Patent application number | Description | Published |
20090199616 | SYSTEMS AND METHOD FOR MONITORING UREA LEVEL - A sensor diagnostic system comprises first, second, and third dosing agent sensors and a control module. The first, second, and third dosing agent sensors indicate whether a dosing agent is present at first, second, and third volumetric levels of a dosing agent tank, respectively. The second volumetric level is greater than the first volumetric level and the third volumetric level is greater than the second volumetric level. The control module selectively diagnoses a sensor fault in at least one of the first, second, and third dosing agent sensors based on the indications of the first, second, and third dosing agent sensors. | 08-13-2009 |
20110061363 | EXHAUST DIAGNOSTIC SYSTEMS AND METHODS FOR RESETTING AFTER OPERATION WITH POOR REDUCTANT QUALITY - An exhaust diagnostic system includes a selective catalyst reduction (SCR) efficiency testing module that determines an efficiency of a SCR catalyst. An exhaust gas temperature management module selectively adjusts a temperature of the SCR catalyst to a predetermined temperature range using intrusive exhaust gas temperature management. A test enabling module initiates an SCR efficiency test using the SCR efficiency module after failing a prior SCR efficiency test and while the temperature of the SCR catalyst is within the predetermined temperature range. | 03-17-2011 |
20120023903 | APPARATUS AND METHOD FOR MONITORING REGENERATION FREQUENCY OF A VEHICLE PARTICULATE FILTER - A vehicle includes an engine, a regenerable exhaust stream particulate filter, and a host machine. The host machine has a pair of soot models providing respective actual and modeled soot mass values for the soot contained in the particulate filter, calculates a ratio of a change in the actual and modeled soot masses, and executes a control action when the ratio exceeds a calibrated threshold. A diagnostic code and/or activation of an indicator device may be part of the control action. A system includes the particulate filter and host machine noted above. A method for use aboard the vehicle includes determining the actual and modeled soot mass values using first and second soot models, respectively, calculating a ratio of a change in the actual and modeled soot mass, comparing the ratio to a calibrated threshold, and executing a control action when the ratio exceeds the threshold. | 02-02-2012 |
20120311994 | PARTICULATE FILTER MONITORING METHODS AND SYSTEMS - A method of monitoring regeneration of a particulate filter is provided. The method includes evaluating whether a regeneration event is based on a fixed threshold condition; selectively setting a pass or fail status based on the evaluating; and generating a message indicating the pass or fail status. | 12-13-2012 |
20130263577 | NON-METHANE HYDROCARBON CONVERSION EFFICIENCY DIAGNOSTIC FOR A DIESEL AFTER-TREATMENT SYSTEM - A method of assessing non-methane hydrocarbon (NMHC) conversion efficiency in a diesel after-treatment (AT) system having a diesel oxidation catalyst (DOC) arranged upstream of a diesel particulate filter (DPF) includes regenerating the AT system. Additionally, the method monitors DOC inlet and outlet temperatures during the regeneration. The method also assesses whether the DOC is operating at or above threshold efficiency by determining a DOC inlet/outlet temperature difference and comparing the determined inlet/outlet temperature difference with a threshold inlet/outlet temperature difference. The method also monitors DPF outlet temperature if the DOC is operating at or above the threshold efficiency and determines a DOC temperature/DPF outlet temperature difference. The method additionally assesses whether NMHC conversion efficiency of the DPF is at or above a threshold value by comparing the determined DOC temperature/DPF outlet temperature difference with a threshold DOC temperature/DPF outlet temperature difference. A system and a vehicle are also disclosed. | 10-10-2013 |
Patent application number | Description | Published |
20090075205 | Aqueous developable benzocyclobutene-based polymer composition and method of use of such compositions - The invention is a composition comprising a curable arylcyclobutene based oligomer or polymer and a dissolution inhibitor which comprises a compound comprising at least two diazonaphthoquinone (DNQ) moieties each of which is pendant from different phenyl groups. | 03-19-2009 |
20090275673 | Benzocyclobutene based polymer formulations and methods for processing such formulations in oxidative environments - The use of hindered phenol containing anti-oxidants enable arylcyclobutene-based formulations to be cured in oxygen containing environments such as air without unacceptable degradation in key properties of dielectric constant, water uptake, or transmittance. | 11-05-2009 |
