Patent application number | Description | Published |
20140311602 | TURBO PURGE VALVE-CHECK VALVE OBD VACUUM RELIEF - An integrated valve assembly, which integrates two check valves and a solenoid assembly which functions as a purge valve. When the solenoid assembly is in an open position, during a first mode of operation, vacuum pressure places the first check valve in an open position and the second check valve in a closed position, and during a second mode of operation, pressurized air places the first check valve in a closed position, and vacuum pressure generated by a venturi valve member places the second check valve in an open position. Each check valve utilizes a nylon insert along with an over molded rubber seal. The design of the check valves prevents actuation at low vacuums and flows when the vehicle is shut off. The integrated valve assembly eliminates the need for an OBD relief valve, and simplifies the EVAP system, saving costs, complexity, and eliminates several possible leak connections. | 10-23-2014 |
20140326337 | INTEGRATED VALVE ASSEMBLY - A valve assembly for an air flow system, where the air flow system has a turbocharger unit and a venturi valve member for receiving a portion of the pressurized air from the turbocharger unit, and generating back pressure. The valve assembly includes a bypass switching valve and a bypass check valve. During a first mode of operation, the valve assembly is exposed to vacuum pressure, and the bypass check valve is exposed to the vacuum pressure such that the bypass check valve is placed in a closed position. During a second mode of operation the turbocharger unit is activated, pressurized air flows through the bypass switching valve, and places the bypass check valve in an open position, and the back pressure generated by the venturi valve member and the pressurized air from the turbocharger unit creates a pressure differential in the bypass check valve. | 11-06-2014 |
20140345573 | TURBO BYPASS SWITCH VALVE MOUNTING ON AIR BOX - A system which includes a turbo bypass switching valve (BSV) positioned at a beneficial location as a direct mount on an air box to achieve compliance to OBD hose-off requirement via electronic actuation of the BSV and monitoring of the fuel tank pressure sensor for pressure change. When the turbocharger unit is generating pressurized air, the turbo BSV is open, and vapor is passing through the purge valve, some level of vacuum in the fuel tank is sensed. By closing the BSV, flow through the venturi is reduced, producing both less vacuum and a change in fuel tank pressure. The pressure change does not occur if any of the hoses become disconnected. This results in a simple OBD “venture hose off” check without additional components. | 11-27-2014 |
20140345707 | DIRECT MOUNT CANISTER PURGE SOLENOID WITH ADDITIONAL VACUUM PORTS - A valve assembly, such as a canister purge solenoid (CPS) having one or more interchangeable components which may be used to reconfigure the valve assembly to have one or more additional vacuum ports. The design of the valve assembly eliminates the need to mold these ports into the intake manifold, simplifying the design of the manifold, and the tooling needed to make the manifold. The direct mount design of the CPS of the present invention includes at least one additional port to serve as an additional vacuum port to be used for any other purpose, such as a PCV valve, brake booster, or the like. | 11-27-2014 |
20140345709 | MOUNTING CONFIGURATION FOR VALVE ASSEMBLY - A mounting assembly which provides for a rigid connection between a valve assembly, such as a canister purge valve (CPV), and a component in an air flow system of a vehicle, such as an intake manifold, air box, or the like. The mounting assembly includes two brackets that are connected to the CPV, and the brackets are used to connect the CPV to an intake manifold. The first bracket includes an isolator having a slot, and a blade or flange extends into the slot, providing only one way of attachment between the CPV and the intake manifold. The second bracket includes a single bolt through a molded tab providing a second connection. The second bracket also has a second isolator; both isolators are made of rubber or other type of material suitable for isolating vibration. Each isolator provides vibration isolation between the intake manifold and the CPV. | 11-27-2014 |
