| 摘要 |
The hydraulic brake system comprises a piston/cylinder unit ( 14 ) for activating and releasing a brake ( 12 ), comprising a volume ( 16 ) adapted to have a pressurized working fluid supplied thereto for moving the piston ( 24 ) from a braking position into a release position for releasing the brake. Further, the hydraulic brake system comprises a supply line ( 18 ) for the supply of working fluid from a reservoir ( 22 ), a discharge line ( 30 ) for the discharge of working fluid from the volume ( 16 ) of the piston/ cyliinder unit ( 14 ), a first valve ( 34 ) and an element ( 36 ) for determining the flow resistance, a bypass line ( 32 ) provided with a second ON/OFF valve ( 38 ) and arranged for a flow in parallel to the discharge line ( 30 ). At the start of a braking process, among the two ON/OFF valves ( 34,38 ) which in the released condition of the brake are in the closed condition, the first ON/OFF valve ( 34 ) is opened and, upon lapse of a presettable first time period (T<SUB>delay1</SUB>) from the opening of the first ON/OFF valve ( 34 ), the second ON/OFF valve ( 38 ) is opened.
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