EP1069290A2 - Système de refroidissement pour véhicule - Google Patents

Système de refroidissement pour véhicule Download PDF

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Publication number
EP1069290A2
EP1069290A2 EP00114597A EP00114597A EP1069290A2 EP 1069290 A2 EP1069290 A2 EP 1069290A2 EP 00114597 A EP00114597 A EP 00114597A EP 00114597 A EP00114597 A EP 00114597A EP 1069290 A2 EP1069290 A2 EP 1069290A2
Authority
EP
European Patent Office
Prior art keywords
blower
fan
cooling system
temperature sensor
time interval
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.)
Granted
Application number
EP00114597A
Other languages
German (de)
English (en)
Other versions
EP1069290A3 (fr
EP1069290B1 (fr
Inventor
Jim Milton Shoemaker
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.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Publication of EP1069290A2 publication Critical patent/EP1069290A2/fr
Publication of EP1069290A3 publication Critical patent/EP1069290A3/fr
Application granted granted Critical
Publication of EP1069290B1 publication Critical patent/EP1069290B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • F01P5/043—Pump reversing arrangements
    • 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
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives
    • 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
    • F01P11/06—Cleaning; Combating corrosion
    • F01P2011/063—Cleaning
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature

Definitions

  • the invention relates to a cooling system with a heat exchanger, a blower, at least one temperature sensor and one Fan control, at least with the fan and the Temperature sensor is effectively connectable, and a vehicle.
  • Show vehicles and especially all-terrain vehicles usually electric blowers to a heat exchanger to cool, circulated through the engine coolant. Rough Environmental conditions cause dirt to accumulate the heat exchanger. Systems are therefore known through which the Direction of rotation of the blower is periodically, briefly reversible, around the heat exchanger or a fan filter of accumulated To get rid of dirt.
  • Fan controls for cooling systems such as those in of DE-C1-3711392 are often shown to have several Thermostats to run a blower with a low Effect speed until the temperature reaches a limit achieved, and to enable high-speed operation if the temperature exceeds this limit.
  • a variation of the blower operation increases the effectiveness, reduces the Noise generation and the load on the battery and Alternator until the drive is normal Has reached operating speed.
  • a cooling system with a fan control provided that relatively simple and therefore is inexpensive to manufacture and still features of a more complex and expensive system.
  • a cooling system with a fan control provided that relatively simple and therefore is inexpensive to manufacture and still features of a more complex and expensive system.
  • a power source or a vehicle battery or one Alternator especially during or shortly after Starting a drive or a heat source in general be reduced.
  • temperature switch or sensors can be dispensed with.
  • the fan in the first Operating state which it is preferably during starting or for a short time beyond this, with a low one Speed is driven or rotated.
  • a special one great relief of the battery / power source or the Alternator and good starting behavior results if it is provided that the fan in this first Operating state is deactivated.
  • the blower in one Takes time interval that follows the first time interval, the fan is generally activated so that cooling of the heat exchanger through the cooling system by means of Air drawn in or discharged is blown.
  • the blower preferably only above a specifiable Temperature limit is activated, so that cooling only takes place when this is necessary and the blower in the remaining time is deactivated or with a lower time Speed is driven.
  • the fan then preferably takes the third operating state when the system to be cooled is normal Has reached operating state.
  • the blower can in this Operating status are driven permanently. Preferably but provided that it be with a low and a high Speed can rotate.
  • the one from the temperature sensor The output value provided can do this in this operating state serve to determine the speed of the fan in such a way that the fan rotates at a low speed, if the temperature sensor provides an output value that is below a or the predefinable limit value, and with rotates at high speed when this limit is reached or exceeded.
  • the temperature sensor can measure the temperature and for example, a continuously changing signal submit.
  • the temperature sensor preferably comprises one Switch or is designed as one that in Dependence on the temperature related to a limit value closes or opens.
  • a reversal can be used to this will result in contamination on the heat exchanger or on a blower filter or other cover have accumulated by a counter to the operating direction to remove directed air flow.
  • the blower can do this have a fourth operating state, which it is preferably in regular intervals during operation and preferably with a certain time interval from commissioning or takes a start.
