公开(公告)号：US12128770B2

公开(公告)日：2024-10-29

申请号：US17659918

申请日：2022-04-20

Applicant: Ford Global Technologies, LLC

Inventor： Yanan Zhao ,  Ming Lang Kuang ,  Carol Louise Okubo

IPC: B60L15/20 ,  B60L50/60 ,  B60L58/10 ,  G01C21/34 ,  B60K17/356

CPC classification number: B60L15/2045 ,  B60L50/60 ,  B60L58/10 ,  G01C21/3469 ,  B60K17/356

Abstract: Methods and systems are provided, including a method for an electric vehicle battery distribution among at least three motors. The method may comprise selecting a first drive path with at least first and second motors for an open-loop power allocation control, designating a second drive path with at least a third motor for an open-loop or a closed-loop power allocation control, determining a power allocation ratio of each motor relative to a total power; and operating the each motors with adjusted power limits based on the determined power allocation ratios.

公开(公告)号：US20240227579A1

公开(公告)日：2024-07-11

申请号：US18153194

申请日：2023-01-11

Applicant: Ford Global Technologies, LLC

Inventor： Yanan Zhao ,  Carol Okubo ,  Ming L. Kuang

IPC: B60L15/20

CPC classification number: B60L15/2045 ,  B60L2240/421 ,  B60L2240/423

Abstract: Methods and systems are provided, including a method for an electric vehicle having at least two motors providing drive torque. In one example, the method comprises operating with speed damping control, including determining that a first motor has more power authority than requested and a second motor has a shortage of power authority, and in response, reallocating power authority from the first motor to the second motor to increase usage of authorized power for speed damping. In one example of the method, the first motor and the second motor are in electronic communication with a centralized integrated control system.

公开(公告)号：US20230234451A1

公开(公告)日：2023-07-27

申请号：US17586029

申请日：2022-01-27

Applicant: Ford Global Technologies, LLC

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

IPC: B60L15/20 ,  B60L58/16

CPC classification number: B60L15/2045 ,  B60L58/16 ,  B60L2240/80

Abstract: An electrified vehicle includes a traction battery, an engine, and a controller. The controller is configured to generate a request for the engine in response to an input passing a threshold and to adjust the threshold when a state of health (SOH) of the traction battery is at a chance of violating a target, such as a warranty target. The request for the engine may be an engine pull up (EPU) request for starting the engine with the threshold being an EPU threshold in which case the controller lowers the EPU threshold when the battery SOH is at a chance of violating the target. The request for the engine may be an engine pull down (EPD) request for stopping the engine with the threshold being an EPD threshold in which case the controller lowers the EPD threshold when the battery SOH is at a chance of violating the target.

公开(公告)号：US11628818B2

公开(公告)日：2023-04-18

申请号：US16922840

申请日：2020-07-07

Applicant: Ford Global Technologies, LLC

Inventor： Yanan Zhao ,  Christopher John Teslak ,  Stuart N. Ford ,  Ralph Wayne Cunningham ,  Judhajit Roy ,  Chenliu Stephen Lu ,  Girish Gokul Chennupalli

IPC: B60W20/00 ,  F02N11/04 ,  F02N11/08 ,  B60W10/06 ,  B60W10/30 ,  F02D41/12 ,  B60W10/10 ,  F02D41/04 ,  F02D41/06 ,  F16H61/14 ,  B60W10/02 ,  B60K6/387 ,  B60K6/26

Abstract: A method and system for operating a vehicle that includes an automatic transmission with a torque converter clutch is described. In one example, the method includes predicting a time that the torque converter clutch will open so that stopping rotation of the engine may be requested before the torque converter clutch is opened. The stopping rotation of the engine is requested to conserve fuel.

公开(公告)号：US11465533B2

公开(公告)日：2022-10-11

申请号：US16718463

申请日：2019-12-18

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Yanan Zhao ,  Xiaohong Nina Duan ,  Jeffrey Allen Doering ,  Angel Fernando Porras ,  Jordan Mazaira

IPC: B60L58/26 ,  B60L50/64 ,  H01M10/613 ,  H01M10/625 ,  H01M10/48 ,  H01M10/6568 ,  H01M10/633

Abstract: A vehicle includes an electric machine, a battery, an accelerator pedal, a battery cooling system, and a controller. The electric machine is configured to propel the vehicle. The battery is configured to provide electrical power to the electric machine. The battery cooling system is configured to cool the battery in a plurality of cooling modes. A transition between cooling modes of the battery cooling system corresponds to either an increase or a decrease in battery power being utilized to cool the battery. The controller is programmed to truncate an acceleration request under certain conditions to prevent an increase in battery power output in order to reduce a rate at which the battery temperature increases and to prevent a transition to a cooling mode that requires an increase in battery power output.

