Patents by Inventor Willi Nagel

Willi Nagel 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).

  • Publication number: 20050125132
    Abstract: A method and a device which, when a pneumatic and/or hydraulic or electromechanical braking system of a vehicle is controlled, make it possible to set a second braking force on at least one wheel brake of one wheel in a defined manner in addition to the defined setting of a first braking force. The first braking force is generated by a first control unit using first hydraulic and/or pneumatic components, whereas the second braking force is generated at predefinable times as a function of the filling of an accumulator with a pressurized medium. The accumulator is a device separated from the first hydraulic and/or pneumatic components which is preferably mounted in the proximity of the wheel brakes and which is filled via a relative movement between at least one wheel and the vehicle body. It is therefore conceivable that, with the aid of a working cylinder attached to a wheel, the accumulator is filled with volume of a medium by utilizing the relative movement between wheel and body.
    Type: Application
    Filed: October 29, 2004
    Publication date: June 9, 2005
    Inventors: Hans-Peter Stumpp, Ansgar Traechtler, Sylvia Futterer, Willi Nagel, Armin Verhagen, Klaus-Michael Mayer, Peter Dominke
  • Publication number: 20050121267
    Abstract: The invention relates to a wheel brake for a motor vehicle including an electromechanical actuating device and a hydraulic actuating device, which are redundant. In this way, the likelihood of failure of the wheel brake is reduced. A self-boosting device increases a braking force of the wheel brake, so that an (underpressure) brake booster can be dispensed with. Wheel slip control is possible in a simple way by hydraulic actuation of the wheel brake and superposition of a braking force regulation on the electromechanical actuating device.
    Type: Application
    Filed: October 12, 2004
    Publication date: June 9, 2005
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann
  • Publication number: 20050109567
    Abstract: The invention relates to an electromechanical friction brake having an electromechanical actuating device including an electric motor and a toothed gear assembly with which a friction brake lining can be pressed against a brake body for braking. Gear wheels of the assembly have sets of helical teeth braced with rotary bearings against the resultant axial forces. Sets of helical teeth have the advantage of better synchronism and of being capable of transmitting greater torque. Moreover, if the friction brake is used as a parking brake, an axial force effected by the set of helical teeth prevents occurrences of microscopic slippage in a locking device with a clamping action and thus prevents unintended automatic release of the locking device.
    Type: Application
    Filed: October 22, 2004
    Publication date: May 26, 2005
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann
  • Publication number: 20050109566
    Abstract: The invention relates to a self-boosting electromechanical disk brake with a frame caliper equipped with a wear readjustment device which for instance is automatic and which upon tensing of the disk brake stores energy by prestressing a torsion shaft, which upon release of the disk brake converts this energy into a wear readjustment motion. In the process, a spacing between two brake lining holders of the frame caliper in the disk brake is decreased.
    Type: Application
    Filed: October 13, 2004
    Publication date: May 26, 2005
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann
  • Patent number: 6860829
    Abstract: A gear for vehicle steering systems, in which, by pivoting a shaft of a pinion in the radial direction by means of a spring element, play-free transmission of the rotary motion from the shaft to a power takeoff shaft is assured.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: March 1, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Michael Bock, Willi Nagel, Rolf Knecht
  • Patent number: 6837824
    Abstract: A final control element for superimposed steering engagement of a vehicle steering system with a superposition gear having two input shafts and one output shaft, in order to attain a radial freedom from play, the superposition gear is provided with a two-stage, modified planetary gear, having a planet carrier, at least one stepped planet comprising two axially aligned planet wheels connected to one another fixed against relative rotation, and two sun wheels or ray wheels; the first input shaft is connected to one sun or ray wheel, and the output shaft is connected to the other sun or ray wheel, fixed against relative rotation, while the planet carrier is drivable via the second input shaft, and the at least one stepped planet and the sun wheels are biasing toward provided for suppressing a tooth flank play that occurs between.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: January 4, 2005
    Assignees: Robert Bosch GmbH, IMS Morat Soehne GmbH
    Inventors: Gerd Reimann, Michael Bock, Willi Nagel, Rolf Knecht, Heinz Gert Hagedorn, Ruediger Tinter, Stephan Oberle, Ralph Eble
  • Publication number: 20040262101
    Abstract: An electromechanically actuatable disk brake with a self-boosting device includes a wear readjusting device which can for instance be adjusted by means of an electric motor as an actuator, to compensate for wear of a restoring device.
