Patents by Inventor Joel E. Birsching
Joel E. Birsching 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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Publication number: 20230271577Abstract: A method includes receiving a handwheel angle signal, generating a handwheel speed signal and a handwheel acceleration signal, and synchronizing the handwheel speed signal and the handwheel acceleration signal. The method also includes delaying the handwheel angle signal, calculating a sum of the delayed handwheel angle signal and a phase value, converting the sum of the delayed handwheel angle signal and the phase value to radians, determining an offset correction value by calculating a sine function value of the converted sum of the operator torque estimation signal and the phase value, calculating a product of the offset correction value and a calibratable value of an offset mass magnitude, adjusting the operator torque estimation signal by adding the product and the calibratable value of an offset mass magnitude, and determining whether hands of an operator of the vehicle are on the handwheel based on the adjusted operator torque estimation signal.Type: ApplicationFiled: December 16, 2022Publication date: August 31, 2023Inventor: Joel E. Birsching
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Patent number: 11722039Abstract: A method of manufacturing a magnetic pole piece includes molding a magnetic body having an outer wall and an inner wall extending between a first end and a second end, and a trim cap disposed at the first end. The method further includes fixing a non-magnetic isolator to the magnetic body between the outer wall and the inner wall and removing the trim cap.Type: GrantFiled: August 10, 2020Date of Patent: August 8, 2023Assignee: Steering Solutions IP Holding CorporationInventors: David M. Kubiak, Joel E. Birsching
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Publication number: 20230174088Abstract: A method hands-on-wheel detection includes receiving a handwheel angle signal from a sensor associated with a handwheel of a vehicle and generating, based on a handwheel angle indicated by the handwheel angle signal, a handwheel speed signal and a handwheel acceleration signal. The method also includes synchronizing the handwheel speed signal and the handwheel acceleration signal by generating a delayed handwheel speed signal and a delayed handwheel acceleration signal. The method also includes generating an operator torque estimation signal based on, at least, the delayed handwheel speed signal and the delayed handwheel acceleration signal. The method also includes determining whether hands of an operator of the vehicle are on the handwheel based on the operator torque estimation signal.Type: ApplicationFiled: February 4, 2022Publication date: June 8, 2023Inventor: Joel E. Birsching
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Patent number: 11305811Abstract: Technical solutions for compensating for lash in a steering system are described. An example method includes determining a rack pressure value based on a driver torque value and a differential pressure across a rack of the steering system. The method also includes determining a compensation friction value based on a position of a handwheel of the steering system and a speed of a vehicle equipped with the steering system. The method also includes computing a pressure value based on the rack pressure value and the compensation friction value. The method also includes generating a torque command using the pressure value, the torque command being added to the driver assist torque for the steering system.Type: GrantFiled: June 10, 2019Date of Patent: April 19, 2022Assignee: Steering Solutions IP Holding CorporationInventor: Joel E. Birsching
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Patent number: 11235801Abstract: Technical solutions are described for generating a damping torque in a magnetic torque overlay (MTO) steering system. An example method includes generating a damping torque based on a vehicle speed value, a handwheel velocity value, and a differential pressure value. The method further includes detecting an off-road condition, and in response, computing an off-road damping torque signal based on one or more of the vehicle speed value, the handwheel velocity value, the differential pressure value, and a handwheel angle value. The method also includes scaling the damping torque by the off-road damping torque signal in response to detecting the off-road condition.Type: GrantFiled: August 5, 2019Date of Patent: February 1, 2022Assignee: Steering Solutions IP Holding CorporationInventor: Joel E. Birsching
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Publication number: 20200373793Abstract: A method of manufacturing a magnetic pole piece includes molding a magnetic body having an outer wall and an inner wall extending between a first end and a second end, and a trim cap disposed at the first end. The method further includes fixing a non-magnetic isolator to the magnetic body between the outer wall and the inner wall and removing the trim cap.Type: ApplicationFiled: August 10, 2020Publication date: November 26, 2020Inventors: David M. Kubiak, Joel E. Birsching
