Electric heating system for an automotive vehicle

Claim 1

IN AN AUTOMOTIVE VEHICLE, A PASSENGER COMPARTMENT, A HEATING SYSTEM INCLUDING A PRIMARY HEATING MEANS, A VENTILATING SYSTEM FOR SUPPLYING THE HEAT OF SAID PRIMARY HEATING MEANS TO SAID PASSENGER COMPARTMENT, AN ELECTRICAL SYSTEM INCLUDING AN ELECTRICAL GENERATOR HAVING A FIELD, AN ELECTRICAL STORAGE BATTERY AND A REGULATOR CONNECTED IN CIRCUIT, SAID REGULATOR NORMALLY LIMITING THE AMOUNT OF ELECTRICAL ENERGY APPLIED TO THE FIELD OF SAID ELECTRICAL GENERATOR, AN ELECTRIC QUICK HEAT MEANS OPERATIVELY PLACED IN SAID VENTILATION SYSTEM TO SUPPLY HEAT TO SAID PASSENGER COMPARTMENT, SAID ELECTRIC QUICK HEAT MEANS COUPLED TO SAID ELECTRICAL GENERATOR, A SENSING MEANS FOR SENSING WHEN SAID PRIMARY HEATING MEANS HAS REACHED A GIVEN OPERATING TEMPERATURE, A RESISTOR, A CONTROL CIRCUIT MEANS FOR REDUCING THE EFFECTIVENESS OF SAID REGULATOR CIRCUIT TO LIMIT THE ELECTRICAL ENERGY APPLIED TO SAID FIELD AND FOR CONNECTING SAID RESISTOR IN SERIES WITH SAID ELECTRICAL GENERATOR AND SAID ELECTRICAL STORAGE BATTERY WHEN SAID SENSING MEANS SENSES A TEMPERATURE BELOW SAID OPERATING TEMPERATURE, SAID RESISTOR HAVING A MAGNITUDE CAPABLE OF SUPPORTING A VOLTAGE DROP DEFINED BY THE DIFFERENCE BETWEEN THE OUTPUT VOLTAGE OF SAID ELECTRICAL GENERATING MEANS AND THE TERMINAL VOLTAGE OF SAID BATTERY WHEN SAID CONTROL CIRCUIT MEANS IS EFFECTIVE FOR REDUCING THE EFFECTIVENESS OF SAID REGULATOR, SAID CONTROL CIRCUIT RETURNING SAID REGULATOR CIRCUIT TO NORMAL OPERATION AND DISCONNECTING SAID RESISTOR FROM SERIES CONNECTION WITH SAID ELECTRICAL GENERATOR AND SAID ELECTRICAL STORAGE BATTERY WHEN A TEMPERATURE EQUAL TO OR GREATER THAN SAID OPERATING TEMPERATURE IS SENSED BY SAID SENSING MEANS, SAID CONTROL CIRCUIT MEANS CONNECTED TO SAID SENSING MEANS TO BE OPERATED BY SAID SENSING MEANS, SAID RESISTOR BEING OPERATIVELY POSITIONED IN SAID VENTILATION SYSTEM AND CONTRIBUTING TO THE HEAT GENERATED BY SAID ELECTRIC QUICK HEAT MEANS WHEN SAID ELECTRIC QUICK HEAT MEANS IS OPERATIVE TO SUPPLY HEAT TO SAID PASSENGER COMPARTMENT.