Patents by Inventor Thomas Baudendistel
Thomas Baudendistel 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: 8672104Abstract: A system and method of controlling engine vibration mounted within a vehicle including at least one hydraulic mount, each mount including a fluid chamber. A pair of accelerometers sense relative acceleration across the mount between the engine and the frame and generate a relative acceleration signal. A control unit is electrically connected to the accelerometers. The control unit is adapted to generate an electronic control signal in response to the relative acceleration signal. The control device is responsive to the electric control signal for controlling the damping force of the hydraulic mount. A control algorithm calibrates the control unit such that maximum vibration damping occurs at and around the engine resonance bounce frequency.Type: GrantFiled: September 23, 2011Date of Patent: March 18, 2014Inventors: Prasad V. Gade, Sanjiv G. Tewani, Thomas A. Baudendistel
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Publication number: 20120006635Abstract: A system and method of controlling engine vibration mounted within a vehicle including at least one hydraulic mount, each mount including a fluid chamber. A pair of accelerometers sense relative acceleration across the mount between the engine and the frame and generate a relative acceleration signal. A control unit is electrically connected to the accelerometers. The control unit is adapted to generate an electronic control signal in response to the relative acceleration signal. The control device is responsive to the electric control signal for controlling the damping force of the hydraulic mount. A control algorithm calibrates the control unit such that maximum vibration damping occurs at and around the engine resonance bounce frequency.Type: ApplicationFiled: September 23, 2011Publication date: January 12, 2012Inventors: Prasad V. Gade, Sanjiv G. Tewani, Thomas A. Baudendistel
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Patent number: 8046129Abstract: A system and method of controlling engine vibration mounted within a vehicle including at least one hydraulic mount, each mount including a fluid chamber. A pair of accelerometers sense relative acceleration across the mount between the engine and the frame and generate a relative acceleration signal. A control unit is electrically connected to the accelerometers. The control unit is adapted to generate an electronic control signal in response to the relative acceleration signal. The control device is responsive to the electric control signal for controlling the damping force of the hydraulic mount. A control algorithm calibrates the control unit such that maximum vibration damping occurs at and around the engine resonance bounce frequency.Type: GrantFiled: October 29, 2003Date of Patent: October 25, 2011Assignee: BWI Company Limited S.A.Inventors: Prasad V. Gade, Sanjiv G. Tewani, Thomas A. Baudendistel
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Patent number: 7527130Abstract: A harmonic drive linear actuator includes a first annular member defining a longitudinal axis and lying on a plane, which is perpendicular to the longitudinal axis. The first member is relatively flexible along a direction parallel to the plane. A second member is substantially coaxially aligned with the first member to define opposed substantially cylindrical surfaces and are fixed for non-relative rotation about the longitudinal axis. An actuator is provided for flexing the first annular member into at least two spaced-apart points of contact between the opposed surfaces and for sequentially flexing the first member to rotate the at least two points of contact circumferentially about the axis. The first and second surfaces define cooperating thread-forms thereon, which selectively engage to effect controlled, bidirectional relative axial displacement between the members in response to sequential flexure of the first member.Type: GrantFiled: April 26, 2006Date of Patent: May 5, 2009Assignee: Delphi Technologies, Inc.Inventors: Thomas A. Baudendistel, Harald Klode
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Patent number: 7469593Abstract: A force sensor system including at least one portion of piezo-electric material and a thrust bearing having at least one roller associated therewith, the roller being adapted to move relative to the thrust bearing and contact the portion of piezo-electric material when the thrust bearing is subjected to an external force.Type: GrantFiled: January 23, 2006Date of Patent: December 30, 2008Assignee: Delphi Technologies, Inc.Inventors: Jon T. Zumberge, Thomas A. Baudendistel
