DE102017214381B3 - Securing system for load securing in a vehicle - Google Patents

Abstract

The invention relates to a securing system (10) for securing cargo in a vehicle (1), comprising: a drive device (30) for moving a tailgate (2) of the vehicle (1) from an open position (I) to a closed position (II) via an intermediate position (III), a detection unit (40) for detecting a closing of a rear lock (4) of the tailgate (2) in the intermediate position (III), a locking device (20) for locking the tailgate (2) upon detection of the closing in the intermediate position (III) to block the further movement of the tailgate (2) in a driving operation of the vehicle (1), so that the load securing a charge (8) in a trunk (3) of the vehicle (1) is effected by the lock.

Description

The present invention relates to a security system, which serves a load securing in a vehicle. Furthermore, the invention relates to a vehicle and a method for securing a load.

It is known from the prior art that automates a tailgate in a vehicle, for. B. by a motor, from an open to a closed position and / or vice versa can be moved. For example. For this purpose, a switching means on an electronic key and / or in the vehicle can be actuated to initiate the movement of the tailgate. It is also known that such a movement is stopped or decelerated, z. B. if an obstacle is detected, to avoid damaging the tailgate.

From the DE 10 2014 005 006 A1 an electric drive motor for a drive for the motorized adjustment of an adjusting element of a motor vehicle is known. A brake arrangement with a brake element assigned to the rotor of the drive motor is used in order to inhibit a rotation of the rotor.

From the DE 10 2014 013 138 A1 a locking device for wing elements is provided in a vehicle.

A disadvantage of the known solutions that a load securing can often be carried out only consuming. If the tailgate is no longer fully closed due to large objects, the tailgate may open or close while in motion, damaging the cargo. Although a motorized stopping the movement or locking the tailgate according to the prior art, although reliably prevents the further movement of the tailgate for an opening operation, but not the movement of the tailgate while driving. This conventionally has to resort to additional fixing aids for securing the load, and, for example, the tailgate can be fixed with a rope or the like. This increases the technical complexity and the costs.

It is therefore an object of the present invention to at least partially overcome the disadvantages described above. In particular, it is an object of the present invention to provide a simplified, comfortable and reliable load securing in a vehicle.

The above object is achieved by a security system with the features of the independent system claim, a vehicle having the features of the independent device claim and by a method having the features of the independent method claim. Further features and details of the invention will become apparent from the respective dependent claims, the description and the drawings. In this case, features and details that are described in connection with the security system according to the invention apply, of course, also in connection with the vehicle according to the invention and the method according to the invention, and in each case vice versa, so that with respect to the disclosure of individual aspects of the invention is always reciprocally referred to or can be.

The object is achieved in particular by a securing system for load securing in a vehicle. For example. the vehicle is designed as a motor vehicle or passenger car or electric vehicle or the like.

• - eine Antriebsvorrichtung zur Bewegung einer Heckklappe des Fahrzeuges von einer offenen Stellung in eine geschlossene Stellung über eine Zwischenstellung, wobei vorzugsweise in der Zwischenstellung die Heckklappe noch geöffnet ist, sodass ggf. eine Ladung aus einem Kofferraum des Fahrzeuges herausragen und/oder durch eine Kraftausübung der Heckklappe auf die Ladung fixiert werden kann,
• - eine Detektionseinheit zur Detektion eines Schließens eines Heckschlosses der Heckklappe in der Zwischenstellung, bspw. dadurch, dass eine elektrische Verbindung der Detektionseinheit mit dem Heckschloss vorgesehen ist, und beim Schließen ein Signal dieser elektrischen Verbindung ausgelöst wird, z. B. durch einen Schaltkontakt oder dergleichen, wobei bevorzugt dieses Signal durch einen Mikroprozessor oder dergleichen der Detektionseinheit ausgewertet wird,
• - eine Arretierungsvorrichtung zur Arretierung der Heckklappe bei Detektion des Schließens in der Zwischenstellung, um die weitere Bewegung der Heckklappe in einem Fahrtbetrieb des Fahrzeuges zu blockieren, sodass die Ladungssicherung einer Ladung in einem Kofferraum des Fahrzeuges durch die Arretierung erfolgt.

