Invention Grant
- Patent Title: Managing lean air/fuel transients in coordinated torque control
- Patent Title (中): 在协调扭矩控制中管理贫气/燃料瞬态
-
Application No.: US12437193Application Date: 2009-05-07
-
Publication No.: US07748362B2Publication Date: 2010-07-06
- Inventor: Christopher E. Whitney , Michael S. Emmorey , Jeffrey M. Kaiser , Robert C. Simon, Jr. , Cheryl A. Williams , Jon C. Wasberg , Eric Ferch , Craig M. Sawdon
- Applicant: Christopher E. Whitney , Michael S. Emmorey , Jeffrey M. Kaiser , Robert C. Simon, Jr. , Cheryl A. Williams , Jon C. Wasberg , Eric Ferch , Craig M. Sawdon
- Assignee: GM Global Technology Operations, Inc.
- Current Assignee: GM Global Technology Operations, Inc.
- Main IPC: F02P5/15
- IPC: F02P5/15

Abstract:
An engine control system includes an air control module, a spark control module, a torque control module, a transient detection module, and a launch torque module. The air control module controls a throttle valve of an engine based on a commanded predicted torque. The spark control module controls spark advance of the engine based on a commanded immediate torque. The torque control module increases the commanded predicted torque when a catalyst light-off (CLO) mode is active, and increases the commanded immediate torque when a driver actuates an accelerator input. The transient detection module generates a lean transient signal when an air per cylinder increase is detected while the CLO mode is active. The launch torque module generates a torque offset signal based on the lean transient signal. The torque control module increases the commanded immediate torque based on the torque offset signal.
Public/Granted literature
- US20090283070A1 MANAGING LEAN AIR/FUEL TRANSIENTS IN COORDINATED TORQUE CONTROL Public/Granted day:2009-11-19
Information query
IPC分类: