WO2012081281A1 - Dispositif de refroidissement de moteur - Google Patents

Dispositif de refroidissement de moteur Download PDF

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Publication number
WO2012081281A1
WO2012081281A1 PCT/JP2011/069533 JP2011069533W WO2012081281A1 WO 2012081281 A1 WO2012081281 A1 WO 2012081281A1 JP 2011069533 W JP2011069533 W JP 2011069533W WO 2012081281 A1 WO2012081281 A1 WO 2012081281A1
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WO
WIPO (PCT)
Prior art keywords
engine
predetermined value
temperature
detected
cooling water
Prior art date
Application number
PCT/JP2011/069533
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English (en)
Japanese (ja)
Inventor
次将 後藤
丸山　研也
Original Assignee
愛三工業株式会社
トヨタ自動車株式会社
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 愛三工業株式会社, トヨタ自動車株式会社 filed Critical 愛三工業株式会社
Priority to US13/823,425 priority Critical patent/US20130284127A1/en
Priority to CN2011800604275A priority patent/CN103261618A/zh
Priority to DE112011104420T priority patent/DE112011104420T5/de
Publication of WO2012081281A1 publication Critical patent/WO2012081281A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/16—Indicating devices; Other safety devices concerning coolant temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F01P2005/125—Driving auxiliary pumps electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2031/00—Fail safe
    • F01P2031/30—Cooling after the engine is stopped

Definitions

  • the present invention relates to an engine cooling apparatus that circulates cooling water to cool an engine, and more particularly to an engine cooling apparatus configured to suppress an increase in engine temperature after the engine is stopped.
  • Patent Document 1 proposes an engine cooling device that can exhibit a sufficient engine cooling effect with a simple and inexpensive device in order to improve the high-temperature restartability of the engine.
  • This apparatus cools the engine by circulating cooling water to the engine, radiator and heater by means of an electric pump.
  • the heater is provided with a cooling fan.
  • an on-off valve is provided in the middle of the cooling water passage connecting the radiator and the electric pump.
  • the engine is closed by closing the on-off valve for a predetermined time after the engine is stopped (at the time of dead soak), and operating the electric pump and the electric fan based on the battery voltage and the engine water temperature to circulate the cooling water only to the engine and the heater. Is supposed to cool.
  • Patent Document 1 does not have a clear configuration regarding the influence of the outside air temperature and how to adjust the operation of the electric pump and the electric fan, and these conditions can be set optimally. There wasn't. For this reason, there exists a tendency for the operation frequency and operation time of an electric pump or an electric fan to increase, and there existed concern that a battery deteriorates.
  • the cooling performance of the engine by the cooling device is affected by the outside air temperature, so it is necessary to consider the difference in outside air temperature.
  • the electric pump and the electric fan are operated uniformly, the battery power consumption becomes excessive, and the battery may be deteriorated quickly.
  • the outside air temperature is low, it is not necessary to operate the electric pump and the electric fan uniformly, and it is possible to efficiently consume power by appropriately shifting the operation timings of both.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to suppress high-temperature restartability and idle rotation stability by suppressing battery deterioration during engine dead soak and efficiently cooling the engine. It is an object of the present invention to provide an engine cooling device that can be made to operate.
  • a first aspect of the present invention is an engine that cools an engine by circulating cooling water to the engine and a radiator by an electric pump and supplying cooling air to the radiator by an electric fan.
  • the cooling water temperature detecting means for detecting the temperature of the cooling water, the outside air temperature detecting means for detecting the temperature of the outside air, and the voltage of the battery that supplies power to the electric pump and the electric fan are detected.
  • a control means for controlling the electric pump and the electric fan based on the voltage of the battery.
  • the electric pump and the electric fan are controlled by the control means based on the temperature of the outside air in addition to the temperature of the cooling water and the voltage of the battery. Therefore, for example, when the temperature of the outside air is low, the operation time and operation frequency of the electric pump and the electric fan can be limited accordingly.
  • control means is configured so that the engine is in a high temperature state based on the detected coolant temperature and the detected outside air temperature when the engine is stopped. It is preferable to operate the electric pump and the electric fan when it is determined whether or not there is a high temperature state.
  • control means is configured such that the detected temperature of the outside air is equal to or higher than a predetermined value, and the detected temperature of the cooling water is a predetermined value. It is preferable to operate the electric fan when the above is true and the detected battery voltage is equal to or higher than the first predetermined value.
