公开(公告)号：US10994734B2

公开(公告)日：2021-05-04

申请号：US16435205

申请日：2019-06-07

Applicant: Ford Global Technologies, LLC

Inventor： Weitian Chen ,  Yang Xu ,  Zhengyu Dai ,  Stuart N. Ford ,  Qi Wang ,  Hong Jiang

IPC: B60W10/06 ,  B60W30/18 ,  B60W10/02 ,  B60W30/188 ,  B60W50/00

Abstract: Systems and methods for operating a driveline of a vehicle that includes an automatic transmission and a torque converter are described. In one example, vehicle launch is controlled according to a linear quadratic regulator that provides feedback control according to torque converter slip error and vehicle speed error. The vehicle launch is also controlled according to feed forward control that is based on requested torque converter slip and requested vehicle speed.

公开(公告)号：US10746291B2

公开(公告)日：2020-08-18

申请号：US16250650

申请日：2019-01-17

Applicant: Ford Global Technologies, LLC

Inventor： Yang Xu ,  Weitian Chen ,  Stuart N. Ford ,  Zhengyu Dai ,  Qi Wang ,  Hong Jiang

IPC: F16H61/14 ,  F02D11/10 ,  B60W10/06 ,  B60W10/02 ,  F16H59/46

Abstract: A method of operating a vehicle includes, responsive to a command to launch the vehicle and while the vehicle is in a first gear, determining, at a controller, a feedforward component including a target engine torque and a target bypass clutch torque, and a feedback component that is based on an error between the target converter slip and a measured converter slip and between the target wheel torque and a measured wheel torque. The method further includes changing a commanded engine torque and a commanded bypass clutch torque based on the feedforward component and the feedback component.

公开(公告)号：US20190077403A1

公开(公告)日：2019-03-14

申请号：US15701802

申请日：2017-09-12

Applicant: Ford Global Technologies, LLC

Inventor： Yang Xu ,  Zhengyu Dai ,  Guopeng Hu ,  Hong Jiang ,  Bradley D. Riedle

IPC: B60W30/18 ,  B60W10/06 ,  B60W10/115 ,  B60W10/02

Abstract: To reduce fuel consumption, a transmission is shifted into a neutral state, called neutral idle, when a vehicle stops in a drive mode. During a transition from a neutral idle state to an engaged state, the engine torque is controlled to avoid excessive shift energy and to mitigate acceleration drop. Specifically, the engine torque is set to a level equal to a sum of a transmission torque capacity and an offset, which is a function of accelerator pedal position. The transmission torque capacity is calculated based on the engaging shift element torque capacity and torque ratios associated with the kinematics and the torque converter. To accommodate noise factors such as variation over time, the offset function is adapted in response to measured clutch energy and acceleration drop.

公开(公告)号：US10036470B2

公开(公告)日：2018-07-31

申请号：US14939421

申请日：2015-11-12

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Hong Jiang ,  Zhengyu Dai ,  Weitian Chen ,  Timothy L. Sargent ,  Yang Xu

IPC: B60W10/101 ,  F16H61/662 ,  F16H59/18 ,  F16H59/44 ,  F16H59/54 ,  F16H59/36 ,  F16H59/22

CPC classification number: F16H61/662 ,  F16H59/18 ,  F16H59/22 ,  F16H59/44 ,  F16H59/54 ,  F16H61/66259 ,  F16H2059/366

Abstract: A vehicle includes an engine with an associated engine-speed sensor, and wheels each having a respective wheel-speed sensor. The vehicle also includes a continuously variable transmission (CVT) coupled to the engine and configured to operate at variable input-to-output ratios. At least one controller is programmed to reduce the operating ratio of the CVT in response to the engine-speed sensor indicating the engine is operating at idle speed and the wheel-speed sensor indicating the velocity is approximately zero. This provides less noise, vibration and harshness in the vehicle due to the reduced ratio that is possible during conditions in which a vehicle launch in that reduced ratio may not be acceptable.

公开(公告)号：US20180029598A1

公开(公告)日：2018-02-01

申请号：US15224244

申请日：2016-07-29

Applicant: Ford Global Technologies, LLC

Inventor： Ralph Wayne Cunningham ,  Zhengyu Dai ,  Yang Xu ,  Sathish Atluri ,  Ross Dykstra Pursifull

IPC: B60W30/188 ,  F16H63/40 ,  B60W10/06 ,  F16H59/54 ,  F16H59/60 ,  B60W10/11 ,  F16H61/02 ,  F16H59/44

CPC classification number: B60W30/188 ,  B60W10/06 ,  B60W10/11 ,  B60W2520/10 ,  B60W2540/12 ,  B60W2540/16 ,  B60W2550/10 ,  B60W2710/0605 ,  B60W2710/0633 ,  B60W2710/0666 ,  B60W2710/1005 ,  F16H59/44 ,  F16H59/54 ,  F16H61/0204

Abstract: Systems and methods for reducing perception of transitions from shifting a transmission from neutral to drive are described. In one example, the transmission is shifted from neutral to drive in response to brake pedal motion before the brake pedal is fully released so that timing of pressurizing clutches and engaging a forward gear is advanced to occur while the brake pedal is still applied.

