汽车胎压设定探究和手机App实践

Research on Tire Pressure Setting and Mobile App Development

目前国内汽车大多采用间接式胎压监测系统,在侦测到某一轮胎转速与其他轮子差距过大时提醒该轮胎压可能异常,而车辆轮胎压力整体偏高或低没法给出警示。从查理定律出发,对车辆建议胎压、充气时及往年历史气温等数据综合推导,来确定车胎充气的压力设定值和操作频度;并用App Inventor 2开发出相应的手机App。配合车辆已有的间接式胎压监测系统,按App给出的轮胎设定压力值充气,可使汽车胎压波动保持在理想的范围内;不改动车辆,使汽车行驶更安全高效。

At present,most domestic cars use indirect tire pressure monitoring system to remind that the tire pressure may be abnormal when one of the tire’s rotational speed is too difference from that of others.It is impossible to give a warning,that the overall tire pressure of the vehicle is too high or low.Based on Charlie’s law,the recommended tire pressure,inflation time and historical temperature are comprehensively deduced to determine the pressure setting value and operation frequency of tire inflation.We then developed tire pressure setting App using App Inventor 2 software.Cooperate with the existing indirect tire pressure monitoring system of the vehicle and inflate according to the tire set pressure value given by App,so as to keep the tire pressure fluctuation within the ideal range.Do not change the vehicle,so that the vehicle can drive more safely and efficiently.