  • the outside air temperature is a predetermined value or higher
  • the cooling water temperature is a predetermined value or higher
  • the battery voltage is The electric fan operates in a specific case that is equal to or greater than the first predetermined value, and the operation time and operation frequency of the electric fan can be limited.
  • control means is configured such that the detected outside air temperature is equal to or higher than a predetermined value, and the detected cooling water is It is preferable to operate the electric pump when the temperature is equal to or higher than a predetermined value and the detected battery voltage is equal to or higher than a second predetermined value.
  • the temperature of the outside air is a predetermined value or more
  • the temperature of the cooling water is a predetermined value or more
  • the electric pump operates, and it is possible to limit the operation time and the operation frequency of the electric pump.
  • control means is configured such that the detected temperature of the outside air is equal to or higher than a predetermined value, and the detected temperature of the cooling water is equal to or higher than the predetermined value.
  • the electric fan is operated and the electric pump is not operated. Is preferred.
  • the temperature of the outside air is equal to or higher than a predetermined value
  • the temperature of the cooling water is equal to or higher than the predetermined value
  • the voltage of the battery is the third predetermined value.
  • control means may detect whether the detected temperature of the outside air is less than a predetermined value or the detected temperature of the cooling water. It is preferable not to operate the electric pump and the electric fan when at least one of the following conditions is satisfied: is less than a predetermined value, or the detected battery voltage is less than a third predetermined value.
  • the control means is a fourth method in which the detected battery voltage is smaller than a second predetermined value during the operation of the electric pump and the electric fan. It is preferable to stop the electric pump when it becomes less than the predetermined value.
  • the third predetermined value is smaller than the fourth predetermined value.
  • control means is configured to operate the electric pump and the electric motor when a predetermined post-stop time has elapsed after the engine is stopped. It is preferable to stop the fan.
  • control means preferably calculates the post-stop time based on the detected temperature of the outside air and the detected temperature of the cooling water.
  • the post-stop time is determined according to the difference in the temperature of the outside air and the temperature of the cooling water.
  • control unit sets the required flow rate of the cooling water based on the detected temperature of the cooling water. It is preferable to control the operation of the electric pump based on the determined required flow rate.
  • the electric pump operates based on the required flow rate according to the temperature of the cooling water.
  • the cooling water of the radiator can be cooled, and the relatively low-temperature cooling water can be quickly circulated to the engine when the engine is restarted at a high temperature, so that the engine can be quickly cooled.
  • the cooling water of the radiator can be continuously cooled, and the relatively low-temperature cooling water can be circulated quickly to the engine when the engine is restarted at a high temperature, so that the engine can be quickly cooled.
  • the electric pump and the electric fan do not continue to operate more than necessary at the time of dead soaking, and unnecessary power consumption of the battery can be reduced. Battery deterioration can be suppressed, and the life of the battery can be secured.
  • the electric pump does not operate at a flow rate higher than necessary at the time of dead soaking, and the unnecessary power of the battery Consumption can be reduced, battery deterioration can be suppressed, and battery life can be ensured.
  • FIG. 1 is a schematic configuration diagram illustrating an engine cooling device according to an embodiment.
  • the flowchart which shows the content of the control program which concerns on the embodiment and the control unit performs.
  • the three-dimensional map which shows the relationship between cooling water temperature, external temperature, and fan drive request
  • the three-dimensional map which shows the relationship between cooling water temperature, external temperature, and pump drive request
  • the two-dimensional map which shows the relationship between cooling water temperature and pump drive request
  • the graph which shows the relationship between the amount of discharge electricity and battery life in the same embodiment.
  • the time chart which shows the behavior of various parameters concerning the embodiment.
  • the time chart which shows the behavior of engine rotational speed, operation
  • the graph which shows the change of the cooling water temperature with respect to the drive time of an electric fan and an electric pump compared with a prior art example concerning the embodiment.
  • the graph which shows the change of each part engine temperature with respect to the drive time of an electric fan and an electric pump compared with a prior art example in the same embodiment.
  • Fig. 1 shows a schematic configuration diagram of an engine cooling device.
  • This cooling device cools the engine body 2 by circulating cooling water to the engine body 2 and the radiator 3 by the electric pump 1 and supplying cooling air to the radiator 3 by the electric fan 4.
  • a water jacket 11 through which cooling water flows is provided inside the engine body 2.
