Time Regulated Operations Patents (Class 701/66)
  • Patent number: 10100827
    Abstract: A fluid device system includes a fluid pump, an electric motor in engagement with the fluid pump, and a controller. The electric motor is adapted for rotation in response to an electric signal. The controller is adapted to communicate the electric signal to the electric motor. The controller includes a lookup table having a plurality of performance data related to the fluid pump and the electric motor. The performance data from the lookup table is used by the controller to set aspects of the electrical signal communicated to the electric motor in order to achieve a desired attribute of the fluid pump.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: October 16, 2018
    Assignee: Eaton Intelligent Power Limited
    Inventors: Stephen Marshall Devan, Phillip W. Galloway, Kevin Stuart Williams
  • Patent number: 9541193
    Abstract: A shift control system includes an engine speed detector, a multistage transmission, a gear position detector, a shifting operation detector, and an output controller. The engine speed detector is configured to detect an engine speed. The gear position detector is configured to detect a transmission gear. The shifting operation detector is configured to detect an operation of a shift operating element. The output controller is configured to restrict output of an engine in a case where an up-shifting operation is detected by the shifting operation detector. The output controller is configured to release output restriction of the engine before the gear position detector detects that switching to a next-stage transmission gear by the up-shifting operation of the shift operating element is completed.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: January 10, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Dai Arai, Hiroshi Kurata, Hiromi Suzuki, Takuma Shiouchi
  • Patent number: 9518654
    Abstract: A vehicle controller includes a lock-up clutch disposed to a power transmission path between an engine and a driving wheel, and a clutch configured to connect and disconnect the power transmission path, wherein at the time of switching driven traveling for causing a vehicle to travel by connecting the power transmission path and inertia traveling for causing the vehicle to travel by disconnecting the power transmission path, the lock-up clutch and the clutch are switched at switching start timings different from each other.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: December 13, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masaki Mitsuyasu
  • Patent number: 9410622
    Abstract: A transmission system for optimally re-engaging a shift clutch irrespectively of running conditions of the vehicle. In the transmission system for a vehicle in which a shift clutch is actuated interlockedly with a shift spindle rotationally driven by a shift motor, a target clutch torque for the shift clutch is calculated based on an estimated engine torque derived from an estimated engine torque map which prescribes the relation between engine rotational speed, throttle angle, and estimated engine torque, and a target shift spindle angle is calculated based on a value derived from a target shift spindle angle map which prescribes the relation between the target clutch torque and the target shift spindle angle. A control unit controls the shift motor based on the target shift spindle angle calculated by a target shift spindle angle calculator, at the time of effecting a gear shift of a transmission.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 9, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takumi Makabe, Dai Arai, Yohei Endo
  • Patent number: 9199646
    Abstract: A method for running a vehicle (100) that includes a combustion engine (101) which can selectively be connected to a driveshaft (104, 105) to deliver driving force to the driveshaft (104, 105) for propulsion of the vehicle (100). When the vehicle (100) is in motion, determining whether the vehicle (100) is approaching a downgrade and, when it is approaching the downgrade, disconnecting the engine (101) from the driveshaft (104, 105) before the vehicle (100) reaches the downgrade. Also a system and a vehicle are disclosed.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: December 1, 2015
    Assignee: SCANIA CV AB
    Inventors: Mustafa Abdul-Rasool, Oskar Johansson, Mikael Ögren
  • Patent number: 9181917
    Abstract: In a start control system for a vehicle, a memory stores a first setting value used to control a clutch to attain a start standby state and a second setting value used to control the clutch to attain a start preparation position. A clutch controller controls the clutch to attain a start standby state based on the first setting value upon determining that the vehicle has proceeded to a start standby period and controls the clutch to attain a start preparation state, in which the distance between the clutch disks is smaller than that in the start standby state, based on the second setting value upon determining the vehicle has proceeded to a start preparation period. The clutch controller controls the clutch such that the distance between the clutch disks is smaller than that in the start preparation state and carries out control such that an engine speed approaches an engine target speed.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: November 10, 2015
