Abb Technology Ag

Asea Brown Boveri Ab

Elways Ab

Abb Ab

Abb Technology Ltd

Asea Aktiebolag

Abb Research Ltd.

Asea Brown Boveri Inc.

Abb Schweiz Ag

Bluvein Innovation Pty. Ltd.

Gunnar Asplund

Björn Jacobson

Krister Nyberg

Peter Lundberg

Bo Bijlenga

Olle Ekwall

Henrik Breder

Kjell Eriksson

Jurgen Häfner

Urban Åström

Urban Strom

Urban &angst;str&ouml;m

Hans Bj&ouml;rklund

Anders Aberg

Roland Siljestr&ouml;m

Tomas Lars Jonsson

Lars-Erik Lennart Juhlin

Jan Svensson

Staffan Norrga

Lennart Harnefors

Hans Björklund

Willy Hermansson

Didier Cottet

Stefan Linder

Roland Siljeström

Mats Hyttinen

Jan Lundquist

Lars Döfnäs

Carl E Solver

Gunnar Flisberg

Urban Astrom

Bjorn Sandin

Johan Lindberg

Victor Lescale

Erik Koldby

Lars Weimers

Olof Heyman

Rolf Pålsson

Lars Eklund

Bernt Stlund

Anders J Pettersson

Olaf Saksvik

Anders &angst;berg

Christer Ovr&eacute;n

Bo Danielsson

Dan Karlsson

Ying Jiang Häfner

Niklas Johansson

Fotis Stergiopoulos

A contact device () directly or indirectly connectable to a vehicle and adapted to co-act mechanically and electrically with a track () comprising an electric conductor () put under voltage and located in a road section () on which the vehicle is travelling, in order to supply electric voltage to at least one electric motor which propels the vehicle, wherein the contact device () is displaceable upwards, downwards and laterally and comprises at least one current collector and at least one cleansing device (). The current collector () comprises a sliding contact () configured to be brought into mechanical and electrical contact with at least a vertical side wall portion of the track.

Weatherproof track and contact for electrical feeding of road vehicles

A high voltage DC breaker apparatus configured to break a fault current occurring in a high voltage DC conductor includes a current limiting arrangement having at least one section with at least one semiconductor device of turn-off type and at least one arrester connected in parallel therewith, and a mechanical DC breaker connected in series with the current limiting arrangement and including a mechanical switch. The mechanical DC breaker is configured to enable breaking of a fault current in said DC conductor once said semiconductor devices of said arrangement have been turned off.

High voltage DC breaker apparatus

Contact means () related to a vehicle are adapted to comprise an elongated arm (), one end portion () of which is rotatably attached to the underside (bottom) of the vehicle () and the other end portion () of which is adapted to support said contact means (). One or more sensors () are disposed at the vehicle () and are intended to be able to sense the presence of and the orientation of a track or groove () and transfer sensed information to a power control circuit (), which is adapted to comprise a control circuit (), which when sensing the existence of and a sensed orientation of a track or groove (), within a covered and restricted area, is to be adapted to actuate means () adapted to a sidewise movement and/or a lowering (or raising) movement at the contact means ().

System adapted for one or more electrically propellable vehicles (arm-shaped contact means)

The present invention has its application to a vehicle-related arm-shaped contact means (()) related to a contact means arrangement as a current collector or system ('S') for propelling an electrically, i.a. by batteries ('II', B), propellable vehicle () along a roadway () comprising &#x201c;a&#x201d; a plurality of roadway portions (), wherein said road portions are allotted at least one track or slit (), having introduced therein current supplyable conductors (), and &#x201c;b&#x201d; one or more powerable vehicles (), with each vehicle exhibiting a control circuit (, &#x201c;R&#x201d;) adapted for necessary distribution of power, wherein said vehicle () is on its underneath side provided with a displaceable contact means (()) as said current collectors. Said current collector (') is shaped as a main portion (), made of an electrically insulating material, and having a lower surface () facing towards the contact surface (&#x2032;) being shaped flat, and having a lower contact surface () consisting of an electrically conductive material (). The electrically conductive material () is adapted to extend through the main portion () for forming one or more upper contact surfaces () and/or connecting conductors ().

