EP4514648A1 - STRAßENFAHRZEUG MIT EINEM STROMABNEHMER - Google Patents
STRAßENFAHRZEUG MIT EINEM STROMABNEHMERInfo
- Publication number
- EP4514648A1 EP4514648A1 EP23734142.5A EP23734142A EP4514648A1 EP 4514648 A1 EP4514648 A1 EP 4514648A1 EP 23734142 A EP23734142 A EP 23734142A EP 4514648 A1 EP4514648 A1 EP 4514648A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch
- power
- threshold value
- voltage
- contact wire
- 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.)
- Pending
Links
Classifications
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- 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
- B60L3/04—Cutting off the power supply under fault conditions
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- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
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- 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
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- 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
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- 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
- B60L5/19—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire using arrangements for effecting collector movement transverse to the direction of vehicle motion
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- 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
- B60L5/26—Half pantographs, e.g. using counter rocking beams
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- 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
- B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
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- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/18—Controlling the braking effect
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- 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
- B60L9/00—Electric propulsion with power supply external to the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
- B60M3/02—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power with means for maintaining voltage within a predetermined range
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
- B60M3/06—Arrangements for consuming regenerative power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M7/00—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
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- 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
- B60L2200/00—Type of vehicles
- B60L2200/18—Buses
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- 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
- B60L2200/00—Type of vehicles
- B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
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- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/80—Time limits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in networks by storage of energy
- H02J3/32—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means
- H02J3/322—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
Definitions
- the invention relates to an electrically or hybrid-electrically driven road vehicle according to the preamble of patent claim 1.
- Such a road vehicle in particular a truck or a bus, includes an electric or hybrid-electric traction drive. It also includes a current collector for electrical power transmission by contacting contact wires of an electrical overhead line system.
- the overhead line system installed on the route side can be designed to be two-pole, i.e. have two contact wires designed as outward and return conductors, which run parallel to one another and above a lane of an electrified route section.
- Trackside substations supply feeder sections of the overhead line system with electrical contact wire voltage.
- power is fed from the overhead line system into the road vehicle in order to supply the traction drive with energy and, if necessary, to charge an energy storage device on the vehicle.
- power can also be fed back from the road vehicle into the overhead line system in order to release excess energy via the contact wires to the feed section in use.
- the contact wire voltage provided by the substation fluctuates around its nominal value depending on vehicle operation in a feed section.
- the contact wire voltage drops as the number of road vehicles driving on the feed section in traction mode increases.
- heavily trafficked stretches of road with an uphill road or with a clearing traffic jam pose challenges for the operator of the overhead line system with regard to load-dependent energy management.
- the international publication WO 2013/064447 A2 discloses a system for traffic control of electrically driven vehicles, which can be coupled to a catenary network arranged on the road side for energy transmission while driving.
- the contact line network has separately supplied feed sections with adjustable load limits.
- a load requirement in a feed section is determined from a recorded traffic and weather situation and from a course of the road inclination using a forecast model, which indicates the load capacity of a vehicle depending on its total weight, speed and acceleration under different road inclinations and weather situations.
- the predicted load requirement is evaluated with regard to the load limit of the feed section in order to select any necessary control interventions for influencing means in the form of vehicle devices arranged in the vehicle.
- the vehicle devices can be used to issue information to vehicle drivers to reduce load carrying as control interventions.
- control means select between the specification of a bypass route, a speed limit, an entry block, a starting instruction to clear traffic jams and a request to switch from electric to fuel drive, to switch the load absorption from the contact line network to a vehicle-mounted energy storage device or to feed energy back from a vehicle-mounted energy storage unit into the contact line network.
- an energy supply system for non-track-bound, electrically driven vehicles on a section of a road network includes an overhead line system with a contact line running above a lane of the route section and with a substation for supplying the contact line with electrical energy.
- the driving experience is can be contacted by the vehicle's current collector for power consumption.
- the overhead line system is designed with a load limit for the electrical power output on the route section.
- It also includes a communication system for the wireless transmission of driving instructions that limit electrical power consumption to vehicles traveling on the route section.
- the communication system has a trackside communication unit and vehicle-side communication units.
- the track-side communication unit can be designed as an RFID tag with a storage unit for driving instructions, with the vehicle-side communication unit being designed as an RFID reader, which is set up to wirelessly read out the stored driving instructions when the track-side communication unit passes.
- the trackside communication unit can also be used for the active transmission of driving instructions via dedicated short-range communication according to the IEEE 802 protocol. 11p
- the energy supply system also includes a control center that is set up to generate driving instructions for the route section and transmit them via the communication system.
- the control center is set up to provide the driving instructions dynamically depending on a current power requirement on the route section, on current operating data from the substation, on a current or predicted traffic density on the route section, on a vehicle class of vehicles traveling on the route section, on current weather data on the To generate a section of route and/or a current temperature of the contact line.
