A light distribution switching device of a head lamp may include: a housing installed at the front of a light source of the head lamp; a shield part rotatably installed in the housing, and adjusting movement of light irradiated from the light source depending on a rotational position; a rotating gear mounted on the shield part and rotated with the shield part; a driving part rotating a driving gear engaged with the rotating gear; and an elastic return part installed on the shield part, and moving the shield part to the original position when the driving part is stopped.

Some embodiments are directed to a crossbar structure for use with a vehicle having a front bumper assembly, the crossbar structure being configured to extend across an opening in the front bumper assembly. The crossbar structure can include a hollow bar defining a front face and a rear face, the hollow bar being configured to extend across the opening. The crossbar structure can also include ribs extending between opposing interior surfaces of the hollow bar, the ribs being formed in a zig-zag pattern along a direction of elongation of the hollow bar and exposed from the rear face thereof.

A removable panel system for easily and efficiently varying the configuration of a cabin on a vehicle. The removable panel system generally includes a vehicle having a cab defined by a frame. Different panels may be selectively and removably connected to the frame to form various different cab configurations to suit the different needs of different jobs or operators. A roof panel may be removably connected to the frame to form a roof of the cab. A rear window extension may extend from the roof panel to form the rear window of the cab. A door receiver panel and/or door panel may be removably connected to the frame to form one or more doors of the cab. A windshield panel may be removably connected to the frame to form a windshield for the cab. All panels are adapted to be easily and efficiently interchanged without undue effort from the operator.

A tubular vibration-damping device including: a vibration-damping device main unit wherein a main rubber elastic body is externally fixed to an inner shaft member; an outer tube member mounted on an outer peripheral face of the main unit; a pair of stopper protrusions protruding to opposite sides of a first axis-perpendicular direction at the inner shaft member; a cushion rubber layer fixed to the stopper protrusions; a stopper concavity provided in an inner peripheral face of the outer tube member to receive the stopper protrusions being inserted, with a wall opposed to the stopper protrusions in an axial direction, the first axis-perpendicular direction, and a second axis-perpendicular direction orthogonal thereto; and stoppers for all the directions constituted by contact of the wall and the stopper protrusions to limit relative displacement between the inner shaft member and the outer tube member.

The present disclosure relates to active vibration control of a hybrid electric vehicle. One form provides a method that may include setting up a period of fast Fourier transform (FFT) and performing FFT of an engine speed or a motor speed corresponding to the period of the FFT from a reference angle signal; setting up a reference spectrum; extracting vibration components to be removed based on information of the reference spectrum; selecting and adding a removal object frequency from the vibration of each frequency and performing inverse FFT; determining a basic amplitude ratio according to the engine speed and the engine load; determining an adjustable rate which decreases an anti-phase torque as a change amount of the engine speed is decreased; and performing active vibration control of each frequency based on the information of the basic amplitude ratio, the adjustable rate, and the engine torque.

The present disclosure relates to an apparatus and a method for active vibration control of a hybrid electric vehicle. Forms of the present disclosure may provide a method for active vibration control of a hybrid electric vehicle that may include detecting an engine speed or a motor speed; selecting a reference angle signal based on position information of a motor or an engine; setting up a period of fast Fourier transform (FFT) and performing FFT of the engine speed or the motor speed corresponding to the period of the FFT from the reference angle signal; setting up a reference spectrum according to an engine speed and an engine load; extracting a vibration components to be removed based on information of the reference spectrum; summing vibration components to be removed according to the frequencies and performing inverse FFT; determining an amplitude ratio according to the engine speed and the engine load; and performing active vibration control of each frequency based on the information of the amplitude ratio and the engine torque.

A control system and method for a vehicle having a powertrain comprising a torque generating system and an automatic transmission each utilize a pedal position sensor configured to measure a position of an accelerator pedal of the vehicle and a controller configured to, based on the accelerator pedal position, detect a pedal tip-in or tip-out event and, in response to detecting the pedal tip-in or tip-out event: (i) determine a desired output torque for the torque generating system corresponding to the pedal tip-in or tip-out event and (ii) command the torque generating system to gradually transition, over a period, from its current output torque to the desired output torque to mitigate clunk caused by abrupt contact between gear teeth of the torque generating system shaft and the automatic transmission shaft.

An active damping system for a driveline includes a prop shaft configured to transmit engine power from an engine to a load, a sealed damper housing, and an active damping fluid contained within the sealed damper housing. A viscosity of the active damping fluid is changeable based on a torsional vibration of the prop shaft. The active damping system further includes a piston fixed to a side of the prop shaft and in communication with the active damping fluid. The piston is configured to rotate about an axis of the prop shaft. The system further includes a viscosity changing unit in communication with the active damping fluid, and a controller operatively connected to the viscosity changing unit. The controller is configured to cause the viscosity changing unit to change a viscosity of the active damping fluid. The viscosity of the active damping fluid changes the torsional vibration.

An engine cover readily movable between a closed, engine-concealing position and an open, engine-accessing position is disclosed. The cover includes a front and a back. The back of the cover is movably attached to the engine. The front of the cover includes a latch handle assembly that releasably attaches the cover to the engine. In its closed position, the engine cover not only conceals at least a portion of the engine thereby improving the aesthetic appeal of the engine compartment, but also helps to reduce engine noise, thus reducing overall vehicle NVH. The cover back may be attached anywhere on the upper area of the engine. The latch assembly includes a releasable latch handle that is pivotably attached to the engine cover. The releasable latch handle has a latch handle hook. An engine latch hook is provided on the engine to which the latch handle hook can be selectively attached.

An accessory support structure for a vehicle engine includes a pair of accessory-side supports provided on the engine accessory, and a pair of engine-side supports provided on the engine body. The engine-side supports each have a shaft hole into which a bolt is inserted, a slot closer to the engine body than the shaft hole is, and extending substantially horizontally, and an intermediate portion interposed between the shaft hole and the slot to restrict movement of the bolt. The engine-side supports each remove a restriction imposed by the intermediate portion and guide the bolt from the shaft hole to the slot if an external force acting on the alternator toward the engine body exceeds a predetermined threshold.