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Katsuhiro Arai
  • Patent number: 9145049
    Abstract: A vehicle includes a motive power source, a transmission, and a clutch system. The vehicle further includes a controller that causes the clutch system to generate a generally constant clutch pressure to mechanically couple the motive power source and transmission as a line pressure associated with the transmission varies.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: September 29, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Scott Colvin, Bernard D. Nefcy, Marvin Paul Kraska, Walter Joseph Ortmann
  • Patent number: 9026327
    Abstract: A method for controlling a transmission of a powertrain system includes executing a single source shortest path search to identify a preferred shift path originating with an initial powertrain state and terminating at a target powertrain state, wherein the single source shortest path search employs transition-specific costs and situational costs to identify the preferred shift path. The preferred shift path is executed to achieve the target powertrain state.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: May 5, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Lawrence A. Kaminsky, Besim Demirovic, Pinaki Gupta, Anthony H. Heap
  • Patent number: 9020725
    Abstract: A brake control system and method for motor vehicles is provided with an electronic control unit, by which, when the motor vehicle is stationary, a parking brake function can be activated manually or automatically. Its deactivation occurs upon reaching a predefined release condition. In the presence of a release condition the brake pressure, which was built up for the parking brake function, is released in a time offset manner at least in relation to the axles of the vehicle by way of the control unit.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: April 28, 2015
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Guenther Sokoll
  • Patent number: 9008931
    Abstract: A bicycle gear shift control system capable of avoiding frequent gear shifting includes: a power module; a microcomputer electrically connected to the power module for allowing a cyclist to switch between the automatic gear shifting mode and a manual gear shifting mode; a gear shifting driver electrically connected to the microcomputer, substantially connected to a derailleur, and instructed by the microcomputer to drive the derailleur to perform gear shift control; and a manual shifting controller electrically connected to the microcomputer. The microcomputer has an automatic gear shifting logic whereby the microcomputer determines the timing of automatic gear shifting and performs gear shifting. The microcomputer further has a gear shifting delay logic that involves delaying for a delay time interval from commencement of gear shifting according to a gear shifting criterion and ruling out all other gear shifting commands during the delay time interval.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: April 14, 2015
    Assignee: J.D. Components Co., Ltd.
    Inventor: Chi-Chang Cheng
  • Patent number: 9008908
    Abstract: A head-up display light source intensity control for a vehicle can include sensing an ambient light intensity condition and providing ambient light intensity data indicative of the ambient light intensity condition to a controller. A speed of the vehicle is sensed and vehicle speed data indicative of the speed of the vehicle is provided to the controller. The controller is configured to calculate a light intensity output value for the head-up display based on both the ambient light intensity data and the vehicle speed data. The light intensity output of a light source of the head-up display is adjusted based upon the light intensity output value.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: April 14, 2015
    Assignees: DENSO International America, Inc., Denso Corporation
    Inventors: Chester Peter Dara, Jr., Carlin Bjork Blanton
  • Patent number: 8977454
    Abstract: A system and method are provided for grade-based anti-hunt shift control of an automatic transmission powering a machine. A shift controller determines a recommended gear in which to operate the transmission and sets an anti-hunt timer upon recommending a shift from a first gear to a second gear. The anti-hunt timer prevents a subsequent shift back to the first gear while the anti-hunt timer is running. A grade-based controller is configured to track machine operation and to determine when the machine operational factors change such that an estimated steady state gear differs from the second gear. When such a change is encountered, the grade-based controller clears the anti-hunt timer and sets a secondary timer. The clearing of the anti-hunt timer allows a downshift to accommodate the detected grade while the setting of the secondary timer prevents a subsequent clearing of the anti-hunt timer while the secondary timer is running.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 10, 2015
    Assignee: Caterpillar Inc.
