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ethods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train (B60L15)

B
Performing operations; transporting
(52879)
B60
Vehicles in general
(5127)
B60L
Propulsion of electrically-propelled vehicles (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles b60k0001000000, b60k0006200000; arrangements or mounting of electrical gearing in vehicles b60k0017120000, b60k0017140000; preventing wheel slip by reducing power in rail vehicles b61c0015080000; dynamo-electric machines h02k; control or regulation of electric motors h02p); supplying electric power for auxiliary equipment of electrically-propelled vehicles (electric coupling devices combined with mechanical couplings of vehicles b60d0001640000; electric heating for vehicles b60h0001000000); electrodynamic brake systems for vehicles in general (control or regulation of electric motors h02p); magnetic suspension or levitation for vehicles; monitoring operating variables of electrically-propelled vehicles; electric safety devices for electrically-propelled vehicles
(577)
B60L15
ethods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
(90)

B60L15/02 - Characterised by the form of the current used in the control circuit
(1)
B60L15/04 - Using dc
(5)
B60L15/06 - Using substantially-sinusoidal ac
(1)
B60L15/08 - Using pulses
(20)
B60L15/20 - For control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
(33)
B60L15/22 - With sequential operation of interdependent switches, e.g. relays, contactors, programme drum
(1)
B60L15/32 - Control or regulation of multiple-unit electrically-propelled vehicles
(2)
B60L15/36 - With automatic control superimposed, e.g. to prevent excessive motor current
(2)
B60L15/38 - With automatic control
(2)
B60L15/40 - Adaptation of control equipment on vehicle for remote actuation from a stationary place (devices along the route for controlling devices on rail vehicles b61l0003000000; central rail-traffic control systems b61l0027000000)
(4)
B60L15/42 - Adaptation of control equipment on vehicle for actuation from alternative parts of the vehicle or from alternative vehicles of the same vehicle train (b60l0015320000 takes precedence);;
(1)

Slow movement termination control device for electromobile

Device contains speed range determination facility to prohibit slow movement termination, slow movement termination prohibition facility. Speed range determination facility to prohibit slow movement termination includes slow movement termination prohibition timer. The timer is made capable to measure elapsed time within which absolute vehicle speed value is lower than the speed to prohibit slow movement termination. The slow movement termination prohibition facility is made capable to prohibit slow movement termination when slow movement termination prohibition timer indicates the set time value.

Railway signal transmission system and on-board signal transmission system

Group of inventions relates to a railway signal transmission system. A railway signal transmission system which transmits a command instruction to an on-board signal transmission system, wherein the on-board signal transmission system is installed on a train and the control command is compatible with the signal transmission system of said railway line. When a train switches to a railway line with a signal transmission system different from the signal transmission system of the current railway line, the travelling signal transmission system transmits a command to the on-board signal transmission system to replace the running train control application program at the boundary with the railway line with the different signal transmission system. The on-board signal transmission system further activates control based on said train control application program which is compatible with the signal transmission system of the railway line to which the train switches with simultaneous deactivation of control based on the train control application program which is compatible with the signal transmission system of the railway line being exited.

Slow movement termination control device for electrically driven vehicle

Proposed device contains means for determination of vehicle movement in opposite direction and means for slow movement termination suppression. Means for determination of vehicle movement in opposite direction determine vehicle movement in direction opposite to movement direction of selected gearshift range in condition where torque for slow movement is outputted without ceasing slow movement. Means for slow movement termination suppression prohibits slow movement termination even if vehicle speed approaches zero to meet condition of slow movement termination permission after means for determination of vehicle movement in opposite direction have determined that vehicle is moving in opposite direction.

Bed rock drilling plant, method of plant transportation and plant transportation speed regulator

Plant comprises movable track and drive assembly without ICE to displace the plant. Drive assembly comprises motor, electric drive system and transmission elements, jig displacing along said track and equipped with drill machine, control unit and user interface. Control unit comprises electric drive system load control means and control algorithm. User interface comprises speed controller. Proposed method comprises displacing the plant to drilling site, application the drive hardware, control over drive system load, intended overloading of electric drive system at displacement of the plant for limited time interval and notification of plant operation about overload. Speed controller comprises manual speed regulator. Speed regulator element has adjustment range wherein said load is adjusted in overload range exceeding the rated load.

