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Class 474/69 - CONTROL FOR VARIABLE INPUT TO OUTPUT SPEED-RATIO


Subclass of Class 474 - Endless belt power transmission systems or components
Definition: Subject matter under the class difinition wherein the mechanism
No. of patents: 121
Last issue date: 02/26/2008


1        
NumberTitleIssue Date
7335137Drive system for magnetic resistance exercisers
A drive system for a magnetic resistance exerciser includes a fixed wheel and at least one rotatable wheel which are rotatably connected to the weight wheel and the fixed wheel by two respective belts. The fixed wheel and the weight wheel share a common shaft which ...
02/26/2008
7311624Apparatus for controlling speed of a water pump
For enhancement of heating performance of a vehicle, operating speed of a water pump of an engine is varied in accordance with engine operation conditions, so a speed of a coolant temperature increase can be accelerated when needed. ...
12/25/2007
7311322Bicycle control apparatus that sets a bicycle transmission to a predetermined gear ratio
A control apparatus for an electrically operated bicycle transmission comprises a power supply sensor and a control unit operatively coupled to the power supply sensor. The power supply sensor senses a power characteristic of a power supply, and the control unit pro...
12/25/2007
7285064Bicycle gear shifting control apparatus
A bicycle gear shifting control apparatus has a manually operated shift device, a first gear shifting operation executing component, and a second gear shifting operation executing component. The manually operated shift device operates a front derailleur to shift gea...
10/23/2007
7252608Automatic transmission having at least two conical disk sets
An automatic transmission (1) is described, having a variator (5) that comprises at least two conical disk sets (2, 3), such that a wrap-around element (4) is guided via the conical disk sets (2, 3) for torque transmission with con...
08/07/2007
7237638V-belt type continuously variable transmission
A belt continuously variable transmission apparatus having a case which includes a power transmission case (which is part of a crankcase of an engine), a power transmission case cover, and an actuator cover assembled forwardly of the power transmission case cover (d...
07/03/2007
7229375Back drive silent chain system with low profile sprocket
A silent chain and sprocket assembly is disclosed for use with a chain tensioner that provides driving contact on both sides of the chain and improved system wear, noise and vibration characteristics without adding to the chain's weight or material costs. The front-...
06/12/2007
7223189Electronically servo-assisted bicycle gearshift and related method
A method for electronically servo-assisting a bicycle gearshift, including the steps of: a) driving an actuator of a bicycle gearshift to displace a chain of the gearshift in an axial direction with respect to a gearshift group comprising at least two sprockets; b) ...
05/29/2007
7217206Active tensioner
An automatic tensioner having a load cell for detecting and controlling a power transmission belt tension. The tensioner comprises a lead screw driven by an electric motor for setting a lever arm/pulley position and thereby a belt load. The tensioner also comprises ...
05/15/2007
7211013Hydraulic control apparatus for V-belt type continuously variable transmission
There is provided a hydraulic control apparatus for a belt CVT, which is comprised of a pulley pressure control section that controls the line pressure in accordance with the oil amount balance of an oil pump based on the engine speed and the oil temperature during ...
05/01/2007
7144027Bicycle control apparatus that sets a bicycle transmission to a predetermined gear ratio
A control apparatus for an electrically operated bicycle transmission comprises a power supply sensor and a control unit operatively coupled to the power supply sensor. The power supply sensor senses a power characteristic of a power supply, and the control unit pro...
12/05/2006
7128671Hybrid power system with external auxiliary motor
A hybrid power system, comprising a first power unit, a secondary shaft, a first transmission device, an auxiliary power unit, and a second transmission device. The first power unit has a primary shaft. The secondary shaft is driven by the primary shaft in a rotatio...
10/31/2006
7105390Nonplanar transistors with metal gate electrodes
A semiconductor device comprising a semiconductor body having a top surface and a first and second laterally opposite sidewalls as formed on an insulating substrate. A gate dielectric is formed on the top surface of the semiconductor body and on the first and second...
09/12/2006
7062969Measurement apparatus and sensor apparatus
A measurement apparatus includes a speed sensor, a cadence sensor and a display portion. The apparatus further includes a transmit portion for wirelessly transmitting signals detected by the speed sensor and the cadence sensor to the display portion. The transmit po...
06/20/2006
7059984Device and method for regulating the tension of a running web
A device serves to regulate the tension of a running belt. The belt is deflected on rollers of which one is designed as a force measuring roller and is connected to a displacement sensing device. This roller is provided with at least one force sensor that determines...
06/13/2006
7040441Motorized vehicle and manufacturing methods therefor
Disclosed is a vehicle consisting of a bike frame having front and rear forks, a front wheel attached to the front fork, a rear wheel attached to the rear fork, and a drive train including a crank attached to the frame, a chain ring assembly attached to the crank, a...
05/09/2006
7033293Expandable pulley
An expandable pulley. The expandable pulley comprises a plurality of belt blocks arranged about an axis of rotation. Each belt block bears upon a radial surface extending normally to the axis of rotation. Another surface of each belt block bears upon a conical membe...
04/25/2006
7011590Shift assist apparatus for a bicycle transmission
An assisting apparatus for using power from a moving member to assist the operation of a bicycle transmission comprises a power transfer mechanism, a drive coupling mechanism, and a position maintaining mechanism. The power transfer mechanism moves in one of a first...
03/14/2006
7004864Auxiliary-driving system in engine
In an auxiliary-driving system in an engine, a crank pulley, a first auxiliary pulley and an idler pulley having a tensioner function are disposed in a triangular configuration with the idler pulley located in an uppermost position; and a second auxiliary pulley is ...
