CN113446347B - Hydraulic suspension of automobile engine - Google Patents
Hydraulic suspension of automobile engine Download PDFInfo
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- CN113446347B CN113446347B CN202110750616.0A CN202110750616A CN113446347B CN 113446347 B CN113446347 B CN 113446347B CN 202110750616 A CN202110750616 A CN 202110750616A CN 113446347 B CN113446347 B CN 113446347B
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- 239000000725 suspension Substances 0.000 title description 2
- 230000009467 reduction Effects 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 2
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1208—Resilient supports
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
- F16F13/266—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions comprising means for acting dynamically on the walls bounding a passage between working and equilibration chambers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
本发明公开了一种汽车发动机液压悬置，包括外壳和橡胶主簧，外壳内固定有惯性通道体，惯性通道体内设有解耦通道、惯性通道，解耦通道内设有解耦盘，解耦通道上、下部分别通过连通口与外壳连通，外壳与橡胶主簧连接处设置有振幅检测单元，连通口与解耦通道内连通处外环绕固定有环形电磁铁，解耦盘对应环形电磁铁位置嵌入固定有磁吸体，所振幅检测单元、环形电磁铁分别与控制系统电连接。本发明能够提高液压悬置在高幅和低幅振动时的阻尼减振效果。
The invention discloses a hydraulic mount for automobile engine, comprising a shell and a rubber main spring, an inertia channel body is fixed in the shell, a decoupling channel and an inertia channel are arranged in the inertia channel body, a decoupling disc is arranged in the decoupling channel, the upper and lower parts of the decoupling channel are respectively connected with the shell through a connecting port, an amplitude detection unit is arranged at the connection between the shell and the rubber main spring, an annular electromagnet is fixed around the connecting port and the inner connection of the decoupling channel, a magnetic body is embedded and fixed at the position of the decoupling disc corresponding to the annular electromagnet, and the amplitude detection unit and the annular electromagnet are respectively electrically connected with the control system. The invention can improve the damping and vibration reduction effect of the hydraulic mount during high-amplitude and low-amplitude vibration.
Description
技术领域Technical Field
本发明涉及液压悬置领域，具体是一种汽车发动机液压悬置。The invention relates to the field of hydraulic mounts, in particular to a hydraulic mount for an automobile engine.
背景技术Background technique
液压悬置用于发动机减振，其一般包括外壳、橡胶主簧、惯性通道体、底模等，橡胶主簧固定于外壳上部，并且橡胶主簧与发动机连接，外壳内部充入有液压介质，惯性通道体固定于外壳内部，由惯性通道体将外壳内部隔分为上下两部分，惯性通道体中间位置设有解耦通道，解耦通道上、下部分别各自通过连通口对应与外壳内上、下部分连通，解耦通道内设有解耦盘，解耦盘呈水平并上下分割解耦通道，解耦盘边沿与解耦通道内壁之间有空隙，惯性通道体中还设有惯性通道，惯性通道分别与外壳内上、下两部分连通。The hydraulic mount is used for engine vibration reduction, which generally includes an outer shell, a rubber main spring, an inertia channel body, a bottom mold, etc. The rubber main spring is fixed to the upper part of the outer shell, and the rubber main spring is connected to the engine. The inner part of the outer shell is filled with hydraulic medium. The inertia channel body is fixed to the inner part of the outer shell, and the inner part of the outer shell is divided into an upper and a lower part by the inertia channel body. A decoupling channel is provided in the middle position of the inertia channel body. The upper and lower parts of the decoupling channel are respectively connected to the upper and lower parts of the inner shell through connecting ports. A decoupling disk is provided in the decoupling channel. The decoupling disk is horizontal and divides the decoupling channel up and down. There is a gap between the edge of the decoupling disk and the inner wall of the decoupling channel. An inertia channel is also provided in the inertia channel body, and the inertia channel is respectively connected to the upper and lower parts of the inner shell.
