公开(公告)号：US10408342B2

公开(公告)日：2019-09-10

申请号：US15726988

申请日：2017-10-06

Applicant: Ford Global Technologies, LLC

Inventor： Jianping Zhang ,  Jaewon Choi ,  Kendrick Morrison ,  Stephen Michael Cicala ,  Cory Benson LaRoche

IPC: F16H61/06 ,  B60W30/19 ,  B60W10/115 ,  B60W50/00 ,  F16H59/14

Abstract: In a transmission hydraulic control system, a gain control valve may be used to switch between a low gain and a high gain based on line pressure. Line pressure may be controlled as a function of turbine torque. If the gain of a holding element or oncoming element changes during a shift as a result of changing turbine torque, shift quality may degrade. If the gain is set low at the beginning of the shift, the controller limits engine torque to ensure that the line pressure is not increased beyond a level that would cause a gain switch. If the gain is set high at the beginning of a shift, the controller maintains the line pressure high enough to prevent a switch to low gain, even if turbine torque drops.

公开(公告)号：US10131357B2

公开(公告)日：2018-11-20

申请号：US15430940

申请日：2017-02-13

Applicant: Ford Global Technologies, LLC

Inventor： Kurt Howard Nickerson ,  Bradley Dean Riedle ,  Kendrick Morrison ,  Jianping Zhang ,  Cory Benson LaRoche

IPC: B60W10/06 ,  B60W30/188 ,  B60W10/115

Abstract: A vehicle powertrain includes an engine and a transmission, each controlled by controllers that communicate with one another. When the vehicle is coasting in certain gears, a one-way clutch over-runs. When the driver depresses the accelerator pedal (tips in), the transmission controller adjusts a transmission torque demand limit which is communicated to the engine controller. In response, the engine controller adjusts the engine torque, resulting in a smooth re-engagement of the one-way clutch.

公开(公告)号：US20240141987A1

公开(公告)日：2024-05-02

申请号：US17975106

申请日：2022-10-27

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Cory Benson LaRoche ,  Bradley Dean Riedle ,  Stephen Michael Cicala ,  Jianping Zhang

IPC: F16H61/28 ,  F16H59/40 ,  F16H59/50

CPC classification number: F16H61/2807 ,  F16H59/40 ,  F16H59/50 ,  F16H2059/506

Abstract: A method is proposed to complete a power-on upshift while a vehicle encounters wheel slip conditions such as driving in loose sand. The wheels slip conditions may be detected based on a maximum rate of change of an output shaft exceeding a threshold. In response to the wheel slip conditions, one or more shift parameters may be adjusted to bias the shift toward a tie-up and decrease the chance of a flare. These modified shift parameters may include an increased stroke pressure, a delayed off-going clutch release timing, and an increased ratio change capacity.

公开(公告)号：US11932254B1

公开(公告)日：2024-03-19

申请号：US17977397

申请日：2022-10-31

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Cory Benson LaRoche ,  Stephen Michael Cicala ,  Jianping Zhang ,  Bradley Dean Riedle ,  Jesse D. L. Brunais ,  Michael Simon ,  Leonard Dziubinschi

IPC: B60W30/19 ,  B60W10/06 ,  B60W10/11 ,  F02D41/00 ,  F02D41/02 ,  F02P5/15 ,  F16H59/18 ,  F16H61/28 ,  F16H59/14

CPC classification number: B60W30/19 ,  B60W10/06 ,  B60W10/11 ,  F02D41/0087 ,  F02D41/022 ,  F02D41/023 ,  F02P5/1502 ,  F16H59/18 ,  F16H61/2807 ,  B60W2510/1025 ,  B60W2510/105 ,  B60W2540/10 ,  B60W2710/0666 ,  B60W2710/1005 ,  B60W2710/1077 ,  F16H2059/148

Abstract: A vehicle includes an engine, a transmission, and a controller. The engine is configured to generate power. The transmission is configured to transfer power from the engine to at least one drive wheel to propel the vehicle. The controller is programmed to, in response to a command to shift the transmission and a corresponding command to decrease a torque of the engine to less than a threshold corresponding to a spark retard limit during the shift, (i) increase the pressure of an oncoming clutch to engage the oncoming clutch, (ii) retard an engine spark at the spark retard limit to reduce the torque of the engine to the threshold during the engagement of the oncoming clutch, and (iii) shutdown at least one cylinder of the engine to further reduce the torque of the engine to less than the threshold during the engagement of the oncoming clutch.

