Motor Or Generator (epo/jpo) Patents (Class 903/906)
  • Publication number: 20150137631
    Abstract: A drive module for a vehicle has a transmission (12) and an electric machine (11) that is coupled to an input shaft (16) of the transmission (12). An air-filled cavity (23) is formed between the electric machine (11) and the transmission (12). The electric machine (11) is an external-rotor motor with a rotor (24) that surrounds the stator (25). A fan impeller (31) rotates with the rotor (24) and draws air out of the air-filled cavity (23) in an axial direction, draws the air through windings (27) of the stator (25) for cooling, and subsequently conveys the air in the radial direction into a housing-side flow duct (34) in which heated air can be accumulated and via which the air can be returned toward the cavity (23). The heated air can be cooled in the region of the flow duct (34) and/or in the region of the cavity (23).
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Henrik Schrage, Sebastian Wachter
  • Publication number: 20150134162
    Abstract: A hybrid vehicle includes an engine and an electric machine, both capable of propelling the vehicle. The electric machine is electrically connected to a high voltage traction battery. The state of charge of the battery can decrease if the battery is used to power the electric machine, and can increase if the electric machine supplies power to the battery via regenerative braking. Constraints are placed on the vehicle such that the battery operates within a preferred operating window, defined between minimum and maximum state of charge thresholds. At least one controller is programmed to alter the preferred operating window of the battery in response to various vehicular activities, such as when the vehicle is towing another object, or when the vehicle weighs above a certain threshold due to contents within the vehicle, for example.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Mark Steven YAMAZAKI, Wei LIANG, Xiaoyong WANG, Rajit JOHRI, Ryan Abraham MCGEE, Ming Lang KUANG
  • Publication number: 20150128762
    Abstract: A vehicle comprises a plurality of motors operatively connected with one another. The vehicle is powered with the plurality of motors individually and in combination with one another to primarily operate each of the plurality of motors within a predetermine efficiency range.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 14, 2015
    Applicant: ALTe, LLC
    Inventors: William J. DeFrank, Seong Jun Kim
  • Patent number: 9020734
    Abstract: An apparatus for selecting operating conditions of a genset, the apparatus including a processor circuit configured to select a set of operating points from a plurality of operating points of the genset each comprising an engine speed in a generator electrical output value and a plurality of cost values associated with operating the genset at respective operating points such that the sum of the cost values associated with the operating points in said set is minimized and such that the engine speed increases or decreases monotonically with monotonically increasing or decreasing electrical power output values.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 28, 2015
    Assignee: GE Hybrid Technologies, LLC
    Inventors: Wei Liu, Nicolas Louis Bouchon
  • Publication number: 20150107914
    Abstract: An electric vehicle may include a first drive axle to drive a first wheel of the electric vehicle, a first electric motor mounted directly on the first drive axle, a power supply such as a battery to power the first electric motor, and a controller to control the electric motor. The electric vehicle may include a second drive axle to drive a second wheel and a second electric motor mounted on the second drive axle. The electric motor may be only mounted on the first drive axle. The battery may be formed from an array of batteries.
