EP3452354A1 - Autonomous multipurpose installation for optimize the functioning of diesel locomotives - Google Patents

Autonomous multipurpose installation for optimize the functioning of diesel locomotives

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Publication number
EP3452354A1
EP3452354A1 EP16717721.1A EP16717721A EP3452354A1 EP 3452354 A1 EP3452354 A1 EP 3452354A1 EP 16717721 A EP16717721 A EP 16717721A EP 3452354 A1 EP3452354 A1 EP 3452354A1
Authority
EP
European Patent Office
Prior art keywords
locomotive
diesel engine
traction
installation
auxiliary
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.)
Ceased
Application number
EP16717721.1A
Other languages
German (de)
French (fr)
Inventor
Mihai Marcu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3452354A1 publication Critical patent/EP3452354A1/en
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C5/00—Locomotives or motor railcars with IC engines or gas turbines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B61C17/12—Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units

Definitions

  • the present invention is an evolved form, adapted to the new technologies and completed with new features and improvements, a continuation of the following patented inventions in Romania: 87146/1984; 206980/1993; 126933/2015, deposit for patent no. 129356/2013 and experiments made with this installation on 18 diesel electric locomotives of 2100 HP 1 for freight operation and a locomotive of the same type for passenger operation, in the period 2012-2015.
  • the invention refers to an autonomous multipurpose installation which is designed to provide the operation of diesel locomotives at optimal regimen according to the effective needs in terms of energy consumption for each phase of rail transport.
  • 5 1 the primary power supply consisting of a set of accumulator batteries with the capacity adapted to the specific needs of each locomotive type. The functioning of this power supply depletes its capacity. It has the main role to start the traction diesel engine.
  • the traction diesel engine is an "undepletable" source which ensures both the traction power and the power supplied to all the auxiliary services of the locomotive.
  • the energy consumption does not correspond to the use of the locomotive required by the needs of each stage of the transportation process, thus appearing the fuel overconsumption of the traction diesel engine;
  • the main source of energy is unevenly exploited in a disproportionate power range from a few kW (lighting, vigilance control device, air conditioning for the driver's cab etc.) to the nominal value of the power for hauling the train;
  • Idle running time of the diesel engine exceeds 60% of total running time on freight operation and 40% on passenger operation;
  • the technical problem solved by the invention is the optimizing of the energy needs required by each phase of railway transport and thus the reducing of environmental pollution.
  • the auxiliary energy source S3 achieves the following:
  • the auxiliary energy source (the third power source of the locomotive) of the multipurpose installation for optimize the functioning of the diesel locomotive, according to the invention, consists of an auxiliary power-pack - diesel engine - three phase synchronous generator - sized to provide power to auxiliary services of locomotive in all situations when the locomotive does not develop the traction force, both stationary and in motion hauling a train or running isolated, in operating mode or in the shed mode.
  • auxiliaries services air compressor for compressed air for brake and pneumatic command, battery charging, lighting and cab signalling, locomotive controls, air conditioning for driver's cab/Other specific auxiliary services required by the locomotive manufacturer.
  • Voltage adapters - rectifiers, converters or inverters - can be used on any type of locomotive.
  • the auxiliary energy source (S 3 ) of the multipurpose installation can be used with a power adapter to supply one or two traction electric motors, when the locomotive has to be moved, isolated, on short distances in the depot or in the railway station. Thus it can be avoided the start of the traction diesel engine or the use of another locomotive to haul it. This system is very important when the diesel locomotive is introducing or removed from the maintenance warehouse.
  • the auxiliary energy source (S 3 ) of the multipurpose installation can be used with a power adapter also for participation in the starting process of the traction diesel engine together with the battery set or with capacitors.
  • the locomotive can be equipped with a battery set of low capacity.
  • the multipurpose installation provides power supply for the air compressor at all times and thus produces the compressed air needed for engine start.
  • the multipurpose installation is provided with a three- position switch ("OPERATING”, “O”, “SHED”), manually operated, through which it choose the operating mode of the installation as follows:
  • a programmable logic controller command the start or stop of the operation of the auxiliary power source during warm maintaining of the diesel engine.
  • PLC programmable logic controller
  • Maintaining warm the traction diesel engine is provided by an electric or thermal heater supplied by the auxiliary group, and a low-power pump, which ensure the permanent circulation of the coolant through the cooling installation and through the heater.
  • the multipurpose installation both in operating and in shed mode is provided with: a system for analyzing and recording on non-volatile memory card, a system for transmission to the ground of the registered parameters, alerts when keeping warm process is not conducted under optimal conditions and with a screen that displays operating parameters of the installation or possible breakdowns.
