Abstract: The invention relates to a fluid dynamic bearing system, comprising a bearing bush and a shaft rotatably supported in the bearing bush, wherein an annular pressure plate is arranged at the shaft and wherein a bearing gap is formed which is filled with a bearing fluid, and wherein at least one fluid dynamic axial bearing is formed between an end face of the pressure plate and an end face of a cover plate, wherein the fluid dynamic axial bearing has groove structures provided on the pressure plate or the cover plate wherein, in the connection or junction region between the shaft and the pressure plate, at least one axially extending recess or hole is present, wherein the opening of the recess or hole of the pressure plate and the groove structure of the axial bearing do not overlap in the radial direction.

Abstract: A steering device includes: a steering shaft; a transmitting mechanism configured to transmit the rotation of the steering shaft to a steered wheel; a power cylinder; a rotary valve configured to selectively supply a hydraulic fluid to the pair of the fluid chambers in accordance with the rotation of the steering shaft; and an electric motor configured to provide a rotation force through a speed reduction device to the steering shaft, the steering shaft including a first shaft connected to the steering wheel, and a second shaft connected to the first shaft, and configured to output the rotation force inputted from the first shaft, to the transmitting mechanism side, and the electric motor being connected through the speed reduction device to the second shaft.

Abstract: A rover includes a suspension configured to traverse uneven and unpredictable terrain, such as for example on an astronomical body. Each wheel is independently suspended off of the rover chassis with a linkage assembly comprising a pair of canted links which are able to continuously rotate relative to each other without collision or interference. The links allow the rover to independently adjust the height of each wheel relative to the chassis to drive over difficult terrain, and further allow the linkage assembly at each wheel to rotate 360° to effectively step or walk over particularly difficult terrain.

Abstract: A tractive element for a power machine can include a frame, an endless track, a drive sprocket, and a first set of split rollers. The first set of rollers can include a first roller rotatably coupled to the first plate with a first axis of rotation and a second roller rotatably coupled to the second plate with a second axis of rotation. The first axis of rotation and the second axis of rotation can be spaced apart from one another with a first roller offset distance, along a front-to-back direction of the tractive element, that can provide improved ride quality.

Abstract: The invention discloses a bicycle drive system (10) and a kit. The drive system comprises a drive unit (15) comprising a housing, a motor unit (20) having a stator (21), a rotor (22) and an output shaft and accommodated in the housing, and a first stage deceleration unit (30) having an input part connected to the output shaft of the motor unit and an output part; a mounting unit (50) configured to secure and hold the drive unit on a bicycle body (70); and a second stage deceleration unit (40) arranged external to the drive unit and detachably mounted on the first stage deceleration unit for connection to a pedal assembly (80). The drive unit, the mounting unit and the second stage deceleration unit are each provided as a modular part for assembling to the bicycle.

Abstract: A steering assembly for a steer-by-wire vehicle comprises a rotatably mounted steering column configured for attachment of a steering member at one end, the steering column being rotatable about its longitudinal axis. The steering assembly further comprises a damper having a housing defining a volume for receipt of damping fluid; a rotor within the housing, the rotor being coupled with the steering column and rotatable therewith; a stator mounted within the housing, the stator being moveable within the housing within a defined range of movement; and a biasing arrangement acting on the stator. Each of the stator and rotor comprises a shear surface, the shear surfaces of the stator and the rotor being positioned adjacent one another to generate a resistance to rotation of the rotor when the housing contains damping fluid.

Abstract: A mount apparatus for mounting a hitch-mountable device on a front end of a vehicle includes a base plate with a front surface and a back surface each extending between a top edge and a bottom edge of the base plate and between a first lateral edge and a second lateral edge of the base plate. A hook is coupled to the top edge of the base plate. The hook extending rearwardly and downwardly from the top edge and is configured for engaging a top of the vehicle grill guard to attach the base plate to the vehicle grill guard. A receiver hitch tube is coupled to and extending forwardly from the front surface of the base plate.

Abstract: A displacement unit includes a pin, a sleeve, a plurality of rolling elements, and a rolling element cage. The pin includes a plurality of external raceways. The sleeve includes a plurality of internal raceways. The sleeve is configured to receive at least a portion of the pin. The rolling element cage includes a plurality of openings configured to each accommodate a rolling element of the plurality of rolling elements. The rolling element cage is configured to be received around the pin and disposed radially between the pin and the sleeve. The plurality of rolling elements are configured to be received at least partially within (i) the plurality of external raceways of the pin and (ii) the plurality of internal raceways of the sleeve.

Abstract: Connecting straps for use for example in sports activities and methods of attaching the connecting straps. In one example, a connecting Y-strap for connecting two motorcycles together includes a body portion including a webbing sleeve and a band of elastic material disposed within the webbing sleeve, the band of elastic material being secured to the webbing material at each of a first end and a second end of the body portion, and first and second peg strap portions extending in a Y configuration from the first end of the body portion. Each of the first and second peg strap portions may have a peg loop formed at respective distal ends of the first and second peg strap portions. Examples of the connecting Y-strap may further include a strap length extending from the second end of the body portion, the strap length having an end loop at its distal end.

Abstract: A drive assembly of a vehicle operable with muscular power and/or motor power. The drive assembly including a drive unit, a frame interface, wherein the drive unit is arranged at least partially between a first wall and a second wall of the frame interface, a first bracket holding the drive unit on the first wall, and a second bracket holding the drive unit on the second wall. The first bracket comprises a first damping sleeve inserted into a first opening of the drive unit, the second bracket comprises a second damping sleeve inserted into a second opening of the drive unit, wherein each damping sleeve is screwed to the corresponding wall by means of a screw. Each damping sleeve comprises a sleeve, and a damping element which at least partially surrounds the sleeve and is formed from a vibration-damping material.