    Type: Application
    Filed: October 23, 2013
    Publication date: April 23, 2015
    Inventor: Dezhou David Zhao
  • Patent number: 9008941
    Abstract: The present invention relates to an anti-jerk control apparatus and method for an Hybrid Electric Vehicle (HEV). The anti-jerk control apparatus includes a model speed calculation unit for calculating a model speed of the motor in a state in which a vibration of a drive shaft is not considered. A vibration occurrence determination unit detects a speed vibration component while calculating a reference speed difference and an average speed difference from differences between the model speed and an actual speed of the motor, thus determining whether a vibration occurs on the drive shaft. A torque correction value calculation unit calculates a motor torque correction value for anti-jerk required to damp the vibration of the drive shaft, and controls torque of the motor if the vibration occurrence determination unit determines that the vibration occurs on the drive shaft.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: April 14, 2015
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Tae Wook Park, Joon Young Park, Tae Hoon Lee, Hyung Bin Ihm
  • Publication number: 20150100187
    Abstract: A method of controlling a motor in a hybrid electric vehicle mitigates the risk of an incorrectly wired or incorrectly connected wiring harness. Following the connection or re-connection of a wiring harness, the vehicle responds to a torque request by limiting the magnitude of the motor torque until the proper direction of torque is confirmed. A flag is then set to record that torque direction has been confirmed so that the vehicle can respond normally to future requests. Several events may indicate that a wiring harness has been re-connected.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Brian Richard Light, Jonathan Andrew Butcher, Daniel Richard Luedtke, Darko Acevski, Carlos Ayala, Shailesh Shrikant Kozarekar
  • Publication number: 20150090505
    Abstract: A structural electric tandem axle module (13) for propelling a vehicle such as a large vocational vehicle without applying torque to the chassis frame of the vehicle as the module operates.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Inventor: Leo P. Oriet
  • Patent number: 8992378
    Abstract: A vehicle powertrain includes a first rotatable member and a second rotatable member. A clutch has an engaged state in which torque is transferred between the first rotatable member and the second rotatable member through the clutch. The clutch has a disengaged state in which torque is not transferred between the first rotatable member and the second rotatable member through the clutch. A clutch actuator includes a motor-generator that has a rotor rotatably drivable by one of the first rotatable member and the second rotatable member, and has a stator powerable to rotatably drive the rotor relative to said one of the first rotatable member and the second rotatable member. A controller is operatively connected to the stator and is configured to control the motor-generator to function as a generator to provide torque on the rotor. The motor-generator provides electrical power to a vehicle component.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: March 31, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Alan G. Holmes, Anthony L. Smith, Anthony J. Corsetti
  • Patent number: 8996220
    Abstract: A torque control device for use in a hybrid vehicle equipped with a generator driven by an internal combustion engine has a command value calculator that calculates an engine torque command value and a rotation speed command value of the generator based on a target generation power of the generator set in accordance with a running state of the hybrid vehicle, a generator torque command value calculator that calculates a generator torque command value to cause a rotation speed calculation value to match the rotation speed command value, a generator controller that controls the generator based on the generator torque command value, a rotation speed detector that detects a rotation speed detection value of the generator, and a pulsation removal filter.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: March 31, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Sho Ohno, Yuji Katsumata
  • Publication number: 20150075886
    Abstract: An electric rotating machine includes a power transmission mechanism and an armature. The power transmission mechanism is equipped with a first, a second, and a third rotor. The first rotor includes n soft-magnetic members. The second rotor includes k soft-magnetic members. Note that n and k are an integer more than one. The third rotor is made up of magnets whose number of pole pairs is m where m is an integer more than or equal to one. The armature faces the third rotor. The first, second, and third rotors are arranged so as to establish a magnetic coupling among them. The soft-magnetic members of the first and second rotors and the magnets of the third rotor meet a relation of 2m=|k±n|. This arrangement is capable of achieving the transmission of power regardless of electric energization of the armature.
    Type: Application
    Filed: September 19, 2014
    Publication date: March 19, 2015
    Inventors: Tatsuya TONARI, Shin KUSASE, Hidenori KATOU, Yousuke KANAME, Naoto SAKURAI
  • Patent number: 8983695
    Abstract: The present invention relates to an electric vehicle and to a method for controlling same. The method for controlling the electric vehicle according to the present invention comprises the steps of: using first data to calculate a first torque value in a first memory; using second data to calculate a second torque value in a second memory having a memory address separate from the first memory; and comparing the first torque value and the second torque value, determining whether an abnormality exists in the torque calculations, and controlling the motion of the vehicle.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: March 17, 2015
    Assignee: LG Electronics Inc.
    Inventors: Chang Hwan Park, Byoung Sun Jeon
  • Publication number: 20150057868
    Abstract: Provided is a method and controller for controlling a vehicle dc bus voltage. The method includes generating a parameter. The parameter is based on a reference dc bus voltage squared. The method includes controlling the vehicle dc bus voltage based on the parameter and a detected dc bus voltage. The method may also include generating another parameter based on a power demand associated with at least one of a motoring mode operation and a generating mode operation of a traction motor associated with the vehicle. The power demand is indicated in a message received via a dedicated high speed data bus. The method includes controlling the vehicle dc bus voltage based on the another parameter.
