Patents by Inventor Jason B. Siegel
Jason B. Siegel 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: 11660980Abstract: There is disclosed an electrical device and a method in which a battery is warmed up when operating from a sub-zero temperature. The electrical device may include a battery; an electrical storage element; and a battery management system including a controller in electrical communication with the battery and the electrical storage element. The controller can be configured to execute a program stored in the controller to shuttle energy between the battery and the electrical storage element until a power capability threshold of the battery has been reached, Shuttling the energy raises a temperature of the battery to meet power demand.Type: GrantFiled: December 4, 2015Date of Patent: May 30, 2023Assignees: THE REGENTS OF THE UNIVERSITY OF MICHIGAN, GOVERNMENT OF THE UNITED STATES, AS REPRESENTED BY THE SECRETARY OF THE ARMYInventors: Anna G. Stefanopoulou, Shankar Narayan Mohan, Youngki Kim, Jason B. Siegel, Yi Ding, Wesley G. Zanardelli, Sonya Zanardelli
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Patent number: 11623526Abstract: There is disclosed an electrical device including a battery, and a battery management system. The battery management system includes a controller in electrical communication with a pressure sensor to monitor the state of health of the battery. The controller applies a method for determining the state of health that uses a non-electrical (mechanical) signal of force measurements combined with incremental capacity analysis to estimate the capacity fading and other health indicators of the battery with better precision than existing methods. The pressure sensor may provide the force measurement signal to the controller, which may determine which incremental capacity curve based on force to use for the particular battery. The controller then executes a program utilizing the data from the pressure sensor and the stored incremental capacity curves based on force to estimate the capacity fading and signal a user with the state of health percentage.Type: GrantFiled: November 18, 2016Date of Patent: April 11, 2023Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Anna G. Stefanopoulou, Nassim Abdul Samad, Youngki Kim, Jason B. Siegel
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Patent number: 11355824Abstract: An electrical device comprises a battery cell; a pressure sensor for measuring swelling forces of the battery cell, optionally with voltage, temperature and current sensors, and a battery management system including a controller. The controller executes a program to: (i) determine a reference swelling force corresponding to a reference electrical signal received from the pressure sensor at an earlier reference time, (ii) determine a second swelling force corresponding to a second electrical signal received from the pressure sensor at a later second time, and (iii) determine whether a risk of internal short circuit of the battery cell exists by comparing a reference level of the reference electrical signal and a signal representative of the second electrical signal. When the signal representative of the second electrical signal exceeds the reference level of the reference electrical signal by a threshold amount, a risk of internal short circuit of the cell exists.Type: GrantFiled: May 13, 2019Date of Patent: June 7, 2022Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Anna G. Stefanopoulou, Jason B. Siegel, Sravan Pannala, Gregory B. Less, Ting Cai, Mingxuan Zhang
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Publication number: 20220123559Abstract: Disclosed is a system and method for detecting, assessing, and displaying a battery fault, such as an internal short circuit in a battery cell. The system includes a battery; a sensor for outputting a sensor signal correlating to a measurement of a chemical, electrical, or physical property of the battery; and a controller in electrical communication with the sensor and a display device. The controller is configured to execute a program stored in the controller to: (i) detect and assess a fault in the battery based on the sensor signal, and (ii) transmit a display signal to the display device such that the display device produces an image indicative of the presence or the absence of a fault in the battery. The display device can be a virtual reality headset to be used for first responders and other beneficiaries for an electric vehicle fire.Type: ApplicationFiled: October 18, 2021Publication date: April 21, 2022Inventors: Anna G. Stefanopoulou, Jason B. Siegel, Ting Cai
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Publication number: 20210359347Abstract: The present disclosure provides an electrical device including a battery cell, a voltage sensor operatively coupled to the battery cell in order to measure a voltage level of the battery cell, a current sensor operatively coupled to the battery cell in order to measure an amount of current drawn from or supplied to the battery cell, and a battery management system (BMS). The battery management system includes a controller In communication with the voltage sensor and the current sensor. The controller is configured to execute a program stored in the BMS to calculate a state of health of the individual battery electrodes comprising a battery cell using a first differential voltage point, a second differential voltage point, and a characteristic curve of a fresh battery electrode of a fresh battery cell, wherein the battery cell includes a second battery electrode not exhibiting distinct phase transitions during a charge-discharge cycle.Type: ApplicationFiled: August 6, 2019Publication date: November 18, 2021Inventors: Anna G. Stefanopoulou, Suhak Lee, Jason B. Siegel, Jang-Woo Lee, Tae-Kyung Lee
