Transmission Controlled By Engine Patents (Class 477/115)
  • Patent number: 11519354
    Abstract: Systems and methods for stopping an engine of a vehicle are described. In one example, the method anticipates when an engine is expected to stop and modifies engine operation so that less fuel is in the engine's intake ports when the engine is stopped so that the fuel may not escape the engine when the engine is restarted.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: December 6, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas Leone, Chris Glugla, Kenneth Miller
  • Patent number: 11493528
    Abstract: A position sensor including: a power supply terminal to which a power supply voltage is applied; a ground terminal to which a ground voltage is applied; an output terminal that outputs a signal; a detection portion that operates based on the power supply voltage and the ground voltage, and detects a position of a detection target by a magnetic resistance element whose resistance value changes according to a movement of the detection target; and a signal processing portion that operates based on the power supply voltage and the ground voltage, and processes a signal input from the detection portion.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: November 8, 2022
    Assignee: DENSO CORPORATION
    Inventors: Akito Sasaki, Atsushi Kobayashi, Michihiro Makita, Tetsuya Ohmi
  • Patent number: 11465767
    Abstract: An electric power generation controller for use in an aircraft is a controller of an electric power generating apparatus including a manual transmission configured to change speed of rotational power of an aircraft engine, transmit the rotational power to an electric power generator, and switch a gear stage by a friction clutch pressed by an actuator. The electric power generation controller includes a manual transmission control section configured to control the manual transmission. The manual transmission control section includes: a shift command section configured to output a shift signal which switches the gear stage of the manual transmission; and a clutch control section configured to, when switching the gear stage of the manual transmission, control clutch pressure of the actuator such that the friction clutch becomes a half-engaged state.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: October 11, 2022
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kippei Matsuda, Hideyuki Imai, Kenichiro Tanaka
  • Patent number: 11460103
    Abstract: A lockup disengagement control device for an automatic transmission including a torque converter including a lockup clutch, and a lockup control section, the lockup disengagement control device includes: when a brake is operated from a brake OFF to a brake ON during a coast traveling in an engagement state of the lockup clutch, the lockup control section being configured to sense an initial deceleration by the brake ON operation, and to set a lockup release vehicle speed to be higher as an absolute value of the initial deceleration is greater, and when a vehicle speed is sensed to be equal to or smaller than the set lockup release vehicle speed in a middle of a brake deceleration scene by the brake ON operation, the lockup control section being configured to disengage the lockup clutch.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: October 4, 2022
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Koji Saito, Akira Nakainkyo, Naoyasu Ikeda, Xuming Wang
  • Patent number: 11376954
    Abstract: A method for shifting a PTO transmission includes selecting a PTO output speed from one of a first PTO speed and a second PTO speed of the PTO transmission, operating the PTO transmission in a reduced power mode at the selected PTO speed, the reduced power mode providing lower power to the PTO transmission at the selected PTO speed than a normal operating mode, comparing an instantaneous drive power to a maximum drive power in the reduced power mode, and when the instantaneous drive power exceeds the maximum drive power, automatically shifting the PTO transmission under load from the reduced power mode to the normal operating mode and automatically adjusting a transmission ratio of a vehicle transmission.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: July 5, 2022
    Assignee: DEERE & COMPANY
    Inventors: David Müller, Rainer Gugel
  • Patent number: 11286040
    Abstract: An actuator system for controlling a movable surface has a main shaft connected between a power drive unit and the movable surface to transmit a command from the power drive unit to move the movable surface. If a failure in the main shaft is detected a failure control device connects a secondary shaft from the movable surface to the power drive unit e.g. by releasing a solenoid which releases gears so as to permit differential rotations between an outer ring and a sun gear of a planetary gear system, within prescribed limits. When these limits are exceeded, the solenoid brake is de-energised braking the planetary gear outer ring and tying the gears through an epicycle ratio corresponding to the ratio of gears connecting the main and secondary shafts. The gear system acts as a low mass asymmetry brake that allows post-failure operation of the surface control.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: March 29, 2022
    Assignee: GOODRICH ACTUATION SYSTEMS LIMITED
    Inventor: Antony Morgan
  • Patent number: 11235773
    Abstract: An electronic control unit engages two of friction engagement elements provided in an automatic transmission in a neutral range. The electronic control unit disengages one of the two friction engagement elements engaged in the neutral range at the time of starting gear stage switching of an auxiliary transmission from a low-speed gear stage to a high-speed gear stage in the neutral range, and re-engages the friction engagement element that has been disengaged when determining that the gear stage switching has been completed.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: February 1, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Aono, Naoki Hiura
