Model Or Learning Means (e.g., Neural Network) Patents (Class 701/59)
  • Patent number: 10393880
    Abstract: A method is disclosed for managing rules or policies in a vehicle having a controllable unit. The method may include determining, at the start of a driving, an active route of the vehicle, selecting a set of control values from multiple stored sets of control values, where one control value of the set of control values corresponds to one predetermined interval of the determined active route, and controlling the at least one controllable unit based on the selected set of control values. The method may also include recording, during the current driving of the vehicle, a set of control result values, where one control result value corresponds to a predetermined interval of the determined active route which the vehicle has driven and, at the end of the driving based on the set of control result values, determining and storing an updated set of control values for the actually driven route.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: August 27, 2019
    Assignee: Volvo Car Corporation
    Inventors: Rickard Arvidsson, Niklas Akerblom
  • Patent number: 10253725
    Abstract: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a nozzle scheduler for determining an exhaust nozzle position goal based on a nozzle schedule of exhaust nozzle positions related to flight conditions. The control system may further include a control module for determining a control command for the gas turbine engine. The control command may include, at least, a fuel flow command and an exhaust nozzle position command and the control command may be based on, at least, the exhaust nozzle position goal and an estimated thrust value. The control system may further include an actuator for controlling the gas turbine engine based on the control command.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: April 9, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Chaohong Cai, Timothy J. Crowley, Mark E. Lacour, David L. Ma
  • Patent number: 9899018
    Abstract: An apparatus and system for addressing road noise are provided. The apparatus is configured to determine at least one from among a location of a vehicle and a noise feature of a road on which the vehicle is traveling, retrieve road noise cancellation information based on the determined at least one from among the location of the vehicle and the noise feature of the road on which the vehicle is traveling, and output a signal to cancel road noise based on the road noise cancellation information. The apparatus may be installed in vehicle to address road noise heard by occupants of the vehicle.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Frank C Valeri, Christophe A Stirlen, Scott M. Reilly
  • Patent number: 9765703
    Abstract: A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint control module generates air and exhaust setpoints for the spark ignition engine based on the second torque request. A model predictive control (MPC) module identifies sets of possible target values based on the air and exhaust setpoints, generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively, selects one of the sets of possible target values based on the predicted parameters, and sets target values based on the possible target values of the selected one of the sets. A throttle actuator module controls opening of a throttle valve based on a first one of the target values.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: September 19, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher E. Whitney, Kevin C. Wong, Paul R. Nahra, Julian R. Verdejo
  • Patent number: 9279461
    Abstract: A coupling device system for use in a motor vehicle is provided including a coupling device and a memory chip. The coupling device has an input member, an output member, and at least one modulating clutch assembly selectively coupling the input member to the output member. The modulating clutch assembly includes an electrical clutch operator and clutch plates. The clutch plates include at least one first clutch plate coupled to the input member and at least one second clutch plate coupled to the output member. The second clutch plate is disposed adjacent the first clutch plate. The memory chip is integrated with the coupling device and is configured to store data related to a measured characteristic of the coupling device. The memory chip is also configured to communicate with a vehicle controller. A method of providing a calibration curve of the coupling device to the vehicle controller is also disclosed.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: March 8, 2016
    Assignee: BorgWarner Inc.
