Patents by Inventor Bashar Yazigi
Bashar Yazigi 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: 11149798Abstract: A rotary clutch uses a wrap spring clutch. An actuator generates a drag force to control the wrap spring clutch to engage or disengage the clutch. The actuator includes an electromagnet, a two-component armature and an axial return spring. The two-component armature includes first and second components threadingly connected one another for relative axial translation as they rotate relative to one another, and an angular position biasing member connecting them. The second component translates axially under magnetic force from the electromagnet, and when stopped by the electromagnet the first armature component translates axially due to their threaded connection. Due to the previous axial movement of the floating component the translation of the first armature component occurs in conditions where the air gap and reluctance of a magnetic circuit is reduced compared to the prior art, and thus the overall strength of the applied magnetic field can be comparatively reduced.Type: GrantFiled: July 20, 2018Date of Patent: October 19, 2021Assignee: LITENS AUTOMOTIVE PARTNERSHIPInventor: Bashar Yazigi
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Publication number: 20200232516Abstract: A rotary clutch uses a wrap spring clutch. An actuator generates a drag force to control the wrap spring clutch to engage or disengage the clutch. The actuator includes an electromagnet, a two-component armature and an axial return spring. The two-component armature includes first and second components threadingly connected one another for relative axial translation as they rotate relative to one another, and an angular position biasing member connecting them. The second component translates axially under magnetic force from the electromagnet, and when stopped by the electromagnet the first armature component translates axially due to their threaded connection. Due to the previous axial movement of the floating component the translation of the first armature component occurs in conditions where the air gap and reluctance of a magnetic circuit is reduced compared to the prior art, and thus the overall strength of the applied magnetic field can be comparatively reduced.Type: ApplicationFiled: July 20, 2018Publication date: July 23, 2020Inventor: Bashar YAZIGI
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Patent number: 10364854Abstract: In an aspect, a method is provided for controlling a clutch assembly having first and second rotatable clutch members. The method includes providing a wrap spring clutch having first and second ends. The phase angle between the first and second ends determines a diameter of the wrap spring clutch. One of the clutch members is connected with the first end. The method further includes obtaining a target value indicative of a target speed for the second clutch member, and determining through measurement an actual value that is indicative of an actual speed of the second clutch member. The method further includes changing the phase angle between the first and second ends of the wrap spring clutch to generate a selected amount of slip between the wrap spring clutch and the other of the first and second clutch members, based on the target value and the actual value.Type: GrantFiled: December 22, 2016Date of Patent: July 30, 2019Assignee: LITENS AUTOMOTIVE PARTNERSHIPInventors: Zbyslaw Staniewicz, Bashar Yazigi, Scott D. Parsons, Jacek R. Stepniak, Roman Tracz
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Patent number: 10066538Abstract: In an aspect, an electromechanical apparatus is provided, comprising an electromagnet, a magnetically permeable rotor, a drive, a current source, a current sensor and processing logic. The electromagnet includes a magnetically permeable housing and a wire coil disposed therein. The rotor spins and is disposed in the path of a magnetic circuit generated by the electromagnet. The drive rotates the rotor relative to the electromagnet housing. The rotor and electromagnet housing vary the reluctance therebetween as the rotor rotates. The current source applies a current to the electromagnet coil, wherein, during rotation of the rotor, fluctuations in the current result in the electromagnet coil due to the aforementioned varying reluctance are superimposed on the applied current. The current sensor senses fluctuations in current in the electromagnet coil. The processing logic reads the sensed current and determines the frequency of the fluctuations, which are correlated to rotor speed.Type: GrantFiled: December 1, 2014Date of Patent: September 4, 2018Assignee: Litens Automotive PartnershipInventors: Yongguang Zhu, Zbyslaw Staniewicz, Noel Abreu, Bashar Yazigi, Roman Tracz
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Patent number: 9726234Abstract: In an aspect, a clutch assembly is provided that uses an electromagnet to generate a magnetic circuit which drives an armature to a position whereat it engages the clutch to operatively connect a rotating member to a stationary member. In embodiments wherein the armature initially rotates with the rotating member, the magnetic circuit passes through the stationary member. In embodiments wherein the armature is initially stationary, the magnetic circuit extends through the rotating member.Type: GrantFiled: April 10, 2013Date of Patent: August 8, 2017Assignee: Litens Automotive PartnershipInventors: Andrew M. Boyes, Jason R. Desouza-Coelho, Zbyslaw Staniewicz, Bashar Yazigi