  • Patent number: 11047475
    Abstract: A method for operating a transmission (3) that includes at least one form-locking shift element (A, F) with two shift-element halves is provided. The shift element (A, F) is disengaged in a first end position and is engaged in a second end position of a displaceable shift-element half. Upon detection of a sensor malfunction, a check is carried out to determine whether the shift-element half, before the malfunction of the sensor, was in an end position as demanded and was actuated by an actuation force acting in the direction of this end position. Power flow in the transmission (3) is maintained for as long as it takes for the shift-element half, starting from the current end position, to be actuated in the direction of the other end position and/or for the actuation force acting in the direction of the current end position to be less than a threshold value.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: June 29, 2021
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Martina Jehle, Christian Pannek
  • Patent number: 11028842
    Abstract: A rig management system is disclosed. The rig management system may be configured to receive information to be used to control shifting of a transmission to prevent cavitation during use of the hydraulic fracturing rig. The rig management system may be configured to determine a flow rate for a pump based on the information. The rig management system may be configured to determine an output torque of the transmission based on the flow rate. The rig management system may be configured to determine a transmission gear for the transmission based on the output torque and a fuel consumption map, wherein the fuel consumption map identifies a respective fuel consumption rate for different combinations of transmission gears and output torques. The rig management system may be configured to cause the transmission to shift into the transmission gear after determining the transmission gear.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: June 8, 2021
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Zhijun Cai, Maurice Dust
  • Patent number: 11015704
    Abstract: A vehicle has an engine (1) as a driving source. Output rotation of the engine (1) is transmitted to driving wheels (7) through a torque converter (2) equipped with a lock-up clutch, a first gear train (3), a transmission (4) formed by combination of a variator (20) and an auxiliary transmission (30), a second gear train (5) and a final speed reduction device (6). The second gear train (5) is provided with a parking mechanism (8) that mechanically locks an output shaft of the transmission (4) so that the output shaft of the transmission (4) cannot rotate during parking of the vehicle. A shift speed when down-shift is performed by the variator (20) during a torque-down request to the engine (1) is set to be slower than a shift speed when down-shift is performed by the variator (20) during a non-torque-down request.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: May 25, 2021
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Sho Okutani, Takashi Koguchi, Makoto Komatsu, Takashi Nobukawa
  • Patent number: 10995852
    Abstract: A vehicle includes a transmission having a plurality of friction elements selectively engageable to establish power flow paths within the transmission. A controller of the vehicle is programmed to, during a boost phase of a shift, command a first hydraulic boost pressure for a plurality of control loop cycles to an oncoming one of the friction elements (oncoming friction element) and subsequently command a second hydraulic boost pressure less than the first hydraulic boost pressure for only a single control loop cycle that defines an end of the boost phase to the oncoming friction element.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 4, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Jaewon Choi, Stephen Michael Cicala, Bradley D Riedle, Eric Frank Banners, Cory Benson Laroche, Kurt Howard Nickerson
  • Patent number: 10975959
    Abstract: A control system operates a power train of a work vehicle. The system includes a transmission arrangement which transfers power from an engine to an output shaft of the vehicle to drive the vehicle in a first or second direction according to at least one forward or reverse modes. The arrangement includes a forward directional clutch and a reverse directional clutch, and a controller. The controller is configured to determine if one of the clutches is engaged; evaluate a speed of the engine; and provide a torque command to engage the other of the clutches to slow the speed of the engine when a shuttle shift is initiated, or when the speed of the engine exceeds a predetermined speed threshold.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: April 13, 2021
    Assignee: DEERE & COMPANY
    Inventors: Kyle K. McKinzie, Clayton G. Janasek
  • Patent number: 10946855
    Abstract: Described herein is a method for reducing noise in a driveline of a motor vehicle, the method including detecting a condition initiating a noise event of the driveline by using one or more sensors on board the vehicle; and controlling, as a function of the detected condition and of a signal of said one or more sensors, an actuation of one or more actuators that govern corresponding devices that can be connected to the driveline and configured for generating a torsional pre-load condition in the driveline itself.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: March 16, 2021
    Assignee: C.R.F. Società Consortile per Azioni
