Patents Assigned to GM
  • Publication number: 20210273505
    Abstract: A method for controlling transient operation of a rotary electric machine in an electric powertrain or other electrical system includes, during a shunt angle transition occurring during a maximum torque per ampere (MTPA) control region, determining an estimated output torque of the electric machine via a torque estimation block using d-axis and q-axis current commands and an additional value, i.e., an actual shunt angle or a machine temperature. The method includes subtracting the estimated output torque from a commanded output torque to derive an adjusted commanded torque value or torque error, and calculating, from the torque error, a delta d-axis current command and a delta q-axis current command. The method includes adjusting d-axis and q-axis current commands using the delta commands to produce adjusted d-axis and q-axis current commands, which are then used as closed-loop feedback control terms by the torque estimation block.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 2, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xin Jing, Bojian Cao, Brent S. Gagas
  • Publication number: 20210272248
    Abstract: Methods and systems for training a non-blind deblurring module are disclosed. Unblurred test images and blurred test images are received, wherein each of the blurred test images is related to a corresponding one of the unblurred test images by a blur kernel term and a noise term. A regularized deconvolution sub-module and a convolutional neural network are jointly trained by adjusting a regularization parameter of a regularized deconvolution function and weights of a convolution neural network in order to minimize a cost function representative of a difference between each deblurred output image and a corresponding one of the unblurred test images.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 2, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Michael Slutsky
  • Publication number: 20210273229
    Abstract: Composite reference electrode substrates and relating methods are provided. The composite reference electrode substrate includes a separator portion and a current collector portion adjacent to the separator portion. A method for forming the reference electrode substrate includes anodizing one or more surfaces of a first side of an aluminum foil so as to form a porous separator portion disposed adjacent to a porous current collector portion. The porous separator portion includes aluminum oxide, and the current collector portion includes the aluminum foil. The separator portion and the current collector portion each have a porosity of greater than or equal to about 10 vol. % to less than or equal to about 80 vol. %.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 2, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yucong WANG, Zhe LI, Jing GAO, Brian J. KOCH
  • Publication number: 20210270160
    Abstract: A system and method for controlling an aftertreatment assembly includes a diesel oxidation catalyst (DOC) device configured to receive an exhaust gas. One or more sensors are configured to obtain respective sensor data relative to the exhaust gas and DOC device. A controller is in communication with the sensors and configured to obtain respective sensor data relative to the exhaust gas. The controller is configured to determine if one or more enabling conditions are met, including reaching a predefined temperature range in the DOC device. A rich event is induced targeting a predetermined range of a lambda value for a predefined maximum time duration. When the rich event has ended, an exotherm index is obtained for an observation window immediately after the rich event. The controller is configured to control operation of the aftertreatment assembly based at least partially on the exotherm index.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 2, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Marco Sculto, Claudio Ciaravino, Luisa Cusanno
  • Publication number: 20210271905
    Abstract: A vehicle includes one or more cameras that capture a plurality of two-dimensional images of a three-dimensional object. A light detector and/or a semantic classifier search within those images for lights of the three-dimensional object. A vehicle signal detection module fuses information from the light detector and/or the semantic classifier to produce a semantic meaning for the lights. The vehicle can be controlled based on the semantic meaning. Further, the vehicle can include a depth sensor and an object projector. The object projector can determine regions of interest within the two-dimensional images, based on the depth sensor. The light detector and/or the semantic classifier can use these regions of interest to efficiently perform the search for the lights.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 2, 2021
    Applicant: GM Cruise Holdings LLC
    Inventors: Clement Creusot, Divya Thuremella, Na Yu, Jia Pu
  • Publication number: 20210271906
    Abstract: A vehicle includes one or more cameras that capture a plurality of two-dimensional images of a three-dimensional object. A light detector and/or a semantic classifier search within those images for lights of the three-dimensional object. A vehicle signal detection module fuses information from the light detector and/or the semantic classifier to produce a semantic meaning for the lights. The vehicle can be controlled based on the semantic meaning. Further, the vehicle can include a depth sensor and an object projector. The object projector can determine regions of interest within the two-dimensional images, based on the depth sensor. The light detector and/or the semantic classifier can use these regions of interest to efficiently perform the search for the lights.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 2, 2021
    Applicant: GM Cruise Holdings LLC
    Inventors: Clement Creusot, Divya Thuremella, Na Yu, Jia Pu
  • Patent number: 11104042
    Abstract: Methods of making a composite article, such as a motor housing, are provided herein. The method can include applying a resin-fiber material to a shaped surface to form an intermediate article. The resin-fiber material includes an uncured resin composition and a fiber substrate material. The method further includes solidifying the uncured resin composition present in the intermediate article to form the composite article. Solidifying can be accomplished by applying heat to the intermediate article to initiate an exothermic reaction comprising polymerization, cross-linking, or both of the uncured resin composition. Application of the heat from the heat source can be ceased after initiation of the exothermic reaction, but polymerization, cross-linking or both of remaining uncured resin composition can continue in one or more of a radial, circumferential, or axial direction through a thickness of the resin-fiber material in the absence of heat from the heat source to form the composite article.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: August 31, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Bradley A. Newcomb, Xiaosong Huang