  • Auxiliary energy source (S 3 ), according to the invention, is connected to the fuel installation of the locomotive, to the traction diesel engine cooling system either directly (both motors have the same cooling system) or separately via a heat exchanger. Both solutions have the advantage of simplifying the installation, i.e. auxiliary diesel engine does not need its own cooling system and two engines remain in common in warm condition.
  • Auxiliary energy source is connected to the wiring of the locomotive via power adapter that provides the necessary voltage for the auxiliary services.
  • the multipurpose installation is also used and when the locomotive is operational and must not develop the traction force and therefore the traction diesel engine functions are taken over, with compliance of rail regulations, in terms of assuring the safety of traffic, of the locomotive and, in particular, that of the train and locomotive staff.
  • the cases in which the installation may be used are:
  • the multipurpose installation has maximum efficiency for freight and shunting operation and less efficiency in passenger operation. Also the maximum savings are during winter and minimal during summer.
  • Fig. 1 Autonomous multipurpose installation for optimize the functioning of diesel locomotive when it is in "OPERATING" mode
  • auxiliary group (1) is the independent auxiliary energy source S 3 , three-position switch ("OPERATING", “O” "SHED") (2) through this is selected the operating mode of the installation according to the locomotive activity, a PLC (3) which ensures automatic control, supervision of operation and data recording for the entire multipurpose installation, fuel locomotive installation (4), cooling system (5) of the traction diesel engine (6) either directly or through the heat exchanger (30), battery set (7), voltage adapter (8) through which the locomotive auxiliary services are supplied from the auxiliary group, diagnosis and data recording system (9), ground transmission system for information (10), display for displaying data and failures (1 1).
  • auxiliary services supplied from auxiliary group (1 ) are: vigilance and control device (12), driver's cab air conditioning (13), locomotive controls (14), lighting and locomotive signalling (15), other auxiliary services of diesel locomotive (16), the air compressor driven by an electric motor (17) which can be DC or three-phase asynchronous in which case it is powered by the voltage adapter (18) from the terminalsiof the three-phase synchronous generator of the auxiliary group (1).
  • auxiliary group (1) can be supplied with electricity one or two electric traction motors (19), via the voltage adapter (20), providing the movement of isolated locomotive on short distances.
  • auxiliary group (1) With the help of the auxiliary group (1) by the voltage adapter (28), together with the battery set (7) or capacitors may be carried out the starting of the locomotive traction diesel engine (6).
  • the solution reduces the capacity of locomotive storage battery in proportion to the part that is taken by the auxiliary group.
  • the auxiliary group (1) ensures feeding air compressor (17) at any time, producing compressed air necessary for engine start-up through the installation (29).
  • FIG. 2 The principle of the multipurpose installation for optimize the functioning of diesel locomotive, when the locomotive is in shed mode, according to the invention, is shown in Figure 2 and consists of: auxiliary group (1), three-position switch (2) on "SHED" position, PLC control, diagnostics and records (3), fuel locomotive installation (4), cooling system (5) of the traction diesel engine (6), battery set (7), voltage adapter (8), diagnosis and data recording system (9), ground transmission system for information (10), display for displaying data and failures (1 1), the voltage sensor (21) for voltage at the battery terminals, secondary pump water (22) for circulating coolant in the cooling traction diesel engine installation, coolant temperature sensor (23), electric or thermal heater (24 ) for coolant, voltage adapter (25) for supplying secondary water pump, installation for closing or opening of the interior and exterior shutters mounted in the air duct of the cooling radiator (26), electric power supply and control unit (27) for the heater of the coolant .
  • auxiliary group (1) three-position switch (2) on "SHED" position
  • PLC control diagnostics and records
  • the PLC (3) takes over the monitoring and control system of the multipurpose installation for this functioning condition.
  • PLC commands the starting or stopping of the diesel engine of the auxiliary group (1).
  • the coolant temperature sensor (23) activates the start when the temperature is equal to the minimum temperature specified by the manufacturer of the traction diesel engine and activates the stop when the temperature increases with about 10° C or other value chosen by the applicant.
  • the voltage sensor (2 It) for the ibattery set commands the start of the auxiliary group when the voltage drops by about 3 volts and its stop when the voltage at the batteries terminal is equal to the nominal value.
  • the secondary pump water (22) runs constantly and it is feed by the voltage adapter (25) from the battery set (7), ensuring the circulation of coolant through the heater (24) and through the entire cooling system (5) of the traction diesel engine (6). In this way the temperature uniformity is achieved across cooling installation and the formation of cold spots is prevented.
