Patents by Inventor Bernard Edwin Romig
Bernard Edwin Romig 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: 8498796Abstract: A speed control method of a vehicle including the steps of obtaining a steering angle, a velocity error and a distance error. The velocity and the distance error being determined by mathematical combinations of a GPS position, a required path and speed set points. The steering angle, velocity errors and distance error are applied to fuzzy logic membership functions to produce an output that is applied to a velocity rule base. An output from the velocity rule base is defuzzified to produce a speed signal.Type: GrantFiled: February 12, 2007Date of Patent: July 30, 2013Assignee: Deere & CompanyInventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid
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Patent number: 8444123Abstract: A suspension system for a seat of a vehicle comprises a base, a linkage, and a seat attached to the base via the linkage. A pneumatic shock absorber provides a respective resistance level against movement of the seat with respect to the base based on a corresponding pressure level of air or gas within the pneumatic shock absorber. A set of cylindrical members are spaced apart beneath the seat. A tension member is arranged to engage the cylindrical members. The tension member is attached to the seat via a bracket. An electric motor is capable of driving one of the cylindrical members. A first sensor is arranged to detect first sensor data associated with an instantaneous position of the seat versus time. A controller generates a first control signal for the electric motor to change a height of the seat in opposition to a change in the instantaneous position of the seat and a second control signal to change the pressure level.Type: GrantFiled: October 8, 2010Date of Patent: May 21, 2013Assignee: Deere & CompanyInventors: Jim Milton Shoemaker, Ronnie Dean Stahlhut, Troy Eugene Schick, Bernard Edwin Romig
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Patent number: 8373375Abstract: Embodiments of the invention comprise a multi-input range box driven by multiple electric drives. Range shifting involves momentarily increasing the current through all but a given motor, to a level that will carry the entire load, comprising specified constant power. Simultaneously, torque of the given motor is reduced to zero. The given motor is then disconnected from supplying power, is synchronized to the input speed of the new speed range, and is then engaged for the new range. The above sequence is then repeated for each remaining motors, in turn. The motor current is re-equalized for all of the motors, after all the motors have been connected to provide power at the new range. Thus, there is no interruption in power flow during a range shift, and the motors are always used to deliver power, rather than to serve as a brake.Type: GrantFiled: October 1, 2010Date of Patent: February 12, 2013Assignee: Deere & CompanyInventor: Bernard Edwin Romig
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Publication number: 20120271517Abstract: A steering control method including the steps of obtaining a heading error, obtaining a velocity value, obtaining a distance error, applying the heading error and defuzzifying an output from a steering rule base. The velocity value and the distance error are applied along with the heading error to fuzzy logic membership functions to produce an output that is applied to a steering rule base. An output from the steering rule base is defuzzified to produce a steering signal.Type: ApplicationFiled: April 28, 2012Publication date: October 25, 2012Applicant: DEERE & COMPANYInventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid
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Publication number: 20120158247Abstract: A steering control method including the steps of obtaining a heading error, obtaining a velocity value, obtaining a distance error, applying the heading error and defuzzifying an output from a steering rule base. The velocity value and the distance error are applied along with the heading error to fuzzy logic membership functions to produce an output that is applied to a steering rule base. An output from the steering rule base is defuzzified to produce a steering signal.Type: ApplicationFiled: December 15, 2010Publication date: June 21, 2012Inventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid
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Patent number: 8195364Abstract: A steering control method including the steps of obtaining a heading error, obtaining a velocity value, obtaining a distance error, applying the heading error and defuzzifying an output from a steering rule base. The velocity value and the distance error are applied along with the heading error to fuzzy logic membership functions to produce an output that is applied to a steering rule base. An output from the steering rule base is defuzzified to produce a steering signal.Type: GrantFiled: February 12, 2007Date of Patent: June 5, 2012Assignee: Deere & CompanyInventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid
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Publication number: 20120081059Abstract: Embodiments of the invention comprise a multi-input range box driven by multiple electric drives. Range shifting involves momentarily increasing the current through all but a given motor, to a level that will carry the entire load, comprising specified constant power. Simultaneously, torque of the given motor is reduced to zero. The given motor is then disconnected from supplying power, is synchronized to the input speed of the new speed range, and is then engaged for the new range. The above sequence is then repeated for each remaining motors, in turn. The motor current is re-equalized for all of the motors, after all the motors have been connected to provide power at the new range. Thus, there is no interruption in power flow during a range shift, and the motors are always used to deliver power, rather than to serve as a brake.Type: ApplicationFiled: October 1, 2010Publication date: April 5, 2012Inventor: Bernard Edwin Romig
