| 发明名称 |
METHOD FOR DIAGNOSING A VACUUM ACTUATOR |
| 摘要 |
Methods and systems are described for diagnosing degradation of a vacuum actuator in an engine system. An example method comprises indicating degradation of the vacuum actuator based on an estimate of flow of air into and out of a vacuum reservoir. The estimate is further based on flow of air generated via each of an aspirator in the intake system, an actuation of the vacuum actuator, and leakage during the actuation of the vacuum actuator. |
| 申请公布号 |
US2016131066(A1) |
申请公布日期 |
2016.05.12 |
| 申请号 |
US201414535775 |
申请日期 |
2014.11.07 |
| 申请人 |
Ford Global Technologies, LLC |
发明人 |
Martin Douglas Raymond;Fournelle Gilbert |
| 分类号 |
F02D41/22;F02M35/104;F02D9/02;F02M35/10;F02D41/26;F02D41/00 |
主分类号 |
F02D41/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method, comprising:
indicating degradation of a vacuum actuator based on an estimate of flow of air into and out of a vacuum reservoir, the estimate based on flow of air generated via each of an aspirator in an intake system, an actuation of the vacuum actuator, and leakage during the actuation of the vacuum actuator. |
| 地址 |
Dearborn MI US |
