Automobile unit arrangement system and method based on automobile performance requirements

Abstract

The invention provides an automobile unit arrangement system based on automobile performance requirements, and the system comprises an automobile unit characteristic evaluation module which is used for building an automobile unit physical characteristic evaluation table according to the automobile unit physical characteristics which can affect the automobile performance when the position of an automobile unit is arranged, evaluating whether each unit of the automobile has the physical characteristics of the automobile unit in an automobile unit characteristic evaluation table or not; the automobile performance correlation scoring module is used for judging the types of the automobile performance influenced by each unit of the automobile according to the types of the automobile unit physical characteristics of each unit of the automobile in the automobile unit characteristic evaluation table, and determining the automobile performance according to the types and the number of the automobile unit physical characteristics of each unit of the automobile; and the correlation between the type of the influenced automobile performance and the arrangement position of each unit of the automobile is scored. Compared with the existing situation that arrangement is carried out according to experience, the method has the advantages that the reverse work rate can be reduced, the efficiency is improved, and the automobile performance can also be improved.

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 the vehicle unit needs to meet various requirements such as user needs, coordination, ergonomics, structural layout, product attributes, assembly and maintenance, performance boundaries, etc. Different layout schemes have a huge impact on performance. Since the early performance cannot be verified, it must be considered in the early stage of layout design.

[0003] The existing layout principles mainly rely on the experience of engineers. The current layout does not fully grasp the boundary requirements of performance, which can easily lead to corresponding design changes and costs due to performance failure in the later stage. It can also fail to reasonably consider the priority of different dimensions, and put the cart before the horse, resulting in unreasonable layout plans. When the performance does not meet the requirements during the later solution verification, the cost and cycle impact of the solution repetition are caused. Summary of the invention

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

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

[0006] An automobile unit characteristic evaluation module, used to establish an automobile unit physical characteristic evaluation table according to the automobile unit physical characteristics that can affect the automobile performance when the automobile unit is 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 automobile performance correlation scoring module is used to determine the types of automobile performance affected by each automobile unit according to the types of automobile unit physical characteristics possessed by each automobile unit in the automobile unit characteristic evaluation table, and to score the correlation between the types of automobile performance affected and the layout positions of each automobile unit according to the types and quantities of automobile unit physical characteristics possessed by each automobile unit. If a conflict occurs in space when the automobile units are arranged according to the layout principle, the corresponding automobile units in conflict are arranged according to the automobile performance correlation scores, and the layout priorities are sorted. The higher the correlation score, the higher the layout priority, and the layout is performed according to the layout priority ranking of the corresponding automobile units in conflict.

[0008] Furthermore, it also includes: an automobile unit layout module, which is used to establish a layout principle for each automobile unit according to the score and the physical characteristics of each automobile unit, and arrange the automobile units according to the layout principle. If a conflict occurs in space when arranging the automobile units according to the layout principle, the corresponding automobile units that have 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 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, heat resistance, need for waterproofing, self-excited vibration, fluid cavity, and need for maintenance;

[0010] Among them, large 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.

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

[0012] Furthermore, in the automobile performance correlation scoring module, according to the types of automobile unit physical characteristics possessed by each automobile unit in the automobile unit characteristic evaluation table, a specific method for determining the types of automobile performance affected by each automobile unit 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 water resistance;

[0018] Self-excited vibration affects NVH performance;

[0019] Having fluid cavities affects NVH performance;

[0020] The need for maintenance affects the ease of repair.

[0021] Furthermore, the specific method of the vehicle performance correlation scoring module for scoring 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 is as follows:

[0022] S i,t =∑γ i,k,t N i,t

[0023] Among them, S i,t is the relevance score of the layout of vehicle unit i on vehicle performance t, γ i,t is the relevance weight of the physical characteristic k of vehicle unit i to vehicle performance t, N i,t is the number of physical characteristics of vehicle unit i that affect vehicle performance t.