- the known systems are very complex in terms of the required information and central and vehicle-side devices in order to generate a driver message that reduces power consumption and to transmit this from a central unit to the vehicle device.
- the invention is therefore based on the object of providing a road vehicle of the type mentioned at the outset, with which traffic situations at risk of overload in a feeding section can be avoided.
- the invention is therefore based on an electrically or hybrid-electrically driven road vehicle, in particular a heavy commercial vehicle, which comprises a current collector for electrical power transmission by contacting contact wires of an electrical overhead line system carrying an electrical contact wire voltage.
- a traction operation power is fed in from the overhead line system and in a recuperation operation, power is fed back into the overhead line system.
- the road vehicle further comprises a measuring device for detecting the current contact wire voltage and a control device connected to this for switching the power transmission on and off.
- the control unit is designed to switch off the power supply when the contact wire voltage falls below a lower threshold value and to switch it on again after a randomly selected switch-on delay has elapsed when the lower threshold value is exceeded.
- the control device switches off the power transmission to the road vehicle in order to prevent an overload situation in the busy supply section.
- the contact wire voltage can then increase again, so that the power feed could be switched on again once the lower threshold value is exceeded.
- a switch-on delay is randomly selected in each control unit and the power is only fed in afterwards Expiration of the switch-on delay is switched on again. Due to the random selection of the switch-on delay, the switch-on times between the road vehicles in contact with the contact wires are also randomly distributed. As a result, the power consumption by these road vehicles is evened out, which means that an overload in the feed section can be avoided.
- only vehicle-side equipment is required and communication with a control center of the overhead line system is not necessary.
- the control device is designed to randomly select a first time period from a predefinable first time window as a switch-on delay and to switch the power feed on again when the first time period has expired once the lower threshold value of the contact wire voltage has been exceeded.
- a time window is specified for the switch-on delay, within which a first time period is randomly selected, for example using a random generator.
- the power feed of the road vehicles driving in a feeding section is switched on again after the first period of time specifically selected for each road vehicle has elapsed.
- the random distribution of the first time periods softens the resumed power consumption so that undesirable load peaks can be avoided.
- the time window can either be permanently parameterized or specified depending on a typical traffic density or a typical load reference for a feed section. The greater the load requirement in the feed section, the larger the time window is chosen in order to be able to spread out the switching on of the power feed in the road vehicles.
- the control device is designed to randomly select a first voltage value from a predeterminable first voltage range as a switch-on delay and to switch the power supply on again, when the contact wire voltage, which increases again once the lower threshold value is exceeded, has reached the first voltage value.
- a first voltage range is specified for the switch-on delay, within which a first voltage value is randomly selected, for example using a random generator.
- the power feed of the road vehicles driving in a feed section is switched on again after the first voltage value specially selected for each road vehicle has been reached.
- the random distribution of the first voltage values softens the resumed power consumption so that undesirable load peaks can be avoided.
- the first voltage range can either be permanently parameterized or specified depending on a typical traffic density or a typical load reference for a feed section. The greater the load requirement in the feed section, the larger the first voltage range is chosen in order to be able to spread out the switching on of the power feed in the road vehicles.
- the control device is designed to switch off the power feed when the contact wire voltage falls below the lower threshold value after a randomly selected switch-off delay has elapsed.
- the load reference in the feed section cannot be throttled abruptly for all road vehicles at the same time, but rather in a distributed manner over the switch-off delay, which can be implemented via randomly generated times or voltage values as described above.
- the control unit is designed to switch off the power recovery when an upper threshold value of the contact wire voltage is exceeded and to switch it off after the contact wire voltage falls below the upper threshold value. a randomly selected switch-on delay. If the measuring device detects an increase in the contact wire voltage to a value above the upper threshold value, the control unit switches off the power transmission from the road vehicle in order to prevent a further increase in the contact wire voltage in the busy feed section. The contact wire voltage can then drop again, so that the power recovery could be switched on again once the upper threshold value is undershot.
- the control device is designed to randomly select a second time period from a predeterminable second time window as a switch-on delay and to switch the power feedback back on again when the second time period has expired when the contact wire voltage falls below the upper threshold value .
- a second time window is specified for the switch-on delay, within which a second time period is randomly selected, for example using a random generator.
- the power recovery of the road vehicles driving in a feeding section is switched on again after the second time period specifically selected for each road vehicle has expired. Due to the random distribution of the second time periods, the The power output is softened so that unwanted voltage peaks can be avoided.
- the second time window can either be permanently parameterized or specified depending on a typical traffic density or a typical load output for a feed section. The greater the load output in the feed section, the larger the second time window is chosen in order to be able to spread out the switching on of the power recovery in the road vehicles.
