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CN107139673A - 电机式主动横向稳定杆 - Google Patents

电机式主动横向稳定杆 Download PDF

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CN107139673A
CN107139673A CN201611199667.4A CN201611199667A CN107139673A CN 107139673 A CN107139673 A CN 107139673A CN 201611199667 A CN201611199667 A CN 201611199667A CN 107139673 A CN107139673 A CN 107139673A
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transmission mechanism
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CN107139673B (zh
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皮大伟
李姣
王洪亮
王显会
王尔烈
孔振兴
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Nanjing University of Science and Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02Interconnection 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
    • B60G21/04Interconnection 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 mechanically
    • B60G21/05Interconnection 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 mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/055Stabiliser bars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient 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
    • B60G17/015Resilient 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 the regulating means comprising electric or electronic elements
    • B60G17/0152Resilient 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 the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B60G17/0157Resilient 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 the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit non-fluid unit, e.g. electric motor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient 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
    • B60G17/015Resilient 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 the regulating means comprising electric or electronic elements
    • B60G17/016Resilient 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 the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00Indexing codes relating to suspension types
    • B60G2200/30Rigid axle suspensions
    • B60G2200/34Stabilising mechanisms, e.g. for lateral stability
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10Mounting of suspension elements
    • B60G2204/14Mounting of suspension arms
    • B60G2204/143Mounting of suspension arms on the vehicle body or chassis
    • B60G2204/1431Mounting of suspension arms on the vehicle body or chassis of an L-shaped arm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/80Interactive suspensions; arrangement affecting more than one suspension unit
    • B60G2204/83Type of interconnection
    • B60G2204/8302Mechanical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/10Acceleration; Deceleration
    • B60G2400/104Acceleration; Deceleration lateral or transversal with regard to vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/20Speed
    • B60G2400/204Vehicle speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/40Steering conditions
    • B60G2400/41Steering angle
    • B60G2400/412Steering angle of steering wheel or column
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/18Automatic control means
    • B60G2600/182Active control means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/01Attitude or posture control
    • B60G2800/019Inclination due to load distribution or road gradient
    • B60G2800/0192Inclination due to load distribution or road gradient longitudinal with regard to vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/20Stationary vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/90System Controller type
    • B60G2800/91Suspension Control
    • B60G2800/912Attitude Control; levelling control
    • B60G2800/9122ARS - Anti-Roll System Control

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

本发明公开一种电机式主动横向稳定杆,包括L型左杆(1)、L型右杆(2)、传动机构(3)和电机(5),电机(5)通过联轴器(4)驱动传动机构(3)输出轴运动,所述右杆(2)左端固设有与传动机构(3)输出轴活动相连的下摆臂(21),所述传动机构(3)输出轴运动时,下摆臂(21)驱动右杆(2)的自由端摆动提供平衡力。本发明的电机式主动横向稳定杆,结构简单、成本低、维护安装方便。