  • the electric power supply and control unit (27) provides the necessary voltage for the coolant heater (24), which starts the heating process.
  • the temperature sensor (23) via the PLC (3), orders the stopping of the auxiliary group (1).
  • the PLC verifies the position of interior and exterior shutters mounted in the air duct of the cooling radiator (26) and orders their closure.
  • the PLC (3) controls the opening and closing of interior and exterior shutters mounted in the air duct of the radiators in both operating modes of the locomotive (active, shed). Closure occurs as long as the coolant temperature has smaller value than the minimum optimum for the functioning of the traction diesel engine in order to avoid heat loss from the radiator, thus ensuring the operation of diesel engine thrust to the optimum functioning when consumption of diesel fuel is minimal.
  • the interior and exterior shutters mounted in the air duct of the radiators remove much of the heat loss from radiators and provide keeping warm of the locomotive with minimum fuel consumption.
  • the three-position switch (2) When the locomotive is in active mode, the three-position switch (2) is set to "OPERATING". The command of start - stop of the auxiliary group (1) of the multipurpose installation is done manually by the locomotive driver. Since it has started the auxiliary group, the PLC (3) controls all the operation process of the entire system except its stop command.
  • the multipurpose installation name comes from the fact that it provides the following functions: - supplies all the auxiliary services of the locomotive when it is operating and must not develop the traction force hauling a train or running isolate, without deviating from the rail legislation: air compressor (17), vigilance control device (12), driver's cab air conditioning (13), locomotive controls (14), lighting and locomotive signalling (15), other auxiliary services specific to each type of locomotive (16), battery set (7);
  • the air compressor (17) can be supplied at any time by the auxiliary group (1), thus ensuring the necessary air for the starting process;
  • the PLC (3) takes the control of the entire system, providing the start and stop of the auxiliary group (1), keeping the traction diesel engine (6) warm and charging the battery set (7), so that the locomotive is ready at any moment to be put-in operation state.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention refers to an autonomous multipurpose installation for optimize the functioning of diesel locomotive, energy-independent from the sources existing into the locomotive, or from external energy sources. It ensures the functioning of the locomotive in all situations of railway operation and railway transport, when traction regime is not needed, both stationary and in motion, hauling a train or running isolated in operation mode, with compliance of rail regulations, aimed mainly at reducing transport costs as well as environmental pollution. The multipurpose installation, according to the invention, provides for diesel locomotives the optimization of railway operating, through four activities: reduces the time idling of the traction diesel engine when the locomotive is in operating regime, keeps warm the traction diesel engine and the storage battery when the locomotive is in the shed, participates in starting the diesel engine with battery set or with capacitors, ensures short displacement, isolate, in the railway station or in the depot by supplying 1-2 electric traction motors.

Description

AUTONOMOUS MULTIPURPOSE INSTALLATION FOR OPTIMIZE THE FUNCTIONING OF DIESEL LOCOMOTIVES
The present invention is an evolved form, adapted to the new technologies and completed with new features and improvements, a continuation of the following patented inventions in Romania: 87146/1984; 206980/1993; 126933/2015, deposit for patent no. 129356/2013 and experiments made with this installation on 18 diesel electric locomotives of 2100 HP 1 for freight operation and a locomotive of the same type for passenger operation, in the period 2012-2015.
The invention refers to an autonomous multipurpose installation which is designed to provide the operation of diesel locomotives at optimal regimen according to the effective needs in terms of energy consumption for each phase of rail transport.
It is known that diesel locomotives are equipped with two power supplies:
51 - the primary power supply consisting of a set of accumulator batteries with the capacity adapted to the specific needs of each locomotive type. The functioning of this power supply depletes its capacity. It has the main role to start the traction diesel engine.
52 - the main source of energy, the traction diesel engine is an "undepletable" source which ensures both the traction power and the power supplied to all the auxiliary services of the locomotive.
The system with two sources of energy has the following disadvantages highlighted by the actual circumstances of the use of the locomotives in the trains hauling:
- the energy consumption does not correspond to the use of the locomotive required by the needs of each stage of the transportation process, thus appearing the fuel overconsumption of the traction diesel engine;
- during the transportation process, the main source of energy is unevenly exploited in a disproportionate power range from a few kW (lighting, vigilance control device, air conditioning for the driver's cab etc.) to the nominal value of the power for hauling the train;
- unequal loading of diesel engine during transport operation leads to uneconomic operation thereof. Idle running time of the diesel engine exceeds 60% of total running time on freight operation and 40% on passenger operation;
- real hourly average power developed by the traction diesel engine does not exceed 30% of its nominal power; - due to the great ^number of idling hours of the traction diesel engine, the average hourly energy consumed by the auxiliary services of the locomotive exceeds 40% of the hourly energy consumed for the effective achievement of the traction operation;
- diesel engine idling produces the undesired destructive effect on it (calamine produced due to incomplete combustion of diesel fuel and therefore results large wear, infestation of lubricating oil, imbalances in the crank mechanism etc.) and environmental impacts due to the heavily polluting effect of incomplete combustion of diesel fuel.
