With Clutch Control Patents (Class 477/5)
  • Patent number: 10293828
    Abstract: An engine starting system for hybrid vehicle is provided. The engine starting system is applied to a hybrid vehicle in which a friction clutch is disposed between an engine and a power distribution device. In order to reduce gear noise and vibrations, a second motor establishes a cancel torque to cancel a reaction torque acting on an axle when starting the engine. The engine starting system is configured to increase the torque of the second motor in a direction of a drive torque rotating the axle, when starting the engine while bringing the friction clutch into engagement in a slipping manner.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 21, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yasuhiro Oshiumi
  • Patent number: 10253876
    Abstract: A vehicle regenerative speed control device is provided for suppressing undershooting, in which an actual transmission input rotational speed falls below a lower-limit rotational speed, when decreasing a transmission input rotational speed based on a request for a decrease in the regeneration amount during regenerative speed control. The vehicle regenerative speed control device includes a controller which performs a regenerative speed control for downshifting a continuously variable transmission to a low gear ratio side and increasing a rotational speed of a transmission input shaft to which a motor generator is connected when there is a request for an increase in the regeneration amount while decelerating.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: April 9, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takanobu Mouri, Takahiro Yoshino, Yuuzou Kageyama, Masashi Ono, Hideki Maruyama, Takuya Ishizuka
  • Patent number: 10246082
    Abstract: A drive system for a vehicle comprises an electrical machine, arranged between a combustion engine and an input shaft to a gearbox. The rotor of the electrical machine is connected with a component of a planetary gear, and the input shaft of the gearbox is connected with another component of such planetary gear. A first locking means may be moved between a locked position, in which the planetary gear's three components rotate at the same rotational speed, and a release position, in which the components are allowed to rotate at different rotational speeds. A second locking means is moveable between a locked position in which the output shaft of the combustion engine is locked together with a component in the planetary gear, and a release position, in which the combustion engine's output shaft is decoupled from such a component.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: April 2, 2019
    Assignee: Scania CV AB
    Inventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
  • Patent number: 10239513
    Abstract: A method for obtaining gear shifting of a vehicle, where the vehicle has a planetary gearing in the drive train, a combustion engine with an output shaft connected to a rotor of a second electric machine and to a first component of the planetary gearing, a first electric machine with a rotor connected to a third component of the planetary gearing and an input shaft of a gearbox connected to a second component of the planetary gearing. The method is started with the components of the planetary gearing interlocked by a locking means, in which they are released during the gear shifting and interlocked again after the gear shifting has been carried out.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: March 26, 2019
    Assignee: Scania CV Ab
    Inventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
  • Patent number: 10232853
    Abstract: A control device for a vehicle includes a fuel cell, a motor-generator, a power unit, a transmission, a motor-generator control unit configured to perform a power control on the motor-generator based on a driver request torque, and a generated power control unit configured to control the generated power of the fuel cell based on a load of the fuel cell including the motor-generator. The motor-generator control unit performs a shifting power control for decreasing a rotation speed of the motor-generator during an upshift of the transmission, and a power control on the motor-generator based on a limit torque of the motor-generator during the shifting power control. The limit torque of the motor-generator being calculated based on an actual generated power of the fuel cell per unit time and an acceptable power of the power unit per unit time.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: March 19, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Mitsunori Kumada, Ryohey Toyota
  • Patent number: 10220830
    Abstract: A system and method are provided for hybrid electric internal combustion engine applications in which a motor-generator, a narrow switchable coupling and a torque transfer unit therebetween are arranged and positioned in the constrained environment at the front of an engine in applications such as commercial vehicles, off-road vehicles and stationary engine installations. The motor-generator is preferably positioned laterally offset from the switchable coupling, which is co-axially-arranged with the front end of the engine crankshaft. The switchable coupling is an integrated unit in which a crankshaft vibration damper, an engine accessory drive pulley and a disengageable clutch overlap such that the axial depth of the clutch-pulley-damper unit is nearly the same as a conventional belt drive pulley and engine damper. The front end motor-generator system includes an electrical energy store that receives electrical energy generated by the motor-generator when the coupling is engaged.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: March 5, 2019
