基于双流量传感器的汽车油耗检测系统设计  

Design of Automobile Fuel Consumption Detector Based on Double Flow Sensors

作　　者：闫奇瑾[1] 张春富[1] 

机构地区：[1]盐城工学院电气工程学院,江苏盐城224051

出　　处：《仪表技术与传感器》2012年第12期153-155,共3页Instrument Technique and Sensor

摘　　要：提出了基于双流量传感器的汽车油耗检测系统设计方案,系统以精简型单片机AT89C2051为核心,采用双通道A/D转换器对双油路结构发动机的输油与回油流量进行实时同步检测,进而计算出油耗参数;系统采用CAN总线实现检测结果的通信传输,通信模块由串行接口的控制器MCP2510及驱动器MCP2551构成;为提高系统的抗电磁干扰能力,系统采用MAX813设计了看门狗电路;精度分析结果表明,系统具有较高的检测精度。A new design scheme of automobile fuel consumption detecting system is introduced based on two separated flow sensors. The system takes the compact microcomputer AT89C2051 as controlling core, a 2 -channel analog-to-digital converter to monitor the transfer oil and return oil simultaneously, and then calculates the fuel consumption parameters. The system adopts CAN - bus to communicate and transfer the detected results, the CAN - bus module is realized with controller MCP2510 and transceiver MCP2551. The system also contains watch-dog circuit by MAX813 to anti interference. And analyzes show it has higher precision compare to the traditional detecting ways.

关 键 词：油耗检测 单片机 CAN总线 流量传感器 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]