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1. WO2020200915 - ACTUATION DEVICE FOR A BRAKE SYSTEM

Publication Number WO/2020/200915
Publication Date 08.10.2020
International Application No. PCT/EP2020/058155
International Filing Date 24.03.2020
IPC
B60T 7/04 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
7Brake-action initiating means
02for personal initiation
04foot-actuated
B60T 13/74 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
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
B60T 11/18 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
11Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
10transmitting by fluid means, e.g. hydraulic
16Master control, e.g. master cylinders
18Connection thereof to initiating means
CPC
B60T 11/18
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
11Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
10transmitting by fluid means, e.g. hydraulic
16Master control, e.g. master cylinders
18Connection thereof to initiating means
B60T 13/74
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
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 7/042
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
7Brake-action initiating means
02for personal initiation
04foot actuated
042by electrical means, e.g. using travel or force sensors
F16H 25/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
25Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
18for conveying or interconverting oscillating or reciprocating motions
20Screw mechanisms
F16H 57/021
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
57General details of gearing
02Gearboxes; Mounting gearing therein
021Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • NAGEL, Willi
  • CORTES GUASCH, Esteve
  • OSSES, Michael
Priority Data
10 2019 204 554.501.04.2019DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) BETÄTIGUNGSEINRICHTUNG FÜR EINE BREMSANLAGE
(EN) ACTUATION DEVICE FOR A BRAKE SYSTEM
(FR) DISPOSITIF D'ACTIONNEMENT POUR UN SYSTÈME DE FREINAGE
Abstract
(DE)
Die Erfindung betrifft eine Betätigungseinrichtung (1) für eine Bremsanlage, mit einer Eingangsstange (10), die durch ein Bremspedal in eine Betätigungsrichtung (4) verschiebbar ist, mit einem Wegsensor (11), der einen Messwertgeber (14) und einen Empfänger (12) aufweist und der dazu ausgebildet ist, eine Schiebestellung der Eingangsstange (10) zu ermitteln, und mit einem Bremskrafterzeuger (5), der ein Spindelgetriebe (6) mit einer Spindelmutter (7) und mit einer Spindel (8) aufweist, wobei die Spindelmutter (7) um eine sich in Betätigungsrichtung (4) erstreckende Rotationsachse (46) drehbar gelagert und die Spindel (8) durch eine Drehung der Spindelmutter (7) axial verlagerbar ist, und der dazu ausgebildet ist, in Abhängigkeit von der ermittelten Schiebestellung die Spindel (8) zur Betätigung eines Hauptbremszylinders (2) der Bremsanlage axial zu verlagern, wobei die Eingangsstange (10) axial relativ zu der Spindel (8) verlagerbar ist, und wobei die Betätigungseinrichtung (1) einen Pedalwegsimulator (18) aufweist, der durch die Eingangsstange (10) betätigbar ist. Es ist ein eine Axialkraft übertragendes Lager (19) vorgesehen, das axial zwischen der Spindelmutter (7) einerseits und dem Pedalwegsimulator (18) andererseits gehalten ist.
(EN)
The invention relates to an actuation device (1) for a brake system, comprising an input rod (10) which can be moved in an actuation direction (4) by a brake pedal; a displacement sensor (11) which has a measured value transmitter (14) and a receiver (12) and is designed to ascertain a shifted position of the input rod (10); and a braking force generator (5) which has a spindle gear mechanism (6) with a spindle nut (7) and a spindle (8), wherein the spindle nut (7) is rotatably mounted about a rotational axis (46) extending in the actuation direction (4), and the spindle (8) can be axially moved by rotating the spindle nut (7). The braking force generator is designed to axially moved the spindle (8) on the basis of the ascertained shifted position in order to actuate a master brake cylinder (2) of the brake system. The input rod (10) can be moved axially relative to the spindle (8), and the actuation device (1) has a pedal travel simulator (18) which can be actuated by the input rod (10). A bearing (19) which transmits an axial force is provided, said bearing being held axially between the spindle nut (7) and the pedal travel simulator (18).
(FR)
L’invention concerne un dispositif d’actionnement (1) pour un système de freinage, ledit dispositif comportant une tige d’entrée (10), qui peut être déplacée par une pédale de frein dans une direction d’actionnement (4), un capteur de déplacement (11), qui comporte un capteur de mesure (14) et un récepteur (12), et qui est conçu de sorte à déterminer une position de déplacement de la tige d’entrée (10), et un générateur de force de freinage (5) qui comporte un entraînement à broche (6) doté d’un écrou (7) et d’une broche (8), l’écrou (7) étant monté de manière à tourner autour d’un axe de rotation (46) s’étendant dans la direction d’actionnement (4), et la broche (8) pouvant se déplacer dans le sens axial par rotation de l’écrou (7), et ledit écrou étant conçu de sorte à déplacer la broche dans le sens axial, en fonction de la position de déplacement déterminée, afin d’actionner un maître-cylindre (2) du système de freinage, la tige d’entrée (10) pouvant se déplacer dans le sens axial relativement à la broche (8) et le dispositif d’actionnement (1) comportant un simulateur de course de pédale (18) qui peut être actionné par la tige d’entrée (10). Un palier (19) transmettant une force axiale est maintenu axialement entre d’une part l’écrou (7) et d’autre part le simulateur de course de pédale (18).
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