Automobile unit layout system and method based on automobile performance requirements

Abstract

The present invention provides an automobile unit layout system based on automobile performance requirements, comprising: an automobile unit characteristic evaluation module for establishing an automobile unit physical characteristic evaluation table based on the physical characteristics of the automobile units that can affect automobile performance when the positions of the automobile units are arranged, and evaluating whether each automobile unit has the automobile unit physical characteristics in the table in the automobile unit characteristic evaluation table; and an automobile performance correlation scoring module for determining the type of automobile performance affected by each automobile unit based on the type of automobile unit physical characteristics possessed by each automobile unit in the automobile unit characteristic evaluation table, and scoring the correlation between the type of automobile performance affected and the layout position of each automobile unit based on the type and number of automobile unit physical characteristics possessed by each automobile unit. Compared with the existing layout based on experience, the present invention can reduce the rework rate, improve efficiency, and also improve automobile performance.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile structures, and in particular to an automobile unit arrangement system and method based on automobile performance requirements. Background Art

[0002] The layout of automotive units must meet various requirements, including user needs, coordination, ergonomics, structural layout, product attributes, assembly and maintenance, and performance boundaries. Different layout options have a significant impact on performance. Since performance cannot be verified in advance, comprehensive consideration must be made in the early stages of layout design.

[0003] Existing layout principles rely primarily on engineers' experience. Current layouts often lack a grasp of performance boundaries, making it easy for performance to not meet requirements later, leading to corresponding design changes and costs. They also fail to properly prioritize different dimensions, putting the cart before the horse and resulting in irrational layout plans. This leads to performance failures during later solution verification, resulting in cost and cycle impacts caused by repeated solutions. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and provide an automobile unit layout system and method based on automobile performance requirements.

[0005] The present invention provides an automobile unit layout system based on automobile performance requirements, comprising:

[0006] an automobile unit characteristic evaluation module, configured to establish an automobile unit physical characteristic evaluation table based on automobile unit physical characteristics that may affect automobile performance when the positions of the automobile units are arranged, and to evaluate in the automobile unit characteristic evaluation table whether each automobile unit has the automobile unit physical characteristics in the table;

[0007] The vehicle performance correlation scoring module is used to determine the type of vehicle performance affected by each vehicle unit based on the type of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristic evaluation table, and to score the correlation between the type of affected vehicle performance and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics possessed by each vehicle unit. If a spatial conflict occurs when the vehicle units are arranged according to the layout principle, the corresponding vehicle units in conflict are arranged according to the vehicle performance correlation scores, and the layout priority is sorted. The higher the correlation score, the higher the layout priority, and the corresponding vehicle units in conflict are arranged according to the layout priority sorting.

[0008] Furthermore, it also includes: an automobile unit layout module, which is used to establish a layout principle for each automobile unit based on the scores and the physical characteristics of each automobile unit, and arrange the automobile units according to the layout principle. If a spatial conflict occurs when arranging the automobile units according to the layout principle, the corresponding automobile units that have caused the conflict are arranged according to the correlation score of the automobile performance. The higher the correlation score, the higher the layout priority. The corresponding automobile units that have caused the conflict are arranged according to the layout priority ranking.

[0009] Furthermore, the physical characteristics of the automobile unit include large mass, high rigidity, high temperature resistance, heat resistance, waterproofing requirement, self-excited vibration, fluid cavity, and maintenance requirement;

[0010] Among them, large mass is defined as mass ≥ 15kg, high rigidity is defined as the material of the automobile unit is cast iron or aluminum, high temperature is defined as the automobile unit itself can generate heat and the temperature is ≥ 80℃, and heat resistance is defined as the property that the increase in temperature can have an adverse effect on the performance of the automobile unit.

[0011] Furthermore, the vehicle performance includes NVH performance, pedestrian protection, heat damage resistance, handling stability, waterproofness, power economy, and ease of maintenance.

[0012] Furthermore, in the vehicle performance correlation scoring module, a specific method for determining the type of vehicle performance affected by each vehicle unit based on the type of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristic evaluation table is as follows:

[0013] Large mass affects NVH performance, pedestrian protection and handling stability;

[0014] High rigidity affects pedestrian protection;

[0015] High temperature affects heat damage;

[0016] Heat intolerance affects heat damage and power economy;

[0017] Need to waterproof affects waterproofness;

[0018] Self-excited vibration affects NVH performance;

[0019] Having fluid cavities affects NVH performance;

[0020] Maintenance required affects serviceability.

[0021] Furthermore, the vehicle performance correlation scoring module scores the correlation between the type of vehicle performance affected and the layout position of each vehicle unit according to the type and quantity of the vehicle unit physical characteristics of each vehicle unit as follows:

[0022]

[0023] in, For car units The layout of the car performance The relevance score of the impact, For car units Physical characteristics Car performance The relevance weight of For car units Affects vehicle performance The number of physical characteristics.

[0024] Furthermore, the automobile unit includes a powertrain, an air filter, an ESC, a cabin fuse box, a washer fluid pot, an ECU, an engine decorative cover, a cabin decorative cover, and an electric vacuum pump.

