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WO/2005/110802A1 |
An electric vehicle control device which functions as follows. A maximum frequency and a minimum frequency are extracted from frequencies corresponding to respective axle speeds. A first frequency deviation is obtained by subtracting the...
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WO/2005/077703A1 |
The aim of the invention is to provide a DC powered electric drive system (1) wherein the voltage tolerances can be compensated for without forfeiting driving performance. The electric drive system (1) according to the invention therefor...
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WO/2005/076462A1 |
An electrically driven vehicle having a rotating electric machine small-sized and whose power generating characteristics and torque output characteristics can be changed and set to those appropriate for a vehicle condition. The electrica...
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WO/2005/050678A1 |
A traction transformer with two traction windings comprises a pair of core legs 1, 2 each wound with a pair of primary windings 11, 12, a pair of traction windings 21, 22 and a pair of filter windings 31, 32 therebetween. The filter wind...
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WO/2005/025923A1 |
A vehicle, comprising a motor and a controller controlling the torque of the motor. The controller selects one of phase temperatures detected based on current phases Ѳ (steps 200 to 218), and when the vehicle comes in a stall state and ...
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WO/2005/022731A2 |
A method for transferring electric power from a primary side (5) to a secondary side (6) of a converter (11) and/or vice versa, in particular for the purpose of delivering electric power to a high power application such as to a driving m...
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WO/2005/012026A1 |
A vehicle is equipped with a motor that receives a supply of electric power, which is output from a battery and is boosted up by a DC/DC converter circuit, via an inverter circuit and outputs a torque to a drive shaft. In response to an ...
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WO/2005/013471A1 |
In a case where the deviation between a target voltage (Vdc_com1) and an output voltage (Vm) is larger than a specified value (A), a voltage command (Vdc_com2) of a voltage step-up converter (12) is calculated by adding the specified val...
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WO/2004/114511A2 |
A control device (30) receives power source current (Ib) from a current sensor (11) and reactor current (IL) from a current sensor (18). According to the reactor current (IL), the control device (30) detects a maximum value (ILmax) and a...
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WO/2004/110805A1 |
The invention relates to a transport system. Said transport system comprises a conductor system which is connected to at least one supply conductor connected to an energy source, also comprising at least one transport carriage which can ...
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WO/2004/109899A1 |
A voltage conversion device includes a forward direction conversion circuit for converting an input voltage from a DC power source into a desired output voltage by adjusting the duty ratio of semiconductor element switching. Moreover, th...
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WO/2004/094178A1 |
The present invention is concerned with a traction transformer with an interface unit (5) comprising dedicated processor means (50) for monitoring an operating status of the transformer without unduly transmitting data to a train contr...
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WO/2004/085187A1 |
A personal vehicle for transporting a user over a surface including an external combustion engine. The vehicle includes a generator for converting the mechanical energy produced by the external combustion engine to electrical energy and ...
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WO/2004/082109A1 |
The invention relates to an arrangement (1) for transferring electric power from a power source in particular to a driving motor of a railroad vehicle. The arrangement comprises a direct current intermediate circuit (9) with two direct c...
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WO/2004/065159A1 |
An arrangement for providing electric power to a vehicle (1) from an AC-supply line (2) through a pantograph (3) of the vehicle in contact with the supply line when the vehicle is moving therealong comprises a transformer (5) connected t...
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WO/2004/064235A2 |
A control device (30) detects whether or not an up-converter (12) fails, based on a DC voltage (Vb) from a voltage sensor (10), an output voltage (Vm) from a voltage sensor (13), and a duty ratio in controlling switching of NPN transisto...
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WO/2004/028852A1 |
A driver of electric automobile in which the drive wheel of the electric automobile can be selected accurately depending on the road conditions. In an electric automobile having four or more wheels, all wheels (1-4) are fixed with drive ...
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WO/2004/002771A1 |
The number of electrical devices implemented in motor vehicles and supplied with electricity by the motor vehicle accumulator rises with each generation. The manufacturers of motor vehicles make great demands on electrical device to be b...
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WO/2003/072388A1 |
A control system for individually controlling power from a single voltage source to a plurality of motors is described. A chopper circuit, in conjunction with the control system, generates drive−pulses, which operates the IGBT switchin...
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WO/2003/066368A1 |
Electrically driven local and regional means of passenger transport are as a rule supplied with energy by external electric supply networks. If said external energy supply fails, vehicles (1) of this type require special auxiliary device...
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WO/2003/056687A1 |
A motor control unit cooling device, comprising a heat sink (H) in contact with the module of a unit, continuous recessed parts formed in the heat sink, and a wall member (22) fixed to the heat sink by installing on the open surface side...
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WO/2003/047904A1 |
The present invention provides a DC variable main circuit system used for a railway vehicle, which flexibly copes with railway systems and feeding modes with individual characteristics of various countries in the operation of a long-dist...
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WO/2003/031218A1 |
The invention relates to an electric motor (10) which is coupled to an internal combustion engine in a motor vehicle. A control unit (11) is provided for setting an operating state (Bw) which is optimum in terms of efficiency, for the el...
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WO/2003/018346A1 |
The invention concerns an installation constituting a railway propulsion chain, characterized in that it comprises, sequentially arranged, in the power electrical circuit, between a power transformer powered by a catenary and an electric...
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WO/2002/071593A1 |
The invention relates to a circuit arrangement for supplying a direct current machine, comprising an armature winding (14) and a field winding (11). According to the invention, the field winding (14) is connected to a phase (7) of the sa...
