Intelligent chassis scheme type selection design system and design method

Abstract

The invention provides an intelligent chassis scheme type selection design system and method, and the system comprises a whole vehicle performance definition and decomposition module which is used for automatically interpreting a whole vehicle demand inputted by a customer, outputting a whole vehicle performance definition meeting the customer demand, and outputting a decomposed intelligent chassis performance definition, defining the performance of each execution system of the decomposed chassis; the intelligent chassis system scheme intelligent matching module is used for automatically calculating and generating a configuration scheme of the intelligent chassis system; the intelligent chassis system scheme technology scoring module is used for automatically matching corresponding design and simulation models in the model database; and the intelligent chassis supplier comprehensive scoring module is used for performing multi-dimensional scoring and sorting on corresponding suppliers in each configuration scheme. According to the system, intelligent matching and evaluation can be achieved, and an intelligent chassis system with the most cost performance can be designed more efficiently and accurately.

Description

Technical Field

[0001] The present invention relates to the field of intelligent chassis design, and particularly to an intelligent chassis solution selection and design system and a design method. Background Art

[0002] In the prior art, according to the analysis of industry trend development, the future development of intelligent chassis presents three major trends: one is the trend of in-chassis domain integration, which realizes the coordinated control of six degrees of freedom in three directions of X, Y, and Z by improving the subsystem integration of the intelligent chassis. The second is the trend of cross-domain integration of the chassis, which promotes the realization of vehicle intelligence through the integration with functional domains such as the body domain, intelligent driving domain, and intelligent cockpit domain. The third is the change in the industrial cooperation model of intelligent chassis. Under the new supply cooperation model, the vehicle manufacturer can achieve more efficient closed-loop iteration of the intelligent chassis and accelerate the iterative development of software.

[0003] Due to the current popularity of the intelligent chassis concept, traditional vehicle manufacturers, new energy vehicle manufacturers, suppliers with chassis control backgrounds, and even suppliers that only used to be involved in the traditional chassis field are all actively deploying intelligent chassis business.

[0004] With the shortening of the vehicle development cycle, the improvement of the iteration speed, and the continuous in-depth development of software-defined vehicle technology, the industrial cooperation model of intelligent chassis will undergo a qualitative change, and the third major trend of intelligent chassis is becoming increasingly obvious.

[0005] Therefore, in view of the above trends, the present application designs an intelligent chassis solution selection and design system and a design method in order to overcome the above technical problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defect that in the prior art, with the shortening of the vehicle development cycle, the improvement of the iteration speed, and the continuous in-depth development of software-defined vehicle technology, higher requirements are continuously put forward for the development of intelligent chassis, and to provide an intelligent chassis solution selection and design system and a design method.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] An intelligent chassis solution selection and design system, characterized in that the intelligent chassis solution selection and design system includes:

[0009] A vehicle performance definition and decomposition module, which is used to automatically interpret the vehicle requirements input by the customer, and based on the vehicle performance development target database, output the vehicle performance definition that meets the customer requirements, the decomposed intelligent chassis performance definition, and the performance definition of each chassis execution system after decomposition;

[0010] The intelligent chassis system solution intelligent matching module is used to calculate and generate the configuration solution of the intelligent chassis system automatically based on the performance definitions of the chassis and each execution system output by the vehicle performance definition and decomposition module and the intelligent chassis configuration solution database.

[0011] The intelligent chassis system solution technical scoring module is used to automatically match the corresponding design and simulation models in the model database according to the configuration solution output by the intelligent chassis system solution intelligent matching module.

[0012] The intelligent chassis supplier comprehensive scoring module, according to the configuration solution and design solution output by the intelligent chassis system solution intelligent matching module, based on the intelligent chassis supply chain database, scores and ranks the corresponding suppliers in each configuration solution in multiple dimensions by the intelligent chassis supplier comprehensive scoring model.

