EP2932064A1 - Kühlmittelkreislauf - Google Patents
KühlmittelkreislaufInfo
- Publication number
- EP2932064A1 EP2932064A1 EP13802939.2A EP13802939A EP2932064A1 EP 2932064 A1 EP2932064 A1 EP 2932064A1 EP 13802939 A EP13802939 A EP 13802939A EP 2932064 A1 EP2932064 A1 EP 2932064A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coolant
- sensor
- concentration
- monitoring
- circuit
- 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
Links
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
- 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
- F01P11/20—Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
-
- 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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/029—Expansion reservoirs
-
- 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
-
- 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
- F01P2025/13—Ambient 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
- F01P2025/80—Concentration anti-freeze
Definitions
- the invention relates to a coolant circuit for a
- Internal combustion engine having a coolant pump, at least one coolant line, a radiator and a coolant cavity in the internal combustion engine, wherein the coolant pump, the coolant ⁇ line , the radiator and the coolant cavity are filled with a coolant.
- the invention is characterized in that at least one sensor for monitoring the coolant concentration is permanently and permanently arranged in and / or on the coolant circuit. This has the advantage that even outside of workshop visits the vehicle too low a concentration of the frost ⁇ protection agent can be reliably detected in the coolant. Too high a concentration of antifreeze can be detected with the coolant circuit according to the invention.
- the sensor for monitoring the coolant concentration is an ultrasonic sensor.
- Ultrasonic sensors are long-lasting and cost-effective components with which the concentration of antifreeze in the coolant can be reliably detected.
- the coolant circuit additionally has an expansion vessel.
- the sensor for monitoring the coolant concentration may be arranged in or on the expansion vessel.
- the expansion tank is usually a readily accessible component that easily allows the inclusion of a sensor for monitoring the coolant concentration.
- the sensor for monitoring the coolant concentration may be arranged in or on the expansion vessel.
- Coolant concentration arranged in or on the coolant cavity.
- Thedeffenkavtician is located in the focal ⁇ combustion engine itself, with which the sensor for monitoring the coolant concentration can protect the internal combustion engine particularly effect form freezing.
- the sensor for monitoring the coolant concentration is arranged in or on the coolant pump and / or arranged in or on the coolant line, an effective monitoring of the proportion of antifreeze in the coolant can also take place and thus the coolant concentration can be determined reliably. This also applies if the sensor for monitoring the coolant concentration is arranged in or on the radiator.
- the sensor for monitoring the coolant concentration transmits its measurement results to an electronic control unit. If the electronic control unit is is additionally connected to an ambient temperature sensor, it can be determined with certainty whether the ambient temperature has fallen so far that there is a danger to the cooling circuit and / or the internal combustion engine.
- the electronic control unit determines based on the measurement results of the sensor for monitoring the coolant ⁇ concentration a minimum operating temperature for the coolant and this minimum operating temperature ver similar ⁇ for the coolant with the measurement result of the ambient temperature sensor. As a result, a freezing of the coolant in the coolant circuit can be reliably detected.
- an electronic alarm signal he witnesses ⁇ when the measurement result of the ambient temperature sensor falls below the minimum operating temperature of the coolant.
- This electronic warning signal can, for example, be displayed to the driver in the form of an error message and / or be used so that the internal combustion engine can not be started or shut down.
- the most likely case namely the freezing of the parked engine, can be reliably detected.
- FIG. 1 shows an internal combustion engine with four cylinders
- FIG. 2 shows a concentration sensor.
- the coolant ⁇ circuit 2 for the internal combustion engine comprises a coolant ⁇ pump 3, at least one coolant conduit 4, a radiator 7 and cooling cavities 13 in the internal combustion engine 1.
- the coolant By the cooling cavities 13 in the internal combustion engine 1, the coolant, the heat from the hot can 5 Take up internal combustion engine 1 and transport away.
- the hot coolant is transported from the coolant pump 3 through the coolant line 4 to the cooler 7, where the coolant 5 is usually cooled by past cold air flowing past ⁇ and then again the internal combustion engine 1 is supplied.
- Internal combustion engine 1 in motor vehicles usually consists of water, to which some substances that reduce corrosion are added.
- This water has the property of freezing at temperatures of less than 0 ° C, which can lead to serious damage to the internal combustion engine 1 or the coolant circuit 2. Therefore, the aqueous coolant 5 is usually added substances that lower the freezing point of the solution well below 0 ° C.