In this case, provision is made in particular for the securing system according to the invention, and in particular the vehicle, to comprise the following components:

• a drive device for moving a tailgate of the vehicle from an open position to a closed position via an intermediate position, preferably in the intermediate position, the tailgate is still open, so possibly protrude a charge from a trunk of the vehicle and / or by a force of the Tailgate can be fixed on the cargo,
• - A detection unit for detecting a closing of a rear lock of the tailgate in the intermediate position, for example. In that an electrical connection of the detection unit is provided with the rear lock, and when closing a signal of this electrical connection is triggered, z. B. by a switch contact or the like, preferably this signal is evaluated by a microprocessor or the like of the detection unit,
• - A locking device for locking the tailgate upon detection of the closing in the intermediate position to block the further movement of the tailgate in a driving operation of the vehicle, so that the load securing a load in a trunk of the vehicle is effected by the lock.

In other words, by fixing a position of the tailgate in the intermediate position can be done so that even when driving the vehicle, the position is maintained. As a result, the advantage is achieved that an open tailgate is fixed in such a way that even with an external force, as occurs during driving, the tailgate securely and reliably holds its position in the intermediate position. Thus, it can be reliably prevented that the tailgate opens and / or closes while driving and / or when accelerating and / or braking the vehicle (ie during the driving operation). Even a high and / or shaking down the tailgate can be prevented. Thus, a cost-effective and simple load securing can be provided, since it may be possible to dispense with an additional fixing aid for fastening the tailgate (such as a rope).

In particular, a first locking function may be provided, in which the locking device and / or a braking device locks the tailgate according to a first Arretierungsart with a first locking force. This can be used, for example, when the lock should not be used to secure the load, for example when the opening of the tailgate is stopped due to an obstacle in the intermediate position. It can then z. B. the obstacle are detected, and upon detection of the obstacle, the first locking function are initiated. Furthermore, a second locking function may be provided, in which the locking device locks the tailgate according to a second locking type with a second locking force. This may be the lock for load securing, which is activated in the intermediate position upon detection of the closing of the rear lock. Preferably, the second locking force may be greater than the first locking force, for example, at least twice or three times as large. Thus, the cargo can be reliably secured and / or a movement of the tailgate can be prevented.

In the context of the invention, "load securing" is preferably understood as meaning that a load is transported in the trunk of the vehicle, in particular with an excess length, so that, for example, the tailgate can not be closed in the fully closed position. For example. To lock the load, the tailgate locks so that the tailgate stops moving and therefore can not damage the load. In the narrower sense, "load securing" may also mean that the tailgate can additionally fix the load in order, for example, to prevent the load from falling out.

Blocking the movement of the tailgate in the drive operation is preferably understood to mean that the lock is designed in such a way in particular (according to the second locking function) that (disturbing) forces which act on the tailgate during normal driving operation of the vehicle (for example in a vehicle) Speed of the vehicle up to 30 km / h or up to 50 km / h or up to 100 km / h), does not lead to a substantial movement of the tailgate from the locked intermediate position. A significant movement is, for example, a movement of more than 1 degree or more than 2 degrees or more than 4 degrees or more than 10 degrees of the tailgate, which can be rotatably and / or pivotally mounted according to the rear of the vehicle. Such a locked intermediate position of the tailgate can also be understood as a so-called "hardware store", ie an intermediate position for securing cargo.

According to a further advantage, it can be provided that the locking device is in operative connection with the tailgate and / or the drive device, preferably to exert a locking force on the tailgate and / or drive device, which acts against an outside of the tailgate and / or drive device Disturbing force acts on the tailgate, wherein preferably the locking force is at least 50 N or at least 100 N or at least 200 N or at least 500 N or at least 1000 N. This has the advantage that a particularly reliable load securing can be achieved by a particularly high force application (a locking force) by the locking device.

