EP2701939A2

EP2701939A2 - Non-railbound vehicle

Info

Publication number: EP2701939A2
Application number: EP12727109.6A
Authority: EP
Inventors: Andrej Dronnik
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 2011-05-27
Filing date: 2012-05-23
Publication date: 2014-03-05
Also published as: US20140110205A1; WO2012163762A2; DE102011076620A1; WO2012163762A3

Abstract

The invention relates to a non-railbound vehicle (30), in particular a commercial vehicle or a bus, comprising a current collector (40) for feeding electrical energy from a two-pole overhead line, the forward conductors (11) and return conductors (12) of which can respectively be contacted by a contact strip (48) of the current collector (40). According to the invention, the current collector (40) comprises two support struts (41), which are rotatably hinged to the vehicle (30) such that, guided in a mutual swivel plane (43), said support struts can be swiveled transversely to a vehicle longitudinal axis (31). The support struts (41) articulated to a rocker (45) bearing the contact strips (48). In this way, the current collector (40) can be safely connected to or disconnected from the wire during operation of the vehicle on multi-lane roadways having an electrified lane (20) at least in sections, even at higher driving speeds, and can reliably maintain contact to the contact wire (11 and/or 12).

Description

description

The invention relates to a non-rail vehicle according to the preamble of claim 1.

It is well known to equip rail vehicles, such as electric locomotives, trains and trams, for traction with pantographs that grind the contact wire of a catenary system for feeding electrical energy into the vehicle. Through the tracking of the rails a defined relative position between the contact wire and rail vehicle can be maintained, which in normal operation a safe maintenance of a

Sliding contact between pantograph and contact wire made ^¬ light. Far less common is the external Energieein ^¬ feed-in electric vehicles that are not running on rails.

Thus, for example, from the patent DE 32 44 945 Cl a double-pole overhead line system for electrically driven vehicles of public transport known. Of the two parallel trolley wires one is live with respect to ground and the other serves as neutral. An O-bus is equipped with a pair of bar current collectors to operate in the overhead line system. In operation, the pair of bar current collectors assume an upright condition in which theirs

Slide shoes properly against the two trolley wires. The current collector bars are under the force of a Aufrichtfeder, which provides the necessary pressure of the sliding shoes to the trolley wires. The pantographs are hinged to the roof of the bus to a horizontal axis extending transversely to the direction of travel in order to be able to be lowered and raised again. To compensate for sideways travel deviations relative to the course of the overhead line wires, the current collectors are also Rotatable kale axis to hold the sliding contact to the trolley ^¬ wires can. However, O-buses are lane-bound vehicles because strong evasive maneuvers or overtaking maneuvers that require leaving the lane will result in contact loss of the pantographs with the trolley wires.

The published patent application DE 102 56 705 AI discloses a non-rail vehicle, as used as a truck in opencast mining for the transport of ore, coal or overburden. To supply an electric motor of the vehicle are two

Pantographs are present, which are in contact via contact strips with contact wires of a two-pole overhead line. So that the vehicle is always steered only so that the

Grinding strips that do not leave the contact wires are arranged on the pantograph sensor strips that carry magnetic field sensors. These determine the magnetic field strength of the magnetic field generated by the current in the contact wire so accurately that the distance of the sensor to the contact wire can be determined from the measured field strength value. The information about the position of the sensor relative to the contact wire and thus over the

Position of the pantograph and thus of the entire vehicle to the contact wire can be communicated by means of a display unit the Fahrzeugfüh ^¬ rer, so that it can execute immediately suitable steering ^¬ movements. It is also possible to supply the information of the sensors to a control unit for automatic steering of the vehicle.

The pantographs known from O-buses suffer from the disadvantage that it is relatively difficult to connect and disconnect vehicles, and that during jerky steering movements it is known as so-called rod derailments, i. to a loss of contact of the shoes from the trolley wires, can come. Thus, this system is unsuitable for lanes that have a lane at least partially electrified lane, parallel to the non-electrified lanes - for example, on multi-lane highways - run.

Finally, pantographs are also unsafe at high altitudes. ren driving speeds of 80 to 100 km / h, as they may be driven by commercial vehicles on highways.

The known solutions of open pit mining vehicles, each with a current collector per contact wire also has the disadvantage that RESIZE ^¬ ßere lateral vehicle movements can result from over 0.4 m to a loss of contact with the overhead line. In order to avoid such contact losses, the pantograph arrangement can also be designed to be wider than the vehicle, which is dangerous on public roads outside an open pit area and is not permitted in accordance with the Highway Code.