Relating to the new environmental requirements and the need to decrease the costs of transport, the solution of the locomotive with two energy sources is not economical.
The technical problem solved by the invention is the optimizing of the energy needs required by each phase of railway transport and thus the reducing of environmental pollution.
The solution that provides optimization in the operation of diesel locomotive is mounting on this of a third energy source "undepletable" S3, which operates independently of the other sources from the locomotive and which provides energy for those phases of the act of railway operation that not need traction regime.
The auxiliary energy source S3 achieves the following:
- reduces traction diesel engine idling by 50%, considering idling for longer times of 5 minutes while the operation time of the diesel engine decreases by at least 30%;
- provides power supply for the locomotive auxiliary services, without any time limitation, in all situations in which the locomotive does not require the development of traction force, in operating mode or in the shed, with minimal fuel consumption;
- it does not depend on other energy sources from outside the locomotive;
- the handling, supervision and operation are easy;
- its maintenance schedule does not differ from the locomotive maintenance schedule. The auxiliary energy source (the third power source of the locomotive) of the multipurpose installation for optimize the functioning of the diesel locomotive, according to the invention, consists of an auxiliary power-pack - diesel engine - three phase synchronous generator - sized to provide power to auxiliary services of locomotive in all situations when the locomotive does not develop the traction force, both stationary and in motion hauling a train or running isolated, in operating mode or in the shed mode.
When the locomotive operates (locomotive crew is in the driving cab) and hauls a train or runs isolated, auxiliary power supply of the multipurpose installation, according to the invention, supplies the following auxiliaries services: air compressor for compressed air for brake and pneumatic command, battery charging, lighting and cab signalling, locomotive controls, air conditioning for driver's cab/Other specific auxiliary services required by the locomotive manufacturer.
Three-phase voltage produced by the generator of the auxiliary group, through various voltage adapters, is adjusted to the values and parameters required to supply auxiliary services. Voltage adapters - rectifiers, converters or inverters - can be used on any type of locomotive.
The auxiliary energy source (S3) of the multipurpose installation, according to the invention, can be used with a power adapter to supply one or two traction electric motors, when the locomotive has to be moved, isolated, on short distances in the depot or in the railway station. Thus it can be avoided the start of the traction diesel engine or the use of another locomotive to haul it. This system is very important when the diesel locomotive is introducing or removed from the maintenance warehouse.
The auxiliary energy source (S3) of the multipurpose installation, according to the invention, can be used with a power adapter also for participation in the starting process of the traction diesel engine together with the battery set or with capacitors. In this case the locomotive can be equipped with a battery set of low capacity.
If the traction diesel engine is fitted with pneumatic starter, the multipurpose installation provides power supply for the air compressor at all times and thus produces the compressed air needed for engine start.
The multipurpose installation, according to the invention, is provided with a three- position switch ("OPERATING", "O", "SHED"), manually operated, through which it choose the operating mode of the installation as follows:
- "OPERATING" - when the locomotive is in operating condition and the driver is in the driver's cab. In this case, the multipurpose installation is controlled manually by the driver that takes into account the conditions in which the locomotive operates;
- "O" - "OFF" - the installation is completely removed from the operation;
- "SHED" - when the locomotive is in the shed or in railway station, with traction diesel engine stopped, waiting for a new request for operation. In this case, the multipurpose installation works automatically, having two control sensors:
- sensor for minimum temperature of the cooling water of the traction diesel engine;
- sensor for minimum voltage of the batteries.
According to information provided by these two sensors, a programmable logic controller (PLC) command the start or stop of the operation of the auxiliary power source during warm maintaining of the diesel engine. The multipurposeiinstallation, according to the invention,! assures warm maintaining of the locomotive when the three positions switch is set to "SHED", i.e. the diesel traction engine is maintained at the minimum temperature specified by its manufacturer, and the voltage in the accumulator battery does not decrease by more than 3 volts, which is very important especially when the locomotive is stationary for a long period of time.
