Abstract: A continuously variable transmission comprises an input shaft and an output shaft, a drive wheel, a toothed wheel or a chain wheel, an endless sleeve, a ring wheel, at least one linking member, wedge teeth or a chain, wherein the drive wheel is provided with an annular recess in which a plurality of reversal wedge teeth run, and the wedge teeth are connected with a head portion of the linking member connected with the ring wheel, the spread of axles between the drive wheel and the ring wheel is adjusted via the swinging of the endless sleeve; and with the aid of the locking and releasing operations of the wedge teeth, the linking members are urged to drive the ring wheel, whereby changing the input and output transmission ratio.

Abstract: A gear-shifting apparatus is provided which easily returns a derailed chain to engagement with a tension and/or guide pulley when the chain comes off the respective pulley due to a gear-shifting operation, and enables a gear-shifting operation to be performed when a gear-shifting is halted or is rotating backward. A derailer includes an arm which supports a tension pulley and a pulley support member which supports a guide pulley. The arm is provided with engagement recovery-guiding parts for causing respectively derailed parts of a chain, which are derailed from the orbital plane of the tension pulley, to engage with the tension pulley. The pulley support member is provided with a first extending part and a second extending part for the purpose of causing derailed parts of a chain, which has been derailed from the orbital plane of the guide pulley, to engage with the guide pulley.

Abstract: A belt type continuously variable transmission includes a primary shaft and a secondary shaft, wherein the primary shaft is supported on a case via a first rolling element bearing, and the secondary shaft is supported on the case via a second rolling element bearing, the case is formed with a bolt hole at each of an even number of locations in a region separate from a shaft center plane, which is a plane that passes through a shaft center of the primary shaft and a shaft center of the secondary shaft, and first and second stopper plates that each hold down outer races of the first and second rolling element bearings are fixed to the case by bolts mounted in the bolt holes.

Abstract: The present invention relates to a propulsion mechanism provided with two independent actuators, the first actuator being connected via a first connection member CD to a first converter ED, RLD mounted on a transmission shaft AT. Further, the second actuator is connected via a second connection member CG to a second converter EG, RLG mounted on the same transmission shaft AT.

Abstract: A straddle-type vehicle that can be accelerated rapidly by a simple operation irrespective of a selected drive mode includes a control unit that executes first control of switching between a plurality of drive modes A and B, and in each of at least two of the drive modes A and B, and second control of shifting the change gear to a kick-down state A1 or B1 in which the speed change ratio is lower than that of the drive mode A or B, according to operation of a shift-down operation member.

Abstract: A transmission mechanism obtains reduced cost by facilitating a process for guide grooves formed on an inner cylinder of a ball spline mechanism and regulates a movement of a drive sprocket in an axial direction by means of a simple structure. A one-way clutch transmits torque only when a crankshaft rotates positively to a drive sprocket through a ball spline mechanism. A clutch outer body and an inner slide member of the ball spline mechanism are composed of members separate from and coupled to each other by coupling pins to be integrally rotatable in an overlapping portions in an axial direction. Guide grooves for housing balls of the ball spline mechanism are formed on the inner slide member while opening to the axial direction at both ends thereof in the axial direction.

Abstract: Drivetrains and frames for vehicles, equipment, machines, etc. Some embodiments of the drivetrains and frames are particularly suited for human powered machines, such as bicycles and exercise equipment. In some embodiments, a drivetrain includes a reciprocating crank coupled to a crank pivot. A lever couples to the crank via a lever pivot positioned on the crank. A lever stop cooperates with a lever guide surface to guide a motion of the lever as the lever pivots about the lever pivot. The lever and/or the crank are operably coupled to a drive pulley, idler pulley, and/or compound pulley. In some embodiments, a drive cable operably couples the lever and/or the crank to the drive pulley, idler pulley, and/or the compound pulley. In one embodiment, one or more pulleys couple to the lever's distal ends. In some embodiments, the drivetrain includes a wheel hub adapted to receive torque from the crank via a drive pulley.

