A method, system and medium for quickly setting the modular vehicle height of an electric vehicle

Abstract

The present invention discloses a method, system and medium for quickly setting the modular vehicle height of an electric vehicle, including a vehicle decomposition module: used to decompose the vehicle into multiple modules in the vehicle height direction; a module height range acquisition module: used to determine the height range values ​​of multiple modules decomposed by the vehicle decomposition module; and a calculation module: used to calculate the height range values ​​of the module height range acquisition module to obtain the range of the lowest vehicle height of the vehicle. Using the method and system of the present invention, the vehicle professional can quickly analyze and confirm the height of each module, quickly determine the feasibility of the vehicle height, and save the time of analyzing the professional solutions and the intersection of the vehicle.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle model modularization, and in particular relates to a method, system and medium for quickly setting the modular vehicle height of an electric vehicle. Background Art

[0002] The definition of vehicle height is one of the important factors affecting the development boundary of vehicle models. The layout plan of vehicle height direction is the basis and core of vehicle height. Only when the height of the vehicle is confirmed can the detailed layout of each module plan be further carried out. The adjustment of vehicle height has a greater impact on the Z-direction layout of the vehicle. As one of the core businesses of the overall layout of the vehicle, it is very necessary to conduct in-depth research on the rapid setting method of vehicle height modularization. At present, the conventional method for feasibility analysis of vehicle height is that product planning proposes the intended dimensions of vehicle height according to market development trends and competing products; conducts feasibility analysis on the proposed single dimensions of vehicle height; and balances various professional plans in the overall layout to give a feasibility conclusion of vehicle height. In actual projects, the definition of vehicle height and engineering feasibility need to be analyzed multiple times, and there are repeated work situations, which wastes a lot of time on interactive solution information and conclusions. Summary of the invention

[0003] In order to solve the problem of repeated judgment on the feasibility of vehicle height adjustment engineering and avoid repeated analysis by multiple professionals, the present invention aims to propose a modular vehicle height rapid setting method, which can quickly judge the engineering feasibility of the vehicle height defined by the current product planning and the preliminary Z-direction layout plan according to the size of each module, thereby reducing the production and interaction time of each professional section.

[0004] A method for quickly setting the height of a modular electric vehicle to achieve one of the purposes of the present invention comprises the following steps:

[0005] S1. Decompose the vehicle height of the vehicle model to be set into the power battery ground clearance range, power battery thickness range, Z-direction distance range from the upper surface of the power battery to the passenger heel point, Z-direction height range of the rear passenger compartment, rear head ceiling height range, and modeling space reserved height range, where the Z-direction is the direction perpendicular to the ground plane;

[0006] The power battery ground clearance is the height of the bottom of the power battery from the ground; the Z-direction distance from the upper surface of the power battery to the heel point of the rear passenger is the Z-direction distance from the upper surface of the power battery to the heel point of the rear passenger, and the Z-direction is the direction perpendicular to the ground plane; the Z-direction height of the rear passenger compartment is the distance from the seat reference point to the ceiling above the head of the rear passenger at an angle of 8 degrees backward along the vertical direction of the seat reference point plus 102mm.; the ceiling height at the rear head is the thickness of the ceiling above the head of the rear passenger (because the thickness of the ceiling at different positions is different, so here it is clear that it is above the head of the rear passenger); the reserved height of the styling space is the space reserved for the styling in the Z direction due to different styling styles, that is, the Z-direction distance from the upper surface of the ceiling to the upper surface of the top cover.

[0007] S2. Determine the height range of the power battery from the ground based on the lowest point of the vehicle in the ready state; determine the thickness range of the power battery based on the thickness of the battery pack floor, the height of the battery module, the distance between the module and the battery cover, and the thickness of the battery cover; determine the Z-direction distance range from the upper surface of the power battery to the passenger heel point based on the gap between the upper surface of the battery pack and the floor under the vehicle body, the thickness of the vehicle body floor, and the thickness of the carpet; determine the Z-direction height range of the rear passenger compartment based on the rear seat height range and the height range of the effective head space; determine the height range of the ceiling at the top of the rear head based on the top decoration type; determine the reasonable value of the reserved height range of the styling space based on the module selection of the specific vehicle model;

[0008] S3. The sum of the height range of the power battery from the ground, the thickness range of the power battery, the Z-direction distance range from the upper surface of the power battery to the heel point of the occupant, the Z-direction height range of the rear passenger compartment, the height range of the ceiling above the rear head, and the reserved height range of the styling space is taken as the minimum vehicle height range of the whole vehicle.

