Patents Assigned to University of Waterloo
  • Patent number: 12125225
    Abstract: A monocular camera system for a vehicle includes a front mono camera, a side mono camera, and one or more controllers in electronic communication with the front mono camera and the side mono camera. The one or more controllers execute instructions to determine an ideal lagged distance the vehicle travels between a current time step and a previous time step as two asynchronous camera frames are captured by the front mono camera and the side mono camera, determine a number of delayed frames captured by either the front mono camera or the side mono camera between the current time step and the previous time step based on the ideal lagged distance. The controllers determine a direction of travel of the vehicle that indicates which mono camera is selected to provide a previous camera frame captured at the previous time step.
    Type: Grant
    Filed: April 4, 2023
    Date of Patent: October 22, 2024
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, University of Waterloo
    Inventors: Ahmad R. Alghooneh, Amir Khajepour, Mansoor Alghooneh, Brent Navin Roger Bacchus, Neel Pratik Bhatt, Ruihe Zhang
  • Patent number: 11959536
    Abstract: A system for managing vehicle body and wheel motion control with a dual clutch differential includes sensors and actuators disposed on the vehicle, the sensors measuring real-time static and dynamic data and the actuators altering static and dynamic behavior of the motor vehicle. A control module executes program code portions stored in memory. The program code portions receive the real-time static and dynamic data; selectively prioritize torque output from a prime mover of the vehicle through the differential to driven wheels of the vehicle to control a body and the driven wheels; model and estimate clutch torque for each clutch of the dual clutch differential; model and estimate a joint clutch torque, a tire force, and corner torque; and generate a torque output for each clutch of the dual clutch differential that is selected to maintain one or more of body control, wheel control, and stability of the motor vehicle.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: April 16, 2024
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, University of Waterloo
    Inventors: Reza Hajiloo, Amir Khajepour, Seyedalireza Kasaiezadeh Mahabadi, Seyedeh Asal Nahidi, Bakhtiar B. Litkouhi, Ehsan Mohammadbagher
  • Publication number: 20230320115
    Abstract: This invention is related to a new treatment process employed during preparation of the ZnO ETL in a QDLED. The treatment involves exposing the ZnO layer to fluorine (F). In embodiments of this invention, the exposure of the ZnO layer to the F is performed using a fluorine plasma environment (e.g., using CF4, CHF3, C4F8 or SF6). Alternatively, the F exposure may be done by exposing the ZnO ETL to a suitable fluorine-containing substance such as fluorine gas or fluorinated solvents. The F plasma treatment of the ZnO improves both QDLED device EQE and EL stability.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 5, 2023
    Applicants: HUAWEI TECHNOLOGIES CANADA CO., LTD., University of Waterloo
    Inventors: Dong Seob CHUNG, Hany Maher AZIZ
  • 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: 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
  • 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: 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
  • Patent number: 9657113
    Abstract: The present invention provides a novel process for selectively hydrogenating the carbon-carbon double bonds in diene-based polymers which are present in latex form, this means as a suspension of diene-based polymer particles in an aqueous medium, using a Ruthenium or Osmium-based complex catalyst without any organic solvent.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: May 23, 2017
    Assignee: University of Waterloo
    Inventors: Garry L. Rempel, Qinmin Pan, Yin Liu, Jialong Wu
  • Patent number: 9359490
    Abstract: The present invention refers to diene-based unsaturated polymer latex particles having a particle size measured as d90-value of less than 60 nm and a method for their production. Methods for using the diene-based polymer latex as rubber and for conversion to hydrogenated polymers, with reduced gel formation, are also disclosed.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: June 7, 2016
    Assignee: University of Waterloo
    Inventors: Qinmin Pan, Garry L. Rempel, Guangwei He
  • Patent number: 9354180
    Abstract: The present invention relates to methods for determining the level of intermolecular interaction of a polymer based on the fraction of intermolecular interaction (finter) relative to the inter, total molecular interaction, which includes both intermolecular and intramolecular interactions. Further provided herein is a method of identifying a suitable viscosity index improver based on the value of finter. The identified suitable viscosity index improver can be used in a lubricating oil composition for, e.g., a power transmission system.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 31, 2016