[0025] Furthermore, in the vehicle unit layout module, the layout principles of each vehicle unit are established based on the scores and the physical characteristics of each vehicle unit as follows:

[0026] The powertrain has the physical characteristics of large mass, high rigidity, thermal damage and self-excited vibration. According to the physical characteristics of large mass and high rigidity of the powertrain, the higher the powertrain height, the worse the pedestrian protection and handling stability of the car, and conversely, the better the pedestrian protection and handling stability of the car; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the difference in angle between the axial direction of the powertrain's output shaft and the wheel hub's center axis, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the powertrain's inclination angle, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's thermal damage, the closer the powertrain is to a heat-sensitive vehicle unit, the worse the car's thermal damage, and conversely, the better the car's thermal damage;

[0027] Air filters have the physical properties of being waterproof, heat-resistant, and having a fluid cavity. Based on the physical property of the air filter being waterproof, the higher the air inlet and bottom shell height, the better the car's waterproofness, and vice versa. Based on the physical property of the air filter being heat-resistant, the closer the air filter's air inlet is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa. Based on the physical property of the air filter having a fluid cavity, the smaller the volume of the fluid cavity inside the air filter, the better the car's NVH performance, and vice versa.

[0028] ESC has the physical properties of being heat-sensitive and highly rigid. Based on this physical property, the closer the ESC is to a high-temperature heat source, the worse the car's thermal resistance, and vice versa. Based on this physical property, the higher the ESC is installed, the worse the car's pedestrian protection, and vice versa.

[0029] The engine compartment fuse box has the physical property of being waterproof. According to the physical property of the engine compartment fuse box being waterproof, the higher the engine compartment fuse box is placed, the better the car's waterproofness is, and vice versa.

[0030] The ECU has physical properties that require it to be waterproof. Based on these physical properties, if the ECU connector is positioned upward, it will be detrimental to the car's waterproofness. If the ECU connector is positioned downward, it will be beneficial to the car's waterproofness.

[0031] The engine hood is heat-sensitive and requires maintenance. Therefore, installing an engine hood would be detrimental to the car's thermal resistance. Furthermore, providing access holes for the hood oil cap and oil dipstick on the hood would improve the car's maintainability.

[0032] Electric vacuum pumps are waterproof, self-excited vibrate and heat-sensitive. According to the physical property of electric vacuum pumps being waterproof, the higher the position of the air intake of the electric vacuum pump, the better the waterproofness of the car; according to the physical property of the self-excited vibration of the electric vacuum pump, fixing the electric vacuum pump on the car body through a bracket is not conducive to the NVH performance of the car, while fixing it on the powertrain is beneficial to the NVH performance of the car; according to the physical property of the heat-sensitiveness of the electric vacuum pump, the closer the electric vacuum pump is to the high-temperature heat source, the worse the heat damage resistance of the car.

[0033] A method for arranging automobile units based on automobile performance requirements comprises the following steps:

[0034] Establishing an automobile unit physical characteristics evaluation table based on automobile unit physical characteristics that can affect automobile performance when the positions of the automobile units are arranged, and evaluating whether each automobile unit has the automobile unit physical characteristics in the table in the automobile unit characteristics evaluation table;

[0035] Based on the types of automobile unit physical characteristics possessed by each automobile unit in the automobile unit characteristic evaluation table, the types of automobile performance affected by each automobile unit are judged, and based on the types and quantities of automobile unit physical characteristics possessed by each automobile unit, the correlation between the types of affected automobile performance and the layout positions of each automobile unit is scored.

[0036] Furthermore, based on the scores and the physical characteristics of each vehicle unit, a layout principle for each vehicle unit is established, and the vehicle units are arranged according to the layout principle. If spatial conflicts occur when arranging the vehicle units according to the layout principle, the corresponding vehicle units that have conflicts are arranged according to the correlation scores of the vehicle performance when arranging them. The higher the correlation score, the higher the layout priority. The vehicle units that have conflicts are arranged according to the layout priority ranking.

[0037] Furthermore, the physical characteristics of the automobile unit include large mass, high rigidity, high temperature resistance, heat resistance, waterproofing requirement, self-excited vibration, fluid cavity, and maintenance requirement;

[0038] Among them, large mass is defined as mass ≥ 15kg, high rigidity is defined as the material of the automobile unit is cast iron or aluminum, high temperature is defined as the automobile unit itself can generate heat and the temperature is ≥ 80℃, and heat resistance is defined as the property that the increase in temperature can have an adverse effect on the performance of the automobile unit.

[0039] Furthermore, the vehicle performance includes NVH performance, pedestrian protection, heat damage resistance, handling stability, waterproofness, power economy, and ease of maintenance.

[0040] Furthermore, the specific method for determining the type of vehicle performance affected by each vehicle unit based on the type of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristic evaluation table is as follows:

[0041] Large mass affects NVH performance, pedestrian protection and handling stability;

[0042] High rigidity affects pedestrian protection;

[0043] High temperature affects heat damage;

[0044] Heat intolerance affects heat damage and power economy;

[0045] Need to waterproof affects waterproofness;

[0046] Self-excited vibration affects NVH performance;

[0047] Having fluid cavities affects NVH performance;

[0048] Maintenance required affects serviceability.

[0049] Furthermore, the specific method for scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics of each vehicle unit is as follows:

[0050]

[0051] in, For car units The layout of the car performance The relevance score of the impact, For car units Physical characteristics Car performance The relevance weight of For car units Affects vehicle performance The number of physical characteristics.