    Inventors: Brian E. Leising, Phillip Wood, Ryan M. True
  • Patent number: 9145968
    Abstract: A device for controlling shift in a vehicle may include a data detector configured to detect data for a shift control and a controller configured to determine a short-term driving tendency of a driver using the data, determine a long-term driving tendency of the driver using the short-term driving tendency of the driver, and control shift in the vehicle in consideration of a running mode of the vehicle and the long-term driving tendency which are determined from the data.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: September 29, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Byeong Wook Jeon, Joseph D. Chang, Dong Hoon Jeong
  • Patent number: 9070235
    Abstract: An apparatus and a method determines a short-term driving tendency. The apparatus may include a driving information collecting unit configured to collect driving information for determining the short-term driving tendency, a short-term driving tendency calculating module configured to receive input variables for determining the short-term driving tendency and calculate a short-term driving tendency index using a fuzzy control theory, and a calculation prohibition control module configured to check an accelerator position sensor (APS) signal of the vehicle and prohibit calculation of the short-term driving tendency index when an APS opening degree is equal to or less than a predetermined reference value.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: June 30, 2015
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Byeong Wook Jeon, Dong Hoon Jeong
  • Patent number: 9026328
    Abstract: A transmission controller increases an indicated hydraulic pressure to a starting frictional engagement element to a normal hydraulic pressure, causes a hydraulic piston to stroke and executes a learning control of the indicated hydraulic pressure so that a time until the starting frictional engagement element starts generating a transmission capacity after the range is switched from the neutral range to the drive range becomes a target time when a range is switched from a neutral range to a drive range. The transmission controller further detects a driver's starting intention and increases the indicated hydraulic pressure to the starting frictional engagement element to a starting time hydraulic pressure higher than the normal hydraulic pressure and prohibits the learning control if the starting intention is detected before the starting frictional engagement element starts generating the transmission capacity.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: May 5, 2015
    Assignee: Jatco Ltd
    Inventor: Hiromichi Akebono
  • Publication number: 20150120156
    Abstract: A method of controlling a dual-clutch transmission having two partial transmissions that can be connected to a drive engine such that a target gear, in a respective load-free partial transmission to be engaged following the currently active gear, can be preselected. To reduce the energy consumption caused by transmission losses, the method includes the steps of: determining a possible target gear, determining overall transmission losses for both when a target gear is preselected, and when a target gear is not preselected, determining whether the overall transmission loss is greater when a target gear is preselected or when no gear is preselected, deciding whether a target gear should or should not be preselected using the overall transmission loss determined as a criterion, and implementing measures that correspond to the decision reached.
    Type: Application
    Filed: May 2, 2013
    Publication date: April 30, 2015
    Inventors: Thorsten Leim, Carolin Heller
  • Patent number: 9020716
    Abstract: A control device for a vehicle drive device that includes a drive source that outputs a drive force for running and an automatic transmission that has multiple speeds, the control device includes: a blipping control device that performs blipping control in which an output torque of the drive source is changed irrespective of an accelerator operation when a manual downshift of the automatic transmission is performed, and that changes a timing to perform next blipping control in a learning manner on the basis of an undershoot amount of a turbine speed at start of shifting of the automatic transmission.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: April 28, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Ota, Hitoshi Matsunaga
  • Publication number: 20150105988
    Abstract: The automatic transmission includes a first friction engagement element which is engaged when a first gear position is realized and disengaged when a second gear position is realized, a second friction engagement element which is engaged when the second gear position is realized and disengaged when the first gear position is realized, and a controller. The controller causes the second friction engagement element to slip by decreasing an instructional pressure for the second friction engagement element while running in the second gear position, and learns an engagement start pressure of the first friction engagement element based on a change in a differential rotation of the second friction engagement element, or in a parameter that changes in accordance with the differential rotation, at a time when an instructional pressure for the first friction engagement element is increased during the slip.
    Type: Application
    Filed: February 21, 2013
    Publication date: April 16, 2015
    Applicants: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Takuichiro Inoue, Hiroyasu Tanaka, Mamiko Inoue, Seiichiro Takahashi
  • Patent number: 8996265
    Abstract: A control device of a hybrid vehicle includes an engine and an electric motor, a clutch, and an automatic transmission. The motor is the only drive power source when the clutch is released. The control device is configured such that when a request for increasing drive torque while the motor is running is made, if start control of the engine and downshift control of the automatic transmission overlap, clutch engagement completion is a starting point to start a rotational change of an input rotation speed of the transmission toward a synchronous rotation speed after a shift, and a transmission torque capacity during the downshift control in the transmission until engagement completion of the clutch being set equal to or greater than an input torque of the transmission during the motor running and less than an input torque of the transmission at the time of engagement completion of the clutch.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: March 31, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobufusa Kobayashi, Hideaki Otsubo
