WO2002101210A1 - Verfahren zum überwachen eines kühlflüssigkeitskreislaufs einer brennkraftmaschine - Google Patents
Verfahren zum überwachen eines kühlflüssigkeitskreislaufs einer brennkraftmaschine Download PDFInfo
- Publication number
- WO2002101210A1 WO2002101210A1 PCT/DE2002/001417 DE0201417W WO02101210A1 WO 2002101210 A1 WO2002101210 A1 WO 2002101210A1 DE 0201417 W DE0201417 W DE 0201417W WO 02101210 A1 WO02101210 A1 WO 02101210A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- differential pressure
- internal combustion
- coolant
- combustion engine
- temperature
- Prior art date
Links
- 239000002826 coolant Substances 0.000 title claims abstract description 75
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012544 monitoring process Methods 0.000 title claims abstract description 8
- 238000010586 diagram Methods 0.000 claims abstract description 4
- 239000000110 cooling liquid Substances 0.000 claims description 15
- 238000009795 derivation Methods 0.000 claims 1
- 238000011156 evaluation Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
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
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
- F01P7/12—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers by thermostatic control
-
- 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
- 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
-
- 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
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
-
- 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
- F01P2023/00—Signal processing; Details thereof
- F01P2023/08—Microprocessor; Microcomputer
-
- 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
- F01P2025/04—Pressure
-
- 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
- F01P2025/04—Pressure
- F01P2025/06—Pressure for determining 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
- F01P2025/00—Measuring
- F01P2025/08—Temperature
- F01P2025/31—Cylinder 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
- F01P2025/00—Measuring
- F01P2025/08—Temperature
- F01P2025/32—Engine outcoming fluid 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
- F01P2025/00—Measuring
- F01P2025/08—Temperature
- F01P2025/33—Cylinder head 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/164—Controlling of coolant flow the coolant being liquid by thermostatic control by varying pump speed
Definitions
- the invention is based on a method for monitoring a cooling liquid circuit of an internal combustion engine according to the preamble of claim 1.
- Heat emitted from the wall of a combustion chamber is essentially dissipated by a cooling liquid.
- the coolant is circulated by a pump, which is usually mechanically driven by the internal combustion engine. Solutions are also known in which a controllable electric motor serves as a pump drive.
- the cooling liquid is conveyed through a cooler through a control valve or passed through a bypass line which is provided in parallel with the cooler.
- a heating heat exchanger for the passenger compartment is connected to the coolant circuit.
- a setpoint temperature of the coolant which is optionally controlled by means of a characteristic diagram, is set such that the permissible temperatures of the components to be cooled and the coolant during operation are never exceeded.
- DE 41 09 498 A1 discloses a device and a method for very sensitive regulation of the temperature of an internal combustion engine.
- a control device e.g. the temperature of the internal combustion engine, the speed and load of the internal combustion engine, the vehicle speed, the operating state of an air conditioning system or the heating of the vehicle and the temperature of the cooling water.
- a setpoint generator of the control device determines a temperature setpoint for the internal combustion engine, taking into account the input signals. According to a comparison of the actual values with the target values, the control device acts on a three-way valve, which is arranged in the mouth area of a bypass line in a line between the internal combustion engine and a cooler.
- the inlet flow is divided between the cooler inlet and the bypass line. Cooling of the internal combustion engine is thus recorded not only as a function of operating parameters that are directly important for the temperature development, but also as a function of parameters of additional units that only indirectly influence the temperature. Furthermore, the options for setting the optimum temperature are expanded considerably because faults can also be recorded and taken into account. By assigning different operating conditions to different ranges of temperature setpoints, the desired temperature can be set quickly, which is due to different
- Priorities of the operating conditions can be refined further. It is of crucial importance for the emission behavior of an internal combustion engine that it reaches its optimal operating temperature as quickly as possible and maintains it during the operating period. This essentially depends on the temperatures of the heat-carrying components, in particular on the walls of the cylinders or the cylinder block and the cylinder head, which form the combustion chamber. The temperatures in turn depend on operating parameters such as the speed and the load of the internal combustion engine, the volume flow and the temperature of the coolant and the load change, etc. The relationship between these parameters and the temperature of the components is extremely complex and cannot be calculated analytically. To ensure that the internal combustion engine emits good emissions over its entire service life, it is necessary to monitor the proper functioning of the cooling liquid circuit.
