Patents by Inventor Hongtei Tseng
Hongtei Tseng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9475496Abstract: A vehicle includes at least one autonomous driving sensor configured to monitor at least one condition while operating in an autonomous mode. The vehicle further includes a processing device configured to identify at least one occupant, select a profile associated with the occupant, and autonomously operate at least one subsystem according to the selected profile and the at least condition monitored by the at least one autonomous driving sensor.Type: GrantFiled: November 22, 2013Date of Patent: October 25, 2016Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Christopher Attard, Shane Elwart, Jeff Allen Greenberg, Rajit Johri, Devinder Singh Kochhar, Douglas Scott Rhode, John Shutko, Eric Hongtei Tseng
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Publication number: 20160281616Abstract: A method of operating a vehicle includes measuring a transmission output torque, measuring impeller and turbine speeds, estimating a transmission component torque, and adjusting an engine torque to avoid overstressing a transmission component such as a gear. The method does not rely on an accurate estimate of engine torque. Furthermore, the method does not rely on a fixed transmission torque rating in each gear ratio.Type: ApplicationFiled: March 25, 2015Publication date: September 29, 2016Inventors: Rohit Hippalgaonkar, Joseph F. Kucharski, Yuji Fujii, Gregory Michael Pietron, Jason Meyer, Eric Hongtei Tseng
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Publication number: 20160281846Abstract: A method of operating a transmission includes measuring an output torque, estimating a gearbox input torque using a model, and estimating gearbox component torques based on a detailed gearbox model. The model used to estimate the input torque varies depending on whether a torque converter is locked, open, or slipping. In some operating conditions, multiple estimates are available for gearbox input torque, impeller torque, or shift element torque in which case the models are adapted. When an estimated component torque is outside an expected range, a warning flag is raised and diagnostic data is saved. When an estimated torque approaches or exceeds a torque limit, the input torque command may be reduced to prevent component damage. A warning flag may also be raised and diagnostic data saved in response to a model parameter being adapted to a value outside of a predetermined range.Type: ApplicationFiled: March 25, 2015Publication date: September 29, 2016Inventors: Rohit Hippalgaonkar, Eric Hongtei Tseng, Yuji Fujii, Gregory Michael Pietron, James William Loch McCallum, Jason Meyer, Michael John Leads, Joseph F. Kucharski
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Publication number: 20160195451Abstract: A bench test calibration method for generating wet clutch torque transfer functions includes obtaining in-vehicle clutch torques at a set of shift conditions; performing a series of bench tests at various clutch pack clearances and lubrication oil flow rates at the set of shift conditions; adjusting clutch pack clearances and lubrication oil flow rates during the series of bench tests in response to a difference between a bench test measured clutch torques and the corresponding in-vehicle clutch torques exceeding a threshold; and recording relationships between first bench test measured torques and force profiles of a clutch actuator relative to the adjusted clutch pack clearances and lubrication oil flow rates for each of the set of shift conditions as a first transfer function.Type: ApplicationFiled: March 11, 2016Publication date: July 7, 2016Inventors: Yuji FUJII, Gregory Michael PIETRON, Diana YANAKIEV, Eric Hongtei TSENG, Vladimir IVANOVIC, Jau-Wen TSENG
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Patent number: 9340228Abstract: A trailer backup assist system for a vehicle reversing a trailer includes a sensor module adapted to attach to the trailer and generate a trailer yaw rate or a trailer speed. The trailer backup assist system also includes a vehicle sensor system that generates a vehicle yaw rate and a vehicle speed. Further, the trailer backup assist system includes a controller that estimates a hitch angle based on the trailer yaw rate or the trailer speed and the vehicle yaw rate and the vehicle speed in view of a kinematic relationship between the trailer and the vehicle.Type: GrantFiled: October 13, 2014Date of Patent: May 17, 2016Assignee: Ford Global Technologies, LLCInventors: Li Xu, Eric Hongtei Tseng, Thomas Edward Pilutti, Steven Yellin Schondorf, Davor David Hrovat, John P. Joyce
