Central locking system and securing device and method for controlling same

Method for electrically controlling a central locking system and a securing device for motor vehicles which have at least one lock cylinder with at least two associated control switches, wherein for the electrical control of the unlocking or locking of the central locking system and the disabling or enabling of the securing device, the lock cylinder is pivotable by means of a key out of a neutral position in an unlocking direction or oppositely in a locking direction and at least beyond a regular locking position by further pivoting in the locking direction into a securing position for enabling the securing device, said securing device providing for additional mechanical blocking of locked closures by being enabled and disabled by means of signals generated by the two control switches, the lock cylinder also being pivotable in the unlocking direction beyond a regular unlocking position by further pivoting in the unlocking direction into a desecuring position, the method comprising:

• controlling the central locking system in the unlocking and opposite locking directions by respectively actuating one or the other of the associated control switches,
• successively actuating the two control switches during the pivoting of the lock cylinder into the securing position and during the pivoting of the lock cylinder into the desecuring position in a sequence dependent on the pivoting direction and the simultaneous switching of the two control switches into a joint switching state immediately following the respective actuation of the control switches in these positions;
• evaluating the differing switching sequences in which, during the pivoting of the lock cylinder into the securing position or the desecuring position, the two control switches are actuated,
• enabling the securing device when first the control switch used for the locking control and then the control switch used for the unlocking control are actuated and both also remain actuated at the same time;
• disabling the securing device when first the control switched used for the unlocking control and then the control switch used for the locking control are actuated and both also remain actuated at the same time, with first the securing device being disconnected and then the central locking system being unlocked.

A central locking system and securing device for motor vehicles, comprising:

• at least one locking station with a lock cylinder for mechanically unlocking and locking a closure as a result of a key rotation starting from a neutral key withdrawal position and rotating in an unlocking or opposite locking direction, said lock cylinder being pivotable in the locking direction by means of the key at least into a securing position obtainable beyond a regular locking position in the locking direction;
• first and second electrical control switches assigned to said locking station, the first control switch being switchable at least during the key rotation in the unlocking direction and the second control switch being switchable at least during key rotation in the locking direction by means of the pivoted lock cylinder;
• a central locking system having actuating elements for the unlocking or locking of further closures, wherein the first control switch controls the central locking system in the unlocking direction and the second control switch controls the central locking system in the unlocking direction;
• a central control circuit electrically controllable from the lock cylinder indirectly by at least one of the first and second control switches, said central control circuit controlling the central locking system, the securing device being enabled and disabled by means of the central control circuit after being activated by switching signals from the first and second control switches, said securing device comprising actuating elements for additional mechanical blocking of the centrally locked closures;
• actuating means for switching the first control switch during the pivoting of the lock cylinder into the securing position such that at least in the securing position, the first and second control switches are jointly actuated;
• switching elements for combining signals from the first and second control switches;
• and
• means for evaluating the joint switching state occurring as a result of the jointly applied signals of the control switches for activating the securing device in the securing direction.

Central locking system and securing device for motor vehicles, comprising:

• at least one locking station with a lock cylinder for the mechanical unlocking and locking of a door closure as a result of a key rotation starting from a neutral key withdrawal position and rotating in an unlocking or opposite locking directions, said lock cylinder being pivotable by means of the key into a securing position obtainable by rotation beyond a regular locking position in the locking direction and into a desecuring position obtainable by rotation beyond a regular unlocking position in the unlocking direction;
• first and second electrical control switches assigned to said locking station, the first control switch being switchable at least during the key rotation in the unlocking direction and the second being switchable at least during the key rotation in the opposite locking direction by means of the pivoted lock cylinder;
• a central control circuit electrically controllable from the lock cylinder indirectly by at least one of the first and second control switches, said central control circuit controlling the central locking system, the securing device being enabled and disabled by means of the central control circuit after being activated by switching signals from the first and second control switches, said securing device comprising actuating elements for additional mechanical blocking of the centrally locked closures;
• a central locking system having actuating elements for the unlocking or locking of further closures, wherein the first control switch controls the central locking system in the unlocking direction and the second control switch controls the central locking system in the locking direction;
• first actuating means for switching the first control switch during the pivoting of the lock cylinder into the securing position such that in the securing position, the first and second control switches are jointly actuated;
• switching elements for combining signals from the first and second control switches;
• second actuating means for switching the second control switch during the pivoting of the lock cylinder into the desecuring position such that in the desecuring position, the first and second control switches are jointly actuated,
• a sequence circuit for evaluating the respective switching sequence of the first and second control switches;
• and
• means for causing evaluation of the joint switching state to occur as a result of the simultaneously applied signals of the control switches and for connecting or disconnecting the securing device as a function of the respective switching sequence of the first and second control switches.