- control unit specifies an allowable upper and lower deviation of a reference parameter from a desired value from operating parameters of the internal combustion engine with the aid of deviation maps. It compares this with a difference between a setpoint and one
- the 'invention is based on the realization that, the emissions from an internal combustion engine affect enced by the combustion and these in turn by the critical temperatures of components, in particular the combustion chamber wall which at Reciprocating internal combustion engines is mainly formed by the inner wall of the cylinder and the cylinder head. If the relationship between the component temperature and the emission as a function of an operating point of the internal combustion engine is known and is present in a map, the diagnosis and monitoring are carried out by monitoring the component temperatures. The temperature of the component itself or a parameter related to this temperature can be used as a reference parameter. For a given internal combustion engine, the temperatures of the selected reference component are determined at a specific operating point by the temperature and the volume flow of the cooling liquid. According to the invention, therefore, the temperature and the volume flow of the cooling liquid are used to monitor the cooling liquid circuit.
- the temperature of the reference component itself for example the wall of a cylinder or cylinder block or cylinder head, serves as the reference parameter
- a temperature map and a coolant temperature preferably measured at the output of the internal combustion engine and an actual value of the Volume flow
- an actual value of the temperature of the reference component is determined.
- the actual value of the volume flow results from a differential pressure that is set at a throttle point in the main flow of the coolant and the control signal from the coolant pump.
- the difference is formed between the actual value and a target value of the temperature of the reference component, which is determined from the speed and the load of the internal combustion engine with the aid of a further temperature map, and this is compared with an allowable lower and upper deviation of the temperature of the reference component.
- an output signal is generated from which it can be concluded that there is a fault in the coolant pump or in the cooling circuit, for example by clamping the liquid pump or a control valve or by squeezing a hose.
- the coolant temperature In the warm state, the coolant temperature is either kept constant or varied within a permissible range.
- the diagnosis of the coolant temperature signal can be carried out with an extended map or with additional information in the control unit.
- an additional map ' is expediently stored in the control unit, which theoretically simulates the increase in the Ternperat.uran' of the reference component. In this way it can be recognized whether the coolant temperature is within the specified range
- the differential pressure can be selected in a simple manner according to an embodiment of the invention as a reference parameter.
- a setpoint for a differential pressure is determined from a control signal of the coolant pump using a differential pressure map.
- the throttle point can be formed by the coolant pump itself or can be located at another point in the main flow of the coolant. From the setpoint and an actual value of the differential pressure, which is transmitted to a ner throttle point "is measured in the main flow of the coolant, a difference is formed which is compared with a lower and upper permissible deviation.
- the throttle point can be formed by the coolant pump itself or at another point in the main flow of the
- Coolant The permissible deviations result from corresponding maps depending on the speed and the load of the internal combustion engine.
- a further simplified method results according to a further embodiment of the invention, which is particularly suitable for coolant circuits with a mechanically driven coolant pump and in whose coolant circuit a throttle valve for regulating the volume flow is provided.
- a setpoint for a differential pressure is specified using a differential pressure map.
- an actual value for a differential pressure is determined from the temperature of the coolant at the output of the internal combustion engine and an absolute pressure of the coolant after the coolant pump using a further differential pressure map.
- the difference between the target value and the actual value of the differential pressure is compared, as described above, with a corresponding lower and upper permissible deviation of the differential pressure.
- the permissible deviations are obtained from the speed and load of the internal combustion engine with the aid of corresponding maps.