[0052] Furthermore, the automobile unit includes a powertrain, an air filter, an ESC, a cabin fuse box, a washer fluid pot, an ECU, an engine decorative cover, a cabin decorative cover, and an electric vacuum pump.

[0053] Furthermore, based on the scores and the physical characteristics of each unit of the vehicle, the layout principles of each unit of the vehicle are established as follows:

[0054] The powertrain has the physical characteristics of large mass, high rigidity, thermal damage and self-excited vibration. According to the physical characteristics of large mass and high rigidity of the powertrain, the higher the powertrain height, the worse the pedestrian protection and handling stability of the car, and conversely, the better the pedestrian protection and handling stability of the car; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the difference in angle between the axial direction of the powertrain's output shaft and the wheel hub's center axis, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the powertrain's inclination angle, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's thermal damage, the closer the powertrain is to a heat-sensitive vehicle unit, the worse the car's thermal damage, and conversely, the better the car's thermal damage;

[0055] Air filters have the physical properties of being waterproof, heat-resistant, and having a fluid cavity. Based on the physical property of the air filter being waterproof, the higher the air inlet and bottom shell height, the better the car's waterproofness, and vice versa. Based on the physical property of the air filter being heat-resistant, the closer the air filter's air inlet is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa. Based on the physical property of the air filter having a fluid cavity, the smaller the volume of the fluid cavity inside the air filter, the better the car's NVH performance, and vice versa.

[0056] ESC has the physical properties of being heat-sensitive and highly rigid. Based on this physical property, the closer the ESC is to a high-temperature heat source, the worse the car's thermal resistance, and vice versa. Based on this physical property, the higher the ESC is installed, the worse the car's pedestrian protection, and vice versa.

[0057] The engine compartment fuse box has the physical property of being waterproof. According to the physical property of the engine compartment fuse box being waterproof, the higher the engine compartment fuse box is placed, the better the car's waterproofness is, and vice versa.

[0058] The ECU has physical properties that require it to be waterproof. Based on these physical properties, if the ECU connector is positioned upward, it will be detrimental to the car's waterproofness. If the ECU connector is positioned downward, it will be beneficial to the car's waterproofness.

[0059] The engine hood is heat-sensitive and requires maintenance. Therefore, installing an engine hood would be detrimental to the car's thermal resistance. Furthermore, providing access holes for the hood oil cap and oil dipstick on the hood would improve the car's maintainability.

[0060] Electric vacuum pumps are waterproof, self-excited vibrate and heat-sensitive. According to the physical property of electric vacuum pumps being waterproof, the higher the position of the air intake of the electric vacuum pump, the better the waterproofness of the car; according to the physical property of the self-excited vibration of the electric vacuum pump, fixing the electric vacuum pump on the car body through a bracket is not conducive to the NVH performance of the car, while fixing it on the powertrain is beneficial to the NVH performance of the car; according to the physical property of the heat-sensitiveness of the electric vacuum pump, the closer the electric vacuum pump is to the high-temperature heat source, the worse the heat damage resistance of the car.

[0061] A computer-readable medium having a computer program stored thereon, wherein the computer program, when executed, executes the step of scoring the correlation between the type of affected vehicle performance and the placement position of each vehicle unit based on the type and number of vehicle unit physical characteristics possessed by each vehicle unit in the above-mentioned vehicle unit placement method based on vehicle performance requirements.

[0062] An electronic device, characterized by comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the above-mentioned method for arranging automobile units based on automobile performance requirements, including the step of scoring the correlation between the type of affected automobile performance and the layout position of each automobile unit based on the type and number of automobile unit physical characteristics possessed by each automobile unit.

[0063] A computer program product, comprising a computer program / instructions, characterized in that when executed by a processor, the computer program / instructions implement the above-mentioned method for arranging automobile units based on automobile performance requirements, including the step of scoring the correlation between the type of affected automobile performance and the layout position of each automobile unit based on the type and number of automobile unit physical characteristics possessed by each automobile unit.

[0064] The beneficial effects of the present invention are:

[0065] 1. First, the physical characteristics of the vehicle units that can affect vehicle performance when their positions are arranged are listed. Then, all vehicle units are evaluated based on the listed characteristics to determine whether they possess these characteristics. Then, the impact of vehicle performance on the placement of the vehicle units is scored based on their physical characteristics. Finally, when arranging these vehicle units, layout principles are established and prioritized based on their physical characteristics and correlation scores. The final layout is completed based on the priority ranking. This establishes a set of correlation scoring rules and layout principles for the relationship between vehicle performance and vehicle units. This allows for the scientific placement of vehicle units, and any conflicts in placement space can be resolved based on priority ranking. Compared to existing arrangements based on experience, this reduces rework rates, improves efficiency, and enhances vehicle performance.

[0066] 2. By assigning correlation weights to each vehicle unit, units with the same physical characteristics will have different final performance scores. This allows for prioritization during layout, resolving layout conflicts and comprehensively improving vehicle performance by balancing the pros and cons. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 This is a system block diagram of the present invention. DETAILED DESCRIPTION

[0068] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0069] Example 1

[0070] refer to Figure 1 , an automobile unit layout system based on automobile performance requirements, comprising:

[0071] an automobile unit characteristic evaluation module, configured to establish an automobile unit physical characteristic evaluation table based on automobile unit physical characteristics that may affect automobile performance when the positions of the automobile units are arranged, and to evaluate in the automobile unit characteristic evaluation table whether each automobile unit has the automobile unit physical characteristics in the table;

[0072] The vehicle performance correlation scoring module is used to determine the type of vehicle performance affected by each vehicle unit based on the type of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristic evaluation table, and to score the correlation between the type of affected vehicle performance and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics possessed by each vehicle unit.