[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 automobile unit layout module, according to the scores and the physical characteristics of each automobile unit, the layout principles of each automobile unit are established 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 height of the powertrain, the worse the pedestrian protection and handling stability of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the difference between the axial direction of the output shaft of the powertrain and the center axis of the wheel hub, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the inclination angle of the powertrain, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the thermal damage of the powertrain, the closer the distance between the powertrain and the heat-intolerant car unit is, the worse the thermal damage of the car, and vice versa. The thermal damage of the car is better;

[0027] The air filter has the physical properties of being waterproof, heat-resistant and having a fluid cavity. According to the physical property of the air filter being waterproof, the higher the air inlet and the bottom shell height, the better the car's waterproofness, and vice versa. According to the physical property of the air filter being heat-resistant, the closer the air inlet of the air filter is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa. According to 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-resistant and highly rigid. Based on the physical properties of being heat-resistant, the closer the distance between ESC and the high-temperature heat source, the worse the heat damage resistance of the car, and vice versa. Based on the physical properties of being highly rigid, the higher the ESC is arranged, the worse the pedestrian protection of the car, and vice versa.

[0029] The engine room fuse box has the physical property of being waterproof. According to the physical property of the engine room fuse box being waterproof, the higher the engine room fuse box should be arranged, the better the waterproofness of the car, and vice versa.

[0030] ECU has the physical property of being waterproof. According to the physical property of ECU being waterproof, if the position of the ECU plug interface is facing upward, it is not conducive to the waterproofness of the car. If the position of the ECU plug interface is facing downward, it is conducive to the waterproofness of the car.

[0031] The engine decorative cover has the physical characteristics of being heat-resistant and requiring maintenance. According to the physical characteristics of the engine decorative cover being heat-resistant, if the engine decorative cover is provided, it will be disadvantageous to the heat damage of the automobile; according to the physical characteristics of the engine decorative cover requiring maintenance, if the engine decorative cover is provided with operation holes for the engine oil cap and the oil dipstick, it will be beneficial to the maintenance convenience of the automobile;

[0032] The electric vacuum pump has the characteristics of waterproofing, self-excited vibration and heat resistance. According to the physical property of the electric vacuum pump 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 good for 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 electric vacuum pump being heat-resistant, 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 according to the automobile unit physical characteristics that can affect the automobile performance when the automobile unit is arranged, and evaluating whether each automobile unit has the automobile unit physical characteristics in the table in the automobile unit characteristic evaluation table;

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

[0036] Furthermore, the automobile unit arrangement module is used to establish arrangement principles for the automobile units according to the scores and the physical characteristics of the automobile units, and arrange the automobile units according to the arrangement principles. If a spatial conflict occurs when the automobile units are arranged according to the arrangement principles, the corresponding automobile units that have conflict are arranged according to the correlation scores of the automobile performance. The higher the correlation score, the higher the arrangement priority. The corresponding automobile units that have conflict are arranged according to the arrangement priority ranking.

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

[0038] Among them, large 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.

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

[0040] Furthermore, in the vehicle performance correlation scoring module, according to the types of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristic evaluation table, a specific method for determining the types of vehicle performance affected by each vehicle unit 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 water resistance;

[0046] Self-excited vibration affects NVH performance;

[0047] Having fluid cavities affects NVH performance;

[0048] The need for maintenance affects the ease of repair.

[0049] Furthermore, the specific method of the vehicle performance correlation scoring module for scoring 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 is as follows:

[0050] S i,t =∑γ i,k,t N i,t

[0051] Among them, S i,t is the relevance score of the layout of vehicle unit i on vehicle performance t, γ i,t is the relevance weight of the physical characteristic k of vehicle unit i to vehicle performance t, N i,t is the number of physical characteristics of vehicle unit i that affect vehicle performance t.