现有技术液压悬置工作过程为：当发动机产生低幅或高幅振动，橡胶主簧和惯性通道体之间的外壳内上部分空间体积被压缩或拉伸，由此外壳内上部分液压压力随体积变化增大或减小。在低幅振动时，惯性通道自锁（低幅振动下惯性通道的阻碍作用大于进入惯性通道的液压，相当于惯性通道自锁），液压介质主要从解耦通道内壁与解耦盘边沿之间空隙流动；当外壳内上部分空间压缩从而液压压力增大时，外壳内上部分被压缩体积对应的液压介质进入解耦通道，并通过解耦通道进入外壳内下部分，同时使解耦盘向下运动。外壳内上部分空间拉伸从而液压压力减小时，外壳内下部分液压介质进入解耦通道，并通过解耦通道进入外壳内上部分以填补外壳内上部分被拉伸体积，同时使解耦盘向上运动。利用解耦盘的上下运动使外壳内上、下部分的液体压力迅速趋于平衡，由此实现阻尼减振功能。The working process of the hydraulic mount in the prior art is as follows: when the engine generates low-amplitude or high-amplitude vibration, the volume of the upper space in the housing between the rubber main spring and the inertia channel body is compressed or stretched, thereby increasing or decreasing the hydraulic pressure in the upper part of the housing with the volume change. During low-amplitude vibration, the inertia channel is self-locking (the blocking effect of the inertia channel under low-amplitude vibration is greater than the hydraulic pressure entering the inertia channel, which is equivalent to the self-locking of the inertia channel), and the hydraulic medium mainly flows from the gap between the inner wall of the decoupling channel and the edge of the decoupling disk; when the space in the upper part of the housing is compressed and the hydraulic pressure increases, the hydraulic medium corresponding to the compressed volume of the upper part of the housing enters the decoupling channel, and enters the lower part of the housing through the decoupling channel, while causing the decoupling disk to move downward. When the space in the upper part of the housing is stretched and the hydraulic pressure decreases, the hydraulic medium in the lower part of the housing enters the decoupling channel, and enters the upper part of the housing through the decoupling channel to fill the stretched volume of the upper part of the housing, while causing the decoupling disk to move upward. The up and down movement of the decoupling disk is used to quickly balance the liquid pressure in the upper and lower parts of the housing, thereby realizing the damping and vibration reduction function.
当高幅振动时，解耦盘的上下运动均能达到极限位置，即解耦盘向上运动至上极限位置时堵住解耦通道上部连通口，解耦盘向下运动至下极限位置时堵住解耦通道下部连通口，当连通口被堵住时，相当于解耦通道封闭，液压介质只能在液压作用下通过惯性通道流动于外壳内上、下部分，通过惯性通道对流动介质的阻碍作用，实现阻尼减振功能。When high-amplitude vibration occurs, the up and down movement of the decoupling disk can reach the limit position, that is, when the decoupling disk moves upward to the upper limit position, it blocks the upper connecting port of the decoupling channel, and when the decoupling disk moves downward to the lower limit position, it blocks the lower connecting port of the decoupling channel. When the connecting port is blocked, it is equivalent to the decoupling channel being closed, and the hydraulic medium can only flow through the inertial channel in the upper and lower parts of the outer shell under the action of hydraulic pressure. The damping and vibration reduction function is achieved through the obstruction of the inertial channel to the flowing medium.
从现有技术液压悬置工作过程可以看出，在高幅振动时，虽然解耦盘能够运动至极限位置使解耦通道封闭，从而使流动介质从惯性通道通过，但无法在极限位置保持固定，因此在高幅振动时不完全由惯性通道配合流动介质起到阻尼减振作用。并且，在低幅振动时，解耦盘的上下运动是适应于外壳内上、下部分液压变化的，无法主动调节解耦盘的上下运动。It can be seen from the working process of the hydraulic mount in the prior art that, during high-amplitude vibration, although the decoupling disc can move to the extreme position to close the decoupling channel, so that the flowing medium passes through the inertia channel, it cannot remain fixed at the extreme position. Therefore, during high-amplitude vibration, the inertia channel is not completely coordinated with the flowing medium to play a damping and vibration reduction role. In addition, during low-amplitude vibration, the up and down movement of the decoupling disc is adapted to the hydraulic changes in the upper and lower parts of the housing, and the up and down movement of the decoupling disc cannot be actively adjusted.
