Patent application number | Description | Published |
20130275026 | Common Rail System Fault Diagnostic Using Digital Resonating Filter - A common rail fuel system diagnostic algorithm is executed by an engine control and real time to detect and identify a faulty fuel system component. Rail pressure data is processed through a digital resonating filter having a resonance frequency corresponding to a fault signature. A peak magnitude and phase of the output from the digital resonating filter reveals a degradation level of a fuel injector, and a phase of the output identifies which fuel injector is faulted. | 10-17-2013 |
20130311067 | Direct Injection Gas Engine and Method - The disclosure describes an engine system having liquid and gaseous fuel systems, each of which injects fuel directly into an engine cylinder. A controller monitors and controls engine operation in a normal mode, during which the engine produces rated power, and in a limp-home mode, which is used when an abnormal operating condition of the gaseous fuel system is present. During limp-home mode operation, the engine uses more liquid fuel and less or no gaseous fuel relative to the normal mode, and produces power that is less than rated power. | 11-21-2013 |
20140012484 | SYSTEM AND METHOD FOR FAULT DIAGNOSIS IN FUEL INJECTION SYSTEM - A method for fault diagnosis in a fuel injection system having first and second fuel injectors. The method includes initiating a current flow in the first and second fuel injectors. Further, a rise duration of the current flow to reach a threshold level is measured. The method further includes comparing the rise duration and a preset duration. The fuel injection system is controlled based on the comparison. | 01-09-2014 |
20140074382 | Rail Pressure Control Strategy For Common Rail Fuel System - A common rail fuel system includes a common rail supplied by an inlet metered high pressure pump and fluidly connected to a plurality of zero-leak fuel injectors. An electronic controller controls pressure in the common rail predominantly responsive to a rail pressure error when outside of an overshoot avoidance condition corresponding to the error being less than a first threshold and a time rate of change of the error being greater than a second threshold. Pressure in the common rail is controlled predominantly responsive to the time rate of change of the error during the overshoot avoidance condition. | 03-13-2014 |
20140188372 | DUAL FUEL COMMON RAIL SYSTEM AND METHOD OF TRANSITIONING FROM DIESEL ONLY TO DUAL FUEL METHOD OF OPERATION - A dual fuel common rail system may be operated in a regular mode in which a relatively large charge of gaseous fuel is ignited by compression igniting a relatively small injection quantity of liquid diesel fuel. The dual fuel system may be operated in a single fuel limp home mode in which liquid diesel fuel is injected at higher pressures. When transitioning from the single fuel limp home mode to the dual fuel regular mode, accumulated leaked liquid fuel in the gaseous nozzle chamber of each fuel injector is purged and burned in the respective engine cylinder. | 07-03-2014 |
20140202429 | Compressed Natural Gas Fuel Mass Control System - A system, related method and computer program product are disclosed for controlling fuel mass of CNG received by an engine. The system may comprise a heat exchanger configured to receive CLNG and supply coolant and to output CNG and return coolant, an injector configured to inject CNG into the engine, a gas line between the injector and heat exchanger, a control valve configured to receive return coolant from the heat exchanger and to change the amount of return coolant flowing through control valve, and a controller connected to the control valve. The gas line may be configured to carry CNG from the heat exchanger to the injector. The controller may be configured to maintain a Gas Line Temperature within an operating range by adjusting the amount of return coolant flowing through the control valve based, at least in part, on the Gas Line Temperature and a Target Return Coolant Temperature. | 07-24-2014 |
20140311444 | Dual Fuel Common Rail Transient Pressure Control And Engine Using Same - A compression ignition engine is fueled from common rail fuel injectors that predominately inject natural gas fuel that is compression ignited with a small pilot injection of liquid diesel fuel. Before and after a rapid load loss transient, the liquid and gaseous rail pressures are controlled toward respective pressures based upon engine speed and load. During the transient, the liquid rail pressure is controlled relative to the gas rail pressure in order to maintain the liquid rail pressure greater than the gas pressure during the transient to avoid migration gaseous fuel into the liquid fuel side of the system. | 10-23-2014 |
20140331963 | Dual Fuel Common Rail Transient Pressure Control And Engine Using Same - A compression ignition engine is fueled from common rail fuel injectors that predominately inject natural gas fuel that is compression ignited with a small pilot injection of liquid diesel fuel. Before and after a rapid fueling increase transient, the liquid and gaseous rail pressures are controlled toward respective pressures based upon engine speed and load. During the transient, the liquid rail pressure is controlled toward an elevated liquid pressure in order to cause a surge in the supply of gaseous fuel to the gaseous fuel common rail to proactively satisfy the increased gaseous fuel injection rate while obviating a substantial pressure deficit in the gaseous fuel common rail. | 11-13-2014 |