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Patent number: 7887033Abstract: A suspension system for a seat of a vehicle comprises a base, a linkage, and a seat attached to the base via the linkage. A pneumatic shock absorber provides a respective resistance level against movement of the seat with respect to the base based on a corresponding pressure level of air or gas within the pneumatic shock absorber. An output member of a linear motor is connected to the seat via a bracket. A first sensor is arranged to detect first sensor data associated with an instantaneous position of the seat versus time. A controller generates at least one of a first control signal for the linear motor to change a height of the seat in opposition to a change in the instantaneous position of the seat and a second control signal to change the pressure level.Type: GrantFiled: August 10, 2006Date of Patent: February 15, 2011Assignee: Deere & CompanyInventors: Jim Milton Shoemaker, Ronnie Dean Stahlhut, Troy Eugene Schick, Bernard Edwin Romig
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Publication number: 20110024601Abstract: A suspension system for a seat of a vehicle comprises a base, a linkage, and a seat attached to the base via the linkage. A pneumatic shock absorber provides a respective resistance level against movement of the seat with respect to the base based on a corresponding pressure level of air or gas within the pneumatic shock absorber. A set of cylindrical members are spaced apart beneath the seat. A tension member is arranged to engage the cylindrical members. The tension member is attached to the seat via a bracket. An electric motor is capable of driving one of the cylindrical members. A first sensor is arranged to detect first sensor data associated with an instantaneous position of the seat versus time. A controller generates a first control signal for the electric motor to change a height of the seat in opposition to a change in the instantaneous position of the seat and a second control signal to change the pressure level.Type: ApplicationFiled: October 8, 2010Publication date: February 3, 2011Inventors: Jim Milton Shoemaker, Ronnie Dean Stahlhut, Troy Eugene Schick, Bernard Edwin Romig
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Patent number: 7769512Abstract: A vehicle steering control method including the steps of obtaining a heading error, obtaining a velocity value, obtaining a distance error, applying the heading error, inputting a measure of operator aggressiveness and defuzzifying an output from a steering rule base. The velocity value and the distance error are applied along with the heading error to fuzzy logic membership functions to produce an output that is applied to a steering rule base. A measure of the operator aggressiveness is input to the steering rule base. An output from the steering rule base is defuzzified to produce a steering signal.Type: GrantFiled: February 12, 2007Date of Patent: August 3, 2010Assignee: Deere & CompanyInventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid, Brian Joseph Gilmore
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Patent number: 7694946Abstract: A suspension system for a seat of a vehicle comprises a base, a linkage, and a seat attached to the base via the linkage. A pneumatic shock absorber provides a respective resistance level against movement of the seat with respect to the base based on a corresponding pressure level of air or gas within the pneumatic shock absorber. A set of cylindrical members are spaced apart beneath the seat. A tension member is arranged to engage the cylindrical members. The tension member is attached to the seat via a bracket. An electric motor is capable of driving one of the cylindrical members. A first sensor is arranged to detect first sensor data associated with an instantaneous position of the seat versus time. A controller generates a first control signal for the electric motor to change a height of the seat in opposition to a change in the instantaneous position of the seat and a second control signal to change the pressure level.Type: GrantFiled: August 10, 2006Date of Patent: April 13, 2010Assignee: Deere & CompanyInventors: Jim Milton Shoemaker, Ronnie Dean Stahlhut, Troy Eugene Schick, Bernard Edwin Romig
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Patent number: 7617890Abstract: A steering mechanism for a wheel of a self-propelled vehicle includes a wheel spindle on which the wheel is rotatably mounted, a steering motor turning a steering tube defining a generally vertical steer axis, a propulsion drive motor turning a propulsion drive shaft extending through the steering tube, and a plurality of gears providing a gear reduction ratio between the propulsion drive motor and the wheel. The wheel is offset from the steer axis and rotates on the wheel spindle if the steering motor turns the steering tube while the propulsion drive shaft is stationary.Type: GrantFiled: May 8, 2006Date of Patent: November 17, 2009Assignee: Deere & CompanyInventor: Bernard Edwin Romig
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Patent number: 7418328Abstract: Steering logic for a self-propelled vehicle having a plurality of wheels includes the steps of receiving translational velocity and angular velocity commands, determining the resultant velocity and steer angle of each wheel, and determining the wheel offset correction for each wheel based on the scrub radius of each wheel and the angular velocity command.Type: GrantFiled: May 8, 2006Date of Patent: August 26, 2008Assignee: Deere & CompanyInventor: Bernard Edwin Romig
