Differential Drive Or Control Patents (Class 475/150)
  • Patent number: 10774913
    Abstract: The power distribution device includes: a double pinion first planetary gear mechanism including a first sun gear, a first carrier, and a first ring gear; and a double pinion second planetary gear mechanism including a second sun gear, a second carrier, and a second ring gear. The first sun gear and the second carrier are connected to each other and connected to a first motor, and the first carrier and the second sun gear are connected to each other and connected to a second motor. The first ring gear and the second ring gear are respectively connected to a right output shaft and a left output shaft, and a gear ratio of the first ring gear to the first sun gear and a gear ratio of the second ring gear to the second sun gear are set to the same value.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: September 15, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventor: Shigeru Koyama
  • Patent number: 10697528
    Abstract: Disclosed herein are systems, gearing assemblies and methods for controlling a differential rotation rate between shafts of a vehicle using a variable speed reversible motor. An embodiment includes a gearing assembly including a differential configured to engage a first axle shaft, a second axle shaft, and a drive shaft of a vehicle. The gearing assembly further includes a first plurality of alignment gears and a second plurality of adjustment gears configured to engage the differential, configured to be driven by a variable speed reversible motor of the vehicle, and configured to controllably alter a rotation rate of a first axle shaft relative to a rotation rate of the second axle shaft based on rotation produced by the variable speed reversible motor.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: June 30, 2020
    Inventor: Shaun Chu
  • Patent number: 10663051
    Abstract: An electric differential with a torque vectoring function. The electric differential includes: a main drive mechanism; a bevel gear differential; a TV control drive mechanism used for outputting control power; a first single-row planetary gear train, of which a first sun gear is coaxially and fixedly connected with a first half shaft and a first planet carrier is connected with a control output end; a second single-row planetary gear train, of which a second planet carrier is fixed to a drive axle housing, a second gear ring is fixedly connected with a first gear ring and a second sun gear is supported on the first half shaft through a bearing.
    Type: Grant
    Filed: April 21, 2018
    Date of Patent: May 26, 2020
    Inventors: Junnian Wang, Bin Yang
  • Patent number: 10596895
    Abstract: The torque vectoring device includes a torque vectoring motor, a first sun gear connected to the left drive wheel, a plurality of first planetary gears, a second sun gear, a plurality of second planetary gear formed integrally and coaxially with the first planetary gear, a common carrier to which the torque vectoring motor is connected and which pivotally supports the first and the second planetary gears, a differential ring gear to which the drive torque is inputted, a differential sun gear which is connected to the left drive wheel and a differential carrier which is connected to the second sun gear and at the same time connected to the right drive wheel.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: March 24, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Toshiyuki Morio, Keisuke Mishima, Toshihiko Yamanaka
  • Patent number: 10557536
    Abstract: A final drive assembly for a vehicle drive axle having first and second axle-shafts that are configured to rotate about a common first axis. The final drive assembly includes a first gear-set configured to be operatively connected to the first axle-shaft. The final drive assembly also includes a second gear-set configured to be operatively connected to the second axle-shaft. The final drive assembly additionally includes an electric motor configured to provide an electric motor torque input to each of the first and second gear-sets and arranged on a second axis that is parallel to the first axis.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: February 11, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Joseph R. Littlefield, Alan G. Holmes
  • Patent number: 10523090
    Abstract: In a terminal block which is interposed between a motor case 100 and an inverter case placed in the motor case and connects a motor input terminal to an inverter output terminal, an upper base for accommodating an inverter side connecting terminal connected to the inverter output terminal is fixed to the inverter case, and a lower base for accommodating a motor side connecting terminal is fixed to the motor case, and a waterproof and elastic member is interposed between the upper base and the lower base and the motor side connecting terminal is connected to the inverter side connecting terminal by a flexible conductive member (a braided wire).
