Invention Grant
US08667954B2 Simultaneously firing two cylinders of an even firing camless engine 有权
同时点燃两缸平动发射无凸轮发动机

Simultaneously firing two cylinders of an even firing camless engine
Abstract:
A valve control system includes an engine speed control module that determines an engine speed and a desired engine stop position. A piston position module determines a desired stopping position of a first piston based on the desired engine stop position. A valve control module receives the desired stopping position, commands a set of valves to close at the desired stopping position if the engine speed is less than a predetermined shutdown threshold, and commands the set of valves to reduce the engine speed if the engine speed is greater than the predetermined shutdown threshold.
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