[0009] Furthermore, the method for determining the height range of the power battery from the ground comprises the following steps:

[0010] S201, setting the lowest point range from the ground when the vehicle is in a ready state, wherein the vehicle is in a ready state when the vehicle is fully fueled and has no passengers or luggage;

[0011] S202. The ground clearance range of the power battery is the range of the lowest point of the ground when the vehicle is in a ready state plus a set value, that is, the maximum value and the minimum value of the range of the lowest point of the ground when the vehicle is in a ready state are added to the set value as the ground clearance range of the power battery. The set value can be 5 mm, but is not limited to this value.

[0012] Furthermore, the method for determining the thickness range of the power battery includes:

[0013] Obtain the battery pack bottom plate thickness range h0′, module height range h1′, module and battery cover spacing range h2′, and battery cover thickness range h3′ respectively;

[0014] The sum of the above ranges h0′, h1′, h2′, and h3′ is taken as the thickness range of the power battery.

[0015] The module height h1 ′ includes the height of the cold plate.

[0016] Furthermore, the method for determining the Z-direction distance range from the upper surface of the power battery to the heel point of the occupant comprises the following steps:

[0017] S301, determining a clearance range h1 from the upper surface of the battery pack to the floor under the vehicle body;

[0018] S302, determining a thickness range h2 of the vehicle body floor;

[0019] S303, determining the carpet thickness range h3;

[0020] S304, taking the sum of the ranges h1, h2, and h3 in the above steps as the Z-direction distance range from the upper surface of the power battery to the heel point of the occupant.

[0021] Furthermore, the method for determining the height of the Z-direction space of the rear passenger compartment comprises the following steps:

[0022] S401, determining a rear seat height range;

[0023] S402, determining a height range of an effective head space;

[0024] S403, taking the sum of the rear seat height range and the height range of the effective head space in the above steps as the Z-direction height range of the rear passenger compartment.

[0025] The rear seat height is the Z-axis height from the rear passenger's heel point to the rear seat reference point. The rear seat reference point is a unique point designed by the seat manufacturer for the rear seat, which simulates the pivot point position of the torso and thigh and is used for preliminary design.

[0026] The height of the effective headroom is the distance from the rear seat reference point to the ceiling above the rear passenger's head, vertically and at an 8-degree angle to the rear of the vehicle, plus 102mm.

[0027] Furthermore, the determination of the ceiling height range at the rear head position includes the following steps:

[0028] If the roof decoration type is no sunroof, the sunroof is only located above the driver, or it is an outward-opening panoramic sunroof, the height of the ceiling above the rear row is the first set height; if the roof decoration type is a transparent hardtop, the height of the ceiling above the rear row is the second set height. The first set height is preferably 30 mm, but not limited to this value; the second set height is preferably in the range of [4 mm, 6 mm], but not limited to this range.

[0029] The range summation in the present invention is to sum the minimum values ​​of each range to be summed as the minimum value of the summed range, and to sum the maximum values ​​of each range to be summed as the maximum value of the summed range.

[0030] A modular vehicle height rapid setting system for electric vehicles that achieves the second purpose of the present invention includes a whole vehicle decomposition module: used to decompose the whole vehicle into multiple modules in the Z direction; a module height range acquisition module: used to determine the height range values ​​of multiple modules decomposed by the whole vehicle decomposition module; and a calculation module: used to calculate the various height range values ​​of the module height range acquisition module to obtain the vehicle height range of the whole vehicle.

