CN101283170B - Integrated engine control and cooling system for diesel engines - Google Patents
Integrated engine control and cooling system for diesel engines Download PDFInfo
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- CN101283170B CN101283170B CN2006800371876A CN200680037187A CN101283170B CN 101283170 B CN101283170 B CN 101283170B CN 2006800371876 A CN2006800371876 A CN 2006800371876A CN 200680037187 A CN200680037187 A CN 200680037187A CN 101283170 B CN101283170 B CN 101283170B
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- freezing mixture
- locomotive
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- cooler
- mixture stream
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Abstract
A locomotive includes an engine (12), an intercooler (16), and an oil cooler (28), each having respective cooling passages formed therein. The locomotive also includes a cooling system (10) in selective communication with the respective cooling passages for selectively providing a first coolant (56) and a second coolant (52) at a higher temperature than the first coolant to the cooling passages. A method of operating the cooling system includes providing, in a first mode, a first coolant flow (26) to the intercooler and a second coolant flow (30) to the oil cooler at a first temperature different than the first coolant flow to achieve preferential cooling of the intercooler. The method also includes providing, in a second mode, the first coolant flow to the intercooler and the second coolant flow to the oil cooler at a second temperature different than the first coolant flow to achieve preferential cooling of the oil cooler.
Description
The application requires the U.S. Provisional Application No.60/723 of submission on October 5th, 2005,803 preference, and its complete content is quoted and is incorporated into this.
Technical field
The present invention relates in general to internal-combustion engine, relates in particular to a kind of cooling system and engine control that is used for the turbo-charged diesel of engine.
Background technique
Internal-combustion engine such as the turbo-charged diesel that is used for rail locomotive, needs cooling system to limit the temperature of various engine components.Known ground, internal combustion (IC) Engine Design is useful on circulating coolant to remove the internal cooling channel of heat energy from engine components.Lubricant oil circulates in whole motor to reduce friction, and this lubricant oil also can absorb heat, therefore, also needs to cool off the temperature that influences its lubricity nocuously to avoid reaching.Diesel engine uses turbosupercharger to increase power to be compressed to higher density by the air inlet of will burning usually.This compression can cause the combustion air heating, and this combustion air must cool off subsequently before use, thereby makes motor have the high volumetric efficiency and the low emission of exhaust emission.For the situation of movement such as rail locomotive, unique available radiator is an ambient air.The known cooling medium that uses pumping is such as water, heat is sent to the radiation organ pipe with radiating fin.This radiation organ pipe is sent to surrounding atmosphere with heat then, and this process is provided by supercharging convection current usually that provided by fan.
Usually wish the burning air inlet of internal-combustion engine and its association is remained on a plurality of different temperature, thereby optimize the performance of motor.Therefore, be in the cylinder sleeve that freezing mixture under the temperature can be supplied to turbo-charging diesel motor, the freezing mixture that is under the low temperature more can be supplied to interstage cooler with cooling combustion air by compression.This system can use single pump, heat exchanger and heat-operated valve to realize two cooling purposes.
Other turbo-charged diesel cooling schemes can use sub-cooler outside radiator.This sub-cooler generally is arranged in the upstream of the radiator of cooling air flow.For locomotive application, the ambient air that flows through radiator is generally provided by multi-speed fan, because radiator is positioned at the top of locomotive.Use sub-cooler can realize the big temperature difference between engine temperature and the combustion air temperature.
Summary of the invention
The present inventor recognizes originally, is supplied to the freezing mixture stream of the different parts of turbo-charged diesel such as locomotive engine by control, can realize the different ideal operation characteristics of motor under different operational conditions.The present invention includes cooling system, this cooling system has the coolant circuit of separation, makes freezing mixture stream have different cooling degree.In an embodiment, cooling system can adopt the operation of first refrigerating mode, the first freezing mixture stream is supplied to the interstage cooler of motor, the second freezing mixture stream that will be in first temperature different with first freezing mixture stream is supplied to the oil cooler of motor, thereby realizes the preferred cooling of interstage cooler.First pattern can help or optimize the emission level that is produced by motor, and the horsepower output with motor simultaneously remains on desirable value.This cooling system can be operated by second refrigerating mode, and the first freezing mixture stream is supplied to interstage cooler, and the second freezing mixture stream that will be in first temperature different with first freezing mixture stream is supplied to oil cooler, thereby realizes the preferred cooling of oil cooler.This second pattern can help or optimize the horsepower output that is produced by motor.
