CN116691856A - Vibration damping system, control method of vibration damping system and vehicle - Google Patents
Vibration damping system, control method of vibration damping system and vehicle Download PDFInfo
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- CN116691856A CN116691856A CN202310803990.1A CN202310803990A CN116691856A CN 116691856 A CN116691856 A CN 116691856A CN 202310803990 A CN202310803990 A CN 202310803990A CN 116691856 A CN116691856 A CN 116691856A
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- vibration reduction
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- damping
- cab
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- 238000013016 damping Methods 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000009467 reduction Effects 0.000 claims abstract description 78
- 230000033001 locomotion Effects 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 230000000712 assembly Effects 0.000 claims abstract description 28
- 238000000429 assembly Methods 0.000 claims abstract description 28
- 230000035939 shock Effects 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 238000004378 air conditioning Methods 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 abstract description 10
- 230000008859 change Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/08—Superstructures for load-carrying vehicles comprising adjustable means
- B62D33/10—Superstructures for load-carrying vehicles comprising adjustable means comprising means for the suspension of the superstructure on the frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension
- B62D33/0608—Cabs insulated against vibrations or noise, e.g. with elastic suspension pneumatic or hydraulic suspension
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/027—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means comprising control arrangements
Abstract
The application relates to a vibration damping system, a control method of the vibration damping system and a vehicle. The device comprises an acquisition mechanism, a vibration reduction mechanism and a control unit, wherein the acquisition mechanism comprises a plurality of acquisition components which are distributed on a vehicle at intervals and are used for acquiring motion state information of the vehicle; the vibration reduction mechanism comprises a plurality of vibration reduction assemblies which are distributed on the vehicle at intervals, the vibration reduction assemblies are used for being connected between the frame and the cab, and the vibration reduction assemblies are configured to be capable of extending and retracting between the frame and the cab; the control unit is respectively and electrically connected with the plurality of acquisition assemblies and the plurality of vibration reduction assemblies; the control unit is used for controlling the damping size of the vibration reduction mechanism according to the acquired motion state information. The application monitors the motion state of the vehicle in real time and feeds back the motion state to the control unit, and the control unit immediately adjusts the output control current, so that the damping of the damping mechanism is regulated and controlled, the vehicle can change the damping of the damping system in real time according to the current road condition, and the driving comfort of the vehicle is improved.
Description
Technical Field
The application relates to the technical field of vehicle vibration reduction systems, in particular to a vibration reduction system, a control method of the vibration reduction system and a vehicle.
Background
Commercial vehicles play a very important role in national economic development and have become a medium strength for bearing cargo transportation, passenger transportation and engineering construction.
Because commercial vehicles have the characteristics of long driving time and complex driving road conditions, the comfort of the commercial vehicles is very important for drivers of the commercial vehicles. Among them, the vibration damping performance of the cab suspension system plays an important role in driving comfort and steering stability of the commercial vehicle.
The cab suspension system in the related art generally adopts a passive vibration damping system, but the passive vibration damping system can only passively adapt and feed back the load of the road surface, the self damping of the passive vibration damping system can not be adjusted, the system can not adapt to the comfort requirements under different working conditions (road conditions), and the problem of poor comfort exists.
Disclosure of Invention
In order to solve the problem of poor comfort of a cab suspension system in the related art, the application provides a vibration reduction system and a vehicle.
In a first aspect, the present application provides a vibration damping system, which adopts the following technical scheme:
the vibration reduction system comprises an acquisition mechanism, a vibration reduction mechanism and a control unit, wherein the acquisition mechanism comprises a plurality of acquisition components, the acquisition components are used for being distributed on a vehicle at intervals, and the acquisition components are used for acquiring motion state information of the vehicle; the vibration reduction mechanism comprises a plurality of vibration reduction assemblies, wherein the vibration reduction assemblies are used for being distributed on the vehicle at intervals, the vibration reduction assemblies are used for being connected between a frame of the vehicle and a cab of the vehicle, and the vibration reduction assemblies are configured to be capable of extending and retracting between the frame and the cab; the control unit is respectively and electrically connected with the plurality of acquisition assemblies and the plurality of vibration reduction assemblies; the control unit is used for controlling the damping size of the vibration reduction mechanism according to the motion state information acquired by the acquisition component.
