Vibration reduction system, control method thereof, and vehicle

Abstract

The present invention discloses a vibration reduction system, a control method thereof and a vehicle. The control method of the vibration reduction system includes: confirming that the acceleration of the vibration reduction device is not within the preset acceleration threshold; the vibration reduction device performs damping correction; wherein, before the vibration reduction device performs damping correction, the control method also includes: confirming that the displacement of the vibration reduction device reaches the preset displacement threshold. Thus, by judging the acceleration and displacement of the vibration reduction device included in the vibration reduction system when subjected to external excitation, it is determined whether to adjust and correct the damping of the vibration reduction device, so that the vibration reduction system can quickly adjust the damping according to the excitation signal of the vehicle in time to achieve vibration reduction, and avoid the situation that the signal obtained by the acceleration sensor is difficult to judge whether the vibration reduction effect of the vibration reduction system is in a suitable position due to the large acceleration and high vibration frequency, and the displacement sensor is combined so as to better cope with complex working conditions, reduce the influence of vibration on the components inside the battery pack, and improve the vibration reduction effect of the vibration reduction system.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vibration reduction system and a control method thereof, and a vehicle. Background Art

[0002] In the prior art, the battery pack and the frame are generally directly connected, and the upper vibration of the frame is easily transmitted to the battery pack, reducing the reliability and stability of the battery pack installation. The vibration will damage the precision components in the battery pack, affecting the use of the battery pack and having a poor vibration reduction effect on the battery pack. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the first object of the present invention is to provide a control method for a vibration reduction system to achieve good vibration reduction effect under complex working conditions.

[0004] The second object of the present invention is to provide a vibration reduction system, which adopts the above control method.

[0005] The third object of the present invention is to provide a vehicle comprising the above-mentioned vibration reduction system.

[0006] According to a control method of a vibration reduction system according to a first aspect of an embodiment of the present invention, the control method comprises:

[0007] Confirm that the acceleration of the shock absorber is not within the preset acceleration threshold;

[0008] The shock absorber performs damping correction;

[0009] Wherein, before the shock absorber (2) performs damping correction, the control method further comprises:

[0010] Confirming that the displacement of the shock absorber (2) reaches a preset displacement threshold.

[0011] According to the control method of the vibration reduction system of the embodiment of the present invention, by judging the acceleration and displacement of the vibration reduction device included in the vibration reduction system when subjected to external excitation, it is determined whether to adjust and correct the damping of the vibration reduction device, so that the vibration reduction system can quickly adjust the damping according to the excitation signal of the vehicle in time to achieve vibration reduction, thereby avoiding the situation where the signal obtained by the acceleration sensor is difficult to judge whether the vibration reduction effect of the vibration reduction system is in a suitable position due to the large acceleration and high vibration frequency. The displacement sensor is combined to better cope with complex working conditions, reduce the influence of vibration on the components inside the battery pack, and improve the vibration reduction effect of the vibration reduction system.

[0012] In some embodiments, the shock absorber damping modification includes:

[0013] The decision module obtains a signal indicating that the acceleration of the shock absorber is not within a preset acceleration threshold;

[0014] The shock absorber is controlled to perform damping correction.

[0015] In some embodiments, after the shock absorber performs damping correction, the control method further includes:

[0016] The displacement of the shock absorber still reaches the preset displacement threshold, and the shock absorber performs damping correction.

[0017] In some embodiments, before the acceleration of the shock absorber is within a preset acceleration threshold, the control method further includes:

[0018] The force sensor obtains the signal of external excitation;

[0019] The acceleration sensor acquires the signal of the force sensor.

[0020] In some embodiments, a signal of external excitation is obtained; and the shock absorber is controlled to initially damp vibration.

[0021] In some embodiments, controlling the initial vibration reduction of the vibration absorber comprises:

[0022] confirming that the shock absorber reaches a preset damping value;

[0023] The shock absorber performs damping correction.

[0024] According to the vibration reduction system of the second aspect of the present invention, the control method of the vibration reduction system described in any one of the above embodiments is adopted, and the vibration reduction system includes: a shock absorber and a force sensor, wherein the force sensor is arranged on the shock absorber, and the force sensor communicates with the shock absorber.