Description of drawings
Fig. 1 is the schematic representation of exemplary embodiment that is used for the cooling system of turbo-charged diesel.
Fig. 2 is the schematic representation of cooling system that is configured to Fig. 1 of different refrigerating modes.
Fig. 3 is the plotted curve of engine performance of exemplary refrigerating mode of the cooling system of the Fig. 1 under the different operating environmental conditions.
Embodiment
Fig. 1 is used for the schematic representation of turbo-charged diesel 12 such as the exemplary embodiment of the cooling system 10 that can be used for rail locomotive.This cooling system 10 comprises turbo-charged diesel 12, and this diesel engine receives combustion air 14 streams that flow through interstage cooler 16, and this interstage cooler 16 is used to cool off this combustion air 14.The combustion air 14 that flows through interstage cooler 16 is cooled off by first freezing mixture stream or intercooler coolant flow 26, for example uses the heat exchanger in the combustion air 14 that is arranged in the interstage cooler 16.The intercooler coolant flow 27 of being heated by interstage cooler 16 dischargings can be mixed with the flow of engine coolant 18 that is supplied to motor 12.In one aspect of the invention, thus be supplied to the amount of the intercooler coolant flow 26 of interstage cooler 16 can be controlled the action required condition of realization motor 12, such as required emission production level.
Motor 12 also comprises the cooling channel, and this cooling channel receives the stream that is cycled through the flow of engine coolant 18 of radiator 32 and one or more sub-cooler 34,36 by water pump 20.Heated engine coolant 40 flow into radiators 32 and the phase I by impel cooling air 42 streams that flow through radiator 32 to cool off by one or more fans 38.When leaving radiator 32, phase I has cooled off freezing mixture stream 44 and has been divided into and supplies with first portion 46 that postbacks motivation 12 and the second portion 48 that is supplied to the first sub-cooler 34, is lower than the phase I and has cooled off the temperature of freezing mixture stream 44 additionally to be cooled in second stage.When leaving the first sub-cooler 34, second stage has been cooled off freezing mixture stream 50 and has been divided into first freezing mixture, and perhaps first portion 52, and second portion 54.Second portion 54 is supplied to the second sub-cooler 36 additionally cooling off in the phase III, makes second freezing mixture that leaves the second sub-cooler 36 or chilled freezing mixture stream 56 of phase III have and is lower than the temperature that second stage has been cooled off freezing mixture stream 50.
In one aspect of the invention, leave corresponding sub-cooler 34,36 and distribute the parts become cooling system 10 to provide the stream 52,56 of cooling can be controlled to realize the action required condition of motor 12.In an embodiment, three- way valve 58,60 can be arranged to optionally control the respective coolant flow 52,56 that is supplied to oil cooler 28 and interstage cooler 16.The 58 reception phase IIIs of valve have cooled off freezing mixture stream 56 and have controlled the phase III that is supplied to interstage cooler 16 and cooled off the amount of the first portion 62 of freezing mixture stream 56, and the amount that is supplied to the second portion 64 of oil cooler 28.Valve 60 receives second stage and has cooled off the amount of first portion 68 that the first portion 52 of freezing mixture stream 50 and second stage that control is supplied to interstage cooler 16 have been cooled off the first portion 52 of freezing mixture stream 50, and the amount that is supplied to the second portion 66 of oil cooler 28.
In one aspect of the invention, controller 70 receives the input signal that comes from one or more sources, imports 76 such as environmental sensor 72, locomotive operation sensor 74 and/or operator.Environmental sensor 72 can comprise environment temperature sensor and/or height finderheigt indicator.Locomotive operation sensor can comprise that one or more coolant water temperature sensors, oil temperature sensor, horsepower require control and/or emission sensor.Operator's input can comprise that it can comprise the specific operation mode command by the locomotive operation order of the locomotive operators input of operation locomotive.Based on this input, but controller 70 operations flows brake control valves 58,60 are supplied to the freezing mixture stream 26,30 of interstage cooler 16 and oil cooler 28 with control, thereby realize required engine operation mode.For example, can use such as the technology of filtration of the Kalman in feedback and the feedforward control ring or time series Taylor series expansion algorithm definite by the respective coolant flow part 62,64,66 of valve 58,60 supplies and 68 amount.On the other hand, controller 70 may command miscellaneous parts, such as other valves, pump, fan and/or thermostat so that the stream of freezing mixture, oil and air in the system 10 to be provided.
