Title: System and method of cylinder deactivation for optimal engine torque-speed map operation

Abstract

This disclosure provides a system and method for determining cylinder deactivation in a vehicle engine to optimize fuel consumption while providing the desired or demanded power. In one aspect, data indicative of terrain variation is utilized in determining a vehicle target operating state. An optimal active cylinder distribution and corresponding fueling is determined from a recommendation from a supervisory agent monitoring the operating state of the vehicle of a subset of the total number of cylinders, and a determination as to which number of cylinders provides the optimal fuel consumption. Once the optimal cylinder number is determined, a transmission gear shift recommendation is provided in view of the determined active cylinder distribution and target operating state.

Inventors:

Sujan, Vivek A; Frazier, Timothy R; Follen, Kenneth; Moon, Suk-Min

Issue Date:

2014-11-11

Research Org.:

Cummins Iintellectual Property, Inc., Minneapolis, MN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1163669

Patent Number(s):

8886422

Application Number:

13/407,715

Assignee:

Cummins Iintellectual Property, Inc. (Minneapolis, MN)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60W - CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION

B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60Y - INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY

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B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60W - CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION

B60W10/06 - including control of combustion engines
B60W2552/00 - Input parameters relating to infrastructure
B60W30/1882 - {characterised by the working point of the engine, e.g. by using engine output chart}

B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60Y - INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY

B60Y2300/435 - Control of engine cylinder cut-off

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

F02D2200/701 - Information about vehicle position, e.g. from navigation system or GPS signal
F02D41/0087 - {Selective cylinder activation, i.e. partial cylinder operation
F02D41/021 - {Introducing corrections for particular conditions exterior to the engine
F02D41/0225 - {in relation with the gear ratio or shift lever position}

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16H - GEARING

F16H2063/426 - {with means for advising the driver for proper shift action, e.g. prompting the driver with allowable selection range of ratios}
F16H59/76 - Number of cylinders operating
F16H61/0213 - {characterised by the method for generating shift signals}

G - PHYSICS G07 - CHECKING-DEVICES G07C - TIME OR ATTENDANCE REGISTERS

G07C5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time

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DOE Contract Number:  

EE0003403

Resource Type:

Patent

Resource Relation:

Patent File Date: 2012 Feb 28

Country of Publication:

United States

Language:

English

Subject:

33 ADVANCED PROPULSION SYSTEMS