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Publication number: 20080191691Abstract: A first magnetic encoder assembly includes a magnetic encoder ring. The magnetic encoder ring has a circumferential surface and a magnetic field. The magnetic field has a direction which substantially continuously varies in angle as one travels along the circumferential surface. A second magnetic encoder assembly includes a substantially-linearly-extending magnetic encoder strip. The magnetic encoder strip has a magnetic working length and a magnetic field. The magnetic field has a direction which substantially continuously varies in angle as one travels along the magnetic working length.Type: ApplicationFiled: February 13, 2007Publication date: August 14, 2008Inventors: Thomas A. Baudendistel, Melinda D. Simpson, Alan H. Green, Jerold L. Barlage
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Patent number: 7362096Abstract: An apparatus (10) is set forth for measuring a return signal of a magnetostrictive sensor (20) that detects a force, torque, or pressure. The return signal includes noise, a DC resistance (44), an AC resistance and an inductance and the inductance is shifted ninety degrees from the AC resistance. The apparatus (10) includes a sensor filter (22) to remove the noise from the return signal. A sensor filter (22) shifts the return signal and more specifically, the inductance by an additional angle and the sum of the additional angle and the ninety degrees phase shift is defined as the final detection angle. To detect the inductance at the final detection angle, a wave filter (16) and a reference filter (28) shifts a reference signal by the final detection angle to trigger a first demodulator (26) to detect the inductance at the final detection angle. The inductance detected by the first demodulator (26) varies due to temperature.Type: GrantFiled: October 21, 2005Date of Patent: April 22, 2008Assignee: Delphi Technologies, Inc.Inventors: Larry M. Oberdier, Thaddeus Schroeder, Robert J. Disser, Tina M. Dewar, Thomas A. Baudendistel, Bruno Lequesne, Donald T. Morelli
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Publication number: 20070169560Abstract: A force sensor system including at least one portion of piezo-electric material and a thrust bearing having at least one roller associated therewith, the roller being adapted to move relative to the thrust bearing and contact the portion of piezo-electric material when the thrust bearing is subjected to an external force.Type: ApplicationFiled: January 23, 2006Publication date: July 26, 2007Inventors: Jon Zumberge, Thomas Baudendistel
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Patent number: 7234361Abstract: A sensor assembly for measuring force along an axis (F) comprises an inductance coil extending around the axis (F) for establishing a loop of magnetic flux looping axially through the coil and extending around the axis (F) to define a donut shaped ring of magnetic flux surrounding the axis (F). A core of magnetostrictive material provides a primary path for the magnetic flux in a first portion of the loop of magnetic flux and a magnetic carrier provides a return path for magnetic flux in a second portion of the loop of magnetic flux as the magnetic flux circles the coil through the core and the carrier. A first interface extends radially between the core and the carrier whereby the core and the carrier are urged together at the interface in response to a force applied parallel to the axis (F). Various embodiments or combinations of the core and carrier are illustrated in FIGS. 3–7.Type: GrantFiled: January 11, 2005Date of Patent: June 26, 2007Assignee: Delphi Technologies, Inc.Inventors: Bruno P. B. Lequesne, Thaddeus Schroeder, Donald T. Morelli, Thomas A. Baudendistel
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Publication number: 20070096724Abstract: An apparatus (10) is set forth for measuring a return signal of a magnetostrictive sensor (20) that detects a force, torque, or pressure. The return signal includes noise, a DC resistance (44), an AC resistance and an inductance and the inductance is shifted ninety degrees from the AC resistance. The apparatus (10) includes a sensor filter (22) to remove the noise from the return signal. A sensor filter (22) shifts the return signal and more specifically, the inductance by an additional angle and the sum of the additional angle and the ninety degrees phase shift is defined as the final detection angle. To detect the inductance at the final detection angle, a wave filter (16) and a reference filter (28) shifts a reference signal by the final detection angle to trigger a first demodulator (26) to detect the inductance at the final detection angle. The inductance detected by the first demodulator (26) varies due to temperature.Type: ApplicationFiled: October 21, 2005Publication date: May 3, 2007Inventors: Larry Oberdier, Thaddeus Schroeder, Robert Disser, Tina Dewar, Thomas Baudendistel, Bruno Lequesne, Donald Morelli