This cooling system 10 can comprise can be by the multiple modes of operation of controller 70 controls.For example, the path by control selects freezing mixture to flow according to required operator scheme, can preferentially be supplied to the coldest freezing mixture interstage cooler 16 or oil cooler 28.Fig. 1 illustrates the location corresponding to the flow control valve 58,60 of exemplary first operator scheme, and required emission level that is produced by motor to provide is provided for it, keeps required engine horsepower level simultaneously.In first pattern, can position cooled off freezing mixture stream 56 phase III by for example 70 pairs of valves 58 of controller and be directed to interstage cooler 16 from the second sub-cooler 36, make the coldest freezing mixture that exists in interstage cooler 16 receiving systems 10.Therefore, compare with the miscellaneous part of this system 10 of cooling, it is favourable that combustion air 14 is cooled off.On the other hand, valve 58,60 can be positioned to allow first portion 62 to mix with first portion 68, thereby produces the mixing intercooler coolant flow 26 that is supplied to interstage cooler 16.In first pattern, intercooler coolant flow 26 can comprise the stream 56 more than first portion 52.
Fig. 2 illustrates the flow control valve 58,60 that the location is used for exemplary second operator scheme, and for example (when surpassing this temperature, emission request may be difficult to realize) is optimized the required drive level that is produced by motor to provide to it under an ambient temperature.In second pattern, valve 58 is positioned to that the phase III has been cooled off freezing mixture stream 56 and is directed to oil cooler 28 from the second sub-cooler 36, makes it receive the coldest freezing mixture in this system 10.Therefore, compare with the cooling miscellaneous part, it is favourable or optimization that oil 22 is cooled off.The first portion 52 that valve 60 is positioned to second stage has been cooled off freezing mixture stream 50 is directed to interstage cooler 16 from the first sub-cooler 34, makes the freezing mixture stream that is supplied to interstage cooler 16 flow hotter relatively than the freezing mixture that is supplied to oil cooler 28 thus.Thereby valve 58,60 also can be positioned to allow second portion 66 to mix with second portion 64 and produce the mixing oil coolant flow 30 that is supplied to oil cooler 28.In second pattern, oil coolant flow 30 can comprise that having cooled off freezing mixture above the phase III of first portion 52 flows 56.
In the 3rd exemplary patterns of carrying out under can be with the Ambient Operating Temperature that is lower than temperature when operating with first pattern, freezing mixture stream can be controlled so as to realizes required Engine Durability.Under any pattern, Engine Durability is not all sacrificed.
Fig. 3 is illustrated in curve Figure 78 of engine performance of the exemplary refrigerating mode of the cooling system 10 under the various operating environment conditions.Curve 80 expressions are according to helping second pattern of power in the operation than the cooling system under the high ambient temperature 10.Curve 82 expression according to first pattern that helps discharging in operation than the cooling system under the low ambient temperature 10, such as require by management organization under the ambient temperature that is lower than about 86 Fahrenheit temperature, for example on the sea level.
According to above stated specification, the present invention can use the computer program or the engineering that comprise computer software, firmware, hardware or its any combination or sub-portfolio to realize that wherein technique effect provides integrated engine controller and the cooling system that is used for diesel engine.Adopt the program of any gained thus of embodied on computer readable code form can realize or be arranged in one or more computer-readable mediums, thus, obtain computer program, promptly according to product of the present invention.Computer-readable medium can be for example fixing (firmly) dish, floppy disk, CD, tape, semiconductor storage such as read-only memory (ROM) etc., and perhaps any transmission/receiver media is such as internet or other communication networks or link.Comprise computer code product can by carry out the code that directly comes from a medium, by code is copied to another medium or transmits code by network and make and/or use from a medium.