Preferably, the locking (according to a second locking function) by a locking force, preferably braking force to the tailgate, which is at least 100 N or at least 200 N or at least 500 N or at least 1000 N.

Moreover, it is advantageous in the case of the securing system according to the invention if the locking device has a locking element which is electrically connected to at least one electric drive unit of the drive device in order to short-circuit the drive unit for locking. For example. the drive unit is designed as a tailgate drive, preferably as an electric motor or the like. Accordingly, a short circuit of the drive unit can lead to a very high braking force, which provides a secure fixation of the tailgate, even at high Störkräfte.

Furthermore, it is optionally possible in the context of the invention that the locking element is designed as an electronic switch unit, which is integrated in a circuit with the drive unit, preferably with a stator and / or rotor of the drive unit. For example. the locking element can be driven in a detection of the closing of the tailgate in the intermediate position by an electrical signal, preferably by the detection unit, to the circuit to close, and thus perform a short circuit of the drive unit. This leads to a reliable electromagnetic fixation of the drive unit, for example between rotor and stator.

In addition, it is possible within the scope of the invention that the locking device has a (in particular mechanical) locking element, which is in mechanical operative connection with at least one gear unit of the drive device in order to mechanically block the gear unit for locking. For example. the drive element is thus designed to mechanically block the gear unit to allow a reliable and cost-effective fixation of the tailgate. Preferably, the gear unit is a transmission for the motorized movement of the tailgate, and is preferably in mechanical operative connection with a drive unit.

It is also optionally provided in the securing system according to the invention, that the locking element is designed as a wedge, which can be brought to lock in a non-positive and / or positive connection with the gear unit. This makes it possible to apply a high locking force with technically simple means.

Furthermore, it can be provided that the locking device is electrically connected to the detection unit in order to detect the detection and to automatically activate the locking. For example. the locking device can be activated by the detection unit. For this purpose, the detection unit comprises z. B. a processing device, preferably a controller, preferably a microcontroller or the like, which, for example, is electrically connected to the locking device in connection. Preferably, the detection unit comprises at least one sensor to detect a closing of the rear lock and / or the intermediate position. For example. the at least one sensor can be designed as a position sensor for the tailgate and / or as a magnetic contact switch and / or the like.

Likewise provided by the invention is a vehicle, preferably motor vehicle and / or passenger car and / or electric vehicle, in which a detection unit for monitoring a rear lock for a tailgate of the vehicle is provided, in particular is in operative connection with the rear lock, to detect a closing of the rear lock ,

In this case, it is provided in particular that a security system according to the invention is part of the vehicle. Thus, the vehicle according to the invention brings about the same advantages as have been described in detail with reference to a safety system according to the invention.

Likewise provided by the invention is a method for securing cargo in a vehicle, preferably a motor vehicle and / or passenger car and / or electric vehicle.

• - Bewegen einer Heckklappe des Fahrzeuges von einer offenen Stellung in eine Zwischenstellung,
• - Detektieren eines Schließens eines Heckschlosses der Heckklappe in der Zwischenstellung,
• - Durchführen einer Arretierung der Heckklappe, wenn das Schließen (insbesondere nur in der Zwischenstellung) detektiert wird und/oder wenn die Heckklappe in der Zwischenstellung lokalisiert wird, um die (weitere) Bewegung der Heckklappe zu verhindern, wobei die Arretierung auch in einem Fahrtbetrieb des Fahrzeuges erhalten bleibt.

In this case, provision is made in particular for the subsequent steps to be carried out, preferably successively or in any desired order, wherein individual steps can also be carried out successively:

• Moving a tailgate of the vehicle from an open position to an intermediate position,
• Detecting a closing of a tailgate of the tailgate in the intermediate position,
• - Performing a locking of the tailgate when the closing (especially only in the intermediate position) is detected and / or when the tailgate is located in the intermediate position to prevent the (further) movement of the tailgate, wherein the lock also in a driving operation of the Vehicle is preserved.

