Automobile vibration improvement method, control device and automobile

Abstract

The present invention discloses a method for improving automobile vibration, a control device, and an automobile, relating to the field of automobile design technology. The method includes the following steps: obtaining the variable travel of the empty spring and the corresponding drive shaft angle under multiple preset modes of the automobile, and forming a parameter group; obtaining the acceleration amplitude corresponding to each parameter group of the variable travel of the empty spring and the drive shaft angle under rapid acceleration in multiple preset speed ranges of the automobile; comparing the acceleration target value with the multiple acceleration amplitudes to obtain multiple acceleration excess amplitudes that exceed the acceleration target value; and adjusting the multiple acceleration excess amplitudes so that the multiple acceleration excess amplitudes do not exceed the acceleration target value. This configuration enables the automobile to consistently achieve NVH performance targets during operation and effectively guarantees the NVH performance of the entire vehicle batch.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile design, and in particular to an automobile vibration improvement method, a control device and an automobile. Background Art

[0002] Vehicles with air suspension typically have multiple modes, such as high-speed, sport, economy, high, and low, tailored to suit different scenarios. Some models offer a maximum adjustment range of 90mm (40mm higher, 50mm lower) for the air suspension, which can be adjusted manually or automatically based on vehicle speed. Besides height, users can also adjust the suspension's stiffness or firmness by adjusting the driving mode to meet their specific suspension stiffness and shock absorber damping requirements under different road conditions.

[0003] However, when developing the whole vehicle layout, the working angle of the constant velocity joint is optimized to meet the design state, that is, to ensure that the NVH performance of several commonly used modes meets the requirements. However, as the height and low posture travel of the suspension increases, especially in the maximum high posture or low posture mode, the constant velocity joint angle will become larger. When accelerating in this mode, the working angle of the constant velocity joint will change dynamically under the action of the powertrain torque (suspension deformation and the vehicle will appear to raise its head or nod), and the suspension and suspension performance parameters of the whole vehicle will be adjusted at different stages, which will have a greater impact on the working angle of the constant velocity joint in extreme postures, which may Acceleration jitter problems will occur, that is, steering wheel jitter or chassis vibration problems will occur, affecting the NVH performance of the entire vehicle, and will also accelerate the wear of the constant velocity joint, reduce its life, and cause customer complaints. The existing technology mainly improves NVH performance by optimizing the axial force of the constant velocity joint and reducing the excitation force of the axial force when working at large angles. However, due to the working characteristics of the constant velocity joint, the axial force will gradually increase as the angle becomes larger. The axial force that can be reduced by high-performance grease is limited, and it is difficult to achieve the NVH performance target. In addition, there are differences between vehicles, and the NVH performance of the entire vehicle batch cannot be effectively guaranteed. Summary of the Invention

[0004] The main purpose of the present invention is to propose a vehicle vibration improvement method, a control device and a vehicle, aiming to improve the problem that the existing vehicle vibration optimization method is difficult to make the vehicle always achieve the NVH performance target and cannot effectively guarantee the NVH performance of the entire vehicle batch.

[0005] To achieve the above-mentioned object, the vehicle vibration improvement method proposed by the present invention comprises the following steps:

[0006] Obtain the variable travel of the air spring and the corresponding drive shaft angle of the vehicle in multiple preset modes and form a parameter group;

[0007] Obtaining acceleration amplitudes corresponding to each of the air spring change stroke and drive shaft angle parameter groups under rapid acceleration of the vehicle in a plurality of preset speed segments;

[0008] comparing the acceleration target value and the plurality of acceleration amplitudes to obtain a plurality of acceleration excess amplitudes that are higher than the acceleration target value;

[0009] The plurality of excessive acceleration amplitudes are adjusted so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value.

[0010] In one embodiment, the step of adjusting the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value comprises:

[0011] The motor output torque corresponding to the plurality of the excessive acceleration amplitudes is limited so that the plurality of the excessive acceleration amplitudes are not higher than the acceleration target value.

[0012] In one embodiment, the step of adjusting the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value comprises:

[0013] The maximum value of the air spring change stroke corresponding to the multiple excessive acceleration amplitudes is limited to limit the maximum value of the drive shaft angle so that the multiple excessive acceleration amplitudes are not higher than the acceleration target value.