[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, in the automobile unit layout module, according to the scores and the physical characteristics of each automobile unit, the layout principles of each automobile unit 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 height of the powertrain, the worse the pedestrian protection and handling stability of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the difference between the axial direction of the output shaft of the powertrain and the center axis of the wheel hub, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the inclination angle of the powertrain, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the thermal damage of the powertrain, the closer the distance between the powertrain and the heat-intolerant car unit is, the worse the thermal damage of the car, and vice versa. The thermal damage of the car is better;

[0055] The air filter has the physical properties of being waterproof, heat-resistant and having a fluid cavity. According to the physical property of the air filter being waterproof, the higher the air inlet and the bottom shell height, the better the car's waterproofness, and vice versa. According to the physical property of the air filter being heat-resistant, the closer the air inlet of the air filter is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa. According to 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-resistant and highly rigid. Based on the physical properties of being heat-resistant, the closer the distance between ESC and the high-temperature heat source, the worse the heat damage resistance of the car, and vice versa. Based on the physical properties of being highly rigid, the higher the ESC is arranged, the worse the pedestrian protection of the car, and vice versa.

[0057] The engine room fuse box has the physical property of being waterproof. According to the physical property of the engine room fuse box being waterproof, the higher the engine room fuse box should be arranged, the better the waterproofness of the car, and vice versa.

[0058] ECU has the physical property of being waterproof. According to the physical property of ECU being waterproof, if the position of the ECU plug interface is facing upward, it is not conducive to the waterproofness of the car. If the position of the ECU plug interface is facing downward, it is conducive to the waterproofness of the car.

[0059] The engine decorative cover has the physical characteristics of being heat-resistant and requiring maintenance. According to the physical characteristics of the engine decorative cover being heat-resistant, if the engine decorative cover is provided, it will be disadvantageous to the heat damage of the automobile; according to the physical characteristics of the engine decorative cover requiring maintenance, if the engine decorative cover is provided with operation holes for the engine oil cap and the oil dipstick, it will be beneficial to the maintenance convenience of the automobile;

[0060] The electric vacuum pump has the characteristics of waterproofing, self-excited vibration and heat resistance. According to the physical property of the electric vacuum pump 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 good for 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 electric vacuum pump being heat-resistant, 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 run, executes the step of scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit according to the type and quantity of vehicle unit physical characteristics possessed by each vehicle unit in the above-mentioned vehicle unit layout method based on vehicle performance requirements.

[0062] An electronic device, characterized in that it comprises: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the above-mentioned method for arranging automobile units based on automobile performance requirements, the step of scoring the correlation between the type of automobile performance affected and the arrangement position of each automobile unit according to the type and quantity of automobile unit physical characteristics possessed by each automobile unit.

[0063] A computer program product, comprising a computer program / instruction, characterized in that when the computer program / instruction is executed by a processor, the method for arranging automobile units based on automobile performance requirements is implemented, wherein the correlation between the type of automobile performance affected and the arrangement position of each automobile unit is scored according to the type and quantity 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 automobile units that can affect the performance of the automobile when the positions of the automobile units are arranged are listed, and then all the automobile units are evaluated according to the listed characteristics to evaluate whether these automobile units have these characteristics, and then the automobile performance affected by the layout of the automobile units is scored according to the physical characteristics of the automobile units themselves. Finally, when these automobile units are arranged, the layout principles are established and the priorities are sorted according to their own physical characteristics and correlation scores. The final layout is completed according to the priority sorting. In this way, a set of correlation scoring rules and layout principles are established for the connection between automobile performance and automobile units. Therefore, the various units of the automobile can be arranged scientifically, and when there is a layout space conflict, it can be resolved according to the priority sorting. Compared with the existing layout based on experience, it can reduce the rework rate, improve efficiency, and improve automobile performance.

[0066] 2. Assign correlation weights to each unit of the car, so the same physical characteristics of each unit of the car will not have the same final score for the same car performance. Priority can be used to sort them out during layout, solving the problem of layout space conflicts and comprehensively improving car performance after weighing 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 the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present 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, used to establish an automobile unit physical characteristic evaluation table according to the automobile unit physical characteristics that can affect the automobile performance when the automobile unit is 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 automobile performance correlation scoring module is used to judge the types of automobile performance affected by each automobile unit according to the types of automobile unit physical characteristics possessed by each automobile unit in the automobile unit characteristic evaluation table, and to score the correlation between the types of affected automobile performance and the layout positions of each automobile unit according to the types and quantities of automobile unit physical characteristics possessed by each automobile unit.