发明内容Summary of the invention
本发明的目的是提供一种汽车发动机液压悬置，以解决现有技术液压悬置存在的高幅振动时解耦盘无法固定、低幅振动时解耦盘运动无法主动调节的问题。The purpose of the present invention is to provide a hydraulic mount for an automobile engine to solve the problems of the prior art hydraulic mount that a decoupling plate cannot be fixed during high-amplitude vibration and the movement of the decoupling plate cannot be actively adjusted during low-amplitude vibration.
为了达到上述目的，本发明所采用的技术方案为：In order to achieve the above object, the technical solution adopted by the present invention is:
一种汽车发动机液压悬置，包括外壳和外壳上部连接的橡胶主簧，外壳内充入有液压介质，外壳内固定有惯性通道体，由惯性通道体将外壳内部隔分为上、下两部分，所述惯性通道体内设有解耦通道，解耦通道内设有解耦盘，解耦通道上、下部分别通过连通口对应与外壳内上、下部分连通，惯性通道体内还设有连通外壳内上、下两部分的惯性通道，其特征在于：所述外壳与橡胶主簧连接处设置有振幅检测单元，所述连通口与解耦通道内连通处外环绕固定有环形电磁铁，环形电磁铁的一个磁极面朝向所述解耦盘，所述解耦盘对应环形电磁铁位置嵌入固定有磁吸体，所述振幅检测单元、环形电磁铁分别与外壳外的控制系统电连接；A hydraulic mount for an automobile engine comprises a shell and a rubber main spring connected to the upper part of the shell, the shell is filled with a hydraulic medium, an inertia channel body is fixed in the shell, the inside of the shell is divided into an upper part and a lower part by the inertia channel body, a decoupling channel is arranged in the inertia channel body, a decoupling plate is arranged in the decoupling channel, the upper and lower parts of the decoupling channel are respectively connected with the upper and lower parts in the shell through a connecting port, and an inertia channel connecting the upper and lower parts in the shell is also arranged in the inertia channel body, characterized in that: an amplitude detection unit is arranged at the connection between the shell and the rubber main spring, an annular electromagnet is fixed around the outside of the connection between the connecting port and the decoupling channel, one magnetic pole of the annular electromagnet faces the decoupling plate, a magnetic body is embedded and fixed in the decoupling plate corresponding to the position of the annular electromagnet, and the amplitude detection unit and the annular electromagnet are respectively electrically connected to the control system outside the shell;
所述控制系统包括控制器、可控电源、可控开关，所述可控电源通过可控开关与环形电磁铁供电连接，所述振幅检测单元与控制器信号传递连接，控制器分别与可控电源、可控开关控制连接；The control system includes a controller, a controllable power supply, and a controllable switch. The controllable power supply is connected to the annular electromagnet for power supply through the controllable switch. The amplitude detection unit is connected to the controller for signal transmission. The controller is respectively connected to the controllable power supply and the controllable switch for control.
所述控制器内部设置有第一振幅阈值、第二振幅阈值，其中第二振幅阈值小于第一振幅阈值；所述控制器将振幅检测单元采集的数据分别与第一振幅阈值、第二振幅阈值比较，其中：The controller is internally provided with a first amplitude threshold and a second amplitude threshold, wherein the second amplitude threshold is smaller than the first amplitude threshold; the controller compares the data collected by the amplitude detection unit with the first amplitude threshold and the second amplitude threshold respectively, wherein:
若采集的数据小于或等于第二振幅阈值，此时控制器控制可控开关断开，使环形电磁铁不产生磁吸力；If the collected data is less than or equal to the second amplitude threshold, the controller controls the controllable switch to be disconnected, so that the annular electromagnet does not generate magnetic attraction;
若采集的数据小于第一振幅阈值且大于第二振幅阈值，此时控制器控制可控开关导通，同时控制可控电源输出变化的电压或电流，使环形电磁铁产生变化的磁吸力施加于所述解耦盘；If the collected data is less than the first amplitude threshold and greater than the second amplitude threshold, the controller controls the controllable switch to be turned on, and controls the controllable power supply to output a variable voltage or current, so that the annular electromagnet generates a variable magnetic attraction force applied to the decoupling disk;
若采集的数据大于或等于第一振幅阈值，此时控制器控制可控开关导通，同时控制可控电源输出固定不变的电压或电流，使环形电磁铁产生不变的磁吸力吸附固定所述解耦盘。If the collected data is greater than or equal to the first amplitude threshold, the controller controls the controllable switch to be turned on, and controls the controllable power supply to output a fixed voltage or current, so that the annular electromagnet generates a constant magnetic attraction to adsorb and fix the decoupling disk.