[0025] In some embodiments, the vibration damper is a magnetorheological vibration damper.

[0026] According to the vehicle of the third aspect embodiment of the present invention, it includes: a battery management system and a vibration reduction system, the battery management system includes a processor, a decision module and a control module, the decision module and the control module communicate with the processor; the vibration reduction system is electrically connected to the battery management system, the processor communicates with the force sensor of the vibration reduction system, and the vibration reduction system is the vibration reduction system described in the above embodiment.

[0027] In some embodiments, the vibration reduction system includes: an acceleration sensor and a displacement sensor, the acceleration sensor and the displacement sensor communicate with the processor, the decision module communicates with the control module, the decision module obtains the signal of the acceleration sensor and the signal of the displacement sensor and transmits them to the control module, and the control module communicates with the shock absorber of the vibration reduction system.

[0028] In some embodiments, the vehicle further includes: a frame and a battery pack, and the shock absorber of the vibration reduction system connects the frame and the battery pack.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 is a schematic diagram of assembling a battery pack and a shock absorber according to an embodiment of the present invention;

[0032] Figure 2 is a cross-sectional schematic diagram of a shock absorber according to an embodiment of the present invention;

[0033] Figure 3 1 is a flow chart of a control method for a vibration reduction system according to an embodiment of the present invention.

[0034] Reference numerals:

[0035] 1. Battery pack; 2. Shock absorber;

[0036] 10. Shell;

[0037] 21. upper piston; 211. damping channel; 212. electromagnetic coil; 22. lower piston;

[0038] 31. Upper chamber; 32. Lower chamber. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 3 A control method of a vibration reduction system according to an embodiment of the present invention is described.

[0040] Specifically, combined Figure 3 , control methods include:

[0041] Confirm that the acceleration of shock absorber 2 is not within the preset acceleration threshold;

[0042] Shock absorber 2 performs damping correction;

[0043] Before the shock absorber 2 performs damping correction, the control method further includes:

[0044] It is confirmed that the displacement of the shock absorber 2 reaches the preset displacement threshold.

[0045] In this embodiment, the vibration reduction system is used for vibration reduction between the battery pack 1 and the frame of the vehicle, and adjusts the damping in real time. The vehicle will vibrate during driving, and the vibration reduction system can obtain signals of external excitation of the vehicle, including the vehicle's motion information and road surface information, and feedback the acquired information through the decision module of the battery pack 1 management system of the vehicle, and change the damping force of the vibration reduction system through the output electrical signal to achieve the vibration reduction effect and adjust the vibration reduction of the vibration reduction system. When the acceleration of the vibration reduction system is not within the preset acceleration threshold range, the vibration reduction system adjusts the damping value of the system so that the vibration reduction system always maintains the best damping value output, thereby improving the stability of the vibration reduction system.

[0046] In this embodiment, the control method of the vibration reduction system is to start the damping correction of the vibration reduction system when the adjustment effect is not ideal after the vibration reduction system realizes the preliminary vibration reduction adjustment, such as when the vibration reduction system detects that the damping value in the shock absorber 2 reaches the preset damping value at this time, and the acceleration sensor judges based on the signal of external excitation. If the acceleration of the shock absorber 2 is not within the preset threshold range, the decision module obtains the signal of the acceleration sensor to control the output of the electrical signal, and the vibration reduction system adjusts the damping inside the shock absorber 2 according to the output electrical signal.

[0047] When the decision module does not output an electrical signal, the output damping of the shock absorber 2 increases with the increase of speed, providing initial vibration damping. When the decision module outputs an electrical signal, it has a rapid damping increase effect for the faster vibration of the shock absorber 2. However, at this time, due to the large acceleration and high vibration frequency, the signal obtained by the acceleration sensor is difficult to determine whether the vibration reduction effect of the vibration reduction system is in a suitable position, and a damping correction is required through a displacement sensor. That is, by changing the magnitude of the current in the shock absorber 2 to control the shear stress between the magnetorheological fluid and the magnetic pole surface in the gap of the damping channel 211, the output damping value is continuously variable. At the same time, the pressure on the magnetorheological fluid flows into the gap of the damping channel 211 to adjust the output damping of the shock absorber 2.