[0073] The vehicle unit layout module is used to establish a layout principle for each vehicle unit based on the scores and the physical characteristics of each vehicle unit, and to arrange the vehicle units according to the layout principle. If a spatial conflict occurs when arranging the vehicle units according to the layout principle, the corresponding vehicle units that have conflict are arranged according to the correlation score of the vehicle performance when arranging them. The higher the correlation score, the higher the layout priority. The vehicle units that have conflict are arranged according to the layout priority ranking.

[0074] (1) The physical characteristics of the automobile unit include large mass, high rigidity, high temperature, heat resistance, waterproofing, self-excited vibration, fluid cavity, and maintenance requirements;

[0075] Among them, large mass is defined as mass ≥ 15kg, high rigidity is defined as the material of the automobile unit is cast iron or aluminum, high temperature is defined as the automobile unit itself can generate heat and the temperature is ≥ 80℃, and heat resistance is defined as the property that the increase in temperature can have an adverse effect on the performance of the automobile unit.

[0076] The vehicle performance includes NVH performance, pedestrian protection, heat damage, handling stability, waterproofness, power economy, and ease of maintenance.

[0077] The automobile unit includes a powertrain, an air filter, an ESC, a cabin fuse box, a washer fluid pot, an ECU, an engine decorative cover, a cabin decorative cover, and an electric vacuum pump.

[0078] First, the physical characteristics of the vehicle units that can affect vehicle performance when the positions of the vehicle units are arranged are listed. Then, all vehicle units are evaluated based on the listed characteristics to determine whether these vehicle units have these characteristics. Then, the vehicle performance affected by the arrangement of the vehicle units is scored for relevance based on the physical characteristics of the vehicle units themselves. Finally, when arranging these vehicle units, layout principles are established and priorities are sorted based on their physical characteristics and relevance scores. The final layout is completed based on the priority sorting. In this way, a set of relevance scoring rules and layout principles are established for the relationship between vehicle performance and vehicle units. Therefore, the various vehicle units can be arranged scientifically, and when layout space conflicts occur, they can be resolved according to priority sorting. Compared with the existing layout based on experience, it can reduce the rework rate, improve efficiency, and improve vehicle performance.

[0079] (2) In the vehicle performance correlation scoring module, the specific method for determining the type of vehicle performance affected by each vehicle unit according to the type of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristics evaluation table is as follows:

[0080] Large mass affects NVH performance, pedestrian protection and handling stability;

[0081] High rigidity affects pedestrian protection;

[0082] High temperature affects heat damage;

[0083] Heat intolerance affects heat damage and power economy;

[0084] Need to waterproof affects waterproofness;

[0085] Self-excited vibration affects NVH performance;

[0086] Having fluid cavities affects NVH performance;

[0087] Maintenance required affects serviceability.

[0088] (3) The specific method of the vehicle performance correlation scoring module for scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit according to the type and number of vehicle unit physical characteristics of each vehicle unit is as follows:

[0089]

[0090] in, For car units The layout of the car performance The relevance score of the impact, For car units Physical characteristics Car performance The relevance weight of For car units Affects vehicle performance The number of physical characteristics.

[0091] Relevance Weight According to the expert group's evaluation, the same physical characteristics of each vehicle unit will not result in the same final performance score for the same vehicle. This can be used to prioritize the layout, resolve the problem of layout space conflicts, and comprehensively improve vehicle performance after weighing the pros and cons.

[0092] (4) In the vehicle unit layout module, the layout principles of each vehicle unit are established based on the scores and the physical characteristics of each vehicle unit as follows:

[0093] The powertrain has the physical characteristics of large mass, high rigidity, thermal damage and self-excited vibration. According to the physical characteristics of large mass and high rigidity of the powertrain, the higher the powertrain height, the worse the pedestrian protection and handling stability of the car, and conversely, the better the pedestrian protection and handling stability of the car; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the difference in angle between the axial direction of the powertrain's output shaft and the wheel hub's center axis, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the powertrain's inclination angle, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's thermal damage, the closer the powertrain is to a heat-sensitive vehicle unit, the worse the car's thermal damage, and conversely, the better the car's thermal damage;

[0094] The air filter has the physical properties of being waterproof, heat-resistant, and having a fluid cavity. Based on the physical property of the air filter being waterproof, the higher the height of the air inlet and the bottom shell, the better the car's waterproofness, and vice versa. The height of the air filter's air inlet affects the car's wading ability, and the height of the air filter's bottom shell affects the air filter's waterproof performance. Based on the air filter's physical property of being heat-resistant, the closer the air filter's air inlet is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa, the better the car's heat damage resistance, and the higher the temperature of the air entering the engine through the air inlet will affect the vehicle's power economy. Based on the physical property of the air filter having a fluid cavity, the smaller the volume of the fluid cavity inside the air filter, the better the car's NVH performance, and vice versa.

[0095] ESC has the physical properties of being heat-sensitive and highly rigid. Based on this physical property, the closer the ESC is to a high-temperature heat source, the worse the car's thermal resistance, and vice versa. Based on this physical property, the higher the ESC is installed, the worse the car's pedestrian protection, and vice versa.

