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1. WO2021229322 - VEHICLE BRAKING SYSTEM AND ACCUMULATOR THEREFOR

Publication Number WO/2021/229322
Publication Date 18.11.2021
International Application No. PCT/IB2021/053200
International Filing Date 19.04.2021
IPC
B60T 13/14 2006.1
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
10with fluid assistance, drive, or release
12the fluid being liquid
138Pressure supply arrangements
14using accumulators or reservoirs
B60T 17/22 2006.1
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
17Component parts, details, or accessories of brake systems not covered by groups B60T8/, B60T13/ or B60T15/170
18Safety devices; Monitoring
22Devices for monitoring or checking brake systems; Signal devices
CPC
B60T 13/14
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
12the fluid being liquid
14using accumulators or reservoirs ; fed by pumps
B60T 13/148
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
12the fluid being liquid
14using accumulators or reservoirs ; fed by pumps
148Arrangements for pressure supply
B60T 17/221
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
17Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
18Safety devices; Monitoring
22Devices for monitoring or checking brake systems; Signal devices
221Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
Applicants
  • 罗伯特·博世有限公司 ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • 熊文英 XIONG, Wenying
  • 江海 JIANG, Hai
Priority Data
202010313514.820.04.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) VEHICLE BRAKING SYSTEM AND ACCUMULATOR THEREFOR
(FR) SYSTÈME DE FREINAGE DE VÉHICULE ET ACCUMULATEUR ASSOCIÉ
(ZH) 车辆制动系统及其蓄能器
Abstract
(EN) Disclosed in the present invention is a vehicle braking system comprising an accumulator (40), the accumulator (40) comprising: a cylinder (410), provided with a first end portion that defines a fluid port (412); an end cover (450), mounted on a second end portion of the cylinder (410) and together with the cylinder (410) defining a piston chamber (430) in communication with a fluid of the fluid port (412); and a piston (440) accommodated in the piston chamber (430) and able to move back and forth in the axial direction therein. An elastic element (460) is clamped between the piston (440) and the end cover (450), the piston chamber (430) is divided by the piston (440) into a high-pressure side in communication with the fluid of the fluid port (412) and a low-pressure side where the elastic element (460). The accumulator (40) further comprises a drain hole (499) configured to be used to guide brake fluid that has leaked from the high-pressure side in the piston chamber (430) to the low-pressure side of the piston chamber (430) away from the low-pressure side. The present invention further relates to an accumulator for the vehicle braking system.
(FR) La présente invention concerne un système de freinage de véhicule comprenant un accumulateur (40), l'accumulateur (40) comprenant : un cylindre (410), pourvu d'une première partie d'extrémité qui définit un orifice de fluide (412); un couvercle d'extrémité (450), monté sur une deuxième partie d'extrémité du cylindre (410) et conjointement avec le cylindre (410) définissant une chambre de piston (430) en communication avec un fluide de l'orifice de fluide (412); et un piston (440) logé dans la chambre de piston (430) et pouvant se déplacer en va-et-vient dans la direction axiale à l'intérieur de celle-ci. Un élément élastique (460) est serré entre le piston (440) et le couvercle d'extrémité (450), la chambre de piston (430) est divisée par le piston (440) en un côté haute pression en communication avec le fluide de l'orifice de fluide (412) et un côté basse pression au niveau de l'élément élastique (460). L'accumulateur (40) comprend en outre un trou de vidange (499) configuré pour être utilisé pour guider un fluide de frein qui a fui depuis le côté haute pression dans la chambre de piston (430) vers le côté basse pression de la chambre de piston (430) à l'opposé du côté basse pression. La présente invention concerne en outre un accumulateur pour le système de freinage de véhicule.
(ZH) 本申请公开了一种包括蓄能器(40)的车辆制动系统,所述蓄能器(40)包括:缸体(410),其具有限定出流体端口(412)的第一端部;和端盖(450),其被安装于所述缸体(410)的第二端部并且与所述缸体(410)共同限定出与所述流体端口(412)流体连通的活塞腔(430);和被容置于所述活塞腔(430)内并且能够在其中轴向往复移动的活塞(440),弹性元件(460)夹置于活塞(440)和端盖(450)之间,活塞腔(430)被活塞(440)分隔为与流体端口(412)流体连通的高压侧和弹性元件(460)所处的低压侧,其中,所述蓄能器(40)还包括被配置用于将从所述活塞腔(430)的高压侧泄露到所述活塞腔(430)的低压侧的制动液引导离开所述低压侧的排泄口(499)。本申请还涉及该车辆制动系统中的蓄能器。
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