A continuously variable transmission apparatus has clutch device having a low speed clutch; a high speed clutch; and, a controller switching the transmission state into any one of a low speed mode and a high speed mode by connecting any one of the clutches, wherein timings for signaling by the controller for switching the connected and disconnected states of the clutches vary according to the switching directions of the low speed and high speed modes; and, a timing for signaling for connecting the low speed clutch with respect to the moment for signaling for cutting off the connection of the high speed clutch in order to switch the high speed mode over to the low speed mode is set earlier than a timing for signaling for connecting the high speed clutch with respect to the moment for signaling for cutting off the connection of the low speed clutch.

Continuously variable transmission apparatus

Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of an IVT. In another embodiment, a control system includes a carrier member configured to have a number of radially offset slots. Various inventive carrier members and carrier drivers can be used to facilitate shifting the ratio of an IVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the carrier members. In one embodiment, the carrier member is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a carrier member is operably coupled to a carrier driver. In some embodiments, the carrier member is configured to couple to a source of rotational power. Among other things, shift control interfaces for an IVT are disclosed.

Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor

An infinitely variable transmission (IVT) having a rotatable input shaft arranged along a longitudinal axis of the transmission. In one embodiment, the input shaft is adapted to supply a lubricant to the interior of the transmission. In some embodiments, a stator assembly is coupled to, and coaxial with, the input shaft. The IVT has a plurality of planets operably coupled to the stator assembly. The planets are arranged angularly about the longitudinal axis of the transmission. In one embodiment, a traction ring is operably coupled to the planets. The IVT is provided with a housing that is operably coupled to the traction ring. The housing is substantially fixed from rotating with the input shaft. The traction ring is substantially fixed from rotating with the input shaft. In some embodiments, the IVT is provided with a lubricant manifold that is configured to supply a lubricant to the input shaft.

Continuously and/or infinitely variable transmissions and methods therefor

Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV). In some embodiments, said powertrain includes a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. In one specific embodiment, the control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also disclosed. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example.

Systems and methods for control of transmission and/or prime mover

An electronic controller for a variable ratio transmission and an electronically controllable variable ratio transmission including a variator or other CVT are described herein. The electronic controller can be configured to receive input signals indicative of parameters associated with an engine coupled to the transmission. The electronic controller can also receive one or more control inputs. The electronic controller can determine an active range and an active variator mode based on the input signals and control inputs. The electronic controller can control a final drive ratio of the variable ratio transmission by controlling one or more electronic solenoids that control the ratios of one or more portions of the variable ratio transmission.

Controller for variable transmission

PROBLEM TO BE SOLVED: To provide a simple continuously variable transmission easy in manufacture, wide in a shift range and capable of setting an output shaft to zero rotation and reverse rotation by shift operation. SOLUTION: This continuously variable transmission is provided with an input shaft 1, a shaft 3 concentric with the input shaft, brake devices 2, 13 capable of making the shaft 3 nonrotatable and capable of freely idly rotating concentrically with the input shaft 1, an arm 14 fixed to the input shaft 1, an intermediate shaft 11 rotatably journalled to one end of the arm, a pulley type continuously variable transmission for joining the shaft 3 and the intermediate shaft 11, an output shaft 8 rotatably journalled concentrically with the input shaft 1, a V pulley 7 fixed to the output shaft 8 and a V belt 10 for joining the V pulley 7 and a V pulley 6 fixed to the intermediate shaft 11.

Continuously variable transmission

PROBLEM TO BE SOLVED: To obtain a detecting device whose constitution is simple, by which pedaling force of bycycle can be detected precisely, which is small, and whose installation space is small. SOLUTION: The detecting device is provided with a rotation driving body 16 which is installed so as to be freely rotatably and movable relatively to the axial direction of the pedal shaft 14 of a bycycle and which is connected to a driving wheel. It is provided with a stationary body 28 which is installed at the rotation driving body 16 via a bearing 26 and which is at a standstill with reference to a frame 37 at the bycycle. transmission means 22, 24 by which the pedaling force of the pedal shaft 16 is transmitted to the rotation driving body 16 and by which a force proportional to the pedaling force of the pedal shaft 14 is transmitted to the stationary body 28 as a force in a thrust direction and a stress sensor 40 to which the transmitted force is applied are installed.

Detecting device for pedaling force of bicycle with motor

PROBLEM TO BE SOLVED: To provide an inexpensive device having a wide range of application and high energy efficiency, resistant to drift of a ship by wind, water stream, or tidal current when anchoring the ship on-water, capable of anchoring the ship at an arbitrary position, and enabling a ship operator to finely move the ship to a designated position. SOLUTION: In an anchor position control device, a ship 2 and a pulling body floated underwater or on the water surface in the vicinity of the ship are coupled by a flexible cable body or a rigid body having a joint 309, and a pulling force is generated in a front or lateral direction of the ship by an operation of a ship operator from the ship 2 to the pulling body, and the ship is thereby anchored in a designated position by offsetting the resistant applied on the ship by wind or water stream. Further, by a direction control using a sensor such as an electronic compass or GPS, or by a force of nature such as wind and water stream without using position control, a propulsive force of the pulling body can be turned in a direction of offsetting the force applied on the ship 2 from the wind and water stream. In addition, it can be used irrespective of the shape and size of the ship 2. COPYRIGHT: (C)2004,JPO

Tanimichi Takeshi

Papers

Continuously variable transmission

Detecting device for pedaling force of bicycle with motor

Anchor position control device of ship