EP1567377A1 - Procede de gestion d'energie d'installations de climatisation - Google Patents

Procede de gestion d'energie d'installations de climatisation

Info

Publication number
EP1567377A1
EP1567377A1 EP03775295A EP03775295A EP1567377A1 EP 1567377 A1 EP1567377 A1 EP 1567377A1 EP 03775295 A EP03775295 A EP 03775295A EP 03775295 A EP03775295 A EP 03775295A EP 1567377 A1 EP1567377 A1 EP 1567377A1
Authority
EP
European Patent Office
Prior art keywords
air conditioning
compressor
energy management
conditioning compressor
engine
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.)
Withdrawn
Application number
EP03775295A
Other languages
German (de)
English (en)
Inventor
Rolf RÖHM
Bernd Seiler
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1567377A1 publication Critical patent/EP1567377A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/323—Cooling devices using compression characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B60H1/3208—Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3266—Cooling devices information from a variable is obtained related to the operation of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3269—Cooling devices output of a control signal
    • B60H2001/327—Cooling devices output of a control signal related to a compressing unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/26—Problems to be solved characterised by the startup of the refrigeration cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements

Definitions

  • the invention relates to a method for energy management of air conditioning systems, in particular air conditioning systems with a plurality of air conditioning compressors.
  • either one or more air conditioning compressors are used to generate cold air for each refrigeration cycle.
  • the air conditioning compressors are activated immediately by starting the internal combustion engine.
  • the internal combustion engine or electric drive is very heavily loaded by the start-up of the air conditioning compressors and almost runs out.
  • DE 199 60 079 A1 discloses a method for switching various classes of consumers on and off by means of switching elements in the context of energy management carried out by a control unit, in particular in a motor vehicle.
  • the different classes of consumers have different priorities, but it is possible to adapt the prioritization of the consumers during operation, which takes into account the perceptibility of the operating states caused by a switchover.
  • the air conditioning compressor (s) are switched off as the lowest priority consumer in the acceleration phase in order to switch off the braking effect.
  • the individual consumer can not join a class when the state changes get lower priority than the class in which it is in the normal state, ie if sufficient energy supply is ensured during normal driving. Switching takes place in such a way that individual consumers in a class are switched, and is carried out either successively, in line with the state of charge or in parallel if several consumers have to be switched to compensate, or if necessary, the entire class.
  • the inventive method for energy management of air conditioning systems provides better regulation of the idling stability of an internal combustion engine or drive.
  • the motor / drive works more stable. Fluctuations in speed or start-up jerking due to the refrigerant compressors being switched on are minimized. In this way, the comfort for the customer can be increased.
  • FIG. 1A to 1D a flowchart of a method according to the invention for energy management of air conditioning systems
  • Fig. 3 shows an exemplary waveform for switching off an air conditioning compressor
  • FIG. 4 with the figures 4a and 4b exemplary profiles of a factor for reducing the performance of the air conditioning compressor
  • FIG. 1 is divided into FIGS. 1A to 1D for the sake of clarity.
  • step S1 defines which refrigerant compressor has a high priority and which has a lower priority.
  • the air conditioning compressor assigned to a front vehicle area is assigned a higher priority than the air conditioning compressor assigned to a rear vehicle area, so that after a start the air drawn in is first dehumidified, so that the windshield is not fogged up.
  • a query is made as to whether a vehicle engine is started, the engine is idling, or the engine or vehicle drive is in full load operation and an acceleration bit is set, by means of which the air conditioning compressor is set beforehand was switched off.
  • step S3 If one of these conditions queried in steps S2a, S2b and S2c is fulfilled, the energy management according to the invention is carried out (steps S4 to S20). If none of the conditions queried in steps S2a to S2c is fulfilled, a conventional control of the air conditioning system is carried out (step S3).
  • step S2a If it is recognized in step S2a that there is a restart of the engine, the air conditioning compressor assigned to the front vehicle area, i.e. the air conditioning compressor is controlled with the highest priority so that the front area of the vehicle is air-conditioned as quickly as possible after the engine has started, i.e. the sucked-in air is dehumidified and fogging of the windscreen is avoided. Then in step S5, after a predetermined time T, the air conditioning compressor assigned to the rear vehicle area, i.e. the air conditioning compressor is controlled with a lower priority.
  • the predefined time T is a predefined time, which is determined by a type or size of the air conditioning compressor or ambient temperature or a refrigerant pressure, for example from 10 to 48 Nm, in order for the engine to take the load which the air conditioning compressor has on the combustion engine. Tor / motor vehicle drive comes to settle.
  • This predetermined time T can be approximately 3 seconds, for example.
  • step S2a if the result in step S2a is that there is no engine restart, the flow advances to step S2b, in which it is checked whether the engine is idling.
  • step S6 If it is recognized in step S2b that the engine is idling, it is checked whether there is an air conditioner request signal (step S6). If the air conditioning system request signal is present in step S6, an air conditioning compressor actuating signal Komp_Stell and an expected air conditioning compressor torque M_KOMP are simultaneously output to an engine control unit, for example on a CAN (step S7). In response to this air conditioning compressor torque M_KOMP, the engine control unit calculates a load increase signal L as a function of the air conditioning compressor torque M__KOMP in step S8 and outputs it to the engine after a predetermined time T3. A compressor current corresponding to the load increase signal L calculated in step S8 is output in step S9 with a switch-on delay time T1 from the motor to the air conditioning compressor. In FIGS. 2 and 3, KOMP_EIN denotes a compressor switch-on signal.
