EP1069290B1 - Système de refroidissement pour véhicule - Google Patents

Système de refroidissement pour véhicule Download PDF

Info

Publication number
EP1069290B1
EP1069290B1 EP00114597A EP00114597A EP1069290B1 EP 1069290 B1 EP1069290 B1 EP 1069290B1 EP 00114597 A EP00114597 A EP 00114597A EP 00114597 A EP00114597 A EP 00114597A EP 1069290 B1 EP1069290 B1 EP 1069290B1
Authority
EP
European Patent Office
Prior art keywords
fan
cooling system
temperature sensor
time interval
operational state
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.)
Expired - Lifetime
Application number
EP00114597A
Other languages
German (de)
English (en)
Other versions
EP1069290A3 (fr
EP1069290A2 (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

Links

Images

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 fan, at least one temperature sensor and a fan control, which is operatively connected at least to the fan and the temperature sensor, and a vehicle.
  • Vehicles and in particular all-terrain vehicles, usually have electric fans to cool a heat exchanger through which engine coolant circulates. Harsh environmental conditions cause an accumulation of dirt on the heat exchanger. Therefore, systems are known by which the direction of rotation of the blower is periodically reversible for a short time to free the heat exchanger or a blower filter from accumulated dirt.
  • Blower controls for refrigeration systems such as shown in DE-C1-3711392, often have multiple thermostats to effect low speed fan operation until the temperature reaches a threshold, and to allow high speed operation when the temperature thereof Exceeds limit. Varying the blower operation increases efficiency, reduces noise generation, and reduces the load on the battery and alternator until the drive reaches normal operating speed.
  • a cooling system is provided with a blower control, which is relatively simple and thus inexpensive to manufacture and still the features a more complex and expensive system.
  • a blower control which is relatively simple and thus inexpensive to manufacture and still the features a more complex and expensive system.
  • the fan is driven or rotated at a low speed in the first operating state, which it preferably occupies during the cranking or for a short time. A particularly large discharge of the battery / power source or the alternator and a good starting behavior but then arises when it is provided that the fan is deactivated in this first operating state.
  • the blower In the second operating condition, which the blower occupies at a time interval following the first time interval, the blower is generally activated so that cooling of the heat exchanger by the cooling system is accomplished by air drawn in by the blower. If the second operating state is dependent on an output of the temperature sensor, then it can be effected that the fan is preferably activated only above a predefinable temperature limit, so that cooling only takes place if this is necessary, and the fan is deactivated in the remaining time or driven at a lower speed.
  • the third operating state the blower preferably takes when the system to be cooled has reached its normal operating condition.
  • the blower can be driven permanently in this operating state. Preferably, however, it is provided that it has a low and a high Speed can rotate.
  • the output value provided by the temperature sensor in this operating state can be used to determine the speed of the fan such that the fan rotates at a low speed, if the temperature sensor delivers an output value which is below a predefinable limit value, and with a high speed rotates when this limit is reached or exceeded.
  • the temperature sensor can measure the temperature and continuously emit a changing signal, for example.
  • the temperature sensor comprises or is designed as a switch which closes or opens as a function of the temperature relative to a limit value.
  • the fan may have a fourth operating state, which it occupies preferably at regular intervals during operation and preferably with a certain time interval from a commissioning or tempering.
  • the time intervals are provided substantially the same length.
  • at least the third time interval in which the blower corresponds to its third operating state which preferably corresponds to the operating state that the blower assumes during a continuous operation, is substantially longer than the first time interval, which preferably corresponds to a start phase Cooling is temporarily not necessary or in which they can be dispensed with in terms of generating noise and additional electrical load.