公开(公告)号：US20220281352A1

公开(公告)日：2022-09-08

申请号：US17191224

申请日：2021-03-03

Applicant: Ford Global Technologies, LLC

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

IPC: B60L58/26 ,  B60K6/42 ,  B60L15/20 ,  B60W10/26 ,  B60W20/00 ,  H02J7/14 ,  H02M3/10

Abstract: A power system includes a primary bus connected to a traction battery, a secondary bus connected to an auxiliary battery, a power converter between the traction and auxiliary batteries, and a controller. The controller commands the power converter to increase a magnitude of current output to the secondary bus when an amount of charge current received by the traction battery exceeds a first amount threshold and commands the power converter to decrease the magnitude when an amount of charge current received by the auxiliary battery exceeds a second amount threshold.

公开(公告)号：US11417916B2

公开(公告)日：2022-08-16

申请号：US16741382

申请日：2020-01-13

Applicant: Ford Global Technologies, LLC

Inventor： Xiaohong Nina Duan ,  Yanan Zhao ,  Robert Taenaka

IPC: H01M10/42 ,  B60L58/12

Abstract: A system and method for intelligent battery charging management to improve battery life and charging efficiency of high capacity batteries that may not be deeply discharged on a regular basis may learn driving habits automatically and/or with user input and select an ending state-of-charge (SOC) to limit battery charging to less than maximum capacity based on current and/or anticipated ambient temperature and battery health of life (HOL). An expected vehicle travel distance before the next charge may be learned or determined based on vehicle or user inputs. An ending SOC based on battery temperature, a delta SOC to meet propulsive energy for the expected travel distance, cycling effect (depth of discharge) on battery HOL for a given delta SOC, and/or battery working efficiency may be used to control charging of the vehicle battery.

公开(公告)号：US20220009473A1

公开(公告)日：2022-01-13

申请号：US16922840

申请日：2020-07-07

Applicant: Ford Global Technologies, LLC

Inventor： Yanan Zhao ,  Christopher John Teslak ,  Stuart N. Ford ,  Ralph Wayne Cunningham ,  Judhajit Roy ,  Chenliu Stephen Lu ,  Girish Gokul Chennupalli

IPC: B60W20/00 ,  B60W10/02 ,  F02N11/04 ,  F02N11/08 ,  B60W10/06 ,  B60W10/30 ,  F02D41/12 ,  B60W10/10 ,  F02D41/04 ,  F02D41/06 ,  F16H61/14

Abstract: A method and system for operating a vehicle that includes an automatic transmission with a torque converter clutch is described. In one example, the method includes predicting a time that the torque converter clutch will open so that stopping rotation of the engine may be requested before the torque converter clutch is opened. The stopping rotation of the engine is requested to conserve fuel.

公开(公告)号：US11097721B1

公开(公告)日：2021-08-24

申请号：US16836398

申请日：2020-03-31

Applicant: Ford Global Technologies, LLC

Inventor： Yanan Zhao ,  Rajit Johri ,  Judhajit Roy ,  Christopher John Teslak

IPC: B60W20/13 ,  F16H63/50 ,  B60W10/06 ,  B60W10/08

Abstract: A method and system for operating a vehicle that includes an electric machine and an internal combustion engine is described. In one example, the method includes arbitrating between providing torque compensation to a driveline via an internal combustion engine or via an electric machine to improve transmission gear shifting. The method may consider a plurality of vehicle operating conditions to aid the arbitration.

公开(公告)号：US20210086623A1

公开(公告)日：2021-03-25

申请号：US16576274

申请日：2019-09-19

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Yixin Yao ,  Yanan Zhao ,  Mark Steven Yamazaki

IPC: B60L7/26 ,  B62D63/04 ,  B60L7/18 ,  B60T8/176

Abstract: A vehicle includes an axle, electric machine, friction, brakes, and a controller. The axle has an input shaft to an open differential and output shaft extending out of the open differential. The electric machine is secured to the input shaft and wheels are secured to the output shafts. The controller is programmed to, in response to an anti-locking braking event, generate a signal indicative of a total torque demand to brake the vehicle based on a difference between a desired and an actual wheel slip ratio, adjust a regenerative braking torque of the electric machine based on signal and a regenerative braking weighting coefficient to maintain or drive actual wheel slip toward the desired wheel slip, and adjust a friction braking torque of the friction brakes based on the signal and a friction braking weighting coefficient to drive actual wheel slip at or toward the desired wheel slip.