Patents by Inventor Michael Tiller
Michael Tiller 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: 8934195Abstract: Thus, if a shock or other disturbance to a disc stack spindle bearing assembly occurs that tilts the bearing assembly, the resulting motion is both a tilting, and a motion which is axial. If a shock axially moves the hub assembly, only an axial motion occurs. Thus the system has a non-linear behavior. Pursuant to this invention, when a tilting disturbance occurs, and some of it is dissipated in a net axial movement at a different frequency, energy is subtracted out of the system with motion that is not linearly related to the disturbance that created it.Type: GrantFiled: September 14, 2012Date of Patent: January 13, 2015Assignee: Seagate Technology LLCInventors: Hans Leuthold, Susan Immisch, Saul Ceballos, Michael Tiller
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Publication number: 20130071053Abstract: Thus, if a shock or other disturbance to a disc stack spindle bearing assembly occurs that tilts the bearing assembly, the resulting motion is both a tilting, and a motion which is axial. If a shock axially moves the hub assembly, only an axial motion occurs. Thus the system has a non-linear behavior. Pursuant to this invention, when a tilting disturbance occurs, and some of it is dissipated in a net axial movement at a different frequency, energy is subtracted out of the system with motion that is not linearly related to the disturbance was that created it.Type: ApplicationFiled: September 14, 2012Publication date: March 21, 2013Applicant: SEAGATE TECHNOLOGY LLCInventors: Hans Leuthold, Susan Immisch, Saul Ceballos, Michael Tiller
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Patent number: 8339731Abstract: Thus, if a shock or other disturbance to a disc stack spindle bearing assembly occurs that tilts the bearing assembly, the resulting motion is both a tilting, and a motion which is axial. If a shock axially moves the hub assembly, only an axial motion occurs. Thus the system has a non-linear behavior. Pursuant to this invention, when a tilting disturbance occurs, and some of it is dissipated in a net axial movement at a different frequency, energy is subtracted out of the system with motion that is not linearly related to the disturbance was that created it.Type: GrantFiled: May 12, 2003Date of Patent: December 25, 2012Assignee: Seagate Technology LLCInventors: Hans Leuthold, Susan Immisch, Saul Ceballos, Michael Tiller
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Patent number: 7380890Abstract: A system is provided for controlling automatic brake systems to avoid pulsing vehicle brakes at certain natural vibration frequencies of the vehicle's mechanical systems such as a powertrain and driveline. The natural vibration frequencies of the vehicle's systems are determined and correlated with a range of possible braking regimes implemented by an on-board automatic brake control, such as an anti-lock braking (ABS) system. A proposed, normally appropriate ABS braking response to a sudden braking condition is either modified, accelerated or delayed when the proposed response is deemed likely to excite a vehicle natural frequency. The system improves ABS operation in vehicles having high effective inertia powertrains, such as those used in hybrid electric vehicles.Type: GrantFiled: February 17, 2004Date of Patent: June 3, 2008Assignee: Ford Global Technologies LLCInventors: Bill Tobler, Michael Tiller, Paul Bowles
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Patent number: 7349788Abstract: A system is provided for controlling the inertia of a vehicle's powertrain during sudden braking events. Torque generated by rapid deceleration of the vehicle's drive wheels during braking is prevented from being transmitted through the vehicle's driveline by a clutch which disengages the drive wheels from high effective inertia components in the driveline. The clutch is actuated by a signal produced by any of several sensors on the vehicle which sense a sudden braking event. Driveline speed is adjusted to match drive wheel speed before the clutch is deactivated to reengage driveline with the drive wheels.Type: GrantFiled: November 25, 2006Date of Patent: March 25, 2008Assignee: Ford Global Technologies LLCInventors: Bill Tohler, Michael Tiller, Paul Bowles
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Patent number: 7292917Abstract: A method is disclosed for attenuating vibrations of an engine in a hybrid electric vehicle powertrain having a subsystem comprising an electric motor, a generator and a battery. Engine torque is coordinated with motor torque during engine start events and engine stopping events using gearing that defines in part separate torque flow paths for the engine and the motor. A filtered motor speed is used to compute active motor torque damping.Type: GrantFiled: July 22, 2005Date of Patent: November 6, 2007Assignee: Ford Global Technologies, LLCInventors: Ming Kuang, Fazal Syed, Paul Niessen, Michael Tiller, Prabhakar Patil, Sunny Khosla
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Publication number: 20070142993Abstract: A system is provided for controlling the inertia of a vehicle's powertrain during sudden braking events. Torque generated by rapid deceleration of the vehicle's drive wheels during braking is prevented from being transmitted through the vehicle's driveline by a clutch which disengages the drive wheels from high effective inertia components in the driveline. The clutch is actuated by a signal produced by any of several sensors on the vehicle which sense a sudden braking event. Driveline speed is adjusted to match drive wheel speed before the clutch is deactivated to reengage driveline with the drive wheels.Type: ApplicationFiled: November 25, 2006Publication date: June 21, 2007Applicant: Ford Motor CompanyInventors: Bill Tohler, Michael Tiller, Paul Bowles
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Patent number: 7197383Abstract: A control system limits reactive torque in a powertrain that is generated when braking force is applied to traction wheels during a sudden stop or other sudden braking event. The reactive torque generated at the traction wheels is prevented from being transmitted upstream through the driveline and powertrain by using a slip type clutch in the driveline to limit the upstream transfer of the reactive wheel torque. The clutch is directly actuated by the reactive torque and therefore does not require special controls or monitoring systems to sense the braking event. The clutch pressure may be automatically adjusted in response to certain operating conditions or events, thereby adjusting the point at which the clutch begins to slip due to reactive wheel torque.Type: GrantFiled: February 17, 2004Date of Patent: March 27, 2007Assignee: Ford Global Technologies, LLCInventors: Bill Tobler, Michael Tiller, Paul Bowles
