Abstract: A silencer for a motor vehicle and in particular air intake or exhaust gas lines and/or HVAC air passageways is disclosed. The silencer includes a pipe arranged in a housing, which defines a duct and an annular orifice arrangement having a first annular orifice which extends from the pipe to the housing. The housing and pipe form a chamber arrangement with a first chamber and a second chamber, which are separated by the first annular orifice and communicate with the duct through apertures in the pipe. The housing is designed integrally with a first connector and the pipe integrally with a second connector, which communicate with the duct, and in particular merge into the duct.
Abstract: A method for generating a glare-reduced image from images captured by a camera device of a subject vehicle includes obtaining a short-exposure image and a long-exposure image and generating a resulting high dynamic range image based on the short-exposure and long-exposure images. Pixel values are monitored within both the short- and long-exposure images. A light source region is identified within both the short- and long-exposure images based on the monitored pixel values. A glaring region is identified based on the identified light source region and one of calculated pixel ratios and calculated pixel differences between the monitored pixel values of the long- and short-exposure images. The identified glaring region upon the resulting high dynamic range image is modified with the identified light source region within the short-exposure image. The glare-reduced image is generated based on the modified identified glaring region upon the resulting HDR image.
Type:
Grant
Filed:
September 30, 2013
Date of Patent:
April 5, 2016
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Wende Zhang, Jinsong Wang, Kent S. Lybecker, Jeffrey S. Piasecki, Ryan M. Frakes, Travis S. Hester
Abstract: A system and method for efficiently updating the map database in a mobile computing system, such as a vehicle navigation system. The system includes a central server that computes changes between the latest version of a master map database and a previous version of the map database, and wirelessly transmits the changes to participating vehicles' onboard navigation systems. The navigation system stores the changes in a look-aside buffer, and a navigation processor uses the stored changes to update a base map database.
Abstract: A powertrain for a vehicle and a method of assembling the powertrain are disclosed. An engine includes a crankshaft being rotatable about a longitudinal axis. A ring gear is attached to a first distal end of the crankshaft such that the ring gear and the crankshaft are rotatable in unison about the longitudinal axis. A starter mechanism is selectively operable to rotate the ring gear and the crankshaft to start the engine. A motor-generator includes an adapter selectively cooperating with the starter mechanism to dispose the motor-generator and the starter mechanism in alternative assembly configurations being a first assembly configuration and a second assembly configuration. The first assembly configuration is when the starter mechanism is coupleable to the adapter and the second assembly configuration is when the starter mechanism is spaced from the adapter to operate independently of the motor-generator.
Type:
Grant
Filed:
March 13, 2014
Date of Patent:
April 5, 2016
Assignee:
GM Global Technology Operations LLC
Inventors:
Alan G. Holmes, Alexandru Rajala, Chandra S. Namuduri, Venkata Prasad Atluri
Abstract: Sheet metal workpieces are preheated to a temperature in the range of about 100° C. to about 500° C. for warm forming between press-actuated forming dies. The forming dies are not heated, but are coated with a liquid lubricating material suitable for the forming of the preheated sheet metal workpiece. For example, the liquid lubricating material is suitably a halogenated hydrocarbon that will adhere to unheated die surfaces and serve in the forming of the sheet metal workpiece into a vehicle body panel or other product. But the liquid lubricating material is composed so as to evaporate from surfaces of the formed workpiece at a temperature below about 200° C., so that the workpiece does not have to be cleaned before it is decoratively finished. The lubricant material may be vaporized, for example, into a warm stream of air or nitrogen and carried to a recovery or disposal system.
Abstract: A universal oil pan die tooling is provided for forming alternative oil pans for alternative internal combustion engines with and without an oil cooler circuit. The die tooling includes a first die member defining a cavity and a second die member having a protruding portion designed to be inserted in the cavity of the first die member to define a mold cavity therebetween that defines a shape of the oil pan. A first die insert is used along with the first die member and the second die member to form oil pans for use with an engine having an oil cooler. An alternative second die insert is used in place of the first die insert along with the first die member and the second die member to form oil pans for use with an engine without an oil cooler.
Type:
Grant
Filed:
October 9, 2013
Date of Patent:
April 5, 2016
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Steven G. Bryde, Kevin Herrala, Michael B. Fleck, Michael S. Ferrand
Abstract: An adaptive audio system for a motor vehicle is disclosed. The audio system is operable to retrieve a music item from a storage device, classify the music item in a predefined music category the basis of a determined audio profile, select a category from a plurality of predefined music categories on the basis of a current driving behavior of the driver, and output a music item included in the selected category via an output device. The driving behavior of the driver is understood to mean the mode or style in which the driver drives.
