发明名称 |
Estimation method |
摘要 |
<p>A direct injection engine is coupled to a vacuum brake booster(130) wherein vacuum created from engine pumping is used to supplement driver braking force. The brake booster (130) is coupled through a check valve (134) to the engine intake manifold (44). A method is disclosed for estimating pressure in the brake booster (130) based on operating conditions. A method is also disclosed for estimating operating parameters based on measured brake booster pressure. Further, a method is disclosed for diagnosing degradation, or monitoring, a brake booster pressure sensor (142) based on operating conditions. In addition, a method is disclosed for diagnosing degradation in other vehicle and engine sensors based on measured brake booster pressure. <IMAGE></p> |
申请公布号 |
EP1114927(A2) |
申请公布日期 |
2001.07.11 |
申请号 |
EP20000311450 |
申请日期 |
2000.12.20 |
申请人 |
FORD GLOBAL TECHNOLOGIES, INC. |
发明人 |
KERNS, JAMES MICHAEL;RUSSELL, JOHN DAVID |
分类号 |
B60T17/02;F02D41/22;(IPC1-7):F02D41/14;F02D41/18 |
主分类号 |
B60T17/02 |
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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