DE10139735A1 - Commercial vehicle, especially heavy goods vehicle, has rear view camera that sends image of monitored zone to screen in driver's cab with marker for aligning with defined loading position - Google Patents

Abstract

The vehicle has a loading hoist platform (3) on the rear of the vehicle for operation by an operator's unit (4), a rear view camera (8) on the rear that sends an image of a monitored zone (9) to a screen (11) in the driver's cab with a marker (12) positioned so that the vehicle has a defined loading position when driven up to an associated loading station (13) if the marking coincides with a corner or edge (15) of the station facing the platform.

Description

The invention relates to a commercial vehicle, in particular a Trucks with or without a trailer or semi-trailer.

Trucks are known to be mounted on a rear End of vehicle have a tail lift, which with the help of this rear end of the vehicle arranged control unit can be actuated. Such a tail lift is usually from one that closes the rear end of the vehicle Closed position adjustable in a ramp position, in which the tail lift extends substantially horizontally and in the tail lift is a loading area of the vehicle extended at the back. Tail lifts are also known, the additionally or alternatively adjustable to a floor position in which they are essentially level on a floor area lie behind the rear end of the vehicle. Tail lifts can directly at the rear of a truck be trained. It is also possible to use such a tail lift on a trailer or on a semi-trailer Train trucks.

One to be approached by such a truck Loading station can be designed as a loading ramp, for example be the one end section facing the tail lift on which the tail lift in its ramp position is hangable. The vehicle can then be loaded and unloaded particularly easy via the ramp and the tail lift be performed.

Other loading stations can, for example, by a ground-level loading area to which the Tail lift must be lowered.

So that the loading and unloading process of such a vehicle can be carried out, the truck must be in a Be brought into the loading position in the tail lift - depending on the loading station - in their ramp position or in their Floor position can be adjusted. To achieve this The loading position must be reversed against the vehicle for example, a loading station designed as a loading ramp be ranked. This maneuvering process requires from Drivers a lot of experience and care, as only in one predetermined relative position between vehicle and ramp (Loading position) an optimal one for loading and unloading Place the tail lift on the end section of the loading ramp is possible. The vehicle must reach this predetermined loading position a relatively narrowly limited Distance between loading ramp and rear end of vehicle adhere to the tail lift properly on the To be able to hang up the end section of the loading ramp. In addition, must the loading ramp can be approached relatively vertically to a sloping or one-sided resting of the tail lift on the Avoid end section of the loading ramp.

Around this relatively narrowly limited predetermined loading position The driver must be able to find them, in particular for a vehicle with a trailer or semi-trailer, according to a Pre-positioning the vehicle to get out Enter the rear end of the vehicle and the current positioning inspect the rear end of the vehicle. Then must the driver again go to the driver's cabin to the Correct the positioning of the vehicle. Then the Drivers go back to the loading ramp to check the Check position. As soon as the driver - often after Repeated corrections - the vehicle was successful in the to position the intended loading position, he can use Help the attached at the rear of the vehicle Control unit lower the tail lift onto the loading ramp. in the In view of the fact that the driver's working time at Transport of goods by truck forms the largest cost factor, there is a need here when loading and unloading the truck to save time.

To make it easier to maneuver a commercial vehicle, it is known, a rear-view camera at the rear of the vehicle to arrange a picture of a rear end of the vehicle lying surveillance room sends to a screen that is arranged in the cab of the vehicle. With the help of a Such a rear view camera can be used directly by the driver see the space behind the rear end of the vehicle, whereby reversing is simplified. Because such Rearview camera inevitably with a wide angle lens must be provided to the surveillance room behind the to be able to detect the rear end of the vehicle, and because of a Camera and a screen usually only The vehicle driver can generate two-dimensional images very difficult distances between the rear end of the vehicle and estimate an obstacle that the vehicle is facing Reverse approaching. Accordingly, such Rearview camera the first approach of the vehicle lightening a loading station forces the driver however, still to find the one you want Loading position to leave the vehicle at the current Relative position between the rear end of the vehicle and the loading ramp to be examined on site.

The present invention addresses the problem for a commercial vehicle of the type mentioned at the beginning Possibility to show with the finding a predetermined loading position is simplified.

According to the invention, this problem is solved by a commercial vehicle solved with the features of claim 1.

The invention is based on the general idea, in or Make a mark on the screen that makes it easy to find the desired loading position simplified by the Driver guides his vehicle up to the mark with a characteristic corner or edge of each Loading station matches on the screen. Once this is the Case, the vehicle driver can assume that the optimal loading position is reached, so that without further Maneuvering or correcting the tail lift can be lowered. Because the driver is therefore easy to find the intended optimal loading position the vehicle no longer has to leave, results from the invention an extreme time advantage over conventional ones Commercial vehicles.

