Abstract: Provided is a vehicle lamp including an optical unit including an optical element and a solenoid that drives the optical element; and a driving circuit configured to receive a voltage from a DC power supply and apply a driving voltage to the solenoid. The driving circuit includes a signal generating circuit that generates a notification signal indicating whether or not the solenoid is open-circuited. The signal generating circuit generates a first signal as the notification signal when the solenoid is normal. The notification signal is set as a second signal that is different from the first signal when open-circuit of the solenoid is detected.

Abstract: A vehicle lamp system includes a first lamp unit configured to irradiate light having a first correlated color temperature, a second lamp unit configured to irradiate light having a second correlated color temperature lower than the first correlated color temperature of the first lamp unit and configured to form a combined light distribution pattern, together with the light irradiated from the first lamp unit, the combined light distribution pattern being formed by overlapping the light from the first lamp unit and the light from the second lamp unit, and a controller configured to change light flux of at least one of the first lamp unit and the second lamp unit in accordance with a vehicle speed.

Abstract: An auxiliary apparatus may be used with a vehicle. The auxiliary apparatus may include an auxiliary implement, an auxiliary lighting system and auxiliary wiring. When the auxiliary wiring is properly connected: (1) an operator adjustable auxiliary implement control is operable to operate the auxiliary implement; (2) an operator adjustable auxiliary light control is operable to operate an auxiliary headlight; and, (3) an operator adjustable vehicle light control is operable to operate an auxiliary supplemental light.

Abstract: An alighting notification device configured to identify when an occupant will get out of a vehicle, only when necessary is provided. The alighting notification device includes: an alighting determination unit that determines whether or not an occupant will get out of the vehicle; a surrounding area determination unit that determines whether or not a person or another vehicle in a surrounding area around the vehicle is approaching the vehicle; and a notification unit that notifies of alighting based on a result of determination by the alighting determination unit and a result of determination by the surrounding area determination unit. For example, when it has been determined that an occupant will get out of the vehicle, if a person or another vehicle is approaching the vehicle, the notification unit notifies the external target of alighting.

Abstract: There is provided a method for activating warning lights in a vehicle, the method comprising: determining a yaw rate of the vehicle; determining a sideslip angle of the vehicle; comparing the yaw rate to a predetermined yaw rate threshold value; comparing the sideslip angle to a predetermined sideslip angle threshold value; and f the yaw rate exceeds the predetermined yaw rate value; if the sideslip angle exceeds the predetermined sideslip angle value; and if it is determined that the vehicle reaches a standstill within a predetermined time after the yaw rate and sideslip values have been exceeded, activating warning lights of the vehicle. There is also provided a system configured to perform the above described method.

Abstract: A pickup truck is provided that includes a tonneau cover or bed cap that includes a lighting system. The light system is selectively attached to the tonneau cover or bed cap. The light system includes a longitudinally extending rod having an illuminating portion extending along at least a portion of the longitudinal extent of the rod. The longitudinally extending rod includes first and second end portions and an on/off switch located at least adjacent to the first end portion of the longitudinally extending rod. At least one clip is attached to the tonneau cover or bed cap that selectively holds the longitudinally extending rod. The longitudinally extending rod is pivotable within the at least one clip such that the illuminating portion is selectively directable toward different directions.

Abstract: A display device includes: a transparent plate-shaped substrate capable of blocking light transmission in its partial region; a planar light-emitting body disposed on a back surface side of the substrate; a light-shielding plate capable of blocking light transmission in its partial region and disposed between the substrate and the light-emitting body; and a design part displayed on the substrate, having a predetermined shape formed from a character or graphic. A first light-shielding region formed from a recess with a same shape as an outline of the design part, and a second light-shielding region having a shape enlarged outward from an outline of the recess by a first dimension are respectively provided on the back surface side of the substrate and a front or back surface side of the plate. First and second light-shielding layers blocking light from the light-emitting body are formed in the first and second light-shielding regions, respectively.

Abstract: A system and method for pedestrian alert that derives a pedestrian path representing a projected path for a pedestrian, derives a vehicle path representing a projected path for a motor vehicle, determines an intersection of the pedestrian path and the vehicle path, determines alert characteristics responsive to the determined intersection, and generates an alert that is emitted from the vehicle responsive to the determined alert characteristics. The system and method for pedestrian alert may be built, installed or implemented in a motor vehicles that is operated in environments where the motor vehicle may be in close proximity to pedestrians. The system and method for pedestrian alert mitigates the likelihood of a collision between the motor vehicle and a pedestrian by emitting an alert that may draw the attention of the pedestrian to the presence of the motor vehicle.