    Inventors: Scott A. Tipton, James W. Landes, Justin L. Steinlage
  • Patent number: 8972132
    Abstract: A method of controlling a transmission includes detecting an occurrence of a downshift in the transmission from a first gear ratio to a second gear ratio. A determination is made whether the vehicle is operating within a freeway speed range, and whether an accelerator pedal is depressed at least a minimum percentage of a fully depressed position. When the downshift from the high gear ratio to the low gear ratio is detected, the vehicle is operating within the freeway speed range, and the accelerator pedal is depressed at least the minimum percentage of the fully depressed position, a countdown timer is started to count down from a pre-defined time to zero. An upshift of the transmission from the second gear ratio to the first gear ratio is restricted while the countdown timer defines a time that is greater than zero.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: March 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Eric Piper, Alexander K. Rustoni, John Janczak, Samantha Victoria Lado
  • Patent number: 8972136
    Abstract: Discloses is a method of controlling a four-wheel drive vehicle equipped with a torque distribution device capable of changing a torque distribution amount for secondary driven wheels according to an input current to be applied thereto. This method comprises the steps of: applying, to the torque distribution device, a current value corresponding to a target torque distribution amount; and, performing a current changing control for increasing and reducing the input current to the torque distribution device. The step of performing a current changing control includes causing the input current to the torque distribution device to be temporarily increased to a value greater than the current value corresponding to the target torque distribution amount, and then returned to the current value corresponding to the target torque distribution amount, and repeating the temporary increasing of the input current at least at intervals of a predetermined time.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: March 3, 2015
    Assignees: Mazda Motor Corporation, JTEKT Corporation
    Inventors: Yasushi Yagi, Hiroto Kawano, Tomohiro Nozu, Akiyoshi Kakita, Ryohei Shigeta
  • Patent number: 8972131
    Abstract: A control system for a transmission includes an actuator module, a timer module, and a pulse module. The actuator module engages N hydraulic clutches and disengages M hydraulic clutches to operate the transmission in a gear ratio, wherein N and M are integers greater than zero. The timer module determines a first period starting when the transmission begins operating in the gear ratio. The pulse module selectively supplies a pressure pulse to P of the M hydraulic clutches based on the first period, wherein P is an integer greater than zero. A method for controlling a transmission is also provided.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: March 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Steven Dietz, Gabriel M. Gibson, David Szpara, Brandon E. Hancock
  • Patent number: 8965648
    Abstract: A transmission includes a dog clutch type transmission mechanism, a clutch actuator that drives a clutch, a shift actuator that moves a movable gear of the transmission mechanism, and a delay time setting section that sets a delay time which is a time period between start of disengagement of the clutch and start of movement of the movable gear. When an engagement force between dog portions to be disengaged from each other is a first engagement force, the delay time setting section sets the delay time to a first delay time. When the engagement force is a second engagement force smaller than the first engagement force, the delay time setting section sets the delay time to a second delay time shorter than the first delay time.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: February 24, 2015
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Takuya Murayama
  • Patent number: 8936532
    Abstract: A method and device for operating a dual clutch transmission connectable to an internal combustion engine provided in a vehicle includes providing a control unit for managing at least the internal combustion engine and the transmission, providing a prediction model including at least one simulated shift sequence for the transmission, predicting the time between a first power upshift/downshift and a second power upshift/downshift for the transmission by using the at least one prediction model, modifying at least one parameter for operating the transmission if the predicted time between the first power upshift/downshift and the second power upshift/downshift for the transmission is shorter than a predetermined time.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: January 20, 2015
    Assignee: Volvo Lastvagnar AB
    Inventors: Behrooz Razaznejad, Anders Eriksson, Johan Bjernetun
  • Patent number: 8924075
    Abstract: An electric power steering system includes: a torque sensor including a first rotor connected to an input shaft, a second rotor connected to an output shaft, a first angle element for measuring an absolute steering angle of the first rotor, and second and third angle elements for measuring relative steering angles of the first rotor; and an electronic control unit for determining a reference steering angle based on the absolute steering angle and the relative steering angles received from the torque sensor, tracing and accumulating first and second absolute steering angles rotated from the reference steering angle based on the relative steering angles received from the second and third angle elements, and averaging the first and second absolute steering angles to provide the calculated final absolute steering angle when the difference between the accumulated first and second steering angles is within the preset reference difference.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 30, 2014
    Assignee: Mando Corporation
    Inventor: Hyun-Seop Jang
  • Patent number: 8924107