  • Patent number: 11106044
    Abstract: An alignment system for a HUD is provided and includes a mirror, a mirror actuator, first and second light sources, an optic assembly, and a control module. The mirror actuator adjusts mirror orientation. The first light source generates a first light beam. The mirror directs the first light beam from the HUD to a combiner to generate a virtual image. The second light source generates a second light beam. The optic assembly directs the second light beam to the combiner to generate a fiducial. The control module: performs an alignment process including, based on received inputs, controlling the mirror actuator to adjust mirror orientation to adjust a position of the virtual image and align a portion of the virtual image, the fiducial and an eye of a viewer; determines a height of the eye based on a mirror angle; and displays another virtual image based on the height.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: August 31, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Thomas A. Seder, Kai-Han Chang, Leslie G. Ferris, Omer Tsimhoni
  • Patent number: 11104285
    Abstract: A method and apparatus of predicting a crash are provided. The method includes detecting coordinates of a target obstacle based on first coordinate information of a radar sensor and second coordinate information of an ultrasonic sensor, translating the second coordinate information to the coordinate system of the first coordinate information and generating translated coordinate information, estimating a position, speed, and acceleration of a vehicle if the vehicle is a predetermined distance from the target obstacle based on the translated coordinate information, determining a potential crash type between the vehicle and the target obstacle based on the estimated position, speed and acceleration of the vehicle, determining a three-dimensional movement trajectory based on the estimated position, speed and acceleration of the vehicle and the determined crash type, and predicting a crash point of the vehicle, a crash point of the target object and a crash time based on the three-dimensional movement trajectory.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 31, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Keunwoo Lee, Kihong Park
  • Patent number: 11105302
    Abstract: An evaporative emissions control system comprising an evaporative emissions control (evap) canister. A fuel vapor feed conduit includes a first end fluidically connected to the evap canister, a second end connected to an internal combustion (IC) engine and a purge valve fluidically connected thereto. A fuel vapor conduit includes a first end fluidically connected to the evap canister and a second end configured to extend into a vehicle fuel tank. A fuel vapor vent valve is fluidically connected to the fuel vapor conduit at the second end thereof. A vapor return system includes a fuel pump fluidically connected to the fuel vapor conduit through an intermediate bypass conduit having a first end fluidically connected to an intermediate portion of the fuel vapor conduit and a second end extending into the vehicle fuel tank and in communication with the vapor return system.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: August 31, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: William L. Villaire, Manoj R. Chaudhari, Edward J. Strzelecki
  • Patent number: 11107227
    Abstract: Distance measurements are received from one or more distance measurement sensors, which may be coupled to a vehicle. A three-dimensional (3D) point cloud are generated based on the distance measurements. In some cases, 3D point clouds corresponding to distance measurements from different distance measurement sensors may be combined into one 3D point cloud. A voxelized model is generated based on the 3D point cloud. An object may be detected within the voxelized model, and in some cases may be classified by object type. If the distance measurement sensors are coupled to a vehicle, the vehicle may avoid the detected object.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 31, 2021
    Assignee: GM Cruise Holdings, LLC
    Inventors: Sandeep Gangundi, Sarthak Sahu, Nathan Harada, Phil Ferriere
  • Patent number: 11104350
    Abstract: Sensors coupled to a vehicle are calibrated using a calibration environment that includes sensor targets, and optionally includes a motorized turntable that rotates the vehicle to different orientations, with the sensors capturing data at each orientation. The vehicle's computer identifies representations of the sensor targets within the data captured by the sensors, determines whether characteristics such as lighting or positioning of the representations of the sensor targets are optimal for calibration, sends signals to lighting systems or motorized target movement systems if necessary to adjust those characteristics, and calibrates the sensor based on the representations of the sensor targets.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: August 31, 2021
    Assignee: GM Cruise Holdings, LLC
    Inventors: Zhichang (Henry) Yan, Haven Lau
  • Patent number: 11105900
    Abstract: A chip-scale LIDAR (light detection and ranging) system, optical package and LIDAR platform. The system includes a photonic chip, a laser associated with the photonic chip, an optical circulator, and a MEMS scanner. The laser, the optical circulator and the MEMS scanner are collinear. The photonic chip includes an edge coupler. The optical package includes a housing having an aperture, and a platform within the housing. The platform includes the laser, an optical circulator, and MEMS scanner.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: August 31, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Keyvan Sayyah, Pamela R. Patterson, Raymond Sarkissian, Richard Kremer, Oleg Efimov
  • Patent number: 11104340