- FIG. 1 shows a schematic structure of a coolant circuit for an internal combustion engine
- FIG. 2 shows evaluation logic for a coolant circuit with a differential pressure sensor
- FIG. 3 shows a variant of FIG. 2
- Fig. 4 is an evaluation logic for a coolant circuit with an absolute pressure sensor.
- An internal combustion engine 10 includes a cylinder head 12 and a cylinder block 14, which are connected to a coolant circuit 16. The direction of flow of the coolant in the coolant circuit 16 is indicated by arrows.
- a coolant pump 32 conveys the coolant from a suction line 30 via the cylinder block 14 and the cylinder head 12 into a return line 28.
- a cooler 18, which cooperates with a fan 20, is connected between this and the suction line 30. Parallel to the cooler 18 is a bypass line 24 and a heating Meleyer 22 provided, the flow through the 'cooler 18 and the bypass line 24 is controlled by a control valve 26.
- a differential pressure sensor 34 is provided parallel to the coolant pump 32 and detects the differential pressure between the suction side and the pressure side of the coolant pump 32.
- a pressure sensor 36 is arranged on the pressure side of the coolant pump 32, which can be electrically or mechanically driven. This determines the absolute pressure of the coolant in relation to the environment.
- a temperature sensor 80 and a throttle valve 78 are located at the output of the cylinder head 12 of the internal combustion engine 10.
- the differential pressure sensor 34, the pressure sensor 36 and the temperature sensor 80 are connected to a control unit 76 via signal lines, which among other things. the monitoring of the cooling circuit 16 takes over.
- a volume flow map 42 in the control unit 76 a volume flow map 42, temperature maps 46 and 52 and deviation maps 56 and 58 filed.
- the control unit 76 receives a speed signal 48 and a load signal 50 from the internal combustion engine 10. It also determines from the control signal 38 of the coolant pump 32 and the differential pressure signal 40 With the help of the volume flow map 42, an actual value of the volume flow, from which it is generated using the coolant temperature signal 44 and a temperature map. 46 for a reference component, for example the cylinder block 14 or the Cylinder head 12, an actual value for the temperature of the reference component 12, 14 is calculated.
- the control unit 76 uses the deviation signal 56 to determine a permissible upper deviation from the speed signal 48 and the load signal 50.
- a permissible lower deviation is determined with a further deviation map 58.
- the permissible deviations are compared in difference formers 60 and 62 with the difference from the comparator module 54. If the result is greater than or equal to one, one is generated
- Signal output 64 an output signal 66 from which a fault in the coolant circuit 16 can be concluded.
- the differential pressure at a throttle point or resistor for example the coolant pump 32
- the reference parameter on which the volume flow of the coolant is essentially dependent.
- a setpoint value for the differential pressure is determined from the control signal 38 of the coolant pump 32 with the aid of a differential pressure map 68, and the difference with the actual value of the differential pressure according to the differential pressure signal 40 is formed with the comparator module 54.
- the difference formed in this way is compared with permissible deviations in the difference formers -60 and 62, the signal output 64 likewise generating an output signal if the result is equal to or greater than one. Deviations are determined in the same way as in the evaluation logic according to FIG. 2.
- the setpoint value of the differential pressure is determined from the control signal 38 of the coolant pump 32 and a valve position signal 70 of the throttle valve 78 with the aid of a differential pressure map 82.
- the actual value of the differential pressure is calculated from the coolant temperature signal 44 and a pressure signal 72 for the pressure of the coolant in relation to the environment using a differential pressure map 74.
- the comparator block 54 forms the difference between the setpoint and the actual value of the differential pressure. The difference is then compared to the permissible lower and upper deviations, as in the evaluation logic according to FIG. 3, and a corresponding output signal is generated if the result is greater than or equal to one.