Rock drilling plant and method of its positioning

Set of inventions relates to drilling plant positioning and to drilling plant. Proposed method consists in displacing the drilling plant over the rock by driving equipment without ICE. Drive motor generates required torque to be transmitted via mechanical gearing to drive wheel. Drilling plant is positioned by rock at drilling site in the case of rough or inclined surface of motion. Motor is used for displacement and stoppage of the plant at positioning. Ratio between drive motor rpm and drive wheel rotary speed at displacement of the plant at positioning is kept constant irrespective offload variation by torque. Rock drilling plant comprises carrier, drive equipment without ICE. Drive equipment comprises drive motor, control device, gearing elements, manipulator jug, rock drilling machine, control unit, mechanical gearing with antiskid component between drive motor and drive wheel and speed measuring device.

Device for magnetic field attenuation in electrical traction drive with increased energy datum

Device for magnetic field attenuation in electrical traction drive with increased energy datum

Invention relates to railway transport and may be used at vehicles with electrical traction motors. Proposed device consists of armature, traction motor excitation winding, field attenuation resistor and contactor. Field attenuation control circuit comprises microprocessor control unit, current transducer connected in traction motor armature winding and voltage transducer connected in power transformer auxiliary winging, and one electronic switch (IGBT-transistor). Electronic switch collector (k) is connected with field attenuation resistor connected parallel with excitation winding via contactor and emitter (e) is connected with excitation winding minus bus, while electronic switch control outlet is connected with microprocessor control unit receiving the data from current and voltage transducers.

Vehicle with front and rear wheel drive

Vehicle with front and rear wheel drive

Invention relates to vehicle with front and rear wheel drives. Vehicle comprises first and second drive motors and first and second rpm reducers. First rpm reducer decreases first motor rpm. Second rpm reducer decrease second motor rpm at rpm reduction factor smaller than first rpm reducer rpm reduction factor. Said factors of the first and second reducers are set to make rpm of certain front and rear wheels higher than that of other front and rear wheels.

Damping control device

Damping control device

Invention relates to device that controls quenching of transport facility oscillations. Damping control device performs control functions via control over motor torque. Damping of cushioned part oscillations is limited in response to storage battery operating conditions. Damping of cushioned part oscillations is limited when internal combustion engine is started or shut down and when storage battery voltage equals or exceeds upper permissible threshold value or equals or is lower than lower permissible threshold value.

Device for magnetic field attenuation in electrical traction drive with increased energy datum

Device for magnetic field attenuation in electrical traction drive with increased energy datum

Invention relates to railway transport and may be used at vehicles with electrical traction motors. Proposed device consists of armature, traction motor excitation winding, field attenuation resistor and contactor. Field attenuation control circuit additionally incorporates microprocessor control unit, current transducer connected in traction motor armature circuit, voltage transducer connected in power transformer auxiliary winding, one electronic switch (IGBT transistor) with collector (k) connected to field attenuation resistor connected parallel with excitation winding, with emitter (e) connected to negative bus of excitation winding and with control output of electronic switch (s) connected to microprocessor control unit receiving data from current and voltage transducers.

Contactor for vehicle control

Contactor for vehicle control

Contactor for vehicle control contains a forward electromagnetic drive body, an anchor with a non-magnetic butt-end prop shaped as a conic frustrum, the forward electromagnetic drive coil and a slot-type arc-extinguishing chamber. The movable and stationary, main, arc-extinguishing and auxiliary contacts, the arc-extinguishing chamber and the electromagnetic drive are assembled on a bearing rod designed to be fully moulded and manufactured of a unidirectional insulation material. The pusher slide bar made of a non-magnetic material has a conic concavity on the anchor side interacting with the anchor conic projection. The pusher second end is threaded and in fitted out with a retainer nut for adjustment of the gap between the sliding bar and the anchor as well as for connection to the plug pivotally connected to the insulator bearing the main and arc-extinguishing contacts. The second point of the said pusher alignment is the ring floating slider bearing installed in the indentation in the upper part of the electric magnet body so that to enable the bearing movement in the crosswise direction within the ambit of the insulator oscillation during the electromagnetic drive switching.

Device to control electrified transport facility

Device to control electrified transport facility

Invention relates to device that controls transport facility functions. Control device comprises motor drive control unit, determination unit and torque distribution control unit. Drive control unit distributes required torque and controls first and second motors. Determination unit calculates time interval whereat torque of motors makes reference torque. Reference torque is preset for one of said motors. Determination unit defines if calculated time is a preset definite time interval or larger than that. Torque distribution control unit reduces or ups torque of one of said motors proceeding from predefined time interval.