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Patent number: 7193811Abstract: Thus, if a shock or other disturbance to the system occurs that tilts the bearing assembly, the resulting motion is both a tilting, and a motion which is axial. If a shock axially moves the hub assembly, only an axial motion occurs. Thus the system has a non-linear behavior. Pursuant to this invention, when a tilting disturbance occurs, and some of it is dissipated in a net axial movement at a different frequency, energy is subtracted out of the system with motion that is not linearly related to the disturbance was that created it.Type: GrantFiled: May 7, 2003Date of Patent: March 20, 2007Assignee: Seagate Technology LLCInventors: Hans Leuthold, Susan Immisch, Saul Ceballos, Michael Tiller
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Patent number: 7151987Abstract: A system is provided for controlling the inertia of a vehicle's powertrain during sudden braking events. Torque generated by rapid deceleration of the vehicle's drive wheels during braking is prevented from being transmitted through the vehicle's driveline by a clutch which disengages the drive wheels from high effective inertia components in the driveline. The clutch is actuated by a signal produced by any of several sensors on the vehicle which sense a sudden braking event. Driveline speed is adjusted to match drive wheel speed before the clutch is deactivated to reengage driveline with the drive wheels.Type: GrantFiled: February 17, 2004Date of Patent: December 19, 2006Assignee: Ford Global Technologies, LLCInventors: Bill Tobler, Michael Tiller, Paul Bowles
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Publication number: 20060030979Abstract: A method is disclosed for attenuating vibrations of an engine in a hybrid electric vehicle powertrain having a subsystem comprising an electric motor, a generator and a battery. Engine torque is coordinated with motor torque during engine start events and engine stopping events using gearing that defines in part separate torque flow paths for the engine and the motor. A filtered motor speed is used to compute active motor torque damping.Type: ApplicationFiled: July 22, 2005Publication date: February 9, 2006Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Ming Kuang, Fazal Syed, Paul Niessen, Michael Tiller, Prabhakar Patil, Sunny Khosla
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Publication number: 20050182532Abstract: A system is provided for controlling the inertia of a vehicle's powertrain during sudden braking events. Torque generated by rapid deceleration of the vehicle's drive wheels during braking is prevented from being transmitted through the vehicle's driveline by a clutch which disengages the drive wheels from high effective inertia components in the driveline. The clutch is actuated by a signal produced by any of several sensors on the vehicle which sense a sudden braking event. Driveline speed is adjusted to match drive wheel speed before the clutch is deactivated to reengage driveline with the drive wheels.Type: ApplicationFiled: February 17, 2004Publication date: August 18, 2005Inventors: Bill Tobler, Michael Tiller, Paul Bowles
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Publication number: 20050179316Abstract: A system is provided for controlling automatic brake systems to avoid pulsing vehicle brakes at certain natural vibration frequencies of the vehicle's mechanical systems such as a powertrain and driveline. The natural vibration frequencies of the vehicle's systems are determined and correlated with a range of possible braking regimes implemented by an on-board automatic brake control, such as an anti-lock braking (ABS) system. A proposed, normally appropriate ABS braking response to a sudden braking condition is either modified, accelerated or delayed when the proposed response is deemed likely to excite a vehicle natural frequency. The system improves ABS operation in vehicles having high effective inertia powertrains, such as those used in hybrid electric vehicles.Type: ApplicationFiled: February 17, 2004Publication date: August 18, 2005Inventors: Bill Tobler, Michael Tiller, Paul Bowles
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Publication number: 20050182533Abstract: A control system limits reactive torque in a powertrain that is generated when braking force is applied to traction wheels during a sudden stop or other sudden braking event. The reactive torque generated at the traction wheels is prevented from being transmitted upstream through the driveline and powertrain by using a slip type clutch in the driveline to limit the upstream transfer of the reactive wheel torque. The clutch is directly actuated by the reactive torque and therefore does not require special controls or monitoring systems to sense the braking event. The clutch pressure may be automatically adjusted in response to certain operating conditions or events, thereby adjusting the point at which the clutch begins to slip due to reactive wheel torque.Type: ApplicationFiled: February 17, 2004Publication date: August 18, 2005Inventors: Bill Tobler, Michael Tiller, Paul Bowles
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Publication number: 20040223254Abstract: Thus, if a shock or other disturbance to a disc stack spindle bearing assembly occurs that tilts the bearing assembly, the resulting motion is both a tilting, and a motion which is axial. If a shock axially moves the hub assembly, only an axial motion occurs. Thus the system has a non-linear behavior. Pursuant to this invention, when a tilting disturbance occurs, and some of it is dissipated in a net axial movement at a different frequency, energy is subtracted out of the system with motion that is not linearly related to the disturbance was that created it.Type: ApplicationFiled: May 12, 2003Publication date: November 11, 2004Applicant: SEAGATE TECHNOLOGY LLCInventors: Hans Leuthold, Susan Immisch, Saul Ceballos, Michael Tiller
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Publication number: 20030227713Abstract: Thus, if a shock or other disturbance to the system occurs that tilts the bearing assembly, the resulting motion is both a tilting, and a motion which is axial. If a shock axially moves the hub assembly, only an axial motion occurs. Thus the system has a non-linear behavior. Pursuant to this invention, when a tilting disturbance occurs, and some of it is dissipated in a net axial movement at a different frequency, energy is subtracted out of the system with motion that is not linearly related to the disturbance was that created it.Type: ApplicationFiled: May 7, 2003Publication date: December 11, 2003Inventors: Hans Leuthold, Susan Immisch, Saul Ceballos, Michael Tiller