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公开(公告)号：EP1268249A1
公开(公告)日：2003-01-02
申请号：EP01927729.2
申请日：2001-03-15
发明人： BURGDORF, Jochen , DROTT, Peter , VOLZ, Peter
摘要： The invention relates to a vehicle braking system with a pneumatic brake booster. The invention is characterized in that a switch or sensor element (32) that senses the maximum boost force on the basis of a maximum deformation of a reaction member (6) disposed indirectly between an output element (plunger rod) (14) and a movable wall (2) by detecting the maximum approach (a, z) between the output element representing the initial force (Fa) and the movable wall or the control housing representing the boost force (Fv). Appropriate devices detect the hold time during which the above signal is applied. Only when the signal is applied during the entire hold time, a signal indicating the control point is emitted.
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公开(公告)号：EP1268245A2
公开(公告)日：2003-01-02
申请号：EP01933745.0
申请日：2001-03-23
发明人： DROTT, Peter , KRÄMER, Horst , KRANLICH, Holger , HOFFMANN, Jan
IPC分类号： B60T7/04
CPC分类号： B60T8/4081 , B60T7/042 , B60T11/20
摘要： The invention relates to an operating unit for an electrohydraulic braking system of the 'brake-by-wire' type, in the form of a tandem master cylinder, the first and second piston of which are each pre-tensioned by a return spring against the operating direction. The first pressure chamber of the tandem main cylinder is connected to a hydraulic chamber, defined by a simulator element. The simulator element also defines a simulator chamber, containing a simulator spring, connected to a pressure fluid reservoir. A valve device is provided which opens or closes the hydraulic connection between the simulator chamber and the pressure fluid reservoir. According to the invention, an operating unit may be economically produced and easily bled of air, whereby the simulator element is formed by a simulator piston (18), and the valve device is formed from a seal (24) arranged on the second piston (3) and the opening area of a channel, which forms the hydraulic connection (23) and which is formed within the range of movement of the seal (24).
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公开(公告)号：EP1259736A2
公开(公告)日：2002-11-27
申请号：EP00947980.9
申请日：2000-07-12
发明人： DROTT, Peter , FEIGEL, Hans-Jörg , KRÄMER, Horst , HOFFMANN, Jan
IPC分类号： F04C2/00
CPC分类号： B60T17/02 , F01C21/102 , F04C18/3441 , F04C29/00 , F04C29/0071 , F04C2220/10 , F04C2230/603
摘要： The invention relates to a vacuum pump aggregate (1), especially for a pneumatic power booster in a motor vehicle brake system, comprising a vacuum pump with a rotor (3) that is rotatably arranged in a pump housing (2), and comprising a drive, especially an electric motor, with a motor shaft (19) which, in essence, is rotatably arranged in a motor housing (20), and which transmits torque to the rotor (3). It is generally required that a vacuum pump be designed so that it can be connected to different drives. For this reason, it should be made possible, for example, to use either an already existing and fundamentally essential motor or an independent motor. The fundamental aim of the invention is to provide an aggregate that requires as little installation space as possible. To this end, the drive and the pump can be flange-mounted together as independently operable units, and at least one means for supporting the motor shaft (19) at least partially projects into the radial alignment of the vacuum pump.
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公开(公告)号：EP1053156A1
公开(公告)日：2000-11-22
申请号：EP99906217.7
申请日：1999-02-04
发明人： DROTT, Peter , VOGT, Michael , FEIGEL, Hans-Jörg , GONZALEZ, Jose , KRÄMER, Horst , NEU, Thorsten
IPC分类号： B60T13/72
摘要： The invention relates to a brake power booster for motor vehicles which comprises a booster housing (1) whose interior space is divided into a working chamber (3) and a low pressure chamber (4) by a movable wall (2). The brake power booster also comprises a control housing (7) which supports the moveable wall (2). A control valve (6) for controlling a pressure differential acting upon the movable wall (2) is arranged in said control housing. The control valve can be actuated via an actuating rod (5) by means of a valve piston (10) and via an electromagnet (22). The inventive brake power booster is characterized in that the electromagnet (22) can be controlled according to the relative displacement between the valve piston (10) and the control housing (7), said displacement being detected by a sensor (30). The signal of the sensor can be used to activate and deactivate the electromagnet in order to enable a brake assistant function which is very easy to control. In doing this, the brake assistant function can only be initiated or completed based on the signals of a single sensor.