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Publication number: 20170102040Abstract: In an aspect, a method is provided for controlling a clutch assembly having first and second rotatable clutch members. The method includes providing a wrap spring clutch having first and second ends. The phase angle between the first and second ends determines a diameter of the wrap spring clutch. One of the clutch members is connected with the first end. The method further includes obtaining a target value indicative of a target speed for the second clutch member, and determining through measurement an actual value that is indicative of an actual speed of the second clutch member. The method further includes changing the phase angle between the first and second ends of the wrap spring clutch to generate a selected amount of slip between the wrap spring clutch and the other of the first and second clutch members, based on the target value and the actual value.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Inventors: Zbyslaw Staniewicz, Bashar Yazigi, Scott D. Parsons, Jacek R. Stepniak, Roman Tracz
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Patent number: 9556918Abstract: In an aspect, a method is provided for controlling a clutch assembly having first and second rotatable clutch members. The method includes providing a wrap spring clutch having first and second ends. The phase angle between the first and second ends determines a diameter of the wrap spring clutch. One of the clutch members is connected with the first end. The method further includes obtaining a target value indicative of a target speed for the second clutch member, and determining through measurement an actual value that is indicative of an actual speed of the second clutch member. The method further includes changing the phase angle between the first and second ends of the wrap spring clutch to generate a selected amount of slip between the wrap spring clutch and the other of the first and second clutch members, based on the target value and the actual value.Type: GrantFiled: April 10, 2014Date of Patent: January 31, 2017Assignee: LITENS AUTOMOTIVE PARTNERSHIPInventors: Zbyslaw Staniewicz, Bashar Yazigi, Scott D. Parsons, Jacek R. Stepniak, Roman Tracz
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Publication number: 20160298527Abstract: In an aspect, an electromechanical apparatus is provided, comprising an electromagnet, a magnetically permeable rotor, a drive, a current source, a current sensor and processing logic. The electromagnet includes a magnetically permeable housing and a wire coil disposed therein. The rotor spins and is disposed in the path of a magnetic circuit generated by the electromagnet. The drive rotates the rotor relative to the electromagnet housing. The rotor and electromagnet housing vary the reluctance therebetween as the rotor rotates. The current source applies a current to the electromagnet coil, wherein, during rotation of the rotor, fluctuations in the current result in the electromagnet coil due to the aforementioned varying reluctance are superimposed on the applied current. The current sensor senses fluctuations in current in the electromagnet coil. The processing logic reads the sensed current and determines the frequency of the fluctuations, which are correlated to rotor speed.Type: ApplicationFiled: December 1, 2014Publication date: October 13, 2016Inventors: Yongguang Zhu, Zbyslaw Staniewicz, Noel Abreu, Bashar Yazigi, Roman Tracz
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Publication number: 20160040733Abstract: In an aspect, a method is provided for controlling a clutch assembly having first and second rotatable clutch members. The method includes providing a wrap spring clutch having first and second ends. The phase angle between the first and second ends determines a diameter of the wrap spring clutch. One of the clutch members is connected with the first end. The method further includes obtaining a target value indicative of a target speed for the second clutch member, and determining through measurement an actual value that is indicative of an actual speed of the second clutch member. The method further includes changing the phase angle between the first and second ends of the wrap spring clutch to generate a selected amount of slip between the wrap spring clutch and the other of the first and second clutch members, based on the target value and the actual value.Type: ApplicationFiled: April 10, 2014Publication date: February 11, 2016Applicant: LITENS AUTOMOTIVE PARTNERSHIPInventors: Zbyslaw Staniewicz, Bashar Yazigi, Scott D. Parsons, Jacek R. Stepniak, Roman Tracz
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Publication number: 20150041277Abstract: In an aspect, a clutch assembly is provided that uses an electromagnet to generate a magnetic circuit which drives an armature to a position whereat it engages the clutch to operatively connect a rotating member to a stationary member. In embodiments wherein the armature initially rotates with the rotating member, the magnetic circuit passes through the stationary member. In embodiments wherein the armature is initially stationary, the magnetic circuit extends through the rotating member.Type: ApplicationFiled: April 10, 2013Publication date: February 12, 2015Inventors: Andrew M. Boyes, Jason R. Desouza-Coelho, Zbyslaw Staniewicz, Bashar Yazigi