  • Patent number: 8996263
    Abstract: An electronic controller for a variable ratio transmission and an electronically controllable variable ratio transmission including a variator or other CVT are described herein. The electronic controller can be configured to receive input signals indicative of parameters associated with an engine coupled to the transmission. The electronic controller can also receive one or more control inputs. The electronic controller can determine an active range and an active variator mode based on the input signals and control inputs. The electronic controller can control a final drive ratio of the variable ratio transmission by controlling one or more electronic solenoids that control the ratios of one or more portions of the variable ratio transmission.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: March 31, 2015
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Stanley B. Quinn, Jr., Alan L. Miller, Scott R. Anderson
  • Patent number: 8983743
    Abstract: A variable control apparatus and method determines a short-term driving tendency. The apparatus may include a driving information collecting unit configured to collect driving information for determining a driving tendency, a first short-term driving tendency calculating module configured to calculate a first short-term driving tendency index using a fuzzy control theory based on an inputted opening degree of an accelerator pedal position sensor (APS), a second short-term driving tendency calculating module configured to calculate a second short-term driving tendency index using the fuzzy control theory based on an inputted forward vehicle relative speed, and a control module configured to calculate a final short-term driving tendency index by differentially applying weight values of the first short-term driving tendency index and the second short-term driving tendency index for each vehicle speed.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: March 17, 2015
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Byeong Wook Jeon, Dong Hoon Jeong
  • Patent number: 8965644
    Abstract: A system and a method of controlling shifting for a vehicle includes a data detector detecting data for a shift control, a road condition determiner determining a road condition based on the data, a short term driving tendency determiner determining a short term driving tendency of a driver based on the data, and a long term driving tendency determiner determining a long term driving tendency of the driver based on the short term driving tendency of the driver. An optimal driving mode determiner determines an optimal driving mode based on the road condition, the short term driving tendency of the driver, and the long term driving tendency of the driver, wherein the system controls shifting according to the optimal driving mode determined by the optimal driving mode determiner.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: February 24, 2015
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Byeong Wook Jeon, Heeyong Lee
  • Patent number: 8965664
    Abstract: A controller for a plant that controls a controlled variable for the plant in accordance with estimated values, allowing to reduce any error in the estimated values that is caused by solid variation or aging of the plant. A controller for an exhaust emission control system has an estimated Inert-EGR value calculation section (711) to calculate the estimated value IEGRHAT for the Inert-EGR amount on the basis of an input vector U through a neural network, an estimated LAF sensor output value calculation section (712) to calculate the estimated value ?HAT for an exhaust air-fuel ratio correlating with the Inert-EGR amount on the basis of the input vector U through the neural network, an LAF sensor (34) to detect the exhaust air-fuel ratio, and a nonlinear adaptive corrector (713) to calculate the adaptive input UVNS such that the estimated error EHAT between the detected value ?ACT from the LAF sensor (34) and the estimated output value ?HAT of the LAF sensor (34) is minimized.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: February 24, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yuji Yasui, Koichi Nakajima, Michael Fischer
  • Patent number: 8938339
    Abstract: A method of actuating an assembly of a transmission, with which are associated a plurality of actuators with whose help the assembly can in principle be actuated, such that out of the actuators available in principle for actuation, a control unit selects at least one actuator for the actual actuation and activates the selected actuator with an output signal in such manner that a status parameter of the actuated assembly corresponds to or follows a control-side nominal value, such that out of the actuators available in principle for actuating the assembly, the control unit selects at least one actuator for the actual actuation of the assembly in such manner that, for all the actuators available in principle for actuating the assembly over the operating life of the transmission, the extent of their utilization is approximately uniform.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: January 20, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Peter Herter, Rupert Kramer
  • Patent number: 8930079
    Abstract: A vehicle steering system includes an automatic steering control unit configured to control the vehicle steering system when in an automatic operational state and a driver intervention unit is configured to determine driver intervention during the automatic operational state. The driver intervention unit comprising a decision software module configured to determine driver intervention.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: January 6, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Yong H. Lee, Jihan Ryu, Weiwen Deng
  • Patent number: 8930099
    Abstract: In a control apparatus for an automatic transmission, it is configured to calculate a change amount (?NC estimation value) of an output rotational speed of the transmission (S10); calculate an average (I phase initial average G) of the change amount of the output rotational speed over a predetermined period of an initial inertia (I) phase of shifting; calculate an average (after-shift average G) of a vehicle acceleration after the completion of the shifting, assuming that the change amount of the output rotational speed indicates the vehicle acceleration G; calculate a difference (I phase initial G) between the average of the change amount of the output rotational speed and the average of the vehicle acceleration; incrementally and decrementally correct the desired value of the transmission torque of the frictional engaging element such that the calculated difference falls within a predetermined range; and control supply of hydraulic pressure to the frictional engaging element such that it becomes the correct
