Motor Or Generator (epo/jpo) Patents (Class 903/906)
  • Publication number: 20100175937
    Abstract: A wheel generator capable of producing a higher amount of usable energy by allowing the system to engage when the axle the unit is mounted on is accelerated. The generator harness higher amounts of usable energy by allowing the two units of the electromagnetic system to rotate in opposite directions when engaged, driven by the clutch system, while all the unit rotates on bearings with exception to the Axle Rods. When the system disengages by the spring system the Earth Magnets rotate counter clockwise of Magnetic Wires until axle resumes acceleration and clutch re-engages or entire unit looses rotational energy due to axle remaining at a constant rest for an extended period of time. This device is not claimed to be a perpetual motion device of any kind or sort.
    Type: Application
    Filed: January 13, 2009
    Publication date: July 15, 2010
    Applicant: Dannell James Davidson
    Inventor: Dannell J. Davidson
  • Publication number: 20100171384
    Abstract: An electro-magnetic motor-generator system, comprising a wheel assembly having a wheel mounted onto a shaft. The shaft has a sleeve mounted thereon. A frame assembly is mounted onto the sleeve. The frame assembly comprises at least one hub having a sprocket. A gear assembly comprises a second sprocket mounted onto the shaft. The second sprocket engages the sprocket. A rotating ring assembly has first and second walls. The first wall comprises first gear teeth and the second wall comprises second gear teeth. The ring assembly further has consecutive magnetized/non-magnetized sections. The electro-magnetic means consist of at least one coil, and the at least one coil having first and second openings. Electro-magnetic means generate an electromotive force between said first and second openings, and said consecutive magnetized/non-magnetized sections. Switching said magnetic polarity forces said rotating ring assembly to rotate upon said sprocket thus rotating said wheel mounted onto said shaft.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 8, 2010
    Inventor: Shimon ELMALEH
  • Publication number: 20100171471
    Abstract: A field current control circuit for an alternating current generator includes a first voltage source and a time lag reduction circuit, which further includes a generator field that is in selective electrical communication with an energy storage component that is in electrical communication with a time lag reduction voltage source. The time lag reduction circuit may include an electronic controller and be a part of an electric drive machine that receives an operator acceleration command and thereby controls the electrical communication between the energy storage component and the generator field of the time lag reduction circuit. When the energy storage component and generator field are in electrical communication, the current passing through the generator field increases from a starting current to a target current with a reduced time lag compared to predecessor generators.
    Type: Application
    Filed: January 8, 2009
    Publication date: July 8, 2010
    Inventor: Arthur Wild
  • Patent number: 7751965
    Abstract: When a start command of an engine is given in the presence of the driver's power demand, the start control sets the ignition timing of the engine to a power demand ignition timing, in order to enable quick output of a large power from the engine in response to the driver's power demand. When the start command of the engine is given in the absence of the driver's power demand in a vehicle drive state, there is little possibility of the occurrence of gear chattering noise because of application of a torque to a driveshaft. The start control accordingly sets the ignition timing of the engine to a vibration control ignition timing, in order to reduce the vibration of the vehicle body. When the start command of the engine is given in the absence of the driver's power demand in a vehicle stop state, on the other hand, application of a small torque may cause the occurrence of chattering noise.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: July 6, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Daigo Ando, Fumikazu Satou, Takeshi Kanayama
  • Publication number: 20100164422
    Abstract: An electric rotary machine is disclosed which can adjust relative angles of sub-rotors continuously and regardless of torque direction without generating an attractive force between the field magnets of the sub-rotors. The electric rotary machine includes: a stator having a winding; a dual rotor which is rotatably disposed with a gap from the stator and divided axially along a shaft into a first rotor and a second rotor each having field magnets with different polarities arranged alternately in a rotation direction; a mechanism for varying the axial position of the second rotor relative to the first rotor continuously; and a non-magnetic member located between the first rotor and the second rotor.
