TWI719712B - Damping control device - Google Patents
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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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Abstract
Description
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
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
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
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
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
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
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
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
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
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JP2014070654A (en) * | 2012-09-27 | 2014-04-21 | Hitachi Automotive Systems Ltd | Attenuation force adjustment type buffer |
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JP2014070654A (en) * | 2012-09-27 | 2014-04-21 | Hitachi Automotive Systems Ltd | Attenuation force adjustment type buffer |
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