With a loading station designed as a loading ramp the characteristic edge, for example, by one of the Loading platform facing the upper front edge of the loading ramp be educated. The one assigned to such a loading ramp The marker is then positioned on or in the screen so that this leading edge in the screen is then aligned with the associated marking covers if the commercial vehicle this Marking assigned loading position reached in the Tail lift for loading and unloading safely on a die Front edge of the end section of the loading ramp is hangable.

In addition or as an alternative to a marking, the one Loading ramp is assigned, can be in or on the screen Marking should be attached, one as a ground level Loading area is assigned to a trained loading station. at Such a loading station can be the characteristic one Conveniently corner or edge by a lower edge of a the tail lift, up from the floor protruding boundary of the loading area. A Such limitation can be achieved, for example, by a step or be formed by a house wall. The loading position is then selected so that the tail lift for loading and Unload safely before this limit to the loading area is hangable.

In a particularly advantageous embodiment, the Operating unit of the tail lift is arranged in the cab his. This measure can make one more clear Time savings can be realized because the driver is now too the cab is no longer used to operate the tail lift must leave. Because the swivel range of the tail lift completely within that captured by the rearview camera Interstitial space, result from this Remote control of the tail lift no safety concerns as the Vehicle drivers can monitor via his screen whether a person or a person is in the swivel area of the tail lift other obstacle.

The mark made on the screen or on it Markings can be fixed or adjustable be attached to a display case. It is the same possible one or more markings in the on the screen integrate the displayed image in a fixed or adjustable manner, whereby the respective marking becomes an image component becomes.

According to another embodiment, a Control unit can be provided in the for several different Loading stations each have an associated marking is stored or storable, being a stored Marking can be called up by entering the desired loading station and can be displayed on the screen. With the help of this Continuing education is possible for basically any number different loading stations the associated markings save and display on the screen if necessary. On in principle, this can be done by any vehicle Loading station with a corresponding marking be provided. Loading stations, in particular loading ramps, can differ, for example Differentiate ramp heights accordingly require different loading positions for the vehicle. By assigning individual markings especially the same tours for vehicles cover, finding the different loading positions be simplified considerably.

Other important features and advantages of the invention result itself from the dependent claims, from the drawings and from the associated description of the figures using the drawings.

It is understood that the above and the Features to be explained below not only in the combination given in each case, but also in others Combinations or alone can be used without to leave the scope of the present invention.

Preferred embodiments of the invention are in the Drawings are shown and are shown in the following Description explained in more detail.

Each shows schematically:

Fig. 1 is a side view of a truck as a trailer formed without commercial vehicle at a loading station designed as a loading ramp,

FIG. 2 shows a view as in FIG. 1, but with a loading station designed as a loading area,

Fig. 3 is a view on a screen with attached thereto tag in a first embodiment,

Fig. 4 is a view as in FIG. 3, but in a second embodiment,

Fig. 5 is a view as in Fig. 1, but in a truck designed as a truck with a trailer, and

Fig. 6 is a view as in Fig. 1, but in a commercial vehicle designed as a truck with a trailer.

The same applies to the present figures Reference signs to the same or functionally the same or similar Characteristics.

According to Fig. 1, an inventive utility vehicle 1, which in the embodiment of Fig. 1 is formed as a truck without a trailer, at the rear end of the vehicle 2, a lifting loading platform 3, which, at least between a depicted in FIG. 1 by solid lines closed position and an ramp position shown in broken lines in FIG. 1 is adjustable. To operate the tail lift 3 , at least one control unit 4 is provided, which is connected to a drive unit 6 of the tail lift 3 via corresponding lines 5 . This operating unit can be arranged near the tail lift 3 in the area of the rear vehicle end 2 on the vehicle 1 . However, an embodiment in which the control unit 4 is accommodated in a driver's cab 7 of the vehicle 1 is preferred, such that a vehicle driver can remain in the driver's cab 7 in order to operate the tail lift 3 . Likewise, an embodiment is possible, both as such a control unit 4 is arranged in the cab 7 and on the rear end of the vehicle 2 respectively, so that the lifting loading platform 3 from both the cab 7 as is also operable directly on the tail lift. 3

The commercial vehicle 1 according to the invention is also equipped with a rear- view camera 8 , which captures an image of a monitoring room 9 which is located behind the rear end 2 of the vehicle. The rear view camera 8 sends the image signals to a screen 11 , which is arranged in the driver's cab 7 , via corresponding lines 10 . The image captured by the rear-view camera 8 can now be displayed on this screen 11 in such a way that the vehicle driver in the driver's cab 7 can monitor the monitoring room 9 .