    Type: Application
    Filed: December 23, 2009
    Publication date: July 1, 2010
    Inventors: Kohin SHU, Taizo MIYAZAKI, Houng Joong KIM, Satoru OKABE
  • Publication number: 20100147993
    Abstract: A propulsion system for a vertical take-off and landing ducted fan aerial vehicle is provided, the propulsion system comprising an internal combustion engine, an electric motor that comprises a motor generator, a motor drive and a battery. The motor drive and battery are integrated into the aerial vehicle and provide power to the ducted fan aerial vehicle. The electric motor may comprise a ring motor generator. In operation, this dual propulsion system serves as a weight-efficient option to allow for two sources of power on a ducted fan unmanned aerial vehicle.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 17, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Richard E. Annati, Patrick L. O'Brien
  • Publication number: 20100141076
    Abstract: An internal permanent magnet machine (“IPM machine”) of the type used, for example, with traction motors and hybrid electric vehicles, includes a rotor having a plurality of equal-sized (e.g., rectilinear) segmented ferrite magnets arranged in one or more layers. The magnets are inserted within rotor slots that are larger than the magnets themselves, such that one or more air gaps are formed adjacent to the magnets in each layer.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 10, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: ROLF BLISSENBACH, KHIET LE, DANG DINH DANG, JONATHAN BIRD
  • Patent number: 7734401
    Abstract: A shift control system of a hybrid transmission for a vehicle is arranged to correct ideal motor/generator torques so as to achieve a target engine speed prior to a target driving torque when an actual engine speed becomes greater than an allowable upper-limit engine speed and to correct the ideal motor/generator torque so as to achieve the target driving torque prior to the target engine speed when the actual engine speed does not become greater than the allowable upper-limit engine speed.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: June 8, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shinichiro Joe, Toshikazu Oshidari
  • Publication number: 20100133930
    Abstract: The hybrid drive device characterized in that: a case space (G1, G2) is divided by a partition wall (24) into a first case part (22) and a second case part (23); a drive electric motor (8) is provided in the first case part (22); a friction engagement element (B1) is provided in the second case part (23); and a through hole (59) that communicates the case spaces (G1, G2) is formed.
    Type: Application
    Filed: May 9, 2008
    Publication date: June 3, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Haruhisa Suzuki, Masatoshi Adachi
  • Publication number: 20100127586
    Abstract: A driving device (100) is provided with first and second rotating electrical machines (MG1, MG2); an inverter (30); a first storing case (23) having a first rotating electrical machine storing section (21) for storing the first rotating electrical machine (MG2), and an inverter storing section (300) for storing the inverter (30); and a second storing case (13) which can store the second rotating electrical machine (MG1) and can be attached to the first storing case (23); a first terminal section (121) connected to the inverter; and a second terminal section (15) which is arranged on the second storing case (13) and is connected to the second rotating electrical machine (MG1). The first terminal section (121) and the second terminal section (15) are arranged so that one protrudes toward the other.
    Type: Application
    Filed: May 27, 2008
    Publication date: May 27, 2010
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AUSIN AW CO., LTD
    Inventors: Tadafumi Yoshida, Masaki Yoshino, Yutaka Hotta
  • Publication number: 20100109451
    Abstract: The energy storage device has an electrical machine (12) comprising a rotor (14) and a stator (16), the stator (16) being separated from the rotor (14) by an air gap (18) and having at least one stator coil (20). The rotor (14), moreover, has a fly-mass (22) and, together with the latter, constitutes a rotating body. The rotor (14) or the rotating body consists of a multiplicity of thin sheet-metallic discs (30), which have the form, substantially, of an annular disc having an outer edge and an inner edge. There has been applied to these sheet-metal discs (30), at their outer edge, a first tensile stress and, at their inner edge, a first shear stress.
    Type: Application
    Filed: April 8, 2008
    Publication date: May 6, 2010
    Applicant: COMPACT DYNAMICS GMBH
    Inventors: Andreas Grundl, Bernhard Hoffmann
  • Publication number: 20100109461
    Abstract: A vehicle drive device includes a partition wall defining at least a part of a space where the rotating electrical machine is accommodated; a rotor support member that rotates about the rotation shaft center and supports the rotor; a bearing disposed between the rotor support member and the partition wall; a first seal member that forms a first oil chamber that is in contact with one side end of the bearing; a second seal member that forms a second oil chamber that is in contact with the other side end of the bearing; a supply oil passage that supplies oil to the first oil chamber; and a discharge oil passage that discharges oil from the second oil chamber.
    Type: Application
    Filed: October 16, 2009
    Publication date: May 6, 2010
    Applicant: AISIN AW CO., LTD.
    Inventors: Hiroshi Kato, Masaaki Nishida, Tomoko Nishida
  • Publication number: 20100102681
    Abstract: A rotating electrical machine includes a stator formed by disposing coils of a plurality of phases in a plurality of slots formed along an axial direction of a stator core; a rotor rotatably provided on an inner peripheral side of the stator; and a rotation position detector for detecting a rotation position of the rotor disposed on the one axial end side of the stator core.
