Patents by Inventor Vivek Mehta
Vivek Mehta 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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Publication number: 20240068487Abstract: A vane arrangement for a compressor is disclosed. The vane arrangement comprises a generally annular vane deck and at least one vane. The generally annular vane deck extends at least partway around a longitudinal axis, defining a deck thickness b in the axial direction. The at least one vane projects from a first surface of the vane deck. The at least one vane comprises a leading edge, a trailing edge, and first and second pressure surfaces. The leading edge is proximate the longitudinal axis. The trailing edge is distal the longitudinal axis. The first and second pressure surfaces extend between the leading edge and the trailing edge. The at least one vane defines a neck thickness t, proximate the leading edge, in a plane normal to the longitudinal axis, wherein t/b?about 0.21.Type: ApplicationFiled: December 3, 2021Publication date: February 29, 2024Inventors: Tejas Garge, Rohan Kulkami, Vidyesh Bobade, Siddharth Sane, Vivek Mehta
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Patent number: 11120811Abstract: A Bluetooth component (e.g., a Bluetooth chip) and a digital signal processing (DSP) component (e.g., an audio DSP) of a device may directly handle link condition sensing (e.g., link quality monitoring) and audio bitrate determination. The Bluetooth component may perform link condition sensing (e.g., link quality monitoring) and the Bluetooth component and/or the DSP component may perform link condition processing and audio bitrate determination. Encoding scheme (e.g., audio bitrate) determination and modification may be performed independently by the Bluetooth component and DSP component, such that encoding schemes may be adapted to link conditions while other hardware (e.g., connected to the DSP) is operating in a low power or sleep state. In some cases, the Bluetooth component may sense link conditions and transmit bitrate information directly to audio encoding blocks of the DSP component.Type: GrantFiled: August 29, 2018Date of Patent: September 14, 2021Assignee: QUALCOMM INCORPORATEDInventors: Alexy Joseph, Srinivas Krovvidi, Siddartha Shaik, Ayan Ghosh, Sridhar Nomula, Vivek Mehta, Anssi Haverinen, Ravi Alamanda, Aniketkumar Lata
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Publication number: 20200075032Abstract: A Bluetooth component (e.g., a Bluetooth chip) and a digital signal processing (DSP) component (e.g., an audio DSP) of a device may directly handle link condition sensing (e.g., link quality monitoring) and audio bitrate determination. The Bluetooth component may perform link condition sensing (e.g., link quality monitoring) and the Bluetooth component and/or the DSP component may perform link condition processing and audio bitrate determination. Encoding scheme (e.g., audio bitrate) determination and modification may be performed independently by the Bluetooth component and DSP component, such that encoding schemes may be adapted to link conditions while other hardware (e.g., connected to the DSP) is operating in a low power or sleep state. In some cases, the Bluetooth component may sense link conditions and transmit bitrate information directly to audio encoding blocks of the DSP component.Type: ApplicationFiled: August 29, 2018Publication date: March 5, 2020Inventors: Alexy Joseph, Srinivas Krovvidi, Siddartha Shaik, Ayan Ghosh, Sridhar Nomula, Vivek Mehta, Anssi Haverinen, Ravi Alamanda, Aniketkumar Lata
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Patent number: 10509659Abstract: A system tasked with processing inputs and generating outputs, such as a transaction processor, might have many users. Updates to a particular user's use case can require an update to the code of the system. Examples of this disclosure provide a mechanism by which configuration can be employed to update output logic rather than code, which can facilitate updating and roll-out.Type: GrantFiled: September 28, 2016Date of Patent: December 17, 2019Assignee: Amazon Technologies, Inc.Inventors: Douglas Dance, Mark Hjelm, Yu Liu, Vivek Mehta
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Patent number: 8731751Abstract: A hybrid controller for controlling a hybrid vehicle is set forth. The hybrid vehicle has an engine, an electric motor and an engine controller determining a crankshaft torque. The hybrid controller includes an optimization module determining an electric motor torque, determining an engine torque and communicating the engine torque from the hybrid controller to the engine controller. The hybrid controller also includes a motor control module controlling the electric motor based on the electric motor torque.Type: GrantFiled: January 19, 2009Date of Patent: May 20, 2014Inventors: Robert C. Simon, Jr., Christopher E. Whitney, William R. Cawthorne, John L. Lahti, Douglas J. Babcock, Vivek Mehta, Anthony H. Heap, Todd R. Shupe, Cheryl A. Williams, Leonard G. Wozniak, Ning Jin, Birendra P. Bhattarai, James L. Worthing