[0014] In one embodiment, the step of adjusting the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value comprises:

[0015] The motor speed corresponding to the plurality of the excessive acceleration amplitudes is increased so that the plurality of the excessive acceleration amplitudes are not higher than the acceleration target value.

[0016] In one embodiment, in the step of obtaining the acceleration amplitude corresponding to each of the air spring change stroke and drive shaft angle parameter groups when the vehicle is rapidly accelerated in multiple preset speed segments, each of the acceleration amplitudes is obtained by an acceleration sensor. There are multiple acceleration sensors, which are respectively arranged on the vehicle steering wheel, vehicle floor and seat guide rails to detect the acceleration of the vehicle in multiple directions.

[0017] In one embodiment, the values ​​of the plurality of preset speed segments are arranged in equal intervals.

[0018] In one embodiment, the acceleration target value is A, where A=0.25 m / s2.

[0019] In one embodiment, the plurality of preset modes include a high-speed mode, a sports mode, an economic mode, a high posture, and a low posture.

[0020] The present invention also proposes a control device for a method for improving automobile vibration, which includes a memory, a processor, and a control program for the method for improving automobile vibration stored in the memory and executable on the processor. The control program for the method for improving automobile vibration is configured to implement the steps of the above-mentioned method for improving automobile vibration.

[0021] The present invention also provides a car, comprising a control device for the above-mentioned car vibration improvement method.

[0022] In the technical solution of the present invention, since the automobile is usually provided with a plurality of the preset modes, and in each of the preset modes, the preset parameters of the automobile are different, therefore, it is first necessary to obtain the air spring change stroke and the corresponding drive shaft angle of the automobile in the plurality of the preset modes and form a parameter group, and since the vibration generated by the automobile when running at different speeds is also different, it is necessary to make the automobile accelerate rapidly in a plurality of the preset speed segments, and in each of the preset speed segments, the automobile needs to accelerate rapidly with a plurality of the air spring change stroke and drive shaft angle parameter groups, thereby obtaining a plurality of corresponding acceleration amplitudes. By comparing the acceleration target value and the multiple acceleration amplitudes, it is possible to obtain some of the acceleration amplitudes whose values ​​are not higher than the acceleration target value, and some of the acceleration amplitudes whose values ​​are higher than the acceleration target value, namely the acceleration excess amplitudes. The acceleration excess amplitudes indicate that the automobile cannot achieve the NVH performance target when operating under the empty spring change stroke and drive shaft angle parameter group. Therefore, by adjusting the multiple acceleration excess amplitudes so that the multiple acceleration excess amplitudes are not higher than the acceleration target value, the automobile can achieve the NVH performance target when operating under any of the empty spring change stroke and drive shaft angle parameter groups. Such a setting can enable the automobile to always achieve the NVH performance target during operation and can effectively guarantee the NVH performance of the entire vehicle batch. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1A schematic flow chart of a first embodiment of the vehicle vibration improvement method provided by the present invention;

[0025] Figure 2 A schematic flow chart of a second embodiment of the vehicle vibration improvement method provided by the present invention;

[0026] Figure 3 A schematic flow chart of a third embodiment of the vehicle vibration improvement method provided by the present invention;

[0027] Figure 4 A schematic flow chart of a fourth embodiment of the vehicle vibration improvement method provided by the present invention;

[0028] Figure 5 for Figure 1 The acceleration amplitude under different air spring travel at 30km / h acceleration;

[0029] Figure 6 for Figure 1 The acceleration amplitude under rapid acceleration in multiple preset speed segments;

[0030] Figure 7 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the automobile vibration improvement method provided by the present invention.

[0031] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] The present invention proposes a method for improving automobile vibration, aiming to improve the problem that existing automobile vibration optimization methods are difficult to ensure that the automobile always achieves the NVH performance target and cannot effectively guarantee the NVH performance of the entire vehicle batch.