    Type: Application
    Filed: September 18, 2009
    Publication date: April 29, 2010
    Applicant: AISIN AW CO., LTD.
    Inventors: Kiyotaka Koga, Yoshihisa Yamamoto
  • Publication number: 20100072865
    Abstract: A vehicle drive device includes a motor generator (MG2), a power control unit controlling the motor generator (MG2), and a case housing the motor generator (MG2) and the power control unit. The power control unit includes a first inverter driving the motor generator (MG2) and a voltage converter boosting a power supply voltage to apply the voltage to the first inverter. A reactor L1 which is a component of the voltage converter is disposed such that at least a portion of a core comes into contact with the case for heat exchange. Consequently, the heat is dissipated to the case having a large heat capacity for integral housing, to thereby allow the heat dissipation performance of the reactor (L1) arranged in the limited space to be ensured.
    Type: Application
    Filed: October 1, 2007
    Publication date: March 25, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuhiro Endo, Ryoji Mizutani, Kazutaka Tatematsu, Tadafumi Yoshida
  • Patent number: 7683569
    Abstract: The present invention is a method and apparatus by which power is controlled in a hybrid electric vehicle such that high levels of performance and efficiency are realized. The present invention includes a method and apparatus developed to optimize the use of energy in a hybrid vehicle application from the hybrid energy storage device. The method and apparatus of the present invention is particularly useful with energy storage devices there the energy state, such as the state of charge, is readily determined by an easily measured attribute. Ultracapacitors and hydraulic storage cylinders are examples of the types of energy storage devices to which the present invention may be applied.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: March 23, 2010
    Assignee: Bowling Green State University
    Inventor: Aaron Bloomfield
  • Patent number: 7677135
    Abstract: An electromechanical power transfer system for a vehicle, comprises: an electrical power source; a system controller; at least two dynamoelectric machines; an electrically engageable clutch for each machine; an input shaft coupled to the jack shaft; an output shaft coupled to a load presented by the vehicle; and at least two electrically engageable transmission gear sets for coupling the input shaft to the output shaft; wherein the system controller selectively engages each machine clutch and each transmission gear set.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: March 16, 2010
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Richard A Himmelmann
  • Publication number: 20100060099
    Abstract: A stator includes a core holder and a stator core configured by split cores arranged so as to form the annular shape, and press-fitted into the core holder. Each of the split cores is configured so that a plurality of metal plates is layered and fixed to each other by dowel-fastening. Each of the split cores includes an outer circumference groove portion and a dowel-fastening portion, the outer circumference groove portion being formed at a portion of an outer circumferential surface of the split core radially outer than the dowel-fastening portion so as to be recessed in a radially inward direction of the stator core to include a predetermined depth.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 11, 2010
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Toshiya SUGIYAMA
  • Publication number: 20100045134
    Abstract: A multiphase synchronous electrical machine for converting kinetic energy into electrical energy and electrical energy into kinetic energy has a rotor extending along an axis, and a stator, which is provided with a stator pack having slots and with an electrical winding, which extends in part in the slots and in part in a position corresponding to two heads arranged on opposite sides of the stator pack and has bars housed in the slots and connected to one another in a position corresponding to the heads and connection plates, which are welded to the bars, are packed with respect to one another and to the stator pack in an axial direction and are shaped in such a way as to define a prolongation of the stator pack.
    Type: Application
    Filed: April 23, 2009
    Publication date: February 25, 2010
    Applicant: MAGNETI MARELLI S.p.A.
    Inventors: Franco CIAMPOLINI, Augusto Eugenio Michele Maria GUCCIONE, Egidio D'ALPAOS, Paolo LISSONI
  • Patent number: 7659809
    Abstract: An engine of a hybrid electric vehicle is started following a determination that the vehicle is not moving, the ignition system is in a run state, a door is open, and the engine is not running to alert a driver that the vehicle is in a drive state.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 9, 2010
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Francis Valascho, Michael L. Gusta, Raymond C. Siciak, Dino H. Candela, Jamala Kianga Massenburg, Robert Lewis Humphrey
  • Publication number: 20100013331
    Abstract: Inside a housing, there are provided a motor generator (MG), an IPM, and a smoothing capacitor. Between the MG and the IPM, there is provided a cooler through which a coolant liquid flows, provided in an inclined manner to form contact with the top face of the IPM. Between the MG and the smoothing capacitor, there are provided a first communication channel through which an LLC flows from a region outside the housing into the cooler, brought into contact with a lateral face of the smoothing capacitor, and a second communication channel through which the LLC flows from the interior of the cooler to the region outside the housing.
