发明名称 |
COORDINATION OF VARIABLE CAM TIMING AND VARIABLE DISPLACEMENT ENGINE SYSTEMS |
摘要 |
A method of controlling an engine with a first group of cylinders having selectively deactivatable cylinders valves and a variable camshaft timing actuator coupled in a hydraulic system is described. In one example, the method includes during a first mode where the first group of cylinders is activated to carry out combustion cycles, adjusting the hydraulic system with a first gain based on cam timing feedback information and/or maintaining a null position of the actuator by adjusting a control signal to the hydraulic system to within a first value range. During a second mode where the first group of cylinders is deactivated, the method includes adjusting the hydraulic system with a second gain based on cam timing feedback information, the second gain higher than the first gain and/or maintaining the null position of the actuator by adjusting the control signal to the hydraulic system to within a second value range.
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申请公布号 |
US2010280739(A1) |
申请公布日期 |
2010.11.04 |
申请号 |
US20090434377 |
申请日期 |
2009.05.01 |
申请人 |
FORD GLOBAL TECHNOLOGIES, LLC |
发明人 |
ROLLINGER JOHN ERIC;DOERING JEFFREY ALLEN |
分类号 |
F02D43/00;F01L1/34;F02D17/02 |
主分类号 |
F02D43/00 |
代理机构 |
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