[0036] See also Figure 1 In a first embodiment of the present invention, the vehicle vibration improvement method comprises the following steps:

[0037] S100, obtaining the variable travel of the air spring and the corresponding drive shaft angle of the vehicle in multiple preset modes, and forming a parameter group;

[0038] It should be noted that, generally, a car has multiple modes, and there are differences in multiple parameters of the car in the multiple preset modes. Therefore, it is necessary to obtain the changes in the air springs and the corresponding drive shaft angles of the car in the multiple preset modes.

[0039] S200, obtaining acceleration amplitudes corresponding to each of the air spring change stroke and drive shaft angle parameter groups under rapid acceleration of the vehicle in a plurality of preset speed ranges;

[0040] It is understandable that when the car is traveling at different speeds, the acceleration amplitude it is subjected to is also different. Therefore, for the car traveling in each of the preset speed segments, it is necessary to obtain the acceleration amplitude corresponding to each of the air spring change strokes and drive shaft angle parameter groups to refine the changes in the acceleration amplitude.

[0041] S300, comparing the acceleration target value and the plurality of acceleration amplitudes to obtain a plurality of acceleration excess amplitudes that are higher than the acceleration target value;

[0042] It can be understood that when the acceleration amplitude is not higher than the acceleration target value, it means that the car can achieve the NVH performance target at this time; when the acceleration amplitude is higher than the acceleration target value, it means that the car cannot achieve the NVH performance target at this time.

[0043] S400: Adjust the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value.

[0044] In the technical solution of the present invention, since the automobile is usually provided with a plurality of the preset modes, and in each of the preset modes, the preset parameters of the automobile are different, therefore, it is first necessary to obtain the air spring change stroke and the corresponding drive shaft angle of the automobile in the plurality of the preset modes and form a parameter group, and since the vibration generated by the automobile when running at different speeds is also different, it is necessary to make the automobile accelerate rapidly in a plurality of the preset speed segments, and in each of the preset speed segments, the automobile needs to accelerate rapidly with a plurality of the air spring change stroke and drive shaft angle parameter groups, thereby obtaining a plurality of corresponding acceleration amplitudes. By comparing the acceleration target value and the multiple acceleration amplitudes, it is possible to obtain some of the acceleration amplitudes whose values ​​are not higher than the acceleration target value, and some of the acceleration amplitudes whose values ​​are higher than the acceleration target value, namely the acceleration excess amplitudes. The acceleration excess amplitudes indicate that the automobile cannot achieve the NVH performance target when operating under the empty spring change stroke and drive shaft angle parameter group. Therefore, by adjusting the multiple acceleration excess amplitudes so that the multiple acceleration excess amplitudes are not higher than the acceleration target value, the automobile can achieve the NVH performance target when operating under any of the empty spring change stroke and drive shaft angle parameter groups. Such a setting can enable the automobile to always achieve the NVH performance target during operation and can effectively guarantee the NVH performance of the entire vehicle batch.

[0045] To ensure the accuracy of the acceleration amplitude detection, in a further embodiment of the present invention, in step S200, the acceleration amplitude corresponding to each of the air spring change travel and drive shaft angle parameter groups under rapid acceleration of the vehicle in multiple preset speed ranges is obtained by an acceleration sensor. Multiple acceleration sensors are provided, each located on the vehicle's steering wheel, vehicle floor, and seat rails, to detect the vehicle's acceleration in multiple directions. In this arrangement, the multiple acceleration sensors jointly detect the acceleration amplitude corresponding to the vehicle in multiple preset modes and speed ranges, thereby ensuring the accuracy of the detection structure.

[0046] It should also be noted that the present invention does not limit the specific form of the preset mode. For example, in one embodiment of the present invention, the preset mode includes high-speed mode, sports mode and economic mode; and in another embodiment of the present invention, the preset mode includes high posture and low posture.

[0047] In other embodiments of the present invention, the preset mode may further include a kinetic energy recovery mode or other modes, which may be selected according to actual needs during actual setting.

[0048] Of course, the present invention is also not limited to the specific numerical value of the acceleration target value, and the specific numerical value of the acceleration target value can be selected according to different vehicle models.

[0049] In this embodiment, the acceleration target value is A, A=0.25m / s2.