    Abstract: A host vehicle includes an internal combustion engine, a turbocharger in fluid communication with the internal combustion engine, a communication system configured to transmit and receive a traffic-related message, and a controller in communication with the turbocharger and the communication system. The controller is programmed to: receive the traffic-related message via the communication system; and command the internal combustion engine to increase a power output to spool up the turbocharger in response to receiving the traffic-related message. The controller is programmed to determine a number of relevant vehicles. The number of relevant vehicles is a number of vehicles that are in front of the host vehicle and behind a traffic light and affect a movement of the host vehicle toward the traffic light. The traffic-related message is a one of a vehicle message from another vehicle and/or a traffic-light message from the traffic light.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: August 31, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Mohammad Naserian, Allan K. Lewis, Donald K. Grimm, Yiran Hu
  • Patent number: 11108103
    Abstract: A thermal management system for an on-vehicle battery includes a battery, a first thermal element, a second thermal element, a battery mounting bracket, and a vehicle body structural element. The battery mounting bracket includes a first portion attached to the vehicle body structural element, and a second portion attached to the first thermal element. The first thermal element is attached to the first end portion of the battery, and the second thermal element is attached to at least one of the second end portion, the first and second side portions, the top portion or the bottom portion of the battery. The first thermal element is composed from a first phase-change material having a first phase-change temperature and the second thermal element is composed from a second phase-change material having a second phase-change temperature, wherein the first phase-change temperature is greater than the second phase-change temperature.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: August 31, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Raviraj U. Nayak, Derek W. Fultz, Robert D. Drexler
  • Patent number: 11104082
    Abstract: A welding method includes: moving a welding head toward a plurality of workpieces, wherein each of the plurality of workpieces includes a polymeric composite, the polymeric composite includes a polymer matrix and a plurality of fibers, and each of the fibers includes a magnetic material; applying a joining pressure to the workpieces with the welding head; applying energy to the plurality of workpieces to melt an interface between the plurality of workpieces, wherein a weld plane is defined at the interface between the plurality of workpieces; and applying a magnetic field to the plurality of workpieces to change an orientation of the plurality of fibers relative to the polymer matrix in the weld area so that the fibers in a weld area are at an angle relative to the weld plane.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: August 31, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Marie-Christine Jones, Nikki Sgriccia
  • Patent number: 11105409
    Abstract: A method for assembling an axle assembly for a vehicle including that a pinion gear is inserted into a differential housing. The pinion gear having a first end and a second end opposite the first end. The pinion gear further includes a gear head at the first end, external threads proximate the second end, and external splines located a first distance away from the second end. The method further includes that a flange is slid over the second end of the pinion gear. The flange including internal splines. The method also includes that the internal splines of the flange are engaged with the external splines of the pinion gear and the flange is anchored to prevent the flange and the pinion gear from rotating. The method may further include that ultrasonic sound waves are transmitted through the pinion gear and reflections of the ultrasonic sound waves are detected.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: August 31, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jess Peak, Thomas J. Koenigbauer, Carl W. Cadieux
  • Publication number: 20210261166
    Abstract: The present disclosure provides a method comprising identifying at least one of a characteristic and an identity of an item for delivery from an origin to a destination and selecting one of a plurality of possible routes between the origin and the destination. For each of a plurality of route segments of the selected route, mapping information is used to characterize the route segment and one of a plurality of driving modes is selected for the route segment based on the characterization of the route segment and the at least one of the item characteristic and the item identity. A driving plan comprising a collection of the selected driving modes corresponding to the plurality of route segments comprising the selected route is provided to a vehicle and the vehicle delivers the item from the origin to the destination via the selected route using the driving plan.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 26, 2021
    Applicant: GM Cruise Holdings LLC
    Inventors: Anthony Galliano, III, Arun A. Mathews, Charlotte Blanc, Pratik Palnitkar
  • Publication number: 20210264166
    Abstract: In various embodiments, methods and systems are provided for processing camera data from a camera system associated with a vehicle. In one embodiment, a method includes: storing a plurality of photorealistic scenes of an environment; training, by a processor, a machine learning model to produce a surround view approximating a ground truth surround view using the plurality of photorealistic scenes as training data; and processing, by a processor, the camera data from the camera system associated with the vehicle based on the trained machine learning model to produce a surround view of an environment of the vehicle.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 26, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael Slutsky, Daniel Kigli
  • Publication number: 20210260952
    Abstract: A method of controlling relative roll torque in vehicles having a front active sway bar and a rear active sway bar is provided. The front active sway bar varies roll torque of a front axle and the rear active sway bar varies roll torque of a rear axle. The method includes monitoring dynamic driving conditions during operation of the vehicle and biasing tire lateral load transfer distribution (TLLTD) relative to the front axle based on the monitored dynamic driving conditions. Positive bias of the TLLTD increases the portion of a total roll torque carried by the front active sway bar. Biasing TLLTD occurs during one or more dynamic bias events triggered as monitored dynamic driving conditions exceed one or more calibrated thresholds.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 26, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Brian K. Saylor, Michael W. Neal, Larry G. Gepfrey, Robert G. Izak, Robert P. Marble, Hojjat Izadi