Central locking apparatus for motor vehicles

The invention relates to a vehicle having the features of the preamble of Patent Claim first

In several states, although it is forbidden to refuel the vehicle during operation of the power plant, for example, an internal combustion engine. Nevertheless, this is often done out of ignorance of the legal situation. Due to the simultaneous operation of all Vees by the controller in the same sense, ie in the unlocking or locking in the sense it is commonly not possible to allow the refueling of the vehicle only if it is compatible with the statutory provisions. The envisaged at Central devices possibility only VEE of a vehicle door, to control independently of the Vees of the other doors and flaps usually the driver's vehicle door, also offers no protection from fueling the vehicle when it is not allowed, because the decoupling of VEE of a door is performed independently of the operation of the vehicle.

On the other hand it can also happen that the vehicle is put into operation after fueling, although the cap is not closed. The consequence of this may be, for example, damage to the tank system and / or the vehicle when driving away with still connected to the vehicle tank device.

The invention is based is to provide a central locking device of the type mentioned, in which the filling and operation of the vehicle is independently possible the task.

The invention achieves this object by the characterizing features of claim 1.

On the one hand unauthorized refueling the vehicle is prevented. By decoupling the VEE of the flap of the Vees of the remaining doors and flaps, it is possible to make the driver first refueling and a possible violation of the law deliberately. It is possible, for example, always locked to hold the VEE of the flap and to make the unlocking of a separate command, for example by means of a key switch dependent.

In order to reliably exclude a still possible unauthorized refueling the vehicle, the release of the VEE of the fuel filler flap can be coupled to the operation of the vehicle. It can be unlocked, for example, the VEE the tank flap only when the vehicle is turned off by interrupting the main circuit. This can be done for example by monitoring the position of the ignition key. this is in the ignition, the VEE of the fuel filler flap remain locked.

A so that any associated loss of comfort can be avoided when the latch is coupled to the operation of the power plant. If the operation of the power plant, for example, the internal combustion engine is interrupted, for example by interrupting the ignition circuit, the VEE can be accommodated by the controller automatically to the unlocked position. It is then possible to refuel the vehicle when the PTO unit. For this purpose, it is not necessary to remove the key from the ignition lock. Such a measure does not represent any loss of comfort for the vehicle user. On the other hand, is ensured by the reference to the operation of the power plant, that the vehicle is refueled only when the drive unit is switched off. This can also be a fire hazard, as it exists in refueling the vehicle with running drive unit, are safely avoided.

On the other hand, the relationship between the operation of the internal combustion engine and the opening or closing state of the fuel cap and fuel cap will be extended in the manner and care is taken that the vehicle can not be put into use if not properly sealed tank cap and fuel cap ,

In order for a driving away after completion of refueling at the fuel tank cap is open or improperly attached tank cover is also prevented as to traverse at even plugged into the tank nozzle pump nozzle. This means that the risk of accidents for the order legislation is not only supported, but significantly reduced in the area of ​​gas stations. It is no longer possible to lose the filler cap when he was screwed improperly again for example after refueling. Also, pollution from fuel loss from the open tank is then excluded.

The information about the improperly closed tank cap or fuel tank cap can be supplied in various ways. So it is possible to detect, for example by means of a proximity switch or a working optical-based sensors the condition or location of the fuel cap or the fuel filler cap.

In contrast, results in a significant simplification of the design effort, when a contact switch in the tank cap or the fuel tank cap provides a signal to a control unit of the internal combustion engine. This signal can, for example, long rest, as the fuel cap is properly closed or when the fuel cap is just opened and the cap is removed.

It is also possible in principle to remove the signal, as known per se in the context of a central locking device. About this facility, the locking and unlocking is controlled, for example, the fuel cap. The pending in this connection signal can be used in the present invention can, optionally to prevent the re-commissioning of the engine, if the fuel cap or the fuel cap sitting improperly.