A method and device for analyzing automobile chassis platform

Abstract

The present invention provides an analysis method and device for an automobile chassis platform, which relates to the field of automobile technology. The analysis method for the automobile chassis platform includes obtaining vehicle model information and basic chassis performance parameters; calculating chassis kinematic characteristics according to the basic chassis performance parameters, and generating corresponding first chassis system performance parameters; calculating corresponding second chassis system performance parameters according to the evolution strategy in the target suspension calculation template in the pre-stored suspension calculation template library; analyzing the first system difference results of the comparison between the first chassis system performance parameters and the pre-stored benchmark vehicle experience parameters, and the second system difference results of the comparison between the second chassis system performance parameters and the benchmark vehicle experience parameters, to obtain chassis system analysis results. The scheme of the present invention can accurately calculate the chassis system performance parameters after the chassis posture changes, and analyze them, greatly improving the analysis efficiency.

Description

Technical Field

[0001] The invention belongs to the field of automobile technology, and in particular relates to an analysis method and device for an automobile chassis platform. Background Art

[0002] With the development of the automobile industry, the platform strategy is generally adopted in the manufacturing process. Products on the same platform use a large number of common parts and assemblies, which can greatly reduce manufacturing and procurement costs. In the R&D process, a complete platform design helps to improve the performance of multiple models of the same level under the same company, and greatly reduces the R&D costs of independently developed models. When developing a platform, it is necessary to take into account the planning of all models and seek a balance between the commonality of the platform and the uniqueness of a single model. For chassis platformization, the evolution strategy of models under the same platform determines the commonality of chassis parts, the development potential of chassis dynamics performance and other aspects during development, which is an important part of chassis system development.

[0003] The chassis system of a car generally includes the suspension system, steering system and driving system, among which the selection, layout and performance of the suspension system largely determine the evolution of the chassis platform, so the evolution of the suspension system is the core of the design of the chassis platform. Since there may be multiple models under the same platform, and the vehicle parameters of various models are different, such as wheelbase, track and ground clearance, etc., they will be adjusted. In the early stage of platform development, the layout work can be carried out through professional 3D drawing software, but the influence of the evolution of the suspension system on the performance of the suspension system can only be verified through detailed chassis system hard point data and the establishment of complex multi-body dynamics models, which is a large workload and requires a long period of time. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a method and device for analyzing an automobile chassis platform, thereby solving the problem of complex models when the automobile chassis platform undergoes suspension system evolution in the prior art.

[0005] In order to achieve the above object, an embodiment of the present invention provides an analysis method of an automobile chassis platform, comprising:

[0006] Obtain vehicle model information and basic chassis performance parameters;

[0007] Calculating chassis kinematic characteristics according to the chassis basic performance parameters to generate corresponding first chassis system performance parameters;

[0008] Calculate the corresponding second chassis system performance parameters according to the evolution strategy in the target suspension calculation template in the pre-stored suspension calculation template library;

[0009] A first system difference result of comparing the first chassis system performance parameter with the pre-stored benchmark vehicle experience parameter and a second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter are analyzed to obtain a chassis system analysis result.

[0010] Optionally, the chassis basic performance parameters include: front suspension system performance parameters, rear suspension system performance parameters and steering system performance parameters;

[0011] The kinematic characteristics of the chassis are calculated according to the basic performance parameters of the chassis to generate corresponding first chassis system performance parameters, including:

[0012] The kinematic characteristics of the chassis are calculated according to the hard point data in the front suspension system performance parameters, the rear suspension system performance parameters and the steering system performance parameters, respectively, to generate corresponding first chassis system performance parameters.

[0013] Optionally, the evolution strategy is the relationship between the kinematic characteristics of the chassis and the front suspension system, the rear suspension system and the steering system when they are in different spatial positions.

