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公开(公告)号：US10399440B2
公开(公告)日：2019-09-03
申请号：US15624382
申请日：2017-06-15
Applicant: Ford Global Technologies, LLC
Inventor： Yanan Zhao , Ming Lang Kuang , Xiaoyong Wang , Dale Scott Crombez , Walter Joseph Ortmann
IPC: B60W20/14 , B60L7/26 , B60L7/18 , B60T8/1761 , B60T1/10
Abstract: Methods and systems are provided for operating a hybrid vehicle during operating conditions where vehicle braking is requested. In one example, regenerative braking is permitted during conditions of wheel slip so that a greater portion of a vehicle's kinetic energy may be recovered and stored as electrical energy. Additionally, in some examples, the amount of regenerative braking is adjusted responsive to a torque of a differential clutch during wheel slip conditions.
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公开(公告)号：US10315506B2
公开(公告)日：2019-06-11
申请号：US14105841
申请日：2013-12-13
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Matthew Allan Herrmann , Qing Wang , Ming Lang Kuang , Ryan Abraham McGee
Abstract: A method of operating a vehicle having a continuously variable transmission to simulate a step-ratio transmission. The method includes increasing an output torque based on a modified accelerator pedal position in response to a corresponding virtual gear selection. An initial virtual gear is determined or selected from a predetermined finite number of available virtual gears based on an accelerator pedal position, a vehicle speed, and whether an upshift or downshift has been requested. The engine speed and engine torque are controlled to meet driver expectations of increased or decreased engine speed or vehicle output torque.
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公开(公告)号：US10220833B2
公开(公告)日：2019-03-05
申请号：US15476297
申请日：2017-03-31
Applicant: Ford Global Technologies, LLC
Inventor： Chen Zhang , Jason Meyer , Bernard D. Nefcy , Ming Lang Kuang
IPC: B60W20/40 , B60L11/02 , B60K6/48 , B60W30/18 , B60L7/10 , B60W10/06 , B60W10/08 , B60W30/188 , B60W10/02
Abstract: A vehicle powertrain includes a controller, a torque converter, and an engine and electric machine coupled by a clutch. The torque converter may be configured to couple the electric machine to an output shaft. The controller may be programed to generate a command for the electric machine to output torque to drive the torque converter toward a desired rotational speed, and to modify the command according to a difference between the desired rotational speed and an actual rotational speed to reduce the difference, wherein values of the difference are limited by thresholds that change with powertrain operation.
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公开(公告)号：US20190031173A1
公开(公告)日：2019-01-31
申请号：US15662926
申请日：2017-07-28
Applicant: Ford Global Technologies, LLC
Inventor： Chen Zhang , Mark Steven Yamazaki , Yanan Zhao , Ming Lang Kuang
IPC: B60W10/08
Abstract: A table of engine torque correction factors is used to compensate for noise factors. In a hybrid vehicle, the motor is used to measure engine torque during periods of constant transmission input shaft torque. By comparing the measured input torque to the requested engine torque, a controller can update the table of correction factors to compensate for changes in the noise factors. A service procedure may be implemented that systematically provides the controller an opportunity to update many values in the table.
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公开(公告)号：US10107390B2
公开(公告)日：2018-10-23
申请号：US15258541
申请日：2016-09-07
Applicant: Ford Global Technologies, LLC
Inventor： Yanan Zhao , Bernard D. Nefcy , Ming Lang Kuang
Abstract: A vehicle may include a controller configured to, in response to an accelerator pedal release and an expected regenerative braking event, increase an engagement pressure of a torque converter clutch prior to occurrence of the event to a threshold that is based on a regenerative braking torque estimate associated with the event such that during the event, the clutch transfers more torque than the converter.
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Patent Agency Ranking
公开(公告)号：US10106150B2
公开(公告)日：2018-10-23
申请号：US15457860
申请日：2017-03-13
Applicant: Ford Global Technologies, LLC
Inventor： Walter Joseph Ortmann , Yanan Zhao , Ming Lang Kuang
Abstract: Methods and systems are provided for operating a driveline of a hybrid vehicle that includes an internal combustion engine, an electric machine, and a transmission are described. In one example, gears of a transmission may be unlocked from layshafts while an engine is stopped to conserve energy. Alternatively, the gears may be locked and unlocked from layshafts in response to vehicle operating conditions while the engine is stopped to improve driveline response.
