摘要:汽车仪表是驾驶员与汽车进行信息交流的重要接口界面，油量显示作为其中一项 主要的参数，对汽车的安全与经济行驶起着重要的作用。传统的汽车油量检测系统由 滑动变阻器和机械式指针仪表组成，自汽车发明以来就沿用至今，传统机械式油量检 测系统存在的精度差、易损坏的缺点一直未能改进，如今越来越无法满足使用的需要， 随着汽车的电子化、智能化、网络化的发展，特别是计算机和通讯技术的广泛应用， 以嵌入式微处理器为核心的智能化数字式油量表将是汽车仪表发展的必然趋势。

　　　本文提到的基于单片机的汽车燃油检测系统的设计，着重研究单片机的控制原 理，利用单片机高速、可靠、价廉的特点，针对我国目前普遍使用机械式油量检测系 统的现状，寻求一种低成本、高可靠性、采用以嵌入式微处理器为核心的智能数字式 汽车油量检测系统的解决方案，不仅能很好地克服了机械式油量检测系统的无法回避 的缺点，而且具有结构简单、可靠耐用、实时性好、外形美观好等优点。

关键词：单片机，汽车油量检测系统，设计

Abstract:Auto Meter is an important information exchange interface between the driver and the vehicle. The oil show, as one of the major parameters plays an important role of the security and the economic driving. The traditional vehicle fuel detection system consists of sliding rheostat and pointer instrument mechanical. So far, the traditional mechanical vehicle fuel detection is still used from the invention of the automobile. Even though there is a poor precision and easy attaint faults which have been unable to improve. Now it can't satisfy the need to use .With the development of the automobile electronization, intellectualization, and networking, the traditional fuel detection system can not meet the needs  of  growing,  especially in  the  widely  use  of  the  computers  and  communication technology. So, the intelligent digital fuel gauge which is used the embedded microprocessor as the core will be the development trend of automobile

　　　This article mentions the design of vehicle fuel detection system which is based on the single chip and focuses on the measurement and display of the fuel level. On account of the  status  of  the  current  widespread  use  of  the  mechanical  oil  quantity  detection system ,taking advantages of traits of the singlechip, such as high-speed, reliable, and cheap, seeking a low-cost, high reliability, and the solution of the intelligent digital automotive oil quantity detection system which is used the embedded microprocessor as the core ,those are not only overcome inevitable drawbacks of the mechanical oil quantity detection  systems,  but  also  have  many  advantages  such  as a simple  structure,  the credibility and duration ,a real-time, and a good appearance and so forth.

Keyword: Single chip ，vehicle fuel detection system ，design