The invention is therefore based on the object to provide a genus ^¬ moderate vehicle, the pantograph when operating on multi-lane roads with at least from ^¬ cut-way electrified lane even at higher speeds of, for example, 80 to 100 km / h safely on and abdrahtbar and reliable can keep the contact to the contact wire.

The object is achieved by a non-rail vehicle of the type mentioned above with the indicated in the characterizing part of claim 1 ^¬ nen characteristics. Accordingly, the pantograph on two support bars, which are pivotally mounted on the vehicle such that they are guided transversely to a vehicle longitudinal axis in a common pivoting plane pivotally, wherein the support bars are ge ^¬ lenkig connected to a carrying the contact strips rocker. As a result, a stable frame construction of the current collector is provided, which executes pivoting movements directed transversely to the direction of travel in a pivoting plane in order to be able to compensate for lateral steering movements of the vehicle. The pivoting plane is perpendicular to the vehicle longitudinal axis substantially ^¬ . As a result, the contact strips of the current collector can safely keep in contact with the overhead line.

In an advantageous embodiment of the vehicle according to the invention, the support bars are connected via a linearly guided adjustment Rod coupled, which is displaceable by means of an actuator transverse to the vehicle longitudinal axis. On the one hand, the control rod hinged to the supporting bars gives the pantograph frame additional stability. On the other can with- means of the actuator, such as a the vehicle be ^¬ unfortified electric motor, which is connected via a transmission with the positioning rod into engagement, the pivoting movement of the current collector be actively controlled. For this purpose a Sen ^¬ sorsystem for example a video camera with suitable image analysis, which detects the position of the vehicle relative to the trolley wires of the overhead line, and a control system for a setpoint-actual comparison can be arranged on the vehicle, determines a control variable and controlled the actuator accordingly. In a preferred embodiment of the invention

Vehicle is each support beam by means of an actuator tele ^¬ skopartig off or formed retractable. Thus, the support beams may for example be formed by adjusting cylinder or other Li ^¬ nearführungen that allow adjustment of the distance between the vehicle-side pivot point and the rocker-side pivot point of the support bars. This allows a simple and safe connection or disconnection of the current collector when entering or exiting an electrified section. In addition, the loss of height of the rocker during lateral swinging of the

Pantograph be compensated by extending the telescopic support bars. Finally, these support bars allow adjusting the rocker height to the respective sag of the contact wires of the overhead line.

In an advantageous embodiment of the vehicle according to the invention, the abrasive strips on their lateral ends downwardly inclined runners and are connected to each other via an electrical insulator piece. The continuous abrasive strip has a high stability, wherein the contact strip contacting the contact strip is electrically insulated from one another by the contact strip contacting the return conductor. The downhill horns facilitate the re-ironing of a relative to the contact wire laterally too far swiveled pantograph.

In an advantageous embodiment of the vehicle according to the invention, the rocker on two electrically against each other iso ^¬ profiled parts on which the grinding strips are each fe ^¬ nd arranged. Also, the rocker is divided into two ^{gegeneinan ¬} electrically isolated parts, which are assigned to the respective contact strips. The rocker allows a rotary movement with grinding strips around a horizontal axis of rotation running transversely to the direction of travel. As a result, obstacles to the contact wires can be given by a rocking motion to avoid major damage to the abrasive strips.

In a further advantageous embodiment of the vehicle according to the invention, each carrier spar has spring means for receiving longitudinal compressions and / or for setting a constant pressure force between the grinding bars and the forward and return conductors. The spring means may for example be formed by air springs which are arranged between the vehicle-side articulation point and actuating cylinder. Due to the air suspension longitudinal compressions can be dampened but also extension and retraction of the support beams are made, so that the grinding bars when driving the catenary always an approximately constant force on the contact wires transmis ^¬ gene. Overall, by the spring means the quality of the two-pole overhead line through improved vehicles according to the invention.

In another preferred embodiment of the vehicle according to the invention, each carrier beam is connected to the vehicle via an electrical support insulator. The support insulators ensure a secure attachment of the current collector according to the invention with the vehicle and prevent flow of electricity through these attachment points in the vehicle. The traction current is led by the contact strips via flexible cable pieces into the rocker, in order to connect via two articulated arms. connected busbars to the vehicle-side pivot joint and from there via flexible power lines in the traction system of the vehicle. In another advantageous embodiment of the vehicle according to the invention, the current collector is arranged in the direction of travel behind a driver's cab of the vehicle. Due to the substantially vertical arrangement of the support beams of the

Current collector are arranged with a small footprint between the cab and charge structure of the vehicle, wherein the pivot plane of the pantograph is also disposed between these vehicle parts. Above the cab and the body no space is needed. The pantograph can be connected directly to the chassis of the vehicle. The mass of the current collector is well distributed over the height of the contact ^¬ zeugs, so that the influence of the current collector on the driving dynamics of the vehicle can be kept small.