    Abstract: A control device for an automatic transmission mounted on a vehicle to establish a plurality of shift speeds by engaging engagement elements that need to be engaged for each shift speed. The control device includes a target shift speed setting device, a during-travel neutral control device and a prediction control device. The prediction control device takes action when a predicted prechange time becomes equal to or less than a predetermined time while the automatic transmission is in the neutral state, the predicted prechange time being a time predicted on the basis of variations in vehicle speed and being a time before implementation of a change of the target shift speed that involves changing the particular engagement element from a disengaged state to an engaged state in order to maintain the neutral state.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: December 30, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Masatake Ichikawa, Yutaka Teraoka, Hiroyasu Amano
  • Patent number: 8924112
    Abstract: A start control device and a start control method of a vehicular power transmission system including a lock-up clutch and a start clutch are provided in which start-time lock-up slip control is performed, and neutral control is performed. When the start-time lock-up slip control is additionally executed during cancellation of the neutral control, the gradient of an output rotational speed of the hydraulic power transmission which is changed, through engagement of the start clutch, toward an input rotational speed of the automatic transmission at the time of completion of engagement of the start clutch is controlled, using at least one of a start clutch pressure that is increased so as to engage the start clutch, and a lock-up clutch pressure that is increased so as to bring the lock-up clutch into slip engagement.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: December 30, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Atsushi Ayabe, Tomohiro Asami, Hidenori Saito
  • Patent number: 8909445
    Abstract: The present invention relates to a method for determination of one or more shift points for a gearbox in a motor vehicle which comprises an engine connected to, in order to drive, said gearbox, where a shift point represents an engine speed at which said gearbox is adapted to effecting a downshift or upshift, said one or more shift points are determined on the basis of an engine target speed ?T and a first engine speed difference ??TT, said target speed ?T is a desired speed for said engine, said first engine speed difference ??TT is a difference between a first engine speed at a first time t1 and said target speed ?T at a second time t2, and said first and second times t1 and t2 are separated by a time period T. The invention relates also to a system, a motor vehicle, a computer program and a computer program product thereof.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: December 9, 2014
    Assignee: Scania CV AB
    Inventors: Fredrik Swartling, Anders Kjell, Tom Nyström
  • Patent number: 8886420
    Abstract: A control method for an automatic transmission includes a step of canceling the shift performed by a shift operation for performing shifting in the same direction as that of the shifting performed by automatic shift control, when the shift operation is performed before the input revolution speed correlation value of the automatic transmission becomes a predetermined value, after the automatic shift control has been started in a manual shift mode, a step of switching a shift stage display at a timing at which the shift operation that is to be canceled has been performed, and a step of switching the shift stage display at a timing at which the input revolution speed correlation value becomes the predetermined value when a shift operation is not performed within a period of time from when the automatic shift control is started till when the input revolution speed correlation value becomes the predetermined value.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: November 11, 2014
    Assignee: Mazda Motor Corporation
    Inventors: Tetsutaka Shibata, Kosuke Takegawa, Nobuyuki Sakata, Kazuo Sasaki
  • Patent number: 8874338
    Abstract: A method for electronically controlling a bicycle gearshift and a bicycle electronic system, wherein when a gearshifting request is transmitted from an electronic control unit to a driving unit, the driving unit associates a wait for a waiting time therewith. In the case of a multiple gearshifting, the waiting time allows a chain to mesh securely with a toothed wheel. By providing for the wait to be carried out in a driving unit of a derailleur, the computing capability of an electronic control unit is not affected by the management of the wait, and the electronic control unit is free to carry out other functions, for example the management of errors of the electronic system, communication with a display unit or various sensors of the electronic system, etc.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: October 28, 2014
    Assignee: Campagnolo S.r.l.
    Inventor: Federico Miglioranza
  • Patent number: 8868271
    Abstract: Disclosed herein is a motor control system and method for a vehicle with a transmission comprising for improving the quality of shifting, by improving precision in shifting control with precise and active motor torque control by calculating a maximum and a minimum motor torque in response to determining a power-on up-shift for increasing a shifting gear and a power-off down-shift for decreasing the shifting gear in shifting of the vehicle.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: October 21, 2014
    Assignee: Hyundai Motor Company
    Inventor: Sang Joon Kim
  • Patent number: 8855878
    Abstract: A system and method for controlling an accumulator in a transmission of a motor vehicle includes the steps of determining whether the motor vehicle has been turned off, sensing at least one operating condition of the motor vehicle, and comparing the at least one operating condition to a reference condition. If the at least one operating condition of the motor vehicle fulfills the reference condition and if the motor vehicle has been turned off then the accumulator is discharged.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: October 7, 2014
    Assignee: GM Global Technology Operations, LLC.