Landscapes
- 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)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50210765T DE50210765D1 (de) | 2001-06-12 | 2002-04-17 | Verfahren zum überwachen eines kühlflüssigkeitskreislaufs einer brennkraftmaschine |
US10/333,547 US6851399B2 (en) | 2001-06-12 | 2002-04-17 | Method for monitoring a coolant circuit of an internal combustion engine |
JP2003503945A JP4069068B2 (ja) | 2001-06-12 | 2002-04-17 | 内燃機関の冷却流体回路の監視方法 |
KR10-2003-7001917A KR20030077527A (ko) | 2001-06-12 | 2002-04-17 | 내연 기관의 냉각제 순환계 모니터링 방법 |
EP02732398A EP1399656B1 (de) | 2001-06-12 | 2002-04-17 | Verfahren zum überwachen eines kühlflüssigkeitskreislaufs einer brennkraftmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10128423.3 | 2001-06-12 | ||
DE10128423A DE10128423A1 (de) | 2001-06-12 | 2001-06-12 | Verfahren zum Überwachen eines Kühlflüssigkeitskreislaufs einer Brennkraftmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002101210A1 true WO2002101210A1 (de) | 2002-12-19 |
Family
ID=7687993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/001417 WO2002101210A1 (de) | 2001-06-12 | 2002-04-17 | Verfahren zum überwachen eines kühlflüssigkeitskreislaufs einer brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6851399B2 (de) |
EP (1) | EP1399656B1 (de) |
JP (1) | JP4069068B2 (de) |
KR (1) | KR20030077527A (de) |
DE (2) | DE10128423A1 (de) |
WO (1) | WO2002101210A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2853710A1 (de) * | 2013-09-30 | 2015-04-01 | Peugeot Citroën Automobiles Sa | Drehmoment- und lastabhängige Verbrennungsmotorsteuerung |
FR3038345A1 (fr) * | 2015-07-01 | 2017-01-06 | Peugeot Citroen Automobiles Sa | Procede d’estimation du debit de liquide de refroidissement dans un circuit de refroidissement pour moteur thermique |
CN111075553A (zh) * | 2018-10-22 | 2020-04-28 | 现代自动车株式会社 | 确定车辆的冷却剂状况的方法 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10342935B4 (de) * | 2003-09-17 | 2015-04-30 | Robert Bosch Gmbh | Verbrennungskraftmaschine mit einem Kühlkreislauf |
EP1707035B1 (de) * | 2004-01-13 | 2009-12-09 | Koninklijke Philips Electronics N.V. | Flüssigkeitsströmungssensor für röntgenröhren |
GB2420846B (en) | 2004-12-04 | 2009-07-08 | Ford Global Technologies Llc | A cooling system for a motor vehicle engine |
US8024149B2 (en) * | 2006-08-03 | 2011-09-20 | Titanium Metals Corporation | Overheat detection system |
DE102008040283A1 (de) * | 2008-07-09 | 2010-01-14 | Zf Friedrichshafen Ag | Kühlsystem für ein Fahrzeug |
US8869756B2 (en) * | 2008-12-10 | 2014-10-28 | Ford Global Technologies, Llc | Cooling system and method for a vehicle engine |
DE102009018012B4 (de) * | 2009-04-18 | 2021-02-04 | Daimler Ag | Verfahren zum Steuern des Systemdrucks in einem Kühlmittelkreislauf |
JP5251844B2 (ja) * | 2009-11-24 | 2013-07-31 | トヨタ自動車株式会社 | 冷却装置の異常判定装置および冷却装置の異常判定方法 |
CN103180565A (zh) * | 2010-11-01 | 2013-06-26 | 丰田自动车株式会社 | 内燃机的冷却系统 |
US20130019819A1 (en) * | 2011-07-18 | 2013-01-24 | Caterpillar Inc. | Coolant circuit for engine with bypass line |
JP5786778B2 (ja) * | 2012-03-22 | 2015-09-30 | トヨタ自動車株式会社 | エンジンの冷却制御装置 |
US10844772B2 (en) | 2018-03-15 | 2020-11-24 | GM Global Technology Operations LLC | Thermal management system and method for a vehicle propulsion system |
