Abstract: Methods and systems are provided to heat a catalyst of an after-treatment system for a vehicle. The after-treatment system is powered by a battery. An operational parameter of the battery and the driving mode of the vehicle is determined. After receiving an indication that a first operational parameter threshold has been surpassed and a torque demand of the vehicle has been predicted, heat is provided to the catalyst of the after-treatment system based on the predicted torque demand of the vehicle surpassing a second operational parameter threshold.

Abstract: An embodiment provides A flow straightener, comprising; a conical-shaped portion having a first end and a second end substantially opposite the first end, wherein the first end has a bigger diameter than the second end; and a plurality of liquid directing vanes extending from the conical-shaped portion, wherein each of the plurality of liquid directing vanes are located at a different location on the conical-shaped portion and are oriented parallel to a longitudinal center axis of the conical-shaped portion; and wherein the plurality of liquid directing vanes extend from the conical-shaped portion such that the plurality of liquid directing vanes are located on either an upper half with respect to a horizontal centerline of an end the conical-shaped portion or a lower half with respect to the horizontal centerline of the conical-shaped portion; wherein each of the plurality of liquid directing vanes are shaped having a tapered tail located after the first end of the conical-shaped portion.

Abstract: A diagnostic system for a vehicle includes a difference module, a Fourier module, and a fault module. The difference module determines pressure differences for a camshaft revolution based on differences between: first pressures within first chambers of a camshaft phaser measured during the camshaft revolution, wherein the first pressures within the first chamber control advancement of the camshaft relative to a crankshaft of an engine; and second pressures within second chambers of the camshaft phaser measured during the camshaft revolution, wherein the second pressures within the second chamber control retardation of the camshaft relative to the crankshaft of the engine. The Fourier module performs a Fourier Transform (FT) based on the pressure differences to produce FT data. The fault module, based on the FT data, selectively indicates that a fault is present in a variable valve lift mechanism that is actuated by the camshaft.

Abstract: An integrated air flow component is provided for an internal combustion engine air induction system having an air inlet duct. The integrated air flow component includes an air flow separator in the duct including air flow guidance surfaces downstream of the air cleaner. An engine air duct is also provided.

Abstract: A vacuum source arbitration system is disclosed. In one example, vacuum is supplied to a vacuum reservoir via an ejector during a first condition, and vacuum is supplied to the vacuum reservoir via an engine intake manifold during a second condition. The approach may provide a desired level of vacuum in a reservoir while reducing engine fuel consumption.

Abstract: When a change amount of any one of a demanded torque, a demanded efficiency, and a demanded air-fuel ratio exceeds a predetermined threshold value, an internal combustion engine control apparatus provided by this invention makes a temporary adjustment to a value of any one of a demanded torque, a demanded efficiency and instructed efficiency, and a demanded air-fuel ratio in accordance with a type of demanded engine performance that is currently being given priority among various performances demanded of the internal combustion engine. In the present control apparatus, an actuator for air amount control is operated in accordance with a target air amount calculated based on a demanded torque and a demanded efficiency, an actuator for ignition timing control is operated in accordance with an instructed efficiency, and an actuator for fuel injection amount control is operated in accordance with a demanded air-fuel ratio.

Abstract: In one example, a method is described for operating an engine of a vehicle, the engine having a combustion chamber. The method may include controlling a stability of the vehicle in response to a vehicle acceleration; and adjusting dilution in the combustion chamber of the engine to reduce surge in response to the vehicle acceleration. The dilution may be adjusted by adjusting cam timing, for example.

Abstract: A control for an engine having a variable valve actuation mechanism is provided. A map indicating a correlation among a rotational speed, a gauge pressure of an intake manifold, a lift amount of an intake valve, a phase of the intake valve and an intake air amount of the engine under a reference condition of a predetermined reference atmospheric pressure and a predetermined reference intake air temperature is defined. An intake air amount for the reference condition is determined as a reference intake air amount by referring to the map based on a current rotational speed, a current gauge pressure, a current lift amount and a current phase. The reference intake air amount is corrected with a ratio between an air density under a current condition of a current atmospheric pressure, a current intake air temperature and a current gauge pressure and an air density under the reference condition to calculate an intake air amount for the current condition.

Abstract: When throttle lever is pulled with the rotation lock member of the engine-powered tool in a state in which rotation of rear handle is permitted, the electrode terminal provided on the rotation lock member and the electrode terminal provided on throttle lever contact each other. As a result of this contact, the two output terminals of the engine generator are short-circuited, the supply of electric power to the ignition device from the engine generator is stopped and the supply of electric power from the ignition device to sparkplug in the engine is stopped. Through this, operation of the blade is prevented when rotating rear handle.

