Measurement of the instantaneous oil-consumption in automotive engine

A method for the measurement of the oil-consumption ratio of an internal-combustion engine in weight-lost way has been advanced, by which an intelligent measurement instrument with the core of microcontroller is designed. This paper introduces the configuration, the measurement principles of this instrument, measurement circuits and software of the microcontroller. Not only can it measure the average oil-consumption ratio of an internal-combustion engine, but also measure the value instantaneously. With the interfaces of printer and serial communication attached, it can also print out the experimental data and curves and communicate with other computers. With full-function, high measurement accuracy and convenience in use, it can be applied to measurement of the oil-consumption ratio of the diesel engine and the gasoline engine. As a result, the efficiency of oil-consumed internal-combustion experiment is greatly improved.