[0031] Furthermore, the whole vehicle decomposition module decomposes the whole vehicle into multiple height ranges of vehicle components, and the height ranges of the multiple vehicle components include: the height range of the power battery from the ground, the thickness range of the power battery, the Z-direction distance range from the upper surface of the power battery to the occupant's heel point; the height range of the Z-direction space of the rear passenger compartment, the height range of the ceiling at the top of the rear head, and the reserved height range of the styling space.

[0032] Furthermore, the module height range acquisition module includes: a power battery ground height range acquisition module, a power battery thickness range determination module, a power battery upper surface to occupant heel point Z-direction distance range determination module, a rear passenger compartment Z-direction space height range determination module, and a rear head ceiling height range determination module.

[0033] A non-transitory computer-readable storage medium is provided to achieve the third objective of the present invention, on which a computer program is stored, and when the computer program is executed by a processor, any step of the method for quickly setting the modular vehicle height of an electric vehicle is implemented.

[0034] By utilizing the system and method of the present invention, the vehicle professional can quickly analyze and confirm the height of each module, quickly determine the feasibility of achieving the height of the vehicle, and save the time for analyzing various professional solutions and completing the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a block diagram of the system of the present invention;

[0036] Figure 2 It is a schematic diagram of the sitting posture of the rear-seat human body according to the present invention. DETAILED DESCRIPTION

[0037] The following specific implementations are used to explain the technical solutions of the claims of the present invention so that those skilled in the art can understand the claims. The protection scope of the present invention is not limited to the following specific implementation structures. The technical solutions of the claims of the present invention made by those skilled in the art but different from the following specific implementations are also within the protection scope of the present invention.

[0038] In the description of the present invention, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0039] Combine the following Figure 2 An embodiment of the method of the present invention is described by taking a sedan as an example.

[0040] S1. Decompose the vehicle height of the model to be set into the power battery ground clearance range, power battery thickness range, Z-direction distance range from the upper surface of the power battery to the passenger heel point, Z-direction height range of the rear passenger compartment, rear head ceiling height range, and modeling space reserved height range;

[0041] The Z-direction layout of the vehicle is closely related to the definition of the vehicle height. The flat battery pack layout of pure electric vehicles affects the heel point height of the rear-seat passengers, resulting in the passive lifting of the rear-seat passengers as a whole, which directly increases the height of the vehicle. Therefore, the rear-seat human body layout is an important factor restricting the vehicle height. In the process of platform layout development, the rear-seat passengers are taken as the core. On the premise of satisfying the comfort of the passengers and the reasonable setting of the structural dimensions, the dimensions of each link of the vehicle height are decomposed from the ground line to the roof from bottom to top to demonstrate and analyze the rationality of the vehicle height setting. As shown in Table 1 below. This method of dividing the blocks according to the components of the vehicle height is more intuitive than other division methods, and can quickly collect the height of each module in engineering analysis.

[0042]

[0043] Table 1 Electric sedan vehicle height, size and chain breakdown

[0044] S2. Determine the height range of the power battery from the ground based on the lowest point of the vehicle in the ready state; determine the thickness range of the power battery based on the thickness of the battery pack floor, the height of the battery module, the distance between the module and the battery cover, and the thickness of the battery cover; determine the Z-direction distance range from the upper surface of the power battery to the passenger heel point based on the gap between the upper surface of the battery pack and the floor under the vehicle body, the thickness of the vehicle body floor, and the thickness of the carpet; determine the Z-direction height range of the rear passenger compartment based on the rear seat height range and the height range of the effective head space; determine the height range of the ceiling at the top of the rear head based on the top decoration type; determine the reasonable value of the reserved height range of the styling space based on the module selection of the specific vehicle model;

[0045] 1. Modeling space height range

[0046] The styling space refers to the curvature trend of the vehicle roof in the Y and X directions. It is generally taken as the Z-direction difference between the highest point of the vehicle roof and the roof above the rear head. The height range is generally 30-65mm. The Y direction is the vehicle's driving direction, and the X direction is parallel and perpendicular to the vehicle's driving direction. The height range of the styling space depends on the module selection of the specific model. Different selections will result in different height ranges of the styling space, which can be directly obtained from the module data of the specific model.

[0047] The following is an analysis and demonstration of the rationality of the structural dimension settings of each module except for the styling factors according to the recommended setting sequence.