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Publication number: 20070080680Abstract: An apparatus, sensor, and a method for measuring an applied strain are provided. The apparatus includes a strain sensor comprising an electrically conductive member composed of a magnetostrictive material. The apparatus further includes a signal generator electrically coupled to the electrically conductive member. The signal generator is configured to generate an electrical current that propagates through the electrically conductive member. The apparatus further includes a measuring circuit electrically coupled to the electrically conductive member. The measuring circuit is configured to measure at least one of an amount of inductance, resistance, and impedance of the electrically conductive member. The apparatus further includes a processor electrically coupled to the measuring circuit. The processor is configured to calculate the amount of force applied to the strain sensor based on at least one of the amount of inductance, resistance, and impedance of the electrically conductive member.Type: ApplicationFiled: October 6, 2005Publication date: April 12, 2007Inventors: Thaddeus Schroeder, Bruno Lequesne, Donald Morelli, Thomas Baudendistel
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Publication number: 20060288816Abstract: A harmonic drive linear actuator includes a first annular member defining a longitudinal axis and lying on a plane, which is perpendicular to the longitudinal axis. The first member is relatively flexible along a direction parallel to the plane. A second member is substantially coaxially aligned with the first member to define opposed substantially cylindrical surfaces and are fixed for non-relative rotation about the longitudinal axis. An actuator is provided for flexing the first annular member into at least two spaced-apart points of contact between the opposed surfaces and for sequentially flexing the first member to rotate the at least two points of contact circumferentially about the axis. The first and second surfaces define cooperating thread-forms thereon, which selectively engage to effect controlled, bidirectional relative axial displacement between the members in response to sequential flexure of the first member.Type: ApplicationFiled: April 26, 2006Publication date: December 28, 2006Inventors: Thomas Baudendistel, Harald Klode
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Publication number: 20060283289Abstract: A harmonic drive motor includes a first annular member, concentric second and third members, and a device for flexing the first annular member. The first annular member has a longitudinal axis and is flexible. The second member is relatively rigid and is substantially coaxially aligned externally of the first annular member, and the third member is relatively rigid and is substantially coaxially aligned internally of the first annular member. One of the second and third members is rotatable about the longitudinal axis and the other is relatively non-rotatable. The flexing device flexes the first annular member into at least two spaced-apart points of contact with the inner diameter surface of the second member and into at least two spaced-apart points of contact with the outer diameter surface of the third member.Type: ApplicationFiled: June 9, 2006Publication date: December 21, 2006Inventors: Thomas Baudendistel, Ronald Smith, Harald Klode
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Patent number: 7146866Abstract: A magnetostrictive strain sensor (10) includes a magnetostrictive core (12) comprising a magnetostrictive material, such as a nickel-iron alloy, able to conduct a magnetic flux and whose permeability is alterable by application of a strain. A conductive coil (14) is proximate the magnetostrictive core (12) to generate the magnetic flux when electrically excited. A shell (16) surrounds the conductive coil (14) and the magnetostrictive core (12) for providing a conductive return path for the magnetic flux. An excitation source (18) is electrically connected to the conductive coil (14) for electrically exciting the conductive coil (14) with an alternating current having a constant magnitude. An in-phase voltage circuit (22) is electrically connected across the conductive coil (14). The in-phase voltage circuit (22) senses an in-phase voltage that is in-phase with the alternating current. The in-phase voltage varies correspondingly to the strain subjected to the magnetostrictive core (12).Type: GrantFiled: October 25, 2004Date of Patent: December 12, 2006Assignee: Delphi Technologies, Inc.Inventors: Donald T. Morelli, Bruno Lequesne, Larry M. Oberdier, Thomas A. Baudendistel