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Publication number: 20160101810Abstract: A trailer backup assist system for a vehicle reversing a trailer includes a sensor module adapted to attach to the trailer and generate a trailer yaw rate or a trailer speed. The trailer backup assist system also includes a vehicle sensor system that generates a vehicle yaw rate and a vehicle speed. Further, the trailer backup assist system includes a controller that estimates a hitch angle based on the trailer yaw rate or the trailer speed and the vehicle yaw rate and the vehicle speed in view of a kinematic relationship between the trailer and the vehicle.Type: ApplicationFiled: October 13, 2014Publication date: April 14, 2016Inventors: Li Xu, Eric Hongtei Tseng, Thomas Edward Pilutti, Steven Yellin Schondorf, Davor David Hrovat, John P. Joyce
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Publication number: 20160047714Abstract: A calibration method includes obtaining in-vehicle measured clutch torques at a set of shift conditions; performing a series of bench tests at various clutch pack clearances and lubrication oil flow rates at the set of shift conditions; adjusting clutch pack clearances and lubrication oil flow rates during the series of bench tests in response to a difference between a bench test measured clutch torques and the corresponding in-vehicle measured clutch torques exceeding a threshold; and recording relationships between first bench test measured torques and force profiles of a clutch actuator relative to the adjusted clutch pack clearances and lubrication oil flow rates for each of the set of shift conditions as a first transfer function in response to the difference between the first bench test measured clutch torques and the in-vehicle clutch torques not exceeding the threshold for each of the set of shift conditions.Type: ApplicationFiled: October 28, 2015Publication date: February 18, 2016Inventors: Yuji FUJII, Gregory Michael PIETRON, Diana YANAKIEV, Eric Hongtei TSENG, Vladimir IVANOVIC, Jau-Wen TSENG
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Patent number: 9115803Abstract: Systems and methods for operating and interfacing to a transmission of a vehicle are presented. In one example, a human machine interface allows a driver to assign gear ratios or simulated gear ratios to gear position slots of a shifter. The assignment of gear ratios to gear position slots of a shifter may allow a driver to experience the feeling of driving a manually shifted transmission without having to operate a clutch.Type: GrantFiled: August 28, 2013Date of Patent: August 25, 2015Assignee: Ford Global Technologies, LLCInventors: Yuji Fujii, Marvin Paul Kraska, Jeffrey Allen Doering, Alex O'Connor Gibson, Joseph F. Kucharski, Gregory Michael Pietron, Eric Hongtei Tseng
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Publication number: 20150149017Abstract: A vehicle operator is identified. Based at least in part on the operator's identity, one or more parameters are determined specifying a mode for autonomously operating the vehicle. The vehicle is autonomously operated at least in part according to the one or more parameters.Type: ApplicationFiled: November 22, 2013Publication date: May 28, 2015Applicant: Ford Global Technologies, LLCInventors: Christopher Attard, Shane Elwart, Jeff Allen Greenberg, Rajit Johri, John P. Joyce, Devinder Singh Kochhar, Douglas Scott Rhode, John Shutko, Louis Tijerna, Eric Hongtei Tseng, Wilford Trent Yopp
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Publication number: 20150149023Abstract: A vehicle includes at least one autonomous driving sensor configured to monitor at least one condition while operating in an autonomous mode. The vehicle further includes a processing device configured to identify at least one occupant, select a profile associated with the occupant, and autonomously operate at least one subsystem according to the selected profile and the at least condition monitored by the at least one autonomous driving sensor.Type: ApplicationFiled: November 22, 2013Publication date: May 28, 2015Applicant: Ford Global Technologies, LLCInventors: Christopher Attard, Shane Elwart, Jeff Allen Greenberg, Rajit Johri, Devinder Singh Kochhar, Douglas Scott Rhode, John Shutko, Eric Hongtei Tseng
