Patents by Inventor David B. Antanaitis
David B. Antanaitis 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: 20240123959Abstract: A brake bleeding system includes: a brake apply module of a wheel of a vehicle, the brake apply module including: a brake fluid reservoir; a caliper; and a pump configured to pump brake fluid from the brake fluid reservoir to the caliper; and a bleed screw; and a brake bleed module configured to, in response to user input indicative of a request to bleed air from the brake apply module, operate the pump and bleed air from the brake apply module.Type: ApplicationFiled: October 18, 2022Publication date: April 18, 2024Inventors: Jordan SYROWIK, David B. ANTANAITIS, Brian W. QUINN
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Patent number: 11858484Abstract: A braking current management system for use in a towed trailer. The braking current management system comprises a battery health module configured to determine an amount of available battery current associated with the towed trailer and to generate therefrom an available current signal. The system further includes a trailer brake control module configured to receive the available current signal and, in response to the available current signal, to control an amount of current applied to a trailer brake associated with the towed trailer.Type: GrantFiled: October 19, 2020Date of Patent: January 2, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Todd J. Brinkman, David B. Antanaitis, Stacey M. Marmara
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Patent number: 11453261Abstract: In accordance with an exemplary embodiment, an autonomous system is provided that includes: a tow vehicle, a trailer, and a control system. The tow vehicle has a vehicle battery. The trailer is coupled to the tow vehicle, and has a trailer battery. The control system includes a sensor and a processor. The sensor is configured to at least facilitate measuring a state of charge of the trailer battery. The processor is coupled to the sensor, and is configured to at least facilitate selectively providing current from the tow vehicle to the trailer based on the state of charge of the trailer battery.Type: GrantFiled: November 30, 2020Date of Patent: September 27, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Stacey M. Marmara, Todd J. Brinkman, David B. Antanaitis, Steven Reini, Douglas J. Spry, Brandon E. Pieniozek
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Publication number: 20220169085Abstract: In accordance with an exemplary embodiment, an autonomous system is provided that includes: a tow vehicle, a trailer, and a control system. The tow vehicle has a vehicle battery. The trailer is coupled to the tow vehicle, and has a trailer battery. The control system includes a sensor and a processor. The sensor is configured to at least facilitate measuring a state of charge of the trailer battery. The processor is coupled to the sensor, and is configured to at least facilitate selectively providing current from the tow vehicle to the trailer based on the state of charge of the trailer battery.Type: ApplicationFiled: November 30, 2020Publication date: June 2, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Stacey M. Marmara, Todd J. Brinkman, David B. Antanaitis, Steven Reini, Douglas J. Spry, Brandon E. Pieniozek
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Publication number: 20220118961Abstract: A braking current management system for use in a towed trailer. The braking current management system comprises a battery health module configured to determine an amount of available battery current associated with the towed trailer and to generate therefrom an available current signal. The system further includes a trailer brake control module configured to receive the available current signal and, in response to the available current signal, to control an amount of current applied to a trailer brake associated with the towed trailer.Type: ApplicationFiled: October 19, 2020Publication date: April 21, 2022Inventors: Todd J. BRINKMAN, David B. ANTANAITIS, Stacey M. MARMARA
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Patent number: 11047441Abstract: An exemplary method for determining a remaining life expectancy of a brake component includes the steps of providing vehicle parameters that identify operating conditions of a vehicle, using the vehicle parameters to determine work done by a brake of the vehicle as brake work, using the brake work to determine brake rotor temperature, using the brake rotor temperature to determine a fatigue damage of the brake component, accumulating the fatigue damage to determine a cumulative fatigue damage of the brake component, and comparing the cumulative fatigue damage to a damage limit to provide an estimation of the remaining life expectancy of the brake component.Type: GrantFiled: September 28, 2018Date of Patent: June 29, 2021Assignee: GM Global Technology Operations LLCInventors: David B. Antanaitis, Mark T. Riefe