    Inventors: Giancarlo Osella, Francesco Cimmino, Enrico Galvagno, Constantinos Vafidis, Mauro Velardocchia, Alessandro Vigliani, Antonio Tota
  • Patent number: 10900566
    Abstract: Gear position estimation techniques for a manual transmission of a vehicle include estimating a gear ratio of the manual transmission based on measured speeds of the vehicle and its torque generating system and when the estimated gear ratio is not within a threshold amount from any known gear ratios of the manual transmission, detecting at least two gear shifts of the manual transmission and determining a set of possible axle/tire ratios each indicative of a ratio of an axle ratio of the vehicle to a tire circumference of the vehicle after each gear shift, wherein each set includes values based on the measured torque generating system and vehicle speeds and each of the known gear ratios of the manual transmission, selecting and utilizing one of the possible axle/tire ratios that is common across all of the sets of possible axle/tire ratios.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: January 26, 2021
    Assignee: FCA US LLC
    Inventors: Songping Yu, Omar Elbanna, Mohamed Othman
  • Patent number: 10823287
    Abstract: A method for determining and controlling engine speeds of a work vehicle during gear shifts may include controlling an operation of an engine and/or a transmission of a work vehicle so as to maintain the work vehicle operating at a requested speed, and determining a measured gear ratio for the transmission as a gear shift is occurring from a first gear ratio to a second gear ratio. The method may also include calculating a desired engine speed during the gear shift as a function of the requested speed and either the measured gear ratio or the second gear ratio. In addition, when the measured gear ratio differs from the first gear ratio by a predetermined threshold amount, the method may include controlling the engine speed based on the desired engine speed for a remainder of the gear shift from the first gear ratio to the second gear ratio.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 3, 2020
    Assignee: CNH Industrial America LLC
    Inventors: Ashraf Omran, Garth Harvey Bulgrien, Brian A. Hartman
  • Patent number: 10793156
    Abstract: A vehicle control device is for a vehicle having a drive source, and an automatic transmission connected to the drive source, the automatic transmission having an engagement element for disconnecting/connecting transmission of a driving force and a variator placed further upstream than the engagement element. The vehicle control device includes first and second control units. The first control unit is configured to execute sailing stop control to stop the drive source and to put the automatic transmission into a neutral state when a sailing stop condition is established. The second control unit is configured to start the drive source and to implement downshifting of the variator when a size of a deceleration level is a prescribed value or greater when the sailing stop control is cancelled due to a prescribed sailing stop cancellation condition among sailing stop cancellation conditions being established, and to engage the engagement element after the downshifting.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: October 6, 2020
    Assignee: Jatco Ltd.
    Inventors: Yukifumi Ootsuka, Masayoshi Nakasaki, Yoshimasa Nishihiro
  • Patent number: 10711711
    Abstract: A vehicle controller includes a controlling section configured to control a torque applying mechanism. The controlling section is configured to execute a negative torque control by using the torque applying mechanism when execution conditions are satisfied. The execution conditions include a condition that an increase amount per predetermined time of the boost pressure has become greater than a preset boost pressure determination value. The negative torque control is a control to set the rotational torque applied to the crankshaft by the torque applying mechanism to a negative value that is on the negative side of a value immediately before the start of the negative torque control.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: July 14, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takumi Anzawa
  • Patent number: 10690199
    Abstract: An automatic transmission is provided, which includes a brake and an oil channel forming member. The brake includes an inner stationary member coupled to a transmission case, an outer rotary member, a plurality of friction plates, a piston configured to cause the friction plates to be engaged, and a hydraulic chamber for engagement. The oil channel forming member forms a supply oil channel for engagement. The piston includes a pressing part, a hydraulic chamber forming part, and a coupling part. The oil channel forming member includes a bonding part, a hydraulic chamber forming part, and a coupling part. The bonding part and the coupling part of the oil channel forming member are disposed in a cutoff part formed in the coupling part of the piston, and are disposed to overlap with the coupling part of the piston in circumferential directions.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: June 23, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Shota Yamakawa, Tatsuhiko Iwasaki, Tomotaka Ishizaka
  • Patent number: 10669960
    Abstract: A controller is configured to execute a dither control process of operating fuel injection valves such that at least one of cylinders is a lean combustion cylinder, in which the air-fuel ratio is leaner than the stoichiometric air-fuel ratio, and at least another one of the cylinders is a rich combustion cylinder, in which the air-fuel ratio is richer than the stoichiometric air-fuel ratio, and a limiting process of limiting the dither control process such that the difference in the air-fuel ratio between the cylinders is smaller in a change period, in which a gear ratio of the multi-speed transmission is changed, than in periods except for the change period.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: June 2, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuki Nose, Yoshiyuki Shogenji, Eiji Ikuta, Misako Ban, Keiichi Myojo