[0050] In addition, the present invention does not limit the specific method for adjusting the excessive acceleration amplitude. In the second embodiment of the present invention, the step S400 of adjusting the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value includes:

[0051] S410: Limiting the motor output torque corresponding to the plurality of the excessive acceleration amplitudes so that the plurality of the excessive acceleration amplitudes are not higher than the acceleration target value.

[0052] In the technical solution of this embodiment, since the acceleration amplitude is the excitation source for generating NVH acceleration jitter, and the acceleration amplitude is positively correlated with the motor output torque, therefore, if it is necessary to enable the automobile to always achieve the NVH performance target, when the acceleration amplitude is higher than the acceleration target value to obtain the excessive acceleration amplitude, the motor output torque corresponding to the excessive acceleration amplitude is limited, and the motor output torque is reduced. At this time, the value of the excessive acceleration amplitude is also reduced until the excessive acceleration amplitude is no higher than the acceleration target value, and the adjustment of the acceleration amplitude is completed, so that the automobile can always achieve the NVH performance target.

[0053] Specifically, see Figure 5 In this embodiment, by limiting the output torque of the motor, the acceleration amplitude is always no higher than the acceleration target value, thereby ensuring the NVH performance of the vehicle.

[0054] In a third embodiment of the present invention, the step S400 of adjusting the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value further includes:

[0055] S420. Limit the maximum value of the air spring change stroke corresponding to the multiple excessive acceleration amplitudes to limit the maximum value of the drive shaft angle so that the multiple excessive acceleration amplitudes are not higher than the acceleration target value.

[0056] In the technical solution of this embodiment, similarly, since the acceleration amplitude is the excitation source for generating NVH acceleration vibration, and at the same time, the acceleration amplitude is positively correlated with the air spring variable stroke, therefore, if it is necessary to enable the automobile to always achieve the NVH performance target, when the acceleration amplitude is higher than the acceleration target value to obtain the excessive acceleration amplitude, the maximum value of the air spring variable stroke corresponding to the excessive acceleration amplitude is limited so that the maximum value of the acceleration amplitude is not higher than the acceleration target value, thereby completing the adjustment of the acceleration amplitude and enabling the automobile to always achieve the NVH performance target.

[0057] Specifically, see Figure 5 In this embodiment, by limiting the maximum value of the air spring change stroke, the maximum value of the drive shaft angle is set to 3.7°, so that the acceleration amplitude is always no higher than the acceleration target value, thereby ensuring the NVH performance of the vehicle.

[0058] It should also be noted that the present invention does not limit the specific selection method of the multiple preset speed segments. In one embodiment of the present invention, the values ​​of the multiple preset speed segments are set in an equidistant manner.

[0059] In another embodiment of the present invention, the values ​​of the plurality of preset speed segments can be any values. Figure 6 In this embodiment, different vehicle speeds such as 30km / h, 60km / h, 80km / h, and 100km / h are selected, and the empty spring corresponding to 3.7° of the half-axle is used as the limit height during rapid acceleration at 30km / h, and the empty spring corresponding to 4.0° of the half-axle is used as the limit height during rapid acceleration at 60km / h.

[0060] In a fourth embodiment of the present invention, the step of adjusting the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value further includes:

[0061] S430: Increase the motor speed corresponding to the multiple excessive acceleration amplitudes so that the multiple excessive acceleration amplitudes are not higher than the acceleration target value.

[0062] In the technical solution of this embodiment, similarly, since the acceleration amplitude is the excitation source for generating NVH acceleration jitter, and at the same time, the acceleration amplitude is negatively correlated with the motor speed, therefore, if it is necessary to enable the automobile to always achieve the NVH performance target, when the acceleration amplitude is higher than the acceleration target value to obtain the excessive acceleration amplitude, the acceleration target value is increased so that the maximum value of the acceleration amplitude is not higher than the acceleration target value, thereby completing the adjustment of the acceleration amplitude and enabling the automobile to always achieve the NVH performance target.

[0063] The present invention also proposes a control device for a method for improving automobile vibration, which includes a memory, a processor, and a control program for the method for improving automobile vibration stored in the memory and executable on the processor. The control program for the method for improving automobile vibration is configured to implement the steps of the above-mentioned method for improving automobile vibration.

