[HOFMANN, Harald, ENGL, Bernhard, MENNE, Manfred, HELLER, Thomas, ZIMMERMANN, Werner] Kaiser-Wilhelm-Strasse 100 47161 Duisburg;Persebecker Strasse 30 44224 Dortmund;Fuchsweg 7 44267 Dortmund;Alter Werner Hellweg 153 44803 Bochum;Robert-Koch-Strasse 6 47229 Duisburg;Poststrasse 31 46562 Voerde The invention relates to steel strips or steel sheets exhibiting good cold forming ability and increased stability, comprising a light steel, which contains (in wt. %) C: ≤1.00 %, Mn: 7.00 30.00 %, Al: 1.00 10.00 %, Si: ＞ 2.50 8.00 %, Al + Si: ＞ 3.50 12.00 %, B: ＞ 0.00 - ＜ 0.01 %, and optionally Ni: ＜ 8.00 %, Cu: ＜ 3.00 %, N: ＜ 0.60 %, Nb: ＜ 0.30 %, Ti: ＜ 0.30 %, V: ＜ 0.30 %, P: ＜ 0.01 %, the remainder being iron and unavoidable impurities.

[PFALZGRAF, Manfred, BEDENBECKER, Markus, BOLTZE, Matthias, ENGL, Andreas] Speicherstrasse 3 17033 Neubrandenburg;Schmidschneiderstrasse 22b 82211 Herrsching am Ammersee;Feldstrasse 22 82131 Gauting;Asternstrasse 5 17039 Wulkenzin (OT Neuendorf);Willibaldstrasse 117 80689 München The invention relates to an air conditioner (112) for a motor vehicle (110), comprising a fuel cell (26) and a cooling circuit (116) encompassing a condenser (58). The cooling circuit (116) is operated by means of power produced by the fuel cell (26). Advantageously, the air conditioner (112) is designed to use waste heat from the condenser (58) and/or the fuel cell (26), which is generated by a cooling operation of the air conditioner, for a heating operation. The invention further relates to a method for operating such an air conditioner as well as a motor vehicle comprising such an air conditioner.

[BOLTZE, Matthias, ROZUMEK, Michael, KÄDING, Stefan, PFALZGRAF, Manfred, ENGL, Andreas, BLEEKER, Beate, SÜSSL, Michael, BEDENBECKER, Markus] Kraillinger Strasse 5 82131 Stockdorf;Asternstrasse 5 17039 Wulkenzin (OT Neuendorf);Badstüberstrasse 3 17033 Neubrandenburg;Dorfstrasse 47 17309 Zerrenthin;Schmidschneiderstrasse 22b 82211 Herrsching;Willibaldstrasse 117 80689 München;Waldwisenstrasse 35B 81375 München;Uhdestrasse 23C 81477 München;Feldstrasse 22 82131 Gauting The invention relates to a fuel cell system comprising: a reformer (26) and an afterburner (48), both being used to convert at least fuel and oxidant; and a fuel supply device (10) for providing the reformer (26) and the afterburner (48) with fuel. In a particularly advantageous embodiment, at least one flow controller valve (16, 20) for controlling the fuel supply is connected upstream of the reformer (26) or afterburner (48). The invention also relates to a motor vehicle comprising a fuel cell system of this type.

[BOLTZE, Matthias, ROZUMEK, Michael, KÄDING, Stefan, PFALZGRAF, Manfred, ENGL, Andreas, BLEEKER, Beate, SÜSSL, Michael, BEDENBECKER, Markus] Kraillinger Strasse 5 82131 Stockdorf;Asternstrasse 5 17039 Neuendorf;Badstüberstrasse 3 17033 Neubrandenburg;Dorfstrasse 47 17309 Zerrenthin;Schmidschneiderstrasse 22b 82211 Herrsching;Willibaldstrasse 117 80689 München;Waldwisenstrasse 35B 81375 München;Uhdestrasse 23C 81477 München;Feldstrasse 22 82131 Gauting The invention relates to a fuel cells system (10) which comprises at least one heat-generating component (12 to 32) and at least one component (12, 14, 16) that uses process air. The invention is characterized in that ambient air (34) can be supplied to the heat-generating component, said air being heatable by the heat-generating component (12 to 32), and the air heated in said manner being supplied to the component (12, 14, 16) that uses process air. The invention also relates to a method for influencing the thermal balance of the fuel cell system according to the invention.

