凯美瑞轿车空调故障分析和维修工艺摘要汽车空调系统是实现对车厢内空气进行制冷、加热、换气和空气净化的装置。它可以为乘车人员提供舒适的乘车环境，降低驾驶员的疲劳强度，提高行车安全。空调装置已成为衡量汽车功能是否齐全的标志之一。作为汽车业维修人员,我们应该知道作为汽车组成的一部分:汽车空调的组成和功用,并应对汽车空调系统常见故障现象、故障部位、故障的检测、诊断和排除有一定的认识,明确其检测和诊断的基本思路。本设计以凯美瑞轿车为参照讲述了汽车空调的组成与功用，制冷剂和压缩机油，制冷原理，空调制冷剂和压缩机油的检查与加注，以及润滑系常见故障诊断与排除，以及凯美瑞空调系统的维修案例。随着汽车科技的发展，汽车空调的结构也随之越来越复杂。我们只有掌握更多的知识和实践经验，才能更好地运用检测仪器快速准确地查找汽车空调的故障原因，并把故障排除。关键词：汽车空调结构故障诊断维修注意事项AbstractVehicleairconditioningsystemisadeviceforcooling,heating,ventilatingandpurifyingairinthecompartment.Itcanprovidepassengerswithacomfortablerideenvironment,reducethedriver'sfatiguestrength,improvetrafficsafety.Airconditioningunithasbecomeameasureofwhetherthecarisfullyfunctionalsigns.Astheautoindustrymaintenancepersonnel,weshouldknowthatpartofthecompositionasacar:thecompositionandfunctionoftheautomobileairconditioning,anddealwiththeautomobileairconditioningsystemcommonfaults,faultlocation,faultdetection,diagnosisandexclusionhasacertainunderstanding,clearthedetectionanddiagnosisofthebasicideas.ThisdesigntoCamrysedanforreferenceaboutthecompositionandfunctionoftheautomobileairconditioner,refrigerantandcompressoroil,refrigerationprinciple,air-conditioningrefrigerantandcompressioncheckandfillingoflubricatingoilandlubricatingsystemcommonfaultdiagnosisandelimination,andCamryair-conditioningsystemmaintenancecasecases.Withthedevelopmentofautomobiletechnology,thestructureoftheautomobileairconditioningismoreandmorecomplicated.Weonlyhavemoreknowledgeandpracticalexperience,tobetteruseofthedetectioninstrumenttoquicklyandaccuratelyfindthefaultofthecarairconditioning,andtroubleshooting.Keywords:Automotiveairconditioningstructurefaultdiagnosisandmaintenanceofmattersneedingattention目录凯美瑞轿车空调故障分析及维修工艺....................................................................................................1第一章凯美瑞空调系统的构成..............................................................................................................31.1制冷系统.............................................................................................................................................31.2暖风系统.............................................................................................................................................61.3通风系统.............................................................................................................................................7第二章凯美瑞空调系统制冷原理..........................................................................................................82.1压缩系统.............................................................................................................................................92.2冷凝系统.............................................................................................................................................92.3减压系统.........................................................................................
