Methods and systems for operating an adjustable pre-chamber

The disclosure provides methods and systems for operating an adjustable pre-chamber. Methods and systems are provided for an engine having a pre-chamber ignition system. In one example, a method may include adjusting a valve coupled between a pre-chamber of an engine cylinder and a main chamber of the engine cylinder between a fully open position and a fully closed position based on whether pre-chamber ignition is desired or direct spark ignition is desired. In this way, the engine may be operated with direct spark ignition during conditions when pre-chamber combustion has reduced stability without including additional spark plugs and air injectors. 本公开提供了"用于操作可调整预燃室的方法和系统"。提供了用于具有预燃室点火系统的发动机的方法和系统。在一个示例中，一种方法可以包括：基于是期望预燃室点火还是期望直接火花点火，在全开位置与全闭位置之间调整联接在发动机气缸的预燃室与发动机气缸的主腔室之间的阀。通过这种方式，在当预燃室燃烧降低稳定性的状况期间，发动机可以在不包括附加的火花塞和空气喷射器的情况下以直接火花点火进行操作。