  • Patent number: 10620658
    Abstract: A vehicle pedal device includes a housing installed on a floor portion of a vehicle, a support provided behind the housing in a vehicle front-rear direction, and provided for a lower portion of the housing, and a pedal pad disposed while being inclined such that the pedal pad extends in a direction from the support to a position above the housing with a lower end portion of the pedal pad being rotatably supported by the support. The diameter of the largest virtual circle accommodated in a space defined by the pedal pad in a state of being maximally stepped on, the housing, and the support is larger than the diameter of the smallest virtual circle being in contact with the pedal pad in a state of being not stepped on and the housing as seen in a direction toward the pedal pad from a lateral side.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 14, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hironori Kadoi
  • Patent number: 10527113
    Abstract: A hydraulic circuit device for a vehicle, includes a clutch, a flow path, a fluid pump, a pressure generating device, and a control valve. The control valve is configured to determine whether a transmission start-stop function activation condition other than a vehicle speed is satisfied, determine whether a system start-stop function activation condition related to a component of the vehicle is satisfied, the component being other than the transmission, determine whether the vehicle speed is equal to or lower than a first speed threshold, and boost a line pressure of the flow path to accumulate pressure in the pressure generating device for preparing activation of the start-stop function if it is determined that the transmission start-stop function activation condition and the system start-stop function activation condition are satisfied, and if it is determined that the vehicle speed is equal to or lower than the first speed threshold.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: January 7, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Yuya Tachibanada
  • Patent number: 10493838
    Abstract: A gear unit (1) for a motor vehicle with a main gear (HG) comprising two parallel connected partial gears, an output shaft (3), and two planetary gears (PG1, PG2) each having a carrier (ST1, ST2), a sun gear (SR1, SR2) and a ring gear (HR1, HR2). A first planetary gear (PG1) is connected to the main gear (HG), with the main gear (HG) comprising first (R1), second (R2), third (R3), fourth (R4) and fifth (R5) gear planes and first (Si), second (S2), third (S3) and fourth (S4) shifting element. A second planetary gear (PG2) is provided between an electric engine (2) and a first gear input shaft (4) of the main gear (HG). The fourth shifting element (S4), in a second shifting position (H), connects the fifth gear plane (R5) and the carrier (ST1) of the range group and thus the range group is able to be shifted under load.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: December 3, 2019
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Johannes Kaltenbach, Johannes Glückler, Stefan Renner, Rayk Gersten
  • Patent number: 10464554
    Abstract: A vehicle controller configured to control a vehicle which includes a transmission gear includes at least one electronic control unit. The at least one electronic control unit is configured to: determine whether a shift range of the transmission gear is switched such that the vehicle travels in a changed traveling direction not based on a shift range switching operation by an occupant of the vehicle; and limit, when it is determined that the shift range is switched such that the vehicle travels in the changed traveling direction not based on the shift range switching operation, a driving force of the vehicle such that the driving force of the vehicle is smaller than when it is determined that the shift range is not switched such that the vehicle travels in the changed traveling direction not based on the shift range switching operation.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: November 5, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryuji Okamura, Shinya Sannodo
  • Patent number: 10458492
    Abstract: An electronic control unit executes gradual reduction control when a friction clutch is to be maintained in a fully engaged state such that an input rotary member and an output rotary member rotate integrally. As a result, a motor current supplied to a motor is adjusted to a lower current value. Thus, an average current value of the motor current supplied to the motor when the friction clutch is to be maintained in the fully engaged state is appropriately reduced.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: October 29, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki Arai, Satoshi Ishida, Shota Murai, Taito Goto
  • Patent number: 10449964
    Abstract: Variator (20) and forward clutch (Fwd/C) disposed in series are provided between engine (1) having starter motor (15) and driving wheel (7). Sailing stop control that, on the basis of satisfaction of sailing entering condition, interrupts power transmission by frictional engagement element (Fwd/C), stops engine (1) and performs coast-travel is performed. When sailing entering condition is satisfied, coast-travel is started with rotation stop timing of variator (20) being delayed with respect to rotation stop timing of engine (1). When accelerator pedal depression operation intervenes after start of coast-travel, engine (1) is restarted by starter motor (15). When judged that input and output rotation speeds of frictional engagement element (Fwd/C) become synchronization rotation speed after restart of engine (1), frictional engagement element (Fwd/C) is reengaged.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: October 22, 2019
