Patents by Inventor Brian Pevear
Brian Pevear 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: 20220371425Abstract: A battery system for an electric vehicle includes a first battery module with a first heater and a second battery module with a second heater. The battery system also includes a control system configured to selectively activate the first or the second heater to dissipate energy from the first or the second battery module.Type: ApplicationFiled: August 3, 2022Publication date: November 24, 2022Applicant: Proterra Operating Company, Inc.Inventors: Dustin GRACE, Brian PEVEAR
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Publication number: 20220348095Abstract: Vehicle depots or yards adapted to charge multiple electric vehicles include multiple charging electrodes to simultaneously direct power to multiple electric vehicles. The charging electrodes may direct power to the electric vehicles from an utility grid or from a secondary power source.Type: ApplicationFiled: April 26, 2022Publication date: November 3, 2022Applicant: Proterra Operating Company, Inc.Inventors: Dustin GRACE, Rajiv SINGHAL, Andre LALLJIE, Brian PEVEAR, Thomas BLAZAK, Seamus McGRATH, John GERBER, Roger INNES
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Patent number: 11440392Abstract: A battery system for an electric vehicle includes a first battery module with a first heater and a second battery module with a second heater. The battery system also includes a control system configured to selectively activate the first or the second heater to dissipate energy from the first or the second battery module.Type: GrantFiled: April 14, 2020Date of Patent: September 13, 2022Assignee: Proterra Operating Company, Inc.Inventors: Dustin Grace, Brian Pevear
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Patent number: 11351879Abstract: Vehicle depots or yards adapted to charge multiple electric vehicles include multiple charging electrodes to simultaneously direct power to multiple electric vehicles. The charging electrodes may direct power to the electric vehicles from an utility grid or from a secondary power source.Type: GrantFiled: October 5, 2018Date of Patent: June 7, 2022Assignee: Proterra Operating Company, Inc.Inventors: Dustin Grace, Rajiv Singhal, Andre Lalljie, Brian Pevear, Thomas Blazak, Seamus McGrath, John Gerber, Roger Innes
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Patent number: 10811869Abstract: A battery system may include a controller and multiple parallel connected battery strings, with each string including at least one battery, a passive overcurrent protection device and an active overcurrent protection device. The passive overcurrent protection device may be configured to disconnect the string from the battery system when an electrical current in the string exceeds a first threshold value, and the active overcurrent protection device may be configured to disconnect the string from the battery system upon activation by the controller. The controller may be configured to (a) activate a first active overcurrent protection device of a first string of the multiple strings at a first time, and (b) activate a second active overcurrent protection device of a second string of the multiple strings at a second time different from the first time.Type: GrantFiled: April 17, 2018Date of Patent: October 20, 2020Assignee: Proterra, Inc.Inventor: Brian Pevear
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Publication number: 20200238844Abstract: Vehicle depots or yards adapted to charge multiple electric vehicles include multiple charging electrodes to simultaneously direct power to multiple electric vehicles. The charging electrodes may direct power to the electric vehicles from an utility grid or from a secondary power source.Type: ApplicationFiled: October 5, 2018Publication date: July 30, 2020Applicant: Proterra Inc.Inventors: Dustin GRACE, Rajiv SINGHAL, Andre LALLJIE, Brian PEVEAR, Thomas BLAZAK, Seamus McGRATH, John GERBER, Roger INNES
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Publication number: 20200238810Abstract: A battery system for an electric vehicle includes a first battery module with a first heater and a second battery module with a second heater. The battery system also includes a control system configured to selectively activate the first or the second heater to dissipate energy from the first or the second battery module.Type: ApplicationFiled: April 14, 2020Publication date: July 30, 2020Applicant: Proterra Inc.Inventors: Dustin GRACE, Brian PEVEAR
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Patent number: 10658714Abstract: A method of controlling the battery system of an electric vehicle includes detecting a thermal event in a first battery pack of a plurality of battery packs of the battery system, and at least partially powering down the electric vehicle automatically in response to the detected thermal event. The method may also include initiating a thermal rejection scheme in response to the detected thermal event.Type: GrantFiled: March 20, 2018Date of Patent: May 19, 2020Assignee: Proterra Inc.Inventors: Dustin Grace, Brian Pevear
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Patent number: 10647189Abstract: A battery system for an electric vehicle includes a first battery module with a first heater and a second battery module with a second heater. The battery system also includes a control system configured to selectively activate the first or the second heater to dissipate energy from the first or the second battery module.Type: GrantFiled: March 15, 2019Date of Patent: May 12, 2020Assignee: Proterra Inc.Inventors: Dustin Grace, Brian Pevear
