Patents by Inventor Maqsood Rizwan ALI KHAN
Maqsood Rizwan ALI KHAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10294878Abstract: A turbocharger control system of a vehicle includes a trigger module that generates a trigger signal when a transmission of the vehicle is in one of (i) park and (ii) neutral. A wastegate target module, in response to the generation of the trigger signal, sets a target opening of a turbocharger wastegate to a predetermined opening and independently of a position of an accelerator pedal. The predetermined opening is greater than zero percent opening of the turbocharger wastegate. A wastegate actuator module actuates the turbocharger wastegate based on the target opening of the turbocharger wastegate.Type: GrantFiled: March 24, 2016Date of Patent: May 21, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Maqsood Rizwan Ali Khan, Mark R. Claywell, Scott M. Reilly
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Publication number: 20190136746Abstract: Provided are methods controlling systems including a turbocharger configured to compress air for an engine, a cooler configured to receive turbocharged compressed air, a radiator, a coolant circuit for circulating coolant between the cooler and the radiator and including a bypass to manipulate coolant flow through the cooler. The methods include closing the bypass when engine speed and/or load exceeds a threshold, and otherwise one or more of reducing coolant flow through the cooler when the coolant temperature entering the cooler is higher than the compressed air temperature entering the cooler, manipulating coolant flow through the cooler based on the temperature of the compressed air received by the engine, and reducing coolant flow through the cooler when the temperature of the coolant entering the radiator is less than a temperature of the ambient air. Reducing coolant flow through the cooler reduces the coolant pressure drop within the coolant circuit.Type: ApplicationFiled: November 6, 2017Publication date: May 9, 2019Inventors: Mark R. Claywell, Maqsood Rizwan Ali Khan
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Publication number: 20190047641Abstract: An automotive vehicle includes a body with a central plane extending vertically along a longitudinal center of the body, with first and second sides on opposing sides of the central plane. The vehicle additionally includes a first movable member coupled to the first side. The first movable member has a first stowed position and a first deployed position. In the first deployed position the first movable member induces a first pressure differential between the first side and the second side. The vehicle also includes a first actuator configured to move the first movable member between the first stowed position and the first deployed position. The vehicle further includes a controller configured to, in response to satisfaction of a first operating condition, control the first actuator to move the first movable member from the first stowed position to the first deployed position.Type: ApplicationFiled: August 8, 2017Publication date: February 14, 2019Inventors: Mark R. Claywell, Maqsood Rizwan Ali Khan, Marsella L. White
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Patent number: 10190486Abstract: A turbocharger includes a compressor wheel configured to pressurize an airflow for delivery to an internal combustion engine. The turbocharger also includes a turbine wheel configured to be driven by the engine's post-combustion gases and drive the compressor wheel. The turbocharger additionally includes a waste-gate assembly. The waste-gate assembly includes a first waste-gate valve and a second waste-gate valve, wherein each of the first and second waste-gate valves is configured to selectively redirect at least a portion of the post-combustion gases away from the turbine wheel into the exhaust passage. A vehicle having an internal combustion engine operatively connected to such a turbocharger and also employing a controller configured to regulate the first and second waste-gate valves is also disclosed.Type: GrantFiled: August 10, 2016Date of Patent: January 29, 2019Inventors: Maqsood Rizwan Ali Khan, Pulasti Bandara, Mark R. Claywell
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Publication number: 20180306103Abstract: A vehicle powertrain includes an engine having an air intake system and an exhaust system. A turbocharger includes a turbine section connected to the exhaust system and a compressor section connected to the air intake system. A wastegate is disposed in the exhaust system and movable between an open and a closed position by an actuator system. The actuator system includes a gear mechanism for moving the waste gate from a closed to an open position and including a pair of noncircular gears.Type: ApplicationFiled: April 20, 2017Publication date: October 25, 2018Inventors: Mark R. CLAYWELL, Dale A. FRANK, Maqsood Rizwan ALI KHAN
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Patent number: 10072565Abstract: A vehicle powertrain includes an engine having an air intake system and an exhaust system. A turbocharger includes a turbine section connected to the exhaust system and a compressor section connected to the air intake system. A wastegate is disposed in the exhaust system and movable between an open and a closed position by an actuator system. The actuator system includes an engagement device and detent mechanism for assisting with holding the wastegate in the closed position.Type: GrantFiled: June 15, 2016Date of Patent: September 11, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Maqsood Rizwan Ali Khan, Pulasti Bandara, Mark R. Claywell
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Publication number: 20180216548Abstract: A method and system for determining a drive ratio of a supercharger in a vehicle propulsion system includes sensing an engine speed of an engine in the propulsion system, providing an engine speed signal based upon the sensed engine speed, sensing an inlet air pressure of the supercharger, providing a supercharger inlet air pressure signal based upon the sensed supercharger inlet air pressure over a dedicated communication channel to a processor in the vehicle, and determining, in the processor, a drive ratio for the supercharger based upon the engine speed signal, the supercharger inlet air pressure signal, and a lobe count of the supercharger.Type: ApplicationFiled: February 1, 2017Publication date: August 2, 2018Inventors: Mark R Claywell, Maqsood Rizwan Ali Khan