  • the water jacket 11 includes an inlet 11a and an outlet 11b, and cooling water entering from the inlet 11a circulates inside the engine body 2 and exits from the outlet 11b.
  • the electric pump 1 is provided in the engine body 2 corresponding to the inlet 11a.
  • the outlet 11 b of the water jacket 11 is connected to the inlet 3 a of the radiator 3 through the cooling water pipe 12.
  • the outlet 3 b of the radiator 3 is connected to the suction port of the electric pump 1 via the cooling water pipe 13.
  • the cooling water circulates in the water jacket 11 and flows from the outlet 11b to the radiator 3 through the cooling water pipe 12.
  • the cooling water flowing to the radiator 3 is radiated by the radiator 3 and then sucked into the suction port of the electric pump 1 through the cooling water pipe 13 and discharged from the discharge port.
  • the radiator 3 is provided with two electric fans 4. When these electric fans 4 operate, cooling air is supplied to the radiator 3.
  • a water temperature sensor 21 corresponding to cooling water temperature detecting means for detecting the temperature (cooling water temperature) THW of the cooling water is provided.
  • an outside air temperature sensor 22 corresponding to outside air temperature detecting means for detecting the outside air temperature (outside air temperature) THA is provided.
  • This cooling device includes a control unit 30 corresponding to a control means for controlling the electric pump 1 and the electric fan 4.
  • the control unit 30 is connected to the electric pump 1, the electric fan 4, the water temperature sensor 21, and the outside air temperature sensor 22.
  • the control unit 30 is connected with an ignition switch (IG / SW) 23 and a battery 24.
  • the cooling water temperature THW at the outlet 11 b of the water jacket 11 is input from the water temperature sensor 21 to the control unit 30.
  • the outside air temperature THA is input to the control unit 30 from the outside air temperature sensor 22.
  • the control unit 30 receives a signal related to starting and stopping of the engine from the IG / SW 23.
  • the battery voltage GBA is input from the battery 24 to the control unit 30.
  • the control unit 30 corresponds to battery voltage detection means for detecting the battery voltage GBA.
  • the control unit 30 is electrically driven based on the cooling water temperature THW detected by the water temperature sensor 21, the outside air temperature THA detected by the outside air temperature sensor 22, and the detected battery voltage GBA during a dead soak after the engine is stopped.
  • the pump 1 and the electric fan 4 are controlled.
  • the control unit 30 determines whether or not the engine body 2 is in a high temperature state based on the detected coolant temperature THW and the detected outside air temperature THA when the engine is stopped, and determines that the engine body 2 is in a high temperature state. In this case, the electric pump 1 and the electric fan 4 are operated.
  • step 100 the control unit 30 determines whether or not the IG / SW 23 is turned off. If this determination result is negative, the control unit 30 once ends the subsequent processing. If this determination result is affirmative, the control unit 30 proceeds to step 101.
  • step 101 the control unit 30 reads the detected coolant temperature THW, the outside temperature THA, and the battery voltage GBA, respectively.
  • step 102 the control unit 30 calculates the fan drive request time RTF.
  • the control unit 30 performs this calculation by referring to a three-dimensional map using the cooling water temperature THW, the outside air temperature THA, and the fan drive request time RTF as parameters. In this map, for example, when the outside air temperature THA is “45 (° C.)” and the cooling water temperature THW is “105 (° C.)” or more, the fan drive request time RTF is “180 (sec)”.
  • step 103 the control unit 30 calculates a pump drive request time RTP.
  • the control unit 30 performs this calculation by referring to a three-dimensional map using the cooling water temperature THW, the outside air temperature THA, and the pump drive request time RTP as parameters. In this map, for example, when the outside air temperature THA is “45 (° C.)” and the coolant temperature THW is “105 (° C.)” or more, the pump drive request time RTP is “160 (sec)”.
  • step 104 the control unit 30 calculates the pump drive request flow rate RFP.
  • the control unit 30 performs this calculation by referring to a two-dimensional map using the cooling water temperature THW and the pump drive request flow rate RFP as parameters, as shown in FIG. In this map, for example, when the coolant temperature THW becomes “105 (° C.)” or more, the pump drive request flow rate RFP becomes “40 (L / m)”.
  • step 105 the control unit 30 determines whether or not the outside air temperature THA is equal to or higher than a predetermined value tha1. As this predetermined value tha1, for example, “35 (° C.)” can be applied. If this determination result is affirmative, the control unit 30 moves the process to step 106.