Abstract: A supercharger control system is installed at the bottom front end of the engine, directly onto the crankshaft. An accessory drive belt around the accessory belt pulley rotates continuously to keep vehicle accessories operating. A second belt around a larger pulley drives the supercharger blower. When the dashboard mounted switch is turned on, electricity from the engine energizes an electromagnet, which compels engagement of the rotating accessory pulley with the supercharger pulley by means of a slide plate. The belt around the supercharger pulley then rotates, operating the supercharger. If the driver does not require extra power and performance delivered by the supercharger, the switch is turned off, stopping the flow of electricity. This shuts down the magnetic field, causing the pulleys to be disengaged and disconnecting the supercharger, while still allowing the crankshaft to operate the accessories.

Abstract: A decoupler assembly is provided for a system that employs an endless power transmitting element. The decoupler includes a one-way clutch with a wrap spring and a torsion spring that are disposed between a pulley, which is engaged to the endless power transmitting element, and a hub. The one-way clutch permits overrunning of a driven or output one of the pulley and the hub, whereas the torsion spring stores and releases energy to attenuate the response of the one-way clutch in a manner that provides improved durability of an interface between the wrap spring and the pulley.

Abstract: An apparatus for adjusting a position of a bicycle control device comprises a memory that stores a plurality of operating position values corresponding to a plurality of operating positions, a manually operated adjustment value providing unit that provides an adjustment value, and an updating unit. The updating unit provides a first updated operating position value from a first operating position value from the plurality of operating position values based on the adjustment value, and the updating unit provides a second updated operating position value from a different second operating position value from the plurality of operating position values based on the adjustment value.

Abstract: Particulate filling devices and methods are disclosed that use a loading system generally including a loading cart, a drive system, and a line assembly. The drive system generally includes a motor, a drive shaft, a driven shaft, a spool, a plurality of cable partitions, and a controller. Each line assembly generally includes cable sections, swivel connectors, one or more spring blocks and a weight.

Abstract: A stepless transmission for a flat planer has a driving shaft connected with a motor and fitted with a driving cam member inside the stepless transmission, able to keep its wheelbase altered. The driving cam member is pivotally connected with a driven pulley set by means of a driving belt. The driven pulley set is correspondingly provided with a driven cam member having an adjustable wheelbase. The driving cam member can be driven by a jaw of a hand rod to keep the wheelbase of the driving cam member altered, so as to control a conveying speed of an input roller.

Abstract: 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 provides a signal to operate the bicycle transmission when the power characteristic falls below a predetermined value. Alternatively, the control apparatus comprises a running condition time sensor and a control unit operatively coupled to the running condition time sensor. The running condition time sensor senses a time interval of a running condition of a bicycle, and the control unit provides a signal to operate the bicycle transmission to a predetermined gear ratio when the time interval of the running condition passes a selected value.

Abstract: 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 provides a signal to operate the bicycle transmission when the power characteristic falls below a predetermined value. Alternatively, the control apparatus comprises a running condition time sensor and a control unit operatively coupled to the running condition time sensor. The running condition time sensor senses a time interval of a running condition of a bicycle, and the control unit provides a signal to operate the bicycle transmission to a predetermined gear ratio when the time interval of the running condition passes a selected value.

Abstract: 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 rate restricted primary pressure by restricting respective reduction rates of the target secondary pressure and the target primary pressure when the reduction rates of the target secondary pressure and the target primary pressure calculated by a target secondary pressure calculating section and a target primary pressure calculating section, respectively, are equal to or greater than respective predetermined values. The secondary pressure and the primary pressure are controlled based on the reduction rate restricted secondary pressure and the reduction rate restricted primary pressure whose reduction rates have been restricted such that the gradient thereof are small.

Abstract: 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 working pressure range and also within a maximum working pressure range that lies between the nominal range and a system pressure value. For the same change in the control variable, the working medium pressure is changed by a greater amount in the maximum pressure range than it is in the nominal pressure range. Thus, in the nominal pressure range a precise adjustment of the working pressure can be made, and in the maximum pressure range a larger working pressure adjustment can be made to respond to suddenly increased external forces that act on the hydraulic device.