    Assignee: Bendix Commercial Vehicle Systems
    Inventors: David Colavincenzo, Fernando Venegas Diaz
  • Patent number: 10220828
    Abstract: An engine idle operation control method and system are provided to improve the fuel efficiency of a vehicle through maintenance of efficient battery SOC and charge control during the engine-on for heating of a vehicle. The method includes receiving an engine-on request for heating of the vehicle and determining a road condition. A target charge power is determined and set as a value corresponding to the road condition and battery state information. A basic idle RPM set as a value corresponding to the road condition, the target charge power, and the outdoor temperature is determined. A compensation RPM and a target idle RPM are determined by compensating for the basic idle RPM by the compensation RPM to adjust the engine idle driving into the determined target idle RPM during the heating of the vehicle.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: March 5, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: In Eok Cho, Hoon Han, Yong Kak Choi, Il Kwon Park
  • Patent number: 10215241
    Abstract: A system and method for operating a vehicle equipped with an automatic stop and start system is disclosed. The vehicle includes an internal combustion engine, an automatic transmission and a fluid launch device with an impeller disconnect clutch. A controller may initiate an automatic stop or start of the engine under certain operating conditions. During an engine start/stop event, the engine is automatically shut down and the impeller clutch of the fluid launch device may be disengaged to decouple the engine and transmission from the driveline to provide for improved fuel economy and reduced emissions.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: February 26, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Hafiz Shafeek Khafagy, Siraj Siddiqui, Steven Anatole Frait, Alexander O'Connor Gibson, Mohannad Hakeem
  • Patent number: 10190511
    Abstract: A method for running a vehicle (100) that includes a combustion engine (101) which can selectively be connected to a driveshaft (104, 105). When the vehicle (100) is in motion and is approaching a downgrade, determining whether the engine (101) can be disconnected from the driveshaft (104, 105) for at least a first period of time (T1), and disconnecting the driveshaft (104, 105) for at least the first period of time (T1); and the engine (101) also is switched off for the first period (T1). A system that performs the method and a vehicle that performs it are disclosed.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: January 29, 2019
    Assignee: SCANIA CV AB
    Inventors: Mustafa Abdul-Rasool, Oskar Johansson, Mikael Ögren
  • Patent number: 10189462
    Abstract: A hybrid vehicle is equipped with an engine that is connected to a power split mechanism, a generator, an electric motor, and also a stepped transmission that is arranged between the electric motor and a drive shaft. An electronic control unit (an ECU) with which this hybrid vehicle is equipped revises a down line downward to make a downshift likely to occur when at least one of a prescribed generator condition and a prescribed electric motor condition is fulfilled. The generator condition includes that the temperature of the generator is equal to or higher than a first reference temperature and that an absolute value of a rotational speed of the generator decreases due to the making of the downshift. The electric motor condition includes that the temperature of the electric motor is equal to or higher than a third reference temperature.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: January 29, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiko Miyamoto, Tateki Hanashima, Kenta Kumazaki
  • Patent number: 10179582
    Abstract: A vehicle transmission system having a combustion engine, an electric motor and a transmission includes a first clutch operatively connected between the engine and the motor and a one way clutch. The one way clutch is connected in parallel with the first clutch that permits the engine to increase speed with the clutch disengaged until the engine speed matches the motor speed. The engine provides positive torque through the one way clutch to the motor and transmission upon matching the motor speed. The first clutch and the one way clutch may be a hybrid rocker one way clutch.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: January 15, 2019
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Walter Joseph Ortmann, Daniel Scott Colvin, Bernard D. Nefcy
  • Patent number: 10160442
    Abstract: For a hybrid vehicle including: an engine and a motor, each of which is mounted as a driving source; a generator driven by the engine; a high-voltage battery and a low-voltage battery, each of which can be charged and discharged; a converter connected between the high-voltage battery and the low-voltage battery; and an auxiliary load that consumes electric power supplied from the high-voltage battery via the converter or electric power supplied from the low-voltage battery, a control device includes a control unit that executes converter limit control that stops the converter or reduces output of the converter when a state of charge of the high-voltage battery is lower than or equal to a predetermined threshold.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: December 25, 2018
    Assignee: DENSO CORPORATION
    Inventors: Mitsuharu Higashitani, Tsuyoshi Okamoto, Noriaki Ikemoto
  • Patent number: 10151360