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WO/2002/051662A1 |
The invention relates to an electric energy supply system for a train or several trains (1), comprising drive units (2) for a first voltage system with a predetermined voltage form and voltage level, whereby at least one separate energy ...
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WO/2002/006076A1 |
The invention relates to a method for the sensorless drive control of an electric vehicle (1), especially an industrial truck, driven by a rotating field motor (3) which is operated by a power converter (10), said power converter being s...
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WO/2001/098104A1 |
The invention relates to a device for supplying electrical energy to rail vehicles. An alternating-current supply (1) is thus connected to a rectifier (3a). A connection (4) for a rail vehicle is arranged after the rectifier (3a). Severa...
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WO/2001/065100A2 |
An auxiliary power system (100) for providing electrical power and heat to an indoor area includes an external combustion engine (101), such as a Stirling cycle engine (101), for generating mechanical energy and thermal energy. The exter...
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WO/2001/003965A1 |
In order to minimize the energy required for operating a rail vehicle, the intermediate circuit voltage in the intermediate circuit (12) and/or the magnetic flux in the drive motor (7) is/are optimized, according to the actual operationa...
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WO/2000/051839A1 |
The invention relates to a transformerless supply circuit, especially for rail vehicles. According to the invention, a plurality of line-side converters (1, 2, 3) is arranged which each have a line-side four-quadrant controller (11, 21, ...
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WO/2000/050285A1 |
The aim of the invention is to provide a method for transmitting data via a traction control which also carries driving current for a vehicle. According to the inventive method, interruption of the data transmission caused by an electric...
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WO/2000/021187A1 |
The invention relates to an arrangement, whereby the components of a multiphase converter consisting of semiconductor power components (10, 11) and a capacitor (7) on a support (1) containing cooling devices are arranged in an optimum co...
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WO/2000/015456A1 |
A method for monitoring a filter (4) that is mounted upstream from a useful electric circuit (1), comprising filter components (6, 7) with a filter characteristic (C, L). When the useful circuit (1) is in operation, one time characterist...
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WO/2000/000991A1 |
The invention concerns a unit for electrically supplying a load, in particular to a transformer (8), from a power source (10), via a switching electrical apparatus (14), in particular a circuit breaker, and comprising a device (16) for a...
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WO/1999/067104A1 |
The invention relates to a method for regulating a three-phase electrical motor, especially an asynchronous motor with a short-circuit rotor, means for determining the number of revolutions of the electrical motor and the torque required...
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WO/1999/029019A1 |
A three-phase traction motor, or a transformer or rotating convertor in a drive system for a traction motor, comprises a winding including insulation consisting of at least two semiconducting layers (32, 34) each providing a substantiall...
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WO/1998/053551A1 |
The invention relates to a method for controlling an asynchronous machine, which is operated below a cut-off frequency in the basic rotation speed range with a variable magnetization current and above the cut-off frequency in the field w...
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WO/1998/051552A2 |
The present invention pertains to the field of transportation and relates to electric actuators for vehicles which are supplied from a DC circuit. This invention may be used for electric actuators in electrical load-lifting devices such ...
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WO/1998/043848A1 |
A PWM converter control apparatus is capable of simply reducing the higher harmonics of an electric rolling stock formation unit without strictly setting the zero-phase detection tolerance of a reference signal. The control apparatus is ...
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WO/1998/043343A1 |
The invention relates to a circuit, wherein a power converter (1) of a motor is connected to a power supply network via its input connectors (2, 3) and in which at least one network condenser (C�N?) is parallel connected to the power c...
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WO/1998/007166A1 |
A method and apparatus for powering a high power load (44) (on the order of 50,000 watts or more) can have an input from any of a plurality of different voltage sources, AC or DC. In one embodiment, the AC sources can have a frequency in...
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WO/1997/047492A1 |
In a frequency converter whose line power converter can be connected to either direct current, or single-phase alternating current, the primary winding of a transformer (T) that has two secondary windings is connected to the a.c. voltage...
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WO/1997/038768A1 |
A monorail vehicle used for material handling purposes comprises a number of cars which run on a track (13). The cars are linked together in one or more trains and each train has a master car (20) and several slave cars (19). An embedded...
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WO/1997/038873A1 |
The invention relates to a high voltage power converter system which is usable, for example, in a drive system (1) for rail vehicles. The current rectifier system (2) comprises a plurality of partial rectifier systems (2,1 to 2.n) for th...
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WO/1997/033766A1 |
Rail vehicles which can be used in different countries have to derive their motive power from direct-current (1) and alternating-current supply lines (12) of varying supply voltage. A multi-system design is proposed which is suitable for...
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WO/1997/031798A1 |
A regulator device is proposed for an asynchronous machine (11), in particular used as a drive for electric vehicles. The regulator device has an incremental setter (16) for the rotational speed of the asynchronous machine (11) and a rot...
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WO/1997/013653A1 |
A wheel slip recovery method for a locomotive in which an internal combustion engine is connected in driving relationship to an electric power generator to supply electric power to a plurality of electric traction motors coupled to drive...
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WO/1997/013315A1 |
The invention pertains to a low-loss power current inverter. According to the invention, each current inverter phase (2) comprises an upper and a lower bridge half (6, 8) each of which contains two power semiconductor switches (T1, T2 an...
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WO/1997/003493A1 |
An electric power converter for an AC electric vehicle which is connected at an AC side portion thereof to an AC stringing via a transformer (2), and at a DC side portion thereof to a controller (3) for an electric vehicle driving motor,...
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