System adapted for one or more electrically propellable vehicles (contact means)

A detector arrangement related to a contact device in a system for driving an electrically propellable vehicle along a roadway. The system comprises a plurality of road sections subdividing the roadway, each one connected to one or more electric stations for charging a set of batteries of the vehicle and/or supplying the necessary power and energy for driving the vehicle forward. The contact device comprises displaceable current collectors disposed underneath the vehicle, which are moveable up and down and sideways. The current collectors are coordinated with control equipment to bring the current collector into mechanical and electrical contact with conducting rails arranged in a track in the roadway. The detector arrangement comprises one or more coils and is adapted to sense the variation of a magnetic field generated by additional electrical conductors disposed in the track.

System adapted for one or more electrically propellable vehicles (detector arrangement)

A semiconductor power module includes at least two sub modules. The sub modules include at least one respective transistor having a collector, an emitter, and a gate. The module includes a connection arrangement having a collector terminal unit for connecting the collectors of the at least two sub modules collectively to external circuit components, at least two emitter terminal units for connecting the respective emitters of the at least two sub modules individually to external circuit components, and at least two gate terminal units for connecting the respective gates of the at least two sub modules individually to external circuit components.

Connection arrangement for semiconductor power modules

A snow plough arrangement comprising a least one snow plough unit and related to a system for driving an electrically propellable vehicle along a roadway. The vehicle has three sources of power: a vehicle-related power generator, a set of batteries and vehicle-external electric stations. The vehicle is provided with a current collector which is displaceable up and down and sideways in relation to the direction of transportation, in order to be brought into mechanical and electrical contact with elongated tracks positioned below the roadway and comprising a conductor adapted to be connected with an electric station. The snow plough unit is rotatably fastened to the contact means in an upper area thereof about a horizontally oriented axis of rotation and adapted to clear loose obstacles from the track and yield to solid obstacles. The snow plough unit and the axis of rotation are movably disposed in a vertical direction by means of a resilient member. The snow plough unit comprises a forwardly directed edge portion oriented in the direction of travel, the edge portion comprising a point, which may be brought into contact with the bottom of the track and/or the conductor.

System adapted for one or more electrically propellable vehicles (a snow plough arrangement)

A plant for transmitting electric power through HVDC includes two converter stations interconnected by a monopolar direct voltage network and each having an alternating voltage side for feeding electric power from one of said alternating voltage sides to the other. Each station has a line commutated converter. The plant is upgraded by making the direct voltage network bipolar, providing each station with a Voltage Source Converter and providing two switches for both line commutated converters or both Voltage Source Converters and a device configured to control said four switches.

Method of upgrading a plant for transmitting electric power and such a plant

A vehicle-related system adapted for electrically driving a vehicle along a road-way. The vehicle has three sources of power: a vehicle-related power generator, a set of batteries and vehicle-external electric stations. The vehicle is provided with a current collector which is displaceable up and down and sideways in relation to the direction of transportation, in order to be brought into mechanical and electrical contact with elongated tracks positioned below the roadway and comprising a conductor adapted to be connected with an electric station. A circuit, determining instantaneous power content of the set of batteries, is adapted to connect the vehicle-external power source via a switch belonging to the electric station, in order to charge the set of batteries and/or to supply power to the vehicle motor via a control circuit, when the power content of the set of batteries is at a predetermined level of power, lying below a maximum power content, and a supply of power or voltage from the vehicle-external power source is available.