[0096] The engine compartment fuse box has the physical property of being waterproof. According to the physical property of the engine compartment fuse box being waterproof, the higher the engine compartment fuse box is placed, the better the car's waterproofness is, and vice versa.

[0097] The ECU has physical properties that require it to be waterproof. Based on these physical properties, if the ECU connector is positioned upward, it will be detrimental to the car's waterproofness. If the ECU connector is positioned downward, it will be beneficial to the car's waterproofness.

[0098] The engine hood is heat-sensitive and requires maintenance. Therefore, installing an engine hood would be detrimental to the car's thermal resistance. Furthermore, providing access holes for the hood oil cap and oil dipstick on the hood would improve the car's maintainability.

[0099] Electric vacuum pumps are waterproof, self-excited vibrate and heat-sensitive. According to the physical property of electric vacuum pumps being waterproof, the higher the position of the air intake of the electric vacuum pump, the better the waterproofness of the car; according to the physical property of the self-excited vibration of the electric vacuum pump, fixing the electric vacuum pump on the car body through a bracket is not conducive to the NVH performance of the car, while fixing it on the powertrain is beneficial to the NVH performance of the car; according to the physical property of the heat-sensitiveness of the electric vacuum pump, the closer the electric vacuum pump is to the high-temperature heat source, the worse the heat damage resistance of the car.

[0100] Example 2

[0101] A method for arranging automobile units based on automobile performance requirements comprises the following steps:

[0102] Establishing an automobile unit physical characteristics evaluation table based on automobile unit physical characteristics that can affect automobile performance when the positions of the automobile units are arranged, and evaluating whether each automobile unit has the automobile unit physical characteristics in the table in the automobile unit characteristics evaluation table;

[0103] Based on the types of automobile unit physical characteristics possessed by each automobile unit in the automobile unit characteristic evaluation table, the types of automobile performance affected by each automobile unit are judged, and based on the types and quantities of automobile unit physical characteristics possessed by each automobile unit, the correlation between the types of affected automobile performance and the layout positions of each automobile unit is scored.

[0104] Based on the scores and the physical characteristics of each vehicle unit, a layout principle for each vehicle unit is established, and the vehicle units are arranged according to the layout principle. If spatial conflicts occur when arranging the vehicle units according to the layout principle, the corresponding vehicle units that have conflicts are arranged according to the correlation scores of the vehicle performance when arranging them. The higher the correlation score, the higher the layout priority. The vehicle units are arranged according to the layout priority ranking of the corresponding vehicle units that have conflicts.

[0105] (1) The physical characteristics of the automobile unit include large mass, high rigidity, high temperature, heat resistance, waterproofing, self-excited vibration, fluid cavity, and maintenance requirements;

[0106] Among them, large mass is defined as mass ≥ 15kg, high rigidity is defined as the material of the automobile unit is cast iron or aluminum, high temperature is defined as the automobile unit itself can generate heat and the temperature is ≥ 80℃, and heat resistance is defined as the property that the increase in temperature can have an adverse effect on the performance of the automobile unit.

[0107] The vehicle performance includes NVH performance, pedestrian protection, heat damage, handling stability, waterproofness, power economy, and ease of maintenance.

[0108] The automobile unit includes a powertrain, an air filter, an ESC, a cabin fuse box, a washer fluid pot, an ECU, an engine decorative cover, a cabin decorative cover, and an electric vacuum pump.

[0109] First, the physical characteristics of the vehicle units that can affect vehicle performance when the positions of the vehicle units are arranged are listed. Then, all vehicle units are evaluated based on the listed characteristics to determine whether these vehicle units have these characteristics. Then, the vehicle performance affected by the arrangement of the vehicle units is scored for relevance based on the physical characteristics of the vehicle units themselves. Finally, when arranging these vehicle units, layout principles are established and priorities are sorted based on their physical characteristics and relevance scores. The final layout is completed based on the priority sorting. In this way, a set of relevance scoring rules and layout principles are established for the relationship between vehicle performance and vehicle units. Therefore, the various vehicle units can be arranged scientifically, and when layout space conflicts occur, they can be resolved according to priority sorting. Compared with the existing layout based on experience, it can reduce the rework rate, improve efficiency, and improve vehicle performance.

[0110] (2) The specific method for determining the type of vehicle performance affected by each vehicle unit based on the type of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristics evaluation table is as follows:

[0111] Large mass affects NVH performance, pedestrian protection and handling stability;

[0112] High rigidity affects pedestrian protection;

[0113] High temperature affects heat damage;

[0114] Heat intolerance affects heat damage and power economy;

[0115] Need to waterproof affects waterproofness;

[0116] Self-excited vibration affects NVH performance;

[0117] Having fluid cavities affects NVH performance;

[0118] Maintenance required affects serviceability.

[0119] (3) The specific method for scoring the correlation between the type of vehicle performance affected and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics of each vehicle unit is as follows:

[0120]

[0121] in, For car units The layout of the car performance The relevance score of the impact, For car units Physical characteristics Car performance The relevance weight of For car units Affects vehicle performance The number of physical characteristics.

[0122] Relevance Weight According to the expert group's evaluation, the same physical characteristics of each vehicle unit will not result in the same final performance score for the same vehicle. This can be used to prioritize the layout, resolve the problem of layout space conflicts, and comprehensively improve vehicle performance after weighing the pros and cons.