  • the time intervals in the are provided essentially the same. But is preferred at least the third time interval in which the blower stops third operating state, which is preferably the operating state corresponds to that of the blower during continuous operation occupies much longer than the first time interval that preferably corresponds to an initial or starting phase in which cooling is not absolutely necessary for a short time or in of them, in terms of generating noise and additional electrical load can be dispensed with.
  • the time intervals can be fixed, so that each Operation can be carried out immediately. But it is also conceivable individual, some or all time intervals variable for example depending on an ambient temperature or whether a cold or warm start is carried out shape.
  • the time intervals or the temperature sensors and the fan can be controlled manually or via timers.
  • the temperature sensor and the blower are preferably stationary connected to a microprocessor. This can Time intervals depending on the time since starting or Put the past time into operation and determine the blower depending on the values determined in this way and the output of the Activate temperature sensor or in connection with it.
  • Such a cooling system can be used in industrial, agricultural or also construction and forestry Devices are used. But it is preferably on Vehicles and especially on all-terrain vehicles used because they are often exposed to harsh environmental influences are and should be cheap and robust. At Such vehicles can be transport vehicles for Persons and / or loads or also industrial, agricultural or construction and forestry Working machines such as trucks, tractors or harvesting machines or also vehicles for military purposes.
  • a Blower control circuit or a blower control 10 for a Cooling system of a vehicle generally designated 12 is shown.
  • the cooling system 12 has a heat exchanger 14 and an electrically powered blower 16 to blow air to blow through the heat exchanger 14 to remove heat from one To remove coolant that circulates in the heat exchanger 14.
  • the blower 16 is reversible and, as shown, at least two speeds that are low Include speed and high speed.
  • the Vehicle has a battery or power source 18 that with a conventional ignition lock or switch 20, which switches off, has a start and a start position, is equipped. On Starter 22 for a vehicle drive is with a Start port connected to the switch 20.
  • the positive connection (B +) of the current source 18 is via a Line 30 with a pair of inputs with one Forward relay 34 or connected to a reverse relay 36.
  • the other input of each of the relays 34, 36 is ground connected.
  • the relays 34 and 36 have first control terminals 44 and 46, which with respective relay coils and a switchable output 48 of the switch 20 are connected.
  • the Relay coils have second connections 54 and 56, which with a setting control module or one Front and rear timing device 60 Connections 64 and 66 are connected.
  • Switchable output 48 is also with a connection 72 of a thermostat, Temperature switch or temperature sensor 70 via a coil a speed relay 74 connected.
  • the temperature sensor 70 is open when the coolant is below a preselected one Temperature, preferably about 180 degrees, and closes, if the temperature of the coolant is above this temperature increases.
  • the other connection of the temperature sensor 70 is with Ground connected so that the speed relay 74 is activated is when the temperature is above the preselected level or preselected limit increases.
  • the connection 72 is also with timing device 60 via port 76 connected so that a high voltage at the terminal 76 is present when the temperature sensor 70 is open, and a low voltage is present when the temperature sensor 70 closed is.
  • the forward relay 34 has an output 84 which is direct with a low speed input line 86 of the Blower 16 is connected. An outgoing from the fan 16 Line 88 is connected to a terminal 96 of the reverse relay 36 connected.
  • the blower 16 also has one High-speed input line 100 on the one switchable connection 104 of the speed relay 74 in Connection is established. Diodes D1 and 2, which are between ground and the Connections 84 and 96 are connected, protect against large, reverse voltage peaks caused by switching the inductive fan drive load.
  • the timing control unit 60 has a microcontroller or - processor 110 with a connector 1 connected to a power source Vcc, preferably a five V source, and a connector 8, connected to ground.
  • a capacitor is C1 connected between terminal 8 and ground.
  • the connections 64 and 66 are with connections 5 and 2 of the microcontroller 110 connected via resistors R1 and R2.
  • Grounded NPN transistors T1 and T2 have collectors that are connected to connections 64 and 66 are connected, and bases connected to the connections 7 and 3 of the microcontroller 110 via resistors R3 and R4 and with Ground are connected via resistors R5 and R6.
  • Voltage-limiting diodes D3 and D4 are outgoing Collectors of transistors T1 and T2 with current source 18 connected.