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Patent number: 9028365Abstract: A method of controlling a multiple step downshift is disclosed. Two offgoing shift elements are released and two oncoming shift elements are engaged to complete the downshift. During a first phase of the downshift, one of the offgoing shift elements controls the rate of increase of input shaft speed. During a second phase of the downshift, one of the oncoming shift elements controls the rate of increase of the input shaft speed. The method computes target torque capacities such that output torque and input shaft acceleration are continuous during the transition between phases. Furthermore, the method computes target torque capacities such that both oncoming clutches reach zero relative speed simultaneously as the input shaft reaches the final speed ratio.Type: GrantFiled: March 13, 2013Date of Patent: May 12, 2015Assignee: Ford Global Technologies, LLCInventors: Diana Yanakiev, Vladimir Ivanovic, Bradley Dean Riedle, Eric Hongtei Tseng
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Patent number: 8996249Abstract: A method for controlling an active suspension is disclosed. The method includes steps of determining a dimension of a road abnormality ahead of the vehicle; comparing the dimension with a vehicle dimension; responsive to the comparison, classifying the abnormality as one type of a plurality of predetermined types; responsive to a dimension of the abnormality, further classifying the abnormality as having a severity of one type of a plurality of predetermined types; and controlling the suspension responsive to the abnormality type and severity type.Type: GrantFiled: July 21, 2014Date of Patent: March 31, 2015Assignee: Ford Global Technologies, LLCInventors: Jianbo Lu, Dimitar P. Filev, Davor Hrovat, Eric Hongtei Tseng, Uwe Hoffmann, Simon Baales, Michael Seeman
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Patent number: 8990000Abstract: A method for estimating a location of a center of gravity (CG) of a sprung mass of a vehicle includes steps of a) determining whether the vehicle is stationary or moving; b) if the vehicle is stationary, calculating estimated x and y coordinates of the CG; c) storing the estimated coordinates in memory; and d) repeating steps a)-c) until the vehicle is no longer stationary.Type: GrantFiled: April 23, 2013Date of Patent: March 24, 2015Assignee: Ford Global Technologies, LLCInventors: Doug S. Rhode, Jianbo Lu, Eric Hongtei Tseng, Dimitar Petrov Filev, Davor Hrovat, David Michael Russell, Uwe Hoffmann, Peter W. A. Zegelaar, Moshen Lakehal-ayat, Michael Seemann, Simon Baales
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Publication number: 20150066316Abstract: Systems and methods for operating and interfacing to a transmission of a vehicle are presented. In one example, a human machine interface allows a driver to assign gear ratios or simulated gear ratios to gear position slots of a shifter. The assignment of gear ratios to gear position slots of a shifter may allow a driver to experience the feeling of driving a manually shifted transmission without having to operate a clutch.Type: ApplicationFiled: August 28, 2013Publication date: March 5, 2015Applicant: Ford Global Technologies, LLCInventors: Yuji Fujii, Marvin Paul Kraska, Jeffrey Allen Doering, Alex O`Connor Gibson, Joseph F. Kucharski, Gregory Michael Pietron, Eric Hongtei Tseng
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Publication number: 20140330483Abstract: A method for controlling an active suspension is disclosed. The method includes steps of determining a dimension of a road abnormality ahead of the vehicle; comparing the dimension with a vehicle dimension; responsive to the comparison, classifying the abnormality as one type of a plurality of predetermined types; responsive to a dimension of the abnormality, further classifying the abnormality as having a severity of one type of a plurality of predetermined types; and controlling the suspension responsive to the abnormality type and severity type.Type: ApplicationFiled: July 21, 2014Publication date: November 6, 2014Applicant: Ford Global Technologies, LLCInventors: Jianbo Lu, Dimitar P. Filev, Davor Hrovat, Eric Hongtei Tseng, Uwe Hoffmann, Simon Baales, Michael Seeman
