Automobile vibration improvement method, control device and automobile

Abstract

The invention discloses an automobile vibration improving method, a control device and an automobile, and relates to the technical field of automobile design, and the automobile vibration improving method comprises the following steps that air spring change strokes and corresponding driving shaft included angles of the automobile in a plurality of preset modes are obtained, and a parameter set is formed; the acceleration amplitude corresponding to each air spring change stroke and the driving shaft included angle parameter set under the condition that the automobile is rapidly accelerated at multiple preset speed vehicle speed sections is obtained; comparing an acceleration target value with the plurality of acceleration amplitudes to obtain a plurality of acceleration excess amplitudes higher than the acceleration target value; and the multiple acceleration excess amplitudes are adjusted, so that the multiple acceleration excess amplitudes are not higher than the acceleration target value. By means of the arrangement, the NVH performance target can be achieved all the time when the automobile runs, and the NVH performance of the whole automobile batch can be effectively guaranteed.

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] Air suspension vehicles generally have multiple modes, such as high-speed mode, sports mode, economy mode, high posture, low posture, etc. Different suspension posture heights are set to cope with different scenarios. The maximum adjustment range of air suspension for some models is 90mm (40mm higher - 50mm lowered). The suspension height can be adjusted manually or automatically according to the current vehicle speed. In addition to height, users can also change the hardness of the suspension by adjusting the driving mode according to their needs to meet the requirements for suspension stiffness and shock absorber damping under different road conditions.

[0003] However, when the whole vehicle is being developed, the working angle of the constant velocity joint is optimal when it meets the design state, that is, it is sufficient 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 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 There will be acceleration jitter problems, that is, steering wheel jitter or chassis vibration problems, which will affect the NVH performance of the whole vehicle, accelerate the wear of the constant velocity joint, reduce its service life, and cause customer complaints. The existing technology mainly improves the 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 among vehicles, and the NVH performance of the whole 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 whole vehicle batch.

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

[0006] Obtain the change stroke of the empty spring and the corresponding drive shaft angle of the vehicle in multiple preset modes, and form a parameter group;

[0007] Obtaining the acceleration amplitude corresponding to each of the air spring change stroke and the drive shaft angle parameter group under the rapid acceleration of the vehicle in multiple preset speed segments;

[0008] Comparing the acceleration target value and the plurality of acceleration amplitudes to obtain a plurality of acceleration excess amplitudes 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 acceleration excess amplitudes is limited to limit the maximum value of the drive shaft angle so that the multiple acceleration excess 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 speeds corresponding to the multiple acceleration excess amplitudes are increased so that the multiple acceleration excess 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 the drive shaft angle parameter group 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, the vehicle floor and the seat 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, A=0.25m / 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, the control device comprising 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 being 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 of 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 empty 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 because the vibrations generated by the automobile when running at different speeds are also different, therefore, it is necessary to make the automobile perform rapid acceleration in a plurality of the preset speed sections, and in each of the preset speed sections, the automobile needs to perform rapid acceleration with a plurality of the empty spring change stroke and drive shaft angle parameter groups, so as to obtain a plurality of corresponding acceleration amplitudes. By comparing the acceleration target value and the multiple acceleration amplitudes, it is possible to obtain the acceleration amplitudes whose values ​​are not higher than the acceleration target value and 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0024] Figure 1A schematic flow chart of a first embodiment of a method for improving automobile vibration 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 realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are 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 in a certain specific posture. If the specific posture changes, the directional indication 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 used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the 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 contradictory or cannot be implemented, it should be deemed that such 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 the existing automobile vibration optimization method is difficult to make the automobile always reach the NVH performance target and cannot effectively guarantee the NVH performance of the whole 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 change stroke of the empty spring of the vehicle in multiple preset modes and the corresponding drive shaft angle, and forming a parameter group;

[0038] It should be noted that, usually, a car has multiple modes, and in the multiple preset modes, multiple parameters of the car are different. Therefore, it is necessary to obtain the change of the air spring and the corresponding drive shaft angle of the car in the multiple preset modes.

