Patents Assigned to University of Waterloo
  • Publication number: 20220324266
    Abstract: A method for determining a tire tread wear estimation of a tire includes receiving, by a controller, a direct tire tread wear measurement, when available, performing an indirect tire tread wear estimation, performing a data fusion of the indirect tire tread wear estimation with the direct tire tread wear measurement when available, estimating a percentage tire life remaining and a mileage to end of tire life, and estimating a refined tire tread wear calibration coefficient for performing future indirect tire tread wear estimations.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 13, 2022
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, University of Waterloo
    Inventors: Mansoor Alghooneh, Joseph K. Moore, Christopher J. Mettrick, Gregory P. Kakert, Amir Khajepour, Amin Habibnejad Korayem, Yechen Qin, Ehsan Hashemi
  • Publication number: 20220223874
    Abstract: Disclosed is an electrochemical cell comprising a lithium-based anode and a sulfur-based cathode and an electrolyte, wherein the cathode material comprises a polymeric binder, wherein the binder comprises ammonium functional groups. In one aspect, the polymeric binder comprises ammonium chloride functional groups.
    Type: Application
    Filed: May 25, 2020
    Publication date: July 14, 2022
    Applicant: University of Waterloo
    Inventors: Linda Faye NAZAR, Chun Yuen KWOK, Mario GAUTHIER
  • Patent number: 11046323
    Abstract: A method for estimation of a vehicle tire force includes: receiving, by a controller of a vehicle, a measured vehicle acceleration of the vehicle; receiving, by the controller, a measured wheel speed and a measured yaw rate of the vehicle; forming, by the controller, inertia matrices based on an inertia of rotating components of the vehicle; calculating torques at corners of the vehicle using the inertia matrices; estimating tire forces of the vehicle based on the measured vehicle acceleration, the measured wheel speed, and the inertia matrices; and controlling, by the controller, the vehicle, based on the plurality of estimated longitudinal and lateral tire forces.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: June 29, 2021
    Assignees: GM Global Technology Operations LLC, University of Waterloo
    Inventors: Ehsan Hashemi, SeyedAlireza Kasaiezadeh Mahabadi, Amir Khajepour, Xueying Kang, Jin-Jae Chen, Hualin Tan, James H. Holbrook, Bakhtiar B. Litkouhi
  • Patent number: 11044161
    Abstract: The disclosed s, structures, and methods are directed to a method and a system for embedding a virtual network onto the substrate optical network comprising embedding the plurality of virtual nodes onto the plurality of substrate nodes in accordance with the plurality of location constraints, computing end-to-end latency associated with a plurality of substrate paths connecting a source substrate node and a destination substrate node, wherein the plurality of substrate paths contain the plurality of substrate links and the plurality of substrate nodes, and embedding a virtual link connecting a source virtual node and a destination virtual node onto the one of the plurality of substrate paths connecting the source substrate node and the destination substrate node, wherein the end-to-end latency associated with the one of the plurality of substrate paths is less than or equal to a maximum allowable latency for the virtual link.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: June 22, 2021
    Assignees: HUAWEI TECHNOLOGIES CANADA CO., LTD., UNIVERSITY OF WATERLOO
    Inventors: Nashid Shahriar, Shihabur Rahman Chowdhury, Raouf Boutaba, Jeebak Mitra, Mahdi Hemmati
  • Patent number: 10841183
    Abstract: The disclosed systems, structures, and methods are directed to a method for embedding the virtual network onto the elastic optical network comprising embedding the plurality of virtual nodes onto the plurality of substrate optical nodes in accordance with the plurality of location constraints provisioning the primary bandwidth demand associated with one of the plurality of virtual links connecting a source virtual node to a destination virtual node onto a plurality of disjoint substrate paths connecting a source substrate optical node and a destination substrate optical node, and embedding the one of the plurality of virtual links connecting the source virtual node to the destination virtual node onto the plurality of disjoint substrate paths connecting the source substrate optical node and the destination substrate optical node.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: November 17, 2020
    Assignees: Huawei Technologies Canada Co., Ltd., University of Waterloo
    Inventors: Nashid Shahriar, Shihabur Rahman Chowdhury, Sepehr Taeb, Raouf Boutaba, Jeebak Mitra, Mahdi Hemmati
  • Publication number: 20200317198
