Patents by Inventor Daniel S. Maitlen
Daniel S. Maitlen 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: 11720106Abstract: Examples described herein provide a computer-implemented method that includes defining, by a processing device, a plurality of parameters so that any orthogonal intersection can be described. The method further includes building, by the processing device, an orthogonal parameterized model that can represent any orthogonal intersection based at least in part on the plurality of parameters that can describe any intersection of interest. The method further includes expanding, by the processing device, the orthogonal parameterized model to generate a fully parameterized intersection model that accounts for intersection complexities. The method further includes building, by the processing device, a low-fidelity analytical that computes various metrics based on the fully parameterized intersection model.Type: GrantFiled: January 7, 2020Date of Patent: August 8, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jeremy P. Gray, Grant A. Soremekun, Daniel S. Maitlen
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Publication number: 20210208588Abstract: Examples described herein provide a computer-implemented method that includes defining, by a processing device, a plurality of parameters so that any orthogonal intersection can be described. The method further includes building, by the processing device, an orthogonal parameterized model that can represent any orthogonal intersection based at least in part on the plurality of parameters that can describe any intersection of interest. The method further includes expanding, by the processing device, the orthogonal parameterized model to generate a fully parameterized intersection model that accounts for intersection complexities. The method further includes building, by the processing device, a low-fidelity analytical that computes various metrics based on the fully parameterized intersection model.Type: ApplicationFiled: January 7, 2020Publication date: July 8, 2021Inventors: Jeremy P. Gray, Grant A. Soremekun, Daniel S. Maitlen
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Patent number: 10846952Abstract: A system and method for monitoring wheel hub temperatures and odometry in trailer axles. The system includes a spindle (118), an inner bearing (114), an outer bearing (116), a wheel hub (106) engaging the spindle (118) via the inner and outer bearings (114, 116), a thermocouple (108) positioned within the spindle (118), and an electronic control unit (112). The electronic control unit (112) is electrically coupled to the thermocouple (108) and configured to receive from the thermocouple (108), a temperature signal. The electronic control unit (112) is configured to determine, from the temperature signal, a temperature. The electronic control unit (112) is configured to compare the temperature to a predetermined threshold. The electronic control unit (112) is configured to, when the temperature exceeds the predetermined threshold, indicate a fault.Type: GrantFiled: October 26, 2016Date of Patent: November 24, 2020Assignee: ROBERT BOSCH GMBHInventors: Jeffrey M. Roder, Trevor P. Hunt, Daniel S. Maitlen, Travis D. Hunt
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Publication number: 20200041304Abstract: A method for producing high resolution virtual wheel speed sensor data includes simultaneously collecting wheel speed sensor (WSS) data from multiple wheel speed sensors each sensing rotation of one of multiple wheels of an automobile vehicle. A camera image is generated of a vehicle environment from at least one camera mounted in the automobile vehicle. An optical flow program is applied to discretize the camera image in pixels. Multiple distance intervals are overlayed onto the discretized camera image each representing a vehicle distance traveled defining a resolution of each of the multiple wheel speed sensors. A probability distribution function is created predicting a distance traveled for a next WSS output.Type: ApplicationFiled: July 31, 2018Publication date: February 6, 2020Inventors: Carlos E. Arreaza, Amin Abdossalami, Norman J. Weigert, Daniel S. Maitlen, David M. Sidlosky
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Publication number: 20180330556Abstract: A system and method for monitoring wheel hub temperatures and odometry in trailer axles. The system includes a spindle (118), an inner bearing (114), an outer bearing (116), a wheel hub (106) engaging the spindle (118) via the inner and outer bearings (114, 116), a thermocouple (108) positioned within the spindle (118), and an electronic control unit (112). The electronic control unit (112) is electrically coupled to the thermocouple (108) and configured to receive from the thermocouple (108), a temperature signal. The electronic control unit (112) is configured to determine, from the temperature signal, a temperature. The electronic control unit (112) is configured to compare the temperature to a predetermined threshold. The electronic control unit (112) is configured to, when the temperature exceeds the predetermined threshold, indicate a fault.Type: ApplicationFiled: October 26, 2016Publication date: November 15, 2018Inventors: Jeffrey M. Roder, Trevor P. Hunt, Daniel S. Maitlen, Travis D. Hunt