Abstract: 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 value and a downshift threshold value for the running condition, and a control mechanism. The control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding upshift threshold value and downshift threshold value for a first predetermined time interval. In another embodiment, the control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding one of the upshift threshold value and the downshift threshold value at both a first detection and a second detection, wherein the second detection occurs after the first detection.

Abstract: A scroll sawing machine includes a first transmitting shaft driven by an output shaft of a motor, a second transmitting shaft rotatable to move a blade-driving member in an upright direction so as to enable a saw blade to perform reciprocating movement, and a speed ratio varying device disposed to couple the transmitting shafts. The device includes two pitch-variable first and second pulleys mounted on the transmitting shafts, a belt trained on the pulleys, and a control unit operable to move a movable disc of the first pulley toward or away from a fixed disc of the first pulley so as to vary the radial distances between the belt and each of the transmitting shafts, thereby varying the speed ratio of the second transmitting shaft to the first transmitting shaft.

Abstract: 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 value and a downshift threshold value for the running condition, and a control mechanism. The control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding upshift threshold value and downshift threshold value for a first predetermined time interval. In another embodiment, the control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding one of the upshift threshold value and the downshift threshold value at both a first detection and a second detection, wherein the second detection occurs after the first detection.

Abstract: The invention involves an agricultural machine with a drive train to be coupled onto the power take-off shaft of a tractor, with a transmission integrated into the drive train. In these types of agricultural machines it is frequently necessary, after starting at a high torque, to select a lower transmission ratio, so that the agricultural machine can be driven at an optimal speed by an engine to which sufficient power is then still available for the propulsion for the tractor. In order to make this possible, it is proposed, in an agricultural machine of this type, to construct the transmission as a continuously variable conical-disk belt or chain transmission which is preferably fully hydraulic, is coupled with a hydraulic clutch, and has idle-shifting in the starting transmission ratio.

Abstract: 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 of the drive end and a secondary rpm of the output end which are transmitted to the arrangement. A fault signal is generated which is dependent upon the instantaneous primary rpm and/or the instantaneous secondary rpm and indicates whether a value for the transmission ratio is to be outputted as the signal representing the transmission ratio. This value is computed from the detected instantaneous values for the primary rpm and the secondary rpm.

Abstract: A continuously variable transmission comprises a driving pulley (11), a driven pulley (21), an endless dry-type belt (15) wound around both pulleys, a tension-adjusting device (50) arranged between the driving and driven pulleys for pressing the slack side of the belt to generate belt tension, stroke mechanisms (14, 22) provided on the driving and driven pulleys respectively for axially shifting the movable sheaves depending on inputted rotational force, a ratio-changing motor (40), and a gear mechanism for transmitting the rotational force generated by the motor to both stroke mechanisms as well as for mechanically connecting both stroke mechanisms in such a way that the movable sheaves of both pulleys can be shifted synchronously and axially oppositely in relation to the fixed sheaves. With this arrangement, the belt is prevented from slipping, the transmission ratio can be controlled precisely and stably, and the shift-response of this transmission can be improved.

Abstract: 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 bicycle component control unit and to the computer control unit. The control transmitter communicates both power and data to the control receiver over the transmission path.

Abstract: A drive transmission apparatus is disclosed in which a driven shaft (18) carries two freely rotatable gear wheels (52) which are in mesh with gear wheels (50). The gear wheels (50) are fast in rotation with threaded spindles (32) which extend radially with respect to the shaft (18). Each spindle (32) passes through a tapped bore in a block (38). Each block (38) carries a sprocket (36). There are one-way clutches between the sprockets (36) and blocks (38). When viewed from the side the axes of the sprockets (36) are located on the circumference of a circle the size of which changes when the spindles (32) are rotated to drive the blocks (38) and hence the sprockets (36) radially inwardly or radially outwardly. A chain (72) is trained around the sprockets (36).

