Patent ID: 7458417

Claim:
An energy management system in combination with a mobile vehicle, comprising: a chassis and a cab engaged to said chassis; an engine engaged to said chassis and said engine engaged to a transmission for providing motive force to said vehicle; a generator engaged to said engine for providing electricity to an electric system of said vehicle; an engine oil heat exchanger engaged to said chassis for providing cooling to oil circulated to said engine within an engine oil system; said engine oil heat exchanger having an electric fan powered from said electric system of said vehicle; a separate engine coolant system heat exchanger engaged to said chassis for providing cooling to liquid coolant circulated to said engine within an engine coolant system; said engine coolant system heat exchanger having an electric fan powered from said electric system of said vehicle; an HVAC system for providing comfort to said cab; a separate HVAC heat exchanger within said HVAC system to cool air for circulation to said cab; said HVAC heat exchanger having an electric fan powered from said electric system of said vehicle; a turbocharger engaged to said engine; a separate turbocharger heat exchanger engaged to said chassis to cool said turbocharger; and, said turbocharger heat exchanger having an electric fan powered from said electric system of said vehicle; each of said fans respectively associated with each of said heat exchangers being controlled to energize only when the heat load rises to predetermined levels said fans being controlled to sequentially energize to avoid overloading of said generator.