进一步的，所述环形电磁铁设置于上部连通口与解耦通道连通处外，环形电磁铁一个磁极面向下朝向所述解耦盘。Furthermore, the annular electromagnet is arranged outside the connection point between the upper connecting port and the decoupling channel, and one magnetic pole of the annular electromagnet faces downward toward the decoupling disk.
进一步的，所述环形电磁铁设置于下部连通口与解耦通道连通处外，环形电磁铁一个磁极面向上朝向所述解耦盘。Furthermore, the annular electromagnet is arranged outside the connection point between the lower connecting port and the decoupling channel, and one magnetic pole of the annular electromagnet faces upward toward the decoupling disk.
进一步的，所述解耦通道中，上、下部连通口各自与解耦通道连通处外分别环绕固定有环形电磁铁。Furthermore, in the decoupling channel, an annular electromagnet is fixed around and around the outer side of the upper and lower communication ports and the connection points with the decoupling channel respectively.
进一步的，所述解耦通道内上、下部之间固定有导柱，所述解耦盘通过导向孔滑动装配于导柱。Furthermore, a guide column is fixed between the upper and lower parts in the decoupling channel, and the decoupling plate is slidably assembled on the guide column through a guide hole.
本发明解耦通道中，连通口与解耦通道连通处外环绕固定有电磁铁，解耦盘固定磁吸体，电磁铁在通电状态下产生能够作用于解耦盘的磁吸力，通过磁吸力能够干涉解耦盘的运动状态。In the decoupling channel of the present invention, an electromagnet is fixed around the outside of the connection point between the connecting port and the decoupling channel, and the decoupling disk is fixed with a magnetic body. The electromagnet generates a magnetic attraction force that can act on the decoupling disk when powered on, and the movement state of the decoupling disk can be interfered with by the magnetic attraction force.
其中，在高幅振动下，可使电磁铁产生足够的不变的磁吸力吸附固定解耦盘，从而令解耦盘堵住对应连通口，使解耦通道封闭，由此在高幅振动下，液压介质无法通过解耦通道，只能通过惯性通道流通于外壳内上、下部分。通过上述方式，可提高高幅振动时的阻尼减振效果。Among them, under high-amplitude vibration, the electromagnet can generate enough constant magnetic attraction to adsorb and fix the decoupling disc, so that the decoupling disc blocks the corresponding connecting port and closes the decoupling channel. Therefore, under high-amplitude vibration, the hydraulic medium cannot pass through the decoupling channel and can only flow through the inertia channel to the upper and lower parts of the shell. In this way, the damping and vibration reduction effect under high-amplitude vibration can be improved.
在低幅振动下，可使电磁铁产生合适的变化的磁吸力，使解耦盘处于额外受力状态下，通过磁吸力向解耦盘施加额外的上下运动状态，与解耦盘本身受液体压力时适应产生的上下运动状态叠加，由此可形成对解耦盘的主动干涉，在此干涉下能够促进解耦盘的运动，使外壳内上、下部分液压迅速平衡，从而提高了阻尼减振效果。Under low-amplitude vibration, the electromagnet can generate a suitable changing magnetic attraction force, so that the decoupling disk is in an additional force state, and an additional up and down motion state is applied to the decoupling disk through the magnetic attraction force. This is superimposed on the up and down motion state generated by the decoupling disk itself when it is subjected to liquid pressure, thereby forming active interference with the decoupling disk. Under this interference, the movement of the decoupling disk can be promoted, and the hydraulic pressure in the upper and lower parts of the shell can be quickly balanced, thereby improving the damping and vibration reduction effect.
与现有技术相比，本发明的优点为：本发明通过产生电磁力的方式施加于解耦盘，能够干涉解耦盘的运动状态，从而提高液压悬置在高幅和低幅振动时的阻尼减振效果。Compared with the prior art, the advantages of the present invention are as follows: the present invention generates electromagnetic force and applies it to the decoupling disk, which can interfere with the motion state of the decoupling disk, thereby improving the damping and vibration reduction effect of the hydraulic suspension during high-amplitude and low-amplitude vibrations.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本发明结构示意图。FIG1 is a schematic diagram of the structure of the present invention.