Thus, the method according to the invention brings about the same advantages as have been described in detail with reference to a safety system according to the invention. In addition, the method may be suitable for operating a security system according to the invention.

For example. It can be provided that the locking force, which is applied for locking the tailgate, is increased while driving and / or is higher in driving operation than in a parked state (parking mode) of the vehicle. Thus, for example, in parking mode, a manual movement of the tailgate continue to take place to z. B. readjust the fixation of the charge. When driving, however, the immobility of the tailgate can be guaranteed.

• 1 eine Seitenansicht eines erfindungsgemäßen Fahrzeuges, wobei sich die Heckklappe in einer geschlossenen Stellung befindet,
• 2 eine Seitenansicht eines erfindungsgemäßen Fahrzeuges, wobei sich die Heckklappe in einer offenen Stellung befindet,
• 3 eine Seitenansicht eines erfindungsgemäßen Fahrzeuges, wobei sich die Heckklappe in einer Zwischenstellung befindet,
• 4 eine Darstellung eines erfindungsgemäßen Sicherungssystems.

Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, embodiments of the invention are described in detail. The features mentioned in the claims and in the description may each be essential to the invention individually or in any desired combination. Each show:

• 1 a side view of a vehicle according to the invention, wherein the tailgate is in a closed position,
• 2 a side view of a vehicle according to the invention, wherein the tailgate is in an open position,
• 3 a side view of a vehicle according to the invention, wherein the tailgate is in an intermediate position,
• 4 an illustration of a security system according to the invention.

In the following figures, the identical reference numerals are used for the same technical features of different embodiments.

In 1 schematically is a vehicle according to the invention 1 which shows a security system according to the invention 10 includes. Here is the tailgate 2 of the vehicle 1 in a closed position II see, with the tailgate 2 for example, an in 4 shown drive device 30 can be moved. Furthermore, a detection unit 40 be provided to close a rear lock 4 the tailgate 2 to capture and / or an intermediate position III the tailgate 2 to detect.

It may be possible for a user 9 for manual movement, a force on the tailgate 2 exercises, and if necessary, the rear lock 4 opens. Next it may be possible for the user 9 an automated opening and / or closing the tailgate 2 initiated, which can then be motorized. In particular, such a motorized closing of the tailgate 2 from the open position I , what a 2 is shown, to the closed position II respectively.

By a manual intervention of the user 9 in this opening or closing process, the movement of the tailgate 2 be stopped, and thus made a (first) lock. This lock may not be sufficient to perform a load securing, ie the tailgate 2 to lock so that when driving the vehicle 1 no (substantial) movement of the tailgate 2 more is possible. For example. can the user 9 a load 8th in a trunk 3 of the vehicle 1 bring in, which protrudes so that a complete closing of the tailgate 2 in the closed position II not possible. Accordingly, the tailgate remains 2 then in an intermediate position III , what a 3 is shown.

In order to carry out the load securing, the user can 9 the stern lock 4 the tailgate 2 in the intermediate position III close, then what about the detection unit 40 is detected. Subsequently, the detection unit 40 emit an electrical detection signal, which can accordingly indicate the detection of the closing.

In 4 is an example of a structure of a security system according to the invention 10 which also serves to visualize a method according to the invention. The detection unit 40 may, for example, electrically with a processing device 50 and also with a locking device 20 be connected. Alternatively, it is also conceivable that the detection unit 40 and / or the locking device 20 the processing device 50 having. For example. is the processing device 50 as a controller 50 or as a microcontroller or as part of the vehicle electronics or the like.

The locking device 20 includes z. B. a locking element 21 fixing the tailgate 2 causes. For this purpose, the locking element 21 z. B. in mechanical or electrical operative connection with a drive unit 31 and / or a transmission unit 32 the drive device 30 stand.

