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1. WO1996003300 - ELECTRONICALLY CONTROLLABLE BRAKE ACTUATION SYSTEM

Publication Number WO/1996/003300
Publication Date 08.02.1996
International Application No. PCT/EP1995/002665
International Filing Date 08.07.1995
Chapter 2 Demand Filed 17.02.1996
IPC
B60T 8/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE 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
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
B60T 8/26 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE 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
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
26characterised by producing differential braking between front and rear wheels
B60T 8/32 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE 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
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
32responsive to a speed condition, e.g. acceleration or deceleration
B60T 8/40 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE 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
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
32responsive to a speed condition, e.g. acceleration or deceleration
34having a fluid pressure regulator responsive to a speed condition
40comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
B60T 8/42 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE 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
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
32responsive to a speed condition, e.g. acceleration or deceleration
34having a fluid pressure regulator responsive to a speed condition
42having expanding chambers for controlling pressure
B60T 8/48 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE 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
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
32responsive to a speed condition, e.g. acceleration or deceleration
34having a fluid pressure regulator responsive to a speed condition
48connecting the brake actuator to an alternative or additional source of fluid pressure
CPC
B60T 13/686
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
13Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
10with fluid assistance, drive, or release
66Electrical control in fluid-pressure brake systems
68by electrically-controlled valves
686in hydraulic systems or parts thereof
B60T 13/745
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
13Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
74with electrical assistance or drive
745acting on a hydraulic system, e.g. a master cylinder
B60T 8/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
B60T 8/266
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
26characterised by producing differential braking between front and rear wheels
266using valves or actuators with external control means
B60T 8/267
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
26characterised by producing differential braking between front and rear wheels
266using valves or actuators with external control means
267for hybrid systems with different kind of brakes on different axles
B60T 8/4081
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
32responsive to a speed condition, e.g. acceleration or deceleration
34having a fluid pressure regulator responsive to a speed condition
40comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
4072Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
4081Systems with stroke simulating devices for driver input
Applicants
  • ITT AUTOMOTIVE EUROPE GMBH [DE/DE]; Guerickestrasse 7 D-60488 Frankfurt am Main, DE (AllExceptUS)
  • FEIGEL, Hans-Jörg [DE/DE]; DE (UsOnly)
  • NEUMANN, Ulrich [DE/DE]; DE (UsOnly)
  • KLEIN, Andreas [DE/DE]; DE (UsOnly)
  • SCHIEL, Lothar [DE/DE]; DE (UsOnly)
Inventors
  • FEIGEL, Hans-Jörg; DE
  • NEUMANN, Ulrich; DE
  • KLEIN, Andreas; DE
  • SCHIEL, Lothar; DE
Common Representative
  • ITT AUTOMOTIVE EUROPE GMBH; Guerickestrasse 7 D-60488 Frankfurt am Main, DE
Priority Data
P 44 26 682.028.07.1994DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) ELEKTRONISCH REGELBARES BREMSBETÄTIGUNGSSYSTEM
(EN) ELECTRONICALLY CONTROLLABLE BRAKE ACTUATION SYSTEM
(FR) SYSTEME D'ACTIONNEMENT DE FREINS A REGULATION ELECTRONIQUE
Abstract
(DE)
Es wird ein elektronisch regelbares Bremsbetätigungssystem für Kraftfahrzeuge vorgeschlagen, mit einem mittels eines Betätigungspedals (1) betätigbaren Hauptbremszylinder (2), mit durch eine elektronische Steuereinheit (3) ansteuerbaren Bremsdruckgebern (4, 5), an die Radbremsen (7, 8) des Fahrzeuges direkt angeschlossen sind und die über mittels Ventileinrichtungen (16, 17) absperrbare hydraulische Verbindungen (11, 12) mit dem Hauptbremszylinder (2) verbindbar sind, mit mindestens einer Sensoreinrichtung (13, 22, 23) zur Erkennung des Fahrerverzögerungswunsches sowie mit mindestens einer mit dem Hauptbremszylinder (2) zusammenwirkenden Simulatorkammer (14, 15). Um die Funktion eines derartigen Systems, insbesondere die Dynamik der Bremsdruckgeber bei gleichzeitiger Verkürzung der Ansprechzeit des Gesamtsystems zu verbessern, wird erfindungsgemäß vorgeschlagen, daß die Ventileinrichtungen als Elektromagnetventile (16, 17) ausgebildet sind, die durch die elektronische Steuereinheit (3) zeitverzögert ansteuerbar sind, wobei an die Druckräume der Bremsdruckgeber (4, 5) Niederdruckspeicher (51, 52) angeschlossen sind, die in der Lösestellung der Bremsdruckgeber (4, 5) mit den Radbremsen (7, 8) in Verbindung gebracht werden.
(EN)
The proposal is for an electronically controllable brake actuation system for motor vehicles with a master cylinder (2) operable by a pedal (1) with braking force transmitters (4, 5) controllable via an electronic control unit (3) to which the wheel brakes (7, 8) of the vehicle are directly connected and can be connected to the master cylinder (2) via hydraulic lines (11, 12) which can be blocked by valves devices (16, 17), with at least one sensor device (13, 22, 23) to recognise the deceleration instruction and at least one simulator chamber (14, 15) co-operating with the master cylinder. In order to improve the operation of such a system, especially the dynamics of the brake pressure transmitter, while reducing the response time of the entire system, the invention proposes that the valve systems taken the form of electromagnetic valves (16, 17) controllable with a delay by the electronic control unit (3). Low-pressure stores (51, 52) are connected to the pressure chambers of the brake pressure transmitters (4, 5) and connected to the wheel brakes (7, 8) in the released position of the brake pressure transmitters (4, 5).
(FR)
L'invention concerne un système d'actionnement de freins à régulation électronique pour automobiles, qui comprend un cylindre principal (2) actionnable à l'aide d'une pédale (1) appropriée, des transmetteurs de pression de freinage (4, 5) pilotables par une unité de commande (3) électronique, auxquels les freins sur roue (7, 8) du véhicule sont raccordés directement et qui peuvent être connectés au cylindre principal de frein (2) par l'intermédiaire de connexions hydrauliques (11, 12), au moins un dispositif de détection (13, 22, 23) pour reconnaître la volonté de décélérer du conducteur, ainsi qu'au moins une chambre de simulation (14, 15) qui coopère avec le cylindre principal de frein (14, 15). Afin d'améliorer le fonctionnement d'un système de ce type, notamment la dynamique des transmetteurs de pression de freinage, tout en réduisant le temps de réponse du système global, il est prévu, selon l'invention, que les dispositifs de soupapes se présentent sous forme d'électrovannes (16, 17) pilotables de manière temporisée par l'unité de commande (3) électronique. Des réservoirs basse pression, qui sont connectés aux freins de roue (7, 8) lorsque les transmetteurs de pression de freinage (4, 5) sont en position relâchée, sont raccordés aux chambres de pression des transmetteurs de pression de freinage (4, 5).
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