Description

电机式主动横向稳定杆
技术领域
本发明属于车辆稳定杆技术领域,特别是一种结构简单、成本低、维护安装方便的电机式主动横向稳定杆装置。
背景技术
在汽车行驶中,侧翻是其中一种最为严重并且威胁乘员安全的事故。据调查显示,在世界范围内车辆侧翻事故占所有交通事故的40%。引起汽车侧翻的原因有两种:一种是由于路面上的障碍物侧向撞击将其“绊倒”引起的绊倒侧翻;另一种是曲线运动时横向加速度过大引起的侧翻。为了提高车辆抗侧倾性能,一般汽车上都安装有被动式横向稳定杆,来提高悬架系统的侧倾刚度,能使车辆在发生侧倾时,给车身施加一个反侧倾力矩,从而抑制侧倾。据调查,在路况差、急转弯的情况下,车上若装有横向稳定杆,它的侧翻概率降低60%~80%。
现有横向稳定杆如中国发明专利申请“横向稳定杆”(申请号:201110248371.8,公开日:2013.3.6)所述,通常包括杆体,杆体上设有卡环,卡环外设有限位筒和卡箍。然而这种横向稳定杆结构形式固定单一,刚度无法调节,不能很好的满足汽车在不同工况下行驶的要求。
主动式稳定杆系统是在传统横向稳定杆基础上的改进,它能实时地改变加在横向稳定杆两端的扭矩,主动、有效地实现对侧倾刚度的调整。目前用到的主动稳定杆有液压式和电机式两类。液压式主动稳定杆用液压缸作为作动器,虽能在一定程度内改善车辆的侧倾稳定性,但因其结构复杂、响应速度较慢,难以满足变化较大工况的需求。且活塞机构移动的位移有限,所以该系统比较适用于大型车辆。
电机式主动稳定杆以电机作为作动器,相对液压式主动稳定杆而言,其执行机构相对简单,易于控制,能根据不同的工况调整输出扭矩值,且能耗较小。如中国发明专利申请“车用电机式主动稳定杆”(申请号:201510568444.X,公开日:2015.12.02),其包括左稳定杆、右稳定杆、电机,还包括锁止机构和减速机构,所述左稳定杆与锁止机构相连,所述右稳定杆与电机的机壳相连,所述减速机构一端与电机相连,其另一端与锁止机构相连。通过电机驱动稳定杆的旋转方向与输出转矩,使稳定杆产生反侧倾力矩。
然而,上述主动稳定杆存在结构复杂、成本高、维护安装不便的问题。
发明内容
本发明的目的在于提供一种结构简单、成本低、维护安装方便的电机式主动横向稳定杆。
实现本发明目的的技术解决方案为:
一种电机式主动横向稳定杆,包括L型左杆、L型右杆、传动机构和电机,电机通过联轴器驱动传动机构输出轴运动,所述右杆左端固设有与传动机构输出轴活动相连的下摆臂,所述传动机构输出轴运动时,下摆臂驱动右杆的自由端摆动提供平衡力。
本发明与现有技术相比,其显著优点为:
1、结构简单:电机作动器和减速机构作为独立的机构,通过轴相连,无复杂的配合。
2、成本低:无复杂精密机构。
3、维护安装方便:采用一对啮合的锥齿轮减速器,锥齿轮能够承受高的负载,有降噪和减震,易于后期的维护,最重要的是可以实现两个垂直轴的传动,而且开式齿轮传动加工精度要求较低,安装方便,润滑要求较低。
下面结合附图和具体实施方式对本发明作进一步的详细描述。
附图说明
图1为本发明电机式主动横向稳定杆的结构示意图。
图2为图2中左右杆及套筒部分的结构示意图。
图3为图2中传动机构筒状外壳的结构示意图。
图4为图2中传动机构滚珠丝杆螺母的结构示意图。
图5为减速机构与电机和联轴器工作原理图。
图6为本发明电机式主动横向稳定杆的控制流程图。
图中,左杆1、右杆2、下摆臂21、连接孔22、传动机构3、筒状外壳31、滚珠丝杆螺母32、连接柱33、轴向槽34、联轴器4、电机5、套筒7、固定臂71、减速机构6。
具体实施方式
如图2所示,本发明电机式主动横向稳定杆,包括L型左杆1、L型右杆2、传动机构3和电机5,电机5通过联轴器4驱动传动机构3输出轴运动,所述右杆2左端固设有与传动机构3输出轴活动相连的下摆臂21,所述传动机构3输出轴运动时,下摆臂21驱动右杆2的自由端摆动提供平衡力。
如图2、3所示,还包括套筒7,所述左杆1插入套筒7右端,与套筒7固定相连,所述右杆2左端间隙配合地插入套筒7左端,其下摆臂21从套筒7下端的周向槽伸出,所述传动机构3包括与套筒7固定连接的筒状外壳31和可沿筒状外壳31内壁轴向运动的滚珠丝杆螺母32,所述滚珠丝杆螺母32的前端与右杆2下摆臂21活动端铰接,滚珠丝杆螺母32的后端与联轴器4相连。
当联轴器4与滚珠丝杆螺母32输出时,滚珠丝杆螺母32在传动机构3的筒状外壳31内前后移动,与之铰接下摆臂21则带动右杆2以套筒7轴线为轴摆动,从而提供平衡力。
如图3所示,作为优选方案,所述下摆臂21为相互平行的两个悬臂,悬臂头部开有连接孔22,如图4、5所示,所述滚珠丝杆螺母32前部左右两侧各有一连接柱33伸出筒状外壳31,所述连接孔22分别套装在靠近的连接柱33上形成铰接,所述筒状外壳31两侧开有供连接柱33前后运动的轴向槽34。
如图3所示,所述套筒7下部靠近两端的位置各固连一L型固定臂71,所述L型固定臂71的另一端与传动机构3的筒状外壳31固定连接。
如图5所示,在电机5与联轴器4之间设有减速机构6,所述减速机构6的输入端与电机5输出端相连,其输出端与联轴器4的输入端相连。
本发明的工作原理为:
电机通过输入轴将动力提供给减速机构的主动轮,主动轮带动从动轮转动。选定电机传动比为
在动力传递过程中,减速机构输出轴的动力为旋转动力,旋转动力通过联轴器传递给滚珠丝杆螺母,滚珠丝杆螺母将旋转动力转化为直线运动,伸出臂在壳体的滑槽中作直线运动,由于下摆臂嵌套在滚珠丝杆螺母的伸出臂上,滚珠丝杆螺母的直线运动带动下摆臂摆动。
由于下摆臂与右稳定杆固定连接,左稳定杆右端机构下端的通孔与滚珠丝杆壳体的伸出臂固连。当滚珠丝杆螺母作直线运动时,下摆臂前后摆动,而左稳定杆固定不动,左右稳定杆反方向扭转,产生方向相反的扭矩,提供给车身,抑制车身侧倾。
本发明的工作过程如图6所示,为:
通过传感器采集车速、转向角、侧倾角速度、横向加速度等信号,并输入电子控制系统ECU中,ECU对这些信号进行分析与处理,计算出前后轴所需的反侧倾力矩大小MARC
假设电机减速增扭后传递给稳定杆的扭矩为MT,则
MARC/MT=L/b (1)
其中,L为半杆长,b为稳定杆伸出臂长度。
电机提供的扭矩为M电机,整理可得
假设扭转刚度为Kφ,则给定的电机转角应为
根据计算,输出相应的控制量以控制电机的运转,电机输出转矩传递给前后轴稳定杆,使稳定杆产生相应的反侧倾力矩,从而抑制车身的侧倾。

