公开(公告)号：US11820254B2

公开(公告)日：2023-11-21

申请号：US15970469

申请日：2018-05-03

Applicant: Ford Global Technologies, LLC

Inventor： Dale Scott Crombez ,  Ming Lang Kuang ,  Yanan Zhao

IPC: B60L7/18 ,  B60L3/10 ,  B60W30/02 ,  B60W30/18 ,  B60W40/114 ,  B60W40/068

CPC classification number: B60L7/18 ,  B60L3/108 ,  B60W30/02 ,  B60W30/18127 ,  B60W30/18145 ,  B60W40/068 ,  B60W40/114 ,  B60T2270/604 ,  B60W2520/26 ,  B60W2540/18 ,  B60W2710/18 ,  B60Y2300/89

Abstract: A hybrid electric vehicle having one or more controllers, at least two independently driven electric machines (EMs) that are each coupled to separate drive wheels, and controllers configured to generate a torque split ratio responsive to lateral acceleration and/or unequal friction coefficients detected during braking, and to generate electric power with the motors by regeneratively braking each wheel with unequal torques adjusted by the ratio, such that combined wheel braking torques do not exceed a total braking torque limit for the vehicle. In some configurations, the controller(s) generate the torque split ratio by a predetermined lookup table that maps a plurality of torque split ratios to lateral accelerations, the coefficients, and other parameters. Further arrangements include the controller(s) coupled with sensors that detect wheel slip and yaw rate, and responsive to a braking signal, the controller(s) disengage regenerative braking when the wheel slip and/or vehicle yaw are detected.

公开(公告)号：US20230094310A1

公开(公告)日：2023-03-30

申请号：US17485912

申请日：2021-09-27

Applicant: Ford Global Technologies, LLC

Inventor： Yanan Zhao ,  Xiaohong Nina Duan ,  Ming Lang Kuang

IPC: B60L3/00 ,  B60L15/20 ,  B60L58/16 ,  B60L50/60

Abstract: This disclosure relates to an electrified vehicle configured to selectively deactivate a restricted power mode based on an acceleration request, such as an imminent or current acceleration request. A corresponding method is also disclosed. An example electrified vehicle includes a battery and a controller configured to apply a restricted power mode when a state of health of the battery is below a predefined lower threshold. Further, when in the restricted power mode, the controller is configured to limit an amount of power drawn from the battery. Additionally, the controller is configured to selectively deactivate the restricted power mode in response to a signal indicating a current or imminent request for acceleration of the electrified vehicle requiring power to be drawn from the battery above an upper limit of the restricted power mode.

公开(公告)号：US20230094070A1

公开(公告)日：2023-03-30

申请号：US17485876

申请日：2021-09-27

Applicant: Ford Global Technologies, LLC

Inventor： Xiaohong Nina Duan ,  Yanan Zhao ,  Ming Lang Kuang

IPC: B60L58/26 ,  B60L58/16 ,  H01M10/613 ,  H01M10/625 ,  H01M10/633 ,  H01M10/48 ,  H01M10/6563

Abstract: This disclosure relates to an electrified vehicle with a thermal management system for a battery. A corresponding method is also disclosed. An example electrified vehicle includes a battery and a thermal management system configured to thermally condition the battery at one of a plurality of thermal conditioning levels. Each of the thermal conditioning levels corresponds to a respective one of a plurality of battery temperature thresholds. The electrified vehicle further includes a controller. The controller is configured to determine which of the plurality of battery temperature thresholds is met or exceeded based on a temperature of the battery and to command the thermal management system to thermally condition the battery at corresponding one of the plurality of thermal conditioning levels. Further, when a state of health of the battery is outside a predefined range, the controller is configured to adjust each of the plurality of battery temperature thresholds.

公开(公告)号：US20210402877A1

公开(公告)日：2021-12-30

申请号：US16914710

申请日：2020-06-29

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Jose Velazquez Alcantar ,  Joseph Jay Torres ,  Ming Lang Kuang ,  Michael Edward Brewer

IPC: B60K26/02 ,  B60K1/02 ,  B60L58/12 ,  B60K17/34 ,  B60W30/18

Abstract: A vehicle with one-pedal driving mode includes a first axle having a first electric machine configured to power first wheels and a second axle having a second electric machine configured to power second wheels. A controller is programmed to, in response to a request for one-pedal driving mode, map pedal positions of the accelerator pedal to speeds of the first and second wheels such that each of the pedal positions corresponds to a driver-demanded speed of the first and second wheels, and control one or more of the electric machine so that the vehicle is propelled according to the driver-demanded speed.

公开(公告)号：US10730393B2

公开(公告)日：2020-08-04

申请号：US15783369

申请日：2017-10-13

Applicant: Ford Global Technologies, LLC

Inventor： Dale Scott Crombez ,  David John Messih ,  Yanan Zhao ,  Ming Lang Kuang ,  Walter Joseph Ortmann ,  Joseph Jay Torres ,  Stanley L. Bower, Jr.

IPC: B60L7/26 ,  B60T8/26 ,  F16D61/00 ,  B60T1/10 ,  B60L7/18 ,  B60T7/04 ,  B60T8/176

Abstract: Methods and systems are provided for operating a hybrid vehicle during operating conditions where vehicle braking is requested. In one example, regenerative braking is allocated to vehicle axles responsive to wheel torques of respective vehicle axles in response to an anti-lock braking system being activated. Additionally, friction braking torque is allocated to vehicle axles responsive to the anti-lock braking system being activated.

