Patents Assigned to GM Global Technology Operations, Inc.
  • Patent number: 10393005
    Abstract: Embodiments of a powertrain cooling system and embodiments of a radiator module are provided for deployment onboard a vehicle. In one embodiment, the powertrain cooling system includes a first airflow path, a second airflow path, a primary radiator core positioned in the first airflow path, an auxiliary radiator core position in the second airflow path, and a first airflow valve positioned in the second airflow path upstream of the auxiliary radiator core. The first airflow valve is movable between a closed position wherein the first airflow valve impedes airflow to the auxiliary radiator core and an open position.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: August 27, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Scott P. Charnesky, Gregory J. Fadler, Thomas K. Lockwood, Kevin A. Golsch
  • Patent number: 9800413
    Abstract: Methods and apparatus are provided for performing an asymmetric key exchange between a vehicle and a first remote device. The method comprises storing predetermined cryptographic information on the vehicle, generating a first public key and a first private key that correspond to the vehicle, storing the first private key on the vehicle, and providing the first public key and descriptive data associated with the vehicle to a trusted entity, wherein the trusted entity is configured to store the first public key and the descriptive data in a location that is accessible to the first remote device.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: October 24, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Ansaf I. Alrabady, Thomas M. P. Catsburg
  • Patent number: 9630601
    Abstract: A method that compensates for fluid pressure variations in a vehicle brake system so that the fluid pressure, brake torque and/or brake force at the wheel more accurately reflects that requested by the driver. In an exemplary embodiment, the method determines the braking intent of the driver, determines a current stage of the braking event (e.g., an apply stage, release stage, etc.), uses the braking event stage and the driver braking intent to select a pressure compensation, and uses the pressure compensation to generate compensated brake command signals for operating the vehicle brake system. This method is well suited for use with brake-by-wire systems, such as an electrohydraulic braking (EHB) system.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: April 25, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Jon K. Logan, Patrick J. Monsere, Margaret C. Richards, Jonathan King, Danny Y. Mui
  • Patent number: 9388860
    Abstract: A retaining ring for a constant velocity joint includes an annular, C-shaped retainer body that tapers inwardly toward the longitudinal axis from a first end opening and a first end to a second end opening and a second end, the retainer body comprising a first retainer leg and an opposed second retainer leg, the first retainer leg and the second retainer leg joined together on a proximal end and separated on respective distal ends by a gap. It also includes an axially extending annular rib disposed on the first end of the retainer body. It further includes a relief feature formed on the second end of the first retainer leg and a relief feature formed on the second end of the second leg, the relief feature on the first retainer leg and the relief feature on the second retainer leg disposed closer to the proximal end than the distal ends.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: July 12, 2016
    Assignees: STEERING SOLUTIONS IP HOLDING CORPORATION, GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Matthew A. Berube, Keith A. Kozlowski, Jorge Flores-Garay
  • Patent number: 9322632
    Abstract: A linear position sensor assembly having a magnetic shield minimizes interference (noise) from adjacent electrical and electromagnetic devices, particularly solenoids. The sensor assembly includes a permanent magnet linear contactless displacement (PLCD) sensor comprising a pair of magnetic field sensors which are spaced apart by a member of high magnetic permeability such as a metal bar. The sensors and metal bar are enclosed, i.e., surrounded on three sides, by a cover or shield of high magnetic permeability material such as steel or mu metal, for example. A permanent magnet is disposed in sensed proximity to the sensors and translates with a clutch actuator component. When the clutch actuator component translates axially, the two field sensors provide a signal to associated electronics having high linearity, low noise and no deadband.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: April 26, 2016
    Assignee: GM Global Technology Operations Inc.
