CN102317129A - 用于利用集成的避免倾翻的功能稳定车辆的方法 - Google Patents
用于利用集成的避免倾翻的功能稳定车辆的方法 Download PDFInfo
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- CN102317129A CN102317129A CN2009801568368A CN200980156836A CN102317129A CN 102317129 A CN102317129 A CN 102317129A CN 2009801568368 A CN2009801568368 A CN 2009801568368A CN 200980156836 A CN200980156836 A CN 200980156836A CN 102317129 A CN102317129 A CN 102317129A
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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
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
-
- 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
- B60T8/24—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle inclination or change of direction, e.g. negotiating bends
- B60T8/241—Lateral vehicle inclination
- B60T8/243—Lateral vehicle inclination for roll-over protection
-
- 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
- B60T2230/00—Monitoring, detecting special vehicle behaviour; Counteracting thereof
- B60T2230/03—Overturn, rollover
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
Description
技术领域
本发明涉及一种按权利要求1前序部分所述的用于调节车辆的行驶动力学的设备以及一种按权利要求8前序部分所述的用于调节的相应的方法。
背景技术
公知的行驶动力学调节器,如ESP(电子稳定程序),通常调节车辆的偏转比率和浮动角。为此必须确定,车辆应采取何种行动(额定值)以及实际上采取何种行动(实际值)。通常这样来计算额定值,使车辆尽可能精确地遵循由驾驶员通过方向盘和加速踏板调整预定的运动轨迹(驾驶员意愿)。在此,问题在于,行驶动力学调节器即使在有倾翻危险的情况下,也将车辆调节到驾驶员期望的运动轨迹上。由此使车辆遭受过高的横向加速度并倾翻。
为了防止车辆倾翻,已知一些单独的设备,它们在横向加速度过高的情况下干预行驶并例如通过自动制动干预或转向干预来稳定车辆。由WO 99/37516例如已知,确定车辆的侧倾趋势并在此基础上这样调节车辆的横向动力学,使车辆不会倾翻。由WO 2006/018349 A1已知,基于各种预定义的车辆行驶状况来识别倾翻。但所有系统的共同点在于,它们除了行驶动力学调节器外,还被实现为带自有的传感器和自有的信号处理装置的单独的设备,因而意味着高昂的附加费用。
发明内容
就此而言,本发明所要解决的技术问题是,创造一种设备和一种方法,用这种设备或方法可以十分简单地实现避免倾翻的功能。
按照本发明,该技术问题通过独立权利要求的特征解决。本发明其它的设计方案是从属权利要求的内容。
本发明的一个主要方面在于,将避免倾翻的功能集成到传统的行驶动力学调节器中,例如ESP中,并且车辆借助修正后的行驶动力学调节器被强制到一个具有比驾驶员所期望的更大的弯道半径的运动轨迹中。由此限制车辆的横向加速度。为此,按照本发明设额定值发生器,它在考虑到驾驶员意愿的情况下至少求出调节器的额定值。在危急的行驶情况下,即车辆的横向加速度过大时,倘若行驶动力学调节器遵循驾驶员的意愿,那么按照本发明,限定额定值的最大值。在此这样设定该最大值,使车辆的横向加速度不超过阈值且车辆因而至少不会倾翻。在临界情况下,即在车速过高时驾驶员预先确定过小的弯道半径时,车辆不再精确地遵循驾驶员所期望的运动轨迹,而是遵循有更大半径的轨迹并且实施有较小偏转比率的偏转运动。以此方式可以及时且和谐地对抗过高的横向加速度,从而使车辆不再倾翻。因此,通过简单的限定调节器额定值,可以和标准的行驶动力学调节一起实现避免倾翻的功能。
横向加速度的阈值可以例如定义成这样的值,在该值下,车辆会倾翻。但也可以选择更小的值。
按照本发明,“行驶动力学调节器”优选是这样一种系统,它至少调节行驶动力学的至少一个状态参数,例如车辆的偏转比率和/或浮动角。相关的额定值发生器优选包括数学的车辆模型(算法),该模型由各种测量参数,例如转向角或车速计算求出额定值,以及必要时由估计的参数计算求出额定值。
按照本发明的一种优选的实施形式,根据作用在前轮和/或作用在后轮上的横向力计算额定值。至少一个横向力在此被限制为一个值,该值设定成使车辆的横向加速度不超过允许的阈值。优选限制前轮的横向力。
附图说明
接下来借助附图示例性地进一步阐释本发明。附图中:
图1是车辆的行驶动力学调节器的方块图;
图2是车辆的单道模型的示意性视图;
图3a是在一段时间内的转向角的图表;
图3b示出了带本发明的额定值发生器和不带本发明的额定值发生器的车辆的摆动角的示例性时间变化曲线。
具体实施方式
图1示出了用于调节车辆的横向动力学的行驶动力学调节器100,带有调节回路。行驶动力学调节器100包括额定值发生器110,其在此计算用于本来的调节器130的额定偏转比率 。额定值发生器110包括数学的车辆模型(算法),例如由现有技术公开的单道模型,车辆模型在考虑到转向角和车辆纵向速度的情况下,计算额定偏转比率。优选测量所述参数。
在节点120上,由额定偏转比率以及实际偏转比率或计算调节差,所述调节差被传递给行驶动力学调节器130。在调节差过高时,每个车轮的行驶动力学调节器130计算单独的制动干预,该制动干预借助车轮制动器实施。作为调节对象的车辆示意性地用方块140表示。
额定值发生器110的车辆模型在图2中示出。用于确定额定偏转比率的相关的模型方程式为:
为了计算额定偏转比率,除车辆专有的参数,如围绕z-轴的车辆惯性、车辆质量和前与后轮距车辆重心的轮距、外,额定值发生器110也需要测量参数,如转向角和纵向速度。此外,时间相关的参数,如前轮(指数F)的横向力和后轮(指数R)的横向力也是必需的,这些参数可以由测量参数以及从模型方程(1)、(2)的之前的解计算得出。用于确定这些参数的附加的传感器不是绝对必要的。
为了确定当前的额定偏转比率,额定值发生器110首先在最后计算的额定偏转比率和最后计算的横向速度的基础上计算当前的侧偏角、,并且在相应的特性曲线中查阅单个车轮的相关的横向力、。若横向力、大到使车辆的横向加速度超过最大值,那么限制至少一个横向力值。然后在限制的横向力的基础上计算额定偏转比率。由此借助行驶动力学调节器确保该额定偏转比率的调整,使车辆不会倾翻。
参考模型的横向加速度由此确定
Claims (8)
3.按权利要求2所述的设备,其特征在于,阈值小于车辆发生倾翻时的临界值。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009000922.1 | 2009-02-17 | ||
DE102009000922A DE102009000922A1 (de) | 2009-02-17 | 2009-02-17 | Verfahren zur Fahrzeugstabilisierung mit integrierter Funktion zur Umkippvermeidung |
PCT/EP2009/067662 WO2010094364A1 (de) | 2009-02-17 | 2009-12-21 | Verfahren zur fahrzeugstabilisierung mit integrierter funktion zur umkippvermeidung |
Publications (2)
Publication Number | Publication Date |
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CN102317129A true CN102317129A (zh) | 2012-01-11 |
CN102317129B CN102317129B (zh) | 2014-09-10 |
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Application Number | Title | Priority Date | Filing Date |
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CN200980156836.8A Expired - Fee Related CN102317129B (zh) | 2009-02-17 | 2009-12-21 | 用于利用集成的避免倾翻的功能稳定车辆的方法 |
Country Status (5)
Country | Link |
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US (1) | US20120035784A1 (zh) |
EP (1) | EP2398681B1 (zh) |
CN (1) | CN102317129B (zh) |
DE (1) | DE102009000922A1 (zh) |
WO (1) | WO2010094364A1 (zh) |
Families Citing this family (4)
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EP2699462B1 (de) | 2011-04-19 | 2016-11-23 | Ute Marita Meissner | Fahrdynamikregelung mit gnss und ins |
ITBO20120003A1 (it) * | 2012-01-05 | 2013-07-06 | Ferrari Spa | Metodo di controllo di una sospensione attiva di una vettura |
US9283825B2 (en) | 2014-02-25 | 2016-03-15 | Isam Mousa | System, method, and apparatus to prevent commercial vehicle rollover |
JP2016159683A (ja) * | 2015-02-27 | 2016-09-05 | 富士通テン株式会社 | 車両制御装置、車両制御システム、および、車両制御方法 |
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- 2009-02-17 DE DE102009000922A patent/DE102009000922A1/de not_active Withdrawn
- 2009-12-21 US US13/138,370 patent/US20120035784A1/en not_active Abandoned
- 2009-12-21 CN CN200980156836.8A patent/CN102317129B/zh not_active Expired - Fee Related
- 2009-12-21 EP EP09796721.0A patent/EP2398681B1/de not_active Not-in-force
- 2009-12-21 WO PCT/EP2009/067662 patent/WO2010094364A1/de active Application Filing
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Also Published As
Publication number | Publication date |
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WO2010094364A1 (de) | 2010-08-26 |
EP2398681A1 (de) | 2011-12-28 |
CN102317129B (zh) | 2014-09-10 |
EP2398681B1 (de) | 2014-02-26 |
US20120035784A1 (en) | 2012-02-09 |
DE102009000922A1 (de) | 2010-08-19 |
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