- the concentration of the substances that reduce the freezing point of the coolant 5 is too low, thereby freezing the internal combustion engine 1 or the coolant circuit ⁇ run 2 is possible.
- a sensor 8 for monitoring the concentration of coolant is fixed and permanent. This sensor 8 for monitoring the coolant concentration may for example be an ultrasonic sensor.
- an expansion vessel 6 can be arranged in the coolant circuit 2. This expansion vessel 6 can compensate for the thermal expansion of the coolant 5 in the cooling ⁇ medium circuit 2.
- the sensor 8 for monitoring the coolant concentration may, for. B. in or on the coolant cavity 13 of the internal combustion engine 1 may be arranged. In combination with this or as an independent solution, the sensor 8 for monitoring the coolant concentration may be arranged on or in the coolant pump 3. In addition, the sensor 8 may be arranged to monitor the coolant concentration in or on the coolant line 4 and / or in or on the cooler 7.
- the sensor 8 for monitoring the refrigerant concentration transmits the detected concentration of the cooling agent solution 5 9, to an electronic control device, this electronic STEU ⁇ er réelle 9 can detect information about the refrigerant concentration, the temperature below which the cooling means comprises means would freeze. 5 This temperature can be compared with an outside temperature, which is transmitted from an ambient temperature sensor 14 to the electronic control unit 9. Once the electronic control unit detects that the external temperature falls below the glass transition temperature of the coolant 5, the electronic control device a warning signal can he witnesses ⁇ and / or to ensure by electronic means, that the sub-cooled and / or frozen internal combustion engine is not started.
- Fig. 2 shows a concentration sensor 8, which is designed as an ultrasonic sensor.
- the sensor element 17 is excited by a frequency generator 10, which is integrated in the electronic control unit 9 to vibrate. However, the sensor element 17 can also by an electrical circuit 9 to
- Vibrations are excited, wherein the electrical circuit 9 is part of the concentration sensor 8 itself. These vibrations have frequencies in the ultrasonic range, whereby an ultrasonic wave 11 is emitted and through the coolant ⁇ medium 5 to a reflector 12 runs. At the reflector 12, the ultrasonic wave 11 is reflected and thrown back to the sensor element 17.
- the sensor element 17 now acts as a receiver for the ultrasonic wave 11, the transit time of the ultrasonic wave 11 from the sensor element 17 via the reflector 12 back to the sensor element 17 is characteristic of the concentration of the freezing point lowering additives in the coolant.
- the sensor 8 shown here for monitoring the coolant concentration deliver a corresponding signal to the concentration of the coolant to the electronic control unit 9, whereby the electronic control unit 9 can then calculate the temperature from which the coolant 5 would freeze.
- the coolant circuit 2 presented here for an internal combustion engine 1 with at least one sensor 8 for monitoring the coolant concentration can contribute to avoiding costly damage to the internal combustion engine 1 and thus to conserve resources.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012223454.3A DE102012223454A1 (de) | 2012-12-17 | 2012-12-17 | Kühlmittelkreislauf |
| PCT/EP2013/075929 WO2014095451A1 (de) | 2012-12-17 | 2013-12-09 | Kühlmittelkreislauf |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2932064A1 true EP2932064A1 (de) | 2015-10-21 |
| EP2932064B1 EP2932064B1 (de) | 2019-09-04 |
Family
ID=49759282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13802939.2A Active EP2932064B1 (de) | 2012-12-17 | 2013-12-09 | Kühlmittelkreislauf |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9850804B2 (de) |
