TWI719712B - Damping control device - Google Patents

Damping control device Download PDF

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TWI719712B
TWI719712B TW108141217A TW108141217A TWI719712B TW I719712 B TWI719712 B TW I719712B TW 108141217 A TW108141217 A TW 108141217A TW 108141217 A TW108141217 A TW 108141217A TW I719712 B TWI719712 B TW I719712B
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seat
axial direction
control unit
hydraulic oil
housing
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TW108141217A
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TW202118950A (en
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楊純賓
許偉倫
楊朝欽
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財團法人金屬工業研究發展中心
開發工業股份有限公司
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Abstract

A damping control device which connects to a damping cylinder. Said damping control device comprises a housing which is fixed to said damping cylinder, a pressure-reducing unit which is positioned in said housing and defines a connection channel which connects to said damping cylinder, a control unit which connects to said damping cylinder, a plurality of adjustment valves configured to push said control unit, and a actuatorwhich is located between said pressure-reducing unit and said adjustment valves.

Description

阻尼控制裝置Damping control device

本發明是有關於一種控制裝置,特別是指一種用於車輛避震器的阻尼控制裝置。The present invention relates to a control device, in particular to a damping control device for vehicle shock absorbers.

一般的車輛避震器會因為路面的顛簸狀況而受到車身壓縮或拉伸,並促使車輛避震器內的液壓油被壓縮而流過孔隙,而在液壓油通過孔隙時便會產生阻尼力,透過阻尼力可提供緩衝而改善乘坐車輛時的舒適度,該車輛避震器的應答特性及阻尼力同時也會影響車輛轉彎時的操控性及安全性。The general vehicle shock absorber will be compressed or stretched by the body due to the bumpy conditions of the road, and the hydraulic oil in the vehicle shock absorber will be compressed and flow through the pores. When the hydraulic oil passes through the pores, a damping force will be generated. The damping force can provide cushioning and improve the comfort when riding in the vehicle. The response characteristics and damping force of the vehicle's shock absorber will also affect the maneuverability and safety of the vehicle when turning.

為了能根據不同的車輛行駛狀態做出最佳的回應,目前市面上的車輛避震器多透過馬達來調整閥門大小,以根據需求控制阻尼力,但前述的調整方式會因馬達致動的反應時間慢,而使應答性不佳,且還有著阻尼力調整不夠線性而造成舒適度不佳之問題。因此現時有以比例閥來控制流量,以調整阻尼力的避震器,但這種避震器中多使用彈簧作為復位機構,彈簧容易在長期使用下彈性疲乏,且當要因應不同的車型需求而調整特性時,彈簧所能調整的參數較少,不利於模組化。In order to make the best response according to different vehicle driving conditions, the current vehicle shock absorbers on the market mostly use the motor to adjust the valve size to control the damping force according to the demand, but the aforementioned adjustment method will be based on the response of the motor actuation. The time is slow, and the responsiveness is not good, and the damping force adjustment is not linear enough to cause poor comfort. Therefore, there are shock absorbers that use a proportional valve to control the flow rate to adjust the damping force. However, springs are often used as the reset mechanism in this type of shock absorbers. The springs are prone to elasticity fatigue under long-term use, and they must be adapted to the needs of different models. When adjusting the characteristics, there are fewer parameters that the spring can adjust, which is not conducive to modularization.

因此,本發明之目的,即在提供一種利於模組化的阻尼控制裝置。Therefore, the purpose of the present invention is to provide a damping control device that is conducive to modularization.

於是,本發明阻尼控制裝置,連通一阻尼筒。該阻尼控制裝置包含一固定於該阻尼筒上的殼體、一設置於該殼體內且界定出一連通該阻尼筒的連接通道的減壓單元、一與該殼體及該減壓單元相配合界定出一連通該阻尼筒的溢流空間的控制單元、複數沿一軸向方向彼此相互堆疊並推抵該控制單元的調整閥片,及一位於該減壓單元及該等調整閥片間的主提動頭。Therefore, the damping control device of the present invention communicates with a damping cylinder. The damping control device includes a housing fixed on the damping cylinder, a decompression unit provided in the housing and defining a connecting passage communicating with the damping cylinder, and a decompression unit that cooperates with the housing and the decompression unit A control unit communicating with the overflow space of the damping cylinder, a plurality of adjusting valve plates stacked on each other in an axial direction and pushing against the control unit are defined, and a control valve plate located between the pressure reducing unit and the adjusting valve plates The main lift head.

