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. 14, 2021
Filed:
Feb. 22, 2019
GM Global Technology Operations Llc, Detroit, MI (US);
Shawn H. Swales, Canton, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A powertrain and an electro-mechanical drive unit includes a first electric machine and a second electric machine each operable as a motor to produce motor torque or as a generator to produce energy. The first and second electric machines are in electrical communication with each other. The electro-mechanical drive unit further includes a hydrodynamic coupling apparatus configured to transfer engine torque. The hydrodynamic coupling apparatus includes an impeller and a turbine fluidly connected to the impeller. The hydrodynamic coupling apparatus is coupled to one of the first and second electric machines to combine the engine torque transferred via the hydrodynamic coupling apparatus with the motor torque produced by the first and/or second electric machines when the first and/or second electric machines operate as the motor.