Patent application number | Description | Published |
20080281496 | Cam phaser compensation in a hybrid vehicle system - A method of regulating a torque output of an internal combustion engine in a hybrid electric vehicle includes determining whether a cam phaser system of the engine is in one of an inactive state and an active state and monitoring at least one engine operating parameter. An engine torque array is selected from a plurality of engine torque arrays based on the one of the inactive state and the active state. An available engine torque is determined based on the engine torque array and the at least one engine operating parameter and the engine is regulated based on the available engine torque. | 11-13-2008 |
20090145384 | ADAPTER PHASOR CONTROL HOLD DUTY CYCLE SYSTEM FOR AN ENGINE - A camshaft phasor control system for an engine includes a camshaft position sensor that generates a current camshaft position signal based on position of a camshaft. A first comparator generates a camshaft position signal based on the current camshaft position signal and a crankshaft position. The second comparator generates an error signal based on the relative camshaft position signal and a commanded camshaft position signal. A control module determines a current control hold duty cycle (CHDC) for a camshaft phasor based on an engine state parameter. The control module also generates a correction signal based on the error signal, adjusts the current CHDC based on the correction signal to generate a commanded CHDC signal, and generates another CHDC based on the commanded CHDC signal. | 06-11-2009 |
20100107630 | Exhaust temperature and pressure modeling systems and methods - An exhaust control system for a vehicle comprises an exhaust system modeling module and an actuator control module. The exhaust system modeling module estimates an input gas temperature, an output gas temperature, a mass temperature, and a pressure for an exhaust system component of an exhaust system implemented in the vehicle. Exhaust gas flows through the exhaust system component. The actuator control module selectively adjusts an engine operating parameter based on at least one of the input gas temperature, the output gas temperature, the mass temperature, and the pressure. | 05-06-2010 |
20100263627 | EXHAUST GAS RECIRCULATION DIAGNOSTIC FOR COORDINATED TORQUE CONTROL SYSTEMS - A control system includes a throttle control module, an exhaust gas recirculation (EGR) control module, and a diagnostic control module. The throttle control module selectively maintains a desired throttle area when a vehicle is in a coastdown mode. The EGR control module opens an EGR valve when the desired throttle area is maintained. The diagnostic control module selectively diagnoses an error of an EGR system based on a pressure increase measured in an intake manifold of the vehicle when the EGR valve is open. | 10-21-2010 |
20100282192 | METHOD AND SYSTEM FOR CONTROLLING A CAM PHASER - A method and control module includes a control hold duty cycle module generating a control hold duty cycle signal and a voltage correction module generating a voltage correction signal. The control module also includes a correction module generating a corrected proportional correction signal based on a proportional correction signal and the voltage correction signal, and generating a corrected integral correction signal based on an integral correction signal and the voltage correction signal. The control module also includes a force determination module controlling a duty cycle to a phaser operator based upon the control hold signal, the corrected proportional correction signal and the corrected integral correction signal. | 11-11-2010 |
20130073178 | DIAGNOSTIC SYSTEM AND METHOD FOR A VARIABLE VALVE LIFT MECHANISM - A system according to the principles of the present disclosure includes a timing control module and a diagnostic module. The timing control module controls engine valve timing by sending fluid to an advancing chamber of a cam phaser to adjust the cam phaser to an advanced position and by sending fluid to a retarding chamber of the cam phaser to adjust the cam phaser to a retarded position. The diagnostic module identifies a fault in a variable valve lift (VVL) mechanism based on a first difference between an advancing pressure of the advancing chamber and a retarding pressure of the retarding chamber. | 03-21-2013 |