  • the microcontroller 110 activates the transistors T1 and T2 briefly and checks connections 5 and 2 to the Collector-emitter voltage Vce of the transistors T1 and T2 via to check the resistors R1 and R2.
  • a Transistor output connection mistakenly directly with the Power source 18 is connected or if a short circuit with the Connection B + is present, a high voltage Vce becomes one saturated state during the short, activated Transistor test period are determined and the microprocessor 110 prevents any lengthening that causes damage Being active of the transistor.
  • a resistor R7 connect the terminal 72 of the Temperature sensor 70 with the input 6 of the microcontroller 110.
  • a resistor R8 and a capacitor C2 are in parallel connected between input 6 and ground. If the Coolant temperature the selected temperature (about 180 Degree), the temperature sensor 70 closes the Ground input 76 and send a temperature signal to the Microcontroller 110 to deliver. Closing the Temperature sensor 70 activated when port 48 is acted upon the speed relay 74 to the To apply high-speed drive of the fan 16 and high speed operation of the fan 16 after a delay period at a drive start enable. The fan 16 normally rotates in one Forward direction to air through the heat exchanger 14 in one to steer the first direction.
  • Forward relay 34 For a fan operation in Forward relay 34 is active (T1 is activated) to the positive connection of the current source 18 directly with the low speed input line 86 and with the To connect speed relay 74.
  • the forward relay 36 remains inactive (as in FIG. 1 with T2 in the switched off State is shown) to the line 88 of the fan 16 to connect to ground.
  • T2 is activated and T1 deactivated, so that the forward relay 34 is deactivated and the reverse relay 36 is activated, whereby line 88 from the positive terminal of the Current source 18 is applied.
  • the microcontroller 110 evaluates the vehicle start accumulated drive operating time and the Coolant temperature to automatically turn the blower 16 on and off turn off and the fan speed and direction to control automatically. To the full power of the power source 18 for the starting process of the drive to deliver the Drive load during the first few moments of Drive operation to reduce until the operation has stabilized, and to reduce noise, prevents the Timing device 60 a fan operation during a first delay (122 in FIG. 3) after the start (120), regardless of the position of the temperature sensor 70.
  • microcontroller 110 holds transistors T1 and T2 in a deactivated state (connections 7 and 3 have a low voltage) for a period of time or a time interval t1, preferably approximately 20 seconds, see above that lines 84, 86 and 88 via relays 34 and 36 are grounded, and the fan 16 is still not driven becomes.
  • a time interval t1 preferably approximately 20 seconds, see above that lines 84, 86 and 88 via relays 34 and 36 are grounded, and the fan 16 is still not driven becomes.
  • the microcontroller 110 establishes a second one Time interval t2 (see 124 in FIG. 3), which is preferred is about four minutes in which the fan 16 in its deactivated state remains.
  • the microcontroller 110 determines the position of the Temperature sensor 70 by monitoring input 6.
  • the Microcontroller 110 to the terminal 7 to a high voltage turn on transistor T1 and turn forward relay 34 on activate so that the fan starts to work. If the If the temperature sensor 70 remains open, the microcontroller 110 sets terminal 7 high to turn on forward relay 34 and the blower 16 for a time interval t3 (126 in FIG. 3) activate, which is preferably about five minutes. The fan speed is determined by the position of the Temperature sensor 70 determined. If the temperature sensor 70 is closed, relay 74 will activate the To apply high-speed input line 100.
  • the microprocessor initiates 110 a short routine to reverse the fan 16 to the Reverse direction of air flow through the heat exchanger 14 to help remove contaminants that may have accumulated.
  • the power supply to the Blower 16 for a short time interval (see t4 of 128), preferably about two seconds, so that the Blower 16 stops by connections 7 and 3 of the Microcontroller 110 applied with a low voltage to turn transistors T1 and T2 off Deactivate relays 34 and 36.
  • the fan 16 in the opposite direction operated for a time interval t5 (see 130 in FIG.
  • the microcontroller 110 occupies the connections 7 and 3 again with a low voltage, so that the Relays 34 and 36 are deactivated and the blower 16 for one Time interval t6 (132 in Fig. 3) is not driven and stops. After the time interval t6, the fan 16 turns on Time interval t3 (at 126) again in the forward direction operated. The forward-reverse cycle 126-132 will continued until the vehicle is parked or the power supply is interrupted for some reason.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Control Of Temperature (AREA)
  • Motor Or Generator Cooling System (AREA)
EP00114597A 1999-07-15 2000-07-07 Système de refroidissement pour véhicule Expired - Lifetime EP1069290B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US354045 1999-07-15
US09/354,045 US6126079A (en) 1999-07-15 1999-07-15 Fan control