The computational science those skilled in the art can combine the computer hardware of above-mentioned software with correct overall purpose or special purpose such as microprocessor, thereby form computer system or the computer subsystem of realizing the inventive method.Being used for making, using or sell equipment of the present invention can be one or more processing systems, including, but not limited to any sub-component of central processing unit (CPU), internal memory, storage device, communication linkage and device, server, I/O device or one or more processing systems, comprise and realize software of the present invention, firmware, hardware or its combination in any or sub-portfolio.
Though illustrated and described various embodiment of the present invention, be apparent that these embodiments only are schematic.Various changes, improvement and replacement can carried out without departing from the scope of the invention.For example, this system and method can be applied to water-filled wet or wet/dry cooling system.Therefore, only pass through marrow and scope restriction the present invention of claims.
Claims (23)
- One kind in locomotive with motor, interstage cooler and oil cooler the operation cooling system method, each of described motor, interstage cooler and oil cooler all has the corresponding cooling channel that is formed on wherein, and thereby this cooling system optionally is communicated with optionally second freezing mixture that first freezing mixture and temperature are higher than first freezing mixture and is supplied to the cooling channel with corresponding cooling channel, and this method comprises:In first pattern, the first freezing mixture stream is supplied to interstage cooler, the second freezing mixture stream that will be in first temperature that is different from first freezing mixture stream is supplied to oil cooler, cool off with the optimization that realizes interstage cooler, thus the emission level that optimization is produced by motor in the required horsepower output that keeps being produced by motor effectively; AndIn second pattern, the first freezing mixture stream is supplied to interstage cooler, the second freezing mixture stream that will be in second temperature that is different from first freezing mixture stream is supplied to oil cooler, cools off with the optimization that realizes oil cooler, thereby optimizes the horsepower output that is produced by motor effectively.
- 2. method according to claim 1, wherein, first temperature of second freezing mixture stream is higher than the temperature of first freezing mixture stream.
- 3. method according to claim 2 also comprises, in first pattern, first freezing mixture is guided into first freezing mixture stream.
- 4. method according to claim 2 also comprises, in first pattern, will be guided into first freezing mixture stream than first freezing mixture that second freezing mixture is Duoed.
- 5. method according to claim 2 also comprises, in first pattern, will be guided into second freezing mixture stream than second freezing mixture that first freezing mixture is Duoed.
- 6. method according to claim 1, wherein, second temperature of second freezing mixture stream is lower than the temperature of first freezing mixture stream.
- 7. method according to claim 6 also comprises, in second pattern, first freezing mixture is guided into second freezing mixture stream.
- 8. method according to claim 6 also comprises, in second pattern, will be guided into first freezing mixture stream than second freezing mixture that first freezing mixture is Duoed.
- 9. method according to claim 6 also comprises, in second pattern, will be guided into second freezing mixture stream than first freezing mixture that second freezing mixture is Duoed.
- 10. method according to claim 1 also comprises according to the input of the environmental sensor that detects near the environmental conditions the locomotive optionally cooling system being configured to required mode.
- 11. method according to claim 1 also comprises according to the input of the locomotive operation sensor of the operational condition that detects locomotive optionally cooling system being configured to required mode.
- 12. method according to claim 1 also comprises according to the control signal that is provided by locomotive operators optionally cooling system being configured to required mode.
- 13. method according to claim 1 when comprising that also near the locomotive ambient temperature is greater than the predetermined value under the scheduled operation height, is carried out second pattern.
- 14. method according to claim 1 also comprises when locomotive is operated under the condition that emission request is stopped, and carries out second pattern.
- 15. method according to claim 1 also comprises when near the ambient temperature the locomotive is in the prespecified range under the scheduled operation height, carries out first pattern.
- 16. method according to claim 1, also be included in three-mode the first freezing mixture stream is supplied to interstage cooler, the second freezing mixture stream that will be in the 3rd temperature that is different from first freezing mixture stream is supplied to oil cooler, thereby realizes required Engine Durability.
- 17. method according to claim 1 also comprises when near the ambient temperature the locomotive is lower than predetermined value under predetermined operation height, carries out three-mode.
