| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474070000 | Condition responsive (e.g., responsive to speed, load, etc.) | 16 |
| 20080242459 | Transmission, Power Unit Having the Same, Vehicle, Controller for Transmission, and Method of Controlling Transmission - To prevent engine speed from increasing during low-speed operation, a transmission includes a change-gear mechanism, a centrifugal clutch, a control unit and a secondary sheave rotation sensor. The change-gear mechanism has an input shaft, an output shaft and an actuator for changing a change-gear ratio between the input and output shafts. The centrifugal clutch is connected to the output shaft. The control unit controls the actuator. The secondary sheave rotation sensor detects and outputs a rotational speed of the output shaft to the control unit. The control unit controls the actuator based on a target change-gear ratio obtained by dividing a target rotational speed of the input shaft by the rotational speed of the output shaft. | 10-02-2008 |
| 20090191994 | ELECTRICALLY OPERATED DERAILLEUR THAT RE-ENGAGES A DISENGAGED DERAILLEUR FORCE OVERLOAD CLUTCH - A derailleur includes a motor that drives a drive member, a driven member driven by the drive member, and a clutch having a first element that disengages from a second element when substantial resistance exists in a power transmission path between the drive member and the driven member. An apparatus for controlling the derailleur comprises a re-engage command receiving circuit and a re-engagement circuit, wherein the re-engage command receiving circuit receives a re-engage command signal to re-engage the first element with the second element when the first element is disengaged from the second element, and the re-engagement circuit re-engages the first element with the second element in response to the re-engage command signal. | 07-30-2009 |
| 20100029421 | CRANKSHAFT REVERSAL DETECTION SYSTEMS - A crankshaft reversal detection system includes a sensor module and a control module that communicates with the sensor module. The sensor module detects position of a belt tensioner that communicates with a crankshaft driven accessory drive belt. The control module determines a rotational direction of the crankshaft pulley based on the position of the belt tensioner. | 02-04-2010 |
| 20110053718 | CONTINUOUSLY VARIABLE TRANSMISSION AND CONTROL METHOD THEREOF - An inertia torque input into the continuously variable speed change mechanism from the subtransmission mechanism is estimated during the shift in the subtransmission mechanism. During the shift in the subtransmission mechanism, a required oil pressure, which is an oil pressure required to maintain a contact frictional force between the respective pulleys and the wrapped member, is calculated on the basis of an input torque into the continuously variable speed change mechanism and the inertia torque. | 03-03-2011 |
| 20110124450 | Stepless variable transmission device with parallel low gear wheel group - The present invention relates to a stepless variable transmission device with parallel low gear wheel group, which is the first case that a low gear transmission wheel group equipped with a one-way transmission unit, which transmits with fixed speed ratio in same rotary direction, is installed between the input shaft and the output shaft of a stepless variable transmission device; and which is installed with the clutch device | 05-26-2011 |
| 20110183794 | PEDAL DRIVEN APPARATUS HAVING A MOTOR - A hybrid bicycle is provided which is manually propelled, but may include a motor unit for assisting forward propulsion of the bicycle. The bicycle has a control system for providing a control input for another component of the bicycle. Where that component comprises the motor, the control input is for increasing drive power applied by the motor unit to said bicycle. Where the component is a continuously variable transmission (CVT) for the bicycle, the control input is for continuously varying the gearing ratio of the CVT. Located adjacent a drive sprocket is a moveable plate member. The plate member and the drive sprocket are mounted for rotation about an axis of rotation of a pedal spindle, although the sprocket is not fixed for rotation with the pedal spindle. The drive sprocket is loosely coupled to the plate member with the plate member being moveable relative to the sprocket by a limited distance in a rotational direction. The plate member acts on a lever mechanism when it is moved relative to said drive sprocket such that any movement of the plate member results in an axial movement of an actuator member which triggers the control system to generate the control input in response to the amount of any movement of the plate member relative to the sprocket. | 07-28-2011 |
| 20110237369 | METHOD FOR CONTROLLING A NORMAL FORCE IN A FRICTIONAL CONTACT OF A CONTINUOUSLY VARIABLE TRANSMISSION - A method is provided for controlling a normal force in a frictional contact of a continuously variable transmission including an input pulley and an output pulley where between an endless transmission element is arranged that is held between and in frictional contact with two pulley discs of each respective pulley under the influence of a respective normal force, wherein, as part the control method, the normal force at one pulley is actively oscillated, wherein a resulting oscillation of one of, or a ratio or difference between both of, a rotational speed of the input pulley and a rotational speed of the output pulley is determined and wherein at least one normal force is controlled in dependency on a correlation between the active oscillation and the resulting oscillation. The method includes a calibration step wherein a phase difference between the active oscillation and the resulting oscillation is determined. | 09-29-2011 |
| 20110256968 | Isolator - An isolator comprising a shaft ( | 10-20-2011 |