[0013] According to an embodiment of the present invention, the intelligent chassis solution selection and design system further includes an intelligent chassis solution overall satisfaction evaluation module. According to the results output by the intelligent chassis system solution technical scoring model and the intelligent chassis supplier comprehensive scoring model, the intelligent chassis solution overall satisfaction evaluation model conducts an overall evaluation of the solution and outputs the intelligent chassis system solution that best meets the customer's needs and has the best cost performance.

[0014] According to an embodiment of the present invention, the vehicle performance definition and decomposition module includes: a vehicle performance development target database, and a performance definition and decomposition model.

[0015] According to an embodiment of the present invention, the intelligent chassis system solution intelligent matching module includes: an intelligent chassis configuration solution database, and an intelligent chassis system solution intelligent matching algorithm model.

[0016] According to an embodiment of the present invention, the intelligent chassis system solution technical scoring module includes: an intelligent chassis solution model, an intelligent chassis design model, a simulation model database, an automated modeling and simulation tool chain, and an intelligent chassis system solution technical scoring model.

[0017] According to an embodiment of the present invention, the intelligent chassis supplier comprehensive scoring module includes: an intelligent chassis supply chain database, and an intelligent chassis supplier comprehensive scoring model.

[0018] The present invention also provides an intelligent chassis solution selection and design method, characterized in that the intelligent chassis solution selection and design method includes the following steps:

[0019] S1. Import the requirements for the development of the intelligent chassis system into the system;

[0020] S2. Retrieve in the vehicle performance development target database whether there are the same or similar performance targets;

[0021] S3. In the intelligent chassis system solution intelligent matching module, according to the analysis and decomposition results of the input intelligent chassis requirement items, screen whether there are the same or similar intelligent chassis configuration solutions;

[0022] S4. Output the initially screened intelligent chassis configuration solutions to the intelligent chassis performance rapid prediction model;

[0023] S5. Determine whether the intelligent chassis performance rapid prediction model can be used for the performance prediction of the initially screened intelligent chassis configuration solutions;

[0024] S6. Input the results of the intelligent chassis configuration solutions into the intelligent chassis system solution technical scoring module and the intelligent chassis supplier comprehensive scoring module;

[0025] S7. Input the intelligent chassis multi-solution technical comparison results, the intelligent chassis supplier solution evaluation and ranking results into the intelligent chassis solution overall satisfaction evaluation module, and output the comprehensive evaluation and ranking results of the intelligent chassis solution satisfaction.

[0026] According to an embodiment of the present invention, before the step S1, it further includes: S0. Collect the basic information related to the vehicle from the customer according to the preset data template.

[0027] According to an embodiment of the present invention, the step S2 further includes:

[0028] S 21 ., if there are the same or similar performance targets, then enter step S 22 , and output the analysis and decomposition results of the intelligent chassis requirement items; if there are no the same or similar performance targets, then enter step S 23 ;

[0029] S 22 ., conduct compliance confirmation on the analysis and decomposition results of the intelligent chassis requirement items. If not compliant, then return to step S0, continue to communicate with the customer and update the input; if compliant, then enter the intelligent chassis system solution intelligent matching module;

[0030] S 23 ., call the vehicle performance analysis and decomposition model and output the analysis and decomposition results of the intelligent chassis requirement items.

[0031] According to an embodiment of the present invention, the step S3 further includes:

[0032] S 31 ., if there are no the same or similar intelligent chassis configuration solutions, then enter step S 32; If there are the same or similar intelligent chassis configuration solutions, then go to step S 33 ;

[0033] S 32 、According to the analysis and decomposition results of the input intelligent chassis requirement items, use the intelligent matching algorithm model of the intelligent chassis system solution for automatic matching; during the matching calculation process, perform self-learning on the parameters in the intelligent matching algorithm model of the intelligent chassis system solution to continuously improve the accuracy of the intelligent matching algorithm model of the intelligent chassis system solution;

[0034] S 33 、Generate an automatically configured intelligent chassis configuration solution that meets the requirements as the preliminary screening result.