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Publication number: 20200102993Abstract: An exemplary method for determining a remaining life expectancy of a brake component includes the steps of providing vehicle parameters that identify operating conditions of a vehicle, using the vehicle parameters to determine work done by a brake of the vehicle as brake work, using the brake work to determine brake rotor temperature, using the brake rotor temperature to determine a fatigue damage of the brake component, accumulating the fatigue damage to determine a cumulative fatigue damage of the brake component, and comparing the cumulative fatigue damage to a damage limit to provide an estimation of the remaining life expectancy of the brake component.Type: ApplicationFiled: September 28, 2018Publication date: April 2, 2020Inventors: David B. Antanaitis, Mark T. Riefe
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Patent number: 10562509Abstract: A brake temperature monitoring system configured to monitor at least one of a rotor and hydraulic fluid of a brake mechanism for a vehicle. The system including a controller including a processor and an electronic storage medium, a vehicle velocity sensor, an ambient temperature sensor, and a pre-programmed module. The vehicle velocity sensor is configured to output a velocity signal to the processor. The ambient temperature sensor is configured to output an ambient temperature signal to the processor. The model is pre-programmed into the electronic storage medium, and is adapted to estimate the temperature of at least one of the rotor and the hydraulic fluid. The estimation is based on an ambient air temperature, and a pre-established relationship between a conductive heat transfer factor and a convective heat transfer factor. The convective heat transfer factor is a function of vehicle velocity.Type: GrantFiled: July 6, 2017Date of Patent: February 18, 2020Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: David B. Antanaitis, Mark T. Riefe, Chih-hung Yen
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Patent number: 10495169Abstract: Technical solutions are described to for determining thickness of a vehicle brake rotor. An example method includes providing vehicle parameters that identify operating conditions of a vehicle, and using the vehicle parameters to determine work done by a brake of the vehicle as brake-work. Further, the method includes using the brake work to determine brake rotor temperature, and using the brake rotor temperature to determine brake rotor wear. The method further includes accumulating the brake rotor wear to provide an estimation of the thickness of the vehicle brake rotor.Type: GrantFiled: July 17, 2017Date of Patent: December 3, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: David B. Antanaitis, Mark T. Riefe, Matthew A. Robere
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Patent number: 10486674Abstract: A system for determining thickness of a brake pad includes a controller configured to provide a total braking energy of a vehicle with a regenerative energy braking system, and a rotor braking system that includes a plurality of brake pads. The system controller determines the work done by the brake pads as a combination of front brake pad work and rear brake pad work, then accumulates the brake pad wear to provide an estimation of the brake pad thickness using the front brake pad work and the rear brake pad work.Type: GrantFiled: September 1, 2017Date of Patent: November 26, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Matthew A. Robere, Mark T. Riefe, David B. Antanaitis
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Publication number: 20190152460Abstract: An electromechanical brake system includes a caliper, an electric motor mounted to the caliper, a gear element mechanically connected to the electric motor, an actuator supported by the caliper, the actuator including an actuation member, and a controller operatively connected to the actuator. The controller is operable to selectively engage the actuation member with the gear element to positionally lock the first caliper member relative to the second caliper member.Type: ApplicationFiled: November 22, 2017Publication date: May 23, 2019Inventors: David B. Antanaitis, Mark T. Riefe, Kevin D. Connor
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Publication number: 20190107163Abstract: Technical solutions are described for determining thickness of a vehicle brake pad. An example method for estimating brake pad wear on a vehicle includes computing a corner torque for a brake based on corner brake pressure applied to the brake. The method also includes computing a corner power for the brake based on the corner torque. The method also includes computing a rotor temperature of a rotor of the brake based on the corner power. The method also includes determining a brake pad wear rate per unit of power based on the rotor temperature and the corner power. The method also includes computing a brake pad wear based on the brake pad wear rate and the corner power.Type: ApplicationFiled: October 10, 2017Publication date: April 11, 2019Inventors: Nojan Medinei, David B. Antanaitis, Steven J. Weber
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Publication number: 20190071062Abstract: A system for determining thickness of a brake pad includes a controller configured to provide a total braking energy of a vehicle with a regenerative energy braking system, and a rotor braking system that includes a plurality of brake pads. The system controller determines the work done by the brake pads as a combination of front brake pad work and rear brake pad work, then accumulates the brake pad wear to provide an estimation of the brake pad thickness using the front brake pad work and the rear brake pad work.Type: ApplicationFiled: September 1, 2017Publication date: March 7, 2019Inventors: Matthew A. Robere, Mark T. Riefe, David B. Antanaitis