    Abstract: A method for estimation of a vehicle tire force includes: receiving, by a controller of a vehicle, a measured vehicle acceleration of the vehicle; receiving, by the controller, a measured wheel speed and a measured yaw rate of the vehicle; forming, by the controller, inertia matrices based on an inertia of rotating components of the vehicle; calculating torques at corners of the vehicle using the inertia matrices; estimating tire forces of the vehicle based on the measured vehicle acceleration, the measured wheel speed, and the inertia matrices; and controlling, by the controller, the vehicle, based on the plurality of estimated longitudinal and lateral tire forces.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 8, 2020
    Applicants: GM Global Technology Operations LLC, University of Waterloo
    Inventors: Ehsan Hashemi, SeyedAlireza Kasaiezadeh Mahabadi, Amir Khajepour, Xueying Kang, Jin-Jae Chen, Hualin Tan, James H. Holbrook, Bakhtiar B. Litkouhi
  • Patent number: 10794965
    Abstract: Certain embodiments may generally relate to a smart fault detection device for power grids, and a method of fault detection for power grids. A method may include receiving raw data samples of currents in grounding conductors and line conductors. The method may also include processing the raw data samples under at least one of a plurality of system operating modes. The method may also include monitoring normal operation and anticipating an impending fault while operating under at least one of the system operating modes. The method may further include extracting fault information based on the monitoring. The method may also include reporting the fault information to a supervisory control and data acquisition system human-machine interface. The method may further include anticipating faults based on an analysis of the raw data samples.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: October 6, 2020
    Assignees: QATAR UNIVERSITY, UNIVERSITY OF WATERLOO, UNITED ARAB EMIRATES UNIVERSITY
    Inventors: Ahmed Gaouda, Khaled Bashir Shaban, Magdy Salama, Atef Abdrabou, Ramadan Elshatshat, Mutaz Mohamed Elhassan Elsawi Khairalla, Ahmed Abdrabou
  • Patent number: 10613157
    Abstract: Certain embodiments may generally relate to a smart fault detection device for power grids, and a method of fault detection for power grids. A method may include receiving raw data samples of currents in grounding conductors and line conductors. The method may also include processing the raw data samples under at least one of a plurality of system operating modes. The method may also include monitoring normal operation and anticipating an impending fault while operating under at least one of the system operating modes. The method may further include extracting fault information based on the monitoring. The method may also include reporting the fault information to a supervisory control and data acquisition system human-machine interface. The method may further include anticipating faults based on an analysis of the raw data samples.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: April 7, 2020
    Assignees: QATAR UNIVERSITY, UNIVERSITY OF WATERLOO, UNITED ARAB EMIRATES UNIVERSITY
    Inventors: Ahmed Gaouda, Khaled Bashir Shaban, Magdy Salama, Atef Abdrabou, Ramadan Elshatshat, Mutaz Mohamed Elhassan Elsawi Khairalla, Ahmed Abdrabou
  • Patent number: 10345358
    Abstract: Certain embodiments may generally relate to a smart fault detection device for power grids, and a method of fault detection for power grids. A method may include receiving raw data samples of currents in grounding conductors and line conductors. The method may also include processing the raw data samples under at least one of a plurality of system operating modes. The method may also include monitoring normal operation and anticipating an impending fault while operating under at least one of the system operating modes. The method may further include extracting fault information based on the monitoring. The method may also include reporting the fault information to a supervisory control and data acquisition system human-machine interface. The method may further include anticipating faults based on an analysis of the raw data samples.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: July 9, 2019
    Assignees: QATAR UNIVERSITY, UNIVERSITY OF WATERLOO, UNITED ARAB EMIRATES UNIVERSITY
    Inventors: Ahmed Gaouda, Khaled Bashir Shaban, Magdy Salama, Atef Abdrabou, Ramadan Elshatshat, Mutaz Mohamed Elhassan Elsawi Khairalla, Ahmed Abdrabou
  • Publication number: 20190140260
    Abstract: The present invention relates to a process for producing a protected lithium anode for a lithium ion battery, wherein the protected lithium anode comprises metallic lithium and at least one alloy, and the present invention also relates to a process for producing an electrochemical cell comprising as one production step said process for producing said protected lithium anode.