該控制單元可受操作控制液壓油進入該溢流空間的流量。該主提動頭圍繞出一連通該連接通道及該控制單元的開孔,當該減壓單元內的液壓油壓力等於該控制單元內的液壓油壓力時,該主提動頭被該等調整閥片壓抵於該減壓單元上,並允許液壓油由該開孔流入該控制單元中,當該減壓單元內的液壓油壓力大於該控制單元內的液壓油壓力時,該主提動頭被液壓油沿該軸向方向推動而壓縮該等調整閥片,從而使該主提動頭遠離該減壓單元而形成一連通該溢流空間的縫隙。The control unit can be operated to control the flow of hydraulic oil into the overflow space. The main poppet surrounds an opening connecting the connecting passage and the control unit. When the hydraulic oil pressure in the pressure reducing unit is equal to the hydraulic oil pressure in the control unit, the main poppet is adjusted by the The valve plate presses against the pressure reducing unit and allows hydraulic oil to flow into the control unit through the opening. When the pressure of the hydraulic oil in the pressure reducing unit is greater than the pressure of the hydraulic oil in the control unit, the main lift The head is pushed by the hydraulic oil along the axial direction to compress the regulating valve plates, so that the main poppet is away from the pressure reducing unit to form a gap communicating with the overflow space.

本發明之功效在於:透過該比例閥可控制液壓油進入該溢流空間的流量,如此可改變該減壓單元及該控制單元內的液壓油壓力,進而推動該主提動頭,以達到調整阻尼力之功效,而該等調整閥片是用於提供彈性復位力,可因應不同車型的不同需求而抽換所有或部分的調整閥片,以改變該等調整閥片的剛性或數量,如此可更進一步地調整阻尼特性,以利於模組化。The effect of the present invention is that the flow of hydraulic oil into the overflow space can be controlled through the proportional valve, so that the pressure of the hydraulic oil in the pressure reducing unit and the control unit can be changed, and the main poppet can be pushed to achieve adjustment. The effect of damping force, and these adjusting valves are used to provide elastic restoring force. All or part of the adjusting valve plates can be replaced according to the different needs of different models to change the rigidity or quantity of the adjusting valve plates. The damping characteristics can be further adjusted to facilitate modularization.

參閱圖1,本發明阻尼控制裝置1之一實施例,適用於安裝在一車輛避震器的阻尼筒2上。該阻尼控制裝置1包含一固定於該阻尼筒2上的殼體3、一設置於該殼體3內的減壓單元4、一沿一軸向方向A與該減壓單元4相間隔而位於該殼體3內部的控制單元5、複數沿該軸向方向A彼此相互堆疊並位於該減壓單元4及該控制單元5間的調整閥片6,及一位於該減壓單元4及該等調整閥片6間且圍繞出一開孔70的主提動頭7。Referring to Fig. 1, an embodiment of the damping control device 1 of the present invention is suitable for installation on a damping tube 2 of a vehicle shock absorber. The damping control device 1 includes a housing 3 fixed on the damping cylinder 2, a decompression unit 4 arranged in the housing 3, and a decompression unit 4 spaced apart from the decompression unit 4 along an axial direction A. The control unit 5 inside the housing 3, a plurality of regulating valve plates 6 stacked on each other along the axial direction A and located between the decompression unit 4 and the control unit 5, and a regulating valve plate 6 located between the decompression unit 4 and the control unit 5 The main poppet 7 with an opening 70 is adjusted between the valve plates 6 and surrounds it.

該減壓單元4包括一圍繞出一連接通道410的基座41、一連接該基座41及該殼體3且圍繞出一通口420的殼座42、一設置於該殼座42內且開設有複數孔洞430的閥座43,及複數沿該軸向方向A設置於該殼座42及該閥座43之間且彼此堆疊的減壓閥片44。該連接通道410連通該阻尼筒2,且液壓油可依序通過該連接通道410、該閥座43之該等孔洞430、該等減壓閥片44,及該通口420。The decompression unit 4 includes a base 41 surrounding a connecting channel 410, a housing 42 connecting the base 41 and the housing 3 and surrounding a through opening 420, and a housing 42 disposed in the housing 42 and opening A valve seat 43 having a plurality of holes 430, and a plurality of pressure reducing valve plates 44 disposed between the housing seat 42 and the valve seat 43 along the axial direction A and stacked on each other. The connecting passage 410 communicates with the damping cylinder 2, and hydraulic oil can sequentially pass through the connecting passage 410, the holes 430 of the valve seat 43, the pressure reducing valve plates 44, and the port 420.