Device to automatically control speed of diesel locomotive with electric transmission

Device to automatically control speed of diesel locomotive with electric transmission

Invention relates to railway transport. Proposed device comprises speed parameters estimation unit, speed setting unit and speed transducer, traction generator current control unit, diesel regulator control unit, traction generator current and voltage transducers, gate element, integrator, comparators, amplifiers, functional converters, multipliers, adder, clock oscillator, logical devices, reversing counters, and units to control speed smooth and stepped control. Comparator output is connected to integrator input via gate element. Integrator output is connected to adder first input. Adder second input is connected to output of first reversing counter. Adder third input is connected to first amplifier output. Complementing inputs of first reversing counter are connected to appropriate outputs of first logical device. Input of first functional converter is connected to traction generator current transducer output, first amplifier input, third comparator first input and second multiplier first input. Second reversing counter output makes output of second unit of to control speed smooth and stepped control and second functional converter input. Fifth comparator output is connected to second amplifier input. Second amplifier output is connected with exciter input to make output of traction generator current control output.

Control device for vehicle with ac motor

Control device for vehicle with ac motor

Control device comprises engine torque computation signal generator, inverter, static inverter, and transducer. Said engine torque computation signal generator computes magnitude of engine torque to be sent to inverter. Static inverter feeds electric power to load arranged at vehicle. When AC voltage is not applied to transducer, computation unit defines the magnitude of regenerative torque signal from engine rotor rpm, static inverter input current and static inverter input voltage. Inverter feeds regenerated power produced by engine to static inverter.

Device to control electrified transport facility power plant

Device to control electrified transport facility power plant

Invention relates to electrified transport and aims at perfecting power plant control device. Proposed device comprises inverter 50 to convert DC voltage into AC voltage, power accumulator 50 and DC-to-DC converter 40 connected to power accumulator 60. It comprises also circuit selector unit 40 to select whatever voltage fed by external power supply via power takeoff device 2 and voltage fed by power accumulator 60 and feeds it to inverter 50 and communication control unit 200. The latter controls DC-to-DC converter 40 and circuit selector unit 70. Communication control unit 200 feeds control signals (C1 to C4) to DC-to-DC converter 40 and circuit selector 70 to control them when transport facility is supplied from external power supply and from power accumulator 60.

Microprocessor system for diesel locomotive traction generator voltage adjustment

Microprocessor system for diesel locomotive traction generator voltage adjustment

Invention relates to railway transport, particularly, to means of adjusting excitation current in electric transmission of diesel locomotive with self-contained heat engine. Proposed microprocessor system comprises diesel engine coupled with transition generator make diesel-generator set, exciter rigidly coupled with diesel engine, traction generator voltage transducer, traction generator load current transducer, diesel-generator rpm transducer, and pickup to indicate fuel feed to diesel. Microprocessor controller comprises first and second setting devices, 1st, 2nd and 3rd comparators, pneumatic brake control unit, motion mode computation and operating conditions indication unit, and interface. Note here that said controller is provided with functional converter with input connected with diesel-generator shaft rpm transducer output and outputs connected with 1st input of 3rd comparator and 1st input of adder, integrator with output connected to adder 2nd input. Adder output is connected to 1st input of 1st comparator. Comparator 2nd input is connected to multiplier output.

Device for adjusting electric train speed, using regenerative power and eliminating train wheels slippage

Device for adjusting electric train speed, using regenerative power and eliminating train wheels slippage

Invention relates to railway transport and may be used at vehicles with commutator-type traction motors. Proposed device comprises DC-to-AC converters configured for excitation windings and armature windings of every motor. Control unit allows synchronous operation of converters. Besides, said control unit serves to equalise load between motors by varying PDM. This allows eliminating wheel slippage. Said DC-to-AC converters have third transformer windings to feed internal circuits of electric locomotive from power line and to use regenerative power. In case constant voltage circuit is disconnected, power of storage battery is converted into variable voltage to recover high constant voltage via converter third windings connected to excitation windings for independent motion of locomotive in emergency.

Method for reduction of locomotive traction electric motors excitation

Method for reduction of locomotive traction electric motors excitation

Invention relates to electric traction systems of railway transport facilities, in particular to method for reduction of excitation of heavy-duty electric traction DC motors on locomotives. Method for reduction of locomotive traction electric motors excitation consists in successive switching on or off the steps of traction motors field reduction in the number of at least two ones. On each step of traction motors field reduction, switching on or off of field reduction of another or subsequent traction motor is performed with time delay for time value not less than operation of previous contactor of field shunting.

