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公开(公告)号:US20230182715A1
公开(公告)日:2023-06-15
申请号:US17643708
申请日:2021-12-10
Applicant: Ford Global Technologies, LLC
Inventor: Akshay Bichkar , Jason Meyer , Bradley D. Riedle , Corey James Blue , Joseph F. Kucharski , Bret Keller
CPC classification number: B60W20/40 , B60W10/06 , B60W10/02 , B60W10/08 , B60K6/387 , B60W2710/021 , B60W2710/1072 , B60W2710/025 , B60W2556/10
Abstract: Systems and methods for operating a driveline disconnect clutch of a hybrid vehicle are presented. In one example, the systems and methods may adjust a relationship (e.g., transfer function) between an amount of electric current that is supplied to a driveline disconnect clutch control valve and a commanded driveline disconnect clutch pressure.
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公开(公告)号:US20210107444A1
公开(公告)日:2021-04-15
申请号:US16599005
申请日:2019-10-10
Applicant: Ford Global Technologies, LLC
Inventor: Corey James Blue , Scott James Thompson , Kendrick Morrison , Scott Patrick Ries , Steve Michael Cicala , Kurt Howard Nickerson
Abstract: A method and system for operating a vehicle that includes a driveline disconnect clutch and a step-ratio transmission is described. In one example, the method includes shifting the step-ratio transmission to neutral and accelerating an engine to an expected input shaft speed of the step-ratio transmission via applying full output capacity of an electric machine to the engine.
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公开(公告)号:US20240068532A1
公开(公告)日:2024-02-29
申请号:US17823894
申请日:2022-08-31
Applicant: Ford Global Technologies, LLC
Inventor: Akshay Bichkar , Corey James Blue , Jason Meyer , Maruthi Ravichandran , Bradley Dean Riedle
IPC: F16D48/06
CPC classification number: F16D48/066 , F16D2500/10412 , F16D2500/3024 , F16D2500/3026 , F16D2500/30803 , F16D2500/30415 , B60W20/40
Abstract: Systems and methods for operating a driveline disconnect clutch of a hybrid vehicle are presented. In one example, a driveline disconnect clutch is de-stroked in a particular way so that the driveline disconnect clutch may be de-stroked more consistently. The de-stroking process may be followed by boosting and stroking the driveline disconnect clutch so as to preposition the driveline disconnect clutch or holding the clutch at an offset below stroke pressure to minimize drag.
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公开(公告)号:US11898527B2
公开(公告)日:2024-02-13
申请号:US17659098
申请日:2022-04-13
Applicant: Ford Global Technologies, LLC
Inventor: Maruthi Ravichandran , Akshay Bichkar , Marin Assaliyski , Corey James Blue
CPC classification number: F02N11/0851 , F02N5/00 , F02N11/04 , F02N11/0859 , F16D48/06 , F02N2200/0802 , F02N2200/101 , F16D2500/10412 , F16D2500/306 , F16D2500/308 , F16D2500/3144
Abstract: Systems and methods for selecting and scheduling which of a plurality of engine starting devices starts an internal combustion engine of a hybrid vehicle are presented. In one example, a scheduled start of the internal combustion engine via a driveline disconnect clutch is withdrawn during conditions when both a transmission gear shift is requested or in process and when a driver urgency level is greater than a threshold level.
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公开(公告)号:US20230332569A1
公开(公告)日:2023-10-19
申请号:US17659098
申请日:2022-04-13
Applicant: Ford Global Technologies, LLC
Inventor: Maruthi Ravichandran , Akshay Bichkar , Marin Assaliyski , Corey James Blue
CPC classification number: F02N11/0851 , F02N11/04 , F02N5/00 , F02N11/0859 , F16D48/06 , F02N2200/101 , F02N2200/0802 , F16D2500/10412 , F16D2500/308 , F16D2500/306 , F16D2500/3144
Abstract: Systems and methods for selecting and scheduling which of a plurality of engine starting devices starts an internal combustion engine of a hybrid vehicle are presented. In one example, a scheduled start of the internal combustion engine via a driveline disconnect clutch is withdrawn during conditions when both a transmission gear shift is requested or in process and when a driver urgency level is greater than a threshold level.