    Abstract: A method for controlling a clutch includes judging whether or not a slip amount of the clutch is reduced to below a first reference value by a controller after starting of the vehicle is launched, judging whether or not accumulated slip energy of the clutch until a present time from the launch of starting the vehicle is a second reference value or more, as a result of judgment as to the slip amount of the clutch, if the slip amount of the clutch is below the first reference value, and controlling engagement of the clutch so as to prevent overheating of the clutch while the controller causes an engine to maintain a target engine speed, as a result of the judgment as to the accumulated slip energy, if the accumulated slip energy is the second reference value or more.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 11, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jin Sung Kim, Ju Hyun Nam
  • Patent number: 10150466
    Abstract: A shift control apparatus for a hybrid vehicle, capable of moving backward through control of a motor and a transmission. The shift control apparatus for the hybrid vehicle includes an engine as a power source; first and second motors connected to the engine; an engine clutch positioned between the engine and the first motor and selectively connecting the engine and the first motor; a transmission receiving a driving torque from at least one of the engine and first motor by a release or an engagement of the engine clutch; and a vehicle controller releasing the engine clutch if a backward moving request signal is input. The shift control apparatus further confirms a backward moving torque amount when the speed of the vehicle is a reference speed or less, and controls the first motor based on the backward moving torque amount for the vehicle to be moved backward.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: December 11, 2018
    Assignee: Hyundai Motor Company
    Inventors: Hyungsouk Kang, Hyung Bin Ihm, Tae Young Chung
  • Patent number: 10150468
    Abstract: A shift strategy is provided for a hybrid electric vehicle to cause a speed of a motor to approach a target motor speed to increase fuel economy for an engine operating in a hybrid drive mode. A controller shifts the transmission according to a magnitude of a driver torque demand, the current rotor or impeller speed, and whether the motor is consuming or producing current. The controller shifts the transmission according to one shift schedule when the motor is motoring, and according to another shift schedule when the motor is generating power.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: December 11, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaoyong Wang, Wei Liang, Ming Lang Kuang, Rajit Johri, Daniel Scott Colvin, Mark Steven Yamazaki
  • Patent number: 10144426
    Abstract: When the control unit monitoring the dual clutch transmission detects input signals from the driver and/or the prime mover and transmission indicating that the free-wheeling mode should be exited, then the transmission is controlled to reconnect the prime mover and the driving wheels. According to the invention, a rapid reconnection of the prime mover to the driven wheels is achieved by engaging the second, normally open clutch unit. Prior to engagement, the control unit can select a suitable gear depending on the input signals from the driver and/or the prime mover. As none of the first set of gears connecting the first input shaft to the driving wheels in the first transmission mechanism is engaged, the first clutch unit can be disengaged during or after engagement of the second clutch unit.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: December 4, 2018
    Assignee: Volvo Truck Corporation
    Inventor: Klas Bergström
  • Patent number: 10137767
    Abstract: A power transmission unit that can prevent an entrance of excessive torque to the powertrain is provided. The power transmission unit includes a transmission that transmits torque between an engine and drive wheels; a locking device that selectively halts a rotation of an output shaft of the engine; a transmission case holding a first motor, a second motor, the transmission, and the locking device; a first torque limiter disposed between the engine and the locking device to restrict torque transmitted between the drive wheels and the engine; and a second torque limiter held in the transmission case to restrict torque transmitted between the drive wheels and the locking device.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: November 27, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroto Hashimoto, Tomohito Ono, Hiroaki Kimura
  • Patent number: 10125847
    Abstract: A transmission includes a main gear set, an auxiliary gear set and an electric motor with a rotor and a stator. A third shaft of the main gear set is connected to a transmission output shaft. A second shaft of the auxiliary gear set is connectable through a first auxiliary shift element to a first shaft of the main gear set and through a second auxiliary shift element to the third shaft of the main gear set or to a fourth shaft of the main gear set. A third shaft of the auxiliary gear set is constantly connected to a second shaft of the main gear set. A first shaft of the auxiliary gear set is constantly connected to the rotor.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: November 13, 2018
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Peter Ziemer, Raffael Kuberczyk, Christian Sibla, Andreas Beisswenger, Eckehard Münch
  • Patent number: 10124795
    Abstract: A driving force control system for a hybrid vehicle is provided to reduce a shock resulting from switching a travelling direction between the forward direction and the backward direction. The control system is applied to a hybrid vehicle in which an operating mode can be selected at least from a series mode and a series parallel mode. A travelling direction of the vehicle is switched by a shifting device between forward direction and backward direction. A controller is configured to maintain the previous operating mode after switching the travelling direction of the vehicle by the shifting device.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: November 13, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Kawanishi, Atsushi Tabata, Tatsuya Imamura