    Inventors: Paul G. Otanez, Zhen J. Zhang
  • Patent number: 8855873
    Abstract: A shift controlling apparatus includes an automatic shift mode returning member with a manual shift mode wherein a transmission is manually shifted and an automatic shift mode wherein the transmission is automatically shifted based on an automatic shift map and changes over. When a manual shift operation is carried out in the automatic shift mode, the shift mode moves to the manual shift mode and then automatically returns to the automatic shift mode after the manual shift operation. The automatic shift mode returning member includes a manual operational detection member for detecting a manual shift operation for shift up or shift down of the transmission during the automatic shift mode, first operational state discrimination member for discriminating an operational state of a vehicle when the manual shift operation is carried out, and second operational state discrimination member for discriminating an operational state of the vehicle after the manual shift operation.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: October 7, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Naoki Sakamoto, Dai Arai, Kosaku Takahashi
  • Patent number: 8836485
    Abstract: A remote control system includes a mobile device and a receiver connected to a control target. The mobile device includes an input unit accepting user's input operation; an operation signal transmission unit wirelessly transmitting an operation signal corresponding to the input operation during the input operation; a frequency switching determination unit determining whether to switch the transmission frequency band from a first frequency band to a second frequency band based on at least any one of a manner of the input operation and a state of wireless communication; and a transmission frequency switching unit switching the transmission frequency band when the frequency switching determination unit determines to switch the transmission frequency band. The receiver includes an operation signal reception unit receiving the operation signal; and a control unit controlling the control target on the basis of the received operation signal.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: September 16, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Denso Corporation
    Inventors: Hiroko Murakami, Hiroki Okada, Arinobu Kimura, Kazuhiro Nakashima
  • Patent number: 8838352
    Abstract: A method and a vehicle transmission for selecting a starting gear in a vehicle are provided, the method including steps of measuring a starting gear selection parameter, and selecting a starting gear for the next coming vehicle take-off in dependence of the measured starting gear selection parameter, wherein the starting gear selection parameter is the number of vehicle take offs per time unit. Additionally the parameter can be acceleration in movement of an accelerator pedal being depressed by a driver, accelerator pedal position and clutch wear. Benefits are increased clutch endurance for a vehicle that during at least a period has to perform frequent take-offs and at the same time enhancing take-off comfort for a vehicle that during at least a period goes long-distance.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: September 16, 2014
    Assignee: Volvo Lastvagnar AB
    Inventors: Anders Eriksson, Johan Bjernetun
  • Patent number: 8798838
    Abstract: A control device of a hybrid vehicle includes an engine, a motor/generator, a first clutch, an automatic transmission, a second clutch, and startup/shifting simultaneous processing section. When engine speed increase control for increasing the engine speed by the motor/generator in order to start up the engine during travel and downshifting control of the automatic transmission are processed in parallel, the startup/shifting simultaneous processing section uses the motor torque of the motor/generator to increase the increase of input speed by the downshifting control to a target input speed while engine speed increase control is being performed by the motor/generator.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: August 5, 2014
    Assignees: Nissan Motor Co., Ltd., JATCO Ltd.
    Inventors: Fumihiro Yamanaka, Masami Suzuki
  • Patent number: 8798839
    Abstract: A hybrid vehicle control device is provided with an engine, a motor/generator, a first clutch, an automatic transmission, a second clutch, and a controller having a simultaneous process selection control section. The simultaneous process selection control section performs engine startup control and downshift control in parallel in cases where the torque outputtable by the motor subsequent to downshifting during overlap of an engine startup request and a downshift request is equal to or greater than the engine startup torque, or performs engine startup control first then downshift control in cases where the torque outputtable by the motor subsequent to downshifting is less than the engine startup torque.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: August 5, 2014
    Assignees: Nissan Motor Co., Ltd., JATCO Ltd.