Abstract: A hybrid vehicle includes an engine, a fuel tank, a motor, a battery, a charger, and a notification mechanism. The battery is configured to supply electric power to the motor. The charger is configured to carry out external charging that charges the battery by use of electric power from an external power source. The notification mechanism is configured to notify, to an outside of the vehicle, information on a use index indicative of a degree of use of external charging in a predetermined time period.

Abstract: An object detector is provided including a light emitter including at least a light source having a plurality of light emitting areas disposed along a first direction to emit light, an optical scanner configured to scan the light emitted from the light emitter along a second direction that is different from the first direction, a light receiver configured to receive the light that is scanned by the optical scanner and then is reflected at an object, and a controller configured to divide a detection field into a plurality of subareas in a third direction that is orthogonal to the second direction, where a number of partitions of the detection field is variable.

Abstract: A system and method for correcting the calibration of a plurality of cameras on a mobile platform such as in a surround-view camera system on a vehicle based on changes in vehicle dynamics. The method includes reading measurement values from one or more sensors on the vehicle that identify a change in vehicle dynamics and defining the plurality of cameras and a vehicle body as a single reference coordinate system. The method also includes identifying the measured values as a rotation matrix and a translation vector in the coordinate system, and integrating the rotation matrix and the translation vector into a relationship between a vehicle coordinate system and a camera coordinate system to provide the calibration correction of the cameras.

Abstract: In a vehicle door mirror device, a through hole of a case is penetrated by a support shaft so as to rotatably support the case on the support shaft. Lower ribs are formed in a protruding state at a peripheral face of the through hole, and protrusion leading end faces of the lower ribs are capable of contacting the support shaft. A gap dimension between the peripheral face of the through hole and the support shaft can accordingly be made small, thereby enabling rattling of the case with respect to the support shaft to be suppressed. Moreover, the contact surface area between the peripheral face of the through hole and the support shaft can be made small, thereby enabling an increase in sliding resistance between the peripheral face of the through hole and the support shaft to be suppressed.

Abstract: A hydraulic oil cooler is provided with steps for allowing a person to access a rear portion of a tank truck. The hydraulic oil cooler includes a housing having a first side, a second side opposite the first side, and a front side extending between the first side and the second side. The housing is configured for attachment to a frame rail of the tank truck. The hydraulic oil cooler further includes at least a bottom step and an intermediate step disposed on the housing with the bottom step and the intermediate step extending outwardly from the front side of the housing. The width of the bottom step and the intermediate step is between about 254 millimeters (10 inches) and about 609.6 millimeters (24 inches). The steps are made of a slip-resistant and self-cleaning material and have a predetermined surface pattern for increasing the amount of gripping and traction of the steps.

Abstract: A vehicle service access assembly having features for mounting to tow hooks of a pickup truck or utility vehicle to access the vehicle's engine compartment is disclosed. The assembly includes two tow hook inserts, secured to laterally adjustable components, configured to register against the tow hooks and vehicle frame members to releasably suspend the assembly for use. In other aspects of the disclosure, safety rails may be included to provide an added measure of safety. The assembly may also include a retractable, suspended step to facilitate vertical access to the assembly. In a further aspect, a retractable tool tray provides a secure and convenient means to assemble tools for use in the service of the vehicle.

Abstract: An apparatus comprising a structure having a cavity with an opening configured to receive a piece of baggage and a flange configured to retain the piece of baggage when the structure is in an open state, wherein the structure is configured to move between the open state and a closed state about an axis of rotation for the structure, and wherein the opening has a horizontal position when the structure is in the closed state and the opening has a vertical position when the structure is in the open state.

Abstract: This envelope is an automobile accessory adapted to fit between the center console of an automobile and either the driver's seat or the passenger's seat, to catch items that fall in the space between the seat and the console. The sides of this envelope are made of flexible polymeric material that allows it to compress to fit in this space. The resilient force generated as the sides of the envelope seek to return to their uncompressed shape holds the envelope fairly securely in the space. Yet a user is able to slide the envelope into and out of the space easily. The envelope can be used to store items as well as to catch dropped ones.

