公开(公告)号：US10295053B2

公开(公告)日：2019-05-21

申请号：US15783266

申请日：2017-10-13

Applicant: Ford Global Technologies, LLC

Inventor： Stephen Michael Cicala ,  John Randall Armstead ,  Dongdong Dee Li ,  Alexander Phillip McDonnell ,  Bradley D. Riedle ,  Conor Edward Sullivan

IPC: F16H61/12 ,  F16H3/66 ,  F16H61/02 ,  F16H59/14 ,  F16H59/56 ,  F16H59/68 ,  F16H59/72 ,  F16H59/78

Abstract: A vehicle includes a transmission having a first neutral with a first combination of engaged clutches and a second neutral with a second combination of engaged clutches. The second neutral has more engaged clutches than the first neutral. A vehicle controller is programmed to, in response to a request to shift from the first to the second neutral and a failed-on clutch being detected, inhibit the shift to remain in the first neutral.

公开(公告)号：US10821957B2

公开(公告)日：2020-11-03

申请号：US16519785

申请日：2019-07-23

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Timothy Fedullo ,  Conor Edward Sullivan ,  Stephen Michael Cicala ,  John Randall Armstead ,  Bradley Dean Riedle

IPC: F16D48/06 ,  B60W10/02 ,  B60K23/02 ,  F16D13/58 ,  F16D48/02

Abstract: A transmission includes a selectable one-way clutch with active and passive states. Successful transition from the active state to the passive state is only possible when there is no torque tending to cause overrunning. After commanding a transition from the active state to the passive state, a controller partially engages a first friction clutch to induce a torque tending away from overrunning until a lash crossing is detected. Then, the controller releases the first clutch and partially applies a second clutch to induce a torque toward overrunning. When slip is detected, indicating successful achievement of the passive state, the second clutch is released.

公开(公告)号：US10794435B2

公开(公告)日：2020-10-06

申请号：US16253257

申请日：2019-01-22

Applicant: Ford Global Technologies, LLC

Inventor： Timothy Fedullo ,  Abhay Mane ,  Bradley Dean Riedle ,  Conor Edward Sullivan ,  Stephen Michael Cicala ,  John Randall Armstead

IPC: F16D41/08 ,  F16H61/02

Abstract: A transmission includes a selectable one-way clutch with an active state and a passive state. To avoid occupant discomfort and hardware damage, transitions from the passive state to the active state must only be commanded when no or very little slip is present across the selectable one-way clutch. Several methods are presented to eliminate slip, depending on vehicle speed. When the vehicle is stationary, full engagement of a clutch that causes slip to be proportional to vehicle speed eliminates slip. When the vehicle is moving backwards, partial engagement of the above clutch eliminates slip. When the vehicle is moving forwards, full engagement of all but one clutch of a tie-up condition and partial engagement of the remaining clutch of the tie-up condition brings the vehicle to a stop and eliminates slip.

公开(公告)号：US10295054B2

公开(公告)日：2019-05-21

申请号：US15783273

申请日：2017-10-13

Applicant: Ford Global Technologies, LLC

Inventor： John Randall Armstead ,  Stephen Michael Cicala ,  Alexander Phillip McDonnell ,  Dongdong Dee Li ,  Conor Edward Sullivan

IPC: F16H61/12 ,  F16H3/66 ,  F16H61/02 ,  F16H59/14 ,  F16H59/56 ,  F16H59/68 ,  F16H59/72 ,  F16H59/78

Abstract: A vehicle includes a transmission having a first neutral with a first combination of engaged clutches and a second neutral with a second combination of engaged clutches. The first neutral has more engaged clutches than the second. A controller is programmed to, in response to a request to shift from a drive gear to the first neutral and a clutch of the drive gear being failed-on, shift to the second neutral.