Power conversion device for electric motor excitation

Power conversion device for electric motor excitation

In the power conversion device the second control unit (100) includes the current control command shaping unit (10) shaping the electric motor (6) current control command based on the torque control command T*, the voltage amplitude index calculation unit (150) that calculates the voltage amplitude index (PMF-modulation factor) based on the current control command, the current control commands adjustment unit (80) shaping the value of current control commands adjustment dV based on the PMF-modulation factor and the electric motor (6) frequency FINV and the unit (50) for shaping pulse duration modulation signals/voltage control commands including the ripple suppression signal shaping unit shaping the ripple suppression signal based on DC voltage EFC to suppress the ripple component of the power source 2f-component for shaping a gate signal ( pulse duration modulation signal) into the inverter.

Method and system for automatic setting of train with distributed power

Method and system for automatic setting of train with distributed power

Group of inventions relates to methods and systems for managing trains with distributed power, specifically to remote adjustment, linking and testing of operations with distributed power. Proposed system comprises: communication interface to communicate between driving and remote locomotives, system of distributed power on the board of locomotive train to manage operations with distributed power of driving and remote locomotives; and distributed power adjusting unit communicating with distributed power system through communication interface. Distributed power adjusting unit is located on locomotive train and communicates with remote service facility to report state of establishing operations with distributed power between driving locomotive and remote locomotive to remote service facility. The method comprises the following steps: communication is established on driving locomotive with remote locomotives. Data transmitted from locomotive's distributed power adjusting unit is received remotely. Command which relates to distributed power automatic and remote adjustment is sent to distributed power system on driving locomotive. And acknowledgement is made that locomotive is configured for operations with distributed power.

Method of controlling ac motor torque by generating variable-frequency signal in electric drive and device to this end

Method of controlling ac motor torque by generating variable-frequency signal in electric drive and device to this end

Invention relates to control over AC motor electrical and mechanical characteristics. Proposed method consists in setting two new motor operating modes. First mode includes that of motor maximum torque. Second mode consists in maximum electric power saving. Said modes are loaded into parameter comparator. Number of idle work phases is defined to generate signal of idle phase set. Signals are allowed for in generating sets of the first mode work phase at maximum motor torque and second maximum power saving mode. Proposed device comprises power saving mode work phase ACS unit, idle phase quantity estimation unit, unit to compute idle phase set, unit for separate transmission of motor maximum torque signal and that of electric power maximum saving.

Electric locomotive microprocessor-based control system

Electric locomotive microprocessor-based control system

Invention relates to railway transport and aims at perfecting ACS to be used at AC electric rolling stock. Proposed system is designed to be mounted at new electric locomotives and currently operated trains equipped with rectifier-inverter converters with four-range voltage control to allow operation at higher load currents and notable distortions in contact system voltage shape. Microprocessor control system uses one microcontroller exercise manual and automatic control by two parameters: current and speed. Note here that portion of data from transducers is processed before microcontroller to expand diagnostical functions of the system with data display on indication unit. In case protective hardware operates recommendations are displayed to allow engineman to decrease time of detection and recovery of electric locomotive serviceability.

Safety unit

Safety unit

Invention relates to railway automation and telemetry systems and may be used in railway safety systems. Locomotive safety control unit comprises accelerometer and processor connected in series. Processor generates control signal and indication signals in emergency. For this it is provided with extra data buses for locomotive control instructions and limitation of motion parameters and their current values as well as control output of warning circuit. Accelerometer is rigidly secured on processor base. Besides, said processor may generate indication signals for engineman, securities and dispatcher while processor signaling circuit output is made up of three appropriate signal buses. Also, processor generates signal to control engine, brakes and door opening mechanism while processor control circuit output is made up of three appropriate control buses.< Processor may generate braking and emergent braking while appropriate control bus is made up of brakes control bus and emergent braking bus. Said processor comprises subtractor, adder, four comparators, two AND element, delay unit and OR element.

Control unit for asyncroneous electric motors with short-circuited rotor

Control unit for asyncroneous electric motors with short-circuited rotor

This invention covers frequency-regulated drives and can be applied for electrical transport. The control unit contains DC power source unit with unregulated output voltage, DC power filter unit, autonomous voltage inverter units, electric motor units, low-current AC power source unit with regulated output voltage, forming unit of control sinusoidal multiphase DC signals and synchronizer unit. DC power source unit provides DC-AC conversion without DC voltage magnitude regulation at its output. Low-current DC power source unit provides output voltage regulation depending on frequency of the control sinusoidal multiphase AC signals.