20140331964 | Dual Fuel Engine Diagnostic System And Method Of Operating Same - A compression ignition engine is fueled from common rail fuel injectors that predominately inject natural gas fuel that is compression ignited with a small pilot injection of liquid diesel fuel. Prior to servicing the engine, a service tool may establish a communication link with an electronic controller that controls operation of the engine. Pressure information for a gaseous fuel common rail and a liquid fuel common rail are displayed with the service tool, when the engine is stopped, in order to determine whether the rails are completely depressurized indicating that it is then o.k. to perform servicing tasks. | 11-13-2014 |
20140333444 | LIQUID NATURAL GAS CRYOGENIC TANK LEAK DETECTION SYSTEM - A method of detecting leakage of a fluid from a tank is disclosed. The method may include determining cumulative commanded fluid consumption of the fluid in the tank over a selected time period, determining an actual change of a volume of the fluid in the tank over the selected time period, and comparing the cumulative commanded fluid consumption to the actual change of volume of the fluid. The method may further include producing a leak warning upon the actual change of volume of the fluid over the selected time period exceeding the cumulative commanded fluid consumption over the selected time period plus a threshold value. | 11-13-2014 |
Patent application number | Description | Published |
20130306029 | Direct Injection Gas Engine and Method - An engine includes an engine having at least one cylinder and a cooling system that circulates coolant. A gaseous fuel system includes a heater and a gaseous fuel injector. Liquefied gaseous fuel is heated by extracting engine heat from the engine coolant and providing it to a stream of liquefied gaseous fuel passing through the heater. Heated gaseous fuel is injected directly into the cylinder. A liquid fuel system having an injector provides liquid fuel directly into the cylinder as ignition source. A sensor measures an outlet coolant temperature from the heater and provides a signal to a controller such that the engine can operate in a normal or in a thermal management mode during which engine heat extracted from the engine coolant is reduced. | 11-21-2013 |
20140116520 | FUEL SYSTEM HAVING DUAL FUEL PRESSURE REGULATOR - A pressure regulator is disclosed for use with a dual fuel engine. The pressure regulator may have a body, a cavity formed in the body, a first inlet port in fluid communication with a first end of the cavity, a first outlet port in fluid communication with the first end of the cavity, and a second inlet port in fluid communication with a second end of the cavity. The pressure regulator may also have a valve element movable based on a pressure difference between the first and second inlet ports to any position between a first fully open position at which fluid is allowed to flow from the first inlet port through the first outlet port substantially unrestricted by the valve element, to a second fully restricted position at which fluid flow from the first inlet through the first outlet port is blocked. | 05-01-2014 |
20140116523 | FUEL SYSTEM HAVING DUAL FUEL PRESSURE REGULATOR - A pressure regulator is disclosed having a body, a valve seat dividing a cavity of the body into first and second portions, and an end stop movable against a bias to selectively engage the valve seat and isolate the first and second portions. The pressure regulator may also have a first inlet port in the first portion, a first outlet port in the second portion and in fluid communication with the first portion via the valve seat, and a second inlet port in the second portion. The fuel system may also have a valve element in the second portion and movable against a spring bias based on a pressure difference between an open position and a restricted position against the end stop. The fuel system may additionally have an actuator biased to urge the valve element toward the second position and selectively actuated to move away from the valve element. | 05-01-2014 |
Patent application number | Description | Published |
20100073890 | TORSION SPRING MECHANISM SUPPORTIVE OF A FLEXIBLE PRINTED CIRCUIT - Disclosed is a torsion spring mechanism that supports and guides a flexible printed circuit for use in an electronic device with a sliding motion. The spring mechanism includes a first segment and a second segment that are joined by a torsion spring. The torsion spring has a predetermined spring constant and is capable of exerting a force. When the force of the torsion spring is unreleased the sliding housing is closed and when the force of the torsion spring is released the sliding housing is opened. An electrically conducting flexible printed circuit is at least partially supported by both the first and second segments while freely traversing the torsion spring length with an unsupported portion enough to provide adequate movement of the flexible printed circuit about the torsion spring length. In this way, a spring compartment within the device being approximately 5 millimeters in depth may support and protect the unidirectional torsion spring mechanism and flexible printed circuit. | 03-25-2010 |
20100113100 | Electronic device having a clamshell configuration - An electronic device comprising a first housing and a second wherein, the first and second housings have outward surfaces. One of the outward surfaces includes an electronic display and the other of the outward surfaces includes a keyboard or other input device. A hinge couples the two housing elements together. In a collapsed orientation the outward surfaces of the housing elements are exposed and face away from each other. In a fully deployed orientation, the display and the keyboard are in a side by side orientation. In a partially deployed orientation, the housing containing the display surface is angled away from the housing containing the keypad and the housing containing the keypad acts as a base to hold the angled display open for viewing purposes. | 05-06-2010 |
