A shift by wire parking system includes a park gear including a gear body and a plurality of teeth. The teeth are circumferentially spaced from one another. The park gear defines a plurality of void spaces between each pair of the plurality of teeth. The shift by wire parking system includes a circumferential body sized to fit inside each of the plurality of void spaces to lock a position of the park gear. The circumferential body is movable towards and away from the park gear between an engaged position and a disengaged position. In the disengaged position, the circumferential body is disposed outside each of the plurality of void spaces, thereby allowing the park gear to rotate. In the engaged position, the circumferential body is disposed inside one of the void spaces to lock the position of the park gear.

A transmission controller of a toroidal continuously variable transmission includes a gain setting unit that adjusts a gain of closed-loop control for calculating a target value of a roller position in accordance with a change in a rotation speed of a disc in a first rotation speed range and a second rotation speed range higher than the first rotation speed range. The gain setting unit changes, in the first rotation speed range, the gain so that sensitivity of the closed-loop control decreases with an increase in the rotation speed, and changes, in the second rotation speed range, the gain so that a rate of decrease in the sensitivity of the closed-loop control with the increase in the rotation speed is smaller than that in the first rotation speed range.

There is provided an outboard motor. In a posture in use of the outboard motor, an oil filter is inclined such that a mounting portion side is located lower than a tip end side and the mounting portion side is located at an inner side and a tip end side is located at an outer side in the width direction of the outboard motor, a cover mating position between an upper engine cover and a lower engine cover is set to a position lower than an upper part of the tip end, and is higher than a lower part of the mounting portion, and an electric actuator is mounted on a lower part of an engine block and is mounted on a position closer to a center of the engine relative to a position of an outermost end of the oil filter in a width direction of the engine.

A spool valve includes a spool in a spool insertion hole defined in a valve body. The spool is configured to be moved by an electric motor via a ball-screw to a first position where an input port is in communication with an output port, while the output port is not in communication with a drain port, and to a second position where the input port is not in communication with the output port, while the output port is in communication with the drain port.

A gearbox (1) is placed in a drive train between an electric motor (12) and an engine (13) of a vehicle. The gearbox (1) is placed in direct connection to an output shaft (2) of the electric motor (12). The gear box (1) has means to place it in three different modes.

A pulley for a continuously variable transmission (CVT) and a method of controlling the pulley. The pulley has a main shaft, a fixed sheave, a mobile sheave and a cam system. The fixed sheave is fixedly mounted on the main shaft and has a fixed belt groove portion. The mobile sheave is movably mounted on the main shaft and has a mobile belt groove portion, the mobile sheave is mounted on the main shaft such that the fixed belt groove portion and the mobile belt groove portion form a riding path for a drive belt and is axially movable with respect to the main shaft such as to vary an effective diameter of the pulley by increasing or decreasing an axial space between the mobile sheave and the fixed sheave. The cam system is mounted at one end via a bearing fitted around the primary shaft to the mobile sheave. The cam system is adapted to provide an axial movement to the mobile sheave in order to increase or decrease the axial space between the mobile sheave and the fixed sheave.

An electromagnetic continuously variable transmission system is provided, including: a pulley, including a first disc having an axial sleeve and a second disc, the first disc having a plurality of grooves which extend radially at one side, pulley balls being slidably received within respective ones of the grooves, the first disc having a first slope at another side, the second disc being located by the side of the first disc with the grooves; a driving shaft, disposed in the axial sleeve and the second disc, the first disc being axially slidable relative to the driving shaft; an electromagnetic assembly, disposed on the pulley, including electromagnets spacingly arranged in a part of the grooves; when each of the electromagnets is electrified and generate magnetism, each of the electromagnets magnetically attracts one of the pulley balls toward the axial sleeve.

A transmission speed control system for a walk-behind lawn mower includes a transmission, a transmission positioning assembly, and an electronic control unit. The transmission is tiltable about and operably engaged with a drive axle shaft. The transmission positioning assembly tilts the transmission between first and second angular positions. A belt tension between a drive belt and a transmission pulley of the transmission continuously increases from a minimum belt tension when the transmission is in the first angular position to a maximum belt tension when the transmission is in the second angular position. The rotational drive force exerted on the drive axle shaft by the transmission and a resulting driving speed of the lawn mower vary proportionally with the belt tension. The electronic control unit controls the transmission positioning assembly to tilt the transmission based on target and detected driving speeds.

A transmission comprising: a casing having: a first shaft having a truncated cone portion, a second shaft parallel to and spaced away from the truncated cone portion, a first gear mounted on the second shaft, the first gear being configured for rotation with the second shaft, the first gear being in connection with the first shaft, a linear actuator connected to the first gear, the linear actuator allowing to position the first gear at any one of a plurality of positions along the second shaft, the truncated cone portion having, at its beginning and its end, a respective one of a set of gears with a respective diameter and a respective number of teeth being proportionate to a diameter of the truncated cone portion, at least two counter-wound spiral gear tracks extending between the respective one of the set of gear s and another one of the set of gears.

There is provided an outboard motor. In a posture in use of the outboard motor, an oil filter is inclined such that a mounting portion side is located lower than a tip end side and the mounting portion side is located at an inner side and a tip end side is located at an outer side in the width direction of the outboard motor, a cover mating position between an upper engine cover and a lower engine cover is set to a position lower than an upper part of the tip end, and is higher than a lower part of the mounting portion, and an electric actuator is mounted on a lower part of an engine block and is mounted on a position closer to a center of the engine relative to a position of an outermost end of the oil filter in a width direction of the engine.