    Type: Application
    Filed: October 30, 2007
    Publication date: January 21, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tadafumi Yoshida, Masaki Yoshino, Yutaka Hotta
  • Publication number: 20100011766
    Abstract: Device for recovering electrical energy from the exhaust heat of a combustion engine of a motor vehicle, with a heat exchanger, through which the exhaust gas of the combustion engine is to flow on the input side, and through which heat exchanger fluid, which in operation of the combustion engine is to be brought in the heat exchanger to a first, high temperature and/or pressure level, is to flow on the output side. The device has at least one Laval nozzle, which has an inlet and an outlet, the inlet of which is to be connected to an output-side outlet of the heat exchanger, the outlet of which is directed onto turbine blade wheels of a constant-pressure turbine, and which is dimensioned so that it loads the constant-pressure turbine with steam which has a lower second temperature and/or pressure level than the first, high temperature and/or pressure level and has a high flow velocity.
    Type: Application
    Filed: July 23, 2009
    Publication date: January 21, 2010
    Applicant: Compact Dynamics GmbH
    Inventors: Andreas Gründl, Bernhard Hoffmann
  • Publication number: 20100001535
    Abstract: An exhaust gas thermal energy recovery system of a hybrid electric vehicle includes a second catalytic converter 6, a cooling device 10, a resonance tube 8, control valves V1 and V2 and an electric generating device 9. After an engine 1 is stopped, the control valves V1 and V2 form a loop path 20, and the cooling device 10 cools down an exhaust gas downstream side of the second catalytic converter 6 so as to generate a temperature gradient.
    Type: Application
    Filed: August 8, 2007
    Publication date: January 7, 2010
    Applicant: CALSONIC KANSEI CORPORATION
    Inventors: Satoshi Kimura, Ryoichi Hori, Shiro Nakajima, Norimitsu Matsudaira
  • Publication number: 20090321156
    Abstract: A hybrid powertrain system for a vehicle includes an electric machine, a gear set mechanically connected with the electric machine, and a clutch mechanically coupled with at least one of a primary and secondary driveline assembly. The electric machine is configured to selectively provide motive power to at least one of the primary and secondary driveline assemblies. The gear set is configured to permit differential rotation between the primary and secondary driveline assemblies. The clutch is configured to selectively transfer torque between the primary and secondary driveline assemblies.
    Type: Application
    Filed: June 25, 2008
    Publication date: December 31, 2009
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: William Paul Perkins
  • Patent number: 7637333
    Abstract: Hybrid drive for a motor vehicle with a drive train, comprising a combustion engine and a vehicle transmission with variable gear ratio and a first and second electrical machine which can be operated both as a motor and a generator, each of which comprises a stator and a rotor with the second electrical machine being in a permanent nonpositive connection with an input of the vehicle transmission, with a shiftable clutch each being arranged between the electrical machines and the drive shaft of the combustion engine, and with the electrical machines to be connected with each other and/or an electrical energy source via an electronic control circuit. The two electrical machines are to be arranged in a common housing, and one of the stators of the electrical machines together with the electronic control circuit and/or the other stator is accommodated on a common carrier.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: December 29, 2009
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Andreas Gründl, Bernhard Hoffmann, Reinhard Rasch, Friedrich Mörtl, Hans Glonner, Georg Götz, Jörg Michael, Markus Kaindl
  • Publication number: 20090308671
    Abstract: A vehicle drive assembly is provided. The vehicle drive assembly includes an engine, a transmission operably coupled with the engine, an output shaft operably coupled with the transmission, a differential operably coupled with the output shaft, an axle shaft rotatably coupled to the differential, at least one wheel selectively coupled to the axle shaft via a rotatable axle stub, an electric wheel motor operably coupled to the at least one wheel via the rotatable axle stub, and a coupling device operably coupled with the electric wheel motor for selectively coupling the axle stub with the axle shaft.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 17, 2009
    Inventors: Calvin Kim, Jim Hall
  • Publication number: 20090302720
    Abstract: A generator/motor includes a ring-shaped stator core (20) fixed to a motor housing (10), and a motor rotor (30). The motor rotor (30) includes a ring-shaped rotor yoke (35) which rotates in cooperation with the crankshaft (1) and which is opposed to an inner peripheral surface of the stator core (20) with a predetermined gap therebetween. The motor rotor (30) also includes a rotor flange (31) which fixes and supports the rotor yoke (35) at its outer peripheral surface. The rotor flange (31) is rotatably supported by a support member (51a) of the motor housing (10) through a bearing (60). A cylindrical shaft portion (40) is interposed between the crankshaft (1) and the motor rotor (30), and the crankshaft (1) is spline coupled to the cylindrical shaft portion (40).