20130226435 | SYSTEMS AND METHODS FOR ADJUSTING AN ESTIMATED FLOW RATE OF EXHAUST GAS PASSING THROUGH AN EXHAUST GAS RECIRCULATION VALVE - A system according to the principles of the present disclosure includes a volumetric efficiency adjustment module and an exhaust gas recirculation (EGR) flow adjustment module. The volumetric efficiency adjustment module adjusts an estimated volumetric efficiency of an engine based on a mass flow rate of air entering the engine. The EGR flow adjustment module selectively adjusts an estimated mass flow rate of exhaust gas passing through an EGR valve based on an amount by which the volumetric efficiency adjustment module adjusts the volumetric efficiency. | 08-29-2013 |
20130268176 | EXHAUST GAS RECIRCULATION CONTROL SYSTEMS AND METHODS FOR LOW ENGINE DELTA PRESSURE CONDITIONS - A partial pressure determination module: determines a first partial pressure of oxygen in an intake manifold of an engine based on an output of a first oxygen sensor measuring oxygen in the intake manifold; and determines a second partial pressure of oxygen in an exhaust system based on an output of a second oxygen sensor measuring oxygen in the exhaust system. A concentration determination module: determines a concentration of oxygen in the intake manifold based on the first partial pressure and an intake manifold; and determines a concentration of oxygen in the exhaust system based on the second partial pressure. A flowrate determination module determines a mass flowrate of exhaust gas recirculation (EGR) based on the concentration of oxygen in the intake manifold and the concentration of oxygen in the exhaust system. An actuator control module controls an engine operating parameter based on the mass flowrate of EGR. | 10-10-2013 |
20140074373 | COORDINATED ENGINE TORQUE CONTROL - A control system for an engine includes a target air per cylinder (APC) module, a target area module, and a phaser scheduling module. The target APC module determines a target APC based on a target spark timing, a target intake cam phaser angle, and a target exhaust cam phaser angle. The target area module determines a target opening of a throttle valve of the engine based on the target spark timing, the target intake cam phaser angle, and the target exhaust cam phaser angle. The target area module controls the throttle valve based on the target opening. The phaser scheduling module determines the target intake and exhaust cam phaser angles based on the target APC. The phaser scheduling module controls intake and exhaust cam phasers of the engine based on the target intake and exhaust cam phaser angles, respectively. | 03-13-2014 |
20140372009 | INTAKE TEMPERATURE CONTROL SYSTEMS AND METHODS FOR INTAKE MANIFOLD PROTECTION - An engine control system of a vehicle includes a first temperature module, a second temperature module, and an exhaust gas recirculation (EGR) control module. The first temperature module determines a temperature of gas within an intake manifold of an engine. The second temperature module determines a temperature of an EGR conduit that is coupled to the intake manifold. The EGR control module reduces opening of an EGR valve when the temperature of the gas and the temperature of the conduit is greater than a predetermined temperature. | 12-18-2014 |
20150354419 | OIL PUMP CONTROL SYSTEMS AND METHODS - A first target module determines a first target output pressure of an engine oil pump based on a speed of the engine oil pump and an oil temperature. A second target module, based on a runtime period of an engine, sets a second target output pressure of the engine oil pump to one of greater than and equal to the first target output pressure. A third target module, based on an engine load, sets a third target output pressure of the engine oil pump to one of greater than and equal to the first target output pressure. A selection module selects one of the second and third target output pressures, sets a selected target output pressure based on the selected one of the second and third target output pressures, and controls displacement of the engine oil pump based on the selected target output pressure. | 12-10-2015 |
Patent application number | Description | Published |
20090011889 | Locking Differential Assembly - An axle assembly with an electric locking differential that can include a one-piece differential case and a locking device. The locking device includes a dog that is nonrotatably but axially slidably received into a pocket that is formed in an end of the differential case. An actuator is mounted on the differential case. Actuation of the actuator moves the dog into engagement with a second dog that is coupled to a side gear of the differential to thereby lock the side gear to the differential case. | 01-08-2009 |