[0073] The vehicle unit layout module is used to establish a layout principle for each vehicle unit according to the score and the physical characteristics of each vehicle unit, and to arrange the vehicle units according to the layout principle. If a conflict occurs in space 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. 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 automobile performance includes NVH performance, pedestrian protection, heat damage, handling stability, waterproofness, power economy, and maintenance convenience.

[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 automobile units that can affect the performance of the automobile when the positions of the automobile units are arranged are listed, and then all the automobile units are evaluated according to the listed characteristics to evaluate whether these automobile units have these characteristics. Then, the automobile performance affected by the arrangement of the automobile units is scored according to the physical characteristics of the automobile units themselves. Finally, when these automobile units are arranged, the layout principles are established and the priorities are sorted according to their own physical characteristics and correlation scores. The final layout is completed according to the priority sorting. In this way, a set of correlation scoring rules and layout principles are established for the connection between automobile performance and automobile units. Therefore, the various units of the automobile can be arranged scientifically, and when there is a conflict in the layout space, it can be resolved according to the priority sorting. Compared with the existing arrangement based on experience, it can reduce the rework rate, improve efficiency, and improve automobile 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 characteristic 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 water resistance;

[0085] Self-excited vibration affects NVH performance;

[0086] Having fluid cavities affects NVH performance;

[0087] The need for maintenance affects the ease of repair.

[0088] (3) The specific method of the vehicle performance correlation scoring module for scoring 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 is as follows:

[0089] S i,t =∑γ i,k,t N i,t

[0090] Among them, S i,t is the relevance score of the layout of vehicle unit i on vehicle performance t, γ i,t is the relevance weight of the physical characteristic k of vehicle unit i to vehicle performance t, N i,t is the number of physical characteristics of vehicle unit i that affect vehicle performance t.

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

[0092] (4) In the vehicle unit layout module, the layout principles of the vehicle units are established based on the scores and the physical characteristics of the vehicle units 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 height of the powertrain, the worse the pedestrian protection and handling stability of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the difference between the axial direction of the output shaft of the powertrain and the center axis of the wheel hub, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the inclination angle of the powertrain, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the thermal damage of the powertrain, the closer the distance between the powertrain and the heat-intolerant car unit is, the worse the thermal damage of the car, and vice versa. The thermal damage of the car is better;

[0094] The air filter has the physical properties of being waterproof, heat-resistant and having a fluid cavity. According to the physical property of the air filter being waterproof, the higher the height of the air inlet and the bottom shell, the better the waterproofness of the car, and vice versa. The height of the air filter's air inlet affects the vehicle's wading ability, and the height of the air filter's bottom shell affects the air filter's waterproof performance; according to 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 after entering the engine through the air inlet will affect the vehicle's power economy; according to the air filter's physical property of 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, the worse the car's NVH performance;

[0095] ESC has the physical properties of being heat-resistant and highly rigid. Based on the physical properties of being heat-resistant, the closer the distance between ESC and the high-temperature heat source, the worse the heat damage resistance of the car, and vice versa. Based on the physical properties of being highly rigid, the higher the ESC is arranged, the worse the pedestrian protection of the car, and vice versa.

[0096] The engine room fuse box has the physical property of being waterproof. According to the physical property of the engine room fuse box being waterproof, the higher the engine room fuse box should be arranged, the better the waterproofness of the car, and vice versa.

[0097] ECU has the physical property of being waterproof. According to the physical property of ECU being waterproof, if the position of the ECU plug interface is facing upward, it is not conducive to the waterproofness of the car. If the position of the ECU plug interface is facing downward, it is conducive to the waterproofness of the car.