    Type: Application
    Filed: May 9, 2006
    Publication date: December 10, 2009
    Applicant: KOMATSU LTD.
    Inventor: Teiichirou Chiba
  • Patent number: 7626354
    Abstract: To protect the inverters and motor generators from damage caused by abnormal currents resulting from the sudden changes in voltage that occur when changing the battery voltage. A vehicle equipped with an engine 10* and first and second motor-generators 11 and 12 that can generate electricity by being driven by engine 10* or from regeneration of kinetic energy of the vehicle, power supply line 25 that connects first motor-generator 11 with second motor-generator 12, and battery 23 connected via switch 24 in the middle of electric power supply line 25. When changing the voltage of battery 23, switch 24 is opened before the voltage of battery 23 is changed, and switch 24 is closed only after one of the motor generators 11 and 12 is caused to generate electric power or propel the vehicle in order to reduce the difference in voltage between power supply line 25 and battery 23.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: December 1, 2009
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomoyuki Hanyu, Kazuhiro Takeda, Yuki Kosaka, Hiraku Ooba, Hiroshi Iwano
  • Publication number: 20090289583
    Abstract: A control device converts a torque instruction value of an AC motor into a current instruction of AC motor, and employs current control in which feedback is performed by PI control to match an actual current value with the current instruction. Further, the control device sets a target flow rate of cooling water flowing through a coolant passage based on the converted current instruction, produces a signal for driving a water pump to circulate the cooling water at the target flow rate thus set and provides the signal to the water pump. A revolution speed of the water pump is restricted according to a signal of the control device such that the cooling water circulates through the coolant passage at the flow rate matching with the target flow rate.
    Type: Application
    Filed: December 13, 2006
    Publication date: November 26, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tadafumi Yoshida
  • Publication number: 20090278415
    Abstract: The present invention relates to a coreless motor including a multi-stage rotor and a driving apparatus having the motor. More particularly, the present invention relates to a coreless motor including magnets and coils arranged, in multiple stages, to be concentric with a rotary central shaft and a driving apparatus having the a motor. According to an aspect of the present invention, a coreless motor including a multi-stage rotor comprises a rotor and a stator. The rotor includes a plurality of cylindrical yokes arranged in multiple stages in a radial direction, and a plurality of magnets fixed to the yokes in the respective stages in such a manner that polarities of the magnets fixed to the yoke in each stage are changed in a circumferential direction of the yoke. Further, the stator includes a plurality of cylindrical armature coil assemblies arranged in multiple stages to face the yokes, and each armature coil assembly includes a plurality of armature coils.
    Type: Application
    Filed: May 17, 2007
    Publication date: November 12, 2009
    Inventor: Kye-Jung Park
  • Publication number: 20090273249
    Abstract: A hybrid-electric vehicle is provided having a respective electrical machine in each wheel thereof. Each electrical machine is of the axial-flux type, having a rotor sandwiched axially between two parts of a stator. Each electrical machine is fitted to the respective wheel such that the rotor takes the place of a disc of a disc brake system, and the stator is mounted in place of a calliper of the disc brake system.
    Type: Application
    Filed: January 6, 2009
    Publication date: November 5, 2009
    Inventors: Michael Ulrich Lamperth, Malte Jaensch
  • Patent number: 7610973
    Abstract: An inverter unit is provided with: a case for housing a circuit board on which switching elements, diodes, and a capacitor are mounted; and a heat sink constructed integrally with the case. The inverter unit is mounted to an upper portion of the rotary electric machine by fixing the case to a mounting plate mounted to a boss. In addition, the inverter unit is electrically connected to three phase output terminals projecting out of a rear bracket by means of alternating-current wiring, and is electrically connected to a battery by means of direct-current wiring.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: November 3, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshihito Asao, Yutaka Kitamura
  • Publication number: 20090256437
    Abstract: First and second connection mechanisms electrically connect power cables extending in the same direction to first and second electric motor neighboring to each other in the extending direction of the power cables, respectively. The first connection mechanism of the first electric motor is arranged in a radially outer portion, and the second connection mechanism of the second electric motor is arranged in a space between the electric motors. Since both the connection mechanisms are located on the opposite sides of a joint surface between the first and second casings accommodating the first and second motors, respectively, the first and second connection mechanisms can be components on the first and second casing sides, respectively. This structure can prevent increase in size in a rotation axis direction, and can improve assembly workability for the motors.