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Patent number: 10015596Abstract: An audio control system of a vehicle includes a sound control module configured to determine N magnitudes for outputting a predetermined engine sound at N frequencies, respectively, where N is an integer greater than one. A magnitude adjustment module is configured to determine at least one N magnitude adjustment values for the N frequencies, respectively, based on at least one of: an intake air temperature; and an exhaust temperature. The sound control module is further configured to determine N adjusted magnitudes for the predetermined engine sound at the N frequencies based on: the N magnitudes for the N frequencies, respectively; and the N magnitude adjustment values for the N frequencies, respectively. An audio driver module is configured to apply power to at least one speaker of the vehicle and output the predetermined engine sound at the N frequencies and the N adjusted magnitudes for the N frequencies, respectively.Type: GrantFiled: March 21, 2017Date of Patent: July 3, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mark R. Claywell, Maqsood Rizwan Ali Khan, Scott M. Reilly
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Patent number: 9995256Abstract: An engine includes a cylinder block defining a bank of cylinders having physically adjacent first and second cylinders. The engine also has a gas compressor configured to pressurize an ambient airflow for delivery to the first cylinder and the second cylinder. The engine additionally has intake valves configured to control delivery of the pressurized airflow as a first airstream to the first cylinder and a second airstream to the second cylinder for combustion therein. A firing interval for the two adjacent cylinders results in the first airstream temporally overlapping the second airstream. A charge-air cooler is configured to cool the pressurized airflow prior to delivery thereof to the first and second cylinders and includes a cold-side plenum for discharging the pressurized airflow toward the first and second cylinders. A partition in the cold-side plenum is configured to separate the first airstream from the second airstream and thereby minimize interference therebetween.Type: GrantFiled: January 4, 2016Date of Patent: June 12, 2018Assignee: GM Global Technology Operations LLCInventors: Mark R. Claywell, Maqsood Rizwan Ali Khan
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Publication number: 20180065641Abstract: A method and apparatus for detecting a size of a person at an exterior of the space to be occupied are provided. The method includes: detecting, at an exterior of a vehicle, a size of a person approaching the vehicle to enter the vehicle; and adjusting a position of at least one from among a vehicle control, a vehicle mirror, and a vehicle seat based on the detected size of the person approaching the vehicle. The method and apparatus may be used to detect the size of a person intending to occupy a vehicle and to adjust positioning of various elements and controls based on the detected size prior to entering the vehicle.Type: ApplicationFiled: September 8, 2016Publication date: March 8, 2018Inventors: Mark R. Claywell, Maqsood Rizwan Ali Khan, Pulasti Bandara
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Patent number: 9908531Abstract: A method and apparatus for detecting a size of a person at an exterior of the space to be occupied are provided. The method includes: detecting, at an exterior of a vehicle, a size of a person approaching the vehicle to enter the vehicle; and adjusting a position of at least one from among a vehicle control, a vehicle mirror, and a vehicle seat based on the detected size of the person approaching the vehicle. The method and apparatus may be used to detect the size of a person intending to occupy a vehicle and to adjust positioning of various elements and controls based on the detected size prior to entering the vehicle.Type: GrantFiled: September 8, 2016Date of Patent: March 6, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mark R. Claywell, Maqsood Rizwan Ali Khan, Pulasti Bandara
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Publication number: 20180045104Abstract: A turbocharger includes a compressor wheel configured to pressurize an airflow for delivery to an internal combustion engine. The turbocharger also includes a turbine wheel configured to be driven by the engine's post-combustion gases and drive the compressor wheel. The turbocharger additionally includes a waste-gate assembly. The waste-gate assembly includes a first waste-gate valve and a second waste-gate valve, wherein each of the first and second waste-gate valves is configured to selectively redirect at least a portion of the post-combustion gases away from the turbine wheel into the exhaust passage. A vehicle having an internal combustion engine operatively connected to such a turbocharger and also employing a controller configured to regulate the first and second waste-gate valves is also disclosed.Type: ApplicationFiled: August 10, 2016Publication date: February 15, 2018Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Maqsood Rizwan Ali Khan, Pulasti Bandara, Mark R. Claywell
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Publication number: 20170362996Abstract: A vehicle powertrain includes an engine having an air intake system and an exhaust system. A turbocharger includes a turbine section connected to the exhaust system and a compressor section connected to the air intake system. A wastegate is disposed in the exhaust system and movable between an open and a closed position by an actuator system. The actuator system includes an engagement device and detent mechanism for assisting with holding the wastegate in the closed position.Type: ApplicationFiled: June 15, 2016Publication date: December 21, 2017Inventors: Maqsood Rizwan ALI KHAN, Pulasti BANDARA, Mark R. CLAYWELL