公开(公告)号：US12294321B2

公开(公告)日：2025-05-06

申请号：US18046046

申请日：2022-10-12

Applicant: Ford Global Technologies, LLC

Inventor： Yingfeng Ji ,  Yang Xu ,  Michael W. Degner ,  Jiyao Wang

IPC: H02P21/00 ,  H02P21/18 ,  H02P21/22

Abstract: Systems and methods for operating an electric drive system for an electric or hybrid vehicle is described. In one example, the drive system is operated by suppling a pulsed torque current command while supplying a zero flux current command. The torque current command and the flux current command make up winding current commands for an electric machine.

公开(公告)号：US12081152B2

公开(公告)日：2024-09-03

申请号：US17974713

申请日：2022-10-27

Applicant: Ford Global Technologies, LLC

Inventor： Ji Wu ,  Yang Xu

IPC: H03K17/16 ,  B60L50/51 ,  H02P27/06 ,  B60L50/60

CPC classification number: H02P27/06 ,  B60L50/51 ,  B60L50/60 ,  B60L2210/40

Abstract: An electrified vehicle includes a traction battery, an inverter coupled to the traction battery via positive and negative legs of a high voltage bus and operable to convert DC power from the traction battery to three-phase AC power, a capacitor connected across the positive and negative legs of the high voltage bus, an electric machine having three phases coupled to the inverter, and a controller programmed to control electric machine voltage toward zero at a first slew rate or control electric machine current to a target short circuit current at a second slew rate in response to an active short request signal and to control the inverter to actively short the three phases of the electric machine after either (a) a specified elapsed time, or (b) after the electric machine voltage is below a first threshold or the current is within a predetermined range of the target short circuit current.

公开(公告)号：US11820371B2

公开(公告)日：2023-11-21

申请号：US18079613

申请日：2022-12-12

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Guopeng Hu ,  Yang Xu ,  Zhengyu Dai ,  Hong Jiang

IPC: B60W10/10 ,  B60W30/14 ,  B60W40/072 ,  B60W10/06 ,  B60W10/18 ,  B60W40/09 ,  B60W30/18 ,  B60W40/109

CPC classification number: B60W30/143 ,  B60W10/06 ,  B60W10/10 ,  B60W10/18 ,  B60W30/18109 ,  B60W30/18145 ,  B60W40/072 ,  B60W40/09 ,  B60W40/109 ,  B60W2520/125 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2540/18 ,  B60W2540/30 ,  B60W2552/30 ,  B60W2556/10 ,  B60W2556/50 ,  B60W2710/0666 ,  B60W2710/1005 ,  B60W2710/125 ,  B60W2710/18 ,  B60W2720/106 ,  B60W2720/125

Abstract: A vehicle includes an engine, an accelerator pedal, and a controller. The controller is programmed to command torque to the engine based on a set speed of adaptive cruise control and is programmed to, in response to the adaptive cruise control being active, a measured lateral acceleration of the vehicle exceeding a user-defined lateral acceleration threshold during a road curve, and the accelerator pedal being released, reduce a speed of the vehicle below the set speed until the measured lateral acceleration is less than the lateral acceleration threshold.

公开(公告)号：US20230166721A1

公开(公告)日：2023-06-01

申请号：US18161265

申请日：2023-01-30

Applicant: Ford Global Technologies, LLC

Inventor： Yang Xu ,  Akshay Bichkar ,  Zhengyu Dai ,  Hiral Jayantilal Haria ,  Hong Jiang ,  Jason Meyer

IPC: B60W20/40 ,  F16D48/06

CPC classification number: B60W20/40 ,  F16D48/066 ,  F16D2500/3065 ,  F16D2500/3024 ,  F16D2500/3025 ,  F16D2500/10412 ,  F16D2500/30412 ,  F16D2500/1064 ,  B60W2710/083

Abstract: A method includes estimating a first pressure at a first location of a clutch based on a flow rate of a fluid in the clutch, computing a first torque lead value based on the first pressure, computing a second torque lead value based on a second pressure, computing a third torque lead value by combining the first torque lead value and the second torque lead value, and applying torque from a motor of the vehicle based on the third torque lead value.

公开(公告)号：US11524679B2

公开(公告)日：2022-12-13

申请号：US17170409

申请日：2021-02-08

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Guopeng Hu ,  Yang Xu ,  Zhengyu Dai ,  Hong Jiang

IPC: B60W10/18 ,  B60W30/14 ,  B60W40/072 ,  B60W10/06 ,  B60W40/09 ,  B60W10/10 ,  B60W30/18 ,  B60W40/109

Abstract: A vehicle includes an engine, an accelerator pedal, and a controller. The controller is programmed to command torque to the engine based on a set speed of adaptive cruise control and is programmed to, in response to the adaptive cruise control being active, a measured lateral acceleration of the vehicle exceeding a user-defined lateral acceleration threshold during a road curve, and the accelerator pedal being released, reduce a speed of the vehicle below the set speed until the measured lateral acceleration is less than the lateral acceleration threshold.