該控制單元5與該殼體3及該減壓單元4相配合界定出一連通該阻尼筒2的溢流空間B。該控制單元5包括一設置於該殼體3內的比例閥51、一沿該軸向方向A設置於該等調整閥片6及該比例閥51之間的固定座52、一固定於該固定座52及該比例閥51之間的導流座53,及一可被該比例閥51帶動的先導提動頭54。該比例閥51具有一電磁線圈511、一連接該先導提動頭54且可被該電磁線圈511沿該軸向方向A帶動的推桿512,及一圍繞該先導提動頭54且頂抵該推桿512的彈簧513。該固定座52具有一連接該比例閥51且圍繞該等調整閥片6的外座部521,及一螺設於該外座部521內且頂抵該等調整閥片6的內座部522。該內座部522可受旋動而相對於該外座部521沿該軸向方向A螺動,以改變壓抵該等調整閥片6的力道。The control unit 5 cooperates with the housing 3 and the decompression unit 4 to define an overflow space B communicating with the damping cylinder 2. The control unit 5 includes a proportional valve 51 arranged in the housing 3, a fixed seat 52 arranged between the adjusting valve plates 6 and the proportional valve 51 along the axial direction A, and a fixed seat 52 fixed to the fixed The guide seat 53 between the seat 52 and the proportional valve 51, and a pilot poppet 54 that can be driven by the proportional valve 51. The proportional valve 51 has an electromagnetic coil 511, a push rod 512 that is connected to the pilot poppet 54 and can be driven by the solenoid 511 in the axial direction A, and a push rod 512 that surrounds the pilot poppet 54 and abuts against the pilot poppet 54 The spring 513 of the push rod 512. The fixed seat 52 has an outer seat portion 521 connected to the proportional valve 51 and surrounding the adjusting valve plates 6, and an inner seat portion 522 screwed in the outer seat portion 521 and pressed against the adjusting valve plates 6 . The inner seat portion 522 can be rotated relative to the outer seat portion 521 along the axial direction A to change the force against the regulating valve plates 6.

該導流座53具有一被固定於該外座部521及該比例閥51之間且界定出一洩壓孔530的座體部531,及一由該座體部531沿該軸向方向A朝該主提動頭7延伸而穿設該內座部522的頭部532。該座體部531界定出一用於容置該彈簧513且連通該洩壓孔530的內部空間533,該洩壓孔530直接連通該溢流空間B。該頭部532界定出一連通該內部空間533並沿該軸向方向A延伸的延伸槽534,及複數連通該延伸槽534及該主提動頭7之開孔70的側孔535。該先導提動頭54伸置於該延伸槽534內,並與該導流座53共同界定出一連通該等側孔535的流通間隙55。The diversion seat 53 has a seat portion 531 fixed between the outer seat portion 521 and the proportional valve 51 and defining a pressure relief hole 530, and a seat portion 531 along the axial direction A The head 532 of the inner seat 522 extends toward the main lifting head 7 and penetrates therethrough. The seat portion 531 defines an internal space 533 for accommodating the spring 513 and communicating with the pressure relief hole 530, and the pressure relief hole 530 directly communicates with the overflow space B. The head 532 defines an extension slot 534 that communicates with the internal space 533 and extends along the axial direction A, and a plurality of side holes 535 that communicate with the extension slot 534 and the opening 70 of the main poppet 7. The pilot poppet 54 extends in the extension groove 534 and defines a circulation gap 55 communicating with the side holes 535 together with the diversion seat 53.

