发明名称 |
SHUT-OFF VALVE FAULT DIAGNOSIS DEVICE AND FUEL SUPPLY SYSTEM |
摘要 |
<p>Provided is a shut-off valve fault diagnosis device that performs fault diagnosis of a first shut-off valve (41) that is disposed immediately after a gaseous fuel tank and a second shut-off valve (42) that is disposed immediately before a regulator (43) in a gaseous fuel supply system (3). The shut-off valve fault diagnosis device includes a diagnosis processing unit (67) that performs a valve-shutting control of the first shut-off valve (41), performs a valve-shutting control of the second shut-off valve (42) after a predetermined time has passed since the valve-shutting control of the first shut-off valve (41), and performs fault diagnosis of the first shut-off valve (41) and the second shut-off valve (42) based on a variation tendency in a fuel pressure between the first shut-off valve (41) and the second shut-off valve (42) after performing the valve-shutting control of the second shut-off valve (42).</p> |
申请公布号 |
EP2549092(A4) |
申请公布日期 |
2014.01.15 |
申请号 |
EP20110755947 |
申请日期 |
2011.01.06 |
申请人 |
KEIHIN CORPORATION |
发明人 |
SAITO YOSHIO;SHIMATSU TAKAYUKI |
分类号 |
F02M21/02;F02D19/02;F02D19/06 |
主分类号 |
F02M21/02 |
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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