  • time intervals can be fixed so that they are executed the same each time. However, it is also conceivable to design individual, some or all time intervals variably, for example as a function of an ambient temperature or whether a cold or warm start is carried out.
  • the time intervals or the temperature sensors and the blower can be controlled manually or via timers.
  • the temperature sensor and the fan are in communication with a microprocessor. The latter can determine the time intervals as a function of the time that has elapsed since starting up or activating and activates the fan depending on the values thus determined and the output of the temperature sensor or in conjunction therewith.
  • Such a cooling system can be used on industrial, agricultural or even construction and forestry equipment. Preferably, however, it is used on vehicles and especially on all-terrain vehicles, since they are often exposed to harsh environmental conditions and should be designed to be cheap and robust.
  • Such vehicles can be transport vehicles for people and / or loads or even industrial, agricultural or construction and forestry machinery such as trucks, tractors or harvesters or even vehicles for military purposes.
  • the cooling system 12 includes a heat exchanger 14 and an electrically driven fan 16 for blowing air through the heat exchanger 14 to remove heat from a coolant circulating in the heat exchanger 14.
  • the fan 16 is reversible and, as shown, has at least two speeds including low speed and high speed.
  • the vehicle has a battery or a power source 18, which is equipped with a conventional ignition switch or switch 20, which has an off, an on and a start position.
  • a vehicle drive starter 22 is connected to a start terminal on the switch 20.
  • the positive terminal (B +) of the current source 18 is connected via a line 30 to a pair of inputs to a forward relay 34 and to a reverse relay 36, respectively.
  • the other input of each of the relays 34, 36 is connected to ground.
  • the relays 34 and 36 have first control terminals 44 and 46 connected to respective relay coils and a switchable output 48 of the switch 20.
  • the relay coils have second terminals 54 and 56 connected to a timing control module 60 via front and rear ports 64 and 66, respectively.
  • the switchable output 48 is also connected to a terminal 72 of a thermostat, temperature switch or temperature sensor 70 via a coil of a speed relay 74.
  • the temperature sensor 70 is open when the coolant is below a preselected temperature, preferably about 180 degrees, and closes when the temperature of the coolant is above that temperature increases.
  • the other terminal of the temperature sensor 70 is connected to ground, so that the speed relay 74 is activated when the temperature rises above the preselected level or limit.
  • the terminal 72 is also connected to the timing device 60 via the terminal 76 so that a high voltage is applied to the terminal 76 when the temperature sensor 70 is open, and a low voltage is applied when the temperature sensor 70 is closed.
  • the forward relay 34 has an output 84 which is directly connected to a low speed input line 86 of the blower 16.
  • a line 88 leaving the blower 16 is connected to a terminal 96 of the reverse relay 36.
  • the blower 16 also includes a high speed input line 100 which communicates with a switchable terminal 104 of the speed relay 74.
  • Diodes D1 and 2 connected between ground and terminals 84 and 96 protect against large, reverse voltage spikes caused by switching of the inductive fan drive load.
  • the timing unit 60 includes a microcontroller 110 having a terminal 1 connected to a power source Vcc, preferably a five volt source, and a terminal 8 connected to ground.
  • a capacitor C1 is connected between the terminal 8 and ground.
  • Terminals 64 and 66 are connected to terminals 5 and 2 of microcontroller 110 via resistors R1 and R2.
  • Grounded NPN transistors T1 and T2 have collectors connected to terminals 64 and 66 and bases connected to terminals 7 and 3 of microcontroller 110 via resistors R3 and R4 and to ground via resistors R5 and R6.
  • Voltage-peak-limiting diodes D3 and D4 are connected to the output of the current source 18 from the collectors of the transistors T1 and T2.
  • the micro-controller 110 briefly activates the transistors T1 and T2 and tests the terminals 5 and 2 to turn on the To check collector-emitter voltage Vce of the transistors T1 and T2 via the resistors R1 and R2. If a transistor output terminal is erroneously connected directly to the current source 18, or if there is a short to terminal B +, a high voltage Vce of a saturated state will be detected during the short, activated transistor test period and the microprocessor 110 will prevent any damage causing prolonged active of the transistor.