    Type: Application
    Filed: October 1, 2014
    Publication date: February 26, 2015
    Inventors: Long WU, Chris J. TREMEL, Zimin W. VILAR, Alan K. GILMAN, Robert SHAW
  • Publication number: 20150051773
    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 drive control device comprises: an engine stop control portion configured to reduce a speed of the engine with the first electric motor, and then initiate an engaging action of at least one of the clutch and the brake, to stop a rotary motion of the engine, when the engine is required to be stopped.
    Type: Application
    Filed: March 26, 2012
    Publication date: February 19, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Hayashi, Hiroyasu Harada, Tomohito Ono, Hiroyuki Ishii
  • Patent number: 8950529
    Abstract: A novel multiple induction electric motor system that separately produces synchronized variable frequency alternating current control signals and using multiple induction electric motors, produces synchronized rotating magnetic fields responsive to the control signals, induces magnetic fields around a conductor in inductive rotors responsive to the rotating magnetic fields and applies rotational forces between the rotating magnetic fields and the induced magnetic fields to a common shaft of the multiple motors. The common shaft sums the rotational forces and transmits the rotational forces to a drive wheel. Such a system can be implemented using two, three or more synchronized induction electric motors, and respective elements thereof, wherein the stator and rotor laminations can be arranged, stacked and/or otherwise configured such that the multiple induction electric motors operate at lower temperatures and at higher efficiencies.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: February 10, 2015
    Assignee: Multiple Electric Systems, L.L.C.
    Inventor: Robert Ross
  • Publication number: 20150038288
    Abstract: A vehicle powertrain includes a first rotatable member and a second rotatable member. A clutch has an engaged state in which torque is transferred between the first rotatable member and the second rotatable member through the clutch. The clutch has a disengaged state in which torque is not transferred between the first rotatable member and the second rotatable member through the clutch. A clutch actuator includes a motor-generator that has a rotor rotatably drivable by one of the first rotatable member and the second rotatable member, and has a stator powerable to rotatably drive the rotor relative to said one of the first rotatable member and the second rotatable member. A controller is operatively connected to the stator and is configured to control the motor-generator to function as a generator to provide torque on the rotor. The motor-generator provides electrical power to a vehicle component.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alan G. Holmes, Anthony L. Smith, Anthony J. Corsetti
  • Publication number: 20150032311
    Abstract: Techniques are presented for more efficient three-phase inverter control for electrified vehicles (EVs). The techniques can be executed by a controller of an EV that includes one or more processors. Specifically, the techniques include closed-loop discontinuous pulse-width modulation (DPWM) control of a three-phase inverter based on electric motor current feedback. The three-phase inverter control techniques can be further based on electric motor/rotor position feedback. Based on the feedback, the techniques can select one of a plurality of zero-voltage vectors in real-time. The selected zero-voltage vector can be used when generating duty cycles for switching of the three-phase inverter, which can result in decreased switching losses and increased efficiency of the three-phase inverter.
    Type: Application
    Filed: July 29, 2013
    Publication date: January 29, 2015
    Inventors: Baiming Shao, Bing Cheng
  • Publication number: 20150014073
    Abstract: A drive unit for a vehicle includes: an engine (2); a compound motor (3) having a first rotor and a second rotor that are differentially rotatable with each other; and an automatic transmission (4A) that delivers power output of the engine (2), which is input via the compound motor (3), to an output shaft (33), in which the first rotor is connected to an input side of a gear pair that corresponds to an even shift speed and the second rotor is connected to an input side of a gear pair that corresponds to an odd shift speed.
