Load Motion Limit Control Patents (Class 477/16)
  • Patent number: 9050923
    Abstract: A slidable room assembly comprising a vehicle body having an opening formed in an exterior wall and a reciprocable slideout unit or compartment disposed in the opening and slidable between a retracted position and an extended position. Sliding movement of the slideout unit is controlled by means of a drive mechanism that includes rack gear assemblies driven from a drive shaft as described herein. Sliding movement of the slideout unit 24 may be either motor driven or manually powered.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: June 9, 2015
    Assignee: Norco Industries, Inc.
    Inventors: Bernard F. Garceau, Timothy Belle, Bori Krobot
  • Patent number: 8868271
    Abstract: Disclosed herein is a motor control system and method for a vehicle with a transmission comprising for improving the quality of shifting, by improving precision in shifting control with precise and active motor torque control by calculating a maximum and a minimum motor torque in response to determining a power-on up-shift for increasing a shifting gear and a power-off down-shift for decreasing the shifting gear in shifting of the vehicle.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: October 21, 2014
    Assignee: Hyundai Motor Company
    Inventor: Sang Joon Kim
  • Patent number: 8801569
    Abstract: In exemplary implementations, a bicycle has “power pedaling”, in which a rider's pedaling efforts are augmented by an electric motor. The rider can control the motor simply by pedaling. It is desirable that the motor torque not exceed the rider torque; otherwise the motor overpowers the rider. A radial flexure is part of the drivetrain that transmits torque from the rider to the back wheel. One part of the flexure is connected to the back wheel casing; another part of the flexure is connected to the freewheel. If motor velocity exceeds rider velocity, this causes the flexure to elastically deform. Two sensors measure the deformation, which is equal to the difference between the angular displacements of the casing and freewheel, respectively. A PD controller seeks to make this difference equal to zero, by controlling voltage levels in the motor (and thus controlling the torque contributed by the motor).
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: August 12, 2014
    Assignee: Massachusetts Institute of Technology
    Inventor: Arthur Petron
  • Patent number: 8152667
    Abstract: A control device for a vehicular drive system is disclosed as including reverse drive for suppression means operative to preclude output member, such as an output shaft and drive wheels, of an automatic transmission portion from inputting a reverse drive force to a differential portion. This prevents a power transmitting member from rotating in a direction opposite to a rotational direction of the same with a running position being set. This suppresses a first electric-motor rotation speed, determined with an engine rotation speed and a power transmitting member rotation speed based on the relationship on mutually relative rotation speeds in the differential portion, from increasing to a high level. This results in improved durability of a first electric-motor.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: April 10, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Shibata, Tooru Matsubara, Atsushi Tabata, Koichiro Muta
  • Patent number: 8143823
    Abstract: The present invention discloses that the output end of the electric motor capable of being operated in bidirectional rotation is transmitted to the input end of different rotating speed ratio and direction output transmission device, and it is through the output end of the different rotating speed ratio and direction output transmission device to further provide different directional rotating output for driving the rotating load, wherein the user can operatively control the driving input direction to provide different rotating directional different speed change ratio output in different driving input direction.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: March 27, 2012
    Inventor: Tai-Her Yang
  • Patent number: 8143822
    Abstract: The present invention discloses that the output end of the bidirectional unequal speed electric motor being particularly used to provide bidirectional rotating input is transmitted to the input end of bidirectional same or different speed change ratio output transmission device, and is through the output end of the bidirectional same or different speed change ratio output transmission device to further provide bidirectional rotating output for driving the rotating load, wherein the user is through operatively controlling the rotating speed and operating direction of the bidirectional unequal speed electric motor to change the driving input direction thereby allowing the bidirectional same or different speed change ratio output transmission device having different speed change ratio to provide same or different speed change ratio bidirectional rotating output in different driving input direction and different rotating speed.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: March 27, 2012
    Inventor: Tai-Her Yang
  • Patent number: 8143821
    Abstract: The present invention discloses that the output end of the bidirectional unequal speed electric motor being particularly used to provide bidirectional rotating input is transmitted to the input end of bidirectional same or different speed change ratio constant directional output transmission device to further provide constant directional rotating output for driving the rotating load, wherein the user can operatively control the driving input direction thereby allowing the bidirectional same or different speed change ratio output transmission device having different speed change ratio to provide constant directional different speed change ratio rotating output in different driving input direction.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: March 27, 2012
    Inventor: Tai-Her Yang
  • Patent number: 8113987
    Abstract: A control device for hybrid vehicle drive apparatus has a differential mechanism operative to perform a differential action and an electric motor. The control device prevents a second electric motor from reaching a high-speed rotation with a likelihood of degradation occurring in durability of the second electric motor when a “D” position is switched into an “N” position during a running of a vehicle. When a shift lever (49) is shifted into the “N” position during the vehicle running to interrupt a power transmitting path of an automatic shifting portion (20), a differential action of a power distributing mechanism (16) is limited. A limited differential action suppresses increases in rotation speeds of rotary members such as a clutch or a brake of the automatic shifting portion (20), a second electric motor (M2) and a differential-portion planetary gear (P0) or the like. Thus, degradation in durability of such rotary members due to high-speed rotations thereof can be minimized.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: February 14, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenta Kumazaki, Tooru Matsubara, Atsushi Tabata
  • Patent number: 8096919
    Abstract: When a torque control value (TR) is larger than a threshold value and vehicular speed (SV) is lower than a threshold value an upper temperature limit setting unit sets the upper temperature limit of a motor generator at an upper temperature limit (TS2) higher than a normally set upper temperature limit (TS1). A torque limitation control controls limiting a torque of the motor generator, as based on a motor temperature (T) and the upper temperature limit set by the upper temperature limit setting unit.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: January 17, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keiji Takizawa, Hiroshi Aihara
  • Patent number: 7998025
    Abstract: A method for operating a drivetrain of a motor vehicle having in the force flow direction and in the following order an internal combustion engine, a clutch, an electric motor, a transmission and an axle gearset, or an internal combustion engine, a clutch, an electric motor, a transmission input shaft, a transmission and an axle gearset. The electric motor is used for pre-lubricating and warming the transmission such that, with the vehicle clutch disengaged, the lubricant pump of the transmission is driven by the electric motor so bearings are supplied with lubricant before the engine is started, and the heat, produced by splashing the lubricant, additionally warms the transmission.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: August 16, 2011
    Assignee: ZF Friedrichshafen AG
    Inventors: Mario Steinborn, Ulrich Reith
  • Patent number: 7908063
    Abstract: An apparatus and method are provided to execute synchronous shifting in a powertrain system having multiple torque-generative devices each operable to independently supply motive torque to the transmission device. The exemplary transmission device comprises a two-mode, compound-split, hybrid electro-mechanical transmission. Operation includes operating in an initial fixed gear ratio, operating the transmission in a mode operation, and, operating the transmission in a final fixed gear ratio. The control system reduces reactive torque of a clutch activating the initial gear, and deactivates the first torque-transfer device when the reactive torque is less than a predetermined value. It determines that speed of an input shaft to the transmission is substantially synchronized with a rotational speed of the second torque-transfer device, and actuates the second torque-transfer device.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: March 15, 2011
    Assignee: GM Global Technology Operations LLC
    Inventor: Jy-Jen F. Sah
  • Patent number: 7748231
    Abstract: An ice-cube complete filling detector and a refrigerator comprising the same comprise a cam, an arm lever rotated by the cam, a detector driving gear rotated by the arm lever, a detector driven gear rotated by the detector driving gear, and an ice-cube detection lever connected to the detector driven gear, so that the detector driven gear is rotated via gear engagement by the detector driving gear and the detector driven gear, and the ice-cube detection lever can be rotated in a large range of about 180 degrees, thereby ensuring high accuracy of detection.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: July 6, 2010
    Assignee: LG Electronics Inc.
    Inventor: Sung Hoon Chung
  • Patent number: 7698042
    Abstract: In response to the driver's brake OFF operation after a gearshift operation of a gearshift lever to a parking position, a motor MG2 is controlled to sequentially output a torque in a backward direction of a vehicle and a torque in a forward direction of the vehicle. Gears are accordingly engaged in a parking lock mechanism during rotation of a parking gear by an angle corresponding to half a tooth in the backward direction of the vehicle or during subsequent rotation of the parking gear by an angle corresponding to one tooth in the forward direction of the vehicle. This arrangement effectively ensures gear engagement in the parking lock mechanism, while desirably reducing a moving distance from a vehicle stop position before gear engagement in the parking lock mechanism.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: April 13, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuo Shimizu, Hideto Watanabe
  • Patent number: 7563193
    Abstract: A method for actuating the transmission of a motor vehicle having a hybrid drive mechanism, especially for the case when an electric accumulator is loaded via the internal combustion engine and the selector lever (1) is locked electronically or via a mechanical selector lever locking device during the loading operation. Regarding the selector lever actuation, the driver's wish is detected by way of a sensor device (3) and when it is determined that the drive is going to activate a running step by the sensor device (3), the loading operation of the electric accumulator is immediately discontinued, via the internal combustion engine, and an operating state is adjusted which allows a safe activation of a transmission running step and subsequently the lock of the selector lever (1) is released or the selector lever locking device (2) is unlocked.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: July 21, 2009
    Assignee: ZF Friedrichshafen AG
    Inventors: Friedrich Tenbrock, Ralf Dreibholz
  • Patent number: 7552003
    Abstract: A control method for a hybrid vehicle which includes an engine, a first motor/generator, a second motor/generator, and a manual changing device that changes a driven state of an output member of the engine that depends on a driving state of the engine and a driving state of the second motor/generator, includes the steps of detecting required driving force of the vehicle; detecting required output torque of the second motor/generator based on the required driving force when a change in a rotational speed of the engine is detected; comparing the detected required torque to the maximum permissible torque of the second motor/generator, and increasing a gear ratio when it is determined that the required output torque is greater than the maximum permissible torque.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: June 23, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshitaka Suzuki, Hiroatsu Endo
  • Patent number: 5903061
    Abstract: A control system for a vehicular drive unit having an engine, a motor-generator for acting as a motor and a generator, a planetary gear including at least three rotary elements, a battery for storing electric power as generated by the motor-generator and for feeding electric power to drive the motor-generator, an engine controller for causing the engine to output a target output value on a best mileage curve; and a motor-generator controller for controlling the motor-generator. When the output of the motor-generator corresponding to a target output value of the engine is within an outputtable region of the motor-generator, the motor-generator controller causes the motor-generator to output a reaction torque corresponding to the output torque of the engine.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: May 11, 1999
    Assignee: Aisin AW Co., Ltd.
    Inventors: Shigeo Tsuzuki, Satoru Tanaka, Takeshi Hara, Manabu Watanabe, Kenji Omote
  • Patent number: 5720690
    Abstract: A control system for a vehicular drive unit including an engine; a transmission connected to the output shaft of the engine and having a plurality of gear stages for transmitting the power to wheels; a motor generator connected to the output shaft of the engine for recovering the braking energy of the wheels through the transmission by generating electricity; a battery for storing the braking energy, which is recovered by the motor generator, as an electric power; a running status detector for detecting the running status of the vehicle; and controller for controlling the transmission and the motor generator in accordance with the output signal coming from the running status detector.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: February 24, 1998
    Assignee: Aisin AW Co., Ltd.
    Inventors: Takeshi Hara, Shigeo Tsuzuki, Satoru Tanaka, Manabu Watanabe, Kenji Omote
  • Patent number: 4457794
    Abstract: Proposed is a method for manufacturing an optical memory disc having a pregrooved substrate and a recording film on the pregrooved substrate. In the step of depositing the recording film on the pregrooved substrate, light is incident on the pregrooved substrate, and at least one of exposure amounts of light reflected by and light transmitted through the pregrooved substrate and the recording film while the recording film is being deposited on the pregrooved substrate is measured. When one of the exposure amounts of light reflected by and light transmitted through the pregrooved substrate and the recording film has reached the corresponding preset exposure amount, the deposition of the recording film is stopped.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: July 3, 1984
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koichi Kotera, Takeo Ohta