Heating and cooling apparatus for an electric vehicle
AssigneeValeo Thermique Habitacle
InventorJean Dauvergne
Life of this patent
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Abstract
A motor vehicle has an electric propulsion motor which is cooled in an air radiator by air forced through the latter by a blower. The blower and air radiator are arranged in an air circuit in series with each other. The air circuit is a closed loop which includes the cabin, so that all the air passing through the air radiator comes from the cabin and can be adjustably recycled back into the cabin or exhausted to the outside. The circuit includes two parallel branches, with an auxiliary electric radiator placed in one of these branches downstream of the blower and the air radiator. A mixing valve enables the proportion of the total air flow passing through the branch containing the auxiliary radiator to be adjusted according to the heating requirements in the cabin.
Claims6
A vehicle having a cabin, a propulsion motor, and cooling apparatus for cooling the propulsion motor, in which the cooling apparatus comprises means defining an air circuit, an air radiator for cooling the motor, and a blower for producing an air stream through the said air radiator, the said air radiator and the blower being arranged in the said circuit in series, wherein the said circuit defines a closed loop through the cabin of the vehicle so that the air passing through the said air radiator is drawn entirely from the cabin, the apparatus further including regulating means whereby the air can subsequently be selectively evacuated outside the vehicle and recycled back into the cabin after passing through said radiator, the apparatus also including an auxiliary heat source arranged in the said circuit for operation when the rate of heat transfer from the air radiator is insufficient for heating the cabin.
Dependencies are inferred from the claim text.