    Type: Application
    Filed: February 13, 2013
    Publication date: January 15, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Murakami, Takahiro Shiina, Tadashi Fujiyoshi, Takao Watanabe, Eiji Tsuchiya
  • Publication number: 20150008055
    Abstract: An electric generator has an outer rotor supported on a housing for rotation about an axis and a shaft input end lying on the axis at a first end of the housing. An inner rotor is supported on the housing for rotation about the axis and has a shaft input end lying on the axis at a second end of the housing. The outer rotor has an outer rotor generator winding. The inner rotor has an inner rotor generator winding. An outer rotor one-way clutch allows the outer rotor to be rotated by its shaft input end only in one direction. An inner rotor one-way clutch allows the inner rotor to be rotated by its shaft input end only in a direction which is opposite the direction of the outer rotor allowed by the outer rotor one-way clutch. Respective internal combustion engines operate the respective rotors.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 8, 2015
    Inventor: Leo P. Oriet
  • Patent number: 8924065
    Abstract: The hybrid vehicle has a motor generator disposed in a power transmission path and performing as an electric motor and an electric generator, a direct injection engine configured to execute an ignition start in which fuel is injected into any cylinder with a piston stopped in an expansion stroke and ignited for the start, and an engine connecting/disconnecting clutch of friction engagement type directly connecting and interrupting the direct injection engine to/from the motor generator.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 30, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoki Nakanishi, Susumu Kojima, Yukihiko Ideshio, Yasuyuki Kato
  • Patent number: 8909403
    Abstract: A powertrain includes: an engine provided with a plurality of cylinders; a first motor generator coupled to an output shaft of the engine; and an ECU for controlling them. When misfire in the engine is detected, the output shaft of the engine is rotated by driving the first motor generator with ignition and supply of fuel to the engine being suspended.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: December 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshimitsu Yokouchi, Kenji Miyasaka, Tetsuo Hori, Hideto Watanabe
  • Patent number: 8880268
    Abstract: Assumed torque Tb is calculated based on an operation state of an engine when there is no abnormality in sensors, the engine is in a warm-up completion state, and a travel mode is a series mode, and actual torque Ta is calculated and friction torque Tf is calculated based on information on an actual amount of electric power generation of a generator. When the friction torque Tf is larger than an upper limit clip value, the upper limit clip value is the friction torque Tf, and when the friction torque Tf is smaller than the lower limit clip value, the lower limit clip value is the friction torque Tf, correction torque Tc is calculated, and an operation of an electronic control instrument of the engine is controlled so as to set the assumed torque Tb to the correction torque Tc.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: November 4, 2014
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Omi, Jun Aizawa, Tatsuya Tawaki
  • Patent number: 8874291
    Abstract: The invention relates to vehicles for transporting persons and/or goods, which vehicles travel on roads or alternatively on rails and at least partially use electrical energy using electric motors as drive units, wherein the electrical energy used is predominantly or substantially produced within the vehicle by converting kinetic energy, in particular components of the kinetic energy that are caused on the vehicle bodywork as gravitation effects and components of the kinetic energy from curve centrifugal forces and acceleration motions of the vehicle body, the vertical dynamic acceleration motions of the wheels and wheel suspensions, and other components, wherein the electrical energy generated in such away is temporarily stored in chemical energy stores (batteries) and/or other suitable storage media, for example, high-power capacitors or flywheel stores, until the electricity is used in the vehicle drive motors and/or other loads.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: October 28, 2014
    Assignee: Intertronic Gresser GmbH
    Inventor: German Gresser
  • Patent number: 8863885
    Abstract: A wheel hub unit includes a wheel hub, a hydraulic motor and at least one bearing for supporting the wheel hub and the hydraulic motor. The wheel hub unit comprises a first seal for protecting the at least one bearing from hydraulic oil from the hydraulic motor.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: October 21, 2014
    Assignee: Volvo Lastvagnar AB
    Inventors: Ingemar Dagh, Martin Sjöholm, Lena Larsson
  • Patent number: 8857545
    Abstract: The present disclosure provides an in-wheel drive apparatus. The apparatus includes a motor housing open at one side thereof, a motor unit mounted within the motor housing, and a rear cover coupled at one side thereof to the motor housing to close the open side of the motor housing and coupled at the other side thereof to a trailing arm. The rear cover includes a planar section constituting an outer peripheral surface of the rear cover; and a cover recess connected to an inner peripheral surface of the planar section to be integrally formed with the planar section and depressed from the planar section towards the rotor to form a recess to which the trailing arm is coupled.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: October 14, 2014
    Assignee: Hyundai Mobis Co., Ltd.