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: December 31, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Kenichi Okamoto, Masaki Kobayashi
  • Patent number: 10500941
    Abstract: An axle assembly having an electric motor module, a gear reduction module, and a shift mechanism. The shift mechanism may have a shift collar that may transmit torque from the gear reduction module to a drive pinion. The shift collar may be movable between a first position in which a low range gear ratio is engaged, a second position in which a neutral gear ratio is selected, and a third position in which a high range gear ratio is engaged.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: December 10, 2019
    Assignee: ArvinMeritor Technology, LLC
    Inventors: Pedro Garcia, Dhanapal Vittala Raya, Christopher Keeney, Wagner Yukio Hirao, David G. Gonska
  • Patent number: 10415679
    Abstract: A number of variations may include a product comprising an electrical machine operatively connected to a driveline module comprising a gear train having a fixed gear ratio, a first planetary gear set having multiple gear ratios operatively connected to the gear train, a second planetary gear set having a fixed gear ratio operatively connected to the first planetary gear set, and a synchronizer, wherein the synchronizer is operatively connected to the first planetary gear set and is positioned between the first and second planetary gear set; a differential operatively connected to the second planetary gear set; wherein the electrical machine selectively transmits power to the differential through the gear train, the first planetary gear set, the synchronizer, and the second planetary gear set, and wherein the synchronizer is constructed and arranged to shift the driveline module into a high range mode, a low range mode, and a neutral mode.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: September 17, 2019
    Assignee: BorgWarner Inc.
    Inventors: Larry A. Pritchard, Thaddeus R. Kopp, David E. Young
  • Patent number: 10344857
    Abstract: A gear-lever mechanism using meshing and pushing for rotation includes a shell; an input device including a driving gear; an output device including a supporting frame and a driven gear set; and a positioning device including a fixed bearing gear. The driven gear set includes a transfer-layer gear and at least one idler gear. The supporting shaft center of each transmission gear in the driven gear set is the sub-bearing point, with each transmission gear meshed with its adjacent drive gears to form two meshing points. The bearing point and the two meshing points form a triangular pushing area. At least two triangular pushing areas in head-to-tail connection form a meshing-pushing-lever-type torsion-output path curved from the driving gear to the fixed bearing gear for connecting and driving, to cause the gear set to rotate with a raising speed, and then reduce the speed and increase the torque.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: July 9, 2019
    Inventor: Zhilin Wang
  • Patent number: 10344828
    Abstract: A dual-shaft push-moving varying speed device includes a drive unit; an input shaft, having at least an odd-numbered input gear and at least an even-numbered input gear is coupled with the drive unit; an output shaft, having an end thereof penetrate through the input shaft and the drive unit, and the another end thereof possesses an output gear; a transmission shaft, including at least an odd-numbered output gear, at least an even-numbered output gear, and a transmission gear where the odd-numbered output gear is meshed with the corresponding odd-numbered input gear while the even-numbered output gear is meshed with the corresponding even-numbered input gear, and the transmission gear is meshed with the output gear; and at least a push-moving fork, being furnished between the odd-numbered input gear and the even-numbered input gear, selectively pushes the odd-numbered input gear and the even-numbered input gear to move.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: July 9, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Meng-Ru Wu, Chia Tsao, Peng-Yu Chen, Jui-Tang Tseng, Cheng-Ping Yang
  • Patent number: 10259319
    Abstract: In a differential device, a differential case includes a first engaging part having engaging teeth on a first side wall of the differential case. A clutch member is disposed between the first side wall and a second side wall of the differential case in an axial direction. The clutch member includes a second engaging part. An urging member is disposed between the second side wall and the clutch member such that the urging member is compressed in the axial direction. When an actuator does not generate a pressing force, the first engaging part and the second engaging part are engaged with each other by the urging force of the urging member, and the differential case and the input member are connected together via the clutch member. The first engaging part is disengaged from the second engaging part by the pressing force provided due to actuation of the actuator.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: April 16, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Tadashi Yoshisaka, He Jin, Yasunori Kamitani
  • Patent number: 10221903
    Abstract: One vehicle wheel is disconnected from a differential while the vehicle is in a front wheel drive mode. A controller checks for a malfunction of the differential while the vehicle is in the front wheel drive mode and in response to a request to enter an all wheel drive mode. If speeds of the other vehicle wheel and the differential input indicate that the malfunction is present, the all wheel drive mode is disabled and the driver is informed. If fluid temperature indicates a risk of the malfunction, all wheel drive mode is temporarily disabled and the driver is informed. If the temperature condition continues to be present for a predetermined duration, the all wheel drive mode is disabled.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: March 5, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Jacob Martin Povirk, Mikhail Steinberg
  • Patent number: 10211702
