A vehicle driver interface includes a mode selector, such as a shift lever, and two shift paddles. The shift paddles perform different functions according to which driving mode is selected via the mode selector. In a manual mode, driver activation of one of the shift paddles results in an upshifts and driver activation of the other shift paddle results in a downshift. In a snowplow mode, driver activation of one of the shift paddles shifts the transmission to reverse while driver activation of the other shift paddle shifts the transmission to forward.

Aspects of the present invention relate to a method of using a transmission with multiple clutches in order to provide improved methods of traction control on a hill ascent. Embodiments provide for the use of power-shift, automatic or dual clutch gearboxes.

A vehicle includes a power source, a transmission coupled to the power source, and a control unit. The transmission includes a torque converter and a hydraulic switching mechanism. A processor of the control unit is configured to execute in accordance with an instruction stored in a storage medium: obtaining RPM of a turbine shaft of the torque converter based on a unit time when the transmission is switched from neutral to forward driving or to reverse driving; determining whether the RPM is decreased by an amount greater than a predetermined amount of decrease based on the unit time; and reducing, if the RPM is decreased by an amount greater than the predetermined amount of decrease based on the unit time, pressure of oil to be supplied to an oil chamber of the hydraulic switching mechanism when the transmission switches to the same mode as the previously switched mode next time.

A method is provided for controlling a gear shift from a forward gear to a reverse gear in a transmission arrangement, the method including the steps of: positioning a first locking mechanism and a first connecting mechanism at least in a partially engaged state for reducing a rotational speed of a planet carrier of a second planetary gear set; and positioning a second locking mechanism in an engaged state when a rotational speed of the planet carrier of the second planetary gear set is below a predetermined threshold limit.

A Gear change and gear change biasing mechanism for use in an automatic swimming pool cleaner in slightly off-set paths to cover a mostly square area, a fourth larger turn 46 will steer cleaner to a different area of pool indicated by arrow 47 where the pattern will repeat itself.

Aspects of the present invention relate to a method of using a transmission with multiple clutches in order to provide improved methods of traction control on a hill ascent. Embodiments provide for the use of power-shift, automatic or dual clutch gearboxes.

A transmission assembly for a self-propelled machine includes a transmission housing fitted with an input shaft, an output shaft, a mechanism for reversing the rotational drive direction of the output shaft, and a brake mechanism, each mechanism including a control, the direction reversing and brake controls carried by the housing being mounted respectively movable, one between at least three positions: a neutral, a forward and a reverse position, the other between at least a first braking position and a non-braking position, the brake control being couplable to a brake control member that can be actuated by the operator, in order to shift the brake control from the non-braking to the first braking position. The brake control has a separate second braking position, and the transmission assembly includes return elements capable, in the neutral position of the direction reversing control, of returning the brake control to the second braking position.

An enhanced control system for an electronic automatic transmission enables the transmission to operate in a full neutral idle, a reverse lockout, and an inching mode. These functions improve the mileage and durability of the operation of the transmission. They also enable the inching mode for use especially in industrial applications.

A method of operating a dual-clutch transmission of a vehicle having partial transmissions with respective transmission input shafts. Two friction clutches can couple a corresponding input shaft of the partial transmissions to a drive shaft. Both partial transmissions drive a common output shaft. In a process for starting the motor vehicle, a gear in each of the two partial transmissions is engaged and, if the starting speed of the vehicle in a primary direction is lower than a limit value, the gears in the two partial transmissions are kept engaged. If, however, the starting speed is higher than the limit value, the gear for the travel in an opposite direction in the partial transmission, not involved in the starting process, is disengaged and a follow-up gear, for the gear in the partial transmission involved in the starting process, is engaged.

A method for performing a shuttle shift with a transmission of a work vehicle is disclosed, wherein the transmission includes an input shaft, a counter shaft and a plurality of driven shafts extending generally parallel to the input and counter shafts. The method may include disengaging a clutch associated with a first directional gear of a directional shaft of the plurality of driven shafts. The first directional gear may be configured to rotate the directional shaft in a first direction. Additionally, the method may include engaging clutches associated with at least two gears of at least one secondary driven shaft of the plurality of driven shafts to reduce a rotational speed of the directional shaft and, after the rotational speed of the directional shaft is reduced, engaging a clutch associated with a second directional gear of the directional shaft such that the directional shaft rotates in a second direction.