    Inventors: Xinyu Zhou, Moussa Ndiaye, Michael Partridge, Xu Han, Michael McLeod
  • Patent number: 9322381
    Abstract: A remote start vehicle system for a vehicle is provided. The system includes a remote start requester configured to request that the engine be started. The remote start requester is operable to request that the engine be started when the remote start requester is located outside of the vehicle. A control module is configured to cause the engine to be started upon request from the remote start requester. A sensor assembly is configured to sense a neutral gear state of the transmission, where the neutral gear state indicates whether the transmission is in neutral. The sensor assembly is configured to communicate the neutral gear state to the control module. The control module is configured to prevent the engine from being started if the neutral gear state indicates that the transmission is not in neutral. A method of remotely starting an engine is also provided.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: April 26, 2016
    Assignee: GM Global Technology Operations Inc.
    Inventors: William L. Cousins, Bradford W. Bur
  • Patent number: 9321435
    Abstract: A system for locking a Park device in a transmission in an out-of-Park mode of operation includes a valve body that defines a bore, a solenoid connected to the valve body, a lock feature disposed in the valve body and interconnected with the solenoid, and a servo piston disposed within the bore of the valve body. The servo piston has a detent and the servo piston is interconnected to the Park device and is moveable between a first position and a second position. The detent is radially aligned with the lock feature when the servo piston is in the first position. Activation of the solenoid locks the lock feature into the detent of the servo piston to lock the Park device of the transmission in the no-Park mode.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: April 26, 2016
    Assignee: GM Global Technology Operations Inc.
    Inventors: Christopher J. Landino, Stephen W. Powell, Todd R. Berger
  • Patent number: 9322440
    Abstract: A clutch release mechanism for a vehicle powertrain is provided. The clutch release mechanism includes a piston operable to move in an axial direction along a central axis toward and away from a clutch assembly. An actuator bearing is disposed adjacent to the piston. The actuator bearing is configured to be pressed against the clutch assembly by the piston, and the actuator bearing is configured to rotate around the central axis. A plurality of fins is disposed around the actuator bearing and configured to rotate with the actuator bearing about the central axis.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: April 26, 2016
    Assignee: GM Global Technology Operations Inc.
    Inventor: Greg Alan Weeter
  • Patent number: 9109683
    Abstract: A transmission with an integrated electric motor includes an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 18, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Edward W. Mellet, Daryl A. Wilton, James M. Hart
  • Patent number: 9080666
    Abstract: A hydraulic control system for a transmission is provided. The hydraulic control system includes a source of pressurized hydraulic fluid that communicates with a discrete electronic transmission range selection (ETRS) subsystem. The hydraulic control system includes first and second mode valves located downstream of a hydraulic fluid pressure source. The mode valves are supplied with fluid via one or more solenoid valves or other valves. The mode valves have a plurality of ports configured to transfer pressurized hydraulic fluid. The first mode valve transfers pressurized hydraulic fluid from the source to the second mode valve. The second mode valve transfers pressurized hydraulic fluid from the first mode valve to one of drive or reverse. An electro-hydraulic circuit for pulling the transmission out of park and putting the transmission into park is also provided. A park sensor assembly including a Hall Effect sensor switch is also provided.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: July 14, 2015
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Todd R. Berger, Peter Donald Bock, John R. Czoykowski, Christopher J. Landino, Bradford E. Vorbeck, Stephen W. Powell
  • Patent number: 9080650
    Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The torque transmitting devices include clutches and brakes including a selectable one-way clutch actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: July 14, 2015
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Kent H. Kienzle, Dan Coffey, David M. Zini, John A. Diemer, Pete R. Garcia, Tejinder Singh, Boris Burgman
  • Patent number: 8857159
    Abstract: An exhaust system includes main line that runs through a three way converter (TWC) and then a lean NOx trap (LNT). The exhaust system further includes a bypass line configured to bypass the TWC. The LNT includes catalyst that is non-uniformly distributed along the longitudinal axis. The catalyst is distributed such that storage sites are weighted toward the upstream end of the LNT and oxidation and reduction sites are weighted toward the downstream end of the LNT.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: October 14, 2014
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Atul Pant, Karthik Ramanathan
  • Publication number: 20140153076
    Abstract: A method of reducing glare may include sensing a first light source with a second vehicle, and sensing a second light source with a first vehicle and oscillating a first light source ICF between a substantially opaque state and a substantially clear state on a first schedule. A second windscreen ICF may be oscillating between the substantially opaque state and the substantially clear state on a second schedule different from the first schedule. A position of the light source may be sensed and an eye position of the occupant estimated. An intersecting region of the selectively-darkenable ICF, which is located substantially along a line from the position of the light source to the eye position, is calculated. The intersecting region of the ICF is darkened, such that a reduced amount of light from the light source passes through the intersecting region.