    Type: Application
    Filed: April 12, 2017
    Publication date: May 9, 2019
    Applicants: BASF SE, University of Waterloo
    Inventors: Linda NAZAR, Xiao LIANG
  • Patent number: 10204461
    Abstract: Methods and systems are provided for detecting faults in a sensor and reconstructing an output signal without use of the faulty sensor. In one embodiment, a method includes: receiving, by a processor, sensor data indicating a measured value from a first sensor; receiving, by a processor, sensor data indicating measured values from a plurality of other sensors; computing, by a processor, virtual values based on a vehicle model and the sensor data from the plurality of other sensors; computing, by a processor, a residual difference between the measured value from the first sensor and the virtual values; detecting, by a processor, whether a fault exists in the first sensor based on the residual difference; and when a fault in the sensor is detected, generating, by a processor, a control value based on the virtual values instead of the measured value.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 12, 2019
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, UNIVERSITY OF WATERLOO
    Inventors: Shih-Ken Chen, Nikolai K. Moshchuk, Bakhtiar B. Litkouhi, Reza Zarringhalam, Amir Khajepour, William Melek
  • Patent number: 10000583
    Abstract: The present invention relates to diene-based hydrogenated polymer latex particles having a particle size measured as d90 value of less than 60 nm and a method for their production and their use. The nanosized hydrogenated diene-based polymers obtained show improved properties, especially with respect to resistance to degradation by heat, oxygen and ozone.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: June 19, 2018
    Assignee: UNIVERSITY OF WATERLOO
    Inventors: Qinmin Pan, Garry L. Rempel
  • Patent number: 9993439
    Abstract: The present disclosure relates generally to a mucoadhesive nanoparticle delivery system. The nanoparticles are formed from amphiphilic macromolecules conjugated to a mucosal targeting moiety in such a manner that the surface of the nanoparticle is coated with the targeting moiety. The surface density of the targeting moiety can be tuned for adjustable targeting of the nanoparticles to a mucosal site without substantially compromising the stability of the particles. The particles were found to have high loading efficiency and sustained release properties at the mucosal site. The present disclosure also relates to polymers and macromolecules useful in the preparation of the mucoadhesive nanoparticles, as well as compositions, methods, commercial packages, kits and uses related thereto.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: June 12, 2018
    Assignee: UNIVERSITY OF WATERLOO
    Inventors: Frank X. Gu, Lyndon William James Jones, Shengyan (Sandy) Liu
  • Patent number: 9878000
    Abstract: Disclosed is a mucoadhesive nanoparticle delivery system for delivering an immunosuppressant, such as cyclosporine A, to a mucosal site for treatment of a disease or condition involving inflammation or excess immune activity. The system comprises nanoparticles formed from a plurality of linear amphiphilic block copolymers, each having a hydrophobic block comprising polylactide (PLA) and a hydrophilic block comprising dextran. The nanoparticles are surface-functionalized with a mucosal targeting moiety, such as a phenylboronic acid derivative, for targeted delivery and enhanced retention at the mucosal site. Pharmaceutical compositions, methods, and uses thereof comprising the mucoadhesive nanoparticle delivery system are disclosed. The compositions can be administered in an effective amount for treating the disease or condition while substantially preserving or restoring the function and/or integrity of the mucosal lining.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: January 30, 2018
    Assignee: UNIVERSITY OF WATERLOO
    Inventors: Frank Xiaofei Gu, Shengyan Liu, Lyndon William James Jones
  • Publication number: 20180025558
    Abstract: Methods and systems are provided for detecting faults in a sensor and reconstructing an output signal without use of the faulty sensor. In one embodiment, a method includes: receiving, by a processor, sensor data indicating a measured value from a first sensor; receiving, by a processor, sensor data indicating measured values from a plurality of other sensors; computing, by a processor, virtual values based on a vehicle model and the sensor data from the plurality of other sensors; computing, by a processor, a residual difference between the measured value from the first sensor and the virtual values; detecting, by a processor, whether a fault exists in the first sensor based on the residual difference; and when a fault in the sensor is detected, generating, by a processor, a control value based on the virtual values instead of the measured value.
