CN113173044A - 一种车身稳定***、防侧撞*** - Google Patents

一种车身稳定***、防侧撞*** Download PDF

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CN113173044A
CN113173044A CN202110638435.9A CN202110638435A CN113173044A CN 113173044 A CN113173044 A CN 113173044A CN 202110638435 A CN202110638435 A CN 202110638435A CN 113173044 A CN113173044 A CN 113173044A
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vehicle
control unit
suspension
wheel
sensor
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卢明宇
金会庆
凤鹏飞
李茹婷
肖文妮
唐志华
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Anhui Sanlian University
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Anhui Sanlian University
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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
    • B60G17/015—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 the regulating means comprising electric or electronic elements
    • B60G17/0152—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 the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B60G17/0157—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 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
    • 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
    • B60G17/015—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 the regulating means comprising electric or electronic elements
    • B60G17/016—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 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
    • B60G17/0162—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 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 mainly during a motion involving steering operation, e.g. cornering, overtaking
    • 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
    • B60G17/015—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 the regulating means comprising electric or electronic elements
    • B60G17/019—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 the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • 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
    • B60G17/015—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 the regulating means comprising electric or electronic elements
    • B60G17/019—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 the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B60G17/01908—Acceleration or inclination sensors
    • 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
    • B60G17/015—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 the regulating means comprising electric or electronic elements
    • B60G17/019—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 the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B60G17/01933—Velocity, e.g. relative velocity-displacement sensors
    • 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
    • B60G17/015—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 the regulating means comprising electric or electronic elements
    • B60G17/0195—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 the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems

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

Abstract

本发明涉及汽车驾驶辅助领域，特别涉及一种车身稳定***、防侧撞***。车身稳定***包括控制单元和与控制单元连接的ESP***、悬挂***、传感器单元；***包括以下工作步骤：S1、控制单元获取车辆行驶信息；S2、对信息进行分类处理获取车辆行驶状态；S3、针对车辆行驶状态控制单元对悬挂高度做出调整。本发明的有益效果在于：通过控制悬挂***调整悬挂高度改变车辆重心从而调整车轮的压力分配，同时配合ESP***解决汽车在转向时出现的转向不足或转向过度的问题。