公开(公告)号：US11077856B2

公开(公告)日：2021-08-03

申请号：US16424354

申请日：2019-05-28

Applicant: Ford Global Technologies, LLC

Inventor： Jaewon Choi ,  Jianping Zhang ,  Steve Michael Cicala ,  Kendrick Morrison ,  Kurt Howard Nickerson

IPC: B60W10/08 ,  B60W30/19 ,  B60W30/02 ,  B60W20/10 ,  B60W10/02 ,  B60W30/20 ,  B60W20/14 ,  B60W10/115

Abstract: Systems and methods for operating a vehicle that includes an engine and an electric machine are described. In one example, an actual total number of transmission gear downshifts are counted to determine whether or not a transmission clutch characterization is immature. The transmission clutch characterization may be adjusted if it is determined to be immature.

公开(公告)号：US20180229728A1

公开(公告)日：2018-08-16

申请号：US15430940

申请日：2017-02-13

Applicant: Ford Global Technologies, LLC

Inventor： Kurt Howard Nickerson ,  Bradley Dean Riedle ,  Kendrick Morrison ,  Jianping Zhang ,  Cory Benson LaRoche

IPC: B60W30/188 ,  B60W10/06 ,  B60W10/115

CPC classification number: B60W30/188 ,  B60W10/06 ,  B60W10/115 ,  B60W2510/0241 ,  B60W2540/10 ,  B60W2710/0666 ,  B60W2710/105

Abstract: A vehicle powertrain includes an engine and a transmission, each controlled by controllers that communicate with one another. When the vehicle is coasting in certain gears, a one-way clutch over-runs. When the driver depresses the accelerator pedal (tips in), the transmission controller adjusts a transmission torque demand limit which is communicated to the engine controller. In response, the engine controller adjusts the engine torque, resulting in a smooth re-engagement of the one-way clutch.

公开(公告)号：US12162495B2

公开(公告)日：2024-12-10

申请号：US18086787

申请日：2022-12-22

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Cory Benson LaRoche ,  Jianping Zhang ,  Jesse D. L. Brunais ,  Stephen Michael Cicala ,  Michael S. Simon ,  Paul Hollar

IPC: B60W30/19 ,  B60W10/06 ,  B60W10/11

Abstract: A vehicle includes an engine and a transmission coupled to the engine. A vehicle controller is programmed to, in response to a shift of the transmission with the vehicle being in a sport mode or other precondition being present, command the engine to skip one or more fuel injector events of the engine during an inertia phase of the shift.

公开(公告)号：US20210246844A1

公开(公告)日：2021-08-12

申请号：US16787687

申请日：2020-02-11

Applicant: Ford Global Technologies, LLC

Inventor： Bradley Dean Riedle ,  Kurt Howard Nickerson ,  Jianping Zhang ,  Kendrick Morrison ,  David H. Schmitt ,  Markian Oleh Diakiw ,  Charles Suter

IPC: F02D41/02 ,  B60W10/06 ,  B60W10/115

Abstract: A method for downshifting a vehicle having an automatic transmission is described. In one example, the method determines whether or not conditions are met for a power matching downshift. If conditions are met for a power matching downshift, output power of a powertrain propulsion torque source at an end of the power matching downshift is adjusted to an output power of the powertrain propulsion torque source at the beginning of the power matching downshift plus an offset power.

公开(公告)号：US20200377103A1

公开(公告)日：2020-12-03

申请号：US16424354

申请日：2019-05-28

Applicant: Ford Global Technologies, LLC

Inventor： Jaewon Choi ,  Jianping Zhang ,  Steve Michael Cicala ,  Kendrick Morrison ,  Kurt Howard Nickerson

IPC: B60W30/19 ,  B60W20/10 ,  B60W30/02

Abstract: Systems and methods for operating a vehicle that includes an engine and an electric machine are described. In one example, an actual total number of transmission gear downshifts are counted to determine whether or not a transmission clutch characterization is immature. The transmission clutch characterization may be adjusted if it is determined to be immature.

公开(公告)号：US10343690B2

公开(公告)日：2019-07-09

申请号：US15791729

申请日：2017-10-24

Applicant: Ford Global Technologies, LLC

Inventor： Cory Benson LaRoche ,  Bradley Dean Riedle ,  Jianping Zhang ,  Kendrick Morrison ,  Kenneth Edward Sovel

IPC: B60W10/06 ,  B60W30/19 ,  B60W10/115 ,  F16H61/04 ,  F16H3/66

Abstract: A controller commands an engine torque level in response to a driver demanded torque based on an accelerator pedal position. If the driver demanded torque decreases rapidly during or just prior to a torque phase of a shift, the controller commands the engine to temporarily generate torque exceeding the driver demand. The controller sets a nominal engine torque equal to the driver demand torque before the rapid decrease, slowly decreases the nominal engine torque during the torque phase, and decreases the nominal torque at progressively faster rates during the inertia phase to bring the nominal torque back into agreement with the driver demanded torque. The commanded engine torque is based on the nominal torque, but may be less than the nominal torque during the inertia phase to permit the engine speed to decrease faster.