Zur Entriegelung insbesondere von Fahrzeugtüren im Falle eines Unfallgeschehens sind mehrere Verfahren und Anordnungen bekannt geworden, denen jedoch meist erhebliche Nachteile anhaften. Die wesentlichsten Nachteile sind vorzeitige Entriegelung noch während des Bewegungsablaufs, Versagen der Entriegelung wegen Bordnetzausfall und unbegründete Entriegelung durch Erschütterungen, die nicht durch Unfall verursacht sind.For unlocking vehicle doors in particularIn the event of an accident, there are several proceduresand orders have become known to thoseusually have considerable disadvantages. TheThe main disadvantages are premature unlockingstill during the course of movement, failure of theUnlocking due to electrical system failure and unfoundedUnlocked by shocks that are not byAccident.
Die Entriegelung muß für jede Tür einzeln und mit jeder Tür zugeordnetem System erfolgen, ohne daß der Ausfall des elektrischen Bordnetzes den Entriegelungsvorgang stören kann. Die Entriegelung darf nicht schon während des unfallbedingten Bewegungsablaufs erfolgen, sondern erst nach Eintritt der endgültigen Ruhelage.The release must be done individually and with each doorsystem assigned to each door withoutthe failure of the electrical system on board the Entlocking process can interfere. The releasemust not already be during the accident-related movementprocess, but only after thefinal rest position.
Die Erfindung benennt dazu folgende Bestandteile und Funktionen:To this end, the invention names the following componentsand functions:
Die mechanische Entriegelung muß mit Mitteln erfolgen, die zufolge ihrer Einfachheit das Minimum an Störanfälligkeit sowohl aus zeitbedingten Einflüssen, wie etwa Korrosion, wie aus unfallbedingten Gründen verwirklichen. Dazu ist vorgesehen, eine mechanische Feder derart zu spannen, daß die in ihr gespeicherte Leistung ausreicht, einen wie auch immer gearteten Riegel zu lösen, wenn die Arretierung der gespannten Feder elektrisch freigegeben wird. Die einfachste vorgesehen Bewirkung der Freigabe ist mittels einer Sollschmelzstelle vorgesehen. Die Feder wird in der gespannten Lage gehalten durch eine Schmelzstelle, die derart ausgelegt ist, daß der kurzzeitige aber starke Entladestrom eines elektrischen Speichers das Abschmelzen und damit einfachst die Freigabe bewirkt. Als elektrischer Speicher ist - je nach Aufwandsrahmen und angestrebter Lebensdauer - ein chemischer Kondensator, ein nichtchemischer Kondensator oder eine aufladbare Anordnung von Zellen bekannter Art vorgesehen. Wegen optimaler Konstanz ist ein MP Kondensator zu bevorzugen.The mechanical unlocking must be done by meanswhich due to their simplicity, the minimum of sturgeonvulnerability from both time-related influences,such as corrosion, such as for accident reasonsrealize. For this purpose, a mechanicalTension the spring so that the stored in itPerformance is sufficient, any typeRelease latch when locking the cockedSpring is released electrically. The easiestThe intended effect of the release is by means of aTarget melting point provided. The spring is inthe tense position held by a melting point,which is designed so that the short-termstrong discharge current of an electrical storagethe melting and thus simply the releasecauses. As electrical storage is - depending on Expense framework and desired lifespan - achemical condenser, a non-chemical condensersator or a rechargeable array of cellsknown type provided. Because of optimal constancyan MP capacitor is preferable.
Für die elektrische Freigabe der Feder ist auch die Anwendung einer durch den Entladestromstoß betätigende Sperrklinke vorgesehen. Dabei sind jedoch mehrere, der Sollschmelzstelle nicht anhaftende Fehlerquellen unvermeidbar, so zum Beispiel Klemmen, Korrosion, Verkleben, Verbiegen.For the electrical release of the spring is also theApplication of an actuating by the discharge current surgePawl provided. However, there are severaldefects not adhering to the target melting pointswell inevitable, for example clamps,Corrosion, sticking, bending.