[0048] 2. Height range of power battery from the ground

[0049] S201, setting the lowest point range of the vehicle from the ground when the vehicle is in a ready state;

[0050] Generally, the fully loaded ground clearance of household pure electric cars is controlled at no less than 120mm, and the curb ground clearance is set within the range of 145-160mm based on the suspension travel; if the design is a sports car style model and the operating conditions are mainly urban roads, the fully loaded ground clearance is generally 110-125mm, and the curb ground clearance can be set to 135-150mm. For safety reasons, in order to prevent the battery pack from being bumped, the battery pack cannot be at the lowest point, but it cannot be too high, otherwise the height of the vehicle will increase accordingly, and the height of electric vehicles is generally kept as low as possible. In order to protect the battery pack shell and prevent bottoming out and bumping, it is necessary to set the lowest point of the ground when the vehicle is in a curb state;

[0051] S202. The ground clearance range of the power battery is the range of the lowest point above the ground in the vehicle ready state plus a set value.

[0052] The height above the above-mentioned lowest ground clearance is taken as the ground clearance of the power battery, and the set distance can be 5mm, that is, the ground clearance range of the power battery is 5mm higher than the lowest ground clearance of the vehicle in the ready state, but is not limited to this value. Therefore, the ground clearance range of the power battery of a general family car based on the suspension travel is 150-165mm, and the ground clearance range of the power battery of a sports car style model is 140-155mm.

[0053] In another preferred embodiment, the lowest point of the vehicle above the ground in the ready state can also select the smaller value of the lowest point of the front bracket above the ground and the lowest point of the lower guard plate of the cabin above the ground in the 3D data of the vehicle as the lowest point of the vehicle above the ground in the ready state, and the lowest point of the front bracket above the ground and the lowest point of the lower guard plate of the cabin are determined by the layout plan, and the lowermost point in the Z direction of the front bracket and the lower guard plate of the cabin in the 3D data of the vehicle are taken.

[0054] 3. Power battery thickness range

[0055] The thickness of the power battery is mainly composed of the thickness of the following four parts: the thickness of the battery pack bottom plate h0′, the module height (including the cold plate) h1′, the distance between the module and the battery cover h2′, and the thickness of the battery cover h3′. The thickness of the battery pack bottom plate h0′ is generally in the range of 7±0.5mm; in this example, the module height h1′ is generally in the range of 110±1mm; the distance h2′ between the module and the battery cover is generally in the range of 5.5mm; the thickness of the battery cover h3′ is about 1.5±0.5mm; the sum of the above height ranges h0′, h1′, h2′, and h3′ is used as the thickness range of the power battery. The module height h1′ mentioned above will vary from supplier to supplier, and the differences in other dimensions due to different suppliers are relatively small; therefore, after the power battery supplier is determined, the thickness of the battery pack is basically determined. Therefore, the thickness of the power battery is estimated to be 122-136mm.

[0056] 4. Z-direction distance range from power battery to rear passenger heel point

[0057] When arranging the rear passengers, it is necessary to clearly define the Z-direction clearance from the rear passenger heel point to the upper surface of the battery pack to reserve space for subsequent vehicle layouts. This clearance consists of the following three parts:

[0058] 4.1. Clearance from the upper surface of the battery pack to the floor under the vehicle body

[0059] To improve the sound insulation performance, a layer of foam needs to be installed between the battery pack and the car body, leaving a gap of 8 to 10 mm.

[0060] 4.2. Car body floor thickness range

[0061] The three-box car developed on the electric platform has a flat floor with a large floor surface thickness of 0.6 to 0.7 mm. In order to strengthen the body structure, a reinforcing rib structure is required on the floor. The rib thickness is about 5 mm, so the recommended value for the overall thickness of the body floor is 5.6 to 5.7 mm.

[0062] 4.3. Carpet thickness range

[0063] The carpet is composed of a heavy coating and a sound insulation pad. Considering that the noise of electric vehicles is relatively small compared to fuel vehicles, the thickness of the carpet can be considered to be smaller than that of fuel vehicles. The thickness of the heavy coating is recommended to be 5mm, and the thickness of the sound insulation pad is recommended to be 20mm; considering that the carpet has a certain amount of compression when the passenger's feet are placed on the carpet, about 5mm, the thickness of the carpet is recommended to be 30mm.