    Type: Application
    Filed: June 23, 2004
    Publication date: December 30, 2004
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik
  • Publication number: 20040262098
    Abstract: An electromechanically actuated disk brake with mechanical self-boosting includes an automatic wear readjusting device, which can for instance have a positive-engagement detent device. An increased air clearance caused by wear of friction brake linings is prevented by the invention, which thus also prevents an increase in the displacement of the friction brake lining in the direction of rotation of the brake disk when the disk brake is actuated in order to attain the self-boosting.
    Type: Application
    Filed: June 23, 2004
    Publication date: December 30, 2004
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik
  • Publication number: 20040262994
    Abstract: A method and a device for monitoring and controlling the braking system of a vehicle. In this context, for the monitoring, at least one braking variable representing the retarding force of at least one wheel brake is recorded, and is compared to a predefined threshold value. As a function of the comparison and of the driving situation of the vehicle and/or the operating state, at least one vehicle component located in the vehicle carries out at least one suitable measure during a braking procedure which modifies the slowdown at at least one wheel brake. In this context, it is observed that the overall slowdown of the vehicle should be held constant during the modification of the slowdown at the at least one wheel brake, or in any event, should be changed insignificantly.
    Type: Application
    Filed: April 9, 2004
    Publication date: December 30, 2004
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Rolf Maier-Landgrebe, Andreas Henke, Bertram Foitzik
  • Publication number: 20040238294
    Abstract: A disk brake having a first friction brake lining, which for braking can be pressed against a brake disk by pivoting of a support lever. A brake caliper is embodied as a floating caliper and an adjusting device is provided with which a second friction brake lining is adjustable transversely to the brake disk. In this way, a support angle (&agr;) and thus a magnitude of the self-boosting of the disk brake can be varied.
    Type: Application
    Filed: May 26, 2004
    Publication date: December 2, 2004
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann
  • Publication number: 20040187591
    Abstract: A sensor arrangement for detecting mechanical forces (F) with at least one magnetic-field-dependent sensor element, in which the output signal of the sensor element depends on the deflection of a mechanical component in the magnetic field in response to the exertion of force. The mechanical component here is a spring, which changes its location in the magnetic field in response to the exertion of force and is a component of a brake system for a motor vehicle; the at least one sensor element being located in the force flow of the brake caliper.
    Type: Application
    Filed: March 1, 2004
    Publication date: September 30, 2004
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik
  • Publication number: 20040171453
    Abstract: In an actuator for superimposed steering engagement in a vehicle steering system, having a first and second input shaft (12, 14), an output shaft (13) coaxial with the first input shaft (12), and a superposition gear (15) disposed between the shafts (12-14) and received in an actuator housing (11), the superposition gear (15) has a two-stage, modified planetary gear (16) that has respective sun wheels (25, 26), connected in a manner fixed against relative rotation to the first input shaft (12) and to the output shaft (13), respectively, a satellite carrier (21) that can be driven by the second input shaft (14), and at least one stepped planet (22), retained rotatably on it, with two respective planet wheels (23, 24) that mesh with the sun wheels (25, 26).
    Type: Application
    Filed: December 8, 2003
    Publication date: September 2, 2004
    Inventors: Michael Bock, Willi Nagel
  • Publication number: 20040154881
    Abstract: An electromechanical disk brake with mechanical self-boosting for instance by means of a ramp mechanism, which is intended for use in motor vehicles in which the ramp mechanism is braced in a circumferential direction relative to a brake disk on a brake bracket, in order thereby to keep a caliper guide of a floating caliper free of frictional and braking forces of the disk brake.
    Type: Application
    Filed: January 12, 2004
    Publication date: August 12, 2004
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik
  • Publication number: 20040134723
    Abstract: The invention relates to an electromechanical brake with self-boosting by means of a wedge mechanism. An actuating force is exerted on the friction brake lining via toothing sets that mesh with one another. By means of an engagement angle of the toothing sets, a favorable force introduction angle of the actuating force on the friction brake lining can be attained. In addition, by using a nonround gear wheel and/or a non-straight rack as the toothing sets, flaring of a caliper upon braking and an infeeding motion of the friction brake lining transversely to a brake disk can be compensated for.
    Type: Application
    Filed: December 29, 2003
    Publication date: July 15, 2004
    Inventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik
  • Publication number: 20040029671
    Abstract: A gear for vehicle steering systems is proposed, in which, by pivoting a shaft (5) of a pinion (17) in the radial direction (23) by means of a spring element (25), play-free transmission of the rotary motion from the shaft (5) to a power takeoff shaft (21) is assured.