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Publication number: 20140316637Abstract: A method for estimating a location of a center of gravity (CG) of a sprung mass of a vehicle includes steps of a) determining whether the vehicle is stationary or moving; b) if the vehicle is stationary, calculating estimated x and y coordinates of the CG; c) storing the estimated coordinates in memory; and d) repeating steps a)-c) until the vehicle is no longer stationary.Type: ApplicationFiled: April 23, 2013Publication date: October 23, 2014Applicant: Ford Global Technologies, LLCInventors: Doug S. Rhode, Jianbo Lu, Eric Hongtei Tseng, Dimitar Petrov Filev, Davor Hrovat, David Michael Russell, Uwe Hoffmann, Peter W.A. Zegelaar, Moshen Lakehal-ayat, Michael Seemann, Simon Baales
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Publication number: 20140274559Abstract: A method of controlling a multiple step downshift is disclosed. Two offgoing shift elements are released and two oncoming shift elements are engaged to complete the downshift. During a first phase of the downshift, one of the offgoing shift elements controls the rate of increase of input shaft speed. During a second phase of the downshift, one of the oncoming shift elements controls the rate of increase of the input shaft speed. The method computes target torque capacities such that output torque and input shaft acceleration are continuous during the transition between phases. Furthermore, the method computes target torque capacities such that both oncoming clutches reach zero relative speed simultaneously as the input shaft reaches the final speed ratio.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Diana Yanakiev, Vladimir Ivanovic, Bradley Dean Riedle, Eric Hongtei Tseng
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Publication number: 20140244120Abstract: A vehicle having a drivetrain is controlled based on a difference between a torque transmitted by the drivetrain when the vehicle has constant non-zero speed and the torque transmitted by the drivetrain when the vehicle is accelerating. The drivetrain torque may be measured by a drivetrain torque sensor. The effective vehicle mass is computed from the torque difference. The computed mass of the vehicle is used to adjust the activation of a collision warning system or a collision avoidance system. A method of operating a vehicle where the activation of a collision avoidance system is adjusted based on a difference between a torque transmitted by a drivetrain when the vehicle has constant non-zero speed and the torque transmitted by the drivetrain when the vehicle is accelerating is disclosed. The torque difference is used to compute a vehicle mass that is used to adjust a collision warning distance.Type: ApplicationFiled: February 28, 2013Publication date: August 28, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yuji Fujii, Nimrod Kapas, Joseph F. Kucharski, Diana Yanakiev, Eric Hongtei Tseng, Jianbo Lu, Gregory Michael Pietron
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Patent number: 8788146Abstract: A method for controlling an active suspension includes steps of determining a dimension of a road abnormality ahead of the vehicle and comparing the dimension with a vehicle dimension. Responsive to the comparison, the abnormality is classified as one type of a plurality of predetermined types. Responsive to a height dimension of the abnormality, the abnormality is further classified as having one of a small, medium, or large severity. The suspension is controlled responsive to the type and severity.Type: GrantFiled: January 8, 2013Date of Patent: July 22, 2014Assignee: Ford Global Technologies, LLCInventors: Jianbo Lu, Dimitar P. Filev, Davor Hrovat, Eruc Hongtei Tseng, Uwe Hoffmann, Simon Baales, Micheal Seemann
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Publication number: 20140195112Abstract: A method for controlling an active suspension includes steps of determining a dimension of a road abnormality ahead of the vehicle and comparing the dimension with a vehicle dimension. Responsive to the comparison, the abnormality is classified as one type of a plurality of predetermined types. Responsive to a height dimension of the abnormality, the abnormality is further classified as having one of a small, medium, or large severity. The suspension is controlled responsive to the type and severity.Type: ApplicationFiled: January 8, 2013Publication date: July 10, 2014Applicant: Ford Global Technologies, LLCInventors: Jianbo Lu, Dimitar P. Filev, Davor Hrovat, Eruc Hongtei Tseng, Uwe Hoffmann, Simon Baales, Micheal Seemann