  • step S10 it is checked in step S10 whether an off switch, for example a manual switch, has been actuated to switch off the air conditioning system. If the result of this check in step S10 shows that an off switch has been actuated, all the air conditioning compressors of the associated cooling circuit are switched off. The process then returns to step S2a. If the result in step S10 is that the switch has not been operated, it is checked whether an air conditioning compressor of lower priority is present. If so, the process returns to step S7 with a time delay T. If no, the process returns to step S2a.
  • an off switch for example a manual switch
  • step S6 to S10 is carried out for the air conditioning compressor with the next lowest priority. It should be noted that if the air conditioning compressors are switched off, it is not necessary to differentiate between the different priorities, but instead all the air conditioning compressors can be switched off simultaneously, ie without a time delay, without adhering to the predetermined time T.
  • FIGS. 2 and 3 Exemplary signal profiles for switching an air conditioning compressor on and off are shown in FIGS. 2 and 3.
  • step S2c it is checked whether an acceleration bit is set on the CAN bus. Setting the acceleration bit is equivalent to reducing the performance of the air conditioning compressor as a function of the outside temperature, i.e. the air conditioning compressor is reduced in power for a maximum of a predetermined time T4.
  • FIG. 4 with FIGS. 4a and 4b shows the course of a factor for reducing the performance of the air conditioning compressor when the acceleration bit is present for at least the period T4 or T4 *, depending on whether the outside temperature is above or below a threshold value tA * th lies or not.
  • T4 can be 8 seconds at an outside temperature above a threshold tA * th of, for example, 25 ° C, while T4 * below the threshold tA * th is 5 seconds. If the acceleration bit is reset before the period T4 or T4 * has elapsed, the air conditioning compressor starts up immediately with the slope shown in FIG. 4 with FIGS. 4a and 4b, depending on the outside temperature tA *.
  • the air conditioning compressor Before a new shutdown or reduction in performance can take place, the air conditioning compressor must have been switched on for at least a period T5, T5 being significantly larger than T4. For example, T5 can be 20 seconds.
  • T5 can be 20 seconds.
  • the outside temperature tA * is determined in step S14 and progressed to step S15.
  • step S15 it is decided whether the outside temperature tA * is above a predetermined threshold tA * th. If it lies above the threshold value tA * th, the air conditioning compressor is switched off in step SIS, as shown in FIG. 4a, over a period T4, otherwise the switch-off takes place over a period T4 * (step S17).
  • step S16a or S17a monitoring takes place in step S16a or S17a, whether the acceleration bit is still set. If the acceleration bit is no longer set in step S16a or S17a, the air conditioning compressor is started up in step S18 with the gradient determined from FIGS. 4a and 4b. If the acceleration bit is still set in step S16a or S17a, the shutdown is ended in step S19 or S20 after the period T4 or T4 * and the air conditioning compressor is started up again with the slope shown in FIGS. 4a and 4b.
  • Steps S2c, S14 to S20 are repeated for the air conditioning compressor with the next lower priority.
  • steps S2a to S2c can also take place in a changed order or simultaneously, without deviating from the basic idea of the invention.
  • the present invention discloses a method for energy management of air conditioning systems in motor vehicles, in particular air conditioning systems with multiple air conditioning compressors.
  • the method according to the invention prevents a very heavy load on an engine of a motor vehicle as well a fast going out when starting the air conditioning compressors, as it currently occurs when the motor of the motor vehicle is started, after the motor of the motor vehicle is idling, as well as after an acceleration process in which the motor has been at full load.
  • each of the air conditioning compressors is assigned a different priority, for example the air conditioning compressor for a front area of the vehicle, which is intended, among other things, to prevent the windshield from fogging up, the highest priority and the air conditioning compressor for a rear area of the vehicle a lower priority.
  • the air conditioning compressors are switched on successively with a predetermined switch-on delay time in response to request signals in accordance with this assigned priority. On the other hand, it can be switched off at the same time.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un procédé de gestion d'énergie d'installations de climatisation comportant plusieurs compresseurs de climatisation dans des automobiles. Ledit procédé empêche le moteur d'automobile d'être trop sollicité et d'être proche de caler lorsque les compresseurs de climatisation se mettent marche, après un démarrage ou un fonctionnement à vide du moteur de ladite automobile, y compris après un processus d'accélération. A cet effet, une priorité différente est allouée (51) à chacun des compresseurs de climatisation, par exemple la plus haute priorité est allouée au compresseur de climatisation prévu pour une zone avant du véhicule, et une priorité moindre est allouée au compresseur de climatisation prévu pour une zone arrière du véhicule. Si, lors d'une interrogation d'état (52a, b, c), un des états mentionnés précédemment est identifié, les compresseurs de climatisation sont enclenchés dans chaque cas successivement, avec un temps de temporisation de mise en route prédéterminé, en fonction de cette priorité allouée.
EP03775295A 2002-12-02 2003-11-05 Procede de gestion d'energie d'installations de climatisation Withdrawn EP1567377A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10256410A DE10256410B3 (de) 2002-12-02 2002-12-02 Verfahren zum Energiemanagement von Klimaanlagen
DE10256410 2002-12-02
PCT/EP2003/012301 WO2004050402A1 (fr) 2002-12-02 2003-11-05 Procede de gestion d'energie d'installations de climatisation