  • a resistor R7 connects the terminal 72 of the temperature sensor 70 to the input 6 of the microcontroller 110.
  • a resistor R8 and a capacitor C2 are connected in parallel between the input 6 and ground.
  • the temperature sensor 70 closes to ground the input 76 and provide a temperature signal to the microcontroller 110.
  • Closing the temperature sensor 70 when the port 48 is energized activates the speed relay 74 to energize the high speed drive of the blower 16 and to allow high speed operation of the blower 16 after a drive start delay period.
  • the fan 16 normally rotates in a forward direction to direct air through the heat exchanger 14 in a first direction.
  • the forward relay 34 is active (T1 is activated) to directly connect the positive terminal of the current source 18 to the low speed input line 86 and to the speed relay 74.
  • the forward relay 36 remains inactive (as shown in Fig. 1 with T2 in the off state) to connect the line 88 of the blower 16 to ground.
  • T2 is activated and T1 is deactivated, so that the forward relay 34 is deactivated and the reverse relay 36 is activated, whereby the line 88 is acted upon by the positive terminal of the current source 18.
  • the microcontroller 110 evaluates the vehicle start, the accumulated drive duty and the coolant temperature to automatically turn on and off the blower 16 and to automatically control the blower speed and direction.
  • the timing control device 60 prevents fan operation during one first delay (122 in FIG. 3) after start (120), regardless of the position of temperature sensor 70.
  • microcontroller 110 holds transistors T1 and T2 in a deactivated state (terminals 7 and 3 are low Voltage for a period of time t1, preferably about 20 seconds, so that the lines 84, 86 and 88 are grounded through the relays 34 and 36, and the fan 16 is still not driven.
  • the microcontroller 110 establishes a second time interval t2 (see 124 in FIG. 3), which is preferably about four minutes, in which the blower 16 remains in its deactivated state.
  • the microcontroller 110 determines the position of the temperature sensor 70 by monitoring the input 6.
  • the microcontroller 110 applies high to the terminal 7 Voltage to turn on the transistor T1 and to activate the forward relay 34, so that the fan starts to work.
  • the microcontroller 110 raises the port 7 to turn on the forward relay 34 and activate the blower 16 for a time interval t3 (126 in Figure 3), which is preferably about five minutes.
  • the fan speed is determined by the position of the Temperature sensor 70 determined.
  • the relay 74 will activate to energize the high speed input line 100.
  • the relay 74 will deactivate so that only the low speed input line 86 is energized and the fan 16 rotates at a low speed until the temperature sensor 70 closes with increasing coolant temperature.
  • the initial deactivated time intervals and low speed operation when the coolant is below the preselected temperature reduce noise and power requirements and provide the impression and benefits of a system having at least two thermal switches with a single temperature sensor 70.
  • the microprocessor 110 initiates a short routine to reverse the blower 16 to reverse the direction of air flow through the heat exchanger 14 to help remove debris that might have accumulated.
  • the power supply of the fan 16 is interrupted for a short time interval (see t4 of 128), preferably about two seconds, so that the fan 16 stops by applying a low voltage to the terminals 7 and 3 of the microcontroller 110 to stop the fan Turn off transistors T1 and T2 to disable the relays 34 and 36.
  • the fan 16 is operated in the reverse direction for a time interval t5 (see 130 in Fig.
  • Blower 16 reverses to remove debris from heat exchanger 14 (or a blower filter or similar debris collection device).
  • the microcontroller 110 After a time interval t5, which is preferably about five seconds, the microcontroller 110 again applies a low voltage to the terminals 7 and 3, so that the relays 34 and 36 are deactivated and the fan 16 for a time interval t6 (132 in FIG ) is not driven and stops. After the time interval t6, the fan 16 is again operated in the forward direction for a time interval t3 (at 126). The forward-reverse cycle 126-132 continues until the vehicle is stopped or the power supply is interrupted for any reason.
  • t5 which is preferably about five seconds