| 20110263364 | Infinitely Variable Transmission - A step less, infinitely variable transmission converting rotational input power to rotational output power using positively engaged mechanics without relying on friction to transmit power and having minimal intermittent motion. The transmission includes a plurality of input chains with drive pins and a rotatable output chain with engagement slots meshing with input pins. The input chains have a plurality of horizontal tracks that control the pins' horizontal position. Precise pin horizontal positions are controlled by another track—a synchronizing track. The synchronizing track is controlled by any combination of high speed electronics, computers, linear actuators, and servo motors. In another embodiment, mechanical gears and mechanical calculators can govern the synchronizing tracks. The constant need to synchronize elements with intermittent motion, and not relying on friction to transmit power place the transmission most closely with the ratcheting type of continuously variable transmissions, despite the use of ratchets. | 10-27-2011 |
| 20120329589 | Torque-driven Automatic Transmission Device for Bicycle - The present invention relates to a bicycle. In particular, it relates to bicycle with torque-driven automatic transmission. The automatic transmission device mainly includes a torque sensor, a body strength selector, a slope sensor, a front gearshift driving mechanism and a rear gearshift driving mechanism. | 12-27-2012 |
| 20130237351 | DECOUPLER ASSEMBLY HAVING LIMITED OVERRUNNING CAPABILITY - In one aspect, a decoupler assembly is provided for use between a shaft and an endless drive member that is used to drive the shaft. The decoupler assembly includes a pulley, a hub and an isolator spring that is preferably a coiled torsion spring. The two ends of the spring are engageable, at least indirectly, with the pulley and the hub for the transfer of torque therebetween. At least one of the ends of the spring engages an engagement structure (on either the pulley or the hub) that includes a helical axial shoulder and a driver wall. The spring transfers torque in one direction through the driver wall (e.g. when the pulley overruns the hub), but the spring end is not fixedly connected to the driver wall. When the hub overruns the pulley, there is relative rotation between the spring and whichever of the hub and pulley it is not fixedly connected to. Accordingly, there is relative rotation between the spring end and the helical axial shoulder and the driver wall. This causes the spring end to separate from the driver wall and ride up the helical axial shoulder. This causes the spring to compress axially. The spring coils have a selected amount of spacing so that the spring can be compressed by a selected amount axially. This sets the amount of relative rotation (and the amount of overrun) that is available between the pulley and the hub in the situation when the hub overruns the pulley. | 09-12-2013 |
| 20130267361 | OVERRUNNING ISOLATING DECOUPLER PULLEYS - Embodiments of the present invention provide improved overrunning pulleys that overcome one or more of the deficiencies in the prior art noted above. Embodiments of the present invention provide pulleys that are “springy” in the torque direction, yet have a lower effective spring constant (e.g., are less stiff) over a greater angular range. Further, in at least some embodiments, the inventive pulleys use a low cost and simple torque transfer geometry. Further, in at least some embodiments, the inventive pulleys afford significant overrun. Further, in at least some embodiments, the inventive pulleys are radially small in an overall envelope, in order to allow the alternator to reach its highest possible rotational speed, and thus output, during engine idle. Further, in at least some embodiments, the inventive pulleys are more durable, as they offer the aforementioned dynamics in both directions (torque and counter-torque). | 10-10-2013 |
| 20140274506 | ACCESSORY DRIVE DECOUPLER - Pulley assemblies are disclosed that include a pulley body, a hub disposed within the bore of the pulley body, and a one-way clutch concentric about the hub. The one-way clutch has a plurality of cantilevered members that each include a friction surface and a cantilevered end and a biasing member in contact with one cantilevered member to bias the cantilevered members into continuous frictional engagement with the bore of the pulley body. Each of the cantilevered members is pivotable about its cantilevered end and is partially nested within an adjacent cantilevered member to form an annular body. This construction places the friction surface of each cantilevered member facing the bore of the pulley body. In operation, the pulley body rotates in a predominant direction which activates the plurality of cantilevered members to link the pulley body to the hub for simultaneous rotation. | 09-18-2014 |
| 20160096589 | BICYCLE SHIFTING CONTROL APPARATUS - A bicycle shifting control apparatus comprises a sensing target, a rotational-position sensing unit, and a transmission controller. The sensing target is rotatable with a sprocket assembly. The rotational-position sensing unit is configured to contact the sensing target to sense a rotational position of the sensing target as the rotational position of the sprocket assembly. The transmission controller is configured to control a derailleur based on the rotational position sensed by the rotational-position sensing unit. | 04-07-2016 |
| 20160200396 | METHOD AND APPARATUS FOR CONTROLLING AUTOMATIC GEAR-CHANGE PROCESSES OF AN ELECTRIC GEAR-CHANGE APPARATUS OF A BICYCLE | 07-14-2016 |
| 20160375957 | BICYCLE TRANSMISSION DEVICE - A bicycle transmission device is basically configured to improve the detection accuracy of the tilt angle of the road surface. The bicycle transmission device has a transmission for changing the gear ratio of the bicycle, and a tilt sensor disposed on the transmission and that outputs a signal that reflects the inclination of the transmission. | 12-29-2016 |