图2是本发明控制系统原理框图。FIG. 2 is a functional block diagram of the control system of the present invention.
实施方式Implementation
下面结合附图和实施例对本发明进一步说明。The present invention is further described below in conjunction with the accompanying drawings and embodiments.
如图1所示，一种汽车发动机液压悬置，包括外壳1，外壳1上部连接有橡胶主簧2。其中，外壳1内壁对应橡胶主簧2底部位置设有沿台3，沿台3顶面嵌入安装有压电陶瓷片4，橡胶主簧2底部对应位置固定于沿台3的压电陶瓷片4所在位置。当发生振动时，外壳1的沿台3同样挤压或拉伸橡胶主簧2，使压电陶瓷片4产生相应电信号，该电信号大小与振幅有关，通过压电陶瓷片4产生的电信号能够获知振幅大小。由此，压电陶瓷片4起到振幅检测单元的功能。As shown in FIG1 , a hydraulic mount for an automobile engine includes a housing 1, and a rubber main spring 2 is connected to the upper part of the housing 1. A platform 3 is provided on the inner wall of the housing 1 corresponding to the bottom position of the rubber main spring 2, and a piezoelectric ceramic sheet 4 is embedded and installed on the top surface of the platform 3. The corresponding position of the bottom of the rubber main spring 2 is fixed to the position of the piezoelectric ceramic sheet 4 of the platform 3. When vibration occurs, the platform 3 of the housing 1 also squeezes or stretches the rubber main spring 2, so that the piezoelectric ceramic sheet 4 generates a corresponding electrical signal, the size of which is related to the amplitude, and the amplitude can be known through the electrical signal generated by the piezoelectric ceramic sheet 4. Therefore, the piezoelectric ceramic sheet 4 functions as an amplitude detection unit.
外壳1内充入有液压油，外壳1内固定有惯性通道体5，由惯性通道体5将外壳1内部隔分为上、下两部分，外壳1内位于惯性通道体5下方位置固定有封住外壳1内底部的底膜6。惯性通道体5中设有惯性通道14，惯性通道14连通外壳1内上、下部分。The housing 1 is filled with hydraulic oil, and an inertia channel body 5 is fixed in the housing 1. The inertia channel body 5 divides the interior of the housing 1 into an upper part and a lower part. A bottom film 6 is fixed in the housing 1 below the inertia channel body 5 to seal the bottom of the housing 1. An inertia channel 14 is provided in the inertia channel body 5, and the inertia channel 14 connects the upper and lower parts of the housing 1.
惯性通道体5中间位置设有解耦通道7，解耦通道7顶部设有上连通口8.1用于与外壳内上部连通，解耦通道7底部设有下连通口8.2用于与外壳内下部连通，上连通口8.1、下连通口8.2分别各自由多个通孔构成。解耦通道7内部设置有解耦盘9，该解耦盘9呈水平，并且解耦盘9的边沿与解耦通道7内壁之间有空隙。由此，液压油能够通过上、下连通口8.1、8.2以及解耦盘9和解耦通道7之间空隙，在外壳1内上、下部分之间流动。A decoupling channel 7 is provided in the middle of the inertial channel body 5. An upper communication port 8.1 is provided at the top of the decoupling channel 7 for communicating with the upper part of the housing, and a lower communication port 8.2 is provided at the bottom of the decoupling channel 7 for communicating with the lower part of the housing. The upper communication port 8.1 and the lower communication port 8.2 are respectively formed by a plurality of through holes. A decoupling plate 9 is provided inside the decoupling channel 7. The decoupling plate 9 is horizontal, and there is a gap between the edge of the decoupling plate 9 and the inner wall of the decoupling channel 7. Thus, the hydraulic oil can flow between the upper and lower parts of the housing 1 through the upper and lower communication ports 8.1 and 8.2 and the gap between the decoupling plate 9 and the decoupling channel 7.