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Publication number: 20080195281Abstract: A human perception model for a vehicle steering control method including the steps of obtaining a heading error, obtaining a velocity value, obtaining a distance error, applying the heading error, inputting a measure of operator aggressiveness and defuzzifying an output from a steering rule base. The velocity value and the distance error are applied along with the heading error to fuzzy logic membership functions to produce an output that is applied to a steering rule base. A measure of the operator aggressiveness is input to the steering rule base. An output from the steering rule base is defuzzified to produce a steering signal.Type: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Inventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid, Brian Joseph Gilmore
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Publication number: 20080195282Abstract: A steering control method including the steps of obtaining a heading error, obtaining a velocity value, obtaining a distance error, applying the heading error and defuzzrfying an output from a steering rule base. The velocity value and the distance error are applied along with the heading error to fuzzy logic membership functions to produce an output that is applied to a steering rule base.Type: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Inventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid
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Publication number: 20080195293Abstract: A speed control method of a vehicle including the steps of obtaining a steering angle, a velocity error and a distance error. The velocity and the distance error being determined by mathematical combinations of a GPS position, a required path and speed set points. The steering angle, velocity errors and distance error are applied to fuzzy logic membership functions to produce an output that is applied to a velocity rule base. An output from the velocity rule base is defuzzified to produce a speed signal.Type: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Inventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid
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Publication number: 20070278025Abstract: A suspension system for a seat of a vehicle comprises a base, a linkage, and a seat attached to the base via the linkage. A pneumatic shock absorber provides a respective resistance level against movement of the seat with respect to the base based on a corresponding pressure level of air or gas within the pneumatic shock absorber. A set of cylindrical members are spaced apart beneath the seat. A tension member is arranged to engage the cylindrical members. The tension member is attached to the seat via a bracket. An electric motor is capable of driving one of the cylindrical members. A first sensor is arranged to detect first sensor data associated with an instantaneous position of the seat versus time. A controller generates a first control signal for the electric motor to change a height of the seat in opposition to a change in the instantaneous position of the seat and a second control signal to change the pressure level.Type: ApplicationFiled: August 10, 2006Publication date: December 6, 2007Inventors: Jim Milton Shoemaker, Ronnie Dean Stahlhut, Troy Eugene Schick, Bernard Edwin Romig
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Publication number: 20070278723Abstract: A suspension system for a seat of a vehicle comprises a base, a linkage, and a seat attached to the base via the linkage. A pneumatic shock absorber provides a respective resistance level against movement of the seat with respect to the base based on a corresponding pressure level of air or gas within the pneumatic shock absorber. An output member of a linear motor is connected to the seat via a bracket. A first sensor is arranged to detect first sensor data associated with an instantaneous position of the seat versus time. A controller generates at least one of a first control signal for the linear motor to change a height of the seat in opposition to a change in the instantaneous position of the seat and a second control signal to change the pressure level.Type: ApplicationFiled: August 10, 2006Publication date: December 6, 2007Inventors: Jim Milton Shoemaker, Ronnie Dean Stahlhut, Troy Eugene Schick, Bernard Edwin Romig
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Patent number: 6456925Abstract: A control system controls the speed of the driven wheels of a vehicle having an operator controlled steering wheel, an operator controlled speed command device, steerable wheels and driven wheels. The control system includes a steering angle sensor coupled to the steering input member and generating a steering angle signal, a speed command sensor coupled to the speed command device and generating a speed command signal, and a control unit. The control unit generates driven wheel speed command signals as a function of the steering angle signal, a wheelbase of the vehicle, a distance between the driven wheels, and the speed command signal. The magnitude of the speed command signal is limited to a calculated limit value which is a function of the wheelbase of the vehicle, a distance from a driven wheel axle of the vehicle forward to a center of gravity of the vehicle, a value representing a maximum allowable centripetal acceleration, and the steering angle signal.Type: GrantFiled: September 11, 2000Date of Patent: September 24, 2002Assignee: Deere & CompanyInventor: Bernard Edwin Romig
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Patent number: 6325396Abstract: A vehicle steering assembly includes steerable wheels mounted on half fork members which are pivotally coupled the outer ends of an axle member. A rack and pinion assembly is attached to the axle member and has an input shaft coupled to a steering wheel, and a laterally movable rack member. The outer ends of the rack member are pivotally coupled via a vertical pivot pin to one end of a corresponding tie rod member. The other end of each tie rod member is pivotally coupled to one end of a connecting rod and to one end of a rocker arm. The other end of each connecting rod is pivotally coupled to a corresponding half fork member. The other end of each rocker arm is pivotally coupled to a corresponding outer end of the axle member.Type: GrantFiled: September 11, 2000Date of Patent: December 4, 2001Assignee: Deere & CompanyInventor: Bernard Edwin Romig