    Type: Application
    Filed: July 11, 2007
    Publication date: October 15, 2009
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Tetsuya Miura, Hirotatsu Ihara, Takamasa Takeuchi, Masamitsu Senoo, Akihiro Tanaka, Takafumi Koshida, Tomoo Atarashi
  • Publication number: 20090251018
    Abstract: A drive device includes a rotating electrical machine; a control device that controls the rotating electrical machine; and a case that accommodates the rotating electrical machine and the control device. The case includes a machine chamber that accommodates the rotating electrical machine, and an electric chamber that accommodates the control device. The machine chamber and the electric chamber are separated from each other by a partition wall, and a connection member that electrically connects the rotating electrical machine and the control device to each other is provided so as to extend through the partition wall in a fluid-tight state. Each of the machine chamber and the electric chamber has an opening on one axial end side of the rotating electrical machine, and a cover that covers the openings in a separated state from each other is mounted to the openings.
    Type: Application
    Filed: March 13, 2009
    Publication date: October 8, 2009
    Applicant: AISIN AW CO., LTD.
    Inventor: Takafumi Koshida
  • Publication number: 20090251029
    Abstract: A motor/generator for a hybrid transmission includes a bearing support configured for attachment to the hybrid transmission. A stator can is bonded directly to the bearing support, possibly by welding. The motor/generator may further include a stator press-fit into said stator can. A method of assembling a hybrid transmission includes welding a stator can to a bearing support, forming a motor/generator housing. A stator is then pressed into the housing. A substantially-complete motor/generator is assembled by installing a rotor, a rotor hub, and a ball bearing into the housing, which are held in the motor/generator housing with a snap ring. The method may include rigidly attaching the substantially-complete motor/generator to a main case. The method may further include testing the substantially-complete motor/generator prior to transporting the motor/generator to a final place of assembly and rigidly attaching the motor/generator to the transmission main case.
    Type: Application
    Filed: August 19, 2008
    Publication date: October 8, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Timothy J. Reinhart, Gregory W. Kempf, Kenneth D. Schoch, William S. Reed
  • Publication number: 20090242292
    Abstract: In a method for operating an electric machine which is coupled to a drive shaft, the electric machine is connected to a high voltage direct-current power supply line (HDVC) by a switch and the rotational speed of the connected electric machine or of the drive shaft coupled with the electric machine is determined and the electric machine is disconnected from the high-voltage direct-current power supply line (HVDC) when the rotational speed of the electric machine or, respectively, the driveshaft is above a predetermined threshold.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Inventors: Marcus Heller, Robert Inderka, Franz Nietfeld, Lars Weinschenker
  • Publication number: 20090236158
    Abstract: An in-wheel motor system includes a knuckle supporting a hub to be rotatable and including a tank portion in which a refrigerant is accumulated, a housing fixedly attached to the knuckle, a motor incorporated within the housing and driving the hub to rotate, and a pump incorporated within the housing and pumping the refrigerant accumulated within the tank portion to the motor by means of a rotational power of the motor to refrigerate the motor.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 24, 2009
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Masafumi Sakuma, Shigetaka Isogai
  • Patent number: 7591748
    Abstract: An electrically variable transmission has a differential gear set with first, second and third members operatively connected between an input member and an output member. The input member is also operatively connected to an engine for receiving power from the engine. The transmission also includes a compound motor/generator that has a single stator and at least two rotors, referred to herein as first and second rotors. The single stator is operable to provide power to, receive power from and transfer power between the two rotors. The rotors are each operatively connected to a different respective member of the differential gear set. The transmission has a mechanical power path and an electromechanical power path. In some embodiments, selectively engagable torque-transmitting mechanisms are positioned to allow various modes of electrically variable power flow. Input-split and compound-split embodiments are presented.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: September 22, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventor: Alan G. Holmes
  • Publication number: 20090230802
    Abstract: The present invention comprises a stator, and a rotor which is disposed oppositely to the stator with a gap interposed. The stator comprises a stator core, and a distributed stator winding mounted to the stator core. The stator core comprises a ring-like yoke core, and a plurality of teeth cores which protrude from the yoke core in the radial direction. The rotor comprises a rotor core, and a plurality of permanent magnets embedded in the rotor core. A pair of non-magnetic portions is created inside the rotor core and on both sides of the circumferential width of a permanent magnet for one magnetic pole. In the rotor core located on the stator side of the pair of non-magnetic portions, a pair of magnetic paths is created as the result of the creation of the pair of non-magnetic portions. Furthermore, a groove or hole is created on the outer circumferential portion of the rotor core and between the adjacent magnetic poles.
    Type: Application
    Filed: February 18, 2009
    Publication date: September 17, 2009
    Inventors: Akinori Kamiya, Noriaki Hino, Fumio Tajima, Tsutomu Miyoshi, Hideki Nihei
  • Publication number: 20090233758
    Abstract: In a powertrain for motor vehicle that includes an engine, an electric machine able to function alternately as a motor and a generator, and a transmission whose input is driveably connected to the engine and the electric machine, a method for controlling transmission input torque during an upshift including using the engine to produce torque transmitted to the transmission input, during the ratio change phase of the upshift, operating the electric machine as a generator, and during the ratio change phase of the upshift, controlling a net torque transmitted to the transmission input by using the engine to drive the transmission and the electric machine concurrently.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 17, 2009
    Inventors: Ihab S. Soliman, Andrew J. Silveri
  • Publication number: 20090233757
    Abstract: In a powertrain for motor vehicle that includes an engine, an electric machine able to function alternately as a motor and a generator, and a transmission whose input is driveably connected to the engine and the electric machine, a method for controlling transmission input torque during an downshift including using the engine to produce torque transmitted to the transmission input, during the ratio change phase of the downshift, operating the electric machine as a motor, and controlling a net torque transmitted to the transmission input by using the engine to drive the transmission and the electric machine concurrently, and during the torque transfer phase of the downshift, operating the electric machine as a generator.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 17, 2009
    Inventors: Ihab S. Soliman, Andrew J. Silveri
  • Publication number: 20090230800
    Abstract: A rotor and an electrical machine for a motor vehicle drivetrain. The rotor includes a rotor carrier with a radial supporting area, an axial supporting area, which extends axially with respect to the axis of rotation of the rotor and which is connected to the radial supporting area and has an inner or an outer first circumferential surface, and a rotor component which conducts magnetic flux and is arranged at the circumferential surface of the axial supporting area. To achieve a rotationally locking connection between the rotor carrier and the rotor component conducting magnetic flux, it is proposed to form the axial supporting area with a positive engagement profile which extends in axial direction of the rotor for receiving, in a positive engagement, the rotor component conducting magnetic flux.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 17, 2009
    Applicant: ZF Friedrichshafen AG
    Inventors: Khalid Jafoui, Alexander Schaflein
  • Publication number: 20090224623
    Abstract: An electric rotating machine includes a stator, a rotor inserted in a bore of the stator such that an air gap is formed between the stator and the rotor, and a plurality of permanent magnets embedded in a peripheral portion of the rotor core of the rotor in a circumferential arrangement. Slits are formed in portions of the rotor core each extending between the adjacent magnetic poles. Compressive stress is induced in portions of the rotor core each extending between the slit and the permanent magnet when stress is induced in the portion of the stator core extending between the slit and the permanent magnet by centrifugal force produced when the rotor rotates and acting on the permanent magnet and a pole piece covering the permanent magnet.
    Type: Application
    Filed: February 25, 2009
    Publication date: September 10, 2009
    Applicant: Hitachi, Ltd
    Inventors: Yasuyuki SAITO, Tsuyoshi Goto, Noriaki Hino, Katsuhiro Hoshino
  • Publication number: 20090212649
    Abstract: An electric motor assembly in a vehicle powertrain is provided with a generally annular stator fit within an interior cavity of the powertrain defined by a housing. Roll pins are fit between the housing and the stator. The stator may have a plurality of first geometric features and the housing a plurality of second geometric features. The first geometric features are be configured to align with the second geometric features when the stator is fit within the cavity, with the roll pins fit between the housing and the stator at the aligned first and second geometric features. A method of assembling the electric motor assembly is also provided.