- the control device is designed to randomly select a second voltage value from a predefinable second voltage range as a switch-on delay and to switch the power feedback back on again when the contact wire voltage, which drops again after falling below the upper threshold value, has reached the second voltage value.
- a second voltage range is specified for the switch-on delay, within which a second voltage value is randomly selected, for example using a random generator.
- the power recovery of the road vehicles driving in a feed section is switched on again after the second voltage value specially selected for each road vehicle has been reached.
- the random distribution of the second voltage values softens the resumed power output so that undesirable voltage peaks in the contact wires can be avoided.
- the second voltage range can either be permanently parameterized or specified depending on a typical traffic density or a typical load output for a feed section. The greater the load output in the supply section, the larger the second voltage range is chosen in order to be able to spread out the switching on of the power recovery in the road vehicles.
- control unit is designed to regenerate power when the above limit is exceeded. ren threshold value of the contact wire voltage after a randomly selected switch-off delay has elapsed. In this way, if an overload-related increase in the contact wire voltage occurs above the upper threshold value, the load delivery in the feed section cannot be ramped up abruptly for all road vehicles at the same time, but rather in a distributed manner over the switch-off delay, which can be implemented via randomly generated times or voltage values as described above.
- FIG. 1 shows an exemplary embodiment of a road vehicle according to the invention
- FIG. 2 shows a voltage-power diagram for the road vehicle from FIG. 1 schematically illustrated.
- a road vehicle 10 for example a heavy commercial vehicle, with an electric or hybrid-electric traction drive 11, is supplied with electrical energy on a section S of a road network from an electrical overhead line system 20 installed on the route side.
- an electrical overhead line system 20 installed on the route side.
- a right lane L of a multi-lane highway can be electrified by two contact wires 21 designed as outward and return conductors being suspended along the lane L parallel to one another and above the lane level.
- a substation 22 provides a contact wire voltage U applied to the contact wires 21.
- the road vehicle 10 has a current collector 12, which can include, for example, a pantograph-like support frame and two contact rockers with contact strips supported thereon.
- the loops are stopped strips of the pantograph 12 with the respective contact wires 21 of the overhead line system 20 in electrical sliding contact.
- the overhead line system 11 is designed with load limits for electrical power transmission on section S.
- the contact wire voltage U varies depending on the number of road vehicles 10 connected to the overhead line system 20 in the feed section, in particular depending on the number of road vehicles 10 traveling in traction mode and the number of road vehicles 10 traveling in recuperation mode, as well as the vehicle-specific power transmission of each individual road vehicle 10.
- electrical power P between a road vehicle 10 and the overhead line system 20 can only be within a value range [Ul; U2] of the contact wire voltage U are transmitted.
- a power supply in a traction operation of the road vehicle 10 is not possible below a lower threshold value Ul of the contact wire voltage U;
- power recovery in a recuperation operation of the road vehicle 10 is not possible above an upper threshold value U2 of the contact wire voltage U.
- Maximum power Pmax is within a value range [U3 ; U4 ] of the contact wire voltage U transmitted, which is within the value range [Ul ; defined by the lower threshold value Ul and upper threshold value U2 U2] is located.
- the power feed is throttled at a contact wire voltage U3 and switched off at the lower threshold value Ul.
- the power recovery is throttled at a contact wire voltage U4 and switched off at the upper threshold value U2.
- the road vehicle 10 includes a measuring device 13 for detecting the currently applied contact wire voltage U and a control device 14 connected to this for switching the power transmission on and off, which is designed to control the power feed when the contact wire voltage U falls below the lower threshold value Ul to be switched off when the upper threshold value U2 of the contact wire voltage U is exceeded.
- the control device 14 is designed to switch on the power feed that was switched off after the contact wire voltage U falls below the lower threshold value Ul when the lower threshold value Ul is exceeded after a randomly selected switch-on delay has elapsed.
- the control device 14 can be designed to randomly select a first time period from a predeterminable first time window as a switch-on delay and to switch the power feed on again when the first time period has expired once the lower threshold value Ul of the contact wire voltage U has been exceeded.
- the control device 14 can also be designed to randomly select a first voltage value from a predeterminable first voltage range as a switch-on delay and to switch the power supply on again when the contact wire voltage U, which increases again after the lower threshold value Ul is exceeded, has reached the first voltage value.
- the first time window or the first voltage range, within which the first time period or the first voltage value is randomly selected using a random generator, can either be permanently parameterized or be specified depending on a typical traffic density or a typical load reference for a feed section. The greater the load requirement in the feed section, the larger the first time window or the first voltage range is selected in order to be able to spread out the switching on of the power feed in the road vehicles 10.
- the control unit 14 can also be designed to switch off the power feed when the contact wire voltage U falls below the lower threshold value Ul after a randomly selected switch-off delay has elapsed. In this way, if an overload-related drop in the contact wire voltage U occurs below the lower threshold value Ul, the load reference in the feed section cannot be throttled abruptly for all road vehicles at the same time, but rather over the switch-off delay, which can be implemented via randomly generated times or voltage values as described above .
