An object of the present invention is to provide a vehicle parking lock system that realizes a parking lock with a positive user perception, and enables energy and cost reductions without complex control and with a simple configuration. The object is achieved by a selectable clutch configured to be switchable between four operating modes and provided to one of an input shaft, an output shaft, and an intermediate shaft of a transmission. The operating mode of the selectable clutch is controlled based on detection signals of a plurality of sensors to prevent an unintended movement of the vehicle when the vehicle is stationary.

A vehicle park lock control method is presented with range positions including a P-range position and an N-range position in each of which a driving force is prevented from being transmitted to a driving wheel of a vehicle. A park lock mechanism is activated when in the P-range position. An operator is allowed to select whether or not to cause the park lock mechanism to be activated in response to key-off operation when in the N-range position. In response to continuous shifting of a range selector to one or more specific ones of the range positions, the park lock mechanism is prevented from being activated in response to key-off operation when in the N-range position.

A shift-by-wire control device includes a first detector, a second detector, an auto parking control unit, and a malfunction determining unit. The first and second detectors respectively detect first and second vehicle states attributed to behaviors of a driver. The auto parking control unit executes an auto parking control irrespective of a state of the shift range selected by the shift lever, on conditions that detection results derived from the first and second detectors satisfy respective predetermined conditions. The malfunction determining unit determines that the first detector is malfunctioning, on a condition that the first detector fails to detect a change in the first vehicle state. The auto parking control unit refrains from executing the auto parking control, on a condition that the first detector is determined by the malfunction determining unit as malfunctioning.

A method is disclosed for controlling a park mode in a motor vehicle that includes a powertrain with a powerplant. The method includes identifying whether the vehicle is stopped. The method also includes identifying whether the powerplant is operating or is turned off. The method additionally includes identifying whether an operator of the vehicle is present inside or has vacated the vehicle. The method also includes commanding automatic selection of the park mode if the powerplant is turned off. Furthermore, the method includes commanding automatic selection of the park mode if the operator has vacated the vehicle, whether the powerplant is turned on and operating, or is turned off. The powertrain may include an automatic transmission operatively connected to the powerplant, and the park mode can be affected inside the transmission. A system for controlling such a powertrain via a controller programmed to execute the method is also disclosed.

A method is disclosed for controlling a park mode in a motor vehicle that includes a powertrain with a powerplant. The method includes identifying whether the vehicle is stopped. The method also includes identifying whether the powerplant is operating or is turned off. The method additionally includes identifying whether an operator of the vehicle is present inside or has vacated the vehicle. The method also includes commanding automatic selection of the park mode if the powerplant is turned off. Furthermore, the method includes commanding automatic selection of the park mode if the operator has vacated the vehicle, whether the powerplant is turned on and operating, or is turned off. The powertrain may include an automatic transmission operatively connected to the powerplant, and the park mode can be affected inside the transmission. A system for controlling such a powertrain via a controller programmed to execute the method is also disclosed.

A locking arrangement has an electromagnet having an armature and an armature rod, a component which is rotatable about an axis in a first direction of rotation and in an opposite second direction of rotation and has circumferential engagements, a latching means with a restoring surface, which is connected to the armature rod and is adjustable between a latching position and a release position, a spring element which pretensions the latching means into the latching position and allows the latching means to be restored into the release position. The rotatable component can act on the restoring surface during rotation in the second direction of rotation to bring the latching means into the release position counter to the spring force of the spring element.

A continuously variable transmission includes, in a case: a drive pulley and a driven pulley each including a fixed-side pulley half and a movable-side pulley half configured to move axially relative to the fixed-side pulley half; a belt including a plurality of elements and a plurality of rings wound around the drive pulley and the driven pulley; a parking gear provided to the fixed-side pulley half of the driven pulley; a parking pawl configured to be fitted to the parking gear; a parking rod configured to swing the parking pawl; and a guide member configured to guide the parking rod, the continuously variable transmission transmitting a driving force a wheel while changing a transmission ratio by changing groove widths of the drive pulley and the driven pulley, wherein the case includes an auxiliary rib having a gap from the drive pulley equal to or smaller than a predetermined width.

An agricultural vehicle has wheel groups, an engine group, a continuously variable transmission group connecting the engine group to the wheel groups and having a hydraulic device, user management elements for driving the agricultural vehicle and setting motion modes thereof, and vehicle management elements for detecting operating conditions of the agricultural vehicle by detecting speed of the agricultural vehicle, engine revolutions, gear ratio and hydraulic pressure value of the continuously variable transmission group. A management and command system, operatively connected to the user management elements, the vehicle management elements, the engine group and the continuously variable transmission group, commands the continuously variable transmission group in at least one driving operating configuration, in which a hydraulic action of the hydraulic device is commanded according to predefined steps, and at least one auxiliary operating configuration in which the hydraulic action of the hydraulic device is commanded according to a continuous course over time.