GM GLOBAL TECHNOLOGIES OPERATIONS LLC Patent applications |
Patent application number | Title | Published |
20150198082 | Turbocharged Internal Combustion Engine With Pre-Charge Air Cooler - An internal combustion engine is provided including an engine block defining a plurality of cylinders. A cylinder head is attached to the engine block and includes a plurality of intake ports and a plurality of exhaust ports in communication with the plurality of cylinders. An intake manifold is in communication with the plurality of intake ports and an exhaust passages connect to the plurality of exhaust ports. A turbocharger is in communication with the exhaust passage and has an impeller driven by exhaust gasses from the exhaust passage. The turbocharger includes a compressor for supplying compressed air to the throttle body. A water-to-air pre-charge air cooler is disposed in a flow passage between an outlet of the compressor and the throttle body. | 07-16-2015 |
20150081211 | SENSOR-AIDED VEHICLE POSITIONING SYSTEM - A method and system for localizing a vehicle in a digital map includes generating GPS coordinates of the vehicle on the traveled road and retrieving from a database a digital map of a region traveled by the vehicle based on the location of the GPS coordinates. The digital map includes a geographic mapping of a traveled road and registered roadside objects. The registered roadside objects are positionally identified in the digital map by longitudinal and lateral coordinates. Roadside objects in the region traveled are sensed by the vehicle. The sensed roadside objects are identified on the digital map. A vehicle position on the traveled road is determined utilizing coordinates of the sensed roadside objects identified in the digital map. The position of the vehicle is localized in the road as a function of the GPS coordinates and the determined vehicle position utilizing the coordinates of the sensed roadside objects. | 03-19-2015 |
20140297164 | STOCHASTIC PRE-IGNITION (SPI) MITIGATION USING AN ADAPTIVE SPI SCALER - A system includes a control module and a stochastic pre-ignition (SPI) module. The control module controls at least one performance parameter of an engine of a vehicle. The SPI module detects SPI events, determines a scaling factor based on the detected SPI events, and adjusts a limit associated with the at least one performance parameter based on the scaling factor. The control module controls the at least one performance parameter based on the limit. | 10-02-2014 |
20140069378 | EFFECTIVE CYLINDER COUNT CONTROL SYSTEMS AND METHODS - Based on a desired average number of activated cylinders per sub-period of a predetermined period including P sub-periods, a cylinder control module selects one of N predetermined cylinder activation/deactivation patterns. The selected cylinder activation/deactivation pattern corresponds to Q activated cylinders per sub-period, Q is an integer between zero and a total number of cylinders of an engine, inclusive, P is an integer greater than one, and the desired average number of active cylinders is a number between zero and the total number of cylinders of the engine. The cylinder control module also determines an adjusted cylinder activation/deactivation pattern based on the selected predetermined cylinder activation/deactivation pattern, generates a desired cylinder activation/deactivation pattern for the predetermined period using the selected predetermined cylinder activation/deactivation pattern during a first number of the P sub-periods and using the adjusted cylinder activation/deactivation pattern during a second number of the P sub-periods. | 03-13-2014 |
20120158213 | VEHICLE DATA SERVICES ENABLED BY LOW POWER FM TRANSMISSION - A vehicle system and method that include a smart phone for communicating with a vehicle by an authorized user. The vehicle includes an FM transmitter that transmits vehicle information, including an authorization code, using an FM signal. The FM signal is received by the smart phone which deciphers the information, and automatically transmits a command signal back to the vehicle to perform a pre-programmed vehicle operation, such as unlocking the vehicle doors. | 06-21-2012 |