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: January 6, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasushi Inagawa, Shintaro Kameda, Atsuhiro Saeki, Takahiro Matsuda, Hidekazu Araki, Hiroyuki Okuda, Yuji Yasui
  • Patent number: 8924110
    Abstract: When a rotational speed of a secondary pulley is less than a first reference value, the disclosed electronic control device implements lower limit hydraulic control to adjust the hydraulic pressure of a primary pulley to be at a lower limit hydraulic pressure. When the rotational speed is equal to or exceeds the first reference value, but is less than a second reference value, the electronic control device implements balanced hydraulic control to adjust the hydraulic pressure to be more than the lower limit hydraulic pressure. When the rotational speed is equal to or exceeds the second reference value, the electronic control device implements feedback control to correct the hydraulic pressure on the basis of the size of the difference between a target transmission gear ratio and a transmission gear ratio, calculated on the basis of rotational speeds detected by each rotational speed sensor.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: December 30, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Taira Iraha, Kunio Hattori
  • Patent number: 8886447
    Abstract: Disclosed is a technique for ranking a driver's fuel efficiency among other drivers based on various variables associated with the environment in which the vehicle is being driven. More particularly, the present invention, selects, as a category, one or more factors affecting fuel efficiency, and, as one or more, variables another one or more. Vehicle data is then collected by a communications device which is associated with a particular trip. Next an average of the fuel efficiencies and an average of the variables for the trip are calculated accordingly the selected one more categories. The fuel efficiency of the trip corresponding to a same category for every coordinate point of the variable is then statistically processed to calculate the average of the fuel efficiency and the standard deviation of the fuel efficiency and regularized (processed as a GAP calculation) to determine the ranking of a vehicle driver.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: November 11, 2014
    Assignees: Hyundai Motor Japan R&D Center, Inc., Hyundai Motor Company, Kia Motors Corporation
    Inventor: Osamu Sawada
  • Patent number: 8880308
    Abstract: A method and system of improving shift event performance in a vehicle with an automatic transmission. One or more accelerometers in the vehicle are used to sense one or more longitudinal acceleration values. The longitudinal acceleration values or values derived therefrom are compared with predetermined stored values. Shift event behavior is changed in response to differences between the one or more longitudinal acceleration values or values derived therefrom and the predetermined stored values.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: November 4, 2014
    Assignee: Chrysler Group LLC
    Inventors: Hussein Dourra, Mircea Gradu, Michael Hall
  • Publication number: 20140324307
    Abstract: A transmission controller increases an indicated hydraulic pressure to a starting frictional engagement element to a normal hydraulic pressure, causes a hydraulic piston to stroke and executes a learning control of the indicated hydraulic pressure so that a time until the starting frictional engagement element starts generating a transmission capacity after the range is switched from the neutral range to the drive range becomes a target time when a range is switched from a neutral range to a drive range. The transmission controller further detects a driver's starting intention and increases the indicated hydraulic pressure to the starting frictional engagement element to a starting time hydraulic pressure higher than the normal hydraulic pressure and prohibits the learning control if the starting intention is detected before the starting frictional engagement element starts generating the transmission capacity.
    Type: Application
    Filed: October 4, 2012
    Publication date: October 30, 2014
    Applicant: JATCO Ltd
    Inventor: Hiromichi Akebono
  • Patent number: 8874336
    Abstract: Featured is are methods and systems for bedding-in an automatic transmission of a vehicle prior to delivery of the vehicle to an end customer. Such a bedding-in method is performed so as to reduce the occurrence of shifting problems or concerns occurring during the initial stages of ownership of the vehicle. More particularly, such a bedding-in method includes providing an automatic transmission having a controller that is configured to measure and learn about powertrain variation(s) and configured to adapt one or more operational parameters associated with shifting of the automatic transmission. Such a method also includes operating the vehicle according to a predetermined protocol before the vehicle reaches an end customer. Such a protocol being established so the transmission controller can learn about powertrain variations and adapt operation of the transmission to minimize effects on shifting of the transmission.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: October 28, 2014
    Assignees: Hyundai America Technical Center, Inc., Kia Motors Corporation, Hyundai Motor Company
    Inventors: Raymond J. Tessier, Jr., Anthony Golletti, Thomas Kieffer
  • Patent number: 8831844
    Abstract: A method of learning the return spring pressure of a clutch in a vehicle having an engine and an automatic transmission includes selecting a clutch for analysis from a plurality of clutches of the transmission when the vehicle coasts for a predetermined duration. The method includes ramping down clutch pressure to the selected clutch until engine speed reaches idle and measuring the clutch pressure for the selected clutch after engine speed has remained at idle for a calibrated duration. An actual return spring pressure may be calculated as a function of the preliminary return spring pressure. The actual return spring pressure may be used thereafter to control a subsequent shift event of the transmission. A vehicle includes an engine, transmission, and controller configured to detect a predetermined coasting condition, and to execute code using a processor to thereby execute the above method. A system includes the transmission and controller.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 9, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Todd J. Thor