20150316007 | TANK PRESSURE CONTROL SOLENOID WITH PASSIVE TANK VACUUM - A valve assembly providing flow control between a fuel tank and a carbon canister, which includes two valves providing two different flow paths, where the first valve provides active vacuum relief along the first flow path, and the second valve provides passive vacuum relief along the second flow path. A reservoir is added to the cap which is common for both flow paths. The second valve has a sealing valve member and a biasable member that passively relieves fuel tank vacuum pressure at a predetermined vacuum level. | 11-05-2015 |
20150345652 | LATACHING VALVE ASSEMBLY HAVING POSITION SENSING - A latching valve assembly which controls the flow of air and purge vapor between a fuel module and a carbon canister, where a change in an electrical property of the latching valve assembly is used to detect whether the latching valve is in the open position or the closed position. The latching valve assembly of the present invention eliminates the need for a physical switch solution, mechanical or non contact solutions, eliminates complexity of valve hardware requirements, and only adds minor electric components and software to identify the latch position. This system eliminates valve complexity and mechanical connections required for electrical conductivity. | 12-03-2015 |
Patent application number | Description | Published |
20090048759 | PHASE AND FREQUENCY ERROR BASED ASYMMETRICAL AFR PULSE REFERENCE TRACKING ALGORITHM USING THE PRE-CATALYST O2 SENSOR SWITCHING OUTPUT - A fuel control system of an engine system comprising a pre-catalyst exhaust gas oxygen (EGO) sensor and a control module. The pre-catalyst EGO sensor determines a pre-catalyst EGO signal based on an oxygen concentration of an exhaust gas. The control module determines a dither signal. The control module determines a fuel command based on the pre-catalyst EGO signal and the dither signal. | 02-19-2009 |
20110054744 | SYSTEM AND METHOD FOR DETERMINING ENGINE FRICTION - An engine control system includes a combustion torque determination module, a friction torque determination module, and a control module. The combustion torque determination module determines a combustion torque of an engine based on pressure inside a cylinder of the engine during an engine cycle. The friction torque determination module determines friction torque of the engine based on the combustion torque, acceleration of an engine crankshaft, effective inertia of the engine crankshaft, and a pumping loss in the cylinder during the engine cycle. The control module adjusts an operating parameter of the engine based on the friction torque. | 03-03-2011 |
20110290214 | ENGINE SPEED CONTROL SYSTEMS AND METHODS - An engine control system for an auto-stop/start vehicle, comprising: an actuator control module, a correction determination module, and a spark adjustment module. The actuator control module determines a target spark timing for a first time that is between a second time when engine cranking begins and a third time when a measured engine speed becomes greater than a predetermined engine speed after the second time. The correction determination module determines a spark timing correction for the first time based on a target engine speed and a measured engine speed. The spark adjustment module sets a spark timing for the first time based on the target spark timing and the spark timing correction. | 12-01-2011 |
20110290216 | VEHICLE ROLLBACK CONTROL SYSTEMS AND METHODS - A control system for an auto-stop/start vehicle includes a transmission load module, a target engine speed module, and an actuator control module. The transmission load module determines a load imposed on an engine through a transmission. The target engine speed module selectively determines a target engine speed during an engine startup event based on the load. The actuator control module controls at least one engine actuator based on the target engine speed during the engine startup event. | 12-01-2011 |
20110295474 | TRANSMISSION LOAD PREDICTING SYSTEM FOR A STOP-START SYSTEM AND A HYBRID ELECTRIC VEHICLE - An engine system of a vehicle includes an engine torque module. The engine torque module determines an engine output torque profile including predicted torque outputs based on an accelerator signal and an engine state variable. A load control module determines a dynamic transmission load profile based on the engine output torque profile and an engine speed profile. The dynamic transmission load profile includes transmission loads as a function of engine speed during an auto-start of an engine. A compensation module generates a torque compensation signal based on the dynamic transmission load profile. An actuator module compensates for a change in a transmission load based on the torque compensation signal and during a transition of the engine from a cranking state to an idle state. | 12-01-2011 |