[0064] Based on the analysis of the thickness ranges of the above three components, the minimum value of each range is added to obtain the minimum value of the Z-direction distance range from the upper surface of the power battery to the occupant's heel point. Similarly, the maximum value of the Z-direction distance range from the upper surface of the power battery to the occupant's heel point is added to obtain the maximum value of the Z-direction distance range from the upper surface of the power battery to the occupant's heel point. That is, the recommended value of the Z-direction reserved space from the upper surface of the battery pack to the heel point of the rear passenger is 43.6mm to 45.7mm.

[0065] 5. Z-direction space range of the rear passenger compartment

[0066] The comfort and headroom of rear passengers are also important factors affecting the vehicle height. After analyzing the Z-direction space layout of rear passengers, it is found that the Z-direction space of the rear passenger compartment is mainly composed of the following: Figure 2 The rear passenger sitting height H30-2 and the effective headroom H61-2 are shown in FIG. Figure 2 The rear head space B shown in the figure plus 102mm; the following describes the methods for determining the rear passenger sitting height range and the effective head space height range respectively.

[0067] S401, determine the rear seat height range H30-2

[0068] The rear seat height is the Z-direction height from the rear passenger's heel point to the rear seat reference point. The rear seat reference point is a unique point designed by the seat manufacturer for the rear seat, simulating the pivot point between the torso and the thigh. Figure 2 Point A in the figure is the rear seat reference point.

[0069] Using SAE95% human body layout, combined with the experience of developed vehicle layout and subjective evaluation results on the man-machine test bench, and through a large number of competitive product benchmarking analyses, it is recommended that the rear seat height of family sedans be greater than 290mm, and the rear seat height of business sedans be greater than 300mm. Otherwise, it will lead to a smaller hip angle of the rear passengers and poor ride comfort. In this embodiment, the recommended rear seat height priority range for family sedans is [290mm, 380mm], and the rear seat height priority range for business sedans is [300mm, 400mm], but is not limited to this range.

[0070] S402, effective head space height range H61-2

[0071] Headroom is an important parameter for customers to evaluate whether the interior space of a vehicle is good. A larger headroom can improve the riding comfort of rear passengers, but it will also bring the disadvantage of increased height of the vehicle, which will affect the styling proportions and sacrifice part of the electric vehicle's range. Therefore, it is necessary to consider the vehicle height and headroom in a balanced manner, and try not to increase the invalid vehicle height too much while meeting the head space requirements.

[0072] The height of the effective headroom is the distance from the seat reference point to the ceiling above the rear passenger's head, plus 102 mm, at an angle of 8 degrees from the rear seat reference point to the rear passenger's head.

[0073] The SAE 95% human body combined model was selected to evaluate the effect. The effective head space H61-2 ≥ 935mm is a relatively comfortable space state. If a lower vehicle height is to be achieved, the effective head space H61-2 can be considered to be appropriately sacrificed, not less than 925mm, and its preferred range is 925-960mm, but not limited to this range. It should be understood that in theory, the larger the head space, the higher the comfort, but the vehicle height will also be higher. From the perspective of engineering feasibility, as long as it is greater than this vehicle height, it can be achieved. Under the premise of feasibility, the specific vehicle height depends on the shape of the vehicle.

[0074] S403. The sum of the rear seat height range and the height range of the effective head space in the above steps is taken as the Z-direction height range of the rear passenger compartment, that is, the Z-direction height range of the rear passenger compartment of a family car is [1215mm, 1340mm]; the Z-direction height range of the rear passenger compartment of a business car is [1225mm, 1360mm].

[0075] 6. Rear row ceiling height range

[0076] If the roof decoration type is without sunroof, the sunroof is only located above the driver or is an outward-opening panoramic sunroof, the ceiling height at the top of the rear row's head is in the first set height range, and the first set height range is preferably [25mm, 35mm], not limited to this range; if the roof decoration type is a transparent hardtop cover, the ceiling height at the top of the rear row's head is in the second set height, and the second set height preferably ranges from [4mm, 6mm], not limited to this range.