    Assignee: JATCO LTD
    Inventors: Tadashi Iwamoto, Akira Takano, Masayoshi Nakasaki, Yoshimasa Nishihiro, Yukifumi Ootsuka
  • Patent number: 10443711
    Abstract: A vehicle having a controller is provided. The controller may be configured to, responsive to identification of a braking event predicted to occur in the future, hydraulically charge an accumulator, and responsive to a pressure of the accumulator exceeding a first threshold, cease charging the accumulator, and satisfy transmission line pressure demand with pressure from the accumulator to begin depleting the accumulator to a before initiation of the braking event.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 15, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Ram Sudarsan Devendran, John Edward Brevick, Steven Anatole Frait
  • Patent number: 10419723
    Abstract: A communication system for a vehicle includes an antenna array for transmitting data to at least one other vehicle or structure. A control is operable to adjust a beam transmission of the antenna array responsive to determination of a driving condition of the vehicle. The control may adjust the beam transmission from an omnidirectional beam to a directed beam to enhance the transmission range of the beam. The control may adjust the beam transmission to the directed beam directed rearward of the vehicle responsive to a determination of a highway driving condition. The control may adjust the beam transmission responsive to a determination of at least one of (i) a highway driving condition, (ii) a high traffic driving condition, (iii) an intersection driving condition and (iv) a weather condition at the vehicle.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: September 17, 2019
    Assignee: MAGNA ELECTRONICS INC.
    Inventors: Krishna Koravadi, Ove J. Salomonsson
  • Patent number: 10370001
    Abstract: The purpose of the present invention is to provide a coast-stop control device that makes it possible to change gears to an appropriate gear change while traveling, before the engine is stopped. The present invention is a coast-stop control device for performing coast-stop control that automatically stops an engine while the vehicle is traveling, the coast-stop control device being characterized: in being provided with an engine stop condition-assessing means for assessing whether it is possible to stop the engine and a gear change control means for controlling the gear change ratio of a gear change mechanism; and in controlling the gear change mechanism to a prescribed gear change ratio when the engine stop condition-assessing means determines that an engine stop condition has been met.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: August 6, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Ryoh Inaba, Masayuki Saruwatari
  • Patent number: 10371256
    Abstract: In a vehicle on which a torque converter having a lock-up clutch is mounted between an engine and a transmission, a meet point learning controller is provided to perform learning control for obtaining a learning value based on information on a meet point at which the lock-up clutch starts torque transmission. The meet point learning controller estimates a LU transmission torque based on a difference between an engine torque signal value and a torque converter transmission torque when the lock-up clutch moves from a non-engaged state to an engaged state during traveling of the vehicle, and uses, as the meet point information, a meet point detection pressure at a time when the LU transmission torque estimated value is determined to have entered an upward trend.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: August 6, 2019
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Toshimitsu Araki, Seiji Kasahara, Hideshi Wakayama, Kouji Saitou, Hiroyasu Tanaka
  • Patent number: 10293809
    Abstract: The present disclosure relates to a shifting control method that improves driving stability by reducing roll-back of a vehicle during the process of shifting on an uphill slope. The shifting control method for a hybrid vehicle includes: determining a degree of roll-back of the vehicle on the basis of a change in the number of revolutions of a transmission input shaft, when power-off down-shifting into a lowest gear is requested; decreasing a disengaging clutch torque, increasing an engaging clutch torque, and increasing a motor torque so that the motor torque follows a desired motor torque, when the degree of roll-back is equal to or greater than a set value; synchronizing a motor speed with an engaging input shaft speed by decreasing the motor torque, when the disengaging clutch torque is equal to or less than a set torque; and finishing the shifting by increasing the motor torque when the synchronization is finished.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: May 21, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sung Hyun Cho, Ju Hyun Nam
  • Patent number: 10293829
    Abstract: A road surface submergence estimation device including a motion sensor that acquires an actual acceleration of a vehicle; a torque acquisition sensor that acquires an actual torque transmitted from a driving source to wheels of the vehicle, the driving source being mounted in the vehicle; and an estimation processor that estimates that a road surface on which the vehicle is traveling is submerged when it is determined that a submergence determination condition is satisfied. The road surface submergence estimation device may also include a wireless communication device configured to either send submergence information to a central server, or receive additional submergence information from a central server.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: May 21, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Furukawa, Takuji Yamada