Maintaining warm the traction diesel engine is provided by an electric or thermal heater supplied by the auxiliary group, and a low-power pump, which ensure the permanent circulation of the coolant through the cooling installation and through the heater.
If the cooling radiators of the traction diesel engine need to be kept warm thereof in the radiators duct there is mounted a shutter system (according to the invention 126933- Romania) which is closed when the locomotive is in the shed, thus being removed most of their heat loss and warm keeping is performed with low fuel consumption. PLC of the installation will verify if indoor and outdoor shutters are closed and will command their closure.
The multipurpose installation, according to the invention, both in operating and in shed mode is provided with: a system for analyzing and recording on non-volatile memory card, a system for transmission to the ground of the registered parameters, alerts when keeping warm process is not conducted under optimal conditions and with a screen that displays operating parameters of the installation or possible breakdowns.
Auxiliary energy source (S3), according to the invention, is connected to the fuel installation of the locomotive, to the traction diesel engine cooling system either directly (both motors have the same cooling system) or separately via a heat exchanger. Both solutions have the advantage of simplifying the installation, i.e. auxiliary diesel engine does not need its own cooling system and two engines remain in common in warm condition. Auxiliary energy source is connected to the wiring of the locomotive via power adapter that provides the necessary voltage for the auxiliary services.
The multipurpose installation, according to the invention, is also used and when the locomotive is operational and must not develop the traction force and therefore the traction diesel engine functions are taken over, with compliance of rail regulations, in terms of assuring the safety of traffic, of the locomotive and, in particular, that of the train and locomotive staff. The cases in which the installation may be used are:
- short shunting inside the railway stations with long waiting times;
- loading and unloading of that goods that require compressed air for handling; - as second locomotive used Cor hauling trains on short heavy ramps and afterwards, until the station, there is no longer being required to develop traction force fort second locomotive;
- marshalled of freight trains;
- long stops in railway stations;
- deviations from the timetable;
- running the locomotive, in the train unit, without developing traction force, having the driver in the cab driver, for hauling services or shunting at another railway station;
- failure of the locomotive and requiring to keep it warm;
- keeping of the locomotive warm and comfortable conditions for drivers.
Taking into consideration its economic efficiency, the multipurpose installation has maximum efficiency for freight and shunting operation and less efficiency in passenger operation. Also the maximum savings are during winter and minimal during summer.
In the following there is presented an example for realisation of the invention, in connexion with fig. 1 and fig. 2, which represents:
Fig. 1 - Autonomous multipurpose installation for optimize the functioning of diesel locomotive when it is in "OPERATING" mode
Fig. 2 - Autonomous multipurpose installation for optimize the functioning of diesel locomotive when it is in "SHED" mode
The principle of the multipurpose installation for optimize the functioning of diesel locomotive, when the locomotive is in operating mode, according to the invention, is shown in Figure 1 and consists of: auxiliary group (1) is the independent auxiliary energy source S3, three-position switch ("OPERATING", "O" "SHED") (2) through this is selected the operating mode of the installation according to the locomotive activity, a PLC (3) which ensures automatic control, supervision of operation and data recording for the entire multipurpose installation, fuel locomotive installation (4), cooling system (5) of the traction diesel engine (6) either directly or through the heat exchanger (30), battery set (7), voltage adapter (8) through which the locomotive auxiliary services are supplied from the auxiliary group, diagnosis and data recording system (9), ground transmission system for information (10), display for displaying data and failures (1 1). The auxiliary services supplied from auxiliary group (1 ) are: vigilance and control device (12), driver's cab air conditioning (13), locomotive controls (14), lighting and locomotive signalling (15), other auxiliary services of diesel locomotive (16), the air compressor driven by an electric motor (17) which can be DC or three-phase asynchronous in which case it is powered by the voltage adapter (18) from the terminalsiof the three-phase synchronous generator of the auxiliary group (1).
With the help of the auxiliary group (1) can be supplied with electricity one or two electric traction motors (19), via the voltage adapter (20), providing the movement of isolated locomotive on short distances.
With the help of the auxiliary group (1) by the voltage adapter (28), together with the battery set (7) or capacitors may be carried out the starting of the locomotive traction diesel engine (6). The solution reduces the capacity of locomotive storage battery in proportion to the part that is taken by the auxiliary group.
If the traction diesel engine (6) is started with the pneumatic starter, the auxiliary group (1) ensures feeding air compressor (17) at any time, producing compressed air necessary for engine start-up through the installation (29).
