Daimler Ag

Daimler Chrysler Ag

Dietmar Hartmann

Karl Pfahler

Lothar Renner

Claudio Bargheer

Peter Maly

Ina Von Szczepanski

An air supply mechanism for a vehicle seat comprises a control device for driving a fan and a heating element connected downstream of the fan. When the vehicle is unlocked, a vehicle door is opened and/or a folding-top switch is actuated in order to open the folding-top, the control device causes a heating element to be preconditioned. When there is a switching-on signal for the air supply mechanism, the control device ends the preconditioning and switches on the heating element and the fan. The heating element and fan are subsequently regulated by the control device as a function of vehicle speed and external temperature. In this manner, a seat occupant does not experience an initial draft or a delayed switching-on reaction but rather experiences a pleasant warmth even immediately after the air supply mechanism is switched on.

Air supply mechanism for a vehicle seat, and method for the operation thereof

An air supply device for an automotive seat includes an air duct which is arranged at the delivery side of a fan and has at least one air outlet opening provided in the upper region of the seat for supplying the head, shoulder and neck region of a seat occupant with a flow of air. A heating element is arranged in the air duct between the fan and the air outlet opening, and the air supply device has at least one sensor for detecting a parameter value as a function of which the flow of air emerging from the air outlet opening is controlled. In order to provide the air supply device with a flow of air which can be controlled in a more universal manner, the sensor is arranged inside the air duct between the air outlet opening and the heating element.

Air supply device for an automotive seat

The present invention discloses an air supply mechanism for a vehicle seat (), and a method for the operation thereof. The air supply mechanism comprises a control device (), for driving a fan () and a heating element () connected downstream of the fan (). When the air supply mechanism is switched on, the control device () switches on a heating element () and at the same time carries out a starting control of a fan () in such a manner that the fan () starts and is operated at minimum blower speed for a predetermined period of time before the blower speed is raised to a predetermined working point and subsequently the blower speed is regulated as a function of the driving speed. In this manner, a seat occupant does not experience an initial sensation of draft due to a powerful discharge of relatively cold air but rather experiences a pleasant warmth even directly after the mechanism is switched on.

An air supply device for a vehicle seat has an air channel arranged on the pressure side of a blower. The channel comprises at least one air discharge opening provided in the upper region of the seat for supplying the head, shoulder and neck area of an occupant of the seat with an adjustable airflow. A heating element is arranged in the air channel between the blower and the air discharge opening. In order to provide the air supply device with an airflow which feels more comfortable to the occupant of the seat, a grid element is arranged inside the air channel between the air discharge opening and the heating element. As a result, the airflow emerging from the air discharge opening is homogenized and slowed down, and this slowing-down allows more heat to be transferred to the airflow from the heating element.

Air supply device for a vehicle seat

An air supply device is provided for a vehicle seat of an open-top motor vehicle having at least one air outflow opening which is provided in the upper region of the vehicle seat and via which an airstream can be applied to the head area, shoulder area and nape area of the sitting vehicle occupant in order to reduce undesired draft phenomenon. The airstream can be regulated by way of a control device. In order to provide improved comfort for the sitting vehicle occupant when driving with the top open, the airstream is adjusted, when the air supply device is switched on, by way of the control device as a function of an automatically sensed external parameter value or of a predefined value selectable by the sitting vehicle occupant, to an assigned basic value, starting from which the further adjustment of the airstream is carried out as a function of an automatically sensed further parameter value.

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Deckenpfronn, Germany

Dietmar Hartmann