Abstract: A method for detection of emissions levels during extended engine speed controlled operation is provided. The method includes monitoring mass airflow passing through the engine while operating the engine. The method further includes adjusting mass airflow responsive to engine speed to maintain a desired engine speed. The method further includes shutting down the engine when engine mass airflow becomes higher than a predetermined mass airflow threshold.

Abstract: A boat propulsion unit controller includes a switch arranged to switch between a long intake duct and a short intake duct for drawing air into an engine of a boat propulsion unit, a motor-operated driver arranged to drive the switch, a duct length switching position sensor arranged to detect the position of the switch at the time of switching the duct length, a fuel supply arranged to supply fuel to the engine, a sensor failure detector arranged to detect failure of the duct length switching position sensor based on its output, and a controller arranged to compensate the fuel supply rate based on the position of the switch detected at the time of duct length switchover. A controller, when the duct length switching position sensor fails, takes the action of switching to the long intake duct and compensates the fuel supply rate using a sensor output quasi value corresponding to the time of switchover to the long intake duct.

Abstract: An exhaust system that processes exhaust generated by an engine has a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates in the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates. Heat generated by combustion of particulates in the heater induces combustion of particulates within the DPF. A control module selectively enables current flow to the electrical heater for an initial period of a DPF regeneration cycle, and limits exhaust flow while the electrical heater is heating to a predetermined soot combustion temperature.

Abstract: A fuel cell system comprising a plurality of fuel cells combined together to form a fuel cell stack, with the fuel cell stack having an anode side with an inlet for a fuel and an outlet for non-consumed fuel and exhaust gases arising at the anode side as well as a cathode side with an inlet for a gaseous oxidising agent such as air and an outlet for exhaust gases which arise at the cathode side, and a compressor having a compressor inlet and a compressor outlet, the compressor outlet of which is connected to the oxidising agent inlet of the fuel cell stack provided at the cathode side, is characterised in that a gas dynamic pressure wave machine having a driven rotor is provided, with an inlet for exhaust gases arising at the cathode side, an inlet for fresh oxidizing agent, an outlet for oxidising agent compressed by the cathode side exhaust gases and also an outlet for the cathode side exhaust gases being associated with the rotor and with the outlet for the oxidising agent compressed by the cathode side ex

Abstract: A boat propulsion unit controller includes a switch arranged to switch between a long intake duct and a short intake duct for drawing air into an engine of a boat propulsion unit, a motor-operated driver arranged to drive the switch, a duct length switching position sensor arranged to detect the position of the switch at the time of switching the duct length, a fuel supply arranged to supply fuel to the engine, a sensor failure detector arranged to detect failure of the duct length switching position sensor based on its output, and a controller arranged to compensate the fuel supply rate based on the position of the switch detected at the time of duct length switchover. A controller, when the duct length switching position sensor fails, takes the action of switching to the long intake duct and compensates the fuel supply rate using a sensor output quasi value corresponding to the time of switchover to the long intake duct.

Abstract: An air intake control apparatus includes a body forming an intake passage for an internal combustion engine, a bore member retained within the body to be movable relative to the body and having a bore being in communication with the body and having an internal peripheral surface forming a portion of the intake passage, at least one shaft body penetrating through the bore member and rotatably provided at the body, at least one valve body fixed to the shaft body so as to adjust an opening degree of the intake passage in the bore member, and a reference portion defining a relative position of the bore member to the shaft body in an axial direction of the shaft body.

Abstract: A method and device is provided for regulating the air-fuel mixture provided to an engine of a stand-by electrical generator during the exercise thereof. The engine is exercised at a predetermined speed less than the normal operating speed of the engine and each cylinder receives an air-fuel mixture having an air component and a fuel component. To exercise the engine, the air component and the fuel component in the air-fuel mixture provided to the engine is reduced. In addition, the volume of the air-fuel mixture provided to each cylinder of the engine is balanced.

Abstract: An excess oxygen reduction system includes a fuel cut-off condition module, an injector module, and a valve module. The fuel cut-off condition module determines whether a fuel cut-off condition exists. The injector module prevents a fuel injector from fueling a cylinder when said fuel cut-off condition exists. The valve module closes an impulse charging valve when said fuel cut-off condition exists.

Abstract: A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pumping air only (i.e., without fuel injection). In addition, the engine control method also provides the following features in combination with the above-described split air/lean mode: idle speed control, sensor diagnostics, air/fuel ratio control, adaptive learning, fuel vapor purging, catalyst temperature estimation, default operation, and exhaust gas and emission control device temperature control. In addition, the engine control method also changes to combusting in all cylinders under preselected operating conditions such as fuel vapor purging, manifold vacuum control, and purging of stored oxidants in an emission control device.

