A door control device stops a door such that the door does not come into contact with an obstacle existing in a rotation range of the door. The door control device includes: a distance calculation unit configured to calculate a distance from the door to the obstacle; a speed calculation unit configured to calculate an actual speed of the door; a braking force setting unit configured to set a braking condition indicating transition of a braking force applied to the door; a speed estimation unit configured to estimate transition of an estimated speed of the door from start of braking until the door stops; and a braking force correction unit configured, during braking, to correct a braking force such that the braking force is increased, or reduced, when a time gradient of the actual speed is gentler than, or steeper than, that of the estimated speed.

A hydraulic lock for a hydraulic system includes a flow control valve and a second check valve. The flow control valve having a first inlet, a first outlet, a first check valve and a flow restrictor, each of the first check valve and the flow restrictor being communicably coupled to the first inlet and the first outlet and being arranged in parallel between the first inlet and the first outlet. The second check valve having a second inlet and a second outlet, the second inlet being communicably coupled to the first outlet, the second check valve further having a ball seating surface having an aperture there through, a ball, and a resilient member biasing the ball towards the ball seating surface to seal the aperture, the aperture being communicably coupled to the second inlet and the second outlet.

A door check for vehicle doors, e.g. car doors having a door strap for being mounted to the chassis and a retainer for being mounted to the door movably and supporting the door strap relative to the retainer and provides a particular precise control over the door movement if the retainer has a cylinder supporting a piston which is spring loaded against the door strap and if an actuator is configured to augment the pressure in the cylinder upon demand to thereby augment the friction between the piston and the door strap.

An electronic release system configured to unlock a hold open rod mechanism or latch mechanism includes an actuator interface configured with an input device and an actuator associated with the hold open rod mechanism or the latch mechanism. The input device configured to be actuated by personnel to initiate operation of an unlocking mechanism associated with the hold open rod mechanism or the latch mechanism. The electronic release system also includes a wiring assembly configured to connect the actuator interface to the actuator. The actuator interface configured to determine actuation of the input device and signal the actuator over the wiring assembly. The actuator being configured to operate the unlocking mechanism associated with the hold open rod mechanism or the latch mechanism.

Disclosed is an arresting system for arresting a swivel motion between two swivel-mounted elements, including a brake rod connected to the first element, an arresting device on the second element with a housing, through which the brake rod extends, in which case the arresting device has a drive and at least one brake-shoe element that can be moved via the drive relative to the brake rod. The brake-shoe element is inside the housing and engageable with the brake rod upon exertion of a braking force. Included are a sensor, and an electronic device controlling braking force exerted by the brake-shoe element on the brake rod depending on the signals from the sensor. The drive is an electric motor driving in rotation an actuation element that, to produce the relative motion between the brake-shoe element and the brake rod, has an actuation cam acting on the brake-shoe element.

A door device for a vehicle includes a latch drive device configured to unlatch a swing door by driving a latch mechanism, a door hold-open device configured to hold the swing door at an opened angle by applying a braking force to the swing door, a door open switch issuing an operation request of the latch drive device to open the swing door; a door stop switch issuing an operation request of the door hold-open device, and a grip portion including the door open switch and the door stop switch to issue the operation requests of the door open switch and the door stop switch in a state where an occupant of the vehicle holds the grip portion.

A hydraulic lock for a hydraulic system includes a flow control valve and a second check valve. The flow control valve having a first inlet, a first outlet, a first check valve and a flow restrictor, each of the first check valve and the flow restrictor being communicably coupled to the first inlet and the first outlet and being arranged in parallel between the first inlet and the first outlet. The second check valve having a second inlet and a second outlet, the second inlet being communicably coupled to the first outlet, the second check valve further having a ball seating surface having an aperture there through, a ball, and a resilient member biasing the ball towards the ball seating surface to seal the aperture, the aperture being communicably coupled to the second inlet and the second outlet.

A check link assembly includes a link movable between a first position and a second position. Furthermore, a vehicle includes the check link assembly. The check link assembly also includes a braking apparatus coupled to the link. The braking apparatus includes a brake member movable between an applied position and a released position. The brake member is configured to apply a force to the link when the brake member is in the applied position. The brake member is configured to release the link when the brake member is in the released position.

A door component has a controllable damper device that contains a magnetorheological fluid as a working fluid. Two connection units of the damper device can be moved relative to each other. One of the two connection units can be connected to a support structure, and the other connection unit can be connected to a pivotal door device in order to damp a movement of the door device between a closed position and an open position in a controlled manner. The magnetorheological damper device has a piston unit and a cylinder unit which surrounds the piston unit. The piston unit divides a cylinder volume into two chambers. The piston unit has a first piston rod, which extends through the first chamber, and a second piston rod, which extends through the second chamber.

A closure system for a handleless door of a motor vehicle equipped with a power release latch assembly, a power opening presenter assembly, and an illumination assembly configured to illuminate a grasp area (virtual handle) of the handleless door upon the handleless door being moved to a partially-open position via the power opening presenter assembly.