WO2020077728A1 - 车体主动平衡系统 - Google Patents

车体主动平衡系统 Download PDF

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Publication number
WO2020077728A1
WO2020077728A1 PCT/CN2018/116297 CN2018116297W WO2020077728A1 WO 2020077728 A1 WO2020077728 A1 WO 2020077728A1 CN 2018116297 W CN2018116297 W CN 2018116297W WO 2020077728 A1 WO2020077728 A1 WO 2020077728A1
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WIPO (PCT)
Prior art keywords
oil
vehicle body
balancing system
active balancing
return line
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Application number
PCT/CN2018/116297
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English (en)
French (fr)
Inventor
池君臣
李勇
陈俊虎
张飞
弓康
黄汉军
肖鹏
梅书平
Original Assignee
湖北火鑫消防车辆装备有限公司
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Publication of WO2020077728A1 publication Critical patent/WO2020077728A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
    • B60G17/08—Characteristics of fluid dampers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/06—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid
    • B60G21/067—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on different axles on the same side of the vehicle, i.e. the left or the right side
    • 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
    • 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
    • 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
    • F16F13/262—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 changing geometry of passages between working and equilibration chambers, e.g. cross-sectional area or length
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/20—Type of damper
    • B60G2202/24—Fluid damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/30—Height or ground clearance
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/12—Fluid damping
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/0011—Balancing, e.g. counterbalancing to produce static balance
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/06—Fluid filling or discharging

Definitions

  • the invention belongs to the field of vehicle balancing devices, in particular, it is a vehicle body active balancing system.
  • the vehicle travels through wheels. Due to the different road conditions, the reaction force received by each vehicle and the bottom surface during driving will be different, and bumps are prone to occur. happening.
  • each damping is an independent structure, and the length of the damping is a fixed value in a free state, and cannot be actively adjusted.
  • the purpose of the present invention is to provide a vehicle body active balancing system that overcomes the deficiencies in the prior art.
  • a vehicle body active balancing system includes at least two support units for supporting a variable volume between the vehicle body and wheels and an oil supply mechanism for supplying oil to each support unit, each support unit is provided in parallel;
  • the oil supply mechanism is used to supply the medium to each support unit, and the support unit is extended by supplying the medium.
  • the oil supply mechanism is used to supply medium such as hydraulic oil into the support unit, and the medium is supplied to extend the length of the support unit; when one or more wheels are vacated while the vehicle is running, the Supply oil to each support unit through the oil supply mechanism to extend the length of the support unit and push the wheels away from the vehicle body through the extension of the support unit to bring the wheels closer to the road surface, reduce the height difference between the wheels and the road surface when the wheels fall back, and reduce the impact of landing after the flight; At the same time, when one or more wheels are in a suspended state, the length of the support unit can also extend the length of the support unit to make the suspension wheel contact with the road surface, so that the suspension wheel is free from the suspension state.
  • medium such as hydraulic oil into the support unit
  • the support unit includes a shock absorbing body and an oil chamber.
  • the oil chamber is sleeved on the end of the shock absorbing body hydraulic cylinder.
  • the outer wall of the shock absorbing body hydraulic cylinder is tightly connected to the oil chamber wall.
  • the bottom of the oil chamber passes The pipeline is connected to the oil supply mechanism.
  • Oil is supplied into the oil chamber through the oil supply mechanism, and the shock absorbing body is pushed out to adjust the length of the support unit.
  • the oil supply mechanism includes an oil storage tank and an oil pump, an oil inlet of the oil pump is connected below the liquid level of the oil storage tank, and an oil outlet of the oil pump is in communication with each support unit connected in parallel.
  • the support units are arranged in parallel, and the parallel arrangement is convenient for controlling the support units separately.
  • an electromagnetic sub-control valve is provided on the front pipeline of each of the oil chamber outlets in parallel.