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Patent number: 8412435Abstract: A system, method and computer program product is provided for detecting if a vehicle has spun. A normal force and a lateral force of each of a front and rear axle of a vehicle is estimated. A coefficient of friction representative of a surface is estimated. Lateral momenta of the front and rear axles based on the coefficient of friction and the normal and lateral forces is calculated. Whether a surplus momentum is present, is determined. If the surplus momentum is present, a yaw rate of the vehicle is integrated respect to time to obtain a vehicle rotation estimation.Type: GrantFiled: October 8, 2007Date of Patent: April 2, 2013Assignee: GM Global Technology Operations, LLCInventor: Daniel S. Maitlen
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Patent number: 8165769Abstract: A method of estimating a speed of a vehicle is provided. The vehicle has a wheel and the method comprises receiving a first wheel speed signal indicating a rotation rate of the wheel, determining a first calculated forward speed of the vehicle based on the first wheel speed signal, receiving a first steering signal, determining the first steering signal contains information indicating large steering activity, receiving a second wheel speed signal at a later time than the first wheel speed signal, and determining, in response to receiving the first steering signal, a second calculated forward speed of the vehicle that is based on the second wheel speed signal and the first calculated forward speed.Type: GrantFiled: March 2, 2009Date of Patent: April 24, 2012Assignee: GM Global Technology Operations LLCInventors: Hualin Tan, Daniel S. Maitlen
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Patent number: 7813890Abstract: A system, method and computer program product is provided for detecting if a vehicle is stopped. A wheel speed, transmission output speed, and a vehicle state, representative of a plurality of vehicle dynamic parameters, is determined. The vehicle is determined to be stopped if, after a predetermined period of time, the wheel speed and transmission output speed remain zero and the vehicle state remains stable.Type: GrantFiled: October 8, 2007Date of Patent: October 12, 2010Assignee: GM Global Technology Operations, Inc.Inventor: Daniel S. Maitlen
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Publication number: 20100222977Abstract: A method of estimating a speed of a vehicle is provided. The vehicle has a wheel and the method comprises receiving a first wheel speed signal indicating a rotation rate of the wheel, determining a first calculated forward speed of the vehicle based on the first wheel speed signal, receiving a first steering signal, determining the first steering signal contains information indicating large steering activity, receiving a second wheel speed signal at a later time than the first wheel speed signal, and determining, in response to receiving the first steering signal, a second calculated forward speed of the vehicle that is based on the second wheel speed signal and the first calculated forward speed.Type: ApplicationFiled: March 2, 2009Publication date: September 2, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: HUALIN TAN, DANIEL S. MAITLEN
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Publication number: 20090093991Abstract: A system, method and computer program product is provided for detecting if a vehicle has spun. A normal force and a lateral force of each of a front and rear axle of a vehicle is estimated. A coefficient of friction representative of a surface is estimated. Lateral momenta of the front and rear axles based on the coefficient of friction and the normal and lateral forces is calculated. Whether a surplus momentum is present, is determined. If the surplus momentum is present, a yaw rate of the vehicle is integrated respect to time to obtain a vehicle rotation estimation.Type: ApplicationFiled: October 8, 2007Publication date: April 9, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: DANIEL S. MAITLEN
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Publication number: 20090093993Abstract: A system, method and computer program product is provided for detecting if a vehicle is stopped. A wheel speed, transmission output speed, and a vehicle state, representative of a plurality of vehicle dynamic parameters, is determined. The vehicle is determined to be stopped if, after a predetermined period of time, the wheel speed and transmission output speed remain zero and the vehicle state remains stable.Type: ApplicationFiled: October 8, 2007Publication date: April 9, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: DANIEL S. MAITLEN