Abstract: A system for controlling an engine having a first turbocharger, a second turbocharger and a cutoff valve that regulates exhaust flow through a turbine of the second turbocharger, the system comprising: a speed determination module that determines a current speed of the first turbocharger, determines a current speed of the second turbocharger, and determines a target speed of the second turbocharger based on the current speed of the first turbocharger; and a boost control module that compares the target speed of the second turbocharger with the current speed of the second turbocharger, and that selectively adjusts a position of a cutoff valve to adjust the current speed of the second turbocharger based on the comparison.
Abstract: A fuel supply system for supplying a bi-fuel engine with a first fuel type, e.g., gasoline, includes a cooling circuit. The cooling circuit circulates the first fuel type through a direct injection pump assembly to prevent the first fuel type from overheating within the direct injection pump assembly.
Abstract: A filtration device for a fuel cell system is provided. The filtration device includes a filter adapted to receive a reactant for a fuel cell. The filter includes a molecular sieve material adapted to separate a contaminant from the reactant supplied to the fuel cell. A membrane electrode assembly having the filter integrally formed therewith, and a fuel cell stack having the filter disposed adjacent at least one of the end plates of the fuel cell stack, are also provided.
Type:
Grant
Filed:
June 25, 2008
Date of Patent:
April 5, 2016
Assignee:
GM Global Technology Operations LLC
Inventors:
Kelly O'Leary, Sean Mackinnon, Michael Budinski
Abstract: A method of detecting a thermal event is provided that relies not only on monitored exhaust temperatures, but also on temperature gradients propagating in the direction of exhaust flow. Specifically, the method of detecting a thermal event in a vehicle exhaust system includes monitoring at least one operating parameter at multiple locations spaced in exhaust flow of the vehicle exhaust system. The method then includes initiating a protective action if the monitoring indicates that at least one respective predetermined temperature requirement and a respective predetermined temperature gradient requirement are exceeded at two of the multiple temperature sensor locations within a predetermined time period.
Type:
Grant
Filed:
January 18, 2012
Date of Patent:
April 5, 2016
Assignee:
GM Global Technology Operations LLC
Inventors:
Benjamin Radke, Vincent J. Tylutki, Janean E. Kowalkowski
Abstract: A method for maximizing regenerative energy captured by an electric machine in a powertrain including an engine, the electric machine and a transmission device configured to transfer torque through a driveline includes detecting an operator brake request and monitoring a time between the detected operator brake request and a preceding operator brake request that was last detected. A maximized regenerative deceleration event is initiated if the time exceeds a predetermined threshold time that includes monitoring a current fixed gear ratio that is selected from among a plurality of fixed gear ratios of the transmission device when the operator brake request is detected and applying a magnitude of torque at the axle that is sufficient for achieving a maximum capability of the electric machine to capture regenerative energy in the current fixed gear ratio.
Type:
Grant
Filed:
September 5, 2013
Date of Patent:
April 5, 2016
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
William L. Aldrich, III, Matthew Hawkins, Sean W. McGrogan
Abstract: An elastically averaged alignment system includes a first component and a second component. The first component includes a first alignment member and an elastically deformable alignment element fixedly disposed with respect to the first alignment member. The second component includes a second alignment member and an alignment feature fixedly disposed with respect to the second alignment member. The elastically deformable alignment element is configured and disposed to interferingly, deformably and matingly engage the alignment feature. The elastically deformable alignment element includes a lobular hollow tube having a cross-section having at least three outwardly oriented lobes relative to a central axis of the hollow tube, and the alignment feature includes a circular aperture.
Abstract: An apparatus for capturing an image includes a plurality of lens elements coaxially encompassed within a lens housing. One of the lens elements includes an aspheric lens element having a surface profile configured to enhance a desired region of a captured image. At least one glare-reducing element coaxial with the plurality of lens elements receives light subsequent to the light sequentially passing through each of the lens elements. An imaging chip receives the light subsequent to the light passing through the at least one glare-reducing element. The imaging chip includes a plurality of green, blue and red pixels.
Type:
Grant
Filed:
September 30, 2013
Date of Patent:
April 5, 2016
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Wende Zhang, Jinsong Wang, Kent S. Lybecker, Jeffrey S. Piasecki, Ryan M. Frakes, Travis S. Hester