    Abstract: An electrical machine comprising: at least one stator, at least one module, the at least one module comprising at least one electromagnetic coil and at least one switch, the at least one module being attached to the at least one stator; at least one rotor with a plurality of magnets attached to the at least one rotor, an integrated electrical differential coupled to at least one of the rotors, the at least one integrated electrical differential permitting the at least one rotor to output at least two rotational outputs to corresponding shafts, wherein the at least two rotational outputs are able to move the shafts at different rotational velocities to one another. The electrical machine is configured to fit into a housing, and that can be retrofitted into a conventional vehicle by replacing the mechanical differential.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: February 19, 2019
    Assignee: Axiflux Holdings Pty Ltd
    Inventor: David Elias Jahshan
  • Patent number: 10203029
    Abstract: A motor drive unit having an electromagnetic brake serving as an inboard brake that may also be used as a parking brake is provided. In the motor drive unit, output torque of a drive motor is distributed to a first driveshaft and a second driveshaft. The motor drive unit comprises: an electromagnetic brake device that stops rotation of an output shaft by contacting a brake stator to a brake rotor; a brake motor that generates torque when energized; and an engagement force generating device that generates an engagement force to engage the brake member with the rotary member when the output torque of the brake motor is applied thereto, and that maintains the engagement between the brake member and the rotary member when current supply to the electromagnetic brake device and the brake motor is stopped.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: February 12, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ALCHEMICA CORPORATION
    Inventors: Hiroshi Isono, Aizoh Kubo
  • Patent number: 10203028
    Abstract: The present invention provides a drive gear device that can easily be made compact and lightweight with a simple configuration, and that has little friction loss. Among externally toothed sun gear members (12a, 12b) and ring gear members (16, 17) of first and second planetary gear mechanisms (11a, 11b), one pair, which are first paired members (12a, 12b), are coupled to a coupling member (12) for equalizing the rotational speeds and rotational directions of the first paired members (12a, 12b), and the other pair, which are second paired members (16, 17) are coupled to opposite rotation members (18, 19) for making the second paired members (16, 17) rotate in opposite directions. Rotational torque inputted to the coupling member (12) is distributed to the first planetary gear mechanism (11a) and the second planetary gear mechanism (11b), and is outputted from planetary carriers (15a, 15b).
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: February 12, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ALCHEMICA CORPORATION
    Inventors: Aizoh Kubo, Nobuyoshi Sugitani
  • Patent number: 10167930
    Abstract: A two-speed transmission having two clutches includes an electric motor, a middle shaft, a first clutch, a second clutch, a first gear assembly and a second gear assembly. The electric motor includes a spindle. The first clutch and the second clutch are furnished on the middle shaft coaxially. The first gear assembly and the second gear assembly are coupled to the first clutch and the second clutch through a first shaft portion and a second shaft portion of the middle shaft to generate a first gear ratio and a second gear ratio, respectively. When the first clutch is activated to connect with the first shaft portion, the second clutch separates from the second shaft portion, so that the electric motor outputs a first torque corresponding to the first gear ratio through the first gear assembly. Similarly, the electric motor outputs a second torque corresponding to the second gear ratio.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: January 1, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jui-Tang Tseng, Kun-Ju Xie, Chia Tsao, Tsung-Han Wu
  • Patent number: 10094457
    Abstract: A number of variations may include a product comprising an electrical machine operatively connected to a driveline module comprising a gear train having a fixed gear ratio, a first planetary gear set having multiple gear ratios operatively connected to the gear train, a second planetary gear set having a fixed gear ratio operatively connected to the first planetary gear set, and a synchronizer operatively connected to the first planetary gear set and which is positioned between the first and second planetary gear set; a differential operatively connected to the second planetary gear set; wherein the electrical machine selectively transmits power to the differential through the gear train, first planetary gear set, synchronizer, and second planetary gear set, and wherein the synchronizer is constructed and arranged to shift the driveline module into a high, low, and a neutral mode through placement of a ring gear of the first planetary gear set.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: October 9, 2018
    Assignee: BorgWarner Inc.
    Inventors: Larry A. Pritchard, Thaddeus R. Kopp, David E. Young
  • Patent number: 10047841
    Abstract: Disclosed herein is a single-shaft two-speed drive system including a synchronizer. The single-shaft two-speed drive system includes: a housing; a motor unit including a stator and a rotor; a first planetary gear set including a first sun gear, a plurality of first planetary gears, a first ring gear, and a first carrier; a second planetary gear set including a fastening cone, an integrating cone, a synchronizer, a second sun gear, a plurality of second planetary gears, a second ring gear, and a second carrier; and a differential; wherein the sleeve is moved in a direction of the fastening cone and coupled to the fastening cone to thus obtain a single gear reduction ratio and the sleeve is moved in a direction of the integrating cone and coupled to the integrating cone to thus obtain driving power without gear reduction.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: August 14, 2018
    Assignee: ETR CO., LTD.