[0035] According to an embodiment of the present invention, the step S5 further includes:

[0036] S 51 、If the performance prediction of the intelligent chassis configuration solution that can be used for preliminary screening is possible, then go to step S 52 ; If the performance prediction of the intelligent chassis configuration solution that cannot be used for preliminary screening is not possible, then go to step S 53 ;

[0037] S 52 、Output the performance prediction result of the intelligent chassis configuration solution based on the intelligent chassis performance rapid prediction model;

[0038] S 53 、Enter the automatic modeling and simulation module.

[0039] According to an embodiment of the present invention, the step S6 further includes:

[0040] S 61 、According to the intelligent chassis system solution technology scoring module, output the technical comparison results of multiple intelligent chassis solutions;

[0041] S 62 、According to the preliminary screening result of the input intelligent chassis configuration solution, based on the intelligent chassis supply chain database, output the preliminary screening result of the intelligent chassis supplier solution;

[0042] S 63 、Judge whether the preliminary screening result meets the input of the intelligent chassis supplier comprehensive scoring module. If not, go to step S 64 ; If it meets, go to step S 65 ;

[0043] S 64 、Enter the supplier maintenance module, update or add the information of each dimension of the supplier to the intelligent chassis supply chain database, and then return to step S 62 ;

[0044] S 65 3. Based on the initial screening results of the intelligent chassis supplier solutions input, and based on the comprehensive scoring module for intelligent chassis suppliers, output the evaluation and ranking results of the intelligent chassis supplier solutions.

[0045] According to an embodiment of the present invention, after the step S7, the following further includes:

[0046] S8. According to the input customer requirements, confirm the compliance of the results. If satisfied, enter step S9; if not satisfied, return to step S 33 ;

[0047] S9. Output the recommended intelligent chassis system solution that best meets the customer requirements and is the most cost-effective.

[0048] The positive and progressive effects of the present invention are as follows:

[0049] The intelligent chassis solution selection and design system and design method of the present invention can be a system for intelligent matching and evaluation, and can more efficiently and accurately design the most cost-effective intelligent chassis system.

[0050] The intelligent chassis solution selection and design system and design method of the present invention, through the innovative concepts of highly integrated, modular design and open platform, significantly improve the development efficiency, reduce the cost, and at the same time provide strong support for intelligent driving and sustainable development.

[0051] The intelligent chassis solution selection and design system and design method of the present invention can be a system for intelligent matching and evaluation, and can more efficiently and accurately design the most cost-effective intelligent chassis system. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The above and other features, properties and advantages of the present invention will become more obvious through the following description in conjunction with the drawings and embodiments. In the drawings, the same reference numerals always represent the same features, where:

[0053] Figure 1 is a schematic structural diagram of the intelligent chassis solution selection and design system of the present invention.

[0054] Figure 2 is a flowchart of the intelligent chassis solution selection and design method of the present invention.

[0055] Figure 3 is a flowchart of the automated modeling and simulation module in the intelligent chassis solution selection and design method of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0056] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention is provided in conjunction with the drawings.

[0057] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Preferred embodiments of the present invention will now be described in detail, and examples thereof are shown in the accompanying drawings. Whenever possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0058] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some of the terms mentioned in the specification of the present invention may be selected by the applicant according to his or her judgment, and their detailed meanings are described in the relevant parts of the description herein.

[0059] Furthermore, it is required to understand the present invention not only by the actual terms used, but also by the meaning implied by each term.

[0060] As Figure 1 shown, the present invention discloses an intelligent chassis solution selection and design system, which includes: a vehicle performance definition and decomposition module, an intelligent chassis system solution intelligent matching module, an intelligent chassis system solution technical scoring module, an intelligent chassis supplier comprehensive scoring module, and an intelligent chassis solution overall satisfaction evaluation module.

[0061] Among them, the vehicle performance definition and decomposition module is used to automatically interpret the vehicle requirements input by the customer, and based on the vehicle performance development target database, output the vehicle performance definition that meets the customer requirements, the decomposed intelligent chassis performance definition, and the performance definitions of each execution system of the chassis.