[0014] Optionally, the analysis method of the automobile chassis platform further includes:

[0015] Calculating a first whole vehicle performance parameter according to the first chassis system performance parameter, and calculating a second whole vehicle performance parameter according to the second chassis system performance parameter;

[0016] Analyze the first whole vehicle difference result of comparing the first whole vehicle performance parameter with the benchmark vehicle experience parameter, and the second whole vehicle difference result of comparing the second whole vehicle performance parameter with the benchmark vehicle experience parameter, to obtain a whole vehicle analysis result.

[0017] Optionally, the first vehicle performance parameter and the second vehicle performance parameter respectively include at least one of the following:

[0018] Understeer, body roll, steering sensitivity and minimum turning diameter.

[0019] Optionally, after analyzing a first system difference result of comparing the first chassis system performance parameter with a pre-stored benchmark vehicle experience parameter, and a second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter, and obtaining a chassis system analysis result, the method further includes:

[0020] The chassis system analysis results are compared with a pre-stored empirical target range to obtain a system analysis report.

[0021] Optionally, after analyzing a first whole vehicle difference result of comparing the first whole vehicle performance parameter with the benchmark vehicle empirical parameter, and a second whole vehicle difference result of comparing the second whole vehicle performance parameter with the benchmark vehicle empirical parameter, and obtaining a whole vehicle analysis result, the method further includes:

[0022] The whole vehicle analysis result is compared with a pre-stored empirical target range to obtain a whole vehicle analysis report.

[0023] Optionally, the empirical target range is determined based on chassis performance parameters of multiple vehicles that have been entered.

[0024] An embodiment of the present invention further provides an analysis device for an automobile chassis platform, comprising:

[0025] Acquisition module, used to obtain vehicle model information and basic chassis performance parameters;

[0026] A generating module, used to calculate the kinematic characteristics of the chassis according to the basic performance parameters of the chassis, and generate corresponding first chassis system performance parameters;

[0027] A calculation module, used for calculating the corresponding second chassis system performance parameter according to the evolution strategy in the target suspension calculation template in the pre-stored suspension calculation template library;

[0028] The analysis module is used to analyze the first system difference result of comparing the first chassis system performance parameter with the pre-stored benchmark vehicle experience parameter, and the second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter, to obtain a chassis system analysis result.

[0029] An embodiment of the present invention further provides a readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned method for analyzing the automobile chassis platform are implemented.

[0030] The above technical solution of the present invention has at least the following beneficial effects:

[0031] In the above scheme, the platform-based analysis method of the automobile chassis obtains vehicle model information and basic chassis performance parameters; based on the basic chassis performance parameters, the chassis kinematic characteristics are calculated to generate corresponding first chassis system performance parameters; based on the evolution strategy in the target suspension calculation template in the pre-stored suspension calculation template library, the corresponding second chassis system performance parameters can be accurately calculated; and the first system difference results of the comparison between the first chassis system performance parameters and the pre-stored benchmark vehicle experience parameters, as well as the second system difference results of the comparison between the second chassis system performance parameters and the benchmark vehicle experience parameters are analyzed to obtain the chassis system analysis results, avoid the tedious and error-prone problems of manual analysis, and greatly improve the analysis efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic flow chart of an analysis method for an automobile chassis platform according to an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of a specific embodiment of the analysis method of the automobile chassis platform according to an embodiment of the present invention;

[0034] Figure 3 Schematic diagram of an analysis device for an automobile chassis platform according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0036] The embodiment of the present invention aims at the problem of complex model when the suspension system of the automobile chassis platform is evolved in the prior art, and provides an analysis method and device for the automobile chassis platform.

[0037] like Figure 1 As shown, an embodiment of the present invention provides an analysis method for an automobile chassis platform, comprising:

[0038] Step S11, obtaining vehicle model information and basic chassis performance parameters;

[0039] In this step, the analysis method of the automobile chassis platform is applied to the automobile chassis development and design platform, which may be provided with an initial information entry module, into which the vehicle model information and basic chassis performance parameters are entered, and ensure that the vehicle model information is completely stored in a summary table or database file.

