发明名称 |
METHODS AND SYSTEM FOR DETERMINING COMPRESSOR RECIRCULATION VALVE SLUDGE |
摘要 |
Systems and methods for determining the presence or absence of deposits that may accumulate within a compressor recirculation valve positioned in parallel with a turbocharger compressor are presented. The systems and methods adjust actuators to maintain engine operation such that it may be more difficult for a driver to become aware that a compressor recirculation valve diagnostic is being executed. |
申请公布号 |
US2016169092(A1) |
申请公布日期 |
2016.06.16 |
申请号 |
US201414566442 |
申请日期 |
2014.12.10 |
申请人 |
Ford Global Technologies, LLC |
发明人 |
Ossareh Hamid-Reza;Xiao Baitao;Banker Adam Nathan |
分类号 |
F02B37/18 |
主分类号 |
F02B37/18 |
代理机构 |
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代理人 |
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主权项 |
1. A diagnostic method, comprising:
partially opening a waste gate and adjusting a compressor recirculation valve to a closed position in response to a diagnostic request; incrementally opening the compressor recirculation valve after the compressor recirculation valve is closed; adjusting a compressor recirculation valve airflow offset in response to waste gate position while incrementally opening the compressor recirculation valve from the closed position; and operating the compressor recirculation valve in response to the airflow offset. |
地址 |
Dearborn MI US |