| EP (1) | EP2932064B1 (de) |
| CN (1) | CN104870772A (de) |
| DE (1) | DE102012223454A1 (de) |
| WO (1) | WO2014095451A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11129399B2 (en) * | 2016-08-16 | 2021-09-28 | Messer Industries Usa, Inc. | In-line cryogenic method and system for cooling liquid products |
| DE102016124652B3 (de) * | 2016-12-16 | 2018-02-01 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zur Ermittlung einer Kühlmittelkonzentration |
| CN110259568A (zh) * | 2019-06-28 | 2019-09-20 | 潍柴动力股份有限公司 | 一种发动机冷却液检测方法及发动机冷却系统 |
| EP3783275A1 (de) * | 2019-08-21 | 2021-02-24 | Grundfos Holding A/S | Pumpensystem |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227938A (en) | 1975-08-28 | 1977-03-02 | Nippon Soken Inc | Antifreezer sensor device |
| JPS6060005B2 (ja) | 1980-07-03 | 1985-12-27 | 日産自動車株式会社 | エンジンの冷却装置 |
| JPS57171019A (en) | 1981-04-11 | 1982-10-21 | Mazda Motor Corp | Controlling device of water pump of engine |
| US4503814A (en) * | 1983-05-12 | 1985-03-12 | Nissan Diesel Motor Company, Limited | System for preventing cavitation in water-cooled internal combustion engine |
| US4905508A (en) * | 1989-03-09 | 1990-03-06 | Thomas A. Ramona | Radiator hose hydrometer |
| JPH10259730A (ja) * | 1997-03-18 | 1998-09-29 | Kubota Corp | エンジンの強制循環式水冷装置 |
| GB2360838B (en) * | 2000-03-31 | 2004-04-07 | Rover Group | Cooling system expansion tank |
| JP3851881B2 (ja) * | 2003-02-20 | 2006-11-29 | 本田技研工業株式会社 | 内燃機関の冷却水の温度センサの故障を診断する装置 |
| KR100612964B1 (ko) * | 2004-04-08 | 2006-08-14 | 현대자동차주식회사 | 차량의 서모스탯 모니터링 장치 및 방법 |
| US7367291B2 (en) | 2004-07-23 | 2008-05-06 | General Electric Co. | Locomotive apparatus |
| JP2007023933A (ja) * | 2005-07-19 | 2007-02-01 | Mitsubishi Electric Corp | 内燃機関の制御装置 |
| JP2007247506A (ja) | 2006-03-15 | 2007-09-27 | Toyota Motor Corp | 内燃機関冷却系の不凍液濃度推定装置 |
| US20090311772A1 (en) * | 2008-04-25 | 2009-12-17 | E-Fuel Corporation | Micro refinery for ethanol production |
| JP2010071080A (ja) * | 2008-09-16 | 2010-04-02 | Denso Corp | 車両用冷却システムの異常診断装置 |
| DE112010002904B4 (de) * | 2009-07-13 | 2021-06-17 | Schaeffler Technologies AG & Co. KG | Vorrichtung zum Verhindern des Inbewegungssetzens eines Kraftfahrzeugs |
| WO2011030394A1 (ja) * | 2009-09-08 | 2011-03-17 | トヨタ自動車 株式会社 | 車両の冷却装置 |
| JP5201418B2 (ja) * | 2009-11-10 | 2013-06-05 | アイシン精機株式会社 | 内燃機関冷却システム及び内燃機関冷却システムにおける故障判定方法 |
| DE102010027946A1 (de) * | 2010-04-20 | 2011-10-20 | Robert Bosch Gmbh | Überwachungssysten für einen Kühlmittelkreislauf |
| US8346422B2 (en) * | 2010-05-24 | 2013-01-01 | Ford Global Technologies, Llc | Hybrid electric vehicle thermal management system |
| JP2012086735A (ja) * | 2010-10-21 | 2012-05-10 | Toyota Motor Corp | ハイブリッド車両の制御装置 |
| WO2012140748A1 (ja) | 2011-04-13 | 2012-10-18 | トヨタ自動車株式会社 | 車両の診断装置および車両の診断方法 |
| US9091041B2 (en) * | 2012-01-25 | 2015-07-28 | Hitachi Construction Machinery Co., Ltd. | Construction machine |
-
2012
- 2012-12-17 DE DE102012223454.3A patent/DE102012223454A1/de not_active Ceased
-
2013
- 2013-12-09 US US14/652,671 patent/US9850804B2/en active Active
- 2013-12-09 WO PCT/EP2013/075929 patent/WO2014095451A1/de not_active Ceased
- 2013-12-09 EP EP13802939.2A patent/EP2932064B1/de active Active
- 2013-12-09 CN CN201380065760.4A patent/CN104870772A/zh active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014095451A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012223454A1 (de) | 2014-06-18 |
| WO2014095451A1 (de) | 2014-06-26 |
| CN104870772A (zh) | 2015-08-26 |
| US20150369116A1 (en) | 2015-12-24 |
| EP2932064B1 (de) | 2019-09-04 |
| US9850804B2 (en) | 2017-12-26 |
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