[0040] Step S12, calculating chassis kinematic characteristics according to the chassis basic performance parameters, and generating corresponding first chassis system performance parameters;

[0041] In this step, the basic chassis performance parameters determine the position of the chassis in the vehicle coordinate system, calculate the performance of the chassis at the current spatial position, and generate corresponding first chassis system performance parameters, i.e., chassis system performance parameters before evolution.

[0042] Step S13, calculating the corresponding second chassis system performance parameter according to the evolution strategy in the target suspension calculation template in the pre-stored suspension calculation template library;

[0043] In this step, a target suspension calculation template matching the vehicle model information is automatically selected from the pre-stored suspension calculation template library, and a variation strategy is determined. The performance corresponding to the change in the spatial position of the chassis changes accordingly, and the corresponding second chassis system performance parameters, i.e., the evolved chassis system performance parameters, are calculated. Among them, suspension calculation templates applicable to various automobile chassis can be pre-stored, and the scope of use is wide.

[0044] Step S14, analyzing a first system difference result of comparing the first chassis system performance parameter with a pre-stored benchmark vehicle experience parameter, and a second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter, to obtain a chassis system analysis result.

[0045] In this step, the chassis system performance parameters before and after the evolution are compared with the empirical parameters of the benchmark vehicle to obtain the chassis system analysis results, determine the rationality of the evolution amount and the margin of variation, and enable development and design personnel to clearly understand how to derive the chassis and choose the evolution method.

[0046] In this embodiment of the present invention, the analysis method of the automobile chassis platform can be applied to the development of various automobile chassis, by obtaining vehicle model information and chassis basic performance parameters; calculating the chassis kinematic characteristics according to the chassis basic performance parameters, and generating corresponding first chassis system performance parameters; according to the evolution strategy in the target suspension calculation template in the pre-stored suspension calculation template library, the corresponding second chassis system performance parameters can be accurately calculated; and analyzing the first system difference results of the comparison between the first chassis system performance parameters and the pre-stored benchmark vehicle experience parameters, and the second system difference results of the comparison between the second chassis system performance parameters and the benchmark vehicle experience parameters, to obtain the chassis system analysis results, avoid the tedious and error-prone problems of manual analysis, and greatly improve the analysis efficiency.

[0047] Specifically, the chassis basic performance parameters include: front suspension system performance parameters, rear suspension system performance parameters and steering system performance parameters;

[0048] The kinematic characteristics of the chassis are calculated according to the basic performance parameters of the chassis to generate corresponding first chassis system performance parameters, including:

[0049] The kinematic characteristics of the chassis are calculated according to the hard point data in the front suspension system performance parameters, the rear suspension system performance parameters and the steering system performance parameters, respectively, to generate corresponding first chassis system performance parameters.

[0050] It should be noted that the chassis system includes a front suspension system, a rear suspension system and a steering system. The hard point data in the front suspension system performance parameters, the rear suspension system performance parameters and the steering system performance parameters determine the positions of the chassis systems in the vehicle coordinate system, and the kinematic characteristics of the chassis systems are calculated through the hard point data to generate the corresponding first chassis system performance parameters.

[0051] Among them, Figure 2 As shown, a specific embodiment of the present invention is described:

[0052] The vehicle model information and chassis basic performance parameters entered by the automobile chassis platform are obtained; the entered vehicle model information needs to be judged whether it is complete. If it is incomplete, the development and design personnel are reminded to continue to enter the vehicle model information to ensure that the vehicle model information is completely stored in the summary table; the chassis basic performance parameters include suspension hard point data and steering hard point data, and the chassis system includes the front suspension system, the rear suspension system and the steering system. Among them, the suspension hard point data of the front suspension system and the rear suspension system both include control arms, shock absorbers and springs, and the steering hard point data of the steering system include swing arms, shock absorbers and springs; further, based on the hard point data, the chassis kinematic characteristics are calculated to generate the first chassis system performance parameters, wherein the suspension kinematic characteristics are calculated according to the suspension hard point data of the front suspension system and the rear suspension system, including: camber change rate, wheelbase change rate and roll center height, and the steering kinematic characteristics are calculated according to the steering hard point data of the steering system, including the kingpin angle and kingpin position. The first chassis basic performance parameters of each chassis system are compared with the pre-stored benchmark vehicle experience parameters to confirm the performance before evolution, so that development and design personnel can clarify the initial performance.

[0053] Furthermore, the evolution strategy is the relationship between the kinematic characteristics of the chassis and the front suspension system, the rear suspension system and the steering system when they are in different spatial positions.

[0054] It should be noted that when the spatial positions of the front suspension system, the rear suspension system and the steering system change, that is, the postures of the chassis systems change, the derivative amount is confirmed. According to the derivative amount, the hard point data in the front suspension system performance parameters, the rear suspension system performance parameters and the steering system performance parameters change, and the corresponding chassis motion characteristics can be calculated by geometry. It can also be understood that the derivative strategy is the chassis motion characteristics corresponding to the front suspension system, the rear suspension system and the steering system in different spatial positions.

[0055] It should also be noted that in the early stages of automobile chassis platform development and design, geometric calculations can be used to easily and accurately evolve various chassis systems, providing support for the development of the automobile chassis platform.

[0056] In an optional embodiment of the present invention, the method further comprises:

[0057] Calculating a first whole vehicle performance parameter according to the first chassis system performance parameter, and calculating a second whole vehicle performance parameter according to the second chassis system performance parameter;

[0058] Analyze the first whole vehicle difference result of comparing the first whole vehicle performance parameter with the benchmark vehicle experience parameter, and the second whole vehicle difference result of comparing the second whole vehicle performance parameter with the benchmark vehicle experience parameter, to obtain a whole vehicle analysis result.

[0059] It should be noted that the vehicle performance parameters are calculated based on the chassis performance parameters through dynamic theory and principles. When developing and designing the automobile chassis platform applied with the analysis method, a preliminary judgment can be made on the vehicle performance of each model under the automobile chassis platform, providing a data basis for setting the performance target of the automobile chassis platform.

[0060] Among them, by comparing and analyzing the vehicle performance parameters before and after evolution with the empirical parameters of the benchmark vehicle, the vehicle analysis results are obtained to facilitate subsequent analysis and optimization.

[0061] Furthermore, the first vehicle performance parameter and the second vehicle performance parameter respectively include at least one of the following:

[0062] Understeer, body roll, steering sensitivity and minimum turning diameter.

[0063] It should be noted that the analysis method of the automobile chassis platform can also perform preliminary verification of the boundaries of each vehicle model under the automobile chassis platform, and calculate the derived minimum ground clearance and other parameters through the derived performance parameters, so that the impact of the changes of each vehicle model under the automobile chassis platform on the boundary parameters of the whole vehicle can be quickly and accurately understood during the evolution process.

[0064] Specifically, after analyzing a first system difference result of comparing the first chassis system performance parameter with a pre-stored benchmark vehicle experience parameter and a second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter, and obtaining a chassis system analysis result, the method further includes:

[0065] The chassis system analysis results are compared with a pre-stored empirical target range to obtain a system analysis report.

[0066] It should be noted that the performance parameters of the first chassis system before evolution and the performance parameters of the second chassis system after evolution are compared with the pre-stored empirical parameters of the benchmark vehicle, and a graph is drawn. Here, the graph can be a scatter plot, which is used for development and design personnel to quickly identify the performance difference before and after evolution; and compared with the pre-stored empirical target range to obtain a system analysis report, and in the system analysis report, the performance parameters that do not meet the empirical target range are highlighted, which is easy and quick to use and greatly improves the analysis efficiency.