  • the electromagnetic sub-control valve corresponding to each oil chamber is normally closed, which is convenient for supplying hydraulic oil to the oil chamber of each support unit.
  • an electromagnetic main control valve is provided on the outlet pipe of the oil pump.
  • the oil output of the oil pump can be controlled by setting the electromagnetic main control valve, and the oil output of the oil pump can be controlled by the electromagnetic main control valve.
  • an oil return line is connected between each outlet of the oil chamber and the sub-control valve and communicates with the oil storage tank through the oil return line, and a shunt pressure relief valve is provided on the oil return line.
  • the oil return line is provided to facilitate the return of hydraulic oil in the oil chamber into the oil storage tank, and the branch pressure relief valve on the oil return line is normally closed, which can prevent the pressure of the oil path from being supplied by the oil pump and facilitate the pressure relief of each oil chamber And through the pressure relief to restore the length of the support unit.
  • the oil outlet of the oil pump is connected with an oil return line and communicates with an oil storage tank through the oil return line, and a main pressure relief valve is provided on the oil return line.
  • the oil outlet of the oil pump is connected to the oil storage tank through the oil return line and a main pressure relief valve is provided on the oil return line.
  • the main pressure relief valve is normally open. After the oil pump pumps out the oil, the oil return line returns to the oil storage tank. When it is necessary to supply oil to an oil chamber of a supporting unit, the main pressure relief valve is closed and the corresponding electromagnetic sub-control valve is opened to supply oil to the corresponding oil chamber of the supporting unit.
  • the electromagnetic sub-control valve is a one-way valve.
  • the electromagnetic sub-control valve is a one-way valve and opens to the side of the oil chamber, which can effectively prevent the pressure in the oil chamber from sitting back.
  • the bottom of the oil chamber is fixedly provided with a buffer block.
  • the buffer block can be made of flexible materials such as rubber, which can effectively prevent damage caused by rigid collision between the bottom of the oil chamber and the shock absorbing body.
  • the shunt pressure relief valve is connected in parallel with a single pressure limiting valve.
  • the single-stage pressure limiting valve can assist the shunt pressure relief valve to return oil, and when the shunt pressure relief valve fails, the hydraulic pressure in the oil chamber can be normally released under the pressure of the vehicle body.
  • the present invention can reduce the difference between the height of the wheel falling after being emptied and the road surface, and reduce the impact of the landing after being emptied.
  • the length of the support unit can also be used
  • the dangling wheel is in contact with the road surface to make the dangling wheel out of the dangling state.
  • FIG. 1 is a schematic structural diagram of an active balancing system of a vehicle body of the present invention
  • FIG. 2 is a schematic diagram of the installation structure of the present invention in an independent suspension application
  • FIG. 3 is a schematic view of the installation structure of the present invention in the application of torsion beam suspension
  • FIG. 4 is a schematic diagram of the installation structure of the present invention in the rear axle application
  • Support unit 100 shock absorber body 110, oil chamber 120, oil supply mechanism 200, oil storage tank 210, oil pump 220, electromagnetic sub-control valve 230, electromagnetic main control valve 240, shunt relief valve 250, main relief valve 260 ⁇ Single pressure limiting valve 270, buffer block 300.
  • a vehicle body active balancing system includes at least two support units for supporting a variable volume between the vehicle body and wheels and an oil supply mechanism 200 for supplying oil to each support unit, each The support units are arranged in parallel; the oil supply mechanism 200 is used to supply medium to each support unit, and the support unit is extended by supplying the medium.
  • the support unit includes a shock absorbing body 110 and an oil chamber 120.
  • the oil chamber 120 is sleeved on the end of the hydraulic cylinder of the shock absorbing body 110.
  • the outer wall of the hydraulic cylinder of the shock absorbing body 110 is tightly connected to the inner wall of the oil chamber 120.
  • the oil The bottom of the chamber 120 is connected to the oil supply mechanism 200 through a pipeline.