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Publication number: 20170306878Abstract: An internal combustion engine includes an engine structure defining a cylinder having an intake port and an exhaust port. A piston is disposed in the cylinder and is drivingly connected to a crankshaft. A direct injection system injects fuel directly into the cylinder. A port fuel injection system injects fuel into the intake port. An oil temperature sensor and an engine speed sensor are in communication with a controller that controls the direct injection system and the port fuel injection system based on measured oil temperature and engine speed. In particular, the controller employs a control algorithm that alters the direct injection and port fuel injection split based on the measured oil temperature and engine speed. The maximum direct injection pressure reduction is limited by a maximum allowable port fuel injection duty cycle as determined by the controller.Type: ApplicationFiled: April 20, 2016Publication date: October 26, 2017Inventors: Mark R. CLAYWELL, Maqsood Rizwan ALI KHAN, Bryan K. PRYOR
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Publication number: 20170297487Abstract: Methods, systems, and vehicles are provided for determining whether one or more doors of a vehicle are expected to contact the one or more objects when opened. In accordance with one embodiment, the vehicle includes, in addition to the one or more doors, one or more sensors, a memory, and a processor. The one or more sensors are configured to generate sensor data pertaining to one or more objects in proximity to a vehicle. The memory is configured to store a door geometry for the one or more doors. The processor is coupled to the one or more sensors and to the memory, and is configured to at least facilitate determining whether the one or more doors are expected to contact the one or more objects when opened, using the sensor data and the door geometry.Type: ApplicationFiled: April 14, 2016Publication date: October 19, 2017Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: MAQSOOD RIZWAN ALI KHAN, MARK R. CLAYWELL, PULASTI BANDARA
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Publication number: 20170297412Abstract: A method of controlling a HVAC system of a vehicle includes repeatedly sensing an area of a window of the vehicle that is not covered by frost with a sensor positioned adjacent the window. When the sensed area not covered by frost is less than an area threshold value, a HVAC controller controls the HVAC system to operate in a defrost mode. When the sensed area not covered by frost is equal to or greater than the area threshold value the HVAC controller controls the HVAC system to operate in a cabin heating mode. The HVAC controller automatically switches the HVAC system from the defrost mode to the cabin heating mode when the sensed area not covered by frost increases to a value that is equal to or greater than the area threshold value.Type: ApplicationFiled: April 13, 2016Publication date: October 19, 2017Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Pulasti Bandara, Maqsood Rizwan Ali Khan, Mark R. Claywell
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Publication number: 20170241354Abstract: A turbocharger control system of a vehicle includes a trigger module that generates a trigger signal when a transmission of the vehicle is in one of (i) park and (ii) neutral. A wastegate target module, in response to the generation of the trigger signal, sets a target opening of a turbocharger wastegate to a predetermined opening and independently of a position of an accelerator pedal. The predetermined opening is greater than zero percent opening of the turbocharger wastegate. A wastegate actuator module actuates the turbocharger wastegate based on the target opening of the turbocharger wastegate.Type: ApplicationFiled: March 24, 2016Publication date: August 24, 2017Inventors: Maqsood Rizwan ALI KHAN, Mark R. CLAYWELL, Scott M. REILLY
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Publication number: 20170191453Abstract: An engine includes a cylinder block defining a bank of cylinders having physically adjacent first and second cylinders. The engine also has a gas compressor configured to pressurize an ambient airflow for delivery to the first cylinder and the second cylinder. The engine additionally has intake valves configured to control delivery of the pressurized airflow as a first airstream to the first cylinder and a second airstream to the second cylinder for combustion therein. A firing interval for the two adjacent cylinders results in the first airstream temporally overlapping the second airstream. A charge-air cooler is configured to cool the pressurized airflow prior to delivery thereof to the first and second cylinders and includes a cold-side plenum for discharging the pressurized airflow toward the first and second cylinders. A partition in the cold-side plenum is configured to separate the first airstream from the second airstream and thereby minimize interference therebetween.Type: ApplicationFiled: January 4, 2016Publication date: July 6, 2017Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mark R. Claywell, Maqsood Rizwan Ali Khan
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Publication number: 20170114710Abstract: A charge air cooler includes a plurality of coolant passages spaced from one another and in communication with an inlet port and an outlet port. A plurality of air cooling fins are disposed between adjacent ones of the plurality of coolant passages, wherein the charge air cooler defines a first region wherein the air cooling fins have a first fin density and a second region wherein the air cooling fins have a second fin density different than the first fin density. The air cooling fins can also be provided with different louver shapes or designs in order to tailor, improve or unify the heat transfer rate at different regions of the charge air cooler.Type: ApplicationFiled: July 13, 2016Publication date: April 27, 2017Inventors: Stephen Joseph SANTAVICCA, Mark R. CLAYWELL, Maqsood Rizwan ALI KHAN