[0067] Further, after analyzing a first whole vehicle difference result of comparing the first whole vehicle performance parameter with the benchmark vehicle experience parameter and a second whole vehicle difference result of comparing the second whole vehicle performance parameter with the benchmark vehicle experience parameter, and obtaining a whole vehicle analysis result, the method further includes:

[0068] The whole vehicle analysis result is compared with a pre-stored empirical target range to obtain a whole vehicle analysis report.

[0069] It should be noted that the first vehicle performance parameter before evolution and the second vehicle performance parameter after evolution are compared with the pre-stored benchmark vehicle experience parameters, and a graph is drawn. The graph can be a bar chart, which can more conveniently identify the performance differences. At the same time, it is compared with the pre-stored experience target range to obtain a vehicle analysis report. In the vehicle analysis report, the performance parameters that do not meet the experience target range are highlighted, avoiding the tedious and error-prone problems of manual comparison, and facilitating subsequent analysis and optimization.

[0070] In an optional embodiment of the present invention, the performance parameters of the second chassis system after evolution are compared with the performance parameters of the first chassis system before evolution, and the performance parameters of the second chassis system after evolution are compared with the pre-stored empirical parameters of a benchmark vehicle, and a variation strategy that meets the empirical target range is selected as the target variation method, thereby calculating the performance parameters of the second vehicle after evolution based on the second chassis system performance parameters corresponding to the target variation method.

[0071] In an optional embodiment of the present invention, the empirical target range is determined based on chassis performance parameters of multiple vehicles that have been entered.

[0072] It should be noted that the empirical target range can quickly and clearly determine the evolution restriction range of the automobile chassis platform, and help development and design personnel understand the automobile chassis platform.

[0073] In summary, the analysis method of the automobile chassis platform according to the embodiment of the present invention has the following beneficial effects:

[0074] The analysis method of the automobile chassis platform of the embodiment of the present invention can accurately calculate the evolved chassis performance parameters through vehicle model information, chassis basic performance parameters and evolution strategy, avoiding the need to establish a multi-body dynamics model for simulation calculation in a short period of time at the beginning of platform design, thereby greatly improving the analysis efficiency;

[0075] The analysis method of the automobile chassis platform of the embodiment of the present invention integrates the analysis and comparison function. After the performance parameters of the second chassis system after the evolution are output, the performance parameters of the chassis system before and after the evolution are compared through automatic processing, and can be compared with the pre-stored empirical parameters of the benchmark vehicle, thereby avoiding the tedious and error-prone manual comparison and conveniently and easily performing platform design.

[0076] The automobile chassis platform analysis method of the embodiment of the present invention has the functions of calculating vehicle performance parameters, drawing and automatically generating analysis reports, which is convenient and fast to use and greatly improves the calculation efficiency;

[0077] The analysis method of the automobile chassis platform of the embodiment of the present invention can be applied to the development of various chassis platforms, covering a variety of suspension types. It can be used throughout all stages of vehicle development by automatically selecting a suspension calculation template. For example, in the platform design stage, it can be used for feasibility analysis of evolution strategies; in the scheme design stage, performance goals can be set and performance risks can be avoided; in the detailed design stage, the performance of the entire vehicle can be calculated to provide data for performance optimization.

[0078] Another embodiment of the present invention provides an analysis device for an automobile chassis platform, comprising:

[0079] Acquisition module, used to obtain vehicle model information and basic chassis performance parameters;

[0080] A generating module, used to calculate the kinematic characteristics of the chassis according to the basic performance parameters of the chassis, and generate corresponding first chassis system performance parameters;

[0081] A calculation module, used for calculating the corresponding second chassis system performance parameter according to the evolution strategy in the target suspension calculation template in the pre-stored suspension calculation template library;

[0082] The analysis module is used to analyze the first system difference result of comparing the first chassis system performance parameter with the pre-stored benchmark vehicle experience parameter, and the second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter, to obtain a chassis system analysis result.

