发明授权
- 专利标题： Method and arrangement for diagnosing the open-loop control of the tank-venting valve in combination with the open-loop control of an internal combustion engine
- 专利标题（中）： 用于诊断与内燃机的开环控制组合的油罐阀的开环控制的方法和装置
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申请号： US773564申请日： 1991-11-04
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公开(公告)号： US5243853A公开(公告)日： 1993-09-14
- 发明人: Ulrich Steinbrenner , Helmut Denz , Gunther Plapp , Ulrich Mayer , Wolfgang Wagner , Stephan Hohne
- 申请人： Ulrich Steinbrenner , Helmut Denz , Gunther Plapp , Ulrich Mayer , Wolfgang Wagner , Stephan Hohne
- 申请人地址： DEX Stuttgart
- 专利权人： Robert Bosch GmbH
- 当前专利权人： Robert Bosch GmbH
- 当前专利权人地址： DEX Stuttgart
- 优先权： DEX3914536 19890502
- 主分类号： F02D41/00
- IPC分类号： F02D41/00 ; F02M25/08
摘要：
A method is introduced of checking the drivability of a tank-venting valve (TEV) and of an idle actuator.After actuating the TEV, an additional air/fuel mixture is supplied to the intake region of an internal combustion engine having an air/fuel ratio which can be equal to that at which the engine usually operates (.lambda..sub.0) or greater or less than .lambda..sub.0. Reactions of a .lambda.-control and/or of an idle control can be evaluated in dependence thereon. It is advantageous that a check is made independently of how intense the additional air/fuel mixture is enriched with fuel.
公开/授权文献
- US5789948A Sense amplifier 公开/授权日：1998-08-04
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