[0098] The engine decorative cover has the physical characteristics of being heat-resistant and requiring maintenance. According to the physical characteristics of the engine decorative cover being heat-resistant, if the engine decorative cover is provided, it will be disadvantageous to the heat damage of the automobile; according to the physical characteristics of the engine decorative cover requiring maintenance, if the engine decorative cover is provided with operation holes for the engine oil cap and the oil dipstick, it will be beneficial to the maintenance convenience of the automobile;

[0099] The electric vacuum pump has the characteristics of waterproofing, self-excited vibration and heat resistance. According to the physical property of the electric vacuum pump 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 good for 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 electric vacuum pump being heat-resistant, 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 according to the automobile unit physical characteristics that can affect the automobile performance when the automobile unit is arranged, and evaluating whether each automobile unit has the automobile unit physical characteristics in the table in the automobile unit characteristic evaluation table;

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

[0104] According to the scores and the physical characteristics of each unit of the automobile, the layout principles of each unit of the automobile are established, and the units of the automobile are arranged according to the layout principles. If a spatial conflict occurs when the units of the automobile are arranged according to the layout principles, the corresponding automobile units that have conflicts are arranged according to the correlation scores of the automobile performance. The higher the correlation score, the higher the layout priority. The units of the automobile that have conflicts are arranged according to the layout priority ranking.

[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 automobile performance includes NVH performance, pedestrian protection, heat damage, handling stability, waterproofness, power economy, and maintenance convenience.

[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 automobile units that can affect the performance of the automobile when the positions of the automobile units are arranged are listed, and then all the automobile units are evaluated according to the listed characteristics to evaluate whether these automobile units have these characteristics. Then, the automobile performance affected by the arrangement of the automobile units is scored according to the physical characteristics of the automobile units themselves. Finally, when these automobile units are arranged, the layout principles are established and the priorities are sorted according to their own physical characteristics and correlation scores. The final layout is completed according to the priority sorting. In this way, a set of correlation scoring rules and layout principles are established for the connection between automobile performance and automobile units. Therefore, the various units of the automobile can be arranged scientifically, and when there is a conflict in the layout space, it can be resolved according to the priority sorting. Compared with the existing arrangement based on experience, it can reduce the rework rate, improve efficiency, and improve automobile performance.

[0110] (2) 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 characteristic 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 water resistance;

[0116] Self-excited vibration affects NVH performance;

[0117] Having fluid cavities affects NVH performance;

[0118] The need for maintenance affects the ease of repair.

[0119] (3) The specific method for scoring the correlation between the type of vehicle performance affected 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:

[0120] S i,t =∑γ i,k,t N i,t

[0121] Among them, S i,t is the relevance score of the layout of vehicle unit i on vehicle performance t, γ i,t is the relevance weight of the physical characteristic k of vehicle unit i to vehicle performance t, N i,t is the number of physical characteristics of vehicle unit i that affect vehicle performance t.

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

[0123] (4) 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:

[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 height of the powertrain, the worse the pedestrian protection and handling stability of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the difference between the axial direction of the output shaft of the powertrain and the center axis of the wheel hub, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the inclination angle of the powertrain, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the thermal damage of the powertrain, the closer the distance between the powertrain and the heat-intolerant car unit is, the worse the thermal damage of the car, and vice versa. The thermal damage of the car is better;

[0125] The air filter has the physical properties of being waterproof, heat-resistant and having a fluid cavity. According to the physical property of the air filter being waterproof, the higher the height of the air inlet and the bottom shell, the better the waterproofness of the car, and vice versa. The height of the air filter's air inlet affects the vehicle's wading ability, and the height of the air filter's bottom shell affects the air filter's waterproof performance; according to 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 after entering the engine through the air inlet will affect the vehicle's power economy; according to the air filter's physical property of 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, the worse the car's NVH performance;

[0126] ESC has the physical properties of being heat-resistant and highly rigid. Based on the physical properties of being heat-resistant, the closer the distance between ESC and the high-temperature heat source, the worse the heat damage resistance of the car, and vice versa. Based on the physical properties of being highly rigid, the higher the ESC is arranged, the worse the pedestrian protection of the car, and vice versa.