[0083] It should be noted that the automobile chassis platform analysis device provided in the embodiment of the present invention is a device capable of executing the above-mentioned automobile chassis platform analysis method, and all embodiments of the above-mentioned automobile chassis platform analysis method are applicable to the device and can achieve the same or similar beneficial effects.

[0084] Specifically, the chassis basic performance parameters include: front suspension system performance parameters, rear suspension system performance parameters and steering system performance parameters;

[0085] The kinematic characteristics of the chassis are calculated according to the basic performance parameters of the chassis to generate corresponding first chassis system performance parameters, including:

[0086] The kinematic characteristics of the chassis are calculated according to the hard point data in the front suspension system performance parameters, the rear suspension system performance parameters and the steering system performance parameters, respectively, to generate corresponding first chassis system performance parameters.

[0087] Furthermore, the evolution strategy is the relationship between the basic performance parameters of the chassis and the front suspension system, the rear suspension system and the steering system when they are in different spatial positions.

[0088] In an optional embodiment of the present invention, the device is also used for:

[0089] Calculating a first whole vehicle performance parameter according to the first chassis system performance parameter, and calculating a second whole vehicle performance parameter according to the second chassis system performance parameter;

[0090] Analyze the first whole vehicle difference result of comparing the first whole vehicle performance parameter with the benchmark vehicle experience parameter, and the second whole vehicle difference result of comparing the second whole vehicle performance parameter with the benchmark vehicle experience parameter, to obtain a whole vehicle analysis result.

[0091] Specifically, the first vehicle performance parameter and the second vehicle performance parameter respectively include at least one of the following:

[0092] Understeer, body roll, steering sensitivity and minimum turning diameter.

[0093] Further, after analyzing a first system difference result of comparing the first chassis system performance parameter with a pre-stored benchmark vehicle experience parameter and a second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter, and obtaining a chassis system analysis result, the method further includes:

[0094] The chassis system analysis results are compared with a pre-stored empirical target range to obtain a system analysis report.

[0095] And, after analyzing a first whole vehicle difference result of comparing the first whole vehicle performance parameter with the benchmark vehicle experience parameter and a second whole vehicle difference result of comparing the second whole vehicle performance parameter with the benchmark vehicle experience parameter, and obtaining a whole vehicle analysis result, the method further includes:

[0096] The whole vehicle analysis result is compared with a pre-stored empirical target range to obtain a whole vehicle analysis report.

[0097] In an optional embodiment of the present invention, the empirical target range is determined based on chassis performance parameters of multiple vehicles that have been entered.

[0098] Another embodiment of the present invention provides a readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the above-mentioned method for analyzing the automobile chassis platform are implemented.

[0099] It should be noted that the readable storage medium provided in the embodiment of the present invention stores programs or instructions, which, when executed by the processor, implement the various processes of the above-mentioned automobile chassis platform analysis method embodiment and can achieve the same technical effect. To avoid repetition, they will not be repeated here.

[0100] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for analyzing an automobile chassis platform, characterized in that: include: Obtain vehicle model information and basic chassis performance parameters; Calculating chassis kinematic characteristics according to the chassis basic performance parameters to generate corresponding first chassis system performance parameters, where the first chassis system performance parameters are chassis system performance parameters before evolution; According to the evolution strategy in the target suspension calculation template in the pre-stored suspension calculation template library, the corresponding second chassis system performance parameter is calculated, where the second chassis system performance parameter is the evolved chassis system performance parameter; the evolution strategy is the relationship between the chassis kinematic characteristics and the front suspension system, the rear suspension system and the steering system when they are in different spatial positions; Analyze the first system difference result of comparing the first chassis system performance parameter with the pre-stored benchmark vehicle experience parameter, and the second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter, to obtain a chassis system analysis result, which is used to perform chassis evolution and select an evolution method; The basic chassis performance parameters include: front suspension system performance parameters, rear suspension system performance parameters and steering system performance parameters; The kinematic characteristics of the chassis are calculated according to the basic performance parameters of the chassis to generate corresponding first chassis system performance parameters, including: The kinematic characteristics of the chassis are calculated according to the hard point data in the front suspension system performance parameters, the rear suspension system performance parameters and the steering system performance parameters, respectively, to generate corresponding first chassis system performance parameters.

