发明名称 |
Static and dynamic pressure compensation for intake oxygen sensing |
摘要 |
An oxygen sensor pressure compensation system includes a static pressure compensation module to receive an oxygen sensor signal from an oxygen sensor and a pressure signal from a pressure sensor and to perform static pressure compensation. A dynamic pressure compensation module receives the oxygen sensor signal and the pressure signal and to perform dynamic pressure compensation. A summing module generates a compensated oxygen signal based on the static pressure compensation and the dynamic pressure compensation. |
申请公布号 |
US9228524(B2) |
申请公布日期 |
2016.01.05 |
申请号 |
US201313967591 |
申请日期 |
2013.08.15 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
Song B. Jerry |
分类号 |
G01M15/00;F02D41/24;F02D41/14;F02D41/02;G01L19/00 |
主分类号 |
G01M15/00 |
代理机构 |
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代理人 |
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主权项 |
1. An oxygen sensor pressure compensation system, comprising
a static pressure compensation module configured to (i) receive an oxygen sensor signal from an oxygen sensor and a pressure signal from a pressure sensor, (ii) retrieve a correction factor based on the pressure signal, and (iii) apply the correction factor to the oxygen sensor signal to generate a static pressure compensation signal, wherein the static pressure compensation signal corresponds to a static pressure as measured by the pressure sensor; a dynamic pressure compensation module configured to (i) receive the pressure signal, (ii) generate a dynamic pressure compensation signal based on the pressure signal, wherein the dynamic pressure compensation signal corresponds to a change in the pressure signal from a previously received pressure signal; and a summing module to configured to combine the static pressure compensation signal and the dynamic pressure compensation signal to generate a compensated oxygen signal. |
地址 |
Detroit MI US |