  • Patent number: 8818676
    Abstract: An engine control system includes a torque request control module to determine a first engine torque request. An artificial neural network (ANN) torque request module determines a second engine torque request using an ANN model. A torque security check module that selectively generates a malfunction signal based on the difference between the first engine torque request and the second engine torque request.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: August 26, 2014
    Inventors: Jinchun Peng, Timothy J. Hartrey
  • Patent number: 8781697
    Abstract: A target pressure module determines a target pressure for controlling a solenoid of a transmission. An error module determines a pressure error based on a difference between the target pressure and a pressure measured using a pressure sensor. A pressure offset module determines a pressure offset using the target pressure and a mapping of pressure offsets indexed by target pressure. An offset learning module selectively determines a learned pressure offset and selectively updates the mapping based on the learned pressure offset. A pressure command module selectively generates a commanded pressure based on the target pressure, the pressure offset, and the pressure error. A solenoid control module controls actuation of the solenoid based on the commanded pressure.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: July 15, 2014
    Inventors: Paul G. Otanez, Randall B. Dlugoss
  • Patent number: 8768848
    Abstract: At or before time t2 when a kick-down switch was off, the higher speed a shift ratio selected by a driver is for, the smaller value a restriction rate K is set to. Consequently, driving force in a Mid-gear ratio is more restricted than driving force in a Lo-gear ratio. Further, driving force in a Hi-gear ratio is more restricted than driving force in the Mid-gear ratio. At time t2 when the kick-down switch changes from off to on, the restriction on driving force employing a restriction rate K is removed, whereupon an increment ? in driving force in the Hi-gear ratio is, as it had a greater restricted amount during KD OFF, greater than an increment ? in driving force in the Mid-gear ratio. A natural kick-down feeling responsive to the selected shift ratio is thus realized.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: July 1, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Shunsuke Oyama
  • Patent number: 8755969
    Abstract: A bicycle suspension control apparatus includes a user operating device and a control device. The control device is operatively coupled to the user operating device to selectively control a front bicycle suspension between a plurality of operating states and a rear bicycle suspension between a plurality of operating states. The control device is configured to selectively change the operating states of both the front and rear bicycle suspensions to different ones of the operating states in response to a single operation of the user operating device. The control device controls the front and rear bicycle suspensions such that a first operating state change operation of one of the front and rear bicycle suspensions occurs later than a second operating state change operation of the other of the front and rear bicycle suspensions.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: June 17, 2014
    Assignee: Shimano Inc.
    Inventors: Tadashi Ichida, Hideki Ikemoto, Toyoto Shirai
  • Patent number: 8744653
    Abstract: A control apparatus for controlling a transmission apparatus that includes: an input member that is drivably connected to a rotating electrical machine being capable of generating regenerative torque based on an engine and a deceleration request of a vehicle; an output member that is drivably connected to wheels; and a speed change mechanism that has a plurality of friction engagement elements that are controlled to be engaged and released so as to switch a plurality of shift speeds, and that shifts a rotation speed of the input member at one of gear ratios set for the shift speeds and outputs the shifted speed to the output member.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: June 3, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Shigekazu Hase, Hiroya Ueno, Kohei Tsuda, Eiji Moriyama, Hiroshi Tsutsui
  • Patent number: 8738551
    Abstract: A method for storing data in a memory may include when the data may be obtained under a variable condition, determining a cell corresponding to an area of the variable condition from an entire memory area, storing the data in the cell and dividing the cell storing the data into a plurality of cells, and whenever a new data may be obtained under a new variable condition, determining a new cell corresponding to an area of the new variable condition under which the new data may be obtained, from the plurality of cells of the entire memory area and repeating storing of the new data and dividing of the new cell.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: May 27, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Byeong Wook Jeon
  • Patent number: 8738228
    Abstract: A method for tuning a vehicle's performance may include measuring a plurality of parameters representing the vehicle's current handling condition and the vehicle's limit handling condition, determining a margin between the vehicle's current handling condition and limit handling condition, characterizing the driver's dynamic control of the vehicle based on the margin, and altering at least one tunable vehicle performance parameter based on the characterization.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: May 27, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Dimitar Petrov Filev, Jianbo Lu, Kwaku O. Prakah-Asante, Fling Tseng
  • Publication number: 20140088844
    Abstract: A method for determining a shift sequence of a change of transmission ratio of a transmission device of a vehicle drive train is described. The shift sequence is determined depending on an operating state of the vehicle drive train existing upon the actual transmission ratio inserted in the transmission device. The operating state is characterized by various operating state quantities of the vehicle drive train, which represent input quantities of a model representing the vehicle drive train (B2).
