Abstract: A method for controlling differences in exhaust gas residual amount for a two cylinder bank engine having at least one turbocharger is presented. In one example, the description includes a method for adjusting valve timing to reduce cylinder exhaust gas residual variation.

Abstract: An internal combustion engine that can be operated in compression ignition mode, comprising a fuel injector (2) for each cylinder; a fuel injection control unit (4) for controlling fuel injection quantity and a piston (5) in each cylinder whose compression action causes a mixture of air and fuel to be ignited. The engine is further provided with inlet and outlet valves (6, 7) and sensors (12–16) for measuring various engine operating parameters, is disclosed. During compression ignition mode, the control unit controls the fuel injector to perform a first fuel injection before, and a second fuel injection after top dead center of the piston stroke during or after a negative valve overlap period. A method for operating the engine and a computer readable storage device (4) having stored therein data representing instructions executable by a computer to implement a compression ignition for an internal combustion engine is also described.

Abstract: A method to control electromechanical valves in an internal combustion engine is presented. Electromechanical valves are controlled to improve the possibility starting an engine.

Abstract: An engine diagnostic system for use with an internal combustion engine coupled to a lean NOx trap with a NOx sensor coupled downstream of the trap. Degradation of the NOx sensor is determined by estimated NOx exiting the trap based on engine out NOx and various other operating conditions. When the difference between the measured NOx and estimated NOx is greater than a predetermined value for a predetermined duration, degradation is indicated.

Abstract: A water-jet propulsion personal watercraft comprises a body including a hull and a deck covering the deck from above, a water jet pump disposed on a rear portion of the body and configured to propel the watercraft, an engine mounted forward relative to the water jet pump within the body and configured to drive the water jet pump, a propeller shaft configured to connect the engine to the water jet pump, a coupling mechanism disposed behind the engine and configured to connect an output shaft of the engine to the propeller shaft, and an air cleaner box disposed behind the engine and above the coupling mechanism within the body and configured to take in air for the engine from outside.

Abstract: A system and method to control engine valve timing to improve air-fuel control in an engine with valves that may be deactivated. Valves that may be deactivated are controlled in a manner to improve detection of individual cylinder air-fuel ratios.

Abstract: In a computing device configured to be connected to a wireless network, a method of projecting an image via a projection device over the wireless network, is provided, wherein the projection device is connected to the wireless network via an image-rendering device configured to receive data over the wireless network. The method includes detecting the image-rendering device over the wireless network, presenting a display identifying the image-rendering device to a user, receiving selection of the image-rendering device by the user and sending data representing the image from the computing device to the image-rendering device over the wireless network for projection by the projection device.