當該比例閥51之電磁線圈511通電時,該推桿512會沿該軸向方向A朝該主提動頭7的方向移動而壓縮該彈簧513,並使該先導提動頭54朝外推動,使該流通間隙55與該內部空間533的流量減少,當該先導提動頭54向外推動到底時,僅有少部分的液壓油能由該等側孔535通過該流通間隙55進入該內部空間533,再由該洩壓孔530流入該溢流空間B中。當該電磁線圈511不通電時,該推桿512被該彈簧513推動而復位,並使該推桿512與該流通間隙55朝遠離該主提動頭7的方向朝內移動,使該流通間隙55與該內部空間533的流量增加至最大,讓大部分的液壓油能由該側孔535通過該流通間隙55進入該內部空間533,再由該洩壓孔530流入該溢流空間B中。而控制該電磁線圈511之通電量,便可控制該流通間隙55與該內部空間533的流量大小。When the solenoid 511 of the proportional valve 51 is energized, the push rod 512 will move in the axial direction A toward the direction of the main poppet 7 to compress the spring 513 and push the pilot poppet 54 outward , So that the flow of the circulation gap 55 and the internal space 533 is reduced. When the pilot poppet 54 is pushed to the bottom, only a small part of the hydraulic oil can enter the interior through the side holes 535 through the circulation gap 55 The space 533 flows into the overflow space B through the pressure relief hole 530. When the solenoid 511 is not energized, the push rod 512 is pushed by the spring 513 to reset, and the push rod 512 and the circulation gap 55 are moved inwardly away from the main poppet 7 to make the circulation gap The flow rate between 55 and the internal space 533 is increased to the maximum, so that most of the hydraulic oil can enter the internal space 533 from the side hole 535 through the circulation gap 55, and then flow into the overflow space B through the pressure relief hole 530. By controlling the energization amount of the electromagnetic coil 511, the flow rate of the circulation gap 55 and the internal space 533 can be controlled.

參閱圖1及圖2,本實施例的作動過程如下:當該比例閥51之電磁線圈511通電,且該流通間隙55與該內部空間533之間的流量如圖1所示地為最小時,該阻尼筒2內的液壓油會由該連接通道410進入,並依序通過該閥座43之孔洞430、該等減壓閥片44及該殼座42之通口420。接著液壓油會被靠抵該減壓單元4的主提動頭7擋抵,而僅能從該主提動頭7中間的開孔70流入該內座部522中,此時大部分的液壓油會留在該內座部522內,使該內座部522中的壓力與進入該連接通道410的液壓油大致相等,進而使該主提動頭7不會被推動而緊抵該殼座42,需要特別說明的是,在前述過程中,有一小部分的液壓油會經由該等側孔535流入該洩壓孔530,此時的阻尼力較硬。1 and 2, the operation process of this embodiment is as follows: when the solenoid 511 of the proportional valve 51 is energized, and the flow between the circulation gap 55 and the internal space 533 is the smallest as shown in FIG. 1, The hydraulic oil in the damping cylinder 2 will enter through the connecting passage 410 and pass through the hole 430 of the valve seat 43, the pressure reducing valve plates 44 and the port 420 of the housing 42 in sequence. Then the hydraulic oil will be blocked by the main poppet 7 of the decompression unit 4, and can only flow into the inner seat 522 from the opening 70 in the middle of the main poppet 7. At this time, most of the hydraulic oil The oil will stay in the inner seat 522, so that the pressure in the inner seat 522 is approximately equal to the hydraulic oil entering the connecting passage 410, so that the main poppet 7 will not be pushed against the housing seat. 42. It should be particularly noted that in the foregoing process, a small part of the hydraulic oil will flow into the pressure relief hole 530 through the side holes 535, and the damping force at this time is relatively hard.