20110295483 | CYLINDER AIR MASS PREDICTION SYSTEMS FOR STOP-START AND HYBRID ELECTRIC VEHICLES - An engine system includes a first module that determines a cylinder of an engine to be in one of M prediction types and generates a distance from intake signal indicating a number of prediction steps the cylinder is away from an intake stroke. M is an integer greater than or equal to 3. A second module determines a cycle type of the cylinder. The cycle type indicates a number of combustion cycles the cylinder has experienced from a last restart of the engine. A cylinder air charge module estimates an air mass within the cylinder based on the distance from intake signal and the cycle type. | 12-01-2011 |
20110295489 | SELECTIVE CYLINDER DISABLEMENT CONTROL SYSTEMS AND METHODS - An engine control system for an auto-stop/start vehicle includes a mode control module and an actuator control module. The mode control module selectively initiates an engine startup event when an engine startup command is generated. The actuator control module cranks an engine during the engine startup event, provides fuel to a first cylinder of the engine while the engine is being cranked, and selectively disables fuel to a second cylinder of the engine while the engine is being cranked. The second cylinder is after the first cylinder in a firing order. | 12-01-2011 |
20110295494 | CONTROLLED ENGINE SHUTDOWN SYSTEM FOR A STOP-START SYSTEM AND A HYBRID ELECTRIC VEHICLE - An engine system includes a stop-start module that generates a shut down signal to shut down an engine. A friction module that generates a friction signal based on the engine shut down signal. The friction signal indicates an estimate of a sum of friction forces between components of the engine. A position module estimates a position of the engine and generates a position signal. An energy module estimates kinetic energy of the engine based on the friction signal and the position signal. A cylinder deactivation module stops the engine based on the kinetic energy in at least one of (i) a predetermined position and (ii) a predetermined range. | 12-01-2011 |
20110295495 | INTAKE MANIFOLD REFILL AND HOLDING CONTROL SYSTEMS AND METHODS - An engine control system for an auto-stop/start vehicle includes an auto-stop/start module and an actuator control module. The auto-stop/start module selectively generates an auto-stop command for shutting down an engine while an ignition is in an ON state. The actuator control module disables fuel to the engine when the auto-stop command is generated and closes a throttle valve to a predetermined throttle opening when the auto-stop command is generated. | 12-01-2011 |
20120010802 | METHOD FOR STARTING AN INTERNAL COMBUSTION ENGINE WITHIN A HYBRID POWERTRAIN - A hybrid powertrain includes an internal combustion engine, an electro-mechanical transmission and an electric machine. In an engine starting routine, flow control devices located proximate each combustion chamber in the engine initially restrict airflow into the cylinders to allow for a starter motor to rotate the engine at lower expansion and compression torque whereafter rotation of the engine is transitioned to the electric machine. | 01-12-2012 |
20120192826 | STARTER CONTROL SYSTEMS AND METHODS FOR ENGINE ROCKBACK - A system for a vehicle, includes a rockback detection module and a starter disabling module. The rockback detection module receives a crankshaft position signal from a bi-directional crankshaft sensor and selectively indicates that a crankshaft of an engine is rotating in a first direction based on the crankshaft position signal. The engine rotates in a second direction that is opposite to the first direction when the engine is running. The starter disabling module disables current to a starter motor when the crankshaft is rotating in the first direction. | 08-02-2012 |
20130304362 | SYSTEM AND METHOD FOR PREVENTING MISFIRE DURING ENGINE STARTUP - A system according to the principles of the present disclosure includes a stop-start module and a throttle control module. The stop-start module stops an engine when a driver depresses a brake pedal while an ignition system is on and the engine is idling. The throttle control module selectively opens a throttle valve when fuel injection in the engine is stopped while the ignition system is on based on engine speed and a manifold pressure within an intake manifold. The stop-start module starts the engine when the driver releases the brake pedal. | 11-14-2013 |
