Patent ID: 8973553
Filing Date: 2015-03-10
Classification: F02D,F02M,F02P,Y10T

Abstract:
1. A sensing system for detecting current in an internal combustion engine having at least one cylinder, the sensing system comprising: a fuel injector for injecting fuel into the combustion chamber, the fuel injector being fixedly positioned within the combustion chamber and electrically insulated from an engine body of the internal combustion engine; and a sensing circuit for measuring current, the circuit including a power source for supplying power to the fuel injector, the sensing circuit being configured to identify an electro-magnetic disturbance in the sensing circuit caused by operation of the fuel injector and determine a fuel injector operational status based on the electro-magnetic disturbance, wherein the power source is electrically connected to the fuel injector via a positive terminal, the positive terminal having a preset potential, and wherein the power source is electrically connected to the engine body via a negative terminal.