发明名称 |
DIAGNOSTIC METHOD AND APPARATUS FOR AN EXHAUST PRESSURE REGULATOR |
摘要 |
<p>A diagnostic method for an exhaust pressure regulator provided in an exhaust system connected to a turbocharged internal combustion engine (120), comprising the steps of demanding engine brake, measuring a back pressure in the exhaust system by a back pressure sensor (130) provided between said exhaust pressure regulator (140) and a turbo unit when demanding engine brake, measuring the boost pressure by a boost pressure sensor (110) provided in the inlet manifold when demanding engine brake, comparing the measured back pressure and the measured boost pressure with stored back pressure and boost pressure values in order to determine whether there is a defective pressure regulator (140) or a defective backpressure sensor (130). The invention also relates to a diagnostic apparatus for an exhaust pressure regulator provided in an exhaust system connected to a turbocharged internal combustion engine.</p> |
申请公布号 |
WO2010068146(A8) |
申请公布日期 |
2010.10.28 |
申请号 |
WO2008SE00696 |
申请日期 |
2008.12.12 |
申请人 |
VOLVO LASTVAGNAR AB;BLIGAERD, PER-AEKE;MIKETA, VINKA;OLSSON, GOERAN |
发明人 |
BLIGAERD, PER-AEKE;MIKETA, VINKA;OLSSON, GOERAN |
分类号 |
F02D9/06;F02D41/22 |
主分类号 |
F02D9/06 |
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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