另一方面,當控制該比例閥51之電磁線圈511通電,使該流通間隙55與該內部空間533之間的流量如圖2所示地較大時(也就是該主提動頭7兩相反側的壓力不同),該內座部522中的液壓油會大量地由該等側孔535經該洩壓孔530進入該溢流空間B中,使該內座部522中的壓力小於該連接通道410的壓力,因此通過該通口420的液壓油會沿該軸向方向A朝該導流座53的方向推動該主提動頭7,使該主提動頭7遠離該殼座42而形成一連通該溢流空間B的縫隙,故通過該通口420的液壓油大部分會在推動該主提動頭7後由該縫隙流出,此時的阻尼力較軟。當該電磁線圈511不通電時,進入該內部空間533的流量最大,使該主提動頭7與該殼座42間有最大的縫隙,此時的阻尼力為最軟。需要特別說明的是,該主提動頭7在前述移動過程中會推抵該等調整閥片6,使該等調整閥片6變形並產生復位的彈性力,透過抽換不同的調整閥片6,可改變該等調整閥片6的剛性,將該內座部522相對於該外座部521螺動,則能改變壓抵該等調整閥片6的力道,如此也可調整該等調整閥片6的特性,而藉由調整該等調整閥片6的特性,便可調整該主提動頭7的移動行程及形成的縫隙大小,達到細部調整阻尼力之功效。On the other hand, when the solenoid 511 of the proportional valve 51 is energized to make the flow between the circulation gap 55 and the internal space 533 larger as shown in Figure 2 (that is, the main poppet 7 is opposite to each other). Side pressure is different), the hydraulic oil in the inner seat portion 522 will enter the overflow space B through the side holes 535 through the pressure relief hole 530 in a large amount, so that the pressure in the inner seat portion 522 is smaller than the connection The pressure of the passage 410, therefore, the hydraulic oil passing through the port 420 will push the main poppet 7 in the direction of the guide seat 53 along the axial direction A, so that the main poppet 7 is far away from the housing 42. A gap connecting the overflow space B is formed, so most of the hydraulic oil passing through the port 420 will flow out of the gap after pushing the main poppet 7, and the damping force at this time is relatively soft. When the electromagnetic coil 511 is not energized, the flow into the internal space 533 is the largest, so that there is the largest gap between the main poppet 7 and the housing 42 and the damping force at this time is the softest. It should be particularly noted that the main poppet 7 will push against the adjusting valve plates 6 during the aforementioned movement process, deforming the adjusting valve plates 6 and generating elastic force for resetting, by changing different adjusting valve plates. 6. The rigidity of the adjusting valve plates 6 can be changed, and the inner seat portion 522 can be screwed relative to the outer seat portion 521, so that the force pressing the adjusting valve plates 6 can be changed, so that the adjustments can also be adjusted. The characteristics of the valve plate 6, and by adjusting the characteristics of the adjustment valve plates 6, the movement stroke of the main poppet 7 and the size of the gap formed can be adjusted to achieve the effect of finely adjusting the damping force.

綜上所述,該比例閥51可根據需求以電控制該先導提動頭54的移動位置,從而依需求改變阻尼特性。該等調整閥片6在被壓縮後可提供用於復位的彈性力,且使用者可根據需求拆換不同剛性、不同規格的調整閥片6,可對應不同規格的車輛,有利於模組化且提高使用便利性,故確實能達成本發明之目的。In summary, the proportional valve 51 can electrically control the moving position of the pilot poppet 54 according to requirements, thereby changing the damping characteristics according to requirements. The adjusting valve plates 6 can provide elastic force for resetting after being compressed, and the user can replace the adjusting valve plates 6 of different rigidity and different specifications according to the needs, which can correspond to vehicles of different specifications, which is beneficial to modularization And to improve the convenience of use, it can indeed achieve the purpose of the invention.

惟以上所述者,僅為本發明之實施例而已,當不能以此限定本發明實施之範圍,凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本發明專利涵蓋之範圍內。However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

1:阻尼控制裝置 2:阻尼筒 3:殼體 4:減壓單元 41:基座 410:連接通道 42:殼座 420:通口 43:閥座 430:孔洞 44:減壓閥片 5:控制單元 51:比例閥 511:電磁線圈 512:推桿 513:彈簧 52:固定座 521:外座部 522:內座部 53:導流座 530:洩壓孔 531:座體部 532:頭部 533:內部空間 534:延伸槽 535:側孔 54:先導提動頭 55:流通間隙 6:調整閥片 70:開孔 7:主提動頭 A:軸向方向 B:溢流空間 1: Damping control device 2: Damping cylinder 3: shell 4: Decompression unit 41: Pedestal 410: connection channel 42: Shell seat 420: Port 43: valve seat 430: Hole 44: pressure reducing valve 5: Control unit 51: Proportional valve 511: Electromagnetic coil 512: putter 513: Spring 52: fixed seat 521: Outer Seat 522: inner seat 53: diversion seat 530: Pressure Relief Hole 531: Seat Body 532: head 533: Internal Space 534: Extension Slot 535: side hole 54: Pilot lift head 55: Circulation gap 6: Adjust valve 70: Hole 7: Main lifting head A: Axial direction B: overflow space

本發明之其它的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中: 圖1是一剖視圖,說明本發明阻尼控制裝置1之一實施例;及 圖2是一剖視圖,說明本實施例中之一主提動頭移動的態樣。 Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a cross-sectional view illustrating an embodiment of the damping control device 1 of the present invention; and Figure 2 is a cross-sectional view illustrating the movement of one of the main poppets in this embodiment.