[0127] The engine room fuse box has the physical property of being waterproof. According to the physical property of the engine room fuse box being waterproof, the higher the engine room fuse box should be arranged, the better the waterproofness of the car, and vice versa.

[0128] ECU has the physical property of being waterproof. According to the physical property of ECU being waterproof, if the position of the ECU plug interface is facing upward, it is not conducive to the waterproofness of the car. If the position of the ECU plug interface is facing downward, it is conducive to the waterproofness of the car.

[0129] The engine decorative cover has the physical characteristics of being heat-resistant and requiring maintenance. According to the physical characteristics of the engine decorative cover being heat-resistant, if the engine decorative cover is provided, it will be disadvantageous to the heat damage of the automobile; according to the physical characteristics of the engine decorative cover requiring maintenance, if the engine decorative cover is provided with operation holes for the engine oil cap and the oil dipstick, it will be beneficial to the maintenance convenience of the automobile;

[0130] The electric vacuum pump has the characteristics of waterproofing, self-excited vibration and heat resistance. According to the physical property of the electric vacuum pump 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 good for 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 electric vacuum pump being heat-resistant, 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 run, executes the step in Example 2 of 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 possessed by each vehicle unit.

[0133] Example 4

[0134] An electronic device, characterized in that it includes: a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the step in Example 2, of 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 possessed by each vehicle unit.

[0135] Example 5

[0136] A computer program product, comprising a computer program / instruction, characterized in that when the computer program / instruction is executed by a processor, the step of 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 possessed by each vehicle unit in Example 2 is implemented.

[0137] The contents not described in detail in this specification belong to the prior art known to those skilled in the art. It should be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[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 flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to 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 flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0139] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate 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 A 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 operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions 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 rather than to limit its protection scope. 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 can 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 protection scope 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, used to establish an automobile unit physical characteristic evaluation table according to the automobile unit physical characteristics that can affect the automobile performance when the automobile unit is 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 judge the types of vehicle performance affected by each vehicle unit according to the types of vehicle unit physical characteristics possessed by each vehicle unit in the vehicle unit characteristic evaluation table, and to score the correlation between the types of vehicle performance affected by the physical characteristics of the vehicle unit itself and the layout positions of each vehicle unit according to the types and quantities of the vehicle unit physical characteristics possessed by each vehicle unit.

2. The automobile unit layout system based on automobile performance requirements according to claim 1, characterized in that: Also includes: The vehicle unit layout module is used to establish a layout principle for each vehicle unit according to the score and the physical characteristics of each vehicle unit, and to arrange the vehicle units according to the layout principle. If a conflict occurs in space 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. The higher the correlation score, the higher the layout priority. The vehicle units that have conflict are arranged according to the layout priority ranking.

3. The automobile unit layout system based on automobile performance requirements according to claim 1, characterized in that: The physical characteristics of the automobile unit include large mass, high rigidity, high temperature, heat resistance, waterproofing, self-excited vibration, fluid cavity, and maintenance; Among them, large 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.

4. The automobile unit layout system based on automobile performance requirements according to claim 3 is characterized in that: The automobile performance includes NVH performance, pedestrian protection, heat damage, handling stability, waterproofness, power economy, and maintenance convenience.

5. The automobile unit layout system based on automobile performance requirements according to claim 4 is characterized in that: In the vehicle performance correlation scoring module, according to the types of vehicle unit physical characteristics of each vehicle unit in the vehicle unit characteristic evaluation table, the specific method for determining the types of vehicle performance affected by each vehicle unit 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 water resistance; Self-excited vibration affects NVH performance; Having fluid cavities affects NVH performance; The need for maintenance affects the ease of repair.

6. The automobile unit layout system based on automobile performance requirements according to claim 1, characterized in that: The specific method of the vehicle performance correlation scoring module for scoring 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 is as follows: Among them, S i,t is the relevance score of the layout of vehicle unit i on vehicle performance t, γ i,t is the relevance weight of the physical characteristic k of vehicle unit i to vehicle performance t, N i,t is the number of physical characteristics of vehicle unit i that affect vehicle performance t.

