Engine management system
AssigneeFord Global Technologies, LLC
InventorThomas T. Ma
Life of this patent
Estimating the term…
Abstract
A management system of an engine having a hot operating system (a catalytic converter or fuel vaporiser) and a rapid heating system for the hot operating system includes a clock and means to operate the clock after the engine has stopped where the clock operates to issue a signal indicating the time since the last engine switch off. An estimator is coupled to the clock for estimating the temperature of the hot operating system prior to restarting the engine on the basis of signals from the clock indicating the time since last engine switch off and a heating system controller controls the rapid heating system in dependence upon the estimated temperature of the hot operating system prior to restarting the engine.
Claims4
A management system of an engine having a hot operating system and a rapid heating system for the hot operating system, the management system including a clock, and means to operate the clock after the engine has stopped, the clock operating to issue a signal indicating the time since the last engine switch off, means coupled to the clock for estimating the temperature of the hot operating system prior to restarting the engine on the basis of signals from the clock indicating the time since the last switch off, and means for controlling the rapid heating system in dependence upon the estimated temperature of the hot operating system prior to restarting of the engine.
Dependencies are inferred from the claim text.