[0123] (4) Based on the above scores and the physical characteristics of each unit of the vehicle, the layout principles of each unit of the vehicle are established as follows:

[0124] The powertrain has the physical characteristics of large mass, high rigidity, thermal damage and self-excited vibration. According to the physical characteristics of large mass and high rigidity of the powertrain, the higher the powertrain height, the worse the pedestrian protection and handling stability of the car, and conversely, the better the pedestrian protection and handling stability of the car; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the difference in angle between the axial direction of the powertrain's output shaft and the wheel hub's center axis, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the powertrain's inclination angle, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's thermal damage, the closer the powertrain is to a heat-sensitive vehicle unit, the worse the car's thermal damage, and conversely, the better the car's thermal damage;

[0125] The air filter has the physical properties of being waterproof, heat-resistant, and having a fluid cavity. Based on the physical property of the air filter being waterproof, the higher the height of the air inlet and the bottom shell, the better the car's waterproofness, and vice versa. The height of the air filter's air inlet affects the car's wading ability, and the height of the air filter's bottom shell affects the air filter's waterproof performance. Based on the air filter's physical property of being heat-resistant, the closer the air filter's air inlet is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa, the better the car's heat damage resistance, and the higher the temperature of the air entering the engine through the air inlet will affect the vehicle's power economy. Based on the physical property of the air filter having a fluid cavity, the smaller the volume of the fluid cavity inside the air filter, the better the car's NVH performance, and vice versa.

[0126] ESC has the physical properties of being heat-sensitive and highly rigid. Based on this physical property, the closer the ESC is to a high-temperature heat source, the worse the car's thermal resistance, and vice versa. Based on this physical property, the higher the ESC is installed, the worse the car's pedestrian protection, and vice versa.

[0127] The engine compartment fuse box has the physical property of being waterproof. According to the physical property of the engine compartment fuse box being waterproof, the higher the engine compartment fuse box is placed, the better the car's waterproofness is, and vice versa.

[0128] The ECU has physical properties that require it to be waterproof. Based on these physical properties, if the ECU connector is positioned upward, it will be detrimental to the car's waterproofness. If the ECU connector is positioned downward, it will be beneficial to the car's waterproofness.

[0129] The engine hood is heat-sensitive and requires maintenance. Therefore, installing an engine hood would be detrimental to the car's thermal resistance. Furthermore, providing access holes for the hood oil cap and oil dipstick on the hood would improve the car's maintainability.

[0130] Electric vacuum pumps are waterproof, self-excited vibrate and heat-sensitive. According to the physical property of electric vacuum pumps being waterproof, the higher the position of the air intake of the electric vacuum pump, the better the waterproofness of the car; according to the physical property of the self-excited vibration of the electric vacuum pump, fixing the electric vacuum pump on the car body through a bracket is not conducive to the NVH performance of the car, while fixing it on the powertrain is beneficial to the NVH performance of the car; according to the physical property of the heat-sensitiveness of the electric vacuum pump, the closer the electric vacuum pump is to the high-temperature heat source, the worse the heat damage resistance of the car.

[0131] Example 3

[0132] A computer-readable medium having a computer program stored thereon, wherein the computer program, when executed, executes the step of scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics possessed by each vehicle unit in Example 2.

[0133] Example 4

[0134] An electronic device, characterized by comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the step of scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics possessed by each vehicle unit in Example 2.

[0135] Example 5

[0136] A computer program product, comprising a computer program / instructions, characterized in that when the computer program / instructions are executed by a processor, the steps of Embodiment 2 are implemented, including scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics possessed by each vehicle unit.

[0137] Any material not described in detail in this specification is prior art known to those skilled in the art. Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0138] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, 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 produce 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 flowcharts and / or block diagrams. 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.

[0139] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0140] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that after reading the present invention, those skilled in the art may still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

Claims

1. An automobile unit layout system based on automobile performance requirements, characterized in that: include: an automobile unit characteristic evaluation module, configured to establish an automobile unit physical characteristic evaluation table based on automobile unit physical characteristics that may affect automobile performance when the positions of the automobile units are arranged, and to evaluate in the automobile unit characteristic evaluation table whether each automobile unit has the automobile unit physical characteristics in the table; The vehicle performance correlation scoring module is used to determine the type of vehicle performance affected by each vehicle unit based on the type of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristic evaluation table, and to score the correlation between the type of vehicle performance affected by the vehicle unit's own physical characteristics and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics possessed by each vehicle unit; an automobile unit placement module, configured to establish a placement principle for each automobile unit based on the scores and the physical characteristics of each automobile unit, and to arrange the automobile units according to the placement principle; if spatial conflicts arise when arranging the automobile units according to the placement principle, the conflicting automobile units are arranged according to a placement priority ranking based on the vehicle performance relevance scores, with higher relevance scores giving higher placement priorities, and the conflicting automobile units are arranged according to the placement priority ranking; The physical characteristics of the automobile unit include large mass, high rigidity, high temperature, heat resistance, waterproofing, self-excited vibration, fluid cavity, and maintenance requirements; High mass is defined as mass ≥ A, high rigidity is defined as the material of the automobile unit is cast iron or aluminum, high temperature is defined as the automobile unit itself can generate heat and the temperature is ≥ B, and heat resistance is defined as the property that the increase in temperature can have an adverse effect on the performance of the automobile unit.