Abstract: A decoupler for an alternator pulley in a serpentine drive system has a resilient, helical spring member that couples the alternator pulley with a hub structure through a spring retaining member. A bushing is disposed between the spring retaining member and the hub structure to facilitate sliding engagement therebetween. An annular sleeve member is disposed between the spring member and the alternator pulley to facilitate sliding engagement therebetween. The spring member is connected at one end thereof to the hub structure and connected at an opposite end thereof to the spring retaining member. The resilient spring member transmits the driven rotational movements of the alternator pulley by the serpentine belt to the hub structure such that the alternator shaft is rotated in the same direction as the alternator pulley while being capable of instantaneous relative resilient movements in opposite directions with respect to the alternator pulley during the driven rotational movement.

Abstract: An indexing and braking mechanism for a manual transmission having a shifting mechanism and at least one rotatable drive shaft is disclosed. The mechanism includes an indexing mechanism for controlling movement of the shifting mechanism between at least a first position and a neutral position. The indexing mechanism has a plate having a plurality of notches formed thereon, wherein one notch corresponds to the first position and another notch corresponds to the neutral position. A locking mechanism is provided for selectively limiting movement of one of the at least one rotatable drive shaft. The locking mechanism is adapted to selectively engage the plurality of notches to selectively maintain the indexing mechanism in one of the first position and the neutral position. The locking mechanism includes an indexing lever having a projection extending from one side thereof. The projection is sized to be received within one of the plurality of notches.

Abstract: 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 friction force of input and output pulleys are overcome, as a consequence of which the stable friction transmission with high efficiency and widened ratio range can be achieved. The continuously variable transmission includes a first transmission device performing higher efficiency in a big ratio range of the transmittable range than a second transmission device, the second transmission device performing higher efficiency in a small ratio range of the transmittable range than the first transmission device, and a switching device changeably selecting in the alternative the first and the second transmission devices, to combine with the big and small ratio ranges to enlarge an entire transmittable range while keeping high efficiency.

Abstract: 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 and at least one clutch and a vehicle engine in the drive train of the vehicle, the clutch having various operating states. The essence of the invention is the adjustment of the tension at least in dependence upon the operating state of the clutch. The adjustment of the tension of the continuous part is especially advantageous when it is undertaken in dependence upon whether an adjustment of the transmission ratio of the continuously variable transmission takes place toward higher transmission ratios or to lower transmission ratios. Furthermore, the adjustment of the tension can take place in dependence upon the activation of an ABS system, ASR system and ESP system.

Abstract: 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 has an advantageous effect on leakage and fuel consumption.

Abstract: 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 revolution-multiplier device and a torque-limiter device, which are disposed in series with one another and constitute part of the unit for connection of the pulley to the shaft of the alternator.

Abstract: An improvement relating to an infinitely variable ratio transmission having a pair of oppositely oriented variable diameter torque input and output pulleys is disclosed wherein the conical surfaces of the pulleys include a multiplicity of axially and circumferentially movable sprocket bars to accommodate the fixed length of an inextensible drive belt or chain wrapping about the pulleys.

Abstract: 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 axially in the direction of the transmission element by an urging element effecting a clamping force between the sheave and the transmission element, the effected clamping force corresponding to a force sufficient for transmitting a torque to be transmitted by at least virtually slipless friction between the pulley sheaves and the belt, increased by a safety margin expressed as a factor corresponding to a percentage of the torque to be transmitted throughout a major part of the range of torques transmittable to the relevant transmission.

Abstract: A continuously variable transmission, provided with two adjustable pulleys, each pulley comprising a pair of mutually displaceable essentially frusto-conical pulley sheaves having a radial dimension provided on a pulley shaft, each sheave having a sheave face, whereby the sheave faces of a pulley are mutually oriented at a pulley angle, and with an endless flexible belt for transmitting torque comprising two lateral side faces, which are mutually oriented at a belt angle ( alpha ) such that the flexible belt tapers radially inwardly and which are intended for interacting with the sheave faces of a pulley under the influence of a clamping force to be exerted on the flexible belt by the sheaves. The belt angle is marginally, but notionally, larger than the pulley angle (beta) of at least one pulley for at least a substantial part of the radial dimension of the pulley sheaves.

