A New Sensor for Continuous Measurement of Fuel Injection Rate and Quantity During Diesel Engine Operation

Abstract

For further improvement of emissions and performance of diesel engines, it is necessary to improve the control of the injection system. It is particularly desirable to control injection rate, injection quantity and injection timing during each working cycle of a cylinder. In present conventional fuel injection systems [1] the control of injection quantity and timing depends on the mechanical setting of the fuel injection pump. This method, however, lacks control accuracy, since there is no feedback signal that allows to account for system operation variations due to tolerances and wear of the involved mechanical parts.