  • the oil supply mechanism 200 includes an oil storage tank 210 and an oil pump 220.
  • the oil inlet of the oil pump 220 communicates with the oil storage tank 210 below the liquid level.
  • the oil outlet of the oil pump 220 communicates with each support unit connected in parallel.
  • An electromagnetic sub-control valve 230 is provided on the pipeline before each outlet of the oil chamber 120 is connected in parallel.
  • An electromagnetic main control valve 240 is provided on the outlet pipeline of the oil pump 220.
  • An oil return line is connected between the outlet of each of the oil chambers 120 and the branch control valve and communicates with the oil storage tank 210 through the oil return line.
  • a shunt pressure relief valve 250 is provided on the oil return line.
  • An oil return line is connected to the oil outlet of the oil pump 220 and communicates with the oil storage tank 210 through the oil return line.
  • the main line pressure relief valve 260 is provided on the oil return line.
  • the electromagnetic sub-control valve 230 is a one-way valve.
  • a buffer block 300 is fixedly arranged at the bottom of the oil chamber 120.
  • the oil supply mechanism 200 is used to supply medium such as hydraulic oil into the support unit, and the medium is supplied to extend the length of the support unit; when one or more wheels are vacated while the vehicle is running, it will pass
  • the oil supply mechanism 200 supplies oil to each support unit to extend the length of the support unit and push the wheels away from the vehicle body through the extension of the support unit to bring the wheels closer to the road surface, reduce the height difference between the wheels and the road surface when the wheels fall back, and reduce the impact of the landing after the flight;
  • the length of the support unit can also extend the length of the support unit to make the suspension wheel contact with the road surface, so that the suspension wheel is free from the suspension state.
  • the oil supply mechanism 200 supplies oil into the oil chamber 120 to push the shock absorbing body 110 outward to adjust the length of the support unit.
  • the support units are arranged in parallel, and the parallel arrangement is convenient for controlling the support units separately.
  • the electromagnetic sub-control valve 230 By controlling the electromagnetic sub-control valve 230 to control the opening and closing state of the individual pipelines of each oil chamber 120, the electromagnetic sub-control valve 230 corresponding to each oil chamber 120 is normally closed, which facilitates the supply of hydraulic pressure to the oil chamber 120 of each support unit oil.
  • the electromagnetic main control valve 240 By providing the electromagnetic main control valve 240, the oil output of the oil pump 220 can be controlled, and the electromagnetic main control valve 240 can control the oil output of the oil pump 220.
  • the oil return line is provided to facilitate the return of the hydraulic oil in the oil chamber 120 into the oil storage tank 210, and the shunt pressure relief valve 250 on the oil return line is normally closed, which can prevent the oil path 220 from releasing pressure when the oil is supplied by the oil pump 220.
  • Each oil chamber 120 is relieved of pressure and the length of the support unit is restored by the pressure relief.
  • the oil outlet of the oil pump 220 is connected to the oil storage tank 210 through an oil return line and a main pressure relief valve 260 is provided on the oil return line.
  • the main pressure relief valve 260 is normally open.
  • the oil pump 220 returns the oil return line after returning the oil pump 220
  • the main pressure relief valve 260 is closed to open the corresponding electromagnetic sub-control valve 230, and the corresponding support unit oil chamber 120 is supplied with oil.
  • the electromagnetic sub-control valve 230 is a one-way valve and opens to the oil chamber 120 side, which can effectively prevent the pressure in the oil chamber 120 from sitting back.
  • the buffer block 300 may be made of a flexible material such as rubber, which can effectively prevent damage caused by a rigid collision between the bottom of the oil chamber 120 and the shock absorbing body 110.
  • a single-stage pressure limiting valve 270 is connected in parallel with the shunt pressure relief valve 250. The single-stage pressure limiting valve 270 can assist the shunt pressure relief valve 250 to return oil, and when the shunt pressure relief valve 250 fails, the hydraulic pressure in the oil chamber 120 can be normally released under the pressure of the vehicle body.
