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发明公开
CN110778408A 压缩着火式发动机的控制装置 无效 - 撤回

压缩着火式发动机的控制装置
摘要：
本发明提供一种压缩着火式发动机的控制装置，用于抑制排放性能的降低且实现全缸运行与减缸运行之间的平稳的切换。在具备空气调节部（43）、火花塞（25）及燃料喷射阀（6）的发动机（1）中，对燃烧室（17）的内部形成的混合气点火从而开始压缩着火燃烧。具备在以规定的稀空燃比进行压缩着火燃烧时切换全缸运行与减缸运行的汽缸数控制部（10a）。汽缸数控制部（10a）执行向减缸运行切换的准备控制。在准备控制中进行空气增量处理、燃料增量处理及延迟处理。在规定的空燃比状态下开始减缸运行。
摘要（英）：

A control device for a compression ignition engine is provided for suppressing reduction in emission performance and achieving switch between all-cylinder operation and reduced-cylinder operation. Inan engine provided with an air adjusting part (43), a sparking plug (25) and a fuel injection valve (6), mixed gas formed in a combustion chamber (17) is ignited so as to start compression ignition combustion. The control device is provided with a cylinder count control module (10a) which changes between all-cylinder and reduced-cylinder operations when the compression ignition combustion is performed at a given lean air-fuel ratio. The cylinder count control module (10a) executes a preparation control to change to the reduced-cylinder operation. In the preparation control, air amount increaseprocessing, fuel amount increase processing, and retard processing are performed. When it is determined that an air-fuel ratio is in a given air-fuel ratio state, the reduced-cylinder operation is started.

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