The principle of the multipurpose installation for optimize the functioning of diesel locomotive, when the locomotive is in shed mode, according to the invention, is shown in Figure 2 and consists of: auxiliary group (1), three-position switch (2) on "SHED" position, PLC control, diagnostics and records (3), fuel locomotive installation (4), cooling system (5) of the traction diesel engine (6), battery set (7), voltage adapter (8), diagnosis and data recording system (9), ground transmission system for information (10), display for displaying data and failures (1 1), the voltage sensor (21) for voltage at the battery terminals, secondary pump water (22) for circulating coolant in the cooling traction diesel engine installation, coolant temperature sensor (23), electric or thermal heater (24 ) for coolant, voltage adapter (25) for supplying secondary water pump, installation for closing or opening of the interior and exterior shutters mounted in the air duct of the cooling radiator (26), electric power supply and control unit (27) for the heater of the coolant .
When the three-position switch (2) has passed on "SHED" position, the PLC (3) takes over the monitoring and control system of the multipurpose installation for this functioning condition. Depending on the signals from the coolant temperature sensor (23) or voltage sensor (21) of the battery control, PLC commands the starting or stopping of the diesel engine of the auxiliary group (1). The coolant temperature sensor (23) activates the start when the temperature is equal to the minimum temperature specified by the manufacturer of the traction diesel engine and activates the stop when the temperature increases with about 10° C or other value chosen by the applicant. The voltage sensor (2 It) for the ibattery set commands the start of the auxiliary group when the voltage drops by about 3 volts and its stop when the voltage at the batteries terminal is equal to the nominal value.
With the three-position switch on "SHED" position , the secondary pump water (22) runs constantly and it is feed by the voltage adapter (25) from the battery set (7), ensuring the circulation of coolant through the heater (24) and through the entire cooling system (5) of the traction diesel engine (6). In this way the temperature uniformity is achieved across cooling installation and the formation of cold spots is prevented.
When the coolant temperature reaches the required minimum recommended value, the electric power supply and control unit (27) provides the necessary voltage for the coolant heater (24), which starts the heating process. At 10° C above the minimum temperature specified by the manufacturer of the traction diesel engine, the temperature sensor (23) via the PLC (3), orders the stopping of the auxiliary group (1).
Also with the three-position switch (2) on "SHED" position, the PLC verifies the position of interior and exterior shutters mounted in the air duct of the cooling radiator (26) and orders their closure.
The PLC (3) controls the opening and closing of interior and exterior shutters mounted in the air duct of the radiators in both operating modes of the locomotive (active, shed). Closure occurs as long as the coolant temperature has smaller value than the minimum optimum for the functioning of the traction diesel engine in order to avoid heat loss from the radiator, thus ensuring the operation of diesel engine thrust to the optimum functioning when consumption of diesel fuel is minimal.
The interior and exterior shutters mounted in the air duct of the radiators remove much of the heat loss from radiators and provide keeping warm of the locomotive with minimum fuel consumption.
All data of the keeping warm process are recorded on a memory card and in case of a fault, through the ground transmission system for information (10), the operator is alerted to take necessary measures.
When the locomotive is in active mode, the three-position switch (2) is set to "OPERATING". The command of start - stop of the auxiliary group (1) of the multipurpose installation is done manually by the locomotive driver. Since it has started the auxiliary group, the PLC (3) controls all the operation process of the entire system except its stop command.
The multipurpose installation name comes from the fact that it provides the following functions: - supplies all the auxiliary services of the locomotive when it is operating and must not develop the traction force hauling a train or running isolate, without deviating from the rail legislation: air compressor (17), vigilance control device (12), driver's cab air conditioning (13), locomotive controls (14), lighting and locomotive signalling (15), other auxiliary services specific to each type of locomotive (16), battery set (7);
- movement of isolated locomotive on short distances, in stations and depots, by supplying with electricity for one to two electric traction motors (19) from the auxiliary group (1) via voltage adapter (20);
- participation in the starting process of the traction diesel engine (6) via the voltage adapter (28) from the auxiliary group (1) helping the battery set (7) or capacitors. If traction diesel engines are starting with pneumatic starter (29), the air compressor (17) can be supplied at any time by the auxiliary group (1), thus ensuring the necessary air for the starting process;
- when the locomotive is in shed mode and the three-position switch (2) is set to "SHED", the PLC (3) takes the control of the entire system, providing the start and stop of the auxiliary group (1), keeping the traction diesel engine (6) warm and charging the battery set (7), so that the locomotive is ready at any moment to be put-in operation state.
- all processes performed by multipurpose installation are monitored, recorded and diagnosed by an automatic control and diagnosis system, avoiding the subjective human intervention.