1:阻尼控制裝置 1: Damping control device

2:阻尼筒 2: Damping cylinder

3:殼體 3: shell

4:減壓單元 4: Decompression unit

41:基座 41: Pedestal

410:連接通道 410: connection channel

42:殼座 42: Shell seat

420:通口 420: Port

43:閥座 43: valve seat

430:孔洞 430: Hole

44:減壓閥片 44: pressure reducing valve

5:控制單元 5: Control unit

51:比例閥 51: Proportional valve

511:電磁線圈 511: Electromagnetic coil

512:推桿 512: putter

513:彈簧 513: Spring

52:固定座 52: fixed seat

521:外座部 521: Outer Seat

522:內座部 522: inner seat

53:導流座 53: diversion seat

530:洩壓孔 530: Pressure Relief Hole

531:座體部 531: Seat Body

532:頭部 532: head

533:內部空間 533: Internal Space

534:延伸槽 534: Extension Slot

535:側孔 535: side hole

54:先導提動頭 54: Pilot lift head

55:流通間隙 55: Circulation gap

6:調整閥片 6: Adjust the valve plate

70:開孔 70: Hole

7:主提動頭 7: Main lifting head

A:軸向方向 A: Axial direction

B:溢流空間 B: overflow space

Claims (5)

一種阻尼控制裝置,連通一阻尼筒,該阻尼控制裝置包含:一殼體,固定於該阻尼筒上;一減壓單元,設置於該殼體內,且界定出一連通該阻尼筒的連接通道,該減壓單元包括一圍繞出該連接通道的基座、一連接該基座及該殼體且圍繞出一通口的殼座、一設置於該殼座內的閥座,及複數沿該軸向方向設置於該殼座及該閥座之間且彼此堆疊的減壓閥片,該連接通道中的液壓油可通過該閥座及該等減壓閥片而進入該通口;一控制單元,與該殼體及該減壓單元相配合界定出一連通該阻尼筒的溢流空間,該控制單元可受操作控制液壓油進入該溢流空間的流量;複數調整閥片,沿一軸向方向彼此相互堆疊並推抵該控制單元;及一主提動頭,位於該減壓單元及該等調整閥片間,該主提動頭圍繞出一連通該連接通道及該控制單元的開孔,當該減壓單元內的液壓油壓力等於該控制單元內的液壓油壓力時,該主提動頭被該等調整閥片壓抵於該減壓單元上,當該主提動頭靠抵該減壓單元之殼座時,該通口連通該開孔,並允許液壓油由該開孔流入該控制單元中,當該減壓單元內的液壓油壓力大於該控制單元內的液壓油壓力時,該主提動頭被液壓油沿該軸向方向推動而壓縮該等調整閥片,從而使該主提動頭遠離該減壓單元而形成一連通該溢流空間的縫隙,當該主提動頭遠離該殼座時,該通 口連通該溢流空間及該開孔。 A damping control device communicates with a damping cylinder. The damping control device includes: a housing fixed on the damping cylinder; a decompression unit arranged in the housing and defining a connecting passage communicating with the damping cylinder, The decompression unit includes a base surrounding the connecting channel, a housing connected to the base and the shell and surrounding a port, a valve seat arranged in the housing, and a plurality of The pressure reducing valve plates arranged between the shell seat and the valve seat and stacked on each other, the hydraulic oil in the connecting channel can enter the port through the valve seat and the pressure reducing valve plates; a control unit, Cooperating with the housing and the decompression unit to define an overflow space communicating with the damping cylinder, the control unit can be operated to control the flow of hydraulic oil into the overflow space; a plurality of adjusting valve plates are along an axial direction Stacked on each other and pushed against the control unit; and a main poppet located between the decompression unit and the adjusting valve plates, the main poppet surrounds an opening connecting the connecting channel and the control unit, When the hydraulic oil pressure in the decompression unit is equal to the hydraulic oil pressure in the control unit, the main poppet is pressed against the decompression unit by the regulating valve plates, and when the main poppet abuts against the pressure reduction unit When the housing of the decompression unit is connected, the port communicates with the opening and allows hydraulic oil to flow into the control unit from the opening. When the pressure of the hydraulic oil in the decompression unit is greater than the pressure of the hydraulic oil in the control unit , The main poppet is pushed by the hydraulic oil in the axial direction to compress the regulating valve plates, so that the main poppet is far away from the decompression unit to form a gap communicating with the overflow space. When the main lift When the moving head is far away from the housing, the The opening communicates with the overflow space and the opening. 