Abstract: A shutter set includes a first vane and a first vane stop. The first vane is moveable between a first position and a second position. The first vane stop is selectively moveable between a locking position and a free position, relative to the first vane. The first vane stop is configured to apply a bias force or is configured to bias the first vane by a predetermined clearance distance when the first vane stop is in the locking position, and is configured to allow movement of the first vane between the first position and the second position when the first vane stop is in the free position.
Type:
Application
Filed:
June 3, 2011
Publication date:
December 6, 2012
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Scott P. Charnesky, Nilesh D. Mankame, Paul W. Alexander
Abstract: A method is provided for rapidly identifying potential collision threats between communicating vehicles in a vehicle communication network for actuating a vehicle control action to mitigate potential collisions between the communicating vehicles. Vehicle boundaries and trajectory path boundaries are constructed for the communicating vehicles for efficiently identifying a potential collision. Prioritized assessments are performed to determine which respective boundaries intersect one another. Based on whether respective boundaries that intersect one another will determine if a control vehicle control action is initiated and which control action is imitated. Once the intersecting boundaries are identified, a location of the potential collision can be rapidly identified by a technique that subdivides and regenerates the intersecting trajectory path boundaries of the vehicles.
Abstract: A method and system may determine the estimated location of a vehicle, measure a location of an object relative to the vehicle using a sensor associated with the vehicle, and determine an updated vehicle location using the measured relative object location in conjunction with previously stored object locations. The estimated vehicle location may be determined using a system different from that associated with the sensor, for example a GPS system. The object location may be measured relative to a sub-map corresponding to the location of the vehicle.
Abstract: An exhaust gas treatment system is provided, having an internal combustion engine, an exhaust gas conduit, an electrically heated catalyst (“EHC”) device, an oxidization catalyst (“OC”) device, an OC temperature sensor, a hydrocarbon (“HC”) adsorber, and a control module. The hydrocarbon supply is selectively activated for delivery of a hydrocarbon and formation of an exhaust gas and hydrocarbon mixture therein. The EHC device is selectively activated to produce heat and induce oxidization. The OC device is in fluid communication with the exhaust gas conduit and located downstream of the EHC device. The OC temperature sensor is in fluid communication with the exhaust gas conduit and located downstream of the OC device. The HC adsorber is located downstream of the EHC device. The control module is in communication with the hydrocarbon supply, the EHC device, the OC device, the OC temperature sensor, and the HC adsorber.
Type:
Application
Filed:
June 6, 2011
Publication date:
December 6, 2012
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Eugene V. Gonze, Michael J. Paratore, JR., Christopher J. Kalebjian
Abstract: A shading system in accordance with an exemplary embodiment is provided. The shading system includes a roof guiding arrangement and a shading arrangement movable into various shading positions in the roof guiding arrangement so as to variably shade a passenger compartment. A restraining arrangement is configured to restrain the shading arrangement independently of position and/or as a function of acceleration to prevent an unintended shifting of the shading arrangement.
Abstract: Systems and methods are provided for initiating a charging system. The method, for example, may include, but is not limited to, providing, by the charging system, an incrementally increasing voltage to a battery up to a first predetermined threshold while the energy conversion module has a zero-percent duty cycle, providing, by the charging system, an incrementally increasing voltage to the battery from an initial voltage level of the battery up to a peak voltage of a voltage source while the energy conversion module has a zero-percent duty cycle, and providing, by the charging system, an incrementally increasing voltage to the battery by incrementally increasing the duty cycle of the energy conversion module.
Type:
Application
Filed:
May 31, 2011
Publication date:
December 6, 2012
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Ray M. RANSOM, Milun PERISIC, Lateef A. KAJOUKE
Abstract: A fuel cell system includes a water vapor transfer unit and a fluid flow distribution feature, the water vapor transfer unit including a first plate having a plurality of first flow channels for receiving a flow of a first fluid therein, and a second plate having a plurality of second flow channels for receiving a flow of a second fluid therein. The fluid flow distribution feature is configured to control at least one of a volume of flow of the first fluid through the first flow channels and a volume of flow of the second fluid through the second flow channels, wherein at least one of a flow distribution of the first fluid across the first plate and a flow distribution of the second fluid across the second plate is varied.
Type:
Application
Filed:
June 3, 2011
Publication date:
December 6, 2012
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Yan Zhang, Steven R. Falta, Steven D. Burch, Glenn W. Skala
Abstract: A powertrain system includes an internal combustion engine and an electric machine coupled via a torque transfer device to a transmission. A method for operating the powertrain system to transfer torque to a driveline includes establishing an operating torque security limit that is a default torque security limit. The operating torque security limit is set to an override limit when engine speed is less than a threshold speed. A torque security fault is detected only when a combined torque output from the internal combustion engine and the electric machine to the torque transfer device deviates from an operator torque request by an amount greater than the operating torque security limit.
Type:
Application
Filed:
June 2, 2011
Publication date:
December 6, 2012
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Thomas E. Ganley, Sean W. McGrogan, Jeong J. Park, Anthony H. Heap
Abstract: Methods and systems are provided for charging an energy storage system of a vehicle. A processor is coupled to an arm. The processor is configured to obtain a position of the vehicle. The processor is further configured to guide the arm to locate a charging receptacle of the vehicle based on the position and to insert the charging device into the charging receptacle.
Type:
Application
Filed:
June 3, 2011
Publication date:
December 6, 2012
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Anthony L. SMITH, Dalong GAO, Vincent M. CONFORTI, Roland J. Menassa
Abstract: A method for a motor vehicle includes using a regenerative brake system that produces electric current as a result of application of said regenerative brakes and sending at least a fraction of the electric current directly to an electrical accessory of the vehicle and bypassing the battery. One electrical accessory may be an electrically heated catalytic converter.