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)

Claims (10)

  1. Système de refroidissement (12) comportant un échangeur thermique (14), un ventilateur (16), au moins un capteur de température (70) et une commande de ventilateur (10), qui peut être reliée de manière active au moins au ventilateur (16) et au capteur de température (70), caractérisé en ce que la commande de ventilateur (10) comporte une unité de commande synchronisée qui met à disposition au moins deux intervalles de temps (t1, t2, t3, t4, t5, t6), et en ce que, en début de service, la commande de ventilateur (10) amène le ventilateur (16) pendant un premier intervalle de temps (t1) dans un premier état de service, après l'écoulement du premier intervalle de temps (t1) dans un deuxième état de service pendant un deuxième intervalle de temps (t2) et après l'écoulement du deuxième intervalle de temps (t2) dans un troisième état de service.
  2. Système de refroidissement selon la revendication 1, caractérisé en ce que le ventilateur (16) est désactivé dans le premier état de service.
  3. Système de refroidissement selon une ou plusieurs des revendications précédentes, caractérisé en ce que le deuxième état de service dépend d'une information émise par le capteur de température (70) et en ce que le ventilateur est seulement activé, de préférence au moins pour l'essentiel, lorsque le capteur de température (70) détecte une température qui est supérieure à une valeur prédéfinie.
  4. Système de refroidissement selon une ou plusieurs des revendications précédentes, caractérisé en ce que le ventilateur (16) dans le troisième état de service peut tourner avec au moins une vitesse élevée et une vitesse faible, la valeur de la vitesse étant déterminée de préférence par une information émise par le capteur de température (70).
  5. Système de refroidissement selon une ou plusieurs des revendications précédentes, caractérisé en ce que le capteur de température (70) comporte un commutateur dépendant de la température ou est réalisé en tant que tel.
  6. Système de refroidissement selon une ou plusieurs des revendications précédentes, caractérisé en ce que le sens de rotation du ventilateur (16) peut être inversé et/ou en ce que le ventilateur (16) peut être amené par la commande de ventilateur (10) dans un quatrième état de service, dans lequel ledit ventilateur agit dans une direction opposée à la direction dans les autres états de service.
  7. Système de refroidissement selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'au moins un troisième intervalle de temps (t3), dans lequel le ventilateur (16) est amené dans son troisième état de service, est de préférence nettement plus long que le premier intervalle de temps (t1) et/ou en ce qu'un intervalle de temps (t5), pendant lequel le ventilateur (16) est dans son quatrième état de service, est de préférence nettement plus court que le troisième intervalle de temps (t3).
  8. Système de refroidissement selon une ou plusieurs des revendications précédentes, caractérisé en ce que les longueurs des intervalles de temps (t1, t2, t3, t4, t5, t6) sont fixes et/ou sont variables.
  9. Système de refroidissement selon une ou plusieurs des revendications précédentes, caractérisé par un microprocesseur (110) qui peut être relié de manière active au capteur de température (70) et au ventilateur (16).
  10. Véhicule, de préférence véhicule tout terrain, comportant un système de refroidissement selon une ou plusieurs des revendications précédentes.
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 EP1069290A2 (fr) 2001-01-17
EP1069290A3 EP1069290A3 (fr) 2003-01-02
EP1069290B1 true 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)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB201300450D0 (en) 2013-01-10 2013-02-27 Agco Int Gmbh Control of cooling fan on current
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
CN110107391B (zh) * 2019-05-23 2020-10-16 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
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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53138132A (en) * 1977-05-09 1978-12-02 Toyota Motor Corp Automotive cooling fan drive control unit
WO1983002132A1 (fr) * 1981-12-17 1983-06-23 Bianchetta, Donald, L. Commande pour un ventilateur entraine par un fluide
US4425766A (en) * 1982-05-17 1984-01-17 General Motors Corporation Motor vehicle cooling fan power management system
JPH0759886B2 (ja) * 1985-10-21 1995-06-28 本田技研工業株式会社 エンジン冷却システム
DE3711392C1 (de) 1987-04-04 1989-01-12 Behr Thomson Dehnstoffregler Kuehleinrichtung fuer eine Brennkraftmaschine und Verfahren zur Steuerung einer solchen Kuehleinrichtung
CA1332972C (fr) * 1987-12-28 1994-11-08 Yasuyuki Aihara Systeme de commande du refroidissement de moteurs a combustion interne dotes d'un surcompresseur
JPH0941971A (ja) * 1995-08-01 1997-02-10 Honda Motor Co Ltd ラジエータファン駆動モータの制御装置
KR0121950B1 (ko) * 1995-08-11 1997-11-13 김광호 자동차 냉각팬 제어 시스템
JPH1068142A (ja) * 1996-08-28 1998-03-10 Shin Caterpillar Mitsubishi Ltd 建設機械の冷却装置