如請求項1所述的阻尼控制裝置,其中,該控制單元包括一設置於該殼體內的比例閥、一沿該軸向方向設置於該等調整閥片及該比例閥之間的固定座、一固定於該固定座及該比例閥之間且界定出一洩壓孔的導流座,及一可被該比例閥帶動而調整該洩壓孔之流量的先導提動頭,該洩壓孔連通該溢流空間。 The damping control device according to claim 1, wherein the control unit includes a proportional valve arranged in the housing, a fixed seat arranged between the adjusting valve plates and the proportional valve along the axial direction, A diversion seat fixed between the fixed seat and the proportional valve and defining a pressure relief hole, and a pilot poppet that can be driven by the proportional valve to adjust the flow rate of the pressure relief hole, the pressure relief hole Connect the overflow space. 如請求項2所述的阻尼控制裝置,其中,該控制單元之導流座具有一被固定於該固定座及該比例閥之間且界定出該洩壓孔的座體部,及一由該座體部沿該軸向方向朝該主提動頭延伸而穿設該固定座的頭部,該座體部界定出一連通該洩壓孔的內部空間,該頭部界定出一連通該內部空間並沿該軸向方向延伸的延伸槽,及複數連通該延伸槽及該主提動頭之開孔的側孔,該先導提動頭伸置於該延伸槽內,並與該導流座共同界定出一連通該等側孔的流通間隙,當該先導提動頭被該比例閥帶動時,可使該流通間隙沿該軸向方向移動,以改變該流通間隙與該內部空間之間的流量。 The damping control device according to claim 2, wherein the diversion seat of the control unit has a seat portion fixed between the fixed seat and the proportional valve and defining the pressure relief hole, and a seat portion defined by the pressure relief hole. The seat body portion extends along the axial direction toward the main poppet to pass through the head of the fixing seat, the seat body portion defines an internal space communicating with the pressure relief hole, and the head defines a communicating interior Space and an extension groove extending along the axial direction, and a plurality of side holes connecting the extension groove and the opening of the main lift head, the pilot lift head extends in the extension groove and is connected to the diversion seat A circulation gap connecting the side holes is defined together. When the pilot poppet is driven by the proportional valve, the circulation gap can be moved in the axial direction to change the gap between the circulation gap and the internal space. flow. 如請求項3所述的阻尼控制裝置,其中,該控制單元之比例閥具有一電磁線圈、一連接該先導提動頭且可被該電磁線圈沿該軸向方向帶動的推桿,及一容置於該內部空間且圍繞該先導提動頭的彈簧,該彈簧會沿該軸向方向推抵該推桿以提供一遠離該導流座的彈性回復力,當該電磁線圈通電時,該推桿沿該軸向方向朝該導流座移動,並壓縮該彈 簧,當該電磁線圈不通電時,該推桿被該彈簧推動而復位。 The damping control device according to claim 3, wherein the proportional valve of the control unit has an electromagnetic coil, a push rod connected to the pilot poppet and can be driven by the electromagnetic coil in the axial direction, and a container A spring placed in the internal space and surrounding the pilot poppet will push the push rod in the axial direction to provide an elastic restoring force away from the guide seat. When the solenoid coil is energized, the push The rod moves toward the deflector in the axial direction and compresses the elastic When the electromagnetic coil is not energized, the push rod is pushed by the spring to reset. 如請求項2所述的阻尼控制裝置,其中,該固定座具有一連接該比例閥且圍繞該等調整閥片的外座部,及一螺設於該外座部內且頂抵該等調整閥片的內座部,該內座部可受旋動而相對於該外座部沿該軸向方向移動,以改變壓抵該等調整閥片的力道。 The damping control device according to claim 2, wherein the fixed seat has an outer seat portion connected to the proportional valve and surrounding the adjustment valve plates, and a screw installed in the outer seat portion and abuts against the adjustment valves The inner seat part of the disc can be rotated and moved in the axial direction relative to the outer seat part to change the force against the regulating valve discs.
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014070654A (en) * 2012-09-27 2014-04-21 Hitachi Automotive Systems Ltd Attenuation force adjustment type buffer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014070654A (en) * 2012-09-27 2014-04-21 Hitachi Automotive Systems Ltd Attenuation force adjustment type buffer

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