    Inventors: Sang Mok Lee, Dong Hyun Kim, Kyeong Ho Shin
  • Patent number: 8851218
    Abstract: In a method for determining a power limiting value for an electric machine in a vehicle, the electric machine being assigned an energy storage device, an intermediate power value is calculated from a maximally allowable current of the energy storage device and an instantaneous voltage. A corrected intermediate power value is determined by adding at least one power loss to the intermediate power value. A first correction value is determined for reducing the absolute value of the corrected intermediate power value if an instantaneous power of the energy storage device is greater than the absolute value of the calculated intermediate power value. The power limiting value is determined by superimposing the first correction value on the corrected intermediate power value.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: October 7, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Martin Wirth, Daniel Raichle, Alexander Scheidle, Martin Eisenhardt
  • Publication number: 20140230436
    Abstract: Embodiments as described herein provide a simplified turbo recharger for an efficient, reliable, low-cost system that delivers good performance for improving efficiency of a vehicle using electric power. Embodiments as described herein may be used with electric motor, combustion engine hybrid vehicles to improve the fuel efficiencies of such vehicles. A turbine may be positioned in an exhaust stream of a vehicle that is coupled to a generator to recharge the battery of a vehicle. The turbine may include a wastegate to permit the exhaust stream to enter or bypass the turbine depending on the charge of the battery, the rate of rotation of the turbine, pressure within the turbine, the speed of the engine, or a combination of the above.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 21, 2014
    Inventor: Alexander Wong
  • Publication number: 20140171260
    Abstract: A vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, and a rechargeable power source can be configured for reduced fuel consumption at idle. The vehicle drive system includes an electric motor in direct or indirect mechanical communication with the first prime mover, wherein the electric motor can receive power from the first prime mover driven transmission and can receive power from the first prime mover. The vehicle drive system also includes a control system.
    Type: Application
    Filed: November 15, 2013
    Publication date: June 19, 2014
    Applicant: Odyne Systems, LLC
    Inventor: Joseph T. Dalum
  • Publication number: 20140172214
    Abstract: A method and system for setting motor torque for a hybrid vehicle that converts charge or discharge limiting power of a battery into maximum charge or discharge torque of a motor to set motor torque and to protect a battery system of the hybrid vehicle may include obtaining maximum discharge power of a battery of the hybrid vehicle, power consumption of a low voltage DC-DC converter (LDC), and power consumption of electrical loads; calculating electrical discharge power that may be output by a motor with electric power based on the maximum discharge power, the power consumption of the LDC, and the power consumption of the electrical loads; calculating mechanical discharge power that may be output from the motor based on the electrical discharge power of the motor and discharge efficiency of the motor; and calculating maximum discharge torque of the motor at a determined speed based on the mechanical discharge power.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 19, 2014
    Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANY
    Inventor: Sang Joon KIM
  • Patent number: 8706369
    Abstract: A closed loop shift control apparatus and method based on estimated torque in friction elements controls a torque transfer phase when shifting from a low gear configuration to a high gear configuration for an automatic transmission system. When pressure actuated friction elements are selectively engaged and released to establish torque flow paths in the transmission, estimates of torsional load exerted on the off-going friction element are used to predict the optimal off-going friction element release timing for achieving a consistent shift feel. The estimated torque is preferably calculated by using estimated torque signals generated as a function of speed measurements represented either the engine speed and turbine output speed or transmission output speed and wheel speed under dynamically changing conditions.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: April 22, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Diana Yanakiev, Yuji Fujii, Eric Tseng, Gregory Michael Pietron, Joseph F Kucharski
  • Patent number: 8701804
    Abstract: A system for a vehicle. The system includes electric and compressed gas modes, a plurality of electric motors/generators and compressed gas motors, battery arrays, and transfer switches. The plurality of electric motors/generators and compressed gas motors are operatively connected to the wheels of the vehicle. When the system is in the electric mode, a portion of the plurality of electric motors/generators operate as motors and propel the vehicle, while a remaining portion of the plurality of electric motors/generators operate as generators and charge the battery arrays. When the system is in the gas mode, a portion of the plurality of compressed gas motors operate as motors and propel the vehicle. The transfer switches determine automatically—based upon predetermined—when the system should operate in the electric or the compressed gas mode.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: April 22, 2014
    Inventor: Craig L. Antrobus
  • Patent number: 8660729
    Abstract: A control device for a vehicle includes a motor configured to drive wheels, a high-voltage battery configured to supply electric power to the motor, and a battery charger configured to charge the high-voltage battery by using a power supply outside the vehicle. The control device further includes a failure detection unit configured to detect a specific failure, and a drive prohibition unit configured to prohibit driving of the vehicle. The drive prohibition unit prohibits the driving of the vehicle when the failure is detected by the failure detection unit in an initial check before start of driving of the vehicle and when the high-voltage battery is charged by using the power source outside the vehicle immediately before the initial check.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: February 25, 2014
    Assignee: Suzuki Motor Corporation
    Inventor: Shogo Miyazaki
  • Publication number: 20140045648
    Abstract: Disclosed in the present invention is a tandem starter-generator construction that includes an induction motor-generator, a permanent magnet motor-generator and power transmission unit disposed adjacent to the motor-generators. The induction motor-generator is utilized predominantly as a motor to provide mechanical power at relatively high efficiency as a motor, and as a generator to provide electrical power during regenerative braking. The permanent magnet motor-generator is used predominantly as a generator for very high efficiency power conversion and to capture additional electrical power during regenerative braking to compensates for the regenerative energy captured at lower efficiency by the induction motor-generator.
