Patent · US Active

Method of determining torque limit with motor torque and battery power constraints

US7977896B2 · kind B2 · utility

22Cited by

23References

19Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Anthony H. Heap · Ann Arbor, US
Tung-Ming Hsieh · Carmel, US

Key dates

Filing date	Sep 27, 2008
Grant date	Jul 12, 2011
Priority date	—
Expiry date	Jul 3, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S903/947
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method to determine a limit torque associated with an electro-mechanical transmission includes determining electric motor torque constraints and battery power constraints. A limit torque function and a standard form of the limit torque function are determined. The limit torque function and the motor torque constraints and the battery power constraints are transposed to the standard form to determine a limit torque.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.