WO2017071484A1 - 一种车用前、后制动器制动力非线性分配感载阀 - Google Patents

一种车用前、后制动器制动力非线性分配感载阀 Download PDF

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WO2017071484A1
WO2017071484A1 PCT/CN2016/102113 CN2016102113W WO2017071484A1 WO 2017071484 A1 WO2017071484 A1 WO 2017071484A1 CN 2016102113 W CN2016102113 W CN 2016102113W WO 2017071484 A1 WO2017071484 A1 WO 2017071484A1
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valve
pressure regulating
regulating chamber
variable stiffness
spring
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PCT/CN2016/102113
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English (en)
French (fr)
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刘成晔
刘旭
孟继德
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江苏理工学院
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Publication of WO2017071484A1 publication Critical patent/WO2017071484A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
    • B60T8/30—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels responsive to load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves

Definitions

  • the invention relates to a non-linear distribution sensory valve for braking force of front and rear brakes of a vehicle, which is suitable for an automobile brake system.
  • the function of the brake system is to reduce or even stop the speed of the moving car, keep the speed of the downhill car stable and keep the stopped car (including on the ramp).
  • the automobile hydraulic brake system is a device that transmits and distributes the braking force applied by the driver on the brake pedal in the form of pressure energy to the front and rear brakes.
  • the limitation of the conventional fixed-load sensing valve is that It is not possible to meet the requirements of full and no-load of the vehicle at the same time, the braking efficiency of the front and rear wheels of the car is low, and the disadvantages such as the road surface adhesion coefficient cannot be fully utilized.
  • the pressure distribution characteristics of the traditional load-sensing proportional valve and the load-sensing pressure limiting valve are basically straight lines or broken lines. This kind of distribution relationship can not meet the requirements of the ideal brake braking force distribution characteristics, so there is a main problem of poor braking performance. Excessive braking distance is likely to cause traffic accidents and reduce the safety of driving.
  • the technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a non-linear distribution sensory valve for braking force of front and rear brakes of a vehicle, which can greatly improve the utilization rate of road surface adhesion conditions, thereby improving the automobile. Braking performance, shortening the braking distance of the car.
  • a non-linear distribution load-sensing valve for front and rear brake force of a vehicle comprising a valve body, a pair of valve chambers disposed inside the valve body, and a valve body Upper sensing device;
  • a front pressure regulating chamber and a rear pressure regulating chamber are respectively disposed at two ends of the valve chamber, and a pressure regulating chamber piston, a pressure regulating component, a linear spring and a piston are sequentially disposed between the front pressure regulating chamber and the rear pressure regulating chamber.
  • the sensing device and The pressure regulating components are connected.
  • the sensing device includes a sensory lever, one end of which is connected to the chassis of the vehicle.
  • the pressure regulating assembly includes a variable stiffness movable spring, and a variable stiffness fixed spring disposed outside the variable stiffness movable spring And a movable spring seat disposed at a rear end of the variable stiffness movable spring, and a movable spring top ring disposed at a front end of the variable stiffness movable spring, and a fixed spring seat disposed at a rear end of the variable stiffness fixed spring, the movable spring seat and the sensing lever
  • the pressure regulating chamber piston comprises two, and a piston push rod is arranged in the middle of the two pressure regulating chamber pistons, and the piston push rod is disposed in the middle of the pressure regulating assembly.
  • the front end of the front pressure regulating chamber piston is provided with a limit retaining ring, and the rear end of the piston is disposed. Limited position retaining ring.
  • the spring force-displacement characteristic formula of the variable stiffness movable spring is F ⁇ L 2 , where F is the spring force of the variable stiffness movable spring, L The displacement of the spring for variable stiffness.
  • the front pressure regulating chamber is provided with a forward oil hole and a front oil outlet hole
  • the rear pressure regulating chamber is provided with a rear oil inlet hole and a rear oil outlet hole
  • the forward oil hole communicates with a front chamber of a brake valve of the automobile
  • the rear oil inlet communicates with a rear chamber of a brake valve of the automobile
  • the front oil outlet communicates with a front brake cylinder of the automobile
  • the rear exit The oil hole communicates with the rear brake cylinder of the vehicle.
