A shifting operation detecting apparatus includes a gearbox and a shift change apparatus. The shift change apparatus includes a shifting operation unit, a shifting operation receiving section, a swing lever and a connecting member. A shift operation detector is disposed between the swing lever in an outer shaft section of the shifting operation receiving section and a gearbox case to directly detect a pivoted state of the shifting operation receiving section, and the connecting member is connected to the swing lever from the gearbox case side.

A shifting apparatus for a manual transmission able to shift two shift stages, of which selection positions are different but shift positions are the same, using a single fork and a single sleeve. Compared to the related art in which a fork and a synchronization sleeve are provided to each of two independent shift stages, the full length of the transmission is reduced, thereby reducing the weight and manufacturing costs.

A universal operating device for an overdrive gearbox and a use method thereof, including a gearbox gear selecting and shifting shaft, and a gear selecting and shifting rocker arm and a gear selecting and shifting block which are arranged on the gearbox gear selecting and shifting shaft, where one end of the gearbox gear selecting and shifting shaft is separately in transmission fit with a gear selecting flexible shaft and a gear shifting flexible shaft through the gear selecting and shifting rocker arm, and the other end of the gearbox gear selecting and shifting shaft is in transmission fit with a gear shifting guide block through the gear selecting and shifting block; the gear selecting flexible shaft is in transmission fit with the gear selecting and shifting rocker arm through an overdrive gear switching device; and the overdrive gear switching device includes a gear shifting fork, the upper end of the gear shifting fork is in transmission fit with the upper end of the gear selecting and shifting rocker arm, and the lower end of the gear shifting fork is in transmission fit with the lower end of the gear selecting and shifting rocker arm. In use, the transmission direction of the gear selecting and shifting shaft is changed by utilizing the translation of the rocker arm without changing an inner structure of the gearbox. Therefore, the design is simple in structure and low in manufacture cost, and can realize gear order reverse shifting of the gearbox without changing the inner structure of the gearbox.

A ring gear for a planetary gearset and a transmission having the same. The planetary gearset receives an input via a sun shaft to supply an output via a carrier in response to arresting of rotation of the ring gear around an axis. The ring gear includes a plurality of tooth surfaces and opposing tooth surfaces that are distributed around the axis. A pawl, while engaged with the tooth surfaces, is permitted to ratchet on the ring gear in a first angular direction and arrests rotation of the ring gear in a second angular direction opposite to the first angular direction. An opposing pawl, while engaged with the opposing tooth surfaces, is permitted to ratchet on the ring gear in the second angular direction and arrests rotation of the ring gear in the first angular direction. A gear ratio is selected by selectively actuating the pawls and the opposing pawls.

A compound transmission shift mechanism is disclosed. The shift mechanism includes a plurality of gears configured on at least one transmission shaft with at least one synchronizer configured to engage at least two of the plurality of gears. The shift mechanism includes a control system configured to engage and position the synchronizer into alignment with the at least two of the plurality of gears. Additionally, the shift mechanism includes at least one damping assembly configured on the control system and operatively connected to the synchronizer.

The invention relates to a magnet retention member (1) which can be fitted to a wall (28) of a locking sleeve (27) for a gear mechanism, a locking sleeve (27) and a position sensor arrangement (37) for a gear mechanism. In order to be able to produce the position sensor arrangement (37) with the magnet retention member (1) and/or the locking sleeve (27) in the most cost-effective manner possible, there is provision according to the invention for the magnet retention member (1) to have a retention slot (4) for receiving a wall (28) of the locking sleeve (27), which is flanked by retention arms (2, 3) of the magnet retention member (1), the wall (28) having a securing portion (32) for the magnet retention member (1) and the position sensor (37) having a magnet retention member (1) according to the invention and/or a locking sleeve (27) according to the invention.

Disclosed herein is a shift device of a dual clutch transmission capable of simplifying a configuration of a shift control mechanism of the transmission and contributing to saving costs by sharing odd-stage and even-stage select mechanisms and individually including an odd-stage shift mechanism and an even-stage shift mechanism. The shift device of a dual clutch transmission includes: a select guide block 20 moving in a straight direction by a driving of the select motor 10; a pair of control shafts 50 and 60 each shaft-moving in a select direction by the straight movement of the select guide block; and a pair of odd-stage and even-stage shift motors 30 and 40 each providing a shaft rotating force to the pair of control shafts 50 and 60 in a shift direction.

Described herein is a gearbox for a motor vehicle including a plurality of forward gear ratios and a reverse gear ratio, the gearbox further including: a control device (configured for controlling the selection and the engagement of said forward gear ratios and of said reverse gear ratio; and a plurality of engagement devices that can be controlled by means of said control device for engaging the forward gear ratios or reverse gear ratio (RM) of the gearbox that are operatively associated to said devices.

The gearbox includes a locking device, which is electrically controlled and configured for preventing actuation of the engagement device associated to a predetermined forward gear ratio, said locking device being configured for being actuated above a threshold speed of the motor vehicle on which said gearbox is installed.

A shift track selection rod and a shifting element are provided which can be connected to one another without additional fastening elements. A system consists of the shift track selection rod and the shifting element. A transmission actuator includes the system. A transmission includes the system or the transmission actuator.

Described herein is a gearbox for a motor vehicle including a plurality of forward gear ratios and a reverse gear ratio, the gearbox further including: a control device (configured for controlling the selection and the engagement of said forward gear ratios and of said reverse gear ratio; and a plurality of engagement devices that can be controlled by means of said control device for engaging the forward gear ratios or reverse gear ratio (RM) of the gearbox that are operatively associated to said devices. The gearbox includes a locking device, which is electrically controlled and configured for preventing actuation of the engagement device associated to a predetermined forward gear ratio, said locking device being configured for being actuated above a threshold speed of the motor vehicle on which said gearbox is installed.