Hydraulic vehicle brake system
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United States of America Patent
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Jul 9, 2002
Grant Date -
Sep 20, 2001
app pub date -
Dec 22, 2000
filing date -
Dec 30, 1999
priority date (Note) -
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Abstract
The invention relates to a hydraulic vehicle brake system (10), having a hydraulic pump (12) and a high-pressure hydraulic reservoir (22) for external-force braking, as well as a conventional master cylinder (28), which serves as a set-point brake force transducer for the external-force braking and serves the purpose of muscle-powered secondary braking if the external-force service brake system fails. To embody the vehicle brake system (19) with an active pedal travel simulator, the invention proposes connecting the master cylinder (28) to a low-pressure hydraulic reservoir (26) via a disconnecting valve (30) and to the high-pressure hydraulic reservoir (22) via a return valve (32).
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