Claims (5)

1.一种电机式主动横向稳定杆,包括L型左杆(1)、L型右杆(2)、传动机构(3)和电机(5),电机(5)通过联轴器(4)驱动传动机构(3)输出轴运动,其特征在于:
所述右杆(2)左端固设有与传动机构(3)输出轴活动相连的下摆臂(21),所述传动机构(3)输出轴运动时,下摆臂(21)驱动右杆(2)的自由端摆动提供平衡力。
2.根据权利要求1所述的横向稳定杆,其特征在于:
还包括套筒(7),所述左杆(1)插入套筒(7)右端,与套筒(7)固定相连,所述右杆(2)左端间隙配合地插入套筒(7)左端,其下摆臂(21)从套筒(7)下端的周向槽伸出。
所述传动机构(3)包括与套筒(7)固定连接的筒状外壳(31)和可沿筒状外壳(31)内壁轴向运动的滚珠丝杆螺母(32),所述滚珠丝杆螺母(32)的前端与右杆(2)下摆臂(21)活动端铰接,滚珠丝杆螺母(32)的后端与联轴器(4)相连。
3.根据权利要求2所述的横向稳定杆,其特征在于:
所述下摆臂(21)为相互平行的两个悬臂,悬臂头部开有连接孔(22),所述滚珠丝杆螺母(32)前部左右两侧各有一连接柱(33)伸出筒状外壳(31),所述连接孔(22)分别套装在靠近的连接柱(33)上形成铰接,所述筒状外壳(31)两侧开有供连接柱(33)前后运动的轴向槽(34)。
4.根据权利要求2所述的横向稳定杆,其特征在于:
所述套筒(7)下部靠近两端的位置各固连一L型固定臂(71),所述L型固定臂(71)的另一端与传动机构(3)的筒状外壳(31)固定连接。
5.根据权利要求1至4之一所述的横向稳定杆,其特征在于:
在电机(5)与联轴器(4)之间设有减速机构(6),所述减速机构(6)的输入端与电机(5)输出端相连,其输出端与联轴器(4)的输入端相连。
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CN114132138B (zh) * 2021-12-20 2023-10-27 中国第一汽车股份有限公司 一种主动抗侧倾机构及车辆

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