In one embodiment, the vibration damping assembly includes at least one vibration damping portion; the vibration reduction part comprises an elastic piece and a vibration reduction device body, wherein the elastic piece is positioned between the frame and the cab, the vibration reduction device body is arranged in the elastic piece, one end of the vibration reduction device body extends out of the elastic piece and is connected with the frame, and the other end of the vibration reduction device body extends out of the elastic piece and is connected with the cab.
In one embodiment, the vibration damping portion further includes a first fixing member, a second fixing member, a first connecting member and a second connecting member, the vibration damper body is disposed between the first connecting member and the second connecting member, and the first connecting member, the second connecting member and the vibration damper body are disposed between the first fixing member and the second fixing member; the first fixing piece is arranged at one end of the shock absorber body and connected with the cab, and the second fixing piece is arranged at the other end of the shock absorber body and connected with the frame; one end of the damper body is connected to the first fixing piece by means of the first connecting piece, and the other end of the damper body is connected to the second fixing piece by means of the second connecting piece.
In one embodiment, the central axes of the first connector, the second connector and the damper body coincide with each other.
In one embodiment, the vibration damping portion further includes a connecting bush, the connecting bush is disposed between the vibration damper body and the first fixing member, and the connecting bush is sleeved on a side wall of the first connecting member.
In one embodiment, the vehicle has a first side and a second side disposed opposite along the vehicle length direction; a portion of the plurality of vibration reduction assemblies are disposed on the first side of the vehicle and another portion of the plurality of vibration reduction assemblies are disposed on the second side of the vehicle.
In one embodiment, the vibration absorbing portion of the vibration absorbing assembly located on the first side further includes a movable connecting member movably mounted between the second connecting member and the second fixing member along an axial direction of the vibration absorber body, and the movable connecting member is used for connecting the second connecting member and the second fixing member.
In one embodiment, the acquisition assembly comprises a first sensor and a second sensor, the first sensor is mounted at one end of the damper body and is used for sensing the motion state of the cab, the second sensor is mounted at the other end of the damper body and is used for sensing the motion state of the frame, and the first sensor and the second sensor are electrically connected with the control unit.
In a second aspect, the present application provides a method for controlling a vibration damping system, including the steps of:
acquiring motion state information of the vehicle, the motion state information being determined by the acquisition mechanism;
and controlling the damping of the vibration reduction mechanism to target damping based on the motion state information.
In one embodiment, the controlling the damping of the vibration reduction mechanism to the target damping based on the motion state information specifically includes:
determining a control current based on the motion state information;
the target damping is determined based on the control current.
In a third aspect, the present application provides a vehicle, which adopts the following technical scheme:
a vehicle comprises a frame, a cab and the vibration reduction system, wherein the vibration reduction assembly is connected between the frame and the cab, and the plurality of acquisition assemblies are distributed on the vehicle at intervals.
According to the vibration reduction system, the control method of the vibration reduction system and the vehicle, the motion state of the vehicle is monitored in real time through the acquisition mechanism and fed back to the control unit through the transmission unit, and the control unit controls the output control current according to the received motion state information, so that the damping of the vibration reduction mechanism is regulated and controlled in real time, the damping of the vibration reduction system can be changed in real time according to the current road condition, and the driving comfort of the vehicle is improved.
Drawings
FIG. 1 is a schematic diagram of a vibration damping system in accordance with an embodiment of the present application.
Fig. 2 is a schematic diagram of a damper body, an acquisition assembly, and a control unit according to an embodiment of the present application.
FIG. 3 is a schematic view of a front vibration damping assembly according to an embodiment of the present application.
FIG. 4 is an exploded view of a front vibration reduction assembly in accordance with an embodiment of the present application.
FIG. 5 is a schematic view of a rear vibration damping assembly according to an embodiment of the present application.
FIG. 6 is a flow chart of a method for controlling a vibration damping system according to an embodiment of the present application.
FIG. 7 is a flow chart of another embodiment of a method for controlling a vibration damping system according to an embodiment of the present application.