Abstract: An engine assembly includes an engine structure, an air intake assembly and a positive crankcase ventilation system. The engine structure defines an intake port and a crankcase. Furthermore, the air intake assembly is in communication with the intake port. The positive crankcase ventilation system includes a fresh air line, a housing and a foul air line. The fresh air line is in communication with the air intake assembly and the crankcase. The housing defines an air inlet and an air outlet with the air inlet being in communication with the crankcase and partially defined by a wall extending into an inner volume of the housing. An oil separation mechanism may be located in the housing between the air inlet and the air outlet. The foul air line is in communication with the air intake assembly and the air outlet.
Abstract: A charging system is provided for an electric vehicle. A vehicle battery stores electrical energy used to drive the electric vehicle. A refillable storage device is carried by the vehicle for storing compressed fluid from an off-vehicle supply of compressed fluid. An expander is in fluid communication with the refillable storage device. The expander selectively receives the compressed fluid from the refillable storage device when the vehicle battery is in need of charging and generates a rotational energy in response to the compressed fluid flowing through the expander. A generator is rotationally coupled to the expander and electrically coupled to the vehicle battery for converting the rotational energy into electrical energy that is transferred to and stored by the vehicle battery.
Abstract: A porous thin-film polymer separator for use in a lithium ion battery may be formed by a phase separation method in which hydrophobic-treated ceramic particles are used to help induce the formation of a tortuous, interconnected network of pores coextensively across the thickness of the separator. As part of the phase separation method, a wet thin-film layer is formed from a polymer slurry that comprises a polymer solvent in which a polymer material is dissolved and the hydrophobic-treated ceramic particles are dispersed. The wet thin-film layer is subsequently exposed to a polymer non-solvent to form a solvent-exchanged thin-film precipitated polymer layer which is then heated to produce the separator.
Abstract: One aspect of the invention is a method of surface alloying stainless steel, In one embodiment, the method includes providing a stainless steel surface having an initial amount of iron and an initial amount of chromium; and preferentially removing iron from the stainless steel surface to obtain a surface having an amount of iron less than the initial amount of iron and an amount of chromium greater than the initial amount of chromium. Another aspect of the invention is a unitary stainless steel article.
Type:
Application
Filed:
June 6, 2011
Publication date:
December 6, 2012
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Mahmoud H. Abd Elhamid, Gayatri Vyas Dadheech
Abstract: A method for controlling output torque of a hybrid powertrain system includes determining a constrained output torque in response to an operator torque request, and determining maximum and minimum output torque limits. A time-rate change in the constrained output torque at each of a plurality of torque breakpoints is determined A desired output torque is determined A preferred output torque is determined as the desired output torque adjusted using the time-rate changes in the constrained output torque at the plurality of torque breakpoints and limited within the maximum and minimum output torque limits. Torque outputs of torque generators of the hybrid powertrain system are controlled in response to the preferred output torque.
Type:
Application
Filed:
June 3, 2011
Publication date:
December 6, 2012
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
MICHAEL ARNETT, KRUNAL P. PATEL, SEAN W. MCGROGAN, ADAM J. HEISEL
Abstract: A method and system for using an existing open-environment hydrogen sensor for detecting hydrogen leaking from an atmospheric reference port of a pressure regulator. The atmospheric reference port extension tube of one or more pressure regulators in a hydrogen storage system is routed past a hydrogen sensor which is already used to monitor air around the hydrogen storage system for the presence of hydrogen.
Abstract: An optimized fluid valve port has the following features: 1) the seal is preferably a standard O-ring seated in a rectilinear seal channel of one of a first or second valve body, 2) the unsupported span of the O-ring during valve port crossing is limited to a length of less than approximately three O-ring diameters, the support being provided by a web disposed between port openings; and 3), within the area of the O-ring, the fluid flow area of the fluid valve port is maximized.
Type:
Application
Filed:
May 31, 2011
Publication date:
December 6, 2012
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Brian K. Bartnick, Pablo Valencia, JR., Corry W. Johnson, Bill F. Tompkins
Abstract: Tin powder is heated in a flowing stream of an inert gas, such as argon, containing a small concentration of carbon-containing gas, at a temperature to produce metal vapor. The tin deposits as liquid on a substrate, and reacts with the carbon-containing gas to form carbon nanotubes in the liquid tin. Upon cooling and solidification, a composite of tin nanowires bearing coatings of carbon nanotubes is formed.
Type:
Application
Filed:
August 13, 2012
Publication date:
December 6, 2012
Applicants:
THE UNIVERSITY OF WESTERN ONTARIO, GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Xueliang SUN, Ruying LI, Yuqin ZHOU, Mei CAI, Hao LIU
Abstract: An engine is fueled with a fuel blend of diesel and bidiesel fuel. A feed forward fuel control term is provided corresponding to a 100 percent diesel fuel blend and a feedback fuel control term corrects for lambda deviations resulting in a final fuel control term. During regeneration of a lean Nox trap, the feed forward fuel control term is adapted with a factor as a function of the feed forward fuel control term and the final fuel control term.
Abstract: A method to control an internal combustion engine includes operating the engine with a fuel blend of a first fuel and a second fuel, monitoring a value of a first combustion parameter during engine operation, monitoring a first value for a second combustion parameter during engine operation, determining a second value for the second combustion parameter in accordance with a predetermined correspondence among the first combustion parameter, the second combustion parameter, and a predetermined fuel blend of the first fuel and the second fuel, determining the fuel blend based upon a difference between the first and second values for the second combustion parameter, and controlling the engine based upon the fuel blend.