2. The automobile unit layout system based on automobile performance requirements according to claim 1, characterized in that: The vehicle performance includes NVH performance, pedestrian protection, heat damage, handling stability, waterproofness, power economy, and ease of maintenance.

3. The automobile unit layout system based on automobile performance requirements according to claim 2, characterized in that: In the vehicle performance relevance scoring module, a specific method for determining the type of vehicle performance affected by each vehicle unit based on the type of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristics evaluation table is as follows: Large mass affects NVH performance, pedestrian protection and handling stability; High rigidity affects pedestrian protection; High temperature affects heat damage; Heat intolerance affects heat damage and power economy; Need to waterproof affects waterproofness; Self-excited vibration affects NVH performance; Having fluid cavities affects NVH performance; Maintenance required affects serviceability.

4. The automobile unit layout system based on automobile performance requirements according to claim 1, characterized in that: The vehicle performance correlation scoring module scores the correlation between the type of vehicle performance affected and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics of each vehicle unit as follows: in, For car units The layout of the car performance The relevance score of the impact, For car units Physical characteristics Car performance The relevance weight of For car units Affects vehicle performance The number of physical characteristics.

5. The automobile unit layout system based on automobile performance requirements according to claim 2, characterized in that: The automobile unit includes a powertrain, an air filter, an ESC, a cabin fuse box, a washer fluid pot, an ECU, an engine decorative cover, a cabin decorative cover, and an electric vacuum pump.

6. The automobile unit layout system based on automobile performance requirements according to claim 5, characterized in that: In the vehicle unit layout module, the layout principles of each vehicle unit are established based on the scores and the physical characteristics of each vehicle unit as follows: The powertrain has the physical characteristics of large mass, high rigidity, thermal damage and self-excited vibration. According to the physical characteristics of large mass and high rigidity of the powertrain, the higher the powertrain height, the worse the pedestrian protection and handling stability of the car, and conversely, the better the pedestrian protection and handling stability of the car; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the difference in angle between the axial direction of the powertrain's output shaft and the wheel hub's center axis, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the powertrain's inclination angle, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's thermal damage, the closer the powertrain is to a heat-sensitive vehicle unit, the worse the car's thermal damage, and conversely, the better the car's thermal damage; Air filters have the physical properties of being waterproof, heat-resistant, and having a fluid cavity. Based on the physical property of the air filter being waterproof, the higher the air inlet and bottom shell height, the better the car's waterproofness, and vice versa. Based on the physical property of the air filter being heat-resistant, the closer the air filter's air inlet is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa. Based on the physical property of the air filter having a fluid cavity, the smaller the volume of the fluid cavity inside the air filter, the better the car's NVH performance, and vice versa. ESC has the physical properties of being heat-sensitive and highly rigid. Based on this physical property, the closer the ESC is to a high-temperature heat source, the worse the car's thermal resistance, and vice versa. Based on this physical property, the higher the ESC is installed, the worse the car's pedestrian protection, and vice versa. The engine compartment fuse box has the physical property of being waterproof. According to the physical property of the engine compartment fuse box being waterproof, the higher the engine compartment fuse box is placed, the better the car's waterproofness is, and vice versa. The ECU has physical properties that require it to be waterproof. Based on these physical properties, if the ECU connector is positioned upward, it will be detrimental to the car's waterproofness. If the ECU connector is positioned downward, it will be beneficial to the car's waterproofness. The engine hood is heat-sensitive and requires maintenance. Therefore, installing an engine hood would be detrimental to the car's thermal resistance. Furthermore, providing access holes for the hood oil cap and oil dipstick on the hood would improve the car's maintainability. Electric vacuum pumps are waterproof, self-excited vibrate and heat-sensitive. According to the physical property of electric vacuum pumps being waterproof, the higher the position of the air intake of the electric vacuum pump, the better the waterproofness of the car; according to the physical property of the self-excited vibration of the electric vacuum pump, fixing the electric vacuum pump on the car body through a bracket is not conducive to the NVH performance of the car, while fixing it on the powertrain is beneficial to the NVH performance of the car; according to the physical property of the heat-sensitiveness of the electric vacuum pump, the closer the electric vacuum pump is to the high-temperature heat source, the worse the heat damage resistance of the car.

7. A method for arranging automobile units based on automobile performance requirements, characterized in that: The steps include: Establishing an automobile unit physical characteristics evaluation table based on automobile unit physical characteristics that can affect automobile performance when the positions of the automobile units are arranged, and evaluating whether each automobile unit has the automobile unit physical characteristics in the table in the automobile unit characteristics evaluation table; Based on the types of physical characteristics of each vehicle unit in the vehicle unit characteristic evaluation table, determine the types of vehicle performance affected by each vehicle unit, and based on the types and number of physical characteristics of each vehicle unit, score the correlation between the types of vehicle performance affected by the physical characteristics of the vehicle unit itself and the layout position of each vehicle unit; Establishing a layout principle for each vehicle unit based on the scores and the physical characteristics of each vehicle unit, and performing the layout according to the layout principle for each vehicle unit; if spatial conflicts occur when arranging the vehicle units according to the layout principle, prioritizing the layout of the conflicting vehicle units according to the vehicle performance relevance scores when arranging the conflicting vehicle units, with higher relevance scores giving higher layout priorities, and performing the layout according to the layout priority ranking of the conflicting vehicle units; The physical characteristics of the automobile unit include large mass, high rigidity, high temperature, heat resistance, waterproofing, self-excited vibration, fluid cavity, and maintenance requirements; High mass is defined as mass ≥ A, high rigidity is defined as the material of the automobile unit is cast iron or aluminum, high temperature is defined as the automobile unit itself can generate heat and the temperature is ≥ B, and heat resistance is defined as the property that the increase in temperature can have an adverse effect on the performance of the automobile unit.