Further advantages and features of the vehicle according to the invention will become apparent from the following description of an embodiment, which is explained in more detail with reference to the drawings, in whose

1 shows an inventive vehicle in perspective

View and

2 of the pantograph of the vehicle according to the invention in

Direction of the vehicle longitudinal axis are schematically illustrated.

1, a two-pole overhead line with a Hinlei ^¬ ter 11 and a parallel to this return conductor 12 for the electrification of a lane 20 is provided. Return conductor 11 or 12 of the overhead line are also referred to below individually as contact wire or together contact wires. They are arranged by means not shown infrastructure facilities, such as masts, boom, side support, suspension cables, hangers and the like, approximately centrally above the lane 20. The lane 20 may be, for example, the right lane of a multi-lane highway. This makes it possible to feed electric energy into vehicles 30 with a current collector 40 in order to provide traction energy to an electric or hybrid drive of the vehicle 30 or to dissipate braking energy of the vehicle 30 to the overhead line.

The current collector 40 is arranged on a vehicle longitudinal axis 31 in the direction of travel 32 of the vehicle 30 behind a driver's cab 33 and in front of a body 34. The pantograph 40 has two substantially vertically arranged support bars 41, which are articulated at their lower ends on the vehicle 30 and carry a rocker 45 at their upper ends. The support bars 41 are located in a pivoting plane 43 (see drawing plane of FIG 2), which is substantially perpendicular to the vehicle longitudinal axis 31 and between the driver's cab 33 and 34 structure. In the ^¬ ser pivoting plane 43, therefore, the rocker can perform 45 side, that is substantially horizontal and transverse to the travel direction 32 pivoting movements to the components arranged on the rocker 45 contact strips 48 (see FIG. 2) in sliding contact with the contact wires 11 and 12 to keep. In FIG 1, the vehicle is difficult, for example, to the direction of travel 32 in ge ^¬ see left-hand edge of the lane 20 30 what the current collector 40 by a compensated seen in the direction of travel 32 to the right directed pivoting movement.

According to FIG 2, the current collector 40 comprises two parallel-directed ^¬ supporting bars 41 which are hinged about a respective pivot joint 42 rotatably mounted on the vehicle 30th The pivot joints 42 ER- arbors a rotational movement of the beams 41 in a common pivoting plane 43 which is ge in FIG 2 by the plane of the drawing forms ^¬; The axes of rotation of the pivot joints 42 thus extend parallel to the vehicle longitudinal axis 31. The support bars 41 have actuating cylinder 44 in order to extend or retract them telescopically. The support beams 41 carry a horizontally arranged and transverse to the direction of travel 32 rocker 45, which are connected via pivot joints 46 with the upper ends of the piston rods of the actuating cylinder 44. The seesaw 45 comprises two abrasive strip holders arranged one behind the other in the direction of travel 32 and mounted on suspensions 47, on each of which two abrasive strips 48 are mounted side by side and run-up horns 49 are arranged at their lateral ends (see FIG. Each pair of successively arranged abrasive strips 48 grinds one of the contact wires 11 and 12. The rocker 45 is rotatable about a ho ^¬ zontale and transverse to the direction of travel 32 rocking axis to give tilting when running an abrasive strip 48 to an obstacle on the contact wire 11 and 12 respectively to Kings ^¬ nen.

The two support beams 41 are connected by a horizontal, in the pivot plane 43 linearly guided control rod 50. The control rod 50 is by means of an actuator 51, which is designed as a linear drive with gear and fastened to the vehicle 30 be ^¬ transversely to the vehicle longitudinal axis 31 slidably. This adjusting movement 52 is transmitted via coupling joints 53 on the supporting bars 41. The manipulated variable for the adjusting movement 52 is specified via a control system, not shown. To the control system includes a sensor system for determining the relative position of the vehicle 30 to the trolley wires 11 and 12, for example, a video camera with Bildauswer ^¬ tion. This determines which way the rocker 45 must be pivoted laterally, so that the grinding strips 48, the contact wires 11 and 12 grind in their work area. Such control actions may be required if the vehicle has to perform evasive or overtaking maneuvers. They may also be necessary if the contact wires 11 and 12 do not run centrally above the lane 20, as is the case for example with road curves.