    Type: Application
    Filed: July 19, 2016
    Publication date: January 25, 2018
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, UNIVERSITY OF WATERLOO
    Inventors: SHIH-KEN CHEN, NIKOLAI K. MOSHCHUK, BAKHTIAR B. LITKOUHI, REZA ZARRINGHALAM, AMIR KHAJEPOUR, WILLIAM MELEK
  • Patent number: 9822191
    Abstract: A technique of improving the hydrogenation reaction of diene-based polymers, present in aqueous suspension, by in-situ synthesizing the catalyst in the presence of a specific aliphatic alcohol is disclosed. The process allows the selective hydrogenation of the carbon-carbon double bonds in the diene-based polymers with a high degree of hydrogenation and short reactions times. The improved process eliminates the complicated catalyst synthesis operations so far necessary.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: November 21, 2017
    Assignee: UNIVERSITY OF WATERLOO
    Inventors: Garry L. Rempel, Qinmin Pan, Yin Liu
  • Publication number: 20170301999
    Abstract: A multi-slot patch antenna is provided. The multi-slot patch antenna includes a central patch including cut corners; a plurality of strips of varying widths, the plurality of strips surrounding the central patch; and a plurality of slots of varying widths, the plurality of slots being positioned between each of the plurality of strips, wherein one of the plurality of slots is positioned between a first one of the plurality of strips and the central patch.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 19, 2017
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, UNIVERSITY OF WATERLOO
    Inventors: VYACHESLAV BEREZIN, SHAUN S. MARSHALL, GHOLAMREZA Z. RAFI, SAFIEDDIN SAFAVI-NAEINI
  • Patent number: 9793614
    Abstract: A multi-slot patch antenna is provided. The multi-slot patch antenna includes a central patch including cut corners; a plurality of strips of varying widths, the plurality of strips surrounding the central patch; and a plurality of slots of varying widths, the plurality of slots being positioned between each of the plurality of strips, wherein one of the plurality of slots is positioned between a first one of the plurality of strips and the central patch.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: October 17, 2017
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, UNIVERSITY OF WATERLOO
    Inventors: Vyacheslav Berezin, Shaun S. Marshall, Gholamreza Z. Rafi, Safieddin Safavi-Naeini
  • Patent number: 9790297
    Abstract: The present invention relates to functionalized copolymers of isoolefins and olefinic monomers, particularly to azidated copolymers. The present invention also relates to methods of preparing such azidated copolymers. The functionalized copolymers are used in various technology areas such as surface modification, adhesion, drug delivery, compatibilization of polymer blends or motor oil and fuel additives, and in providing clean cured products without contaminant leaching and/or side products.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 17, 2017
    Assignees: ARLANXEO Deutschland GmbH, The University of Waterloo
    Inventors: Conrad Siegers, Dana Adkinson, Gregory J. E. Davidson, Lorenzo Ferrari, Mario Gauthier
  • Patent number: 9732166
    Abstract: The present invention provides a novel process for subjecting a diene-based-polymer to a metathesis reaction in a first step and a selective hydrogenation of the carbon-carbon double bonds present in such diene-based polymers in a second step using a ruthenium or osmium based complex catalyst, wherein the diene-based polymer is present in latex form, this means as a suspension of diene-based polymer particles in an aqueous medium.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: August 15, 2017
    Assignee: University of Waterloo
    Inventors: Garry L. Rempel, Qinmin Pan, Yin Liu, Jialong Wu