发动机无法启动故障诊断与排除.pdf

课题名称发动机无法启动故障诊断与排除教材处理企业调研通过对汽修企业进行调研，汽车维护操作是汽修企业最常见的典型工作任务。汽车底盘和传动系统在汽车维护操作中所占的比例更大，最基本的汽车维护即是更好机油三滤和底盘维护。近年汽修技能大赛二级维护项目选用的车型是丰田卡罗拉，其维护操作步骤是建立在本教材的基础上的，所以本教材非常适用于大赛与教学相结合的教学模式。学情分析汽车维护操作一般放在第一学年进行教学。目的是让学生掌握汽车维护操作的基本内容和方法，并通过汽车维护内容，让学生对整个汽车和系统零部件有一个全面的认识。通过大赛和教学相结合，提高学生技能操作水平。学生在前段时间的学习中已经对汽车维护的基本内容和大体方法有了了解，并学习了发动机、制动器的维护方法和步骤，这都对以后的学习打下了基础，但是中职学生学习主动性不强，对理论知识的掌握能力弱，热衷实践操作。综合分析根据企业调研汽车底盘和传动系统常见故障和常见维护操作，以及汽修专业技能大赛二级维护项目的内容，并综合分析学生学情，确定教学目标和教学重难点。教学目标知识目标能够掌握汽车底盘传动系统的维护项目的内容和要求。能力目标能够对汽车底盘传动系统进行维护操作。德育目标培养细致认真的工作态度和爱岗敬业的职业精神，提高综合素质。重点难点教学重点掌握汽车底盘和传动系统维护项目的内容和要求。教学难点使用规范的方法和操作步骤对汽车底盘和传动系统进行实车维护操作。教学方法教法多媒体教学、演示教学学法小组合作探究学习、实践操作学习教学设计思路本着“理实一体化”的教学理念，并结合学校现有多媒体教学区、资料查询区、实践操作区和对外开放区“四区一体”的教学模式，设计教学思路如下：首先在多媒体教学区数字化教学平台通过PPT 对学生进行理论讲解；然后在资料查询区仿真教学平台让学生通过汽车维护操作虚拟实训软件模拟实训，这样可以强化操作步骤并减少耗材消耗；最后在实践操作区进行汽车维护实车实训。教学安排时间安排复习导入10min 理论讲解30min 虚拟实训40min 实车实训35min 总结评价5min 教学设计内容师生活动教师做上课准备，清点上课人数。并对学生进行分组。教师课前强调实训室安全注意事项。复习导入：1、上节课我们学习了汽车制动器维护，哪位同学能说一下制动系统的维护项目有哪些？2、哪位同学能复述一下汽车制动系各维护项目的维护方法？内容导入：汽车底盘和传动系统维护是汽车维护的主要内容，哪位同学能回答一下汽车底盘主要包括哪些组成部分吗？理论讲解：汽车底盘和传动系统维护对于汽车维护是非常重要的，如果底盘和传动系零部件发生故障，就不能舒适的行驶，因此对于汽车底盘和传动系的维护是非常有必要的。刚才同学已经回答了汽车底盘和传动系的零部件组成，那你知道汽车传动系和底盘的维护项目包括哪些吗？传动系和底盘的维护项目：离合器踏板；方向盘和连杆机构；动力转向液；球节；自动变速器液；手动变速器油/差速器油；车轮轴承；轮胎；润滑脂更换；详细介绍汽车底盘和传动系各项目维护方法和步骤，讲解检查/更好间隔期。让学生观看丰田汽车维护操作视频。虚拟实训：带领学生进入资料查询区仿真教学平台。通过景格汽车维护虚拟实训软件，让学生分组探究学习。1、用景格汽车维护虚拟实训软件演示虚拟实训的方法和步骤，并把理论知识再穿插其中，强化学生记忆。2、学生分组探究，练习一段时间后，每个小组选一名代表对汽车底盘和传动系统的维护操作进行演示，教师进行指导操作。教师：整理实训工位，做好上课准备。学生：班长汇报出勤人数，准备上课。教师：根据学生回答问题情况判断学生 掌 握 知 识 的 情况，并对上节课内容 进 行 回 顾 和 复习。教师：提问导入新课。教师：同过多媒体教学区数字化教学平台，用多媒体展示法向学生逐一介绍汽车底盘和传动系各维护项目的操作方法和注意事项。学生：跟随教师讲解思路，理解并掌握汽车底盘和传动系各维护项目的方法和步骤。教师：通过汽车维护虚拟实训软件演示如何对汽车底盘和传动系统进行维护操作。分组巡回指导学生：在教师演示过后，用景格汽车维 护 虚 拟 实 训 软文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 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ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3实车实训：带领学生进入实践操作区。1、教师在实车进行演示。并讲解汽车维护操作实训步骤。特别强调安全问题。2、学生分组，进行实车实训，加强实训操作。总结评价：1、教师对各小组进行评价总结。2、每个小组的学生对本小组进行自评，并对小组其他成员互评。件，分组探究汽车底盘和传动系统维护 的 具 体 操 作 步骤。教师：演示在实车上进行实践操作的方法步骤。强调安全。分组巡回指导。学生：分组操作，注意安全。教师：对各小组评价总结。学生：自评互评。课题小结动系和底盘的维护项目：离合器踏板；方向盘和连杆机构；动力转向液；球节；自动变速器液；手动变速器油/差速器油；车轮轴承；轮胎；润滑脂更换；作业布置在作业本上，用自己的语言复述汽车底盘和传动系统维护项目的方法和维护间隔教学反思通过教学发现，汽车维护虚拟实训软件对学生学习帮助特别大，虚拟实训即解决了学生学习步骤不规范实车实训造成的零部件损坏，又解决了实训耗材不足的问题。由于实训工位有限，即使分组后学生在实车实训的时间仍然有限。文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 ZS2X5K9I6H3文档编码:CS2W4X9F5Q7 HG9B2F6G2G1 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