Since the rocker 45 and with it the grinding bars 48 slightly lower in a lateral adjusting movement 52, the adjusting cylinder 44 can be extended to compensate for this loss of height. An extension or retraction of the actuating cylinder 44 is also advantageous in order to grind the contact wires sagging between masts 11 and 12 with uniform pressure can. Finally, the extension and retraction of the actuating cylinder 44 is used for Andrahten or wiring when the vehicle 30 enters the electrified lane 20 and leaves - such as driveways, exits or crosses of highways and overtaking maneuvers or emergency stops on the side strip. To compensate for longitudinal compression, each support rail 41 spring means 55, which are formed for example by an air suspension. In addition to the attenuation thereby achieved so that the support bars 41 can also be raised and lowered. In order to translate small spring movements and larger lifting or lowering movements of the support bars 41 and thus the grinding bars 48, a transmission is provided. The spring means 55 are formed so that the abrasive strips 48 always press with constant force against the contact wires 11 and 12 respectively.

For electrical separation between the vehicle 30 and current collector 40, the support bars 41 are connected via an electrical support insulator 56 to the vehicle 30. The rocker 45 and the holders of the abrasive strips 48 are electrically separated from each other by insulating pieces 54, but mechanically interconnected. The insulating pieces 54 may be formed, for example, as chains, so that the contact wires 11 and 12 can not be inserted centrally between the abrasive strips 48.

The traction current is tapped off by the forward conductor 11 through the pair of trailing edge strips 48 shown on the left in FIG. 2 and forwarded to the rocker 45 via a flexible power line 57. Between rocker 45 and vehicle-side swivel joint 42, the power line 57 is continued by two straight and articulated interconnected power strips. From the pivot joint 42, a flexible power line 57 supplies the traction current to the traction system of the vehicle 30. From this, the return current is returned via identical power lines 57 to the return conductor 12. The hingedly interconnected power strips serve a safe retraction or extension of the actuating cylinder 44, without the power lines 57th to be damaged. Finally, each support beam 41 is connected to the vehicle 30 via an electrical support insulator 56, so that the traction current can be performed on a defined conduction path.

Overall, the support frame formed from support bars 41 and 50 support frame for the rocker 45 ensures sufficient stability ^¬ ity in all directions. The current collector 40 does not occupy any space above the driver's cab 33, so that it can be easily folded away. Also, the construction can be removed without 34 Kon ^¬ conflict of the current collector 40th The mass of the current collector 40 is well distributed in terms of height, so that the current collector 40 has no influence on the driving dynamics of the truck 30. The width of the current collector 40 can be kept smaller than the width of the vehicle 30, the total allowable height of the vehicle 30 is also not exceeded. The current collector 40 can be reliably connected and disconnected and, in the case of lateral relative movements between the vehicle 30 and overhead contact line of up to 0.4 m, can reliably maintain contact with the contact wires 11 or 12. The bow-shaped rocker 45 with grinding strips 48 can safely travel the overhead line at 80 to 100 km / h driving speed.

Claims

claims

1. Non-rail vehicle (30), in particular load ^¬ car or bus, with a current collector (40) for feeding electrical energy from a two-pole overhead line whose Hin- (11) and return conductor (12) by one each

Contact strip (48) of the current collector (40) are contactable,

characterized in comprises that the current collector (40) has two supporting bars (41) in such a manner rotatably on the vehicle (30) are articulated, they are guided in a common pivoting plane (43) transversely pivoted to a vehicle ^¬ longitudinal axis (31), wherein the support bars (41) are pivotally connected to a rocker (45) carrying the abrasive strips (48).

2. A non-rail vehicle (30) according to claim 1, wherein the support bars (41) via a linear guided Stellstan ^¬ ge (50) are coupled, which by means of an actuator (51) transversely to the vehicle longitudinal axis (31) is displaceable.

3. Non-rail vehicle (30) according to claim 1 or 2, wherein each carrier spar (41) by means of an actuating cylinder (44) telescopically extendable or retractable.

4. Non-rail vehicle (30) according to any one of claims ^¬ 1 to 3, wherein the abrasive strips (48) at their seit ^¬ union ends downwardly inclined Auflaufhörner (49) and via an electrical insulator piece (54) interconnected are.

5. Non-rail vehicle (30) according to any one of claims ^¬ to 1 to 4, wherein the rocker (45) has two electrically against ^¬ isolated parts on which the sanding strips (48) are each arranged resiliently.

6. Non-rail vehicle (30) according to any one of claims ^¬ 1 to 5, wherein each support beam (41) spring means (55) For receiving longitudinal compressions and / or for setting a constant contact pressure of the abrasive strips (48) on the return or return conductor (11, 12).

7. A non-rail vehicle (30) according to any one of claims ^¬ 1 to 6, wherein each support beam (41) via an electrical support insulator (56) to the vehicle (30) is connected.

8. A non-rail vehicle (30) according to any one of claims ^¬ 1 to 7, wherein the current collector (40) in the direction of travel (32) behind a driver's cab (33) of the vehicle (30) is arranged.