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:
Jan. 23, 2018
Filed:
May. 05, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
Shaochun Ye, Northville, MI (US);
Michael D. Potts, Howell, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A powertrain assembly includes a transmission, an engine, first and second motor/generators and a controller. The controller includes a processor and memory on which is recorded instructions for executing a method for controlling engine pulse torque cancellation commands. The controller is programmed to determine an engine pulse torque (T). The controller is programmed to calculate a first motor torque pulse command (T) for the first motor/generator as a product of a first gear factor (G), the engine pulse torque (T) and a first ratio (I/I) of a predetermined first moment of inertia (I) for the first motor/generator and a predetermined engine moment of inertia (I). Similarly, the controller is programmed to calculate a second motor torque pulse command (T) for the second motor/generator. The controller is programmed to control the first and second motor/generators in response to the first and second motor torque pulse commands, respectively.