EP3568315A1 - Electrified road transport system - Google Patents
Electrified road transport systemInfo
- Publication number
- EP3568315A1 EP3568315A1 EP18704493.8A EP18704493A EP3568315A1 EP 3568315 A1 EP3568315 A1 EP 3568315A1 EP 18704493 A EP18704493 A EP 18704493A EP 3568315 A1 EP3568315 A1 EP 3568315A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pantograph
- road
- bound
- masts
- electrified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- 230000008859 change Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 6
- 239000000725 suspension Substances 0.000 description 23
- 238000005259 measurement Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 206010053567 Coagulopathies Diseases 0.000 description 1
- VVNCNSJFMMFHPL-VKHMYHEASA-N D-penicillamine Chemical compound CC(C)(S)[C@@H](N)C(O)=O VVNCNSJFMMFHPL-VKHMYHEASA-N 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/20—Details of contact bow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/22—Supporting means for the contact bow
- B60L5/24—Pantographs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/22—Supporting means for the contact bow
- B60L5/28—Devices for lifting and resetting the collector
- B60L5/30—Devices for lifting and resetting the collector using springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/18—Section insulators; Section switches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
- B60M1/23—Arrangements for suspending trolley wires from catenary line
Definitions
- the invention relates to a road-bound electrified transport system.
- the invention relates to a method for stabilizing a catenary system of a rhinestone close ⁇ electrified-bound transport system.
- Electric transport systems for the transport of goods and persons with catenaries for the supply of electric vehicles are used in many different variants.
- the use of lane-bound pensionable systems typically powered with direct current two-pole overhead contact ⁇ processing systems are used for non-rail vehicles. These have the advantage of a clotting ⁇ smaller space requirements of the vehicle components and increased security.
- the two-pole overhead lines are arranged over electrified lanes and are contacted by electrified commercial vehicles with the aid of actively readjusting current collectors, also called pantographs. With the help of the active readjusting current collectors, considerable variations in the horizontal and vertical position above the traffic lane compared to the nominal position caused by constructive system features or temporary environmental conditions are compensated.
- Horizontal position deviations between the vehicle and the drive line can, for example, result from a lateral offset of the vehicle
- Section insulator held by the suspension cable only vertical chain drives are supported in curves, so that a zig zag shaped course ⁇ forms in the turns. Because to hold the weight of the track insulator, this must be the
- Track separator carrying carrying rope arranged directly above it be. If a change of the contact wires occurs in a parallel field, a lateral offset between the two contact wires results.
- a time-varying offset can be done for example by a wind output of the overhead line in crosswind.
- positional deviations may result from building tolerances.
- Horizontal position deviations between catenaries and vehicles can also result from a variable lateral positioning of the vehicle within ei ⁇ ner electrified track.
- pantograph must be secured while driving on non-electrified routes within the horizontal and vertical vehicle boundary to avoid contact with other vehicles or structural infrastructure. This results in a considerable complexity of
- Pantograph architecture in terms of degrees of freedom, Actuators, sensors, control components that lead to high costs and high weight of the pantograph.
- Transport system in which be compensated or reduced with less effort between the vehicle and contact wire.
- the invention-road electrified Trans ⁇ port system includes a catenary system with a plurality of poles and suspended from the mast overhead lines, which supporting cables and suspended thereon contact wires comprise, and at least one electrified transport vehicle having a pantograph on. Under a pantograph is to be understood as usual a mounted on a vehicle pantograph.
- a road-bound electrified transport system is to be understood as a transport system in which the relevant transport vehicles travel on a track in a non-rail-bound manner and draw electric power by lane.
- the catenary system has constructive modifications to reduce the horizontal and / or vertical position tolerances of the contact wires.
- the structural modifications include straight line masts attached to poles or jibs of masts and skewed overhead lines in straight sections and / or curves and suspension cables and / or wires with smaller cross sections and / or higher longitudinal tensile forces.
- section insulators are suspended directly on the masts or outriggers of the masts, then skewed catenaries can be installed in curves, which is accompanied by an improved position stability of the contact wires. If cross sections of supporting cables and / or contact wires are reduced, these offer a lower contact surface for crosswinds. A lower susceptibility to side winds is associated with a smaller deviation of the contact wires from a rest position. The reduction of the horizontal and / or vertical positional tolerances of the contact wires allows a simplified construction of the current consumers used for electrified road vehicles ⁇ .
- the overhead line system includes additional reinforcement lines on the masts
- the guy wires of the contact wires are designed as two-legged from ⁇ voltages without parallel fields.
- the mast distances in the direction of the line compared to mast distances in straight overhead lines unchanged, so that compared to an arrangement with straight overhead lines reduced horizontal and / or vertical loading tolerances of the contact wires result.