    Type: Application
    Filed: March 13, 2012
    Publication date: March 27, 2014
    Applicant: ZF Friedrichshafen AG
    Inventors: Eckehard Münch, Uwe Heitz, Mauro Zanella, Manfred Sieger, Jörg Geis
  • Publication number: 20140088843
    Abstract: A method provides for adapting shifts to be carried out in a transmission of a motor vehicle. The shifts are triggered by a transmission control unit and are is controlled and/or governed by the transmission control unit. An actual value corresponding to an acceleration of the motor vehicle is recorded by measuring instruments and is compared to a corresponding target value. On the basis of a deviation between the actual value and the target value, the carrying out of the subsequent shifts of the transmission control unit is adapted. The actual value corresponding to an acceleration of the motor vehicle is individually recorded for several consecutive shift stages of each shift, whereas the actual value in the individual shift stages is compared to the target value in the individual shift stages of the transmission control unit.
    Type: Application
    Filed: March 20, 2012
    Publication date: March 27, 2014
    Applicant: ZF Friedrichshafen AG
    Inventors: Rudolf Kalthoff, Jörg Kurth, Roland Mair, Thomas Jäger, Florian Schneider
  • Patent number: 8666618
    Abstract: A machine control system for use with a machine having a power source and a transmission is disclosed. The machine control system may have a clutch configured to connect an output of the power source with an input of the transmission. The machine control system may also have a sensors configured to generate signals indicative of machine operations, and a controller in communication with the clutch and the sensors. The controller may be configured to determine the current machine application based on the signals, and vary an actuating force of the clutch based on the type of machine application.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: March 4, 2014
    Assignee: Caterpillar Inc.
    Inventors: Hong-Chin Lin, Rami Nabil Nasrallah
  • Patent number: 8612107
    Abstract: Method, control apparatus and powertrain system controller are provided for real-time, self-learning control based on individual operating style. The method calibrates powertrain system performance in a passenger vehicle in real-time based on individual operating style. The method includes powering the vehicle with the system and generating a sequence of system operating point transitions based on an operating style of an operator of the vehicle during the step of powering. The method further includes learning a set of optimum values of controllable system variables in real-time during the steps of powering and generating based on the sequence of system operating point transitions and predetermined performance criteria for the system. The method still further includes generating control signals based on the set of optimum values to control operation of the system.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: December 17, 2013
    Assignee: The Regents of the University of Michigan
    Inventor: Andreas A. Malikopoulos
  • Patent number: 8612077
    Abstract: A path-dependent control of a hybrid electric vehicle (HEV) includes segmenting an original route into segments. A virtual route based on the remaining portion of the original route is generated once the HEV reaches a current segment of the original route. The virtual route includes a first segment corresponding to the current segment of the original route and a last segment representing at least two other segments of the remaining portion of the original route. Battery SoC set-points for the segments of the virtual route are generated. The vehicle is controlled according to the battery SoC set-point for the first segment of the virtual route as the vehicle travels along the current segment of the original route.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: December 17, 2013
    Assignees: Massachusetts Institute of Technology, Ford Global Technologies, LLC
    Inventors: Anthony Mark Phillips, Georgia-Evangelia Katsargyri, Ming Lang Kuang, Ilya Vladimir Kolmanovsky, John Ottavio Michelini, Munther Abdullah Dahleh, Michael David Rinehart
  • Patent number: 8612100
    Abstract: In accordance with one embodiment a vehicle management and control system can comprise a main computer (200) that can be operatively connected to a plurality of vehicle systems and subsystems, a main operating system (202), a memory (which can be part of the computer), and a memory controller in the form of a master control framework (204). The vehicle management and control system controls the operation of the vehicle by managing all communication between vehicle systems and subsystems, making major decisions on behalf of, and issuing commands to relevant vehicle systems and subsystems based on the import and feedback information it receives from those systems and subsystems. Consequently, the burden of major decision making and inter-system communication is taken off each individual system and subsystem. This allows the construction of each vehicle system and subsystem to be greatly simplified, resulting in an overall reduction of vehicle complexity.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: December 17, 2013
    Inventor: Min Tat Goy
  • Publication number: 20130332038
    Abstract: A method of controlling a transmission includes estimating an expected coefficient of friction of the clutch, estimating a value of an expected torque required to maintain a constant slip of the clutch for a current input torque applied to the transmission, and determining a value of an actual torque applied to the clutch to maintain the constant slip of the clutch at the current input torque. An actual coefficient of friction of the clutch is calculated by dividing the actual torque applied to the clutch by the expected torque applied to the clutch, and multiplying that quotient by the expected coefficient of friction of the clutch. A feed forward torque command is then adjusted based upon the actual coefficient of friction of the clutch to define a revised value of the feed forward torque command, which may then be used to control the clutch for various control operations.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 12, 2013