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Patent number: 7104137Abstract: A magnetostrictive fluid-pressure sensor includes annular inner and outer cylinders, a first connector, annular second and third connectors, and first and second coils. The inner cylinder surrounds a fluid-receiving bore. At least one of the cylinders is a magnetostrictive cylinder. The first connector connects the first ends of the cylinders and has a first portion extending radially inward of the inner cylinder. The second connector connects the second ends of the cylinders and defines a fluid inlet. The third connector connects the cylinders and is positioned longitudinally between the first and second connectors. The first coil is positioned radially between the inner and outer cylinders and longitudinally between the first and third connectors. The second coil is positioned radially between the inner and outer cylinders and longitudinally between the second and third connectors.Type: GrantFiled: April 20, 2004Date of Patent: September 12, 2006Assignee: Delphi Technologies, Inc.Inventors: Thomas A. Baudendistel, Harald Klode, Donald T. Morelli, Bruno P. B. Lequesne
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Patent number: 7093499Abstract: A force sensor, or a method, determines a force using at least a measured inductance in a coil wherein a quantum tunneling composite is located in a magnetic path created by the coil, is positioned in a load path of the force, and is under strain from the force. A strain sensor, or a method, determines a strain using at least a measured inductance in a coil wherein a quantum tunneling composite is located in a magnetic path created by the coil, is positioned in a load path of a force, and is under strain from the force.Type: GrantFiled: December 21, 2004Date of Patent: August 22, 2006Assignee: Delphi Technologies, Inc.Inventor: Thomas A. Baudendistel
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Publication number: 20060169554Abstract: A method for detecting an onset of clamping force in a system including the steps of introducing a vibration into the system, monitoring the vibration, and identifying a relative change in the vibration.Type: ApplicationFiled: January 31, 2005Publication date: August 3, 2006Inventor: Thomas Baudendistel
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Publication number: 20060173592Abstract: A system and method of controlling engine vibration mounted within a vehicle including at least one hydraulic mount, each mount including a fluid chamber. A pair of accelerometers sense relative acceleration across the mount between the engine and the frame and generate a relative acceleration signal. A control unit is electrically connected to the accelerometers. The control unit is adapted to generate an electronic control signal in response to the relative acceleration signal. The control device is responsive to the electric control signal for controlling the damping force of the hydraulic mount. A control algorithm calibrates the control unit such that maximum vibration damping occurs at and around the engine resonance bounce frequency.Type: ApplicationFiled: October 29, 2003Publication date: August 3, 2006Inventors: Prasad Gade, Sanjiv Tewani, Thomas Baudendistel
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Publication number: 20060150743Abstract: A sensor assembly for measuring force along an axis (F) comprises an inductance coil extending around the axis (F) for establishing a loop of magnetic flux looping axially through the coil and extending around the axis (F) to define a donut shaped ring of magnetic flux surrounding the axis (F). A core of magnetostrictive material provides a primary path for the magnetic flux in a first portion of the loop of magnetic flux and a magnetic carrier provides a return path for magnetic flux in a second portion of the loop of magnetic flux as the magnetic flux circles the coil through the core and the carrier. A first interface extends radially between the core and the carrier whereby the core and the carrier are urged together at the interface in response to a force applied parallel to the axis (F). Various embodiments or combinations of the core and carrier are illustrated in FIGS. 3-7.Type: ApplicationFiled: January 11, 2005Publication date: July 13, 2006Inventors: Bruno Lequesne, Thaddeus Schroeder, Donald Morelli, Thomas Baudendistel
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Publication number: 20060137464Abstract: A force sensor, or a method, determines a force using at least a measured inductance in a coil wherein a quantum tunneling composite is located in a magnetic path created by the coil, is positioned in a load path of the force, and is under strain from the force. A strain sensor, or a method, determines a strain using at least a measured inductance in a coil wherein a quantum tunneling composite is located in a magnetic path created by the coil, is positioned in a load path of a force, and is under strain from the force.Type: ApplicationFiled: December 21, 2004Publication date: June 29, 2006Inventor: Thomas Baudendistel