The drawings are marked with the following description:
1. an acquisition mechanism; 11. an acquisition component; 111. a first sensing member; 112. a second sensing member; 2. a vibration damping mechanism; 21. a vibration damping assembly; 211. a vibration damping section; 2111. a damper body; 2112. an elastic member; 2113. a first fixing member; 21131. front suspension upper bracket; 21132. rear suspension upper bracket; 2114. a second fixing member; 21141. a lower lifting lug; 21142. a front suspension lower connecting bracket; 21143. rear suspension lower connecting bracket; 2115. a first connector; 2116. a second connector; 2117. a connecting bushing; 2118. a movable connecting piece; 3. a control unit; 4. a first side; 5. a second side.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
Embodiments of the present application are described in further detail below with reference to FIGS. 1-7.
Referring to fig. 1, a vibration damping system according to an embodiment of the present application includes an acquisition mechanism 1, a vibration damping mechanism 2, and a control unit 3 mounted on a vehicle.
The acquisition mechanism 1 is used for acquiring real-time motion state information of a vehicle, the vibration reduction mechanism 2 is arranged between the cab and the frame, and the vibration reduction mechanism 2 stretches and contracts to move in the running process of the vehicle to play a role in vibration reduction. The control unit 3 is electrically connected with the acquisition mechanism 1 and the vibration reduction mechanism 2 through the transmission unit respectively, and the control unit 3 is used for adjusting the damping of the vibration reduction mechanism 2.
The control unit 3 in the embodiment of the application is a common ECU in a vehicle vibration reduction system, namely an electronic control unit 3, and the transmission unit is a CAN data bus.
Referring to fig. 1 and 2, the vibration damping mechanism 2 includes a plurality of vibration damping assemblies 21, and the vibration damping assemblies 21 are installed between the cab and the vehicle frame. The vehicle in the embodiment of the application has a first side 4 and a second side 5 which are oppositely disposed along the length direction thereof, wherein the first side 4 corresponds to the front end position of the vehicle, and the second side 5 corresponds to the rear end position of the vehicle. The vibration damping assemblies 21 are arranged in a pair, one vibration damping assembly 21 is arranged on the first side 4 of the vehicle, the other vibration damping assembly 21 is arranged on the second side 5 of the vehicle, and the vibration damping assemblies 21 can stretch and move in the running process of the vehicle to play a role in vibration damping.
Referring to fig. 1 and 2, the vibration damping assembly 21 in the embodiment of the application includes a pair of vibration damping portions 211, the pair of vibration damping portions 211 are axisymmetrically distributed with the axis direction of the vehicle as an axis, and the pair of vibration damping portions 211 are connected by a connecting cross frame, so that the pair of vibration damping portions 211 located at the same end of the vehicle can synchronously perform vibration damping operation.
Specifically, the pair of vibration damping portions 211 located on the first side 4 and the pair of vibration damping portions 211 located on the second side 5 respectively damp the vibration in four directions of the front left, the front right, the rear left and the rear right of the vehicle, thereby improving the vibration damping effect on the vehicle.
Referring to fig. 2 and 3, further, the vibration damping portion 211 includes a vibration damper body 2111 and an elastic member 2112, and the vibration damper body 2111 in the embodiment of the application is a common adjustable damping vibration damper, and the adjustable damping vibration damper can correspondingly adjust self-damping according to the magnitude of an input current. The elastic member 2112 is an air spring.
Specifically, the damper body 2111 is installed in the elastic member 2112 for guiding the elastic member 2112, so that the elastic member 2112 can always expand and contract along the extending direction of the damper body 2111, thereby improving the damping effect of the damping portion 211 on the vehicle.
In addition, compared with the traditional coil spring, the embodiment of the application uses the air spring to cooperate with the damper body 2111 to realize the damping effect, and has the advantages of high bearing capacity, large deformation and good damping and sound insulation effects.
In addition, the vibration damping portion 211 includes a first fixing member 2113, a second fixing member 2114, a first connecting member 2115 and a second connecting member 2116, as well as fig. 3 and 4.
The first and second connection members 2115 and 2116 in the embodiment of the application are screws integrally formed on the damper body 2111, and the first and second connection members 2115 and 2116 are disposed coaxially with the damper body 2111 for mounting the damper body 2111 on a vehicle.
