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. 22, 2026
Filed:
Jan. 20, 2023
Ford Global Technologies, Llc, Dearborn, MI (US);
Jogendra Singh Thongam, Windsor, CA;
Baoming Ge, Okemos, MI (US);
Fan Wang, Novi, MI (US);
Papiya Bagchi, Northville, MI (US);
Serdar Hakki Yonak, Ann Arbor, MI (US);
Rimma Paransky, Farmington Hills, MI (US);
FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US);
Abstract
An electric drive system includes a power electronics module with a DC-DC converter and an inverter. The power electronics modules include a plurality of Silicon Carbide switches. Dynamic models are used to estimate the temperatures of the switch junctions and of the Direct Bond Copper substrate. The dynamic models rely on a coolant flowrate value from a coolant system. If the estimate of the substrate temperature differs substantially from a measured substrate temperature, a controller concludes that the coolant system is not delivering the stated flow rate of coolant and takes remedial action such as reducing motor torque to zero.