  • the pressure regulating chamber is further provided with a pressure relief hole. Depressing the pressure hole and The low pressure oil lines of the vehicle brake system are connected.
  • the present invention has the following beneficial effects: 1.
  • the present invention realizes non-linear distribution of oil pressure in the front and rear pressure regulating chambers of the load sensing valve by using a variable stiffness movable spring, thereby realizing the front of the vehicle,
  • the non-linear distribution of the rear brake braking force improves the braking performance of the vehicle, shortens the braking distance, and improves driving safety.
  • the present invention changes the distribution characteristics of the braking force of the front and rear brakes of the vehicle by sensing the change of the vehicle load, enhances the adaptability of the vehicle to the load change, and improves the utilization rate of the road surface adhesion conditions.
  • FIG. 1 is a schematic structural view of a non-linear distribution load sensing valve for a front and rear brake force of a vehicle according to the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of the vehicle of Figure 1 when fully loaded;
  • Figure 3 is a cross-sectional view taken along line A-A of the vehicle of Figure 1 under no-load conditions;
  • valve body 1. valve cavity, 3. sensing device, 4. front pressure regulating chamber, 5. rear pressure regulating chamber, 6. pressure regulating chamber piston, 7. linear spring, 8. piston, 9 .
  • Load lever 10. Variable stiffness movable spring, 11. Variable stiffness fixed spring, 12. Active spring seat, 13. Spring top ring, 14. Fixed spring seat, 15. Piston push rod, 16. Limit retaining ring, 17. Automobile chassis, D. Advance oil hole, E. Front oil hole, F. Rear oil hole, G. Rear oil hole, H. Pressure relief hole.
  • a non-linear distribution load-sensing valve for a front and rear brake force of a vehicle includes a valve body 1, a pair of valve chambers 2 disposed inside the valve body 1, and a valve body 1 disposed Upper sensing device 3;
  • the two ends of the valve chamber 2 are respectively provided with a front pressure regulating chamber 4 and a rear pressure regulating chamber 5, and the front pressure regulating chamber 4 is Between the rear pressure regulating chambers 5, a pressure regulating chamber piston 6, a pressure regulating assembly, a linear spring 7 and a piston 8 are arranged in sequence, and the sensing device 3 is connected to the pressure regulating assembly.
  • the load-sensing device 3 includes a load-bearing lever 9, one end of which is connected to the vehicle chassis 17.
  • the pressure regulating assembly includes a variable stiffness movable spring 10, and a variable stiffness movable spring 10
  • the outer variable stiffness fixing spring 11 and the movable spring seat 12 disposed at the rear end of the variable stiffness movable spring 10, and the movable spring top ring 13 disposed at the front end of the variable stiffness movable spring 10, and the fixing provided at the rear end of the variable stiffness fixing spring 11 a spring seat 14
  • the movable spring seat 12 is connected to the other end of the sensing lever 9
  • the pressure regulating chamber piston 6 comprises two, and a piston push rod 15 is arranged in the middle of the two pressure regulating chamber pistons 6 .
  • the piston push rod 15 is disposed in the middle of the pressure regulating assembly.
  • the front end of the front pressure regulating chamber piston 6 is provided with a limit retaining ring 16, the piston 6 A limited position collar 16 is provided at the rear end.
  • the spring force-displacement characteristic formula of the variable stiffness movable spring 10 is F ⁇ L 2 , where F is the spring force of the variable stiffness movable spring 10, L The displacement of the movable spring 10 is a variable stiffness.
  • the front pressure regulating chamber 4 is provided with a forward oil hole D and a front oil outlet hole E
  • the rear pressure regulating chamber 5 is provided with a rear oil inlet hole F and a rear outlet.
  • An oil hole G the forward oil hole D is in communication with a brake valve front chamber of the automobile
  • the rear oil inlet hole F is in communication with a brake valve rear chamber of the automobile
  • the front oil outlet hole E is braked with a front brake of the automobile
  • the cylinders communicate with each other
  • the rear oil outlets G communicate with the rear brake cylinders of the automobile.