    Inventors: Fumihiro Yamanaka, Masami Suzuki
  • Patent number: 8769933
    Abstract: A method to operate a vehicle equipped an internal combustion engine and a transmission coupled to drive wheels. The vehicle is equipped with a parking brake and has an electronic control unit with memory and the engine in fluid communication with an exhaust aftertreatment system. The method includes the steps of determining whether the engine is operating in idle mode for a predetermined period of time; determining whether NOx emissions exceed a predetermined level after the predetermined period of time; and limiting the engine speed not to exceed a predetermined engine speed until an operator engages the parking brake and engages an engine ignition switch.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: July 8, 2014
    Assignee: Detroit Diesel Corporation
    Inventors: Marleen F. Thompson, Tomislav Ivo Golub
  • Patent number: 8768588
    Abstract: A transmission includes a controller being provided with a change-speed stage anticipator. The controller adopts a time, which one of the transmission's gear-mechanism selectors requires in shifting a current change-speed stage to another change-speed stage, as a pre-shift time for selecting the latter change-speed stage. The change-speed stage anticipator operates the one of the gear-mechanism selectors while adopting a temporary change-speed stage as a subsequent change-speed stage when the temporary change-speed stage, which is estimated from a state of vehicle after the pre-shift time, the state of vehicle being relevant to each element of an anticipated change-speed stage group that is made up of one or more of the change-speed stages that can be selected by the one of the gear-mechanism selectors being set on one of the transmission's input shafts that is disconnected from a power source, coincides with an anticipated change-speed stage that corresponds to the pre-shift time.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: July 1, 2014
    Assignees: Aisin AI Co., Ltd., Aisin AW Co., Ltd.
    Inventors: Hiroki Hatori, Hiroshi Toyoda, Takeshige Miyazaki, Yoshiki Ito, Kiyoshi Nagami, Atsushi Takeuchi
  • Patent number: 8762036
    Abstract: Future travel times along links are predicted using training and prediction phases. During training, seasonal intervals, a seasonal component of the training inflows are learned. The seasonal component is subtracted from the training inflows to obtain training deviations from the training inflows to yield statistics, which along with the seasonal components form a model of traffic flow on the link. During prediction, current travel times on the link are collected for current seasonal intervals to determine current inflows. A most recent travel time is subtracted from a most recent inflow to obtain a current deviation. For a future time, a predicted deviation is estimated using the statistics. The seasonal component is added to the predicted deviation to obtain a predicted inflow from which the future travel time is predicted.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: June 24, 2014
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventor: Daniel Nikolaev Nikovski
  • Patent number: 8751118
    Abstract: A method for control of a vehicle's gearbox which is connected to a combustion engine and can be set to a number of different transmission ratios. When the vehicle is running in a low transmission ratio and at an engine speed below that at which the torque plateau for the low ratio is reached, in a situation where there is a reduced need for power output to propel the vehicle, determine a speed parameter for the vehicle, switch the gearbox to a higher transmission ratio than the low ratio when the speed parameter fulfills a first criterion.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: June 10, 2014
    Assignee: Scania CV AB
    Inventors: Roger Hälleberg, Anders Jensen
  • Patent number: 8751075
    Abstract: An engine control strategy for a marine vessel propulsion system receives a request for a gear from among plural transmission gears, determines an engine speed for the requested transmission gear shift, adjusts the engine to the determined speed for a predetermined amount of time, and prevents the requested transmission gear shift from occurring for the predetermined amount of time while maintaining the engine at the predetermined speed. After the predetermined amount of time elapses, the requested shift is allowed to occur.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: June 10, 2014
    Assignee: Cummins Intellectual Properties, Inc.
    Inventors: Conor A. Leehaug, Joseph H. Scott, Andrew H. Bazan, Jiuzhu Yi
  • Patent number: 8738252
    Abstract: A method for driving a vehicle in which a gearbox connected to a combustion engine can be set to various different transmission ratios including a low transmission ratio in which the engine speed is below that at which a torque plateau for the low ratio is reached. The vehicle may drive in a first mode or a second mode both at the low ratio, such that in the first mode, the vehicle is driven without fuel supply to the engine and in the second mode, the engine is provided with fuel supply in order to deliver motive force for propulsion of the vehicle. In the method one determines whether the vehicle should be driven according to the first mode or the second mode, based on a need for motive force.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: May 27, 2014
    Assignee: Scania CV AB
    Inventors: Roger Hälleberg, Anders Jensen
  • Patent number: 8731791