    Type: Application
    Filed: July 4, 2013
    Publication date: February 13, 2014
    Inventors: John F. Bangura, Lasse Moklegaard, Amitabh Saran
  • Patent number: 8639405
    Abstract: In an electric motor drive system for an electric vehicle that includes a converter for performing direct-current voltage conversion and an inverter that converts the output voltage of the converter into alternating-current voltage, a control apparatus makes a required torque response determination to determine whether the electric vehicle is in a state in which high torque response is needed. Furthermore, in a drivability priority mode in which high torque response is needed, the control apparatus sets a voltage command value for the converter in a range where sine wave PWM control can be applied. On the other hand, in a fuel efficiency priority mode in which high torque response is not needed, the control apparatus sets the voltage command value for the converter such that power loss in the overall electric motor drive system is minimized, based on the operating state of an alternating-current electric motor.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: January 28, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Yamada, Akiyoshi Morii, Hirofumi Kako
  • Publication number: 20140024492
    Abstract: Embodiments of the invention provide control means for a hybrid electric vehicle, the control means comprising an energy management portion (EMP) configured to determine a required torque split between each of a first and at least a second actuator in dependence on a first set of one or more vehicle parameters, the required torque split being an amount of torque required to be provided to drive the vehicle by each actuator, the control means being configured to provide an actuator request control output whereby each actuator is controlled to provide an amount of torque according to the required torque split, the control means further comprising a powertrain mode manager (PMM) portion, the PMM portion being arranged to override the control output of the EMP in dependence on a value of a second set of one or more vehicle parameters.
    Type: Application
    Filed: January 31, 2012
    Publication date: January 23, 2014
    Applicant: JAGUAR LAND ROVER LIMITED
    Inventor: Clement Dextreit
  • Patent number: 8626403
    Abstract: Heavy equipment is designed for operation in a substantially-repetitive work cycle that includes lifting, rotating, and lowering steps. The heavy equipment includes a generator, an electrical bus, an energy storage component, and working components. The generator provides a substantially constant electrical output to the electrical bus, which is communicated to the working components. As such, the working components of the heavy equipment are driven directly or indirectly by the electrical output of the generator. The controller selectively couples the energy storage component to the electrical bus, and the energy storage component is configured to store electricity provided by the generator, and to provide electricity to the working components by way of the electrical bus.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: January 7, 2014
    Assignee: Caterpillar Global Mining LLC
    Inventors: Michael Gordon Onsager, Joseph Helfrich, Dave L. Perugini, Wayne George Chmiel, Robert Weber, Peter James Miller
  • Patent number: 8622120
    Abstract: A method and a device for influencing the temperature of at least one electromechanical component situated in a motor vehicle, in which a transmission situated in the motor vehicle is cooled by a transmission oil flowing in a transmission cooling circuit. A cooling circuit branch is provided for influencing the temperature of the electromechanical component. The transmission oil also flows in the cooling circuit branch as a heat carrier. The flow rate of the transmission oil in the cooling circuit branch is influenced for influencing the temperature of the electromechanical component as a function of the setpoint operating temperature and/or the actual operating temperature of the electromechanical component.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: January 7, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Oliver Gerundt, Oliver Kaefer
  • Patent number: 8613333
    Abstract: A method of operating a hybrid powertrain including an engine, an electric motor and a high voltage battery includes preventing fuel flow to the engine when the high voltage battery includes a state of charge at or above a pre-defined upper limit, and when the hybrid powertrain is operating in a second fueling condition in which fuel flow to the engine is preferably maintained. The engine is rotated with torque supplied by the electric motor to maintain rotation of the engine without producing any engine torque.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: December 24, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: John Janczak, Anthony H. Heap, Neal A. Chaperon, Sean W. McGrogan, James Sydenstricker