  • the rear pressure regulating chamber 5 When the oil pressure of the rear pressure regulating chamber 5 is sufficient to overcome the preload force of the linear spring, in order to turn on the rear pressure regulating chamber 5 And a low pressure oil passage to unload the pressure, and the rear pressure regulating chamber 5 is further provided with a pressure relief hole H, and the pressure relief hole H communicates with the low pressure oil passage of the automobile brake system.
  • the invention designs a sensing load valve capable of realizing non-linear distribution of the braking force of the rear wheel brake in front of the vehicle, and the braking force relationship curve ( ⁇ line) of the front and rear brakes realized by the sensing load valve and the full load condition of the vehicle
  • the ideal front and rear brake braking force distribution curve (I line) can have two intersection points.
  • the vehicle has two synchronous adhesion coefficients, which can improve the vehicle's utilization coefficient and braking efficiency.
  • the ⁇ line can be kept below the I line under the full load condition and fit close to each other. At this time, the front and rear wheels of the vehicle can be prevented from being locked during the braking process of the vehicle, and the driving safety of the vehicle is improved.
  • variable-stiffness movable spring 10 moves to the left from the front-end pressure regulating chamber piston 6, and only the variable stiffness is obtained at this time.
  • the fixing spring 11 is placed on the pressure regulating chamber piston 6 at the front end.
  • variable stiffness fixed spring 11 and the variable stiffness movable spring 10 are simultaneously placed on the front end of the pressure regulating chamber piston 6, and the load sensing valve receives the load change signal transmitted from the vehicle.
  • the spring force-displacement characteristic on the piston 6 of the pressure regulating chamber at the front end of the action is changed, so that the braking effect can be better adapted to the change of the vehicle load.
  • the front pressure regulating chamber 4 is provided with a forward oil hole D and a front oil outlet hole E.
  • the rear pressure regulating chamber 5 is provided with a rear oil inlet hole F and a rear oil outlet hole G, a forward oil hole D and a brake valve front chamber of the automobile.
  • the rear inlet oil hole F communicates with the rear cavity of the brake valve of the automobile
  • the front oil outlet hole E communicates with the front brake cylinder of the automobile
  • the rear oil outlet hole G communicates with the rear brake cylinder of the automobile
  • the front brake is used for Control the brake of the front wheel
  • the rear brake is used to control the braking of the rear wheel
  • the front pressure regulating chamber 4 and the rear pressure regulating chamber 5 are controlled by the pressure releasing hole H, so that the oil pressure of the rear wheel cylinder of the automobile brake is as before The change in wheel cylinder oil pressure remains relatively constant.
  • variable stiffness movable spring 10 The variable stiffness movable spring 10, the variable stiffness fixed spring 11, the linear spring 7, the pressure regulating chamber piston 6, the piston 8 and the piston push
  • the rods 15 can all move axially along the center line of the valve chamber 2 under the action of the oil pressure, and realize the front pressure regulating chamber 4 and the rear pressure regulating chamber 5 according to their respective characteristics and mutual relationship. Linear relationship.
  • the present invention realizes the nonlinear distribution of the brake force of the front and rear brakes of the vehicle by using the variable stiffness movable spring to realize the nonlinear distribution of the oil pressures of the front and rear pressure regulating chambers of the load sensing valve.