  • Patent number: 10208689
    Abstract: A method and system for blending between different torque maps of a vehicle in a smooth and progressive manner. Blending is delayed if the vehicle driver cannot detect that blending is taking place, for example, when the difference between a source map and target map is below a predetermined threshold.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 19, 2019
    Assignee: Jaguar Land Rover Limited
    Inventors: Paul Darnell, Elliot Hemes, Stephen Stacey
  • Patent number: 10175144
    Abstract: An actual gear ratio change amount (?Gr) is calculated by subtracting a pre-shift gear ratio (Gb) from an actual gear ratio (Gr). A gear ratio (G) is calculated by multiplying the actual gear ratio change amount (?Gr) by a predetermined coefficient (C) and adding the product value to the pre-shift gear ratio (Gb). When the shift is an upshift, the gear ratio (G) is compared with aa target gear shift ratio (Ga), and the greater value is set as a virtual gear ratio (Gv). When the shift is a downshift, then the gear ratio (G) is compared with the target gear ratio (Ga) and the smaller value is set as the virtual gear ratio (Gv). A virtual input shaft rotational speed (Nv) is calculated by first dividing the actual gear ratio (Gr) by the virtual gear ratio (Gv) to obtain a quotient and by dividing the actual input shift rotational speed (Nr) by that quotient.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: January 8, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Yoshinori Yamamoto
  • Patent number: 10167947
    Abstract: A control device of a vehicle including a multi-speed transmission having plurality of gear positions different in gear ratio selectively established by controlling engagement and release predetermined engagement devices out of plurality engagement devices, the control device involves: shift control portion configured to provide delay control of delaying time point starting provision of release-side torque phase control reducing a torque capacity of release-side engagement device by a preset delay time with respect to time point of starting provision of a torque phase control of generating a torque capacity of an engagement-side engagement device during a torque phase in a drive upshift; and a delay time setting portion configured to preset the delay time such that the delay time is shortened when a shared torque of the release-side engagement device before start of the torque phase in the drive upshift is high, as compared to when the shared torque is low.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: January 1, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Chimbe, Norihiro Tsukamoto, Keisuke Ota, Tomohiro Asami, Yuji Kajiyama, Daiki Fukuda
  • Patent number: 10151249
    Abstract: A geared architecture for a gas turbine comprising an output shaft for connection with a fan, an input shaft and a gearbox connecting the input shaft with the output shaft. The gearbox has a forward planet carrier plate supported by a forward radially fixed bearing structure and a rearward planet carrier plate supported by a rearward radially fixed bearing structure. By supporting the carrier plates on radially fixed bearing structures the planet carriers can rotate about their own axis to lower vibration and mesh forces within the gearbox.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: December 11, 2018
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Gideon Daniel Venter, Michael John Mountney
  • Patent number: 10145470
    Abstract: A continuously variable transmission (CVT) for use with a torque generating mechanism includes an input member connectable to the torque generating mechanism, an output member, a variator assembly, and a controller. The controller is programmed to control a change-of-mind shift of the CVT requesting a transition from an initially-requested shift to a next-requested shift before completion of the initially-requested shift. Additionally, the controller is programmed to execute a method by detecting the change-of-mind shift, determining an acceleration profile of the input member for the change-of-mind shift using a calibration map indexed by a starting and target ratio of the variator assembly, and calculating a required ratio of the input and output pulleys using the acceleration profile. The controller then commands a clamping pressure of the variator assembly to thereby achieve the calculated required ratio. A vehicle includes an engine and the CVT noted above.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: December 4, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Zhen J. Zhang, Paul G. Otanez
  • Patent number: 10119610
    Abstract: A method for controlling a line pressure of an automatic transmission, and controlling the line pressure when oil is supplied to elements of the automatic transmission through hydraulic passages and valves of a valve body at the time of initially starting a vehicle includes a line pressure setting operation of setting the line pressure of the automatic transmission to be equal to or lower than a set pressure when a vehicle is initially started, and a line pressure converting operation of converting the line pressure into a pressure equal to or higher than the set pressure when the automatic transmission is operated for shifting or when a set time has lapsed since initial vehicle starting.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: November 6, 2018
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hyun Ku Lee, Sa Man Hong, Moo Suk Kim, Jin Seung Lim, Seung Jin Lee
  • Patent number: 10099693