Abstract: 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 include a first pulley that has a first and second face that are movable relative to each other by activation of the actuator mechanism. When the first and second faces of the first pulley are located in a first position, a belt located on the first pulley remains motionless. The first and second faces can be moved by the actuator mechanism into a second position where the first and second plates engage the belt with enough frictional force to cause the belt to start moving about the first pulley. The first and second faces of the first pulley can also be moved between the second position and a third position such that the space between the faces becomes smaller.

Abstract: A control mechanism for use with first and second bicycle transmissions includes a transmission position communication path for communicating information indicating the operational positions of the first and second transmissions; a transmission command communication path for communicating information for controlling the operation of the first and second transmissions; a shift command communication path for receiving shift commands to select a speed stage of the bicycle; and a transmission control unit operatively coupled to the shift command communication path, to the transmission position communication path and to the transmission command communication path for receiving the shift commands and the information indicating the operational positions of the first and second transmissions and for generating the information for controlling the operation of the first and second transmissions.

Abstract: The invention concerns a device in a continuously variable belt transmission system for guiding a conical pulley (3) of a variator on a variator shaft (1). The movable conical pulley (3) is fitted onto two bearing sections (4, 5) of the variation shaft (1). To transfer torque between the movable conical pulley (3) and the variator shaft (1), at least one cylindrical pin (6) is provided, which is fitted into an axial guide groove (7) in the variator shaft (1) and an axial guide groove (8) of the movable conical pulley (3).

Abstract: Methods and apparatus for a vehicle drive control apparatus changes in the transfer torque capacity of a power transfer device according to various states of operation with respect to at least one drive power source. The vehicle drive control apparatus includes a power transfer device that has a variable transfer torque capacity and the drive power sources that rotate a device wheel via the power transfer device. A controller is included that causes a vehicle to selectively run in a variety of run modes that differ in states of operation with respect to at least one of the drive power sources. The controller changes the transfer torque capacity of the power transfer device in accordance with the various run modes. According to the vehicle device control apparatus, a target oil pressure is raised by a predetermined amount when the mode of run is change, or when the vehicle descends in a direction opposite to a vehicle starting direction at the time of a hill climb start.

Abstract: Since a pressing force applied to a pulley has ability to regulate a rotation speed and an elastic force applied to the pulley has ability to regulate torque, by independently applying the pressing force and/or the elastic force to the single pulley, and externally regulating the pressing force and/or elastic force to arbitrary values independently, a practical speed-change range is widened irrespective of a type of belt and high effective transmission is achieved. The pulley pressure control system comprises pressure application means for applying at least one of a pressing force and an elastic force to each movable disk, in which the pressing force applied to the movable disk regulates a rotation speed of each pulley by shifting a position of the endless belt on the pulley and the elastic force applied to the movable disk regulates torque using a frictional force.

Abstract: 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 number of available gear ratios. In addition, a programmable controller is provided for selectively controlling the transmission to operate in a first operating configuration utilizing a first predetermined number of the available gear ratios that is less than the maximum number of available gear ratios. Moreover, the programmable control can have additional transmission configurations by selectively modifying certain operating characteristics, including for example, available gear ratios, desired operating gear ratios, maximum torque limits, shift points, default starting gear ratio, data relating to a predetermined shift strategy, a coast down gear ratio, shift delay timing, and/or skip shifting.

Abstract: A thrust ratio calculation section 50 calculates a thrust ratio based on driving pulley thrust from a driving pulley thrust calculation section 44 and following pulley thrust from a following pulley thrust calculation section 48. A thrust ratio state of change identifying section 52 detects a peak of a thrust ratio caused by changing of the following pulley thrust, based on the thrust ratio and the following pulley thrust. The following pulley thrust is maintained such that the thrust ratio remains at the peak. This enables appropriate control of the pulley thrust.

Abstract: 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 and the controller shifts gears within the range depending upon a preset map of bicycle speeds and gear steps. The operator can select other ranges as desired by upshifting or downshifting. The controller also has at least one cruising mode that decreases the likelihood of inadvertent shifting during operation of the bicycle at speeds within a preset range of speeds. In addition, the controller has an elapse mode that further reduces the number of available gear steps in a range during resumed operation after slowing below a preset speed or stopping.

Abstract: 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 and the controller shifts gears within the range depending upon a preset map of bicycle speeds and gear steps. The operator can select other ranges as desired by upshifting or downshifting. The controller also has at least one cruising mode that decreases the likelihood of inadvertent shifting during operation of the bicycle at speeds within a preset range of speeds. In addition, the controller has an elapse mode that further reduces the number of available gear steps in a range during resumed operation after slowing below a preset speed or stopping.

Abstract: Disclosed is a continuously variable transmission in which when a shaft torque is secured by the belt friction force generated by externally pressing a pulley, the disablement of transmission caused by a belt rolling-in phenomenon within a pulley resulting from instability of the friction force or the friction coefficient as the pressing force is applied, or the deterioration of efficiency caused by the short or surplus of the friction force of input and output pulleys in a big ratio area are overcome, as a consequence of which the stable friction transmission with high efficiency can be achieved without depending on the kind of belts such as a tension type or a compression type.

Abstract: 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 include a first pulley that has a first and second face that are movable relative to each other by activation of the actuator mechanism. When the first and second faces of the first pulley are located in a first position, a belt located on the first pulley remains motionless. The first and second faces can be moved by the actuator mechanism into a second position where the first and second plates engage the belt with enough frictional force to cause the belt to start moving about the first pulley. The first and second faces of the first pulley can also be moved between the second position and a third position such that the space between the faces becomes smaller.

Abstract: 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 disengaged. The pressure level of the secondary pulley (3) is hereby raised and the transmission ratio of the CVT is changed in accordance with a predeterminable transmission ratio change and a predeterminable gradient.

Abstract: 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 revolution-multiplier device and a torque-limiter device, which are disposed in series with one another and constitute part of the unit for connection of the pulley to the shaft of the alternator.

Abstract: The crankset with no dead center position includes a single crankshaft (108), fitted with a left crank (11) and a support hub (119) provided with a lever (20). This hub is mounted by a roller bearing (28) in a stationary eccentric member (26) which supports a rotatable chain wheel carrier (15). The hub also supports the right crank (13) via pre-stressed bearings (62, 63). The lever (20) and said crank (13) drive the chain wheel carrier by means of two articulated connecting rods (21 and 23). An indexing ring (30) is provided on the fixed crankset tube (2) to prevent the eccentric member (26) from rotating. These means can include a force sensor allowing a measuring device to calculate the energy and the power transmitted through the crankset. Such a crankset can be used for driving bicycles and other muscle-powered vehicles or machines.

Abstract: 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 and the controller shifts gears within the range depending upon a preset map of bicycle speeds and gear steps. The operator can select other ranges as desired by upshifting or downshifting. The controller also has at least one cruising mode that decreases the likelihood of inadvertent shifting during operation of the bicycle at speeds within a preset range of speeds. In addition, the controller has an elapse mode that further reduces the number of available gear steps in a range during resumed operation after slowing below a preset speed or stopping.

Abstract: A continuously variable transmission includes a set of pulleys mounted on respective pulley shafts (35, 36) and mounted with an endless transmission element for transmitting rotational movement from one pulley to the other, whereby the pulleys are incorporated in the transmission pre-mounted on an common support plate (22). The transmission thereby is provided with a favorable produced housing.

Abstract: A variable speed mechanism for propelling an associated lawn mowing apparatus has a variable pitch pulley assembly, a belt which connects the variable pitch pulley assembly to a transmission, a control arm assembly for controlling the variable pitch pulley assembly, and a speed selector for selectively adjusting the control arm assembly. The speed selector is positioned corresponding to the desired lawn mowing apparatus ground speed. This creates tension in a cable which moves a control arm. When the control arm is moved, it rotates about a pivot shaft adjusting the position of a bearing cup which, in turn, adjusts the position of the moveable pulley half within variable pitch pulley assembly. Once the pulley assembly has been positioned, the effective belt diameter is set. If the effective belt diameter is increased, the speed supplied to the transmission is increased assuming a fixed pulley size on the transmission input.