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Patent number: 8437938Abstract: An axle torque control system includes an axle torque request module that receives an axle torque request and that selectively outputs the axle torque request. An axle torque conversion module receives the axle torque request and converts the axle torque request to an engine torque request. A rate limit module receives the engine torque request and a pedal engine torque request and selectively adjusts the engine torque request based on the pedal engine torque request.Type: GrantFiled: March 18, 2008Date of Patent: May 7, 2013Inventors: Christopher E. Whitney, Vivek Mehta, Barbara A. Shuler, Patrick J. O'Leary, Jun Lu
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Patent number: 8255139Abstract: An engine control system comprises a pedal torque determination module, a driver interpretation module, and an actuation module. The pedal torque determination module determines a zero pedal torque based on a desired engine torque at a zero accelerator pedal position and a minimum torque limit for an engine system. The driver interpretation module determines a driver pedal torque based on the zero pedal torque and an accelerator pedal position. The actuation module controls at least one of a throttle area, spark timing, and a fuel command based on the driver pedal torque.Type: GrantFiled: April 29, 2009Date of Patent: August 28, 2012Inventors: Christopher E. Whitney, Klaus Pochner, Todd R. Shupe, Vivek Mehta, Ning Jin, Ronald W. Van Diepen, Robert C. Simon, Jr., Etsuko Muraji Stewart, Jun Lu, Enrico Tropschug, Jorg Bernards, Helmut Oswald
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Patent number: 8181627Abstract: An engine system includes a throttle actuator module and a torque control module. The throttle actuator module controls a throttle actuator based on a desired throttle area. The torque control module determines an actuator torque. The torque control module determines a rate limited torque, a maximum torque, and a minimum torque based on the actuator torque and a predetermined rate of change. The torque control module determines the desired throttle area based on the actuator torque when the rate limited torque is greater than the maximum torque. The torque control module determines the desired throttle area based on the actuator torque when the rate limited torque is less than the minimum torque.Type: GrantFiled: February 9, 2009Date of Patent: May 22, 2012Inventors: Kevin T. Sharples, Mark H. Costin, Timothy J. Hartrey, Christopher E. Whitney, Bahram Younessi, Weixin Yan, Jeffrey M. Kaiser, Richard B. Jess, Joseph M. Stempnik, John A. Jacobs, Jinchun Peng, Leonard G. Wozniak, Vivek Mehta, Bruce A. Rogers
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Patent number: 8116954Abstract: An engine control module comprises a torque control module, an engine speed (RPM) control module, and an actuator module. The torque control module determines a first desired torque based on a requested torque. The RPM control module selectively determines a second desired torque based on a desired RPM. The torque control module determines the first desired torque further based on the second desired torque when the engine control module is transitioning from an RPM control mode to a torque control mode. The RPM control module determines the second desired torque further based on the first desired torque when the engine control module is transitioning from the torque control mode to the RPM control mode. The actuator module controls an actuator of an engine based on the first and second desired torques.Type: GrantFiled: January 25, 2008Date of Patent: February 14, 2012Inventors: Michael Livshiz, Scott J. Chynoweth, Todd R. Shupe, Christopher E. Whitney, Robert C. Simon, Jr., Vivek Mehta, Ning Jin
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Patent number: 8027780Abstract: A method and control module for controlling an engine includes a requested torque module that generates a requested torque and a maximum toque capacity module that determines a maximum torque capacity corresponding to a maximum torque capacity of the engine. A launch trim torque threshold determination module determines a launch trim torque threshold. A comparison module that compares the requested torque and the launch trim torque threshold. An output module that applies a fast rate limit to the requested torque up to the launch trim threshold when the requested torque is less than the launch trim torque threshold and a shower rate limited torque request when the requested torque is greater than the launch trim torque threshold.Type: GrantFiled: May 1, 2009Date of Patent: September 27, 2011Inventors: Christopher E. Whitney, Todd R. Shupe, Vivek Mehta, Kristian Keary, Richard B. Jess
