INTEGRATED WIRELESS ONLINE OIL CONDITION AND OIL LEVEL MONITORING SYSTEM FOR I C ENGINE.

The deterioration rate of Lubricating oil in internal combustion engines is strongly depends on the blow by gases, the fuel quality, the ambient conditions and engine parameters like speed, distance travelled Engine temperature etc. In order to avoid an engine's thermal fatigue failure, the oil must be changed in regular intervals i.e. before it loses its protective properties like Viscosity, Total acidic number and total base number, soot concentration and water content etc. At the same time, an unnecessary oil change should be avoided for environmental and economical reasons as still active additives left in the oil may react with the environment and may cause harmful effects. Also in our experimental study, we have tested above said properties of oil after every 1000 km distance travelled and it is proved that engine's lubricating oil losing its protective properties before completion of 3000 km which is reference set by oil manufacturer as oil changed interval. Today, in automotive applications, condition of the engine oil is monitored indirectly by measuring engine's operating parameters and they do not physically measure the condition of lubricating oil in the crankcase. The same system can't tell if the oil is contaminated with coolant or soot, if additive packages are depleted and if it is low. Currently proposed wireless system uses Bluetooth technology which integrates oil condition and its level monitoring which uses temperature sensor, ultrasonic sensor and both the sensors are integrating with oil filling cap. Both the Sensor integrated with oil filling cap is put up in the engine crankcase. Programmable coding language will be developing for effectively analyzing the signals from sensors like oil level in engine crankcase and oil temperature to evaluate oil's viscosity, soot concentration etc. and when different oil properties reaches its deterioration level or oil level falls below optimum level; corresponding indicator will indicates that the oil needs to be replace or fill.