[0062] Preferably, the vehicle performance definition and decomposition module includes: a vehicle performance development target database, and a performance definition and decomposition model. Among them, the vehicle performance development target database is a large database composed of the main performance parameters and design targets of more than several hundred already developed and mature chassis systems existing in the company. For example, vehicle braking performance data, chassis handling stability data, etc. Such a large database covers the main design target data for the vehicle and chassis parts of traditional fuel vehicles, new energy vehicles, etc., and is defined separately according to dimensions such as vehicle type, vehicle size, and front and rear axle system type.

[0063] The performance definition and decomposition model refers to an automatic calculation model that can separately calculate the vehicle performance design targets to each chassis system through certain means such as calculation, simulation, and load decomposition during the early concept development process of the chassis. Such a model can achieve, for example, separately mapping design indicators such as the vehicle braking distance to specific design parameters of the braking system; for example, to achieve a braking distance of less than 35 meters, the cylinder diameter of the braking system needs to be at least greater than a certain value, so as to guide the selection of each chassis system.

[0064] The intelligent chassis system solution intelligent matching module is used to automatically calculate and generate the configuration solution of the intelligent chassis system based on the performance definitions of the chassis and each execution system output by the vehicle performance definition and decomposition module and the intelligent chassis configuration solution database.

[0065] Preferably, the intelligent chassis system solution intelligent matching module includes: an intelligent chassis configuration solution database and an intelligent chassis system solution intelligent matching algorithm model.

[0066] Among them, the intelligent chassis configuration solution database is a large database based on all configuration information of more than hundreds of chassis systems that have been developed and matured in the company. For example, the configuration of the braking system is divided into ordinary single-cylinder floating calipers, double-cylinder fixed calipers, triple-cylinder fixed calipers, etc.

[0067] The intelligent chassis system solution intelligent matching algorithm model, according to the performance definitions of the chassis and each execution system output by the vehicle performance definition and decomposition module. Based on the intelligent chassis configuration solution database, it is automatically calculated by the intelligent matching algorithm model and generates the configuration solution of the intelligent chassis system.

[0068] For example, if the vehicle target requires that the chassis braking distance be less than 35 meters, this intelligent algorithm can automatically calculate and match, according to the definition of the braking system by the vehicle performance definition and decomposition module, that for this type of vehicle to achieve this design goal, the optimal design is to adopt a configuration of a double-cylinder fixed caliper.

[0069] The intelligent chassis system solution technical scoring module is used to automatically match the corresponding design and simulation models in the model database according to the configuration solution output by the intelligent chassis system solution intelligent matching module.

[0070] Preferably, the intelligent chassis system solution technical scoring module includes: an intelligent chassis solution model, an intelligent chassis design model, a simulation model database, an automated modeling and simulation toolchain, and an intelligent chassis system solution technical scoring model.

[0071] For example, for the configuration solution obtained in the previous step, for the braking performance requirements of a certain vehicle model, if a double-cylinder fixed caliper configuration needs to be selected, then the system will automatically match whether there is a ready-to-use design solution in the existing solution library, including the 3D data solution of its subsystem design and design information such as specific dimensions and materials, and necessary strength and durability simulation models, etc.

[0072] If there is no matching model in the existing solution model library in the past, the system will automatically call the automated modeling and simulation toolchain to generate design and simulation models. The automated modeling and simulation toolchain here is based on the existing design principles and methods of each subsystem of the chassis, as well as various design standards, guidelines, etc. These design methods are used for automated product design and automated simulation modeling through system algorithms.

[0073] After the product design and modeling and simulation are completed, the system will automatically transfer to the intelligent chassis system solution technology scoring model to score and rank each configuration solution and design solution.