Electric train car control device

Electric train car control device

Set of invention relates to electric train car control devices for drive wheel induction motor inverter control. Proposed device comprises control unit including first estimation unit connected with limitation unit, second estimation unit connected with output signal processing unit. Besides, control unit comprises switching unit connected with first and second estimation units, and process control unit connected with second estimation unit and output signal processing unit. Control unit generates magnitudes of instruction of target torque for multiple motors to kill drive wheel slippage state proceeding from drive wheel motor rpm. Estimation unit defines drive wheel slippage state proceeding from deviation of speed and acceleration from preset thresholds. Limitation unit limits decrease in magnitude of instruction of preset torque fed from outside in compliance with the result of estimation made by first estimation unit. Second estimation unit defines is axial speed acceleration exceeds first threshold magnitude. Output signal processing unit outputs torque instruction magnitude processed by limitation unit.

Method of adjusting locomotive electrodynamic brake

Method of adjusting locomotive electrodynamic brake

Invention relates to adjustment of locomotive electrodynamic brake. Proposed method comprises setting locomotive speed. Said speed is normalised to be taken as braking traction motor preset rpm setting. Locomotive current acceleration is calculated, normalised and added to maximum rpm of one of said braking traction motors. Results of addition is compared with preset rpm setting. Result obtained is used to correct braking force setting.

Vehicle control contactor

Vehicle control contactor

Proposed contactor incorporates forward electromagnetic drive, slit arc extinguish chamber with insulating strip, moving and fixed, main and arc extinguish contacts, all being secured on rod. Besides, contactor comprises boost unit and auxiliary contacts. Electromagnetic drive housing has threaded sleeve to house rod. Said rod has return spring and rod pusher screwed in its face. Electromagnetic drive armature has nonmagnetic thrust arranged on face directed toward rod pusher and arranged inside coil form of forward electromagnetic drive to sit on gaskets. Boost unit has contact element, resistor and boos pusher coupled via tie rod with rod. Moving main and arc extinguish contact are coupled via insulator with rod. All-soldered coil form is made from yellow metal.

Method of controlling induction traction motors connected in parallel to single inverter

Method of controlling induction traction motors connected in parallel to single inverter

Invention relates to railroad vehicles and may be used at rolling stock with induction traction motors. Proposed method comprises calculating current electromagnetic moment and stator flux linkage in Direct Torque Control unit for first motor. Moment calculation is carried out by rpm controller using maximum or minimum rpm of induction motors connected in parallel. In traction mode, control is performed by maximum rpm. In braking mode, control is performed by minimum rpm. Setting for stator flux linkage Ψs3 is defined in upper level control system by formula Ψs3=f(ωmean), where ωmean is motor mean rpm, or locomotive speed reduced to motor shaft.

Method of controlling multi-drive electric transmission of multi-axle wheeled vehicle

Method of controlling multi-drive electric transmission of multi-axle wheeled vehicle

Invention relates to wheeled vehicles. Proposed method consists in setting required speed, determining angular speed setting for equivalent wheel, measuring current angular speed of drive motor of each wheel and adjusting angular speeds of all wheels. With actual angular speed of any wheel exceeding upper limit, electric power fed to wheel drive motor is reduced to tolerance. With actual angular speed of any wheel exceeding lower limit, electric power fed to wheel drive motor is increased to tolerance.

Speed control device of asynchronous electric motor (versions)

Speed control device of asynchronous electric motor (versions)

Speed control device of asynchronous electric motor includes active rectifier made as per bridge circuit the ac input of which is connected to outputs of secondary winding of network transformer. Capacitance divider in constant voltage circuit of frequency converter is connected to output of active rectifier. Middle point of secondary transformer winding is connected to middle point of capacitance divider in dc circuit of converter. For the purpose of further simplification of the device two phases of asynchronous electric motor are connected to two arms of voltage inverter, and the third phase of asynchronous electric motor is connected to middle point of capacitance voltage divider in dc circuit of frequency converter. Active bridge rectifier of supply voltage is made on two diodes the two in-series connected arms of which are shunted with opposite connected transistors.