Name of optimize the functioning of diesel locomotive refers to the taking-over by the multipurpose installation through the auxiliary group ( 1) - the third energy source S3, of those phases of the rail operation which do not require the traction force and in which the traction diesel engine is operated in idle mode, thus providing the following benefits:
- reduces the idle time by 50% if it is considered idle the time with value greater than 5 minutes;
- reduces the operating time of traction diesel engine with 30 - 40%;
- traction diesel engine is operated at an optimum thermal regime with a minimum fuel consumption and low pollutant effect;
- reduces the consumption of diesel fuel and oil of the traction diesel engine;
- reduces the wear of the traction diesel engine and of the auxiliary services of the locomotive proportional to the reduction in operating time;
- reduces the pollution by the equivalent of diesel fuel and oil economy;
- reduces the noise caused by the diesel traction engine running at idle; - the proportion 'of energy consumption of auxiliary services compared tq the energy consumption for traction operation is reduced in proportion to the reduction of traction diesel engine operating time;
- increases the hourly average power developed by the traction diesel engine in traction mode, proportional to the reducing of the idling time.

Claims

1. The autonomous multipurpose installation for optimize the functioning of diesel locomotive, characterized by that, it provides to the locomotive, through auxiliary group diesel engine - three phase synchronous generator (1), the energy independence from the sources existing on the locomotive and from those outside it, being the third energy source of the locomotive used in all situations for activities of railway operation, when is not required the traction regime, both stationary and when hauls a train or isolated, without restrictions, taking over functions of the traction diesel engine, with compliance to the rail legislation, with four areas of application: when the locomotive is active it reduces the idling time of the traction diesel engine, when the locomotive is draw ensures keeping warm traction diesel engine and battery set, it can provide movement of the locomotive on short distance in the railway stations and in the depots by powering one or two electric traction motors and it can participate, together with the battery set or capacitors to the start of the traction diesel engine or can provide compressed air at all times when traction diesel engine start is made with an pneumatic starter.
2. The installation according to claim 1 , is characterized in that, when the locomotive is in the active mode, selected by the three-position switch (2), multipurpose group consisting of an auxiliary diesel engine - synchronous generator (1 ), connected to the cooling system of the diesel engine (5) directly or via a heat exchanger (30), to the fuel locomotive installation (4) and to the locomotive wiring through the voltage adapter (8) supplying auxiliary services: vigilance control device (12), driver's cab air conditioning (13), locomotive controls (14), lighting and locomotive signalling (15), other auxiliary services specific to each type of locomotive (16), electric compressor for compressed air (17) for brake and pneumatic command supplied either in DC or AC tri phase by voltage adapter (18), charging of the battery set (7), the whole installation being manually controlled from the driver's cab of the engine driver but with the recording of all processes with PLC (3), diagnosis and data recording system (9) on a memory card, a ground transmission system of the main operating parameters and failure (10) and a display (1 1 ) mounted in the driver's cab for displaying operating parameters and failures of the installation. Thus, the multipurpose installation takes on the role of traction diesel engine when the locomotive does not need to develop the traction force.
3. The installation according to claim 1 , characterized in that, when the locomotive is draws in depot or in railway station and the three-position switch (2) is on the "SHED" position, ensures keeping warm the traction diesel engine and batteries set with minimal energy consumption and consists of the auxiliary group diesel engine - tri phase synchronous generator (1), connected to the cooling system (5), fuel locomotive installation (4), electrical system through voltage adapter (8), PLC (3) which controls the closing of interior and exterior shutters mounted in the air duct of the cooling radiator (26), coolant temperature sensor (23) that at the minimum temperature prescribed by the manufacturer of the diesel engine, via the same PLC, controls the power supply (27) of the electric or thermal heater (24), the coolant being circulated permanently by secondary pump water (22) powered by the voltage adapter (25) from the battery set (7), and for maintaining charged the battery set, voltage sensor (21) controls via the PLC the operation of the auxiliary group while the whole process of keeping warm the engine and the battery is recorded in the diagnosis system (9), transmitted to the ground the main operating parameters (10) and warns the operator from centre operation when an event of a fault appears and displays on the display (1 1) the operating parameters and possible failures, the entire system works automatically for the entire period as the locomotive is in the shed without requiring human presence.
4. The installation according to claim 1 , characterized in that, it can provide necessary energy for short movement of the locomotive on short distance in the railway stations and in the depots by powering one or two electric traction motors (19) by the voltage adapter (20) which contains locomotive control elements in driver cab, thereby avoiding traction diesel engine to start or the presence of another locomotive to haul.
