发明名称 |
Method and apparatus for indicating air filter maintenance is required |
摘要 |
A system and method for indicating required maintenance of an air filter used with an internal combustion engine. The system includes a throttle plate for adjusting an amount of airflow passing into cylinders of the engine. The system includes a throttle plate position sensor and a processor. The processor is responsive to a throttle plate position signal produced by the throttle plate sensor, for determining, as a function of such throttle plate position signal, whether the air filter is in need of maintenance. When a manifold absolute pressure sensor is provided, the processor is responsive to a first reading of such manifold absolute pressure sensor taken at a first time and at a second reading of the manifold absolute pressure sensor taken at a second time, for determining, as a function of a difference between such first and second readings whether the air filter is in need of maintenance.
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申请公布号 |
US7032573(B2) |
申请公布日期 |
2006.04.25 |
申请号 |
US20040831570 |
申请日期 |
2004.04.23 |
申请人 |
FORD GLOBAL TECHNOLOGIES, LLC |
发明人 |
ARDISANA, JOHN BERNARD;MARTIN, DOUGLAS RAYMOND;CULLEN, MICHAEL JOHN;GATES, FREEMAN CARTER |
分类号 |
F02B77/04;B01D46/46;F02D11/10;F02D41/18;F02D41/22;F02M35/024;F02M51/00 |
主分类号 |
F02B77/04 |
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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