发明名称 |
METHOD AND APPARATUS FOR VARIABLE VALVE ACTUATION |
摘要 |
A method for reducing turbolag in a turbocharged internal combustion engine includes demanding torque for shifting the internal combustion engine from a stationary engine mode to a transient engine mode, closing an exhaust gas recirculation (EGR) valve during the transient engine mode, repositioning guide vanes of a Variable Geometry Turbine (VGT) turbo unit from a first position when in the stationary engine mode to a second position when in the transient engine mode, increasing a duration of overlapping of at least one inlet valve and at least one outlet valve provided in a cylinder head of the internal combustion engine from as first duration when in the stationary mode to a second duration when in the transient mode for increasing the amount of air flowing from an inlet manifold to an exhaust manifold and thereby increasing acceleration of a turbine of the VGT turbo unit. |
申请公布号 |
EP2389500(A4) |
申请公布日期 |
2012.12.05 |
申请号 |
EP20090838961 |
申请日期 |
2009.01.22 |
申请人 |
VOLVO LASTVAGNAR AB |
发明人 |
NORDSTRAND, ANDREAS;ZANDER, LENNARTH |
分类号 |
F01L13/00;F02B37/24;F02D43/00;F02M25/07 |
主分类号 |
F01L13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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