公开(公告)号：US10336334B2

公开(公告)日：2019-07-02

申请号：US15360262

申请日：2016-11-23

Applicant: Ford Global Technologies, LLC

Inventor： Bernard D. Nefcy ,  Yanan Zhao ,  Ming Lang Kuang

IPC: B60W30/18 ,  B60W10/08 ,  B60W10/11 ,  B60W20/00 ,  B60W50/00 ,  B60K6/48 ,  B60W20/30

Abstract: A vehicle may include an engine selectively coupled to a motor and a transmission. The vehicle may include a controller configured to, in response to actuation of a brake pedal, command the transmission to downshift during a regenerative braking event based on a regenerative braking downshift torque. The regenerative braking downshift torque may be determined from a predicted brake pedal input rate. The predicted brake pedal input rate may be based on road grade, vehicle headway range and a driver history. The predicted brake pedal input rate may be classified as Low, Medium, or High. The regenerative braking downshift torque may also be determined from a predicted brake torque rate that is based on a predicted deceleration rate of the vehicle, a vehicle speed prediction and a road grade prediction within a future time interval that begins upon actuation of the brake pedal.

公开(公告)号：US10336316B2

公开(公告)日：2019-07-02

申请号：US15342386

申请日：2016-11-03

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Ming Lang Kuang ,  Bernard D. Nefcy ,  Yanan Zhao ,  Daniel Scott Colvin

IPC: B60W10/02 ,  B60W20/40 ,  B60K6/387 ,  F16D48/06 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W30/18 ,  B60K6/46

Abstract: A vehicle includes an electric machine, battery, torque converter bypass clutch, drive wheel, and controller. The electric machine is configured to recharge the battery via regenerative braking. The torque converter bypass clutch is disposed between the electric machine and the drive wheel. The controller is programmed to, in response to a negative drive wheel torque command during a regenerative braking event, adjust a closed-state torque capacity of the torque converter bypass clutch based on the torque command.

公开(公告)号：US10308233B2

公开(公告)日：2019-06-04

申请号：US15016588

申请日：2016-02-05

Applicant: Ford Global Technologies, LLC

Inventor： Rajit Johri ,  Jeffrey Allen Doering ,  Ming Lang Kuang ,  Xiaoyong Wang ,  Mark Steven Yamazaki ,  Jason Meyer

IPC: B60W20/10 ,  B60K6/387 ,  B60W10/06 ,  B60W10/02 ,  B60W10/08 ,  B60W50/00 ,  B60W50/06

Abstract: Systems and methods for operating a hybrid powertrain that includes an engine and a motor/generator are described. The systems and methods align in time an estimated motor torque and an actual motor torque to provide an estimated driveline torque. The alignment compensates for communications delays between different controllers over a controller area network.

公开(公告)号：US10293810B2

公开(公告)日：2019-05-21

申请号：US14057618

申请日：2013-10-18

Applicant: Ford Global Technologies, LLC

Inventor： Xiaoyong Wang ,  Mark Steven Yamazaki ,  Wei Liang ,  Rajit Johri ,  Ryan Abraham McGee ,  Ming Lang Kuang

IPC: B60W10/08 ,  B60W20/40 ,  B60W10/02 ,  B60W10/06 ,  B60W10/10 ,  B60K6/48 ,  B60W20/00 ,  B60W30/18 ,  B60W20/50

Abstract: A vehicle includes an engine having a crankshaft, a transmission having an input, and a torque converter mechanically coupled to the input. The vehicle further includes an electric machine mechanically coupled to the torque converter, a clutch configured to mechanically couple the electric machine and crankshaft, and one or more controllers. The one or more controllers are programmed to, in response to the transmission being in a drive or reverse gear and a speed of the vehicle being less than a predetermined value in an absence of driver demand, control the electric machine to achieve a target speed to cause the torque converter to output torque such that the speed of the vehicle approaches a generally constant speed less than or equal to the predetermined value when the vehicle is on a generally flat grade.

公开(公告)号：US10259443B2

公开(公告)日：2019-04-16

申请号：US14057048

申请日：2013-10-18

Applicant: Ford Global Technologies, LLC

Inventor： Wei Liang ,  Mark Steven Yamazaki ,  Xiaoyong Wang ,  Rajit Johri ,  Ryan Abraham McGee ,  Ming Lang Kuang

IPC: B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60L1/00 ,  B60W30/18 ,  B60L1/02 ,  B60L11/14 ,  B60L11/18 ,  B60L15/20 ,  B60W20/13

Abstract: A vehicle includes an engine, an electric machine, a battery, and at least one controller. The vehicle may further comprise a port for supplying power to a load external to the vehicle. The controller is programmed to operate the engine at a power level based on a difference between a battery voltage and a reference voltage such that a power output by the electric machine reduces the difference. The power level may define an engine operating point that minimizes fuel consumption. The operating point may be an engine torque and an engine speed. The power level may be further based on a state of charge of the battery. The electric machine may be operated to cause the engine to rotate at an engine speed corresponding to the selected power level. The difference may be caused by varying power drawn by a load external to the vehicle.