Matches 1 - 50 out of 83 1 2 >


Match Document Document Title
8165772 Transmission slip control  
A method of managing slip in a transmission that is driven by a prime mover includes determining whether a slip condition of the transmission is present based on a slip value and reducing a torque...
7955204 Stepping motor cooling apparatus and method for belt-type continuously variable transmission  
In a stepping motor cooling apparatus for a belt-type continuously variable transmission, a pair of primary and secondary pulleys are disposed inside a transmission case, and a forward/backward...
7892121 Straddle-type vehicle  
In a motorcycle having a V-belt type continuously variable transmission, a resin washer made of a nylon resin is interposed between a boss fixed to a moving sheave half of a secondary sheave and a...
7850555 Apparatuses and methods for controlling a variable speed transmission  
Apparatuses and methods are disclosed for controlling a variable speed transmission including an actuator, a cam follower, and a speed adjustment cam. The actuator is rotatable through a first...
7806790 Slippage detection system and method for continuously variable transmissions  
A slippage detection system for a continuously variable transmission capable of continuously changing a ratio between a speed of rotation of an input member and a speed of rotation of an output...
7771300 Devices for electrically assisting and actuating continuously variable transmissions  
An electrically assisted or actuated continuously variable transmission (CVT) with a first pulley having a first pulley portion for fixed connection to an engine shaft and an axially movable second...
7584040 Method of CVT control in a vehicle for adapting its noise characteristics with permanent and transient modes  
The following steps are performed in the control method: determining a mode of operation from amongst a permanent mode and a transient mode, as a function of a set of variables comprising said...
7243564 Power transmission system of engine  
The power transmission system of an engine is mounted on the all-terrain vehicle and has a crankshaft driven by the engine and the crankshaft is arranged in a direction of width of a vehicle body....
6733417 Control apparatus for continuously variable transmission  
When an ignition switch is turned off to stop an engine, a control apparatus of a continuously variable transmission places a line pressure regulating valve in a fully draining condition to reduce...
6637283 Control apparatus for a continuously variable transmission  
An apparatus for extending the drive ratios and versatility of a continuously variable transmission (CVT) includes an enclosure which houses parallel input and output shafts journaled to front and...
6502479 Adjustable ramp helix  
An adjustable ramp helix is disclosed for attachment to the clutch of a snowmobile or other vehicle. The adjustable ramp helix may include a base having a throat. Extending upwardly from the base...
6485392 Shift control system for belt-type continuously variable transmission  
A shift control system comprises a diameter-change calculation which calculates the difference between the diameters of the contact circles at present and after a shift to a target speed change...
6459978 Method and apparatus to control continuously variable transmission of motor vehicle  
A method and apparatus for controlling a continuously variable transmission of a motor vehicle includes a controller that controls the speed ratio of the continuously variable transmission in...
6317672 Controller for infinite speed ratio transmission  
In an infinite speed ratio transmission comprising a continuously variable transmission (2), reduction gear unit (3) and planetary gear set (5), the speed ratio of the continuously variable...
6283893 Transmission  
A method of controlling a friction-based torque-transmitting system in the drive train of a motor vehicle has the following steps: a) monitoring the respective rates of rotation of an input element...
5871411 Slip controller for a continuously variable transmission  
For an electro-hydraulically actuable continuously variable belt transmission, the selected contact pressure at the movable conical pulley discs must be of such a magnitude that the chain, the...
5813933 Continuously variable transmission with bias springs on the drive and driven pulleys for setting a predetermined speed ratio when the cut is in neutral  
A continuously variable transmission has springs, which urge the movable sheaves of primary-side and secondary-side pulleys, set to achieve a pulley ratio r1 approximate to or within a...
5725446 Belt-type automatic transmission  
A belt-type automatic transmission wherein the engine brake can automatically work when a vehicle runs on a downward slope, comprising a pair of sheaves 21 provided on a driving shaft 20, the pair...
5683318 Method for influencing the tension in a drive belt  
The invention relates to a method for influencing the tension in a drive belt in a continuously variable transmission. According to the invention, the tensions in the drive belt are determined as a...
5676026 Hydraulic pressure control system  
A valve body assembly for an automatic transmission formed by superimposing and clamping a torque converter casing, a first separation plate, a main valve body, a second separation plate, a second...
5662538 Device for adjusting pitch diameter of sheave of variable speed mechanism  
A device for adjusting the sheave pitch diameter of a variable speed mechanism includes an output shaft, a linking member, an upper urging rod, a lower urging rod, and a motor. The device can be...
5643116 Device for determining belt rotational speed of continuously variable transmission  
A device is proposed to determine the rotational speed of a transfer element (3) arranged in variable-diameter pulleys (1, 2) of a continuously variable transmission system, the said device...
5529544 Drive clutch with multi-staged displacement rate and a method for controlling a drive clutch  
A drive clutch assembly having a fixed sheave and a moveable sheave rotatable with the drive shaft of an engine comprising a multi-staged speed responsive or displacement system. The speed...
5460575 Drive clutch with variable rate biasing means and a method for controlling a drive clutch  
A drive clutch assembly having a fixed sheave and a movable sheave rotatable with the drive shaft of an engine comprising a variable rate biasing or resistance system for urging a movable sheave...