2. The method for analyzing the automobile chassis platform according to claim 1, characterized in that: Also includes: Calculating a first whole vehicle performance parameter according to the first chassis system performance parameter, and calculating a second whole vehicle performance parameter according to the second chassis system performance parameter; Analyze the first whole vehicle difference result of comparing the first whole vehicle performance parameter with the benchmark vehicle experience parameter, and the second whole vehicle difference result of comparing the second whole vehicle performance parameter with the benchmark vehicle experience parameter, to obtain a whole vehicle analysis result.

3. The method for analyzing the automobile chassis platform according to claim 2, characterized in that: The first vehicle performance parameter and the second vehicle performance parameter each include at least one of the following: Understeer, body roll, steering sensitivity and minimum turning diameter.

4. The method for analyzing the automobile chassis platform according to claim 1, characterized in that: After analyzing a first system difference result of comparing the first chassis system performance parameter with a pre-stored benchmark vehicle experience parameter and a second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter, and obtaining a chassis system analysis result, the method further includes: The chassis system analysis results are compared with a pre-stored empirical target range to obtain a system analysis report.

5. The method for analyzing the automobile chassis platform according to claim 2, characterized in that: After analyzing a first whole vehicle difference result of comparing the first whole vehicle performance parameter with the benchmark vehicle experience parameter and a second whole vehicle difference result of comparing the second whole vehicle performance parameter with the benchmark vehicle experience parameter, and obtaining a whole vehicle analysis result, the method further includes: The whole vehicle analysis result is compared with a pre-stored empirical target range to obtain a whole vehicle analysis report.

6. The method for analyzing the automobile chassis platform according to claim 4 or 5, characterized in that: The empirical target range is determined based on chassis performance parameters of multiple vehicles that have been entered.

7. An analysis device for an automobile chassis platform, characterized in that: include: Acquisition module, used to obtain vehicle model information and basic chassis performance parameters; A generating module, used for calculating the kinematic characteristics of the chassis according to the basic performance parameters of the chassis, and generating corresponding first chassis system performance parameters, wherein the first chassis system performance parameters are chassis system performance parameters before the evolution; A calculation module, for calculating a corresponding second chassis system performance parameter according to a derivative strategy in a target suspension calculation template in a pre-stored suspension calculation template library, wherein the second chassis system performance parameter is a derivative chassis system performance parameter; the derivative strategy is a relationship between the chassis kinematic characteristics and the front suspension system, the rear suspension system, and the steering system when they are in different spatial positions; An analysis module, used for analyzing a first system difference result of comparing the first chassis system performance parameter with a pre-stored benchmark vehicle experience parameter, and a second system difference result of comparing the second chassis system performance parameter with the benchmark vehicle experience parameter, to obtain a chassis system analysis result, which is used for chassis evolution and selection of an evolution method; The basic chassis performance parameters include: front suspension system performance parameters, rear suspension system performance parameters and steering system performance parameters; Wherein, the generation module is specifically used for: The kinematic characteristics of the chassis are calculated according to the hard point data in the front suspension system performance parameters, the rear suspension system performance parameters and the steering system performance parameters, respectively, to generate corresponding first chassis system performance parameters.

8. A readable storage medium, characterized in that: The readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the analysis method for the automobile chassis platform according to any one of claims 1 to 6 are implemented.

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