  • the present invention changes the distribution characteristics of the braking force of the front and rear brakes of the vehicle by sensing the change of the vehicle load, enhances the adaptability of the vehicle to the load change, and improves the utilization rate of the road surface adhesion conditions.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

一种车用前、后制动器制动力非线性分配感载阀，包括阀体（1），及设置在阀体（1）内部的一对阀腔（2），及设置在阀体（1）上端的感载装置（3）；所述阀腔（2）包括分别设置在两端的前调压腔（4）和后调压腔（5），所述前调压腔（4）至后调压腔（5）之间依次设置有调压腔活塞（6）、调压组件、线性弹簧（7）和活塞（8），所述感载装置（3）与调压组件相连。该感载阀能够实现汽车前、后制动器制动力的非线性分配以提高汽车的制动效能。

Description

一种车用前、后制动器制动力非线性分配感载阀 技术领域
本发明涉及一种车用前、后制动器制动力非线性分配感载阀，适用于汽车制动系统。
背景技术
制动系统的功用是使行驶中的汽车车速降低甚至停车、使下坡行驶的汽车的速度保持稳定和使已经停驶的汽车保持不动(包括在坡道上)。汽车液压制动系统是将驾驶员施加在制动踏板上的制动力以压力能的形式传递并分配到前、后制动器上的装置，传统的具有固定比例的感载阀最大的局限性在于其不能同时满足车辆满载和空载的要求,汽车前、后轮的制动效率低,以及不能充分利用路面附着系数等缺点。传统的感载比例阀和感载限压阀的压力分配特性基本上都是直线或折线，这种分配关系不能满足理想的制动器制动力分配特性的要求，因此存在着制动效能差的主要问题，过长的制动距离容易导致交通事故的发生，降低驾驶的安全性。
发明内容
本发明所要解决的技术问题是克服现有技术的缺陷，提供一种车用前、后制动器制动力非线性分配感载阀，它可以较大程度地提高路面附着条件的利用率，从而提高汽车的制动效能，缩短汽车的制动距离。
本发明解决上述技术问题采取的技术方案是：一种车用前、后制动器制动力非线性分配感载阀，包括阀体，及设置在阀体内部的一对阀腔，及设置在阀体上端的感载装置；
所述阀腔的两端分别设置有前调压腔和后调压腔，所述前调压腔至后调压腔之间依次设置有调压腔活塞、调压组件、线性弹簧和活塞，所述感载装置与 调压组件相连。
进一步，为了使感载阀即时接收汽车传来的载荷变化，所述感载装置包括感载杠杆，所述感载杠杆的一端与汽车底盘相连。
进一步，为了使汽车的载荷变化能够转换成作用在调压活塞上的弹簧力-位移特性的变化，所述调压组件包括变刚度活动弹簧，及设置在变刚度活动弹簧外侧的变刚度固定弹簧，及设置在变刚度活动弹簧后端的活动弹簧座，及设置在变刚度活动弹簧前端的活动弹簧顶圈，及设置在变刚度固定弹簧后端的固定弹簧座，所述活动弹簧座与感载杠杆的另一端相连，所述调压腔活塞包括两个，所述两个调压腔活塞的中间设置有活塞推杆，所述活塞推杆设置在调压组件的中间。
进一步，为了能够限制活塞和调压腔活塞的极限位置以达到较为精确地控制油液压力的作用，所述前侧的调压腔活塞的前端设置有限位挡圈，所述活塞的后端设置有限位挡圈。
进一步，为了更好的满足理想的前、后制动器制动力的分配要求，所述变刚度活动弹簧的弹簧力-位移特性公式为F∝L2，其中F为变刚度活动弹簧的弹簧力，L为变刚度活动弹簧的位移。
进一步，为了使感载阀同时控制前、后制动器，所述前调压腔上设置有前进油孔和前出油孔，所述后调压腔上设置有后进油孔和后出油孔，所述前进油孔与汽车的制动阀前腔相通，所述后进油孔与汽车的制动阀后腔相通，所述前出油孔与汽车的前制动器制动缸相通，所述后出油孔与汽车的后制动器制动缸相通。