7. The automobile unit layout system based on automobile performance requirements according to claim 4 is 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.

8. The automobile unit layout system based on automobile performance requirements according to claim 7 is characterized in that: In the automobile unit layout module, the layout principles of each automobile unit are established according to the scores and the physical characteristics of each automobile 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 height of the powertrain, the worse the pedestrian protection and handling stability of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the difference between the axial direction of the output shaft of the powertrain and the center axis of the wheel hub, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the inclination angle of the powertrain, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the thermal damage of the powertrain, the closer the distance between the powertrain and the heat-intolerant car unit is, the worse the thermal damage of the car, and vice versa. The thermal damage of the car is better; The air filter has the physical properties of being waterproof, heat-resistant and having a fluid cavity. According to the physical property of the air filter being waterproof, the higher the air inlet and the bottom shell height, the better the car's waterproofness, and vice versa. According to the physical property of the air filter being heat-resistant, the closer the air inlet of the air filter is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa. According to 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-resistant and highly rigid. Based on the physical properties of being heat-resistant, the closer the distance between ESC and the high-temperature heat source, the worse the heat damage resistance of the car, and vice versa. Based on the physical properties of being highly rigid, the higher the ESC is arranged, the worse the pedestrian protection of the car, and vice versa. The engine room fuse box has the physical property of being waterproof. According to the physical property of the engine room fuse box being waterproof, the higher the engine room fuse box should be arranged, the better the waterproofness of the car, and vice versa. ECU has the physical property of being waterproof. According to the physical property of ECU being waterproof, if the position of the ECU plug interface is facing upward, it is not conducive to the waterproofness of the car. If the position of the ECU plug interface is facing downward, it is conducive to the waterproofness of the car. The engine decorative cover has the physical characteristics of being heat-resistant and requiring maintenance. According to the physical characteristics of the engine decorative cover being heat-resistant, if the engine decorative cover is provided, it will be disadvantageous to the heat damage of the automobile; according to the physical characteristics of the engine decorative cover requiring maintenance, if the engine decorative cover is provided with operation holes for the engine oil cap and the oil dipstick, it will be beneficial to the maintenance convenience of the automobile; The electric vacuum pump has the characteristics of waterproofing, self-excited vibration and heat resistance. According to the physical property of the electric vacuum pump 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 good for 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 electric vacuum pump being heat-resistant, the closer the electric vacuum pump is to the high-temperature heat source, the worse the heat damage resistance of the car.

9. 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 according to the automobile unit physical characteristics that can affect the automobile performance when the automobile unit is arranged, and evaluating whether each automobile unit has the automobile unit physical characteristics in the table in the automobile unit characteristic evaluation table; The types of automobile unit physical characteristics possessed by each automobile unit in the automobile unit characteristic evaluation table are used to determine the types of automobile performance affected by each automobile unit, and the correlation between the types of affected automobile performance and the layout positions of each automobile unit is scored based on the types and quantities of automobile unit physical characteristics possessed by each automobile unit.

10. The method for arranging automobile units based on automobile performance requirements according to claim 9, characterized in that: Also includes: The vehicle unit layout module is used to establish a layout principle for each vehicle unit according to the score and the physical characteristics of each vehicle unit, and to arrange the vehicle units according to the layout principle. If a conflict occurs in space 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. The higher the correlation score, the higher the layout priority. The vehicle units that have conflict are arranged according to the layout priority ranking.

11. The method for arranging automobile units based on automobile performance requirements according to claim 9, characterized in that: The physical characteristics of the automobile unit include large mass, high rigidity, high temperature, heat resistance, waterproofing, self-excited vibration, fluid cavity, and maintenance; Among them, large 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.

12. The automobile unit layout system based on automobile performance requirements according to claim 11, characterized in that: The automobile performance includes NVH performance, pedestrian protection, heat damage, handling stability, waterproofness, power economy, and maintenance convenience.