[0064] Reference below Figure 7 , which shows a schematic diagram of the structure of a control device suitable for implementing the embodiments of the present application. The control device in the embodiments of the present application may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (such as in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. The control device shown in the figure is merely an example and should not limit the functionality and scope of use of the embodiments of the present application.

[0065] like Figure 7As shown, the control device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. RAM 1004 also stores various programs and data required for the operation of the control device. Processing device 1001, ROM 1002, and RAM 1004 are connected to each other via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input device 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output device 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage device 1003 including, for example, a magnetic tape, hard disk, etc.; and communication device 1009. The communication device 1009 can allow the control device to communicate with other devices wirelessly or wired to exchange data. Although the figure shows a control device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have instead.

[0066] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program comprising program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0067] The control device provided in this application, utilizing the vehicle vibration improvement method described in the aforementioned embodiment, can address the technical issues that existing vehicle vibration optimization methods struggle to consistently achieve NVH performance targets and effectively guarantee the NVH performance of entire vehicle batches. Compared to the prior art, the beneficial effects of the control device provided in this application are the same as those of the vehicle vibration improvement method described in the aforementioned embodiment. Other technical features of this control device are the same as those disclosed in the aforementioned embodiment and are not further elaborated here.

[0068] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0069] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0070] The present invention also proposes a car, which includes a control device. The specific structure of the control device refers to the above-mentioned embodiment. Since this car adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0071] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A method for improving automobile vibration, characterized in that: The following steps are involved: Obtain the variable travel of the air spring and the corresponding drive shaft angle of the vehicle in multiple preset modes and form a parameter group; Obtaining acceleration amplitudes corresponding to each of the air spring change stroke and drive shaft angle parameter groups under rapid acceleration of the vehicle in a plurality of preset speed segments; comparing the acceleration target value and the plurality of acceleration amplitudes to obtain a plurality of acceleration excess amplitudes that are higher than the acceleration target value; The plurality of excessive acceleration amplitudes are adjusted so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value.

2. The method for improving automobile vibration according to claim 1, wherein: The step of adjusting the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value comprises: The motor output torque corresponding to the plurality of the excessive acceleration amplitudes is limited so that the plurality of the excessive acceleration amplitudes are not higher than the acceleration target value.

3. The method for improving automobile vibration according to claim 1, wherein: The step of adjusting the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value comprises: The maximum value of the air spring change stroke corresponding to the multiple excessive acceleration amplitudes is limited to limit the maximum value of the drive shaft angle so that the multiple excessive acceleration amplitudes are not higher than the acceleration target value.

4. The method for improving automobile vibration according to claim 1, wherein: The step of adjusting the plurality of excessive acceleration amplitudes so that the plurality of excessive acceleration amplitudes are not higher than the acceleration target value comprises: The motor speed corresponding to the plurality of the excessive acceleration amplitudes is increased so that the plurality of the excessive acceleration amplitudes are not higher than the acceleration target value.

5. The method for improving automobile vibration according to claim 1, wherein: In the step of obtaining the acceleration amplitude corresponding to each of the air spring change stroke and drive shaft angle parameter groups under rapid acceleration of the vehicle in multiple preset speed segments, each of the acceleration amplitudes is obtained by an acceleration sensor. A plurality of acceleration sensors are provided, which are respectively arranged on the vehicle steering wheel, vehicle floor and seat guide rails to detect the acceleration of the vehicle in multiple directions.

6. The method for improving automobile vibration according to claim 1, wherein: The values ​​of the plurality of preset speed segments are arranged in equal intervals.

7. The method for improving automobile vibration according to claim 1, wherein: The acceleration target value is A, A=0.25m / s2.

8. The method for improving automobile vibration according to claim 1, wherein: The plurality of preset modes include a high-speed mode, a sports mode, an economical mode, a high posture, and a low posture.

9. A control device for a method for improving automobile vibration, characterized in that: The control device includes a memory, a processor, and a control program of the vehicle vibration improvement method stored in the memory and executable on the processor. The control program of the vehicle vibration improvement method is configured to implement the steps of the vehicle vibration improvement method as described in any one of claims 1 to 8.

10. An automobile, characterized in that: The automobile includes the control device of the automobile vibration improvement method according to claim 9.

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