    Abstract: A control method of a dual clutch transmission for a hybrid electric vehicle, and a control system for the dual clutch transmission. The control method includes: a handover step of performing a handover process of a transmission while controlling clutch torque of an engaging-side input shaft to maintain a rotational speed change rate of the engaging-side input shaft at a reference change rate; and an actual shifting step of synchronizing a rotational speed of a motor with a rotational speed of the engaging-side input shaft when the first finish determining step determines that the handover process has finished, and of increasing a rotational speed change rate of the motor by increasing motor torque when a synchronization rate is a reference synchronization rate or less.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: October 16, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Hyun Cho, Ju Hyun Nam, Young Jun Lee
  • Patent number: 10094317
    Abstract: A method and system for blending between different torque maps of a vehicle so that step changes of torque output are avoided as accelerator pedal position is changed. Different blending rates are provided so as to reduce the blending time if driver demand is in the direction of torque change.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 9, 2018
    Assignee: Jaguar Land Rover Limited
    Inventors: Paul Darnell, Elliot Hemes, Stephen Stacey
  • Patent number: 10087856
    Abstract: An internal combustion engine includes cylinders that are divided into a first cylinder group and a second cylinder group, a cylinder reduction mechanism that holds intake valves and exhaust valves of the first cylinder group in closed states so as to establish a reduced-cylinder state. When the engine is stopped in the reduced-cylinder state, the electronic control unit provided in the engine starts the engine by ignition, by executing fuel injection and ignition in an expansion-stroke cylinder. When the first cylinder group includes an exhaust-stroke cylinder, the engine is started by ignition through fuel injection and ignition in the expansion-stroke cylinder, after a piston is moved in a reverse direction through fuel injection and ignition in the exhaust-stroke cylinder. When the first cylinder group does not include the exhaust-stroke cylinder, the engine is started by ignition, through fuel injection and ignition in the expansion-stroke cylinder and an intake-stroke cylinder.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: October 2, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Koki Matsushita
  • Patent number: 10072750
    Abstract: A shifter apparatus for manually changing gear ratio in a planetary gear transmission, said planetary gear transmission being of the type which comprises a plurality of actuators, wherein the sequential actuation of said actuators progressively causes a change of gear ratio in said planetary gear transmission. The shifter apparatus advantageously provides a single lever which can be quickly and easily shifted by a user.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: September 11, 2018
    Inventor: Michael Grunbaum
  • Patent number: 10053003
    Abstract: When an automatic transmission shift start condition is satisfied, an electronic control unit calculates a meter target rotational speed of an engine by adding a correction amount corresponding to the state of a torque converter to a turbine rotational speed corresponding to a post-shift gear stage, and makes a meter display rotational speed follow after the meter target rotational speed, fixes the correction amount to a value obtained at the time of shift start determination, when immobilization conditions including that the shift start condition for a downshift is satisfied and that the engine is driven are satisfied. When actual rotational speed display conditions are satisfied, it can be predicted that differences between an engine rotational speed and a turbine rotational speed before and after shifting are large, and so the electronic control unit sets a current engine rotational speed as the meter target rotational speed or ends the control.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: August 21, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiyuki Teratani, Osamu Kanai, Yuki Murakami
  • Patent number: 10000206
    Abstract: When an electrical continuously variable transmission malfunctions and the operation of an engine is stopped, an automatic transmission is caused to upshift. Therefore, when the rotation of the engine is stopped as a result of a stop of the operation, an AT input rotation speed is decreased as compared to that before it is determined that there is a malfunction in the electrical continuously variable transmission. Thus, an MG1 rotation speed is decreased in absolute value as compared to when the automatic transmission is not caused to upshift, so an overspeed of a first electric motor is prevented.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: June 19, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobufusa Kobayashi, Masato Yoshikawa, Takaaki Tanaka
  • Patent number: 9944269
    Abstract: A system and method for controlling a step-ratio transmission gearshift during a regenerative braking event for a hybrid vehicle having an engine selectively coupled to an electric machine and an automatic transmission control transmission input torque based on a measured shift profile and a target shift profile. A torque trim term may be added to the transmission input torque or electric machine output torque in response to a difference between the measured and target shift profiles. The torque trim term may be used to modify the transmission input torque to speed the shift up or shorten the shift time if the measured shift is progressing too slowly. Likewise, the torque trim term may be used to reduce the transmission input torque or electric machine output torque if the shift is progressing too quickly relative to the target shift profile.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: April 17, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Bernard D. Nefcy, Daniel Scott Colvin, Felix Nedorezov, Todd McCullough
