Valve Control System For Internal Combustion Engines And Method Of Operation Thereof

摘要

A valve control system for an internal combustion engine, the engine having at least one cylinder with at least one intake or exhaust valve and a piston and the valve being operable independently of the rotation of the engine crankshaft. The system is configured to generate a control signal that controls a preconditioning actuation cycle of an actuator prior to a first combustion cycle of the engine, receive a feedback signal relating to an operating condition of the actuator during the preconditioning actuation cycle, and generate a modified control signal that controls a combustion actuation cycle of the actuator, modified with reference to the feedback signal. This recalibration of the valve control signals allows the current operating conditions of the valve train to be taken into account before the first combustion cycle of the engine.

主权项

1. A valve control system for an internal combustion engine, the engine having at least one cylinder with at least one valve and a piston, wherein the valve control system comprises a signal processing arrangement which is configured to:
generate a control signal that controls a pre-conditioning actuation cycle of an actuator arranged to actuate the at least one valve which is carried out prior to a first combustion cycle of the engine; receive a feedback signal relating to an operating condition of the actuator during the pre-conditioning actuation cycle; and generate a modified control signal that controls a combustion actuation cycle of the actuator which is carried out during a combustion cycle of the engine, wherein the modified control signal has been modified by the signal processing arrangement with reference to the feedback signal.