Tugger Train Trailer for a Tugger Train

Abstract

The invention relates to a route train trailer (2a; 2b; 2c) for a route train (1), wherein the route train trailer (2a; 2b; 2c) has a chassis (3; 3a, 3b) with at least one wheel (4). The wheel (4) is drivingly connected to an electric travel drive motor (7). The electric travel drive motor (7) is controlled by an electronic controller which actuates the travel drive motor (7) depending on an acceleration pulse (B) and/or delay pulse (V) acting on the route train trailer (2a; 2b; 2c).

Claims

1. A tugger train trailer for a tugger train, comprising: a chassis with at least one wheel, wherein the wheel is in a driven connection with an electric travel drive motor and the electric travel motor is controlled by an electronic control device which actuates the travel drive motor as a function of an acceleration pulse, a deceleration pulse, or an acceleration pulse and a deceleration pulse acting on the tugger train trailer.

2. The tugger train trailer according to claim 1, wherein the electronic control device is in an operative connection with a sensor device which detects the acceleration pulse, the deceleration pulse, or the acceleration pulse and the deceleration pulse acting on the tugger train trailer.

3. The tugger train trailer according to claim 1, wherein the sensor device is an acceleration sensor.

4. The tugger train trailer according to claim 2, wherein the wheel is provided with the electric travel drive motor, the electronic control device and the sensor device.

5. The tugger train trailer according to claim 1, wherein the electric travel drive motor is a wheel hub motor.

6. The tugger train trailer according to claim 1, wherein the wheel is provided with a battery to supply power to the electric travel drive motor.

7. The tugger train trailer according to claim 1, further comprising a battery to supply power to the electric travel drive motor of the wheel.

8. A transport system comprising a towing vehicle and at least one tugger train trailer coupled to the towing vehicle according to claim 1.

9. The transport system according to claim 8, wherein the towing vehicle is provided with a battery to supply the electric travel drive motor of the wheel.

10. The transport system according to claim 9, wherein the battery is a traction battery of the towing vehicle.

Description

[0018] Additional advantages and details of the invention are described in greater detail below with reference to the exemplary embodiments illustrated in the accompanying schematic figures. In the drawings:

[0019] FIG. 1 shows a tugger train with two tugger train trailers according to the invention which are coupled to each other by means of a drawbar,

[0020] FIG. 2 shows an additional exemplary embodiment of a tugger train trailer according to the invention of a tugger train, and

[0021] FIG. 3 shows a wheel according to the invention of the tugger train trailer illustrated in FIG. 1 or FIG. 2.

[0022] FIG. 1 shows a perspective view of a tugger train 1 with two tugger train trailers 2a, 2b according to the invention.

[0023] The two tugger train trailers 2a, 2b each have a chassis 3a, 3b with which the corresponding tugger train trailer 2a, 2b runs on a roadway surface. The chassis 3a, 3b each have at least one wheel 4.

[0024] The two tugger train trailers 2a, 2b are connected to each other by means of a drawbar 15.

[0025] In the exemplary embodiment illustrated in FIG. 1, the drawbar 15 is formed by at least two or three intersecting drawbar links 15a, 15b, 15c. However, the invention is not restricted to this embodiment of a drawbar 15.

[0026] In the exemplary embodiment of the tugger train trailer 2a, 2b illustrated in FIG. 1, the wheels 4 are non-steered wheels. The chassis 3a, 3b are each oriented essentially centrally in the longitudinal direction of the tugger train trailers 2a, 2b.

[0027] FIG. 2 shows an additional exemplary embodiment of a tugger train trailer 2c of a tugger train 1 according to the invention.

[0028] The tugger train trailer 2c illustrated in FIG. 2 has a chassis 3 which consists of a forward chassis 3a and a rear chassis 3c, with which the tugger train trailer 2c runs on a roadway surface. The forward chassis 3a and the rear chassis 3c each have two wheels 4. The wheels 4 of the forward chassis 3a and/or the wheels 4 of the rear chassis 3c can each be in the form of steerable wheels.

[0029] The tugger train trailer 2c shown in FIG. 2, for the connection with a preceding tractor or a preceding tugger train trailer, has a drawbar 15 on the front. The tugger train trailer 2c in FIG. 2 has a trailer coupling 16 on the rear for the connection with a trailing tugger train trailer.