Classifier of technical condition of electric system of reverse traction current passage

Classifier of technical condition of electric system of reverse traction current passage

Device is composed of the following components: a unit of preliminary signals processing, a unit of nomographic samples, a unit of information display, a nomographic preprocessor, a switching unit, a distributed unit of preliminary signals processing, communication modules.

Motor control device

Motor control device

Motor control device having controller to control multiple inverters which are provided for each of multiple ac motors; at that, the size, weight and cost have been reduced by effective grouping of operations performed with each computing unit included in the controller. Controller (10) to control inverters includes the following: first common computing unit (20) and the second common computing unit (30), which compute and output control signals which are common for each of the inverters; individual computing units 40A and 40B, which individually calculate and output the control signal referring to each of the inverters; and common logic computing unit (60) which outputs enabling signal for controlled switching of each of inverters on the base of the signals received from the first common computing unit (20), the second common computing unit (30) and individual computing units 40A and 40B.

Method and system for perfecting train handling techniques and reducing fuel consumption

Method and system for perfecting train handling techniques and reducing fuel consumption

Proposed method comprises calculating train weight, determining train current location by onboard means, identifying track relief change section prior to reaching said section, and correcting locomotive power output parametre. Proposed system comprises processor location determination device and track profile data base. Processor incorporates algorithm of computing train weight and amount of train acceleration/deceleration.

Package control device for dc electric locomotives

Package control device for dc electric locomotives

Invention relates to railroad transport and can be used to control DC electric locomotives. Proposed device incorporates control units mounted in operator cabins connected via remote control communication lines, forward and reverse, with control hardware in every machine section of electric locomotive. Control unit comprises main and emergency sequencers, main and emergency control encipherers, asynchronous control unit, address generation unit, reverser, first and second switches, second switch output being connected with remote control communication lines. Control hardware comprises: main and emergency remote control code decipherers, address generation unit, three OR element, actuating unit, traction controller, current and voltage transducers, remote signaling code encipherer with its output connected via remote signaling communication line with signaling unit input arranged on control board of every cabin of operator. Sequencer represents a set of control components designed to cut in control system and select its operating condition: main or emergent control board.

Electric locomotive control circuit with no relays

Electric locomotive control circuit with no relays

Invention relates to electric locomotive power circuits. Proposed control circuit comprises workstations of operator and assistant operator, operator controller with motion condition setting device, power hardware with drives and remote control system with rigid logic of functioning. Remote control system is built around logical elements. Input signals for power hardware state interlocking and relay simulator cut-in control are fed via three units of voltage input dividers with optical decoupling of the inputs of two electronic switching units. Outputs of two electronic switching units are connected to inputs of seven output electronic gates. Outputs of the first six units are connected to coils of power hardware. Outputs of the seventh unit is use to connect low-power AV motors.

Transport facility and method of its control

Transport facility and method of its control

Invention relates to method of control over transport facility. Transport facility comprises motor, power transfer module, drive shaft rpm determination or calculation module, motor rpm determination module, rpm estimation module and transport facility stop estimation module. Proposed method comprises revealing if determined or calculated drive shaft rpm and motor rpm comply or do not comply with specs proceeding from determined or calculated drive shaft rpm. Drive shaft rpm is defined or calculated be drive shaft determination or calculation module. Motor rpm is determined by motor rpm determination module. It comprises also revealing if determined or calculated drive shaft rpm and motor rpm comply or do not comply with specs. Now, whether transport facility stopped or not, is estimated proceeding from estimated drive shaft rpm.

Method of train speed automatic control and device to this end

Method of train speed automatic control and device to this end

Invention relates to safe control of railroad traffic, namely to method of train speed automatic control and device to this end. At whatever variation of preset train speed, proposed device sets such train speed variation rate that lengthwise dynamic forces originating in transient modes of motion do not exceed their tolerable magnitudes. Proposed system comprises train parametre setter, train operator controller speed, train running time control circuit output, selector of minimum signal, smoothing device, comparator, speed controller, force setting device, logical unit, limiting unit, traction motor and speed metre. Proposed system represents a self-organising system.

Device for vector control of ac electric motor

Device for vector control for AC electric motor comprises damping controller, which automatically calculates optimal working value of damping and does not require establishment of any amplification ratio. Device for vector control comprises controller (30) of vector for control of AC electric motor vector (6) in compliance with current command or torque command, and controller (40) of damping for calculation of working value of damping to suppress changes of voltage in Efc capacitor. Controller (40) of damping calculates extent of Efc capacitor voltage, operates current command or torque command of vector controller (30) on the basis of working value of damping, which complies with specified extent of variation, and controls reverse converter (4) so that current passing through reverse converter varies so that is suppresses change caused by change in voltage of Efc capacitor.