    Inventor: Kwang Suk You
  • Patent number: 10024430
    Abstract: A park lock apparatus and control unit for a vehicle, the apparatus comprising: a locking member (28, 30; 50) having: a first state arranged to permit independent rotational movement of front and rear drive shafts (20, 22) of the vehicle relative to a fixed position on the vehicle; a second state arranged to prevent independent rotational movement of the front and rear drive shafts of the vehicle relative to the fixed position on the vehicle; and a third state arranged to prevent rotational movement of the front and rear drive shafts of the vehicle relative to the fixed position on the vehicle, and an actuation member (36; 64) for moving the locking member between the first, second and third states.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: July 17, 2018
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventors: John Spooner, Ged Pybus
  • Patent number: 10005457
    Abstract: A vibration suppression torque calculation means calculates a vibration suppression torque for suppressing a sprung vibration. An upper/lower limit value setting means is configured to set, based on a gear ratio of a transmission, upper and lower limit values whose absolute values are increased as the gear ratio is increased. An upper/lower limit restriction means calculates a final vibration suppression torque acquired by using the upper and lower limit values to impose upper/lower limit restriction on the vibration suppression torque. An addition unit sets a value acquired by adding the final vibration suppression torque to a driver required torque to a target torque.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: June 26, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takeshi Kanou
  • Patent number: 9989140
    Abstract: A power transmission interrupting device includes: an interrupting member restrained from rotating relative to a first rotating member and movable in an axial direction between a coupling position at which the interrupting member engages with the second rotating member and an uncoupling position; and a moving mechanism moving the interrupting member in the axial direction. The moving mechanism has a magnetic flux generation unit, a holder unit, and a moving member. The holder unit includes: a yoke having a cylindrical part that faces the magnetic flux generation unit in a radial direction; and a restraint member having an axial movement restraining part that is fixed to the yoke and restrains the magnetic flux generation unit from moving in the axial direction relative to the cylindrical part, and a rotation restraining part that is locked in a locking portion provided in the case member and restrains the yoke from rotating.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: June 5, 2018
    Assignee: JTEKT CORPORATION
    Inventors: Minoru Onitake, Yasunori Kamitani
  • Patent number: 9958049
    Abstract: A drive module that includes a Ravigneaux gearset, a first input shaft, first through fourth gears, and a differential assembly. The Ravigneaux gearset has a carrier, a first sun gear, a second sun gear, and a plurality of first planet gears that are journally supported by the carrier and drivingly coupled to the first and second sun gears. The first input shaft is coupled to the first sun gear for rotation therewith. The first gear is coupled to the first input shaft. The second gear is meshingly engaged to the first gear. The differential assembly has a differential input and first and second differential outputs. The differential input is coupled to the second gear for rotation therewith. The third gear is coupled to the carrier for rotation therewith. The fourth gear is coupled to the first differential output for rotation therewith and is meshingly engaged to the third gear.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 1, 2018
    Assignee: e-AAM Driveline Systems AB
    Inventors: Erik J. Sten, Gabriel Trönnberg
  • Patent number: 9855830
    Abstract: An electric axle drive (1) for a motor vehicle has an electric machine (2) for driving at least one output shaft (15, 16) of the axle (13) of the motor vehicle and has a spur gear unit (5) with two spur gear stages (6, 7). The electric machine (2) can drive the spur gear stages (6, 7), which, in turn, can drive a planetary gear unit (14). The planetary gear unit (14) can be shifted between two gears. In the first gear, a transmission ratio is shifted in the planetary gear unit (14), and, in the second gear, the planetary gear unit (14) is shifted as a block.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: January 2, 2018
    Assignee: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventor: Daniel Knoblauch
  • Patent number: 9746063