According to the invention, at least one marking 12 is made in or on the screen 11 , which is shown here in the form of a horizontal line. This marker 12 is assigned to a predetermined loading station 13 or a specific loading station type. In the case of FIG. 1, this loading station 13 is formed by a loading ramp 14 . The marking 12 is now assigned a predetermined characteristic corner or edge facing the tail lift 3 , which is formed by an upper front edge 15 in the loading ramp 14 of FIG. 1. According to the invention, the marker 12 is positioned in or on the screen 11 such that the commercial vehicle 1, when this front edge 15 overlaps with the marker 12 in the screen 11, has a predetermined loading position assigned to this loading station 13 , in which the tail lift 3 is for one open optimal loading and unloading process or lowering onto the loading ramp 14 .

The present invention works as follows:

If the vehicle 1 is to be brought into its optimal loading position for the loading and unloading process relative to the loading ramp 14 for loading or unloading, the vehicle operator shunts the vehicle 1 such that the vehicle 1 slowly approaches the loading ramp 14 with its rear vehicle end 2 , As soon as the loading ramp 14 arrives in the monitoring room 9 of the rear-view camera 8 , the vehicle driver can check on the screen 11 that the predetermined loading position has been reached. He can then maneuver the vehicle 1 over the image in the monitor 11 until the front edge 15 of the loading ramp 14 overlaps with the marking 12 on the screen 11. At the same time, the driver can control the vertical orientation of the vehicle 1 relative to the front edge 15 . Only when the vehicle 1 approaches the front edge 15 perpendicularly, does the marking 12 , which is designed as a horizontal line, and the front edge 15 shown in the screen 11 run parallel to one another.

As soon as the overlap of the front edge 15 and the marking 12 is present on the screen 11 , the desired loading position for the vehicle 1 relative to the loading ramp 14 has been reached. The vehicle driver can then expediently lower the tail lift 3 with the control unit 4 arranged in the driver's cab 7 , said lift being placed securely, that is to say with sufficient overlap, on an end section 16 of the loading ramp 14 which has the front edge 15 . This placement process can also be checked on the screen 11 .

According to FIG. 2, a marking 17 can also be attached to the screen 11 , which is assigned to another loading station 13 , here a loading surface 18 at ground level.

The characteristic of such corner or edge Verladefläche 18 is here facing by a lower edge 19 a of the lifting loading platform 3, 18 protruding boundary 21 formed upwardly from the bottom 20 of the Verladefläche. This boundary 21 of the loading area 18 is formed in FIG. 2 by the bottom step of a staircase. The marking 17 assigned to this loading area 18 is positioned in or on the screen 11 in such a way that, in the associated loading position of the vehicle 1, the tail lift 3 can be placed securely in front of this limitation 21 on the loading area 18 . In FIG. 2, the lifting loading platform 3 is adjustable for this purpose in a bottom position, in which it comes to the floor 20 or on the ground level Verladefläche 18 for edition. With the help of the marking 17 , it is ensured here that when the tail lift 3 is lowered into its floor position according to FIG. 2, there is no collision between the tail lift 3 and the boundary 21 .

According to FIGS. 3 and 4, several, in particular also more than two, different markings 12 and 17 can be provided on or in the screen 11 .

In the embodiment according to FIG. 3, the markings 12 and 17 are attached to a screen housing 22 . The markings can be firmly attached to the screen housing 22 . It is also possible to make the respective mark 12 or 17 adjustable on the screen housing 22 . For example, this can be individually adapted to a specific loading station 13 .

Instead of attaching the markings 12 and 17 to the screen housing 22 , these can, for. B. also attached to the screen surface, in particular glued or painted.

In the embodiment according to FIG. 4, the markings 12 and 17 are integrated in the image shown on the screen 11 . This means that the markings 12 and 17 form part of the image displayed on the screen 11 . In this embodiment, the adjustability or adjustability of the respective marking 12 or 17 can be realized in a particularly simple manner. This also allows fine adjustment of the respective marking 12 or 17 to adapt the vehicle 1 to a specific loading station 13 .

While the markings 12 and 17 in the embodiment according to FIG. 3 are formed by continuous horizontal lines or bars, the line-shaped markings 12 and 17 in the embodiment according to FIG. 4 are represented by broken lines, which ensures that the breaks in the markings 12 , 17 the edge 15 or 19 characteristic of the respective loading station 13 can be seen particularly well on the screen 11 .

