宝马E60 空调系统学员专题培训手册（英文）.pdf

BMW Service Aftersales TrainingTechnical Vehicle DocumentationE60 Air Conditioning SystemsTechnical status:October 2002E60 Air Conditioning Systems Background MaterialBMW Service Aftersales TrainingContentsPageCHAP 1Introduction1 - Reference to existing documents1 - New system features2 - System advantages4CHAP 2IHKA basic1 - New system features1 System overview2 - Positions of the components in the vehicle2 - Inputs/outputs3 - System diagram5 - Heating circuit M54 engine10 - Heating circuit for M54 engine withindependent heating11 - Heating circuit for M57 TU engine withindependent heating12 Components13 - IHKA control panel/control unit13 - Heater/air conditioner IHKA basic23 - Microfilter system/intake30 System functions34 - Vehicle interior temperature control36 - Air distribution38 - Air volume control39 Notes for Service39 - IHKA control panel/control unit installation39 - Diagnosis39 - Programming39 - Coding40 - Key memory40 Country-specific version US42 - Components US42CHAP 3IHKA high1 - New system features1 System overview2 - Arrangement of components in the vehicle2 - Inputs/outputs3 - System diagram7 - Heating circuit for M54 engine withindependent heating13Chapter 1-4E60 Air Conditioning Systems Background MaterialBMW Service Aftersales Training- Heating circuit for M57 TU engine withindependent heating14 Components16 - IHKA control panel/control unit18 - Heater/air conditioner IHKA high34 - Condensation sensor39 System functions46 Notes for Service46 Country-specific version US46CHAP 4Electric auxiliary heater based on PTC principle1 - New system features1 - Comparison with previous systems2 - Advantages of the system2 System overview3 - Arrangement of components in the air conditioner3 - Inputs/outputs5 - System diagram6 Components7 - Electric auxiliary heater based on the PTC principle8 System functions14 - Actuation of the electric auxiliary heater14 Notes for Service18 - Service information18 - Diagnosis18HGK-E60_0800.frb, 13. 03. 2003 IntroductionBMW Service Aftersales TrainingE60 Air Conditioning Systems Background MaterialChapter 1 P.1Electrical/ Electronic SystemsIntroductionThe air conditioning systems installed in the E60 are described in this chapter. In terms of the scope of functions, there are two different versions of the integrated automatic climate control system (IHKA):- IHKA, basic version (IHKA basic)- IHKA, high version (IHKA high)- Reference to existing documentsOnly the new features and changes are described in the technical vehicle documentationIHKA basic, IHKA high and electric auxiliary heaterFamiliar system functions on which the IHKA in the E60 is based are described in the following technical vehicle documentation:E65 IHKAHGK-E60_0800.frb, 13. 03. 2003 IntroductionBMW Service Aftersales TrainingE60 Air Conditioning Systems Background MaterialChapter 1 P.2Electrical/ Electronic Systems- New system featuresNew components:- Electric auxiliary heater operating in accordance with the PTC principle in the diesel models: The heating elements are integrated in the heat exchanger and directly heat up the intake air in the air conditioner for temperature control of the vehicle interior.- Condensation sensor for avoiding or automatic elimination of windscreen fogging (condensation). The sensor is fitted in the mirror base below the rain and light sensor on the inner side of the windscreen (IHKA high only).New bus system:- Local interconnect network bus (LIN bus) for controlling the flap stepper motors, the electric auxiliary fan based on the PTC principle and the blower motor in the air conditioner.Differences/changes compared to E39- Modified control concept:- Reduced number of primary controls on the control panel, similar to that in the E65. On the IHKA high and basic versions, the temperature and air volume are controlled by means of rotary selectors.- Extended air conditioning functions such as air stratification or independent heating (option) are selected and activated by means of the controller in the central information display (CID).- Three different AUTO programs can be set in the CID by means of the controller: soft, standard, intensive. The settings have an influence on the flap program.HGK-E60_0800.frb, 13. 03. 2003 IntroductionBMW Service Aftersales TrainingE60 Air Conditioning Systems Background MaterialChapter 1 P.3Electrical/ Electronic Systems- Modified display concept:- Scope of display elements for the extended A/C functions in the CID similar to those in the E65. The required fan and temperature settings are not shown in the CID. The set values for temperature and air volume can be read off from scale rings (air volume in IHKA high: with LED illuminated ring). In the IHKA basic version, air distribution is set manually at the IHKA control panel/control unit. In the IHKA high version it is set by means of the controller in the CID.- The liquid crystal display from the E39 control panel is not installed in the E60.- Only stepper motors are used to actua。