进一步，当后调压腔的油压足以克服线性弹簧的预紧力时，为了接通后调压腔和低压油路来卸载压力，所述后调压腔上还设置有卸压孔，所述卸压孔与 汽车制动系统的低压油路相通。
采用了上述技术方案后，本发明具有以下的有益效果：1、本发明通过使用变刚度活动弹簧来实现感载阀的前、后调压腔油液压力的非线性分配，从而实现汽车前、后制动器制动力的非线性分配以提高汽车的制动效能，缩短制动距离，提高驾驶安全性。2、本发明通过感知汽车载荷变化从而相应改变汽车前、后制动器制动力的分配特性，增强汽车对载荷变化的适应性以及提高路面附着条件的利用率。
附图说明
图1为本发明的一种车用前、后制动器制动力非线性分配感载阀的结构示意图；
图2为图1中汽车满载情况时的A-A剖面图；
图3为图1中汽车空载情况时的A-A剖面图；
图中：1.阀体，2.阀腔，3.感载装置，4.前调压腔，5.后调压腔，6.调压腔活塞，7.线性弹簧，8.活塞，9.感载杠杆，10.变刚度活动弹簧，11.变刚度固定弹簧，12.活动弹簧座，13.弹簧顶圈，14.固定弹簧座，15.活塞推杆，16.限位挡圈，17.汽车底盘，D.前进油孔，E.前出油孔，F.后进油孔，G.后出油孔，H.卸压孔。
具体实施方式
为了使本发明的内容更容易被清楚地理解，下面根据具体实施例并结合附图，对本发明作进一步详细的说明。
如图1-3所示，一种车用前、后制动器制动力非线性分配感载阀，包括阀体1，及设置在阀体1内部的一对阀腔2，及设置在阀体1上端的感载装置3；
所述阀腔2的两端分别设置有前调压腔4和后调压腔5，所述前调压腔4至 后调压腔5之间依次设置有调压腔活塞6、调压组件、线性弹簧7和活塞8，所述感载装置3与调压组件相连。
为了使感载阀即时接收汽车传来的载荷变化，所述感载装置3包括感载杠杆9，所述感载杠杆9的一端与汽车底盘17相连。
为了使汽车的载荷变化能够转换成作用在调压腔活塞6上的变刚度活动弹簧10力-位移特性的变化，所述调压组件包括变刚度活动弹簧10，及设置在变刚度活动弹簧10外侧的变刚度固定弹簧11，及设置在变刚度活动弹簧10后端的活动弹簧座12，及设置在变刚度活动弹簧10前端的活动弹簧顶圈13，及设置在变刚度固定弹簧11后端的固定弹簧座14，所述活动弹簧座12与感载杠杆9的另一端相连，所述调压腔活塞6包括两个，所述两个调压腔活塞6的中间设置有活塞推杆15，所述活塞推杆15设置在调压组件的中间。
为了能够限制活塞8和调压腔活塞6的极限位置以达到较为精确地控制油液压力的作用，所述前侧的调压腔活塞6的前端设置有限位挡圈16，所述活塞6的后端设置有限位挡圈16。
为了更好的满足理想的前、后制动器制动力的分配要求，所述变刚度活动弹簧10的弹簧力-位移特性公式为F∝L2，其中F为变刚度活动弹簧10的弹簧力，L为变刚度活动弹簧10的位移。
为了使感载阀同时控制前、后制动器，所述前调压腔4上设置有前进油孔D和前出油孔E，所述后调压腔5上设置有后进油孔F和后出油孔G，所述前进油孔D与汽车的制动阀前腔相通，所述后进油孔F与汽车的制动阀后腔相通，所述前出油孔E与汽车的前制动器制动缸相通，所述后出油孔G与汽车的后制动器制动缸相通。
当后调压腔5的油压足以克服线性弹簧的预紧力时，为了接通后调压腔5 和低压油路来卸载压力，所述后调压腔5上还设置有卸压孔H，所述卸压孔H与汽车制动系统的低压油路相通。
本发明设计了一种能够实现车辆前、使后轮制动器制动力非线性分配的感载阀,通过该感载阀所实现的前、后制动器制动力关系曲线(β线)与车辆满载工况理想的前、后制动器制动力分配曲线(I线)可以有两个交点,此时车辆存在两个同步附着系数,可以提高车辆的利用附着系数和制动效率；通过改变感载阀的结构参数，可以使得车辆在满载工况下β线始终保持在I线的下方，并贴合较近，此时在车辆制动过程中可以防止车辆前、后轮的抱死，提高车辆行驶安全性。
如图2所示，汽车满载时，汽车底盘17下移，感载杠杆9顺时针旋转一定的角度，使得变刚度活动弹簧10向左移动远离前端的调压腔活塞6，此时只有变刚度固定弹簧11顶在前端的调压腔活塞6上。
如图3所示，汽车空载时，此时变刚度固定弹簧11与变刚度活动弹簧10共同顶在前端的调压腔活塞6上，感载阀将其接收汽车传来的载荷变化信号，转成作用前端的调压腔活塞6上的弹簧力-位移特性的变化，从而使制动效果能更好地适应汽车载荷的变化状况。
