公开(公告)号：US20140163839A1

公开(公告)日：2014-06-12

申请号：US13712267

申请日：2012-12-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Eric D. Staley ,  Ronald J. Pierik ,  Jeremy T. Demarest ,  Timothy M. Karnjate

IPC: F02D17/02

CPC classification number: F02D17/02 ,  F02D41/0087 ,  F02D2250/18 ,  F02D2250/24

Abstract: A control system for an engine includes a torque modifier module that selects one of a plurality of torque modifier values based on variations in an accessory load. A torque calculating module calculates a maximum torque value for operation in a cylinder deactivation mode based on the selected one of the plurality of torque modifier values. A torque control module selectively switches the engine between the cylinder deactivation mode and a cylinder activation mode based on the maximum torque value.

Abstract translation: 用于发动机的控制系统包括扭矩调节器模块，其基于附件负载的变化选择多个扭矩修正值中的一个。 扭矩计算模块基于所选择的多个扭矩修正值中的一个，计算用于在气缸停用模式中操作的最大扭矩值。 转矩控制模块基于最大扭矩值，有选择地在发动机停止模式和气缸启动模式之间切换发动机。

公开(公告)号：US09605567B2

公开(公告)日：2017-03-28

申请号：US14329038

申请日：2014-07-11

Applicant: GM Global Technology Operations LLC

Inventor： Timothy M. Karnjate ,  David R. Staley ,  Mike M. McDonald ,  Gregory J. York

IPC: F01M1/16 ,  F01M1/02

CPC classification number: F01M1/16 ,  F01M1/02 ,  F01M2250/60

Abstract: A first target module determines a first target output pressure of an engine oil pump based on a speed of the engine oil pump and an oil temperature. A second target module, based on a runtime period of an engine, sets a second target output pressure of the engine oil pump to one of greater than and equal to the first target output pressure. A third target module, based on an engine load, sets a third target output pressure of the engine oil pump to one of greater than and equal to the first target output pressure. A selection module selects one of the second and third target output pressures, sets a selected target output pressure based on the selected one of the second and third target output pressures, and controls displacement of the engine oil pump based on the selected target output pressure.