8. The automobile unit layout system based on automobile performance requirements according to claim 7, characterized in that: The vehicle performance includes NVH performance, pedestrian protection, heat damage, handling stability, waterproofness, power economy, and ease of maintenance.

9. The automobile unit layout system based on automobile performance requirements according to claim 8, characterized in that: The specific method for determining the type of vehicle performance affected by each vehicle unit based on the type of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristics evaluation table is as follows: Large mass affects NVH performance, pedestrian protection and handling stability; High rigidity affects pedestrian protection; High temperature affects heat damage; Heat intolerance affects heat damage and power economy; Need to waterproof affects waterproofness; Self-excited vibration affects NVH performance; Having fluid cavities affects NVH performance; Maintenance required affects serviceability.

10. The automobile unit layout system based on automobile performance requirements according to claim 7, characterized in that: The specific method for scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics of each vehicle unit is as follows: in, For car units The layout of the car performance The relevance score of the impact, For car units Physical characteristics Car performance The relevance weight of For car units Affects vehicle performance The number of physical characteristics.

11. The automobile unit layout system based on automobile performance requirements according to claim 9, characterized in that: The automobile unit includes a powertrain, an air filter, an ESC, a cabin fuse box, a washer fluid pot, an ECU, an engine decorative cover, a cabin decorative cover, and an electric vacuum pump.

12. The automobile unit layout system based on automobile performance requirements according to claim 11, characterized in that: Based on the scores and the physical characteristics of each unit of the car, the layout principles of each unit of the car are established as follows: The powertrain has the physical characteristics of large mass, high rigidity, thermal damage and self-excited vibration. According to the physical characteristics of large mass and high rigidity of the powertrain, the higher the powertrain height, the worse the pedestrian protection and handling stability of the car, and conversely, the better the pedestrian protection and handling stability of the car; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the difference in angle between the axial direction of the powertrain's output shaft and the wheel hub's center axis, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's self-excited vibration, the smaller the powertrain's inclination angle, the better the car's NVH performance, and conversely, the worse the car's NVH performance; according to the physical characteristics of the powertrain's thermal damage, the closer the powertrain is to a heat-sensitive vehicle unit, the worse the car's thermal damage, and conversely, the better the car's thermal damage; Air filters have the physical properties of being waterproof, heat-resistant, and having a fluid cavity. Based on the physical property of the air filter being waterproof, the higher the air inlet and bottom shell height, the better the car's waterproofness, and vice versa. Based on the physical property of the air filter being heat-resistant, the closer the air filter's air inlet is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa. Based on the physical property of the air filter having a fluid cavity, the smaller the volume of the fluid cavity inside the air filter, the better the car's NVH performance, and vice versa. ESC has the physical properties of being heat-sensitive and highly rigid. Based on this physical property, the closer the ESC is to a high-temperature heat source, the worse the car's thermal resistance, and vice versa. Based on this physical property, the higher the ESC is installed, the worse the car's pedestrian protection, and vice versa. The engine compartment fuse box has the physical property of being waterproof. According to the physical property of the engine compartment fuse box being waterproof, the higher the engine compartment fuse box is placed, the better the car's waterproofness is, and vice versa. The ECU has physical properties that require it to be waterproof. Based on these physical properties, if the ECU connector is positioned upward, it will be detrimental to the car's waterproofness. If the ECU connector is positioned downward, it will be beneficial to the car's waterproofness. The engine hood is heat-sensitive and requires maintenance. Therefore, installing an engine hood would be detrimental to the car's thermal resistance. Furthermore, providing access holes for the hood oil cap and oil dipstick on the hood would improve the car's maintainability. Electric vacuum pumps are waterproof, self-excited vibrate and heat-sensitive. According to the physical property of electric vacuum pumps being waterproof, the higher the position of the air intake of the electric vacuum pump, the better the waterproofness of the car; according to the physical property of the self-excited vibration of the electric vacuum pump, fixing the electric vacuum pump on the car body through a bracket is not conducive to the NVH performance of the car, while fixing it on the powertrain is beneficial to the NVH performance of the car; according to the physical property of the heat-sensitiveness of the electric vacuum pump, the closer the electric vacuum pump is to the high-temperature heat source, the worse the heat damage resistance of the car.

13. A computer-readable medium having a computer program stored thereon, wherein the computer program, when executed, executes the step of scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit layout method based on vehicle performance requirements as claimed in claim 7.

14. An electronic device, characterized in that: include: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the step of scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit based on the type and number of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit layout method based on vehicle performance requirements as claimed in claim 7.

15. A computer program product comprising a computer program / instructions, characterized in that When executed by a processor, the computer program / instructions implement the method for arranging automobile units based on automobile performance requirements as described in claim 7, including the step of scoring the correlation between the type of affected automobile performance and the layout position of each automobile unit based on the type and number of automobile unit physical characteristics possessed by each automobile unit.

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