前调压腔4上设置有前进油孔D和前出油孔E，后调压腔5上设置有后进油孔F和后出油孔G，前进油孔D与汽车的制动阀前腔相通，后进油孔F与汽车的制动阀后腔相通，前出油孔E与汽车的前制动器制动缸相通，后出油孔G与汽车的后制动器制动缸相通，前制动器用于控制前轮的制动，后制动器用于控制后轮的制动,并且通过卸压孔H来控制前调压腔4和后调压腔5，从而使汽车制动器后轮缸油液压力随前轮缸油液压力的变化保持相对稳定。其中变刚度活动弹簧10、变刚度固定弹簧11、线性弹簧7、调压腔活塞6、活塞8和活塞推 杆15它们均可在油液压力的作用下做沿阀腔2中心线方向上的轴向移动，并根据各自的特性和相互间的联系实现前调压腔4和后调压腔5呈非线性关系。
与现有技术相比，1、本发明通过使用变刚度活动弹簧来实现感载阀的前、后调压腔油液压力的非线性分配，从而实现汽车前、后制动器制动力的非线性分配以提高汽车的制动效能，缩短制动距离，提高驾驶安全性。2、本发明通过感知汽车载荷变化从而相应改变汽车前、后制动器制动力的分配特性，增强汽车对载荷变化的适应性以及提高路面附着条件的利用率。
以上所述的具体实施例，对本发明解决的技术问题、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

  1. 一种车用前、后制动器制动力非线性分配感载阀，其特征在于：包括阀体(1)，及设置在阀体(1)内部的一对阀腔(2)，及设置在阀体(1)上端的感载装置(3)；
    所述阀腔(2)的两端分别设置有前调压腔(4)和后调压腔(5)，所述前调压腔(4)至后调压腔(5)之间依次设置有调压腔活塞(6)、调压组件、线性弹簧(7)和活塞(8)，所述感载装置(3)与调压组件相连。
  2. 根据权利要求1所述的一种车用前、后制动器制动力非线性分配感载阀，其特征在于：所述感载装置(3)包括感载杠杆(9)，所述感载杠杆(9)的一端与汽车底盘(17)相连。
  3. 根据权利要求2所述的一种车用前、后制动器制动力非线性分配感载阀，其特征在于：所述调压组件包括变刚度活动弹簧(10)，及设置在变刚度活动弹簧(10)外侧的变刚度固定弹簧(11)，及设置在变刚度活动弹簧(10)后端的活动弹簧座(12)，及设置在变刚度活动弹簧(10)前端的活动弹簧顶圈(13)，及设置在变刚度固定弹簧(11)后端的固定弹簧座(14)，所述活动弹簧座(12)与感载杠杆(9)的另一端相连，所述调压腔活塞(6)包括两个，所述两个调压腔活塞(6)的中间设置有活塞推杆(15)，所述活塞推杆(15)设置在调压组件的中间。
  4. 根据权利要求3所述的一种车用前、后制动器制动力非线性分配感载阀，其特征在于：所述前侧的调压腔活塞(6)的前端设置有限位挡圈(16)，所述活塞(8)的后端设置有限位挡圈(16)。
  5. 根据权利要求4所述的一种车用前、后制动器制动力非线性分配感载阀，其特征在于：所述变刚度活动弹簧(10)的弹簧力-位移特性公式为F∝L2，其中F为变刚度活动弹簧(10)的弹簧力，L为变刚度活动弹簧(10)的位移。
  6. 根据权利要求1所述的一种车用前、后制动器制动力非线性分配感载阀，其特征在于：所述前调压腔(4)上设置有前进油孔(D)和前出油孔(E)，所述后调压腔(5)上设置有后进油孔(F)和后出油孔(G)，所述前进油孔(D)与汽车的制动阀前腔相通，所述后进油孔(F)与汽车的制动阀后腔相通，所述前出油孔(E)与汽车的前制动器制动缸相通，所述后出油孔(G)与汽车的后制动器制动缸相通。
  7. 根据权利要求6所述的一种车用前、后制动器制动力非线性分配感载阀，其特征在于：所述后调压腔(5)上还设置有卸压孔(H)，所述卸压孔(H)与汽车制动系统的低压油路相通。
PCT/CN2016/102113 2015-10-26 2016-10-14 一种车用前、后制动器制动力非线性分配感载阀 WO2017071484A1 (zh)

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