    Applicant: GM Global Technology Operations LLC
    Inventors: Robert L. Williams, Steven P. Moorman, Matthew D. Whitton
  • Patent number: 8548700
    Abstract: A control system for controlling an automatic transmission that is capable of establishing a given speed stage by engaging a given frictional element. The control system comprises an actual time lag measuring section that measures an actual time lag from the time when a speed change instruction for the given speed stage is issued to the time when a gear ratio of the automatic transmission starts to change for the purpose of establishing the given speed stage, a torque detecting section that detects a torque from an engine, a time lag map that provides a suitable time lag in accordance with the detected torque from the engine, a learning correction section that corrects, by learning control, an instruction value for the hydraulic pressure led to the frictional element in a manner to cause the actual time lag to have the same value as the suitable time lag; and a time lag map correcting section that corrects the suitable time lag in accordance with an operation condition of an associated motor vehicle.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: October 1, 2013
    Assignee: Jatco Ltd
    Inventors: Go Endo, Masami Suzuki
  • Publication number: 20130231832
    Abstract: The present invention utilizes the rotary kinetic power to drive the first transmission device (T101), and is individually installed with the output end transmission devices to the output end of the first transmission device (T101), so as to drive the loading wheel sets installed at the two sides of the common load body (L100), as well as installed with individually controlled output end clutch devices for controlling the driven wheel sets and the wheel shafts to perform engaging transmission or terminating transmission, and between the wheel shafts of the loading wheel sets at two lateral sides of the common load body (L100), a flexibility transmission device is installed, thereby through the flexibility transmission device performing the flexibility transmission with differential rotational speed from the engaging transmission side to the terminating transmission side.
    Type: Application
    Filed: April 11, 2012
    Publication date: September 5, 2013
    Inventor: Tai-Her YANG
  • Publication number: 20130226417
    Abstract: Featured is are methods and systems for bedding-in an automatic transmission of a vehicle prior to delivery of the vehicle to an end customer. Such a bedding-in method is performed so as to reduce the occurrence of shifting problems or concerns occurring during the initial stages of ownership of the vehicle. More particularly, such a bedding-in method includes providing an automatic transmission having a controller that is configured to measure and learn about powertrain variation(s) and configured to adapt one or more operational parameters associated with shifting of the automatic transmission. Such a method also includes operating the vehicle according to a predetermined protocol before the vehicle reaches an end customer. Such a protocol being established so the transmission controller can learn about powertrain variations and adapt operation of the transmission to minimize effects on shifting of the transmission.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Applicants: Hyundai Motor Company, Hyundai America Technical Center, Inc., Kia Motors Corporation
    Inventors: Raymond J. Tessier, JR., Anthony Golletti, Thomas Kieffer
  • Publication number: 20130226418
    Abstract: The present invention utilizes the rotary kinetic power of a rotary kinetic power source to directly drive the epicyclic gear set, or to drive the epicyclic gear set through a transmission device, then a continuous variable transmission (CVT) is individually installed between two output shafts of the epicyclic gear set and the load driven thereby, so the wheel set of the driven load is enabled to randomly perform variation of the driving speed ratio and the driving torque, so as to drive the combined common load; between the output ends of the mentioned two continuous variable transmissions, a limited slip differential or a stabilize device composed of a dual shaft connecting device having slip coupling torque can be further installed according to actual needs.
    Type: Application
    Filed: April 11, 2012
    Publication date: August 29, 2013
    Inventor: Tai-Her YANG
  • Patent number: 8515637
    Abstract: A machine control system may include an input receiving portion configured to receive torque inputs related to a hydrostatic transmission. The input receiving portion may also receive an operator request for actuating the hydrostatic transmission. The machine control system may also include a processor configured to determine a factor based at least in part on the torque inputs, for adjusting the operator request. The processor may also be configured to determine a command for actuating the hydrostatic transmission based on the adjusted operator request, such that a torque load to be exerted on a power source by the hydrostatic transmission is within a desired range. The machine control system may further include an output sending portion configured to send the command to the hydrostatic transmission.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: August 20, 2013
    Assignee: Caterpillar Inc.