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公开(公告)号：EP0759865B1
公开(公告)日：2000-03-08
申请号：EP95920039.5
申请日：1995-05-15
发明人： LÜTTEKE, Harald , BÖHM, Peter , DROTT, Peter , FEIGEL, Hans-Jörg , KAHRS, Manfred , RIETH, Peter
CPC分类号： B60T8/4013 , B60T13/44 , B60T13/52 , B60T17/02 , Y10S303/03
摘要： A brake system for motor vehicles with a pneumatic brake booster (5) has two chambers. A lower pressure is applied to one of the chambers and a higher pressure is applied to the other chamber. At least one of the chambers may communicate with a pneumatic pump. Means (49) are provided to switch the pump (51, 61, 65) on and off depending on the pressure in the chamber (4, 7) of the brake booster (5) with the pump is associated.
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公开(公告)号：EP3055176B1
公开(公告)日：2018-11-14
申请号：EP14766158.1
申请日：2014-09-12
CPC分类号： B60T11/16 , B60T17/046 , F16B9/026
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公开(公告)号：EP2704933B1
公开(公告)日：2018-10-10
申请号：EP12721460.9
申请日：2012-05-04
发明人： KÖNIG, Harald , DROTT, Peter , JUNGMANN, Udo , BISCHOFF, Andreas
IPC分类号： B60T11/16 , B60T11/20 , B60T11/232
CPC分类号： B60T11/20 , B60T8/38 , B60T11/228
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公开(公告)号：EP1529175B1
公开(公告)日：2011-07-27
申请号：EP03766341.6
申请日：2003-07-29
IPC分类号： F15B7/08
CPC分类号： F16J15/3236 , F16J15/164
摘要： The invention relates to a sealing collar (3) for a cylinder-piston unit (1, 15). Said sealing collar (3) is essentially received in a groove (2) that is inserted into the cylinder (1) or piston (15) and comprises two sealing lips (4, 5). The first sealing lip (5) is dynamically impinged upon and is in contact with the piston (15) or cylinder (1) while the second sealing lip (4) is statically impinged upon and rests on a bottom of the groove (2). The invention is characterized by the fact that the sealing collar (3) is provided with an extension (6) which runs parallel to the sealing lips (4, 5), is radially disposed between the first sealing lip (5) and the second sealing lip (4), and protrudes from the sealing lips (4, 5) in an axial direction.
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公开(公告)号：EP1658212B1
公开(公告)日：2007-03-07
申请号：EP04766409.9
申请日：2004-08-04
发明人： DROTT, Peter , KÖNIG, Harald , JUNGMANN, Udo , BISCHOFF, Andreas
IPC分类号： B60T11/236 , F16J15/16
CPC分类号： F16J15/3236 , B60T11/236 , F16J15/164
摘要： The invention relates to a cylinder, in particular for a motor vehicle hydraulic brake systems comprising at least one case (2) provided with a plunger piston (3) movable therein, at least one angular sealing collar (5) arranged in the snap ring groove (4) of the case (2), an internal lip (6) dynamically applied to the plunger piston (3) by a first sealing surface (8), an external lip (7) statically applied to the bottom of the snap ring groove (4) by a second sealing surface (9) and the back of the collar (17). Said invention is characterised in that the back of the collar (17) is not flat and is provided with at least one peripheral-sealing surface (18, 24).
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公开(公告)号：EP1529175A1
公开(公告)日：2005-05-11
申请号：EP03766341.6
申请日：2003-07-29
IPC分类号： F16J15/32
CPC分类号： F16J15/3236 , F16J15/164
摘要： The invention relates to a sealing collar (3) for a cylinder-piston unit (1, 15). Said sealing collar (3) is essentially received in a groove (2) that is inserted into the cylinder (1) or piston (15) and comprises two sealing lips (4, 5). The first sealing lip (5) is dynamically impinged upon and is in contact with the piston (15) or cylinder (1) while the second sealing lip (4) is statically impinged upon and rests on a bottom of the groove (2). The invention is characterized by the fact that the sealing collar (3) is provided with an extension (6) which runs parallel to the sealing lips (4, 5), is radially disposed between the first sealing lip (5) and the second sealing lip (4), and protrudes from the sealing lips (4, 5) in an axial direction.
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