  • a predetermined value tha1 for example, “35 (° C.)” can be applied.
  • step 106 the control unit 30 determines whether or not the coolant temperature THW is equal to or higher than a predetermined value thw1. As this predetermined value thw1, for example, “105 (° C.)” can be applied. If the determination result is affirmative, the control unit 30 proceeds to step 107.
  • a predetermined value thw1 for example, “105 (° C.)” can be applied.
  • step 107 the control unit 30 determines whether or not the battery voltage GBA is equal to or higher than a first predetermined value bat1.
  • a first predetermined value bat1 for example, “11 (V)” can be applied. If this determination result is affirmative, the control unit 30 moves the process to step 108.
  • step 108 the control unit 30 determines whether or not the post-IGOFF time TOF corresponding to the post-stop time is less than the fan drive request time RTF. As this fan drive request time RTF, for example, “180 (sec)” can be applied. If this determination result is affirmative, the control unit 30 moves the process to step 109.
  • step 109 the control unit 30 turns on the electric fan 4. Thereby, cooling air is supplied to the radiator 3.
  • Step 110 the control unit 30 determines whether or not the battery voltage GBA is equal to or greater than a third predetermined value bat3 that is smaller than the first predetermined value bat1. As this third predetermined value bat3, for example, “10 (V)” can be applied. If this determination result is affirmative, the control unit 30 moves the process to step 111.
  • control unit 30 turns off the electric fan 4 in step 116. Thereby, the supply of the cooling air to the radiator 3 is stopped.
  • step 111 the control unit 30 determines whether or not the battery voltage GBA is equal to or higher than a second predetermined value bat2. If the determination result is affirmative, the control unit 30 proceeds to step 112. As the second predetermined value bat2, for example, “11 (V)” can be applied.
  • step 112 the control unit 30 determines whether or not the post-IGOFF time TOF is less than the pump drive request time RTP. As this pump drive request time RTP, for example, “160 (sec)” can be applied. If the determination result is affirmative, the control unit 30 moves the process to step 113.
  • step 113 the control unit 30 turns on the electric pump 1. Thereby, the cooling water is circulated through the engine body 2 and the radiator 3.
  • step 114 the control unit 30 determines whether or not the battery voltage GBA is less than a fourth predetermined value bat4. If this determination result is negative, the control unit 30 returns the process to step 112. If this determination result is affirmative, the control unit 30 moves the process to step 115. The same applies to the case where the determination result of steps 111 and 112 is negative or the processing of step 116 is executed.
  • step 111,112,114,116 transfers from step 111,112,114,116, and the control unit 30 turns off the electric pump 1 by step 115.
  • FIG. Thereby, the circulation of the cooling water to the engine main body 2 and the radiator 3 is stopped, and the subsequent processing is once ended.
  • FIG. 6 is a graph showing the relationship between the amount of discharged electricity (Ah / time) and the battery life (year). From this graph, it is necessary to set the amount of discharged electricity to “0.6 (Ah / time)” in order to make the battery life “3 years”.
  • the sum of the power consumption “100 (W)” of the electric fan 4 and the power consumption “20 (W)” of the electric pump 1 is “120 (W)”.
  • the third predetermined value bat3 is set to “10 (V)” corresponding to the lowest battery voltage.
  • the engine is stopped and the engine speed NE becomes “0”.
  • the outside air temperature THA is equal to or higher than a predetermined value thal (“35 (° C.)”)
  • the cooling water temperature THW is equal to a predetermined value thw1 (“105 Since the battery voltage GBA is equal to or higher than the first predetermined value bat1 (“11 (V)”) as shown in FIG.
  • the electric fan 4 is turned on and started.
  • the electric fan 4 is turned on and the battery voltage GBA is equal to or higher than the second predetermined value bat2 (“11 (V)”) as shown in FIG. 7E, the electric fan 4 is shown in FIG. Thus, the electric pump 1 is turned on and started.
  • the electric pump and the electric fan are the same during the dead soak after the IG / SW is turned off.
  • the pump required drive flow rate was determined in accordance with the timing and time. For this reason, the battery voltage GBA has decreased relatively rapidly, the cooling water temperature THW has decreased relatively slowly, and the temperature of each part of the engine has increased relatively rapidly.
  • the pump drive request flow rate RFP is determined from the cooling water temperature THW at that time.