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Publication number: 20190017561Abstract: Technical solutions are described to for determining thickness of a vehicle brake rotor. An example method includes providing vehicle parameters that identify operating conditions of a vehicle, and using the vehicle parameters to determine work done by a brake of the vehicle as brake-work. Further, the method includes using the brake work to determine brake rotor temperature, and using the brake rotor temperature to determine brake rotor wear. The method further includes accumulating the brake rotor wear to provide an estimation of the thickness of the vehicle brake rotor.Type: ApplicationFiled: July 17, 2017Publication date: January 17, 2019Inventors: David B. Antanaitis, Mark T. Riefe, Matthew A. Robere
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Publication number: 20190009769Abstract: A brake temperature monitoring system configured to monitor at least one of a rotor and hydraulic fluid of a brake mechanism for a vehicle. The system including a controller including a processor and an electronic storage medium, a vehicle velocity sensor, an ambient temperature sensor, and a pre-programmed module. The vehicle velocity sensor is configured to output a velocity signal to the processor. The ambient temperature sensor is configured to output an ambient temperature signal to the processor. The model is pre-programmed into the electronic storage medium, and is adapted to estimate the temperature of at least one of the rotor and the hydraulic fluid. The estimation is based on an ambient air temperature, and a pre-established relationship between a conductive heat transfer factor and a convective heat transfer factor. The convective heat transfer factor is a function of vehicle velocity.Type: ApplicationFiled: July 6, 2017Publication date: January 10, 2019Inventors: David B. Antanaitis, Mark T. Riefe, Chih-hung Yen
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Patent number: 9889835Abstract: A vehicle includes a brake system. The brake system includes a hydraulic brake line having a line pressure. The vehicle additionally includes a vacuum reservoir. The vacuum reservoir is selectively fluidly coupled to the hydraulic brake line. The vacuum reservoir is configured to, when fluidly coupled to the hydraulic brake line, reduce the line pressure during a drive cycle.Type: GrantFiled: August 5, 2016Date of Patent: February 13, 2018Assignee: GM Global Technology Operations LLCInventors: David B. Antanaitis, Kevin D. Connor, Douglas N. Reed
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Publication number: 20180037206Abstract: A vehicle includes a brake system. The brake system includes a hydraulic brake line having a line pressure. The vehicle additionally includes a vacuum reservoir. The vacuum reservoir is selectively fluidly coupled to the hydraulic brake line. The vacuum reservoir is configured to, when fluidly coupled to the hydraulic brake line, reduce the line pressure during a drive cycle.Type: ApplicationFiled: August 5, 2016Publication date: February 8, 2018Inventors: David B. Antanaitis, Kevin D. Connor, Douglas N. Reed
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Publication number: 20170058982Abstract: A number of variations may include a product that may include at least one working friction surface that may include at least two layers that may include a compound layer and a nitrogen diffusion layer wherein the compound layer may have a porosity ranging from about 19% to about 50%.Type: ApplicationFiled: August 26, 2015Publication date: March 2, 2017Inventors: MICHAEL L. HOLLY, MARK T. RIEFE, RICHARD A. KAATZ, CARA L. LEARMAN, DAVID B. ANTANAITIS, LISA G. DEVOE
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Patent number: 9581211Abstract: One variation includes a friction material and method of manufacture thereof wherein the friction material includes a transfer layer on a ferritically nitrocarburized component, wherein the transfer layer may be fabricated from glass, rubber, carbon, aramid fiber, filler material, abrasive, or a high-temperature resin.Type: GrantFiled: December 6, 2013Date of Patent: February 28, 2017Assignee: GM Global Technology Operations LLCInventors: Michael L. Holly, David B. Antanaitis, Richard A. Kaatz, Mark T. Riefe, Cara L. Learman
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Patent number: 9500242Abstract: An exemplary embodiment includes an automotive brake component, such as a brake drum or a brake rotor, and an inlay coupled to the automotive brake component. The inlay constituting at least a portion of a braking surface that is acted upon during a braking event. The inlay damping vibrations in the automotive brake component when the component is vibrated.Type: GrantFiled: December 5, 2008Date of Patent: November 22, 2016Assignee: GM Global Technology Operations LLCInventors: Patrick J. Monsere, Mark T. Riefe, David B. Antanaitis, Brent D. Lowe, Mohan Sundar