[0048] According to the control method of the vibration reduction system of the embodiment of the present invention, by judging the acceleration and displacement of the shock absorber 2 included in the vibration reduction system when subjected to external excitation, it is determined whether to adjust and correct the damping of the shock absorber 2, so that the vibration reduction system can quickly adjust the damping according to the excitation signal of the vehicle in time to achieve vibration reduction, thereby avoiding the situation where the signal obtained by the acceleration sensor is difficult to judge whether the vibration reduction effect of the vibration reduction system is in a suitable position due to the large acceleration and high vibration frequency. The displacement sensor is combined to better cope with complex working conditions, reduce the influence of vibration on the internal components of the battery pack 1, and improve the vibration reduction effect of the vibration reduction system.

[0049] In some embodiments, the shock absorber 2 damping modification includes:

[0050] The decision module obtains a signal that the acceleration of the shock absorber 2 is not within a preset acceleration threshold;

[0051] The shock absorber 2 is controlled to perform damping correction.

[0052] That is, in this embodiment, the decision module communicates with the acceleration sensor to obtain the signal of the acceleration sensor. When the vibration reduction system is subjected to external excitation, the shock absorber 2 vibrates to generate acceleration. When the decision module receives a signal that the acceleration is not within the preset acceleration threshold, the decision module outputs an electrical signal. The shock absorber 2 included in the vibration reduction system controls the magnitude of the electromagnetic force in the shock absorber 2 according to the transmitted electrical signal, thereby adjusting the stiffness and damping of the shock absorber 2, thereby achieving adjustment of the damping of the vibration reduction system, which can more effectively ensure the health of the internal components of the battery pack 1.

[0053] In some embodiments, Figure 3 As shown, after the shock absorber 2 performs damping correction, the control method further includes:

[0054] The displacement of the shock absorber 2 still reaches the preset displacement threshold, and the shock absorber 2 performs damping correction.

[0055] When the decision module is to control the output of the electrical signal, the output damping of the shock absorber 2 increases with the increase of speed, that is, the increase of vibration frequency, providing initial vibration damping. After the output of the control electrical signal, the magnetorheological fluid in the shock absorber 2 presents nonlinear regulation, which has a rapid damping increase effect for faster vibrations, and a continuous and stable damping effect for continuous high vibration speeds. Since this process is relatively fast, it is difficult for the acceleration sensor to accurately judge the balance of the vibration reduction system, and it needs to be corrected by the displacement sensor at the same time.

[0056] That is, in this embodiment, when the acceleration is not within the preset acceleration threshold range and the displacement reaches the preset displacement threshold, the decision module outputs a corresponding electrical signal according to the displacement information and the acceleration information, and the vibration reduction system adjusts the damping value of the shock absorber 2 according to the output electrical signal until the damping correction of the shock absorber 2 is completed and the displacement of the shock absorber 2 detected by the displacement sensor is less than the preset displacement threshold. Therefore, by arranging a displacement sensor on the shock absorber 2, so that the displacement sensor can detect the displacement of the shock absorber 2 in real time, and judging whether to continue to output the electrical signal to adjust the damping value of the shock absorber 2 through the decision module according to the result, a higher vibration reduction effect has been achieved.

[0057] Furthermore, the control method further includes: when the displacement of the shock absorber 2 does not reach the preset displacement threshold, the damping correction of the vibration reduction system is completed. When the acceleration is within the preset acceleration threshold range, the vibration reduction system does not perform damping correction, and at this time, the vibration reduction effect of the vibration reduction system is good, ensuring that the entire system is not damaged.

[0058] In some embodiments, before the acceleration of the shock absorber 2 is within a preset acceleration threshold, the control method further includes:

[0059] The force sensor obtains the signal of external excitation;

[0060] The acceleration sensor acquires the signal of the force sensor.