Abstract: A vehicle storage assembly is provided to store an item. The vehicle storage assembly includes: (1) a housing having a first floor and a first wall extending therefrom, the first floor and the first wall together defining a first cavity extending along a depth direction; (2) a first track supported on the housing and extending along a longitudinal direction; and (3) a first block supported on the first track and at least partially received within the first cavity, where the first block is to support the item at first and second item positions spaced apart along the depth direction when the first block is respectively at first and second block positions spaced apart along the longitudinal direction.

Abstract: A modular rack system, for adjustably attaching equipment to a vehicle, includes a base mountable on a side wall of the vehicle. The rack system has a first wall that is disposed on and upwardly emanating from the top surface of the base that defines a lower seat. One end of a vertical member resides in the lower seat and is secured thereto. The other end of the vertical member resides in an upper seat defining by a downwardly depending wall from a saddle and is secured thereto. The first and second walls laterally stabilize the vertical member relative to the base and saddle to permit the base to be mounted to a side wall of a vehicle and a top rail to be secured to the saddle without the use of gussets or cross-braces.

Abstract: To prevent a person from experiencing discomfort when touching portions of a headrest having built-in speakers; to enable the headrest to be formed compactly by arranging the speakers close to the body of the person; and to prevent any decrease in the acoustic pressure and/or acoustic quality of sound from the speakers. Provided are: a plurality of speakers 25a, 25b; fiber pads 15 provided to the front surfaces of the speakers 25a, 25b; a sound-insulating pad 16 provided between the fiber pads 15; and a surface skin 9 for covering the speakers 25a, 25b, the fiber pads 15, and the sound-insulating pad 16, the fiber pads 15 being formed from an elastic material that has a three-dimensional-mesh structure therein, and the sound-insulating pad 16 being formed from an elastic material for minimizing the transmission of sound.

Abstract: A fastener is provided for mounting a first structure having an insertion rib with a retention slot to a second structure having a mounting opening. The fastener includes a U-shaped body having a bight portion at an upper portion thereof with a pair of outer legs depending therefrom. Each of the pair of outer legs terminates at a distal free end to engage an edge of the mounting opening when the U-shaped body penetrates the mounting opening. A pair of inner legs extends from the distal free ends of the outer legs toward the bight portion. The pair of inner legs has an intermediate protrusion configured to engage the insertion rib and bear against a stop in the retention slot to retain the U-shaped body on the first structure.

Abstract: A remote function control system for a vehicle including a data communications bus extending throughout the vehicle and coupled to vehicle devices may include a wireless data bus device in the vehicle coupled to a wired vehicle electrical power system. The wireless data bus device may include a wired interface coupled to the data communications bus in the vehicle, and a first wireless device coupled to the wired interface. A remote function device coupled to the wired electrical system may include a second wireless device to wirelessly communicate within the vehicle with the first wireless device and a third wireless device to wirelessly communicate with a remote control device away from the vehicle. The remote function device may also include a controller coupled to the second and third wireless devices to permit communication between the remote control device and a vehicle device coupled to the data communications bus.

Abstract: A remote function control system is for a vehicle including a data communications bus extending throughout the vehicle and coupled to a plurality of vehicle devices, and a wired vehicle electrical power system. A wireless data bus device may be coupled to the power system including a wired interface coupled to the data bus in the vehicle, and a first wireless device coupled to the wired interface. A remote function device may include a housing removably coupled to the power system, a vehicle position determining device, a second wireless device to wirelessly communicate within the vehicle with the first wireless device, and a third wireless device to wirelessly communicate with a remote control device away from the vehicle. The remote function device may permit communication between the remote control device and a vehicle device(s) coupled to the data bus, and perform a tracking function(s) based upon vehicle position.

Abstract: An engine control module (ECM): based on an accelerator pedal position measured using an accelerator pedal position sensor, determines at least one of a predicted engine speed and a predicted torque output of an engine; and transmits the at least one of the predicted engine speed and the predicted engine to a network bus. An audio control module: is separate from the ECM; obtains the at least one of the predicted engine speed and the predicted torque output from the network bus; based on the at least one of the predicted engine speed and the predicted torque output, sets at least one of a frequency at which to output a predetermined engine sound and a magnitude for outputting the predetermined engine sound at the frequency; and applies power to at least one speaker of the vehicle to output the predetermined engine sound at the frequency and the magnitude.