[0030] FIG. 3 is a schematic drawing showing a wheel 4 of the tugger train trailer 2a, 2b in FIG. 1 or of the tugger train trailer 2c in FIG. 2.

[0031] The wheel 4 has a wheel hub 6 that is rotational around an axis of rotation 5 and is in a driven connection with an electric travel drive motor 7 and is driven by it. The electric travel drive motor 7 is controlled by an electronic control device 8 which actuates the travel drive motor 7 as a function of an acceleration pulse B and/or deceleration pulse V that acts on the tugger train trailer 2a or 2b or 2c, which is exerted on the tugger train trailers 2a or 2b or 2c by a tractor vehicle not shown in any further detail in FIG. 1.

[0032] For this purpose the electronic control device 8 is in operative communication with a sensor device 9 which detects the acceleration pulse B and/or deceleration pulse V acting on the tugger train trailer 2a or 2b or 2c.

[0033] The sensor device 9 can, for example, be in the form of an acceleration sensor 10, which detects the acceleration on the tugger train trailer 2a or 2b or 2c in the horizontal travel direction.

[0034] The wheel 4 is preferably provided with the electric travel drive motor 7, the electronic control device 8 and the sensor device 9.

[0035] For this purpose, the electric travel drive motor 7 is preferably in the form of a wheel hub motor 11 that is built into the wheel 4.

[0036] The wheel 4 can also be provided with a battery 12 to supply power to the electric travel drive motor 7.

[0037] The tugger train trailer 2a, 2b or 2c can alternatively or additionally be provided with a battery 13 to supply power to the electric travel drive motor 7 of the wheel 4.

[0038] Not illustrated in further detail in FIGS. 1 and 2 is a tractor vehicle to which the tugger train trailers 2a, 2b and 2c are hitched. Alternatively or additionally, the tractor vehicle can be provided with a battery to supply power to the electric travel drive motor 7 of the wheel 4.

[0039] The electronic control device 8 is configured to that when an acceleration pulse B and/or a deceleration pulse V acts on the tugger train trailers 2a or 2b or 2c, the acceleration pulse B and/or the deceleration pulse V is set to zero so that the wheel 4 idles corresponding to the acceleration and/or speed of the tractor vehicle, so that the tugger train trailer 2a or 2b or 2c travels at the same speed as the tractor vehicle.

[0040] The tugger train trailer 2a or 2b or 2c equipped with the wheel 4 according to the invention makes possible a series of advantages:

[0041] In a tugger train, equipping the wheels 4 of the tugger train trailer 2a, 2b, 2c with the travel drive motor 7 makes it possible to sharply reduce the traction force of the tractor vehicle. With the tugger train trailers 2a, 2b, 2c according to the invention, a tugger train with a large number of tugger train trailers 2a, 2b 2c or with a heavy cargo load can be operated with a small tractor vehicle, because all the tractor vehicle has to do is specify the direction of travel, move itself and generate the acceleration pulse B and/or deceleration pulse V corresponding to the tugger train trailers 2a, 2b, 2c, but no longer needs to apply the traction forces and/or braking forces for the tugger train trailers 2a, 2b, 2c because these forces are produced by the wheels 4 themselves which are equipped with the travel drive motors 7.

[0042] In addition, on the tugger train trailers 2a, 2b, 2c according to the invention, the traction forces to move the tugger train trailers 2a, 2b, 2c are no longer transmitted via the drawbars 15 or via the tugger train trailers 2a, 2b, 2c. With the wheels 4 of the tugger train trailers 2a, 2b, 2c driven by the corresponding traction drive motor 7, the drawbars 15 are relieved of the traction forces.

[0043] The tugger train trailers 2a, 2b, 2c according to the invention make it possible to assemble longer tugger trains with a large number of tugger train trailers 2a, 2b, 2c.

[0044] With the tugger train trailers 2a, 2b, 2c according to the invention there is also an improved braking action of a tugger train 1 with a precisely controlled deceleration of the tugger train 1 and an improved starting action and braking action on ramps or slopes, because each tugger train trailer 2a, 2b, 2c accelerates and decelerates for itself with the wheels 4 equipped with the travel drive motors 7.