Wherein, first mounting 2113 locates the one end that shock absorber body 2111 is close to the driver's cabin and is connected in the driver's cabin, and second mounting 2114 locates the one end that shock absorber body 2111 is close to the frame and is connected in the frame, and the one end of shock absorber body 2111 realizes being connected with first mounting 2113 through first connecting piece 2115, and the other end realizes being connected with second mounting 2114 through second connecting piece 2116 to accomplish the installation work to shock absorber body 2111.
In addition, in the embodiment of the present application, a connection bushing 2117 is further disposed between the first connection member 2115 and the first fixing member 2113, and the connection bushing 2117 is movably sleeved on the side wall of the first connection member 2115 along the extending direction of the first connection member 2115, so as to implement soft connection between the first connection member 2115 and the first fixing member 2113, thereby reducing wear between the first connection member 2115 and the first fixing member 2113 in the operation process of the vibration damping system, and prolonging the service life of the vibration damping system.
In addition, the connection bushing 2117 in the embodiment of the application adopts a stand-alone structure, even if the vibration reduction system wears the connection bushing 2117 after long-term use, the replacement of the connection bushing 2117 is more convenient than the replacement of the first connection member 2115 and the first fixing member 2113, and the replacement cost of the connection bushing 2117 is low.
Referring to fig. 1, 3, 4 and 5, in particular, the first fixing member 2113 includes a front suspension upper bracket 21131 and a rear suspension upper bracket 21132.
Wherein the front suspension upper brackets 21131 are located on a first side 4 of the vehicle and the rear suspension upper brackets 21132 are located on a second side 5 of the vehicle. The front suspension upper bracket 21131 is for connecting the cab and the first connector 2115 on the first side 4, and the rear suspension upper bracket 21132 is for connecting the cab and the first connector 2115 on the second side 5.
The second fixing member 2114 of the vibration reduction assembly 21 includes a lower lifting lug 21141, a front suspension lower attachment bracket 21142 and a rear suspension lower attachment bracket 21143.
Wherein the front suspension lower attachment brackets 21142 are located on a first side 4 of the vehicle and the rear suspension lower attachment brackets 21143 are located on a second side 5 of the vehicle, and the lower lifting lugs 21141 are attached to the second attachment members 2116. The front suspension lower attachment brackets 21142 are used to attach the frame to the lower lifting lugs 21141 on the first side 4 and the rear suspension lower attachment brackets 21143 are used to attach the frame to the lower lifting lugs 21141 on the second side 5.
Further, the lower lifting lug 21141 is connected to the second connecting piece 2116 located on the first side 4 through a movable connecting piece 2118, and the movable connecting piece 2118 in the embodiment of the application is specifically a nut. The movable connecting piece 2118 is screwed on the second connecting piece 2116 along the extending direction of the second connecting piece 2116, and a connecting hole for connecting the second connecting piece 2116 is formed in the lower lifting lug 21141 corresponding to the second connecting piece 2116.
In actual installation, the movable connector 2118 is screwed or unscrewed to complete the installation or removal of the damper body 2111 on the first side 4. In the embodiment of the application, when the damper body 2111 at the first side 4 needs to be replaced, the lifting lug 21141 does not need to be detached, and only the movable connecting piece 2118 needs to be unscrewed, so that an operator can complete the replacement work at the front periphery of the cab, and the operation space is enough, so that the operator can replace the damper body 2111 more conveniently.
The vibration damping assembly 21 on the second side 5 is different from the vibration damping assembly 21 on the first side 4 in that a fixed structure is arranged between the lower lifting lug 21141 of the vibration damping assembly 21 on the second side 5 and the second connecting piece 2116, so that the effect of enhancing the overall structural strength of the vehicle is achieved.
Referring to fig. 1, 3 and 5, the acquiring assemblies 11 in the embodiment of the present application are arranged in four groups, and the four groups of acquiring assemblies 11 are arranged in a one-to-one correspondence with the four vibration reduction portions 211 in the foregoing, so as to perform omnibearing detection on the motion state of the vehicle, so as to improve the accuracy of the detected motion state information of the vehicle.