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Patent number: 10848015Abstract: A method of manufacturing a magnetic pole piece includes molding a magnetic body having an outer wall and an inner wall extending between a first end and a second end, and a trim cap disposed at the first end. The method further includes fixing a non-magnetic isolator to the magnetic body between the outer wall and the inner wall and removing the trim cap.Type: GrantFiled: March 22, 2018Date of Patent: November 24, 2020Assignee: Steering Solutions IP Holding CorporationInventors: David M. Kubiak, Joel E. Birsching
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Patent number: 10784726Abstract: A method of manufacturing a magnetic pole piece includes molding a magnetic body having an outer wall and an inner wall extending between a first end and a second end, and a trim cap disposed at the first end. The method further includes fixing a non-magnetic isolator to the magnetic body between the outer wall and the inner wall and removing the trim cap.Type: GrantFiled: March 22, 2018Date of Patent: September 22, 2020Assignee: Steering Solutions IP Holding CorporationInventors: David M. Kubiak, Joel E. Birsching
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Patent number: 10703408Abstract: A method of assisting a steering effort in a hydraulic steering system is provided. The method includes measuring a pressure with a pressure sensor assembly. The method also includes calculating an input torque with a controller. The method further includes measuring at least one vehicle condition with at least one vehicle sensor and sending a vehicle condition signal to the controller. The method yet further includes determining a current required to operate an actuator with the controller.Type: GrantFiled: July 1, 2019Date of Patent: July 7, 2020Assignee: Steering Solutions IP Holding CorporationInventors: Joel E. Birsching, Martin P. Sheridan, John T. Sigelko
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Publication number: 20190351943Abstract: Technical solutions are described for generating a damping torque in a magnetic torque overlay (MTO) steering system. An example method includes generating a damping torque based on a vehicle speed value, a handwheel velocity value, and a differential pressure value. The method further includes detecting an off-road condition, and in response, computing an off-road damping torque signal based on one or more of the vehicle speed value, the handwheel velocity value, the differential pressure value, and a handwheel angle value. The method also includes scaling the damping torque by the off-road damping torque signal in response to detecting the off-road condition.Type: ApplicationFiled: August 5, 2019Publication date: November 21, 2019Inventor: Joel E. Birsching
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Publication number: 20190322315Abstract: A method of assisting a steering effort in a hydraulic steering system is provided. The method includes measuring a pressure with a pressure sensor assembly. The method also includes calculating an input torque with a controller. The method further includes measuring at least one vehicle condition with at least one vehicle sensor and sending a vehicle condition signal to the controller. The method yet further includes determining a current required to operate an actuator with the controller.Type: ApplicationFiled: July 1, 2019Publication date: October 24, 2019Inventors: Joel E. Birsching, Martin P. Sheridan, John T. Sigelko
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Publication number: 20190300049Abstract: Technical solutions for compensating for lash in a steering system are described. An example method includes determining a rack pressure value based on a driver torque value and a differential pressure across a rack of the steering system. The method also includes determining a compensation friction value based on a position of a handwheel of the steering system and a speed of a vehicle equipped with the steering system. The method also includes computing a pressure value based on the rack pressure value and the compensation friction value. The method also includes generating a torque command using the pressure value, the torque command being added to the driver assist torque for the steering system.Type: ApplicationFiled: June 10, 2019Publication date: October 3, 2019Inventor: Joel E. Birsching
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Publication number: 20190296593Abstract: A method of manufacturing a magnetic pole piece includes molding a magnetic body having an outer wall and an inner wall extending between a first end and a second end, and a trim cap disposed at the first end. The method further includes fixing a non-magnetic isolator to the magnetic body between the outer wall and the inner wall and removing the trim cap.Type: ApplicationFiled: March 22, 2018Publication date: September 26, 2019Inventors: David M. Kubiak, Joel E. Birsching
