Internal combustion engine control device
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United States of America Patent
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Jun 9, 2020
Grant Date -
Mar 8, 2018
app pub date -
Mar 1, 2016
filing date -
Mar 4, 2015
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Abstract
An internal combustion engine control device including an oxidation catalyst heating value estimation unit 88A, a NOx catalyst heating value estimation unit 88B, an oxidation catalyst temperature estimation unit 88C, a NOx catalyst temperature estimation unit 88D, and switches 801, 802, 803 that switch between an enabled state in which processing performed by the oxidation catalyst heating value estimation unit 88A and the oxidation catalyst temperature estimation unit 88C is executed and a disabled state in which the processing performed by the oxidation catalyst heating value estimation unit 88A and the oxidation catalyst temperature estimation unit 88C is not executed, wherein the control device is configured to be applied to both an exhaust gas purification system including an NOx-occlusion-reduction-type catalyst and an oxidation catalyst and an exhaust gas purification system including the NOx-occlusion-reduction-type catalyst and not including the oxidation catalyst.
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