Abstract: Use of a selectively conducting anode component in solid polymer electrolyte fuel cells can reduce the degradation associated with repeated startup and shutdown, but can also adversely affect a cell's tolerance to voltage reversal along with its performance. It was shown that these adverse affects can be mitigated against in certain ways. However, improved results can be obtained by employing a selectively conducting component which comprises a mixed layer of a selectively conducting material and carbon. The mixed layer contacts the side of the anode opposite the solid polymer electrolyte.
Type:
Grant
Filed:
April 28, 2015
Date of Patent:
September 4, 2018
Assignees:
Daimler AG, Ford Motor Company
Inventors:
Francine Berretta, Stephen Lee, Joy Roberts, Stanley Tam, Herwig Haas
Abstract: A grille for a vehicle is disclosed. The grille is configured to be arranged in front of at least one heat exchanger of the vehicle and includes a plurality of grille bars arranged at a distance from one other. A respective portion of each of the plurality of grille bars is airfoil-shaped.
Type:
Grant
Filed:
October 14, 2015
Date of Patent:
August 28, 2018
Assignee:
Daimler AG
Inventors:
Ray Ayala, Dinesh Madugundi, Donald Vena, Rafael Dos Santos, Michael Gatza, Michael Norlin, Ryan Geary, Georgeanna Alemany
Abstract: The invention relates to a method for producing a membrane electrode assembly (12) for a fuel cell, wherein at least one first component (18) of the membrane electrode assembly (12) is provided as part of a continuous material web which passes through a plurality of processing stations. At least one second component (26) of the membrane electrode assembly is connected to the at least one first component. At least one adhesive is applied to at least one of the components (18, 26), said adhesive causing the connection of the at least one first component (18) to the at least one second component (26). Furthermore, the invention relates to a device (10) for producing a membrane electrode assembly (12).
Type:
Application
Filed:
July 23, 2016
Publication date:
August 23, 2018
Applicant:
Daimler AG
Inventors:
Oliver BIHLMAIER, Johannes DEUTSCH, Alexandra FOTIOU, Wolfgang HANSEN, Volker HORINEK, Bettina JANSON, Marco MRAZ, Eyuep Akin OEZDENIZ, Uwe PFISTER, Leoni PRETZEL, Helmut RAUNER, Nico RIEDE, Tim RUECKERT, Dominik SCHUHMACHER, Holger SEIBT, Harald TOBER, Christian WULFF, Karl ZIMMERER
Abstract: A method for the determination of a speed vector for a gesture recognition system in a motor vehicle is disclosed. The method includes detection of movement data by a detection unit, and transmission of the movement data to a processing unit in the form of vectors. A totalling of the vectors to form a total vector occurs using the processing unit, until either the total vector reaches a predetermined minimum length or a predetermined number of vectors is totalled. If the predetermined number of vectors is totalled and the predetermined minimum length of the total vector is not reached, a determination of the speed vector as a zero vector occurs. If the predetermined minimum length of the total vector is reached, a determination of the speed vector occurs by averaging the information contained in the total vector. An accurate and dynamic determination of the speed vector is thereby achieved.
Abstract: A method for starting operation of a solid polymer fuel cell from a temperature below 0° C. is disclosed that prevents certain problems with ice formation as the fuel cell thaws. During startup, the method involves providing the volumetric oxidant flow at a rate less than two thirds of its maximum when the coolant temperature is near 0° C.
Type:
Grant
Filed:
October 13, 2011
Date of Patent:
August 7, 2018
Assignees:
Daimler AG, Ford Motor Company
Inventors:
Elisabeth Funk Woolliams, Richard G. Fellows, Adrian Kent Roett, Laura Iwan, Matthew Blair Guenther, Christopher Richards
Abstract: A column for a motor vehicle body shell structure and a method for producing the same is disclosed. The column includes a column body which has a first material in a first region and a second material in a second region, where the second region is a reinforcement region. The first region is produced by forging and the reinforcement region is formed by a reinforcement insert and/or a reinforcement core and is forged into, reforged in, forged to, or formed on the first region.