  • FIGs 2, 3, and 4 are schematic diagrams of the installation structure of the design in the independent suspension system, torsion beam suspension system, and rear axle, respectively.
  • the present invention reduces the difference between the height of the wheel after falling and the road surface, and reduces the impact after landing; at the same time, when one or more wheels are in the cradle suspension state, the suspension can also be suspended by extending the length of the support unit The wheel is in contact with the road surface, so that the suspended wheel is out of the suspended state.

Abstract

一种车体主动平衡系统，属于车辆平衡装置领域，它包括至少两个用于支撑车体与车轮之间的容积可变的支撑单元和向各个支撑单元供油的供油机构（200），各个支撑单元并联设置；供油机构（200）用于分别向各个支撑单元供入介质，且通过供入介质使支撑单元延伸。该车体主动平衡系统能够降低车轮腾空后回落与路面的高度差，降低腾空后落地冲击；同时，当某一轮或多轮处于陷坑悬空状态时，通过延伸支撑单元的长度也可以使悬空轮与路面接触，使悬空轮脱离悬空状态。

Description

车体主动平衡系统 技术领域
本发明属于车辆平衡装置领域，具体来说，是一种车体主动平衡系统。
背景技术
车辆通过车轮行驶，行驶过程中各个车辆与底面之间由于路况不同，其所受到的反作用力也将不同，易出现颠簸，为此，各个车轮均设置减震，降低车体在行驶过程中的颠簸情况。
但是，目前的减震系统中各个减震均为独立结构，且减震的长度为在自由状态下固定值，不能主动进行调节。
发明内容
本发明目的是旨在提供一种克服现有技术中不足的车体主动平衡系统。
为实现上述技术目的，本发明采用的技术方案如下：
一种车体主动平衡系统，包括至少两个用于支撑车体与车轮之间的容积可变的支撑单元和向各个支撑单元供油的供油机构，各个所述支撑单元并联设置；所述供油机构用于分别向各个支撑单元供入介质，且通过供入介质使支撑单元延伸。
采用上述技术方案的发明，供油机构用于将液压油等介质供入支撑单元内，且通过介质供入以延伸支撑单元的长度；当车辆行驶过程中某一轮或多轮腾空时，将通过供油机构向各个支撑单元供油，使支撑单元延伸长度且通过支撑单元延伸将车轮推离车体，使车轮向路面靠近，降低车轮回落时与路面的高度差，降低腾空后落地冲击；同时，当某一轮或多轮处于陷坑悬空状态使，通过延伸支撑单元的长度也可以使悬空轮与路面接触，使悬空轮脱离悬空状态。
进一步限定，所述支撑单元包括减震本体和油室，所述油室套于减震本体液压缸端部，所述减震本体液压缸外壁与油室内壁密闭连接，所述油室底部通过管路连接供油机构。
通过供油机构向油室内供油，将减震本体向外推出以调节支撑单元的长度。
进一步限定，所述供油机构包括储油箱和油泵，所述油泵进油端连通储油箱液面以下，所述油泵出油端与并联后的各个支撑单元连通。
各个支撑单元并联设置，并联设置便于将各个支撑单元分别控制。
进一步限定，各个所述油室出口并联前管路上均设置有电磁分控阀。