Specifically, the acquisition assembly 11 includes a first sensor 111 bolted to the front suspension upper bracket 21131 or the rear suspension upper bracket 21132, and a second sensor 112 bolted to the front suspension lower connection bracket 21142 or the rear suspension lower connection bracket 21143.
The first sensor 111 in the embodiment of the present application is a cab acceleration sensor, and the second sensor 112 is a frame acceleration sensor. The first sensor 111 is used for sensing a real-time motion state of the cab, the second sensor 112 is used for sensing a real-time motion state of the frame, and the first sensor 111 and the second sensor 112 are matched for use, so that accuracy of sensing the real-time motion state of the whole vehicle can be improved.
In addition, the acquiring assembly 11 further includes a height valve (not shown) integrated in the elastic member 2112, where the height valve is used to detect the height of the elastic member 2112, and in the embodiment of the present application, the height valve is integrated in the elastic member 2112, so as to facilitate the accuracy of the height change data of the elastic member 2112 detected by the height valve, thereby improving the accuracy of the vehicle motion state information acquired by the acquiring assembly 11.
Further, the height valve, the elastic member 2112 and the damper body 2111 are integrated together, so that the overall volume of the damper portion 211 is reduced, the requirement for installation space when the damper portion 211 is installed is reduced, and meanwhile, the number of parts required to be installed is reduced, so that the assembly is convenient.
Referring to fig. 1 to 7, the embodiment of the present application further provides a method for controlling a vibration damping system, where the method for controlling a vibration damping system is applied to a vibration damping process of a vibration damping system according to any one of the above-mentioned technical solutions, and includes the following steps:
s110, acquiring motion state information of a vehicle, wherein the motion state information is determined by an acquisition mechanism 1;
and S120, controlling the damping of the vibration reduction mechanism 2 to target damping based on the motion state information.
In step S110, the first sensor 111 of the mechanism 1 is installed at a position close to the cab and monitors the movement state information of the cab in real time, the second sensor 112 is installed at a position close to the frame and monitors the movement state information of the frame in real time, and then the movement state information of the vehicle is generated by integrating the movement state information detected by each of the first sensor 111 and the second sensor 112. The movement state information of the vehicle is related to a specific road condition.
In step S120, the target damping refers to damping that the vibration reduction system of the vehicle needs to be equipped with based on the current road condition, and the vibration reduction effect of the vibration reduction system on the vehicle is improved under the condition that the self damping of the vibration reduction system reaches the target damping. The control unit 3 controls the vibration damping mechanism 2 based on the received movement state information so that the damping of the vibration damping mechanism 2 is adjusted to the target damping to adapt to the current road conditions.
In another embodiment, as shown in fig. 7, the step S120 specifically includes the following steps:
s121, determining a control current based on the motion state information;
s122, determining target damping based on the control current.
In step S121, the control unit 3 receives the movement state information of the vehicle generated by the acquisition mechanism 1 via the transmission unit (CAN bus), and then analyzes and calculates the magnitude of the control current to be currently outputted to control the vibration damping mechanism 2 based on the movement state information.
In step S122, the damper mechanism 2 calculates the amount of damping that the damper mechanism 2 of the vehicle should have in the current motion state based on the control current analysis, sets the amount of damping as the target damping, and adjusts the self-damping to the target damping.
According to the embodiment of the application, the damping of the shock absorber body 2111 is changed by changing the magnitude of the control current output by the control unit 3, so that road surface self-adaption and driving self-adaption can be realized, the damping of the shock absorbing system can be adjusted in real time according to road conditions in the driving process of the vehicle, the shock absorbing performance of the shock absorbing system is improved, the vibration of a driver in the driving process is reduced, and the driving comfort of the vehicle is further improved.
The embodiment of the application also provides a vehicle (not shown), which comprises a frame (not shown), a cab (not shown) and the vibration damping system, wherein the vibration damping system is arranged between the frame and the cab and is connected with the frame and the cab.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (11)
1. A vibration damping system, comprising:
the acquisition mechanism comprises a plurality of acquisition components, wherein the acquisition components are used for being distributed on a vehicle at intervals, and the acquisition components are used for acquiring motion state information of the vehicle;
the vibration reduction mechanism comprises a plurality of vibration reduction assemblies which are used for being distributed on the vehicle at intervals, the vibration reduction assemblies are used for being connected between a frame of the vehicle and a cab of the vehicle, and the vibration reduction assemblies are configured to be capable of extending and retracting between the frame and the cab; a kind of electronic device with high-pressure air-conditioning system
The control unit is electrically connected with the plurality of acquisition assemblies and the plurality of vibration reduction assemblies respectively; the control unit is used for controlling the damping size of the vibration reduction mechanism according to the motion state information acquired by the acquisition component.
