Patents by Inventor Robert Charles Bradley
Robert Charles Bradley 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: 20240101274Abstract: An electric pushback vehicle includes a frame having a forward portion and a rear portion. The vehicle further includes front drive axle and a rear drive axle configured to communicate power to ground engaging members. A traction battery is housed within the electric pushback vehicle and provides electric power to an electric motor to drive an output shaft. A transmission is connected to receive mechanical power from the electric motor through a torque converter.Type: ApplicationFiled: October 13, 2020Publication date: March 28, 2024Inventors: Trevor Douglas ROEBUCK, Brian Wallace YODER, Patrick Dwaine WARDEN, Chase Cherek SCHOFIELD, Robert Charles BRADLEY, Anthony Christopher MORRIS, Joshua David BARNES, William Cole KOSTER, Ian Kendall BALK, James Chandler LIGGETT
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Publication number: 20240092190Abstract: Techniques control a utility vehicle. Such techniques involve storing electric power in a lithium battery of the utility vehicle. Such techniques further involve operating a motor controller of the utility vehicle in a normal mode in which the motor controller provides electric power from a lithium battery of the utility vehicle to an electric motor of the utility vehicle to turn one or more ground engaging members of the utility vehicle. Such techniques further involve, after operating the motor controller in the normal operating mode, operating the motor controller in a walkaway mode in which the motor controller configures the electric motor to provide braking torque.Type: ApplicationFiled: November 27, 2023Publication date: March 21, 2024Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Patent number: 11865927Abstract: Techniques control a utility vehicle. Such techniques involve storing electric power in a lithium battery of the utility vehicle. Such techniques further involve operating a motor controller of the utility vehicle in a normal mode in which the motor controller provides electric power from a lithium battery of the utility vehicle to an electric motor of the utility vehicle to turn one or more ground engaging members of the utility vehicle. Such techniques further involve, after operating the motor controller in the normal operating mode, operating the motor controller in a walkaway mode in which the motor controller configures the electric motor to provide braking torque.Type: GrantFiled: April 7, 2022Date of Patent: January 9, 2024Assignee: Textron Innovations Inc.Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Publication number: 20220340044Abstract: Techniques involve utilizing a ducting system for an electric vehicle. The ducting system includes a motor housing constructed and arranged to house at least a portion of an electric propulsion motor of the electric vehicle. The ducting system further includes a storage pack housing coupled with the motor housing, the storage pack housing being constructed and arranged to house at least a portion of an electrical energy storage pack that supplies electric power to the electric propulsion motor. The ducting system further includes a fluid control assembly constructed and arranged to control fluid flow between the motor housing and the storage pack housing.Type: ApplicationFiled: April 20, 2022Publication date: October 27, 2022Inventors: Trevor Douglas Roebuck, Robert Charles Bradley, Patrick Dwaine Warden, Donny Hammond
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Publication number: 20220227241Abstract: Techniques control a utility vehicle. Such techniques involve storing electric power in a lithium battery of the utility vehicle. Such techniques further involve operating a motor controller of the utility vehicle in a normal mode in which the motor controller provides electric power from a lithium battery of the utility vehicle to an electric motor of the utility vehicle to turn one or more ground engaging members of the utility vehicle. Such techniques further involve, after operating the motor controller in the normal operating mode, operating the motor controller in a walkaway mode in which the motor controller configures the electric motor to provide braking torque.Type: ApplicationFiled: April 7, 2022Publication date: July 21, 2022Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Patent number: 11325482Abstract: Techniques involve controlling battery access on a utility vehicle. Such techniques involve monitoring status of input signals from a group comprising: a lithium battery system, a keyed switch, and a charging receptacle, comparing the status of the input signals to timeout settings stored in memory of the motion control system, initiating a timer based on comparison of the input signals to the timeout settings, and disconnecting at least one direct current (DC) path between a lithium battery interface and a power distribution interface of the utility vehicle in response to expiration of the timer. Such techniques further involve, after disconnecting, reconnecting the at least one DC current path between the lithium battery interface and the power distribution interface in response to a change in status of at least one of the input signals. Such techniques may be performed by a motion control system of the utility vehicle.Type: GrantFiled: December 13, 2019Date of Patent: May 10, 2022Assignee: Textron Innovations Inc.Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Patent number: 10933755Abstract: Techniques involve managing lithium battery access on a utility vehicle. In accordance with such techniques, a wakeup circuit includes a set of inputs, a set of outputs, and control logic coupled with the set of inputs and the set of outputs. The control logic is constructed and arranged to, in response to detecting a wakeup event from circuitry of the utility vehicle via the set of inputs, close a switching apparatus of the utility vehicle via the set of outputs to connect a lithium battery of the utility vehicle to a set of loads of the utility vehicle. The control logic is further constructed and arranged to, in response to detecting a sleep event, open the switching apparatus via the set of outputs to disconnect the lithium battery of the utility vehicle from the set of loads of the utility vehicle.Type: GrantFiled: May 9, 2019Date of Patent: March 2, 2021Assignee: Textron Innovations Inc.Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Publication number: 20200114847Abstract: Techniques involve controlling battery access on a utility vehicle. Such techniques involve monitoring status of input signals from a group comprising: a lithium battery system, a keyed switch, and a charging receptacle, comparing the status of the input signals to timeout settings stored in memory of the motion control system, initiating a timer based on comparison of the input signals to the timeout settings, and disconnecting at least one direct current (DC) path between a lithium battery interface and a power distribution interface of the utility vehicle in response to expiration of the timer. Such techniques further involve, after disconnecting, reconnecting the at least one DC current path between the lithium battery interface and the power distribution interface in response to a change in status of at least one of the input signals. Such techniques may be performed by a motion control system of the utility vehicle.Type: ApplicationFiled: December 13, 2019Publication date: April 16, 2020Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Publication number: 20190263340Abstract: Techniques involve managing lithium battery access on a utility vehicle. In accordance with such techniques, a wakeup circuit includes a set of inputs, a set of outputs, and control logic coupled with the set of inputs and the set of outputs. The control logic is constructed and arranged to, in response to detecting a wakeup event from circuitry of the utility vehicle via the set of inputs, close a switching apparatus of the utility vehicle via the set of outputs to connect a lithium battery of the utility vehicle to a set of loads of the utility vehicle. The control logic is further constructed and arranged to, in response to detecting a sleep event, open the switching apparatus via the set of outputs to disconnect the lithium battery of the utility vehicle from the set of loads of the utility vehicle.Type: ApplicationFiled: May 9, 2019Publication date: August 29, 2019Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Patent number: 10322688Abstract: A battery management system (BMS) controls lithium battery access on a utility vehicle. The BMS includes a battery interface that couples with a lithium battery, a load interface that couples with a set of loads of the utility vehicle, and control circuitry coupled with the battery interface and the load interface. The control circuitry mechanically disconnects the battery interface from the load interface in response to a sleep event. Additionally, after the battery interface is mechanically disconnected from the load interface, the control circuitry mechanically reconnects the battery interface to the load interface in response to a wakeup event. Furthermore, after the battery interface is mechanically reconnected to the load interface, the control circuitry maintains connection between the battery interface and the load interface to convey power from the lithium battery to the set of loads of the utility vehicle through the battery interface and the load interface.Type: GrantFiled: December 30, 2016Date of Patent: June 18, 2019Assignee: Textron Innovations Inc.Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Patent number: 10017169Abstract: A motion control system controls movement of a utility vehicle. The motion control system includes an electric brake that (i) provides mechanical resistance which inhibits a motor of the utility vehicle from turning when the electric brake is unpowered and (ii) removes the mechanical resistance to allow the motor of the utility vehicle to turn when power is provided to the electric brake. The motion control system further includes a lithium BMS having a contactor that closes to provide electrical access to a lithium battery and opens to remove electrical access to the lithium battery. The motion control system further includes control circuitry coupled with the electric brake and the lithium BMS. The control circuitry directs the lithium BMS to maintain closure of the contactor to provide power from the lithium battery to the electric brake in response to receipt of a tow signal.Type: GrantFiled: December 30, 2016Date of Patent: July 10, 2018Assignee: Textron Innovations Inc.Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Publication number: 20180186355Abstract: A motion control system controls movement of a utility vehicle. The motion control system includes an electric brake that (i) provides mechanical resistance which inhibits a motor of the utility vehicle from turning when the electric brake is unpowered and (ii) removes the mechanical resistance to allow the motor of the utility vehicle to turn when power is provided to the electric brake. The motion control system further includes a lithium BMS having a contactor that closes to provide electrical access to a lithium battery and opens to remove electrical access to the lithium battery. The motion control system further includes control circuitry coupled with the electric brake and the lithium BMS. The control circuitry directs the lithium BMS to maintain closure of the contactor to provide power from the lithium battery to the electric brake in response to receipt of a tow signal.Type: ApplicationFiled: December 30, 2016Publication date: July 5, 2018Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden
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Publication number: 20180186316Abstract: A battery management system (BMS) controls lithium battery access on a utility vehicle. The BMS includes a battery interface that couples with a lithium battery, a load interface that couples with a set of loads of the utility vehicle, and control circuitry coupled with the battery interface and the load interface. The control circuitry mechanically disconnects the battery interface from the load interface in response to a sleep event. Additionally, after the battery interface is mechanically disconnected from the load interface, the control circuitry mechanically reconnects the battery interface to the load interface in response to a wakeup event. Furthermore, after the battery interface is mechanically reconnected to the load interface, the control circuitry maintains connection between the battery interface and the load interface to convey power from the lithium battery to the set of loads of the utility vehicle through the battery interface and the load interface.Type: ApplicationFiled: December 30, 2016Publication date: July 5, 2018Inventors: Arthur James Harvey, Norman R. Padgett, John Ledden, Robert Charles Bradley, Patrick Dwaine Warden