Publications (3)

Publication Number Publication Date
EP1069290A2 true EP1069290A2 (fr) 2001-01-17
EP1069290A3 EP1069290A3 (fr) 2003-01-02
EP1069290B1 EP1069290B1 (fr) 2006-09-13

Family

ID=23391667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114597A Expired - Lifetime EP1069290B1 (fr) 1999-07-15 2000-07-07 Système de refroidissement pour véhicule

Country Status (5)

Country Link
US (1) US6126079A (fr)
EP (1) EP1069290B1 (fr)
AU (1) AU765321B2 (fr)
CA (1) CA2298197C (fr)
DE (1) DE50013450D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014108479A1 (fr) * 2013-01-10 2014-07-17 Agco International Gmbh Commande de ventilateur de refroidissement en fonction de courant
CN110107391A (zh) * 2019-05-23 2019-08-09 浙江吉利控股集团有限公司 一种发动机风扇后运行控制方法、系统及电子设备

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US6298816B1 (en) 1999-10-07 2001-10-09 Siemens Canada Limited Vacuum seal for air intake system resonator
JP4285866B2 (ja) * 1999-12-22 2009-06-24 株式会社小松製作所 油圧駆動冷却ファン
FR2808739B1 (fr) * 2000-05-15 2004-04-02 Peugeot Citroen Automobiles Sa Dispositif de regulation thermique a pompe a chaleur, pour vehicule automobile
US6450275B1 (en) * 2000-11-02 2002-09-17 Ford Motor Company Power electronics cooling for a hybrid electric vehicle
US7008184B2 (en) * 2002-08-14 2006-03-07 Bettencourt Jr Harold Ray Control for cooling fan
US6880497B1 (en) * 2003-09-25 2005-04-19 Detroit Diesel Corporation System and method for controlling fan activation based on intake manifold air temperature and time in an EGR system
CA2483109C (fr) 2003-10-20 2012-05-01 Flexxaire Manufacturing Inc. Systeme de commande de ventilateur a pas variable
US7131490B1 (en) * 2005-04-15 2006-11-07 T.K.M. Contracting And Metal Industry Ltd. Fan coil controller
TWI308678B (en) * 2005-11-03 2009-04-11 Wistron Corp Dust-cleaning device for computes and method using the same with a computer fan
US20080036567A1 (en) * 2006-08-08 2008-02-14 Steven Glassburn Method of controlling an operating temperature of existing vehicle engine cooling fan on and off cycles
US7794105B2 (en) * 2007-01-09 2010-09-14 Percival Scientific, Inc. Temperature controlled light fixture for environmental chamber
KR101038058B1 (ko) 2008-10-28 2011-06-01 볼보 컨스트럭션 이큅먼트 에이비 건설장비의 냉각팬 회전수 가변 제어방법
AU2010229238B2 (en) * 2009-03-26 2014-06-26 Crown Equipment Corporation Working vehicle having cooling system
US8175757B2 (en) * 2009-09-10 2012-05-08 Avaya Inc. Self-cleaning chassis
US8239074B2 (en) * 2010-05-27 2012-08-07 Standard Microsystems Corporation Generating a nonlinear function for fan control
US10183547B2 (en) * 2012-05-24 2019-01-22 Honda Motor Co., Ltd Idle stop and heater control system and method for a vehicle
US8960349B2 (en) 2013-04-16 2015-02-24 Deere & Company Hydraulic fluid warm-up using hydraulic fan reversal
US9551275B2 (en) 2014-08-07 2017-01-24 Caterpillar Inc. Cooling system having pulsed fan control
US10619932B2 (en) 2015-10-23 2020-04-14 Hyfra Industriekuhlanlagen Gmbh System for cooling a fluid with a microchannel evaporator
US11193715B2 (en) 2015-10-23 2021-12-07 Hyfra Industriekuhlanlagen Gmbh Method and system for cooling a fluid with a microchannel evaporator
US10479191B2 (en) * 2017-12-19 2019-11-19 Cnh Industrial America Llc Cooling systems and methods for an agricultural harvester
WO2020000080A1 (fr) * 2018-06-29 2020-01-02 Unsworth John D Système pour prévenir et traiter les coudes et les blocages de flux sanguins
US11226139B2 (en) * 2019-04-09 2022-01-18 Hyfra Industriekuhlanlagen Gmbh Reversible flow evaporator system
US12146459B2 (en) * 2020-02-05 2024-11-19 Cnh Industrial America Llc System and method for cleaning a grille of a work vehicle
US11585261B2 (en) * 2021-05-28 2023-02-21 Textron Innovations Inc. Vehicle air intake screen maintenance systems and methods
DE102021124391A1 (de) * 2021-09-21 2023-03-23 Man Truck & Bus Se Verfahren zum Reinigen einer Kühlvorrichtung durch Rütteln
CN115214351A (zh) * 2022-08-02 2022-10-21 浙江吉利控股集团有限公司 一种用于车辆冷却模块清洁的控制方法、控制系统及车辆

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014108479A1 (fr) * 2013-01-10 2014-07-17 Agco International Gmbh Commande de ventilateur de refroidissement en fonction de courant
US9677781B2 (en) 2013-01-10 2017-06-13 Agco International Gmbh Control of cooling fan on current
CN110107391A (zh) * 2019-05-23 2019-08-09 浙江吉利控股集团有限公司 一种发动机风扇后运行控制方法、系统及电子设备

Also Published As

Publication number Publication date
EP1069290A3 (fr) 2003-01-02
CA2298197A1 (fr) 2001-01-15
US6126079A (en) 2000-10-03
AU765321B2 (en) 2003-09-18
EP1069290B1 (fr) 2006-09-13
CA2298197C (fr) 2002-07-16
DE50013450D1 (de) 2006-10-26
AU4266700A (en) 2001-01-18

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