2. The vibration damping system according to claim 1, wherein the vibration damping assembly comprises at least one vibration damping portion;
the vibration reduction part comprises an elastic piece and a vibration reduction device body, wherein the elastic piece is positioned between the frame and the cab, the vibration reduction device body is arranged in the elastic piece, one end of the vibration reduction device body extends out of the elastic piece and is connected with the frame, and the other end of the vibration reduction device body extends out of the elastic piece and is connected with the cab.
3. The vibration reduction system according to claim 2, wherein the vibration reduction portion further comprises a first fixing member, a second fixing member, a first connecting member, and a second connecting member, the damper body being provided between the first connecting member and the second connecting member, the first connecting member, the second connecting member, and the damper body being provided between the first fixing member and the second fixing member;
the first fixing piece is arranged at one end of the shock absorber body and connected with the cab, and the second fixing piece is arranged at the other end of the shock absorber body and connected with the frame;
one end of the damper body is connected to the first fixing piece by means of the first connecting piece, and the other end of the damper body is connected to the second fixing piece by means of the second connecting piece.
4. A vibration damping system according to claim 3, wherein the central axes of the first, second and damper bodies coincide with each other.
5. The vibration reduction system according to claim 3, wherein the vibration reduction portion further comprises a connecting bushing provided between the vibration reduction body and the first fixing member, the connecting bushing being sleeved on a side wall of the first connecting member.
6. The vibration reduction system according to any one of claims 2-5, wherein the vehicle has a first side and a second side disposed opposite each other along the vehicle length direction;
a portion of the plurality of vibration reduction assemblies are disposed on the first side of the vehicle and another portion of the plurality of vibration reduction assemblies are disposed on the second side of the vehicle.
7. The vibration reduction system according to claim 6, wherein the vibration reduction portion of the vibration reduction assembly on the first side further comprises a movable connecting member movably mounted between the second connecting member and the second fixing member in the axial direction of the vibration reduction body, the movable connecting member being for connecting the second connecting member and the second fixing member.
8. The vibration reduction system according to any one of claims 2-5, wherein the acquisition assembly comprises a first sensor member mounted at one end of the vibration reduction body for sensing a movement state of the cab, and a second sensor member mounted at the other end of the vibration reduction body for sensing a movement state of the frame, both of the first sensor member and the second sensor member being electrically connected to the control unit.
9. A control method of a vibration damping system for controlling a vibration damping system according to any one of claims 1 to 5, characterized in that the control method of a vibration damping system comprises:
acquiring motion state information of the vehicle, the motion state information being determined by the acquisition mechanism;
and controlling the damping of the vibration reduction mechanism to target damping based on the motion state information.
10. The control method of the vibration damping system according to claim 9, characterized in that the controlling damping of the vibration damping mechanism to a target damping based on the motion state information specifically includes:
determining a control current based on the motion state information;
the target damping is determined based on the control current.
11. A vehicle comprising a frame, a cab and a vibration damping system according to any one of claims 1-5;
the vibration reduction assembly is connected between the frame and the cab, and the plurality of acquisition assemblies are distributed on the vehicle at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310803990.1A CN116691856A (en) | 2023-07-03 | 2023-07-03 | Vibration damping system, control method of vibration damping system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310803990.1A CN116691856A (en) | 2023-07-03 | 2023-07-03 | Vibration damping system, control method of vibration damping system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116691856A true CN116691856A (en) | 2023-09-05 |
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ID=87827604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310803990.1A Pending CN116691856A (en) | 2023-07-03 | 2023-07-03 | Vibration damping system, control method of vibration damping system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116691856A (en) |
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2023
- 2023-07-03 CN CN202310803990.1A patent/CN116691856A/en active Pending
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