Motor vehicle front part
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorThomas Wolf
Life of this patent
Estimating the term…
Abstract
A motor vehicle front part includes: a heat exchanger; a motorized fan, which is assigned to the heat exchanger; and a two-path cooling air arrangement for controlling the air feed to the heat exchanger. The cooling air arrangement includes: an upper air inlet opening, which opens substantially toward the front; an upper flap arrangement, which corresponds to the upper air inlet opening and is actuated by motor; a lower air inlet opening, which opens substantially toward the bottom; and a lower flap arrangement, which corresponds to the lower air inlet opening and is actuated by motor. The upper air inlet opening and the lower air inlet opening are arranged upstream of the heat exchanger. A lower air outlet is downstream of the heat exchanger in an undertray of the vehicle.
Claims10
A motor vehicle front part comprising:
- a heat exchanger;
- a motorized fan, which is assigned to the heat exchanger;
- and
- a two-path cooling air arrangement for controlling the air feed to the heat exchanger, the cooling air arrangement comprising:
- an upper air inlet opening, which opens substantially toward a front of the motor vehicle front part;
- an upper flap arrangement, which corresponds to the upper air inlet opening and is actuated by a first motor;
- a lower air inlet opening, which opens substantially toward a bottom of the motor vehicle front part;
- and
- a lower flap arrangement, which corresponds to the lower air inlet opening and is actuated by a second motor,
- wherein the upper air inlet opening and the lower air inlet opening are arranged upstream of the heat exchanger,
- wherein a lower air outlet is downstream of the heat exchanger in an undertray of the motor vehicle front part,
- wherein the lower flap arrangement is configured as a louver flap arrangement with a plurality of flap louvers, and
- wherein the flap louvers are inclined in their open position in such a way that an inflowing cooling air flow is directed toward the front.
A method for controlling cooling air of a cooling air arrangement of a motor vehicle
- comprising a motor vehicle front part, the motor vehicle front part comprising:
- a heat exchanger;
- a motorized fan, which is assigned to the heat exchanger;
- the cooling air arrangement for controlling the air feed to the heat exchanger, the cooling air arrangement comprising:
- an upper air inlet opening, which opens substantially toward a front of the motor vehicle;
- an upper flap arrangement, which corresponds to the upper air inlet opening and is actuated by a first motor;
- a lower air inlet opening, which opens substantially toward a bottom of the motor vehicle;
- and
- a lower flap arrangement, which corresponds to the lower air inlet opening and is actuated by a second motor;
- and
- a vehicle speed sensor and a cooling controller for controlling the fan and both the upper flap arrangement and the lower flap arrangement in a manner which is dependent on a required cooling capacity and a vehicle speed,
- wherein the upper air inlet opening and the lower air inlet opening are arranged upstream of the heat exchanger,
- wherein a lower air outlet is downstream of the heat exchanger in an undertray of the vehicle,
- wherein the method comprises:
- transmitting the vehicle speed from the speed sensor to the cooling controller,
- if the vehicle speed lies below a rapid driving limit speed of more than 100 km/h:
- completely closing the upper flap arrangement and opening the lower flap arrangement,
- if the vehicle speed lies above the rapid driving limit speed:
- completely closing the lower flap arrangement and completely opening the upper flap arrangement.
Dependencies are inferred from the claim text.