20100117629 | Detecting three different open ranges in a flip device - A magnetic field sensor, such as a Hall effect sensor, and a corresponding magnetic field producing unit, such as a magnet, can be both positioned near a hinge of a hinged device, such that the magnet, in one part of the device, rotates around the Hall effect sensor, in another part of the device. Three positions can, thereby be detected: (1) when the device is closed and the magnet is “above” the sensor, (2) when the device is partially open and the magnet is “to the side” of the sensor, and (3) when the device is fully open and the magnet is “below” the sensor. The hinged device can have the hinge offset slightly to enable the magnet to rotate around the sensor as described. Alternatively, the locations of the magnet and sensor can be reversed. | 05-13-2010 |
20100154171 | Design and Implementation of Friction Hinge with a Range of Motion and Detent Separation Greater than 180 Degrees - A mobile phone or other electronic device is provided with an improved friction hinge with a radial range of motion greater than 180 degrees and with detents at both ends of travel. The friction hinge can include an asymmetrical cam in conjunction with a single tab on a follower. Advantageously, the electronic device with the improved friction hinge can allows a full 360 degree range of motion with any number of detents at any radial position. | 06-24-2010 |
Patent application number | Description | Published |
20100166404 | Device and Method Using a Touch-Detecting Surface - An image capture device and related method are described. The image capture device includes one or more touch-detecting surfaces for detecting both a first and a second touch. The touch-detecting surfaces can be a touch screen, a touch pad, or a combination of the two. A processor in communication with the one or more touch detecting surfaces controls the execution of an auto-focus operation in response to the first touch and an image capture operation in response to the second touch. | 07-01-2010 |
20100328219 | Method for Integrating an Imager and Flash into a Keypad on a Portable Device - An improved mobile electronic device | 12-30-2010 |
20100328250 | Implementation of Touchpad on Rear Surface of Single-Axis Hinged Device - An improved mobile electronic device | 12-30-2010 |
20110003616 | Detection and Function of Seven Self-Supported Orientations in a Portable Device - An improved mobile electronic device | 01-06-2011 |
20110012921 | Electronic Device and Method for Manipulating Graphic User Interface Elements - An electronic device for manipulating graphical user interface elements has a touch-sensitive display (touch screen) and a touch-sensitive surface (touch pad). The electronic device displays at least two graphical user elements (data icon, program icon, application window, digital photograph, etc.) on the touch screen. A user touches a first element using either the touch screen or the touch pad. This touch user interaction selects the first element and “anchors” it while a user's slide interaction on the other touch-sensitive surface manipulates the second, non-selected element. The slide contact can be interpreted by the electronic device as a drag, push, rotate, or pixel-based move (e.g., zoom in/out) relative to the first element. Various features of the slide movement, such as the speed, the length, the pressure, the direction, and/or the pattern may affect the manipulation of the second element. | 01-20-2011 |
20110012928 | Method for Implementing Zoom Functionality On A Portable Device With Opposing Touch Sensitive Surfaces - An improved mobile electronic device | 01-20-2011 |
20110199718 | Electronic Device Housing with Pivoting and Sliding Portions - An electronic handset device includes a panel pivotally coupled to a base housing portion wherein the panel is pivotal between closed and opened configurations relative to the base housing portion. A movable housing portion is slidably coupled to the panel and is pivotal in unison with the panel. A user interface on the panel is concealed by the movable housing portion when the movable housing portion slides to a closed configuration relative to the panel, and the user interface is exposed when the movable housing portion slides to an opened configuration relative to the panel. | 08-18-2011 |
20130215064 | Method for Manipulating a Plurality of Non-Selected Graphical User Elements - A method for manipulating graphical user interface elements includes displaying a plurality of elements on a touch screen of an electronic device. Based on a first touch screen contact detected on a first side of the electronic device and a slide contact detected on a second side of the electronic device, a first touch screen element is selected and the non-selected touch screen element(s) are manipulated relative to the first element. The slide contact can be interpreted by the electronic device as a drag, push, or rotate relative to the first element. Various features of the slide movement, such as the speed, the length, the pressure, the direction, and/or the pattern may affect the manipulation of the non-selected elements. | 08-22-2013 |
