Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Steven Lin0
Adam Richards0
Robert Grant0
John E. Rollinger0
Matthew Gerow0
Date of Patent
January 2, 2024
0Patent Application Number
174431690
Date Filed
July 21, 2021
0Patent Citations
Patent Primary Examiner
Patent abstract
Methods and systems are provided for estimation of a road roughness index (RRI) and adjusting vehicle operation based on the metric. In one example, a method may include estimating the RRI as a function of a pitch energy and a roll energy of the vehicle travelling on the road. In response to the RRI being higher than a threshold, engine operation such as EGR flow rate may be adjusted.
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