[0074] The intelligent chassis system solution scoring model is a model based on the existing automated design evaluation and review of the design solutions of each subsystem within the intelligent chassis. This model forms an automated evaluation algorithm by using various checklist and other design review principles of the existing chassis system design review. Through the algorithm, it comprehensively evaluates the design solutions and identifies potential technical risks and quality risks in the system design solutions.

[0075] The intelligent chassis supplier comprehensive scoring module, according to the configuration solutions and design solutions output by the intelligent chassis system solution intelligent matching module, based on the intelligent chassis supply chain database, the intelligent chassis supplier comprehensive scoring model scores and ranks the corresponding suppliers in each configuration solution in multiple dimensions.

[0076] Preferably, the intelligent chassis supplier comprehensive scoring module includes: an intelligent chassis supply chain database, an intelligent chassis supplier comprehensive scoring model.

[0077] Among them, the intelligent chassis supply chain database is based on the supply chain information of all current domestic chassis systems and parts collected by us from various channels. For example, the suppliers who can provide supporting for brake calipers, the suppliers who can provide supporting for brake discs, and these supply chain data are imported into the system to generate a large database.

[0078] The intelligent chassis supplier comprehensive scoring model is a model that comprehensively evaluates all part suppliers in dimensions such as product design ability, manufacturing ability, quality control ability, and cost level. It can judge the optimal solution for supplier selection through the comprehensive evaluation of these dimensions based on the specific supply chain information matched, and guide the selection of suppliers for each system and part of the intelligent chassis.

[0079] The intelligent chassis solution overall satisfaction evaluation module, according to the results output by the intelligent chassis system solution technology scoring model and the intelligent chassis supplier comprehensive scoring model, the intelligent chassis solution overall satisfaction evaluation model conducts an overall evaluation of the solution and outputs the intelligent chassis system solution that best meets customer needs and has the best cost performance.

[0080] As Figure 2 and Figure 3 shown, the present invention also provides a method for selecting and designing an intelligent chassis solution, which includes the following steps:

[0081] Step S1: Import the requirements for the development of the intelligent chassis system into the system.

[0082] Preferably, before step S1, it further includes: S0: Collect basic information related to the whole vehicle from the customer according to a preset data template.

[0083] For example, the basic information includes, but is not limited to, design parameters such as the geometry and weight of the whole vehicle, and basic performance targets such as power performance, braking performance, steering performance, ride comfort, and handling stability.

[0084] Step S2: Retrieve whether there are the same or similar performance targets in the whole vehicle performance development target database.

[0085] Preferably, step S2 further includes:

[0086] Step S 21 : If there are the same or similar performance targets, then enter step S 22 , and output the analysis and decomposition results of the intelligent chassis requirement items; if there are no same or similar performance targets, then enter step S 23 ;

[0087] Step S 22 : Confirm the compliance of the analysis and decomposition results of the intelligent chassis requirement items. If not compliant, return to step S0, continue to communicate with the customer and update the input; if compliant, enter the intelligent matching module of the intelligent chassis system solution.

[0088] Step S 23 : Invoke the whole vehicle performance analysis and decomposition model and output the analysis and decomposition results of the intelligent chassis requirement items.

[0089] Step S3: In the intelligent matching module of the intelligent chassis system solution, screen whether there are the same or similar intelligent chassis configuration solutions according to the input analysis and decomposition results of the intelligent chassis requirement items.

[0090] Preferably, step S3 further includes:

[0091] Step S 31 : If there are no same or similar intelligent chassis configuration solutions, then enter step S 32 ; if there are the same or similar intelligent chassis configuration solutions, then enter step S 33 ;

[0092] Step S 32, according to the analysis and decomposition results of the input intelligent chassis requirement items, use the intelligent matching algorithm model of the intelligent chassis system solution for automatic matching; during the matching calculation process, perform self-learning on the parameters in the intelligent matching algorithm model of the intelligent chassis system solution to continuously improve the accuracy of the intelligent matching algorithm model of the intelligent chassis system solution;

[0093] Step S 33 , generate an automatic configuration to obtain an intelligent chassis configuration solution that meets the requirements as the preliminary screening result.