[PFALZGRAF, Manfred, BEDENBECKER, Markus, BOLTZE, Matthias, ENGL, Andreas] Speicherstraße 3 17033 Neubrandenburg;Schmidschneiderstrasse 22b 82211 Herrsching am Ammersee;Feldstrasse 22 82131 Gauting;Asternstrasse 5 17039 Wulkenzin (OT Neuendorf);Willibaldstrasse 117 80689 München The invention relates to an air-conditioning system (12) for a motor vehicle (10), having a fuel cell. Here, it is advantageously provided that an air guide (74) of the air-conditioning system (12) is designed to open out via a parcel shelf (76) of the motor vehicle (10) into the vehicle interior space (78). The invention also relates to a motor vehicle having an air-conditioning system of said type.

[PFALZGRAF, Manfred, BEDENBECKER, Markus, BOLTZE, Matthias, ENGL, Andreas] Kraillinger Strasse 5 82131 Stockdorf;Schmidschneiderstrasse 22 82211 Herrsching am Ammersee;Feldstrasse 22 82131 Gauting;Asternstrasse 5 17039 Wulkenzin (OT Neuendorf);Willibaldstrasse 117 80689 München

[PFALZGRAF, Manfred, BEDENBECKER, Markus, BOLTZE, Matthias, ENGL, Andreas] Speicherstrasse 3 17033 Neubrandenburg;Schmidschneiderstrasse 22b 82211 Herrsching am Ammersee;Feldstrasse 22 82131 Gauting;Asternstrasse 5 17039 Wulkenzin (OT Neuendorf);Willibaldstrasse 117 80689 München The invention relates to a method for regenerating a reformer (18) associated with a fuel cell system (14) which is a component of an air conditioner (12) of a motor vehicle (10) driven by a drive unit (94) and supplies electric power to the air conditioner (12). According to the invention, the air conditioner (12) is particularly used for permanently cooling a vehicle interior at a desired temperature TBK when the drive unit (94) is at a standstill, while the vehicle interior is cooled at the maximum cooling capacity and/or at a desired temperature TRK that is smaller than TBK during a period preceding regeneration of the reformer (18). The invention further relates to an air conditioner (12) for a motor vehicle (10).

[PFALZGRAF, Manfred, BEDENBECKER, Markus, BOLTZE, Matthias, ENGL, Andreas] Kraillinger Strasse 5 82131 Stockdorf;Schmidschneiderstrasse 22b 82211 Herrsching am Ammersee;Feldstrasse 22 82131 Gauting;Asternstrasse 5 17039 Wulkenzin (OT Neuendorf);Willibaldstrasse 117 80689 München The invention relates to an air-conditioning system (12) for the engine-independent air-conditioning of a motor vehicle (10), said system comprising a fuel cell system (14) for operating a coolant circuit (16). The invention is characterized in that the air-conditioning system (12) comprises a fault memory (102) in which malfunctions of the air-conditioning system (12) can be saved so that they can be read out for the purpose of maintenance and repair. The invention also relates to a method for controlling said air-conditioning system and to a motor vehicle (10) having said air-conditioning system (12).

[PFALZGRAF, Manfred, BEDENBECKER, Markus, BOLTZE, Matthias, ENGL, Andreas] Kraillinger Strasse 5 82131 Stockdorf;Schmidschneiderstrasse 22 b 82211 Herrsching am Ammersee;Feldstrasse 22 82131 Gauting;Asternstrasse 5 17039 Wulkenzin (OT Neuendorf);Willibaldstrasse 117 80689 München The invention relates to an air-conditioning unit for auxiliary air-conditioning of a motor vehicle, comprising a fuel cell system (14) for operation thereof and an output device (106) for the output of system messages. According to the invention, the output device (106) is an output device (106) outside the motor vehicle. The invention further relates to a motor vehicle comprising such an air-conditioning system

[Harald Hoffmann, Bernhard Engl, Manfred Menne, Thomas Heller, Werner Zimmermann] DE Dortmund A steel strip or sheet steel having good cold formability and high-strength is described, comprising a light steel having (in weight-percent) C: ≦1.00%, Mn: 7.00-30.00%, Al: 1.00-10.00%, Si: ＞2.50-8.00%, Al+Si: ＞3.50-12.00%, B: ＞0.00-＜0.01%, as well as alternately Ni: ＜8.00%, Cu: ＜3.00%, N: ＜0.60%, Nb: ＜0.30%, Ti: ＜0.30%, V: ＜0.30%, P: ＜0.01%, with the remainder iron and unavoidable impurities.