[0077] S3. The sum of the height range of the power battery from the ground, the thickness range of the power battery, the Z-direction distance range from the upper surface of the power battery to the heel point of the occupant, the Z-direction height range of the rear passenger compartment, the height range of the ceiling above the rear head, and the reserved height range of the styling space is taken as the minimum vehicle height range of the whole vehicle.

[0078] The range summing is to sum the minimum values ​​of each of the above ranges as the minimum value of the range of the lowest vehicle height of the whole vehicle, and to sum the maximum values ​​of each of the above ranges as the maximum value of the range of the lowest vehicle height of the whole vehicle;

[0079] According to the boundary definition of vehicle height for the project, the whole vehicle calculates the lowest achievable vehicle height according to the vehicle model configuration through the vehicle model modular vehicle height rapid setting method of the present invention. If the vehicle height required by the project is higher than the lowest achievable vehicle height, the project requirement is met; if the vehicle height required by the project is lower than the lowest achievable vehicle height, the vehicle height required by the project cannot be achieved and the target needs to be adjusted. Therefore, the feasibility of the vehicle height definition can be quickly determined through this method.

[0080] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0081] Another embodiment of the modular vehicle height rapid setting system of the present application includes a whole vehicle decomposition module: used to decompose the whole vehicle into multiple modules in the vehicle body height direction; a module height range acquisition module: used to obtain the height range values ​​of multiple modules decomposed by the whole vehicle decomposition module; and a calculation module: used to calculate the various height range values ​​of the module height range acquisition module to obtain the vehicle height range of the whole vehicle.

[0082] The whole vehicle decomposition module decomposes the whole vehicle into the height ranges of multiple vehicle components, and the height ranges of the multiple vehicle components include: the height range of the power battery from the ground, the thickness range of the power battery, the Z-direction distance range from the upper surface of the power battery to the occupant's heel point; the height range of the Z-direction space of the rear passenger compartment, the height range of the ceiling at the rear head, and the reserved height range of the styling space.

[0083] The module height range determination module includes: a power battery ground height range determination module, a power battery thickness range determination module, a power battery upper surface to the occupant heel point Z-direction distance range determination module, a rear passenger compartment Z-direction space height range determination module, and a rear head ceiling height range determination module.

[0084] This embodiment also provides a computer-readable storage medium, which stores a computer program. The computer program includes program instructions. When the program instructions are executed by a processor, the various steps of the automobile platform architecture analysis method are implemented, which will not be repeated here.

[0085] The computer-readable storage medium may be the data transmission device provided in any of the aforementioned embodiments or the internal storage unit of the computer device, such as the hard disk or memory of the computer device. The computer-readable storage medium may also be an external storage device of the computer device, such as a plug-in hard disk, a smart memory card (smartmedia card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc., provided on the computer device.

[0086] The computer-readable storage medium may also include both an internal storage unit of the computer device and an external storage device. The computer-readable storage medium is used to store the computer program and other programs and data required by the computer device. The computer-readable storage medium may also be used to temporarily store data to be output or has been output.

[0087] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A method for quickly setting the height of a modular electric vehicle, characterized in that: The steps include: S1. Decompose the vehicle height of the vehicle model to be set into the power battery ground clearance range, power battery thickness range, Z-direction distance range from the upper surface of the power battery to the passenger heel point, Z-direction height range of the rear passenger compartment, rear head ceiling height range, and modeling space reserved height range, where the Z-direction is the direction perpendicular to the ground plane; S2. Determine the height range of the power battery from the ground based on the lowest point of the vehicle in the ready state; determine the thickness range of the power battery based on the thickness of the battery pack floor, the height of the battery module, the distance between the module and the battery cover, and the thickness of the battery cover; determine the Z-direction distance range from the upper surface of the power battery to the passenger heel point based on the gap between the upper surface of the battery pack and the floor under the vehicle body, the thickness of the vehicle body floor, and the thickness of the carpet; determine the Z-direction height range of the rear passenger compartment based on the rear seat height range and the height range of the effective head space; determine the height range of the ceiling at the top of the rear head based on the top decoration type; determine the reasonable value of the reserved height range of the styling space based on the module selection of the specific vehicle model; S3. Sum the height range of the power battery from the ground, the thickness range of the power battery, the Z-direction distance range from the upper surface of the power battery to the heel point of the occupant, the Z-direction height range of the rear passenger compartment, the height range of the ceiling above the rear head, and the reserved height range of the styling space as the minimum vehicle height range of the whole vehicle; In step S2, the method for determining the thickness range of the power battery includes the following steps: Get the battery pack bottom plate thickness range respectively , Module height range , the distance between the module and the battery cover , Battery cover thickness range ; The above range , , , The sum of is taken as the thickness range of the power battery.