[0094] Step S4, output the intelligent chassis configuration solution obtained by preliminary screening to the intelligent chassis performance rapid prediction model.

[0095] Step S5, determine whether the intelligent chassis performance rapid prediction model can be used for predicting the performance of the intelligent chassis configuration solution obtained by preliminary screening.

[0096] Preferably, the step S5 further includes:

[0097] Step S 51 , if it can be used for predicting the performance of the intelligent chassis configuration solution obtained by preliminary screening, then enter step S 52 ; if it cannot be used for predicting the performance of the intelligent chassis configuration solution obtained by preliminary screening, then enter step S 53 ;

[0098] Step S 52 , output the performance prediction result of the intelligent chassis configuration solution based on the intelligent chassis performance rapid prediction model;

[0099] Step S 53 , enter the automatic modeling and simulation module.

[0100] As Figure 3 shown, the processing process of the automatic modeling and simulation module is as follows:

[0101] First, refine the relevant parameters of the intelligent chassis configuration solution. For example, adjust or refine the detailed parameters that can be used for performance simulation evaluation. For example, if the automatic simulation configuration module does not output the friction coefficient information of the braking system, resulting in the inapplicability of the performance prediction model, then it is necessary to enter the automatic modeling and simulation module to increase or adjust the friction coefficient information.

[0102] Second, based on the historical parameterized model library of the chassis system, construct the parameter models of each intelligent chassis solution. For example, by comparing with the historical parameterized model library of the chassis system, it is found that there are many missing simulation parameters, then the system will automatically match and construct new parameter models for each solution.

[0103] Third, automatically construct the parameterized CAD model and CAE model of the chassis.

[0104] Fourth, based on the automated modeling and simulation toolchain, perform simulation analysis on the structural performance of the constructed finite element model of the chassis structure, construct a parametric dynamic model of the chassis system, and perform simulation analysis on the system dynamic performance. Construct a parametric CAM model of the chassis system and perform manufacturability simulation.

[0105] Fifth, store the parameter model, CAD model, simulation model, and simulation results in the historical parametric model library of the chassis system.

[0106] Sixth, determine whether the simulation results meet the design requirements. If they do, proceed to the following step S6; if not, return to the above step three.

[0107] Step S6: Input the results of the intelligent chassis configuration plan into the intelligent chassis system plan technical scoring module and the intelligent chassis supplier comprehensive scoring module.

[0108] Preferably, the step S6 further includes:

[0109] Step S 61 : Output the technical comparison results of multiple intelligent chassis plans according to the intelligent chassis system plan technical scoring module;

[0110] Step S 62 : Based on the intelligent chassis supply chain database, output the preliminary screening results of the intelligent chassis supplier plan according to the preliminary screening results of the input intelligent chassis configuration plan;

[0111] Step S 63 : Determine whether the preliminary screening results meet the input requirements of the intelligent chassis supplier comprehensive scoring module. If not, proceed to step S 64 ; if so, proceed to step S 65 ;

[0112] Step S 64 : Enter the supplier maintenance module, update or add the information of each dimension of the supplier to the intelligent chassis supply chain database, and then return to step S 62 ;

[0113] Step S 65 : Based on the intelligent chassis supplier comprehensive scoring module, output the evaluation and ranking results of the intelligent chassis supplier plan according to the input preliminary screening results of the intelligent chassis supplier plan.

[0114] Step S7: Input the technical comparison results of multiple intelligent chassis plans and the evaluation and ranking results of the intelligent chassis supplier plan into the overall satisfaction evaluation module of the intelligent chassis plan, and output the comprehensive evaluation and ranking results of the satisfaction of the intelligent chassis plan.

[0115] Preferably, after the step S7, it further includes:

[0116] Step S8: Confirm the compliance of the result according to the input customer requirements. If it is satisfied, proceed to Step S9; if not, return to Step S 33 ;

[0117] Step S9: Output the recommended intelligent chassis system solution that best meets the customer requirements and offers the best cost performance.