    Assignees: Afron Chemical Corporation, University of Waterloo
    Inventors: Sheng Jiang, Akhilesh Duggal, Jean Duhamel, Solmaz Pirouz
  • Publication number: 20160077012
    Abstract: The present invention relates to methods for determining the level of intermolecular interaction of a polymer based on the fraction of intermolecular interaction (finter) relative to the inter, total molecular interaction, which includes both intermolecular and intramolecular interactions. Further provided herein is a method of identifying a suitable viscosity index improver based on the value of finter. The identified suitable viscosity index improver can be used in a lubricating oil composition for, e.g., a power transmission system.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 17, 2016
    Applicants: Afton Chemical Corporation, University of Waterloo
    Inventors: Sheng Jiang, Akhilesh Duggal, Jean Duhamel, Solmaz Pirouz
  • Patent number: 8233570
    Abstract: A method and system for predicting channel fading, particularly in a mobile wireless environment, that is accurate for long-range predictions. The method comprises estimating a model parameters based on a current channel estimate, and recursively adapting the model parameters to predict future channel fading coefficients until a predetermined re-acquisition condition is satisfied. Once the re-acquisition condition has been satisfied, the model parameters are again estimated based on a current channel estimate. The acquired model parameters are adaptively updated and used in a Kalman filter.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: July 31, 2012
    Assignees: BCE Inc., University of Waterloo
    Inventors: Abdorreza Heidari, Amir Keyvan Khandani, Derek McAvoy
  • Patent number: 8199107
    Abstract: Various implementations of an interface device, along with associated methods and systems, are described in which the interface device has a housing with a transformable form factor, and a transformation assembly that can change the form factor of the housing. At least one of the form factors of the housing has a shape that corresponds to data associated with the interface device.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: June 12, 2012
    Assignee: University of Waterloo
    Inventors: Rex Fang Xu, Carolyn Gail MacGregor
  • Patent number: 8173302
    Abstract: An electrode material having carbon and sulfur is provided. The carbon is in the form of a porous matrix having nanoporosity and the sulfur is sorbed into the nanoporosity of the carbon matrix. The carbon matrix can have a volume of nanoporosity between 10 and 99%. In addition, the sulfur can occupy between 5 to 99% of the nanoporosity. A portion of the carbon structure that is only partially filled with the sulfur remains vacant allowing electrolyte egress. In some instances, the nanoporosity has nanopores and nanochannels with an average diameter between 1 nanometer and 999 nanometers. The sulfur is sorbed into the nanoporosity using liquid transport or other mechanisms providing a material having intimate contact between the electronically conductive carbon structure and the electroactive sulfur.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: May 8, 2012
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., University of Waterloo
    Inventors: Kimber L. Stamm, Monique N. Richard, Linda F. Nazar, Xiulei Ji, Kyu-Tae Lee
  • Patent number: 7986752
    Abstract: A method and system for detecting and decoding multiple signals. A low-complexity MIMO detector that combines sphere decoding and m-algorithm approaches, while accounting for the effect of channel condition on the decoding operation, is provided. Taking into account the channel condition effectively controls the size of the search tree, and consequently the search complexity, in an adaptive manner. The channel condition is exploited in the construction of the tree to manage the number of branches in the tree and to avoid undesirable growth.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: July 26, 2011
    Assignees: BCE Inc., University of Waterloo
    Inventors: Hosein Nikopour-Deilami, Amir Keyvan Khandani, Aladdin Saleh
  • Publication number: 20110153242
    Abstract: A method of measuring a temperature of a wire and a current flowing through the wire with a thermocouple includes taking a first voltage reading from the thermocouple with the current at a first polarity, and taking a second voltage reading from the thermocouple with the current at a second polarity. The first voltage reading is averaged with the second voltage reading to obtain an average voltage reading, which is referenced to a correlation table to calculate the temperature of the wire. Half of a voltage difference between the first voltage reading and the second voltage reading is divided by the resistance in the wire to calculate the current flowing through the wire.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 23, 2011
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC, University of Waterloo
    Inventors: Xiujie Gao, Nicholas William Pinto, Robert B. Gorbet, J. Richard Culham, Alan L. Browne, Nancy L. Johnson, Huilong (William) Ma