  • Patent number: 10113476
    Abstract: Methods and systems are provided for a vehicle engine including a turbocharger coupled to a hydraulic pump and hydraulic accumulator. In one example, a method may include, in response to the vehicle coming to a stop, supplying pressure to a hydraulic braking system of the vehicle from the accumulator coupled to a hydraulic pump coupled to a shaft of a turbocharger of an engine installed in the vehicle, and automatically shutting down the engine while the vehicle is stopped.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: October 30, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Brien Lloyd Fulton, Dave R. Hanna
  • Patent number: 10106144
    Abstract: A vehicle system controller is configured to determine a current buffer ratio for a first energy buffer based on a current buffer energy level for the first energy buffer and a predetermined buffer range for the first energy buffer, and determine if the current buffer ratio for the first energy buffer should be increased using energy provided by a power converter, the determination being based on the current buffer ratio for the first energy buffer and a cost for generating energy from energy stored in a second energy buffer using the power converter.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: October 23, 2018
    Assignee: Volvo Truck Corporation
    Inventors: Mikael Askerdal, Mattias Åsbogård
  • Patent number: 10099682
    Abstract: A hybrid vehicle includes an engine, a traction motor, a battery, and a controller. The controller is programmed to, responsive to the engine achieving maximum torque capacity while the engine and motor operate to completely satisfy a demand that exceeds the maximum torque capacity, maintain the engine at the maximum torque capacity and reduce torque output of the motor to a non-zero value such that the engine and motor do not operate to completely satisfy the demand.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: October 16, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Rajit Johri, Fazal Urrahman Syed, Justin Panhans
  • Patent number: 10099687
    Abstract: It is preferable to reduce an uncomfortable feeling arising from an abrupt driving force generated in an automatic starting clutch in an automatic clutch vehicle. When an automatic clutch operating device is about to automatically engage a starting clutch, a brake controller drives a brake actuator to forcibly actuate a brake device, thereby braking a driving wheel WR. Here, a brake pressure to be applied to the driving wheel WR can be set as a brake pressure such as to change an expected driving torque which is accompanied by an uncomfortable feeling in the absence of control by the brake controller into a norm driving torque which is not accompanied by the uncomfortable feeling, taking into account the clutch capacity and an engine control output.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: October 16, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kenjiro Iwasaki, Tetsuya Kudoh
  • Patent number: 10081363
    Abstract: A control apparatus of a powertrain with a centrifugal pendulum absorber, includes an engine formed with a plurality of cylinders, a drive force transmission shaft for receiving an engine output torque, a centrifugal pendulum absorber for reducing a variation in the output torque, a connect-disconnect mechanism, an engine controlling module for shifting an engine operating state between an all-cylinder operation and a reduced-cylinder operation, and a connection controlling module. The connection controlling module shifts a connecting state of the connect-disconnect mechanism to a first state when the engine is in the all-cylinder operation, and shifts the connecting state to a second state in which the connection is tighter than the first state when the engine is in the reduced-cylinder operation. In response to issued requests to shift the engine operating state, the connection controlling module shifts the connecting state, and the engine controlling module shifts the engine operating state.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 25, 2018
    Assignee: Mazda Motor Corporation
    Inventors: Kyosei Nakashima, Yasunari Nakayama, Tadashi Saito, Masaru Nakagishi, Narifumi Domen, Narihito Hongawara
  • Patent number: 10081351
    Abstract: The present invention provides a method for controlling an engine unit in a vehicle. The vehicle includes an engine unit, a transmission unit adapted to selectively couple with the engine unit and also configured to transmit the power generated by the engine unit, a first motor generator coupled with the transmission unit, an output unit, a power switching device, a second motor generator configured to drive at least one of front and rear wheels, and a power battery that is respectively connected to the first motor generator and the second motor generator. The method includes: acquiring an operating mode of a vehicle and an operating parameter of the vehicle; and controlling an engine unit according to an operating parameter and an operating mode to start or stop.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: September 25, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Patent number: 10065640