2. The method for quickly setting the modular vehicle height of an electric vehicle as claimed in claim 1, characterized in that: In step S2, the method for determining the height range of the power battery from the ground comprises the following steps: S201, setting the lowest point range of the vehicle from the ground when the vehicle is in a ready state; S202. The ground clearance range of the power battery is the range of the lowest point above the ground in the vehicle ready state plus a set value.

3. The method for quickly setting the modular vehicle height of an electric vehicle as claimed in claim 1, characterized in that: In step S2, the method for determining the Z-direction distance range from the upper surface of the power battery to the heel point of the occupant comprises the following steps: S301: Determine the clearance range from the upper surface of the battery pack to the floor under the vehicle body h 1; S302: Determine the thickness range of the vehicle body floor h 2; S303: Determine the thickness range of the carpet h 3; S304: the range described in the above steps h 1. h 2. h The sum of 3 is taken as the Z-direction distance range from the upper surface of the power battery to the heel point of the occupant.

4. The method for quickly setting the modular vehicle height of an electric vehicle as claimed in claim 1, characterized in that: In step S2, the method for determining the height of the Z-direction space of the rear passenger compartment includes the following steps: S401, determining a rear seat height range; S402, determining a height range of an effective head space; S403, taking the sum of the rear seat height range and the height range of the effective head space in the above steps as the Z-direction height range of the rear passenger compartment.

5. The method for quickly setting the modular vehicle height of an electric vehicle as claimed in claim 1, characterized in that: In step S2, determining the height range of the ceiling above the rear row of passengers includes the following steps: If the roof decoration type is no sunroof, the sunroof is only located above the driver or is an outward-opening panoramic sunroof, the ceiling height at the top of the rear row's heads is the first set height; if the roof decoration type is a transparent hardtop cover, the ceiling height at the top of the rear row's heads is the second set height.

6. A system for quickly setting the modular vehicle height of an electric vehicle using the method for quickly setting the modular vehicle height of an electric vehicle according to claim 1, characterized in that: include: Vehicle decomposition module: used to decompose the whole vehicle into multiple modules in the vehicle body height direction; module height range acquisition module: used to obtain the height range values ​​of multiple modules decomposed by the whole vehicle decomposition module; calculation module: used to calculate the height range values ​​of the module height range acquisition module to obtain the vehicle height range of the whole vehicle.

7. The modular vehicle height quick setting system for electric vehicles as claimed in claim 6, characterized in that: The whole vehicle decomposition module decomposes the whole vehicle into the height ranges of multiple vehicle components, and the height ranges of the multiple vehicle components include: the height range of the power battery from the ground, the thickness range of the power battery, the Z-direction distance range from the upper surface of the power battery to the occupant's heel point; the height range of the Z-direction space of the rear passenger compartment, the height range of the ceiling at the rear head, and the reserved height range of the styling space.

8. The modular vehicle height quick setting system for electric vehicles as claimed in claim 6, characterized in that: The module height range determination module includes: a power battery ground height range determination module, a power battery thickness range determination module, a power battery upper surface to the occupant heel point Z-direction distance range determination module, a rear passenger compartment Z-direction space height range determination module, and a rear head ceiling height range determination module.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for quickly setting the modular vehicle height of an electric vehicle as claimed in any one of claims 1 to 5 are implemented.

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