A gear locking mechanism includes a gear (or a sprocket wheel) having a series of substantially identical teeth and a locking tongue having a tooth (or teeth) configured in a locked position to engage the gear or sprocket wheel between any two of the series of substantially identical teeth of the gear or sprocket wheel. An anchoring structure restricts a degree of rotation of at least a portion of the locking tongue in the locked position. In the unlocked position, the restriction on the freedom of rotation is released. The locking tongue divided by a fixed pivot includes a movable distal portion of a see-saw having the tooth with the anchoring structure exerting a force against the proximal portion. Alternatively, the locking tongue rotates on a pin on a distal end and the anchoring structure urges a proximal portion toward the gear to lock.

A commercial vehicle with at least one driven axle, at least one service brake, at least one propulsion engine, and wheels characterized in that the parking brake function of the vehicle is solved by a bistable locking means acting on both wheels. At least one multi-speed gearbox is provided to concurrently activate a first gear stage and a second gear stage having different ratios.

A parking lock has a parking lock housing (20), a locking pawl (12) which has a ratchet (16) that can be locked in a parking lock wheel (56) and a pawl profile (44) arranged on the rear side of the ratchet (16), an actuating unit (24) which acts upon the pawl profile (44) when the parking lock (10) is engaged and thereby rotates the locking pawl (12) about a rotational axis (14) relative to the parking lock housing (20), and a supporting element (18), on which the actuating unit (24) is supported in the engaged state (P) and in the disengaged state (nP) of the parking lock (10) at different positions. The supporting element (18) is connected to the parking lock housing (20) so as to have play.

A parking brake includes an inhibitor device (31), which can be associated with a drive shaft (3) for rotating therewith, the inhibitor device (31) being actuated by centrifugal force. The parking brake further includes a locking member (33) adapted to engage the inhibitor device (31) when actuated. The inhibitor device (31) is configured to prevent the engagement of the locking member with the inhibitor device when the inhibitor device rotates at a speed greater than a minimum speed, so as to prevent the application of the parking brake.

The invention relates to parking brake device (10) for a vehicle transmission (GT) comprising a driveshaft (AW) and a first actuator (F1), via which the driveshaft (AW) can be rotated; a pawl (2), which can be lockingly engaged in the vehicle transmission (GT); a rotary mechanism (1), which is connected to the driveshaft (AW) and comprises an engaging mechanism, an insert spring (16) and a permanent magnet (PM), wherein the pawl (2) and the rotary mechanism (1) can be moved with the permanent magnet (PM) between a locking position (P) and a neutral position (nP) for the vehicle transmission (GT), wherein the rotary mechanism (1) can be pretensioned via the insert spring (16) and the neutral position (nP) can be adopted; wherein the parking brake device (10) also comprises: a second actuator (F2), via which the engaging mechanism can be triggered when the insert spring (16) is pretensioned and,

An electro-mechanical park lock actuator includes a shaft and a circuit board. The shaft is arranged for connecting to a transmission park pawl. The circuit board includes a first non-contact inductive position sensor integrated circuit, a first trace electrically connected to the first non-contact inductive position sensor integrated circuit for determining an angular position of the shaft, and an electrical connector for connecting the circuit board to an external master controller. In some example embodiments, the electro-mechanical park lock actuator includes an electric motor drivingly connected to the shaft, and a transmission arranged in a torque path between the electric motor and the shaft.

A diff-lock operation shaft 50 is supported by a case 11 in such a manner as to be rotatable around an axis P1 of the diff-lock operation shaft 50 and operates a diff-lock section 48 to a lock position A2 by being rotated, and a first coil spring 51 is wound around the outer surface of the diff-lock operation shaft 50 concentrically with the diff-lock operation shaft 50, and is linked at one end portion 51b to the diff-lock operation shaft 50 and at another end portion 51a to linking members 55 and 56. The first coil spring 51 is twisted around the axis P1 via the linking members 55 and 56 by the manual operation tool 58 being operated, and the diff-lock operation shaft 50 is rotated via the first coil spring 51.

An electronic parking pawl actuator which uses a smaller motor and higher gear ratio has the ability to configure a rooster comb to engage with various park detents, and reduces the mechanical and software design complexity. Furthermore, the electronic park actuator limits the amount of back drivable range (unable to perform an external park to neutral shift) for theft deterrence, and also allows operation (speed performance) and a lower motor peak current. The electronic parking pawl actuator includes an electric motor, a drive gear, the drive gear operable for being driven by the electric motor, and a drive mechanism, the drive mechanism is operable for being driven by the drive gear. The drive mechanism is engaged with an output shaft of a gear selector of a transmission, and the drive mechanism is rotatable relative to the drive gear, allowing the output shaft to be located in a desired position.

A park lock assembly for a vehicle transmission includes a toothed park lock gear and a moveable locking pawl that is moveable between an engaged state, in which the locking pawl is in locking engagement with the park lock gear, and a disengaged state, in which the park lock gear is freely rotatable relative to the locking pawl. The park lock assembly also includes an inductive angular position sensor located on an axial side of the park lock gear and configured for detecting angular position of the park lock gear.

An electric drive axle in a vehicle is provided. The electric drive axle includes, in one example, an electric motor-generator, a gearbox, and a differential. The gearbox comprises a planetary gear set that includes a sun gear configured to rotate on a sun gear shaft directly coupled to a rotor of the electric motor-generator and an intermediate shaft that includes an idler gear rotationally coupled to a pinion gear that is rotationally coupled to the carrier.