Patent · US Active

Method and apparatus for monitoring regenerative operation in a hybrid powertrain system

US8112194B2 · kind B2 · utility

4Cited by

3References

20Claims

0Family size

Assignees

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US
Daimler AG · DE
Chrysler Group LLC · US
Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Hanne Buur · Brighton, US
William R. Cawthorne · Milford, US

Key dates

Filing date	Oct 4, 2008
Grant date	Feb 7, 2012
Priority date	—
Expiry date	Jul 30, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/62
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A hybrid powertrain system includes an engine and a torque actuator coupled to a driveline to transfer tractive power to a wheel including a friction brake. A method includes monitoring an operator braking request and determining a request for regenerative braking torque. Operation of the torque actuator to react tractive power is inhibited when a fault is detected in the monitored request for regenerative braking torque and achieved regenerative braking torque.

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