Patents by Inventor Bernd Goetzelmann
Bernd Goetzelmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9573572Abstract: A brake booster coupling device includes: a braking piston, an input piston displaceable by an operation of a brake input element from its starting position by a driver braking distance, a force transmission between the input piston displaced by a driver braking distance below a predefined threshold value and the braking piston is suppressed, and a booster piston displaceable with the aid of the brake booster drive such that the braking piston, which contacts the booster piston, is displaceable with the aid of the brake booster drive from a non-braking position into a braking position; a contact element displaceable by a displacement of the braking piston from the non-braking position into the braking position such that a first contact surface of the contact element contacts a second contact surface of the input piston in such a way that a driver brake force is transmittable to the braking piston.Type: GrantFiled: March 16, 2011Date of Patent: February 21, 2017Assignee: ROBERT BOSCH GMBHInventors: Frank Overzier, Jochen Mayer, Willi Nagel, Bernd Goetzelmann
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Patent number: 9239102Abstract: The disclosure relates to a threaded shaft for a roller screw drive, for example for an electromechanical brake booster or an electromechanical power steering system. According to the disclosure, a helical coil with a flat, square-threaded annular cross-section is arranged on a thin-walled pipe, the pipe being formed onto a root region of the helical coil by the application of high pressure from the inside of the pipe.Type: GrantFiled: September 6, 2010Date of Patent: January 19, 2016Assignee: Robert Bosch GmbHInventors: Armin Verhagen, Willi Nagel, Bernd Goetzelmann
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Patent number: 8882181Abstract: The invention relates to a crash structure having adjustable rigidity for a deformation element for a vehicle, wherein the crash structure comprises a continuously adjustable rigidity, in that at least one blocking element (SR) moves in a plane rotated by an angle relative to the vehicle longitudinal axis with respect to a profile (MW), so that the rigidity is adjusted by a position of the at least one blocking element reached by the motion.Type: GrantFiled: July 6, 2011Date of Patent: November 11, 2014Assignee: Robert Bosch GmbHInventors: Bernd Goetzelmann, Thomas Friedrich
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Patent number: 8827053Abstract: The present invention relates to a self-amplifying electromechanical partial lining disc brake, having a ramp mechanism as a self-amplification device. According to the invention, a rack for driving a friction brake pad is situated between roller elements of the ramp mechanism, particularly at a geometrical centroid of an imaginary surface defined by the roller elements. As a result a load is distributed to the roller elements in a more uniform fashion and the pressing force of the friction brake pad against a brake disc when the partial lining disc brake is actuated is distributed more uniformly and counteracts irregular pad wear.Type: GrantFiled: March 19, 2007Date of Patent: September 9, 2014Assignee: Robert Bosch GmbHInventors: Chi-Thuan Cao, Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann, Hans Frick
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Publication number: 20130207408Abstract: A crash structure with adjustable rigidity for a deformation element in a vehicle includes an infinitely variably adjustable rigidity. The adjustable rigidity is adjusted by moving two profiles relative to each other such that a position of the two profiles opposite each other is reached. The position defines a degree of rigidity for the deformation element.Type: ApplicationFiled: May 18, 2011Publication date: August 15, 2013Applicant: Robert Bosch GmbHInventors: Thomas Friedrich, Bernd Goetzelmann
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Publication number: 20130207407Abstract: The invention relates to a crash structure having adjustable rigidity for a deformation element for a vehicle, wherein the crash structure comprises a continuously adjustable rigidity, in that at least one blocking element (SR) moves in a plane rotated by an angle relative to the vehicle longitudinal axis with respect to a profile (MW), so that the rigidity is adjusted by a position of the at least one blocking element reached by the motion.Type: ApplicationFiled: July 6, 2011Publication date: August 15, 2013Applicant: ROBERT BOSCH GMBHInventors: Bernd Goetzelmann, Thomas Friedrich
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Patent number: 8448757Abstract: The invention relates to an electromechanical friction brake, for example in the form of a disc brake having an electromechanical actuation device. The electric motor of the actuation device presses a frictional brake lining against a brake disc by means of a reduction gearbox and a ball ramp mechanism. The actuation device is supported by a spring washer that is pretensioned so strongly that when the disc brake is released it acts on a segment with a falling spring characteristic; that is, a spring force exerted by the spring washer on the frictional brake lining increases with increasing tension of the disc brake.Type: GrantFiled: November 14, 2008Date of Patent: May 28, 2013Assignee: Robert Bosch GmbHInventors: Herbert Vollert, Bertram Foitzik, Willi Nagel, Bernd Goetzelmann, Dirk Hofmann, Nguyet-Minh Cao