    Abstract: A differential, including: a gear housing; an epicyclic housing which is mounted in the gear housing in a manner allowing rotation about a gear axis; a planet carrier arranged in the epicyclic housing in a manner allowing rotation; a first output sun gear; a second output sun gear; a planetary arrangement, accommodated in the planet carrier, coupling the output sun gears in a manner allowing opposite rotation; a brake device generating a bridging torque which places a load on relative rotation of the first and second output sun gears, according to a magnitude of an axial force applied to the brake device; and an actuating mechanism for the purpose of generating said axial force applied to the brake device. The actuating mechanism is designed in such a manner that the first bridging torque generated by the brake device increases as a rotary drive torque applied to the epicyclic housing increases.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: August 29, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Harald Martini, Thorsten Biermann
  • Patent number: 9689473
    Abstract: A transmission includes a single planetary gearset, a first torque machine, an output member and a two-speed gearset that is coupled to the drive member. The single planetary gearset includes a sun gear, a carrier gearset and a ring gear, wherein the carrier gearset is rotatably couplable to the input member and rotatably couplable to the output member, the sun gear is rotatably coupled to a rotor of the first torque machine, and the ring gear is rotatably couplable to the input member and rotatably couplable to the output member. The output member is rotatably couplable to the two-speed gearset, which is configured to operate in one of a first gear ratio and a second gear ratio.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: June 27, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Ravikanth G V, Sandhu Kurian Kurian, Hashim Mm, Alan G. Holmes
  • Patent number: 9636988
    Abstract: A motor vehicle, includes a drive motor for driving the motor vehicle, at least one additional motor and at least one differential for distributing a torque generated by the drive motor and transmitted by a drive shaft to a driven differential element of the differential to two output shafts. The motor vehicle includes a coupling device which can be controlled by a control device, and in a first coupling state directly or indirectly couples the additional motor with an output shaft, thereby rendering the distribution of the drive torque to the output shafts dependent on an additional torque exerted by the additional motor, and in a second coupling state directly or indirectly couples the additional motor with the driven differential element.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: May 2, 2017
    Assignee: AUDI AG
    Inventor: Udo Pinschmidt
  • Patent number: 9593754
    Abstract: An axle assembly with a motor, a differential assembly, a housing, a transmission and a reduction gearset. The transmission has a first and second planetary gearsets that have associated (i.e., first and second) ring gears, planet carriers and sun gears. The first planet carrier is coupled to a differential carrier of the differential assembly for common rotation. The second ring gear is non-rotatably coupled to the housing. The second planet carrier is coupled to the second differential output for common rotation. The second sun gear is coupled to the first sun gear for common rotation. The reduction gearset is disposed between an output shaft of the motor and the first ring gear and includes a first gear, which is coupled to the output shaft for rotation therewith, and a second gear that is coupled to the first ring gear for rotation therewith.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: March 14, 2017
    Assignee: e-AAM Driveline Systems AB
    Inventor: Erik J. Sten
  • Patent number: 9527500
    Abstract: A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member which are respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components is selectively fixed to a stationary member through a brake. The hybrid vehicle is selectively placed in one of drive modes including a first hybrid drive mode in which the brake is placed in an engaged state while the clutch is placed in a released state, and a second hybrid drive mode in which the brake is placed in a released state while the clutch is placed in an engaged state.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: December 27, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Hayashi, Hiroyasu Harada, Tomohito Ono, Hiroyuki Ishii
  • Patent number: 9482295
    Abstract: A gear-shifting device (1) for means of transport including a pair of shafts (20-30) each including a plurality of transmission units (200) wherein each transmission unit (200) of a shaft (30) is rotated by a respective transmission unit (200) of the other shaft (20) wherein the shaft (30) is an activation shaft. The activation shaft (30) includes activation means (40) configured in such a way as to selectively rotate in an integral fashion a transmission unit (200) of the shaft (20) with a transmission unit (200) of the activation shaft (30) by generating a transient difference in speed of rotation between the slowing disk (45) operatively connected to the transmission unit (200) of the shaft (30) and the transmission unit (200) of the shaft (30). The transmission units (200) of the activation shaft (30) rotate freely relative to the activation shaft (30) in a selected configuration of the transmission unit (200).
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: November 1, 2016
    Assignee: SIRAL S.R.L.