Electrically driven vehicle

Electrically driven vehicle

Invention relates to electrical engineering and can be used in electrically driven vehicle to allow electric power transfer between power accumulator and power supply or electrical load arrange outside said vehicle. In charge/discharge conditions, inverter (10, 20) converts electric power between electric power accumulator (B) and common-purpose power supply (92) connected to neutral point (N1, N2) via power line (ACL1, ACL2). In charge/discharge conditions, electronic control unit (ECU) (30) sets carrier frequency of inverter (10, 20) equal to that exceeding frequency in motion conditions. Additionally, in charge/discharge conditions, control circuit (40) excited inverter (10, 20) with the help of gate resistance exceeding that in motion conditions.

Power circuit of municipal electrified rolling stock

Power circuit of municipal electrified rolling stock

Invention relates to municipal electrified vehicles using storage battery supply. Proposed power circuit comprises, apart from switching circuitry and voltage thyristor controller, a storage battery to allow several thrust and braking operating conditions, including supply from storage battery with down current collector or during outage of power supply.

Method and device for exchange of lead and remote locomotives in train with distributed power

Method and device for exchange of lead and remote locomotives in train with distributed power

Communication system contains place-exchange function which is performed via multiple stages of method for place-exchange of functionality of lead unit and remote unit at the end of train. Train operation conditions at first can be determined to ensure possibility of place-exchange function fulfilment. Communication system is set in neutral mode and brakes and protective interlocks are used for protection against train movement. Each remote locomotive in the train is commanded to go to transition stage and it is reconfigured to accept commands and messages from new lead unit. After train driver has moved from old lead unit to new lead unit, the old lead unit goes to remote status and new lead unit gives command to finish transition period. Train brakes are lowered and communication system sets in normal mode of operation. At this moment traction power can be supplied to move train.

Complex control system for dc electric locomotives

Complex control system for dc electric locomotives

Invention relates to railroad ACS for DC electric locomotives. Proposed complex system comprises operating conditions controller with its outputs connected to the boards of the main and auxiliary controllers. The latter have their outputs connected to inputs of the main and auxiliary control cipherers. Outputs of cipherers are connected, via first switchboard controlled by operating conditions controller, to second switchboard. One of outputs of switchboard is connected with forward telecontrol communication line, while another one is connected with the rearward telecontrol communication line. Signal is fed, via communication lines, to inputs of the main or emergency telecontrol code cipherers with their outputs connected with logical elements OR. Signal from said elements is fed to locomotive actuator. Outputs of all controllers are isolated from inputs of the main and emergency control cipherers and first switchboard. Output of switchboard and inputs of the main and emergency telecontrol code cipherers are isolated from forward and rearward telecontrol communication lines.

Electric rolling stock speed controller

Electric rolling stock speed controller

Proposed device comprises power source, contactor, armature windings, excitation windings of first and second traction DC motors, first diode, storage battery, second diode, 4th and 3rd DC traction motor armature windings, and common bus. Storage battery is connected in traction current circuit, absorbs excess voltage in starting and gets charged, at a time. During independent operation, DC traction motors change over to supply from storage battery after 6th, 2nd and 4th contactors are thrown in. Current flows from storage battery anode via 2nd contactor, armature windings, 1st and 2nd Dc traction motor excitation windings, 4th contactor, excitation windings, 4th and 3rd DC traction motor armature windings, 6th contactor and storage battery cathode. In braking, electric power is generated by DC traction motors to recharge storage battery.

Electric circuit to feed dc low-voltage to commutator traction motors of electric locomotiv in its transfer to repair position

Electric circuit to feed dc low-voltage to commutator traction motors of electric locomotiv in its transfer to repair position

Invention relates to serving DC and AC electric locomotives and aims at increasing safety in transfer of said locomotives to repair position. Proposed device incorporates magnetic starter to be connected to three-phase rectifier. Rectified DC rectified voltage is sent, via flexible cable and connector assembly, to electric locomotive power circuit. Electromagnetic starter is triggered through control relay interlock-contacts fed from DC source with voltage that operates voltage harmless for people. Control relay is actuated only after flexible cable is connected to electric locomotive.