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Publication number: 20100280738Abstract: A method and control module for controlling an engine includes a requested torque module that generates a requested torque and a maximum toque capacity module that determines a maximum torque capacity corresponding to a maximum torque capacity of the engine. A launch trim torque threshold determination module determines a launch trim torque threshold. A comparison module that compares the requested torque and the launch trim torque threshold. An output module that applies a fast rate limit to the requested torque up to the launch trim threshold when the requested torque is less than the launch trim torque threshold and a shower rate limited torque request when the requested torque is greater than the launch trim torque threshold.Type: ApplicationFiled: May 1, 2009Publication date: November 4, 2010Applicant: GM GLOBAL TECHNOLOGY OEPRATIONS, INC.Inventors: Christopher E. WHITNEY, Todd R. SHUPE, Vivek MEHTA, Kristian KEARY, Richard B. JESS
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Publication number: 20100075803Abstract: An engine system includes a throttle actuator module and a torque control module. The throttle actuator module controls a throttle actuator based on a desired throttle area. The torque control module determines an actuator torque. The torque control module determines a rate limited torque, a maximum torque, and a minimum torque based on the actuator torque and a predetermined rate of change. The torque control module determines the desired throttle area based on the actuator torque when the rate limited torque is greater than the maximum torque. The torque control module determines the desired throttle area based on the actuator torque when the rate limited torque is less than the minimum torque.Type: ApplicationFiled: February 9, 2009Publication date: March 25, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Kevin T. Sharples, Mark H. Costin, Timothy J. Hartrey, Christopher E. Whitney, Bahram Younessi, Weixin Yan, Jeffrey M. Kaiser, Richard B. Jess, Joseph M. Stempnik, John A. Jacobs, Jinchun Peng, Leonard G. Wozniak, Vivek Mehta, Bruce A. Rogers
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Publication number: 20090276137Abstract: An engine control system comprises a pedal torque determination module, a driver interpretation module, and an actuation module. The pedal torque determination module determines a zero pedal torque based on a desired engine torque at a zero accelerator pedal position and a minimum torque limit for an engine system. The driver interpretation module determines a driver pedal torque based on the zero pedal torque and an accelerator pedal position. The actuation module controls at least one of a throttle area, spark timing, and a fuel command based on the driver pedal torque.Type: ApplicationFiled: April 29, 2009Publication date: November 5, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Christopher E. WHITNEY, Klaus POCHNER, Todd R. SHUPE, Vivek MEHTA, Ning JIN, Ronald W. VAN DIEPEN, Robert C. SIMON, JR., Etsuko Muraji STEWART, Jun LU, Enrico TROPSCHUG, Jorg BERNARDS, Helmut OSWALD
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Patent number: 7593806Abstract: A control system for a vehicle includes a first counter that indicates a first count of a number of cylinders of an engine of the vehicle that are fueled. A second counter indicates a second count of the number of cylinders that are fueled. A control module determines a secure count based on the first count and the second count. The control module adjusts torque output of the engine based on the secure count.Type: GrantFiled: July 29, 2008Date of Patent: September 22, 2009Inventors: Christopher E. Whitney, Louis A. Avallone, Timothy J. Hartrey, Mark D. Carr, Vivek Mehta, Bahram Younessi
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Publication number: 20090204280Abstract: A hybrid controller for controlling a hybrid vehicle is set forth. The hybrid vehicle has an engine, an electric motor and an engine controller determining a crankshaft torque. The hybrid controller includes an optimization module determining an electric motor torque, determining an engine torque and communicating the engine torque from the hybrid controller to the engine controller. The hybrid controller also includes a motor control module controlling the electric motor based on the electric motor torque.Type: ApplicationFiled: January 19, 2009Publication date: August 13, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Robert C. Simon, JR., Christopher E. Whitney, William R. Cawthorne, John L. Lahti, Douglas J. Babcock, Vivek Mehta, Anthony H. Heap, Todd R. Shupe, Cheryl A. Williams, Leonard G. Wozniak, Ning Jin, Birendra P. Bhattarai, James L. Worthing