- 18. one kind be used to have motor, the cooling system of the locomotive of interstage cooler and oil cooler, each of described motor, interstage cooler and oil cooler all has the corresponding cooling channel that is formed on wherein, and first cooler and second cooler that optionally are communicated with corresponding cooling channel, thereby second freezing mixture that optionally first freezing mixture and temperature is higher than first freezing mixture is supplied to the cooling channel, and this system comprises:Configurable cooling circuit under first pattern, be used for and be directed to interstage cooler more than first freezing mixture of second freezing mixture, more second freezing mixture is directed to oil cooler, thereby in the required horsepower output that keeps producing, optimize the emission level that motor produces effectively by motorConfigurable cooling circuit under second pattern is used for second freezing mixture more than first freezing mixture is directed to interstage cooler, will be directed to oil cooler more than first freezing mixture of second freezing mixture, thereby optimizes the horsepower output that is produced by motor effectively;First valve is used for optionally controlling first freezing mixture stream of being supplied with by motor;Second valve is used for optionally controlling second freezing mixture stream of being supplied with by motor;Controller is controlled the relevant position of described valve, thereby optionally according to the input that is received by controller cooling system is configured to first pattern and second pattern.
- 19. system according to claim 18, wherein, the signal that is provided by the environmental sensor that detects near the environmental conditions the locomotive is provided in described input.
- 20. system according to claim 18, wherein, described input comprises the signal that the locomotive operation sensor by the operational condition that detects locomotive provides.
- 21. system according to claim 20, wherein, locomotive operation sensor comprises coolant temperature sensor, oil temperature sensor or emission sensor.
- 22. system according to claim 18, wherein, the control signal that is provided by locomotive operators is provided in described input.
- 23. system according to claim 22, wherein, control signal comprises that horsepower requires control signal.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72380305P | 2005-10-05 | 2005-10-05 | |
| US60/723,803 | 2005-10-05 | ||
| US11/366,684 | 2006-03-02 | ||
| US11/366,684 US7131403B1 (en) | 2005-10-05 | 2006-03-02 | Integrated engine control and cooling system for diesel engines |
| PCT/US2006/036524 WO2007040987A1 (en) | 2005-10-05 | 2006-09-19 | Integrated engine control and cooling system for diesel engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101283170A CN101283170A (en) | 2008-10-08 |
| CN101283170B true CN101283170B (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800371876A Expired - Fee Related CN101283170B (en) | 2005-10-05 | 2006-09-19 | Integrated engine control and cooling system for diesel engines |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101283170B (en) |
| ZA (1) | ZA200803499B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2501304B (en) * | 2012-04-19 | 2019-01-16 | Ford Global Tech Llc | Apparatus and method for engine warm up |
| CN104454114B (en) * | 2013-09-22 | 2018-01-19 | 北汽福田汽车股份有限公司 | Temperature control system, Research on Automatic Measuring System of Temperature and vehicle for engine |
| DE102017219939A1 (en) * | 2017-11-09 | 2019-05-09 | Volkswagen Aktiengesellschaft | Cooling circuit for a drive unit of a motor vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201285A (en) * | 1991-10-18 | 1993-04-13 | Touchstone, Inc. | Controlled cooling system for a turbocharged internal combustion engine |
| CN1263582A (en) * | 1998-04-07 | 2000-08-16 | 日本恒温装置株式会社 | Cooling control device of internal combustion engine |
| US6230668B1 (en) * | 2000-05-22 | 2001-05-15 | General Electric Company | Locomotive cooling system |
| CN1605726A (en) * | 2003-10-07 | 2005-04-13 | 株式会社电装 | Cooling water circuit system |
-
2006
- 2006-09-19 CN CN2006800371876A patent/CN101283170B/en not_active Expired - Fee Related
-
2008
- 2008-04-21 ZA ZA200803499A patent/ZA200803499B/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201285A (en) * | 1991-10-18 | 1993-04-13 | Touchstone, Inc. | Controlled cooling system for a turbocharged internal combustion engine |
| CN1263582A (en) * | 1998-04-07 | 2000-08-16 | 日本恒温装置株式会社 | Cooling control device of internal combustion engine |
| US6230668B1 (en) * | 2000-05-22 | 2001-05-15 | General Electric Company | Locomotive cooling system |
| CN1605726A (en) * | 2003-10-07 | 2005-04-13 | 株式会社电装 | Cooling water circuit system |
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| Publication number | Publication date |
|---|---|
| ZA200803499B (en) | 2009-01-28 |
| CN101283170A (en) | 2008-10-08 |
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