Mixed excitation system of electric locomotive traction motors

Mixed excitation system of electric locomotive traction motors

Invention relates to control over DC traction motors of electric locomotives. Proposed device comprises starting-regulating unit, pilot exciter source, pilot exciter supply contactor, output pilot excitation contactor, two pickups of armature rotation, current adder, sequencer unit, current limitation setting unit, armature current position setting unit, excitation current position setting unit, two analysers of traction motor shaft rotation, two comparator units, element OR, blocking unit, armature current controller and excitation current controller.

Device to control electric stock speed

Device to control electric stock speed

Proposed device comprises electric power source, traction motor armature and excitation windings connected in series with their common terminal connected to the first thyristor, second resistor, first current pickup and control unit, all connected in series. Control unit output is connected to the first thyristor control electrode. Control unit second output is connected to second thyristor control electrode. Proposed device comprises also capacitor and second current pickup. Traction motor armature winding free terminal is connected via second current pickup. Free terminals of the first current pickup and traction motor excitation winding are connected to positive terminal of power supply. Outputs of the first and second pickups are connected to control unit fist and second inputs, respectively. Free terminal of the first resistor is connected to the first input of voltage transformer with its input being connected to power supply. Second output of voltage transformer is connected with anode of the second thyristor.

Current relay regulation device

Current relay regulation device

Proposed device comprises load, current pickup, first comparator, second comparator, pulse generator, first pulse shaper, second pulse shaper and RS-trigger. In compliance with this invention, is additionally incorporates solid-state converter, first adder, second adder, first AND-element, second AND-element, first OR-element, second OR element, first pulse amplifier and second pulse amplifier.

Control method of locomotive operation in conditions of tunnel

Control method of locomotive operation in conditions of tunnel

Invention refers to setting of operational characteristics before entering the tunnel. The method consists in setting of specified operational characteristics of at least one chosen locomotive in the train at preparation for going through the tunnel when the train approaches tunnel entry. Conditions inside the tunnel and chosen locomotive operation are controlled inside the tunnel when the train goes through the tunnel. It includes dynamic changing of operational characteristics configuration of chosen locomotive according to the controlled conditions inside of the tunnel and operation of the chosen locomotive inside the tunnel. Thus, pulling force sufficient for train movement through the tunnel according to the plan is achieved and locomotive operation is optimised. Once again operational characteristics of chosen locomotive are set when the train approaches tunnel exit for facilitation of chosen locomotive recovery from influence of going through the tunnel.

Reversible direct current drive with sequential excitation motor (versions)

Reversible direct current drive with sequential excitation motor (versions)

Electric drive includes contacts of two reverse contactors in armature circuit, adjustable key connecting motor excitation winding over additional low-voltage source and two diodes with armature outputs, two other diodes connected between excitation winding outputs and power source clamp. Another motor power source clamp is connected to one or another low-voltage power source. Contact of additional contactor closed in traction mode and open in recuperate halt braking mode is connected between power source clamp connected to second diode couple and commutation elements of reverse switch.

Locomotive dc pulsed-control traction drive

Locomotive dc pulsed-control traction drive

Invention relates to railway transport and aims at perfecting DC electrical-braking electric rolling stock. Electric train DC traction drive incorporates pulse control circuitry and comprises a current collector, input throttle and pulse converters connected in series to overhead system. A contact of independent excitation shunted by a safety thyristor is connected in between traction drive armature and excitation windings. Pulse controller and armature windings are shunted by braking resistor and braking resistor connection contact. There is a diode connected in parallel to pulse controller and armature circuit linear contact pair, the diode cathode being connected to the pulse controller input and its anode being connected to the common input smoothing reactor and braking resistor connection contact.

Device to control dc traction motors of electrical rolling stock

Device to control dc traction motors of electrical rolling stock

Invention relates to electrified railway transport vehicles and aims at aims at increasing reliability of the devices controlling the traction motor excitation current. The proposed device to control DC traction motors of electrical rolling stock comprises an armature circuit of the set of traction motors, reactor (Lp) and fast-acting contactor (FAC) with its contacts shunted by resistor (R1). Excitation windings (OB1 and OB2) are connected in series and supplied from controlled rectified (U1) with its inputs shunted by thyristor (V1) with resistor (R2). In compliance with the proposed invention, reactor (Lp) is simultaneously connected into the armature circuit and that of excitation windings (OB1 and OB2) to provide for dynamic feedback with respect to excitation current.

Another patent 2513089.

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