    Inventor: Fabrizio Storti
  • Patent number: 9475478
    Abstract: A hybrid drive apparatus and a control apparatus for controlling the hybrid drive apparatus, a hybrid drive apparatus including a differential device made of a first differential mechanism and second differential mechanism, including four rotary components; and an engine, a first electric motor, second electric motor and an output rotary member, which are respectively connected to four rotary components, wherein one of the four rotary components consists of a rotary element of the first differential mechanism and a rotary element of the second differential mechanism which are selectively connected to each other through a coupling element, and the control apparatus controlling at least one of output torques of the first and second electric motors, to reduce a difference between rotating speeds of the rotary elements of the first and second differential mechanisms selectively connected to each other through the coupling element, to a value not larger than a predetermined threshold value, before the coupling ele
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: October 25, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Kodama, Taku Harada
  • Patent number: 9365207
    Abstract: A device for torque vectoring in a wheeled vehicle is presented. The device includes a differential mechanism arranged on an axle having a first drive shaft and a second drive shaft, an electrical power source connected to an electrical motor, the electrical motor being connectable to the axle for torque vectoring between the first drive shaft and the second drive shaft, and control means connected to the power source and configured to receive a plurality of variables representing the current vehicle state and to determine drive currents being dependent on the variables, wherein the drive currents are supplied to the electrical motor from the power source for introducing a torque increase to either one of the first or second drive shafts and a corresponding torque decrease to the other one of the first or second drive shafts.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: June 14, 2016
    Assignee: BorgWarner TorqTransfer Systems AB
    Inventors: Lars Severinsson, Kristoffer Nilsson
  • Patent number: 9284995
    Abstract: An electromagnetic disconnect system has an output housing having an armature with a coil and an output shaft bearing fixed to it. A pressure plate and a sliding dog clutch are slidably attached to an output shaft that is in rotational contact with the output shaft bearing. This system further has an input housing attached to the output housing. The input housing has an input shaft bearing fixed to it. The electromagnetic disconnect system further has a disengagement spring and an axially fixed dog clutch rigidly attached to an end of an input shaft that is axially disposed through an opening in the input housing and in rotational contact with the input shaft bearing.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: March 15, 2016
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Mitchell R. Lawson, Julius L. Jones, Rick C. Sigmon
  • Patent number: 9052165
    Abstract: A remotely operated robotic platform comprises a base module mechanically coupled to a first wheel and a second wheel. A first motor is electrically coupled to a first motor controller and mechanically coupled to a first wheel. A second motor is electrically coupled to a second motor controller and mechanically coupled to a second wheel in order to provide zero-radius turning. An array of batteries is electrically coupled to a distribution bar and further electrically coupled to the motor controllers in order to provide power to the motors. A canopy is mechanically coupled to the base module where the canopy further comprises a nose section mechanically coupled to a tail section where the nose section and the tail section comprise protective plates in order to allow the remotely operated robotic platform to deflect radar.
    Type: Grant
    Filed: July 8, 2012
    Date of Patent: June 9, 2015
    Inventor: Christopher Rogers
  • Patent number: 9039559
    Abstract: An electric drive for a motor vehicle comprising an electric motor and a drive unit is disclosed. The drive unit has a first gear stage, driveable by the electric motor, a second gear stage, driveable by the first gear stage, and a differential drive, driveable by the second gear stage. The first gear stage has a driving wheel and an output wheel, wherein the driving wheel is arranged coaxially to the output shaft of the electric motor and is rotatingly driveable by the electric motor around a first rotational axis A. The output wheel is drivingly connected to the driving wheel and is rotatingly driveable around a second rotational axis B, wherein the second rotational axis B is arranged parallel off-set to the first rotational axis A. The second gear stage and the differential drive are arranged coaxially to the second rotational axis B.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: May 26, 2015
    Assignee: GKN Driveline International GmbH
    Inventor: Theodor Gassmann
  • Patent number: 9033839
    Abstract: An electric drive module for use in electric vehicles includes an electric traction motor, a geared reduction unit driven by the electric motor, a differential unit interconnecting a pair of axleshafts to a pair of wheels, and a disconnect mechanism for selectively coupling and uncoupling the geared reduction unit and the differential unit. The disconnect mechanism is configured to normally couple the geared reduction unit to the differential unit. The disconnect mechanism uncouples the geared reduction unit from the differential unit to prevent peak torque transients and torque reversals between the electric motor and the wheels.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: May 19, 2015
    Assignee: Magna E-Car Systems of America, Inc.
    Inventors: Michel Paul Rossey, Edward A. Vaughan
  • Patent number: 9033840
    Abstract: A speed reduction mechanism includes a bearing mechanism arranged on an axis of an output mechanism and including ball bearings that are arranged in parallel with each other in an axial direction of a differential case. The differential case is rotatably supported by the ball bearings of the bearing mechanism such that the entirety of an outer periphery of one of the ball bearings faces an inner periphery of a first housing element that accommodates the differential case and that is made of a material having a stiffness lower than a stiffness of a material of a rotation force applying member, and the entirety of an outer periphery of the other one of the ball bearings faces an inner periphery of the rotation force applying member.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: May 19, 2015
    Assignee: JTEKT Corporation
    Inventors: Keita Nomura, Kunihiko Suzuki, Hiroshi Takuno
  • Publication number: 20150133254
    Abstract: An electronically actuated locking differential for an automotive vehicle includes a gear case, a pair of side gears disposed within the gear case and operatively adapted for rotation with a corresponding pair of axle half shafts, and a lock plate disposed within the gear case and operably associated with one of the side gears and being movable axially relative to the one of the side gears. The electronically actuated locking differential also includes a return spring disposed within the gear case and cooperating with the lock plate to bias the lock plate axially away from one of the side gears and an electronic actuator cooperating with the lock plate, the electronic actuator having a non-rotating stator disposed about a portion of the gear case, an electromagnetic coil associated with the stator, and a non-rotating armature coupled to the lock plate and being axially movable relative to the stator.