13. The automobile unit layout system based on automobile performance requirements according to claim 11, characterized in that: In the vehicle performance correlation scoring module, according to the types of vehicle unit physical characteristics of each vehicle unit in the vehicle unit characteristic evaluation table, the specific method for determining the types of vehicle performance affected by each vehicle unit 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 water resistance; Self-excited vibration affects NVH performance; Having fluid cavities affects NVH performance; The need for maintenance affects the ease of repair.

14. The automobile unit layout system based on automobile performance requirements according to claim 9, characterized in that: The specific method of the vehicle performance correlation scoring module for scoring 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 is as follows: S i,t =∑γ i,k,t N i,t Among them, S i,t is the relevance score of the layout of vehicle unit i on vehicle performance t, γ i,t is the relevance weight of the physical characteristic k of vehicle unit i to vehicle performance t, N i,t is the number of physical characteristics of vehicle unit i that affect vehicle performance t.

15. The automobile unit layout system based on automobile performance requirements according to claim 13, 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.

16. The automobile unit layout system based on automobile performance requirements according to claim 15, characterized in that: In the automobile unit layout module, the layout principles of each automobile unit are established according to the scores and the physical characteristics of each automobile 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 height of the powertrain, the worse the pedestrian protection and handling stability of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the difference between the axial direction of the output shaft of the powertrain and the center axis of the wheel hub, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the self-excited vibration of the powertrain, the smaller the inclination angle of the powertrain, the better the NVH performance of the car, and vice versa. According to the physical characteristics of the thermal damage of the powertrain, the closer the distance between the powertrain and the heat-intolerant car unit is, the worse the thermal damage of the car, and vice versa. The thermal damage of the car is better; The air filter has the physical properties of being waterproof, heat-resistant and having a fluid cavity. According to the physical property of the air filter being waterproof, the higher the air inlet and the bottom shell height, the better the car's waterproofness, and vice versa. According to the physical property of the air filter being heat-resistant, the closer the air inlet of the air filter is to the high-temperature heat source, the worse the car's heat damage resistance, and vice versa. According to 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-resistant and highly rigid. Based on the physical properties of being heat-resistant, the closer the distance between ESC and the high-temperature heat source, the worse the heat damage resistance of the car, and vice versa. Based on the physical properties of being highly rigid, the higher the ESC is arranged, the worse the pedestrian protection of the car, and vice versa. The engine room fuse box has the physical property of being waterproof. According to the physical property of the engine room fuse box being waterproof, the higher the engine room fuse box should be arranged, the better the waterproofness of the car, and vice versa. ECU has the physical property of being waterproof. According to the physical property of ECU being waterproof, if the position of the ECU plug interface is facing upward, it is not conducive to the waterproofness of the car. If the position of the ECU plug interface is facing downward, it is conducive to the waterproofness of the car. The engine decorative cover has the physical characteristics of being heat-resistant and requiring maintenance. According to the physical characteristics of the engine decorative cover being heat-resistant, if the engine decorative cover is provided, it will be disadvantageous to the heat damage of the automobile; according to the physical characteristics of the engine decorative cover requiring maintenance, if the engine decorative cover is provided with operation holes for the engine oil cap and the oil dipstick, it will be beneficial to the maintenance convenience of the automobile; The electric vacuum pump has the characteristics of waterproofing, self-excited vibration and heat resistance. According to the physical property of the electric vacuum pump 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 good for 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 electric vacuum pump being heat-resistant, the closer the electric vacuum pump is to the high-temperature heat source, the worse the heat damage resistance of the car.

17. A computer-readable medium having a computer program stored thereon, wherein the computer program, when run, executes the step of scoring the correlation between the type of affected vehicle performance and the layout position of each vehicle unit according to the type and quantity 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 9.

18. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes 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 according to the type and quantity 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 9.

19. A computer program product comprising a computer program / instructions, characterized in that The computer program / instructions, when executed by the processor, implement the method for arranging automobile units based on automobile performance requirements as described in claim 9, including the step of scoring the correlation between the type of automobile performance affected and the layout position of each automobile unit according to the type and quantity of automobile unit physical characteristics possessed by each automobile unit.

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