[0118] In summary, the intelligent chassis solution selection and design system and design method of the present invention can be a system for intelligent matching and evaluation, and can more efficiently and accurately design the most cost-effective intelligent chassis system.

[0119] For those skilled in the art, the above disclosure of the invention is merely an example and does not constitute a limitation to this application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are proposed in this application, so such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of this application.

[0120] At the same time, this application uses specific terms to describe the embodiments of this application. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.

[0121] Similarly, it should be noted that, in order to simplify the presentation of this application disclosure and thus help the understanding of one or more embodiments of the invention, in the previous description of the embodiments of this application, sometimes multiple features are merged into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than those mentioned in the claims. In fact, the features of the embodiments are less than all the features of the above-disclosed single embodiment. In some embodiments, numbers describing components, attribute quantities are used. It should be understood that such numbers used for the description of embodiments are, in some examples, modified by the modifiers "about", "approximate", or "substantially".

[0122] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An intelligent chassis scheme selection and design system, characterized in that: The intelligent chassis scheme selection and design system includes: The vehicle performance definition and decomposition module is used to automatically interpret the vehicle requirements input by customers, develop a target database based on vehicle performance, and output the vehicle performance definition that meets customer requirements, the decomposed intelligent chassis performance definition, and the decomposed performance definition of each chassis execution system; An intelligent chassis system solution intelligent matching module, which is used to automatically calculate and generate a configuration solution of the intelligent chassis system based on the intelligent chassis configuration solution database according to the performance definition of the whole vehicle and the performance definition of the chassis and each execution system output by the decomposition module; An intelligent chassis system solution technical scoring module, used to automatically match the corresponding design and simulation models in the model database according to the configuration solution output by the intelligent matching module of the intelligent chassis system solution; The intelligent chassis supplier comprehensive scoring module, based on the configuration scheme and design scheme output by the intelligent chassis system solution intelligent matching module and the intelligent chassis supply chain database, uses the intelligent chassis supplier comprehensive scoring model to perform multi-dimensional scoring and ranking of the corresponding suppliers in each configuration scheme.

2. The intelligent chassis scheme selection and design system according to claim 1, characterized in that: The intelligent chassis solution selection and design system also includes an intelligent chassis solution overall satisfaction evaluation module. According to the output results of the intelligent chassis system solution technical scoring model and the intelligent chassis supplier comprehensive scoring model, the intelligent chassis solution overall satisfaction evaluation model performs an overall evaluation on the solution and outputs the intelligent chassis system solution that best meets customer needs and is the most cost-effective.

3. The intelligent chassis scheme selection and design system according to claim 1, characterized in that: The vehicle performance definition and decomposition module includes: a vehicle performance development target database, and a performance definition and decomposition model.

4. The intelligent chassis scheme selection and design system according to claim 1, characterized in that: The intelligent chassis system solution intelligent matching module includes: an intelligent chassis configuration solution database, and an intelligent chassis system solution intelligent matching algorithm model.

5. The intelligent chassis scheme selection and design system according to claim 1, characterized in that: The intelligent chassis system solution technical scoring module includes: an intelligent chassis solution model, an intelligent chassis design model, a simulation model database, an automated modeling and simulation tool chain, and an intelligent chassis system solution technical scoring model.

6. The intelligent chassis scheme selection and design system according to claim 1, characterized in that: The smart chassis supplier comprehensive scoring module includes: a smart chassis supply chain database and a smart chassis supplier comprehensive scoring model.