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Publication number: 20090182478Abstract: An axle torque control system includes an axle torque request module that receives an axle torque request and that selectively outputs the axle torque request. An axle torque conversion module receives the axle torque request and converts the axle torque request to an engine torque request. A rate limit module receives the engine torque request and a pedal engine torque request and selectively adjusts the engine torque request based on the pedal engine torque request.Type: ApplicationFiled: March 18, 2008Publication date: July 16, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Christopher E. Whitney, Vivek Mehta, Barbara A. Shuler, Patrick J. O'leary, Jun Lu
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Publication number: 20090118985Abstract: A control system for a vehicle includes a first counter that indicates a first count of a number of cylinders of an engine of the vehicle that are fueled. A second counter indicates a second count of the number of cylinders that are fueled. A control module determines a secure count based on the first count and the second count. The control module adjusts torque output of the engine based on the secure count.Type: ApplicationFiled: July 29, 2008Publication date: May 7, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Christopher E. Whitney, Louis A. Avallone, Timothy J. Hartrey, Mark D. Carr, Vivek Mehta, Bahram Younessi
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Patent number: 7509845Abstract: A system for detecting contamination of an air filter for an internal combustion engine includes an air pressure sensor disposed downstream of the air filter, an air flow sensor disposed in an air intake system of the engine, and a control module in communication with the air pressure sensor and the air flow sensor. The control module is configured to estimate an atmospheric pressure based on a signal received from the air pressure sensor. The control module is further configured to determine a contamination level of the air filter based on an air flow rate provided by the air flow sensor and a pressure drop across the air filter based on a pressure difference between the estimated atmospheric pressure and a second pressure measurement from the air pressure sensor that corresponds to the provided air flow rate.Type: GrantFiled: February 12, 2007Date of Patent: March 31, 2009Assignee: GM Global Technology Operations, Inc.Inventors: Layne K. Wiggins, Vivek Mehta
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Publication number: 20090018733Abstract: An engine control module comprises a torque control module, an engine speed (RPM) control module, and an actuator module. The torque control module determines a first desired torque based on a requested torque. The RPM control module selectively determines a second desired torque based on a desired RPM. The torque control module determines the first desired torque further based on the second desired torque when the engine control module is transitioning from an RPM control mode to a torque control mode. The RPM control module determines the second desired torque further based on the first desired torque when the engine control module is transitioning from the torque control mode to the RPM control mode. The actuator module controls an actuator of an engine based on the first and second desired torques.Type: ApplicationFiled: January 25, 2008Publication date: January 15, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Michael Livshiz, Scott J. Chynoweth, Todd R. Shupe, Christopher E. Whitney, Robert C. Simon, JR., Vivek Mehta, Ning Jin
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Publication number: 20080190177Abstract: A system for detecting contamination of an air filter for an internal combustion engine includes an air pressure sensor disposed downstream of the air filter, an air flow sensor disposed in an air intake system of the engine, and a control module in communication with the air pressure sensor and the air flow sensor. The control module is configured to estimate an atmospheric pressure based on a signal received from the air pressure sensor. The control module is further configured to determine a contamination level of the air filter based on an air flow rate provided by the air flow sensor and a pressure drop across the air filter based on a pressure difference between the estimated atmospheric pressure and a second pressure measurement from the air pressure sensor that corresponds to the provided air flow rate.Type: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Inventors: Layne K. Wiggins, Vivek Mehta