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
CA2298197C (fr) 2002-07-16
DE50013450D1 (de) 2006-10-26
AU4266700A (en) 2001-01-18
EP1069290A2 (fr) 2001-01-17

Similar Documents

Publication Publication Date Title
EP1069290B1 (fr) Système de refroidissement pour véhicule
DE69123263T2 (de) Batterieschutzsystem
DE3711392C1 (de) Kuehleinrichtung fuer eine Brennkraftmaschine und Verfahren zur Steuerung einer solchen Kuehleinrichtung
DE60226105T2 (de) Ölzustandstendenz-Algorithmus
DE3229003C2 (de) Kühleinrichtung für den Motorraum eines Fahrzeugs
DE10146556A1 (de) Verfahren und Vorrichtung zum Erfassen des Zustandes eines Fahrzeuges
DE102014224507B4 (de) Diagnoseverfahren für Relaisgesteuerten elektrischen Lüfter mit mehreren Drehzahlen
DE2843796A1 (de) Steuerschaltung fuer den betrieb einer gluehkerze bei einem dieselmotor
DE3534500C2 (fr)
DE3612140A1 (de) Verfahren zum belueften eines raums
EP2609322B1 (fr) Procédé et dispositif pour faire fonctionner un démarreur d'un véhicule
DE4141946C2 (de) Verfahren und Vorrichtung zur Steuerung des Betriebs einer Sekundärluftpumpe
EP2107673B1 (fr) MOSFET en tant que commutateur d'extinction électronique
DE112006001939T5 (de) Automatischer Start einer Zusatzleistungseinheit
DE3429052A1 (de) Elektrisches kuehlergeblaese
DE4041620C2 (de) Einrichtung zur Spannungsversorgung bei Geräten mit Nachlauf
DE3741394C2 (de) Schaltungsanordnung zum Schutz vor Verpolungsschäden für Lastkreise mit einem MOS-FET als Schalttransistor
DE10140094B4 (de) Kühlgebläse, insbesondere für Kraftfahrzeuge
DE102014208338B4 (de) System und Verfahren zum Steuern eines Motorgebläses
DE102004007181A1 (de) Lasttreiberschaltkreis
DE10320746A1 (de) Erweiterter Lüfternachlauf
DE69218955T2 (de) Steuerschaltung für einen Gleichstrommotor
DE19915973C1 (de) Verfahren zur Regelung der Bordnetzspannung eines Kraftfahrzeugs
DE2718658A1 (de) Einrichtung zur erkennung von lagerschaeden elektrischer maschinen
DE10131170C1 (de) Vorrichtung zur Steuerung des Betriebes einer Fahrzeugbatterie

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RIC1 Information provided on ipc code assigned before grant

Free format text: 7F 01P 7/04 A, 7F 01P 5/04 B

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20030702

AKX Designation fees paid

Designated state(s): DE FR GB IT NL

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060913

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060913

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50013450

Country of ref document: DE

Date of ref document: 20061026

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20061109

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070614

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080729

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20150729

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50013450

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190729

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20200706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20200706