Hydraulic braking system, especially for motor vehicles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 23, 1997
Grant Date -
N/A
app pub date -
Sep 9, 1996
filing date -
Sep 12, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A braking system is disclosed that has a manually-actuatable master cylinder having two pressure chambers. A first pressure chamber hydraulically controls a flow control valve through which the pressure medium flows during servo-braking in order to adjust its regulating cross-section to produce a defined dynamic pressure that is applied to a first piston/cylinder arrangement, connected to the flow control valve, of a brake application element to produce a braking force. A second pressure chamber can be connected to a second piston of a brake application element so that a braking force can be applied to the brake application element if the servo-force fails. Also, instead of the second piston/cylinder arrangement, a separate separator piston/cylinder arrangement can be provided that is inserted between the second pressure chamber and the piston/cylinder arrangement. As a result, sufficient braking force is produced both in servo-force braking and if the servo-force fails. Also, an appropriate response by the braking forces to the master cylinder is effected so that there is always good actuating feedback.
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