; Based on the third constraint condition of the suspension installation point, determining the third operating condition parameter of the flip berth system in the cab; According to the first operating condition parameter, the second operating condition parameter and the third operating condition parameter, a feasibility evaluation is performed on the flip berth system to determine feasibility engineering data.

2. A method for evaluating the safe use of a commercial vehicle sleeper berth according to claim 1, characterized in that: The suspension system in the cab of a commercial vehicle is simulated and configured with degrees of freedom to obtain the suspension installation points of the cab, specifically including: Converting the cab into a three-dimensional model to obtain a three-dimensional cab model; According to the first position coordinates of the flip berth system in the three-dimensional cab, marking the relevant suspension force area of ​​the three-dimensional cab model is performed, and the suspension force area is determined as the suspension system; The suspension system is subjected to a freedom constraint simulation under relevant mechanism mechanics to obtain the suspension mounting points in the three-dimensional driving model; wherein the number of the suspension mounting points is 4, and each of the suspension mounting points has a degree of freedom under independent motion.

3. A method for evaluating the safe use of a commercial vehicle sleeper berth according to claim 1, characterized in that: Based on the first constraint condition of the suspension installation point, the first operating condition parameter of the flip berth system in the cab is determined, specifically including: Performing a force analysis of the flip berth system simulating a user lying down to determine first load data of the flip berth system; According to the first load data, the degree of freedom of the suspension installation point is constrained in a state where the user lies down, so as to obtain the first constraint condition; Based on the first load data and the first constraint condition, data of the operating condition of the flip berth system is collected to obtain the first operating condition parameter; wherein the first operating condition parameter is the operating condition parameter when the user is lying down.

4. A method for evaluating the safe use of a commercial vehicle sleeper berth according to claim 1, characterized in that: Based on the second constraint condition of the suspension installation point, the second operating condition parameters of the flip berth system in the cab are determined, specifically including: Performing a user climbing simulation force analysis on the flip berth system to determine second load data of the flip berth system; According to the second load data, the degree of freedom of the suspension installation point is constrained by the user in a climbing state to obtain the second constraint condition; Based on the second load data and the second constraint condition, data of the operating condition of the flip berth system is collected to obtain the second operating condition parameters; wherein the second operating condition parameters are the operating condition parameters of the user in a climbing state.

5. A method for evaluating the safe use of a commercial vehicle sleeper berth according to claim 1, characterized in that: Based on the third constraint condition of the suspension installation point, the third working condition parameters of the flip berth system in the cab are determined, specifically including: Performing a vehicle bump simulation force analysis on the flip sleeper system to determine third load data of the flip sleeper system; According to the third load data, the degree of freedom of the suspension installation point is restricted in a vehicle bumping state to obtain the third constraint condition; Based on the third load data and the third constraint condition, data of the operating condition of the flip berth system is collected to obtain the third operating condition parameter; wherein the third operating condition parameter is the operating condition parameter of the vehicle under a bumpy state.

6. A method for evaluating the safe use of a commercial vehicle sleeper berth according to claim 1, characterized in that: According to the first operating condition parameter, the second operating condition parameter and the third operating condition parameter, a feasibility evaluation is performed on the flip berth system to determine feasibility engineering data, which specifically includes: Compare and calculate the first operating condition parameter with a first normal operating threshold to obtain a first comparison result; Compare and calculate the second operating condition parameter with a second normal operating threshold to obtain a second comparison result; Comparing and calculating the third operating condition parameter with a third normal operating threshold value to obtain a third comparison result; Based on a preset operating condition weight rule, the first comparison result, the second comparison result, and the third comparison result are scored under a feasible operating state to obtain a comprehensive operating condition scoring result; The comprehensive working condition scoring results are subjected to a multi-level analysis to determine the feasibility engineering data.

7. A method for evaluating the safe use of a commercial vehicle sleeper berth according to claim 6, characterized in that: The comprehensive working condition scoring results are analyzed at multiple levels to determine the feasibility engineering data, including: Performing a feasibility analysis on the stiffness score of the comprehensive working condition score result to obtain stiffness feasibility data; and determining the stiffness matching between various materials in the suspension system based on the stiffness feasibility data; Conducting feasibility analysis on the strength score of the comprehensive working condition score result to obtain feasibility data of the berth installation point strength and berth fatigue strength feasibility data of the flip berth system; The feasibility engineering data about the suspension system and the flip berth system in the cab are determined through the stiffness feasibility data, the stiffness matching degree, the berth mounting point strength feasibility data and the berth fatigue strength feasibility data.

8. A method for evaluating the safe use of a commercial vehicle sleeper berth according to claim 7, characterized in that: The feasibility data of the strength of the berth installation point is the feasibility data that does not exceed the yield strength of the material; The feasibility data of the berth fatigue strength is the feasibility data of the number of uses that meets the safety definition.

9. A safety evaluation device for commercial vehicle sleeper berths, characterized in that: The device comprises: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, so that the at least one processor can execute the method for evaluating the safe use of a commercial vehicle berth according to any one of claims 1-8.

10. A non-volatile computer storage medium, characterized in that: The storage medium is a non-volatile computer-readable storage medium, and the non-volatile computer-readable storage medium stores at least one program, each of which includes instructions, and when the instructions are executed by the terminal, the terminal executes a method for evaluating the safe use of a commercial vehicle sleeper according to any one of claims 1-8.

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