  • Publication number: 20130325207
    Abstract: A machine having a transmission, a differential, and a drive shaft disposed therebetween has an improvement including a stator with a substantially cylindrical opening extending therethrough, and a rotor that rotates relative to the stator. The rotor is attached to the drive shaft in axial alignment, and rotation of the drive shaft causes a corresponding rotation of the rotor. At least a portion of the drive shaft extends through the opening in the stator. A semi-rigid coupling extends between the stator and the transmission.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 5, 2013
    Inventor: Johan Gunther
  • Patent number: 8594876
    Abstract: A rotation speed controller performs a rotation speed control to allow the rotation speed of a first rotating electrical machine to be equal to a start up target value, when an internal combustion engine is started while a frictional engagement device is disengaged. An engagement controller controls a non-synchronization engagement of the frictional engagement device and allows the frictional engagement device to be in a direct engagement state when performing the rotation speed control. A start up instruction unit gives a start up instruction with respect to the internal combustion engine on condition of being directly engaged. The rotation speed controller sets the start up target value so that a rotation speed at the time of a direct connection, which is a rotation speed of the engine while in direct engagement, becomes a start up rotation speed that is set within a startable rotation speed range of the engine.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: November 26, 2013
    Assignee: Aisin AW Co., Ltd.
    Inventors: Shigeki Takami, Masaki Yoshida
  • Patent number: 8550196
    Abstract: A novel multiple induction electric motor and vehicle that stores electrical power; provides a first and second direct current power input from the stored electrical power; separately produces first and second synchronized variable frequency alternating current control signal from the first and second direct current power inputs, respectively; produces first and second synchronized rotating magnetic fields responsive to the first and second variable frequency alternating current control signals, respectively; induces a first induced magnetic field around a conductor in a first inductive rotor responsive to the first rotating magnetic field; induces a second induced magnetic field around a conductor in a second inductive rotor responsive to the second rotating magnetic field; applies first and second rotational forces between the first and second rotating magnetic fields and the first and second induced magnetic fields to the shaft; and transmits the first and second rotational forces to a drive wheel.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: October 8, 2013
    Assignee: New Core, Inc.
    Inventor: Robert Ross
  • Patent number: 8527130
    Abstract: A hybrid drive apparatus includes: a drive power source that includes an internal combustion engine, a first electric motor, and a second electric motor; a power transmission mechanism that includes a carrier, a sun gear, and a ring gear, and that is configured to rotate the output shaft of the internal combustion engine by the first electric motor; and plural bearings that each includes an outer ring member and an inner ring member fitted to the outer ring member through a rolling element, and that are provided apart from each other in an axial direction of the output shaft with the carrier being positioned between the bearings. An inner periphery of the outer ring member is positioned more inward in a radial direction of the ring gear relative to a meshing portion between inner teeth of the ring gear and outer teeth of one of the pinion gears.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: September 3, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.
    Inventors: Takeshi Kitahata, Tatsuo Obata, Takeshi Kuwahara, Hiromichi Kimura, Toru Saito, Masahiro Tanae
  • Publication number: 20130214590
    Abstract: A dual-engine power system is provided to improve the power system of the conventional electric vehicles. The vehicle is driven to move by the electric engine. The necessary power/electricity would be provided by the heat engine. Therefore, the range and the endurance battery of the electric vehicles are extended, and the life of the main battery is also improved. Moreover, the complication of design is simplified, and the costs of production and maintain are reduced.