Abstract: A bearing assembly, preferably a wheel bearing assembly, includes at least one first ring and at least second ring, at least one of the first and second rings being rotatable and a bearing interior being defined between the first and second rings. The first ring(s) are designed to be attached with press fit to a component formed of a first material with a first coefficient of thermal expansion, the first ring (s) being formed of a second material with a second coefficient of thermal expansion different than, preferably lower than, the first coefficient of thermal expansion. At least one seal unit is provided to seal an axially outer side of the bearing assembly and includes a carrier element formed of a third material with a third coefficient of thermal expansion, the third coefficient of thermal expansion is at least as high as the first coefficient of thermal expansion.

Abstract: The disclosure relates to a method for actuating an electric drive of a trailer vehicle with a towing vehicle, including the steps: determining a current slip of at least one driven wheel of a towing vehicle pulling the trailer vehicle, determining an expected slip for the driven wheel of the towing vehicle, determining an acceleration demand depending on the determined current slip and the determined expected slip and actuating the electric drive depending on the acceleration demand. The disclosure also relates to a control unit for executing the method, a towing vehicle, a trailer vehicle and a vehicle combination.

Abstract: This invention relates to polygonal frame structures made from anisotropic materials, and methods for their construction. The polygonal frame structures include at least one frame member that is constructed as a torsion box. The torsion box is constructed with layers of anisotropic materials, resulting in a lightweight, torsionally stiff polygonal frame. Natural and/or man-made anisotropic materials may be used. Wood may be used as a natural anisotropic material. The invention is applicable to bicycles and other vehicles, as well as other products, where frame structures having light weight and torsional stiffness are advantageous.

Abstract: Disclosed is an unmanned vehicle suitable for mountains and hills and an attitude adjustment method, relating to the technical field of intelligent agricultural equipment in mountainous and hilly regions. The unmanned vehicle includes a frame and side arms arranged on both sides of the frame. The lower end of each side arm is provided with a traveling device, and each side arm is provided with an attitude adjustment device. The attitude adjustment devices are respectively connected to both sides of the frame, and the attitude adjustment devices are configured to adjust an attitude of the frame. The frame is provided with a control structure and a triaxial angle sensor, both of which are electrically connected to the control structure, and the triaxial angle sensor is configured to detect an angle of inclination of the frame. The unmanned vehicle can achieve the slope adaptation in the mountainous and hilly areas.

Abstract: A mobility scooter tow arrangement generally includes a horizontal member, a locking arrangement, and a vertical member. The locking arrangement detachably connects a first end portion of the horizontal member to the rear of a mobility scooter. The vertical member is attached to a second end portion of the horizontal member and positioned to project upwardly and transverse to the horizontal member. The vertical member is designed to be positioned to project into and through an opening in the bottom of a cage basket of a retail shopping cart to permit a user to tow the retail shopping cart from the front with a mobility scooter.

Abstract: A vehicle step device includes: a step portion that is attached to a side of a vehicle and is deployed from a retracted position to a getting-on/off position when an occupant gets on and off the vehicle; and a drive unit configured to drive the step portion between the retracted position and the getting-on/off position. The drive unit deploys the step portion to a traveling position located outward of the retracted position in a vehicle width direction when a predetermined condition is satisfied in a vehicle traveling state.

Abstract: A smart safe console system is provided herein. The smart safe console system includes a smart safe console assembly for mounting in a vehicle, having a safe body suitable for securing an electronic device, a button configured for controlling input and output to and from the electronic device when a vehicle hosting the smart safe console system is in use, and a wireless charging apparatus. Such smart safe console system is useful for improving the safety of a user when traveling in a vehicle with an electronic device.

Abstract: A guide device is equipped with a rail having a first surface in contact with a mounting surface, a second surface opposite the first surface, a through hole penetrating between the first surface and the second surface, and a recessed portion that is an opening on a first surface side of the through hole and is formed to be recessed from the first surface toward the second surface, wherein the recessed portion includes a third surface that is a surface orthogonal to the first surface and orthogonal to a width direction of the rail; the recessed portion receives an eccentric part that rotates eccentrically with respect to a reference axis orthogonal to the mounting surface to apply a force to the third surface in the width direction of the rail; and the through hole has a diameter shorter than a length of the recessed portion in the width direction.

Abstract: A vehicle including a mat, an air flow unit and a processor is disclosed. The mat may include a top wall, a bottom wall and plurality of through-holes disposed in the top wall. The air flow unit may be configured to blow pressurized air in a mat interior portion. The processor may detect a trigger event, and cause the air flow unit to blow the pressurized air in the mat interior portion responsive to detecting the trigger event. The ambient air in proximity to the top wall may be pulled towards the mat interior portion via the plurality of through-holes when the air flow unit blows the pressurized air in the mat interior portion.

Abstract: A modular assembly for a fuel-cell vehicle is configured to connect to a bracket arranged along a longitudinal frame of the vehicle. The modular frame can include one or more components for powering the vehicle, including one or more of a fuel cell, a battery, a battery cooling system, and hydrogen storage tanks. The modular assembly can communicate with the fuel-cell vehicle through standard integration components regardless of the particular components in the modular assembly. The modular assembly can be readily removed from the fuel-cell vehicle and replaced with a different modular assembly containing different components.