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Patent number: 8439170Abstract: The invention relates to a self-reinforcing electromechanical disc brake having a brake caliper produced by means of shaping, in one piece with a housing for electromechanical parts of an actuating device of the disc brake, with the housing forming a dimensionally stable hollow body. It is possible in this way to produce a bending-resistant and torsionally rigid brake caliper with a low wall thickness.Type: GrantFiled: June 14, 2006Date of Patent: May 14, 2013Assignee: Robert Bosch GmbHInventors: Chi-Thuan Cao, Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann, Hans Frick
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Publication number: 20120200009Abstract: The disclosure relates to a threaded shaft for a roller screw drive, for example for an electromechanical brake booster or an electromechanical power steering system. According to the disclosure, a helical coil with a flat, square-threaded annular cross-section is arranged on a thin-walled pipe, the pipe being formed onto a root region of the helical coil by the application of high pressure from the inside of the pipe.Type: ApplicationFiled: September 6, 2010Publication date: August 9, 2012Applicant: ROBERT BOSCH GMBHInventors: Armin Verhagen, Willi Nagel, Bernd Goetzelmann
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Publication number: 20120097490Abstract: A retaining bolt for attaching a brake caliper to a support is attached. The retaining bolt is hollow and includes a retaining element which is fixed on one side in a cavity of the retaining bolt, supporting a permanent magnet on a free end. When the retaining bolt is moved due to an external load, the permanent magnet moves in the cavity of the retaining bolt and the modification of the magnetic field thus produced can be measured by a magnetic sensor. The retaining bolt allows the braking power of the disk brake to be measured.Type: ApplicationFiled: July 27, 2009Publication date: April 26, 2012Applicant: Robert Bosch GmbHInventors: Herbert Vollert, Anton Dukart, Bertram Foitzik, Willi Nagel, Bernd Goetzelmann, Joern Tilsch
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Patent number: 8118149Abstract: The invention relates to a selective freewheeling mechanism for developing an electromechanical vehicle brake (service brake) into a parking brake. The freewheeling mechanism according to the invention has an outer ring and a locking element cage which are configured as an electric motor with a rotor and a stator. The rotor and stator can be swiveled in relation to each other when a coil is supplied with current. Due to a symmetric design, the freewheeling mechanism is advantageously insensitive to acceleration forces.Type: GrantFiled: December 22, 2006Date of Patent: February 21, 2012Assignee: Robert Bosch GmbHInventors: Chi-Thuan Cao, Dirk Hofmann, Herbert Vollert, Willi Nagel, Bertram Foitzik, Bernd Goetzelmann
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Publication number: 20110248557Abstract: A brake booster coupling device is described having a braking piston, an input piston, which is displaceable in the event of an operation of a brake input element from its starting position by a driver braking distance, a force transmission between the input piston, which is displaced by a driver braking distance below a predefined threshold value, and the braking piston is suppressed, and a booster piston, which is displaceable with the aid of the brake booster drive in such a way that the braking piston, which contacts the booster piston, is displaceable with the aid of the brake booster drive from a non-braking position into at least one braking position, the brake booster coupling device including a contact element, which is displaceable and/or deformable in the event of a displacement of the braking piston from the non-braking position into the at least one braking position in such a way that a first contact surface of the contact element contacts a second contact surface of the input piston, which is diType: ApplicationFiled: March 16, 2011Publication date: October 13, 2011Inventors: Frank Overzier, Jochen Mayer, Willi Nagel, Bernd Goetzelmann
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Publication number: 20110232407Abstract: The invention relates to helical gearing having a spindle and a counterpart, which engages on a thread of the spindle. The counterpart is, for example, tube-shaped, encloses the spindle concentrically, and has rollers on the inside of the counterpart which roll on thread flanks of the thread. By rotation of the spindle, the counterpart is driven like the nut of a spindle drive. The thread of the helical gearing according to the invention is provided with a changing pitch and thus a changing gear ratio.Type: ApplicationFiled: July 27, 2009Publication date: September 29, 2011Inventors: Armin Verhagen, Willi Nagel, Bernd Goetzelmann
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Patent number: 8020675Abstract: The invention relates to an electromechanical disk brake which has a switchable freewheel in order to be configured as a parking brake. The switchable freewheel includes a clamping roller freewheel having rollers for locking a motor shaft of an electric motor of the brake. A locating bearing of the motor shaft of an electric motor, and the freewheel are accommodated on a cover of a housing of the electric motor, and all the electric connections of the disc brake are routed via the cover. The number of components used can be reduced considerably by the integrated design. Moreover, the positional tolerances of the freewheel in relation to the motor shaft can be reduced with the aid of the invention.Type: GrantFiled: June 6, 2006Date of Patent: September 20, 2011Assignee: Robert Bosch GmbHInventors: Chi-Thuan Cao, Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann, Hans Frick