    Abstract: The present disclosure discloses a cruise control method for a vehicle. The vehicle includes an engine unit, a transmission unit, a first motor generator, an output unit, a power switching device, a second motor generator, and a power battery. The cruise control method includes the following steps: when a signal for a vehicle to enter cruise control is detected, determining whether the vehicle meets a preset cruise control condition; and if the vehicle meets the preset cruise control condition, controlling the vehicle according to a current operating mode of the vehicle to enter a corresponding cruise mode, where when the current operating mode of the vehicle is an EV mode, the vehicle is controlled to enter an EV cruise mode, and when the current operating mode of the vehicle is an HEV mode, the vehicle is controlled to enter an HEV cruise mode. The present disclosure further discloses a vehicle.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: September 4, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Patent number: 10065633
    Abstract: A hybrid vehicle includes an electronic control unit configured to, when the drive mode is changed from one of the series-parallel mode and the parallel mode to the other one of the series-parallel mode and the parallel mode and the speed stage is changed from one of the low speed stage and the high speed stage to the other one of the low speed stage and the high speed stage, selectively execute either one of a first control and a second control. The first control is control in which the drive mode and the speed stage are changed by passing through the series mode. The second control is control in which one of the drive mode and the speed stage is changed and then the other one of the drive mode and the speed stage is changed without passing through the series mode.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: September 4, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hidehiko Banshoya, Atsushi Tabata, Toshiki Kanada, Haruhisa Suzuki, Atsushi Kawamoto, Tatsuya Imamura, Kiyonori Takagi
  • Patent number: 10029582
    Abstract: A method is provided for operating a motor vehicle which has at least one electric machine as a driving device. The method includes examining a current driving situation to determine whether a target position can be reached with a target speed by coasting; displaying a message to a driver of the motor vehicle if the target position can be reached by coasting; detecting a reaction time of the driver from the message up to the initiation of a coasting process by the driver; and actuating the electric machine as a generator to generate a deceleration torque if the reaction time exceeds a predefinable limiting value.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: July 24, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Erik Herzhauser, Sebastian Auracher, Christoph Junker
  • Patent number: 10017171
    Abstract: A method for reducing energy of torque for electrically boosting acceleration of a hybrid vehicle including a power train, a heat engine, an electric machine capable of jointly or separately outputting a torque to a wheel in accordance with management laws optimizing energy consumption of the vehicle, and a traction battery which is capable of recovering all or part of kinetic energy of a decelerating vehicle in a form of electric energy, and rechargeable via the heat engine. In the method electric boost torque available for the torque boost is reduced by a reduction coefficient of 0 to 1 according to an amount of energy remaining in an energy range of the battery reserved for the torque boost.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: July 10, 2018
    Assignee: RENAULT s.a.s.
    Inventors: Loic Le Roy, Jean-Martin Ruel
  • Patent number: 10017173
    Abstract: An apparatus for controlling a torque intervention of a hybrid vehicle includes a driving information detector for detecting a torque intervention request of the hybrid vehicle, and a controller for deriving a target motor torque and a target engine torque depending on a required torque variation when the torque intervention is requested, the target motor torque being derived so that a high voltage battery does not deviate from a state of charge (SOC) charging and discharging limit, the target motor torque limiting the target engine torque to be equal to or less than a target engine torque before the intervention request to obtain a final engine torque, and the target motor torque correcting the target motor torque to a final motor torque depending on the final engine torque.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: July 10, 2018
    Assignee: Hyundai Motor Company
    Inventors: Sang Joon Kim, Gwang Il Du, Teh Hwan Cho, Ji Hoon Kang, Seong Ik Park
  • Patent number: 9988039
    Abstract: A method for operating a drive apparatus including an internal combustion engine and an electric engine. An output shaft of the drive apparatus can be operatively connected to the internal combustion engine by way of a shifting clutch and can be permanently operatively connected to the electric engine, so that the output shaft is disengaged from the internal combustion engine in a first shifting state of the shifting clutch and is engaged with it in a second shifting state.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: June 5, 2018
    Assignee: AUDI AG
    Inventor: Alexander Brusberg
  • Patent number: 9982776
    Abstract: A method for protecting a clutch for a Dual Clutch Transmission may include an input step of receiving an input of a temperature of a clutch, and a gear shift pattern changing step of changing a preset gear shift pattern and operating to perform gear shift in a vehicle speed region that secedes from a vehicle speed of the preset gear shift pattern when the temperature of the clutch is equal to or higher than a first reference temperature.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: May 29, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corp.