公开(公告)号：US20200032862A1

公开(公告)日：2020-01-30

申请号：US16253257

申请日：2019-01-22

Applicant: Ford Global Technologies, LLC

Inventor： Timothy Fedullo ,  Abhay Mane ,  Bradley Dean Riedle ,  Conor Edward Sullivan ,  Stephen Michael Cicala ,  John Randall Armstead

IPC: F16D41/08 ,  F16H61/02

Abstract: A transmission includes a selectable one-way clutch with an active state and a passive state. To avoid occupant discomfort and hardware damage, transitions from the passive state to the active state must only be commanded when no or very little slip is present across the selectable one-way clutch. Several methods are presented to eliminate slip, depending on vehicle speed. When the vehicle is stationary, full engagement of a clutch that causes slip to be proportional to vehicle speed eliminates slip. When the vehicle is moving backwards, partial engagement of the above clutch eliminates slip. When the vehicle is moving forwards, full engagement of all but one clutch of a tie-up condition and partial engagement of the remaining clutch of the tie-up condition brings the vehicle to a stop and eliminates slip.

公开(公告)号：US20180119757A1

公开(公告)日：2018-05-03

申请号：US15337666

申请日：2016-10-28

Applicant: Ford Global Technologies, LLC

Inventor： Derek Kinch ,  Ravindra Velamakanni ,  Cory Benson LaRoche ,  John Randall Armstead ,  Joseph Scott Slayton

IPC: F16D48/06 ,  F16D25/12 ,  F16H63/46

CPC classification number: F16D48/066 ,  F16D25/12 ,  F16D2500/1026 ,  F16D2500/30404 ,  F16H59/72 ,  F16H61/061 ,  F16H63/46 ,  F16H2061/0209 ,  F16H2061/062 ,  F16H2200/2012 ,  F16H2200/2046

Abstract: In order to pre-stage a clutch piston in preparation for clutch engagement, a controller commands a high current to a Casting Integrated Direct Acting Solenoid (CIDAS) valve. This staging is performed in two distinct phases wherein the current is higher in the first phase than in the second phase. Staging the piston in this manner reduces the staging time and reduces the variability of the staging time. The duration of the first phase may be adjusted based on a number of parameters including, the length of a preceding engine off period, the number of clutch applications since the engine off period, a fluid temperature, and a length of time since a preceding engagement of the clutch.

公开(公告)号：US20200031331A1

公开(公告)日：2020-01-30

申请号：US16519785

申请日：2019-07-23

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Timothy Fedullo ,  Conor Edward Sullivan ,  Stephen Michael Cicala ,  John Randall Armstead ,  Bradley Dean Riedle

IPC: B60W10/02 ,  B60K23/02 ,  F16D13/58 ,  F16D48/06

Abstract: A transmission includes a selectable one-way clutch with active and passive states. Successful transition from the active state to the passive state is only possible when there is no torque tending to cause overrunning. After commanding a transition from the active state to the passive state, a controller partially engages a first friction clutch to induce a torque tending away from overrunning until a lash crossing is detected. Then, the controller releases the first clutch and partially applies a second clutch to induce a torque toward overrunning. When slip is detected, indicating successful achievement of the passive state, the second clutch is released.

公开(公告)号：US10337573B2

公开(公告)日：2019-07-02

申请号：US15337666

申请日：2016-10-28

Applicant: Ford Global Technologies, LLC

Inventor： Derek Kinch ,  Ravindra Velamakanni ,  Cory Benson LaRoche ,  John Randall Armstead ,  Joseph Scott Slayton

IPC: F16H61/06 ,  F16D48/06 ,  F16D25/12 ,  F16H63/46 ,  F16H59/72 ,  F16H61/02

Abstract: In order to pre-stage a clutch piston in preparation for clutch engagement, a controller commands a high current to a Casting Integrated Direct Acting Solenoid (CIDAS) valve. This staging is performed in two distinct phases wherein the current is higher in the first phase than in the second phase. Staging the piston in this manner reduces the staging time and reduces the variability of the staging time. The duration of the first phase may be adjusted based on a number of parameters including, the length of a preceding engine off period, the number of clutch applications since the engine off period, a fluid temperature, and a length of time since a preceding engagement of the clutch.