    Type: Application
    Filed: June 29, 2012
    Publication date: August 22, 2013
    Inventor: Steve Lin
  • Patent number: 8515605
    Abstract: A power supply device for a vehicle that is chargeable from an external power supply (90) provided external to the vehicle, including a main battery (BA) and a battery pack (39) that is attachable to and detachable from the vehicle. The battery pack (39) includes a sub battery (BB1) for driving electric loads (inverters 14 and 22) common to the main battery (BA) and the sub battery (BB1), and a connector (52) provided with a first storage unit storing information related to the sub battery (BB1). The power supply device for the vehicle further includes a control device (30) performing control related to the main battery (BA), and reading the information from the first storage unit and performing control related to the sub battery (BB1).
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: August 20, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Toshifumi Takaoka
  • Publication number: 20130168166
    Abstract: The present disclosure provides a work machine having a frame and a front and rear wheel axle. The machine includes a cab coupled to the frame. The cab is configured to include controls for controlling the operation of the work machine. The machine also includes an electrically-powered drive assembly coupled to the frame and front and rear axles and an inverter electrically coupled to the electrically-powered drive assembly. The machine further includes a platform assembly disposed adjacent the cab and coupled to the frame. The platform assembly comprises an outer wall at least partially surrounding the inverter.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 4, 2013
    Inventors: Jeffrey J. Konz, Joshua D. Graeve, Devendra Thakur, Mark J. Cherney, Michael J. Ackerman
  • Publication number: 20130169118
    Abstract: An electric generator incorporated into a hybrid vehicle including an engine and an electric drive motor and actuated by the engine, comprises a rotor mounted to one end portion of a crankshaft of the engine such that the rotor is rotatable integrally with the crankshaft; a cylindrical accommodating member surrounding an outer periphery of the rotor; and an air outlet provided on a peripheral wall portion of the accommodating member such that the air outlet opens in the vicinity of the outer periphery of the rotor and is tilted in a forward direction of a rotational direction of the rotor and in a radially outward direction.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 4, 2013
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventor: Izumi Takagi
  • Patent number: 8473139
    Abstract: A hybrid vehicle driving apparatus includes a clutch control device and an automatic transmission control device that are connected to mutually communicate. The clutch control device sends a request to wait gear shift to the automatic transmission control device while front clutch operation is in preparation. The automatic transmission control device that receives the request to wait gear shift determines whether priority is given to engaging or disengaging the front clutch or to shifting gears of the automatic transmission. The automatic transmission control device that is determined to give priority to the front clutch operation sends out a gear shift in stand-by state signal to the clutch control device while maintaining the automatic transmission in a gear shift prepared state. The clutch control device that receives the gear shift in progress signal restrains the front clutch from engaging or disengaging while maintaining the front clutch in an operation prepared state.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: June 25, 2013
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Suguru Futamura
  • Patent number: 8457825
    Abstract: A powertrain system includes an electric machine mechanically coupled to an internal combustion engine mechanically coupled to a transmission. A method for operating the powertrain system includes determining an engine stall threshold rate during engine operation in a low load condition. A time-rate change in an accessory load is controlled by the electric machine operating in an electric power generating mode in response to the engine stall threshold rate during the engine operation in the low load condition.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: June 4, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael D Haggerty, Sean W McGrogan, Adam J Heisel
  • Patent number: 8452471
    Abstract: A process for operating a hybrid vehicle in an internal-combustion-engine-driven mode and/or in an electric-motor-driven mode, wherein, on a route section to be traveled and considered for driving in the electric-motor-driven mode, a change to the electric-motor-driven mode will take place only when a threshold value is exceeded which represents, or correlates with the efficiency advantage achievable on the route section by a change from the internal-combustion-engine-driven mode to the electric-motor-driven mode. Starting from the instantaneous position of the hybrid vehicle, the route is examined in an anticipatory manner with respect to such a route section, wherein the threshold value is adapted when such a route section was recognized and a driving through the route section in the electric driving mode would likely lead to a lowering of the state of charge of an electric energy accumulator into a critical state of charge range.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: May 28, 2013
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Andreas Wilde, Torsten Herzog
  • Publication number: 20130088109
    Abstract: An assembly for supporting a motor of a vehicle powertrain includes a housing, a stator secured to the housing, a bearing having a radial position established by the housing, a member contacting the bearing, and a rotor secured to the member and including a radial outer surface spaced radially from the stator by an air gap established by contact between the bearing and the member.
    Type: Application
    Filed: December 14, 2011
    Publication date: April 11, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Steven A. Frait, Steven G. Thomas