- mast clearances in the direction of the line of about 60 m are used in conventional straight overhead lines.
- the mast spacings should now be maintained in this embodiment, resulting in reduced horizontal and / or vertical positional tolerances of the contact wires due to the better rigidity of the overhead lines due to the skewed arrangement of the overhead lines compared to a conventional arrangement.
- wel ⁇ cher has a reduced workspace.
- the reduced working area preferably a smaller vertical working area, allows a smoother pantograph run, less contact force jumps, reduced wear and therefore longer service life and reduced operating costs of the pantograph.
- a working area of a conventional pantograph in a conventional electrified transport system is assumed.
- the pantograph can also have a horizontal workspace reduced in size compared to conventional pantographs. point.
- the working area vertical, horizontal
- the Be ⁇ rich it can occupy the current collector or active drive. Consequently, in this variant, a change in the position of the pantograph in the transverse direction is restricted.
- Advantageous are by way allows, in this embodiment for the cover of a lower horizontal working space less actuators, a smaller control dynamics up to the elimination of an entire free ⁇ awareness.
- this makes it possible to reduce the complexity of the structure of the pantograph.
- the pantograph of the electrified transport vehicle has a reduced positional tolerance.
- the width of the possible contact area of the current collector can be reduced because the possible variation of the positions of the contact wires is limited.
- allowed positional deviations of the contact wires should be understood as positional tolerances. These result from structural tolerances and mechanical effects in the system (wheel tensioner), the wear of the contact wire, vertically acting ice loads and horizontally acting wind loads.
- the position tolerances thus define a space in which the contact wires are to be expected. This space must be smaller than or equal to the working space of the pantograph so that it can always reliably contact the contact wire.
- the pantograph assumes an invariable position in the lateral direction and / or vertical direction. In this variant, the technical complexity for the production, maintenance and operation of such Pan- graph is particularly low.
- the pantograph for vertical attitude adjustment a passive air spring system and / or a passive mechanical spring system.
- a pas sive ⁇ spring system has a significantly lower complexity and susceptibility to as a regulated pneumatic system used to control a conventional pantograph of the position and movement.
- the electrified transport vehicle has an automated Umschalteinrich ⁇ tion for a change in the power supply of the electrified transport vehicle, which is triggered in the event that the pantograph of the electrified transport vehicle has no safe contact with the contact wire ,
- an automated switching device makes sense in particular when the working area of the pantograph is reduced.
- the automated switching can, for example, depending on constantly updated measurement information, which are detected by sensors or are determined by a direct current / voltage measurement, made. These can therefore either directly include the existing current flow or also indirect measurement information, eg with regard to a wind speed or the like.
- FIG. 2 shows a side view of an arrangement of a section insulator according to an embodiment of the invention in a curve
- FIG. 3 shows a plan view of the arrangement shown in FIG. 2,
- FIG. 5 is a plan view of an arrangement of a catenary according to an embodiment of the invention over egg ⁇ ner straight roadway,
- FIG 6 is a perspective view of the illustrated in FIG 5 ⁇ clear arrangement of a catenary
- FIG. 7 is a plan view of a two-strand bracing without parallel feeder
- FIG 8 is a flow diagram illustrating a method for stabilizing a catenary system of a rhinestone close bunde ⁇ NEN electrified transport system in accordance with an off ⁇ exemplary implementation of the invention.
- Section insulators are used to separate different feed sections of a catenary network from each other.
- the section insulator 15 is suspended by means of suspensions 14 on a support cable 11.
- the suspensions 14 are stabilized in the horizontal direction by a longitudinal stabilizer 13.
- a trolley wire of a different supply section is arranged each ⁇ wells. The two contact wires are electrically isolated from each other by the track insulator.
- Figure 2 is a side view of an arrangement 20 of a
- Section separator 15 according to an embodiment of the invention. shown. As can be seen in FIG. 3 and FIG. 4, an arrangement 20 of a section separator 15 is shown in a curve region.
- the section insulator 15 is not suspended from a support cable 11 as in the conventional arrangement in FIG. 1, but is suspended directly by means of two suspension cables 14a on a boom 24 of a trolley mast 23.
- the two suspension ropes 14 a form with the
- Section insulator 15 an isosceles triangle. With the boom 24 of the trolley mast 23 and supporting cables 11 are still connected to which by means of vertical ver ⁇ current suspension cables 25 contact wires 12 are suspended. The simplicity is drawn in FIG 2 to FIG 7 for a track only one contact wire 12. However, this is intended to symbolize two pa rallel ⁇ extending contact wires with different polarity. As already mentioned, two parallel DC cables may be used with different polarity under ⁇ at electrified-road transport systems for power supply. The carrying cables 11 form ge ⁇ Together with the suspension ropes 25 and the traction wires 12, a chain drive. The two contact wires 12 shown are separated from each other by the section insulator 15.