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Patent number: 8002088Abstract: A self-boosting electromechanical friction brake for a motor vehicle in which, with an electromechanical actuator, a friction brake lining can be pressed against a brake disk, and the friction brake lining is braced in the brake caliper via a wedge mechanism, which effects a self boosting. A friction brake lining which is pressed by the actuator has with a lower coefficient of friction, and in particular with less relative fluctuation in the coefficient of friction, than another friction brake lining positioned fixedly in the brake caliper. An operation-dictated fluctuation in the coefficient of friction and thus a change in the self boosting is reduced, and as a result the disk brake, with a low coefficient of friction, can be actuated with less actuation force and less actuation energy.Type: GrantFiled: April 28, 2005Date of Patent: August 23, 2011Assignee: Robert Bosch GmbHInventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann
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Publication number: 20110174581Abstract: The invention relates to a brake caliper of an electromechanical disk brake. According to the invention, in order to measure a widening of a brake caliper when the brake is activated, a rod-shaped holder which is clamped on one side, is arranged in a cavity in a yoke of the brake caliper, perpendicular to a brake disk and a movement of the free end of the holder is measured, for example by means of a magnetic sensor. The widening of the brake caliper is a measurement for the clamping force when the brake disk is actuated.Type: ApplicationFiled: September 14, 2009Publication date: July 21, 2011Inventors: Herbert Vollert, Anton Dukart, Bertram Foitzik, Willi Nagel, Bernd Goetzelmann
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Publication number: 20100243387Abstract: The invention relates to an electromechanical friction brake, for example in the form of a disc brake having an electromechanical actuation device. The electric motor of the actuation device presses a frictional brake lining against a brake disc by means of a reduction gearbox and a ball ramp mechanism. The actuation device is supported by a spring washer that is pretensioned so strongly that when the disc brake is released it acts on a segment with a falling spring characteristic; that is, a spring force exerted by the spring washer on the frictional brake lining increases with increasing tension of the disc brake.Type: ApplicationFiled: November 14, 2008Publication date: September 30, 2010Inventors: Herbert Vollert, Chi-Thuan Cao, Nguyet-Minh Cao, Bertram Foitzik, Willi Nagel, Bernd Goetzelmann, Dirk Hofmann
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Publication number: 20100193298Abstract: The invention relates to a self-amplifying electromechanical disc brake, having a friction brake lining, which is able to move on a helical path and having a rack-and-pinion mechanism for moving the friction brake lining and for actuating the disc brake. According to the invention, a rack of the rack-and-pinion mechanism is connected to the friction brake lining in articulating fashion and in the region of a pinion, an abutting support keeps the rack engaged with the pinion, with play, thus permitting the rack to pivot in order to compensate for the helical movement of the friction brake lining.Type: ApplicationFiled: July 10, 2007Publication date: August 5, 2010Applicant: ROBERT BOSCH GMBHInventors: Chi-Thuan Cao, Dirk Hofmann, Herbert Vollert, Willi Nagel, Bertram Foitzik, Bernd Goetzelmann
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Patent number: 7735613Abstract: A self-boosting electromechanical friction brake, having a friction brake lining which is displaceable for actuation in the direction of rotation of a brake disk and which is braced via roller bodies on ramps of an abutment plate. When the brake is actuated, brake disk exerts a frictional force on the brake lining pressed against it, which urges the lining in the direction of an increasingly narrow gap between the ramps and the brake disk to exert a contact pressure that is in addition to that exerted by an actuation device to attain self-boosting. The roller bodies are supported fixedly and rotatably in bearing block on the brake lining whereby the roller bodies move in slaved fashion with the brake lining and always brace the brake lining at the same points.Type: GrantFiled: November 19, 2004Date of Patent: June 15, 2010Assignee: Robert Bosch GmbHInventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann
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Patent number: 7588128Abstract: A self-boosting electromagnetic disk brake having an electromechanical actuating device and a mechanical self-boosting device that has a wedge mechanism. A wedge is displaceable parallel to a brake disk and relative to a friction brake lining, and the relative displaceability of the wedge is limited relative to the friction brake lining to one direction, by means of a slaving device. The wedge is decoupled from the friction brake lining in one direction of rotation of the brake disk. As a result, the self-boosting device is operative in only one direction of rotation of the brake disk; in the reverse direction of rotation of the brake disk, the disk brake is neutral in terms of self-help.Type: GrantFiled: November 18, 2004Date of Patent: September 15, 2009Assignee: Robert Bosch GmbHInventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann