Title:
ELECTRONIC BRAKE SYSTEM, PARTICULARLY FOR COMMERCIAL VEHICLE TRAILERS
Document Type and Number:
WIPO Patent Application WO2004022400
Kind Code:
A8
Abstract:
The invention relates to an electronic brake system, particularly for commercial vehicle trailers, comprising at least one pneumatically pilot-controlled trailer control module (1) for applying brake pressure to at least one assigned pneumatic brake cylinder (2) in accordance with a brake signal predetermined by a foot brake module (8). Said signal is presented as an electrical signal modified by an electronic control unit (9) and as a direct pneumatic signal for performing a safety operation, wherein the electrical signal is provided for controlling an intake/exhaust valve arrangement (10) for generating a control pressure in a first control piston (14) of the pilot-controlled trailer control module (1) and the pneumatic signal for generating a control pressure is provided for generating a control pressure in a second control piston (16) of the pilot-controlled trailer control module (1), wherein the second control piston (16) is arranged parallel and adjacent to the first control piston (14) in the trailer control module (1) and is influenced by means for retaining it in a resting position, wherein the pneumatic signal coming from the foot brake module (8) that is equally parallel and throttled is guided in a controlled manner to the first control piston (14) through a normally open, electro--pneumatic backup valve (18) with an upstream throttle (19) with the purpose of ensuring a preferred control pressure supply to the second control piston (16) in case of safety mode operation.
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Inventors:
ROETHER FRIEDBERT (DE)
BRENNER DIRK (DE)
JUDITH MARTIN (DE)
WERNER KAI (DE)
BRENNER DIRK (DE)
JUDITH MARTIN (DE)
WERNER KAI (DE)
Application Number:
PCT/EP2003/008882
Publication Date:
June 03, 2004
Filing Date:
August 11, 2003
Export Citation:
Assignee:
KNORR BREMSE SYSTEME FUER NUTZF (DE)
ROETHER FRIEDBERT (DE)
BRENNER DIRK (DE)
JUDITH MARTIN (DE)
WERNER KAI (DE)
ROETHER FRIEDBERT (DE)
BRENNER DIRK (DE)
JUDITH MARTIN (DE)
WERNER KAI (DE)
International Classes:
B60T13/26; B60T13/68; B60T15/02; B60T15/18; B60T15/20; B60T17/22; (IPC1-7): B60T13/26; B60T13/68; B60T15/02; B60T15/20
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