Patent ID: 9388749
Filing Date: 2016-07-12
CPC Classification: F02D,F02M

Claim Text:
1. A method for limiting output of NO x when operating an internal combustion engine in dynamically varying conditions while injecting a primary fuel and a combustible, hydrogen-containing gaseous product, comprising: injecting into the engine the combustible, hydrogen-containing gaseous product while injecting a liquid fuel as the primary fuel into the engine and, while injecting the gaseous product, continually monitoring output signal magnitudes from a first sensor representative of a first variable relating to operation of the engine; based on the monitored first sensor output signal magnitudes, deriving second signal magnitudes by imparting a shift to each in a plurality of first sensor output signal magnitudes, wherein the second signal magnitudes vary temporally as a function of change in the first sensor output signal magnitudes, and each in a plurality of second signal magnitudes is different than a first sensor output signal magnitude from which it is derived; and adjusting one or more engine parameters based in part on the second signal magnitudes.