Patent ID: 7788906
Filing Date: 2010-09-07
Classification: F01N,F02D,Y02T

Abstract:
1. A method for controlling a fuel processor, the method comprising: i) determining a temperature of an exhaust flow to the fuel processor, the fuel processor including a fuel processor catalyst; ii) determining a concentration of O iii) determining a rate of the exhaust flow; iv) estimating separate temperatures for at least two separate areas within the fuel processor catalyst, the areas being at different location at least with respect to the direction of the exhaust flow, the estimates being based at least in part on a heat transfer coefficient value between the exhaust gas and the fuel processor catalyst; and v) adjusting a fuel flow rate to the fuel processor based on i), ii), iii), iv) and a heat capacity value associated with the fuel processor in order to heat the separate areas of the fuel processor catalyst to a reforming temperature and to subsequently operate the fuel processor rich to produce reformate that releases and reduces NO wherein the fuel processor is positioned with an exhaust line of a diesel engine upstream from the NO