Description

一种车身稳定***、防侧撞***
技术领域
本发明涉及汽车驾驶辅助领域，特别涉及一种车身稳定***、防侧撞***。
背景技术
随着社会经济的发展和人民生活水平的日益提高，汽车开始在国内普及截止到2020年中国汽车的保有量超过了3.8亿辆。汽车保有量的增多带来的不仅是出行的方便同时带来的是每年增长的车辆事故。这些事故中因车辆打滑或操作不当发生侧滑或翻车所导致的事故占了很大的比例，针对上述问题，在1995年博世公司推出了ESP***用于维持车辆的稳定，但是单单使用ESP***的车辆在转向时依旧会出现制动力不足所导致的车辆侧滑现象，同时单单使用ESP***的车辆在遇到结冰湿滑路面时会降低发动机扭矩导致通过更加困难。
发明内容
为了解决背景技术中的不足，本发明提供了一种车身稳定***、防侧撞***，具体方案如下：
一种车身稳定***包括控制单元和与控制单元连接的ESP***、悬挂***、传感器单元；***包括以下工作步骤：
S1、控制单元获取车辆行驶信息；
S2、对信息进行分类处理获取车辆行驶状态；
S3、针对车辆行驶状态控制单元对悬挂高度做出调整。
具体地说，所述悬挂***包括分别与控制单元连接的空气弹簧减振器、蓄压气缸、供气总成、泄压器；所述供气总成、空气弹簧减振器、蓄压气缸相互连接，泄压器连接空气弹簧减振器的排气口。
具体地说，所述传感器单元包括高度传感器、转向传感器、车轮转速传感器、纵向加速度传感器、横向加速度传感器；高度传感器安装在车轮拱罩上，转向传感器安装在方向盘上，车轮转速传感器安装在车轮上，纵向加速度传感器、横向加速度传感器安装在车辆重心处。
具体地说，步骤S2所述车辆行驶状态包括转向不足、转向过度、车轮打滑、正常行驶。
具体地说，步骤S3具体为：
当车辆转向不足时，ESP***介入向转弯内侧后车轮施加制动力，控制单元控制悬挂***调整悬挂高度，使车辆重心偏向转弯内侧后车轮；
当车辆转向过度时，ESP***介入向转弯外侧后车轮施加制动力，控制单元控制悬挂***调整悬挂高度，使车辆重心偏向转弯外侧后车轮；
当车轮打滑时，控制单元控制悬挂***调整悬挂高度，使车辆重心偏向打滑的车轮；
当车辆正常行驶时，悬挂高度采用***默认高度。
具体地说，还包括连接到控制单元的人机交互单元，用于设置悬挂***的高度。
包括上述车身稳定***的防侧撞***，包括碰撞预警单元，所述碰撞预警单元与控制单元连接。
具体地说，所述碰撞预警单元包括预警芯片和安装在车身两侧的雷达。
具体地说，***包括以下工作步骤：
A1、雷达发射并接受反射雷达波信号；
A2、预警芯片计算车辆侧方物体与车辆的距离和物体沿车辆侧面的速度；
A3、当速度和距离超过阈值后碰撞预警单元向控制单元发送碰撞预警信号；
A4、控制单元接收碰撞预警信号后，控制悬挂***调整悬挂高度。
具体地说，步骤A4具体为调整车辆两侧悬挂高度使车辆向相对于碰撞预警的一侧倾斜。
本发明的有益效果在于：
(1)通过控制悬挂***调整悬挂高度改变车辆重心从而调整每个车轮的压力分配同时配合ESP***解决汽车在转向时出现的转向不足或转向过度的问题。
(2)通过改变车轮的悬挂高度，似的车辆重心偏向打滑的车轮来增大打滑的车轮的压力解决车辆车轮打滑的问题。
(3)通过设置蓄压气缸蓄压和泄压器快速泄压可以提高悬挂的调整速度。
(4)通过人机交互单元，驾驶人可自行设置悬挂高度以达到行驶舒适的目的。
(5)当雷达检测到碰撞即将发生时，通过调整悬挂高度，以车辆相对刚性更强的车辆下框架来抵御撞击，最大化的保护了车内乘客的生命安全。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为车身稳定***示意图；
图2为悬挂***示意图；
图3为防侧撞***示意图。
图中标识具体为：
1、控制单元；2、传感器单元；3、悬挂***；4、ESP***；31、供气总成；32、空气弹簧减振器；33、蓄压气缸；34、泄压器；5、预警芯片；6、雷达。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地说明，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
本发明公开了一种车身稳定***、防侧撞***，包括：
如图1所示，一种车身稳定***，包括：控制单元1和与控制单元1连接的ESP***4、悬挂***3、传感器单元2；***包括以下工作步骤：
S1、控制单元1获取车辆行驶信息；
S2、对信息进行分类处理获取车辆行驶状态；
S3、针对车辆行驶状态控制单元1对悬挂高度做出调整。
如图2所示，所述悬挂***3包括分别与控制单元1连接的空气弹簧减振器32、蓄压气缸33、供气总成31、泄压器34；所述供气总成31、空气弹簧减振器32、蓄压气缸33相互连接，泄压器34连接空气弹簧减振器32的排气口。
所述空气弹簧减振器32对应一个蓄压气缸33和一个泄压器34，独立设置的蓄压气缸33和泄压器34可以实现对每个轮胎悬挂高度的精准快速调整。
所述传感器单元2包括高度传感器、转向传感器、车轮转速传感器、纵向加速度传感器、横向加速度传感器；高度传感器安装在车轮拱罩上，转向传感器安装在方向盘上，车轮转速传感器安装在车轮上，纵向加速度传感器、横向加速度传感器安装在车辆重心处。
步骤S2所述车辆行驶状态包括转向不足、转向过度、车轮打滑、正常行驶。
步骤S3具体为：
当车辆转向不足时，ESP***4介入向转弯内侧后车轮施加制动力，控制单元1控制悬挂***3调整悬挂高度，使车辆重心偏向转弯内侧后车轮；
当车辆转向过度时，ESP***4介入向转弯外侧后车轮施加制动力，控制单元1控制悬挂***3调整悬挂高度，使车辆重心偏向转弯外侧后车轮；
当车轮打滑时，控制单元1控制悬挂***3调整悬挂高度，使车辆重心偏向打滑的车轮；
当车辆正常行驶时，悬挂高度采用***默认高度。
还包括连接到控制单元1的人机交互单元，用于设置悬挂***3。
如图3所示，包括上述车身稳定***的防侧撞***，还包括碰撞预警单元，所述碰撞预警单元与控制单元1连接。
所述碰撞预警单元包括预警芯片5和安装在车身两侧的雷达6。
所述***包括以下工作步骤：
A1、雷达6发射并接受反射雷达6波信号；
A2、预警芯片5计算车辆侧方物体与车辆的距离和物体沿车辆侧面的速度；
A3、当速度和距离超过阈值后碰撞预警单元向控制单元1发送碰撞预警信号；
A4、控制单元1接收碰撞预警信号后，控制悬挂***3调整悬挂高度。
步骤A4具体为调整车辆两侧悬挂高度使车辆向相对于碰撞预警的一侧倾斜。
尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (10)