    Type: Application
    Filed: May 3, 2013
    Publication date: May 14, 2015
    Applicant: Eaton Corporation
    Inventor: Matthew G. Fox
  • Publication number: 20150119181
    Abstract: A clutch system selectably connects a vehicle rear axle to a motor. The clutch system includes an intermediate shaft to fixably attach to a side gear of a differential for rotation therewith. A case of the differential is connected to the motor via a gear train. Another side gear of the differential is affixed to an output shaft, and the output shaft extends through a center of rotation of an armature of the motor to connect to a road wheel of a vehicle. A clutch is to selectably connect the intermediate shaft to another output shaft connected to another road wheel of the vehicle. An actuator is to actuate the clutch to an engaged state and thereby selectably connect the intermediate shaft to the other output shaft. The output shaft, the other output shaft, and the motor rotate independently when the clutch is not in the engaged state.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 30, 2015
    Inventor: Matthew G. Fox
  • Publication number: 20150119180
    Abstract: A powertrain can provide propulsive power to a vehicle and includes an electric motor/generator including a motor housing, and a final drive unit partially disposed in the motor housing. The final drive unit includes a gear case coupled to the motor housing. The final drive unit further includes a differential disposed in the gear case. The differential includes a differential housing. The final drive unit further includes a first final drive bearing disposed around the differential housing. The first final drive bearing is supported by the bearing support structure connected to the motor housing. The final drive unit further includes a second final drive bearing disposed around the differential housing. The second final drive bearing is supported by the gear case.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gary R. Valler, Nathan G. Rues
  • Patent number: 9017207
    Abstract: Embodiments are directed to a front end accessory drive (FEAD) and power modulating devices (PMD) which can be used in a FEAD. In one embodiment, a continuously variable transmission (CVT) is coupled directly to a crankshaft of a prime mover, and the CVT is used to regulate the speed and/or torque delivered to an accessory. A compound drive device includes a motor/generator subassembly cooperating with a CVT subassembly to provide a motor functionality with torque multiplication or division, or alternatively, a generator functionality with torque multiplication or division. In some embodiments, a FEAD includes a PMD having a sun shaft configured to couple to a sun of the PMD and to an electric motor component, such as an electrical armature or an electrical field. In one embodiment, the electrical armature the electrical field are placed concentrically and coaxially and configured to rotate relative to one another in opposite directions.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: April 28, 2015
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Brad P Pohl, Donald C Miller, Robert A Smithson, Jeremy Carter, Charles B Lohr
  • Publication number: 20150111681
    Abstract: A drive device for an electrically driven axle of a motor vehicle, has, as appropriate, a driving electric machine, a transmission gearing and a differential which, via drive output shafts, outputs drive power to driven wheels of the motor vehicle. The transmission gearing is formed by two planetary gear sets which are coupled to one another and which can be switched into two transmission ratio stages by way of switching elements.
    Type: Application
    Filed: December 24, 2014
    Publication date: April 23, 2015
    Inventors: Christian WIRTH, Dariush KIANI
  • Patent number: 9011285
    Abstract: In a drive arrangement for wheels of a motor vehicle which are driven by means of an electric machine via a differential, the electric machine includes a rotor and a stator and drives a drive element of the differential whose output shafts output to the wheels of the motor vehicle. In order to achieve a structurally compact construction which enables favorable transmission ratios the rotor outputs to the drive element of the differential and that by interposing a gear mechanism, the drive element and/or the output shafts are supported offset to the rotation axis of the rotor.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: April 21, 2015
    Assignee: Audi AG
    Inventor: Johann Märkl
  • Publication number: 20150099601
    Abstract: A planetary gear transmission is disclosed, which comprises a planetary gear train having a sun gear, a fixed annular gear, at least one planet gear and a planet carrier; a synchronizer configured to be driven into a first coupling state in which it couples the sun gear with a prime mover, and a second coupling state in which it couples the planet carrier with the prime mover; and an actuator configured for selectively driving the synchronizer into one of its first and second coupling states. An electric vehicle comprising such a planetary gear transmission is also disclosed.