    Inventors: Young Min Yoon, Jin Sung Kim, Hyung Hee Lee, Sung Hyun Cho, Ho Sung Kim
  • Patent number: 9937917
    Abstract: A driving control method for a hybrid vehicle is provided to overcome a slip of the vehicle by a conversion of an EV mode into an HEV mode. The driving control method includes: determining by a controller whether the hybrid vehicle is insufficiently driven backward only by power of a motor when the vehicle is driven backward on an uphill road by driving the motor backward; starting an engine and engaging a backward stage gear; releasing a first clutch and at the same time requesting a brake operation signal to the hybrid vehicle while the motor is converted into forward driving; and then engaging a second clutch and requesting a brake release signal to the hybrid vehicle while an engine clutch is engaged to control the hybrid vehicle to be started by the power of the motor and the engine.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: April 10, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Young Min Yoon
  • Patent number: 9937925
    Abstract: The present disclosure provides a shift control method for a hybrid vehicle with a DCT that includes: a shifting state-determining step in which a controller determines whether an inertia phase of power-off down-shift is entered; a motor torque-adjusting step that request to reduce regenerative braking torque of a motor as much as a predetermined requested reduction amount, when the controller determines that the inertia phase has been entered in the shifting state-determining step; and a clutch torque-reducing step that ends the motor torque-adjusting step and reduces torque of an engagement clutch, when the requested reduction amount of the regenerative braking torque of the motor is less than zero while the controller performs the motor torque-adjusting step.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: April 10, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Hyun Cho, Ju Hyun Nam
  • Patent number: 9915339
    Abstract: A drive force transmission device is provided with a motor shaft, a transmission input shaft, a drive side sprocket, a resolver rotor and a cylindrical resolver retainer. The motor shaft is configured to be connected to a motor rotor of a motor. The driving force transmission shaft is coaxially connected to the motor shaft. The oil pump sprocket is provided on the driving force transmission shaft for rotating an oil pump. The resolver rotor is disposed on the motor shaft adjacent the oil pump sprocket for detecting a rotational position of the motor. The cylindrical resolver retainer is coaxially disposed on the motor shaft to fix the resolver rotor to the motor shaft. The resolver retainer includes a stopper that forms an axial positioning surface for the resolver rotor by contacting an end portion of the motor shaft, and an axial position limiting surface of the oil pump sprocket.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 13, 2018
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuo Takagi, Kazuhiro Miyachi
  • Patent number: 9863487
    Abstract: The present disclosure provides a shifting control method for a DCT vehicle which includes determining, by a controller, whether an entry condition is satisfied, the entry condition including information about whether a tip-out occurs while a power-on upshift torque phase is being performed, and when the entry condition is satisfied, responding, by the controller, to the tip-out where the controller controls an engaging clutch and a disengaging clutch using the calculated torque.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 9, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Hyun Cho, Ju Hyun Nam
  • Patent number: 9840248
    Abstract: A method for preventing engine clutch hazard of a hybrid vehicle includes: transmitting, by a safety module of a controller, a signal which instructs an engine clutch to be engaged or released to a safety module of an actuator that drives the engine clutch that connects an engine with a motor or disconnects the engine from the motor; and controlling, by the safety module of the actuator, the engine clutch to perform a normal operation based on the signal.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: December 12, 2017
    Assignee: Hyundai Motor Company
    Inventors: Yeon Bok Kim, Young Joon Chang, Jeong Soo Eo, Daero Park
  • Patent number: 9829093
    Abstract: A first transmission mechanism provided on a first power transmission path and a second transmission mechanism provided on a second power transmission path are provided in parallel with each other between a driving force source and a drive wheel. A first clutch mechanism transmits power or interrupts transmission of power in the first power transmission path. A dog clutch equipped with a synchromesh mechanism transmits power or interrupts transmission of power in the second power transmission path. An electronic control unit is configured to, when changing from the first transmission path to the second transmission path a state where the vehicle is stopping or is stationary and in a state where power of the driving force source is transmitted via the first transmission mechanism, actuate the first clutch mechanism and the second clutch mechanism such that the first clutch mechanism is released and the second clutch mechanism engages.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: November 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiromitsu Nitani, Atsushi Ayabe, Kazuya Sakamoto, Hiroki Kondo, Mitsuhiro Fukao, Kenji Matsuo