    Type: Application
    Filed: January 13, 2014
    Publication date: June 5, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Asim Tewari, Rohit Gupta, Chandra S. Namuduri
  • Publication number: 20140093639
    Abstract: A product comprising a fuel cell component comprising a substrate and a coating overlying the substrate, the coating comprising nanoparticles having sizes ranging from 2 to 100 nanometers.
    Type: Application
    Filed: August 9, 2006
    Publication date: April 3, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Harald Schlag, Ralf Senner, Thomas A. Trabold, Thomas W. Tighe, Gayatri Vyas, Keith E. Newman
  • Patent number: 8682956
    Abstract: An onboard computer system including instructions causing a processor to store a first-user media profile indicating media preferences of a user. The processor also determines that the vehicle is encountering a second vehicle and receives a second-user media profile. The processor also evaluates the profiles to determine whether the profiles bear a predetermined similarity and, in response to determining the similarity exists, identifies recommended media, based on characteristics of the profiles, and initiates provision of the recommended media to one of the users of the first vehicle and the user of the second vehicle.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 25, 2014
    Assignee: GM Global Technology Operations, Inc
    Inventors: Fan Bai, Donald K. Grimm
  • Publication number: 20140081545
    Abstract: A method for controlling braking of a vehicle includes the steps of calculating a first pressure based on a driver request, and providing pressure that does not exceed a predetermined pressure threshold if the vehicle is stationary and the first pressure is less than the predetermined pressure threshold.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: PATRICK J. MONSERE, DANNY Y. MUI, KEVIN S. KIDSTON
  • Publication number: 20140037092
    Abstract: A method is provided for constructing a secret code in a processing unit when in communication with a portable security unit. Mutual authentication messages are exchanged between a linked portable security unit and processing unit. A first portion of the secret code is communicated to the processing unit. The processing unit combines the first portion and a second portion of the secret code stored in the non-volatile memory of the processing unit. The secret code is stored in a volatile memory of the processing unit. A secure operation is performed using the secret code. The portable security unit is de-linked from the processing unit. At least a portion of the secret code is deleted from the volatile memory of the processing unit.
    Type: Application
    Filed: August 2, 2012
    Publication date: February 6, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Debojyoti Bhattacharya, Sugato Chakrabarty, Bhargav R. Bellur
  • Publication number: 20130313243
    Abstract: A control circuit for a vehicle powertrain includes a switch that selectivity interrupts current flow between a first terminal and a second terminal. A first power source provides power to the first terminal and a second power source provides power to the second terminal and to a heater of a heated diesel particulate filter (DPF). The switch is opened during a DPF regeneration cycle to prevent the first power source from being loaded by the heater while the heater is energized.
    Type: Application
    Filed: January 18, 2008
    Publication date: November 28, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Eugene V. Gonze, Michael J. Paratore, JR.
  • Patent number: 8593253
    Abstract: A communication system is configured to operate in an ad hoc wireless network. The communication system includes a transmission device configured to send and receive a message, a signing module configured to generate a hierarchical signature using the message, and a verifying module configured to hierarchically verify a predetermined portion of a hierarchically signed message.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: November 26, 2013
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Aravind V. Iyer, Bhargav R. Bellur
  • Patent number: 8509993
    Abstract: Systems and methods for detecting road bank and determining road bank angle include determining a road bank angle as a function of difference in slip angle where the difference in slip angle is a function of difference in course angle and difference in yaw angle.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: August 13, 2013
    Assignee: GM Global Technology Operations, Inc
    Inventors: Jihan Ryu, Flavio Nardi, Kevin A. O'Dea, Hualin Tan