Abstract: Methods and systems for diagnosis and control of an internal combustion engine using vibration data obtained from a vibration sensor mounted on the engine includes filtering vibration data within a predetermined engine combustion time period, where the vibration data is indicative of a vibration of an internal combustion engine, determining a peak cylinder pressure (PCP) of a combustion cycle of the internal combustion engine based on the filtered vibration data, determining a location of peak cylinder pressure (LPP) of the combustion cycle of the internal combustion engine based on the filtered vibration data, where the PCP and the LPP are indicative of a performance characteristic of the combustion cycle, and modifying an ignition timing of the internal combustion engine based on the determined PCP and LPP.

Abstract: An apparatus includes a sensor module, an offset diagnostic module, and a notification module. The sensor module is in operative communication with a cylinder pressure sensor and structured to acquire cylinder pressure data from the cylinder pressure sensor indicative of an actual in-cylinder pressure of a cylinder of an engine. The offset diagnostic module is structured to interpret the cylinder pressure data to determine an offset of the cylinder pressure sensor based on a reference in-cylinder pressure and the actual in-cylinder pressure. The notification module is structured to provide an offset error notification responsive to the offset being greater than a threshold offset.

Abstract: A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Abstract: An apparatus, system, and method are provided for determining a health value of a catalyzed diesel particulate filter using a midbed temperature of the catalyzed diesel particulate filter and a reference temperature.

Abstract: A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Abstract: Methods and apparatus relate to air handling for an internal combustion engine system, particularly utilizing premixed air and fuel. The engine system includes an intake air throttle (IAT) having a position set in response to the engine speed and a variable valve timing module having an intake valve timing set in response to the engine load. The variable valve timing module may be a cam phaser having a position at or between full retard and full advance positions. The engine system may operate in a transient mode or a fuel efficiency mode. The IAT position is adjusted in response to an engine speed error value or set at full throttle. The cam phaser position is adjusted in response to a pressure difference across the IAT, the engine speed, or is set to a limit position.

Abstract: A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Abstract: A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Abstract: A method for machining a casing for a turbo engine is provided, wherein a) at least one blank part for the casing is positioned in a tooling fixture, b) the at least one blank part and/or a tool of a tool machine is mechanically stressed by at least one locally applied force into a predetermined stress status, the tooling fixture maintaining the stress status in the at least one blank part, c) the at least one blank part in the stress state is subjected to a machining process, d) the stress status is released after the completion of the machining process so that the machined part takes on the shape determined by the internal stress without the at least one locally applied force.

Abstract: This disclosure provides system and method that can determine hydraulic start of injection (SOI) in engines using an in-cylinder pressure sensor. The system and method iteratively perform a wavelet transform on a signal based on the pressure information provided by the in-cylinder pressure sensors to determine a detail coefficient corresponding to a frequency band containing frequencies of pressure pulsations excited from a fuel jet injected into the cylinder. Hydraulic SOI is determined at the timing when the amplitude of the determined detail coefficient satisfies a predetermined threshold. The system and method provide diagnostic, control, and/or compensation opportunities for fuel injector operation in high pressure fuel rail engine systems without use of expensive or complex fuel injector components.

Abstract: A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Abstract: A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Abstract: A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Abstract: According to one embodiment, an apparatus is disclosed for diagnosing a condition of a component of an exhaust aftertreatment system in exhaust receiving communication with an internal combustion engine where the exhaust aftertreatment system includes a selective catalytic reduction (SCR) catalyst. The diagnostic module is configured to determine a normalized tailpipe nitrogen-oxide NOx value based on a tailpipe NOx sensor signal and a ratio of an SCR inlet ammonia (NH3) flow rate to an SCR inlet NOx flow rate. The apparatus also includes a component condition module configured to determine a condition of the component based on the normalized tailpipe NOx value.

Abstract: A modular cooling unit particularly useful for an automotive vehicle is configured with a heat exchanger having a tunnel port extending at least part way through the core of the heat exchanger. The case of a cooling fan motor is mounted within the tunnel port, so as to minimize the overall length of the cooling unit.

Abstract: Method for using sensitivity analysis to inform the design and performance of a well test are provided. In one embodiment, a method includes providing a reservoir model of pressure transient behavior and performing a sensitivity analysis to identify an input parameter of the reservoir model that can be estimated from pressure transient test data collected from a well location. This method also includes using the results of the sensitivity analysis to design a pressure transient well test for measuring the identified input parameter. Other methods and systems are also disclosed.

Abstract: A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Abstract: This disclosure provides system and method that can determine hydraulic start of injection (SOI) in engines using an in-cylinder pressure sensor. The system and method determine apparent heat release rate (AHRR) curve data for the cylinder from the pressure information provided by the in-cylinder pressure sensors, and the hydraulic SOI from the derivative of the AHRR curve data. The system and method provide diagnostic, control and/or compensation opportunities for fuel injector operation in high pressure fuel rail engine systems without use of expensive or complex fuel injector components.

Abstract: Methods and systems for diagnosing inadequate performance and/or degradation of one or more components of an aftertreatment system are disclosed, the components including at least an oxidation catalyst that is positioned upstream from an SCR catalyst. A performance degradation analysis of the oxidation catalyst is based on a comparison of measurements received from a first nitrous oxide (NOx) sensor located upstream of the oxidation catalyst and a second NOx sensor located downstream from the oxidation catalyst.