02/28/2006
6997832Variable-speed control system for a transmission
In a constant horse-power type continuously variable transmission, a pressing force supply path using for a rotation-speed control is supplied to one of an input pulley d an output pulley, and an elastic force supply path using for an axial torque control to the the...
02/14/2006
6980897Oil pressure reduction rate restricting apparatus for V-belt type continuously variable transmission
There is provided an oil pressure reduction rate restricting apparatus for a V-belt type continuously variable transmission, which is comprised of a reduction rate restricting section that calculates a reduction rate restricted secondary pressure and a reduction rat...
12/27/2005
6953407Belt transmission apparatus
A belt transmission apparatus capable of changing a tension of a belt by the action of belt tension adjuster 9, 30 from a first optimal value of higher tension suitable for the starting of engine 1 to a second optimal value of lower tension suitable fo...
10/11/2005
6935216Belt tensioning device
A belt tensioning device for shifting a pulley such that a belt passed around the pulley is tightened to a predetermined tension. The device includes a rod coupled to the pulley, a member coupled to and movable along the rod, and a spring that exerts a reactive forc...
08/30/2005
6925907Triangulated bicycle pedal support structure
A bicycle with a triangulated crank structure replaces the single span crank arm which connects the spindle to the foot pedal on bicycles today. The triangulated crank structure is typically comprised of several sections including two linear spans of structural mate...
08/09/2005
6926637Method and apparatus for controlling a bicycle transmission
A control device is provided for a bicycle having a transmission with a plurality of speed steps, wherein the control device includes a traveling condition signal receiver that receives traveling condition signals corresponding to a traveling condition value of the ...
08/09/2005
6875139Control system
A method and a control system for supplying a working medium to a hydraulically-operated device. The working medium pressure is adjusted as a function of a control variable provided by a pressure control valve or a pressure reduction valve, both within a nominal wor...
04/05/2005
6866279Method and apparatus for controlling a bicycle transmission
An apparatus for controlling upshifting and downshifting of a bicycle transmission includes a running condition detecting mechanism that detects a running condition of the bicycle, a threshold value setting mechanism that sets at least one of an upshift threshold va...
03/15/2005
6837505Method and apparatus for controlling a bicycle transmission
An apparatus for controlling upshifting and downshifting of a bicycle transmission includes a running condition detecting mechanism that detects a running condition of the bicycle, a threshold value setting mechanism that sets at least one of an upshift threshold va...
01/04/2005
6748309Arrangement and method for determining the transmission ratio of a continuously variable belt transmission
The invention relates to an arrangement and a method for determining the transmission ratio of a continuously variable transmission having a drive end and an output end. A signal, which represents the transmission ratio, is computed in dependence upon a primary rpm ...
06/08/2004
6741045Bicycle control apparatus that communicates power and data over a single transmission path
A bicycle control apparatus includes a bicycle component control unit having one of a control transmitter and a control receiver; a computer control unit having the other one of the control transmitter and the control receiver; and a transmission path coupled to the...
05/25/2004
6669589Continuously variable transmission
Disclosed is a continuously variable transmission in which when a shaft torque is secured by a belt friction force generated by externally pressing a pulley, difficulties of transmission and deteriorations of efficiency caused by short or surplus of the f...
12/30/2003
6623388System for adjusting the voltage of a wrapped component of an infinitely variable speed transmission
A system for adjusting the tension of a continuous part of a continuously variable transmissions; which is adjustable preferably with respect to its transmission ratio, the continuously variable transmission being mounted together with a vehicle engine an...
09/23/2003
6623387Hydraulic controller for a continuously variable transmission
A hydraulic controller (10, 10a, 10b) comprising a power part that is supplied by a high-pressure pump (42), and a control part and connecting lines is proposed. According to the invention, a low-pressure pump (64) is provided for the control part. This h...
09/23/2003
6620066Drive unit for an alternator of a motor vehicle
A drive unit for an alternator of a motor vehicle is provided with a driven pulley, which rotates around its own axis, and with a unit for connection of the pulley to a rotary drive shaft for the alternator; the drive unit is also provided with a revoluti...
09/16/2003
6612949Continuously variable transmission and control method therefor
A continuous variable transmission includes a pair of pulleys forming V-shaped grooves for receiving an endless transmission element for transmitting torque between the pulleys. Each pulley includes at least one axially movable sheave which may be urged a...
09/02/2003
6592478Variable speed transmission and method of use
A variable speed transmission includes an actuator mechanism that can be remotely activated to cause engagement of a drive unit and to subsequently vary the speed of the drive unit using the same activation mechanism. The variable speed transmission can i...
07/15/2003
6480774Convertible transmission system
A convertible transmission system for a vehicle having an input shaft for connection to an engine and an output shaft for delivering rotational power to at least one axle. The transmission has a plurality of available gear ratios resulting in a maximum nu...
11/12/2002
6467786Automatic shifting control device for a bicycle
A bicycle features an automatically shifting transmission. The shifting is controlled by a controller. The controller has a number of ranges that comprise a subset of the available gear steps. The operator of the bicycle can select an appropriate range an...
10/22/2002
6454288Automatic shifting control device for a bicycle
A bicycle features an automatically shifting transmission. The shifting is controlled by a controller. The controller has a number of ranges that comprise a subset of the available gear steps. The operator of the bicycle can select an appropriate range an...
09/24/2002
6408239Process for controlling a continuously variable transmission system (CVT)
The proposal is for a process for controlling a CVT of the bevel-pulley-belt type in which, on the occurrence of a wheel-locking drive situation, a converter bridging clutch is disengaged and at the same time a forward or reverse drive clutch is disengage...
06/18/2002
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