Abstract: A vehicle locking system has a locking unit for a movable vehicle part (particularly a trunk lid) which can be moved between an opened and a locked position and which, in the opened position, provides access to an adjoining vehicle interior area and blocks such access in the locked position. When an authentication element is used which can be carried along on the user side, the locking unit, is reversible between an unlocked state, in which it releases the opening of the movable vehicle part, and a locked state in which it prevents the opening of the movable vehicle part. Authentication element detection devices determine whether an authentication element is situated in the vehicle interior area, and, if so, control the locking unit into its unlocked condition and/or generate a corresponding indicating signal.

Abstract: An electronic safety system, particularly a vehicle locking system, has several safety units arranged on an object to be secured, at least one authorizing authentication element, and safety control devices with several object-side authentication element detection sensors. Signal sending devices emit a query data signal in a pertaining acquisition range, which can be received by an authentication element situated in the corresponding acquisition range. The authentication element has devices for returning an authentication response signal.

Abstract: An ignition lock system for a motor vehicle includes an electronic ignition key and an electronic ignition lock having a key receptacle. The electronic ignition key can be inserted into the key receptacle to exchange coded operating signals, the key receptacle, together with the inserted electronic ignition key, being movable out of an initial position into at least one operating position. A mechanical blocking device is provided in the key receptacle, which blocks the electronic ignition key against withdrawal from the key receptacle in the operating position. The mechanical blocking device cooperates with the electronic ignition key in such a way that the electronic ignition key and/or the key receptacle is irreversibly damaged when blocking actions of the mechanical blocking device are forcibly overcome.

Abstract: An electronic ignition starter switch and steering wheel locking apparatus for a motor vehicle which includes a steering wheel locking unit for locking and unlocking a vehicle steering element, an ignition starter switch unit for switching an engine ignition on and off and for starting the vehicle engine, and a coupling device. The apparatus ensures that the steering wheel locking unit is in its unlocked state during starting of the engine. The coupling device contain state interrogation and starting blocking circuits, which interrogate the locking state of the steering wheel locking unit and allow the engine to be started only when the steering wheel locking unit is in its unlocked state.

Abstract: A vehicle security system has an access monitoring device which includes an access control part and/or an electronic immobilizing device which comprises an immobilizer control part, located on the vehicle. An authentication device can be carried by the user for actuation, subject to authentication, of the respective control part on the vehicle via an associated wireless actuation communication channel. Both an actuation communication channel which needs a key, and a wireless actuation communication channel which needs no key (and communicates based on proximity, without manual actuation) are provided for actuating a control part on the vehicle, optionally via one or the other actuation communication channel. The actuation communication channel which requires a key is given priority over the corresponding actuation communication channel which needs no key.

Abstract: An immobilizing device for a motor vehicle includes an immobilizer control unit on the vehicle, one or more authentication elements which can be carried by the user, and an actuation communication channel for immobilizer actuation communications which require authentication, between the authentication element and the immobilizer control unit. The immobilizer control unit allows driving operation and/or engine starting only if the driving authorization check is positive. According to the invention, an immobilizer operating element arranged on the vehicle can be operated without any manipulation of an authentication element, for user-requested initiation of the immobilizer actuation communication processes which require authentication. Alternatively or additionally, the brake pedal can be used as an operating element for activating engine starting, once it has been enabled by the immobilizer control unit.

Abstract: A light switching device for a motor vehicle, in which a switching component, capable of more than one switching position, for switching on and off a plurality of lamps of the operating illumination of a motor vehicle, a indicator for illuminating functions and an electrical plug-in connection device are integrated, are insertable in one piece into the dashboard or the instrument panel of the motor vehicle. The device integrates the operating illumination control, the circuit fuses appertaining to the operating illumination and the circuit monitoring, such that the fuses are easily accessible at the level of the actuating handle of the at least one switching component for the illumination control. The device has a patchboard for exchangeable fuses, and at least one integrated semiconductor circuit, monitoring current paths for current flows, for realizing at least one checking and/or warning function.