Global Patent Index - EP 0863826 A1

EP 0863826 A1 19980916 - HYDRAULIC BRAKING SYSTEM FOR ROAD VEHICLES, IN PARTICULAR PASSENGER CARS

Title (en)

HYDRAULIC BRAKING SYSTEM FOR ROAD VEHICLES, IN PARTICULAR PASSENGER CARS

Title (de)

HYDRAULISCHE BREMSANLAGE FÜR STRASSENFAHRZEUGE, INSBESONDERE PERSONENKRAFTWAGEN

Title (fr)

SYSTEME DE FREINAGE HYDRAULIQUE POUR VEHICULES ROUTIERS, NOTAMMENT POUR VOITURES PARTICULIERES

Publication

EP 0863826 A1 19980916 (DE)

Application

EP 96945338 A 19960924

Priority

  • DE 9601806 W 19960924
  • DE 19546647 A 19951214

Abstract (en)

[origin: DE19546647A1] The invention concerns a braking system (10) comprising a power-operated service brake and an auxiliary brake operated by muscle power. In order to produce a desired pedal characteristic when the service brake is actuated, a brake master cylinder (17) contains a path simulator (37) comprising pressure springs (46, 47) disposed in a pressure chamber (45). The pressure chamber (45) is delimited by a floating piston (42) with a seat valve (63) which provides a pressure-medium-conveying connection between the pressure chamber and a pressure medium supply container of the brake master cylinder (17). The operation of the seat valve (63) is dependent on the stroke of a rod piston (40) by means of which pressure medium can be expelled from a first pressure chamber (43) when the auxiliary brake is actuated. The path simulator (37) comes into effect when no pressure medium is expelled from the first pressure chamber (43) when the service brake is operated, and consequently the seat valve (63) assumes its open position.

IPC 1-7

B60T 13/68; B60T 8/40; B60T 13/14

IPC 8 full level

B60T 7/04 (2006.01); B60T 8/32 (2006.01); B60T 8/36 (2006.01); B60T 8/40 (2006.01); B60T 13/14 (2006.01); B60T 13/68 (2006.01)

CPC (source: EP KR US)

B60T 7/042 (2013.01 - EP US); B60T 8/3655 (2013.01 - EP US); B60T 8/4081 (2013.01 - EP US); B60T 13/14 (2013.01 - EP US); B60T 13/68 (2013.01 - KR); B60T 13/686 (2013.01 - EP US)

Citation (search report)

See references of WO 9721573A1

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

DE 19546647 A1 19970619; DE 19546647 B4 20060706; EP 0863826 A1 19980916; JP 2000501674 A 20000215; KR 19990072102 A 19990927; US 5988768 A 19991123; WO 9721573 A1 19970619

DOCDB simple family (application)

DE 19546647 A 19951214; DE 9601806 W 19960924; EP 96945338 A 19960924; JP 52159297 A 19960924; KR 19980704414 A 19980612; US 7779998 A 19980615