  • Patent number: 9809103
    Abstract: A transmission for a hybrid vehicle includes an input shaft connected to an engine, an output shaft disposed in parallel with the input shaft, a first hollow shaft installed on an outer peripheral surface of one side of the input shaft, a second hollow shaft installed on an outer peripheral surface of the other side of the input shaft, a first motor connected to the first hollow shaft, a second motor connected to the second hollow shaft, a first speed-shifting output part provided between the first hollow shaft and the output shaft, a second speed-shifting output part provided between the second hollow shaft and the output shaft, a first synchronizer synchronously connecting the first hollow shaft to the first speed-shifting output part, and a second synchronizer synchronously connecting the second hollow shaft to the second speed-shifting output part.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: November 7, 2017
    Assignee: Hyundai Motor Company
    Inventor: Sung Gon Byun
  • Patent number: 9797506
    Abstract: A method for monitoring a fixed-gear transmission includes deriving a node speed relationship for each of the planetary gear sets based upon a center distance and a gear ratio and determining equivalent speed parameters for nodes of the planetary gear sets based upon a transmission input speed state, an intermediate node speed state and a transmission output speed state. A clutch slip speed relationship is determined for each of the clutches based upon the node speed relationships for the planetary gear sets and the equivalent speed parameters for nodes of the planetary gear sets. Rotational speed sensors monitor the input transmission speed, the intermediate node speed and the transmission output speed. A clutch slip speed for each of the clutches is determined based upon the respective clutch slip speed relationship and the monitored input transmission speed, the monitored intermediate node speed and the monitored transmission output speed.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: October 24, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Brian J. Pellerito, Dara Monajemi, Brian H. Fiore, Joel H. Gunderson
  • Patent number: 9770971
    Abstract: A first ring gear of a drive unit is connected to a second carrier and is mechanically connected to a counter shaft. A first sun gear is connected to a second sun gear and a first rotary electric machine. A first clutch selectively switches between a connection state and a disconnection state of the first sun gear and an engine. A second clutch selectively switches between a connection state and a disconnection state of a first carrier and the engine. A brake selectively switches between a fixed state and a release state of a second ring gear to and from a fixing member.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: September 26, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hidehiro Oba
  • Patent number: 9758149
    Abstract: A vehicle includes an engine, an electric machine, an engine disconnect clutch, and a transmission input configured to transmit power from the engine and electric machine to a transmission. The vehicle also includes a controller program to close the disconnect clutch and start the engine before downshifting in response to an anticipated transmission downshift in which a predicted speed of the transmission input after the downshift will be outside a predetermined speed range or a torque capacity of the electric machine will be less than a predicted required torque after the downshift.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 12, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Jeffrey Allen Doering, Xiaoyong Wang, Felix Nedorezov, Chen Zhang, Todd McCullough, Rajit Johri
  • Patent number: 9751392
    Abstract: A hybrid power-train includes an input shaft connected to an engine and an output shaft disposed in parallel with the input shaft. A motor is connected to the input shaft and the output shaft. A drive mechanism connects the engine, the motor, and the output shaft. A plurality of clutches are operable for coupling and releasing, respectively, to perform a mode conversion.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: September 5, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Yeong Il Choi
  • Patent number: 9744840
    Abstract: A power transmitting apparatus may include a first input shaft to selectively receive torque of an engine, a second input shaft to selectively receive the torque of the engine and having at least one input gear, a third input shaft selectively connected to the second input shaft and having at least one input gear, a motor/generator operated as a motor or a generator, a planetary gear set including a first rotation element directly connected to the motor/generator, a second rotation element directly connected to the third input shaft, and a third rotation element directly connected to the first input shaft, a first speed output unit adapted to convert torque input from the second input shaft or the third input shaft and output the converted torque, and a second speed output unit to convert torque input from the second input shaft or the third input shaft and output the converted torque.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: August 29, 2017