Abstract: Provided is an electrical junction box configured promptly release the electrical junction box from a state where water has intruded therein, thereby preventing the occurrence of a vehicle fire due to submersion. An internal circuit includes a high-voltage circuit bus bar and a low-voltage circuit bus bar having a lower potential than the high-voltage circuit bus bar, and a lower case includes a bottom wall and a peripheral wall protruding from a peripheral edge portion of the bottom wall toward an upper case. A high-voltage circuit region where the high-voltage circuit bus bar is disposed, a low-voltage circuit region where the low-voltage circuit bus bar is disposed, and a dividing wall divides these regions are provided inside the peripheral wall, and a height dimension of the dividing wall from the bottom wall is configured to be greater than a height dimension of the peripheral wall from the bottom wall.

Abstract: Technology is provided for wheel guards that can help lift the wheel of a wheeled vehicle, such as a robot, up and over an obstacle. The wheel guard can include a guard member including a ramped surface extending between a first end portion and a second end portion, the second end portion coupleable to a suspension of a wheel of the vehicle. A pivot mechanism is attached to the first end portion that is coupleable to a chassis of the vehicle, whereby the guard member can pivot with respect to the chassis as the wheel moves up and down.

Abstract: A method for identifying a polarity of a freewheeling diode interconnected in parallel to an inductive actuator for a safety unit for a vehicle. The method includes applying a test current to a terminal of the freewheeling diode and carrying out a comparison between a voltage present at the terminal and a threshold voltage while the test current is being applied, a result of the comparison indicating the polarity of the freewheeling diode.

Abstract: An occupant protection control system that includes: a crash sensing component that senses an occurrence of a crash of a vehicle, including a crash type; a detecting component that detects a current seat state, of a seat whose state can be changed from a normal state; plural types of occupant protection devices that are disposed according to crash type and protect, according to crash type, an occupant seated in the seat; and a control component that, on the basis of a detection result of the detecting component and a sensing result of the crash sensing component, controls the plural types of occupant protection devices in such a way that, among the plural types of occupant protection devices, the control component operates occupant protection devices that are necessary to protect the occupant and prohibits operation of occupant protection devices that are not necessary to protect the occupant.

Abstract: An occupant restraint system 1 includes a seatbelt device 3 having a webbing 5 that is designed to extend obliquely across an occupant, seated on a seat, so as to pass through a shoulder part located on one side in a lateral direction and a part in front of a waist part located on the other side, and thereby to restrain an upper body of the occupant. The occupant restraint system 1 also includes an airbag device 4 having a bag body 10 that is installed on the webbing 5 in a folded state and designed to expand and deploy upon input of an impact load and thereby to restrain a periphery of a neck part of the occupant.

Abstract: A seat assembly for a motor vehicle includes: a supporting structure, designed to be mounted on the floor panel of the motor vehicle; a seat, which is mounted on the supporting structure and includes a sitting portion and a backrest portion; and an airbag unit, including at least one airbag, which is folded into a housing provided in the seat assembly and is inflatable into an expanded condition outside the housing, whereby the at least one airbag has a conformation such that, in the expanded condition, the at least one airbag identifies a protection wall that surrounds the backrest portion of the seat.

Abstract: Methods for making an airbag mounting bracket for use with an attachment component of an associated airbag cushion are provided. An opening in a mounting bracket precursor formed of a bracket precursor material is extruded. A rounded surface of the bracket precursor material adjacent the extruded opening is formed. The mounting bracket precursor with the rounded surface is subsequently finalized to form the airbag cushion mounting bracket, wherein the extruded opening provides an airbag attachment engagement opening for passage of the attachment component and the rounded surface provides a load bearing surface of increased area for the attachment component. Also provided are corresponding or associated airbag mounting brackets.

Abstract: A vehicle body 10 equipped with an airbag system has a side curtain airbag 20 provided on a roof side rail 12. The side curtain airbag 20 includes: a bag body 51 that is disposed along the roof side rail 12; a central protector 59 that holds the bag body 51; and an inflator 52 that is configured to feed gas to the bag body 51. The central protector 59 has a contact end part 65 that is opposed to a reinforcement member 48 with a gap L2 left therebetween. The contact end part 65 is moved toward the reinforcement member 48 by a deployment force of the bag body 51, and the contact end part 65 is thus supported by the reinforcement member 48.