    Inventors: Randall T. Anderson, Corwin E. Storer
  • Patent number: 8515635
    Abstract: A method and system provides a Brake Transmission Shift Interlock Override mode in a vehicle including a shift-by-wire transmission. With power applied and ignition on, a driver will press and hold an override switch for a calibrated time. While the override switch is pressed, the driver presses a non-Park button for another calibrated time. The result will be that the vehicle is placed in the selected range wherein the transmission will not automatically shift to Park upon detecting a triggering event. The driver is able to shift the vehicle from Park, even if an electrical failure prevents the transmission from shifting out of Park. As such the vehicle can be driven until the failure is serviced.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: August 20, 2013
    Assignee: Ford Global Technology, LLC
    Inventors: Todd Curtis Spaulding, Brian J Deurloo, Mark Edward Zyskowski, Richard Reynolds Hathaway, Jeffrey James Turnavitch, Christopher Lee Danks, David Spuller, Charles C Poon, Matthew Luke Fyie
  • Patent number: 8510085
    Abstract: A method of constructing a digital model of a road, includes the steps of acquiring a first set of data relating to the geometry of the road via a differential global positioning system (DGPS), acquiring a second set of data relating to the geometry of the road via a hybridized inertial unit with a global positioning system (GPS), indexing the values of the first and second sets of data by determining their confidence level, discarding the values of the first and second sets of data below a predefined confidence level in order to obtain a first and second set of corrected data, and aggregating the data of the first and second sets of corrected data in order to obtain the digital model of the road. The applicable to the fields of road cartography for navigation and road management, for the creation of adaptive localized algorithms.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: August 13, 2013
    Assignee: Nodbox
    Inventors: Thierry Fargas, Dominique Clarac
  • Patent number: 8498790
    Abstract: The driving output of the electric oil pump during an engine automatic stop is learnt by gradually increasing the driving output of the electric oil pump after an engine automatic stop and discriminating a state immediately before engagement on the basis of the behavior of an input shaft rotation number and a turbine rotation number. Thereby, the working oil pressure supplied by the electric oil pump during an engine automatic stop immediately after an engine automatic stop can be made suitable even if a vehicle is in a stopped state without adding an oil pressure sensor and an oil pressure switch, and a vain increase in power consumption, a deterioration of acceleration responsiveness at the time of an engine restart, generation of shock, or a soaring of the number of engine rotations can be prevented.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: July 30, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Michitaka Fujiwara, Tsuneo Tanabe
  • Patent number: 8494730
    Abstract: A power transmitting apparatus includes a clutch that operates based on pressure of a fed fluid to adjust a mode of power transmission of an engine or/and a motor/generator on a power transmission route, a first driving pump that feeds the fluid to the clutch by being driven in accordance with rotation of the motor/generator, and a second driving pump that feeds the fluid to the clutch by being driven in accordance with electric power, wherein a first engagement unit and a second engagement unit can be caused to engage rapidly or slowly by selecting one of the first driving pump and the second driving pump as a source of the fluid, and when a drive request of the clutch is present and a rotation speed of the motor/generator is lower than a predetermined rotation speed, the first engagement unit and the second engagement unit are caused to engage rapidly by feeding the fluid from the second driving pump.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: July 23, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masato Yoshikawa
  • Publication number: 20130151093
    Abstract: A method and system of improving shift event performance in a vehicle with an automatic transmission. One or more accelerometers in the vehicle are used to sense one or more longitudinal acceleration values. The longitudinal acceleration values or values derived therefrom are compared with predetermined stored values. Shift event behavior is changed in response to differences between the one or more longitudinal acceleration values or values derived therefrom and the predetermined stored values.
    Type: Application
    Filed: November 28, 2012
    Publication date: June 13, 2013
    Inventors: Hussein Dourra, Mircea Gradu, Michael Hall
  • Patent number: 8463513
    Abstract: A transmission control apparatus for an automatic transmission to change a shift position automatically includes a cornering-state judging device, a modified shift-up table generator, and a gear-shift controller. The cornering-state judging device is configured to judge whether a vehicle has transitioned to a cornering state from a normal running state. The modified shift-up table generator is configured to generate a modified shift-up table when the vehicle is judged to have transitioned to the cornering state. The modified shift-up table makes a shift-up more difficult to occur than a reference shift-up table does. The gear-shift controller is configured to perform gear-shift control by using the reference shift-up table during the normal running state. The gear-shift controller is configured to suppress a gear shift by using the modified shift-up table instead of the reference shift-up table when the vehicle is judged to have transitioned to the cornering state.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: June 11, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Dai Arai, Hiroyuki Kojima, Yoshiaki Nedachi, Masataka Tanaka, Shigeru Tajima