5. The installation according to claim 1, characterized in that, it can participate by the voltage adapter (28) to the starting process of the traction diesel engine (6) together with the batteries set (7) or capacitors, the locomotive battery capacity may be diminish proportional to the level of participation in the process of starting the system, or if the traction diesel engine is provided with a pneumatic starter, it ensure at all times the necessary compressed air by the air compressor (17) and start-up air installation(29), in which case the accumulator battery capacity may diminish up to the value which will allow the auxiliary group to start and to supply the lighting and the controls of the locomotive.
6. The installation according to claim 3, is recommended for the keeping warm also when the voltage at the terminals of the battery set (7) decreases more 3V under the nominal value or other value specified by user, via the voltage sensor (21), even if the coolant does not require heating, the installation is operating until the voltage at the battery terminals has the nominal value.
7. Installation, according to claim 3, PLC (3), on putting the three-position switch (2) to the "SHED" position, checks if the interior and exterior shutters mounted in the air duct of cooling radiators are closed and controls their closure in order to reduce heat losses from radiators and when they require keeping warm, providing traction diesel engine operation at the temperature prescribed by its manufacturer.
8. The cooling system, according to claim 2, of the diesel engine of the auxiliary group diesel engine - synchronous three-phase generator (1) can be connected to the cooling system of the traction diesel engine, either directly to form a common cooling system, or indirectly by heat exchanger (30), or completely separated, but the first option is optimal because the two engines kept each other warm, and the auxiliary unit does not require an own installation for ventilation and a cooling radiator, and also its heat energy excess thereof is used to warm the traction diesel engine coolant.
9. The autonomous multipurpose installation for optimise the functioning of diesel locomotive, according to claims 2 ÷ 8, characterized in that it has the ability to reduce the over-consumption of fuel due to: the idle traction diesel engine, the high energy consumption of auxiliary services and the operation of the diesel engine at a thermal regime under the values prescribed by its manufacturer, their effect being reduced by the auxiliary group diesel engine - synchronous three-phase generator (1) as a third source of energy that takes over the role of the diesel engine when the locomotive does not develop traction force and also reducing the idling time and energy consumption of auxiliary services, so that their share relative to energy consumed in the traction operation of the locomotive is reduced, and by keeping the traction diesel engine warm by the auxiliary group (1) through the heater ( 24) and with the closure of interior and exterior blinds system of the radiator coolant (26) it reduces the energy consumption while ensuring the necessary conditions for operation of the traction diesel engine at optimal thermal regime prescribed by its manufacturer, also reduces the cost of the traction diesel engine and auxiliary services maintenance due to the reduction of their operating time and they all have the effect of directly reducing the environmental pollution.
EP16717721.1A 2016-01-06 2016-01-14 Autonomous multipurpose installation for optimize the functioning of diesel locomotives Ceased EP3452354A1 (en)

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ROA201600008A RO131114A0 (en) 2016-01-06 2016-01-06 Multipurpose autonomous installation for optimizing diesel locomotive operation
PCT/RO2016/000005 WO2017119826A1 (en) 2016-01-06 2016-01-14 Autonomous multipurpose installation for optimize the functioning of diesel locomotives

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CN109278765B (en) * 2018-09-19 2024-02-13 中车资阳机车有限公司 Main line hybrid power locomotive group control system
CN111509314A (en) * 2020-04-28 2020-08-07 福开尔（西安）电气有限公司 Energy storage cabin integrated management equipment

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RO87146A2 (en) 1983-01-19 1985-08-31 Depoul Cfr,Ro ECONOMIC INSTALLATION OF THE AUXILIARY SERVICES OF THE LOCOMOTIVE DIESEL
RO106980B1 (en) 1992-01-20 1993-08-30 Mihai Marcu Running installation of diesel-locomotive without storage battery
DE102006043927A1 (en) * 2006-09-14 2008-03-27 Voith Turbo Lokomotivtechnik Gmbh & Co. Kg Energy supply system of a diesel locomotive
US7769537B2 (en) * 2008-05-01 2010-08-03 Power Drives, Inc Auxiliary locomotive engine warming system
SK288174B6 (en) * 2010-03-01 2014-03-04 EVPĂš, a. s. Method of avoiding idling of motor shunting locomotives
RO126933B1 (en) 2011-08-25 2015-09-30 Mihai Marcu Plant for increasing efficiency of diesel engines in locomotives
RO129356A0 (en) 2013-06-03 2014-04-30 Mihai Marcu Independent installation for keeping warm and economically exploiting locomotive diesel engines

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