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Publication number: 20190319448Abstract: A battery system may include a controller and multiple parallel connected battery strings, with each string including at least one battery, a passive overcurrent protection device and an active overcurrent protection device. The passive overcurrent protection device may be configured to disconnect the string from the battery system when an electrical current in the string exceeds a first threshold value, and the active overcurrent protection device may be configured to disconnect the string from the battery system upon activation by the controller. The controller may be configured to (a) activate a first active overcurrent protection device of a first string of the multiple strings at a first time, and (b) activate a second active overcurrent protection device of a second string of the multiple strings at a second time different from the first time.Type: ApplicationFiled: April 17, 2018Publication date: October 17, 2019Applicant: Proterra Inc.Inventor: Brian PEVEAR
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Publication number: 20190210443Abstract: A battery system for an electric vehicle includes a first battery module with a first heater and a second battery module with a second heater. The battery system also includes a control system configured to selectively activate the first or the second heater to dissipate energy from the first or the second battery module.Type: ApplicationFiled: March 15, 2019Publication date: July 11, 2019Applicant: Proterra Inc.Inventors: Dustin GRACE, Brian PEVEAR
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Patent number: 10272758Abstract: A method of operating an electric vehicle having a battery system with a first battery module and a second battery module includes sending a triggering signal. And, in response to the triggering signal, selectively dissipating energy from the first battery module without dissipating energy from the second battery module.Type: GrantFiled: November 2, 2016Date of Patent: April 30, 2019Assignee: Proterra Inc.Inventors: Dustin Grace, Brian Pevear
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Publication number: 20180212288Abstract: A method of controlling the battery system of an electric vehicle includes detecting a thermal event in a first battery pack of a plurality of battery packs of the battery system, and at least partially powering down the electric vehicle automatically in response to the detected thermal event. The method may also include initiating a thermal rejection scheme in response to the detected thermal event.Type: ApplicationFiled: March 20, 2018Publication date: July 26, 2018Inventors: Dustin Grace, Brian Pevear
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Publication number: 20180118011Abstract: A method of operating an electric vehicle having a battery system with a first battery module and a second battery module includes sending a triggering signal. And, in response to the triggering signal, selectively dissipating energy from the first battery module without dissipating energy from the second battery module.Type: ApplicationFiled: November 2, 2016Publication date: May 3, 2018Applicant: Proterra Inc.Inventors: Dustin GRACE, Brian PEVEAR
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Patent number: 9960458Abstract: Provided are battery systems having multiple independently controlled sets of battery cells and method of using these systems to power, for example, drive trains of electric and hybrid vehicles. A battery system includes two or more sets of battery cells. Each set can be discharged and/or charged independently of another set based on different factors, such as a current power demand, power output capabilities of each set, and other like factors. One or multiple sets can be used to deliver power at any given time. In some embodiments, one set may be used to charge another set in the same power system. The same or different types of battery cells may be used in different sets. For example, one set may have battery cells having a higher power output capability, while another set may have battery cells with a higher energy density.Type: GrantFiled: April 29, 2016Date of Patent: May 1, 2018Assignee: QuantumScape CorporationInventors: Phil Weicker, Brian Pevear, Jay Underwood, Tim Holme, Wes Hermann
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Patent number: 9954259Abstract: A method of controlling the battery system of an electric vehicle includes detecting a thermal event in a first battery pack of a plurality of battery packs of the battery system, and at least partially powering down the electric vehicle automatically in response to the detected thermal event. The method may also include initiating a thermal rejection scheme in response to the detected thermal event.Type: GrantFiled: December 7, 2016Date of Patent: April 24, 2018Assignee: Proterra Inc.Inventors: Dustin Grace, Brian Pevear
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Publication number: 20160380315Abstract: Provided are battery systems having multiple independently controlled sets of battery cells and method of using these systems to power, for example, drive trains of electric and hybrid vehicles. A battery system includes two or more sets of battery cells. Each set can be discharged and/or charged independently of another set based on different factors, such as a current power demand, power output capabilities of each set, and other like factors. One or multiple sets can be used to deliver power at any given time. In some embodiments, one set may be used to charge another set in the same power system. The same or different types of battery cells may be used in different sets. For example, one set may have battery cells having a higher power output capability, while another set may have battery cells with a higher energy density.Type: ApplicationFiled: April 29, 2016Publication date: December 29, 2016Applicant: QuantumScape CorporationInventors: Phil Weicker, Brian Pevear, Jay Underwood, Tim Holme, Wes Hermann