发明授权
- 专利标题： Method for the diagnosis of a continuous-action lambda probe
- 专利标题（中）： 用于诊断连续作用的λ探针的方法
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申请号： US09408681申请日： 1999-09-30
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公开(公告)号： US06287453B1公开(公告)日： 2001-09-11
- 发明人: Gerd Rösel , Hong Zhang
- 申请人： Gerd Rösel , Hong Zhang
- 优先权： DE19844994 19980930
- 主分类号： F02D4114
- IPC分类号： F02D4114
摘要：
Periodic forced stimulations are asserted on setpoint values for a lambda control and a system response of a lambda control loop is simulated by a model that includes a sensor delay time as the model parameter. Amplitude gains of the model and the system are compared with each other and adapted according to the result of the comparison of the model parameters. If the adaptation value lies above a threshold, a lambda probe is classified as defective.
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