通过控制电磁分控阀控制各个油室独立管路的开合状态，各个油室对应的电磁分控阀为常闭状态，便于分别向各个支撑单元的油室内供入液压油。
进一步限定，所述油泵出口管路上设置有电磁主控阀。
通过设置电磁主控阀能够将油泵的出油进行控制，通过电磁主控阀控制油泵的出油量。
进一步限定，各个所述油室出口与分控阀之间连接有回油管路且通过回油管路连通储油箱，所述回油管路上设置有分路泄压阀。
设置回油管路便于将油室内的液压油回流入储油箱内，且回油管路上的分路泄压阀为常闭状态，能够防止油泵供油时油路泄压，且便于各个油室泄压且通过泄压使支撑单元长度回复。
进一步限定，所述油泵出油端连接有回油管路且通过回油管路连通储油箱，所述回油管路上设置有主路泄压阀。
油泵出油端通过回油管路连接储油箱且在回油管路上设置主路泄压阀，主路泄压阀为常开状态，油泵将油泵出后将油回油管路回流至储油箱内，当需要向某一支撑单元的油室供油时将关闭主路泄压阀打开对应的电磁分控阀，向对应的支撑单元油室供油。
进一步限定，所述电磁分控阀为单向阀。
电磁分控阀为单向阀且向油室一侧打开，能够有效防止油室内压力回坐。
进一步限定，所述油室底部固定设置有缓冲块。
缓冲块可以由橡胶等柔性材质制成，能够有效防止油室底部与减震本体之间刚性碰撞造成损坏。
进一步限定，所述分路泄压阀并联有单项限压阀。
单项限压阀能够辅助分路泄压阀回油，且当分路泄压阀出现故障后，油室内的液压有在车体的挤压下能够正常泄压。
本发明相比现有技术，能够降低车轮腾空后回落与路面的高度差，降低腾空后落地冲击；同时，当某一轮或多轮处于陷坑悬空状态使，通过延伸支撑单元的长度也可以使悬空轮与路面接触，使悬空轮脱离悬空状态。
附图说明
本发明可以通过附图给出的非限定性实施例进一步说明；
图1为本发明车体主动平衡系统的结构示意图；
图2为本发明在独立悬挂应用中的安装结构示意图；
图3为本发明在扭力梁悬挂应用中的安装结构示意图；
图4为本发明在后桥应用中的安装结构示意图；
主要元件符号说明如下：
支持单元100、减震本体110、油室120、供油机构200、储油箱210、油泵220、电磁分控阀230、电磁主控阀240、分路泄压阀250、主路泄压阀260、单项限压阀270、缓冲块300。
具体实施方式
为了使本领域的技术人员可以更好地理解本发明，下面结合附图和实施例对本发明技术方案进一步说明。
如图1所示，一种车体主动平衡系统，包括至少两个用于支撑车体与车轮之间的容积可变的支撑单元和向各个支撑单元供油的供油机构200，各个所述支撑单元并联设置；所述供油机构200用于分别向各个支撑单元供入介质，且通过供入介质使支撑单元延伸。所述支撑单元包括减震本体110和油室120，所述油室120套于减震本体110液压缸端部，所述减震本体110液压缸外壁与油室120内壁密闭连接，所述油室120底部通过管路连接供油机构200。所述供油机构200包括储油箱210和油泵220，所述油泵220进油端连通储油箱210液面以下，所述油泵220出油端与并联后的各个支撑单元连通。各个所述油室120出口并联前管路上均设置有电磁分控阀230。所述油泵220出口管路上设置有电磁主控阀240。各个所述油室120出口与分控阀之间连接有回油管路且通过回油管路连通储油箱210，所述回油管路上设置有分路泄压阀250。所述油泵220出油端连接有回油管路且通过回油管路连通储油箱210，所述回油管路上设置有主路泄压阀260。所述电磁分控阀230为单向阀。所述油室120底部固定设置有缓冲块300。