解耦通道7中，位于整体连通口与解耦通道连通处外环绕固定有环形电磁铁10，该环形电磁铁10的内环环绕包围于对应连通口连通处外，该环形电磁铁10的一个磁极面朝向解耦盘9。解耦盘9中对应于环形电磁铁10的圆周上设有多个通孔，每个通孔中分别嵌入固定有磁吸体11。当环形电磁铁10通电产生磁吸力时，能够磁吸各个磁吸体11，从而磁吸整个解耦盘9。In the decoupling channel 7, an annular electromagnet 10 is fixed around the outside of the connection between the integral communication port and the decoupling channel, and the inner ring of the annular electromagnet 10 surrounds the outside of the corresponding connection port, and one magnetic pole face of the annular electromagnet 10 faces the decoupling disk 9. A plurality of through holes are provided on the circumference of the decoupling disk 9 corresponding to the annular electromagnet 10, and a magnetic body 11 is respectively embedded and fixed in each through hole. When the annular electromagnet 10 is energized to generate magnetic attraction, each magnetic body 11 can be magnetically attracted, thereby magnetically attracting the entire decoupling disk 9.
本发明中，该环形电磁铁10可以仅环绕固定于上连通口8.1与解耦通道连通处外，也可以仅环绕固定于下连通口8.2与解耦通道连通处外。本发明还可以是两个环形电磁铁，分别环绕固定于上连通口8.1与解耦通道连通处外、下连通口8.2与解耦通道连通处外。无论环形电磁铁10是一个还是两个、位置在哪，只需确保能够磁吸解耦盘9的各个磁吸体11即可。In the present invention, the annular electromagnet 10 can be fixed only around the outside of the connection between the upper connecting port 8.1 and the decoupling channel, or can be fixed only around the outside of the connection between the lower connecting port 8.2 and the decoupling channel. The present invention can also be two annular electromagnets, which are respectively fixed around the outside of the connection between the upper connecting port 8.1 and the decoupling channel, and the outside of the connection between the lower connecting port 8.2 and the decoupling channel. Regardless of whether there are one or two annular electromagnets 10 and where they are located, it is only necessary to ensure that each magnetic body 11 of the decoupling disk 9 can be magnetically attracted.
本发明中，为了确保解耦盘9上下运动稳定，在解耦通道7内顶部、底部中间位置之间固定有一个导柱12，解耦盘9通过中心导向通孔滑动安装于导柱12。为了确保解耦盘9无法自转，导柱12的截面可设计为非圆形，解耦盘9的中心导向通孔设计为匹配的形状即可。In the present invention, in order to ensure that the decoupling disc 9 moves stably up and down, a guide post 12 is fixed between the top and bottom middle positions in the decoupling channel 7, and the decoupling disc 9 is slidably mounted on the guide post 12 through the central guide through hole. In order to ensure that the decoupling disc 9 cannot rotate, the cross section of the guide post 12 can be designed to be non-circular, and the central guide through hole of the decoupling disc 9 can be designed to be a matching shape.
本发明还包括控制系统13，如图2所示，该控制系统包括控制器、可控电源、可控开关。其中：The present invention further includes a control system 13, as shown in FIG2 , which includes a controller, a controllable power supply, and a controllable switch.
控制器可采用汽车自身的控制器ECU，本发明中环形电磁铁10采用直流电磁铁，因此可控电源采用可控直流电源，可控开关采用高频开关。The controller may be the automobile's own controller ECU. In the present invention, the annular electromagnet 10 is a DC electromagnet, so the controllable power supply is a controllable DC power supply, and the controllable switch is a high-frequency switch.
可控开关的数量与环形电磁铁10对应，可控电源的输出端通过可控开关一一对应供电连接至环形电磁铁10。控制器的信号输入端与压电陶瓷片4连接，由控制器接收压电陶瓷片4产生的电信号。控制器的信号输出端分别与可控电源的控制端、可控开关的控制端连接，由控制器控制可控电源、可控开关工作。The number of controllable switches corresponds to the annular electromagnet 10, and the output end of the controllable power supply is connected to the annular electromagnet 10 through the controllable switches. The signal input end of the controller is connected to the piezoelectric ceramic sheet 4, and the controller receives the electrical signal generated by the piezoelectric ceramic sheet 4. The signal output end of the controller is respectively connected to the control end of the controllable power supply and the control end of the controllable switch, and the controller controls the controllable power supply and the controllable switch to work.