Abstract: An airbag device configured such that, inflator gas is less likely to leak outside from an insertion hole formed on a cushion and into which the inflator is inserted during assembly of the airbag device. The airbag device 100 includes: a bag-shaped cushion 108 which deploys using gas supplied from inflator 110; an insertion hole 112 formed on the cushion and through which the inflator is inserted; and a covering part 120 provided on an inner side of the cushion and covers the insertion hole. The covering part includes: a first cloth piece 122 overlapping the insertion hole and on which a slit 126 that is elongated in one direction is formed; and a second cloth piece 124 positioned to overlap the first cloth piece and a slot 128 is formed having a longitudinal direction intersecting a longitudinal direction of the slit overlapping the insertion hole.

Abstract: A method for folding an airbag (10) provides that the airbag (10) is first folded in a zigzag manner, that a gas generator (14) and/or an airbag-retaining metal sheet is/are placed in the airbag (10), whereupon end portions of the airbag extend around the outer circumference of the gas generator (14) and/or of the airbag-retaining metal sheet toward each other in opposite directions up to a folding zone (26) from where the end portions are folded over outwards and are laid down in the opposite direction. Also disclosed is a corresponding airbag module.

Abstract: Systems for retraining an occupant within a vehicle seat as disclosed herein include a lap belt having connectable lap-belt segments along a seat bottom extending from respective connection points with the seat or the vehicle. A connection element extends upwardly along a seat back from an attachment point to a connecting member, and shoulder straps extend from the connecting member for placement over the occupant's shoulders when seated within the vehicle seat. The lap-belt segments may be connected directly or indirectly with the shoulder straps, and shoulder strap length may be adjusted via the lap-belt segments or an intermediate element used to connect the lap-belt segments with the shoulder straps. A vertical belt extends from the connecting member along the back portion of the vehicle seat to an attachment point within the vehicle.

Abstract: A webbing take-up device includes a spool capable of taking-up webbing worn by an occupant, a V-gear capable of rotating accompanying rotation of the spool, a lock pawl that is operated to restrict rotation of the spool in a pull-out direction, and a W-pawl provided at the V-gear, that is displaced and causes the lock pawl to operate when the V-gear is rotated in the pull-out direction at a specific speed or greater. The webbing take-up device also includes a restricting body that is moved to a permitting position permitting displacement of the W-pawl when the V-gear is rotated in the pull-out direction, and that is moved to a restricting position enabling the W-pawl to abut when the V-gear is rotated in a take-up direction, restricting displacement of the W-pawl due to the W-pawl abutting, a contact angle with the W-pawl being set with 90 degrees or greater.

Abstract: Systems and methods for selectively activating operation of one or more vehicle powertrain elements are presented. In one example, a propulsion source of a vehicle is activated in response to a driver moving a shift lever from a first location to a second location. Further, activation of propulsion source may be made contingent on whether or not the vehicle is coupled to an electrical grid.

Abstract: The present technology includes a washer system comprising a washer switch assembly and an electronic module. The washer switch includes a ground configured for electrical connection with a washer pump by way of a switch and a fuse contact configured to receive control signals from a power-mode relay. The electronic module includes a controller comprising a computer-readable storage device, and the controller is electrically isolated from the washer switch assembly and the washer pump in operation of the system.

Abstract: A composite pane is described. The composite pane has a first pane, at least one intermediate layer, a second pane, a transparent, electrically conductive first coating between the intermediate layer and the first pane and/or between the intermediate layer and the second pane, a first busbar and a second busbar, and a transparent, electrically conductive second coating.

Abstract: A support panel adjacent to the windshield opening has an upper surface and a lower surface with a first shaft opening. A wiper drive mechanism is supported to the vehicle body structure and extends along the lower surface of the support panel. The wiper drive mechanism includes a shaft housing and a wiper shaft pivotally supported within the shaft housing. A water diverting panel at least partially covers the wiper drive mechanism and is attached thereto and has a cylindrically shaped portion extending upward therefrom. The cylindrically shaped portion defines a second shaft opening with the shaft housing and wiper shaft extending upward through the second shaft opening and further extending upward through the first shaft opening. A filter member is mounted to the cylindrically shaped portion above the water diverting panel and below the support panel encircling the shaft housing.