20140129117 | SYSTEM AND METHOD FOR CONTROLLING FUEL INJECTION WHEN AN ENGINE IS AUTOMATICALLY STARTED TO DECREASE AN ENGINE STARTUP PERIOD - A system according to the principles of the present disclosure includes a stop-start module and a fuel control module. The stop-start module stops an engine and thereby interrupts an engine cycle when a driver depresses a brake pedal while an ignition system is on and the engine is idling. The stop-start module restarts the engine when the driver releases the brake pedal. The fuel control module, when the engine is restarted, selectively injects fuel into a cylinder of the engine as the cylinder completes the interrupted engine cycle based on an amount of crankshaft rotation corresponding to a difference between a position of a piston in the cylinder when the piston is stopped and top dead center. | 05-08-2014 |
20160115932 | SYSTEM AND METHOD FOR IMPROVING FUEL ECONOMY AND REDUCING EMISSIONS WHEN A VEHICLE IS DECELERATING - A system according to the principles of the present disclosure includes a fuel control module, a transmission control module, and a starter control module. The fuel control module selectively stops fuel delivery to cylinders of an engine while the engine is coupled to a transmission of a vehicle when an accelerator pedal is not depressed. The transmission control module selectively decouples the engine from the transmission while fuel delivery to the cylinders is stopped. The fuel control module selectively allows the engine to stop while the vehicle is moving by not resuming fuel delivery to the cylinders when the engine is decoupled from the engine. The starter control module controls a starter to automatically restart the engine when the accelerator pedal is depressed after fuel delivery to the cylinders is stopped and the engine is decoupled from the engine. | 04-28-2016 |
Patent application number | Description | Published |
20090025753 | Lithographic Apparatus And Contamination Removal Or Prevention Method - A lithographic apparatus is disclosed having an in situ ozonizer, which is used to produce ozone gas, for example, by UV irradiation of an oxygen-containing gas. The thus produced ozone is dissolved in ultra-pure water by contacting the ozone with the ultra-pure water through a permeable membrane. | 01-29-2009 |
20090027635 | Lithographic Apparatus and Contamination Removal or Prevention Method - An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d). | 01-29-2009 |
20090027636 | Lithographic Apparatus, Reflective Member And A Method of Irradiating The Underside Of A Liquid Supply System - A lithographic apparatus that includes a reflector configured to reflect a cleaning beam of radiation projected through a projection system onto an underside of a liquid retrieval system is disclosed. The construction of the reflector is also disclosed as is a method for irradiating the underside of a liquid supply system for use in cleaning. | 01-29-2009 |
20090284715 | LITHOGRAPHIC APPARATUS AND A METHOD OF OPERATING THE APPARATUS - A lithographic projection apparatus is disclosed which includes a cleaning station. Several embodiments of the cleaning station are disclosed. In an embodiment, measures are taken to avoid contact of a cleaning fluid with the final element of the projection system. In an embodiment, measures are taken to avoid foaming of the cleaning fluid. The use of a thermally isolated island is also disclosed as well as its optimal position. | 11-19-2009 |
20110188013 | LITHOGRAPHIC APPARATUS AND CONTAMINATION REMOVAL OR PREVENTION METHOD - An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d). | 08-04-2011 |
20150055102 | LITHOGRAPHIC APPARATUS AND A METHOD OF OPERATING THE APPARATUS - A lithographic projection apparatus is disclosed which includes a cleaning station. Several embodiments of the cleaning station are disclosed. In an embodiment, measures are taken to avoid contact of a cleaning fluid with the final element of the projection system. In an embodiment, measures are taken to avoid foaming of the cleaning fluid. The use of a thermally isolated island is also disclosed as well as its optimal position. | 02-26-2015 |
20160033875 | LITHOGRAPHIC APPARATUS AND CONTAMINATION REMOVAL OR PREVENTION METHOD - An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d). | 02-04-2016 |