    Type: Application
    Filed: August 27, 2003
    Publication date: February 12, 2004
    Inventors: Michael Bock, Willi Nagel, Rolf Knecht
  • Publication number: 20030178270
    Abstract: The improved drum brake includes an anchor plate, a drum, and a drum ring and brake shoes, which cooperate with the drum and are disposed in a drum chamber between the anchor plate and the drum, and ventilation openings on the drum.
    Type: Application
    Filed: February 25, 2003
    Publication date: September 25, 2003
    Inventors: Herbert Vollert, Willi Nagel, Bertram Foitzik, Rolf Knecht
  • Publication number: 20030148846
    Abstract: In a final control element for superimposed steering engagement of a vehicle steering system with a superposition gear (12) that has two input shafts (13, 14) and one output shaft (15), in order to attain a radial freedom from play, the superposition gear (12) is provided with a two-stage, modified planetary gear (25), which has a planet carrier (30), at least one stepped planet (31) that comprises two axially aligned planet wheels (311, 312) connected to one another in a manner fixed against relative rotation, and two sun wheels (32, 33); the first input shaft (13) is connected to one sun wheel (32), and the output shaft (15) is connected to the other sun wheel (33), in each case in a manner fixed against relative rotation, while the planet carrier (30) is drivable via the second input shaft (14), and means are provided for suppressing a tooth flank play that occurs between the at least stepped planet (31) and the sun wheels (32, 33).
    Type: Application
    Filed: February 6, 2003
    Publication date: August 7, 2003
    Inventors: Gerd Reimann, Michael Bock, Willi Nagel, Rolf Knecht, Heinz Gert Hagedorn, Ruediger Tinter, Stephan Oberle, Ralph Eble
  • Patent number: 6422336
    Abstract: An electrically supported power steering system for motor vehicles includes an input shaft, which is mechanically linked to a steering wheel for transmitting a steering torque required for steering of wheels to be steered. An output element is mechanically linked to the wheels to be steered. An electric motor, through which a servo force can be applied directly or indirectly to the output element, is arranged on the power steering system. The input shaft and the output element are connected to one another via a torsion bar. A detection unit for detection of a torque acting on the input shaft and of other steering-specific parameters includes a single pulse generator designed as a magnet ring and at least one magnetoresistive sensor.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: July 23, 2002
    Assignee: ZF Lenksysteme GmbH
    Inventors: Wolfgang Abele, Peter Brenner, Martin Budaker, Willi Nagel, Klaus Noder
  • Patent number: 6250420
    Abstract: An electrically assisted power steering system for motor vehicles includes an input shaft (5), which is operatively connected to a steering wheel, for transmitting a steering torque required to steer the vehicle wheels that are to be steered. An output member is operatively connected to the wheels to be steered. A servomotor (7), by which an auxiliary force can be exerted on the input shaft (5) or the output member, is disposed in the power steering system. The input shaft (5) and the output member are connected to one another via a torsion bar (4). A detection unit for detecting a steering torque acting on the input shaft (5) includes one magnetic ring (12, 14) each, connected to the input shaft (5) and the output member, and one associated sensor (13, 15) each. Each magnetic ring (12, 14) has the same number of magnetic pole pairs.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: June 26, 2001
    Assignee: ZF Friedrichshafen AG
    Inventors: Peter Brenner, Martin Budaker, Willi Nagel, Uwe Loreit
  • Patent number: 6175231
    Abstract: An electronically assisted power steering system for motor vehicles contains a primary shaft (4), which is in operative connection with a manual steering wheel for transmitting the steering torque required for steering the steerable wheels of the vehicle. An auxiliary force can be exerted on the primary shaft (4) or the output member by a servo motor (6). A detection unit is used for non-contact detection of the direction and value of a steering angle and/or other movement-dependent values occurring at the primary shaft (4). The detection unit includes at least one pulse transmitter (13) connected with the primary shaft (4) or the output member, and at least one sensor (10). The pulse transmitter (13) is located in the interior of a housing (1), and the sensor (10) outside the housing (1). There is a gap between the pulse transmitter (13) and the sensor (10). The housing (1) is closed in the area located between the pulse transmitter (13) and the sensor (10).
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: January 16, 2001
    Assignee: ZF Friedrichshafen AG
    Inventors: Martin Budaker, Gerhard H{umlaut over (a)}gele, Willi Nagel