Abstract: A wiper blade extends in a longitudinal direction and includes a blade rubber, a plate spring-like backing, and a rubber holder. The blade rubber wipes a wiped surface. The backing adds rigidity and elasticity to the blade rubber. The rubber holder holds an intermediate portion of the blade rubber in the longitudinal direction and an intermediate portion of the backing in the longitudinal direction. The rubber holder includes a backing accommodation slot that accommodates and holds the backing. The backing accommodation slot extends through the rubber holder in the longitudinal direction. The parting line is set in a middle section of the backing accommodation slot in the longitudinal direction.

Abstract: An apparatus and method for measuring coolant temperature to ensure the proper amount of coolant for refilling or servicing a coolant system, such as an automobile coolant system, are disclosed. In one embodiment, the apparatus includes a measurement display for viewing the temperature of air conditioning output inside a vehicle while the user is outside the vehicle refilling or servicing a coolant system. The measurement display is in communications with a temperature sensor measuring the air temperature at a vent inside the vehicle to allow a user to ensure the proper amount of coolant is refilled.

Abstract: The vehicle pedal device includes a pedal bracket fixed to a dash panel, a pedal, a lever bracket fixed to the dash panel, fixing means fixing the pedal bracket and the lever bracket with a predetermined holding force for fixed state, a rotating lever, a reinforcement for instrument panel, a lever rotator which is fixed to the reinforcement for instrument panel, and bracket deforming means fixed to the reinforcement for instrument panel. The bracket deforming means contacts with the pedal bracket to deform the pedal bracket downward when the pedal bracket moves rearward together with the dash panel. The rotating lever comprises a press portion which can press the fixing means or the pedal bracket downward with a force exceeding the holding force for fixed state when the rotating lever is rotated by the lever rotator.

Abstract: A vehicle brake control apparatus according to the invention stops an activation of a brake device when a person exists outside of a braking area. The apparatus determines whether or not the person exists outside of the braking area on the basis of a moving direction and a moving amount of at least one characteristic point included in a landscape image captured by a camera device when a person image included in the landscape image cannot be detected by a pattern matching technique.

Abstract: A method is described for ascertaining the offset value of a sensor signal in a vehicle after the end of a parking period, in which the vehicle was parked, including the steps ascertaining the offset value of the sensor signal prior to the start of the parking period, storing the ascertained offset value in a data memory, ascertaining the changed offset value of the sensor signal after the end of the parking period from the offset value ascertained prior to the start of the parking period and the sensor signal present after the end of the parking period.

Abstract: Provided is a body reservoir assembly whose height can be reduced. In the body reservoir assembly, the reservoir comprises: a recessed portion formed on a bottom surface of the reservoir; and a reservoir side connecting portion formed in the recessed portion and connected to a cylinder portion.

Abstract: Electronic brake system is disclosed.

Abstract: Methods and systems are provided for providing vacuum to a brake booster via an aspirator system. In one example, a system may include an aspirator system fluidly coupled with a brake booster with no intervening components located therebetween.

Abstract: Methods and systems are provided for providing vacuum to a brake booster via an aspirator system. In one example, a system may include an aspirator system fluidly coupled with a brake booster with no intervening components located therebetween.

Abstract: An electric brake system is disclosed. The electric brake system comprises a hydraulic pressure supply device configured to generate hydraulic pressure using a hydraulic piston which is activated by means of an electrical signal that is output corresponding to a displacement of a brake pedal, and including a cylinder block, first and second hydraulic pistons movably accommodated inside the cylinder block, and first and second pressure chambers comparted by the first and second hydraulic pistons, a first hydraulic circuit configured to connect a first hydraulic flow path communicating with the first pressure chamber to one or more wheel cylinders, a second hydraulic circuit configured to connect a second hydraulic flow path communicating with the second pressure chamber to one or more wheel cylinders, and a balance valve configured to open and close a balance flow path connecting the first hydraulic flow path to the second hydraulic flow path.

Abstract: A spring-type brake cylinder that includes a compression spring, a pressure chamber, a dividing wall disposed between the compression spring and the pressure chamber, a piston having an inner wall and a bottom, and a nut disposed inside the piston and configured to be held on a release bolt. A support structure is disposed inside the piston and configured to abut against the nut while the release bolt is screwed into the nut. The piston comprises a first retaining structure and a second retaining structure, the first retaining structure configured to hold the support structure in an assembly position and the second retaining structure configured to hold the support structure in a drive position. The support structure is moveable from the assembly position to the drive position by a movement of the nut relative to the piston.