20140239781 | Electronic Device Having a Display and Method of Manufacture - A housing comprises a first housing component with a plurality of dovetail protrusions, at least one dovetail protrusion of the plurality having a first pin hole through a thickness of the protrusion, and a second housing component with a plurality of matching dovetail cuts, at least one dovetail cut containing a second pin hole. The housing further has a plurality of pins. The first housing component is mated in a linear direction with the second housing component with each dovetail protrusion aligned to each dovetail cut. The first housing component and second housing component are pressed together to align the first pin holes axially with the second pin holes, and the pins are inserted axially through each axially aligned first pinhole and second pin hole. | 08-28-2014 |
20140240615 | Electronic Device Having a Display and Method fo Manufacture - A transparent lens and differing plastic material housing is provided that includes a transparent lens including a front surface, a rear surface, and a perimeter edge, the perimeter edge including a flange, a plastic housing affixed to the perimeter edge flange having a different material than the transparent lens, a portion that is tangent to the front surface of the transparent lens; and a portion that is tangent to the rear surface of the transparent lens. | 08-28-2014 |
20140240856 | Electronic Device Having a Display and Method for Manufacture - A method of making a device housing involves providing a transparent lens with a front surface and a rear surface, and a stepped flange along at least a portion of the lens perimeter. The method includes injecting plastic onto the transparent lens perimeter, including the stepped flange, the plastic forming a plastic feature that has a front surface that is tangent to the front surface of the transparent lens, a rear surface that is tangent to the rear surface of the transparent lens, and that extends outward from the sides of the transparent lens away from a device width center line. The plastic feature is molded to the rear surface of the transparent lens at at least one of two ends of the device housing, and the plastic encapsulates a stepped middle surface of the transparent lens flange. A device housing that is made by this method is also included. | 08-28-2014 |
20140240911 | Electronic Device Having a Display and Method of Manufacture - A device housing assembly has a display module including a front pane and a rear pane, the rear pane having a section longer than the front pane in at least one direction. The housing assembly further has a transparent lens and plastic housing, the transparent lens having a front and rear surface; and an adhesive between the front transparent pane and the rear surface of the transparent lens. The housing includes a support structure molded to the rear surface of the transparent lens positioned proximally to the longer section of the rear pane and adjacent to the front pane of glass, the structure providing mechanical support for the rear pane. | 08-28-2014 |
20150042570 | METHOD AND APPARATUS FOR KEYWORD GRAPHIC SELECTION - A method on an electronic device is described. A set of graphics and a set of stored keywords are received in a higher-power mode of operation, each graphic corresponding to one or more of the stored keywords. The higher-power mode of operation is discontinued to enter a lower-power mode of operation. In the lower-power mode: audio signals are listened for; it is detected whether any keywords of the set of stored keywords are present in the audio signals; detected keywords present in the audio signals are stored; a graphic is selected from the set of graphics based on a comparison between the set of detected keywords and the set of stored keywords; a first portion of the selected graphic is displayed, in response to the at least one control signal, on a first area of a touch screen display that is within a first portion of the touch screen display. | 02-12-2015 |
20150042571 | METHOD AND APPARATUS FOR ACTION INDICATION SELECTION - A method on an electronic device is described. A touch screen display of the electronic device is actively controlled in a higher-power mode of operation. The higher-power mode is discontinued to enter a lower-power mode of operation. In the lower-power mode: a first control signal is provided to the touch screen display and a first image is displayed on a first area of the touch screen display; occurrence of a first touch input that corresponds to the first area is determined and in response thereto, a second control signal is provided to the touch screen display and each action icon of a set of action icon is displayed on the touch screen display; occurrence of a second touch input that corresponds to an action icon is determined and in response thereto, an action indication for the current display session is selected and a corresponding selected action is performed. | 02-12-2015 |
20150042572 | METHOD AND APPARATUS FOR USER INTERACTION DATA STORAGE - A method on an electronic device is described. A touch screen display of the electronic device is actively controlled in a higher-power mode of operation. Actively controlling the touch screen display in the higher-power mode is discontinued to enter a lower-power mode of operation. In the lower-power mode: at least one first control signal is provided to the touch screen display; in response to the at least one first control signal, a first portion of the touch screen display is activated and a first portion of a graphic is displayed on a first area of the touch screen display within the first portion; occurrence of a first user interaction that corresponds to the first portion of the graphic during the display of the first portion of the graphic is determined; and user interaction data is stored for the first portion of the graphic based on the first user interaction determination. | 02-12-2015 |