DE102019202872A1 (de) * | 2019-03-04 | 2020-09-10 | Audi Ag | Kühlmittelausgleichsanordnung, Kraftfahrzeug mit einer solchen und Verfahren zur Druckregulierung in einem Kühlkreislauf |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5471239A (en) * | 1977-11-17 | 1979-06-07 | Kubota Ltd | Cooling ability surveilance device of water-cooling type cooler |
DE4109498A1 (de) | 1991-03-22 | 1992-09-24 | Bosch Gmbh Robert | Vorrichtung und verfahren zur regelung der temperatur einer brennkraftmaschine |
US5201285A (en) * | 1991-10-18 | 1993-04-13 | Touchstone, Inc. | Controlled cooling system for a turbocharged internal combustion engine |
EP0578564A1 (de) * | 1992-07-06 | 1994-01-12 | Valeo Thermique Moteur | Kühlungseinrichtung für eine Kraftwagenmaschine |
FR2793842A1 (fr) * | 1999-05-17 | 2000-11-24 | Valeo Thermique Moteur Sa | Dispositif electronique de regulation du refroidissement d'un moteur thermique de vehicule automobile |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4062231A (en) * | 1976-05-07 | 1977-12-13 | United Technologies Corporation | Engine cooling system diagnostics |
JPS6181517A (ja) * | 1984-09-28 | 1986-04-25 | Nissan Motor Co Ltd | 内燃機関の沸騰冷却装置 |
JP2653290B2 (ja) * | 1991-10-16 | 1997-09-17 | 日産自動車株式会社 | エンジンの冷却装置 |
JP4337207B2 (ja) * | 2000-02-10 | 2009-09-30 | 株式会社デンソー | 液冷式内燃機関の冷却装置 |
-
2001
- 2001-06-12 DE DE10128423A patent/DE10128423A1/de not_active Withdrawn
-
2002
- 2002-04-17 EP EP02732398A patent/EP1399656B1/de not_active Expired - Lifetime
- 2002-04-17 WO PCT/DE2002/001417 patent/WO2002101210A1/de active IP Right Grant
- 2002-04-17 DE DE50210765T patent/DE50210765D1/de not_active Expired - Lifetime
- 2002-04-17 US US10/333,547 patent/US6851399B2/en not_active Expired - Lifetime
- 2002-04-17 JP JP2003503945A patent/JP4069068B2/ja not_active Expired - Fee Related
- 2002-04-17 KR KR10-2003-7001917A patent/KR20030077527A/ko not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5471239A (en) * | 1977-11-17 | 1979-06-07 | Kubota Ltd | Cooling ability surveilance device of water-cooling type cooler |
DE4109498A1 (de) | 1991-03-22 | 1992-09-24 | Bosch Gmbh Robert | Vorrichtung und verfahren zur regelung der temperatur einer brennkraftmaschine |
US5201285A (en) * | 1991-10-18 | 1993-04-13 | Touchstone, Inc. | Controlled cooling system for a turbocharged internal combustion engine |
EP0578564A1 (de) * | 1992-07-06 | 1994-01-12 | Valeo Thermique Moteur | Kühlungseinrichtung für eine Kraftwagenmaschine |
FR2793842A1 (fr) * | 1999-05-17 | 2000-11-24 | Valeo Thermique Moteur Sa | Dispositif electronique de regulation du refroidissement d'un moteur thermique de vehicule automobile |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 003, no. 097 (M - 069) 17 August 1979 (1979-08-17) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2853710A1 (de) * | 2013-09-30 | 2015-04-01 | Peugeot Citroën Automobiles Sa | Drehmoment- und lastabhängige Verbrennungsmotorsteuerung |
FR3011273A1 (fr) * | 2013-09-30 | 2015-04-03 | Peugeot Citroen Automobiles Sa | Procede de regulation thermique d'un moteur a combustion interne en fonction du couple et du regime moteur |
FR3038345A1 (fr) * | 2015-07-01 | 2017-01-06 | Peugeot Citroen Automobiles Sa | Procede d’estimation du debit de liquide de refroidissement dans un circuit de refroidissement pour moteur thermique |
