Patent · US Active

System and method for decreasing acceleration disturbance during transmission upshifts

US8504265B2 · kind B2 · utility

2Cited by

3References

20Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Andrew W. Baur · Flushing, US
Craig J. Hawkins · Howell, US
Michael J. Pitsch · Ann Arbor, US

Key dates

Filing date	Sep 23, 2011
Grant date	Aug 6, 2013
Priority date	—
Expiry date	Oct 14, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2250/21
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A control system for an engine includes a torque phase detection module, a torque request generation module, and an engine torque control module. The torque phase detection module detects a start of a torque phase of an upshift of a transmission coupled to the engine. The torque request generation module generates an engine torque request at the start of the torque phase of the transmission upshift. The engine torque control module controls engine torque during the torque phase of the transmission upshift based on the engine torque request.

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