Abstract: A method for operating an internal combustion engine comprising an exhaust gas cleaning system that includes a SCR catalyst. In conjunction with a cold start and/or a warm-up of the internal combustion engine, the internal combustion engine is operated using a cold start engine operation method having predefineable values for predefineable operating parameters of the internal combustion engine. An amount of nitrogen oxides stored in the SCR catalyst is estimated, and the cold start engine operation method is activated when the estimation indicates that the nitrogen oxide storage amount exceeds a predefineable nitrogen oxide storage amount limit value.
Type:
Application
Filed:
January 26, 2010
Publication date:
January 5, 2012
Applicant:
Daimler AG
Inventors:
Thomas Koch, Alexander Massner, Anke Traebert
Abstract: The invention relates to a computer-based diagnostic tester which can exchange information with the control devices installed in the motor vehicle using a diagnostic program via a diagnostic interface and via data lines. A method for improved checking of repairs is also presented with the diagnostic tester. The motor vehicle-mounted control devices have program routines for self-diagnostics of the control devices and are capable of storing identified faults in the form of fault codes in reserved memory areas. The diagnostic program which is implemented in the diagnostic tester reads the fault codes out from the reserved memory areas, interprets the fault codes and displays them on a display together with the interpretations. In order to check to what extent repairs which have been performed have been successfully concluded, status polling is carried out using the diagnostic program implemented in the diagnostic tester.
Type:
Grant
Filed:
August 23, 2005
Date of Patent:
January 3, 2012
Assignee:
Daimler AG
Inventors:
Bernhard Fink, Peter Irkes, Markus Scholz, Klaus Weiss
Abstract: A control apparatus for a fuel cell stack having an operation control module is provided. The operation control module is configured in terms of programming and circuitry in order to control a large number of sensor or actuator systems that are relevant to normal operation. The sensor or actuator systems relate to the operating state of the fuel cell stack during normal operation and have a safety control module that is designed in terms of programming and circuitry to control safety-relevant sensor or actuator systems. The safety-relevant sensor or actuator systems relate to the safety functions of the fuel cell stack and the safety control module is in the form of an assembly which operates autonomously with respect to the operation control module. A method for controlling the fuel cell stack and the operation control module is also provided.
Abstract: The present disclosure relates to a catalyst including platinum phosphide having a cubic structure, a method of making the catalyst, and a fuel cell utilizing the catalyst. The present disclosure also relates to method of making electrical power utilizing a PEMFC incorporating the catalyst. Also disclosed herein is a catalyst including a platinum complex wherein platinum is complexed with a nonmetal or metalloid. The catalyst with the platinum complex can exhibit good electro-chemically active properties.
Type:
Application
Filed:
March 12, 2010
Publication date:
December 29, 2011
Applicants:
FORD MOTOR COMPANY, DAIMLER AG
Inventors:
Natalia Kremliakova, Scott McDermid, Stephen Campbell
Abstract: A method for detecting objects, wherein two images of a surrounding (1) are taken and a disparity image is determined by means of stereo image processing, wherein a depth map of the surrounding (1) is determined from the determined disparities, wherein a free space delimiting line (2) is identified, delimiting an unobstructed region of the surrounding (1), wherein outside and along the free space delimiting line (1) the depth card is segmented by segments (3) of a suitable width formed by pixels of the same or similar distance to an image plane, wherein a height of each segment (3) is estimated as part of an object (4.1 to 4.6) located outside of the unobstructed region in a way, such that each segment (3) is characterized by the two-dimensional position of the base (for example the distance and angle to the longitudinal axis of the vehicle) and the height thereof.
Abstract: A method to control a powertrain including a transmission, an engine, and an electric machine includes monitoring a rotational speed of the engine, monitoring a temperature of a transmission fluid, determining a maximum hydraulic pressure within a hydraulic control system based upon the rotational speed of the engine and the temperature of the transmission fluid, determining a predicted clutch torque capacity based upon the maximum hydraulic pressure, generating a preferred input torque from the engine based upon the predicted clutch torque capacity, and utilizing the preferred input torque to control the engine.
Type:
Grant
Filed:
October 13, 2008
Date of Patent:
December 20, 2011
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Inventors:
Lawrence A. Kaminsky, Anthony H. Heap, Jy-Jen F. Sah
Abstract: A method for controlling a hybrid powertrain system including an engine selectively operative in one of an all-cylinder state and a cylinder deactivation state based upon power costs includes determining engine power costs for each operating range state of the transmission, determining a system power cost, selecting a preferred cost and corresponding engine operating points, selecting a preferred operating range state, selecting the engine state, and controlling the engine based upon the selected operating range state, the selected engine state, and the engine operating points.
Type:
Grant
Filed:
September 24, 2008
Date of Patent:
December 6, 2011
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Abstract: A method for controlling an electro-mechanical transmission mechanically coupled to first and second electric machines to transmit power to an output member includes determining motor torque constraints and battery power constraints. A preferred output torque to an output member is determined that is achievable within the motor torque constraints, within a range for an additional torque input and based upon the battery power constraints.
Type:
Grant
Filed:
September 26, 2008
Date of Patent:
December 6, 2011
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft