With Speed Responsive Control Patents (Class 475/51)
  • Patent number: 10953865
    Abstract: An assembly includes a front module housing an electric machine and an engine disconnect clutch, a transmission aft of the front module, a torque converter axially between the front module and the transmission, and a baffle radially between the torque converter and the transmission.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: March 23, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Steven Anatole Frait, John Edward Brevick
  • Publication number: 20130017918
    Abstract: A continuously variable transmission system and a method of making a continuously variable transmission system is described. The present invention includes a gear set having at least a sun gear, one or more planetary gears, and a planetary gear carrier arm on which the one or more planetary gears are mounted for rotational movement. The sun gear and the one or more planetary gears are mounted for rotational engagement and movement with respect to each other, and one of the sun gears and the planetary gear carrier arm couples to an input shaft and another portion of the gear set couples to an output shaft to receive feedback. A rotary coupling unit having an input rotationally coupled to at least one of the one of the sun gears and the planetary gear carrier arm and an output that rotationally couples to the output shaft is also provided.
    Type: Application
    Filed: September 17, 2012
    Publication date: January 17, 2013
    Applicant: ROCHESTER INSTITUTE OF TECHNOLOGY
    Inventor: George Sutherland
  • Publication number: 20130017917
    Abstract: A continuously variable transmission system and a method of making a continuously variable transmission system is described. The present invention includes a gear set having at least a sun gear, one or more planetary gears, and a planetary gear carrier arm on which the one or more planetary gears are mounted for rotational movement. The sun gear and the one or more planetary gears are mounted for rotational engagement and movement with respect to each other, and one of the sun gears and the planetary gear carrier arm couples to an input shaft and another portion of the gear set couples to an output shaft to receive feedback. A rotary coupling unit having an input rotationally coupled to at least one of the one of the sun gears and the planetary gear carrier arm and an output that rotationally couples to the output shaft is also provided.
    Type: Application
    Filed: September 17, 2012
    Publication date: January 17, 2013
    Applicant: ROCHESTER INSTITUTE OF TECHNOLOGY
    Inventor: George Sutherland
  • Patent number: 7873457
    Abstract: A power transfer assembly for use in a four-wheel drive vehicle has a torque transfer mechanism equipped with a power-operated clutch actuator for controlling adaptive engagement of a friction clutch and a control system for controlling actuation of the clutch actuator. The control system and its method of operation are adapted to control actuation of the clutch actuator based on whether the vehicle is operating in an engine drive mode or an engine coast/braking mode.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: January 18, 2011
    Assignee: MAGNA Steyr Fahrzeugtechnik AG & Co KG
    Inventors: Thomas Christöfl, Martin Parigger, Andreas Teuschel
  • Publication number: 20020183155
    Abstract: A compact vehicle has a frame and an operating position thereon for at least one rider. An engine having a drive shaft is on the frame, as are a plurality of operational wheels. A transmission operatively couples the engine and the wheels. The transmission is a hydrostatic mechanical transmission with at least 2 operational modes.
    Type: Application
    Filed: March 14, 2002
    Publication date: December 5, 2002
    Applicant: Sauer-Danfoss Inc.
    Inventor: Frederic W. Pollman
  • Patent number: 5782715
    Abstract: A fan drive assembly includes a viscous coupling device (11), a radiator cooling fan (F), and a speed increasing mechanism (13), so that, at relatively low engine speeds, the fan (F) is driven at a speed ("overdrive") greater than the input speed to the coupling device (11), and at relatively higher engine speeds, the input torque is transmitted through the viscous coupling in the normal manner. In the subject embodiment, the speed increasing mechanism (13) is a planetary gear set, in which torque is transmitted from the input shaft (21) to the planet carrier (47), and in the overdrive condition, the sun gear (53) is grounded. The output of the planetary is the ring gear (59), which directly drives a housing (61) attached to both the housing (17) of the viscous coupling, as well as the cooling fan (F), thus effectively bypassing the viscous clutching action.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: July 21, 1998
    Assignee: Eaton Corporation
    Inventors: Erlen B. Walton, James R. DeBrabander, David P. Godlew
  • Patent number: 5557977
    Abstract: A system for powering various rotating vehicle accessories such as an alternator, a transmission fluid pump, a power-steering pump, and an air-conditioning compressor from the torque converter of an automatic transmission. The system utilizes the smooth speed characteristic of the automatic transmission torque converter to achieve an equally smooth accessory drive ratio transition. The system may also be used to power the accessories using a manual transmission.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: September 24, 1996
    Assignee: Ford Motor Company
    Inventor: Thomas R. Stockton
  • Patent number: 5279527
    Abstract: Improvements to a Shiftless, Continuously-Aligning Transmission (SCAT) to provide the turbine member of a torque converter with variable torque-increasing gearing and give it additional work advantage over a work load and eliminate a vast amount of slippage in the converter, the improvements embodying reactive planetary gears mechanically engaging the turbine to a sun gear of a planetary gear set; mobile ring gears controlled by a drive shell extending rearward and engaged to a mechanical ring gear modulator which controls the direction and speed of the planetary ring gears to vary the output torque being delivered by the converter; a two-section input turbine shaft; a clutch mechanism to engage the two turbine shaft sections; a clutchless, continuously engaged overdrive planetary unit; hydraulic controls; and electrical braking controls.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: January 18, 1994
    Inventor: Samuel J. Crockett
  • Patent number: 5151067
    Abstract: A fully automatic transmission system for a vehicle eliminates the use of hydraulic or electromagnetic valves to control speed change, and instead utilizes clutches to change shift and disconnect power transmission, to minimize power consumption during idle shift, and to prevent slipping of the vehicle during climb on an upgrade, respectively, when no power is transmitted to the vehicle wheels, and without the need to brake the vehicle. When the revolving speed of the vehicle engine is slower that that of the transmission shaft, idle rotation of the system's clutch lining connector is automatically prevented.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: September 29, 1992
    Inventor: Chin-Fu Huong
  • Patent number: 4932928
    Abstract: A continuously-variable transmission comprising at least two operatively interconnecting planetary gearsets that are interposed between a modified torque converter and a work load with the input power divided into two different input sources. A first input drive shaft engages the driven converter housing and delivers torque to the sun gears of the planetary gearsets and a coaxial hollow drive shaft engages a turbine member of the converter and delivers hydro-kinetic torque to drive the carrier of one of the planetary gearsets which is a mechanical torque/speed modulator used to control ring gears which are meshed with each planetary gearset. At least a second planetary gearset acts as a variable-ratio transmission that has its ring gear speed varied by the modulating ability of the other gearset.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: June 12, 1990
    Inventor: Samuel J. Crockett