20110006493 | APPARATUS AND METHOD FOR COUPLING A DISCONNECTABLE STABILIZER BAR - A vehicle stabilizer bar assembly having a pair of stabilizer bar members that are selectively uncoupled via a clutch. The clutch includes a moving element that can be selectively moved via an actuator to effect the uncoupling of the stabilizer bar members. The actuator is configured to apply a force to the moving element concentrically about the axis along which the moving element translates. The clutch is configured to transmit torque from one of the stabilizer bar members to the other stabilizer bar member concentrically about the axis. A method for operating a vehicle stabilizer bar assembly is also provided. | 01-13-2011 |
20110046860 | LINEAR ACTUATOR WITH POSITION SENSING SYSTEM - An electromagnetic actuator assembly with a frame, a movable element, first and second sensor targets that are coupled to the movable element for movement therewith, first and second sensors that are coupled to the frame and a controller. The first sensor is configured to sense a position of the first sensor target and to produce a first sensor signal in response thereto. The second sensor is configured to sense a position of the second sensor target and to produce a second sensor signal in response thereto. The controller that receives the first and second sensor signals and identifies three or more discrete points along a path of travel of the plunger. A differential assembly that incorporates the electromagnetic actuator assembly is also provided. | 02-24-2011 |
20110101631 | APPARATUS AND METHOD FOR COUPLING A DISCONNECTABLE STABILIZER BAR - A stabilizer bar system that includes a first stabilizer bar, a second stabilizer bar and a clutch having a clutch housing and a plurality of coupling members housed in the clutch housing. The first stabilizer bar is received in the clutch housing for rotation relative to the clutch housing about a rotational axis. The second stabilizer bar is fixedly coupled to the clutch housing. The coupling members are configured to selectively non-rotatably couple the first stabilizer bar to the clutch housing such that the clutch housing is employed to transmit torque between the first and second stabilizer bars. | 05-05-2011 |
Patent application number | Description | Published |
20090156346 | ELECTRONICALLY ACTUATED APPARATUS USING SOLENOID ACTUATOR WITH INTEGRATED SENSOR - A locking differential assembly with a differential case, a gearset, a first dog, a second dog and a thrust member. The differential case has a mounting hub. The gearset is disposed in the differential case and has a side gear. The first dog is coupled to the side gear. The thrust member is slidably supported on the mounting hub and has projections that extend through apertures in the differential case and engage the second dog. | 06-18-2009 |
20090261931 | ANNULAR SOLENOID WITH AXIALLY OVERLAPPING ELECTROMAGNET AND ARMATURE - An electromagnetic actuator having an annular pole piece and an annular armature with surfaces formed thereon through which a magnetic flux passes. One of the annular pole piece and the annular armature is axially movable relative to the other between a first position, in which the surfaces are spaced axially apart by a minimum distance, and a second position in which the surfaces are spaced axially apart by a maximum distance. The surfaces axially overlap one another but do not touch when the one of the annular pole piece and the annular armature is positioned in the first position and in the second position. | 10-22-2009 |
20090264243 | ANNULAR ACTUATOR HAVING PLUNGER CONFIGURED TO TRANSLATE THROUGH A VISCOUS LIQUID - An actuator having a linear motor and a plunger that is movable by the linear motor along an axis. The plunger includes an annular flange and a rim that is coupled to an outer periphery of the flange. The annular flange is oriented generally perpendicular to the axis. A plurality of apertures is formed through at least one of the flange and the rim. A locking differential and an axle assembly are also provided. | 10-22-2009 |
20100013582 | ELECTRONICALLY ACTUATED APPARATUS USING SOLENOID ACTUATOR WITH INTEGRATED SENSOR - An electromagnetic actuator having an annular pole piece and an annular armature with surfaces formed thereon through which a magnetic flux passes. The armature is axially movable relative to the pole piece between a first position and a second position. Magnetic flux is efficiently transmitted between the pole piece and the armature and the pole piece can be employed to guide the armature for movement thereon. | 01-21-2010 |
20100283566 | ELECTRONICALLY ACTUATED APPARATUS - An electromagnetic actuator having an annular pole piece and an annular armature with surfaces formed thereon through which a magnetic flux passes. The armature is axially movable relative to the pole piece between a first position and a second position. Magnetic flux is efficiently transmitted between the pole piece and the armature and the pole piece can be employed to guide the armature for movement thereon. | 11-11-2010 |