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公开(公告)号:US11679758B1
公开(公告)日:2023-06-20
申请号:US17643708
申请日:2021-12-10
Applicant: Ford Global Technologies, LLC
Inventor: Akshay Bichkar , Jason Meyer , Bradley D. Riedle , Corey James Blue , Joseph F. Kucharski , Bret Keller
CPC classification number: B60W20/40 , B60K6/387 , B60W10/02 , B60W10/06 , B60W10/08 , B60W2556/10 , B60W2710/021 , B60W2710/025 , B60W2710/1072
Abstract: Systems and methods for operating a driveline disconnect clutch of a hybrid vehicle are presented. In one example, the systems and methods may adjust a relationship (e.g., transfer function) between an amount of electric current that is supplied to a driveline disconnect clutch control valve and a commanded driveline disconnect clutch pressure.
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公开(公告)号:US20230182716A1
公开(公告)日:2023-06-15
申请号:US17643715
申请日:2021-12-10
Applicant: Ford Global Technologies, LLC
Inventor: Akshay Bichkar , Jason Meyer , Bradley D. Riedle , Corey James Blue , Joseph F. Kucharski
CPC classification number: B60W20/40 , B60K6/387 , B60W10/08 , B60W10/06 , B60W10/026 , B60W20/50 , B60K2006/4825
Abstract: Systems and methods for operating a driveline of a hybrid vehicle are presented. In one example, the systems and methods adjust a driveline disconnect clutch boost time duration or magnitude responsive to a pressure error and a time delay error. A driveline disconnect clutch may be operated via supplying a pressure to the driveline disconnect clutch that includes the adjusted boost time duration or magnitude.
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18.
公开(公告)号:US11618434B2
公开(公告)日:2023-04-04
申请号:US16983473
申请日:2020-08-03
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor: Scott James Thompson , Rajit Johri , Jason Meyer , Francis Connolly , Minku Lee , Justin Panhans , Bradley Dean Riedle , Arun Sebastian , Ameya Gadre , Corey James Blue , Andrew Burt
Abstract: A hybrid vehicle includes an electric machine, an engine selectively coupled to the electric machine by a disconnect clutch, and a controller. The controller is programmed to, in response to a change in the driver-demanded torque necessitating starting of the engine: determine a state of driving (SOD) based on the change in driver-demanded torque, wherein the SOD is indicative of a desired responsiveness of the vehicle, and the desired responsiveness increases as SOD increases; command a speed target to the engine equal to a predicted motor speed associated with the driver-demanded torque plus an offset that is based on the SOD; and command a capacity to the disconnect clutch at a rate and a magnitude based on the SOD.
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19.
公开(公告)号:US20220032903A1
公开(公告)日:2022-02-03
申请号:US16983473
申请日:2020-08-03
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor: Scott James Thompson , Rajit Johri , Jason Meyer , Francis Connolly , Minku Lee , Justin Panhans , Bradley Dean Riedle , Arun Sebastian , Ameya Gadre , Corey James Blue , Andrew Burt
Abstract: A hybrid vehicle includes an electric machine, an engine selectively coupled to the electric machine by a disconnect clutch, and a controller. The controller is programmed to, in response to a change in the driver-demanded torque necessitating starting of the engine: determine a state of driving (SOD) based on the change in driver-demanded torque, wherein the SOD is indicative of a desired responsiveness of the vehicle, and the desired responsiveness increases as SOD increases; command a speed target to the engine equal to a predicted motor speed associated with the driver-demanded torque plus an offset that is based on the SOD; and command a capacity to the disconnect clutch at a rate and a magnitude based on the SOD.
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公开(公告)号:US20210171014A1
公开(公告)日:2021-06-10
申请号:US16706022
申请日:2019-12-06
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor: Corey James Blue , Minku Lee , Scott James Thompson , Bradley Dean Riedle
Abstract: A vehicle includes an engine having a crankshaft, an electric machine having a rotor, a disconnect clutch having an input secured to the crankshaft and an output secured to the rotor, a hydraulic pump mechanically powered via rotation of the rotor and configured to supply hydraulic fluid to the actuate the disconnect clutch, a torque converter having an impeller secured to the rotor, and controller. The controller is programmed to, responsive to a speed of the impeller decreasing to less than a first threshold, which is indicative of a subsequent shutdown of the hydraulic pump, and responsive to the disconnect clutch being open while the engine is shut down, advance the disconnect clutch to a touch point where opposing sides of disconnect clutch make contact but substantially zero power is transferred between the engine and the electric machine.
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