发明名称 |
SYSTEM AND METHOD FOR SELECTIVE CYLINDER DEACTIVATION |
摘要 |
Embodiments for operating an engine with skip fire are provided. In one example, a method comprises during a skip fire mode or during a skip fire mode transition, port injecting a first fuel quantity to a cylinder of an engine, the first fuel quantity based on a first, predicted air charge amount for the cylinder and lean of a desired air-fuel ratio, and direct injecting a second fuel quantity to the cylinder, the second fuel quantity based on the first fuel quantity and a second, calculated air charge amount for the cylinder. |
申请公布号 |
US2016003169(A1) |
申请公布日期 |
2016.01.07 |
申请号 |
US201514602395 |
申请日期 |
2015.01.22 |
申请人 |
Ford Global Technologies, LLC |
发明人 |
Leone Thomas G.;Boyer Brad Alan;Jankovic Mrdjan J. |
分类号 |
F02D17/02;F02D41/30 |
主分类号 |
F02D17/02 |
代理机构 |
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代理人 |
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主权项 |
1. A method, comprising:
operating an engine according to a skip fire schedule, including activating fuel injection to fire at least one cylinder and deactivating fuel injection to skip at least one cylinder, while maintaining spark ignition to all cylinders; and adjusting the skip fire schedule if combustion is detected in a cylinder with deactivated fuel injection. |
地址 |
Dearborn MI US |