Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Reexamination Certificate
2006-02-21
2006-02-21
Kramer, Devon C. (Department: 3683)
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
C303S113100, C303S115400, C303S119200, C303S011000, C303S020000
Reexamination Certificate
active
07000997
ABSTRACT:
An actuating unit (1) for a wheel brake (2) of a motor vehicle has a hydraulic pump (14) that can be driven at variable speeds by an electric motor (13). In addition, a cylinder-piston unit (3) is provided, with a piston (6) and with cylinder chambers (7, 8) disposed on both sides of the piston. By means of the cylinder-piston unit (3), a brake lining (9) can be pressed against and lifted away from a friction element (10) connected to a vehicle wheel. A 4/3-port directional-control valve (15) is provided between the pump (14) and the cylinder-piston unit (3) and is used to modulate the pressure in the cylinder-piston unit. The actuating unit (1) is associated with a control unit (29), which can process an electric brake request signal and can control the electric motor (13) and the valve (15).
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Werner Goetz: “Hydraulik in Theorie Und Praxis”, 1995, Bosch, Stuttgart XP00216258, p. 178, p. 187.
Werner Goetz: “Elektrohydraulische Proportional . . . ”, 1989, Bosch, Stuttgart XP002161259, p. 76.
Kramer Devon C.
Robert & Bosch GmbH
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