1.一种车身稳定***，其特征在于，包括控制单元(1)和与控制单元(1)连接的ESP***(4)、悬挂***(3)、传感器单元(2)；***包括以下工作步骤：
S1、控制单元(1)获取车辆行驶信息；
S2、对信息进行分类处理获取车辆行驶状态；
S3、针对车辆行驶状态控制单元(1)对悬挂高度做出调整。
2.根据权利要求1所述的一种车身稳定***，其特征在于，所述悬挂***(3)包括分别与控制单元(1)连接的空气弹簧减振器(32)、蓄压气缸(33)、供气总成(31)、泄压器(34)；所述供气总成(31)分别与空气弹簧减振器(32)、蓄压气缸(33)连接，所述空气弹簧减振器(32)与蓄压气缸(33)连接，泄压器(34)连接空气弹簧减振器(32)的排气口。
3.根据权利要求1所述的一种车身稳定***，其特征在于，所述传感器单元(2)包括高度传感器、转向传感器、车轮转速传感器、纵向加速度传感器、横向加速度传感器；高度传感器安装在车轮拱罩上，转向传感器安装在方向盘上，车轮转速传感器安装在车轮上，纵向加速度传感器、横向加速度传感器安装在车辆重心处。
4.根据权利要求1所述的一种车身稳定***，其特征在于，步骤S2所述车辆行驶状态包括转向不足、转向过度、车轮打滑、正常行驶。
5.根据权利要求1所述的一种车身稳定***，其特征在于，步骤S3具体为：
当车辆转向不足时，ESP***(4)介入向转弯内侧后车轮施加制动力，控制单元(1)控制悬挂***(3)调整悬挂高度，使车辆重心偏向转弯内侧后车轮；
当车辆转向过度时，ESP***(4)介入向转弯外侧后车轮施加制动力，控制单元(1)控制悬挂***(3)调整悬挂高度，使车辆重心偏向转弯外侧后车轮；
当车轮打滑时，控制单元(1)控制悬挂***(3)调整悬挂高度，使车辆重心偏向打滑的车轮；
当车辆正常行驶时，悬挂高度采用***默认高度。
6.根据权利要求1所述的一种车身稳定***，其特征在于，还包括连接到控制单元(1)的人机交互单元，用于设置悬挂***(3)的高度。
7.包括权利要求1-6所述的一种车身稳定***的防侧撞***，其特征在于，包括碰撞预警单元，所述碰撞预警单元与控制单元(1)连接。
8.根据权利要求7所述的防侧撞***，其特征在于，所述碰撞预警单元包括预警芯片(5)和安装在车身两侧的雷达(6)。
9.根据权利要求8所述的防侧撞***，其特征在于，***包括以下工作步骤：
A1、雷达(6)发射并接受反射雷达(6)波信号；
A2、预警芯片(5)计算车辆侧方物体与车辆的距离和物体沿车辆侧面的速度；
A3、当速度和距离超过阈值后碰撞预警单元向控制单元(1)发送碰撞预警信号；
A4、控制单元(1)接收碰撞预警信号后，控制悬挂***(3)调整悬挂高度。
10.根据权利要求9所述的防侧撞***，其特征在于，步骤A4具体为调整车辆两侧悬挂高度使车辆向相对于碰撞预警的一侧倾斜。
CN202110638435.9A 2021-06-08 2021-06-08 一种车身稳定***、防侧撞*** Pending CN113173044A (zh)

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