5282400 Controlling device for non-stage transmission for vehicle  
A controlling device for controlling the transmission ratio of a non-stage transmission in a vehicle. The transmission ratio is controlled according to a forecast output power of the vehicle. The...
5279523 Cone disc transmission, particularly for motor vehicles  
An infinitely variable cone disc transmission is disclosed in which the contact pressure forces are generated fully hydraulically and in which the contact pressure level is set either solely by way...
5254043 Variable transmission pulley  
A transmission system for vehicles. The transmission system has a pulley mounting a shaft extending from a mandrel of a power source, an automatic clutch for driving a wheel and a belt linking the...
5236395 Maintenance friendly variable speed drive and methods  
A variable speed belt drive of the type having a pair of shiftable discs received on respective input and output shafts with a drive belt entrained thereabout further includes a cooperating housing...
5182968 Force ratio control of continuously variable transmissions  
A control arrangement for a continuously variable transmission utilizes a lationship between force ratio, speed ratio and the factor of safety to determine the force necessary on the secondary...
5156572 Speed shift control system of a continuous transmission  
According to a gear shift control system of a continuous transmission of the present invention, when the gear ratio is controlled to a target gear ratio, a deviation between an actual primary...
5098345 Continuously variable transmission  
A continuously variable transmission including at least a primary pulley fixed to a primary shaft, a secondary pulley fixed to a secondary shaft and an endless transmission element located between...
5094129 Hydraulic control apparatus for vehicle continuously variable transmission, having means for limiting increase in input shaft speed after the speed rises to predetermined level with vehicle speed  
A hydraulic control control apparatus for controlling a speed ratio of a vehicle continuously variable transmission, which includes a device for producing a first pressure varying with the input...
5052980 Hydraulic control apparatus for vehicle power transmitting system having continuously variable transmission  
A hydraulic control apparatus for a power transmitting system for an automotive vehicle having a continuously variable transmission which has a first and a second shaft, a pair of variable-diameter...
5006092 Continuously variable transmission power train configuration  
A power train configuration for a continuously variable transmission includes a slippable start clutch located upstream of a belt and sheave system and a pair of non-dynamic forward-reverse...
4969856 Pulley type speed-shifting device  
In a pulley type speed-shifting device with a belt trained between a pair of variable speed pulleys, a movable sheave of each pulley is driven by a cam mechanism. Each cam mechanism has a...
4967357 Constant speed holding apparatus  
A constant speed holding apparatus which, once a vehicle speed is set, maintains the cruise of the vehicle at constant speed by both variable speed control and throttle control. The difference...
4944713 Treadmill speed reset system  
A treadmill having a walking belt with a constant speed drive motor and a transmission for adjusting the speed of the walking belt. The transmission employs input and output variable pitch pulleys...
4925432 Belt-type continuously variable transmission and engine speed control device therefore  
A belt-type continously variable transmisison having an automatic clutch is provided with fixed and variable pulley elements on the driving pulley so configured as to permit some degree of slippage...
4923433 Transmission ratio control system for a continuously variable transmission  
A control system for a continuously variable transmission for a motor vehicle has a transmission ratio control valve for controlling the transmission ratio. The system has a drive pulley having a...
4909776 Continuously variable transmission  
One of bolt section or a nut section on a ball screw devices, or nut sections (for example) are connected to gear sections axially movable, while the bolt sections are connected to a stationary...
4861317 Speed changer pulley  
A speed changer pulley comprises two annular flanges one of which is movable axially on a hub under the control of elastic return member constituted by at least one diaphragm encased with a...
4820242 Continuously variable transmission  
A continuously variable transmission has a drive pulley having a movable disc, a driven pulley having a movable disc, and a belt engaged with both pulleys. The amount of offset between a center...
4764157 Tensioning device for drive belt assemblies  
A tensioning mechanism for drive belts which consists of a support arm, a rotating tensioning roll mounted on the arm, and a pivot bearing on the support arm a certain distance away from the...
4743041 Bicycle with automatically variable gear ratio drive  
A bicycle is provided with an automatically variable gear ratio drive by employing a frame having a bifurcated truss rotatably supporting an axle for the rear wheel, this axle being fixed to the...
4718012 Control system for drive train including continuously variable transmission  
A control system for a motor vehicle drive train including a continuously variable transmission is disclosed wherein a command signal is generated in response to the sum of an integral control...
4701853 Control device in continuously variable transmission system for vehicle  
In a control device in a continuously variable transmission system for a vehicle, wherein the continuously variable transmission system is provided on a power transmission route of an engine and a...
4649486 Control method for continuously variable transmission or the like  
In order to prevent belt slippage induced by overly rapid depressurization of a chamber forming part of a continuously variable transmission V-belt pulley control arrangement, and simultaneously...
4634404 Method of controlling rotation of a V-belt drive  
A method of controlling the speed of the output of a V-belt drive having an output driven pulley driven by a V-belt from an input driver pulley wherein the rotational speed of the driver pulley is...
4634405 Pulley construction and method of making the same  
A pulley construction and method of making the same are provided, the pulley construction having a pair of opposed flanges respectively provided with surfaces for engagement with a V-belt...
4626227 Spring-locked variable speed pulley  
A spring-locked variable speed pulley, such as may be used as a drive device for automotive, motorcycle or industrial applications, wherein the engagement of a spring with the side of a stopper and...
Matches 1 - 50 out of 83 1 2 >