    Assignee: Hyundai Motor Company
    Inventors: Kyeonghun Lee, Jongmin Kim, Jongsool Park, Byunghyun Lee, Suengho Lee, Seongwook Hwang, Minjun Song
  • Patent number: 9739222
    Abstract: A method for controlling torque intervention of a hybrid electric vehicle during a shift includes judging whether or not torque intervention control is necessary, determining a torque intervention demand according to states of a motor and an HSG, upon judging that torque intervention control is necessary, and executing torque intervention control by HSG and motor torque reduction amounts under the condition that engine torque is maximally maintained based on the determined torque intervention demand.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: August 22, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Dong Jun Shin, Jee Wook Huh
  • Patent number: 9731708
    Abstract: Disclosed is a startup control method for a hybrid vehicle, the method including judging, by a controller, whether starting motion of the vehicle is possible using only a motor or whether starting motion of the vehicle additionally requires power of an engine, preparing the power of the engine, by the controller, by igniting the engine and also initiating engagement of a driving gear when it is judged that starting motion of the vehicle additionally requires the power of the engine, and linearly increasing a torque of the motor to a maximum value, and completing the remainder of a motion start process by increasing a torque of a clutch while increasing a torque of the engine, by the controller, when transmission of the power of the engine to a drive wheel becomes possible via the preparation of the power of the engine.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: August 15, 2017
    Assignee: Hyundai Motor Company
    Inventor: Sung Hyun Cho
  • Patent number: 9714027
    Abstract: Methods and systems are provided for improving engine restart operations occurring during a transmission shift in a hybrid vehicle. Engine speed is controller during cranking and run-up to approach a transmission input shaft speed that is based on the future gear of the transmission shift. Engine speed is controlled via adjustments to spark, throttle, and/or fuel, to expedite engine speed reaching the synchronous speed.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: July 25, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Mark Steven Yamazaki, Jeffrey Allen Doering, Wei Liang, Rajit Johri, Xiaoyong Wang, Ming Lang Kuang, Scott Thompson, David Oshinsky, Dennis Reed, Adam Banker
  • Patent number: 9707954
    Abstract: A method is provided for operating a hybrid drive train of a hybrid vehicle. The drive train has an internal combustion engine, a first electric machine, a transmission with an input shaft, a separating element and a first axle. The internal combustion engine can be connected to the first electric machine via the separating element. When the separating element is opened and the internal combustion engine is stationary, a difference in rotational speed occurs at the separating element between the internal combustion engine and the rotating first electric machine. The separating element is opened below and up to a maximum permissible difference in rotational speed at the separating element to drive the hybrid vehicle purely electrically by the first electric machine or to brake the vehicle or to coast. Above the maximum permissible difference in rotational speed the separating element and the first electric machine are separated from one another.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: July 18, 2017
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Martin Fuechtner
  • Patent number: 9701304
    Abstract: A selectively actuatable one-way clutch is controlled to brake or release a generator such that a powersplit hybrid powertrain enters or exits a parallel mode of operation. To brake the generator and enter the parallel mode, the clutch is activated while overrunning the generator before the generator is slowed to engage the clutch. To release the generator and exit the parallel mode, the generator is controlled to overrun the clutch before deactivating the clutch and returning the generator to a base speed control.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: July 11, 2017
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Bernard D. Nefcy, Marvin P. Kraska, Daniel S. Colvin, Walter J. Ortmann
  • Patent number: 9664277
    Abstract: The present disclosure relates to a control method of a dual clutch transmission for a vehicle and a control system for the dual clutch.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 30, 2017
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Dong Hoon Jeong, Joung Chul Kim