Abstract: The present invention is generally directed towards an air induction system in a motor vehicle. The air induction system comprises an air filter, a clean air duct, a mass air flow sensor housing duct, a mass air flow sensor and a flow conditioning device. The flow conditioning device is disposed inside a mass air flow sensor housing duct. The flow conditioning device is located upstream from the mass air flow sensor. The air flowing through the clean air duct encounters turbulence near the walls of the duct. The flow conditioning device prevents the turbulent air from flowing into the mass air flow sensor.

Abstract: The exchange, removal or addition, as applicable, of media and/or power is provided between the individual shafts of an engine, between individual engines and between the engines and the aircraft. Thus, additional degrees of freedom are provided, enabling engine parameters to be addressed in terms of a reduction or avoidance of negative resonances or beats. It also provides an ability to alter thrust from engines of a multi-engined aircraft to reduce rudder trim.

Abstract: The present invention is generally directed towards an air induction system in a motor vehicle. The air induction system comprises an air filter, a clean air duct, a mass air flow sensor housing duct, a mass air flow sensor and a flow conditioning device. The flow conditioning device is disposed inside a mass air flow sensor housing duct. The flow conditioning device is located upstream from the mass air flow sensor. The air flowing through the clean air duct encounters turbulence near the walls of the duct. The flow conditioning device prevents the turbulent air from flowing into the mass air flow sensor.

Abstract: An apparatus and method for controlling the speed of a vehicle, the apparatus manipulates a cable having one end secured to a throttle and the other secured to a motor for applying a force to the cable. A motor controller provides commands to the motor and the motor controller receives an input in the form of a vehicle velocity setting and in response to the value of the setting setting the motor controller instructs the motor to pull the cable a predetermined distance corresponding to a predetermined throttle position, the predetermined distance is stored in a lookup table and the predetermined throttle position corresponds to a vehicle velocity that is similar to the vehicle velocity setting.

Abstract: Mechanical lash in a cruise control system including a cruise control actuator linked to an engine intake air valve through a cruise cable assembly is automatically measured and stored for use in cruise control operations. The cruise control actuator is driven from a base position along a position schedule while an engine parameter responsive to change in intake air valve position is monitored for any significant parameter change indicating movement of the intake air valve in response to the actuator movement. The amount of actuator movement required before any significant change occurs in the engine parameter is stored as representing the mechanical lash. Cruise control commands are augmented by the learned mechanical lash before being applied to the cruise control actuator.

Abstract: A V-type internal combustion engine in which cylinders each including a cylinder skirt portion projecting into a crankcase are arranged in a V-shape, a governor device is disposed within the crankcase, central axes of the cylinders are offset from each other in an axial direction along a crankshaft supported in the crankcase, and a rotational speed transmission system for transmitting a rotational speed of a governor gear to a governor lever shaft is engages a rearward side of the cylinder skirt portion of a cylinder spaced forward from a rearward most cylinder as viewed among the crankshaft central axis. A single intake manifold is adapted to bridge cylinder heads in a V-bank defined between the cylinders. A carbureter is in fluid communication with the intake manifold. One end of the governor lever shaft is disposed in the V-bank. An intake control for controlling the carbureter in cooperation with one end of the lever shaft is disposed in the vicinity of the carbureter.

Abstract: An intake system for an internal combustion engine comprises a throttling system mounted in an intake pipe between a fuel injection valve and an intake manifold, the throttling system including a stationary valve body fixed in the intake pipe in opposition to the injection valve and a hollow valve body mounted in the intake pipe movably in an axial direction of the intake pipe. The hollow valve body has a downwardly converged inner wall surface surrounding the stationary valve body to define therebetween valve opening of variable opening area. The axial movement of the hollow valve body causes the change in the opening area of the valve opening to control an amount of air-fuel mixture charged therethrough into the engine.

Abstract: An intake system for internal combustion engines comprises a throttling system mounted in an intake pipe between a fuel injection valve and an intake manifold, the throttling system including a stationary valve body fixed in the intake pipe in opposed relation with the injection valve and a hollow valve body mounted in the intake pipe for movement in the axial direction of the intake pipe. The hollow valve body has a downwardly converged inner wall surface surrounding the stationary valve body to define therebetween valve opening of variable opening area. The stationary valve body includes a frusto-conical portion and a cylindrical portion, of which lower edge is in the form of sinusoidal wave to cooperate with the hollow valve body in producing the valve opening of gradually increasing opening area.