CN111075553A (zh) * | 2018-10-22 | 2020-04-28 | 现代自动车株式会社 | 确定车辆的冷却剂状况的方法 |
Also Published As
Publication number | Publication date |
---|---|
US20040011305A1 (en) | 2004-01-22 |
JP2004529287A (ja) | 2004-09-24 |
EP1399656B1 (de) | 2007-08-22 |
DE10128423A1 (de) | 2003-01-02 |
JP4069068B2 (ja) | 2008-03-26 |
US6851399B2 (en) | 2005-02-08 |
EP1399656A1 (de) | 2004-03-24 |
KR20030077527A (ko) | 2003-10-01 |
DE50210765D1 (de) | 2007-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE10359581B4 (de) | Verfahren zur Steuerung eines Fahrzeugmotorkühlsystems | |
EP1399656B1 (de) | Verfahren zum überwachen eines kühlflüssigkeitskreislaufs einer brennkraftmaschine | |
DE112016004767B4 (de) | Ventilsteuerungsvorrichtung für einen Kühlwasserkreislauf | |
DE69829957T2 (de) | Verfahren und vorrichtung zur kontrolle der kühlung eines verbrennungsmotors | |
DE102011101272B4 (de) | Luftströmungsklappensystem für ein Lüftungsgitter mit diskreter Klappensteuerung | |
EP0731261B1 (de) | Verfahren zur Regelung eines Kühlkreislaufes eines Verbrennungskraftmotors, insbesondere für Kraftfahrzeuge | |
DE4426494B4 (de) | Verfahren zur Überwachung des Kühlsystems bei einer Brennkraftmaschine | |
DE102019112652B4 (de) | Kühlmittelsteuerungssystem eines Fahrzeugs | |
DE3812267C2 (de) | Drehzahl-Regelvorrichtung für ein hydraulisch betriebenes Kühlgebläse einer Brennkraftmaschine | |
DE19728351A1 (de) | Verfahren zur Wärmeregulierung einer Brennkraftmaschine | |
DE3608417A1 (de) | Leerlaufdrehzahlregelsystem fuer eine kraftfahrzeug-brennkraftmaschine | |
DE10062534A1 (de) | Doppelventilatorsteuersystem und -verfahren | |
EP1454039B1 (de) | Verfahren zur temperaturregelung eines motors | |
DE10134678A1 (de) | Vorrichtung zum Kühlen und Heizen eines Kraftfahrzeuges | |
DE10196991T5 (de) | Verfahren zur Steuerung eines drehzahlgeregelten Ventilators | |
DE4041937A1 (de) | Kuehlvorrichtung fuer eine brennkraftmaschine | |
DE102010026316A1 (de) | Motorkühlsystem für ein Fahrzeug | |
DE102014112195A1 (de) | Diagnose eines EGHR-Mechanismus | |
WO2006094636A1 (de) | Kühlkreislauf für eine brennkraftmaschine | |
DE60013082T2 (de) | Kühlungsregelungsvorrichtung einer Fahrzeugbrennkraftmaschine während eines Heissstarts | |
DE2806708C2 (de) | Vorrichtung zur Temperaturregelung eines Kühlsystems einer Brennkraftmaschine, insbesondere für Kraftfahrzeuge | |
DE10056155A1 (de) | Motorwasserpumpensteuersystem | |
DE102014104894B4 (de) | Drehzahlbasiertes Diagnosesystem für eine Strömungsvorrichtung | |
WO2019091949A1 (de) | Antriebseinrichtung mit einem kühlmittelkreislauf für ein kraftfahrzeug | |
DE10123106B4 (de) | Verfahren zum Überwachen eines Kühlflüssigkeitskreislaufs einer Brennkraftmaschine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2002732398 Country of ref document: EP |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10333547 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020037001917 Country of ref document: KR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 1020037001917 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003503945 Country of ref document: JP |
|
WWP | Wipo information: published in national office |
Ref document number: 2002732398 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2002732398 Country of ref document: EP |