- FIG 3 is a plan view of the embodiment illustrated in FIG 2 arrangement 20 of a section insulator 15 is open in a curve ⁇ shows.
- a curve section of a roadway with two tracks can be seen schematically, with an overhead line being tensioned by way of example over a track 22.
- 24 support cables 11 are arranged on brackets on which by means of suspension cables 25 contact wires 12 are suspended.
- the the shown contact wires 12 are electrically separated from one another by the section insulator 15 already shown in FIG.
- the section separator 15 is also suspended from a boom 24.
- the contact wires 12 form for improved stabilization together with the support cables 11 and suspension cables 25 a skewed arrangement.
- the support cables 11 are arranged offset to arms of adjacent trolley masts in the transverse direction, so that a zigzag-shaped course of the support cables 11 results in the plan view.
- the contact wires 12 themselves are not arranged in a zigzag, but follow the course of the roadway 21, wherein they form chords of a running between two catenary masts curve section. It should be pointed out again in this connection that in the road-bound electrified systems usual two-pole arrangement two differently polarized contact wires are stretched parallel and this in inventive design therefore with additional, parallel second overhead lines to the in FIG to 7 shown contact wires, suspension cables and suspension cables parallel extending wires, support cables, and suspension cables are formed.
- FIG. 4 shows a perspective view of the arrangement 20 of a section insulator illustrated in FIG. 2 and FIG.
- FIG. 5 shows a plan view of a straight line section with a catenary.
- the track section comprises a carriageway 21 with two tracks, with a catenary being stretched over a track 22 by way of example.
- 24 support ⁇ ropes 11 are arranged on brackets on which by means of suspension cables 25 contact wires 12 are suspended.
- the contact wires 12 are stabilized for improved stabilization by a skewed arrangement of the overhead line.
- the supporting cables 11 are arranged offset on arms 24 of adjacent trolley masts in the transverse direction, so that a zigzag-shaped course of the supporting cables 11 results in the plan view.
- the contact wires 12 themselves are not arranged in a zigzag shape, but follow the course of the roadway 21, ie they also run straight ahead above the straight roadway 21.
- FIG 6 the arrangement shown in Figure 5 is 50 shown Perspecti ⁇ Visch.
- the support cables 11 are suspended from arms 24 of the trolley masts 23, wherein the suspension point in the transverse direction in Ausle ⁇ like 24 adjacent trolley masts 23 is different.
- side girders 26 are mounted on the trolley masts 23 to stabilize the contact wires 12 in the lateral direction.
- the skewed arrangement of the overhead line which is achieved in that the position of the suspension of the support cables 11 varies on the arms 24 in the transverse direction.
- An additional stabilization of the arrangement is achieved by contact wires 12 with smaller cross sections.
- reinforcing lines 27 are attached to the arms 24, which are at the attachment points with the support cables 11 of the catenary in electrical contact.
- FIG. 7 shows a plan view of a two-layer bracing 70 without parallel fields.
- an arrangement for tensioning contact wires 12a, 12b to be understood coming from the right first contact wire is guided away 12a on an arm 24b of a middle catenary mast diagonally outwardly to an arm 24a of a left upper line ⁇ masts of the track 21 and exhausted at the left upper ⁇ pylon.
- a coming from the left second gleichpoliger contact wire 12b is also on the boom 24b of the middle trolley mast diagonally outward led away, but in this case in the direction of a boom 24c of a right overhead mast.
- a coming in towards the vehicle first moves with contact to the second contact wire 12b to the point at which the arm 24b of the mitt ⁇ sized overhead line mast is located. Subsequently he drives WEI ter with contact to the first contact wire 12a to the right knows ⁇ ter.
- ⁇ ter In this arrangement can be dispensed with a parallel field, ie a parallel guide of the first and second gleichpoligen contact wire. In this way, the Lütole ⁇ tolerance of the pantographs can be reduced in the lateral direction, since the arrangement has no adjacent same-pole contact wires in the lateral direction.
- FIG. 8 shows a flow chart which illustrates a method for stabilizing a catenary system of a road-bound electrified transport system according to an exemplary embodiment of the invention.
- Step 8.1 are first warped Fahr Oberskonstruk ⁇ functions (see Figures 2 to 6) established both on straight runs and in curves. Trenner in curves existing route be positioned at arms of Ober effetten to keep as increased stability of the overhead line to it ⁇ . The use of skewed catenary structures is carried out without an extension of the mast distances. leads to improve the stability of the positioning of the contact wires.