According to FIGS. 3 and 4, a control unit 23 can also be provided in the invention, with the aid of which an associated marking 12 , 17 can be stored for several different loading stations 13 . For example, in a storage mode of the control unit 23, a specific loading station 13 can be operated in a conventional manner, e.g. B. with a guide. As soon as the desired loading position has been reached, a corresponding marking on the screen 11 can then be set and assigned, which is then stored in corresponding storage means in the control unit 23 . The next time you approach the loading station stored in this way, the associated marking can be called up by entering the respective loading station 13 and displayed on the screen 11 . For example, the desired loading station 13 can be selected with the aid of an adjusting element 24 and a display device 25 , the associated marking 12 , 17 of which is then displayed on the screen 11 in order to carry out the starting process to find the loading position.

According to Fig. 5 commercial vehicle 1 according to the invention may be formed with a semi-trailer 26 as trucks.

Correspondingly, the utility vehicle 1 according to FIG. 6 can also be formed by a truck with a trailer 27 . It is fundamentally possible for both the trailer 27 and the towing vehicle to be equipped with a tail lift 3 . It is clear that in such an embodiment which is arranged in the cab 7 operating unit 4 automatically or manually assigned for operating the lifting loading platform of the tractor 3 and the trailer 27 associated lifting loading platform 3 is switchable. Unless both the trailer 27 are fitted and the tractor with a rear-view camera 8, measures are taken here too that allow an arbitrary or automatic switching between the two cameras. 8

According to FIGS. 1, 5 and 6, the loading platform 14 suitably dimensioned so that the lifting loading platform 3 runs in its ramp position substantially horizontal when it rests on the end portion 16 of the loading dock 14.

Claims (9)

1. commercial vehicle, in particular trucks with or without a trailer ( 27 ) or semi-trailer ( 26 ),
with a tail lift ( 3 ) arranged at the rear end of the vehicle ( 2 ), which can be actuated by an operating unit ( 4 ),
With a rear view camera ( 8 ) arranged at the rear end of the vehicle ( 3 ), which sends an image of a surveillance space ( 9 ) behind the rear end of the vehicle ( 2 ) to a screen ( 11 ), which is located in a driver's cab ( 7 ) of the vehicle ( 1 ) is arranged
wherein at least one marking ( 12 , 17 ) is attached in or on the screen ( 11 ) and is positioned such that the vehicle ( 19 ) has a predetermined loading position when approaching a loading station ( 13 ) assigned to the marking ( 12 , 17 ), when an overlap is reached in the screen ( 11 ) between the marking ( 12 , 17 ) and a predetermined corner or edge ( 15 , 19 ) of the loading station ( 13 ) facing the tail lift ( 3 ). 2. Commercial vehicle according to claim 1, characterized in that a marking ( 12 ) is provided for a loading station ( 13 ) designed as a loading ramp ( 14 ), the edge through an upper front edge ( 15 ) of the loading ramp ( 3 ) facing the tail lift ( 3 ). 14 ) is formed, the associated loading position being selected such that the tail lift ( 3 ) can be securely placed on an end section ( 16 ) of the loading ramp ( 14 ) having the front edge ( 15 ) for loading and unloading. 3. Commercial vehicle according to claim 2, characterized in that the loading ramp ( 14 ) and / or the tail lift ( 3 ) is dimensioned such that the tail lift ( 3 ) runs essentially horizontally when it is on the end section ( 16 ) of the loading ramp ( 14 ) rests. 4. A commercial vehicle according to one of claims 1 to 3, characterized in that a marking (17) is provided for a trained as walk-Verladefläche (18) loading station (13), whereby the corner or edge is formed by a lower edge (19) of one of the Tailgate ( 3 ) facing, upward from the floor ( 20 ) boundary ( 21 ) of the loading surface ( 18 ) is formed, the associated loading position being selected so that the tailgate ( 3 ) is safe for loading and unloading before the boundary ( 21 ) can be placed on the loading surface ( 18 ). 5. Commercial vehicle according to one of claims 1 to 4, characterized in that the control unit ( 4 ) of the tail lift ( 3 ) is arranged in the cab ( 7 ). 6. Commercial vehicle according to one of claims 1 to 5, characterized in that two operating units ( 4 ) are provided for actuating the tail lift ( 3 ), one at the rear end of the vehicle ( 2 ) at the tail lift ( 3 ) and the other in Cab ( 7 ) is arranged. 7. Commercial vehicle according to one of claims 1 to 6, characterized in that at least one marker ( 12 , 17 ) on a screen housing (22) is fixed or adjustable. 8. Commercial vehicle according to one of claims 1 to 7, characterized in that at least one marker ( 12 , 17 ) in the image shown on the screen (11) is integrated or adjustable. 9. Commercial vehicle according to one of claims 1 to 8, characterized in that a control unit ( 23 ) is provided, in which an associated marking ( 12 , 17 ) is stored or can be stored for several different loading stations ( 13 ), a stored marking ( 12 , 17 ) can be called up by entering the desired loading station ( 13 ) and can be displayed on the screen (11).