本发明中，控制器内部通过程序设置第一振幅阈值和小于第一振幅阈值的第二振幅阈值。当控制器接收压电陶瓷片4产生的电信号时，将其转换为振幅值，并将振幅值分别与第一振幅阈值、第二振幅阈值比较。In the present invention, a first amplitude threshold and a second amplitude threshold smaller than the first amplitude threshold are set by a program inside the controller. When the controller receives the electrical signal generated by the piezoelectric ceramic sheet 4, it converts it into an amplitude value and compares the amplitude value with the first amplitude threshold and the second amplitude threshold respectively.
若采集的振幅值小于或等于第二振幅阈值，表明此时液压悬置处于低幅振动状态，并且振幅较小，液压悬置完全可以依靠解耦盘9适应性上下运动来实现阻尼减振。此时控制器控制可控开关断开，使环形电磁铁10不产生磁吸力，由此按照传统液压悬置的工作原理，仅依靠解耦盘9的适应性上下运动实现阻尼减振。If the collected amplitude value is less than or equal to the second amplitude threshold, it indicates that the hydraulic mount is in a low-amplitude vibration state and the amplitude is small, and the hydraulic mount can completely rely on the adaptive up and down movement of the decoupling plate 9 to achieve damping vibration reduction. At this time, the controller controls the controllable switch to be disconnected, so that the annular electromagnet 10 does not generate magnetic attraction. Therefore, according to the working principle of the traditional hydraulic mount, damping vibration reduction is achieved only by the adaptive up and down movement of the decoupling plate 9.
若采集的振幅值小于第一振幅阈值且大于第二振幅阈值，表明此时液压悬置虽处于低幅振动状态，但振幅在增大。此时控制器控制可控开关导通，同时控制可控电源输出变化的电压或电流，使环形电磁铁10产生变化的磁吸力施加于解耦盘9，进而干涉解耦盘9的上下运动，从而实现对解耦盘9上下运动的主动调节，以提高阻尼减振能力。If the collected amplitude value is less than the first amplitude threshold and greater than the second amplitude threshold, it indicates that the hydraulic mount is in a low-amplitude vibration state, but the amplitude is increasing. At this time, the controller controls the controllable switch to be turned on, and at the same time controls the controllable power supply to output a variable voltage or current, so that the annular electromagnet 10 generates a variable magnetic attraction force applied to the decoupling disk 9, thereby interfering with the up and down movement of the decoupling disk 9, thereby realizing active adjustment of the up and down movement of the decoupling disk 9 to improve the damping vibration reduction capability.
若采集的振幅值大于或等于第一振幅阈值，表明此时液压悬置处于高幅振动状态。此时控制器控制可控开关导通，同时控制可控电源输出固定不变的较大的电压或电流，使环形电磁铁10产生不变的较大磁吸力，该磁吸力应当大于理论上高幅振动时外壳1内上、下部分液压之差的最大值，当解耦盘9运动至环形电磁铁10位置时，由环形电磁铁10吸附固定解耦盘9，从而使解耦通道7封闭，液压油只能通过惯性通道14流动，由此提高阻尼减振能力。If the collected amplitude value is greater than or equal to the first amplitude threshold, it indicates that the hydraulic mount is in a high-amplitude vibration state. At this time, the controller controls the controllable switch to be turned on, and at the same time controls the controllable power supply to output a fixed and large voltage or current, so that the annular electromagnet 10 generates a constant and large magnetic attraction force, which should be greater than the maximum value of the difference between the upper and lower parts of the hydraulic pressure in the housing 1 during high-amplitude vibration in theory. When the decoupling disk 9 moves to the position of the annular electromagnet 10, the annular electromagnet 10 absorbs and fixes the decoupling disk 9, so that the decoupling channel 7 is closed, and the hydraulic oil can only flow through the inertial channel 14, thereby improving the damping and vibration reduction capacity.
本发明所述的实施例仅仅是对本发明的优选实施方式进行的描述，并非对本发明构思和范围进行限定，在不脱离本发明设计思想的前提下，本领域中工程技术人员对本发明的技术方案作出的各种变型和改进，均应落入本发明的保护范围，本发明请求保护的技术内容，已经全部记载在权利要求书中。The embodiments described in the present invention are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have all been recorded in the claims.
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