  • the electric pump 1 and the electric fan 4 are operated simultaneously, and then the electric pump 1 is stopped first, and after a short time, the electric fan 4 is stopped.
  • the battery voltage GBA decreases relatively slowly
  • the cooling water temperature THW decreases relatively quickly
  • the temperature of each part of the engine increases relatively slowly.
  • the engine fan temperature and the electric pump 1 are controlled during the dead soak of the engine to keep the temperature of each part of the engine lower than that of the conventional example.
  • the battery voltage can be kept high.
  • FIG. 9 the change of the cooling water temperature THW with respect to the drive time of the electric fan 4 and the electric pump 1 is shown by a graph in comparison with the conventional example. As can be seen from this graph, in the present embodiment, it is understood that the cooling water temperature THW is rapidly reduced as compared with the conventional example.
  • FIG. 10 is a graph showing changes in the temperature of each part of the engine with respect to the drive time of the electric fan 4 and the electric pump 1 in comparison with the conventional example.
  • the electric pump 1 and the electric fan 4 are controlled by the control unit based on the outside air temperature THA in addition to the cooling water temperature THW and the battery voltage GBA. 30. Therefore, when the outside air temperature THA is low, the operation time and the operation frequency of the electric pump 1 and the electric fan 4 can be limited accordingly.
  • the outside air temperature THA is a predetermined value tha1 or higher
  • the cooling water temperature THW is a predetermined value thw1 or higher
  • the battery voltage GBA is a first predetermined value bat1 or higher and a second predetermined value bat2 or higher.
  • the electric pump 1 and the electric fan 4 operate, and the operation time and the operation frequency of the electric pump 1 and the electric fan 4 can be limited. For this reason, the power consumption of the battery 24 can be reduced during engine dead soaking, and the deterioration of the battery 24 can be suppressed, and the engine main body 2 can be efficiently cooled. Rotational stability can be improved. That is, according to the cooling device of this embodiment, it is possible to achieve both the prevention of the deterioration of the battery 24 and the improvement of the engine high temperature restartability and the idle rotation stability.
  • the electric pump 1 and the electric fan 4 are Operate. Therefore, when it is not determined that the engine body 2 is in a high temperature state, the electric pump 1 and the electric fan 4 do not operate. For this reason, the power consumption of the battery 24 can be reduced during engine dead soaking, and the deterioration of the battery 24 can be suppressed, and the engine main body 2 can be efficiently cooled. Rotational stability can be improved.
  • the third predetermined value is such that the outside air temperature THA is equal to or higher than the predetermined value tha1, the coolant temperature THW is equal to or higher than the predetermined value thw1, and the battery voltage GBA is smaller than the first predetermined value bat1.
  • the value is not less than the value bat3 and less than the second predetermined value bat2 since only the electric fan 4 operates, the power consumption of the battery 24 can be suppressed. For this reason, unnecessary power consumption of the battery 24 can be reduced at the time of engine dead soaking, deterioration of the battery 24 can be suppressed, and the life of the battery 24 can be secured.
  • the cooling water of the radiator 3 can be cooled, and when the engine is restarted at a high temperature, the relatively low temperature cooling water can be circulated to the engine body 2 quickly. Can be cooled.
  • At least one of the outside air temperature THA is less than the predetermined value tha1
  • the coolant temperature THW is less than the predetermined value thw1
  • the battery voltage GBA is less than the third predetermined value bat3.
  • the engine cooling device in this embodiment when the battery voltage GBA is less than the fourth predetermined value bat4 that is smaller than the second predetermined value bat2, the electric pump 1 and the electric fan 4 that are in operation Since the electric pump 1 stops, the power consumption of the battery 24 is suppressed while the cooling water is cooled by the cooling air of the electric fan 4 by the radiator 3. For this reason, unnecessary power consumption of the battery 24 can be reduced at the time of engine dead soaking, deterioration of the battery 24 can be suppressed, and the life of the battery 24 can be secured. Further, the cooling water of the radiator 3 can be continuously cooled, and the relatively low-temperature cooling water can be circulated quickly to the engine body 2 when the engine is restarted at a high temperature, so that the engine body 2 can be quickly cooled. it can.
  • the electric pump 1 and the electric fan 4 that are operating after the engine is stopped are stopped after the time TOF after the IGOFF after the engine is stopped, so there is no concern about the battery running out. . In this sense, it can be avoided that the engine cannot be restarted due to battery exhaustion.