[0039] S200, obtaining the acceleration amplitude corresponding to each of the air spring change stroke and the drive shaft angle parameter group when the vehicle is rapidly accelerated in a plurality of preset speed segments;

[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 stroke and drive shaft angle parameter groups to refine the change 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 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, adjusting 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 empty 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 because the vibrations generated by the automobile when running at different speeds are also different, therefore, it is necessary to make the automobile perform rapid acceleration in a plurality of the preset speed sections, and in each of the preset speed sections, the automobile needs to perform rapid acceleration with a plurality of the empty spring change stroke and drive shaft angle parameter groups, so as to obtain a plurality of corresponding acceleration amplitudes. By comparing the acceleration target value and the multiple acceleration amplitudes, it is possible to obtain the acceleration amplitudes whose values ​​are not higher than the acceleration target value and 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 the step S200, the acceleration amplitude corresponding to each of the air spring change stroke and the drive shaft angle parameter group is obtained under the rapid acceleration of the automobile in multiple preset speed segments, and each of the acceleration amplitudes is obtained by an acceleration sensor, and the acceleration sensors are provided in plurality, which are respectively provided on the automobile steering wheel, the automobile floor and the seat rails to detect the acceleration of the automobile in multiple directions. In this way, the plurality of acceleration sensors can jointly detect the acceleration amplitude corresponding to the automobile in multiple preset modes and the preset speed segments, 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 a high-speed mode, a sports mode, and an economic mode; and in another embodiment of the present invention, the preset mode includes a high posture and a low posture.

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

[0048] Of course, the present invention also does not limit 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 adjustment method of the excessive acceleration amplitude. In the second embodiment of the present invention, the step S400 of adjusting the multiple excessive acceleration amplitudes so that the multiple excessive acceleration amplitudes are not higher than the acceleration target value includes:

[0051] S410. Limiting the motor output torque corresponding to the multiple excessive acceleration amplitudes so that the multiple 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, the motor output torque is limited so that 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, limiting the maximum value of the air spring change stroke corresponding to the multiple acceleration excess amplitudes to limit the maximum value of the drive shaft angle so that the multiple acceleration excess amplitudes are not higher than the acceleration target value.

[0056] In the technical solution of the present embodiment, similarly, since the acceleration amplitude is the excitation source for generating NVH acceleration jitter, 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 change stroke of the air spring, the maximum value of the drive shaft angle is made 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 arranged in an equidistant manner.

[0059] In another embodiment of the present invention, the values ​​of the plurality of preset speed segments can be arbitrarily set. Figure 6 In this embodiment, different vehicle speeds such as 30km / h, 60km / h, 80km / h, and 100km / h are selected. The empty spring corresponding to 3.7° of the half-axle is used as the limit height during sudden acceleration at 30km / h, and the empty spring corresponding to 4.0° of the half-axle is used as the limit height during sudden 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, increasing 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, the control device comprising 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 being 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 an embodiment of the present application. The control device in the embodiment 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), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. The control device shown in the figure is only an example and should not bring any limitation to the functions 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 processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the control device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the control device to communicate with other devices wirelessly or by wire to exchange data. Although the control device with various systems is shown in the figure, 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 alternatively.

[0066] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a 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 through 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 by the present application adopts the automobile vibration improvement method in the above embodiment, which can solve the technical problem that the existing automobile vibration optimization method is difficult to make the automobile always reach the NVH performance target, and cannot effectively guarantee the NVH performance of the whole vehicle batch. Compared with the prior art, the beneficial effects of the control device provided by the present application are the same as the beneficial effects of the automobile vibration improvement method provided by the above embodiment, and the other technical features in the control device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0068] It should be understood that the various parts disclosed in this application can be implemented by 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 is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope 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 the car adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0071] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are 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 change stroke of the empty spring and the corresponding drive shaft angle of the vehicle in multiple preset modes, and form a parameter group; Obtaining the acceleration amplitude corresponding to each of the air spring change stroke and the drive shaft angle parameter group under the rapid acceleration of the vehicle in multiple preset speed segments; Comparing the acceleration target value and the plurality of acceleration amplitudes to obtain a plurality of acceleration excess amplitudes 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, characterized in that: 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, characterized in that: 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 acceleration excess amplitudes is limited to limit the maximum value of the drive shaft angle so that the multiple acceleration excess amplitudes are not higher than the acceleration target value.

4. The method for improving automobile vibration according to claim 1, characterized in that: 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 speeds corresponding to the multiple acceleration excess amplitudes are increased so that the multiple acceleration excess amplitudes are not higher than the acceleration target value.

5. The method for improving automobile vibration according to claim 1, characterized in that: In the step of obtaining the acceleration amplitude corresponding to each of the air spring change stroke and the drive shaft angle parameter group when the automobile 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 automobile steering wheel, the automobile floor and the seat rails to detect the acceleration of the automobile in multiple directions.

6. The method for improving automobile vibration according to claim 1, characterized in that: The values ​​of the plurality of preset speed segments are arranged in an equidistant manner.

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

8. The method for improving automobile vibration according to claim 1, characterized in that: The plurality of preset modes include a high speed mode, a sports mode, an economic 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, wherein 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 vehicle includes the control device of the vehicle vibration improvement method according to claim 9.

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