    Type: Application
    Filed: December 1, 2008
    Publication date: August 27, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Grantland I. Kingman, Alan G. Holmes
  • Publication number: 20090195093
    Abstract: An electric motor radiator (34), a feeding mechanism (30), and a cooling oil circulation path (32) constitute a cooling mechanism that cools the electric motor (6) via an electric motor cooling oil that is a cooling medium. The electric motor radiator (34) forms a circulation path between the electric motor (6), and cooling of the electric motor (6) is performed via the electric motor cooling oil. A PCU radiator (44), a feeding mechanism (40) and a cooling water circulation path (42) constitute a cooling mechanism that cools a PCU (8) via a PCU cooling water that is a cooling medium. The PCU radiator (44) forms a circulation path between the PCU (8), and cooling of the PCU (8) is performed via the PCU cooling water. Further, the feeding mechanism (30, 40) operate by power received from a power storage portion (16).
    Type: Application
    Filed: November 14, 2006
    Publication date: August 6, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Bandai, Tomonari Taguchi, Hideto Minekawa
  • Publication number: 20090197727
    Abstract: A drive unit for a hybrid electric motor vehicle includes an engine, an electric machine including a rotor, a layshaft gearset including an input driveably connected to the engine and an output, for transmitting power between the input and the output and producing a first speed differential that causes a speed of the input to exceed a speed of the output, first and second driveshafts, a differential mechanism driveably connected to said output, for transmitting power between said output and the driveshafts, and a planetary gear unit driveably connected to the output and the rotor, for transmitting power between said rotor and said output and producing a second speed differential that causes a speed of the rotor to exceed the speed of the output.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 6, 2009
    Inventor: David A. Janson
  • Publication number: 20090195103
    Abstract: A transmission system of continuously variable transmission ratio includes an input shaft, an output shaft, first and second electric motor/generators comprising first and second rotors and first and second stators, respectively, at least one of the motor/generators being of axial flux type, the first and second rotors being connected to rotate with respective shafts and the electrical connections of the first and second stators being connected together. A controller is arranged to control the flow of electrical power between the first and second stators. The stator of the said at least one motor/generator comprises two stator portions on opposite sides of the associated rotor, at least one of which is arranged to be movable in the axial direction. The said portion of the stator is rotatably secured to a spigot portion of the associated motor/generator extending in the axial direction by way of cooperating helical formations.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 6, 2009
    Inventor: Frank Moeller
  • Publication number: 20090192663
    Abstract: A hybrid electric vehicle (HEV) employing a hybrid system using both an internal combustion engine and a second motor/generator as a propelling power source for vehicle propulsion, and also employing a first generator driven by the engine for power generation, an integrated HEV control system is provided to control the engine, and the first and second motor/generators. The integrated HEV control system is also operable for detecting the presence of system failures and thereafter selecting at least one remedial action responsive to the system failures such that the system failures are corrected or minimized. The selected remedial action is also verified as being appropriate, monitored and thereafter executed.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 30, 2009
    Inventor: Michael Bennewitz
  • Publication number: 20090188732
    Abstract: A drive unit for a hybrid electric motor vehicle includes a bevel pinion driveably connected to a power source, a bevel gear meshing with the bevel pinion and aligned with an axis, first and second drive shafts, a differential mechanism including an input secured to the bevel gear for transmitting power between the input and the first and the second drive shafts, an electric motor/generator including a rotor, and a planetary gear set driveably connected to the input and the rotor for transmitting power between the rotor and the input such that a speed of the rotor is greater than a speed of the input.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 30, 2009
    Inventor: David A. Janson
  • Patent number: 7567061
    Abstract: In a hybrid electric motor vehicle, a power supply system for storing and supplying electrical power includes a motor-generator located onboard the vehicle, driveably connected to the vehicle wheels and producing AC electric power, an energy storage device for alternately storing and discharging electric power, an inverter coupled to the motor-generator and the energy storage device for converting alternating current produced by the motor-generator to direct current transmitted to the energy storage device, and for converting direct current stored in the energy storage device to alternating current transmitted to the motor-generator, a source of AC electric power located external to the vehicle, and a charger coupled to said electric power source and the energy storage device for supplying DC electric power to the energy storage device from said AC electric power source.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: July 28, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: Kerry E. Grand, Venkatapathi Raju Nallapa, Fazal U. Syed, Ming L. Kuang
  • Publication number: 20090179509
    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: Application
    Filed: June 30, 2006
    Publication date: July 16, 2009
    Inventors: Oliver Gerundt, Oliver Kaefer