本实施例中，供油机构200用于将液压油等介质供入支撑单元内，且通过介质供入以延伸支撑单元的长度；当车辆行驶过程中某一轮或多轮腾空时，将通过供油机构200向各个支撑单元供油，使支撑单元延伸长度且通过支撑单元延伸将车轮推离车体，使车轮向路面靠近，降低车轮回落时与路面的高度差，降低腾空后落地冲击；同时，当某一轮或多轮处于陷坑悬空状态使，通过延伸支撑单元的长度也可以使悬空轮与路面接触，使悬空轮脱离悬空状态。通过供油机构200向油室120内供油，将减震本体110向外推出以调节支撑单元的长度。各个支撑单元并联设置，并联设置便于将各个支撑单元分别控制。通过控制电磁分控阀230控制各个油室120独立管路的开合状态，各个油室120对应的电磁分控阀230为常闭状态，便于分别向各个支撑单元的油室120内供入液压油。通过设置电磁主控阀240能够将油泵220的出油进行控制，通过电磁主控阀240控制油泵220的出油量。设置回油管路便于将油室120内的液压油回流入储油箱210内，且回油管路上的分路泄压阀250为常闭状态，能够防止油 泵220供油时油路泄压，且便于各个油室120泄压且通过泄压使支撑单元长度回复。油泵220出油端通过回油管路连接储油箱210且在回油管路上设置主路泄压阀260，主路泄压阀260为常开状态，油泵220将油泵220出后将油回油管路回流至储油箱210内，当需要向某一支撑单元的油室120供油时将关闭主路泄压阀260打开对应的电磁分控阀230，向对应的支撑单元油室120供油。电磁分控阀230为单向阀且向油室120一侧打开，能够有效防止油室120内压力回坐。缓冲块300可以由橡胶等柔性材质制成，能够有效防止油室120底部与减震本体110之间刚性碰撞造成损坏。所述分路泄压阀250并联有单项限压阀270。单项限压阀270能够辅助分路泄压阀250回油，且当分路泄压阀250出现故障后，油室120内的液压有在车体的挤压下能够正常泄压。
图2、图3、图4分别为本设计方案在独立悬挂系统、扭力梁悬挂系统和后桥中的安装结构示意图。
本发明相比现有技术，降低车轮腾空后回落与路面的高度差，降低腾空后落地冲击；同时，当某一轮或多轮处于陷坑悬空状态使，通过延伸支撑单元的长度也可以使悬空轮与路面接触，使悬空轮脱离悬空状态。
以上对本发明提供的车体主动平衡系统进行了详细介绍。具体实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种车体主动平衡系统，其特征在于：包括至少两个用于支撑车体与车轮之间的容积可变的支撑单元和向各个支撑单元供油的供油机构，各个所述支撑单元并联设置；所述供油机构用于分别向各个支撑单元供入介质，且通过供入介质使支撑单元延伸。
  2. 根据权利要求1所述的车体主动平衡系统，其特征在于：所述支撑单元包括减震本体和油室，所述油室套于减震本体液压缸端部，所述减震本体液压缸外壁与油室内壁密闭连接，所述油室底部通过管路连接供油机构。
  3. 根据权利要求2所述的车体主动平衡系统，其特征在于：所述供油机构包括储油箱和油泵，所述油泵进油端连通储油箱液面以下，所述油泵出油端与并联后的各个支撑单元连通。
  4. 根据权利要求3所述的车体主动平衡系统，其特征在于：各个所述油室出口并联前管路上均设置有电磁分控阀。
  5. 根据权利要求3所述的车体主动平衡系统，其特征在于：所述油泵出口管路上设置有电磁主控阀。
  6. 根据权利要求4所述的车体主动平衡系统，其特征在于：各个所述油室出口与电磁分控阀之间连接有回油管路且通过回油管路连通储油箱，所述回油管路上设置有分路泄压阀。
  7. 根据权利要求5所述的车体主动平衡系统，其特征在于：所述油泵出油端连接有回油管路且通过回油管路连通储油箱，所述回油管路上设置有主路泄压阀。
  8. 根据权利要求6所述的车体主动平衡系统，其特征在于：所述电磁分控阀为单向阀。
  9. 根据权利要求2至8任一项所述的车体主动平衡系统，其特征在于：所述油室底部固定设置有缓冲块。
  10. 根据权利要求9所述的车体主动平衡系统，其特征在于：所述分路泄压阀并联有单项限压阀。
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