7. A method for selecting and designing an intelligent chassis scheme, characterized in that: The intelligent chassis scheme selection and design method comprises the following steps: S1. Import the requirements for the development of the intelligent chassis system into the system; S2. Searching in the vehicle performance development target database whether there are the same or similar performance targets; S3. In the intelligent chassis system solution intelligent matching module, based on the analysis and decomposition results of the input intelligent chassis requirement items, screen whether there are the same or similar intelligent chassis configuration solutions; S4, outputting the initially screened intelligent chassis configuration scheme to the intelligent chassis performance rapid prediction model; S5. Determine whether the intelligent chassis performance rapid prediction model can be used for the performance prediction of the initially screened intelligent chassis configuration scheme; S6. Input the result of the intelligent chassis configuration solution into the intelligent chassis system solution technical scoring module and the intelligent chassis supplier comprehensive scoring module; S7. Input the technical comparison results of multiple intelligent chassis solutions and the evaluation and ranking results of intelligent chassis supplier solutions into the overall satisfaction evaluation module of the intelligent chassis solution, and output the comprehensive evaluation and ranking results of the satisfaction of the intelligent chassis solution.

8. The intelligent chassis scheme selection and design method according to claim 7, characterized in that: Before step S1, the method also includes: S0, collecting basic information about the whole vehicle from the customer according to a preset data template.

9. The intelligent chassis scheme selection and design method according to claim 8, characterized in that: The step S2 also includes: S 21 If there are the same or similar performance targets, go to step S 22 , output the analysis and decomposition results of the intelligent chassis requirements; if there are no identical or similar performance targets, proceed to step S 23 ; S 22 2. Confirm the conformity of the analysis and decomposition results of the smart chassis requirements. If not, return to step S0 to continue communicating with the customer and updating the input; if conforming, enter the smart chassis system solution intelligent matching module; S 23 , call the vehicle performance analysis and decomposition model, and output the analysis and decomposition results of the intelligent chassis requirement items.

10. The intelligent chassis scheme selection and design method according to claim 7, characterized in that: The step S3 also includes: S 31 If there is no identical or similar intelligent chassis configuration solution, proceed to step S 32 If there is an identical or similar intelligent chassis configuration solution, proceed to step S 33 ; S 32 , according to the analysis and decomposition results of the input intelligent chassis requirements, use the intelligent chassis system solution intelligent matching algorithm model to perform automatic matching; during the matching calculation process, the parameters in the intelligent chassis system solution intelligent matching algorithm model are self-learned to continuously improve the accuracy of the intelligent chassis system solution intelligent matching algorithm model; S 33 , generate an automatic configuration of the intelligent chassis configuration plan that meets the requirements as the initial screening result.

11. The intelligent chassis scheme selection and design method according to claim 7, characterized in that: The step S5 also includes: S 51 If the performance prediction of the intelligent chassis configuration scheme can be used for the initial screening, then go to step S 52 If the performance prediction of the intelligent chassis configuration scheme cannot be used for the initial screening, then go to step S 53 ; S 52 , output the performance prediction results of the intelligent chassis configuration scheme based on the intelligent chassis performance rapid prediction model; S 53 , enter the automated modeling and simulation module.

12. The intelligent chassis scheme selection and design method according to claim 7, characterized in that: The step S6 also includes: S 61 , output the technical comparison results of multiple intelligent chassis solutions according to the intelligent chassis system solution technical scoring module; S 62 , according to the initial screening results of the input intelligent chassis configuration scheme, based on the intelligent chassis supply chain database, output the initial screening results of the intelligent chassis supplier scheme; S 63 , determine whether the initial screening results meet the input of the intelligent chassis supplier comprehensive scoring module. If not, proceed to step S 64 ; If satisfied, go to step S 65 ; S 64 , enter the supplier maintenance module, update the supplier's information in each dimension or add it to the smart chassis supply chain database, and then return to step S 62 ; S 65 , based on the initial screening results of the input intelligent chassis supplier solutions, and based on the intelligent chassis supplier comprehensive scoring module, output the intelligent chassis supplier solution evaluation and ranking results.

13. The intelligent chassis scheme selection and design method according to claim 10, characterized in that: After step S7, the following steps are also included: S8: Confirm the compliance of the result according to the input customer requirements. If it meets the requirements, go to step S9; if not, return to step S 33 ; S9. Output the recommended intelligent chassis system solution that best meets customer needs and is most cost-effective.

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