System adapted for one or more electrically propellable vehicles (battery charging arrangement)

A cleaning means related to a vehicle-related system for driving an electrically propellable vehicle along a roadway. The vehicle has three sources of power: a vehicle-related power generator, a set of batteries and vehicle-external electric stations. The vehicle is provided with a current collector which is displaceable up and down and sideways in relation to the direction of transportation, in order to be brought into mechanical and electrical contact with elongated tracks positioned below the roadway and comprising a conductor adapted to be connected with an electric station. The cleaning means is rotatably fastened in an upper area thereof about a horizontally oriented axis of rotation and adapted to clean the track from loose obstacles and/or yield to solid obstacles. The cleaning means and the axis of rotation are movably disposed in vertical direction by means of a resilient member. The cleaning comprises a forwardly directed edge portion oriented in the direction of travel, the edge portion comprising a point which may be brought into contact with the track and the conductor.

System adapted for one or more electrically propellable vehicles (cleansing means)

A high voltage DC switchyard comprises at least one busbar, at lest two DC lines connected to said at least one busbar through DC breakers comprising a section of at least one semiconductor device of turn-off type and rectifying member in anti-parallel therewith. At least one said DC line is connected to at least one said busbar through a unidirectional said DC breaker, i.e. a DC breaker that may only block current therethrough in one direction.

High voltage DC switchyard with semiconductor switches

The present invention has its application to a system for driving an electric and by one or more batteries powered vehicle along a roadway, comprising 'a' one or more vehicles, which may be driven by an individual electric motor or motors and where in the respective vehicles exhibit a power-controlling control circuit for creating the necessary power and/or speed control and wherein required power i.a. can be provided primarily by a chargeable can be provided primarily by a chargeable battery set associated with the vehicle and 'b' a plurality of road sections road portions divisible for the roadway, each being allotted one or more vehicle external electric stations for charging the battery set thereby and/or for supplying necessary power and energy for driving the vehicle. The underneath side of the mentioned vehicle is provided with a contact means displaceably positioned up and down and sideways, counted in the direction of transportation. Said roadway and its road sections or portions exhibits an elongated track or groove, each road section is supporting two rails in the groove and disposed under the driving path of the road section or portion. The rails being supplied with current and voltage. Said contact means is coordinated with a control equipment for creating simple adaptation of the contact means for registering the contact means for mechanical and electrical contact against said two rails.

System adapted for one or more vehicles, which may be driven forward electrically

An arrangement for overload restriction associated with a system adapted for electrically driving a vehicle along a roadway. The vehicle is provided with a current collector, which is displaceable up and down and sideways in relation to the direction of transportation, in order to be brought into mechanical and electrical contact with elongated tracks positioned below the roadway and comprising a conductor adapted to be supplied with current and put under voltage. The arrangement comprises a circuit for limiting the momentary power outlet connected to said vehicle-external power source and being adapted to supply power to said conductor within the roadway section via said switch when the vehicle passes.

Overload restriction in system for electrical vehicles

An arrangement adapted for letting water pass by electrical conductors and their contact surfaces related to a track of a system adapted for electrically driving a vehicle along a roadway. The vehicle is provided with a current collector which is displaceable up and down and sideways in relation to the direction of transportation, in order to be brought into mechanical and electrical contact with elongated tracks positioned below the roadway and comprising a conductor adapted to be supplied with current and put under voltage. At least two or three tracks are disposed parallel to each other in a common rail structure, with at least two of these tracks being adapted to support and contain individual electrical conductors with contact surfaces put under voltage, and wherein at least one track is disposed closer to the highest point of the roadway and adjacent to a track containing one of said conductors with contact surfaces, which may be put under voltage.

System adapted for one or more electrically propellable vehicles (letting water pass by electrical conductors)

An arrangement for metal detection related to a system adapted for electrically driving a vehicle along a roadway. The vehicle is provided with a current collector which is displaceable up and down and sideways in relation to the direction of transportation, in order to be brought into mechanical and electrical contact with elongated tracks positioned below the roadway and comprising a conductor adapted to be supplied with current and put under voltage. The detecting arrangement, comprises one or more coils arranged for sensing the variation of the magnetic field, based on a horizontal and/or vertical distance between the coils and metal parts belonging to the one or more elongated tracks.

System adapted for one or more electrically propellable vehicles (arrangement for metal detection)

Growing community of inventors

Solna, Sweden

Gunnar Asplund