Publications (1)

Publication Number Publication Date
EP1567377A1 true EP1567377A1 (fr) 2005-08-31

Family

ID=31502569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03775295A Withdrawn EP1567377A1 (fr) 2002-12-02 2003-11-05 Procede de gestion d'energie d'installations de climatisation

Country Status (5)

Country Link
US (1) US7461514B2 (fr)
EP (1) EP1567377A1 (fr)
JP (1) JP2006507979A (fr)
DE (1) DE10256410B3 (fr)
WO (1) WO2004050402A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4783247B2 (ja) * 2006-09-07 2011-09-28 サンデン株式会社 車両用空調装置
NL2001192C1 (nl) * 2008-01-17 2008-12-09 Eeuwe Durk Kooi Voertuig omvattende een luchtconditioneringssysteem.
US8538587B2 (en) * 2009-05-21 2013-09-17 Lennox Industries Inc. HVAC system with automated blower capacity dehumidification, a HVAC controller therefor and a method of operation thereof
DE202010017232U1 (de) 2010-10-06 2011-06-01 Zahn, Johannes, 74385 Vorrichtung zum automatischen Ein- und Ausschalten einer Kältemaschine
KR101795410B1 (ko) * 2016-07-04 2017-11-08 현대자동차 주식회사 차량용 컴프레서 제어 장치 및 방법
CN108087131B (zh) * 2017-11-21 2020-04-24 吉利汽车研究院（宁波）有限公司 用于平衡压缩机对车辆发动机扭矩影响的控制方法

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US4614089A (en) * 1985-03-19 1986-09-30 General Services Engineering, Inc. Controlled refrigeration system
US5766593A (en) * 1994-12-30 1998-06-16 Amgen Inc. Anti-inflammatory CD14 peptides
JPH11301255A (ja) * 1998-04-22 1999-11-02 Toyota Autom Loom Works Ltd 車両用空調装置
DE59908887D1 (de) 1998-12-15 2004-04-22 Bosch Gmbh Robert Verfahren zur ein- bzw. abschaltung von verbrauchern
JP4632543B2 (ja) * 1998-12-21 2011-02-16 ルードヴィッヒ インスティテュート フォー キャンサー リサーチ 切断ｖｅｇｆ−ｄの抗体及びその利用法
CA2383838A1 (fr) * 1999-09-17 2001-03-29 Mochida Pharmaceutical Co., Ltd. Procede de mesure fractionnel de proteine de cd14 soluble
JP2002052925A (ja) * 2000-08-09 2002-02-19 Toyota Industries Corp 車両用空調装置
US6761037B2 (en) * 2002-01-23 2004-07-13 Sanden Corporation Vehicle air conditioner using a hybrid compressor

Non-Patent Citations (1)

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Title
See references of WO2004050402A1 *

Also Published As

Publication number Publication date
DE10256410B3 (de) 2004-03-11
US20060162352A1 (en) 2006-07-27
JP2006507979A (ja) 2006-03-09
US7461514B2 (en) 2008-12-09
WO2004050402A1 (fr) 2004-06-17

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