公开(公告)号：US11865927B2

公开(公告)日：2024-01-09

申请号：US17715265

申请日：2022-04-07

Applicant: Textron Innovations Inc.

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

IPC: B60W10/08 ,  B60L53/00 ,  B60L1/00 ,  B60L58/10 ,  B60L53/50 ,  B60L7/12 ,  B60R16/033 ,  H02P1/02 ,  H02P3/06 ,  H02J9/00 ,  H02J7/00

CPC classification number: B60L53/00 ,  B60L1/00 ,  B60L7/12 ,  B60L53/50 ,  B60L58/10 ,  B60R16/033 ,  H02P1/022 ,  H02P3/06 ,  B60L2240/80 ,  B60L2250/26 ,  B60W2510/08 ,  H02J7/0025 ,  H02J7/00711 ,  H02J7/00712 ,  H02J9/005 ,  Y02T10/70 ,  Y02T10/7072 ,  Y02T10/72 ,  Y02T10/92 ,  Y02T90/14

Abstract: 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.

公开(公告)号：US20230155399A1

公开(公告)日：2023-05-18

申请号：US18098491

申请日：2023-01-18

Applicant: Textron Innovations Inc.

Inventor： Luke Anthony O'Hara ,  Arthur James Harvey

IPC: H02J7/00 ,  G05D1/02 ,  G05D1/00 ,  B60L53/36 ,  B60L58/12

CPC classification number: H02J7/0029 ,  B60L53/36 ,  B60L58/12 ,  G05D1/0027 ,  G05D1/0297 ,  H02J7/0045 ,  H02J7/0047 ,  B60L2200/22 ,  B60L2240/36 ,  G05D2201/0204 ,  H02J7/00045 ,  H02J7/00306

Abstract: A charge control system includes a lithium battery configured to provide lithium battery power to a set of electrical loads, a user signaling device, and control circuitry coupled with the lithium battery and the user signaling device. The control circuitry is operative to: (A) detect availability of charge from an external charger, (B) in response to detection of the availability of charge from the external charger and prior to controlling the external charger to adjust the amount of charge stored by the lithium battery, perform a set of pre-charging assessment operations, and (C) based on the set of pre-charging assessment operations, provide a user notification via the user signaling device, the user notification indicating whether the lithium battery is properly setup for charge adjustment. When the user signaling device generates the user notification, the user is informed that the utility vehicle is properly connected to the external charger.

公开(公告)号：US10195953B2

公开(公告)日：2019-02-05

申请号：US15419556

申请日：2017-01-30

Applicant: Textron Innovations Inc.

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

IPC: H02J7/00 ,  B60L11/18 ,  B60L3/04 ,  B60L3/12

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：US10195948B2

公开(公告)日：2019-02-05

申请号：US15452079

申请日：2017-03-07

Applicant: Textron Innovations Inc.

Inventor： Luke Anthony O'Hara ,  Arthur James Harvey ,  John Ledden ,  Russell William King

IPC: H02J7/00 ,  B60L11/18 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/44

Abstract: A technique controls charge on a lithium battery of a utility vehicle. The technique involves operating electronic circuitry of the utility vehicle in a normal operating mode in which the electronic circuitry charges the lithium battery to a normal charge level. The technique further involves, after operating the electronic circuity in the normal operating mode, transitioning the electronic circuitry from the normal operating mode to a storage mode in which the electronic circuitry is configured to set an amount of charge on the lithium battery to within a predefined storage range (or level) which is lower than the normal charge level. The technique further involves, in response to transitioning the electronic circuitry, adjusting the amount of charge on the lithium battery from an initial charge level which is outside the predefined storage range to an adjusted charge level which is within the predefined storage range.

公开(公告)号：US10017169B1

公开(公告)日：2018-07-10

申请号：US15395249

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: B60L7/12 ,  B60L11/18 ,  B60L7/16 ,  H02P3/14 ,  B60T13/74 ,  B60T7/04 ,  B60L7/10

Abstract: 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.

公开(公告)号：US20180186355A1

公开(公告)日：2018-07-05

申请号：US15395249

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: B60T13/74 ,  B60T7/04 ,  B60L11/18 ,  B60L7/10

CPC classification number: B60T13/748 ,  B60L7/10 ,  B60L11/1818 ,  B60L11/1859 ,  B60L11/1861 ,  B60L11/1877 ,  B60L2200/22 ,  B60L2240/30 ,  B60T1/062 ,  B60T7/045 ,  B60T17/22 ,  B60T2270/89 ,  B60Y2200/23 ,  B60Y2400/112 ,  F16D2121/22

Abstract: 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.