  • the above-described post-IGOFF time TOF is determined according to the difference between the outside air temperature THA and the cooling water temperature THW. For this reason, the electric pump 1 and the electric fan 4 do not continue to operate more than necessary during the dead soak, the unnecessary power consumption of the battery 24 can be reduced, the deterioration of the battery 24 can be suppressed, and the battery 24 A lifetime can be secured.
  • the pump drive request flow rate RFP is determined based on the coolant temperature THW, and the electric pump 1 operates based on the pump drive request flow rate RFP corresponding to the coolant temperature THW. For this reason, the electric pump 1 does not operate at a flow rate higher than necessary at the time of dead soaking, unnecessary power consumption of the battery 24 can be reduced, deterioration of the battery 24 can be suppressed, and the life of the battery 24 is ensured. can do.
  • two electric fans 4 are provided, but one electric fan or three electric fans may be provided.
  • the first predetermined value bat1 and the second predetermined value bat2 related to the battery voltage GBA are set to the same “11 (V)”, but the first predetermined value bat1 and the second predetermined value bat2 are Different values may be used.
  • the present invention can be used for, for example, an automobile engine.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention porte sur un dispositif de refroidissement de moteur qui fait circuler de l'eau de refroidissement à travers un corps principal de moteur (2) et un radiateur (3) en utilisant une pompe électrique (1) et qui envoie de l'air froid au radiateur (3) en utilisant un ventilateur électrique (4), refroidissant par ce moyen le corps principal (2) du moteur. Pendant une période de récupération à l'arrêt (« dead soak period ») après qu'un moteur a été arrêté, une unité de commande (30) commande les états de fonctionnement de la pompe électrique (1) et du ventilateur électrique (4) sur la base de la température (THW) de l'eau de refroidissement, qui est détectée par un capteur de température d'eau (21), de la température de l'air extérieur (THA) détectée par un capteur de température d'air extérieur (22) et d'une tension (GBA) de la batterie. Plus précisément, lorsque le moteur est arrêté, s'il est déterminé sur la base de la température d'eau de refroidissement (THW) et de la température d'air extérieur (THA), que le moteur est ou n'est pas dans un état de haute température, l'unité de commande (30) commande la pompe électrique (1) et le ventilateur électrique (4).
PCT/JP2011/069533 2010-12-15 2011-08-30 Dispositif de refroidissement de moteur WO2012081281A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/823,425 US20130284127A1 (en) 2010-12-15 2011-08-30 Engine cooling device
CN2011800604275A CN103261618A (zh) 2010-12-15 2011-08-30 发动机冷却装置
DE112011104420T DE112011104420T5 (de) 2010-12-15 2011-08-30 Motorkühlvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010279426A JP5725831B2 (ja) 2010-12-15 2010-12-15 エンジンの冷却装置
JP2010-279426 2010-12-15

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WO2012081281A1 true WO2012081281A1 (fr) 2012-06-21

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US (1) US20130284127A1 (fr)
JP (1) JP5725831B2 (fr)
CN (1) CN103261618A (fr)
DE (1) DE112011104420T5 (fr)
WO (1) WO2012081281A1 (fr)

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JP2014233934A (ja) * 2013-06-04 2014-12-15 キヤノン株式会社 電子機器及びその制御方法、並びにプログラム
KR101550616B1 (ko) * 2013-12-18 2015-09-08 현대자동차 주식회사 차량용 냉각 시스템 및 제어 방법
JP6378055B2 (ja) 2014-11-12 2018-08-22 日立オートモティブシステムズ株式会社 内燃機関の冷却制御装置
CN104832264B (zh) * 2014-12-19 2017-07-11 北汽福田汽车股份有限公司 汽车中冷却风扇的控制方法、装置及汽车
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JP6723810B2 (ja) * 2016-04-27 2020-07-15 キャタピラー エス エー アール エル 熱交換装置
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JP6992615B2 (ja) * 2018-03-12 2022-02-04 トヨタ自動車株式会社 車両の温度制御装置
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CN110578595A (zh) * 2019-09-30 2019-12-17 深圳市元征科技股份有限公司 一种发动机风扇控制方法、装置、设备、介质
CN115450745B (zh) * 2022-06-01 2024-04-23 北京罗克维尔斯科技有限公司 车辆及其发动机水温的控制方法、装置、控制设备、介质
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