[0061] In this embodiment, the force sensor is arranged at the bottom of the shock absorber 2. When the shock absorber 2 is subjected to external excitation, the force sensor obtains the signal of the external excitation and converts the amount of force into an electrical signal to control the movement of the shock absorber 2. The acceleration sensor obtains the acceleration of the shock absorber 2. When the obtained acceleration is within the preset acceleration threshold range, the vibration reduction effect of the vibration reduction system is good and no damping correction is required. When the obtained acceleration is not within the preset acceleration threshold range, the decision module outputs a corresponding electrical signal to adjust the damping of the shock absorber 2 according to the obtained acceleration signal. In the damping adjustment process, the displacement information is further obtained according to the displacement sensor arranged in the shock absorber 2. If the displacement of the shock absorber 2 reaches the preset displacement threshold, the decision module obtains the displacement information and outputs an electrical signal to control the damping of the shock absorber 2, thereby realizing the correction of the damping of the vibration reduction system.

[0062] In some embodiments, an external excitation signal is obtained; and the initial vibration reduction of the shock absorber 2 is controlled. In this embodiment, the vibration reduction system is always in operation. In the initial stage, the shock absorber 2 uses its own physical properties to achieve vibration reduction. When the damping of the shock absorber 2 reaches the preset damping value, the acceleration sensor included in the vibration reduction system obtains the signal of the force sensor and determines whether the acceleration is within the preset range. If the acceleration is not within the preset threshold range of the acceleration, the damping can be adjusted through the decision module. Therefore, the setting of initial vibration reduction can avoid the delayed response of the vibration reduction system, improve the timeliness and rapidity of the response of the vibration reduction system, and reduce the impact of vibration on the precision components inside the battery pack 1, effectively improving the service life of the battery pack 1 and improving the safety during use.

[0063] In some embodiments, controlling the initial vibration reduction of the vibration absorber 2 includes:

[0064] Confirming that the shock absorber 2 reaches a preset damping value;

[0065] The shock absorber 2 performs damping correction.

[0066] That is, during the initial vibration reduction process of the vibration reduction system, the vibration reduction system needs to determine whether the preset damping value is reached based on the real-time damping of the shock absorber 2, thereby determining whether the vibration reduction system needs to perform damping correction, so that the vibration reduction system can maintain a good vibration reduction effect in real time.

[0067] According to the vibration reduction system of the second aspect of the present invention, the control method of the vibration reduction system of any one of the above embodiments is adopted, and the vibration reduction system includes: a shock absorber 2 and a force sensor, wherein the force sensor is arranged on the shock absorber 2, and the force sensor communicates with the shock absorber 2.

[0068] In this embodiment, the force sensor is arranged at the bottom of the shock absorber 2, and is used to collect and upload the vibration state of the shock absorber 2, and form a perception signal to the battery management system, change the electrical signal transmitted to the shock absorber 2, and change the damping of the shock absorber 2.

[0069] Among them, shock absorber 2 is shock absorber 2. Shock absorber 2 uses electromagnetic reaction to respond to road conditions and driving environment in real time based on input information from force sensors. Magnetorheological fluid is a magnetic soft particle suspension composed of tiny soft magnetic particles with high magnetic permeability and low magnetic hysteresis and non-magnetic conductive liquid. This suspension exhibits low viscosity characteristics under zero magnetic field conditions, and exhibits high viscosity and low fluidity liquid characteristics under strong magnetic field. It is this rheological controllability of magnetorheological fluid that enables it to achieve continuous variable damping force, thereby achieving the purpose of active control of vibration. When the liquid is injected into the electromagnetic coil 212 in the piston of shock absorber 2, the magnetic field of the coil will change its rheological characteristics (or generate fluid resistance), thereby generating a damping force with rapid response and strong controllability in the absence of an electromechanical control valve and a simple mechanical device.

[0070] When the vibration reduction system is subjected to external excitation, the piston of the vibration reduction device 2 will have an initial vibration reduction process. Since the magnetorheological fluid in the vibration reduction device 2 exhibits ordinary fluid properties in a non-magnetic environment and has a low viscosity, a certain vibration reduction effect can be achieved through the movement of the piston. When the damping value of the vibration reduction device 2 is detected to reach the preset damping value after the initial vibration reduction, the vibration reduction system begins to correct the damping to adjust the damping value of the vibration reduction system within an appropriate range to ensure a good vibration reduction effect of the vibration reduction system.

