公开(公告)号：US11325482B2

公开(公告)日：2022-05-10

申请号：US16713554

申请日：2019-12-13

Applicant: Textron Innovations Inc.

Inventor： Arthur James Harvey ,  Norman R. Padgett ,  John Ledden ,  Robert Charles Bradley ,  Patrick Dwaine Warden

IPC: B60L58/10 ,  B60L53/00 ,  B60L1/00 ,  B60L53/50 ,  B60L7/12 ,  B60R16/033 ,  H02J7/00 ,  H02P1/02 ,  H02P3/06 ,  H02J9/00

Abstract: 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.

公开(公告)号：US11124074B2

公开(公告)日：2021-09-21

申请号：US16667023

申请日：2019-10-29

Applicant: Textron Innovations Inc.

Inventor： Arthur James Harvey ,  Norman R. Padgett ,  John Ledden ,  Luke Anthony O'Hara

IPC: B60L3/04 ,  H01M10/48 ,  H01M10/44 ,  B60L3/12 ,  H01M10/42 ,  B60L7/10 ,  H01M10/052 ,  B60L53/14 ,  B60L58/15 ,  B60L58/14 ,  B60L3/00

Abstract: A control system for handling a fault condition on a utility vehicle includes a lithium battery, a contactor configured to control electrical access to the lithium battery, and control circuitry coupled with the lithium battery and the contactor. The control circuitry is configured to detect, while the contactor is closed to provide a set of loads of the utility vehicle with electrical access to the lithium battery, onset of a fault condition. The control circuitry is further configured to perform, in response to detection of the onset of the fault condition, a set of remedial operations to address the fault condition. The control circuitry is further configured to perform, after a predefined amount of time has elapsed since the onset of the fault condition, a subsequent operation which opens the contactor if the fault condition remains and maintains closure of the contactor if the fault condition does not remain.

公开(公告)号：US20200062123A1

公开(公告)日：2020-02-27

申请号：US16667023

申请日：2019-10-29

Applicant: Textron Innovations Inc.

Inventor： Arthur James Harvey ,  Norman R. Padgett ,  John Ledden ,  Luke Anthony O'Hara

IPC: B60L3/04 ,  B60L3/00 ,  H01M10/48 ,  H01M10/44 ,  H01M10/42 ,  B60L58/12 ,  B60L53/14 ,  B60L7/10 ,  B60L3/12

Abstract: A control system for handling a fault condition on a utility vehicle includes a lithium battery, a contactor configured to control electrical access to the lithium battery, and control circuitry coupled with the lithium battery and the contactor. The control circuitry is configured to detect, while the contactor is closed to provide a set of loads of the utility vehicle with electrical access to the lithium battery, onset of a fault condition. The control circuitry is further configured to perform, in response to detection of the onset of the fault condition, a set of remedial operations to address the fault condition. The control circuitry is further configured to perform, after a predefined amount of time has elapsed since the onset of the fault condition, a subsequent operation which opens the contactor if the fault condition remains and maintains closure of the contactor if the fault condition does not remain.

公开(公告)号：US10322688B2

公开(公告)日：2019-06-18

申请号：US15395245

申请日：2016-12-30

Applicant: Textron Innovations Inc.

Inventor： Arthur James Harvey ,  Norman R. Padgett ,  John Ledden ,  Robert Charles Bradley ,  Patrick Dwaine Warden

IPC: B60L11/00 ,  B60R16/033 ,  B60L1/00 ,  B60L11/18 ,  B60L7/12 ,  H02J7/00 ,  H02P1/02 ,  H02P3/06 ,  H02J9/00

Abstract: 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.

公开(公告)号：US20180186316A1

公开(公告)日：2018-07-05

申请号：US15395245

申请日：2016-12-30

Applicant: Textron Innovations Inc.

Inventor： Arthur James Harvey ,  Norman R. Padgett ,  John Ledden ,  Robert Charles Bradley ,  Patrick Dwaine Warden

IPC: B60R16/033 ,  H02J7/00 ,  B60L7/12 ,  B60L11/18 ,  H02P1/02 ,  H02P3/06

CPC classification number: B60R16/033 ,  B60L1/00 ,  B60L7/12 ,  B60L11/1809 ,  B60L11/1851 ,  B60L2240/80 ,  B60L2250/26 ,  H02J7/0063 ,  H02J9/005 ,  H02J2007/0067 ,  H02P1/022 ,  H02P3/06 ,  Y02T10/7011 ,  Y02T10/705 ,  Y02T10/7072 ,  Y02T10/7258 ,  Y02T10/92 ,  Y02T90/14

Abstract: 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.

公开(公告)号：US20180186244A1

公开(公告)日：2018-07-05

申请号：US15419556

申请日：2017-01-30

Applicant: Textron Innovations Inc.

Inventor： Arthur James Harvey ,  Norman R. Padgett ,  John Ledden

IPC: B60L11/18 ,  H02J7/00

CPC classification number: B60L11/1824 ,  B60L3/04 ,  B60L3/12 ,  B60L11/1816 ,  B60L11/1838 ,  B60L11/1859 ,  B60L11/1861 ,  B60L11/1864 ,  B60L11/187 ,  B60L2200/22 ,  B60L2200/40 ,  B60L2200/44 ,  B60L2220/50 ,  B60L2230/16 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/80 ,  H02J7/0031 ,  H02J7/0036 ,  H02J7/0045 ,  H02J7/0047 ,  Y02P90/60 ,  Y02T10/641 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/7061 ,  Y02T10/7088 ,  Y02T90/121 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163

Abstract: A charging system charges a lithium battery of a utility vehicle. The charging system includes a receptacle configured to couple with an external charger, a lithium battery configured to provide lithium battery power to a set of electrical loads of the utility vehicle, and control circuitry coupled with the receptacle and the lithium battery. The control circuitry is configured to detect connection between the external charger and the receptacle and, in response to detecting connection between the external charger and the receptacle, ascertain a charging state of the lithium battery. The control circuitry is further configured to output, based on the charging state, a control signal to the external charger through the receptacle, the control signal being configured to control charging output from the external charger to charge the lithium battery.

公开(公告)号：US20180186241A1

公开(公告)日：2018-07-05

申请号：US15419570

申请日：2017-01-30

Applicant: Textron Innovations Inc.

Inventor： Arthur James Harvey ,  Norman R. Padgett ,  John Ledden ,  Luke Anthony O'Hara

IPC: B60L3/04 ,  B60L3/00 ,  B60L11/18 ,  H01M10/0525 ,  H01M2/34 ,  H01M10/48

CPC classification number: B60L3/04 ,  B60L3/0046 ,  B60L3/0061 ,  B60L3/0076 ,  B60L3/12 ,  B60L7/10 ,  B60L53/14 ,  B60L58/12 ,  B60L2200/22 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/80 ,  H01M10/052 ,  H01M10/425 ,  H01M10/44 ,  H01M10/48 ,  H01M10/486 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A control system for handling a fault condition on a utility vehicle includes a lithium battery, a contactor configured to control electrical access to the lithium battery, and control circuitry coupled with the lithium battery and the contactor. The control circuitry is configured to detect, while the contactor is closed to provide a set of loads of the utility vehicle with electrical access to the lithium battery, onset of a fault condition. The control circuitry is further configured to perform, in response to detection of the onset of the fault condition, a set of remedial operations to address the fault condition. The control circuitry is further configured to perform, after a predefined amount of time has elapsed since the onset of the fault condition, a subsequent operation which opens the contactor if the fault condition remains and maintains closure of the contactor if the fault condition does not remain.