公开(公告)号：EP0792224A1

公开(公告)日：1997-09-03

申请号：EP95934097.0

申请日：1995-09-22

申请人： ITT Automotive Europe GmbH

发明人： STRIEGEL, Thomas ,  LEHMER, Ronald ,  EHMER, Norbert ,  WOYWOD, Jürgen

IPC分类号： B60T8

CPC分类号： B60T8/1764 ,  B60T8/1755 ,  B60T2210/124

摘要： The invention concerns a circuit arrangement which is provided for a vehicle having an electronic antilock control system and which, in order to increase directional stability in critical driving situations, comprises switching circuits for individually controlling the braking pressure on the front wheels and for restricting the yawing moment (GMB) following braking manoeuvres on carriageways whose righthand and lefthand surface sections differ longitudinally in terms of their roadholding coefficients (ν). In given particularly critical situations, in particular during driving manoeuvres on a carriageway whose roadholding coefficient (ν) differs since the surface is at different levels and during braking manoeuvres on a carriageway whose roadholding coefficient (ν) differs because the surface differs in patches, when predetermined criteria for a critical driving situation of this type are satisfied, a special regulation (MFO), which brings about a reduction in the braking pressure on the front drive wheel having the highest coefficient of friction, is initiated for a period of time which depends on the vehicle speed.

公开(公告)号：EP0651705A1

公开(公告)日：1995-05-10

申请号：EP93915974.0

申请日：1993-07-22

申请人： ITT Automotive Europe GmbH

发明人： BUSCHMANN, Gunther ,  WOYWOD, Jürgen

IPC分类号： B60T8

CPC分类号： B60T8/885 ,  B60T8/1766 ,  B60T8/266

摘要： In order to increase the reliability of a braking system with electronic control of the braking-force distribution, the invention calls for the front wheels (VR, VL) to be acted on, during braking, by a short pressure-reduction pulse which is negligible for the braking process, and the reaction of the front wheels to the pressure-reduction pulse is determined. If the reaction indicates an imbalance between, or a fault in, the front-wheel brakes, the limitation on the pressure increase in the brakes on the rear wheels (HR, HL), which is a result of the control of the brake-force distribution, is removed. The rear wheels thus provide, in this situation, an increased contribution to the braking process.

公开(公告)号：EP0651705B1

公开(公告)日：1996-02-28

申请号：EP93915974.5

申请日：1993-07-22

申请人： ITT Automotive Europe GmbH

发明人： BUSCHMANN, Gunther ,  WOYWOD, Jürgen

IPC分类号： B60T8/26

CPC分类号： B60T8/885 ,  B60T8/1766 ,  B60T8/266

摘要： In order to increase the reliability of a braking system with electronic control of the braking-force distribution, the invention calls for the front wheels (VR, VL) to be acted on, during braking, by a short pressure-reduction pulse which is negligible for the braking process, and the reaction of the front wheels to the pressure-reduction pulse is determined. If the reaction indicates an imbalance between, or a fault in, the front-wheel brakes, the limitation on the pressure increase in the brakes on the rear wheels (HR, HL), which is a result of the control of the brake-force distribution, is removed. The rear wheels thus provide, in this situation, an increased contribution to the braking process.

公开(公告)号：EP0583252B1

公开(公告)日：1995-03-15

申请号：EP92907126.4

申请日：1992-03-19

申请人： ITT Automotive Europe GmbH

发明人： GIERS, Bernhard ,  NIEPELT, Mathias ,  WOYWOD, Jürgen ,  FACHINGER, Georg ,  WIELAND, Andreas

IPC分类号： B60T8/00

CPC分类号： B60T8/1764 ,  Y10S303/04

摘要： A circuit arrangement for a vehicle with electronic anti-lock regulation has circuits for the individual regulation of the braking pressure cycle in the wheel brakes on a vehicle axle and to limit the yawing moment resulting from differences in braking pressure. In addition there are circuits (6) which detect the pressure reduction signals (PA1, PA2) individually and determine the pressure difference DA12) therefrom. With different frictional values (ν-split), the average pressure release gradient on the high-pressure wheel is varied dependently upon the pressure difference (DA12) and the vehicle deceleration. At the moment when the 'yawing moment peak' occurs, i.e. immediately before the low-pressure wheel returns to the stable region, the braking pressure at the high wheel is reduced by a value depending on the vehicle deceleration and the pressure difference.

公开(公告)号：EP0583252A1

公开(公告)日：1994-02-23

申请号：EP92907126.0

申请日：1992-03-19

申请人： ITT Automotive Europe GmbH

发明人： GIERS, Bernhard ,  NIEPELT, Mathias ,  WOYWOD, Jürgen ,  FACHINGER, Georg ,  WIELAND, Andreas

IPC分类号： B60T8

CPC分类号： B60T8/1764 ,  Y10S303/04

摘要： Un montage pour un véhicule comportant une régulation électronique du dispositif d'antiblocage comporte des circuits ayant pour fonction d'assurer une régulation individuelle des variations de la pression de freinage dans les freins des roues d'un essieu de véhicule et de limiter le couple d'embardée résultant de différences dans la pression de freinage. Il est prévu également des circuits (6) qui détectent, pour chaque roue, les signaux de chute de pression (PA1, PA2) et déterminent sur cette base la différence de pression (DA12). Pour différents coefficients de frottement (dissociation des valeurs de mu) on fait varier le gradient moyen d'élévation de pression au niveau de la roue supportant la pression la plus élevée en fonction de la différence de pression (DA12) et de la décélération du véhicule. A l'instant de l'apparition de la pointe de couple d'embardée, c'est-à-dire immédiatement avant le retour de la roue supportant la pression la plus faible dans la zone stable, la pression de freinage au niveau de la roue supportant la pression la plus élevée est réduite d'une valeur dépendant de la décélération du véhicule et de la différence de pression.