- control unit 14 can be designed to switch off the power feedback when the upper threshold value U2 of the contact wire voltage U is exceeded and to switch it on again when the upper threshold value U2 is undershot after a randomly selected switch-on delay has elapsed. If the measuring device 13 detects an increase in the contact wire voltage U to a value above the upper threshold value U2, the control device 14 switches off the power transmission from the road vehicle 10 in order to prevent a further increase in the contact wire voltage U in the busy feed section. The contact wire voltage U can then drop again, so that the power recovery could be switched on again when the upper threshold value U2 is undershot.
- a switch-on delay is randomly selected in each control unit 14 and the power recovery is only switched on again after the switch-on delay has expired. Due to the random selection of the switch-on delay, the switch-on times between the road vehicles 10 in contact with the contact wires 21 are also distributed randomly. As a result, the power output by these road vehicles 10 is evened out, whereby a rapid rise in the contact wire voltage U in the feed section can be avoided.
- the control unit 14 for recuperation operation can be designed to randomly select a second time period from a predeterminable second time window or a second voltage value from a second voltage range as a switch-on delay and to switch the power recovery back on when the contact wire voltage falls below the upper threshold value U2 U the second time period has expired or the contact wire voltage U has reached the second voltage value.
- the second time window or the second voltage range, within which the second time period or the second voltage value is randomly selected using a random generator can either be permanently parameterized or specified depending on a typical traffic density or a typical load reference for a feed section. The greater the load output in the feed section, the larger the second time window or the second voltage range is selected in order to be able to spread out the switching on of the power feedback from the road vehicles 10.
- the control unit 14 can also be designed to switch off the power recovery when the upper threshold value U2 of the contact wire voltage U is exceeded after a randomly selected switch-off delay has elapsed. In this way, if an overload-related increase in the contact wire voltage U above the upper threshold value U2 occurs, the load delivery in the feed section cannot be carried out abruptly for all road vehicles 10 at the same time, but rather via the switch-off delay, which, as described above, is carried out via randomly generated times or voltages. voltage values can be implemented, can be started up in a distributed manner.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022207864.0A DE102022207864A1 (de) | 2022-07-29 | 2022-07-29 | Straßenfahrzeug mit einem Stromabnehmer |
| PCT/EP2023/065233 WO2024022660A1 (de) | 2022-07-29 | 2023-06-07 | STRAßENFAHRZEUG MIT EINEM STROMABNEHMER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4514648A1 true EP4514648A1 (de) | 2025-03-05 |
Family
ID=87047804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23734142.5A Pending EP4514648A1 (de) | 2022-07-29 | 2023-06-07 | STRAßENFAHRZEUG MIT EINEM STROMABNEHMER |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4514648A1 (de) |
| CN (1) | CN119562906A (de) |
| DE (1) | DE102022207864A1 (de) |
| WO (1) | WO2024022660A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012016148A (ja) * | 2010-06-30 | 2012-01-19 | Mitsubishi Heavy Ind Ltd | シミュレーション装置及びシミュレーション方法並びにそのプログラム、架線交通システム |
| DE102011085776A1 (de) | 2011-11-04 | 2013-05-08 | Siemens Aktiengesellschaft | System zur Verkehrssteuerung elektrisch getriebener Fahrzeuge in einem Straßennetz |
| JP5868836B2 (ja) * | 2012-12-19 | 2016-02-24 | 三菱重工業株式会社 | 充放電制御装置、充放電制御方法、プログラム及び車両交通システム |
| JP6382760B2 (ja) * | 2015-03-27 | 2018-08-29 | 株式会社日立製作所 | 駆動システム及び電気車両 |
| EP3756931A1 (de) | 2019-06-28 | 2020-12-30 | Siemens Mobility GmbH | Energieversorgungssystem für nicht spurgebundene, elektrisch angetriebene fahrzeuge |
| CN114714924A (zh) * | 2022-04-11 | 2022-07-08 | 中国水利水电第八工程局有限公司 | 一种纯电动矿用卡车双源供电系统、矿用卡车及应用方法 |
-
2022
- 2022-07-29 DE DE102022207864.0A patent/DE102022207864A1/de not_active Withdrawn
-
2023
- 2023-06-07 EP EP23734142.5A patent/EP4514648A1/de active Pending
- 2023-06-07 CN CN202380055909.4A patent/CN119562906A/zh active Pending
- 2023-06-07 WO PCT/EP2023/065233 patent/WO2024022660A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN119562906A (zh) | 2025-03-04 |
| DE102022207864A1 (de) | 2024-02-01 |
| WO2024022660A1 (de) | 2024-02-01 |
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