    Abstract: When an internal combustion engine is cranked up from a stopped position of a piston in a restart-time first ignition cylinder which is scheduled to start a combustion at the time of an automatic restart of the engine under an automatic stop of the engine during an idling-stop control, a restart-time ignition time interval between a time point when the cranking of the engine is started and a time point when the restart-time first ignition cylinder is initially ignited is calculated. A drive-start timing of a starter motor is delayed according to this restart-time ignition time interval. Thereby, the cranking of the engine is carried out by the starter motor under a state where the hydraulic pressure supplied from the electric oil pump has increased. Thus, the slip in the clutch of the CVT can be suppressed when the gas mixture in the restart-time first ignition cylinder is initially ignited.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: May 20, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shouta Hamane, Takayuki Iwasaki, Yoshikazu Hirato
  • Patent number: 8725369
    Abstract: A method for driving a vehicle which has a gearbox connected to a combustion engine and the gearbox is capable of being set to a number of different transmission ratios in order to deliver motive force to a driveshaft for propulsion of the vehicle. The vehicle is arranged for driving in at least a first mode and a second mode, such that in the first mode the gearbox is switched to a low transmission ratio and in the second mode the combustion engine is disconnected from the at least one driveshaft. When the vehicle is being driven in a situation where there is or will within a specific time be a reduced need for motive force for the vehicle, the method determines whether the vehicle should be driven according to the first mode or the second mode, on the basis of an ambient parameter.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: May 13, 2014
    Assignee: Scania CV AB
    Inventor: Anders Jensen
  • Patent number: 8725371
    Abstract: A speed changing control apparatus for use in a vehicle includes: a driving power source configured to generate driving power for running; a transmission having a synchromesh mechanism configured to synchronize an input shaft revolution number with an output shaft revolution number and an actuator configured to automatically carry out a shift operation; and an automatic clutch disposed between the driving power source and the transmission. The speed changing control apparatus is configured to start a shift disengaging operation for the transmission after a speed change is requested and before the automatic clutch turns into a decoupled state, so as to suppress torsional vibration at the time of decoupling the automatic clutch. Such control enables the synchromesh mechanism to carry out revolution synchronization with the input shaft revolution number of the transmission in a lowered state, and diminishes a revolution difference subjected to synchronization.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: May 13, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masato Shimizu, Masato Tateno, Masayasu Mizobuchi
  • Patent number: 8725373
    Abstract: A control apparatus of an automatic transmission including a start intended operation detecting unit detecting a vehicle starting operation; and a clutch control unit engaging the clutch from the clutch disengaged state and the automatic speed change mechanism is placed in a neutral state, when the vehicle starting operation is detected. The clutch control unit includes an initial engagement control unit performing initial engagement control that starts frictional contact of the clutch by supplying hydraulic pressure to a hydraulic servo of the clutch, and a slip start control unit establishing a speed ratio of the automatic speed change mechanism at the start by slip-controlling the clutch after the initial engagement control is terminated, thereby increasing output shaft rotational speed of the automatic speed change mechanism without reducing the input shaft rotational speed of the automatic speed change mechanism to less than the input shaft rotational speed at the end of initial engagement control.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 13, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Hiroshi Tsutsui, Yutaka Teraoka, Masatake Ichikawa, Shoji Omitsu
  • Patent number: 8706372
    Abstract: In a method for adjusting a brake system of a vehicle, braking power is automatically built up in the event of a collision. The automatic buildup of the braking power may be terminated by a defined driver response when the actuation of a driving pedal of the vehicle at a defined intensity and for a minimum period of time is maintained by the driver.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: April 22, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Ferah Cetinkaya, Sybille Eisele, Michael Schmid, Ralf Schaeffler
  • Patent number: 8660761
    Abstract: A method is provided for controlling a gear ratio change in a hydrostatic drive machine. The hydrostatic drive machine includes a variable displacement pump and at least one variable displacement motor fluidly connected with the variable displacement pump. The method includes a step of determining a gear ratio rate of change corresponding to a change from a current gear ratio to a new gear ratio. Start and stop overlap gear ratios corresponding to the gear ratio rate are determined and define an overlap range. The current gear ratio is changed to the new gear ratio using electronic signals at least in part by simultaneously changing displacements of the variable displacement pump and the at least one variable displacement motor at gear ratios within the overlap range, and sequentially changing displacements of the variable displacement pump and the at least one variable displacement motor at gear ratios outside the overlap range.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: February 25, 2014
    Assignee: Caterpillar Inc.