Now via the detection unit 40 the closing of the rear lock 4 detected, and is also the tailgate 2 in the intermediate position III (which, for example, also via the detection unit 40 and / or the processing device 50 can be determined), so a (second) locking function can be activated to even with the influence of disturbing forces on the tailgate 2 during a driving operation of the vehicle 1 a movement of the tailgate 2 to prevent. For this purpose, z. B. by the locking device 20, an electrical signal of the detection unit 40 and / or an electrical signal of the processing device 50 detects what the closing of the rear lock 4 indexed and the control of the locking element 21 initiated. The locking element 21 is, for example, a wedge 21 or an electrical switch unit 21 which is a locking of the tailgate 2 causes.

The above explanation of the embodiments describes the present invention solely by way of example. Of course, individual features of the embodiments, if technically feasible, can be combined freely with one another, without departing from the scope of the present invention.

LIST OF REFERENCE NUMBERS

1

vehicle

2

tailgate

3

trunk

4

rear lock

8th

charge

9

user

10

security system

20

locking device

21

Locking element, electronic switch unit, wedge

30

driving device

31

drive unit

32

gear unit

40

detection unit

50

Processing device, control device

I

open position

II

closed position

III

intermediate position

Claims (10)

A securing system (10) for securing cargo in a vehicle (1), comprising: a drive device for moving a tailgate of the vehicle from an open position to a closed position via an intermediate position; - A detection unit (40) for detecting a closing of a rear lock (4) of the tailgate (2) in the intermediate position (III), - A locking device (20) for locking the tailgate (2) upon detection of the closing in the intermediate position (III) to block the further movement of the tailgate (2) in a driving operation of the vehicle (1), so that the load securing a load ( 8) takes place in a trunk (3) of the vehicle (1) by the lock. Backup system (10) after Claim 1 , characterized in that the locking device (20) with the drive device (30) is in operative connection to exert a locking force on the drive device (30), which against a from outside of the drive device (30) acting disturbance force on the tailgate (2 ), wherein the locking force is at least 50 N or at least 100 N or at least 200 N or at least 500 N or at least 1000 N. Backup system (10) after Claim 1 or 2 , characterized in that the locking device (20) comprises a locking element (21) which is electrically connected to at least one electric drive unit (31) of the drive device (30) to short the drive unit (31) for locking. Backup system (10) after Claim 3 , characterized in that the locking element (21) is designed as an electronic switch unit (21) which is integrated in a circuit with the drive unit (31), preferably with a stator and / or rotor of the drive unit (31). Safety system (10) according to one of the preceding claims, characterized in that the locking device (20) has a locking element (21) which is in mechanical operative connection with at least one gear unit (32) of the drive device (30) in order to engage the gear unit (32). to lock mechanically for locking. Backup system (10) after Claim 5 , characterized in that the locking element (21) is designed as a wedge, which can be brought to lock in a non-positive and / or positive connection with the gear unit (32). A security system (10) according to any one of the preceding claims, characterized in that the locking device (20) is electrically connected to the detection unit (40) to detect the detection and to automatically activate the locking. Vehicle (1), in which a detection unit (40) for monitoring a rear lock (4) for a tailgate (2) of the vehicle (1) is provided to detect a closing of the rear lock (4), characterized in that a security system (10) according to one of Claims 1 to 7 is provided. Method for securing cargo in a vehicle (1), wherein the following steps are carried out: Moving a tailgate (2) of the vehicle (1) from an open position (I) to an intermediate position (III), Detecting a closing of a rear lock (4) of the tailgate (2) in the intermediate position (III), - Performing a locking of the tailgate (2) upon detection of the closing in the intermediate position (III) to prevent further movement of the tailgate (2), wherein the lock is maintained even in a driving operation of the vehicle (1). Method according to Claim 9 , characterized in that a security system (10) according to one of Claims 1 to 7 is operated.

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