- automated environmental circuit is an electrified vehicle furnished, wel ⁇ che the event is triggered by the pantograph of the electrified vehicle does not have a secure contact with the contact wire more.
- the automated switching can be carried out, for example, as a function of constantly updated measurement information . These can either directly include the existing current flow or also indirect measurement information, eg with regard to a wind speed or the like.
- step 8. III the suspension cables and contact wires are modified for better tensionability.
- the cross sections of the supporting cables and the contact wires are at their redu ⁇ selected materials in terms of improved tensile strength and optimized and exposed to the carrying cables and Fahrdräh ⁇ te a higher tensile stress, whereby the vulnerability of the arrangement against side wind is reduced.
- the mast ⁇ distances between the Ober einsmasten be reduced in a step 8. IV, which also reduces the influence of the crosswind on the travel ⁇ wires and carrying cables position.
- step 8.V additional electrical current-carrying reinforcing lines (see FIG. 6), which are routed to the trolley masts, are installed, with which the cross-sections of the supporting cables and contact wires, which respectively carry electric current, are reduced in step 8. III. be compensated.
- step 8 VI two-phase guying systems without parallel fields are implemented in the overhead contact line system.
- ⁇ situa- tion tolerance of two adjacent electrically homopolar contact wires is including their side movements reduced to the lateral position tolerance of a single contact wire.
- a necessary vertical and lateral tolerance range for the contact of a pantograph with the contact wires of a trolley system is greatly reduced.
- the restriction of the tolerance range makes it possible to reduce the requirements for adapting the pantograph to a position of the contact wires that is variable in the tolerance range. Consequently, the pantograph can be constructed in a simplified manner since fewer actuators can be used to cover the reduced tolerance range.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017202757 | 2017-02-21 | ||
| PCT/EP2018/052675 WO2018153638A1 (en) | 2017-02-21 | 2018-02-02 | Electrified road transport system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3568315A1 true EP3568315A1 (en) | 2019-11-20 |
Family
ID=61192904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18704493.8A Withdrawn EP3568315A1 (en) | 2017-02-21 | 2018-02-02 | Electrified road transport system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20200062143A1 (en) |
| EP (1) | EP3568315A1 (en) |
| CN (1) | CN110382288A (en) |
| WO (1) | WO2018153638A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115520067A (en) * | 2022-10-25 | 2022-12-27 | 厚泰(湖北)起重设备有限公司 | A curved power supply network structure with automatic compensation and leveling and its application |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US803215A (en) * | 1904-10-19 | 1905-10-31 | Westinghouse Electric Mfg Company | Overhead structure for electric railways. |
| GB293213A (en) * | 1927-08-06 | 1928-07-05 | Fritz Berg | Improvements relating to the suspension of the live wire of electric railways |
| GB612450A (en) * | 1943-02-22 | 1948-11-12 | Kummler & Matter Ag | Trolley wire system for electric tracks |
| GB1505083A (en) * | 1974-12-31 | 1978-03-22 | Bicc Ltd | Overhead electric traction systems |
| GB8502336D0 (en) * | 1985-01-30 | 1985-02-27 | Bicc Plc | Overhead electric traction system |
| US5124510A (en) * | 1990-08-16 | 1992-06-23 | Marvin Garfinkle | Tracking pantograph for railway electrification |
| DE102011080887A1 (en) | 2011-08-12 | 2013-02-14 | Siemens Aktiengesellschaft | System for operating an electric traction vehicle |
| US8757340B2 (en) * | 2012-05-15 | 2014-06-24 | Paul F. White | Vertical curve rail and method |
| CN104210385B (en) * | 2014-08-19 | 2016-09-07 | 吉林大学 | The omnidistance electric railway network system without negative phase-sequence interval unpowered net |
| CN104627027B (en) * | 2015-02-13 | 2016-08-31 | 宝鸡保德利电气设备有限责任公司 | DC750V~3kV flexible suspension section insulator |
| CN105196881B (en) * | 2015-10-15 | 2017-10-27 | 上海振华重工(集团)股份有限公司 | The electric energy switching system and method for straddle carrier |
-
2018
- 2018-02-02 US US16/487,650 patent/US20200062143A1/en not_active Abandoned
- 2018-02-02 EP EP18704493.8A patent/EP3568315A1/en not_active Withdrawn
- 2018-02-02 CN CN201880012584.0A patent/CN110382288A/en active Pending
- 2018-02-02 WO PCT/EP2018/052675 patent/WO2018153638A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018153638A1 (en) | 2018-08-30 |
| CN110382288A (en) | 2019-10-25 |
| US20200062143A1 (en) | 2020-02-27 |
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