The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2026
Filed:
Oct. 02, 2024
GM Global Technology Operations Llc, Detroit, MI (US);
Mark Claywell, Birmingham, MI (US);
Azeem Sarwar, Rochester Hills, MI (US);
Maqsood Rizwan Ali Khan, Troy, MI (US);
Lei Wang, Rochester Hills, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A control signal is issued to a turbo shaft actuator to rotate a turbine at a first turbine speed in response to an ignition turn on signal. The first turbine speed is different from a default turbine speed. The rotation of the turbine at the default turbine speed results in exhaust gas having a first exhaust gas temperature after the exhaust gas passes through the turbine to a catalyst brick of the vehicle. The rotation of the turbine at the first turbine speed results in the exhaust gas having a second exhaust gas temperature after the exhaust gas passes through the turbine to the catalyst brick. The second exhaust gas temperature is higher than the first exhaust gas temperature. When the catalyst temperature is greater than a catalyst light-off temperature a control signal is issued to the turbo shaft actuator to rotate the turbine at the default speed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile