Methods and systems are provided for an actuation system for a parking mechanism in a transmission system of a vehicle. In one example, a system may include an actuator coupled to a lever arm via one or more parallel axis gears, and a shaft connecting the lever arm to a pawl of the parking mechanism, the lever arm non-back drivable at each of a first state and a second state of the actuation system.

A stop module for non-jamming end-of-stroke stoppage of a rotary drive actuator includes timing gears to articulate a stopping pawl, and a low inertia, deformable stopping disk arranged to safely dissipate excess rotational kinetic energy of the rotary actuator. The stop module does not rely on friction to stop and dissipate the excess kinetic energy, but instead relies on predictable deformation of a metallic stopping disk which may be provided in a stopping cartridge of the stop module. Use of a deformable element to dissipate excess energy allows the disclosed stop module to be lighter and smaller than conventional end-of-stroke stopping mechanisms.

A stop module for non-jamming end-of-stroke stoppage of a rotary drive actuator includes timing gears to articulate a stopping pawl, and a low inertia, deformable stopping disk arranged to safely dissipate excess rotational kinetic energy of the rotary actuator. The stop module does not rely on friction to stop and dissipate the excess kinetic energy, but instead relies on predictable deformation of a metallic stopping disk which may be provided in a stopping cartridge of the stop module. Use of a deformable element to dissipate excess energy allows the disclosed stop module to be lighter and smaller than conventional end-of-stroke stopping mechanisms.

Methods and systems are provided for an actuation system for a parking mechanism in a transmission system of a vehicle. In one example, a system may include an actuator coupled to a lever arm via one or more parallel axis gears, and a shaft connecting the lever arm to a pawl of the parking mechanism, the lever arm non-back drivable at each of a first state and a second state of the actuation system.

A speed reducer including: a first gear; an eccentric shaft joined to the first gear, the eccentric shaft has first and second supporting portions offset in a rotation radial direction with respect to a first gear rotation shaft; a fixed gear at an eccentric shaft radial direction outer side, and whose rotation is restricted; a transmitting gear supported at the first supporting portion and meshes with the fixed gear, and the transmitting gear revolves around the first gear rotation shaft and rotates around its own axis; an outputting portion rotating due to the transmitting gear revolving and rotating around its own axis; and a locking gear supported at the second supporting portion and meshes with the fixed gear, and the locking gear revolves around the first gear rotation shaft and rotates around its own axis, and rotation of the outputting portion is restricted.

Embodiments of the present application provide an antenna adjustment apparatus. The antenna adjustment apparatus includes a first drive wheel, a first gear, a second drive wheel, a second gear, and multiple output gears. The first drive wheel is meshed with the first gear, the second drive wheel is meshed with the second gear, an axis of the second gear coincides with an axis of the first drive wheel, and the output gears are connected to the phase shifters. When the second drive wheel propels the second gear to rotate, the first gear revolves around the axis of the second gear, is selectively meshed with one of the output gears, and is driven by the first drive wheel to propel the output gear to rotate and drive the phase shifter connected to the output gear.

Provided is a support apparatus including a drive motor, a link mechanism that, by transmitting motive power output from the drive motor, is extendable and contractable in response to the motive power, and a pair of rotating bodies that act as a variable speed mechanism that outputs the motive power to the link mechanism by a reduction ratio according to an attitude of the link mechanism. At least part of the link mechanism forms a trapezoidal link mechanism.

Provided is a support apparatus including a drive motor, a link mechanism that, by transmitting motive power output from the drive motor, is extendable and contractable in response to the motive power, and a pair of rotating bodies that act as a variable speed mechanism that outputs the motive power to the link mechanism by a reduction ratio according to an attitude of the link mechanism. At least part of the link mechanism forms a trapezoidal link mechanism.

A controlling device may include an actuator for mechanically actuating a component. The actuator may be driven by an electric motor. The controlling device provides a return spring. In the case of a failure of the electric motor, the return spring brings about a shifting of the actuator into a starting position. The return spring may be mounted in the controlling device so that it prestresses the actuator into the starting position with a predetermined minimum restoring force.

A controlling device may include an actuator for mechanically actuating a component. The actuator may be driven by an electric motor. The controlling device provides a return spring. In the case of a failure of the electric motor, the return spring brings about a shifting of the actuator into a starting position. The return spring may be mounted in the controlling device so that it prestresses the actuator into the starting position with a predetermined minimum restoring force.