发明授权
- 专利标题： Method and system for controlling vacuum
- 专利标题（中）： 控制真空的方法和系统
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申请号： US12899370申请日： 2010-10-06
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公开(公告)号： US08087397B2公开(公告)日： 2012-01-03
- 发明人: Ralph Wayne Cunningham , Amey Y. Karnik
- 申请人： Ralph Wayne Cunningham , Amey Y. Karnik
- 申请人地址： US MI Dearborn
- 专利权人： Ford Global Technologies, LLC
- 当前专利权人： Ford Global Technologies, LLC
- 当前专利权人地址： US MI Dearborn
- 代理机构： Alleman Hall McCoy Russell & Tuttle LLP
- 代理商 Allan J. Lippa
- 主分类号： F02D9/08
- IPC分类号： F02D9/08 ; F02D9/00
摘要：
An engine with a two vacuum sources is disclosed. In one example, a valve position is adjusted in when engine load is low and intake manifold pressure is low to arbitrate vacuum between the two vacuum sources. The approach may increase engine operating efficiency during at least some conditions.
公开/授权文献
- US20110174266A1 METHOD AND SYSTEM FOR CONTROLLING VACUUM 公开/授权日：2011-07-21
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