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Patent number: 10421485Abstract: A power steering system includes a steering column assembly, a steering gear assembly, and a pressure sensor, and a torque sensor. The steering column assembly has a steering shaft and the steering gear assembly is operatively connected to the steering shaft. The steering gear assembly has an input shaft that extends through a valve housing and extends into a rack housing. The pressure sensor is arranged to provide a pressure signal indicative of a fluid pressure of at least one of a first cavity and a second cavity disposed within the rack housing.Type: GrantFiled: February 23, 2017Date of Patent: September 24, 2019Assignee: Steering Solutions IP Holding CorporationInventors: Joel E. Birsching, Martin P. Sheridan, John T. Sigelko
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Patent number: 10414433Abstract: Technical solutions are described for generating a damping torque in a magnetic torque overlay (MTO) steering system. An example method includes generating a damping torque based on a vehicle speed value, a handwheel velocity value, and a differential pressure value. The method further includes detecting an off-road condition, and in response, computing an off-road damping torque signal based on one or more of the vehicle speed value, the handwheel velocity value, the differential pressure value, and a handwheel angle value. The method also includes scaling the damping torque by the off-road damping torque signal in response to detecting the off-road condition.Type: GrantFiled: July 21, 2016Date of Patent: September 17, 2019Assignee: Steering Solutions IP Holding CorporationInventor: Joel E. Birsching
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Patent number: 10351167Abstract: Technical solutions for compensating for lash in a steering system are described. An example method includes determining a rack pressure value based on a driver torque value and a differential pressure across a rack of the steering system. The method also includes determining a compensation friction value based on a position of a handwheel of the steering system and a speed of a vehicle equipped with the steering system. The method also includes computing a pressure value based on the rack pressure value and the compensation friction value. The method also includes generating a torque command using the pressure value, the torque command being added to the driver assist torque for the steering system.Type: GrantFiled: November 30, 2016Date of Patent: July 16, 2019Assignee: STEERING SOLUTIONS IP HOLDING CORPORATIONInventor: Joel E. Birsching
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Patent number: 10317302Abstract: A dual channel pressure sensor is provided. The pressure sensor includes a baseplate extending from a housing. The baseplate has a first end, a second end, and a body extending between the first end and the second end. The first end defining a first inlet port and the body defining a second inlet port.Type: GrantFiled: October 9, 2015Date of Patent: June 11, 2019Assignee: STEERING SOLUTIONS IP HOLDING CORPORATIONInventors: Jason A. Dutsky, Joel E. Birsching
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Patent number: 9862411Abstract: A control system and method for a hydraulic-power steering system of a vehicle including magnetic torque overlay (MTO) is provided. The control system and method minimize undesirable vibration in a handwheel of the vehicle as a result of disturbance in its front road wheels (e.g., road-wheel imbalance). In the control system and method, a base torque command is determined or generated. At least the base torque command is passed to a disturbance-rejection module. The disturbance-rejection module modifies the base torque command to minimize the vibration.Type: GrantFiled: July 29, 2015Date of Patent: January 9, 2018Assignee: STEERING SOLUTIONS IP HOLDING CORPORATIONInventors: Joel E. Birsching, Anthony J. Champagne, Michael K. Hales
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Publication number: 20170240202Abstract: A power steering system includes a steering column assembly, a steering gear assembly, and a pressure sensor, and a torque sensor. The steering column assembly has a steering shaft and the steering gear assembly is operatively connected to the steering shaft. The steering gear assembly has an input shaft that extends through a valve housing and extends into a rack housing. The pressure sensor is arranged to provide a pressure signal indicative of a fluid pressure of at least one of a first cavity and a second cavity disposed within the rack housing.Type: ApplicationFiled: February 23, 2017Publication date: August 24, 2017Inventors: Joel E. Birsching, Martin P. Sheridan, John T. Sigelko
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Publication number: 20170166249Abstract: Technical solutions for compensating for lash in a steering system are described. An example method includes determining a rack pressure value based on a driver torque value and a differential pressure across a rack of the steering system. The method also includes determining a compensation friction value based on a position of a handwheel of the steering system and a speed of a vehicle equipped with the steering system. The method also includes computing a pressure value based on the rack pressure value and the compensation friction value. The method also includes generating a torque command using the pressure value, the torque command being added to the driver assist torque for the steering system.Type: ApplicationFiled: November 30, 2016Publication date: June 15, 2017Inventor: Joel E. Birsching