    Type: Application
    Filed: May 31, 2012
    Publication date: April 9, 2015
    Inventor: Mingliang Zhang
  • Publication number: 20150099600
    Abstract: An electrical axle for a four wheeled road vehicle is provided. The electrical axle comprises an electrical propulsion motor (110) arranged coaxially on said axle (100), a differential mechanism (120) being connected to said electrical propulsion motor for driving two wheels arranged on a first side (160) and a second side (162) of said electrical axle (100), and an electrical torque vectoring motor (132) arranged coaxially on said axle (100) and connected to said fist side (160) and second side (162) for providing a change in torque distribution between said first side (160) and said second side (162) of said axle (100), wherein the diameter of the torque vectoring motor (132) is less than the diameter of the electrical propulsion motor (110).
    Type: Application
    Filed: March 15, 2013
    Publication date: April 9, 2015
    Inventors: Kristoffer Nilsson, Gustaf Lagunoff
  • Patent number: 8998765
    Abstract: An axle assembly with a motor, a differential assembly, a housing, a transmission and a reduction gearset. The transmission has a first and second planetary gearsets that have associated (i.e., first and second) ring gears, planet carriers and sun gears. The first planet carrier is coupled to a differential carrier of the differential assembly for common rotation. The second ring gear is non-rotatably coupled to the housing. The second planet carrier is coupled to the second differential output for common rotation. The second sun gear is coupled to the first sun gear for common rotation. The reduction gearset is disposed between an output shaft of the motor and the first ring gear and includes a first gear, which is coupled to the output shaft for rotation therewith, and a second gear that is coupled to the first ring gear for rotation therewith.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 7, 2015
    Assignee: e-AAM Driveline Systems AB
    Inventor: Erik J. Sten
  • Patent number: 8992366
    Abstract: An electric drive for a motor vehicle is disclosed that comprises an electric motor and a drive unit drivable by the electric motor. The drive unit has a planetary drive and a differential drive 9, which are arranged coaxially to a rotational axis A. The planetary drive comprises a ring gear, a sun gear, a plurality of planet gears as well as a planet carrier. The ring gear is rotatingly driveable by the electric motor around the rotational axis A. The sun gear is supportable or supported relative to a stationary component against rotation. The planet carrier is connected to a differential carrier of the differential drive so as to transmit torque thereto. A motor vehicle with such an electric drive is also disclosed.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: March 31, 2015
    Assignee: GKN Driveline International GbmH
    Inventor: Theodor Gassmann
  • Patent number: 8992367
    Abstract: A drive device for a vehicle includes at least one electric machine having at least one rotor element which is configured to delimit an installation area in a radial direction. Disposed, at least partly, in the installation area, is at least one transmission device which is configured to be driven by the electric machine via the rotor element.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: March 31, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Kalmbach, Klaus Schleicher, Janina Steinz
  • Publication number: 20150087459
    Abstract: A speed-changing and differential transmission includes a speed-changing section and a differential section. The speed-changing section has an input stage and a load stage. The sun wheel of the load stage can be operatively connected to at least one planet wheel of the input stage via a planet carrier. At least one planet wheel of the load stage can be operatively connected to the annulus of the input stage via a planet carrier. One of these operative connections is configured as a selectable connection and the other is configured as a fixed connection such that through use of a coupling device, the annulus of the input stage can be operatively coupled to the planet carrier of the load stage, or the sun wheel of the load stage can be operatively coupled to the planet carrier of the input stage.
    Type: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Inventors: Rainer Petersen, Jörg Möckel, Andreas Lutz, Stefan Hanke
  • Patent number: 8979695
    Abstract: A drive device (1, 20) including an electric machine (3), a first planetary gear (4), a differential (5) and an operative connection between a drive shaft (3a) of the electric machine (3) and a first planetary pinion (4a) of the first planetary gear (4), said first planetary pinion (4) engaging with the first planet wheels (4b) which engage with a stationary first ring gear (4) and which are rotationally mounted on a first planet carrier (4c) which is connected in a rotationally fixed manner to a differential cage (5a) of the differential.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: March 17, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Thomas Smetana, Thorsten Biermann
  • Publication number: 20150065284
    Abstract: A power switching device includes a power transmission unit and a driving unit. The transmission unit includes a differential, an axle aligned with the differential, and a coupler sleeved movably on one of the differential and the axle. The driving unit includes a controller, a first transmission mechanism driven by the controller, and a second transmission mechanism driven by the first transmission mechanism. The controller is a solenoid or an electric actuator, and is operable to activate the second transmission mechanism. The coupler can be moved by the second transmission mechanism to interconnect the differential and the axle, so as to allow for co-rotation of the axle with the differential.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 5, 2015
    Inventors: Chi-Han CHANG, Chao-Chang HO