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公开(公告)号：US10065636B2
公开(公告)日：2018-09-04
申请号：US15190635
申请日：2016-06-23
Applicant: Ford Global Technologies, LLC
Inventor： Scott Varnhagen , Ming Lang Kuang
Abstract: A vehicle and associated method for calculating tire saturation is provided. The method may include the stability control computer calculating slip ratio and longitudinal force for the tire, calculating tire longitudinal stiffness by dividing longitudinal force by slip ratio, calculating tire saturation from tire longitudinal stiffness, and the stability control computer altering dynamic control of the vehicle based on calculated tire saturation. The stability control computer may calculate tire saturation from a tire saturation membership function which includes a first tire longitudinal stiffness value representing an unsaturated tire, a second tire longitudinal stiffness value representing a saturated tire, and a function line connecting the first tire longitudinal stiffness value to the second tire longitudinal stiffness value.
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公开(公告)号：US20180066753A1
公开(公告)日：2018-03-08
申请号：US15258541
申请日：2016-09-07
Applicant: Ford Global Technologies, LLC
Inventor： Yanan Zhao , Bernard D. Nefcy , Ming Lang Kuang
CPC classification number: F16H61/143 , B60K6/38 , B60L7/16 , B60L15/2009 , B60L15/2018 , B60L2240/14 , B60L2240/642 , B60W10/026 , B60W20/00 , B60Y2300/18125 , F16H59/18 , F16H59/60
Abstract: A vehicle may include a controller configured to, in response to an accelerator pedal release and an expected regenerative braking event, increase an engagement pressure of a torque converter clutch prior to occurrence of the event to a threshold that is based on a regenerative braking torque estimate associated with the event such that during the event, the clutch transfers more torque than the converter. The regenerative braking torque estimate may be based on a difference between an average road grade and a current road grade. The regenerative braking torque estimate may be based on a headway range and a rate of change thereof. The regenerative braking torque estimate may be based on a predicted deceleration rate.
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公开(公告)号：US09827980B2
公开(公告)日：2017-11-28
申请号：US14076317
申请日：2013-11-11
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Mark Steven Yamazaki , Wei Liang , Xiaoyong Wang , Rajit Johri , Ryan Abraham McGee , Ming Lang Kuang
IPC: B60L9/00 , B60W20/40 , B60W10/02 , B60W10/06 , B60W10/26 , B60W30/188 , B60K6/387 , B60K6/547 , B60W10/08 , B60W10/184 , B60W30/18 , B60W20/10 , B60K6/48
CPC classification number: B60W20/40 , B60K6/387 , B60K6/547 , B60K2006/4825 , B60W10/02 , B60W10/06 , B60W10/08 , B60W10/184 , B60W10/26 , B60W20/10 , B60W30/18027 , B60W30/188 , B60W2510/244 , B60W2530/10 , B60W2530/16 , B60W2530/22 , B60W2540/12 , B60W2540/16 , B60W2710/021 , B60W2710/0666 , B60W2710/244 , Y02T10/6252 , Y02T10/6286 , Y10S903/93
Abstract: A hybrid electric vehicle includes an engine and an electric machine, both capable of providing propulsion power. A clutch is configured to selectively couple the engine to the electric machine. At times, the vehicle may be subject to excessive loads, such as a large amount of weight in the vehicle or the vehicle towing another object. At least one controller is programmed to engage the clutch and start the engine in response to a load of the vehicle exceeding a predetermined threshold and a release of the brake pedal while the vehicle is stopped and in drive. This increases available engine torque prior to vehicle launch in anticipation of an upcoming acceleration demand.
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公开(公告)号：US09809214B2
公开(公告)日：2017-11-07
申请号：US14705314
申请日：2015-05-06
Applicant: Ford Global Technologies, LLC
Inventor： Wei Liang , Yanan Zhao , Ming Lang Kuang
CPC classification number: B60W20/12 , B60K6/48 , B60W10/06 , B60W10/08 , B60W2510/244 , B60W2550/402 , Y02T10/6221 , Y02T10/6269 , Y02T10/6286 , Y10S903/93
Abstract: A vehicle includes an engine and at least one controller. A first engine cycling command based on route information and a second engine cycling command independent of route information are generated. The engine transitions state according to the first engine cycling command when the second engine cycling command permits the transition. When a first engine cycling profile based on route information includes at least a number of engine cycles, the engine is cycled according to the first engine cycling profile, otherwise, the engine is cycled according to an engine cycling state derived independent of route information. The vehicle includes a traction battery. A state of charge of the traction battery is controlled according to a target state of charge that is derived using route information and a base battery power reference that is independent of route information.
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