20150266793 | METHODS OF PRODUCING PARA-XYLENE AND TEREPHTHALIC ACID - The present disclosure provides methods to produce para-xylene, toluene, and other compounds from renewable sources (e.g., cellulose, hemicellulose, starch, sugar) and ethylene in the presence of a catalyst. For example, cellulose and/or hemicellulose may be converted into 2,5-dimethylfuran (DMF), which may be converted into para-xylene by cycloaddition of ethylene to DMF. Para-xylene can then be oxidized to form terephthalic acid. | 09-24-2015 |
Patent application number | Description | Published |
20140093190 | Storage Bag With Dimple Features - A storage bag has first and second closure profiles adjacent to an opening to the interior of the bag. The first and second closure profiles are provided with dimples that are aligned opposite to each other. The dimples of the first closure profile are formed as a concave surface on the side of the first closure profile facing the interior of the bag and a convex surface on the side of the first closure profile facing the outside of the bag. The dimples of the second closure profile are formed as a convex surface on the side of the second closure profile facing the interior of the bag and a concave surface on the side of the second closure profile facing the outside of the bag. The dimples of the first closure profile are at least partially within the dimples of the second closure profile when the bag is being sealed. | 04-03-2014 |
20140093192 | Storage Bag With Textured Area On Lips To Facilitate Closing Process - A storage bag has first and second closure profiles that include interlocking members configured to seal an opening of the bag. A textured area is provided on the first closure profile adjacent to the interlocking member and adjacent to an end of the first closure profile. The textured area provides a visual cue to indicate that the process of sealing the interlocking members should begin at the end of the first closure profile and move towards a center of the bag. | 04-03-2014 |
20140093195 | Storage Bag With Features That Facilitate Sealing And Unsealing Of The Bag - A storage bag is provide with features that facilitate unsealing an opening of the bag, including shaped lips and visual cues for areas that the lips that should be grasped during the unsealing process. The visual cue may include relative coloring of portions of the lips of the bag. The storage bag also includes features that facilitate sealing the opening of the bag, including textured areas and dimples. Such features may provide visual cues, tactile feedback and/or audio feedback in order to facilitate the sealing process. | 04-03-2014 |
20140153846 | STORAGE BAG WITH DIMPLE FEATURES - A storage bag has first and second closure profiles adjacent to an opening to the interior of the bag. The first and second closure profiles have dimples that are aligned opposite to each other. By way of example, the dimples of the first closure profile are formed as a concave surface on the side of the first closure profile facing the interior of the bag and a convex surface on the side of the first closure profile facing the outside of the bag. Engaging of the dimples of the first closure profile with the dimples of the second closure profile provides at least one of a visual indication and a tactile sensation, when the interlocking member of the first closure profile is blocked with that of the second. | 06-05-2014 |
20140205214 | STORAGE BAG WITH DIMPLE FEATURES - A storage bag includes a first side surface and a second side surface connected to the first side surface so as to form an interior of the bag with an opening to the interior. First and second closure profiles are connected to respective first and second side surfaces and positioned adjacent to the opening of the bag. Each closure profile includes a respective interlocking member that extends along the length of the respective closure profile and includes a plurality of dimples provided adjacent to the interlocking member. The plurality of dimples provided on the first closure profile are offset from the plurality of dimples provided on the second closure profile. | 07-24-2014 |
20140205215 | STORAGE BAG WITH DIMPLE FEATURES - A storage bag includes a first side surface and a second side surface connected to the first side surface so as to form an interior of the bag with an opening to the interior. First and second closure profiles are connected to respective side surfaces and positioned adjacent to the opening of the bag. Each closure profile includes an interlocking member that extends along the length of the respective closure profile and includes a plurality of dimples provided adjacent to the interlocking member. The plurality of dimples provided on the first closure profile comprise a first shape. The plurality of dimples provided on the second closure profile comprise a second shape. The first shape of the dimples on the first closure profile is dissimilar to the second shape of the dimples on the second closure profile. | 07-24-2014 |