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Publication number: 20210197691Abstract: There is disclosed an electrical device including a battery, and a battery management system. The battery management system includes a controller in electrical communication with a pressure sensor to monitor the state of health of the battery. The controller applies a method for determining the state of health that uses a non-electrical (mechanical) signal of force measurements combined with incremental capacity analysis to estimate the capacity fading and other health indicators of the battery with better precision than existing methods. The pressure sensor may provide the force measurement signal to the controller, which may determine which incremental capacity curve based on force to use for the particular battery. The controller then executes a program utilizing the data from the pressure sensor and the stored incremental capacity curves based on force to estimate the capacity fading and signal a user with the state of health percentage.Type: ApplicationFiled: November 18, 2016Publication date: July 1, 2021Applicant: The Regents of the University of MichiganInventors: Anna G. STEFANOPOULOU, Nassim ABDUL SAMAD, Youngki KIM, Jason B. SIEGEL
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Publication number: 20200313152Abstract: An electrical device comprises a battery cell; a pressure sensor for measuring swelling forces of the battery cell, optionally with voltage, temperature and current sensors, and a battery management system including a controller. The controller executes a program to: (i) determine a reference swelling force corresponding to a reference electrical signal received from the pressure sensor at an earlier reference time, (ii) determine a second swelling force corresponding to a second electrical signal received from the pressure sensor at a later second time, and (iii) determine whether a risk of internal short circuit of the battery cell exists by comparing a reference level of the reference electrical signal and a signal representative of the second electrical signal. When the signal representative of the second electrical signal exceeds the reference level of the reference electrical signal by a threshold amount, a risk of internal short circuit of the cell exists.Type: ApplicationFiled: May 13, 2019Publication date: October 1, 2020Inventors: Anna G. Stefanopoulou, Jason B. Siegel, Sravan Pannala, Gregory B. Less, Ting Cai, Mingxuan Zhang
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Patent number: 10074996Abstract: There is disclosed an electrical device including a battery pack, a pressure sensor for measuring a volume change of the battery pack, a voltage sensor in electrical communication with a positive terminal and a negative terminal of the battery pack, a temperature sensor positioned in a cell of the battery pack, and a battery management system. The battery management system includes a controller in electrical communication with the pressure sensor, the voltage sensor, and the temperature sensor, the controller being configured to execute a program stored in the controller to determine a state of charge percentage of the battery pack based on a pressure reading from the pressure sensor, a terminal voltage reading from the voltage sensor, and a temperature reading from the temperature sensor.Type: GrantFiled: August 28, 2015Date of Patent: September 11, 2018Assignee: The Regents of the University of MichiganInventors: Anna G. Stefanopoulou, Shankar Narayan Mohan, Youngki Kim, Jason B. Siegel
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Publication number: 20160185251Abstract: There is disclosed an electrical device and a method in which a battery is warmed up when operating from a sub-zero temperature. The electrical device may include a battery; an electrical storage element; and a battery management system including a controller in electrical communication with the battery and the electrical storage element. The controller can be configured to execute a program stored in the controller to shuttle energy between the battery and the electrical storage element until a power capability threshold of the battery has been reached, Shuttling the energy raises a temperature of the battery to meet power demand.Type: ApplicationFiled: December 4, 2015Publication date: June 30, 2016Inventors: Anna G. Stefanopoulou, Shankar Narayan Mohan, Youngki Kim, Jason B. Siegel, Yi Ding, Wesley G. Zanardelli, Sonya Zanardelli
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Publication number: 20160064972Abstract: There is disclosed an electrical device including a battery pack, a pressure sensor for measuring a volume change of the battery pack, a voltage sensor in electrical communication with a positive terminal and a negative terminal of the battery pack, a temperature sensor positioned in a cell of the battery pack, and a battery management system. The battery management system includes a controller in electrical communication with the pressure sensor, the voltage sensor, and the temperature sensor, the controller being configured to execute a program stored in the controller to determine a state of charge percentage of the battery pack based on a pressure reading from the pressure sensor, a terminal voltage reading from the voltage sensor, and a temperature reading from the temperature sensor.Type: ApplicationFiled: August 28, 2015Publication date: March 3, 2016Inventors: Anna G. Stefanopoulou, Shankar Narayan Mohan, Youngki Kim, Jason B. Siegel