    Inventors: Randall Todd Anderson, Bradley John Will
  • Patent number: 8639425
    Abstract: A method for making the synchronization process in automatic transmissions more robust and shortening the same, while at the same time taking the noise comfort into consideration.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: January 28, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Ulrich Neuberth, Frank Bast, Bjoern Stehle
  • Patent number: 8630777
    Abstract: A vehicle includes an engine, an automatic transmission, and a controller. The transmission includes a neutral idle (NI) state and a designated NI clutch which is selectively actuated to exit the NI state. The controller executes instructions from tangible memory to shift out of the NI state and into a drive state. The controller includes a slip model which generates a desired clutch slip profile as a differentiable time function, and a desired slip derivative of the desired slip profile. The desired profiles are used to calculate a clutch pressure command for controlling the designated NI clutch. The time function may be at least a third order/cubic equation. A method includes executing the slip model to generate the desired clutch slip profile, calculating a desired slip derivative of the desired slip profile, and using the desired slip profile derivative to calculate a clutch pressure command for the designated NI clutch.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: January 14, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew W. Phillips, David W. Wright, Ronald F. Lochocki, Jr.
  • Patent number: 8622871
    Abstract: The disclosure is directed to a method for use in a machine having a transmission having an operational mode, and including first and second power source paths, and a combined power output. The first power source path includes a variator. The method of controlling the transmission includes operating the first power source path, providing a signal indicative of the operational mode of the transmission to a controller, and at least partially neutralizing the variator if the signal indicates that the transmission is in neutral for at least a preset period of time.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: January 7, 2014
    Assignee: Caterpillar Inc.
    Inventor: Brian D. Hoff
  • Patent number: 8620545
    Abstract: A background map remains stationary while a portable unit moves within a plane parallel to the screen of the portable unit. As the user moves the unit, images of the background map appear on the screen of the portable device. The user scans the stationary map presented on the screen of the portable unit. This has several benefits since now relative distances and angular displacements within the plane between objects that are outside of the range of the screen of the handheld unit can be immediately be located and placed into view on the screen of a portable unit. The handheld unit is like a Sliding Window which provides a view of this image of a stationary map lying in the background of the portable unit.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: December 31, 2013
    Assignee: TrackThings LLC
    Inventors: Asher Thomas Gabara, Constance Marie Gabara, Thaddeus John Gabara
  • Patent number: 8600635
    Abstract: When a select lever is in a drive range, a microcomputer reads a value of an output voltage by a switch-operation-signal output circuit after detecting that both shift-up switch and shift-down switch are substantially simultaneously turned on, checks whether or not the output voltage by the switch-operation-signal output circuit is the output voltage indicating that the switch after a predetermined time has elapsed is in a normal condition, and only when the output voltage is such an output voltage, permits a manual mode of an automatic transmission and when the output voltage is not such an output voltage, cancels the manual mode.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: December 3, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuyoshi Wakita, Yoshiyuki Nagayama
  • Patent number: 8594871
    Abstract: A vehicle battery diagnosis system diagnoses the state of use of a battery of a vehicle, and includes: an information accumulation portion that accumulates diagnostic information that includes a use condition regarding the battery; a control plan presentation portion that presents a plurality of control plans about the vehicle for increasing the service life of the battery on the basis of the diagnostic information; and an information changing portion that changes control information regarding the control of the vehicle which is retained in a vehicle-mounted ECU of the vehicle so that the control information corresponds to a control plan selected from the plurality of control plans.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: November 26, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masatoshi Uchida
  • Patent number: 8583334
    Abstract: A method of determining an applied actuation touch point pressure value of a frictionally engaged shift element of a transmission at which transmission, via the shift element, is approximately zero, and an increase in pressure relates to an increase of the power transmission via the shift element. The method includes supplying a predefined pressure to the shift element at which power transmission is zero. Increasing the target pressure by an offset pressure to transfer the shift element into a predefined operating state which initiates time monitoring. Determining a characteristic of the actual pressure. After a testing time, a monitoring period is compared with a reference period. When the monitoring period is less than or equal to the reference period, the applied pressure is set to be equivalent with the target pressure.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: November 12, 2013
    Assignee: ZF Friedrichshafen AG
    Inventors: Gerhard Hermann Martin, Wilfrid Eberhard, Bernd Ummer
  • Patent number: 8560195
    Abstract: A command hydraulic pressure learning control unit includes an output-side torque time rate of change calculation unit for calculating a time rate of change of a torque at an output side of an automatic transmission, and a correction unit for correcting a command hydraulic pressure when transmission of a drive force of a friction element to be engaged is started at the time of a next shift based on a difference between the calculated time rate of change of the output-side torque and a target value.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: October 15, 2013
    Assignee: Jatco Ltd
    Inventors: Ikuhiro Iwamoto, Osamu Sato