Abstract: A central locking system for motor vehicles has all of the opening and closing functions occurring in normal operation also in the event of failure of individual components. If necessary, a vehicle outfitted with this system can also be opened and locked when the door lock motors (50) are out of operation. When the vehicle is locked, the outer door handles (13) can be pulled without meeting resistance and without effect. To this end, a control cam (47) lifts an actuating arm (32) so that a door handle lever (35) can be actuated without the actuating arm (32) being grasped.

Abstract: A central interlocking system for a motor vehicle performs in a normal operation all opening and closing functions. A vehicle provided with the system can be opened and locked without the operation of door closing motors. The outer and inner handles can be selectively blocked individually and jointly by a motor operated control member having two parallel control discs which cooperate with two locking levers. The control member can be released for opening of the door also in a purely mechanical way by turning a door lock keybolt with a key. The locking system has a simple construction and locking motors operating without loads.

Abstract: A device is suggested which serves to lock and unlock closed doors of a motor vehicle. The device comprises a lock which is assigned to every door, can be actuated with a key and whose locking element is swivelably supported at the door and whose retainers, which cooperate with the latter, are arranged near the door opening so as to be fixed with respect to the body of the vehicle. The locking element is a structural component part which is spring-loaded relative to the unlocking position and engages behind the pin-like retainers with a hook-shaped projection in its locking position. The locking element has two catches which together enclose an angle with reference to the swivel axis of the locking element, which catches cooperate with counter-catches of a swivelable latch element which are spring-loaded relative to the catch position.

Abstract: A power-assisted hand brake for motor vehicles, which can be operated in an automatic and power-assisted mode with the aid of an electric motor. If the power assisted brake fails, a conventional parking brake is operated mechanically to apply emergency brakes. The handbrake includes a rotatable spindle with a threaded nut thereon which operates the brake by use of the motor. A carrier plate and pivot plates function to disconnect the nut so that a hand-operated lever can be used to manually operate the brake.

Abstract: A system for transferring a control position of a set-point value transducer between the gas pedal and the throttle valve. The system includes an electromechanical device which can adjust a throttle valve out of its position of reponse in opposite directions. This is attained by an intermediate element, which is capable of coming to rest on a repose-position stop. The system is particularly well suited to motor vehicles having traction and/or cruise control.

Abstract: An apparatus which serves to actuate the throttle valve of an internal combustion engine of a motor vehicle. The actuating device includes a reversible electric drive motor, the output shaft of which is operatively connected to the throttle valve, which is pivotable via a throttle valve shaft. The set-point pivoted position of the throttle valve can be predetermined by means of a gas pedal. A simple, economical design of such an actuating device is attained by coupling the throttle valve to a stop such that they rotate together; associated with the stop is a counterpart stop that is spring-loaded in the closing direction of the throttle valve by a restoring spring. The counterpart stop is coupled with the gas pedal in such a way that it is moved by the drive lever counter to the force of the restoring spring.

Abstract: A device that serves to actuate a throttle valve. The actuating device includes an electric drive motor and a step-down gear driven by the motor; an output shaft of the step-down gear is operatively connected to a throttle valve shaft which controls the throttle valve. The actuating device is compact in structure as well as versatile in use, even with various sizes of throttle valve, the step-down gear is embodied as a planetary gear having its output shaft provided with a gear wheel, which is operatively connected via a toothed belt with a second gear wheel, disposed on the throttle valve shaft. The motor is controlled by a control means assembled in the same housing as the motor and the throttle valve.