  • Patent number: 9939061
    Abstract: A check valve includes a check valve body and a check valve member. The check valve body includes a check valve outlet port and a check valve oil path. The check valve member is movable in the check valve oil path to move in a first direction in which the check valve member is pushed by hydraulic fluid due to hydraulic pressure from a hydraulic pump. A switching valve includes a switching valve body. The switching valve body includes a switching valve inlet port connected to the check valve outlet port and a receiving surface facing the check valve outlet port. The check valve member contacts the receiving surface after the hydraulic pump starts providing hydraulic pressure. The switching valve body is supported by a valve body via a first O-ring and a second O-ring such that the switching valve body is movable in the first direction.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: April 10, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shogo Kobayashi, Tomoaki Mukai, Shunsuke Yoshida
  • Patent number: 9906185
    Abstract: The invention relates to a method for detecting a short circuit between the phases of a polyphase synchronous machine (1) comprising a stator (2) and a rotor (3), said machine being fitted with at least one angular position sensor (1a) of the rotor (3), the rotor (3) comprising means for generating a magnetic induction provided to move said rotor around the stator (2), the angular position sensor (1a) comprising at least two magnetic induction measurement sensors (6), the induction measurement sensors (6) extending to an axial end (3a) of the rotor (3), facing and immediately adjacent to the axial edges (4a) of the means for generating a magnetic induction, characterized in that said method consists of: i1) using the values measured and supplied by the induction measurement sensors, i2) calculating the gradient of the curve of the measured values as a function of time, i3) comparing the calculated gradient with a threshold value, Vs, and i4) if the calculated gradient is greater than or equal to the threshold
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: February 27, 2018
    Assignee: LOHR ELECTROMECANIQUE
    Inventor: Pierre Dumas
  • Patent number: 9868432
    Abstract: A system for a vehicle includes a transmission, an engine, and a controller communicably coupled to the transmission and the engine. The controller is structured to receive a vehicle operating parameter, receive vehicle operation data during operation of the vehicle, determine that the vehicle is in a coasting state based on the vehicle operation data, and provide a command to control at least one of an engine and the transmission during the coasting state to at least one of optimize the vehicle operating parameter and facilitate and maintain the coasting state.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: January 16, 2018
    Assignee: Cummins, Inc.
    Inventors: Vivek A. Sujan, Daniel R. Dempsey
  • Patent number: 9731725
    Abstract: A method for controlling a vehicle driveline includes determining, for current vehicle operating conditions, an initial engine output torque, at which the driveline meets predetermined structural criteria, establishing a factor that varies with torque converter slip, determining an engine torque limit by multiplying the factor corresponding to a current torque converter slip by the initial engine output torque, and limiting torque produced by an engine connected to the driveline to the engine torque limit.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 15, 2017
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Bradley D. Riedle, Brad W. Probert, Jianping Zhang, Kenneth E. Sovel
  • Patent number: 9696333
    Abstract: A display control apparatus for a meter is provided. The display control apparatus includes an electronic control unit. The electronic control unit is configured to: (i) when a shift start condition of an automatic transmission is satisfied, calculate an estimated rotation speed of an engine by adding a correction amount commensurate with a state of a torque converter to a turbine rotation speed of the torque converter, the turbine rotation speed corresponding to a gear position after a shift; (ii) control the meter such that a rotation speed displayed on the meter is brought close to the estimated rotation speed; and (iii) when a fixing condition, including that the shift start condition for a downshift is satisfied and the engine is driven from the torque converter side, is satisfied, fix the correction amount to a value at the time when a start of the shift is determined.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: July 4, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiyuki Teratani, Masayasu Mizobuchi
  • Patent number: 9664594
    Abstract: Various method for operating an engine responsive to transmission shifts under non-fueling conditions are provided. In one example, a method of operating an internal combustion engine comprises deactivating at least one engine cylinder, performing a diagnostic while the at least one engine cylinder is deactivated and while the engine is operating under high load, predicting a transmission shift, and responsive to the predicted transmission shift, reducing engine load below the high load and terminating the diagnostic.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: May 30, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel A. Makled, Gopichandra Surnilla, Jeffrey Allen Doering, Brian Shu, Stephen B. Smith