Da die Entriegelung nicht vorzeitig erfolgen darf, ist eine elektrische Anordnung vorgesehen, die erst um einige Sekunden nach Ende des unfallbedingten Bewegungsablaufs das Entriegelungssignal liefert. Dazu ist eine sogenannte rücktriggerbare elektrische Anordnung vorgesehen, die bewirkt, daß beispielsweise mehrere innerhalb der vorgesehenen Verzögerungszeit aufeinander folgende Stöße jeweils den Neubeginn der Verzögerungszeit bewirken und damit die Abgabe des Entriegelungssignals solange verhindern, bis kein weiterer Stoß mehr erfolgt ist. Damit ist sichergestellt, daß nicht während des Unfallablaufs, mag er auch über längere Zeit erfolgen, entriegelt werden kann. Der elektrische Speicher liefert so lange den Betriebsstrom für diese elektrische Anordnung. Damit ist die Unabhängigkeit vom Bordnetzausfall gegeben.Since the release must not take place prematurely,an electrical arrangement is provided, the firstby a few seconds after the end of the accidentMovement sequence provides the unlock signal.This is a so-called retriggerable electrical arrangement provided that causesfor example several within the intendedDelay time of successive impacts eachcause the delay time to restart andthus the release of the unlock signal as longprevent until there is no further impactis. This ensures that not duringof the course of the accident, he likes it for a long timecan be unlocked. The electric oneStorage supplies the operating current forthis electrical arrangement. So that's itIndependence from electrical system failure.
Die Zusammenfassung der beschriebenen Bauteile auch mit je einem Sensor in eine geschlossene Baugruppe ist wegen der hohen Funktionssicherheit vorgesehen. Jede mit einer solchen kompakten Baugruppe zur Entriegelung gesicherte Tür funktioniert so unabhängig von möglicher Systemzerstörung an anderer Tür oder zentraler Stelle.The summary of the described components alsowith one sensor each in a closed assemblyis intended because of the high level of functional reliability.Each with such a compact assemblyUnlocking secured door works like thisregardless of possible system destruction on othersDoor or central location.
Die für die Erfindung benannten Bauteile sind im Stand der Technik so allgemein bekannt, daß eine detaillierte Darstellung für den einschlägig gebildeten Fachmann nicht erforderlich ist. Da auch bereits eine Vielzahl von sogenannten Crash-Sensoren bekannt ist, deren Prinzipien vom räumlich kleinen Piezokeramikelement bis zum einfachen Kugelkontakt reichen, ist der Sensor nicht Gegenstand der Erfindung.The components named for the invention are inState of the art so well known that adetailed illustration for the relevant educatedExpert is not required. Since already oneA large number of so-called crash sensors are knowntheir principles of spatially small piezoceramicelement to simple ball contact,the sensor is not the subject of the invention.
Bei der Vielzahl der bekannten Verriegelungssysteme erfaßt die Erfindung lediglich die Bereitstellung der mechanischen Energie zur Entriegelung in der einfachen und störungssicheren Ausführung.With the multitude of known locking systemsthe invention only covers the provisionthe mechanical energy for unlocking in thesimple and fail-safe design.
Da es aus mehreren Gründen günstig sein kann, den Speicherkondensator mit einer höheren als der Bordnetzspannung aufzuladen, ist die Anwendung von elektronischer Spannungsverdoppelung sowie die Integration derselben in der Baugruppe vorgesehen. Dies ist - ganz besonders im Hinblick auf EMV - elektromagnetische Verträglichkeit - als Anspruch bedeutend.Because it can be cheap for several reasonsStorage capacitor with a higher than the boardcharging the mains voltage is the application ofelectronic voltage doubling as wellIntegration of the same is provided in the assembly.This is - especially with regard to EMC -electromagnetic compatibility - as a requirementsignificant.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4326313ADE4326313A1 (en) | 1993-08-05 | 1993-08-05 | Method and arrangement for the electrical release of mechanically stored power for unlocking |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4326313ADE4326313A1 (en) | 1993-08-05 | 1993-08-05 | Method and arrangement for the electrical release of mechanically stored power for unlocking |
| Publication Number | Publication Date |
|---|---|
| DE4326313A1true DE4326313A1 (en) | 1995-02-09 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4326313AWithdrawnDE4326313A1 (en) | 1993-08-05 | 1993-08-05 | Method and arrangement for the electrical release of mechanically stored power for unlocking |
| Country | Link |
|---|---|
| DE (1) | DE4326313A1 (en) |
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