[0071] The shock absorber 2 has good stability, and has good corrosion resistance, oil resistance, temperature resistance, etc. The adjustable damping can effectively reduce vibration in low, medium and high frequency vibration domains.

[0072] According to the vehicle of the third aspect embodiment of the present invention, it includes: a battery management system and a vibration reduction system, the battery management system includes a processor and a decision module, the decision module communicates with the processor; the vibration reduction system is electrically connected to the battery management system, the processor communicates with the force sensor of the vibration reduction system, and the vibration reduction system is the vibration reduction system of the above embodiment.

[0073] The vibration reduction system communicates with the battery management system. The vibration reduction system obtains the vehicle's status information through the force sensor. The processor obtains the vehicle's status information to determine the degree of adjustment of the vibration reduction system. The processor analyzes and processes the obtained status information and outputs electrical signals. The control module transmits the electrical signal to the electromagnetic coil 212 set in the shock absorber 2, and controls the size of the magnetic field by controlling the size of the current to form the required damping adjustment, so that a safer and faster vibration reduction system can be formed.

[0074] In some embodiments, the vibration reduction system includes: an acceleration sensor and a displacement sensor, the acceleration sensor and the displacement sensor communicate with the processor, and the decision module obtains the signal of the acceleration sensor and the signal of the displacement sensor and then outputs an electrical signal to the vibration reducer 2.

[0075] That is, after the initial vibration reduction of the vibration reduction system, the damping value of the vibration reduction system still reaches the preset damping value, and the vibration reduction effect is not ideal. It is necessary to adjust the vibration reduction of the vibration reduction system to be within a reasonable range. The acceleration sensor obtains the signal of the force sensor and makes a judgment. When the acceleration of the shock absorber 2 is not within the acceleration preset threshold range set by the vibration reduction system, the processor controls the decision module to output an electrical signal to the shock absorber 2 after analysis and processing, so as to adjust the current and magnetic field inside the shock absorber 2. When the damping value of the vibration reduction system still reaches the preset damping value, the displacement sensor in the vibration reduction system obtains the displacement information of the piston in the shock absorber 2 and forms a signal to be transmitted to the decision module. When the decision module determines that the displacement reaches the preset displacement threshold, it outputs a corresponding electrical signal to adjust the current in the shock absorber 2, so as to correct the damping in the shock absorber 2 until the vibration reduction system is in a relatively stable state.

[0076] When the decision module determines that the displacement has not reached the preset displacement threshold, the acceleration sensor continues to obtain the signal of the force sensor, and the decision module continuously obtains the signal of the acceleration sensor to output an electrical signal until the acceleration of the shock absorber 2 completes the adjustment of the vibration reduction stability of the vibration reduction system within the preset acceleration threshold.

[0077] In some embodiments, Figure 1 As shown, the vehicle further includes: a vehicle frame, a battery pack 1 , and a shock absorber 2 of a shock absorption system connecting the vehicle frame and the battery pack 1 .

[0078] One end of the shock absorber 2 can be connected to the side ear of the battery pack 1, or the side beam or sealing cover of the battery pack 1, and the other end of the shock absorber 2 is connected to the vehicle frame. In this embodiment, a plurality of mounting ears are provided on the peripheral side of the battery pack 1, and a plurality of shock absorbers 2 are fitted at the mounting ears. The mounting ears are fixedly connected to the housing 10 of the shock absorber 2, and the upper piston 21 and the lower piston 22 of the shock absorber 2 are respectively fixedly connected to the vehicle frame. The upper and lower pistons 22 move toward and away from each other in the housing 10 of the shock absorber 2. When the electrical signal of the electromagnetic coil 212 input into the shock absorber 2 changes, the magnetic field in the shock absorber 2 can be changed to generate fluid resistance to adjust the damping value of the shock absorber 2.

