基于单片机的汽车油门防误踩系统研究报告书

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1、基于单片机的汽车油门防误踩系统研究报告设计者：唐洋、田恬、陈鹏、潘迪指导老师：王起明学院：机电工程学院31摘要本文介绍了基于AT89S52单片机控制防止误踩汽车油门的系统的设计。利用角速度传感器、超声波距离传感器、LCD1602液晶显示屏、继电器控制电路、AT89S52单片机等组成此设计的硬件部分。角速度传感器和超声波距离传感器将采集到的角速度数据和距离数据传送给AT89S52单片机，单片机再对接收到的数据进行处理和判断，将处理的结果传送LCD1602液晶显示屏上显示，并且控制外围器件，电子油门开关和汽车刹车部分，同时通过声光报警进行警示，实现

2、此设计的完全功能。关键词：数据采集系统；角速度；距离；AT89S2；汽车31目录摘要·······························································2第一章绪论·······················································41.1课题的背景·················································41.2研究意义···········································

3、········41.3国内外研究现状·············································4第二章关键技术···················································62.1汽车安全状态的确定·········································62.2车前障碍物信息的获取·······································6312.3误踩油门判定方法·······························

4、············62.3.1误踩油门踏板角速度信息的检测和判断···················72.3.2前方障碍物距离的检测和判断··························7第三章系统总体方案设计··········································93.1系统总体方案··············································93.2系统运转流程图············································9第四章系统的分模块设

5、计·········································114.1系统硬件设计·············································114.2电源电路设计·············································11314.3角速度传感器模块·········································124.4超声波距离传感器模块·····································134.5AT89S52单

6、片机模块·······································154.6显示模块·················································214.7报警模块·················································23第五章调试及性能分析············································25参考文献······················································

7、···27附录·····························································28第一章绪论311.1课题的背景据新闻报道，2013年4月28日上午7时45分，在小区停车场停车入位时，女司机王某误将油门当刹车踩下，将一名老人撞死；2012年5月8日20时36分许，肇事司机肖某某驾驶客车，其在采取制动措施时误踩油门，使车辆加速行驶造成交通事故，致4车连撞，包括张丽莉老师在内的5名师生受伤；2012年6月22日下午，肇事司机李培林驾驶机动车操作不当制动时误踩油门，致车辆超速驶入对向非机动车道

8、，与一自行车队相撞，造成４人当场死亡、１人经抢救无效死亡，３人受伤......一系列的因司机误踩油门而发生的交通事故不断给我们敲响警钟！1.2研究意义