[0079] When the upper piston 21 moves relative to the housing 10 of the shock absorber 2, the electromotive force generated by cutting the magnetic flux lines in the housing 10 will transmit an electromotive force signal to the processor, and the processor infers the initial speed signal based on the electromotive force signal, and controls the shock absorber 2 through the control algorithm. And in the vibration reduction process, the output electrical signal of the decision module is adjusted by the signal fed back by the displacement sensor, so as to adjust the output damping value for correction to achieve the best vibration reduction effect. In this embodiment, the preset damping value is the upper limit value of the damping of the shock absorber 2 in a non-magnetic environment.

[0080] like Figure 2 As shown, the upper piston 21 and the lower piston 22 define an upper chamber 31 and a lower chamber 32 with the housing 10, respectively. The volume difference between the two chambers can be absorbed by the volume change of the lower chamber 32 as an air storage chamber, ensuring the balance of the shock absorber 2 system. The existence of the piston and the air storage chamber ensures that the shock absorber 2 can carry a large weight range, meeting the shock absorption weight of the battery pack 1 of existing heavy vehicles, special vehicles and high-end models. And because the piston is directly installed in the housing 10 and does not contact the inner wall of the housing 10, the assembly efficiency of the shock absorber 2 can be improved, which is conducive to increasing the service life of the shock absorber 2.

[0081] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0082] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. In the description of the present invention, a first feature "above", "above" and "above" a second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0084] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A control method for a vibration reduction system, It is characterized in that include: Obtain external stimulus signals; Controlling initial vibration reduction of the vibration damper (2); Controlling the initial vibration reduction of the vibration absorber (2) comprises: Confirming that the shock absorber (2) reaches a preset damping value; The shock absorber (2) performs damping correction; Confirming that the acceleration of the shock absorber (2) is not within a preset acceleration threshold; The shock absorber (2) performs damping correction; Wherein, after confirming that the acceleration of the shock absorber (2) is not within a preset acceleration threshold, before the shock absorber (2) performs damping correction, the control method further comprises: Confirming that the displacement of the shock absorber (2) reaches a preset displacement threshold.

2. The control method of the vibration reduction system according to claim 1, It is characterized in that controlling the initial vibration reduction of the shock absorber (2), confirming that the shock absorber (2) reaches a preset damping value, The damping correction of the shock absorber (2) comprises: The decision module obtains a signal indicating that the acceleration of the shock absorber (2) is not within a preset acceleration threshold; The shock absorber (2) is controlled to perform damping correction.

3. The control method of the vibration reduction system according to claim 1, It is characterized in that After confirming that the acceleration of the shock absorber (2) is not within a preset acceleration threshold and the shock absorber (2) performs damping correction, the control method further comprises: The displacement of the shock absorber (2) still reaches the preset displacement threshold, and the shock absorber (2) performs damping correction.

4. The control method of the vibration reduction system according to claim 1, It is characterized in that Before confirming that the acceleration of the shock absorber (2) is not within a preset acceleration threshold, the control method further comprises: The force sensor obtains the signal of external excitation; The acceleration sensor acquires the signal of the force sensor.

5. A vibration reduction system, using the control method of the vibration reduction system according to any one of claims 1 to 4, It is characterized in that include: Shock absorber (2); A force sensor, the force sensor being arranged on the shock absorber (2), the force sensor communicating with the shock absorber (2).

6. The vibration reduction system according to claim 5, It is characterized in that The vibration damper (2) is a magnetorheological vibration damper.

7. A vehicle, It is characterized in that include: A battery management system, the battery management system comprising a processor, a decision module and a control module, the decision module and the control module communicating with the processor; A vibration reduction system, wherein the vibration reduction system is electrically connected to the battery management system, the processor communicates with a force sensor of the vibration reduction system, and the vibration reduction system is the vibration reduction system according to claim 5 or 6.

8. The vehicle according to claim 7, It is characterized in that The vibration reduction system comprises: An acceleration sensor and a displacement sensor, the acceleration sensor and the displacement sensor communicate with the processor, the decision module communicates with the control module, the decision module obtains the signal of the acceleration sensor and the signal of the displacement sensor and transmits them to the control module, and the control module communicates with the shock absorber (2) of the shock absorption system.

9. The vehicle according to claim 8, It is characterized in that Also includes: Frame; A battery pack (1), wherein the vibration damper (2) of the vibration damping system is connected to the vehicle frame and the battery pack (1).

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